[rtems-libbsd commit] kern/sys: Import NFS and NFS file system client
Chris Johns
chrisj at rtems.org
Thu Sep 2 02:43:01 UTC 2021
Module: rtems-libbsd
Branch: 6-freebsd-12
Commit: 6138f242be4f9d989a4052be71f1b116bd806e44
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=6138f242be4f9d989a4052be71f1b116bd806e44
Author: Chris Johns <chrisj at rtems.org>
Date: Thu Jul 29 13:35:16 2021 +1000
kern/sys: Import NFS and NFS file system client
Update #4475
---
freebsd/sys/fs/nfs/nfs.h | 805 ++++
freebsd/sys/fs/nfs/nfs_commonacl.c | 485 ++
freebsd/sys/fs/nfs/nfs_commonkrpc.c | 1436 ++++++
freebsd/sys/fs/nfs/nfs_commonport.c | 819 ++++
freebsd/sys/fs/nfs/nfs_commonsubs.c | 4769 +++++++++++++++++++
freebsd/sys/fs/nfs/nfs_var.h | 742 +++
freebsd/sys/fs/nfs/nfscl.h | 84 +
freebsd/sys/fs/nfs/nfsclstate.h | 446 ++
freebsd/sys/fs/nfs/nfsdport.h | 125 +
freebsd/sys/fs/nfs/nfskpiport.h | 75 +
freebsd/sys/fs/nfs/nfsm_subs.h | 146 +
freebsd/sys/fs/nfs/nfsport.h | 1086 +++++
freebsd/sys/fs/nfs/nfsproto.h | 1426 ++++++
freebsd/sys/fs/nfs/nfsrvcache.h | 124 +
freebsd/sys/fs/nfs/nfsrvstate.h | 410 ++
freebsd/sys/fs/nfs/nfsv4_errstr.h | 103 +
freebsd/sys/fs/nfs/rpcv2.h | 209 +
freebsd/sys/fs/nfs/xdr_subs.h | 101 +
freebsd/sys/fs/nfsclient/nfs.h | 128 +
freebsd/sys/fs/nfsclient/nfs_clbio.c | 1874 ++++++++
freebsd/sys/fs/nfsclient/nfs_clcomsubs.c | 439 ++
freebsd/sys/fs/nfsclient/nfs_clkdtrace.c | 587 +++
freebsd/sys/fs/nfsclient/nfs_clkrpc.c | 299 ++
freebsd/sys/fs/nfsclient/nfs_clnfsiod.c | 343 ++
freebsd/sys/fs/nfsclient/nfs_clnode.c | 365 ++
freebsd/sys/fs/nfsclient/nfs_clport.c | 1414 ++++++
freebsd/sys/fs/nfsclient/nfs_clrpcops.c | 7666 ++++++++++++++++++++++++++++++
freebsd/sys/fs/nfsclient/nfs_clstate.c | 5458 +++++++++++++++++++++
freebsd/sys/fs/nfsclient/nfs_clsubs.c | 391 ++
freebsd/sys/fs/nfsclient/nfs_clvfsops.c | 2051 ++++++++
freebsd/sys/fs/nfsclient/nfs_clvnops.c | 3604 ++++++++++++++
freebsd/sys/fs/nfsclient/nfs_kdtrace.h | 122 +
freebsd/sys/fs/nfsclient/nfsmount.h | 129 +
freebsd/sys/fs/nfsclient/nfsnode.h | 199 +
freebsd/sys/fs/nfsclient/nlminfo.h | 43 +
freebsd/sys/nfs/bootp_subr.c | 1904 ++++++++
freebsd/sys/nfs/krpc.h | 31 +
freebsd/sys/nfs/krpc_subr.c | 470 ++
freebsd/sys/nfs/nfs_common.h | 137 +
freebsd/sys/nfs/nfs_fha.c | 527 ++
freebsd/sys/nfs/nfs_fha.h | 122 +
freebsd/sys/nfs/nfs_kdtrace.h | 122 +
freebsd/sys/nfs/nfs_lock.c | 403 ++
freebsd/sys/nfs/nfs_lock.h | 94 +
freebsd/sys/nfs/nfs_mountcommon.h | 56 +
freebsd/sys/nfs/nfs_nfssvc.c | 154 +
freebsd/sys/nfs/nfsdiskless.h | 116 +
freebsd/sys/nfs/nfsproto.h | 701 +++
freebsd/sys/nfs/nfssvc.h | 85 +
freebsd/sys/nfs/xdr_subs.h | 93 +
freebsd/sys/nfsclient/nfs.h | 295 ++
freebsd/sys/nfsclient/nfsargs.h | 106 +
freebsd/sys/nfsclient/nfsm_subs.h | 180 +
freebsd/sys/nfsclient/nfsmount.h | 132 +
freebsd/sys/nfsclient/nfsnode.h | 215 +
freebsd/sys/nfsclient/nfsstats.h | 71 +
freebsd/sys/nfsclient/nlminfo.h | 44 +
57 files changed, 44561 insertions(+)
diff --git a/freebsd/sys/fs/nfs/nfs.h b/freebsd/sys/fs/nfs/nfs.h
new file mode 100644
index 0000000..c6fb59f
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs.h
@@ -0,0 +1,805 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFS_H_
+#define _NFS_NFS_H_
+/*
+ * Tunable constants for nfs
+ */
+
+#define NFS_MAXIOVEC 34
+#define NFS_TICKINTVL 500 /* Desired time for a tick (msec) */
+#define NFS_HZ (hz / nfscl_ticks) /* Ticks/sec */
+#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
+#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
+#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
+#define NFS_TCPTIMEO 300 /* TCP timeout */
+#define NFS_MAXRCVTIMEO 60 /* 1 minute in seconds */
+#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
+#define NFS_MAXREXMIT 100 /* Stop counting after this many */
+#define NFSV4_CALLBACKTIMEO (2 * NFS_HZ) /* Timeout in ticks */
+#define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */
+#define NFSV4_SLOTS 64 /* Number of slots, fore channel */
+#define NFSV4_CBSLOTS 8 /* Number of slots, back channel */
+#define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */
+#define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */
+ /* to gssd or nfsuserd */
+#define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */
+#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
+#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
+#define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */
+#define NFS_MAXGRPS 16 /* Max. size of groups list */
+#define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */
+#ifndef NFS_REMOVETIMEO
+#define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */
+#endif
+#ifndef NFS_MINATTRTIMO
+#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
+#endif
+#ifndef NFS_MAXATTRTIMO
+#define NFS_MAXATTRTIMO 60
+#endif
+#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
+#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
+#define NFS_READDIRSIZE 8192 /* Def. readdir size */
+#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
+#define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */
+#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */
+#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
+#ifndef NFSRV_LEASE
+#define NFSRV_LEASE 120 /* Lease time in seconds for V4 */
+#endif /* assigned to nfsrv_lease */
+#ifndef NFSRV_STALELEASE
+#define NFSRV_STALELEASE (5 * nfsrv_lease)
+#endif
+#ifndef NFSRV_MOULDYLEASE
+#define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */
+#endif
+#ifndef NFSCLIENTHASHSIZE
+#define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */
+#endif
+#ifndef NFSLOCKHASHSIZE
+#define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */
+#endif
+#ifndef NFSSESSIONHASHSIZE
+#define NFSSESSIONHASHSIZE 20 /* Size of server session hash table */
+#endif
+#define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */
+#define NFSLAYOUTHIGHWATER 1000000 /* Upper limit for # of layouts */
+#ifndef NFSCLDELEGHIGHWATER
+#define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */
+#endif
+#ifndef NFSCLLAYOUTHIGHWATER
+#define NFSCLLAYOUTHIGHWATER 10000 /* limit for client pNFS layouts */
+#endif
+#ifndef NFSNOOPEN /* Inactive open owner (sec) */
+#define NFSNOOPEN 120
+#endif
+#define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */
+#define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */
+#ifndef NFSRVCACHE_UDPTIMEOUT
+#define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */
+#endif
+#ifndef NFSRVCACHE_UDPHIGHWATER
+#define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */
+#endif
+#ifndef NFSRVCACHE_TCPTIMEOUT
+#define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */
+#endif
+#ifndef NFSRVCACHE_FLOODLEVEL
+#define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */
+#endif
+#ifndef NFSRV_CLIENTHIGHWATER
+#define NFSRV_CLIENTHIGHWATER 1000
+#endif
+#ifndef NFSRV_MAXDUMPLIST
+#define NFSRV_MAXDUMPLIST 10000
+#endif
+#ifndef NFS_ACCESSCACHESIZE
+#define NFS_ACCESSCACHESIZE 8
+#endif
+#define NFSV4_CBPORT 7745 /* Callback port for testing */
+
+/*
+ * This macro defines the high water mark for issuing V4 delegations.
+ * (It is currently set at a conservative 20% of nfsrv_v4statelimit. This
+ * may want to increase when clients can make more effective use of
+ * delegations.)
+ */
+#define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > nfsrv_v4statelimit)
+
+#define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */
+
+/*
+ * Oddballs
+ */
+#define NFS_CMPFH(n, f, s) \
+ ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s)))
+#define NFSRV_CMPFH(nf, ns, f, s) \
+ ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s)))
+#define NFS_CMPTIME(t1, t2) \
+ ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec)
+#define NFS_SETTIME(t) do { \
+ (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0)
+#define NFS_SRVMAXDATA(n) \
+ (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \
+ NFS_SRVMAXIO : NFS_V2MAXDATA)
+#define NFS64BITSSET 0xffffffffffffffffull
+#define NFS64BITSMINUS1 0xfffffffffffffffeull
+
+/*
+ * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs
+ * and nfsloaduser should ever try and use it.
+ */
+struct nfsd_addsock_args {
+ int sock; /* Socket to serve */
+ caddr_t name; /* Client addr for connection based sockets */
+ int namelen; /* Length of name */
+};
+
+/*
+ * nfsd argument for new krpc.
+ * (New version supports pNFS, indicated by NFSSVC_NEWSTRUCT flag.)
+ */
+struct nfsd_nfsd_args {
+ const char *principal; /* GSS-API service principal name */
+ int minthreads; /* minimum service thread count */
+ int maxthreads; /* maximum service thread count */
+ int version; /* Allow multiple variants */
+ char *addr; /* pNFS DS addresses */
+ int addrlen; /* Length of addrs */
+ char *dnshost; /* DNS names for DS addresses */
+ int dnshostlen; /* Length of DNS names */
+ char *dspath; /* DS Mount path on MDS */
+ int dspathlen; /* Length of DS Mount path on MDS */
+ char *mdspath; /* MDS mount for DS path on MDS */
+ int mdspathlen; /* Length of MDS mount for DS path on MDS */
+ int mirrorcnt; /* Number of mirrors to create on DSs */
+};
+
+/*
+ * NFSDEV_MAXMIRRORS - Maximum level of mirroring for a DS.
+ * (Most will only put files on two DSs, but this setting allows up to 4.)
+ * NFSDEV_MAXVERS - maximum number of NFS versions supported by Flex File.
+ */
+#define NFSDEV_MAXMIRRORS 4
+#define NFSDEV_MAXVERS 4
+
+struct nfsd_pnfsd_args {
+ int op; /* Which pNFSd op to perform. */
+ char *mdspath; /* Path of MDS file. */
+ char *dspath; /* Path of recovered DS mounted on dir. */
+ char *curdspath; /* Path of current DS mounted on dir. */
+};
+
+#define PNFSDOP_DELDSSERVER 1
+#define PNFSDOP_COPYMR 2
+#define PNFSDOP_FORCEDELDS 3
+
+/* Old version. */
+struct nfsd_nfsd_oargs {
+ const char *principal; /* GSS-API service principal name */
+ int minthreads; /* minimum service thread count */
+ int maxthreads; /* maximum service thread count */
+};
+
+/*
+ * Arguments for use by the callback daemon.
+ */
+struct nfsd_nfscbd_args {
+ const char *principal; /* GSS-API service principal name */
+};
+
+struct nfscbd_args {
+ int sock; /* Socket to serve */
+ caddr_t name; /* Client addr for connection based sockets */
+ int namelen; /* Length of name */
+ u_short port; /* Port# for callbacks */
+};
+
+struct nfsd_idargs {
+ int nid_flag; /* Flags (see below) */
+ uid_t nid_uid; /* user/group id */
+ gid_t nid_gid;
+ int nid_usermax; /* Upper bound on user name cache */
+ int nid_usertimeout;/* User name timeout (minutes) */
+ u_char *nid_name; /* Name */
+ int nid_namelen; /* and its length */
+ gid_t *nid_grps; /* and the list */
+ int nid_ngroup; /* Size of groups list */
+};
+
+struct nfsd_oidargs {
+ int nid_flag; /* Flags (see below) */
+ uid_t nid_uid; /* user/group id */
+ gid_t nid_gid;
+ int nid_usermax; /* Upper bound on user name cache */
+ int nid_usertimeout;/* User name timeout (minutes) */
+ u_char *nid_name; /* Name */
+ int nid_namelen; /* and its length */
+};
+
+struct nfsuserd_args {
+ sa_family_t nuserd_family; /* Address family to use */
+ u_short nuserd_port; /* Port# */
+};
+
+struct nfsd_clid {
+ int nclid_idlen; /* Length of client id */
+ u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */
+};
+
+struct nfsd_dumplist {
+ int ndl_size; /* Number of elements */
+ void *ndl_list; /* and the list of elements */
+};
+
+struct nfsd_dumpclients {
+ u_int32_t ndcl_flags; /* LCL_xxx flags */
+ u_int32_t ndcl_nopenowners; /* Number of openowners */
+ u_int32_t ndcl_nopens; /* and opens */
+ u_int32_t ndcl_nlockowners; /* and of lockowners */
+ u_int32_t ndcl_nlocks; /* and of locks */
+ u_int32_t ndcl_ndelegs; /* and of delegations */
+ u_int32_t ndcl_nolddelegs; /* and old delegations */
+ sa_family_t ndcl_addrfam; /* Callback address */
+ union {
+ struct in_addr sin_addr;
+ struct in6_addr sin6_addr;
+ } ndcl_cbaddr;
+ struct nfsd_clid ndcl_clid; /* and client id */
+};
+
+struct nfsd_dumplocklist {
+ char *ndllck_fname; /* File Name */
+ int ndllck_size; /* Number of elements */
+ void *ndllck_list; /* and the list of elements */
+};
+
+struct nfsd_dumplocks {
+ u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */
+ nfsv4stateid_t ndlck_stateid; /* stateid */
+ u_int64_t ndlck_first; /* lock byte range */
+ u_int64_t ndlck_end;
+ struct nfsd_clid ndlck_owner; /* Owner of open/lock */
+ sa_family_t ndlck_addrfam; /* Callback address */
+ union {
+ struct in_addr sin_addr;
+ struct in6_addr sin6_addr;
+ } ndlck_cbaddr;
+ struct nfsd_clid ndlck_clid; /* and client id */
+};
+
+/*
+ * Structure for referral information.
+ */
+struct nfsreferral {
+ u_char *nfr_srvlist; /* List of servers */
+ int nfr_srvcnt; /* number of servers */
+ vnode_t nfr_vp; /* vnode for referral */
+ uint64_t nfr_dfileno; /* assigned dir inode# */
+};
+
+/*
+ * Flags for lc_flags and opsflags for nfsrv_getclient().
+ */
+#define LCL_NEEDSCONFIRM 0x00000001
+#define LCL_DONTCLEAN 0x00000002
+#define LCL_WAKEUPWANTED 0x00000004
+#define LCL_TCPCALLBACK 0x00000008
+#define LCL_CALLBACKSON 0x00000010
+#define LCL_INDEXNOTOK 0x00000020
+#define LCL_STAMPEDSTABLE 0x00000040
+#define LCL_EXPIREIT 0x00000080
+#define LCL_CBDOWN 0x00000100
+#define LCL_KERBV 0x00000400
+#define LCL_NAME 0x00000800
+#define LCL_NEEDSCBNULL 0x00001000
+#define LCL_GSSINTEGRITY 0x00002000
+#define LCL_GSSPRIVACY 0x00004000
+#define LCL_ADMINREVOKED 0x00008000
+#define LCL_RECLAIMCOMPLETE 0x00010000
+#define LCL_NFSV41 0x00020000
+#define LCL_DONEBINDCONN 0x00040000
+#define LCL_RECLAIMONEFS 0x00080000
+
+#define LCL_GSS LCL_KERBV /* Or of all mechs */
+
+/*
+ * Bits for flags in nfslock and nfsstate.
+ * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as
+ * below, in the correct order, so the shifts work for tests.
+ */
+#define NFSLCK_READACCESS 0x00000001
+#define NFSLCK_WRITEACCESS 0x00000002
+#define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS)
+#define NFSLCK_SHIFT 2
+#define NFSLCK_READDENY 0x00000004
+#define NFSLCK_WRITEDENY 0x00000008
+#define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY)
+#define NFSLCK_SHAREBITS \
+ (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY)
+#define NFSLCK_LOCKSHIFT 4
+#define NFSLCK_READ 0x00000010
+#define NFSLCK_WRITE 0x00000020
+#define NFSLCK_BLOCKING 0x00000040
+#define NFSLCK_RECLAIM 0x00000080
+#define NFSLCK_OPENTOLOCK 0x00000100
+#define NFSLCK_TEST 0x00000200
+#define NFSLCK_LOCK 0x00000400
+#define NFSLCK_UNLOCK 0x00000800
+#define NFSLCK_OPEN 0x00001000
+#define NFSLCK_CLOSE 0x00002000
+#define NFSLCK_CHECK 0x00004000
+#define NFSLCK_RELEASE 0x00008000
+#define NFSLCK_NEEDSCONFIRM 0x00010000
+#define NFSLCK_CONFIRM 0x00020000
+#define NFSLCK_DOWNGRADE 0x00040000
+#define NFSLCK_DELEGREAD 0x00080000
+#define NFSLCK_DELEGWRITE 0x00100000
+#define NFSLCK_DELEGCUR 0x00200000
+#define NFSLCK_DELEGPREV 0x00400000
+#define NFSLCK_OLDDELEG 0x00800000
+#define NFSLCK_DELEGRECALL 0x01000000
+#define NFSLCK_SETATTR 0x02000000
+#define NFSLCK_DELEGPURGE 0x04000000
+#define NFSLCK_DELEGRETURN 0x08000000
+#define NFSLCK_WANTWDELEG 0x10000000
+#define NFSLCK_WANTRDELEG 0x20000000
+#define NFSLCK_WANTNODELEG 0x40000000
+#define NFSLCK_WANTBITS \
+ (NFSLCK_WANTWDELEG | NFSLCK_WANTRDELEG | NFSLCK_WANTNODELEG)
+
+/* And bits for nid_flag */
+#define NFSID_INITIALIZE 0x0001
+#define NFSID_ADDUID 0x0002
+#define NFSID_DELUID 0x0004
+#define NFSID_ADDUSERNAME 0x0008
+#define NFSID_DELUSERNAME 0x0010
+#define NFSID_ADDGID 0x0020
+#define NFSID_DELGID 0x0040
+#define NFSID_ADDGROUPNAME 0x0080
+#define NFSID_DELGROUPNAME 0x0100
+
+/*
+ * fs.nfs sysctl(3) identifiers
+ */
+#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
+
+/*
+ * Here is the definition of the attribute bits array and macros that
+ * manipulate it.
+ * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!!
+ * It is (NFSATTRBIT_MAX + 31) / 32.
+ */
+#define NFSATTRBIT_MAXWORDS 3
+
+typedef struct {
+ u_int32_t bits[NFSATTRBIT_MAXWORDS];
+} nfsattrbit_t;
+
+#define NFSZERO_ATTRBIT(b) do { \
+ (b)->bits[0] = 0; \
+ (b)->bits[1] = 0; \
+ (b)->bits[2] = 0; \
+} while (0)
+
+#define NFSSET_ATTRBIT(t, f) do { \
+ (t)->bits[0] = (f)->bits[0]; \
+ (t)->bits[1] = (f)->bits[1]; \
+ (t)->bits[2] = (f)->bits[2]; \
+} while (0)
+
+#define NFSSETSUPP_ATTRBIT(b, n) do { \
+ (b)->bits[0] = NFSATTRBIT_SUPP0; \
+ (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY1); \
+ (b)->bits[2] = (NFSATTRBIT_SUPP2 | NFSATTRBIT_SUPPSETONLY2); \
+ if (((n)->nd_flag & ND_NFSV41) == 0) { \
+ (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \
+ (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \
+ } \
+} while (0)
+
+#define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32)))
+#define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32)))
+#define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32)))
+
+#define NFSCLRALL_ATTRBIT(b, a) do { \
+ (b)->bits[0] &= ~((a)->bits[0]); \
+ (b)->bits[1] &= ~((a)->bits[1]); \
+ (b)->bits[2] &= ~((a)->bits[2]); \
+} while (0)
+
+#define NFSCLRNOT_ATTRBIT(b, a) do { \
+ (b)->bits[0] &= ((a)->bits[0]); \
+ (b)->bits[1] &= ((a)->bits[1]); \
+ (b)->bits[2] &= ((a)->bits[2]); \
+} while (0)
+
+#define NFSCLRNOTFILLABLE_ATTRBIT(b, n) do { \
+ (b)->bits[0] &= NFSATTRBIT_SUPP0; \
+ (b)->bits[1] &= NFSATTRBIT_SUPP1; \
+ (b)->bits[2] &= NFSATTRBIT_SUPP2; \
+ if (((n)->nd_flag & ND_NFSV41) == 0) { \
+ (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \
+ (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \
+ } \
+} while (0)
+
+#define NFSCLRNOTSETABLE_ATTRBIT(b, n) do { \
+ (b)->bits[0] &= NFSATTRBIT_SETABLE0; \
+ (b)->bits[1] &= NFSATTRBIT_SETABLE1; \
+ (b)->bits[2] &= NFSATTRBIT_SETABLE2; \
+ if (((n)->nd_flag & ND_NFSV41) == 0) \
+ (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \
+} while (0)
+
+#define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1] || (b)->bits[2])
+#define NFSEQUAL_ATTRBIT(b, p) ((b)->bits[0] == (p)->bits[0] && \
+ (b)->bits[1] == (p)->bits[1] && (b)->bits[2] == (p)->bits[2])
+
+#define NFSGETATTR_ATTRBIT(b) do { \
+ (b)->bits[0] = NFSATTRBIT_GETATTR0; \
+ (b)->bits[1] = NFSATTRBIT_GETATTR1; \
+ (b)->bits[2] = NFSATTRBIT_GETATTR2; \
+} while (0)
+
+#define NFSWCCATTR_ATTRBIT(b) do { \
+ (b)->bits[0] = NFSATTRBIT_WCCATTR0; \
+ (b)->bits[1] = NFSATTRBIT_WCCATTR1; \
+ (b)->bits[2] = NFSATTRBIT_WCCATTR2; \
+} while (0)
+
+#define NFSWRITEGETATTR_ATTRBIT(b) do { \
+ (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \
+ (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; \
+ (b)->bits[2] = NFSATTRBIT_WRITEGETATTR2; \
+} while (0)
+
+#define NFSCBGETATTR_ATTRBIT(b, c) do { \
+ (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \
+ (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); \
+ (c)->bits[2] = ((b)->bits[2] & NFSATTRBIT_CBGETATTR2); \
+} while (0)
+
+#define NFSPATHCONF_GETATTRBIT(b) do { \
+ (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \
+ (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; \
+ (b)->bits[2] = NFSGETATTRBIT_PATHCONF2; \
+} while (0)
+
+#define NFSSTATFS_GETATTRBIT(b) do { \
+ (b)->bits[0] = NFSGETATTRBIT_STATFS0; \
+ (b)->bits[1] = NFSGETATTRBIT_STATFS1; \
+ (b)->bits[2] = NFSGETATTRBIT_STATFS2; \
+} while (0)
+
+#define NFSISSETSTATFS_ATTRBIT(b) \
+ (((b)->bits[0] & NFSATTRBIT_STATFS0) || \
+ ((b)->bits[1] & NFSATTRBIT_STATFS1) || \
+ ((b)->bits[2] & NFSATTRBIT_STATFS2))
+
+#define NFSCLRSTATFS_ATTRBIT(b) do { \
+ (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \
+ (b)->bits[1] &= ~NFSATTRBIT_STATFS1; \
+ (b)->bits[2] &= ~NFSATTRBIT_STATFS2; \
+} while (0)
+
+#define NFSREADDIRPLUS_ATTRBIT(b) do { \
+ (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \
+ (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; \
+ (b)->bits[2] = NFSATTRBIT_READDIRPLUS2; \
+} while (0)
+
+#define NFSREFERRAL_ATTRBIT(b) do { \
+ (b)->bits[0] = NFSATTRBIT_REFERRAL0; \
+ (b)->bits[1] = NFSATTRBIT_REFERRAL1; \
+ (b)->bits[2] = NFSATTRBIT_REFERRAL2; \
+} while (0)
+
+/*
+ * Store uid, gid creds that were used when the stateid was acquired.
+ * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire,
+ * so that's how many gets stored here.
+ */
+struct nfscred {
+ uid_t nfsc_uid;
+ gid_t nfsc_groups[NFS_MAXGRPS + 1];
+ int nfsc_ngroups;
+};
+
+/*
+ * Constants that define the file handle for the V4 root directory.
+ * (The FSID must never be used by other file systems that are exported.)
+ */
+#define NFSV4ROOT_FSID0 ((int32_t) -1)
+#define NFSV4ROOT_FSID1 ((int32_t) -1)
+#define NFSV4ROOT_REFERRAL ((int32_t) -2)
+#define NFSV4ROOT_INO 2 /* It's traditional */
+#define NFSV4ROOT_GEN 1
+
+/*
+ * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
+ * What should be in this set is open to debate, but I believe that since
+ * I/O system calls on ufs are never interrupted by signals the set should
+ * be minimal. My reasoning is that many current programs that use signals
+ * such as SIGALRM will not expect file I/O system calls to be interrupted
+ * by them and break.
+ */
+#if defined(_KERNEL) || defined(KERNEL)
+
+struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
+
+/*
+ * Socket errors ignored for connectionless sockets?
+ * For now, ignore them all
+ */
+#define NFSIGNORE_SOERROR(s, e) \
+ ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
+ ((s) & PR_CONNREQUIRED) == 0)
+
+
+/*
+ * This structure holds socket information for a connection. Used by the
+ * client and the server for callbacks.
+ */
+struct nfssockreq {
+ NFSSOCKADDR_T nr_nam;
+ int nr_sotype;
+ int nr_soproto;
+ int nr_soflags;
+ struct ucred *nr_cred;
+ int nr_lock;
+ NFSMUTEX_T nr_mtx;
+ u_int32_t nr_prog;
+ u_int32_t nr_vers;
+ struct __rpc_client *nr_client;
+ AUTH *nr_auth;
+};
+
+/*
+ * And associated nr_lock bits.
+ */
+#define NFSR_SNDLOCK 0x01
+#define NFSR_WANTSND 0x02
+#define NFSR_RCVLOCK 0x04
+#define NFSR_WANTRCV 0x08
+#define NFSR_RESERVEDPORT 0x10
+#define NFSR_LOCALHOST 0x20
+
+/*
+ * Queue head for nfsreq's
+ */
+TAILQ_HEAD(nfsreqhead, nfsreq);
+
+/* This is the only nfsreq R_xxx flag still used. */
+#define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this
+ rpc gets a stale state reply */
+
+/*
+ * Network address hash list element
+ */
+union nethostaddr {
+ struct in_addr had_inet;
+ struct in6_addr had_inet6;
+};
+
+/*
+ * Structure of list of mechanisms.
+ */
+struct nfsgss_mechlist {
+ int len;
+ const u_char *str;
+ int totlen;
+};
+#define KERBV_MECH 0 /* position in list */
+
+/*
+ * This structure is used by the server for describing each request.
+ */
+struct nfsrv_descript {
+ mbuf_t nd_mrep; /* Request mbuf list */
+ mbuf_t nd_md; /* Current dissect mbuf */
+ mbuf_t nd_mreq; /* Reply mbuf list */
+ mbuf_t nd_mb; /* Current build mbuf */
+ NFSSOCKADDR_T nd_nam; /* and socket addr */
+ NFSSOCKADDR_T nd_nam2; /* return socket addr */
+ caddr_t nd_dpos; /* Current dissect pos */
+ caddr_t nd_bpos; /* Current build pos */
+ u_int64_t nd_flag; /* nd_flag */
+ u_int16_t nd_procnum; /* RPC # */
+ u_int32_t nd_repstat; /* Reply status */
+ int *nd_errp; /* Pointer to ret status */
+ u_int32_t nd_retxid; /* Reply xid */
+ struct nfsrvcache *nd_rp; /* Assoc. cache entry */
+ fhandle_t nd_fh; /* File handle */
+ struct ucred *nd_cred; /* Credentials */
+ uid_t nd_saveduid; /* Saved uid */
+ u_int64_t nd_sockref; /* Rcv socket ref# */
+ u_int64_t nd_compref; /* Compound RPC ref# */
+ time_t nd_tcpconntime; /* Time TCP connection est. */
+ nfsquad_t nd_clientid; /* Implied clientid */
+ int nd_gssnamelen; /* principal name length */
+ char *nd_gssname; /* principal name */
+ uint32_t *nd_slotseq; /* ptr to slot seq# in req */
+ uint8_t nd_sessionid[NFSX_V4SESSIONID]; /* Session id */
+ uint32_t nd_slotid; /* Slotid for this RPC */
+ SVCXPRT *nd_xprt; /* Server RPC handle */
+ uint32_t *nd_sequence; /* Sequence Op. ptr */
+ nfsv4stateid_t nd_curstateid; /* Current StateID */
+ nfsv4stateid_t nd_savedcurstateid; /* Saved Current StateID */
+};
+
+#define nd_princlen nd_gssnamelen
+#define nd_principal nd_gssname
+
+/* Bits for "nd_flag" */
+#define ND_DONTSAVEREPLY 0x00000001
+#define ND_SAVEREPLY 0x00000002
+#define ND_NFSV2 0x00000004
+#define ND_NFSV3 0x00000008
+#define ND_NFSV4 0x00000010
+#define ND_KERBV 0x00000020
+#define ND_GSSINTEGRITY 0x00000040
+#define ND_GSSPRIVACY 0x00000080
+#define ND_WINDOWVERF 0x00000100
+#define ND_GSSINITREPLY 0x00000200
+#define ND_STREAMSOCK 0x00000400
+#define ND_PUBLOOKUP 0x00000800
+#define ND_USEGSSNAME 0x00001000
+#define ND_SAMETCPCONN 0x00002000
+#define ND_IMPLIEDCLID 0x00004000
+#define ND_NOMOREDATA 0x00008000
+#define ND_V4WCCATTR 0x00010000
+#define ND_NFSCB 0x00020000
+#define ND_AUTHNONE 0x00040000
+#define ND_EXAUTHSYS 0x00080000
+#define ND_EXGSS 0x00100000
+#define ND_EXGSSINTEGRITY 0x00200000
+#define ND_EXGSSPRIVACY 0x00400000
+#define ND_INCRSEQID 0x00800000
+#define ND_NFSCL 0x01000000
+#define ND_NFSV41 0x02000000
+#define ND_HASSEQUENCE 0x04000000
+#define ND_CACHETHIS 0x08000000
+#define ND_LASTOP 0x10000000
+#define ND_LOOPBADSESS 0x20000000
+#define ND_DSSERVER 0x40000000
+#define ND_CURSTATEID 0x80000000
+#define ND_SAVEDCURSTATEID 0x100000000
+#define ND_HASSLOTID 0x200000000
+
+/*
+ * ND_GSS should be the "or" of all GSS type authentications.
+ */
+#define ND_GSS (ND_KERBV)
+
+struct nfsv4_opflag {
+ int retfh;
+ int needscfh;
+ int savereply;
+ int modifyfs;
+ int lktype;
+ int needsseq;
+ int loopbadsess;
+};
+
+/*
+ * Flags used to indicate what to do w.r.t. seqid checking.
+ */
+#define NFSRVSEQID_FIRST 0x01
+#define NFSRVSEQID_LAST 0x02
+#define NFSRVSEQID_OPEN 0x04
+
+/*
+ * assign a doubly linked list to a new head
+ * and prepend one list into another.
+ */
+#define LIST_NEWHEAD(nhead, ohead, field) do { \
+ if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \
+ (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \
+ (ohead)->lh_first = NULL; \
+ } while (0)
+
+#define LIST_PREPEND(head, phead, lelm, field) do { \
+ if ((head)->lh_first != NULL) { \
+ (lelm)->field.le_next = (head)->lh_first; \
+ (lelm)->field.le_next->field.le_prev = \
+ &(lelm)->field.le_next; \
+ } \
+ (head)->lh_first = (phead)->lh_first; \
+ (head)->lh_first->field.le_prev = &(head)->lh_first; \
+ } while (0)
+
+/*
+ * File handle structure for client. Malloc'd to the correct length with
+ * malloc type M_NFSFH.
+ */
+struct nfsfh {
+ u_int16_t nfh_len; /* Length of file handle */
+ u_int8_t nfh_fh[1]; /* and the file handle */
+};
+
+/*
+ * File handle structure for server. The NFSRV_MAXFH constant is
+ * set in nfsdport.h. I use a 32bit length, so that alignment is
+ * preserved.
+ */
+struct nfsrvfh {
+ u_int32_t nfsrvfh_len;
+ u_int8_t nfsrvfh_data[NFSRV_MAXFH];
+};
+
+/*
+ * This structure is used for sleep locks on the NFSv4 nfsd threads and
+ * NFSv4 client data structures.
+ */
+struct nfsv4lock {
+ u_int32_t nfslock_usecnt;
+ u_int8_t nfslock_lock;
+};
+#define NFSV4LOCK_LOCK 0x01
+#define NFSV4LOCK_LOCKWANTED 0x02
+#define NFSV4LOCK_WANTED 0x04
+
+/*
+ * Values for the override argument for nfsvno_accchk().
+ */
+#define NFSACCCHK_NOOVERRIDE 0
+#define NFSACCCHK_ALLOWROOT 1
+#define NFSACCCHK_ALLOWOWNER 2
+
+/*
+ * and values for the vpislocked argument for nfsvno_accchk().
+ */
+#define NFSACCCHK_VPNOTLOCKED 0
+#define NFSACCCHK_VPISLOCKED 1
+
+/*
+ * Slot for the NFSv4.1 Sequence Op.
+ */
+struct nfsslot {
+ int nfssl_inprog;
+ uint32_t nfssl_seq;
+ struct mbuf *nfssl_reply;
+};
+
+/* Enumerated type for nfsuserd state. */
+typedef enum { NOTRUNNING=0, STARTSTOP=1, RUNNING=2 } nfsuserd_state;
+
+#endif /* _KERNEL */
+
+#endif /* _NFS_NFS_H */
diff --git a/freebsd/sys/fs/nfs/nfs_commonacl.c b/freebsd/sys/fs/nfs/nfs_commonacl.c
new file mode 100644
index 0000000..3e8cfe2
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs_commonacl.c
@@ -0,0 +1,485 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef APPLEKEXT
+#include <fs/nfs/nfsport.h>
+
+extern int nfsrv_useacl;
+#endif
+
+static int nfsrv_acemasktoperm(u_int32_t acetype, u_int32_t mask, int owner,
+ enum vtype type, acl_perm_t *permp);
+
+/*
+ * Handle xdr for an ace.
+ */
+APPLESTATIC int
+nfsrv_dissectace(struct nfsrv_descript *nd, struct acl_entry *acep,
+ int *aceerrp, int *acesizep, NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ int len, gotid = 0, owner = 0, error = 0, aceerr = 0;
+ u_char *name, namestr[NFSV4_SMALLSTR + 1];
+ u_int32_t flag, mask, acetype;
+ gid_t gid;
+ uid_t uid;
+
+ *aceerrp = 0;
+ acep->ae_flags = 0;
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ acetype = fxdr_unsigned(u_int32_t, *tl++);
+ flag = fxdr_unsigned(u_int32_t, *tl++);
+ mask = fxdr_unsigned(u_int32_t, *tl++);
+ len = fxdr_unsigned(int, *tl);
+ if (len < 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ } else if (len == 0) {
+ /* Netapp filers return a 0 length who for nil users */
+ acep->ae_tag = ACL_UNDEFINED_TAG;
+ acep->ae_id = ACL_UNDEFINED_ID;
+ acep->ae_perm = (acl_perm_t)0;
+ acep->ae_entry_type = ACL_ENTRY_TYPE_DENY;
+ if (acesizep)
+ *acesizep = 4 * NFSX_UNSIGNED;
+ error = 0;
+ goto nfsmout;
+ }
+ if (len > NFSV4_SMALLSTR)
+ name = malloc(len + 1, M_NFSSTRING, M_WAITOK);
+ else
+ name = namestr;
+ error = nfsrv_mtostr(nd, name, len);
+ if (error) {
+ if (len > NFSV4_SMALLSTR)
+ free(name, M_NFSSTRING);
+ goto nfsmout;
+ }
+ if (len == 6) {
+ if (!NFSBCMP(name, "OWNER@", 6)) {
+ acep->ae_tag = ACL_USER_OBJ;
+ acep->ae_id = ACL_UNDEFINED_ID;
+ owner = 1;
+ gotid = 1;
+ } else if (!NFSBCMP(name, "GROUP@", 6)) {
+ acep->ae_tag = ACL_GROUP_OBJ;
+ acep->ae_id = ACL_UNDEFINED_ID;
+ gotid = 1;
+ }
+ } else if (len == 9 && !NFSBCMP(name, "EVERYONE@", 9)) {
+ acep->ae_tag = ACL_EVERYONE;
+ acep->ae_id = ACL_UNDEFINED_ID;
+ gotid = 1;
+ }
+ if (gotid == 0) {
+ if (flag & NFSV4ACE_IDENTIFIERGROUP) {
+ acep->ae_tag = ACL_GROUP;
+ aceerr = nfsv4_strtogid(nd, name, len, &gid, p);
+ if (aceerr == 0)
+ acep->ae_id = (uid_t)gid;
+ } else {
+ acep->ae_tag = ACL_USER;
+ aceerr = nfsv4_strtouid(nd, name, len, &uid, p);
+ if (aceerr == 0)
+ acep->ae_id = uid;
+ }
+ }
+ if (len > NFSV4_SMALLSTR)
+ free(name, M_NFSSTRING);
+
+ if (aceerr == 0) {
+ /*
+ * Handle the flags.
+ */
+ flag &= ~NFSV4ACE_IDENTIFIERGROUP;
+ if (flag & NFSV4ACE_FILEINHERIT) {
+ flag &= ~NFSV4ACE_FILEINHERIT;
+ acep->ae_flags |= ACL_ENTRY_FILE_INHERIT;
+ }
+ if (flag & NFSV4ACE_DIRECTORYINHERIT) {
+ flag &= ~NFSV4ACE_DIRECTORYINHERIT;
+ acep->ae_flags |= ACL_ENTRY_DIRECTORY_INHERIT;
+ }
+ if (flag & NFSV4ACE_NOPROPAGATEINHERIT) {
+ flag &= ~NFSV4ACE_NOPROPAGATEINHERIT;
+ acep->ae_flags |= ACL_ENTRY_NO_PROPAGATE_INHERIT;
+ }
+ if (flag & NFSV4ACE_INHERITONLY) {
+ flag &= ~NFSV4ACE_INHERITONLY;
+ acep->ae_flags |= ACL_ENTRY_INHERIT_ONLY;
+ }
+ if (flag & NFSV4ACE_SUCCESSFULACCESS) {
+ flag &= ~NFSV4ACE_SUCCESSFULACCESS;
+ acep->ae_flags |= ACL_ENTRY_SUCCESSFUL_ACCESS;
+ }
+ if (flag & NFSV4ACE_FAILEDACCESS) {
+ flag &= ~NFSV4ACE_FAILEDACCESS;
+ acep->ae_flags |= ACL_ENTRY_FAILED_ACCESS;
+ }
+ /*
+ * Set ae_entry_type.
+ */
+ if (acetype == NFSV4ACE_ALLOWEDTYPE)
+ acep->ae_entry_type = ACL_ENTRY_TYPE_ALLOW;
+ else if (acetype == NFSV4ACE_DENIEDTYPE)
+ acep->ae_entry_type = ACL_ENTRY_TYPE_DENY;
+ else if (acetype == NFSV4ACE_AUDITTYPE)
+ acep->ae_entry_type = ACL_ENTRY_TYPE_AUDIT;
+ else if (acetype == NFSV4ACE_ALARMTYPE)
+ acep->ae_entry_type = ACL_ENTRY_TYPE_ALARM;
+ else
+ aceerr = NFSERR_ATTRNOTSUPP;
+ }
+
+ /*
+ * Now, check for unsupported flag bits.
+ */
+ if (aceerr == 0 && flag != 0)
+ aceerr = NFSERR_ATTRNOTSUPP;
+
+ /*
+ * And turn the mask into perm bits.
+ */
+ if (aceerr == 0)
+ aceerr = nfsrv_acemasktoperm(acetype, mask, owner, VREG,
+ &acep->ae_perm);
+ *aceerrp = aceerr;
+ if (acesizep)
+ *acesizep = NFSM_RNDUP(len) + (4 * NFSX_UNSIGNED);
+ error = 0;
+nfsmout:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Turn an NFSv4 ace mask into R/W/X flag bits.
+ */
+static int
+nfsrv_acemasktoperm(u_int32_t acetype, u_int32_t mask, int owner,
+ enum vtype type, acl_perm_t *permp)
+{
+ acl_perm_t perm = 0x0;
+ int error = 0;
+
+ if (mask & NFSV4ACE_READDATA) {
+ mask &= ~NFSV4ACE_READDATA;
+ perm |= ACL_READ_DATA;
+ }
+ if (mask & NFSV4ACE_LISTDIRECTORY) {
+ mask &= ~NFSV4ACE_LISTDIRECTORY;
+ perm |= ACL_LIST_DIRECTORY;
+ }
+ if (mask & NFSV4ACE_WRITEDATA) {
+ mask &= ~NFSV4ACE_WRITEDATA;
+ perm |= ACL_WRITE_DATA;
+ }
+ if (mask & NFSV4ACE_ADDFILE) {
+ mask &= ~NFSV4ACE_ADDFILE;
+ perm |= ACL_ADD_FILE;
+ }
+ if (mask & NFSV4ACE_APPENDDATA) {
+ mask &= ~NFSV4ACE_APPENDDATA;
+ perm |= ACL_APPEND_DATA;
+ }
+ if (mask & NFSV4ACE_ADDSUBDIRECTORY) {
+ mask &= ~NFSV4ACE_ADDSUBDIRECTORY;
+ perm |= ACL_ADD_SUBDIRECTORY;
+ }
+ if (mask & NFSV4ACE_READNAMEDATTR) {
+ mask &= ~NFSV4ACE_READNAMEDATTR;
+ perm |= ACL_READ_NAMED_ATTRS;
+ }
+ if (mask & NFSV4ACE_WRITENAMEDATTR) {
+ mask &= ~NFSV4ACE_WRITENAMEDATTR;
+ perm |= ACL_WRITE_NAMED_ATTRS;
+ }
+ if (mask & NFSV4ACE_EXECUTE) {
+ mask &= ~NFSV4ACE_EXECUTE;
+ perm |= ACL_EXECUTE;
+ }
+ if (mask & NFSV4ACE_SEARCH) {
+ mask &= ~NFSV4ACE_SEARCH;
+ perm |= ACL_EXECUTE;
+ }
+ if (mask & NFSV4ACE_DELETECHILD) {
+ mask &= ~NFSV4ACE_DELETECHILD;
+ perm |= ACL_DELETE_CHILD;
+ }
+ if (mask & NFSV4ACE_READATTRIBUTES) {
+ mask &= ~NFSV4ACE_READATTRIBUTES;
+ perm |= ACL_READ_ATTRIBUTES;
+ }
+ if (mask & NFSV4ACE_WRITEATTRIBUTES) {
+ mask &= ~NFSV4ACE_WRITEATTRIBUTES;
+ perm |= ACL_WRITE_ATTRIBUTES;
+ }
+ if (mask & NFSV4ACE_DELETE) {
+ mask &= ~NFSV4ACE_DELETE;
+ perm |= ACL_DELETE;
+ }
+ if (mask & NFSV4ACE_READACL) {
+ mask &= ~NFSV4ACE_READACL;
+ perm |= ACL_READ_ACL;
+ }
+ if (mask & NFSV4ACE_WRITEACL) {
+ mask &= ~NFSV4ACE_WRITEACL;
+ perm |= ACL_WRITE_ACL;
+ }
+ if (mask & NFSV4ACE_WRITEOWNER) {
+ mask &= ~NFSV4ACE_WRITEOWNER;
+ perm |= ACL_WRITE_OWNER;
+ }
+ if (mask & NFSV4ACE_SYNCHRONIZE) {
+ mask &= ~NFSV4ACE_SYNCHRONIZE;
+ perm |= ACL_SYNCHRONIZE;
+ }
+ if (mask != 0) {
+ error = NFSERR_ATTRNOTSUPP;
+ goto out;
+ }
+ *permp = perm;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/* local functions */
+static int nfsrv_buildace(struct nfsrv_descript *, u_char *, int,
+ enum vtype, int, int, struct acl_entry *);
+
+/*
+ * This function builds an NFS ace.
+ */
+static int
+nfsrv_buildace(struct nfsrv_descript *nd, u_char *name, int namelen,
+ enum vtype type, int group, int owner, struct acl_entry *ace)
+{
+ u_int32_t *tl, aceflag = 0x0, acemask = 0x0, acetype;
+ int full_len;
+
+ full_len = NFSM_RNDUP(namelen);
+ NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED + full_len);
+
+ /*
+ * Fill in the ace type.
+ */
+ if (ace->ae_entry_type & ACL_ENTRY_TYPE_ALLOW)
+ acetype = NFSV4ACE_ALLOWEDTYPE;
+ else if (ace->ae_entry_type & ACL_ENTRY_TYPE_DENY)
+ acetype = NFSV4ACE_DENIEDTYPE;
+ else if (ace->ae_entry_type & ACL_ENTRY_TYPE_AUDIT)
+ acetype = NFSV4ACE_AUDITTYPE;
+ else
+ acetype = NFSV4ACE_ALARMTYPE;
+ *tl++ = txdr_unsigned(acetype);
+
+ /*
+ * Set the flag bits from the ACL.
+ */
+ if (ace->ae_flags & ACL_ENTRY_FILE_INHERIT)
+ aceflag |= NFSV4ACE_FILEINHERIT;
+ if (ace->ae_flags & ACL_ENTRY_DIRECTORY_INHERIT)
+ aceflag |= NFSV4ACE_DIRECTORYINHERIT;
+ if (ace->ae_flags & ACL_ENTRY_NO_PROPAGATE_INHERIT)
+ aceflag |= NFSV4ACE_NOPROPAGATEINHERIT;
+ if (ace->ae_flags & ACL_ENTRY_INHERIT_ONLY)
+ aceflag |= NFSV4ACE_INHERITONLY;
+ if (ace->ae_flags & ACL_ENTRY_SUCCESSFUL_ACCESS)
+ aceflag |= NFSV4ACE_SUCCESSFULACCESS;
+ if (ace->ae_flags & ACL_ENTRY_FAILED_ACCESS)
+ aceflag |= NFSV4ACE_FAILEDACCESS;
+ if (group)
+ aceflag |= NFSV4ACE_IDENTIFIERGROUP;
+ *tl++ = txdr_unsigned(aceflag);
+ if (type == VDIR) {
+ if (ace->ae_perm & ACL_LIST_DIRECTORY)
+ acemask |= NFSV4ACE_LISTDIRECTORY;
+ if (ace->ae_perm & ACL_ADD_FILE)
+ acemask |= NFSV4ACE_ADDFILE;
+ if (ace->ae_perm & ACL_ADD_SUBDIRECTORY)
+ acemask |= NFSV4ACE_ADDSUBDIRECTORY;
+ if (ace->ae_perm & ACL_READ_NAMED_ATTRS)
+ acemask |= NFSV4ACE_READNAMEDATTR;
+ if (ace->ae_perm & ACL_WRITE_NAMED_ATTRS)
+ acemask |= NFSV4ACE_WRITENAMEDATTR;
+ if (ace->ae_perm & ACL_EXECUTE)
+ acemask |= NFSV4ACE_SEARCH;
+ if (ace->ae_perm & ACL_DELETE_CHILD)
+ acemask |= NFSV4ACE_DELETECHILD;
+ if (ace->ae_perm & ACL_READ_ATTRIBUTES)
+ acemask |= NFSV4ACE_READATTRIBUTES;
+ if (ace->ae_perm & ACL_WRITE_ATTRIBUTES)
+ acemask |= NFSV4ACE_WRITEATTRIBUTES;
+ if (ace->ae_perm & ACL_DELETE)
+ acemask |= NFSV4ACE_DELETE;
+ if (ace->ae_perm & ACL_READ_ACL)
+ acemask |= NFSV4ACE_READACL;
+ if (ace->ae_perm & ACL_WRITE_ACL)
+ acemask |= NFSV4ACE_WRITEACL;
+ if (ace->ae_perm & ACL_WRITE_OWNER)
+ acemask |= NFSV4ACE_WRITEOWNER;
+ if (ace->ae_perm & ACL_SYNCHRONIZE)
+ acemask |= NFSV4ACE_SYNCHRONIZE;
+ } else {
+ if (ace->ae_perm & ACL_READ_DATA)
+ acemask |= NFSV4ACE_READDATA;
+ if (ace->ae_perm & ACL_WRITE_DATA)
+ acemask |= NFSV4ACE_WRITEDATA;
+ if (ace->ae_perm & ACL_APPEND_DATA)
+ acemask |= NFSV4ACE_APPENDDATA;
+ if (ace->ae_perm & ACL_READ_NAMED_ATTRS)
+ acemask |= NFSV4ACE_READNAMEDATTR;
+ if (ace->ae_perm & ACL_WRITE_NAMED_ATTRS)
+ acemask |= NFSV4ACE_WRITENAMEDATTR;
+ if (ace->ae_perm & ACL_EXECUTE)
+ acemask |= NFSV4ACE_EXECUTE;
+ if (ace->ae_perm & ACL_READ_ATTRIBUTES)
+ acemask |= NFSV4ACE_READATTRIBUTES;
+ if (ace->ae_perm & ACL_WRITE_ATTRIBUTES)
+ acemask |= NFSV4ACE_WRITEATTRIBUTES;
+ if (ace->ae_perm & ACL_DELETE)
+ acemask |= NFSV4ACE_DELETE;
+ if (ace->ae_perm & ACL_READ_ACL)
+ acemask |= NFSV4ACE_READACL;
+ if (ace->ae_perm & ACL_WRITE_ACL)
+ acemask |= NFSV4ACE_WRITEACL;
+ if (ace->ae_perm & ACL_WRITE_OWNER)
+ acemask |= NFSV4ACE_WRITEOWNER;
+ if (ace->ae_perm & ACL_SYNCHRONIZE)
+ acemask |= NFSV4ACE_SYNCHRONIZE;
+ }
+ *tl++ = txdr_unsigned(acemask);
+ *tl++ = txdr_unsigned(namelen);
+ if (full_len - namelen)
+ *(tl + (namelen / NFSX_UNSIGNED)) = 0x0;
+ NFSBCOPY(name, (caddr_t)tl, namelen);
+ return (full_len + 4 * NFSX_UNSIGNED);
+}
+
+/*
+ * Build an NFSv4 ACL.
+ */
+APPLESTATIC int
+nfsrv_buildacl(struct nfsrv_descript *nd, NFSACL_T *aclp, enum vtype type,
+ NFSPROC_T *p)
+{
+ int i, entrycnt = 0, retlen;
+ u_int32_t *entrycntp;
+ int isowner, isgroup, namelen, malloced;
+ u_char *name, namestr[NFSV4_SMALLSTR];
+
+ NFSM_BUILD(entrycntp, u_int32_t *, NFSX_UNSIGNED);
+ retlen = NFSX_UNSIGNED;
+ /*
+ * Loop through the acl entries, building each one.
+ */
+ for (i = 0; i < aclp->acl_cnt; i++) {
+ isowner = isgroup = malloced = 0;
+ switch (aclp->acl_entry[i].ae_tag) {
+ case ACL_USER_OBJ:
+ isowner = 1;
+ name = "OWNER@";
+ namelen = 6;
+ break;
+ case ACL_GROUP_OBJ:
+ isgroup = 1;
+ name = "GROUP@";
+ namelen = 6;
+ break;
+ case ACL_EVERYONE:
+ name = "EVERYONE@";
+ namelen = 9;
+ break;
+ case ACL_USER:
+ name = namestr;
+ nfsv4_uidtostr(aclp->acl_entry[i].ae_id, &name,
+ &namelen, p);
+ if (name != namestr)
+ malloced = 1;
+ break;
+ case ACL_GROUP:
+ isgroup = 1;
+ name = namestr;
+ nfsv4_gidtostr((gid_t)aclp->acl_entry[i].ae_id, &name,
+ &namelen, p);
+ if (name != namestr)
+ malloced = 1;
+ break;
+ default:
+ continue;
+ }
+ retlen += nfsrv_buildace(nd, name, namelen, type, isgroup,
+ isowner, &aclp->acl_entry[i]);
+ entrycnt++;
+ if (malloced)
+ free(name, M_NFSSTRING);
+ }
+ *entrycntp = txdr_unsigned(entrycnt);
+ return (retlen);
+}
+
+/*
+ * Compare two NFSv4 acls.
+ * Return 0 if they are the same, 1 if not the same.
+ */
+APPLESTATIC int
+nfsrv_compareacl(NFSACL_T *aclp1, NFSACL_T *aclp2)
+{
+ int i;
+ struct acl_entry *acep1, *acep2;
+
+ if (aclp1->acl_cnt != aclp2->acl_cnt)
+ return (1);
+ acep1 = aclp1->acl_entry;
+ acep2 = aclp2->acl_entry;
+ for (i = 0; i < aclp1->acl_cnt; i++) {
+ if (acep1->ae_tag != acep2->ae_tag)
+ return (1);
+ switch (acep1->ae_tag) {
+ case ACL_GROUP:
+ case ACL_USER:
+ if (acep1->ae_id != acep2->ae_id)
+ return (1);
+ /* fall through */
+ case ACL_USER_OBJ:
+ case ACL_GROUP_OBJ:
+ case ACL_OTHER:
+ if (acep1->ae_perm != acep2->ae_perm)
+ return (1);
+ }
+ acep1++;
+ acep2++;
+ }
+ return (0);
+}
diff --git a/freebsd/sys/fs/nfs/nfs_commonkrpc.c b/freebsd/sys/fs/nfs/nfs_commonkrpc.c
new file mode 100644
index 0000000..f85121f
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs_commonkrpc.c
@@ -0,0 +1,1436 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1991, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Socket operations for use by nfs
+ */
+
+#include "opt_kgssapi.h"
+#include "opt_nfs.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/limits.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/mount.h>
+#include <sys/mutex.h>
+#include <sys/proc.h>
+#include <sys/signalvar.h>
+#include <sys/syscallsubr.h>
+#include <sys/sysctl.h>
+#include <sys/syslog.h>
+#include <sys/vnode.h>
+
+#include <rpc/rpc.h>
+#include <rpc/krpc.h>
+
+#include <kgssapi/krb5/kcrypto.h>
+
+#include <fs/nfs/nfsport.h>
+
+#ifdef KDTRACE_HOOKS
+#include <sys/dtrace_bsd.h>
+
+dtrace_nfsclient_nfs23_start_probe_func_t
+ dtrace_nfscl_nfs234_start_probe;
+
+dtrace_nfsclient_nfs23_done_probe_func_t
+ dtrace_nfscl_nfs234_done_probe;
+
+/*
+ * Registered probes by RPC type.
+ */
+uint32_t nfscl_nfs2_start_probes[NFSV41_NPROCS + 1];
+uint32_t nfscl_nfs2_done_probes[NFSV41_NPROCS + 1];
+
+uint32_t nfscl_nfs3_start_probes[NFSV41_NPROCS + 1];
+uint32_t nfscl_nfs3_done_probes[NFSV41_NPROCS + 1];
+
+uint32_t nfscl_nfs4_start_probes[NFSV41_NPROCS + 1];
+uint32_t nfscl_nfs4_done_probes[NFSV41_NPROCS + 1];
+#endif
+
+NFSSTATESPINLOCK;
+NFSREQSPINLOCK;
+NFSDLOCKMUTEX;
+NFSCLSTATEMUTEX;
+extern struct nfsstatsv1 nfsstatsv1;
+extern struct nfsreqhead nfsd_reqq;
+extern int nfscl_ticks;
+extern void (*ncl_call_invalcaches)(struct vnode *);
+extern int nfs_numnfscbd;
+extern int nfscl_debuglevel;
+extern int nfsrv_lease;
+
+SVCPOOL *nfscbd_pool;
+static int nfsrv_gsscallbackson = 0;
+static int nfs_bufpackets = 4;
+static int nfs_reconnects;
+static int nfs3_jukebox_delay = 10;
+static int nfs_skip_wcc_data_onerr = 1;
+static int nfs_dsretries = 2;
+
+SYSCTL_DECL(_vfs_nfs);
+
+SYSCTL_INT(_vfs_nfs, OID_AUTO, bufpackets, CTLFLAG_RW, &nfs_bufpackets, 0,
+ "Buffer reservation size 2 < x < 64");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, reconnects, CTLFLAG_RD, &nfs_reconnects, 0,
+ "Number of times the nfs client has had to reconnect");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs3_jukebox_delay, CTLFLAG_RW, &nfs3_jukebox_delay, 0,
+ "Number of seconds to delay a retry after receiving EJUKEBOX");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, skip_wcc_data_onerr, CTLFLAG_RW, &nfs_skip_wcc_data_onerr, 0,
+ "Disable weak cache consistency checking when server returns an error");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, dsretries, CTLFLAG_RW, &nfs_dsretries, 0,
+ "Number of retries for a DS RPC before failure");
+
+static void nfs_down(struct nfsmount *, struct thread *, const char *,
+ int, int);
+static void nfs_up(struct nfsmount *, struct thread *, const char *,
+ int, int);
+static int nfs_msg(struct thread *, const char *, const char *, int);
+
+struct nfs_cached_auth {
+ int ca_refs; /* refcount, including 1 from the cache */
+ uid_t ca_uid; /* uid that corresponds to this auth */
+ AUTH *ca_auth; /* RPC auth handle */
+};
+
+static int nfsv2_procid[NFS_V3NPROCS] = {
+ NFSV2PROC_NULL,
+ NFSV2PROC_GETATTR,
+ NFSV2PROC_SETATTR,
+ NFSV2PROC_LOOKUP,
+ NFSV2PROC_NOOP,
+ NFSV2PROC_READLINK,
+ NFSV2PROC_READ,
+ NFSV2PROC_WRITE,
+ NFSV2PROC_CREATE,
+ NFSV2PROC_MKDIR,
+ NFSV2PROC_SYMLINK,
+ NFSV2PROC_CREATE,
+ NFSV2PROC_REMOVE,
+ NFSV2PROC_RMDIR,
+ NFSV2PROC_RENAME,
+ NFSV2PROC_LINK,
+ NFSV2PROC_READDIR,
+ NFSV2PROC_NOOP,
+ NFSV2PROC_STATFS,
+ NFSV2PROC_NOOP,
+ NFSV2PROC_NOOP,
+ NFSV2PROC_NOOP,
+};
+
+/*
+ * Initialize sockets and congestion for a new NFS connection.
+ * We do not free the sockaddr if error.
+ * Which arguments are set to NULL indicate what kind of call it is.
+ * cred == NULL --> a call to connect to a pNFS DS
+ * nmp == NULL --> indicates an upcall to userland or a NFSv4.0 callback
+ */
+int
+newnfs_connect(struct nfsmount *nmp, struct nfssockreq *nrp,
+ struct ucred *cred, NFSPROC_T *p, int callback_retry_mult)
+{
+ int rcvreserve, sndreserve;
+ int pktscale, pktscalesav;
+ struct sockaddr *saddr;
+ struct ucred *origcred;
+ CLIENT *client;
+ struct netconfig *nconf;
+ struct socket *so;
+ int one = 1, retries, error = 0;
+ struct thread *td = curthread;
+ SVCXPRT *xprt;
+ struct timeval timo;
+
+ /*
+ * We need to establish the socket using the credentials of
+ * the mountpoint. Some parts of this process (such as
+ * sobind() and soconnect()) will use the curent thread's
+ * credential instead of the socket credential. To work
+ * around this, temporarily change the current thread's
+ * credential to that of the mountpoint.
+ *
+ * XXX: It would be better to explicitly pass the correct
+ * credential to sobind() and soconnect().
+ */
+ origcred = td->td_ucred;
+
+ /*
+ * Use the credential in nr_cred, if not NULL.
+ */
+ if (nrp->nr_cred != NULL)
+ td->td_ucred = nrp->nr_cred;
+ else
+ td->td_ucred = cred;
+ saddr = nrp->nr_nam;
+
+ if (saddr->sa_family == AF_INET)
+ if (nrp->nr_sotype == SOCK_DGRAM)
+ nconf = getnetconfigent("udp");
+ else
+ nconf = getnetconfigent("tcp");
+ else if (saddr->sa_family == AF_LOCAL)
+ nconf = getnetconfigent("local");
+ else
+ if (nrp->nr_sotype == SOCK_DGRAM)
+ nconf = getnetconfigent("udp6");
+ else
+ nconf = getnetconfigent("tcp6");
+
+ pktscale = nfs_bufpackets;
+ if (pktscale < 2)
+ pktscale = 2;
+ if (pktscale > 64)
+ pktscale = 64;
+ pktscalesav = pktscale;
+ /*
+ * soreserve() can fail if sb_max is too small, so shrink pktscale
+ * and try again if there is an error.
+ * Print a log message suggesting increasing sb_max.
+ * Creating a socket and doing this is necessary since, if the
+ * reservation sizes are too large and will make soreserve() fail,
+ * the connection will work until a large send is attempted and
+ * then it will loop in the krpc code.
+ */
+ so = NULL;
+ saddr = NFSSOCKADDR(nrp->nr_nam, struct sockaddr *);
+ error = socreate(saddr->sa_family, &so, nrp->nr_sotype,
+ nrp->nr_soproto, td->td_ucred, td);
+ if (error) {
+ td->td_ucred = origcred;
+ goto out;
+ }
+ do {
+ if (error != 0 && pktscale > 2) {
+ if (nmp != NULL && nrp->nr_sotype == SOCK_STREAM &&
+ pktscale == pktscalesav)
+ printf("Consider increasing kern.ipc.maxsockbuf\n");
+ pktscale--;
+ }
+ if (nrp->nr_sotype == SOCK_DGRAM) {
+ if (nmp != NULL) {
+ sndreserve = (NFS_MAXDGRAMDATA + NFS_MAXPKTHDR) *
+ pktscale;
+ rcvreserve = (NFS_MAXDGRAMDATA + NFS_MAXPKTHDR) *
+ pktscale;
+ } else {
+ sndreserve = rcvreserve = 1024 * pktscale;
+ }
+ } else {
+ if (nrp->nr_sotype != SOCK_STREAM)
+ panic("nfscon sotype");
+ if (nmp != NULL) {
+ sndreserve = (NFS_MAXBSIZE + NFS_MAXXDR +
+ sizeof (u_int32_t)) * pktscale;
+ rcvreserve = (NFS_MAXBSIZE + NFS_MAXXDR +
+ sizeof (u_int32_t)) * pktscale;
+ } else {
+ sndreserve = rcvreserve = 1024 * pktscale;
+ }
+ }
+ error = soreserve(so, sndreserve, rcvreserve);
+ if (error != 0 && nmp != NULL && nrp->nr_sotype == SOCK_STREAM &&
+ pktscale <= 2)
+ printf("Must increase kern.ipc.maxsockbuf or reduce"
+ " rsize, wsize\n");
+ } while (error != 0 && pktscale > 2);
+ soclose(so);
+ if (error) {
+ td->td_ucred = origcred;
+ goto out;
+ }
+
+ client = clnt_reconnect_create(nconf, saddr, nrp->nr_prog,
+ nrp->nr_vers, sndreserve, rcvreserve);
+ CLNT_CONTROL(client, CLSET_WAITCHAN, "nfsreq");
+ if (nmp != NULL) {
+ if ((nmp->nm_flag & NFSMNT_INT))
+ CLNT_CONTROL(client, CLSET_INTERRUPTIBLE, &one);
+ if ((nmp->nm_flag & NFSMNT_RESVPORT))
+ CLNT_CONTROL(client, CLSET_PRIVPORT, &one);
+ if (NFSHASSOFT(nmp)) {
+ if (nmp->nm_sotype == SOCK_DGRAM)
+ /*
+ * For UDP, the large timeout for a reconnect
+ * will be set to "nm_retry * nm_timeo / 2", so
+ * we only want to do 2 reconnect timeout
+ * retries.
+ */
+ retries = 2;
+ else
+ retries = nmp->nm_retry;
+ } else
+ retries = INT_MAX;
+ if (NFSHASNFSV4N(nmp)) {
+ if (cred != NULL) {
+ if (NFSHASSOFT(nmp)) {
+ /*
+ * This should be a DS mount.
+ * Use CLSET_TIMEOUT to set the timeout
+ * for connections to DSs instead of
+ * specifying a timeout on each RPC.
+ * This is done so that SO_SNDTIMEO
+ * is set on the TCP socket as well
+ * as specifying a time limit when
+ * waiting for an RPC reply. Useful
+ * if the send queue for the TCP
+ * connection has become constipated,
+ * due to a failed DS.
+ * The choice of lease_duration / 4 is
+ * fairly arbitrary, but seems to work
+ * ok, with a lower bound of 10sec.
+ */
+ timo.tv_sec = nfsrv_lease / 4;
+ if (timo.tv_sec < 10)
+ timo.tv_sec = 10;
+ timo.tv_usec = 0;
+ CLNT_CONTROL(client, CLSET_TIMEOUT,
+ &timo);
+ }
+ /*
+ * Make sure the nfscbd_pool doesn't get
+ * destroyed while doing this.
+ */
+ NFSD_LOCK();
+ if (nfs_numnfscbd > 0) {
+ nfs_numnfscbd++;
+ NFSD_UNLOCK();
+ xprt = svc_vc_create_backchannel(
+ nfscbd_pool);
+ CLNT_CONTROL(client, CLSET_BACKCHANNEL,
+ xprt);
+ NFSD_LOCK();
+ nfs_numnfscbd--;
+ if (nfs_numnfscbd == 0)
+ wakeup(&nfs_numnfscbd);
+ }
+ NFSD_UNLOCK();
+ } else {
+ /*
+ * cred == NULL for a DS connect.
+ * For connects to a DS, set a retry limit
+ * so that failed DSs will be detected.
+ * This is ok for NFSv4.1, since a DS does
+ * not maintain open/lock state and is the
+ * only case where using a "soft" mount is
+ * recommended for NFSv4.
+ * For mounts from the MDS to DS, this is done
+ * via mount options, but that is not the case
+ * here. The retry limit here can be adjusted
+ * via the sysctl vfs.nfs.dsretries.
+ * See the comment above w.r.t. timeout.
+ */
+ timo.tv_sec = nfsrv_lease / 4;
+ if (timo.tv_sec < 10)
+ timo.tv_sec = 10;
+ timo.tv_usec = 0;
+ CLNT_CONTROL(client, CLSET_TIMEOUT, &timo);
+ retries = nfs_dsretries;
+ }
+ }
+ } else {
+ /*
+ * Three cases:
+ * - Null RPC callback to client
+ * - Non-Null RPC callback to client, wait a little longer
+ * - upcalls to nfsuserd and gssd (clp == NULL)
+ */
+ if (callback_retry_mult == 0) {
+ retries = NFSV4_UPCALLRETRY;
+ CLNT_CONTROL(client, CLSET_PRIVPORT, &one);
+ } else {
+ retries = NFSV4_CALLBACKRETRY * callback_retry_mult;
+ }
+ }
+ CLNT_CONTROL(client, CLSET_RETRIES, &retries);
+
+ if (nmp != NULL) {
+ /*
+ * For UDP, there are 2 timeouts:
+ * - CLSET_RETRY_TIMEOUT sets the initial timeout for the timer
+ * that does a retransmit of an RPC request using the same
+ * socket and xid. This is what you normally want to do,
+ * since NFS servers depend on "same xid" for their
+ * Duplicate Request Cache.
+ * - timeout specified in CLNT_CALL_MBUF(), which specifies when
+ * retransmits on the same socket should fail and a fresh
+ * socket created. Each of these timeouts counts as one
+ * CLSET_RETRIES as set above.
+ * Set the initial retransmit timeout for UDP. This timeout
+ * doesn't exist for TCP and the following call just fails,
+ * which is ok.
+ */
+ timo.tv_sec = nmp->nm_timeo / NFS_HZ;
+ timo.tv_usec = (nmp->nm_timeo % NFS_HZ) * 1000000 / NFS_HZ;
+ CLNT_CONTROL(client, CLSET_RETRY_TIMEOUT, &timo);
+ }
+
+ mtx_lock(&nrp->nr_mtx);
+ if (nrp->nr_client != NULL) {
+ mtx_unlock(&nrp->nr_mtx);
+ /*
+ * Someone else already connected.
+ */
+ CLNT_RELEASE(client);
+ } else {
+ nrp->nr_client = client;
+ /*
+ * Protocols that do not require connections may be optionally
+ * left unconnected for servers that reply from a port other
+ * than NFS_PORT.
+ */
+ if (nmp == NULL || (nmp->nm_flag & NFSMNT_NOCONN) == 0) {
+ mtx_unlock(&nrp->nr_mtx);
+ CLNT_CONTROL(client, CLSET_CONNECT, &one);
+ } else
+ mtx_unlock(&nrp->nr_mtx);
+ }
+
+
+ /* Restore current thread's credentials. */
+ td->td_ucred = origcred;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * NFS disconnect. Clean up and unlink.
+ */
+void
+newnfs_disconnect(struct nfssockreq *nrp)
+{
+ CLIENT *client;
+
+ mtx_lock(&nrp->nr_mtx);
+ if (nrp->nr_client != NULL) {
+ client = nrp->nr_client;
+ nrp->nr_client = NULL;
+ mtx_unlock(&nrp->nr_mtx);
+ rpc_gss_secpurge_call(client);
+ CLNT_CLOSE(client);
+ CLNT_RELEASE(client);
+ } else {
+ mtx_unlock(&nrp->nr_mtx);
+ }
+}
+
+static AUTH *
+nfs_getauth(struct nfssockreq *nrp, int secflavour, char *clnt_principal,
+ char *srv_principal, gss_OID mech_oid, struct ucred *cred)
+{
+ rpc_gss_service_t svc;
+ AUTH *auth;
+
+ switch (secflavour) {
+ case RPCSEC_GSS_KRB5:
+ case RPCSEC_GSS_KRB5I:
+ case RPCSEC_GSS_KRB5P:
+ if (!mech_oid) {
+ if (!rpc_gss_mech_to_oid_call("kerberosv5", &mech_oid))
+ return (NULL);
+ }
+ if (secflavour == RPCSEC_GSS_KRB5)
+ svc = rpc_gss_svc_none;
+ else if (secflavour == RPCSEC_GSS_KRB5I)
+ svc = rpc_gss_svc_integrity;
+ else
+ svc = rpc_gss_svc_privacy;
+
+ if (clnt_principal == NULL)
+ auth = rpc_gss_secfind_call(nrp->nr_client, cred,
+ srv_principal, mech_oid, svc);
+ else {
+ auth = rpc_gss_seccreate_call(nrp->nr_client, cred,
+ clnt_principal, srv_principal, "kerberosv5",
+ svc, NULL, NULL, NULL);
+ return (auth);
+ }
+ if (auth != NULL)
+ return (auth);
+ /* fallthrough */
+ case AUTH_SYS:
+ default:
+ return (authunix_create(cred));
+
+ }
+}
+
+/*
+ * Callback from the RPC code to generate up/down notifications.
+ */
+
+struct nfs_feedback_arg {
+ struct nfsmount *nf_mount;
+ int nf_lastmsg; /* last tprintf */
+ int nf_tprintfmsg;
+ struct thread *nf_td;
+};
+
+static void
+nfs_feedback(int type, int proc, void *arg)
+{
+ struct nfs_feedback_arg *nf = (struct nfs_feedback_arg *) arg;
+ struct nfsmount *nmp = nf->nf_mount;
+ time_t now;
+
+ switch (type) {
+ case FEEDBACK_REXMIT2:
+ case FEEDBACK_RECONNECT:
+ now = NFSD_MONOSEC;
+ if (nf->nf_lastmsg + nmp->nm_tprintf_delay < now) {
+ nfs_down(nmp, nf->nf_td,
+ "not responding", 0, NFSSTA_TIMEO);
+ nf->nf_tprintfmsg = TRUE;
+ nf->nf_lastmsg = now;
+ }
+ break;
+
+ case FEEDBACK_OK:
+ nfs_up(nf->nf_mount, nf->nf_td,
+ "is alive again", NFSSTA_TIMEO, nf->nf_tprintfmsg);
+ break;
+ }
+}
+
+/*
+ * newnfs_request - goes something like this
+ * - does the rpc by calling the krpc layer
+ * - break down rpc header and return with nfs reply
+ * nb: always frees up nd_mreq mbuf list
+ */
+int
+newnfs_request(struct nfsrv_descript *nd, struct nfsmount *nmp,
+ struct nfsclient *clp, struct nfssockreq *nrp, vnode_t vp,
+ struct thread *td, struct ucred *cred, u_int32_t prog, u_int32_t vers,
+ u_char *retsum, int toplevel, u_int64_t *xidp, struct nfsclsession *dssep)
+{
+ uint32_t retseq, retval, slotseq, *tl;
+ time_t waituntil;
+ int i = 0, j = 0, opcnt, set_sigset = 0, slot;
+ int error = 0, usegssname = 0, secflavour = AUTH_SYS;
+ int freeslot, maxslot, reterr, slotpos, timeo;
+ u_int16_t procnum;
+ u_int trylater_delay = 1;
+ struct nfs_feedback_arg nf;
+ struct timeval timo;
+ AUTH *auth;
+ struct rpc_callextra ext;
+ enum clnt_stat stat;
+ struct nfsreq *rep = NULL;
+ char *srv_principal = NULL, *clnt_principal = NULL;
+ sigset_t oldset;
+ struct ucred *authcred;
+ struct nfsclsession *sep;
+ uint8_t sessionid[NFSX_V4SESSIONID];
+
+ sep = dssep;
+ if (xidp != NULL)
+ *xidp = 0;
+ /* Reject requests while attempting a forced unmount. */
+ if (nmp != NULL && NFSCL_FORCEDISM(nmp->nm_mountp)) {
+ m_freem(nd->nd_mreq);
+ return (ESTALE);
+ }
+
+ /*
+ * Set authcred, which is used to acquire RPC credentials to
+ * the cred argument, by default. The crhold() should not be
+ * necessary, but will ensure that some future code change
+ * doesn't result in the credential being free'd prematurely.
+ */
+ authcred = crhold(cred);
+
+ /* For client side interruptible mounts, mask off the signals. */
+ if (nmp != NULL && td != NULL && NFSHASINT(nmp)) {
+ newnfs_set_sigmask(td, &oldset);
+ set_sigset = 1;
+ }
+
+ /*
+ * XXX if not already connected call nfs_connect now. Longer
+ * term, change nfs_mount to call nfs_connect unconditionally
+ * and let clnt_reconnect_create handle reconnects.
+ */
+ if (nrp->nr_client == NULL)
+ newnfs_connect(nmp, nrp, cred, td, 0);
+
+ /*
+ * For a client side mount, nmp is != NULL and clp == NULL. For
+ * server calls (callbacks or upcalls), nmp == NULL.
+ */
+ if (clp != NULL) {
+ NFSLOCKSTATE();
+ if ((clp->lc_flags & LCL_GSS) && nfsrv_gsscallbackson) {
+ secflavour = RPCSEC_GSS_KRB5;
+ if (nd->nd_procnum != NFSPROC_NULL) {
+ if (clp->lc_flags & LCL_GSSINTEGRITY)
+ secflavour = RPCSEC_GSS_KRB5I;
+ else if (clp->lc_flags & LCL_GSSPRIVACY)
+ secflavour = RPCSEC_GSS_KRB5P;
+ }
+ }
+ NFSUNLOCKSTATE();
+ } else if (nmp != NULL && NFSHASKERB(nmp) &&
+ nd->nd_procnum != NFSPROC_NULL) {
+ if (NFSHASALLGSSNAME(nmp) && nmp->nm_krbnamelen > 0)
+ nd->nd_flag |= ND_USEGSSNAME;
+ if ((nd->nd_flag & ND_USEGSSNAME) != 0) {
+ /*
+ * If there is a client side host based credential,
+ * use that, otherwise use the system uid, if set.
+ * The system uid is in the nmp->nm_sockreq.nr_cred
+ * credentials.
+ */
+ if (nmp->nm_krbnamelen > 0) {
+ usegssname = 1;
+ clnt_principal = nmp->nm_krbname;
+ } else if (nmp->nm_uid != (uid_t)-1) {
+ KASSERT(nmp->nm_sockreq.nr_cred != NULL,
+ ("newnfs_request: NULL nr_cred"));
+ crfree(authcred);
+ authcred = crhold(nmp->nm_sockreq.nr_cred);
+ }
+ } else if (nmp->nm_krbnamelen == 0 &&
+ nmp->nm_uid != (uid_t)-1 && cred->cr_uid == (uid_t)0) {
+ /*
+ * If there is no host based principal name and
+ * the system uid is set and this is root, use the
+ * system uid, since root won't have user
+ * credentials in a credentials cache file.
+ * The system uid is in the nmp->nm_sockreq.nr_cred
+ * credentials.
+ */
+ KASSERT(nmp->nm_sockreq.nr_cred != NULL,
+ ("newnfs_request: NULL nr_cred"));
+ crfree(authcred);
+ authcred = crhold(nmp->nm_sockreq.nr_cred);
+ }
+ if (NFSHASINTEGRITY(nmp))
+ secflavour = RPCSEC_GSS_KRB5I;
+ else if (NFSHASPRIVACY(nmp))
+ secflavour = RPCSEC_GSS_KRB5P;
+ else
+ secflavour = RPCSEC_GSS_KRB5;
+ srv_principal = NFSMNT_SRVKRBNAME(nmp);
+ } else if (nmp != NULL && !NFSHASKERB(nmp) &&
+ nd->nd_procnum != NFSPROC_NULL &&
+ (nd->nd_flag & ND_USEGSSNAME) != 0) {
+ /*
+ * Use the uid that did the mount when the RPC is doing
+ * NFSv4 system operations, as indicated by the
+ * ND_USEGSSNAME flag, for the AUTH_SYS case.
+ * The credentials in nm_sockreq.nr_cred were used for the
+ * mount.
+ */
+ KASSERT(nmp->nm_sockreq.nr_cred != NULL,
+ ("newnfs_request: NULL nr_cred"));
+ crfree(authcred);
+ authcred = crhold(nmp->nm_sockreq.nr_cred);
+ }
+
+ if (nmp != NULL) {
+ bzero(&nf, sizeof(struct nfs_feedback_arg));
+ nf.nf_mount = nmp;
+ nf.nf_td = td;
+ nf.nf_lastmsg = NFSD_MONOSEC -
+ ((nmp->nm_tprintf_delay)-(nmp->nm_tprintf_initial_delay));
+ }
+
+ if (nd->nd_procnum == NFSPROC_NULL)
+ auth = authnone_create();
+ else if (usegssname) {
+ /*
+ * For this case, the authenticator is held in the
+ * nfssockreq structure, so don't release the reference count
+ * held on it. --> Don't AUTH_DESTROY() it in this function.
+ */
+ if (nrp->nr_auth == NULL)
+ nrp->nr_auth = nfs_getauth(nrp, secflavour,
+ clnt_principal, srv_principal, NULL, authcred);
+ else
+ rpc_gss_refresh_auth_call(nrp->nr_auth);
+ auth = nrp->nr_auth;
+ } else
+ auth = nfs_getauth(nrp, secflavour, NULL,
+ srv_principal, NULL, authcred);
+ crfree(authcred);
+ if (auth == NULL) {
+ m_freem(nd->nd_mreq);
+ if (set_sigset)
+ newnfs_restore_sigmask(td, &oldset);
+ return (EACCES);
+ }
+ bzero(&ext, sizeof(ext));
+ ext.rc_auth = auth;
+ if (nmp != NULL) {
+ ext.rc_feedback = nfs_feedback;
+ ext.rc_feedback_arg = &nf;
+ }
+
+ procnum = nd->nd_procnum;
+ if ((nd->nd_flag & ND_NFSV4) &&
+ nd->nd_procnum != NFSPROC_NULL &&
+ nd->nd_procnum != NFSV4PROC_CBCOMPOUND)
+ procnum = NFSV4PROC_COMPOUND;
+
+ if (nmp != NULL) {
+ NFSINCRGLOBAL(nfsstatsv1.rpcrequests);
+
+ /* Map the procnum to the old NFSv2 one, as required. */
+ if ((nd->nd_flag & ND_NFSV2) != 0) {
+ if (nd->nd_procnum < NFS_V3NPROCS)
+ procnum = nfsv2_procid[nd->nd_procnum];
+ else
+ procnum = NFSV2PROC_NOOP;
+ }
+
+ /*
+ * Now only used for the R_DONTRECOVER case, but until that is
+ * supported within the krpc code, I need to keep a queue of
+ * outstanding RPCs for nfsv4 client requests.
+ */
+ if ((nd->nd_flag & ND_NFSV4) && procnum == NFSV4PROC_COMPOUND)
+ rep = malloc(sizeof(struct nfsreq),
+ M_NFSDREQ, M_WAITOK);
+#ifdef KDTRACE_HOOKS
+ if (dtrace_nfscl_nfs234_start_probe != NULL) {
+ uint32_t probe_id;
+ int probe_procnum;
+
+ if (nd->nd_flag & ND_NFSV4) {
+ probe_id =
+ nfscl_nfs4_start_probes[nd->nd_procnum];
+ probe_procnum = nd->nd_procnum;
+ } else if (nd->nd_flag & ND_NFSV3) {
+ probe_id = nfscl_nfs3_start_probes[procnum];
+ probe_procnum = procnum;
+ } else {
+ probe_id =
+ nfscl_nfs2_start_probes[nd->nd_procnum];
+ probe_procnum = procnum;
+ }
+ if (probe_id != 0)
+ (dtrace_nfscl_nfs234_start_probe)
+ (probe_id, vp, nd->nd_mreq, cred,
+ probe_procnum);
+ }
+#endif
+ }
+ freeslot = -1; /* Set to slot that needs to be free'd */
+tryagain:
+ slot = -1; /* Slot that needs a sequence# increment. */
+ /*
+ * This timeout specifies when a new socket should be created,
+ * along with new xid values. For UDP, this should be done
+ * infrequently, since retransmits of RPC requests should normally
+ * use the same xid.
+ */
+ if (nmp == NULL) {
+ timo.tv_usec = 0;
+ if (clp == NULL)
+ timo.tv_sec = NFSV4_UPCALLTIMEO;
+ else
+ timo.tv_sec = NFSV4_CALLBACKTIMEO;
+ } else {
+ if (nrp->nr_sotype != SOCK_DGRAM) {
+ timo.tv_usec = 0;
+ if ((nmp->nm_flag & NFSMNT_NFSV4))
+ timo.tv_sec = INT_MAX;
+ else
+ timo.tv_sec = NFS_TCPTIMEO;
+ } else {
+ if (NFSHASSOFT(nmp)) {
+ /*
+ * CLSET_RETRIES is set to 2, so this should be
+ * half of the total timeout required.
+ */
+ timeo = nmp->nm_retry * nmp->nm_timeo / 2;
+ if (timeo < 1)
+ timeo = 1;
+ timo.tv_sec = timeo / NFS_HZ;
+ timo.tv_usec = (timeo % NFS_HZ) * 1000000 /
+ NFS_HZ;
+ } else {
+ /* For UDP hard mounts, use a large value. */
+ timo.tv_sec = NFS_MAXTIMEO / NFS_HZ;
+ timo.tv_usec = 0;
+ }
+ }
+
+ if (rep != NULL) {
+ rep->r_flags = 0;
+ rep->r_nmp = nmp;
+ /*
+ * Chain request into list of outstanding requests.
+ */
+ NFSLOCKREQ();
+ TAILQ_INSERT_TAIL(&nfsd_reqq, rep, r_chain);
+ NFSUNLOCKREQ();
+ }
+ }
+
+ nd->nd_mrep = NULL;
+ if (clp != NULL && sep != NULL)
+ stat = clnt_bck_call(nrp->nr_client, &ext, procnum,
+ nd->nd_mreq, &nd->nd_mrep, timo, sep->nfsess_xprt);
+ else
+ stat = CLNT_CALL_MBUF(nrp->nr_client, &ext, procnum,
+ nd->nd_mreq, &nd->nd_mrep, timo);
+ NFSCL_DEBUG(2, "clnt call=%d\n", stat);
+
+ if (rep != NULL) {
+ /*
+ * RPC done, unlink the request.
+ */
+ NFSLOCKREQ();
+ TAILQ_REMOVE(&nfsd_reqq, rep, r_chain);
+ NFSUNLOCKREQ();
+ }
+
+ /*
+ * If there was a successful reply and a tprintf msg.
+ * tprintf a response.
+ */
+ if (stat == RPC_SUCCESS) {
+ error = 0;
+ } else if (stat == RPC_TIMEDOUT) {
+ NFSINCRGLOBAL(nfsstatsv1.rpctimeouts);
+ error = ETIMEDOUT;
+ } else if (stat == RPC_VERSMISMATCH) {
+ NFSINCRGLOBAL(nfsstatsv1.rpcinvalid);
+ error = EOPNOTSUPP;
+ } else if (stat == RPC_PROGVERSMISMATCH) {
+ NFSINCRGLOBAL(nfsstatsv1.rpcinvalid);
+ error = EPROTONOSUPPORT;
+ } else if (stat == RPC_INTR) {
+ error = EINTR;
+ } else if (stat == RPC_CANTSEND || stat == RPC_CANTRECV ||
+ stat == RPC_SYSTEMERROR) {
+ /* Check for a session slot that needs to be free'd. */
+ if ((nd->nd_flag & (ND_NFSV41 | ND_HASSLOTID)) ==
+ (ND_NFSV41 | ND_HASSLOTID) && nmp != NULL &&
+ nd->nd_procnum != NFSPROC_NULL) {
+ /*
+ * This should only occur when either the MDS or
+ * a client has an RPC against a DS fail.
+ * This happens because these cases use "soft"
+ * connections that can time out and fail.
+ * The slot used for this RPC is now in a
+ * non-deterministic state, but if the slot isn't
+ * free'd, threads can get stuck waiting for a slot.
+ */
+ if (sep == NULL)
+ sep = nfsmnt_mdssession(nmp);
+ /*
+ * Bump the sequence# out of range, so that reuse of
+ * this slot will result in an NFSERR_SEQMISORDERED
+ * error and not a bogus cached RPC reply.
+ */
+ mtx_lock(&sep->nfsess_mtx);
+ sep->nfsess_slotseq[nd->nd_slotid] += 10;
+ mtx_unlock(&sep->nfsess_mtx);
+ /* And free the slot. */
+ nfsv4_freeslot(sep, nd->nd_slotid);
+ }
+ NFSINCRGLOBAL(nfsstatsv1.rpcinvalid);
+ error = ENXIO;
+ } else {
+ NFSINCRGLOBAL(nfsstatsv1.rpcinvalid);
+ error = EACCES;
+ }
+ if (error) {
+ m_freem(nd->nd_mreq);
+ if (usegssname == 0)
+ AUTH_DESTROY(auth);
+ if (rep != NULL)
+ free(rep, M_NFSDREQ);
+ if (set_sigset)
+ newnfs_restore_sigmask(td, &oldset);
+ return (error);
+ }
+
+ KASSERT(nd->nd_mrep != NULL, ("mrep shouldn't be NULL if no error\n"));
+
+ /*
+ * Search for any mbufs that are not a multiple of 4 bytes long
+ * or with m_data not longword aligned.
+ * These could cause pointer alignment problems, so copy them to
+ * well aligned mbufs.
+ */
+ newnfs_realign(&nd->nd_mrep, M_WAITOK);
+ nd->nd_md = nd->nd_mrep;
+ nd->nd_dpos = NFSMTOD(nd->nd_md, caddr_t);
+ nd->nd_repstat = 0;
+ if (nd->nd_procnum != NFSPROC_NULL &&
+ nd->nd_procnum != NFSV4PROC_CBNULL) {
+ /* If sep == NULL, set it to the default in nmp. */
+ if (sep == NULL && nmp != NULL)
+ sep = nfsmnt_mdssession(nmp);
+ /*
+ * and now the actual NFS xdr.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ nd->nd_repstat = fxdr_unsigned(u_int32_t, *tl);
+ if (nd->nd_repstat >= 10000)
+ NFSCL_DEBUG(1, "proc=%d reps=%d\n", (int)nd->nd_procnum,
+ (int)nd->nd_repstat);
+
+ /*
+ * Get rid of the tag, return count and SEQUENCE result for
+ * NFSv4.
+ */
+ if ((nd->nd_flag & ND_NFSV4) != 0 && nd->nd_repstat !=
+ NFSERR_MINORVERMISMATCH) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl);
+ error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
+ if (error)
+ goto nfsmout;
+ NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ opcnt = fxdr_unsigned(int, *tl++);
+ i = fxdr_unsigned(int, *tl++);
+ j = fxdr_unsigned(int, *tl);
+ if (j >= 10000)
+ NFSCL_DEBUG(1, "fop=%d fst=%d\n", i, j);
+ /*
+ * If the first op is Sequence, free up the slot.
+ */
+ if ((nmp != NULL && i == NFSV4OP_SEQUENCE && j != 0) ||
+ (clp != NULL && i == NFSV4OP_CBSEQUENCE && j != 0))
+ NFSCL_DEBUG(1, "failed seq=%d\n", j);
+ if (((nmp != NULL && i == NFSV4OP_SEQUENCE && j == 0) ||
+ (clp != NULL && i == NFSV4OP_CBSEQUENCE &&
+ j == 0)) && sep != NULL) {
+ if (i == NFSV4OP_SEQUENCE)
+ NFSM_DISSECT(tl, uint32_t *,
+ NFSX_V4SESSIONID +
+ 5 * NFSX_UNSIGNED);
+ else
+ NFSM_DISSECT(tl, uint32_t *,
+ NFSX_V4SESSIONID +
+ 4 * NFSX_UNSIGNED);
+ mtx_lock(&sep->nfsess_mtx);
+ if (bcmp(tl, sep->nfsess_sessionid,
+ NFSX_V4SESSIONID) == 0) {
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ retseq = fxdr_unsigned(uint32_t, *tl++);
+ slot = fxdr_unsigned(int, *tl++);
+ freeslot = slot;
+ if (retseq != sep->nfsess_slotseq[slot])
+ printf("retseq diff 0x%x\n",
+ retseq);
+ retval = fxdr_unsigned(uint32_t, *++tl);
+ if ((retval + 1) < sep->nfsess_foreslots
+ )
+ sep->nfsess_foreslots = (retval
+ + 1);
+ else if ((retval + 1) >
+ sep->nfsess_foreslots)
+ sep->nfsess_foreslots = (retval
+ < 64) ? (retval + 1) : 64;
+ }
+ mtx_unlock(&sep->nfsess_mtx);
+
+ /* Grab the op and status for the next one. */
+ if (opcnt > 1) {
+ NFSM_DISSECT(tl, uint32_t *,
+ 2 * NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl++);
+ j = fxdr_unsigned(int, *tl);
+ }
+ }
+ }
+ if (nd->nd_repstat != 0) {
+ if (nd->nd_repstat == NFSERR_BADSESSION &&
+ nmp != NULL && dssep == NULL &&
+ (nd->nd_flag & ND_NFSV41) != 0) {
+ /*
+ * If this is a client side MDS RPC, mark
+ * the MDS session defunct and initiate
+ * recovery, as required.
+ * The nfsess_defunct field is protected by
+ * the NFSLOCKMNT()/nm_mtx lock and not the
+ * nfsess_mtx lock to simplify its handling,
+ * for the MDS session. This lock is also
+ * sufficient for nfsess_sessionid, since it
+ * never changes in the structure.
+ */
+ NFSCL_DEBUG(1, "Got badsession\n");
+ NFSLOCKCLSTATE();
+ NFSLOCKMNT(nmp);
+ sep = NFSMNT_MDSSESSION(nmp);
+ if (bcmp(sep->nfsess_sessionid, nd->nd_sequence,
+ NFSX_V4SESSIONID) == 0) {
+ /* Initiate recovery. */
+ sep->nfsess_defunct = 1;
+ NFSCL_DEBUG(1, "Marked defunct\n");
+ if (nmp->nm_clp != NULL) {
+ nmp->nm_clp->nfsc_flags |=
+ NFSCLFLAGS_RECOVER;
+ wakeup(nmp->nm_clp);
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ /*
+ * Sleep for up to 1sec waiting for a new
+ * session.
+ */
+ mtx_sleep(&nmp->nm_sess, &nmp->nm_mtx, PZERO,
+ "nfsbadsess", hz);
+ /*
+ * Get the session again, in case a new one
+ * has been created during the sleep.
+ */
+ sep = NFSMNT_MDSSESSION(nmp);
+ NFSUNLOCKMNT(nmp);
+ if ((nd->nd_flag & ND_LOOPBADSESS) != 0) {
+ reterr = nfsv4_sequencelookup(nmp, sep,
+ &slotpos, &maxslot, &slotseq,
+ sessionid);
+ if (reterr == 0) {
+ /* Fill in new session info. */
+ NFSCL_DEBUG(1,
+ "Filling in new sequence\n");
+ tl = nd->nd_sequence;
+ bcopy(sessionid, tl,
+ NFSX_V4SESSIONID);
+ tl += NFSX_V4SESSIONID /
+ NFSX_UNSIGNED;
+ *tl++ = txdr_unsigned(slotseq);
+ *tl++ = txdr_unsigned(slotpos);
+ *tl = txdr_unsigned(maxslot);
+ }
+ if (reterr == NFSERR_BADSESSION ||
+ reterr == 0) {
+ NFSCL_DEBUG(1,
+ "Badsession looping\n");
+ m_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ goto tryagain;
+ }
+ nd->nd_repstat = reterr;
+ NFSCL_DEBUG(1, "Got err=%d\n", reterr);
+ }
+ }
+ /*
+ * When clp != NULL, it is a callback and all
+ * callback operations can be retried for NFSERR_DELAY.
+ */
+ if (((nd->nd_repstat == NFSERR_DELAY ||
+ nd->nd_repstat == NFSERR_GRACE) &&
+ (nd->nd_flag & ND_NFSV4) && (clp != NULL ||
+ (nd->nd_procnum != NFSPROC_DELEGRETURN &&
+ nd->nd_procnum != NFSPROC_SETATTR &&
+ nd->nd_procnum != NFSPROC_READ &&
+ nd->nd_procnum != NFSPROC_READDS &&
+ nd->nd_procnum != NFSPROC_WRITE &&
+ nd->nd_procnum != NFSPROC_WRITEDS &&
+ nd->nd_procnum != NFSPROC_OPEN &&
+ nd->nd_procnum != NFSPROC_CREATE &&
+ nd->nd_procnum != NFSPROC_OPENCONFIRM &&
+ nd->nd_procnum != NFSPROC_OPENDOWNGRADE &&
+ nd->nd_procnum != NFSPROC_CLOSE &&
+ nd->nd_procnum != NFSPROC_LOCK &&
+ nd->nd_procnum != NFSPROC_LOCKU))) ||
+ (nd->nd_repstat == NFSERR_DELAY &&
+ (nd->nd_flag & ND_NFSV4) == 0) ||
+ nd->nd_repstat == NFSERR_RESOURCE) {
+ if (trylater_delay > NFS_TRYLATERDEL)
+ trylater_delay = NFS_TRYLATERDEL;
+ waituntil = NFSD_MONOSEC + trylater_delay;
+ while (NFSD_MONOSEC < waituntil)
+ (void) nfs_catnap(PZERO, 0, "nfstry");
+ trylater_delay *= 2;
+ if (slot != -1) {
+ mtx_lock(&sep->nfsess_mtx);
+ sep->nfsess_slotseq[slot]++;
+ *nd->nd_slotseq = txdr_unsigned(
+ sep->nfsess_slotseq[slot]);
+ mtx_unlock(&sep->nfsess_mtx);
+ }
+ m_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ goto tryagain;
+ }
+
+ /*
+ * If the File Handle was stale, invalidate the
+ * lookup cache, just in case.
+ * (vp != NULL implies a client side call)
+ */
+ if (nd->nd_repstat == ESTALE && vp != NULL) {
+ cache_purge(vp);
+ if (ncl_call_invalcaches != NULL)
+ (*ncl_call_invalcaches)(vp);
+ }
+ }
+ if ((nd->nd_flag & ND_NFSV4) != 0) {
+ /* Free the slot, as required. */
+ if (freeslot != -1)
+ nfsv4_freeslot(sep, freeslot);
+ /*
+ * If this op is Putfh, throw its results away.
+ */
+ if (j >= 10000)
+ NFSCL_DEBUG(1, "nop=%d nst=%d\n", i, j);
+ if (nmp != NULL && i == NFSV4OP_PUTFH && j == 0) {
+ NFSM_DISSECT(tl,u_int32_t *,2 * NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl++);
+ j = fxdr_unsigned(int, *tl);
+ if (j >= 10000)
+ NFSCL_DEBUG(1, "n2op=%d n2st=%d\n", i,
+ j);
+ /*
+ * All Compounds that do an Op that must
+ * be in sequence consist of NFSV4OP_PUTFH
+ * followed by one of these. As such, we
+ * can determine if the seqid# should be
+ * incremented, here.
+ */
+ if ((i == NFSV4OP_OPEN ||
+ i == NFSV4OP_OPENCONFIRM ||
+ i == NFSV4OP_OPENDOWNGRADE ||
+ i == NFSV4OP_CLOSE ||
+ i == NFSV4OP_LOCK ||
+ i == NFSV4OP_LOCKU) &&
+ (j == 0 ||
+ (j != NFSERR_STALECLIENTID &&
+ j != NFSERR_STALESTATEID &&
+ j != NFSERR_BADSTATEID &&
+ j != NFSERR_BADSEQID &&
+ j != NFSERR_BADXDR &&
+ j != NFSERR_RESOURCE &&
+ j != NFSERR_NOFILEHANDLE)))
+ nd->nd_flag |= ND_INCRSEQID;
+ }
+ /*
+ * If this op's status is non-zero, mark
+ * that there is no more data to process.
+ * The exception is Setattr, which always has xdr
+ * when it has failed.
+ */
+ if (j != 0 && i != NFSV4OP_SETATTR)
+ nd->nd_flag |= ND_NOMOREDATA;
+
+ /*
+ * If R_DONTRECOVER is set, replace the stale error
+ * reply, so that recovery isn't initiated.
+ */
+ if ((nd->nd_repstat == NFSERR_STALECLIENTID ||
+ nd->nd_repstat == NFSERR_BADSESSION ||
+ nd->nd_repstat == NFSERR_STALESTATEID) &&
+ rep != NULL && (rep->r_flags & R_DONTRECOVER))
+ nd->nd_repstat = NFSERR_STALEDONTRECOVER;
+ }
+ }
+
+#ifdef KDTRACE_HOOKS
+ if (nmp != NULL && dtrace_nfscl_nfs234_done_probe != NULL) {
+ uint32_t probe_id;
+ int probe_procnum;
+
+ if (nd->nd_flag & ND_NFSV4) {
+ probe_id = nfscl_nfs4_done_probes[nd->nd_procnum];
+ probe_procnum = nd->nd_procnum;
+ } else if (nd->nd_flag & ND_NFSV3) {
+ probe_id = nfscl_nfs3_done_probes[procnum];
+ probe_procnum = procnum;
+ } else {
+ probe_id = nfscl_nfs2_done_probes[nd->nd_procnum];
+ probe_procnum = procnum;
+ }
+ if (probe_id != 0)
+ (dtrace_nfscl_nfs234_done_probe)(probe_id, vp,
+ nd->nd_mreq, cred, probe_procnum, 0);
+ }
+#endif
+
+ m_freem(nd->nd_mreq);
+ if (usegssname == 0)
+ AUTH_DESTROY(auth);
+ if (rep != NULL)
+ free(rep, M_NFSDREQ);
+ if (set_sigset)
+ newnfs_restore_sigmask(td, &oldset);
+ return (0);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ mbuf_freem(nd->nd_mreq);
+ if (usegssname == 0)
+ AUTH_DESTROY(auth);
+ if (rep != NULL)
+ free(rep, M_NFSDREQ);
+ if (set_sigset)
+ newnfs_restore_sigmask(td, &oldset);
+ return (error);
+}
+
+/*
+ * Mark all of an nfs mount's outstanding requests with R_SOFTTERM and
+ * wait for all requests to complete. This is used by forced unmounts
+ * to terminate any outstanding RPCs.
+ */
+int
+newnfs_nmcancelreqs(struct nfsmount *nmp)
+{
+ struct nfsclds *dsp;
+ struct __rpc_client *cl;
+
+ if (nmp->nm_sockreq.nr_client != NULL)
+ CLNT_CLOSE(nmp->nm_sockreq.nr_client);
+lookformore:
+ NFSLOCKMNT(nmp);
+ TAILQ_FOREACH(dsp, &nmp->nm_sess, nfsclds_list) {
+ NFSLOCKDS(dsp);
+ if (dsp != TAILQ_FIRST(&nmp->nm_sess) &&
+ (dsp->nfsclds_flags & NFSCLDS_CLOSED) == 0 &&
+ dsp->nfsclds_sockp != NULL &&
+ dsp->nfsclds_sockp->nr_client != NULL) {
+ dsp->nfsclds_flags |= NFSCLDS_CLOSED;
+ cl = dsp->nfsclds_sockp->nr_client;
+ NFSUNLOCKDS(dsp);
+ NFSUNLOCKMNT(nmp);
+ CLNT_CLOSE(cl);
+ goto lookformore;
+ }
+ NFSUNLOCKDS(dsp);
+ }
+ NFSUNLOCKMNT(nmp);
+ return (0);
+}
+
+/*
+ * Any signal that can interrupt an NFS operation in an intr mount
+ * should be added to this set. SIGSTOP and SIGKILL cannot be masked.
+ */
+int newnfs_sig_set[] = {
+ SIGINT,
+ SIGTERM,
+ SIGHUP,
+ SIGKILL,
+ SIGQUIT
+};
+
+/*
+ * Check to see if one of the signals in our subset is pending on
+ * the process (in an intr mount).
+ */
+static int
+nfs_sig_pending(sigset_t set)
+{
+ int i;
+
+ for (i = 0 ; i < nitems(newnfs_sig_set); i++)
+ if (SIGISMEMBER(set, newnfs_sig_set[i]))
+ return (1);
+ return (0);
+}
+
+/*
+ * The set/restore sigmask functions are used to (temporarily) overwrite
+ * the thread td_sigmask during an RPC call (for example). These are also
+ * used in other places in the NFS client that might tsleep().
+ */
+void
+newnfs_set_sigmask(struct thread *td, sigset_t *oldset)
+{
+ sigset_t newset;
+ int i;
+ struct proc *p;
+
+ SIGFILLSET(newset);
+ if (td == NULL)
+ td = curthread; /* XXX */
+ p = td->td_proc;
+ /* Remove the NFS set of signals from newset */
+ PROC_LOCK(p);
+ mtx_lock(&p->p_sigacts->ps_mtx);
+ for (i = 0 ; i < nitems(newnfs_sig_set); i++) {
+ /*
+ * But make sure we leave the ones already masked
+ * by the process, ie. remove the signal from the
+ * temporary signalmask only if it wasn't already
+ * in p_sigmask.
+ */
+ if (!SIGISMEMBER(td->td_sigmask, newnfs_sig_set[i]) &&
+ !SIGISMEMBER(p->p_sigacts->ps_sigignore, newnfs_sig_set[i]))
+ SIGDELSET(newset, newnfs_sig_set[i]);
+ }
+ mtx_unlock(&p->p_sigacts->ps_mtx);
+ kern_sigprocmask(td, SIG_SETMASK, &newset, oldset,
+ SIGPROCMASK_PROC_LOCKED);
+ PROC_UNLOCK(p);
+}
+
+void
+newnfs_restore_sigmask(struct thread *td, sigset_t *set)
+{
+ if (td == NULL)
+ td = curthread; /* XXX */
+ kern_sigprocmask(td, SIG_SETMASK, set, NULL, 0);
+}
+
+/*
+ * NFS wrapper to msleep(), that shoves a new p_sigmask and restores the
+ * old one after msleep() returns.
+ */
+int
+newnfs_msleep(struct thread *td, void *ident, struct mtx *mtx, int priority, char *wmesg, int timo)
+{
+ sigset_t oldset;
+ int error;
+
+ if ((priority & PCATCH) == 0)
+ return msleep(ident, mtx, priority, wmesg, timo);
+ if (td == NULL)
+ td = curthread; /* XXX */
+ newnfs_set_sigmask(td, &oldset);
+ error = msleep(ident, mtx, priority, wmesg, timo);
+ newnfs_restore_sigmask(td, &oldset);
+ return (error);
+}
+
+/*
+ * Test for a termination condition pending on the process.
+ * This is used for NFSMNT_INT mounts.
+ */
+int
+newnfs_sigintr(struct nfsmount *nmp, struct thread *td)
+{
+ struct proc *p;
+ sigset_t tmpset;
+
+ /* Terminate all requests while attempting a forced unmount. */
+ if (NFSCL_FORCEDISM(nmp->nm_mountp))
+ return (EIO);
+ if (!(nmp->nm_flag & NFSMNT_INT))
+ return (0);
+ if (td == NULL)
+ return (0);
+ p = td->td_proc;
+ PROC_LOCK(p);
+ tmpset = p->p_siglist;
+ SIGSETOR(tmpset, td->td_siglist);
+ SIGSETNAND(tmpset, td->td_sigmask);
+ mtx_lock(&p->p_sigacts->ps_mtx);
+ SIGSETNAND(tmpset, p->p_sigacts->ps_sigignore);
+ mtx_unlock(&p->p_sigacts->ps_mtx);
+ if ((SIGNOTEMPTY(p->p_siglist) || SIGNOTEMPTY(td->td_siglist))
+ && nfs_sig_pending(tmpset)) {
+ PROC_UNLOCK(p);
+ return (EINTR);
+ }
+ PROC_UNLOCK(p);
+ return (0);
+}
+
+static int
+nfs_msg(struct thread *td, const char *server, const char *msg, int error)
+{
+ struct proc *p;
+
+ p = td ? td->td_proc : NULL;
+ if (error) {
+ tprintf(p, LOG_INFO, "nfs server %s: %s, error %d\n",
+ server, msg, error);
+ } else {
+ tprintf(p, LOG_INFO, "nfs server %s: %s\n", server, msg);
+ }
+ return (0);
+}
+
+static void
+nfs_down(struct nfsmount *nmp, struct thread *td, const char *msg,
+ int error, int flags)
+{
+ if (nmp == NULL)
+ return;
+ mtx_lock(&nmp->nm_mtx);
+ if ((flags & NFSSTA_TIMEO) && !(nmp->nm_state & NFSSTA_TIMEO)) {
+ nmp->nm_state |= NFSSTA_TIMEO;
+ mtx_unlock(&nmp->nm_mtx);
+ vfs_event_signal(&nmp->nm_mountp->mnt_stat.f_fsid,
+ VQ_NOTRESP, 0);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+ mtx_lock(&nmp->nm_mtx);
+ if ((flags & NFSSTA_LOCKTIMEO) && !(nmp->nm_state & NFSSTA_LOCKTIMEO)) {
+ nmp->nm_state |= NFSSTA_LOCKTIMEO;
+ mtx_unlock(&nmp->nm_mtx);
+ vfs_event_signal(&nmp->nm_mountp->mnt_stat.f_fsid,
+ VQ_NOTRESPLOCK, 0);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+ nfs_msg(td, nmp->nm_mountp->mnt_stat.f_mntfromname, msg, error);
+}
+
+static void
+nfs_up(struct nfsmount *nmp, struct thread *td, const char *msg,
+ int flags, int tprintfmsg)
+{
+ if (nmp == NULL)
+ return;
+ if (tprintfmsg) {
+ nfs_msg(td, nmp->nm_mountp->mnt_stat.f_mntfromname, msg, 0);
+ }
+
+ mtx_lock(&nmp->nm_mtx);
+ if ((flags & NFSSTA_TIMEO) && (nmp->nm_state & NFSSTA_TIMEO)) {
+ nmp->nm_state &= ~NFSSTA_TIMEO;
+ mtx_unlock(&nmp->nm_mtx);
+ vfs_event_signal(&nmp->nm_mountp->mnt_stat.f_fsid,
+ VQ_NOTRESP, 1);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+
+ mtx_lock(&nmp->nm_mtx);
+ if ((flags & NFSSTA_LOCKTIMEO) && (nmp->nm_state & NFSSTA_LOCKTIMEO)) {
+ nmp->nm_state &= ~NFSSTA_LOCKTIMEO;
+ mtx_unlock(&nmp->nm_mtx);
+ vfs_event_signal(&nmp->nm_mountp->mnt_stat.f_fsid,
+ VQ_NOTRESPLOCK, 1);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+}
+
diff --git a/freebsd/sys/fs/nfs/nfs_commonport.c b/freebsd/sys/fs/nfs/nfs_commonport.c
new file mode 100644
index 0000000..1a1e64c
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs_commonport.c
@@ -0,0 +1,819 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Functions that need to be different for different versions of BSD
+ * kernel should be kept here, along with any global storage specific
+ * to this BSD variant.
+ */
+#include <fs/nfs/nfsport.h>
+#include <sys/smp.h>
+#include <sys/sysctl.h>
+#include <sys/taskqueue.h>
+#include <rpc/rpc_com.h>
+#include <vm/vm.h>
+#include <vm/vm_object.h>
+#include <vm/vm_page.h>
+#include <vm/vm_param.h>
+#include <vm/vm_map.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_extern.h>
+#include <vm/uma.h>
+
+extern int nfscl_ticks;
+extern nfsuserd_state nfsrv_nfsuserd;
+extern struct nfssockreq nfsrv_nfsuserdsock;
+extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *,
+ struct thread *);
+extern int nfsrv_useacl;
+struct mount nfsv4root_mnt;
+int newnfs_numnfsd = 0;
+struct nfsstatsv1 nfsstatsv1;
+int nfs_numnfscbd = 0;
+int nfscl_debuglevel = 0;
+char nfsv4_callbackaddr[INET6_ADDRSTRLEN];
+struct callout newnfsd_callout;
+int nfsrv_lughashsize = 100;
+struct mtx nfsrv_dslock_mtx;
+struct nfsdevicehead nfsrv_devidhead;
+volatile int nfsrv_devidcnt = 0;
+void (*nfsd_call_servertimer)(void) = NULL;
+void (*ncl_call_invalcaches)(struct vnode *) = NULL;
+
+int nfs_pnfsio(task_fn_t *, void *);
+
+static int nfs_realign_test;
+static int nfs_realign_count;
+static struct ext_nfsstats oldnfsstats;
+
+SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "NFS filesystem");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test,
+ 0, "Number of realign tests done");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count,
+ 0, "Number of mbuf realignments done");
+SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW,
+ nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr),
+ "NFSv4 callback addr for server to use");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel,
+ 0, "Debug level for NFS client");
+SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize,
+ 0, "Size of hash tables for uid/name mapping");
+int nfs_pnfsiothreads = -1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads,
+ 0, "Number of pNFS mirror I/O threads");
+
+/*
+ * Defines for malloc
+ * (Here for FreeBSD, since they allocate storage.)
+ */
+MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache");
+MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id");
+MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state",
+ "NFSD V4 State (Openowner, Open, Lockowner, Delegation");
+MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock");
+MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file");
+MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string");
+MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map");
+MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header");
+MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle");
+MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner");
+MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open");
+MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation");
+MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client");
+MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner");
+MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock");
+MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode");
+MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer");
+MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff",
+ "NFS directory offset data");
+MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback",
+ "NFS local lock rollback");
+MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout");
+MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout");
+MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info");
+MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req");
+MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session");
+MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall");
+MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client");
+
+/*
+ * Definition of mutex locks.
+ * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list
+ * and assorted other nfsd structures.
+ */
+struct mtx newnfsd_mtx;
+struct mtx nfs_sockl_mutex;
+struct mtx nfs_state_mutex;
+struct mtx nfs_nameid_mutex;
+struct mtx nfs_req_mutex;
+struct mtx nfs_slock_mutex;
+struct mtx nfs_clstate_mutex;
+
+/* local functions */
+static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *);
+
+#ifdef __NO_STRICT_ALIGNMENT
+/*
+ * These architectures don't need re-alignment, so just return.
+ */
+int
+newnfs_realign(struct mbuf **pm, int how)
+{
+
+ return (0);
+}
+#else /* !__NO_STRICT_ALIGNMENT */
+/*
+ * newnfs_realign:
+ *
+ * Check for badly aligned mbuf data and realign by copying the unaligned
+ * portion of the data into a new mbuf chain and freeing the portions
+ * of the old chain that were replaced.
+ *
+ * We cannot simply realign the data within the existing mbuf chain
+ * because the underlying buffers may contain other rpc commands and
+ * we cannot afford to overwrite them.
+ *
+ * We would prefer to avoid this situation entirely. The situation does
+ * not occur with NFS/UDP and is supposed to only occasionally occur
+ * with TCP. Use vfs.nfs.realign_count and realign_test to check this.
+ *
+ */
+int
+newnfs_realign(struct mbuf **pm, int how)
+{
+ struct mbuf *m, *n;
+ int off, space;
+
+ ++nfs_realign_test;
+ while ((m = *pm) != NULL) {
+ if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) {
+ /*
+ * NB: we can't depend on m_pkthdr.len to help us
+ * decide what to do here. May not be worth doing
+ * the m_length calculation as m_copyback will
+ * expand the mbuf chain below as needed.
+ */
+ space = m_length(m, NULL);
+ if (space >= MINCLSIZE) {
+ /* NB: m_copyback handles space > MCLBYTES */
+ n = m_getcl(how, MT_DATA, 0);
+ } else
+ n = m_get(how, MT_DATA);
+ if (n == NULL)
+ return (ENOMEM);
+ /*
+ * Align the remainder of the mbuf chain.
+ */
+ n->m_len = 0;
+ off = 0;
+ while (m != NULL) {
+ m_copyback(n, off, m->m_len, mtod(m, caddr_t));
+ off += m->m_len;
+ m = m->m_next;
+ }
+ m_freem(*pm);
+ *pm = n;
+ ++nfs_realign_count;
+ break;
+ }
+ pm = &m->m_next;
+ }
+
+ return (0);
+}
+#endif /* __NO_STRICT_ALIGNMENT */
+
+#ifdef notdef
+static void
+nfsrv_object_create(struct vnode *vp, struct thread *td)
+{
+
+ if (vp == NULL || vp->v_type != VREG)
+ return;
+ (void) vfs_object_create(vp, td, td->td_ucred);
+}
+#endif
+
+/*
+ * Look up a file name. Basically just initialize stuff and call namei().
+ */
+int
+nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p)
+{
+ int error;
+
+ NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname,
+ p);
+ error = namei(ndp);
+ if (!error) {
+ NDFREE(ndp, NDF_ONLY_PNBUF);
+ }
+ return (error);
+}
+
+/*
+ * Copy NFS uid, gids to the cred structure.
+ */
+void
+newnfs_copycred(struct nfscred *nfscr, struct ucred *cr)
+{
+
+ KASSERT(nfscr->nfsc_ngroups >= 0,
+ ("newnfs_copycred: negative nfsc_ngroups"));
+ cr->cr_uid = nfscr->nfsc_uid;
+ crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups);
+}
+
+/*
+ * Map args from nfsmsleep() to msleep().
+ */
+int
+nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg,
+ struct timespec *ts)
+{
+ u_int64_t nsecval;
+ int error, timeo;
+
+ if (ts) {
+ timeo = hz * ts->tv_sec;
+ nsecval = (u_int64_t)ts->tv_nsec;
+ nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) /
+ 1000000000;
+ timeo += (int)nsecval;
+ } else {
+ timeo = 0;
+ }
+ error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo);
+ return (error);
+}
+
+/*
+ * Get the file system info for the server. For now, just assume FFS.
+ */
+void
+nfsvno_getfs(struct nfsfsinfo *sip, int isdgram)
+{
+ int pref;
+
+ /*
+ * XXX
+ * There should be file system VFS OP(s) to get this information.
+ * For now, assume ufs.
+ */
+ if (isdgram)
+ pref = NFS_MAXDGRAMDATA;
+ else
+ pref = NFS_SRVMAXIO;
+ sip->fs_rtmax = NFS_SRVMAXIO;
+ sip->fs_rtpref = pref;
+ sip->fs_rtmult = NFS_FABLKSIZE;
+ sip->fs_wtmax = NFS_SRVMAXIO;
+ sip->fs_wtpref = pref;
+ sip->fs_wtmult = NFS_FABLKSIZE;
+ sip->fs_dtpref = pref;
+ sip->fs_maxfilesize = 0xffffffffffffffffull;
+ sip->fs_timedelta.tv_sec = 0;
+ sip->fs_timedelta.tv_nsec = 1;
+ sip->fs_properties = (NFSV3FSINFO_LINK |
+ NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS |
+ NFSV3FSINFO_CANSETTIME);
+}
+
+/*
+ * Do the pathconf vnode op.
+ */
+int
+nfsvno_pathconf(struct vnode *vp, int flag, long *retf,
+ struct ucred *cred, struct thread *p)
+{
+ int error;
+
+ error = VOP_PATHCONF(vp, flag, retf);
+ if (error == EOPNOTSUPP || error == EINVAL) {
+ /*
+ * Some file systems return EINVAL for name arguments not
+ * supported and some return EOPNOTSUPP for this case.
+ * So the NFSv3 Pathconf RPC doesn't fail for these cases,
+ * just fake them.
+ */
+ switch (flag) {
+ case _PC_LINK_MAX:
+ *retf = NFS_LINK_MAX;
+ break;
+ case _PC_NAME_MAX:
+ *retf = NAME_MAX;
+ break;
+ case _PC_CHOWN_RESTRICTED:
+ *retf = 1;
+ break;
+ case _PC_NO_TRUNC:
+ *retf = 1;
+ break;
+ default:
+ /*
+ * Only happens if a _PC_xxx is added to the server,
+ * but this isn't updated.
+ */
+ *retf = 0;
+ printf("nfsrvd pathconf flag=%d not supp\n", flag);
+ }
+ error = 0;
+ }
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/* Fake nfsrv_atroot. Just return 0 */
+int
+nfsrv_atroot(struct vnode *vp, uint64_t *retp)
+{
+
+ return (0);
+}
+
+/*
+ * Set the credentials to refer to root.
+ * If only the various BSDen could agree on whether cr_gid is a separate
+ * field or cr_groups[0]...
+ */
+void
+newnfs_setroot(struct ucred *cred)
+{
+
+ cred->cr_uid = 0;
+ cred->cr_groups[0] = 0;
+ cred->cr_ngroups = 1;
+}
+
+/*
+ * Get the client credential. Used for Renew and recovery.
+ */
+struct ucred *
+newnfs_getcred(void)
+{
+ struct ucred *cred;
+ struct thread *td = curthread;
+
+ cred = crdup(td->td_ucred);
+ newnfs_setroot(cred);
+ return (cred);
+}
+
+/*
+ * Nfs timer routine
+ * Call the nfsd's timer function once/sec.
+ */
+void
+newnfs_timer(void *arg)
+{
+ static time_t lasttime = 0;
+ /*
+ * Call the server timer, if set up.
+ * The argument indicates if it is the next second and therefore
+ * leases should be checked.
+ */
+ if (lasttime != NFSD_MONOSEC) {
+ lasttime = NFSD_MONOSEC;
+ if (nfsd_call_servertimer != NULL)
+ (*nfsd_call_servertimer)();
+ }
+ callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL);
+}
+
+
+/*
+ * Sleep for a short period of time unless errval == NFSERR_GRACE, where
+ * the sleep should be for 5 seconds.
+ * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on
+ * an event that never gets a wakeup. Only return EINTR or 0.
+ */
+int
+nfs_catnap(int prio, int errval, const char *wmesg)
+{
+ static int non_event;
+ int ret;
+
+ if (errval == NFSERR_GRACE)
+ ret = tsleep(&non_event, prio, wmesg, 5 * hz);
+ else
+ ret = tsleep(&non_event, prio, wmesg, 1);
+ if (ret != EINTR)
+ ret = 0;
+ return (ret);
+}
+
+/*
+ * Get referral. For now, just fail.
+ */
+struct nfsreferral *
+nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno)
+{
+
+ return (NULL);
+}
+
+static int
+nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap)
+{
+ int error;
+
+ error = nfssvc_call(td, uap, td->td_ucred);
+ NFSEXITCODE(error);
+ return (error);
+}
+
+static int
+nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred)
+{
+ int error = EINVAL, i, j;
+ struct nfsd_idargs nid;
+ struct nfsd_oidargs onid;
+ struct {
+ int vers; /* Just the first field of nfsstats. */
+ } nfsstatver;
+
+ if (uap->flag & NFSSVC_IDNAME) {
+ if ((uap->flag & NFSSVC_NEWSTRUCT) != 0)
+ error = copyin(uap->argp, &nid, sizeof(nid));
+ else {
+ error = copyin(uap->argp, &onid, sizeof(onid));
+ if (error == 0) {
+ nid.nid_flag = onid.nid_flag;
+ nid.nid_uid = onid.nid_uid;
+ nid.nid_gid = onid.nid_gid;
+ nid.nid_usermax = onid.nid_usermax;
+ nid.nid_usertimeout = onid.nid_usertimeout;
+ nid.nid_name = onid.nid_name;
+ nid.nid_namelen = onid.nid_namelen;
+ nid.nid_ngroup = 0;
+ nid.nid_grps = NULL;
+ }
+ }
+ if (error)
+ goto out;
+ error = nfssvc_idname(&nid);
+ goto out;
+ } else if (uap->flag & NFSSVC_GETSTATS) {
+ if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) {
+ /* Copy fields to the old ext_nfsstat structure. */
+ oldnfsstats.attrcache_hits =
+ nfsstatsv1.attrcache_hits;
+ oldnfsstats.attrcache_misses =
+ nfsstatsv1.attrcache_misses;
+ oldnfsstats.lookupcache_hits =
+ nfsstatsv1.lookupcache_hits;
+ oldnfsstats.lookupcache_misses =
+ nfsstatsv1.lookupcache_misses;
+ oldnfsstats.direofcache_hits =
+ nfsstatsv1.direofcache_hits;
+ oldnfsstats.direofcache_misses =
+ nfsstatsv1.direofcache_misses;
+ oldnfsstats.accesscache_hits =
+ nfsstatsv1.accesscache_hits;
+ oldnfsstats.accesscache_misses =
+ nfsstatsv1.accesscache_misses;
+ oldnfsstats.biocache_reads =
+ nfsstatsv1.biocache_reads;
+ oldnfsstats.read_bios =
+ nfsstatsv1.read_bios;
+ oldnfsstats.read_physios =
+ nfsstatsv1.read_physios;
+ oldnfsstats.biocache_writes =
+ nfsstatsv1.biocache_writes;
+ oldnfsstats.write_bios =
+ nfsstatsv1.write_bios;
+ oldnfsstats.write_physios =
+ nfsstatsv1.write_physios;
+ oldnfsstats.biocache_readlinks =
+ nfsstatsv1.biocache_readlinks;
+ oldnfsstats.readlink_bios =
+ nfsstatsv1.readlink_bios;
+ oldnfsstats.biocache_readdirs =
+ nfsstatsv1.biocache_readdirs;
+ oldnfsstats.readdir_bios =
+ nfsstatsv1.readdir_bios;
+ for (i = 0; i < NFSV4_NPROCS; i++)
+ oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i];
+ oldnfsstats.rpcretries = nfsstatsv1.rpcretries;
+ for (i = 0; i < NFSV4OP_NOPS; i++)
+ oldnfsstats.srvrpccnt[i] =
+ nfsstatsv1.srvrpccnt[i];
+ for (i = NFSV42_NOPS, j = NFSV4OP_NOPS;
+ i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++)
+ oldnfsstats.srvrpccnt[j] =
+ nfsstatsv1.srvrpccnt[i];
+ oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs;
+ oldnfsstats.srv_errs = nfsstatsv1.srv_errs;
+ oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests;
+ oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts;
+ oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected;
+ oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid;
+ oldnfsstats.srvcache_inproghits =
+ nfsstatsv1.srvcache_inproghits;
+ oldnfsstats.srvcache_idemdonehits =
+ nfsstatsv1.srvcache_idemdonehits;
+ oldnfsstats.srvcache_nonidemdonehits =
+ nfsstatsv1.srvcache_nonidemdonehits;
+ oldnfsstats.srvcache_misses =
+ nfsstatsv1.srvcache_misses;
+ oldnfsstats.srvcache_tcppeak =
+ nfsstatsv1.srvcache_tcppeak;
+ oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size;
+ oldnfsstats.srvclients = nfsstatsv1.srvclients;
+ oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners;
+ oldnfsstats.srvopens = nfsstatsv1.srvopens;
+ oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners;
+ oldnfsstats.srvlocks = nfsstatsv1.srvlocks;
+ oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates;
+ for (i = 0; i < NFSV4OP_CBNOPS; i++)
+ oldnfsstats.cbrpccnt[i] =
+ nfsstatsv1.cbrpccnt[i];
+ oldnfsstats.clopenowners = nfsstatsv1.clopenowners;
+ oldnfsstats.clopens = nfsstatsv1.clopens;
+ oldnfsstats.cllockowners = nfsstatsv1.cllockowners;
+ oldnfsstats.cllocks = nfsstatsv1.cllocks;
+ oldnfsstats.cldelegates = nfsstatsv1.cldelegates;
+ oldnfsstats.cllocalopenowners =
+ nfsstatsv1.cllocalopenowners;
+ oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens;
+ oldnfsstats.cllocallockowners =
+ nfsstatsv1.cllocallockowners;
+ oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks;
+ error = copyout(&oldnfsstats, uap->argp,
+ sizeof (oldnfsstats));
+ } else {
+ error = copyin(uap->argp, &nfsstatver,
+ sizeof(nfsstatver));
+ if (error == 0 && nfsstatver.vers != NFSSTATS_V1)
+ error = EPERM;
+ if (error == 0)
+ error = copyout(&nfsstatsv1, uap->argp,
+ sizeof (nfsstatsv1));
+ }
+ if (error == 0) {
+ if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) {
+ nfsstatsv1.attrcache_hits = 0;
+ nfsstatsv1.attrcache_misses = 0;
+ nfsstatsv1.lookupcache_hits = 0;
+ nfsstatsv1.lookupcache_misses = 0;
+ nfsstatsv1.direofcache_hits = 0;
+ nfsstatsv1.direofcache_misses = 0;
+ nfsstatsv1.accesscache_hits = 0;
+ nfsstatsv1.accesscache_misses = 0;
+ nfsstatsv1.biocache_reads = 0;
+ nfsstatsv1.read_bios = 0;
+ nfsstatsv1.read_physios = 0;
+ nfsstatsv1.biocache_writes = 0;
+ nfsstatsv1.write_bios = 0;
+ nfsstatsv1.write_physios = 0;
+ nfsstatsv1.biocache_readlinks = 0;
+ nfsstatsv1.readlink_bios = 0;
+ nfsstatsv1.biocache_readdirs = 0;
+ nfsstatsv1.readdir_bios = 0;
+ nfsstatsv1.rpcretries = 0;
+ nfsstatsv1.rpcrequests = 0;
+ nfsstatsv1.rpctimeouts = 0;
+ nfsstatsv1.rpcunexpected = 0;
+ nfsstatsv1.rpcinvalid = 0;
+ bzero(nfsstatsv1.rpccnt,
+ sizeof(nfsstatsv1.rpccnt));
+ }
+ if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) {
+ nfsstatsv1.srvrpc_errs = 0;
+ nfsstatsv1.srv_errs = 0;
+ nfsstatsv1.srvcache_inproghits = 0;
+ nfsstatsv1.srvcache_idemdonehits = 0;
+ nfsstatsv1.srvcache_nonidemdonehits = 0;
+ nfsstatsv1.srvcache_misses = 0;
+ nfsstatsv1.srvcache_tcppeak = 0;
+ bzero(nfsstatsv1.srvrpccnt,
+ sizeof(nfsstatsv1.srvrpccnt));
+ bzero(nfsstatsv1.cbrpccnt,
+ sizeof(nfsstatsv1.cbrpccnt));
+ }
+ }
+ goto out;
+ } else if (uap->flag & NFSSVC_NFSUSERDPORT) {
+ u_short sockport;
+ struct nfsuserd_args nargs;
+
+ if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) {
+ error = copyin(uap->argp, (caddr_t)&sockport,
+ sizeof (u_short));
+ if (error == 0) {
+ nargs.nuserd_family = AF_INET;
+ nargs.nuserd_port = sockport;
+ }
+ } else {
+ /*
+ * New nfsuserd_args structure, which indicates
+ * which IP version to use along with the port#.
+ */
+ error = copyin(uap->argp, &nargs, sizeof(nargs));
+ }
+ if (!error)
+ error = nfsrv_nfsuserdport(&nargs, p);
+ } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) {
+ nfsrv_nfsuserddelport();
+ error = 0;
+ }
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * called by all three modevent routines, so that it gets things
+ * initialized soon enough.
+ */
+void
+newnfs_portinit(void)
+{
+ static int inited = 0;
+
+ if (inited)
+ return;
+ inited = 1;
+ /* Initialize SMP locks used by both client and server. */
+ mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF);
+ mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF);
+ mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF);
+}
+
+/*
+ * Determine if the file system supports NFSv4 ACLs.
+ * Return 1 if it does, 0 otherwise.
+ */
+int
+nfs_supportsnfsv4acls(struct vnode *vp)
+{
+ int error;
+ long retval;
+
+ ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls");
+
+ if (nfsrv_useacl == 0)
+ return (0);
+ error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval);
+ if (error == 0 && retval != 0)
+ return (1);
+ return (0);
+}
+
+/*
+ * These are the first fields of all the context structures passed into
+ * nfs_pnfsio().
+ */
+struct pnfsio {
+ int done;
+ int inprog;
+ struct task tsk;
+};
+
+/*
+ * Do a mirror I/O on a pNFS thread.
+ */
+int
+nfs_pnfsio(task_fn_t *func, void *context)
+{
+ struct pnfsio *pio;
+ int ret;
+ static struct taskqueue *pnfsioq = NULL;
+
+ pio = (struct pnfsio *)context;
+ if (pnfsioq == NULL) {
+ if (nfs_pnfsiothreads == 0)
+ return (EPERM);
+ if (nfs_pnfsiothreads < 0)
+ nfs_pnfsiothreads = mp_ncpus * 4;
+ pnfsioq = taskqueue_create("pnfsioq", M_WAITOK,
+ taskqueue_thread_enqueue, &pnfsioq);
+ if (pnfsioq == NULL)
+ return (ENOMEM);
+ ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads,
+ 0, "pnfsiot");
+ if (ret != 0) {
+ taskqueue_free(pnfsioq);
+ pnfsioq = NULL;
+ return (ret);
+ }
+ }
+ pio->inprog = 1;
+ TASK_INIT(&pio->tsk, 0, func, context);
+ ret = taskqueue_enqueue(pnfsioq, &pio->tsk);
+ if (ret != 0)
+ pio->inprog = 0;
+ return (ret);
+}
+
+extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *);
+
+/*
+ * Called once to initialize data structures...
+ */
+static int
+nfscommon_modevent(module_t mod, int type, void *data)
+{
+ int error = 0;
+ static int loaded = 0;
+
+ switch (type) {
+ case MOD_LOAD:
+ if (loaded)
+ goto out;
+ newnfs_portinit();
+ mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF);
+ mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF);
+ mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF);
+ mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF);
+ mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL,
+ MTX_DEF);
+ mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF);
+ TAILQ_INIT(&nfsrv_devidhead);
+ callout_init(&newnfsd_callout, 1);
+ newnfs_init();
+ nfsd_call_nfscommon = nfssvc_nfscommon;
+ loaded = 1;
+ break;
+
+ case MOD_UNLOAD:
+ if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING ||
+ nfs_numnfscbd != 0) {
+ error = EBUSY;
+ break;
+ }
+
+ nfsd_call_nfscommon = NULL;
+ callout_drain(&newnfsd_callout);
+ /* Clean out the name<-->id cache. */
+ nfsrv_cleanusergroup();
+ /* and get rid of the mutexes */
+ mtx_destroy(&nfs_nameid_mutex);
+ mtx_destroy(&newnfsd_mtx);
+ mtx_destroy(&nfs_state_mutex);
+ mtx_destroy(&nfs_clstate_mutex);
+ mtx_destroy(&nfs_sockl_mutex);
+ mtx_destroy(&nfs_slock_mutex);
+ mtx_destroy(&nfs_req_mutex);
+ mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx);
+ mtx_destroy(&nfsrv_dslock_mtx);
+ loaded = 0;
+ break;
+ default:
+ error = EOPNOTSUPP;
+ break;
+ }
+
+out:
+ NFSEXITCODE(error);
+ return error;
+}
+static moduledata_t nfscommon_mod = {
+ "nfscommon",
+ nfscommon_modevent,
+ NULL,
+};
+DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY);
+
+/* So that loader and kldload(2) can find us, wherever we are.. */
+MODULE_VERSION(nfscommon, 1);
+MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1);
+MODULE_DEPEND(nfscommon, krpc, 1, 1, 1);
+
diff --git a/freebsd/sys/fs/nfs/nfs_commonsubs.c b/freebsd/sys/fs/nfs/nfs_commonsubs.c
new file mode 100644
index 0000000..9214674
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs_commonsubs.c
@@ -0,0 +1,4769 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * These functions support the macros and help fiddle mbuf chains for
+ * the nfs op functions. They do things like create the rpc header and
+ * copy data between mbuf chains and uio lists.
+ */
+#ifndef APPLEKEXT
+#include "opt_inet.h"
+#include "opt_inet6.h"
+
+#include <fs/nfs/nfsport.h>
+
+#include <security/mac/mac_framework.h>
+
+/*
+ * Data items converted to xdr at startup, since they are constant
+ * This is kinda hokey, but may save a little time doing byte swaps
+ */
+u_int32_t newnfs_true, newnfs_false, newnfs_xdrneg1;
+
+/* And other global data */
+nfstype nfsv34_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFSOCK,
+ NFFIFO, NFNON };
+enum vtype newnv2tov_type[8] = { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON };
+enum vtype nv34tov_type[8]={ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO };
+struct timeval nfsboottime; /* Copy boottime once, so it never changes */
+int nfscl_ticks;
+int nfsrv_useacl = 1;
+struct nfssockreq nfsrv_nfsuserdsock;
+nfsuserd_state nfsrv_nfsuserd = NOTRUNNING;
+static int nfsrv_userdupcalls = 0;
+struct nfsreqhead nfsd_reqq;
+uid_t nfsrv_defaultuid = UID_NOBODY;
+gid_t nfsrv_defaultgid = GID_NOGROUP;
+int nfsrv_lease = NFSRV_LEASE;
+int ncl_mbuf_mlen = MLEN;
+int nfsd_enable_stringtouid = 0;
+int nfsrv_doflexfile = 0;
+static int nfs_enable_uidtostring = 0;
+NFSNAMEIDMUTEX;
+NFSSOCKMUTEX;
+extern int nfsrv_lughashsize;
+extern struct mtx nfsrv_dslock_mtx;
+extern volatile int nfsrv_devidcnt;
+extern int nfscl_debuglevel;
+extern struct nfsdevicehead nfsrv_devidhead;
+extern struct nfsstatsv1 nfsstatsv1;
+
+SYSCTL_DECL(_vfs_nfs);
+SYSCTL_INT(_vfs_nfs, OID_AUTO, enable_uidtostring, CTLFLAG_RW,
+ &nfs_enable_uidtostring, 0, "Make nfs always send numeric owner_names");
+
+int nfsrv_maxpnfsmirror = 1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsmirror, CTLFLAG_RD,
+ &nfsrv_maxpnfsmirror, 0, "Mirror level for pNFS service");
+
+/*
+ * This array of structures indicates, for V4:
+ * retfh - which of 3 types of calling args are used
+ * 0 - doesn't change cfh or use a sfh
+ * 1 - replaces cfh with a new one (unless it returns an error status)
+ * 2 - uses cfh and sfh
+ * needscfh - if the op wants a cfh and premtime
+ * 0 - doesn't use a cfh
+ * 1 - uses a cfh, but doesn't want pre-op attributes
+ * 2 - uses a cfh and wants pre-op attributes
+ * savereply - indicates a non-idempotent Op
+ * 0 - not non-idempotent
+ * 1 - non-idempotent
+ * Ops that are ordered via seqid# are handled separately from these
+ * non-idempotent Ops.
+ * Define it here, since it is used by both the client and server.
+ */
+struct nfsv4_opflag nfsv4_opflag[NFSV41_NOPS] = {
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
+ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Access */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Close */
+ { 0, 2, 0, 1, LK_EXCLUSIVE, 1, 1 }, /* Commit */
+ { 1, 2, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Create */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Delegpurge */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Delegreturn */
+ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Getattr */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* GetFH */
+ { 2, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Link */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Lock */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* LockT */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* LockU */
+ { 1, 2, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Lookup */
+ { 1, 2, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Lookupp */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* NVerify */
+ { 1, 1, 0, 1, LK_EXCLUSIVE, 1, 0 }, /* Open */
+ { 1, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenAttr */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenConfirm */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenDowngrade */
+ { 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutFH */
+ { 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutPubFH */
+ { 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutRootFH */
+ { 0, 1, 0, 0, LK_SHARED, 1, 0 }, /* Read */
+ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Readdir */
+ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* ReadLink */
+ { 0, 2, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Remove */
+ { 2, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Rename */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Renew */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* RestoreFH */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SaveFH */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SecInfo */
+ { 0, 2, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Setattr */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SetClientID */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SetClientIDConfirm */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Verify */
+ { 0, 2, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Write */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* ReleaseLockOwner */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Backchannel Ctrl */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Bind Conn to Sess */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Exchange ID */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Create Session */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Destroy Session */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Free StateID */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Dir Deleg */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Device Info */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Device List */
+ { 0, 1, 0, 1, LK_EXCLUSIVE, 1, 1 }, /* Layout Commit */
+ { 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Layout Get */
+ { 0, 1, 0, 1, LK_EXCLUSIVE, 1, 0 }, /* Layout Return */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Secinfo No name */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Sequence */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Set SSV */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Test StateID */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Want Delegation */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Destroy ClientID */
+ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Reclaim Complete */
+};
+#endif /* !APPLEKEXT */
+
+static int ncl_mbuf_mhlen = MHLEN;
+static int nfsrv_usercnt = 0;
+static int nfsrv_dnsnamelen;
+static u_char *nfsrv_dnsname = NULL;
+static int nfsrv_usermax = 999999999;
+struct nfsrv_lughash {
+ struct mtx mtx;
+ struct nfsuserhashhead lughead;
+};
+static struct nfsrv_lughash *nfsuserhash;
+static struct nfsrv_lughash *nfsusernamehash;
+static struct nfsrv_lughash *nfsgrouphash;
+static struct nfsrv_lughash *nfsgroupnamehash;
+
+/*
+ * This static array indicates whether or not the RPC generates a large
+ * reply. This is used by nfs_reply() to decide whether or not an mbuf
+ * cluster should be allocated. (If a cluster is required by an RPC
+ * marked 0 in this array, the code will still work, just not quite as
+ * efficiently.)
+ */
+static int nfs_bigreply[NFSV41_NPROCS] = { 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 };
+
+/* local functions */
+static int nfsrv_skipace(struct nfsrv_descript *nd, int *acesizep);
+static void nfsv4_wanted(struct nfsv4lock *lp);
+static int nfsrv_cmpmixedcase(u_char *cp, u_char *cp2, int len);
+static int nfsrv_getuser(int procnum, uid_t uid, gid_t gid, char *name,
+ NFSPROC_T *p);
+static void nfsrv_removeuser(struct nfsusrgrp *usrp, int isuser);
+static int nfsrv_getrefstr(struct nfsrv_descript *, u_char **, u_char **,
+ int *, int *);
+static void nfsrv_refstrbigenough(int, u_char **, u_char **, int *);
+
+static struct {
+ int op;
+ int opcnt;
+ const u_char *tag;
+ int taglen;
+} nfsv4_opmap[NFSV41_NPROCS] = {
+ { 0, 1, "Null", 4 },
+ { NFSV4OP_GETATTR, 1, "Getattr", 7, },
+ { NFSV4OP_SETATTR, 2, "Setattr", 7, },
+ { NFSV4OP_LOOKUP, 3, "Lookup", 6, },
+ { NFSV4OP_ACCESS, 2, "Access", 6, },
+ { NFSV4OP_READLINK, 2, "Readlink", 8, },
+ { NFSV4OP_READ, 1, "Read", 4, },
+ { NFSV4OP_WRITE, 2, "Write", 5, },
+ { NFSV4OP_OPEN, 5, "Open", 4, },
+ { NFSV4OP_CREATE, 5, "Create", 6, },
+ { NFSV4OP_CREATE, 1, "Create", 6, },
+ { NFSV4OP_CREATE, 3, "Create", 6, },
+ { NFSV4OP_REMOVE, 1, "Remove", 6, },
+ { NFSV4OP_REMOVE, 1, "Remove", 6, },
+ { NFSV4OP_SAVEFH, 5, "Rename", 6, },
+ { NFSV4OP_SAVEFH, 4, "Link", 4, },
+ { NFSV4OP_READDIR, 2, "Readdir", 7, },
+ { NFSV4OP_READDIR, 2, "Readdir", 7, },
+ { NFSV4OP_GETATTR, 1, "Getattr", 7, },
+ { NFSV4OP_GETATTR, 1, "Getattr", 7, },
+ { NFSV4OP_GETATTR, 1, "Getattr", 7, },
+ { NFSV4OP_COMMIT, 2, "Commit", 6, },
+ { NFSV4OP_LOOKUPP, 3, "Lookupp", 7, },
+ { NFSV4OP_SETCLIENTID, 1, "SetClientID", 11, },
+ { NFSV4OP_SETCLIENTIDCFRM, 1, "SetClientIDConfirm", 18, },
+ { NFSV4OP_LOCK, 1, "Lock", 4, },
+ { NFSV4OP_LOCKU, 1, "LockU", 5, },
+ { NFSV4OP_OPEN, 2, "Open", 4, },
+ { NFSV4OP_CLOSE, 1, "Close", 5, },
+ { NFSV4OP_OPENCONFIRM, 1, "Openconfirm", 11, },
+ { NFSV4OP_LOCKT, 1, "LockT", 5, },
+ { NFSV4OP_OPENDOWNGRADE, 1, "Opendowngrade", 13, },
+ { NFSV4OP_RENEW, 1, "Renew", 5, },
+ { NFSV4OP_PUTROOTFH, 1, "Dirpath", 7, },
+ { NFSV4OP_RELEASELCKOWN, 1, "Rellckown", 9, },
+ { NFSV4OP_DELEGRETURN, 1, "Delegret", 8, },
+ { NFSV4OP_DELEGRETURN, 3, "DelegRemove", 11, },
+ { NFSV4OP_DELEGRETURN, 7, "DelegRename1", 12, },
+ { NFSV4OP_DELEGRETURN, 9, "DelegRename2", 12, },
+ { NFSV4OP_GETATTR, 1, "Getacl", 6, },
+ { NFSV4OP_SETATTR, 1, "Setacl", 6, },
+ { NFSV4OP_EXCHANGEID, 1, "ExchangeID", 10, },
+ { NFSV4OP_CREATESESSION, 1, "CreateSession", 13, },
+ { NFSV4OP_DESTROYSESSION, 1, "DestroySession", 14, },
+ { NFSV4OP_DESTROYCLIENTID, 1, "DestroyClient", 13, },
+ { NFSV4OP_FREESTATEID, 1, "FreeStateID", 11, },
+ { NFSV4OP_LAYOUTGET, 1, "LayoutGet", 9, },
+ { NFSV4OP_GETDEVINFO, 1, "GetDeviceInfo", 13, },
+ { NFSV4OP_LAYOUTCOMMIT, 1, "LayoutCommit", 12, },
+ { NFSV4OP_LAYOUTRETURN, 1, "LayoutReturn", 12, },
+ { NFSV4OP_RECLAIMCOMPL, 1, "ReclaimComplete", 15, },
+ { NFSV4OP_WRITE, 1, "WriteDS", 7, },
+ { NFSV4OP_READ, 1, "ReadDS", 6, },
+ { NFSV4OP_COMMIT, 1, "CommitDS", 8, },
+ { NFSV4OP_OPEN, 3, "OpenLayoutGet", 13, },
+ { NFSV4OP_OPEN, 8, "CreateLayGet", 12, },
+};
+
+/*
+ * NFS RPCS that have large request message size.
+ */
+static int nfs_bigrequest[NFSV41_NPROCS] = {
+ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0
+};
+
+/*
+ * Start building a request. Mostly just put the first file handle in
+ * place.
+ */
+APPLESTATIC void
+nfscl_reqstart(struct nfsrv_descript *nd, int procnum, struct nfsmount *nmp,
+ u_int8_t *nfhp, int fhlen, u_int32_t **opcntpp, struct nfsclsession *sep,
+ int vers, int minorvers)
+{
+ struct mbuf *mb;
+ u_int32_t *tl;
+ int opcnt;
+ nfsattrbit_t attrbits;
+
+ /*
+ * First, fill in some of the fields of nd.
+ */
+ nd->nd_slotseq = NULL;
+ if (vers == NFS_VER4) {
+ nd->nd_flag = ND_NFSV4 | ND_NFSCL;
+ if (minorvers == NFSV41_MINORVERSION)
+ nd->nd_flag |= ND_NFSV41;
+ } else if (vers == NFS_VER3)
+ nd->nd_flag = ND_NFSV3 | ND_NFSCL;
+ else {
+ if (NFSHASNFSV4(nmp)) {
+ nd->nd_flag = ND_NFSV4 | ND_NFSCL;
+ if (NFSHASNFSV4N(nmp))
+ nd->nd_flag |= ND_NFSV41;
+ } else if (NFSHASNFSV3(nmp))
+ nd->nd_flag = ND_NFSV3 | ND_NFSCL;
+ else
+ nd->nd_flag = ND_NFSV2 | ND_NFSCL;
+ }
+ nd->nd_procnum = procnum;
+ nd->nd_repstat = 0;
+
+ /*
+ * Get the first mbuf for the request.
+ */
+ if (nfs_bigrequest[procnum])
+ NFSMCLGET(mb, M_WAITOK);
+ else
+ NFSMGET(mb);
+ mbuf_setlen(mb, 0);
+ nd->nd_mreq = nd->nd_mb = mb;
+ nd->nd_bpos = NFSMTOD(mb, caddr_t);
+
+ /*
+ * And fill the first file handle into the request.
+ */
+ if (nd->nd_flag & ND_NFSV4) {
+ opcnt = nfsv4_opmap[procnum].opcnt +
+ nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh;
+ if ((nd->nd_flag & ND_NFSV41) != 0) {
+ opcnt += nfsv4_opflag[nfsv4_opmap[procnum].op].needsseq;
+ if (procnum == NFSPROC_RENEW)
+ /*
+ * For the special case of Renew, just do a
+ * Sequence Op.
+ */
+ opcnt = 1;
+ else if (procnum == NFSPROC_WRITEDS ||
+ procnum == NFSPROC_COMMITDS)
+ /*
+ * For the special case of a Writeor Commit to
+ * a DS, the opcnt == 3, for Sequence, PutFH,
+ * Write/Commit.
+ */
+ opcnt = 3;
+ }
+ /*
+ * What should the tag really be?
+ */
+ (void) nfsm_strtom(nd, nfsv4_opmap[procnum].tag,
+ nfsv4_opmap[procnum].taglen);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if ((nd->nd_flag & ND_NFSV41) != 0)
+ *tl++ = txdr_unsigned(NFSV41_MINORVERSION);
+ else
+ *tl++ = txdr_unsigned(NFSV4_MINORVERSION);
+ if (opcntpp != NULL)
+ *opcntpp = tl;
+ *tl = txdr_unsigned(opcnt);
+ if ((nd->nd_flag & ND_NFSV41) != 0 &&
+ nfsv4_opflag[nfsv4_opmap[procnum].op].needsseq > 0) {
+ if (nfsv4_opflag[nfsv4_opmap[procnum].op].loopbadsess >
+ 0)
+ nd->nd_flag |= ND_LOOPBADSESS;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_SEQUENCE);
+ if (sep == NULL) {
+ sep = nfsmnt_mdssession(nmp);
+ nfsv4_setsequence(nmp, nd, sep,
+ nfs_bigreply[procnum]);
+ } else
+ nfsv4_setsequence(nmp, nd, sep,
+ nfs_bigreply[procnum]);
+ }
+ if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh > 0) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ (void) nfsm_fhtom(nd, nfhp, fhlen, 0);
+ if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh
+ == 2 && procnum != NFSPROC_WRITEDS &&
+ procnum != NFSPROC_COMMITDS) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ /*
+ * For Lookup Ops, we want all the directory
+ * attributes, so we can load the name cache.
+ */
+ if (procnum == NFSPROC_LOOKUP ||
+ procnum == NFSPROC_LOOKUPP)
+ NFSGETATTR_ATTRBIT(&attrbits);
+ else {
+ NFSWCCATTR_ATTRBIT(&attrbits);
+ nd->nd_flag |= ND_V4WCCATTR;
+ }
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ }
+ if (procnum != NFSPROC_RENEW ||
+ (nd->nd_flag & ND_NFSV41) == 0) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(nfsv4_opmap[procnum].op);
+ }
+ } else {
+ (void) nfsm_fhtom(nd, nfhp, fhlen, 0);
+ }
+ if (procnum < NFSV41_NPROCS)
+ NFSINCRGLOBAL(nfsstatsv1.rpccnt[procnum]);
+}
+
+/*
+ * Put a state Id in the mbuf list.
+ */
+APPLESTATIC void
+nfsm_stateidtom(struct nfsrv_descript *nd, nfsv4stateid_t *stateidp, int flag)
+{
+ nfsv4stateid_t *st;
+
+ NFSM_BUILD(st, nfsv4stateid_t *, NFSX_STATEID);
+ if (flag == NFSSTATEID_PUTALLZERO) {
+ st->seqid = 0;
+ st->other[0] = 0;
+ st->other[1] = 0;
+ st->other[2] = 0;
+ } else if (flag == NFSSTATEID_PUTALLONE) {
+ st->seqid = 0xffffffff;
+ st->other[0] = 0xffffffff;
+ st->other[1] = 0xffffffff;
+ st->other[2] = 0xffffffff;
+ } else if (flag == NFSSTATEID_PUTSEQIDZERO) {
+ st->seqid = 0;
+ st->other[0] = stateidp->other[0];
+ st->other[1] = stateidp->other[1];
+ st->other[2] = stateidp->other[2];
+ } else {
+ st->seqid = stateidp->seqid;
+ st->other[0] = stateidp->other[0];
+ st->other[1] = stateidp->other[1];
+ st->other[2] = stateidp->other[2];
+ }
+}
+
+/*
+ * Fill in the setable attributes. The full argument indicates whether
+ * to fill in them all or just mode and time.
+ */
+void
+nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap,
+ struct vnode *vp, int flags, u_int32_t rdev)
+{
+ u_int32_t *tl;
+ struct nfsv2_sattr *sp;
+ nfsattrbit_t attrbits;
+
+ switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) {
+ case ND_NFSV2:
+ NFSM_BUILD(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
+ if (vap->va_mode == (mode_t)VNOVAL)
+ sp->sa_mode = newnfs_xdrneg1;
+ else
+ sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode);
+ if (vap->va_uid == (uid_t)VNOVAL)
+ sp->sa_uid = newnfs_xdrneg1;
+ else
+ sp->sa_uid = txdr_unsigned(vap->va_uid);
+ if (vap->va_gid == (gid_t)VNOVAL)
+ sp->sa_gid = newnfs_xdrneg1;
+ else
+ sp->sa_gid = txdr_unsigned(vap->va_gid);
+ if (flags & NFSSATTR_SIZE0)
+ sp->sa_size = 0;
+ else if (flags & NFSSATTR_SIZENEG1)
+ sp->sa_size = newnfs_xdrneg1;
+ else if (flags & NFSSATTR_SIZERDEV)
+ sp->sa_size = txdr_unsigned(rdev);
+ else
+ sp->sa_size = txdr_unsigned(vap->va_size);
+ txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
+ txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
+ break;
+ case ND_NFSV3:
+ if (vap->va_mode != (mode_t)VNOVAL) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = newnfs_true;
+ *tl = txdr_unsigned(vap->va_mode);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ }
+ if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = newnfs_true;
+ *tl = txdr_unsigned(vap->va_uid);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ }
+ if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = newnfs_true;
+ *tl = txdr_unsigned(vap->va_gid);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ }
+ if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) {
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = newnfs_true;
+ txdr_hyper(vap->va_size, tl);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ }
+ if (vap->va_atime.tv_sec != VNOVAL) {
+ if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
+ txdr_nfsv3time(&vap->va_atime, tl);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
+ }
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
+ }
+ if (vap->va_mtime.tv_sec != VNOVAL) {
+ if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
+ txdr_nfsv3time(&vap->va_mtime, tl);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
+ }
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
+ }
+ break;
+ case ND_NFSV4:
+ NFSZERO_ATTRBIT(&attrbits);
+ if (vap->va_mode != (mode_t)VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_MODE);
+ if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER);
+ if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP);
+ if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_SIZE);
+ if (vap->va_atime.tv_sec != VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET);
+ if (vap->va_mtime.tv_sec != VNOVAL)
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET);
+ (void) nfsv4_fillattr(nd, vp->v_mount, vp, NULL, vap, NULL, 0,
+ &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL);
+ break;
+ }
+}
+
+#ifndef APPLE
+/*
+ * copies mbuf chain to the uio scatter/gather list
+ */
+int
+nfsm_mbufuio(struct nfsrv_descript *nd, struct uio *uiop, int siz)
+{
+ char *mbufcp, *uiocp;
+ int xfer, left, len;
+ mbuf_t mp;
+ long uiosiz, rem;
+ int error = 0;
+
+ mp = nd->nd_md;
+ mbufcp = nd->nd_dpos;
+ len = NFSMTOD(mp, caddr_t) + mbuf_len(mp) - mbufcp;
+ rem = NFSM_RNDUP(siz) - siz;
+ while (siz > 0) {
+ if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) {
+ error = EBADRPC;
+ goto out;
+ }
+ left = uiop->uio_iov->iov_len;
+ uiocp = uiop->uio_iov->iov_base;
+ if (left > siz)
+ left = siz;
+ uiosiz = left;
+ while (left > 0) {
+ while (len == 0) {
+ mp = mbuf_next(mp);
+ if (mp == NULL) {
+ error = EBADRPC;
+ goto out;
+ }
+ mbufcp = NFSMTOD(mp, caddr_t);
+ len = mbuf_len(mp);
+ KASSERT(len >= 0,
+ ("len %d, corrupted mbuf?", len));
+ }
+ xfer = (left > len) ? len : left;
+#ifdef notdef
+ /* Not Yet.. */
+ if (uiop->uio_iov->iov_op != NULL)
+ (*(uiop->uio_iov->iov_op))
+ (mbufcp, uiocp, xfer);
+ else
+#endif
+ if (uiop->uio_segflg == UIO_SYSSPACE)
+ NFSBCOPY(mbufcp, uiocp, xfer);
+ else
+ copyout(mbufcp, CAST_USER_ADDR_T(uiocp), xfer);
+ left -= xfer;
+ len -= xfer;
+ mbufcp += xfer;
+ uiocp += xfer;
+ uiop->uio_offset += xfer;
+ uiop->uio_resid -= xfer;
+ }
+ if (uiop->uio_iov->iov_len <= siz) {
+ uiop->uio_iovcnt--;
+ uiop->uio_iov++;
+ } else {
+ uiop->uio_iov->iov_base = (void *)
+ ((char *)uiop->uio_iov->iov_base + uiosiz);
+ uiop->uio_iov->iov_len -= uiosiz;
+ }
+ siz -= uiosiz;
+ }
+ nd->nd_dpos = mbufcp;
+ nd->nd_md = mp;
+ if (rem > 0) {
+ if (len < rem)
+ error = nfsm_advance(nd, rem, len);
+ else
+ nd->nd_dpos += rem;
+ }
+
+out:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+#endif /* !APPLE */
+
+/*
+ * Help break down an mbuf chain by setting the first siz bytes contiguous
+ * pointed to by returned val.
+ * This is used by the macro NFSM_DISSECT for tough
+ * cases.
+ */
+APPLESTATIC void *
+nfsm_dissct(struct nfsrv_descript *nd, int siz, int how)
+{
+ mbuf_t mp2;
+ int siz2, xfer;
+ caddr_t p;
+ int left;
+ caddr_t retp;
+
+ retp = NULL;
+ left = NFSMTOD(nd->nd_md, caddr_t) + mbuf_len(nd->nd_md) - nd->nd_dpos;
+ while (left == 0) {
+ nd->nd_md = mbuf_next(nd->nd_md);
+ if (nd->nd_md == NULL)
+ return (retp);
+ left = mbuf_len(nd->nd_md);
+ nd->nd_dpos = NFSMTOD(nd->nd_md, caddr_t);
+ }
+ if (left >= siz) {
+ retp = nd->nd_dpos;
+ nd->nd_dpos += siz;
+ } else if (mbuf_next(nd->nd_md) == NULL) {
+ return (retp);
+ } else if (siz > ncl_mbuf_mhlen) {
+ panic("nfs S too big");
+ } else {
+ MGET(mp2, MT_DATA, how);
+ if (mp2 == NULL)
+ return (NULL);
+ mbuf_setnext(mp2, mbuf_next(nd->nd_md));
+ mbuf_setnext(nd->nd_md, mp2);
+ mbuf_setlen(nd->nd_md, mbuf_len(nd->nd_md) - left);
+ nd->nd_md = mp2;
+ retp = p = NFSMTOD(mp2, caddr_t);
+ NFSBCOPY(nd->nd_dpos, p, left); /* Copy what was left */
+ siz2 = siz - left;
+ p += left;
+ mp2 = mbuf_next(mp2);
+ /* Loop around copying up the siz2 bytes */
+ while (siz2 > 0) {
+ if (mp2 == NULL)
+ return (NULL);
+ xfer = (siz2 > mbuf_len(mp2)) ? mbuf_len(mp2) : siz2;
+ if (xfer > 0) {
+ NFSBCOPY(NFSMTOD(mp2, caddr_t), p, xfer);
+ NFSM_DATAP(mp2, xfer);
+ mbuf_setlen(mp2, mbuf_len(mp2) - xfer);
+ p += xfer;
+ siz2 -= xfer;
+ }
+ if (siz2 > 0)
+ mp2 = mbuf_next(mp2);
+ }
+ mbuf_setlen(nd->nd_md, siz);
+ nd->nd_md = mp2;
+ nd->nd_dpos = NFSMTOD(mp2, caddr_t);
+ }
+ return (retp);
+}
+
+/*
+ * Advance the position in the mbuf chain.
+ * If offs == 0, this is a no-op, but it is simpler to just return from
+ * here than check for offs > 0 for all calls to nfsm_advance.
+ * If left == -1, it should be calculated here.
+ */
+APPLESTATIC int
+nfsm_advance(struct nfsrv_descript *nd, int offs, int left)
+{
+ int error = 0;
+
+ if (offs == 0)
+ goto out;
+ /*
+ * A negative offs might indicate a corrupted mbuf chain and,
+ * as such, a printf is logged.
+ */
+ if (offs < 0) {
+ printf("nfsrv_advance: negative offs\n");
+ error = EBADRPC;
+ goto out;
+ }
+
+ /*
+ * If left == -1, calculate it here.
+ */
+ if (left == -1)
+ left = NFSMTOD(nd->nd_md, caddr_t) + mbuf_len(nd->nd_md) -
+ nd->nd_dpos;
+
+ /*
+ * Loop around, advancing over the mbuf data.
+ */
+ while (offs > left) {
+ offs -= left;
+ nd->nd_md = mbuf_next(nd->nd_md);
+ if (nd->nd_md == NULL) {
+ error = EBADRPC;
+ goto out;
+ }
+ left = mbuf_len(nd->nd_md);
+ nd->nd_dpos = NFSMTOD(nd->nd_md, caddr_t);
+ }
+ nd->nd_dpos += offs;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Copy a string into mbuf(s).
+ * Return the number of bytes output, including XDR overheads.
+ */
+APPLESTATIC int
+nfsm_strtom(struct nfsrv_descript *nd, const char *cp, int siz)
+{
+ mbuf_t m2;
+ int xfer, left;
+ mbuf_t m1;
+ int rem, bytesize;
+ u_int32_t *tl;
+ char *cp2;
+
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(siz);
+ rem = NFSM_RNDUP(siz) - siz;
+ bytesize = NFSX_UNSIGNED + siz + rem;
+ m2 = nd->nd_mb;
+ cp2 = nd->nd_bpos;
+ left = M_TRAILINGSPACE(m2);
+
+ /*
+ * Loop around copying the string to mbuf(s).
+ */
+ while (siz > 0) {
+ if (left == 0) {
+ if (siz > ncl_mbuf_mlen)
+ NFSMCLGET(m1, M_WAITOK);
+ else
+ NFSMGET(m1);
+ mbuf_setlen(m1, 0);
+ mbuf_setnext(m2, m1);
+ m2 = m1;
+ cp2 = NFSMTOD(m2, caddr_t);
+ left = M_TRAILINGSPACE(m2);
+ }
+ if (left >= siz)
+ xfer = siz;
+ else
+ xfer = left;
+ NFSBCOPY(cp, cp2, xfer);
+ cp += xfer;
+ mbuf_setlen(m2, mbuf_len(m2) + xfer);
+ siz -= xfer;
+ left -= xfer;
+ if (siz == 0 && rem) {
+ if (left < rem)
+ panic("nfsm_strtom");
+ NFSBZERO(cp2 + xfer, rem);
+ mbuf_setlen(m2, mbuf_len(m2) + rem);
+ }
+ }
+ nd->nd_mb = m2;
+ nd->nd_bpos = NFSMTOD(m2, caddr_t) + mbuf_len(m2);
+ return (bytesize);
+}
+
+/*
+ * Called once to initialize data structures...
+ */
+APPLESTATIC void
+newnfs_init(void)
+{
+ static int nfs_inited = 0;
+
+ if (nfs_inited)
+ return;
+ nfs_inited = 1;
+
+ newnfs_true = txdr_unsigned(TRUE);
+ newnfs_false = txdr_unsigned(FALSE);
+ newnfs_xdrneg1 = txdr_unsigned(-1);
+ nfscl_ticks = (hz * NFS_TICKINTVL + 500) / 1000;
+ if (nfscl_ticks < 1)
+ nfscl_ticks = 1;
+ NFSSETBOOTTIME(nfsboottime);
+
+ /*
+ * Initialize reply list and start timer
+ */
+ TAILQ_INIT(&nfsd_reqq);
+ NFS_TIMERINIT;
+}
+
+/*
+ * Put a file handle in an mbuf list.
+ * If the size argument == 0, just use the default size.
+ * set_true == 1 if there should be an newnfs_true prepended on the file handle.
+ * Return the number of bytes output, including XDR overhead.
+ */
+APPLESTATIC int
+nfsm_fhtom(struct nfsrv_descript *nd, u_int8_t *fhp, int size, int set_true)
+{
+ u_int32_t *tl;
+ u_int8_t *cp;
+ int fullsiz, rem, bytesize = 0;
+
+ if (size == 0)
+ size = NFSX_MYFH;
+ switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) {
+ case ND_NFSV2:
+ if (size > NFSX_V2FH)
+ panic("fh size > NFSX_V2FH for NFSv2");
+ NFSM_BUILD(cp, u_int8_t *, NFSX_V2FH);
+ NFSBCOPY(fhp, cp, size);
+ if (size < NFSX_V2FH)
+ NFSBZERO(cp + size, NFSX_V2FH - size);
+ bytesize = NFSX_V2FH;
+ break;
+ case ND_NFSV3:
+ case ND_NFSV4:
+ fullsiz = NFSM_RNDUP(size);
+ rem = fullsiz - size;
+ if (set_true) {
+ bytesize = 2 * NFSX_UNSIGNED + fullsiz;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_true;
+ } else {
+ bytesize = NFSX_UNSIGNED + fullsiz;
+ }
+ (void) nfsm_strtom(nd, fhp, size);
+ break;
+ }
+ return (bytesize);
+}
+
+/*
+ * This function compares two net addresses by family and returns TRUE
+ * if they are the same host.
+ * If there is any doubt, return FALSE.
+ * The AF_INET family is handled as a special case so that address mbufs
+ * don't need to be saved to store "struct in_addr", which is only 4 bytes.
+ */
+APPLESTATIC int
+nfsaddr_match(int family, union nethostaddr *haddr, NFSSOCKADDR_T nam)
+{
+ struct sockaddr_in *inetaddr;
+
+ switch (family) {
+ case AF_INET:
+ inetaddr = NFSSOCKADDR(nam, struct sockaddr_in *);
+ if (inetaddr->sin_family == AF_INET &&
+ inetaddr->sin_addr.s_addr == haddr->had_inet.s_addr)
+ return (1);
+ break;
+#ifdef INET6
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *inetaddr6;
+
+ inetaddr6 = NFSSOCKADDR(nam, struct sockaddr_in6 *);
+ /* XXX - should test sin6_scope_id ? */
+ if (inetaddr6->sin6_family == AF_INET6 &&
+ IN6_ARE_ADDR_EQUAL(&inetaddr6->sin6_addr,
+ &haddr->had_inet6))
+ return (1);
+ }
+ break;
+#endif
+ }
+ return (0);
+}
+
+/*
+ * Similar to the above, but takes to NFSSOCKADDR_T args.
+ */
+APPLESTATIC int
+nfsaddr2_match(NFSSOCKADDR_T nam1, NFSSOCKADDR_T nam2)
+{
+ struct sockaddr_in *addr1, *addr2;
+ struct sockaddr *inaddr;
+
+ inaddr = NFSSOCKADDR(nam1, struct sockaddr *);
+ switch (inaddr->sa_family) {
+ case AF_INET:
+ addr1 = NFSSOCKADDR(nam1, struct sockaddr_in *);
+ addr2 = NFSSOCKADDR(nam2, struct sockaddr_in *);
+ if (addr2->sin_family == AF_INET &&
+ addr1->sin_addr.s_addr == addr2->sin_addr.s_addr)
+ return (1);
+ break;
+#ifdef INET6
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *inet6addr1, *inet6addr2;
+
+ inet6addr1 = NFSSOCKADDR(nam1, struct sockaddr_in6 *);
+ inet6addr2 = NFSSOCKADDR(nam2, struct sockaddr_in6 *);
+ /* XXX - should test sin6_scope_id ? */
+ if (inet6addr2->sin6_family == AF_INET6 &&
+ IN6_ARE_ADDR_EQUAL(&inet6addr1->sin6_addr,
+ &inet6addr2->sin6_addr))
+ return (1);
+ }
+ break;
+#endif
+ }
+ return (0);
+}
+
+
+/*
+ * Trim the stuff already dissected off the mbuf list.
+ */
+APPLESTATIC void
+newnfs_trimleading(nd)
+ struct nfsrv_descript *nd;
+{
+ mbuf_t m, n;
+ int offs;
+
+ /*
+ * First, free up leading mbufs.
+ */
+ if (nd->nd_mrep != nd->nd_md) {
+ m = nd->nd_mrep;
+ while (mbuf_next(m) != nd->nd_md) {
+ if (mbuf_next(m) == NULL)
+ panic("nfsm trim leading");
+ m = mbuf_next(m);
+ }
+ mbuf_setnext(m, NULL);
+ mbuf_freem(nd->nd_mrep);
+ }
+ m = nd->nd_md;
+
+ /*
+ * Now, adjust this mbuf, based on nd_dpos.
+ */
+ offs = nd->nd_dpos - NFSMTOD(m, caddr_t);
+ if (offs == mbuf_len(m)) {
+ n = m;
+ m = mbuf_next(m);
+ if (m == NULL)
+ panic("nfsm trim leading2");
+ mbuf_setnext(n, NULL);
+ mbuf_freem(n);
+ } else if (offs > 0) {
+ mbuf_setlen(m, mbuf_len(m) - offs);
+ NFSM_DATAP(m, offs);
+ } else if (offs < 0)
+ panic("nfsm trimleading offs");
+ nd->nd_mrep = m;
+ nd->nd_md = m;
+ nd->nd_dpos = NFSMTOD(m, caddr_t);
+}
+
+/*
+ * Trim trailing data off the mbuf list being built.
+ */
+APPLESTATIC void
+newnfs_trimtrailing(nd, mb, bpos)
+ struct nfsrv_descript *nd;
+ mbuf_t mb;
+ caddr_t bpos;
+{
+
+ if (mbuf_next(mb)) {
+ mbuf_freem(mbuf_next(mb));
+ mbuf_setnext(mb, NULL);
+ }
+ mbuf_setlen(mb, bpos - NFSMTOD(mb, caddr_t));
+ nd->nd_mb = mb;
+ nd->nd_bpos = bpos;
+}
+
+/*
+ * Dissect a file handle on the client.
+ */
+APPLESTATIC int
+nfsm_getfh(struct nfsrv_descript *nd, struct nfsfh **nfhpp)
+{
+ u_int32_t *tl;
+ struct nfsfh *nfhp;
+ int error, len;
+
+ *nfhpp = NULL;
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if ((len = fxdr_unsigned(int, *tl)) <= 0 ||
+ len > NFSX_FHMAX) {
+ error = EBADRPC;
+ goto nfsmout;
+ }
+ } else
+ len = NFSX_V2FH;
+ nfhp = malloc(sizeof (struct nfsfh) + len,
+ M_NFSFH, M_WAITOK);
+ error = nfsrv_mtostr(nd, nfhp->nfh_fh, len);
+ if (error) {
+ free(nfhp, M_NFSFH);
+ goto nfsmout;
+ }
+ nfhp->nfh_len = len;
+ *nfhpp = nfhp;
+nfsmout:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Break down the nfsv4 acl.
+ * If the aclp == NULL or won't fit in an acl, just discard the acl info.
+ */
+APPLESTATIC int
+nfsrv_dissectacl(struct nfsrv_descript *nd, NFSACL_T *aclp, int *aclerrp,
+ int *aclsizep, __unused NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ int i, aclsize;
+ int acecnt, error = 0, aceerr = 0, acesize;
+
+ *aclerrp = 0;
+ if (aclp)
+ aclp->acl_cnt = 0;
+ /*
+ * Parse out the ace entries and expect them to conform to
+ * what can be supported by R/W/X bits.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ aclsize = NFSX_UNSIGNED;
+ acecnt = fxdr_unsigned(int, *tl);
+ if (acecnt > ACL_MAX_ENTRIES)
+ aceerr = NFSERR_ATTRNOTSUPP;
+ if (nfsrv_useacl == 0)
+ aceerr = NFSERR_ATTRNOTSUPP;
+ for (i = 0; i < acecnt; i++) {
+ if (aclp && !aceerr)
+ error = nfsrv_dissectace(nd, &aclp->acl_entry[i],
+ &aceerr, &acesize, p);
+ else
+ error = nfsrv_skipace(nd, &acesize);
+ if (error)
+ goto nfsmout;
+ aclsize += acesize;
+ }
+ if (aclp && !aceerr)
+ aclp->acl_cnt = acecnt;
+ if (aceerr)
+ *aclerrp = aceerr;
+ if (aclsizep)
+ *aclsizep = aclsize;
+nfsmout:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Skip over an NFSv4 ace entry. Just dissect the xdr and discard it.
+ */
+static int
+nfsrv_skipace(struct nfsrv_descript *nd, int *acesizep)
+{
+ u_int32_t *tl;
+ int error, len = 0;
+
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *(tl + 3));
+ error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+nfsmout:
+ *acesizep = NFSM_RNDUP(len) + (4 * NFSX_UNSIGNED);
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Get attribute bits from an mbuf list.
+ * Returns EBADRPC for a parsing error, 0 otherwise.
+ * If the clearinvalid flag is set, clear the bits not supported.
+ */
+APPLESTATIC int
+nfsrv_getattrbits(struct nfsrv_descript *nd, nfsattrbit_t *attrbitp, int *cntp,
+ int *retnotsupp)
+{
+ u_int32_t *tl;
+ int cnt, i, outcnt;
+ int error = 0;
+
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ cnt = fxdr_unsigned(int, *tl);
+ if (cnt < 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (cnt > NFSATTRBIT_MAXWORDS)
+ outcnt = NFSATTRBIT_MAXWORDS;
+ else
+ outcnt = cnt;
+ NFSZERO_ATTRBIT(attrbitp);
+ if (outcnt > 0) {
+ NFSM_DISSECT(tl, u_int32_t *, outcnt * NFSX_UNSIGNED);
+ for (i = 0; i < outcnt; i++)
+ attrbitp->bits[i] = fxdr_unsigned(u_int32_t, *tl++);
+ }
+ for (i = 0; i < (cnt - outcnt); i++) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (retnotsupp != NULL && *tl != 0)
+ *retnotsupp = NFSERR_ATTRNOTSUPP;
+ }
+ if (cntp)
+ *cntp = NFSX_UNSIGNED + (cnt * NFSX_UNSIGNED);
+nfsmout:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Get the attributes for V4.
+ * If the compare flag is true, test for any attribute changes,
+ * otherwise return the attribute values.
+ * These attributes cover fields in "struct vattr", "struct statfs",
+ * "struct nfsfsinfo", the file handle and the lease duration.
+ * The value of retcmpp is set to 1 if all attributes are the same,
+ * and 0 otherwise.
+ * Returns EBADRPC if it can't be parsed, 0 otherwise.
+ */
+APPLESTATIC int
+nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp,
+ struct nfsvattr *nap, struct nfsfh **nfhpp, fhandle_t *fhp, int fhsize,
+ struct nfsv3_pathconf *pc, struct statfs *sbp, struct nfsstatfs *sfp,
+ struct nfsfsinfo *fsp, NFSACL_T *aclp, int compare, int *retcmpp,
+ u_int32_t *leasep, u_int32_t *rderrp, NFSPROC_T *p, struct ucred *cred)
+{
+ u_int32_t *tl;
+ int i = 0, j, k, l = 0, m, bitpos, attrsum = 0;
+ int error, tfhsize, aceerr, attrsize, cnt, retnotsup;
+ u_char *cp, *cp2, namestr[NFSV4_SMALLSTR + 1];
+ nfsattrbit_t attrbits, retattrbits, checkattrbits;
+ struct nfsfh *tnfhp;
+ struct nfsreferral *refp;
+ u_quad_t tquad;
+ nfsquad_t tnfsquad;
+ struct timespec temptime;
+ uid_t uid;
+ gid_t gid;
+ u_int32_t freenum = 0, tuint;
+ u_int64_t uquad = 0, thyp, thyp2;
+#ifdef QUOTA
+ struct dqblk dqb;
+ uid_t savuid;
+#endif
+
+ CTASSERT(sizeof(ino_t) == sizeof(uint64_t));
+ if (compare) {
+ retnotsup = 0;
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, &retnotsup);
+ } else {
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ }
+ if (error)
+ goto nfsmout;
+
+ if (compare) {
+ *retcmpp = retnotsup;
+ } else {
+ /*
+ * Just set default values to some of the important ones.
+ */
+ if (nap != NULL) {
+ nap->na_type = VREG;
+ nap->na_mode = 0;
+ nap->na_rdev = (NFSDEV_T)0;
+ nap->na_mtime.tv_sec = 0;
+ nap->na_mtime.tv_nsec = 0;
+ nap->na_gen = 0;
+ nap->na_flags = 0;
+ nap->na_blocksize = NFS_FABLKSIZE;
+ }
+ if (sbp != NULL) {
+ sbp->f_bsize = NFS_FABLKSIZE;
+ sbp->f_blocks = 0;
+ sbp->f_bfree = 0;
+ sbp->f_bavail = 0;
+ sbp->f_files = 0;
+ sbp->f_ffree = 0;
+ }
+ if (fsp != NULL) {
+ fsp->fs_rtmax = 8192;
+ fsp->fs_rtpref = 8192;
+ fsp->fs_maxname = NFS_MAXNAMLEN;
+ fsp->fs_wtmax = 8192;
+ fsp->fs_wtpref = 8192;
+ fsp->fs_wtmult = NFS_FABLKSIZE;
+ fsp->fs_dtpref = 8192;
+ fsp->fs_maxfilesize = 0xffffffffffffffffull;
+ fsp->fs_timedelta.tv_sec = 0;
+ fsp->fs_timedelta.tv_nsec = 1;
+ fsp->fs_properties = (NFSV3_FSFLINK | NFSV3_FSFSYMLINK |
+ NFSV3_FSFHOMOGENEOUS | NFSV3_FSFCANSETTIME);
+ }
+ if (pc != NULL) {
+ pc->pc_linkmax = NFS_LINK_MAX;
+ pc->pc_namemax = NAME_MAX;
+ pc->pc_notrunc = 0;
+ pc->pc_chownrestricted = 0;
+ pc->pc_caseinsensitive = 0;
+ pc->pc_casepreserving = 1;
+ }
+ if (sfp != NULL) {
+ sfp->sf_ffiles = UINT64_MAX;
+ sfp->sf_tfiles = UINT64_MAX;
+ sfp->sf_afiles = UINT64_MAX;
+ sfp->sf_fbytes = UINT64_MAX;
+ sfp->sf_tbytes = UINT64_MAX;
+ sfp->sf_abytes = UINT64_MAX;
+ }
+ }
+
+ /*
+ * Loop around getting the attributes.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ attrsize = fxdr_unsigned(int, *tl);
+ for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
+ if (attrsum > attrsize) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (NFSISSET_ATTRBIT(&attrbits, bitpos))
+ switch (bitpos) {
+ case NFSATTRBIT_SUPPORTEDATTRS:
+ retnotsup = 0;
+ if (compare || nap == NULL)
+ error = nfsrv_getattrbits(nd, &retattrbits,
+ &cnt, &retnotsup);
+ else
+ error = nfsrv_getattrbits(nd, &nap->na_suppattr,
+ &cnt, &retnotsup);
+ if (error)
+ goto nfsmout;
+ if (compare && !(*retcmpp)) {
+ NFSSETSUPP_ATTRBIT(&checkattrbits, nd);
+
+ /* Some filesystem do not support NFSv4ACL */
+ if (nfsrv_useacl == 0 || nfs_supportsnfsv4acls(vp) == 0) {
+ NFSCLRBIT_ATTRBIT(&checkattrbits, NFSATTRBIT_ACL);
+ NFSCLRBIT_ATTRBIT(&checkattrbits, NFSATTRBIT_ACLSUPPORT);
+ }
+ if (!NFSEQUAL_ATTRBIT(&retattrbits, &checkattrbits)
+ || retnotsup)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += cnt;
+ break;
+ case NFSATTRBIT_TYPE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_type != nfsv34tov_type(*tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_type = nfsv34tov_type(*tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FHEXPIRETYPE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp)) {
+ if (fxdr_unsigned(int, *tl) !=
+ NFSV4FHTYPE_PERSISTENT)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CHANGE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_filerev != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_filerev = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SIZE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_size != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_size = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_LINKSUPPORT:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_properties & NFSV3_FSFLINK) {
+ if (*tl == newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ if (*tl == newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ }
+ } else if (fsp != NULL) {
+ if (*tl == newnfs_true)
+ fsp->fs_properties |= NFSV3_FSFLINK;
+ else
+ fsp->fs_properties &= ~NFSV3_FSFLINK;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_SYMLINKSUPPORT:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_properties & NFSV3_FSFSYMLINK) {
+ if (*tl == newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ if (*tl == newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ }
+ } else if (fsp != NULL) {
+ if (*tl == newnfs_true)
+ fsp->fs_properties |= NFSV3_FSFSYMLINK;
+ else
+ fsp->fs_properties &= ~NFSV3_FSFSYMLINK;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NAMEDATTR:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp)) {
+ if (*tl != newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FSID:
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ thyp = fxdr_hyper(tl);
+ tl += 2;
+ thyp2 = fxdr_hyper(tl);
+ if (compare) {
+ if (*retcmpp == 0) {
+ if (thyp != (u_int64_t)
+ vfs_statfs(vnode_mount(vp))->f_fsid.val[0] ||
+ thyp2 != (u_int64_t)
+ vfs_statfs(vnode_mount(vp))->f_fsid.val[1])
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_filesid[0] = thyp;
+ nap->na_filesid[1] = thyp2;
+ }
+ attrsum += (4 * NFSX_UNSIGNED);
+ break;
+ case NFSATTRBIT_UNIQUEHANDLES:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp)) {
+ if (*tl != newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_LEASETIME:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (fxdr_unsigned(int, *tl) != nfsrv_lease &&
+ !(*retcmpp))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (leasep != NULL) {
+ *leasep = fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_RDATTRERROR:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp))
+ *retcmpp = NFSERR_INVAL;
+ } else if (rderrp != NULL) {
+ *rderrp = fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_ACL:
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nfsrv_useacl && nfs_supportsnfsv4acls(vp)) {
+ NFSACL_T *naclp;
+
+ naclp = acl_alloc(M_WAITOK);
+ error = nfsrv_dissectacl(nd, naclp, &aceerr,
+ &cnt, p);
+ if (error) {
+ acl_free(naclp);
+ goto nfsmout;
+ }
+ if (aceerr || aclp == NULL ||
+ nfsrv_compareacl(aclp, naclp))
+ *retcmpp = NFSERR_NOTSAME;
+ acl_free(naclp);
+ } else {
+ error = nfsrv_dissectacl(nd, NULL, &aceerr,
+ &cnt, p);
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ }
+ }
+ } else {
+ if (vp != NULL && aclp != NULL)
+ error = nfsrv_dissectacl(nd, aclp, &aceerr,
+ &cnt, p);
+ else
+ error = nfsrv_dissectacl(nd, NULL, &aceerr,
+ &cnt, p);
+ if (error)
+ goto nfsmout;
+ }
+
+ attrsum += cnt;
+ break;
+ case NFSATTRBIT_ACLSUPPORT:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp)) {
+ if (nfsrv_useacl && nfs_supportsnfsv4acls(vp)) {
+ if (fxdr_unsigned(u_int32_t, *tl) !=
+ NFSV4ACE_SUPTYPES)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ }
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_ARCHIVE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CANSETTIME:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_properties & NFSV3_FSFCANSETTIME) {
+ if (*tl == newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ if (*tl == newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ }
+ } else if (fsp != NULL) {
+ if (*tl == newnfs_true)
+ fsp->fs_properties |= NFSV3_FSFCANSETTIME;
+ else
+ fsp->fs_properties &= ~NFSV3_FSFCANSETTIME;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CASEINSENSITIVE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (*tl != newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (pc != NULL) {
+ pc->pc_caseinsensitive =
+ fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CASEPRESERVING:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (*tl != newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (pc != NULL) {
+ pc->pc_casepreserving =
+ fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CHOWNRESTRICTED:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (*tl != newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (pc != NULL) {
+ pc->pc_chownrestricted =
+ fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FILEHANDLE:
+ error = nfsm_getfh(nd, &tnfhp);
+ if (error)
+ goto nfsmout;
+ tfhsize = tnfhp->nfh_len;
+ if (compare) {
+ if (!(*retcmpp) &&
+ !NFSRV_CMPFH(tnfhp->nfh_fh, tfhsize,
+ fhp, fhsize))
+ *retcmpp = NFSERR_NOTSAME;
+ free(tnfhp, M_NFSFH);
+ } else if (nfhpp != NULL) {
+ *nfhpp = tnfhp;
+ } else {
+ free(tnfhp, M_NFSFH);
+ }
+ attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(tfhsize));
+ break;
+ case NFSATTRBIT_FILEID:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ thyp = fxdr_hyper(tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_fileid != thyp)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL)
+ nap->na_fileid = thyp;
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESAVAIL:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_afiles != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_afiles = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESFREE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_ffiles != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_ffiles = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESTOTAL:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_tfiles != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_tfiles = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FSLOCATIONS:
+ error = nfsrv_getrefstr(nd, &cp, &cp2, &l, &m);
+ if (error)
+ goto nfsmout;
+ attrsum += l;
+ if (compare && !(*retcmpp)) {
+ refp = nfsv4root_getreferral(vp, NULL, 0);
+ if (refp != NULL) {
+ if (cp == NULL || cp2 == NULL ||
+ strcmp(cp, "/") ||
+ strcmp(cp2, refp->nfr_srvlist))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (m == 0) {
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ }
+ if (cp != NULL)
+ free(cp, M_NFSSTRING);
+ if (cp2 != NULL)
+ free(cp2, M_NFSSTRING);
+ break;
+ case NFSATTRBIT_HIDDEN:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_HOMOGENEOUS:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_properties &
+ NFSV3_FSFHOMOGENEOUS) {
+ if (*tl == newnfs_false)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ if (*tl == newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ }
+ } else if (fsp != NULL) {
+ if (*tl == newnfs_true)
+ fsp->fs_properties |= NFSV3_FSFHOMOGENEOUS;
+ else
+ fsp->fs_properties &= ~NFSV3_FSFHOMOGENEOUS;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXFILESIZE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ tnfsquad.qval = fxdr_hyper(tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ tquad = NFSRV_MAXFILESIZE;
+ if (tquad != tnfsquad.qval)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (fsp != NULL) {
+ fsp->fs_maxfilesize = tnfsquad.qval;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MAXLINK:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fxdr_unsigned(int, *tl) != NFS_LINK_MAX)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (pc != NULL) {
+ pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXNAME:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_maxname !=
+ fxdr_unsigned(u_int32_t, *tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else {
+ tuint = fxdr_unsigned(u_int32_t, *tl);
+ /*
+ * Some Linux NFSv4 servers report this
+ * as 0 or 4billion, so I'll set it to
+ * NFS_MAXNAMLEN. If a server actually creates
+ * a name longer than NFS_MAXNAMLEN, it will
+ * get an error back.
+ */
+ if (tuint == 0 || tuint > NFS_MAXNAMLEN)
+ tuint = NFS_MAXNAMLEN;
+ if (fsp != NULL)
+ fsp->fs_maxname = tuint;
+ if (pc != NULL)
+ pc->pc_namemax = tuint;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXREAD:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_rtmax != fxdr_unsigned(u_int32_t,
+ *(tl + 1)) || *tl != 0)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (fsp != NULL) {
+ fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *++tl);
+ fsp->fs_rtpref = fsp->fs_rtmax;
+ fsp->fs_dtpref = fsp->fs_rtpref;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MAXWRITE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (fsp->fs_wtmax != fxdr_unsigned(u_int32_t,
+ *(tl + 1)) || *tl != 0)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (fsp != NULL) {
+ fsp->fs_wtmax = fxdr_unsigned(int, *++tl);
+ fsp->fs_wtpref = fsp->fs_wtmax;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MIMETYPE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl);
+ attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(i));
+ error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
+ if (error)
+ goto nfsmout;
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ break;
+ case NFSATTRBIT_MODE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_mode != nfstov_mode(*tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_mode = nfstov_mode(*tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NOTRUNC:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (*tl != newnfs_true)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (pc != NULL) {
+ pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl);
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NUMLINKS:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ tuint = fxdr_unsigned(u_int32_t, *tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if ((u_int32_t)nap->na_nlink != tuint)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_nlink = tuint;
+ }
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_OWNER:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ j = fxdr_unsigned(int, *tl);
+ if (j < 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(j));
+ if (j > NFSV4_SMALLSTR)
+ cp = malloc(j + 1, M_NFSSTRING, M_WAITOK);
+ else
+ cp = namestr;
+ error = nfsrv_mtostr(nd, cp, j);
+ if (error) {
+ if (j > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ goto nfsmout;
+ }
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nfsv4_strtouid(nd, cp, j, &uid, p) ||
+ nap->na_uid != uid)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ if (nfsv4_strtouid(nd, cp, j, &uid, p))
+ nap->na_uid = nfsrv_defaultuid;
+ else
+ nap->na_uid = uid;
+ }
+ if (j > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ break;
+ case NFSATTRBIT_OWNERGROUP:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ j = fxdr_unsigned(int, *tl);
+ if (j < 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(j));
+ if (j > NFSV4_SMALLSTR)
+ cp = malloc(j + 1, M_NFSSTRING, M_WAITOK);
+ else
+ cp = namestr;
+ error = nfsrv_mtostr(nd, cp, j);
+ if (error) {
+ if (j > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ goto nfsmout;
+ }
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nfsv4_strtogid(nd, cp, j, &gid, p) ||
+ nap->na_gid != gid)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ if (nfsv4_strtogid(nd, cp, j, &gid, p))
+ nap->na_gid = nfsrv_defaultgid;
+ else
+ nap->na_gid = gid;
+ }
+ if (j > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ break;
+ case NFSATTRBIT_QUOTAHARD:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (sbp != NULL) {
+ if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA, 0))
+ freenum = sbp->f_bfree;
+ else
+ freenum = sbp->f_bavail;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(vnode_mount(vp),QCMD(Q_GETQUOTA,
+ USRQUOTA), cred->cr_uid, (caddr_t)&dqb))
+ freenum = min(dqb.dqb_bhardlimit, freenum);
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
+ }
+ if (compare && !(*retcmpp)) {
+ if (uquad != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_QUOTASOFT:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (sbp != NULL) {
+ if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA, 0))
+ freenum = sbp->f_bfree;
+ else
+ freenum = sbp->f_bavail;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(vnode_mount(vp),QCMD(Q_GETQUOTA,
+ USRQUOTA), cred->cr_uid, (caddr_t)&dqb))
+ freenum = min(dqb.dqb_bsoftlimit, freenum);
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
+ }
+ if (compare && !(*retcmpp)) {
+ if (uquad != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_QUOTAUSED:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (sbp != NULL) {
+ freenum = 0;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(vnode_mount(vp),QCMD(Q_GETQUOTA,
+ USRQUOTA), cred->cr_uid, (caddr_t)&dqb))
+ freenum = dqb.dqb_curblocks;
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
+ }
+ if (compare && !(*retcmpp)) {
+ if (uquad != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_RAWDEV:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4SPECDATA);
+ j = fxdr_unsigned(int, *tl++);
+ k = fxdr_unsigned(int, *tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (nap->na_rdev != NFSMAKEDEV(j, k))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_rdev = NFSMAKEDEV(j, k);
+ }
+ attrsum += NFSX_V4SPECDATA;
+ break;
+ case NFSATTRBIT_SPACEAVAIL:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_abytes != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_abytes = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACEFREE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_fbytes != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_fbytes = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACETOTAL:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ if (compare) {
+ if (!(*retcmpp) &&
+ sfp->sf_tbytes != fxdr_hyper(tl))
+ *retcmpp = NFSERR_NOTSAME;
+ } else if (sfp != NULL) {
+ sfp->sf_tbytes = fxdr_hyper(tl);
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACEUSED:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ thyp = fxdr_hyper(tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if ((u_int64_t)nap->na_bytes != thyp)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_bytes = thyp;
+ }
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SYSTEM:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ attrsum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_TIMEACCESS:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ fxdr_nfsv4time(tl, &temptime);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (!NFS_CMPTIME(temptime, nap->na_atime))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_atime = temptime;
+ }
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEACCESSSET:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ attrsum += NFSX_UNSIGNED;
+ i = fxdr_unsigned(int, *tl);
+ if (i == NFSV4SATTRTIME_TOCLIENT) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ attrsum += NFSX_V4TIME;
+ }
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_INVAL;
+ break;
+ case NFSATTRBIT_TIMEBACKUP:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMECREATE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEDELTA:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ if (fsp != NULL) {
+ if (compare) {
+ if (!(*retcmpp)) {
+ if ((u_int32_t)fsp->fs_timedelta.tv_sec !=
+ fxdr_unsigned(u_int32_t, *(tl + 1)) ||
+ (u_int32_t)fsp->fs_timedelta.tv_nsec !=
+ (fxdr_unsigned(u_int32_t, *(tl + 2)) %
+ 1000000000) ||
+ *tl != 0)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else {
+ fxdr_nfsv4time(tl, &fsp->fs_timedelta);
+ }
+ }
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMETADATA:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ fxdr_nfsv4time(tl, &temptime);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (!NFS_CMPTIME(temptime, nap->na_ctime))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_ctime = temptime;
+ }
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMODIFY:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ fxdr_nfsv4time(tl, &temptime);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (!NFS_CMPTIME(temptime, nap->na_mtime))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL) {
+ nap->na_mtime = temptime;
+ }
+ attrsum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMODIFYSET:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ attrsum += NFSX_UNSIGNED;
+ i = fxdr_unsigned(int, *tl);
+ if (i == NFSV4SATTRTIME_TOCLIENT) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
+ attrsum += NFSX_V4TIME;
+ }
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_INVAL;
+ break;
+ case NFSATTRBIT_MOUNTEDONFILEID:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ thyp = fxdr_hyper(tl);
+ if (compare) {
+ if (!(*retcmpp)) {
+ if (!vp || !nfsrv_atroot(vp, &thyp2))
+ thyp2 = nap->na_fileid;
+ if (thyp2 != thyp)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ } else if (nap != NULL)
+ nap->na_mntonfileno = thyp;
+ attrsum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SUPPATTREXCLCREAT:
+ retnotsup = 0;
+ error = nfsrv_getattrbits(nd, &retattrbits,
+ &cnt, &retnotsup);
+ if (error)
+ goto nfsmout;
+ if (compare && !(*retcmpp)) {
+ NFSSETSUPP_ATTRBIT(&checkattrbits, nd);
+ NFSCLRNOTSETABLE_ATTRBIT(&checkattrbits, nd);
+ NFSCLRBIT_ATTRBIT(&checkattrbits,
+ NFSATTRBIT_TIMEACCESSSET);
+ if (!NFSEQUAL_ATTRBIT(&retattrbits, &checkattrbits)
+ || retnotsup)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ attrsum += cnt;
+ break;
+ case NFSATTRBIT_FSLAYOUTTYPE:
+ case NFSATTRBIT_LAYOUTTYPE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ attrsum += NFSX_UNSIGNED;
+ i = fxdr_unsigned(int, *tl);
+ if (i > 0) {
+ NFSM_DISSECT(tl, u_int32_t *, i *
+ NFSX_UNSIGNED);
+ attrsum += i * NFSX_UNSIGNED;
+ j = fxdr_unsigned(int, *tl);
+ if (i == 1 && compare && !(*retcmpp) &&
+ (((nfsrv_doflexfile != 0 ||
+ nfsrv_maxpnfsmirror > 1) &&
+ j != NFSLAYOUT_FLEXFILE) ||
+ (nfsrv_doflexfile == 0 &&
+ j != NFSLAYOUT_NFSV4_1_FILES)))
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ if (nfsrv_devidcnt == 0) {
+ if (compare && !(*retcmpp) && i > 0)
+ *retcmpp = NFSERR_NOTSAME;
+ } else {
+ if (compare && !(*retcmpp) && i != 1)
+ *retcmpp = NFSERR_NOTSAME;
+ }
+ break;
+ case NFSATTRBIT_LAYOUTALIGNMENT:
+ case NFSATTRBIT_LAYOUTBLKSIZE:
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ attrsum += NFSX_UNSIGNED;
+ i = fxdr_unsigned(int, *tl);
+ if (compare && !(*retcmpp) && i != NFS_SRVMAXIO)
+ *retcmpp = NFSERR_NOTSAME;
+ break;
+ default:
+ printf("EEK! nfsv4_loadattr unknown attr=%d\n",
+ bitpos);
+ if (compare && !(*retcmpp))
+ *retcmpp = NFSERR_ATTRNOTSUPP;
+ /*
+ * and get out of the loop, since we can't parse
+ * the unknown attrbute data.
+ */
+ bitpos = NFSATTRBIT_MAX;
+ break;
+ }
+ }
+
+ /*
+ * some clients pad the attrlist, so we need to skip over the
+ * padding.
+ */
+ if (attrsum > attrsize) {
+ error = NFSERR_BADXDR;
+ } else {
+ attrsize = NFSM_RNDUP(attrsize);
+ if (attrsum < attrsize)
+ error = nfsm_advance(nd, attrsize - attrsum, -1);
+ }
+nfsmout:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Implement sleep locks for newnfs. The nfslock_usecnt allows for a
+ * shared lock and the NFSXXX_LOCK flag permits an exclusive lock.
+ * The first argument is a pointer to an nfsv4lock structure.
+ * The second argument is 1 iff a blocking lock is wanted.
+ * If this argument is 0, the call waits until no thread either wants nor
+ * holds an exclusive lock.
+ * It returns 1 if the lock was acquired, 0 otherwise.
+ * If several processes call this function concurrently wanting the exclusive
+ * lock, one will get the lock and the rest will return without getting the
+ * lock. (If the caller must have the lock, it simply calls this function in a
+ * loop until the function returns 1 to indicate the lock was acquired.)
+ * Any usecnt must be decremented by calling nfsv4_relref() before
+ * calling nfsv4_lock(). It was done this way, so nfsv4_lock() could
+ * be called in a loop.
+ * The isleptp argument is set to indicate if the call slept, iff not NULL
+ * and the mp argument indicates to check for a forced dismount, iff not
+ * NULL.
+ */
+APPLESTATIC int
+nfsv4_lock(struct nfsv4lock *lp, int iwantlock, int *isleptp,
+ void *mutex, struct mount *mp)
+{
+
+ if (isleptp)
+ *isleptp = 0;
+ /*
+ * If a lock is wanted, loop around until the lock is acquired by
+ * someone and then released. If I want the lock, try to acquire it.
+ * For a lock to be issued, no lock must be in force and the usecnt
+ * must be zero.
+ */
+ if (iwantlock) {
+ if (!(lp->nfslock_lock & NFSV4LOCK_LOCK) &&
+ lp->nfslock_usecnt == 0) {
+ lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
+ lp->nfslock_lock |= NFSV4LOCK_LOCK;
+ return (1);
+ }
+ lp->nfslock_lock |= NFSV4LOCK_LOCKWANTED;
+ }
+ while (lp->nfslock_lock & (NFSV4LOCK_LOCK | NFSV4LOCK_LOCKWANTED)) {
+ if (mp != NULL && NFSCL_FORCEDISM(mp)) {
+ lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
+ return (0);
+ }
+ lp->nfslock_lock |= NFSV4LOCK_WANTED;
+ if (isleptp)
+ *isleptp = 1;
+ (void) nfsmsleep(&lp->nfslock_lock, mutex,
+ PZERO - 1, "nfsv4lck", NULL);
+ if (iwantlock && !(lp->nfslock_lock & NFSV4LOCK_LOCK) &&
+ lp->nfslock_usecnt == 0) {
+ lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
+ lp->nfslock_lock |= NFSV4LOCK_LOCK;
+ return (1);
+ }
+ }
+ return (0);
+}
+
+/*
+ * Release the lock acquired by nfsv4_lock().
+ * The second argument is set to 1 to indicate the nfslock_usecnt should be
+ * incremented, as well.
+ */
+APPLESTATIC void
+nfsv4_unlock(struct nfsv4lock *lp, int incref)
+{
+
+ lp->nfslock_lock &= ~NFSV4LOCK_LOCK;
+ if (incref)
+ lp->nfslock_usecnt++;
+ nfsv4_wanted(lp);
+}
+
+/*
+ * Release a reference cnt.
+ */
+APPLESTATIC void
+nfsv4_relref(struct nfsv4lock *lp)
+{
+
+ if (lp->nfslock_usecnt <= 0)
+ panic("nfsv4root ref cnt");
+ lp->nfslock_usecnt--;
+ if (lp->nfslock_usecnt == 0)
+ nfsv4_wanted(lp);
+}
+
+/*
+ * Get a reference cnt.
+ * This function will wait for any exclusive lock to be released, but will
+ * not wait for threads that want the exclusive lock. If priority needs
+ * to be given to threads that need the exclusive lock, a call to nfsv4_lock()
+ * with the 2nd argument == 0 should be done before calling nfsv4_getref().
+ * If the mp argument is not NULL, check for NFSCL_FORCEDISM() being set and
+ * return without getting a refcnt for that case.
+ */
+APPLESTATIC void
+nfsv4_getref(struct nfsv4lock *lp, int *isleptp, void *mutex,
+ struct mount *mp)
+{
+
+ if (isleptp)
+ *isleptp = 0;
+
+ /*
+ * Wait for a lock held.
+ */
+ while (lp->nfslock_lock & NFSV4LOCK_LOCK) {
+ if (mp != NULL && NFSCL_FORCEDISM(mp))
+ return;
+ lp->nfslock_lock |= NFSV4LOCK_WANTED;
+ if (isleptp)
+ *isleptp = 1;
+ (void) nfsmsleep(&lp->nfslock_lock, mutex,
+ PZERO - 1, "nfsv4gr", NULL);
+ }
+ if (mp != NULL && NFSCL_FORCEDISM(mp))
+ return;
+
+ lp->nfslock_usecnt++;
+}
+
+/*
+ * Get a reference as above, but return failure instead of sleeping if
+ * an exclusive lock is held.
+ */
+APPLESTATIC int
+nfsv4_getref_nonblock(struct nfsv4lock *lp)
+{
+
+ if ((lp->nfslock_lock & NFSV4LOCK_LOCK) != 0)
+ return (0);
+
+ lp->nfslock_usecnt++;
+ return (1);
+}
+
+/*
+ * Test for a lock. Return 1 if locked, 0 otherwise.
+ */
+APPLESTATIC int
+nfsv4_testlock(struct nfsv4lock *lp)
+{
+
+ if ((lp->nfslock_lock & NFSV4LOCK_LOCK) == 0 &&
+ lp->nfslock_usecnt == 0)
+ return (0);
+ return (1);
+}
+
+/*
+ * Wake up anyone sleeping, waiting for this lock.
+ */
+static void
+nfsv4_wanted(struct nfsv4lock *lp)
+{
+
+ if (lp->nfslock_lock & NFSV4LOCK_WANTED) {
+ lp->nfslock_lock &= ~NFSV4LOCK_WANTED;
+ wakeup((caddr_t)&lp->nfslock_lock);
+ }
+}
+
+/*
+ * Copy a string from an mbuf list into a character array.
+ * Return EBADRPC if there is an mbuf error,
+ * 0 otherwise.
+ */
+APPLESTATIC int
+nfsrv_mtostr(struct nfsrv_descript *nd, char *str, int siz)
+{
+ char *cp;
+ int xfer, len;
+ mbuf_t mp;
+ int rem, error = 0;
+
+ mp = nd->nd_md;
+ cp = nd->nd_dpos;
+ len = NFSMTOD(mp, caddr_t) + mbuf_len(mp) - cp;
+ rem = NFSM_RNDUP(siz) - siz;
+ while (siz > 0) {
+ if (len > siz)
+ xfer = siz;
+ else
+ xfer = len;
+ NFSBCOPY(cp, str, xfer);
+ str += xfer;
+ siz -= xfer;
+ if (siz > 0) {
+ mp = mbuf_next(mp);
+ if (mp == NULL) {
+ error = EBADRPC;
+ goto out;
+ }
+ cp = NFSMTOD(mp, caddr_t);
+ len = mbuf_len(mp);
+ } else {
+ cp += xfer;
+ len -= xfer;
+ }
+ }
+ *str = '\0';
+ nd->nd_dpos = cp;
+ nd->nd_md = mp;
+ if (rem > 0) {
+ if (len < rem)
+ error = nfsm_advance(nd, rem, len);
+ else
+ nd->nd_dpos += rem;
+ }
+
+out:
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Fill in the attributes as marked by the bitmap (V4).
+ */
+APPLESTATIC int
+nfsv4_fillattr(struct nfsrv_descript *nd, struct mount *mp, vnode_t vp,
+ NFSACL_T *saclp, struct vattr *vap, fhandle_t *fhp, int rderror,
+ nfsattrbit_t *attrbitp, struct ucred *cred, NFSPROC_T *p, int isdgram,
+ int reterr, int supports_nfsv4acls, int at_root, uint64_t mounted_on_fileno,
+ struct statfs *pnfssf)
+{
+ int bitpos, retnum = 0;
+ u_int32_t *tl;
+ int siz, prefixnum, error;
+ u_char *cp, namestr[NFSV4_SMALLSTR];
+ nfsattrbit_t attrbits, retbits;
+ nfsattrbit_t *retbitp = &retbits;
+ u_int32_t freenum, *retnump;
+ u_int64_t uquad;
+ struct statfs *fs;
+ struct nfsfsinfo fsinf;
+ struct timespec temptime;
+ NFSACL_T *aclp, *naclp = NULL;
+#ifdef QUOTA
+ struct dqblk dqb;
+ uid_t savuid;
+#endif
+
+ /*
+ * First, set the bits that can be filled and get fsinfo.
+ */
+ NFSSET_ATTRBIT(retbitp, attrbitp);
+ /*
+ * If both p and cred are NULL, it is a client side setattr call.
+ * If both p and cred are not NULL, it is a server side reply call.
+ * If p is not NULL and cred is NULL, it is a client side callback
+ * reply call.
+ */
+ if (p == NULL && cred == NULL) {
+ NFSCLRNOTSETABLE_ATTRBIT(retbitp, nd);
+ aclp = saclp;
+ } else {
+ NFSCLRNOTFILLABLE_ATTRBIT(retbitp, nd);
+ naclp = acl_alloc(M_WAITOK);
+ aclp = naclp;
+ }
+ nfsvno_getfs(&fsinf, isdgram);
+#ifndef APPLE
+ /*
+ * Get the VFS_STATFS(), since some attributes need them.
+ */
+ fs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
+ if (NFSISSETSTATFS_ATTRBIT(retbitp)) {
+ error = VFS_STATFS(mp, fs);
+ if (error != 0) {
+ if (reterr) {
+ nd->nd_repstat = NFSERR_ACCES;
+ free(fs, M_STATFS);
+ return (0);
+ }
+ NFSCLRSTATFS_ATTRBIT(retbitp);
+ }
+ }
+#endif
+
+ /*
+ * And the NFSv4 ACL...
+ */
+ if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_ACLSUPPORT) &&
+ (nfsrv_useacl == 0 || ((cred != NULL || p != NULL) &&
+ supports_nfsv4acls == 0))) {
+ NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACLSUPPORT);
+ }
+ if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_ACL)) {
+ if (nfsrv_useacl == 0 || ((cred != NULL || p != NULL) &&
+ supports_nfsv4acls == 0)) {
+ NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACL);
+ } else if (naclp != NULL) {
+ if (NFSVOPLOCK(vp, LK_SHARED) == 0) {
+ error = VOP_ACCESSX(vp, VREAD_ACL, cred, p);
+ if (error == 0)
+ error = VOP_GETACL(vp, ACL_TYPE_NFS4,
+ naclp, cred, p);
+ NFSVOPUNLOCK(vp, 0);
+ } else
+ error = NFSERR_PERM;
+ if (error != 0) {
+ if (reterr) {
+ nd->nd_repstat = NFSERR_ACCES;
+ free(fs, M_STATFS);
+ return (0);
+ }
+ NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACL);
+ }
+ }
+ }
+
+ /*
+ * Put out the attribute bitmap for the ones being filled in
+ * and get the field for the number of attributes returned.
+ */
+ prefixnum = nfsrv_putattrbit(nd, retbitp);
+ NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED);
+ prefixnum += NFSX_UNSIGNED;
+
+ /*
+ * Now, loop around filling in the attributes for each bit set.
+ */
+ for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
+ if (NFSISSET_ATTRBIT(retbitp, bitpos)) {
+ switch (bitpos) {
+ case NFSATTRBIT_SUPPORTEDATTRS:
+ NFSSETSUPP_ATTRBIT(&attrbits, nd);
+ if (nfsrv_useacl == 0 || ((cred != NULL || p != NULL)
+ && supports_nfsv4acls == 0)) {
+ NFSCLRBIT_ATTRBIT(&attrbits,NFSATTRBIT_ACLSUPPORT);
+ NFSCLRBIT_ATTRBIT(&attrbits,NFSATTRBIT_ACL);
+ }
+ retnum += nfsrv_putattrbit(nd, &attrbits);
+ break;
+ case NFSATTRBIT_TYPE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = vtonfsv34_type(vap->va_type);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FHEXPIRETYPE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4FHTYPE_PERSISTENT);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CHANGE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ txdr_hyper(vap->va_filerev, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SIZE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ txdr_hyper(vap->va_size, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_LINKSUPPORT:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (fsinf.fs_properties & NFSV3FSINFO_LINK)
+ *tl = newnfs_true;
+ else
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_SYMLINKSUPPORT:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (fsinf.fs_properties & NFSV3FSINFO_SYMLINK)
+ *tl = newnfs_true;
+ else
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NAMEDATTR:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FSID:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID);
+ *tl++ = 0;
+ *tl++ = txdr_unsigned(mp->mnt_stat.f_fsid.val[0]);
+ *tl++ = 0;
+ *tl = txdr_unsigned(mp->mnt_stat.f_fsid.val[1]);
+ retnum += NFSX_V4FSID;
+ break;
+ case NFSATTRBIT_UNIQUEHANDLES:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_true;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_LEASETIME:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(nfsrv_lease);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_RDATTRERROR:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(rderror);
+ retnum += NFSX_UNSIGNED;
+ break;
+ /*
+ * Recommended Attributes. (Only the supported ones.)
+ */
+ case NFSATTRBIT_ACL:
+ retnum += nfsrv_buildacl(nd, aclp, vnode_vtype(vp), p);
+ break;
+ case NFSATTRBIT_ACLSUPPORT:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4ACE_SUPTYPES);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CANSETTIME:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (fsinf.fs_properties & NFSV3FSINFO_CANSETTIME)
+ *tl = newnfs_true;
+ else
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CASEINSENSITIVE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CASEPRESERVING:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_true;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_CHOWNRESTRICTED:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_true;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_FILEHANDLE:
+ retnum += nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
+ break;
+ case NFSATTRBIT_FILEID:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ uquad = vap->va_fileid;
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESAVAIL:
+ /*
+ * Check quota and use min(quota, f_ffree).
+ */
+ freenum = fs->f_ffree;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
+ cred->cr_uid, (caddr_t)&dqb))
+ freenum = min(dqb.dqb_isoftlimit-dqb.dqb_curinodes,
+ freenum);
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ *tl++ = 0;
+ *tl = txdr_unsigned(freenum);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESFREE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ *tl++ = 0;
+ *tl = txdr_unsigned(fs->f_ffree);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FILESTOTAL:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ *tl++ = 0;
+ *tl = txdr_unsigned(fs->f_files);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_FSLOCATIONS:
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = 0;
+ *tl = 0;
+ retnum += 2 * NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_HOMOGENEOUS:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (fsinf.fs_properties & NFSV3FSINFO_HOMOGENEOUS)
+ *tl = newnfs_true;
+ else
+ *tl = newnfs_false;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXFILESIZE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ uquad = NFSRV_MAXFILESIZE;
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MAXLINK:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFS_LINK_MAX);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXNAME:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFS_MAXNAMLEN);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_MAXREAD:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ *tl++ = 0;
+ *tl = txdr_unsigned(fsinf.fs_rtmax);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MAXWRITE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ *tl++ = 0;
+ *tl = txdr_unsigned(fsinf.fs_wtmax);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_MODE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = vtonfsv34_mode(vap->va_mode);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NOTRUNC:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_true;
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_NUMLINKS:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(vap->va_nlink);
+ retnum += NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_OWNER:
+ cp = namestr;
+ nfsv4_uidtostr(vap->va_uid, &cp, &siz, p);
+ retnum += nfsm_strtom(nd, cp, siz);
+ if (cp != namestr)
+ free(cp, M_NFSSTRING);
+ break;
+ case NFSATTRBIT_OWNERGROUP:
+ cp = namestr;
+ nfsv4_gidtostr(vap->va_gid, &cp, &siz, p);
+ retnum += nfsm_strtom(nd, cp, siz);
+ if (cp != namestr)
+ free(cp, M_NFSSTRING);
+ break;
+ case NFSATTRBIT_QUOTAHARD:
+ if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA, 0))
+ freenum = fs->f_bfree;
+ else
+ freenum = fs->f_bavail;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
+ cred->cr_uid, (caddr_t)&dqb))
+ freenum = min(dqb.dqb_bhardlimit, freenum);
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_QUOTASOFT:
+ if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA, 0))
+ freenum = fs->f_bfree;
+ else
+ freenum = fs->f_bavail;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
+ cred->cr_uid, (caddr_t)&dqb))
+ freenum = min(dqb.dqb_bsoftlimit, freenum);
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_QUOTAUSED:
+ freenum = 0;
+#ifdef QUOTA
+ /*
+ * ufs_quotactl() insists that the uid argument
+ * equal p_ruid for non-root quota access, so
+ * we'll just make sure that's the case.
+ */
+ savuid = p->p_cred->p_ruid;
+ p->p_cred->p_ruid = cred->cr_uid;
+ if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
+ cred->cr_uid, (caddr_t)&dqb))
+ freenum = dqb.dqb_curblocks;
+ p->p_cred->p_ruid = savuid;
+#endif /* QUOTA */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ uquad = (u_int64_t)freenum;
+ NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_RAWDEV:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4SPECDATA);
+ *tl++ = txdr_unsigned(NFSMAJOR(vap->va_rdev));
+ *tl = txdr_unsigned(NFSMINOR(vap->va_rdev));
+ retnum += NFSX_V4SPECDATA;
+ break;
+ case NFSATTRBIT_SPACEAVAIL:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ if (priv_check_cred(cred, PRIV_VFS_BLOCKRESERVE, 0)) {
+ if (pnfssf != NULL)
+ uquad = (u_int64_t)pnfssf->f_bfree;
+ else
+ uquad = (u_int64_t)fs->f_bfree;
+ } else {
+ if (pnfssf != NULL)
+ uquad = (u_int64_t)pnfssf->f_bavail;
+ else
+ uquad = (u_int64_t)fs->f_bavail;
+ }
+ if (pnfssf != NULL)
+ uquad *= pnfssf->f_bsize;
+ else
+ uquad *= fs->f_bsize;
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACEFREE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ if (pnfssf != NULL) {
+ uquad = (u_int64_t)pnfssf->f_bfree;
+ uquad *= pnfssf->f_bsize;
+ } else {
+ uquad = (u_int64_t)fs->f_bfree;
+ uquad *= fs->f_bsize;
+ }
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACETOTAL:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ if (pnfssf != NULL) {
+ uquad = (u_int64_t)pnfssf->f_blocks;
+ uquad *= pnfssf->f_bsize;
+ } else {
+ uquad = (u_int64_t)fs->f_blocks;
+ uquad *= fs->f_bsize;
+ }
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SPACEUSED:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ txdr_hyper(vap->va_bytes, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_TIMEACCESS:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
+ txdr_nfsv4time(&vap->va_atime, tl);
+ retnum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEACCESSSET:
+ if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4SETTIME);
+ *tl++ = txdr_unsigned(NFSV4SATTRTIME_TOCLIENT);
+ txdr_nfsv4time(&vap->va_atime, tl);
+ retnum += NFSX_V4SETTIME;
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4SATTRTIME_TOSERVER);
+ retnum += NFSX_UNSIGNED;
+ }
+ break;
+ case NFSATTRBIT_TIMEDELTA:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
+ temptime.tv_sec = 0;
+ temptime.tv_nsec = 1000000000 / hz;
+ txdr_nfsv4time(&temptime, tl);
+ retnum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMETADATA:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
+ txdr_nfsv4time(&vap->va_ctime, tl);
+ retnum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMODIFY:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
+ txdr_nfsv4time(&vap->va_mtime, tl);
+ retnum += NFSX_V4TIME;
+ break;
+ case NFSATTRBIT_TIMEMODIFYSET:
+ if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_V4SETTIME);
+ *tl++ = txdr_unsigned(NFSV4SATTRTIME_TOCLIENT);
+ txdr_nfsv4time(&vap->va_mtime, tl);
+ retnum += NFSX_V4SETTIME;
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4SATTRTIME_TOSERVER);
+ retnum += NFSX_UNSIGNED;
+ }
+ break;
+ case NFSATTRBIT_MOUNTEDONFILEID:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
+ if (at_root != 0)
+ uquad = mounted_on_fileno;
+ else
+ uquad = vap->va_fileid;
+ txdr_hyper(uquad, tl);
+ retnum += NFSX_HYPER;
+ break;
+ case NFSATTRBIT_SUPPATTREXCLCREAT:
+ NFSSETSUPP_ATTRBIT(&attrbits, nd);
+ NFSCLRNOTSETABLE_ATTRBIT(&attrbits, nd);
+ NFSCLRBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET);
+ retnum += nfsrv_putattrbit(nd, &attrbits);
+ break;
+ case NFSATTRBIT_FSLAYOUTTYPE:
+ case NFSATTRBIT_LAYOUTTYPE:
+ if (nfsrv_devidcnt == 0)
+ siz = 1;
+ else
+ siz = 2;
+ if (siz == 2) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(1); /* One entry. */
+ if (nfsrv_doflexfile != 0 ||
+ nfsrv_maxpnfsmirror > 1)
+ *tl = txdr_unsigned(NFSLAYOUT_FLEXFILE);
+ else
+ *tl = txdr_unsigned(
+ NFSLAYOUT_NFSV4_1_FILES);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = 0;
+ }
+ retnum += siz * NFSX_UNSIGNED;
+ break;
+ case NFSATTRBIT_LAYOUTALIGNMENT:
+ case NFSATTRBIT_LAYOUTBLKSIZE:
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFS_SRVMAXIO);
+ retnum += NFSX_UNSIGNED;
+ break;
+ default:
+ printf("EEK! Bad V4 attribute bitpos=%d\n", bitpos);
+ }
+ }
+ }
+ if (naclp != NULL)
+ acl_free(naclp);
+ free(fs, M_STATFS);
+ *retnump = txdr_unsigned(retnum);
+ return (retnum + prefixnum);
+}
+
+/*
+ * Put the attribute bits onto an mbuf list.
+ * Return the number of bytes of output generated.
+ */
+APPLESTATIC int
+nfsrv_putattrbit(struct nfsrv_descript *nd, nfsattrbit_t *attrbitp)
+{
+ u_int32_t *tl;
+ int cnt, i, bytesize;
+
+ for (cnt = NFSATTRBIT_MAXWORDS; cnt > 0; cnt--)
+ if (attrbitp->bits[cnt - 1])
+ break;
+ bytesize = (cnt + 1) * NFSX_UNSIGNED;
+ NFSM_BUILD(tl, u_int32_t *, bytesize);
+ *tl++ = txdr_unsigned(cnt);
+ for (i = 0; i < cnt; i++)
+ *tl++ = txdr_unsigned(attrbitp->bits[i]);
+ return (bytesize);
+}
+
+/*
+ * Convert a uid to a string.
+ * If the lookup fails, just output the digits.
+ * uid - the user id
+ * cpp - points to a buffer of size NFSV4_SMALLSTR
+ * (malloc a larger one, as required)
+ * retlenp - pointer to length to be returned
+ */
+APPLESTATIC void
+nfsv4_uidtostr(uid_t uid, u_char **cpp, int *retlenp, NFSPROC_T *p)
+{
+ int i;
+ struct nfsusrgrp *usrp;
+ u_char *cp = *cpp;
+ uid_t tmp;
+ int cnt, hasampersand, len = NFSV4_SMALLSTR, ret;
+ struct nfsrv_lughash *hp;
+
+ cnt = 0;
+tryagain:
+ if (nfsrv_dnsnamelen > 0 && !nfs_enable_uidtostring) {
+ /*
+ * Always map nfsrv_defaultuid to "nobody".
+ */
+ if (uid == nfsrv_defaultuid) {
+ i = nfsrv_dnsnamelen + 7;
+ if (i > len) {
+ if (len > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ cp = malloc(i, M_NFSSTRING, M_WAITOK);
+ *cpp = cp;
+ len = i;
+ goto tryagain;
+ }
+ *retlenp = i;
+ NFSBCOPY("nobody@", cp, 7);
+ cp += 7;
+ NFSBCOPY(nfsrv_dnsname, cp, nfsrv_dnsnamelen);
+ return;
+ }
+ hasampersand = 0;
+ hp = NFSUSERHASH(uid);
+ mtx_lock(&hp->mtx);
+ TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
+ if (usrp->lug_uid == uid) {
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ break;
+ /*
+ * If the name doesn't already have an '@'
+ * in it, append @domainname to it.
+ */
+ for (i = 0; i < usrp->lug_namelen; i++) {
+ if (usrp->lug_name[i] == '@') {
+ hasampersand = 1;
+ break;
+ }
+ }
+ if (hasampersand)
+ i = usrp->lug_namelen;
+ else
+ i = usrp->lug_namelen +
+ nfsrv_dnsnamelen + 1;
+ if (i > len) {
+ mtx_unlock(&hp->mtx);
+ if (len > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ cp = malloc(i, M_NFSSTRING, M_WAITOK);
+ *cpp = cp;
+ len = i;
+ goto tryagain;
+ }
+ *retlenp = i;
+ NFSBCOPY(usrp->lug_name, cp, usrp->lug_namelen);
+ if (!hasampersand) {
+ cp += usrp->lug_namelen;
+ *cp++ = '@';
+ NFSBCOPY(nfsrv_dnsname, cp, nfsrv_dnsnamelen);
+ }
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ TAILQ_INSERT_TAIL(&hp->lughead, usrp,
+ lug_numhash);
+ mtx_unlock(&hp->mtx);
+ return;
+ }
+ }
+ mtx_unlock(&hp->mtx);
+ cnt++;
+ ret = nfsrv_getuser(RPCNFSUSERD_GETUID, uid, (gid_t)0,
+ NULL, p);
+ if (ret == 0 && cnt < 2)
+ goto tryagain;
+ }
+
+ /*
+ * No match, just return a string of digits.
+ */
+ tmp = uid;
+ i = 0;
+ while (tmp || i == 0) {
+ tmp /= 10;
+ i++;
+ }
+ len = (i > len) ? len : i;
+ *retlenp = len;
+ cp += (len - 1);
+ tmp = uid;
+ for (i = 0; i < len; i++) {
+ *cp-- = '0' + (tmp % 10);
+ tmp /= 10;
+ }
+ return;
+}
+
+/*
+ * Get a credential for the uid with the server's group list.
+ * If none is found, just return the credential passed in after
+ * logging a warning message.
+ */
+struct ucred *
+nfsrv_getgrpscred(struct ucred *oldcred)
+{
+ struct nfsusrgrp *usrp;
+ struct ucred *newcred;
+ int cnt, ret;
+ uid_t uid;
+ struct nfsrv_lughash *hp;
+
+ cnt = 0;
+ uid = oldcred->cr_uid;
+tryagain:
+ if (nfsrv_dnsnamelen > 0) {
+ hp = NFSUSERHASH(uid);
+ mtx_lock(&hp->mtx);
+ TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
+ if (usrp->lug_uid == uid) {
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ break;
+ if (usrp->lug_cred != NULL) {
+ newcred = crhold(usrp->lug_cred);
+ crfree(oldcred);
+ } else
+ newcred = oldcred;
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ TAILQ_INSERT_TAIL(&hp->lughead, usrp,
+ lug_numhash);
+ mtx_unlock(&hp->mtx);
+ return (newcred);
+ }
+ }
+ mtx_unlock(&hp->mtx);
+ cnt++;
+ ret = nfsrv_getuser(RPCNFSUSERD_GETUID, uid, (gid_t)0,
+ NULL, curthread);
+ if (ret == 0 && cnt < 2)
+ goto tryagain;
+ }
+ return (oldcred);
+}
+
+/*
+ * Convert a string to a uid.
+ * If no conversion is possible return NFSERR_BADOWNER, otherwise
+ * return 0.
+ * If this is called from a client side mount using AUTH_SYS and the
+ * string is made up entirely of digits, just convert the string to
+ * a number.
+ */
+APPLESTATIC int
+nfsv4_strtouid(struct nfsrv_descript *nd, u_char *str, int len, uid_t *uidp,
+ NFSPROC_T *p)
+{
+ int i;
+ char *cp, *endstr, *str0;
+ struct nfsusrgrp *usrp;
+ int cnt, ret;
+ int error = 0;
+ uid_t tuid;
+ struct nfsrv_lughash *hp, *hp2;
+
+ if (len == 0) {
+ error = NFSERR_BADOWNER;
+ goto out;
+ }
+ /* If a string of digits and an AUTH_SYS mount, just convert it. */
+ str0 = str;
+ tuid = (uid_t)strtoul(str0, &endstr, 10);
+ if ((endstr - str0) == len) {
+ /* A numeric string. */
+ if ((nd->nd_flag & ND_KERBV) == 0 &&
+ ((nd->nd_flag & ND_NFSCL) != 0 ||
+ nfsd_enable_stringtouid != 0))
+ *uidp = tuid;
+ else
+ error = NFSERR_BADOWNER;
+ goto out;
+ }
+ /*
+ * Look for an '@'.
+ */
+ cp = strchr(str0, '@');
+ if (cp != NULL)
+ i = (int)(cp++ - str0);
+ else
+ i = len;
+
+ cnt = 0;
+tryagain:
+ if (nfsrv_dnsnamelen > 0) {
+ /*
+ * If an '@' is found and the domain name matches, search for
+ * the name with dns stripped off.
+ * Mixed case alpahbetics will match for the domain name, but
+ * all upper case will not.
+ */
+ if (cnt == 0 && i < len && i > 0 &&
+ (len - 1 - i) == nfsrv_dnsnamelen &&
+ !nfsrv_cmpmixedcase(cp, nfsrv_dnsname, nfsrv_dnsnamelen)) {
+ len -= (nfsrv_dnsnamelen + 1);
+ *(cp - 1) = '\0';
+ }
+
+ /*
+ * Check for the special case of "nobody".
+ */
+ if (len == 6 && !NFSBCMP(str, "nobody", 6)) {
+ *uidp = nfsrv_defaultuid;
+ error = 0;
+ goto out;
+ }
+
+ hp = NFSUSERNAMEHASH(str, len);
+ mtx_lock(&hp->mtx);
+ TAILQ_FOREACH(usrp, &hp->lughead, lug_namehash) {
+ if (usrp->lug_namelen == len &&
+ !NFSBCMP(usrp->lug_name, str, len)) {
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ break;
+ hp2 = NFSUSERHASH(usrp->lug_uid);
+ mtx_lock(&hp2->mtx);
+ TAILQ_REMOVE(&hp2->lughead, usrp, lug_numhash);
+ TAILQ_INSERT_TAIL(&hp2->lughead, usrp,
+ lug_numhash);
+ *uidp = usrp->lug_uid;
+ mtx_unlock(&hp2->mtx);
+ mtx_unlock(&hp->mtx);
+ error = 0;
+ goto out;
+ }
+ }
+ mtx_unlock(&hp->mtx);
+ cnt++;
+ ret = nfsrv_getuser(RPCNFSUSERD_GETUSER, (uid_t)0, (gid_t)0,
+ str, p);
+ if (ret == 0 && cnt < 2)
+ goto tryagain;
+ }
+ error = NFSERR_BADOWNER;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Convert a gid to a string.
+ * gid - the group id
+ * cpp - points to a buffer of size NFSV4_SMALLSTR
+ * (malloc a larger one, as required)
+ * retlenp - pointer to length to be returned
+ */
+APPLESTATIC void
+nfsv4_gidtostr(gid_t gid, u_char **cpp, int *retlenp, NFSPROC_T *p)
+{
+ int i;
+ struct nfsusrgrp *usrp;
+ u_char *cp = *cpp;
+ gid_t tmp;
+ int cnt, hasampersand, len = NFSV4_SMALLSTR, ret;
+ struct nfsrv_lughash *hp;
+
+ cnt = 0;
+tryagain:
+ if (nfsrv_dnsnamelen > 0 && !nfs_enable_uidtostring) {
+ /*
+ * Always map nfsrv_defaultgid to "nogroup".
+ */
+ if (gid == nfsrv_defaultgid) {
+ i = nfsrv_dnsnamelen + 8;
+ if (i > len) {
+ if (len > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ cp = malloc(i, M_NFSSTRING, M_WAITOK);
+ *cpp = cp;
+ len = i;
+ goto tryagain;
+ }
+ *retlenp = i;
+ NFSBCOPY("nogroup@", cp, 8);
+ cp += 8;
+ NFSBCOPY(nfsrv_dnsname, cp, nfsrv_dnsnamelen);
+ return;
+ }
+ hasampersand = 0;
+ hp = NFSGROUPHASH(gid);
+ mtx_lock(&hp->mtx);
+ TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
+ if (usrp->lug_gid == gid) {
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ break;
+ /*
+ * If the name doesn't already have an '@'
+ * in it, append @domainname to it.
+ */
+ for (i = 0; i < usrp->lug_namelen; i++) {
+ if (usrp->lug_name[i] == '@') {
+ hasampersand = 1;
+ break;
+ }
+ }
+ if (hasampersand)
+ i = usrp->lug_namelen;
+ else
+ i = usrp->lug_namelen +
+ nfsrv_dnsnamelen + 1;
+ if (i > len) {
+ mtx_unlock(&hp->mtx);
+ if (len > NFSV4_SMALLSTR)
+ free(cp, M_NFSSTRING);
+ cp = malloc(i, M_NFSSTRING, M_WAITOK);
+ *cpp = cp;
+ len = i;
+ goto tryagain;
+ }
+ *retlenp = i;
+ NFSBCOPY(usrp->lug_name, cp, usrp->lug_namelen);
+ if (!hasampersand) {
+ cp += usrp->lug_namelen;
+ *cp++ = '@';
+ NFSBCOPY(nfsrv_dnsname, cp, nfsrv_dnsnamelen);
+ }
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ TAILQ_INSERT_TAIL(&hp->lughead, usrp,
+ lug_numhash);
+ mtx_unlock(&hp->mtx);
+ return;
+ }
+ }
+ mtx_unlock(&hp->mtx);
+ cnt++;
+ ret = nfsrv_getuser(RPCNFSUSERD_GETGID, (uid_t)0, gid,
+ NULL, p);
+ if (ret == 0 && cnt < 2)
+ goto tryagain;
+ }
+
+ /*
+ * No match, just return a string of digits.
+ */
+ tmp = gid;
+ i = 0;
+ while (tmp || i == 0) {
+ tmp /= 10;
+ i++;
+ }
+ len = (i > len) ? len : i;
+ *retlenp = len;
+ cp += (len - 1);
+ tmp = gid;
+ for (i = 0; i < len; i++) {
+ *cp-- = '0' + (tmp % 10);
+ tmp /= 10;
+ }
+ return;
+}
+
+/*
+ * Convert a string to a gid.
+ * If no conversion is possible return NFSERR_BADOWNER, otherwise
+ * return 0.
+ * If this is called from a client side mount using AUTH_SYS and the
+ * string is made up entirely of digits, just convert the string to
+ * a number.
+ */
+APPLESTATIC int
+nfsv4_strtogid(struct nfsrv_descript *nd, u_char *str, int len, gid_t *gidp,
+ NFSPROC_T *p)
+{
+ int i;
+ char *cp, *endstr, *str0;
+ struct nfsusrgrp *usrp;
+ int cnt, ret;
+ int error = 0;
+ gid_t tgid;
+ struct nfsrv_lughash *hp, *hp2;
+
+ if (len == 0) {
+ error = NFSERR_BADOWNER;
+ goto out;
+ }
+ /* If a string of digits and an AUTH_SYS mount, just convert it. */
+ str0 = str;
+ tgid = (gid_t)strtoul(str0, &endstr, 10);
+ if ((endstr - str0) == len) {
+ /* A numeric string. */
+ if ((nd->nd_flag & ND_KERBV) == 0 &&
+ ((nd->nd_flag & ND_NFSCL) != 0 ||
+ nfsd_enable_stringtouid != 0))
+ *gidp = tgid;
+ else
+ error = NFSERR_BADOWNER;
+ goto out;
+ }
+ /*
+ * Look for an '@'.
+ */
+ cp = strchr(str0, '@');
+ if (cp != NULL)
+ i = (int)(cp++ - str0);
+ else
+ i = len;
+
+ cnt = 0;
+tryagain:
+ if (nfsrv_dnsnamelen > 0) {
+ /*
+ * If an '@' is found and the dns name matches, search for the
+ * name with the dns stripped off.
+ */
+ if (cnt == 0 && i < len && i > 0 &&
+ (len - 1 - i) == nfsrv_dnsnamelen &&
+ !nfsrv_cmpmixedcase(cp, nfsrv_dnsname, nfsrv_dnsnamelen)) {
+ len -= (nfsrv_dnsnamelen + 1);
+ *(cp - 1) = '\0';
+ }
+
+ /*
+ * Check for the special case of "nogroup".
+ */
+ if (len == 7 && !NFSBCMP(str, "nogroup", 7)) {
+ *gidp = nfsrv_defaultgid;
+ error = 0;
+ goto out;
+ }
+
+ hp = NFSGROUPNAMEHASH(str, len);
+ mtx_lock(&hp->mtx);
+ TAILQ_FOREACH(usrp, &hp->lughead, lug_namehash) {
+ if (usrp->lug_namelen == len &&
+ !NFSBCMP(usrp->lug_name, str, len)) {
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ break;
+ hp2 = NFSGROUPHASH(usrp->lug_gid);
+ mtx_lock(&hp2->mtx);
+ TAILQ_REMOVE(&hp2->lughead, usrp, lug_numhash);
+ TAILQ_INSERT_TAIL(&hp2->lughead, usrp,
+ lug_numhash);
+ *gidp = usrp->lug_gid;
+ mtx_unlock(&hp2->mtx);
+ mtx_unlock(&hp->mtx);
+ error = 0;
+ goto out;
+ }
+ }
+ mtx_unlock(&hp->mtx);
+ cnt++;
+ ret = nfsrv_getuser(RPCNFSUSERD_GETGROUP, (uid_t)0, (gid_t)0,
+ str, p);
+ if (ret == 0 && cnt < 2)
+ goto tryagain;
+ }
+ error = NFSERR_BADOWNER;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Cmp len chars, allowing mixed case in the first argument to match lower
+ * case in the second, but not if the first argument is all upper case.
+ * Return 0 for a match, 1 otherwise.
+ */
+static int
+nfsrv_cmpmixedcase(u_char *cp, u_char *cp2, int len)
+{
+ int i;
+ u_char tmp;
+ int fndlower = 0;
+
+ for (i = 0; i < len; i++) {
+ if (*cp >= 'A' && *cp <= 'Z') {
+ tmp = *cp++ + ('a' - 'A');
+ } else {
+ tmp = *cp++;
+ if (tmp >= 'a' && tmp <= 'z')
+ fndlower = 1;
+ }
+ if (tmp != *cp2++)
+ return (1);
+ }
+ if (fndlower)
+ return (0);
+ else
+ return (1);
+}
+
+/*
+ * Set the port for the nfsuserd.
+ */
+APPLESTATIC int
+nfsrv_nfsuserdport(struct nfsuserd_args *nargs, NFSPROC_T *p)
+{
+ struct nfssockreq *rp;
+#ifdef INET
+ struct sockaddr_in *ad;
+#endif
+#ifdef INET6
+ struct sockaddr_in6 *ad6;
+ const struct in6_addr in6loopback = IN6ADDR_LOOPBACK_INIT;
+#endif
+ int error;
+
+ NFSLOCKNAMEID();
+ if (nfsrv_nfsuserd != NOTRUNNING) {
+ NFSUNLOCKNAMEID();
+ error = EPERM;
+ goto out;
+ }
+ nfsrv_nfsuserd = STARTSTOP;
+ /*
+ * Set up the socket record and connect.
+ * Set nr_client NULL before unlocking, just to ensure that no other
+ * process/thread/core will use a bogus old value. This could only
+ * occur if the use of the nameid lock to protect nfsrv_nfsuserd is
+ * broken.
+ */
+ rp = &nfsrv_nfsuserdsock;
+ rp->nr_client = NULL;
+ NFSUNLOCKNAMEID();
+ rp->nr_sotype = SOCK_DGRAM;
+ rp->nr_soproto = IPPROTO_UDP;
+ rp->nr_lock = (NFSR_RESERVEDPORT | NFSR_LOCALHOST);
+ rp->nr_cred = NULL;
+ rp->nr_prog = RPCPROG_NFSUSERD;
+ error = 0;
+ switch (nargs->nuserd_family) {
+#ifdef INET
+ case AF_INET:
+ rp->nr_nam = malloc(sizeof(struct sockaddr_in), M_SONAME,
+ M_WAITOK | M_ZERO);
+ ad = (struct sockaddr_in *)rp->nr_nam;
+ ad->sin_len = sizeof(struct sockaddr_in);
+ ad->sin_family = AF_INET;
+ ad->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ ad->sin_port = nargs->nuserd_port;
+ break;
+#endif
+#ifdef INET6
+ case AF_INET6:
+ rp->nr_nam = malloc(sizeof(struct sockaddr_in6), M_SONAME,
+ M_WAITOK | M_ZERO);
+ ad6 = (struct sockaddr_in6 *)rp->nr_nam;
+ ad6->sin6_len = sizeof(struct sockaddr_in6);
+ ad6->sin6_family = AF_INET6;
+ ad6->sin6_addr = in6loopback;
+ ad6->sin6_port = nargs->nuserd_port;
+ break;
+#endif
+ default:
+ error = ENXIO;
+ }
+ rp->nr_vers = RPCNFSUSERD_VERS;
+ if (error == 0)
+ error = newnfs_connect(NULL, rp, NFSPROCCRED(p), p, 0);
+ if (error == 0) {
+ NFSLOCKNAMEID();
+ nfsrv_nfsuserd = RUNNING;
+ NFSUNLOCKNAMEID();
+ } else {
+ free(rp->nr_nam, M_SONAME);
+ NFSLOCKNAMEID();
+ nfsrv_nfsuserd = NOTRUNNING;
+ NFSUNLOCKNAMEID();
+ }
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Delete the nfsuserd port.
+ */
+APPLESTATIC void
+nfsrv_nfsuserddelport(void)
+{
+
+ NFSLOCKNAMEID();
+ if (nfsrv_nfsuserd != RUNNING) {
+ NFSUNLOCKNAMEID();
+ return;
+ }
+ nfsrv_nfsuserd = STARTSTOP;
+ /* Wait for all upcalls to complete. */
+ while (nfsrv_userdupcalls > 0)
+ msleep(&nfsrv_userdupcalls, NFSNAMEIDMUTEXPTR, PVFS,
+ "nfsupcalls", 0);
+ NFSUNLOCKNAMEID();
+ newnfs_disconnect(&nfsrv_nfsuserdsock);
+ free(nfsrv_nfsuserdsock.nr_nam, M_SONAME);
+ NFSLOCKNAMEID();
+ nfsrv_nfsuserd = NOTRUNNING;
+ NFSUNLOCKNAMEID();
+}
+
+/*
+ * Do upcalls to the nfsuserd, for cache misses of the owner/ownergroup
+ * name<-->id cache.
+ * Returns 0 upon success, non-zero otherwise.
+ */
+static int
+nfsrv_getuser(int procnum, uid_t uid, gid_t gid, char *name, NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript *nd;
+ int len;
+ struct nfsrv_descript nfsd;
+ struct ucred *cred;
+ int error;
+
+ NFSLOCKNAMEID();
+ if (nfsrv_nfsuserd != RUNNING) {
+ NFSUNLOCKNAMEID();
+ error = EPERM;
+ goto out;
+ }
+ /*
+ * Maintain a count of upcalls in progress, so that nfsrv_X()
+ * can wait until no upcalls are in progress.
+ */
+ nfsrv_userdupcalls++;
+ NFSUNLOCKNAMEID();
+ KASSERT(nfsrv_userdupcalls > 0,
+ ("nfsrv_getuser: non-positive upcalls"));
+ nd = &nfsd;
+ cred = newnfs_getcred();
+ nd->nd_flag = ND_GSSINITREPLY;
+ nfsrvd_rephead(nd);
+
+ nd->nd_procnum = procnum;
+ if (procnum == RPCNFSUSERD_GETUID || procnum == RPCNFSUSERD_GETGID) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (procnum == RPCNFSUSERD_GETUID)
+ *tl = txdr_unsigned(uid);
+ else
+ *tl = txdr_unsigned(gid);
+ } else {
+ len = strlen(name);
+ (void) nfsm_strtom(nd, name, len);
+ }
+ error = newnfs_request(nd, NULL, NULL, &nfsrv_nfsuserdsock, NULL, NULL,
+ cred, RPCPROG_NFSUSERD, RPCNFSUSERD_VERS, NULL, 0, NULL, NULL);
+ NFSLOCKNAMEID();
+ if (--nfsrv_userdupcalls == 0 && nfsrv_nfsuserd == STARTSTOP)
+ wakeup(&nfsrv_userdupcalls);
+ NFSUNLOCKNAMEID();
+ NFSFREECRED(cred);
+ if (!error) {
+ mbuf_freem(nd->nd_mrep);
+ error = nd->nd_repstat;
+ }
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * This function is called from the nfssvc(2) system call, to update the
+ * kernel user/group name list(s) for the V4 owner and ownergroup attributes.
+ */
+APPLESTATIC int
+nfssvc_idname(struct nfsd_idargs *nidp)
+{
+ struct nfsusrgrp *nusrp, *usrp, *newusrp;
+ struct nfsrv_lughash *hp_name, *hp_idnum, *thp;
+ int i, group_locked, groupname_locked, user_locked, username_locked;
+ int error = 0;
+ u_char *cp;
+ gid_t *grps;
+ struct ucred *cr;
+ static int onethread = 0;
+ static time_t lasttime = 0;
+
+ if (nidp->nid_namelen <= 0 || nidp->nid_namelen > MAXHOSTNAMELEN) {
+ error = EINVAL;
+ goto out;
+ }
+ if (nidp->nid_flag & NFSID_INITIALIZE) {
+ cp = malloc(nidp->nid_namelen + 1, M_NFSSTRING, M_WAITOK);
+ error = copyin(CAST_USER_ADDR_T(nidp->nid_name), cp,
+ nidp->nid_namelen);
+ if (error != 0) {
+ free(cp, M_NFSSTRING);
+ goto out;
+ }
+ if (atomic_cmpset_acq_int(&nfsrv_dnsnamelen, 0, 0) == 0) {
+ /*
+ * Free up all the old stuff and reinitialize hash
+ * lists. All mutexes for both lists must be locked,
+ * with the user/group name ones before the uid/gid
+ * ones, to avoid a LOR.
+ */
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsusernamehash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsuserhash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_FOREACH_SAFE(usrp,
+ &nfsuserhash[i].lughead, lug_numhash, nusrp)
+ nfsrv_removeuser(usrp, 1);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsuserhash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsusernamehash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsgroupnamehash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsgrouphash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_FOREACH_SAFE(usrp,
+ &nfsgrouphash[i].lughead, lug_numhash,
+ nusrp)
+ nfsrv_removeuser(usrp, 0);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsgrouphash[i].mtx);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsgroupnamehash[i].mtx);
+ free(nfsrv_dnsname, M_NFSSTRING);
+ nfsrv_dnsname = NULL;
+ }
+ if (nfsuserhash == NULL) {
+ /* Allocate the hash tables. */
+ nfsuserhash = malloc(sizeof(struct nfsrv_lughash) *
+ nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
+ M_ZERO);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_init(&nfsuserhash[i].mtx, "nfsuidhash",
+ NULL, MTX_DEF | MTX_DUPOK);
+ nfsusernamehash = malloc(sizeof(struct nfsrv_lughash) *
+ nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
+ M_ZERO);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_init(&nfsusernamehash[i].mtx,
+ "nfsusrhash", NULL, MTX_DEF |
+ MTX_DUPOK);
+ nfsgrouphash = malloc(sizeof(struct nfsrv_lughash) *
+ nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
+ M_ZERO);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_init(&nfsgrouphash[i].mtx, "nfsgidhash",
+ NULL, MTX_DEF | MTX_DUPOK);
+ nfsgroupnamehash = malloc(sizeof(struct nfsrv_lughash) *
+ nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
+ M_ZERO);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_init(&nfsgroupnamehash[i].mtx,
+ "nfsgrphash", NULL, MTX_DEF | MTX_DUPOK);
+ }
+ /* (Re)initialize the list heads. */
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_INIT(&nfsuserhash[i].lughead);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_INIT(&nfsusernamehash[i].lughead);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_INIT(&nfsgrouphash[i].lughead);
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ TAILQ_INIT(&nfsgroupnamehash[i].lughead);
+
+ /*
+ * Put name in "DNS" string.
+ */
+ nfsrv_dnsname = cp;
+ nfsrv_defaultuid = nidp->nid_uid;
+ nfsrv_defaultgid = nidp->nid_gid;
+ nfsrv_usercnt = 0;
+ nfsrv_usermax = nidp->nid_usermax;
+ atomic_store_rel_int(&nfsrv_dnsnamelen, nidp->nid_namelen);
+ goto out;
+ }
+
+ /*
+ * malloc the new one now, so any potential sleep occurs before
+ * manipulation of the lists.
+ */
+ newusrp = malloc(sizeof(struct nfsusrgrp) + nidp->nid_namelen,
+ M_NFSUSERGROUP, M_WAITOK | M_ZERO);
+ error = copyin(CAST_USER_ADDR_T(nidp->nid_name), newusrp->lug_name,
+ nidp->nid_namelen);
+ if (error == 0 && nidp->nid_ngroup > 0 &&
+ (nidp->nid_flag & NFSID_ADDUID) != 0) {
+ grps = malloc(sizeof(gid_t) * nidp->nid_ngroup, M_TEMP,
+ M_WAITOK);
+ error = copyin(CAST_USER_ADDR_T(nidp->nid_grps), grps,
+ sizeof(gid_t) * nidp->nid_ngroup);
+ if (error == 0) {
+ /*
+ * Create a credential just like svc_getcred(),
+ * but using the group list provided.
+ */
+ cr = crget();
+ cr->cr_uid = cr->cr_ruid = cr->cr_svuid = nidp->nid_uid;
+ crsetgroups(cr, nidp->nid_ngroup, grps);
+ cr->cr_rgid = cr->cr_svgid = cr->cr_groups[0];
+ cr->cr_prison = &prison0;
+ prison_hold(cr->cr_prison);
+#ifdef MAC
+ mac_cred_associate_nfsd(cr);
+#endif
+ newusrp->lug_cred = cr;
+ }
+ free(grps, M_TEMP);
+ }
+ if (error) {
+ free(newusrp, M_NFSUSERGROUP);
+ goto out;
+ }
+ newusrp->lug_namelen = nidp->nid_namelen;
+
+ /*
+ * The lock order is username[0]->[nfsrv_lughashsize - 1] followed
+ * by uid[0]->[nfsrv_lughashsize - 1], with the same for group.
+ * The flags user_locked, username_locked, group_locked and
+ * groupname_locked are set to indicate all of those hash lists are
+ * locked. hp_name != NULL and hp_idnum != NULL indicates that
+ * the respective one mutex is locked.
+ */
+ user_locked = username_locked = group_locked = groupname_locked = 0;
+ hp_name = hp_idnum = NULL;
+
+ /*
+ * Delete old entries, as required.
+ */
+ if (nidp->nid_flag & (NFSID_DELUID | NFSID_ADDUID)) {
+ /* Must lock all username hash lists first, to avoid a LOR. */
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsusernamehash[i].mtx);
+ username_locked = 1;
+ hp_idnum = NFSUSERHASH(nidp->nid_uid);
+ mtx_lock(&hp_idnum->mtx);
+ TAILQ_FOREACH_SAFE(usrp, &hp_idnum->lughead, lug_numhash,
+ nusrp) {
+ if (usrp->lug_uid == nidp->nid_uid)
+ nfsrv_removeuser(usrp, 1);
+ }
+ } else if (nidp->nid_flag & (NFSID_DELUSERNAME | NFSID_ADDUSERNAME)) {
+ hp_name = NFSUSERNAMEHASH(newusrp->lug_name,
+ newusrp->lug_namelen);
+ mtx_lock(&hp_name->mtx);
+ TAILQ_FOREACH_SAFE(usrp, &hp_name->lughead, lug_namehash,
+ nusrp) {
+ if (usrp->lug_namelen == newusrp->lug_namelen &&
+ !NFSBCMP(usrp->lug_name, newusrp->lug_name,
+ usrp->lug_namelen)) {
+ thp = NFSUSERHASH(usrp->lug_uid);
+ mtx_lock(&thp->mtx);
+ nfsrv_removeuser(usrp, 1);
+ mtx_unlock(&thp->mtx);
+ }
+ }
+ hp_idnum = NFSUSERHASH(nidp->nid_uid);
+ mtx_lock(&hp_idnum->mtx);
+ } else if (nidp->nid_flag & (NFSID_DELGID | NFSID_ADDGID)) {
+ /* Must lock all groupname hash lists first, to avoid a LOR. */
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsgroupnamehash[i].mtx);
+ groupname_locked = 1;
+ hp_idnum = NFSGROUPHASH(nidp->nid_gid);
+ mtx_lock(&hp_idnum->mtx);
+ TAILQ_FOREACH_SAFE(usrp, &hp_idnum->lughead, lug_numhash,
+ nusrp) {
+ if (usrp->lug_gid == nidp->nid_gid)
+ nfsrv_removeuser(usrp, 0);
+ }
+ } else if (nidp->nid_flag & (NFSID_DELGROUPNAME | NFSID_ADDGROUPNAME)) {
+ hp_name = NFSGROUPNAMEHASH(newusrp->lug_name,
+ newusrp->lug_namelen);
+ mtx_lock(&hp_name->mtx);
+ TAILQ_FOREACH_SAFE(usrp, &hp_name->lughead, lug_namehash,
+ nusrp) {
+ if (usrp->lug_namelen == newusrp->lug_namelen &&
+ !NFSBCMP(usrp->lug_name, newusrp->lug_name,
+ usrp->lug_namelen)) {
+ thp = NFSGROUPHASH(usrp->lug_gid);
+ mtx_lock(&thp->mtx);
+ nfsrv_removeuser(usrp, 0);
+ mtx_unlock(&thp->mtx);
+ }
+ }
+ hp_idnum = NFSGROUPHASH(nidp->nid_gid);
+ mtx_lock(&hp_idnum->mtx);
+ }
+
+ /*
+ * Now, we can add the new one.
+ */
+ if (nidp->nid_usertimeout)
+ newusrp->lug_expiry = NFSD_MONOSEC + nidp->nid_usertimeout;
+ else
+ newusrp->lug_expiry = NFSD_MONOSEC + 5;
+ if (nidp->nid_flag & (NFSID_ADDUID | NFSID_ADDUSERNAME)) {
+ newusrp->lug_uid = nidp->nid_uid;
+ thp = NFSUSERHASH(newusrp->lug_uid);
+ mtx_assert(&thp->mtx, MA_OWNED);
+ TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_numhash);
+ thp = NFSUSERNAMEHASH(newusrp->lug_name, newusrp->lug_namelen);
+ mtx_assert(&thp->mtx, MA_OWNED);
+ TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_namehash);
+ atomic_add_int(&nfsrv_usercnt, 1);
+ } else if (nidp->nid_flag & (NFSID_ADDGID | NFSID_ADDGROUPNAME)) {
+ newusrp->lug_gid = nidp->nid_gid;
+ thp = NFSGROUPHASH(newusrp->lug_gid);
+ mtx_assert(&thp->mtx, MA_OWNED);
+ TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_numhash);
+ thp = NFSGROUPNAMEHASH(newusrp->lug_name, newusrp->lug_namelen);
+ mtx_assert(&thp->mtx, MA_OWNED);
+ TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_namehash);
+ atomic_add_int(&nfsrv_usercnt, 1);
+ } else {
+ if (newusrp->lug_cred != NULL)
+ crfree(newusrp->lug_cred);
+ free(newusrp, M_NFSUSERGROUP);
+ }
+
+ /*
+ * Once per second, allow one thread to trim the cache.
+ */
+ if (lasttime < NFSD_MONOSEC &&
+ atomic_cmpset_acq_int(&onethread, 0, 1) != 0) {
+ /*
+ * First, unlock the single mutexes, so that all entries
+ * can be locked and any LOR is avoided.
+ */
+ if (hp_name != NULL) {
+ mtx_unlock(&hp_name->mtx);
+ hp_name = NULL;
+ }
+ if (hp_idnum != NULL) {
+ mtx_unlock(&hp_idnum->mtx);
+ hp_idnum = NULL;
+ }
+
+ if ((nidp->nid_flag & (NFSID_DELUID | NFSID_ADDUID |
+ NFSID_DELUSERNAME | NFSID_ADDUSERNAME)) != 0) {
+ if (username_locked == 0) {
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsusernamehash[i].mtx);
+ username_locked = 1;
+ }
+ KASSERT(user_locked == 0,
+ ("nfssvc_idname: user_locked"));
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsuserhash[i].mtx);
+ user_locked = 1;
+ for (i = 0; i < nfsrv_lughashsize; i++) {
+ TAILQ_FOREACH_SAFE(usrp,
+ &nfsuserhash[i].lughead, lug_numhash,
+ nusrp)
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ nfsrv_removeuser(usrp, 1);
+ }
+ for (i = 0; i < nfsrv_lughashsize; i++) {
+ /*
+ * Trim the cache using an approximate LRU
+ * algorithm. This code deletes the least
+ * recently used entry on each hash list.
+ */
+ if (nfsrv_usercnt <= nfsrv_usermax)
+ break;
+ usrp = TAILQ_FIRST(&nfsuserhash[i].lughead);
+ if (usrp != NULL)
+ nfsrv_removeuser(usrp, 1);
+ }
+ } else {
+ if (groupname_locked == 0) {
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsgroupnamehash[i].mtx);
+ groupname_locked = 1;
+ }
+ KASSERT(group_locked == 0,
+ ("nfssvc_idname: group_locked"));
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_lock(&nfsgrouphash[i].mtx);
+ group_locked = 1;
+ for (i = 0; i < nfsrv_lughashsize; i++) {
+ TAILQ_FOREACH_SAFE(usrp,
+ &nfsgrouphash[i].lughead, lug_numhash,
+ nusrp)
+ if (usrp->lug_expiry < NFSD_MONOSEC)
+ nfsrv_removeuser(usrp, 0);
+ }
+ for (i = 0; i < nfsrv_lughashsize; i++) {
+ /*
+ * Trim the cache using an approximate LRU
+ * algorithm. This code deletes the least
+ * recently user entry on each hash list.
+ */
+ if (nfsrv_usercnt <= nfsrv_usermax)
+ break;
+ usrp = TAILQ_FIRST(&nfsgrouphash[i].lughead);
+ if (usrp != NULL)
+ nfsrv_removeuser(usrp, 0);
+ }
+ }
+ lasttime = NFSD_MONOSEC;
+ atomic_store_rel_int(&onethread, 0);
+ }
+
+ /* Now, unlock all locked mutexes. */
+ if (hp_idnum != NULL)
+ mtx_unlock(&hp_idnum->mtx);
+ if (hp_name != NULL)
+ mtx_unlock(&hp_name->mtx);
+ if (user_locked != 0)
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsuserhash[i].mtx);
+ if (username_locked != 0)
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsusernamehash[i].mtx);
+ if (group_locked != 0)
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsgrouphash[i].mtx);
+ if (groupname_locked != 0)
+ for (i = 0; i < nfsrv_lughashsize; i++)
+ mtx_unlock(&nfsgroupnamehash[i].mtx);
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Remove a user/group name element.
+ */
+static void
+nfsrv_removeuser(struct nfsusrgrp *usrp, int isuser)
+{
+ struct nfsrv_lughash *hp;
+
+ if (isuser != 0) {
+ hp = NFSUSERHASH(usrp->lug_uid);
+ mtx_assert(&hp->mtx, MA_OWNED);
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ hp = NFSUSERNAMEHASH(usrp->lug_name, usrp->lug_namelen);
+ mtx_assert(&hp->mtx, MA_OWNED);
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_namehash);
+ } else {
+ hp = NFSGROUPHASH(usrp->lug_gid);
+ mtx_assert(&hp->mtx, MA_OWNED);
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ hp = NFSGROUPNAMEHASH(usrp->lug_name, usrp->lug_namelen);
+ mtx_assert(&hp->mtx, MA_OWNED);
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_namehash);
+ }
+ atomic_add_int(&nfsrv_usercnt, -1);
+ if (usrp->lug_cred != NULL)
+ crfree(usrp->lug_cred);
+ free(usrp, M_NFSUSERGROUP);
+}
+
+/*
+ * Free up all the allocations related to the name<-->id cache.
+ * This function should only be called when the nfsuserd daemon isn't
+ * running, since it doesn't do any locking.
+ * This function is meant to be used when the nfscommon module is unloaded.
+ */
+APPLESTATIC void
+nfsrv_cleanusergroup(void)
+{
+ struct nfsrv_lughash *hp, *hp2;
+ struct nfsusrgrp *nusrp, *usrp;
+ int i;
+
+ if (nfsuserhash == NULL)
+ return;
+
+ for (i = 0; i < nfsrv_lughashsize; i++) {
+ hp = &nfsuserhash[i];
+ TAILQ_FOREACH_SAFE(usrp, &hp->lughead, lug_numhash, nusrp) {
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ hp2 = NFSUSERNAMEHASH(usrp->lug_name,
+ usrp->lug_namelen);
+ TAILQ_REMOVE(&hp2->lughead, usrp, lug_namehash);
+ if (usrp->lug_cred != NULL)
+ crfree(usrp->lug_cred);
+ free(usrp, M_NFSUSERGROUP);
+ }
+ hp = &nfsgrouphash[i];
+ TAILQ_FOREACH_SAFE(usrp, &hp->lughead, lug_numhash, nusrp) {
+ TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
+ hp2 = NFSGROUPNAMEHASH(usrp->lug_name,
+ usrp->lug_namelen);
+ TAILQ_REMOVE(&hp2->lughead, usrp, lug_namehash);
+ if (usrp->lug_cred != NULL)
+ crfree(usrp->lug_cred);
+ free(usrp, M_NFSUSERGROUP);
+ }
+ mtx_destroy(&nfsuserhash[i].mtx);
+ mtx_destroy(&nfsusernamehash[i].mtx);
+ mtx_destroy(&nfsgroupnamehash[i].mtx);
+ mtx_destroy(&nfsgrouphash[i].mtx);
+ }
+ free(nfsuserhash, M_NFSUSERGROUP);
+ free(nfsusernamehash, M_NFSUSERGROUP);
+ free(nfsgrouphash, M_NFSUSERGROUP);
+ free(nfsgroupnamehash, M_NFSUSERGROUP);
+ free(nfsrv_dnsname, M_NFSSTRING);
+}
+
+/*
+ * This function scans a byte string and checks for UTF-8 compliance.
+ * It returns 0 if it conforms and NFSERR_INVAL if not.
+ */
+APPLESTATIC int
+nfsrv_checkutf8(u_int8_t *cp, int len)
+{
+ u_int32_t val = 0x0;
+ int cnt = 0, gotd = 0, shift = 0;
+ u_int8_t byte;
+ static int utf8_shift[5] = { 7, 11, 16, 21, 26 };
+ int error = 0;
+
+ /*
+ * Here are what the variables are used for:
+ * val - the calculated value of a multibyte char, used to check
+ * that it was coded with the correct range
+ * cnt - the number of 10xxxxxx bytes to follow
+ * gotd - set for a char of Dxxx, so D800<->DFFF can be checked for
+ * shift - lower order bits of range (ie. "val >> shift" should
+ * not be 0, in other words, dividing by the lower bound
+ * of the range should get a non-zero value)
+ * byte - used to calculate cnt
+ */
+ while (len > 0) {
+ if (cnt > 0) {
+ /* This handles the 10xxxxxx bytes */
+ if ((*cp & 0xc0) != 0x80 ||
+ (gotd && (*cp & 0x20))) {
+ error = NFSERR_INVAL;
+ goto out;
+ }
+ gotd = 0;
+ val <<= 6;
+ val |= (*cp & 0x3f);
+ cnt--;
+ if (cnt == 0 && (val >> shift) == 0x0) {
+ error = NFSERR_INVAL;
+ goto out;
+ }
+ } else if (*cp & 0x80) {
+ /* first byte of multi byte char */
+ byte = *cp;
+ while ((byte & 0x40) && cnt < 6) {
+ cnt++;
+ byte <<= 1;
+ }
+ if (cnt == 0 || cnt == 6) {
+ error = NFSERR_INVAL;
+ goto out;
+ }
+ val = (*cp & (0x3f >> cnt));
+ shift = utf8_shift[cnt - 1];
+ if (cnt == 2 && val == 0xd)
+ /* Check for the 0xd800-0xdfff case */
+ gotd = 1;
+ }
+ cp++;
+ len--;
+ }
+ if (cnt > 0)
+ error = NFSERR_INVAL;
+
+out:
+ NFSEXITCODE(error);
+ return (error);
+}
+
+/*
+ * Parse the xdr for an NFSv4 FsLocations attribute. Return two malloc'd
+ * strings, one with the root path in it and the other with the list of
+ * locations. The list is in the same format as is found in nfr_refs.
+ * It is a "," separated list of entries, where each of them is of the
+ * form <server>:<rootpath>. For example
+ * "nfsv4-test:/sub2,nfsv4-test2:/user/mnt,nfsv4-test2:/user/mnt2"
+ * The nilp argument is set to 1 for the special case of a null fs_root
+ * and an empty server list.
+ * It returns NFSERR_BADXDR, if the xdr can't be parsed and returns the
+ * number of xdr bytes parsed in sump.
+ */
+static int
+nfsrv_getrefstr(struct nfsrv_descript *nd, u_char **fsrootp, u_char **srvp,
+ int *sump, int *nilp)
+{
+ u_int32_t *tl;
+ u_char *cp = NULL, *cp2 = NULL, *cp3, *str;
+ int i, j, len, stringlen, cnt, slen, siz, xdrsum, error = 0, nsrv;
+ struct list {
+ SLIST_ENTRY(list) next;
+ int len;
+ u_char host[1];
+ } *lsp, *nlsp;
+ SLIST_HEAD(, list) head;
+
+ *fsrootp = NULL;
+ *srvp = NULL;
+ *nilp = 0;
+
+ /*
+ * Get the fs_root path and check for the special case of null path
+ * and 0 length server list.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *tl);
+ if (len < 0 || len > 10240) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (len == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (*tl != 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ *nilp = 1;
+ *sump = 2 * NFSX_UNSIGNED;
+ error = 0;
+ goto nfsmout;
+ }
+ cp = malloc(len + 1, M_NFSSTRING, M_WAITOK);
+ error = nfsrv_mtostr(nd, cp, len);
+ if (!error) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ cnt = fxdr_unsigned(int, *tl);
+ if (cnt <= 0)
+ error = NFSERR_BADXDR;
+ }
+ if (error)
+ goto nfsmout;
+
+ /*
+ * Now, loop through the location list and make up the srvlist.
+ */
+ xdrsum = (2 * NFSX_UNSIGNED) + NFSM_RNDUP(len);
+ cp2 = cp3 = malloc(1024, M_NFSSTRING, M_WAITOK);
+ slen = 1024;
+ siz = 0;
+ for (i = 0; i < cnt; i++) {
+ SLIST_INIT(&head);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ nsrv = fxdr_unsigned(int, *tl);
+ if (nsrv <= 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+
+ /*
+ * Handle the first server by putting it in the srvstr.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *tl);
+ if (len <= 0 || len > 1024) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ nfsrv_refstrbigenough(siz + len + 3, &cp2, &cp3, &slen);
+ if (cp3 != cp2) {
+ *cp3++ = ',';
+ siz++;
+ }
+ error = nfsrv_mtostr(nd, cp3, len);
+ if (error)
+ goto nfsmout;
+ cp3 += len;
+ *cp3++ = ':';
+ siz += (len + 1);
+ xdrsum += (2 * NFSX_UNSIGNED) + NFSM_RNDUP(len);
+ for (j = 1; j < nsrv; j++) {
+ /*
+ * Yuck, put them in an slist and process them later.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *tl);
+ if (len <= 0 || len > 1024) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ lsp = (struct list *)malloc(sizeof (struct list)
+ + len, M_TEMP, M_WAITOK);
+ error = nfsrv_mtostr(nd, lsp->host, len);
+ if (error)
+ goto nfsmout;
+ xdrsum += NFSX_UNSIGNED + NFSM_RNDUP(len);
+ lsp->len = len;
+ SLIST_INSERT_HEAD(&head, lsp, next);
+ }
+
+ /*
+ * Finally, we can get the path.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *tl);
+ if (len <= 0 || len > 1024) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ nfsrv_refstrbigenough(siz + len + 1, &cp2, &cp3, &slen);
+ error = nfsrv_mtostr(nd, cp3, len);
+ if (error)
+ goto nfsmout;
+ xdrsum += NFSX_UNSIGNED + NFSM_RNDUP(len);
+ str = cp3;
+ stringlen = len;
+ cp3 += len;
+ siz += len;
+ SLIST_FOREACH_SAFE(lsp, &head, next, nlsp) {
+ nfsrv_refstrbigenough(siz + lsp->len + stringlen + 3,
+ &cp2, &cp3, &slen);
+ *cp3++ = ',';
+ NFSBCOPY(lsp->host, cp3, lsp->len);
+ cp3 += lsp->len;
+ *cp3++ = ':';
+ NFSBCOPY(str, cp3, stringlen);
+ cp3 += stringlen;
+ *cp3 = '\0';
+ siz += (lsp->len + stringlen + 2);
+ free(lsp, M_TEMP);
+ }
+ }
+ *fsrootp = cp;
+ *srvp = cp2;
+ *sump = xdrsum;
+ NFSEXITCODE2(0, nd);
+ return (0);
+nfsmout:
+ if (cp != NULL)
+ free(cp, M_NFSSTRING);
+ if (cp2 != NULL)
+ free(cp2, M_NFSSTRING);
+ NFSEXITCODE2(error, nd);
+ return (error);
+}
+
+/*
+ * Make the malloc'd space large enough. This is a pain, but the xdr
+ * doesn't set an upper bound on the side, so...
+ */
+static void
+nfsrv_refstrbigenough(int siz, u_char **cpp, u_char **cpp2, int *slenp)
+{
+ u_char *cp;
+ int i;
+
+ if (siz <= *slenp)
+ return;
+ cp = malloc(siz + 1024, M_NFSSTRING, M_WAITOK);
+ NFSBCOPY(*cpp, cp, *slenp);
+ free(*cpp, M_NFSSTRING);
+ i = *cpp2 - *cpp;
+ *cpp = cp;
+ *cpp2 = cp + i;
+ *slenp = siz + 1024;
+}
+
+/*
+ * Initialize the reply header data structures.
+ */
+APPLESTATIC void
+nfsrvd_rephead(struct nfsrv_descript *nd)
+{
+ mbuf_t mreq;
+
+ /*
+ * If this is a big reply, use a cluster.
+ */
+ if ((nd->nd_flag & ND_GSSINITREPLY) == 0 &&
+ nfs_bigreply[nd->nd_procnum]) {
+ NFSMCLGET(mreq, M_WAITOK);
+ nd->nd_mreq = mreq;
+ nd->nd_mb = mreq;
+ } else {
+ NFSMGET(mreq);
+ nd->nd_mreq = mreq;
+ nd->nd_mb = mreq;
+ }
+ nd->nd_bpos = NFSMTOD(mreq, caddr_t);
+ mbuf_setlen(mreq, 0);
+
+ if ((nd->nd_flag & ND_GSSINITREPLY) == 0)
+ NFSM_BUILD(nd->nd_errp, int *, NFSX_UNSIGNED);
+}
+
+/*
+ * Lock a socket against others.
+ * Currently used to serialize connect/disconnect attempts.
+ */
+int
+newnfs_sndlock(int *flagp)
+{
+ struct timespec ts;
+
+ NFSLOCKSOCK();
+ while (*flagp & NFSR_SNDLOCK) {
+ *flagp |= NFSR_WANTSND;
+ ts.tv_sec = 0;
+ ts.tv_nsec = 0;
+ (void) nfsmsleep((caddr_t)flagp, NFSSOCKMUTEXPTR,
+ PZERO - 1, "nfsndlck", &ts);
+ }
+ *flagp |= NFSR_SNDLOCK;
+ NFSUNLOCKSOCK();
+ return (0);
+}
+
+/*
+ * Unlock the stream socket for others.
+ */
+void
+newnfs_sndunlock(int *flagp)
+{
+
+ NFSLOCKSOCK();
+ if ((*flagp & NFSR_SNDLOCK) == 0)
+ panic("nfs sndunlock");
+ *flagp &= ~NFSR_SNDLOCK;
+ if (*flagp & NFSR_WANTSND) {
+ *flagp &= ~NFSR_WANTSND;
+ wakeup((caddr_t)flagp);
+ }
+ NFSUNLOCKSOCK();
+}
+
+APPLESTATIC int
+nfsv4_getipaddr(struct nfsrv_descript *nd, struct sockaddr_in *sin,
+ struct sockaddr_in6 *sin6, sa_family_t *saf, int *isudp)
+{
+ struct in_addr saddr;
+ uint32_t portnum, *tl;
+ int i, j, k;
+ sa_family_t af = AF_UNSPEC;
+ char addr[64], protocol[5], *cp;
+ int cantparse = 0, error = 0;
+ uint16_t portv;
+
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl);
+ if (i >= 3 && i <= 4) {
+ error = nfsrv_mtostr(nd, protocol, i);
+ if (error)
+ goto nfsmout;
+ if (strcmp(protocol, "tcp") == 0) {
+ af = AF_INET;
+ *isudp = 0;
+ } else if (strcmp(protocol, "udp") == 0) {
+ af = AF_INET;
+ *isudp = 1;
+ } else if (strcmp(protocol, "tcp6") == 0) {
+ af = AF_INET6;
+ *isudp = 0;
+ } else if (strcmp(protocol, "udp6") == 0) {
+ af = AF_INET6;
+ *isudp = 1;
+ } else
+ cantparse = 1;
+ } else {
+ cantparse = 1;
+ if (i > 0) {
+ error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
+ if (error)
+ goto nfsmout;
+ }
+ }
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ i = fxdr_unsigned(int, *tl);
+ if (i < 0) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ } else if (cantparse == 0 && i >= 11 && i < 64) {
+ /*
+ * The shortest address is 11chars and the longest is < 64.
+ */
+ error = nfsrv_mtostr(nd, addr, i);
+ if (error)
+ goto nfsmout;
+
+ /* Find the port# at the end and extract that. */
+ i = strlen(addr);
+ k = 0;
+ cp = &addr[i - 1];
+ /* Count back two '.'s from end to get port# field. */
+ for (j = 0; j < i; j++) {
+ if (*cp == '.') {
+ k++;
+ if (k == 2)
+ break;
+ }
+ cp--;
+ }
+ if (k == 2) {
+ /*
+ * The NFSv4 port# is appended as .N.N, where N is
+ * a decimal # in the range 0-255, just like an inet4
+ * address. Cheat and use inet_aton(), which will
+ * return a Class A address and then shift the high
+ * order 8bits over to convert it to the port#.
+ */
+ *cp++ = '\0';
+ if (inet_aton(cp, &saddr) == 1) {
+ portnum = ntohl(saddr.s_addr);
+ portv = (uint16_t)((portnum >> 16) |
+ (portnum & 0xff));
+ } else
+ cantparse = 1;
+ } else
+ cantparse = 1;
+ if (cantparse == 0) {
+ if (af == AF_INET) {
+ if (inet_pton(af, addr, &sin->sin_addr) == 1) {
+ sin->sin_len = sizeof(*sin);
+ sin->sin_family = AF_INET;
+ sin->sin_port = htons(portv);
+ *saf = af;
+ return (0);
+ }
+ } else {
+ if (inet_pton(af, addr, &sin6->sin6_addr)
+ == 1) {
+ sin6->sin6_len = sizeof(*sin6);
+ sin6->sin6_family = AF_INET6;
+ sin6->sin6_port = htons(portv);
+ *saf = af;
+ return (0);
+ }
+ }
+ }
+ } else {
+ if (i > 0) {
+ error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
+ if (error)
+ goto nfsmout;
+ }
+ }
+ error = EPERM;
+nfsmout:
+ return (error);
+}
+
+/*
+ * Handle an NFSv4.1 Sequence request for the session.
+ * If reply != NULL, use it to return the cached reply, as required.
+ * The client gets a cached reply via this call for callbacks, however the
+ * server gets a cached reply via the nfsv4_seqsess_cachereply() call.
+ */
+int
+nfsv4_seqsession(uint32_t seqid, uint32_t slotid, uint32_t highslot,
+ struct nfsslot *slots, struct mbuf **reply, uint16_t maxslot)
+{
+ int error;
+
+ error = 0;
+ if (reply != NULL)
+ *reply = NULL;
+ if (slotid > maxslot)
+ return (NFSERR_BADSLOT);
+ if (seqid == slots[slotid].nfssl_seq) {
+ /* A retry. */
+ if (slots[slotid].nfssl_inprog != 0)
+ error = NFSERR_DELAY;
+ else if (slots[slotid].nfssl_reply != NULL) {
+ if (reply != NULL) {
+ *reply = slots[slotid].nfssl_reply;
+ slots[slotid].nfssl_reply = NULL;
+ }
+ slots[slotid].nfssl_inprog = 1;
+ error = NFSERR_REPLYFROMCACHE;
+ } else
+ /* No reply cached, so just do it. */
+ slots[slotid].nfssl_inprog = 1;
+ } else if ((slots[slotid].nfssl_seq + 1) == seqid) {
+ if (slots[slotid].nfssl_reply != NULL)
+ m_freem(slots[slotid].nfssl_reply);
+ slots[slotid].nfssl_reply = NULL;
+ slots[slotid].nfssl_inprog = 1;
+ slots[slotid].nfssl_seq++;
+ } else
+ error = NFSERR_SEQMISORDERED;
+ return (error);
+}
+
+/*
+ * Cache this reply for the slot.
+ * Use the "rep" argument to return the cached reply if repstat is set to
+ * NFSERR_REPLYFROMCACHE. The client never sets repstat to this value.
+ */
+void
+nfsv4_seqsess_cacherep(uint32_t slotid, struct nfsslot *slots, int repstat,
+ struct mbuf **rep)
+{
+
+ if (repstat == NFSERR_REPLYFROMCACHE) {
+ *rep = slots[slotid].nfssl_reply;
+ slots[slotid].nfssl_reply = NULL;
+ } else {
+ if (slots[slotid].nfssl_reply != NULL)
+ m_freem(slots[slotid].nfssl_reply);
+ slots[slotid].nfssl_reply = *rep;
+ }
+ slots[slotid].nfssl_inprog = 0;
+}
+
+/*
+ * Generate the xdr for an NFSv4.1 Sequence Operation.
+ */
+APPLESTATIC void
+nfsv4_setsequence(struct nfsmount *nmp, struct nfsrv_descript *nd,
+ struct nfsclsession *sep, int dont_replycache)
+{
+ uint32_t *tl, slotseq = 0;
+ int error, maxslot, slotpos;
+ uint8_t sessionid[NFSX_V4SESSIONID];
+
+ error = nfsv4_sequencelookup(nmp, sep, &slotpos, &maxslot, &slotseq,
+ sessionid);
+
+ /* Build the Sequence arguments. */
+ NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID + 4 * NFSX_UNSIGNED);
+ nd->nd_sequence = tl;
+ bcopy(sessionid, tl, NFSX_V4SESSIONID);
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ nd->nd_slotseq = tl;
+ if (error == 0) {
+ nd->nd_flag |= ND_HASSLOTID;
+ nd->nd_slotid = slotpos;
+ *tl++ = txdr_unsigned(slotseq);
+ *tl++ = txdr_unsigned(slotpos);
+ *tl++ = txdr_unsigned(maxslot);
+ if (dont_replycache == 0)
+ *tl = newnfs_true;
+ else
+ *tl = newnfs_false;
+ } else {
+ /*
+ * There are two errors and the rest of the session can
+ * just be zeros.
+ * NFSERR_BADSESSION: This bad session should just generate
+ * the same error again when the RPC is retried.
+ * ESTALE: A forced dismount is in progress and will cause the
+ * RPC to fail later.
+ */
+ *tl++ = 0;
+ *tl++ = 0;
+ *tl++ = 0;
+ *tl = 0;
+ }
+ nd->nd_flag |= ND_HASSEQUENCE;
+}
+
+int
+nfsv4_sequencelookup(struct nfsmount *nmp, struct nfsclsession *sep,
+ int *slotposp, int *maxslotp, uint32_t *slotseqp, uint8_t *sessionid)
+{
+ int i, maxslot, slotpos;
+ uint64_t bitval;
+
+ /* Find an unused slot. */
+ slotpos = -1;
+ maxslot = -1;
+ mtx_lock(&sep->nfsess_mtx);
+ do {
+ if (nmp != NULL && sep->nfsess_defunct != 0) {
+ /* Just return the bad session. */
+ bcopy(sep->nfsess_sessionid, sessionid,
+ NFSX_V4SESSIONID);
+ mtx_unlock(&sep->nfsess_mtx);
+ return (NFSERR_BADSESSION);
+ }
+ bitval = 1;
+ for (i = 0; i < sep->nfsess_foreslots; i++) {
+ if ((bitval & sep->nfsess_slots) == 0) {
+ slotpos = i;
+ sep->nfsess_slots |= bitval;
+ sep->nfsess_slotseq[i]++;
+ *slotseqp = sep->nfsess_slotseq[i];
+ break;
+ }
+ bitval <<= 1;
+ }
+ if (slotpos == -1) {
+ /*
+ * If a forced dismount is in progress, just return.
+ * This RPC attempt will fail when it calls
+ * newnfs_request().
+ */
+ if (nmp != NULL && NFSCL_FORCEDISM(nmp->nm_mountp)) {
+ mtx_unlock(&sep->nfsess_mtx);
+ return (ESTALE);
+ }
+ /* Wake up once/sec, to check for a forced dismount. */
+ (void)mtx_sleep(&sep->nfsess_slots, &sep->nfsess_mtx,
+ PZERO, "nfsclseq", hz);
+ }
+ } while (slotpos == -1);
+ /* Now, find the highest slot in use. (nfsc_slots is 64bits) */
+ bitval = 1;
+ for (i = 0; i < 64; i++) {
+ if ((bitval & sep->nfsess_slots) != 0)
+ maxslot = i;
+ bitval <<= 1;
+ }
+ bcopy(sep->nfsess_sessionid, sessionid, NFSX_V4SESSIONID);
+ mtx_unlock(&sep->nfsess_mtx);
+ *slotposp = slotpos;
+ *maxslotp = maxslot;
+ return (0);
+}
+
+/*
+ * Free a session slot.
+ */
+APPLESTATIC void
+nfsv4_freeslot(struct nfsclsession *sep, int slot)
+{
+ uint64_t bitval;
+
+ bitval = 1;
+ if (slot > 0)
+ bitval <<= slot;
+ mtx_lock(&sep->nfsess_mtx);
+ if ((bitval & sep->nfsess_slots) == 0)
+ printf("freeing free slot!!\n");
+ sep->nfsess_slots &= ~bitval;
+ wakeup(&sep->nfsess_slots);
+ mtx_unlock(&sep->nfsess_mtx);
+}
+
+/*
+ * Search for a matching pnfsd DS, based on the nmp arg.
+ * Return one if found, NULL otherwise.
+ */
+struct nfsdevice *
+nfsv4_findmirror(struct nfsmount *nmp)
+{
+ struct nfsdevice *ds;
+
+ mtx_assert(NFSDDSMUTEXPTR, MA_OWNED);
+ /*
+ * Search the DS server list for a match with nmp.
+ */
+ if (nfsrv_devidcnt == 0)
+ return (NULL);
+ TAILQ_FOREACH(ds, &nfsrv_devidhead, nfsdev_list) {
+ if (ds->nfsdev_nmp == nmp) {
+ NFSCL_DEBUG(4, "nfsv4_findmirror: fnd main ds\n");
+ break;
+ }
+ }
+ return (ds);
+}
+
diff --git a/freebsd/sys/fs/nfs/nfs_var.h b/freebsd/sys/fs/nfs/nfs_var.h
new file mode 100644
index 0000000..9162286
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfs_var.h
@@ -0,0 +1,742 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * XXX needs <nfs/rpcv2.h> and <nfs/nfs.h> because of typedefs
+ */
+
+struct uio;
+struct ucred;
+struct nfscred;
+NFSPROC_T;
+struct buf;
+struct sockaddr_in;
+struct nfs_dlmount;
+struct file;
+struct nfsmount;
+struct socket;
+struct nfsreq;
+struct nfssockreq;
+struct vattr;
+struct nameidata;
+struct nfsnode;
+struct nfsfh;
+struct sillyrename;
+struct componentname;
+struct nfsd_srvargs;
+struct nfsrv_descript;
+struct nfs_fattr;
+union nethostaddr;
+struct nfsstate;
+struct nfslock;
+struct nfsclient;
+struct nfslayout;
+struct nfsdsession;
+struct nfslockconflict;
+struct nfsd_idargs;
+struct nfsd_clid;
+struct nfsusrgrp;
+struct nfsclowner;
+struct nfsclopen;
+struct nfsclopenhead;
+struct nfsclclient;
+struct nfsclsession;
+struct nfscllockowner;
+struct nfscllock;
+struct nfscldeleg;
+struct nfscllayout;
+struct nfscldevinfo;
+struct nfsv4lock;
+struct nfsvattr;
+struct nfs_vattr;
+struct NFSSVCARGS;
+struct nfsdevice;
+struct pnfsdsfile;
+struct pnfsdsattr;
+#ifdef __FreeBSD__
+NFS_ACCESS_ARGS;
+NFS_OPEN_ARGS;
+NFS_GETATTR_ARGS;
+NFS_LOOKUP_ARGS;
+NFS_READDIR_ARGS;
+#endif
+
+/* nfs_nfsdstate.c */
+int nfsrv_setclient(struct nfsrv_descript *, struct nfsclient **,
+ nfsquad_t *, nfsquad_t *, NFSPROC_T *);
+int nfsrv_getclient(nfsquad_t, int, struct nfsclient **, struct nfsdsession *,
+ nfsquad_t, uint32_t, struct nfsrv_descript *, NFSPROC_T *);
+int nfsrv_destroyclient(nfsquad_t, NFSPROC_T *);
+int nfsrv_destroysession(struct nfsrv_descript *, uint8_t *);
+int nfsrv_bindconnsess(struct nfsrv_descript *, uint8_t *, int *);
+int nfsrv_freestateid(struct nfsrv_descript *, nfsv4stateid_t *, NFSPROC_T *);
+int nfsrv_teststateid(struct nfsrv_descript *, nfsv4stateid_t *, NFSPROC_T *);
+int nfsrv_adminrevoke(struct nfsd_clid *, NFSPROC_T *);
+void nfsrv_dumpclients(struct nfsd_dumpclients *, int);
+void nfsrv_dumplocks(vnode_t, struct nfsd_dumplocks *, int, NFSPROC_T *);
+int nfsrv_lockctrl(vnode_t, struct nfsstate **,
+ struct nfslock **, struct nfslockconflict *, nfsquad_t, nfsv4stateid_t *,
+ struct nfsexstuff *, struct nfsrv_descript *, NFSPROC_T *);
+int nfsrv_openctrl(struct nfsrv_descript *, vnode_t,
+ struct nfsstate **, nfsquad_t, nfsv4stateid_t *, nfsv4stateid_t *,
+ u_int32_t *, struct nfsexstuff *, NFSPROC_T *, u_quad_t);
+int nfsrv_opencheck(nfsquad_t, nfsv4stateid_t *, struct nfsstate *,
+ vnode_t, struct nfsrv_descript *, NFSPROC_T *, int);
+int nfsrv_openupdate(vnode_t, struct nfsstate *, nfsquad_t,
+ nfsv4stateid_t *, struct nfsrv_descript *, NFSPROC_T *, int *);
+int nfsrv_delegupdate(struct nfsrv_descript *, nfsquad_t, nfsv4stateid_t *,
+ vnode_t, int, struct ucred *, NFSPROC_T *, int *);
+int nfsrv_releaselckown(struct nfsstate *, nfsquad_t, NFSPROC_T *);
+void nfsrv_zapclient(struct nfsclient *, NFSPROC_T *);
+int nfssvc_idname(struct nfsd_idargs *);
+void nfsrv_servertimer(void);
+int nfsrv_getclientipaddr(struct nfsrv_descript *, struct nfsclient *);
+void nfsrv_setupstable(NFSPROC_T *);
+void nfsrv_updatestable(NFSPROC_T *);
+void nfsrv_writestable(u_char *, int, int, NFSPROC_T *);
+void nfsrv_throwawayopens(NFSPROC_T *);
+int nfsrv_checkremove(vnode_t, int, NFSPROC_T *);
+void nfsd_recalldelegation(vnode_t, NFSPROC_T *);
+void nfsd_disabledelegation(vnode_t, NFSPROC_T *);
+int nfsrv_checksetattr(vnode_t, struct nfsrv_descript *,
+ nfsv4stateid_t *, struct nfsvattr *, nfsattrbit_t *, struct nfsexstuff *,
+ NFSPROC_T *);
+int nfsrv_checkgetattr(struct nfsrv_descript *, vnode_t,
+ struct nfsvattr *, nfsattrbit_t *, NFSPROC_T *);
+int nfsrv_nfsuserdport(struct nfsuserd_args *, NFSPROC_T *);
+void nfsrv_nfsuserddelport(void);
+void nfsrv_throwawayallstate(NFSPROC_T *);
+int nfsrv_checksequence(struct nfsrv_descript *, uint32_t, uint32_t *,
+ uint32_t *, int, uint32_t *, NFSPROC_T *);
+int nfsrv_checkreclaimcomplete(struct nfsrv_descript *, int);
+void nfsrv_cache_session(uint8_t *, uint32_t, int, struct mbuf **);
+void nfsrv_freeallbackchannel_xprts(void);
+int nfsrv_layoutcommit(struct nfsrv_descript *, vnode_t, int, int, uint64_t,
+ uint64_t, uint64_t, int, struct timespec *, int, nfsv4stateid_t *,
+ int, char *, int *, uint64_t *, struct ucred *, NFSPROC_T *);
+int nfsrv_layoutget(struct nfsrv_descript *, vnode_t, struct nfsexstuff *,
+ int, int *, uint64_t *, uint64_t *, uint64_t, nfsv4stateid_t *, int, int *,
+ int *, char *, struct ucred *, NFSPROC_T *);
+void nfsrv_flexmirrordel(char *, NFSPROC_T *);
+void nfsrv_recalloldlayout(NFSPROC_T *);
+int nfsrv_layoutreturn(struct nfsrv_descript *, vnode_t, int, int, uint64_t,
+ uint64_t, int, int, nfsv4stateid_t *, int, uint32_t *, int *,
+ struct ucred *, NFSPROC_T *);
+int nfsrv_getdevinfo(char *, int, uint32_t *, uint32_t *, int *, char **);
+void nfsrv_freeonedevid(struct nfsdevice *);
+void nfsrv_freealllayoutsanddevids(void);
+void nfsrv_freefilelayouts(fhandle_t *);
+int nfsrv_deldsserver(int, char *, NFSPROC_T *);
+struct nfsdevice *nfsrv_deldsnmp(int, struct nfsmount *, NFSPROC_T *);
+int nfsrv_createdevids(struct nfsd_nfsd_args *, NFSPROC_T *);
+int nfsrv_checkdsattr(struct nfsrv_descript *, vnode_t, NFSPROC_T *);
+int nfsrv_copymr(vnode_t, vnode_t, vnode_t, struct nfsdevice *,
+ struct pnfsdsfile *, struct pnfsdsfile *, int, struct ucred *, NFSPROC_T *);
+int nfsrv_mdscopymr(char *, char *, char *, char *, int *, char *, NFSPROC_T *,
+ struct vnode **, struct vnode **, struct pnfsdsfile **, struct nfsdevice **,
+ struct nfsdevice **);
+
+/* nfs_nfsdserv.c */
+int nfsrvd_access(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_getattr(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_setattr(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_lookup(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_readlink(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_read(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_write(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_create(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_mknod(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_remove(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_rename(struct nfsrv_descript *, int,
+ vnode_t, vnode_t, NFSPROC_T *, struct nfsexstuff *,
+ struct nfsexstuff *);
+int nfsrvd_link(struct nfsrv_descript *, int,
+ vnode_t, vnode_t, NFSPROC_T *, struct nfsexstuff *,
+ struct nfsexstuff *);
+int nfsrvd_symlink(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_mkdir(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_readdir(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_readdirplus(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_commit(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_statfs(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_fsinfo(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_close(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_delegpurge(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_delegreturn(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_getfh(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_lock(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_lockt(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_locku(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_openconfirm(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_opendowngrade(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_renew(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_secinfo(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_setclientid(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_setclientidcfrm(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_verify(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_open(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_openattr(struct nfsrv_descript *, int,
+ vnode_t, vnode_t *, fhandle_t *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsrvd_releaselckown(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_pathconf(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_exchangeid(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_createsession(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_sequence(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_reclaimcomplete(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_destroyclientid(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_bindconnsess(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_destroysession(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_freestateid(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_layoutget(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_getdevinfo(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_layoutcommit(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_layoutreturn(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_teststateid(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+int nfsrvd_notsupp(struct nfsrv_descript *, int,
+ vnode_t, NFSPROC_T *, struct nfsexstuff *);
+
+/* nfs_nfsdsocket.c */
+void nfsrvd_rephead(struct nfsrv_descript *);
+void nfsrvd_dorpc(struct nfsrv_descript *, int, u_char *, int, u_int32_t,
+ NFSPROC_T *);
+
+/* nfs_nfsdcache.c */
+void nfsrvd_initcache(void);
+int nfsrvd_getcache(struct nfsrv_descript *);
+struct nfsrvcache *nfsrvd_updatecache(struct nfsrv_descript *);
+void nfsrvd_sentcache(struct nfsrvcache *, int, uint32_t);
+void nfsrvd_cleancache(void);
+void nfsrvd_refcache(struct nfsrvcache *);
+void nfsrvd_derefcache(struct nfsrvcache *);
+void nfsrvd_delcache(struct nfsrvcache *);
+void nfsrc_trimcache(uint64_t, uint32_t, int);
+
+/* nfs_commonsubs.c */
+void nfscl_reqstart(struct nfsrv_descript *, int, struct nfsmount *,
+ u_int8_t *, int, u_int32_t **, struct nfsclsession *, int, int);
+void nfsm_stateidtom(struct nfsrv_descript *, nfsv4stateid_t *, int);
+void nfscl_fillsattr(struct nfsrv_descript *, struct vattr *,
+ vnode_t, int, u_int32_t);
+void newnfs_init(void);
+int nfsaddr_match(int, union nethostaddr *, NFSSOCKADDR_T);
+int nfsaddr2_match(NFSSOCKADDR_T, NFSSOCKADDR_T);
+int nfsm_strtom(struct nfsrv_descript *, const char *, int);
+int nfsm_mbufuio(struct nfsrv_descript *, struct uio *, int);
+int nfsm_fhtom(struct nfsrv_descript *, u_int8_t *, int, int);
+int nfsm_advance(struct nfsrv_descript *, int, int);
+void *nfsm_dissct(struct nfsrv_descript *, int, int);
+void newnfs_trimleading(struct nfsrv_descript *);
+void newnfs_trimtrailing(struct nfsrv_descript *, mbuf_t,
+ caddr_t);
+void newnfs_copycred(struct nfscred *, struct ucred *);
+void newnfs_copyincred(struct ucred *, struct nfscred *);
+int nfsrv_dissectacl(struct nfsrv_descript *, NFSACL_T *, int *,
+ int *, NFSPROC_T *);
+int nfsrv_getattrbits(struct nfsrv_descript *, nfsattrbit_t *, int *,
+ int *);
+int nfsv4_loadattr(struct nfsrv_descript *, vnode_t,
+ struct nfsvattr *, struct nfsfh **, fhandle_t *, int,
+ struct nfsv3_pathconf *, struct statfs *, struct nfsstatfs *,
+ struct nfsfsinfo *, NFSACL_T *,
+ int, int *, u_int32_t *, u_int32_t *, NFSPROC_T *, struct ucred *);
+int nfsv4_lock(struct nfsv4lock *, int, int *, void *, struct mount *);
+void nfsv4_unlock(struct nfsv4lock *, int);
+void nfsv4_relref(struct nfsv4lock *);
+void nfsv4_getref(struct nfsv4lock *, int *, void *, struct mount *);
+int nfsv4_getref_nonblock(struct nfsv4lock *);
+int nfsv4_testlock(struct nfsv4lock *);
+int nfsrv_mtostr(struct nfsrv_descript *, char *, int);
+void nfsrv_cleanusergroup(void);
+int nfsrv_checkutf8(u_int8_t *, int);
+int newnfs_sndlock(int *);
+void newnfs_sndunlock(int *);
+int nfsv4_getipaddr(struct nfsrv_descript *, struct sockaddr_in *,
+ struct sockaddr_in6 *, sa_family_t *, int *);
+int nfsv4_seqsession(uint32_t, uint32_t, uint32_t, struct nfsslot *,
+ struct mbuf **, uint16_t);
+void nfsv4_seqsess_cacherep(uint32_t, struct nfsslot *, int, struct mbuf **);
+void nfsv4_setsequence(struct nfsmount *, struct nfsrv_descript *,
+ struct nfsclsession *, int);
+int nfsv4_sequencelookup(struct nfsmount *, struct nfsclsession *, int *,
+ int *, uint32_t *, uint8_t *);
+void nfsv4_freeslot(struct nfsclsession *, int);
+struct ucred *nfsrv_getgrpscred(struct ucred *);
+struct nfsdevice *nfsv4_findmirror(struct nfsmount *);
+
+/* nfs_clcomsubs.c */
+void nfsm_uiombuf(struct nfsrv_descript *, struct uio *, int);
+struct mbuf *nfsm_uiombuflist(struct uio *, int, struct mbuf **, char **);
+nfsuint64 *nfscl_getcookie(struct nfsnode *, off_t off, int);
+u_int8_t *nfscl_getmyip(struct nfsmount *, struct in6_addr *, int *);
+int nfsm_getfh(struct nfsrv_descript *, struct nfsfh **);
+int nfscl_mtofh(struct nfsrv_descript *, struct nfsfh **,
+ struct nfsvattr *, int *);
+int nfscl_postop_attr(struct nfsrv_descript *, struct nfsvattr *, int *,
+ void *);
+int nfscl_wcc_data(struct nfsrv_descript *, vnode_t,
+ struct nfsvattr *, int *, int *, void *);
+int nfsm_loadattr(struct nfsrv_descript *, struct nfsvattr *);
+int nfscl_request(struct nfsrv_descript *, vnode_t,
+ NFSPROC_T *, struct ucred *, void *);
+
+/* nfs_nfsdsubs.c */
+void nfsd_fhtovp(struct nfsrv_descript *, struct nfsrvfh *, int,
+ vnode_t *, struct nfsexstuff *,
+ mount_t *, int, NFSPROC_T *);
+int nfsd_excred(struct nfsrv_descript *, struct nfsexstuff *, struct ucred *);
+int nfsrv_mtofh(struct nfsrv_descript *, struct nfsrvfh *);
+int nfsrv_putattrbit(struct nfsrv_descript *, nfsattrbit_t *);
+void nfsrv_wcc(struct nfsrv_descript *, int, struct nfsvattr *, int,
+ struct nfsvattr *);
+int nfsv4_fillattr(struct nfsrv_descript *, struct mount *, vnode_t, NFSACL_T *,
+ struct vattr *, fhandle_t *, int, nfsattrbit_t *,
+ struct ucred *, NFSPROC_T *, int, int, int, int, uint64_t, struct statfs *);
+void nfsrv_fillattr(struct nfsrv_descript *, struct nfsvattr *);
+void nfsrv_adj(mbuf_t, int, int);
+void nfsrv_postopattr(struct nfsrv_descript *, int, struct nfsvattr *);
+int nfsd_errmap(struct nfsrv_descript *);
+void nfsv4_uidtostr(uid_t, u_char **, int *, NFSPROC_T *);
+int nfsv4_strtouid(struct nfsrv_descript *, u_char *, int, uid_t *,
+ NFSPROC_T *);
+void nfsv4_gidtostr(gid_t, u_char **, int *, NFSPROC_T *);
+int nfsv4_strtogid(struct nfsrv_descript *, u_char *, int, gid_t *,
+ NFSPROC_T *);
+int nfsrv_checkuidgid(struct nfsrv_descript *, struct nfsvattr *);
+void nfsrv_fixattr(struct nfsrv_descript *, vnode_t,
+ struct nfsvattr *, NFSACL_T *, NFSPROC_T *, nfsattrbit_t *,
+ struct nfsexstuff *);
+int nfsrv_errmoved(int);
+int nfsrv_putreferralattr(struct nfsrv_descript *, nfsattrbit_t *,
+ struct nfsreferral *, int, int *);
+int nfsrv_parsename(struct nfsrv_descript *, char *, u_long *,
+ NFSPATHLEN_T *);
+void nfsd_init(void);
+int nfsd_checkrootexp(struct nfsrv_descript *);
+void nfsd_getminorvers(struct nfsrv_descript *, u_char *, u_char **, int *,
+ u_int32_t *);
+
+/* nfs_clvfsops.c */
+void nfscl_retopts(struct nfsmount *, char *, size_t);
+
+/* nfs_commonport.c */
+int nfsrv_lookupfilename(struct nameidata *, char *, NFSPROC_T *);
+void nfsrv_object_create(vnode_t, NFSPROC_T *);
+int nfsrv_mallocmget_limit(void);
+int nfsvno_v4rootexport(struct nfsrv_descript *);
+void newnfs_portinit(void);
+struct ucred *newnfs_getcred(void);
+void newnfs_setroot(struct ucred *);
+int nfs_catnap(int, int, const char *);
+struct nfsreferral *nfsv4root_getreferral(vnode_t, vnode_t, u_int32_t);
+int nfsvno_pathconf(vnode_t, int, long *, struct ucred *, NFSPROC_T *);
+int nfsrv_atroot(vnode_t, uint64_t *);
+void newnfs_timer(void *);
+int nfs_supportsnfsv4acls(vnode_t);
+
+/* nfs_commonacl.c */
+int nfsrv_dissectace(struct nfsrv_descript *, struct acl_entry *,
+ int *, int *, NFSPROC_T *);
+int nfsrv_buildacl(struct nfsrv_descript *, NFSACL_T *, enum vtype,
+ NFSPROC_T *);
+int nfsrv_compareacl(NFSACL_T *, NFSACL_T *);
+
+/* nfs_clrpcops.c */
+int nfsrpc_null(vnode_t, struct ucred *, NFSPROC_T *);
+int nfsrpc_access(vnode_t, int, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, int *);
+int nfsrpc_accessrpc(vnode_t, u_int32_t, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, u_int32_t *, void *);
+int nfsrpc_open(vnode_t, int, struct ucred *, NFSPROC_T *);
+int nfsrpc_openrpc(struct nfsmount *, vnode_t, u_int8_t *, int, u_int8_t *, int,
+ u_int32_t, struct nfsclopen *, u_int8_t *, int, struct nfscldeleg **, int,
+ u_int32_t, struct ucred *, NFSPROC_T *, int, int);
+int nfsrpc_opendowngrade(vnode_t, u_int32_t, struct nfsclopen *,
+ struct ucred *, NFSPROC_T *);
+int nfsrpc_close(vnode_t, int, NFSPROC_T *);
+int nfsrpc_closerpc(struct nfsrv_descript *, struct nfsmount *,
+ struct nfsclopen *, struct ucred *, NFSPROC_T *, int);
+int nfsrpc_openconfirm(vnode_t, u_int8_t *, int, struct nfsclopen *,
+ struct ucred *, NFSPROC_T *);
+int nfsrpc_setclient(struct nfsmount *, struct nfsclclient *, int,
+ struct ucred *, NFSPROC_T *);
+int nfsrpc_getattr(vnode_t, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, void *);
+int nfsrpc_getattrnovp(struct nfsmount *, u_int8_t *, int, int,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, u_int64_t *, uint32_t *);
+int nfsrpc_setattr(vnode_t, struct vattr *, NFSACL_T *, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_lookup(vnode_t, char *, int, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, int *,
+ void *);
+int nfsrpc_readlink(vnode_t, struct uio *, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_read(vnode_t, struct uio *, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, int *, void *);
+int nfsrpc_write(vnode_t, struct uio *, int *, int *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *, int);
+int nfsrpc_mknod(vnode_t, char *, int, struct vattr *, u_int32_t,
+ enum vtype, struct ucred *, NFSPROC_T *, struct nfsvattr *,
+ struct nfsvattr *, struct nfsfh **, int *, int *, void *);
+int nfsrpc_create(vnode_t, char *, int, struct vattr *, nfsquad_t,
+ int, struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ struct nfsfh **, int *, int *, void *);
+int nfsrpc_remove(vnode_t, char *, int, vnode_t, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, int *, void *);
+int nfsrpc_rename(vnode_t, vnode_t, char *, int, vnode_t, vnode_t, char *, int,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ int *, int *, void *, void *);
+int nfsrpc_link(vnode_t, vnode_t, char *, int,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ int *, int *, void *);
+int nfsrpc_symlink(vnode_t, char *, int, char *, struct vattr *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ struct nfsfh **, int *, int *, void *);
+int nfsrpc_mkdir(vnode_t, char *, int, struct vattr *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ struct nfsfh **, int *, int *, void *);
+int nfsrpc_rmdir(vnode_t, char *, int, struct ucred *, NFSPROC_T *,
+ struct nfsvattr *, int *, void *);
+int nfsrpc_readdir(vnode_t, struct uio *, nfsuint64 *, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, int *, void *);
+int nfsrpc_readdirplus(vnode_t, struct uio *, nfsuint64 *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, int *, void *);
+int nfsrpc_commit(vnode_t, u_quad_t, int, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_advlock(vnode_t, off_t, int, struct flock *, int,
+ struct ucred *, NFSPROC_T *, void *, int);
+int nfsrpc_lockt(struct nfsrv_descript *, vnode_t,
+ struct nfsclclient *, u_int64_t, u_int64_t, struct flock *,
+ struct ucred *, NFSPROC_T *, void *, int);
+int nfsrpc_lock(struct nfsrv_descript *, struct nfsmount *, vnode_t,
+ u_int8_t *, int, struct nfscllockowner *, int, int, u_int64_t,
+ u_int64_t, short, struct ucred *, NFSPROC_T *, int);
+int nfsrpc_statfs(vnode_t, struct nfsstatfs *, struct nfsfsinfo *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_fsinfo(vnode_t, struct nfsfsinfo *, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_pathconf(vnode_t, struct nfsv3_pathconf *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *);
+int nfsrpc_renew(struct nfsclclient *, struct nfsclds *, struct ucred *,
+ NFSPROC_T *);
+int nfsrpc_rellockown(struct nfsmount *, struct nfscllockowner *, uint8_t *,
+ int, struct ucred *, NFSPROC_T *);
+int nfsrpc_getdirpath(struct nfsmount *, u_char *, struct ucred *,
+ NFSPROC_T *);
+int nfsrpc_delegreturn(struct nfscldeleg *, struct ucred *,
+ struct nfsmount *, NFSPROC_T *, int);
+int nfsrpc_getacl(vnode_t, struct ucred *, NFSPROC_T *, NFSACL_T *, void *);
+int nfsrpc_setacl(vnode_t, struct ucred *, NFSPROC_T *, NFSACL_T *, void *);
+int nfsrpc_exchangeid(struct nfsmount *, struct nfsclclient *,
+ struct nfssockreq *, uint32_t, struct nfsclds **, struct ucred *,
+ NFSPROC_T *);
+int nfsrpc_createsession(struct nfsmount *, struct nfsclsession *,
+ struct nfssockreq *, uint32_t, int, struct ucred *, NFSPROC_T *);
+int nfsrpc_destroysession(struct nfsmount *, struct nfsclclient *,
+ struct ucred *, NFSPROC_T *);
+int nfsrpc_destroyclient(struct nfsmount *, struct nfsclclient *,
+ struct ucred *, NFSPROC_T *);
+int nfsrpc_getdeviceinfo(struct nfsmount *, uint8_t *, int, uint32_t *,
+ struct nfscldevinfo **, struct ucred *, NFSPROC_T *);
+int nfsrpc_layoutcommit(struct nfsmount *, uint8_t *, int, int,
+ uint64_t, uint64_t, uint64_t, nfsv4stateid_t *, int, struct ucred *,
+ NFSPROC_T *, void *);
+int nfsrpc_layoutreturn(struct nfsmount *, uint8_t *, int, int, int, uint32_t,
+ int, uint64_t, uint64_t, nfsv4stateid_t *, struct ucred *, NFSPROC_T *,
+ uint32_t, uint32_t, char *);
+int nfsrpc_reclaimcomplete(struct nfsmount *, struct ucred *, NFSPROC_T *);
+int nfscl_doiods(vnode_t, struct uio *, int *, int *, uint32_t, int,
+ struct ucred *, NFSPROC_T *);
+int nfscl_findlayoutforio(struct nfscllayout *, uint64_t, uint32_t,
+ struct nfsclflayout **);
+void nfscl_freenfsclds(struct nfsclds *);
+
+/* nfs_clstate.c */
+int nfscl_open(vnode_t, u_int8_t *, int, u_int32_t, int,
+ struct ucred *, NFSPROC_T *, struct nfsclowner **, struct nfsclopen **,
+ int *, int *, int);
+int nfscl_getstateid(vnode_t, u_int8_t *, int, u_int32_t, int, struct ucred *,
+ NFSPROC_T *, nfsv4stateid_t *, void **);
+void nfscl_ownerrelease(struct nfsmount *, struct nfsclowner *, int, int, int);
+void nfscl_openrelease(struct nfsmount *, struct nfsclopen *, int, int);
+int nfscl_getcl(struct mount *, struct ucred *, NFSPROC_T *, int,
+ struct nfsclclient **);
+struct nfsclclient *nfscl_findcl(struct nfsmount *);
+void nfscl_clientrelease(struct nfsclclient *);
+void nfscl_freelock(struct nfscllock *, int);
+void nfscl_freelockowner(struct nfscllockowner *, int);
+int nfscl_getbytelock(vnode_t, u_int64_t, u_int64_t, short,
+ struct ucred *, NFSPROC_T *, struct nfsclclient *, int, void *, int,
+ u_int8_t *, u_int8_t *, struct nfscllockowner **, int *, int *);
+int nfscl_relbytelock(vnode_t, u_int64_t, u_int64_t,
+ struct ucred *, NFSPROC_T *, int, struct nfsclclient *,
+ void *, int, struct nfscllockowner **, int *);
+int nfscl_checkwritelocked(vnode_t, struct flock *,
+ struct ucred *, NFSPROC_T *, void *, int);
+void nfscl_lockrelease(struct nfscllockowner *, int, int);
+void nfscl_fillclid(u_int64_t, char *, u_int8_t *, u_int16_t);
+void nfscl_filllockowner(void *, u_int8_t *, int);
+void nfscl_freeopen(struct nfsclopen *, int);
+void nfscl_umount(struct nfsmount *, NFSPROC_T *);
+void nfscl_renewthread(struct nfsclclient *, NFSPROC_T *);
+void nfscl_initiate_recovery(struct nfsclclient *);
+int nfscl_hasexpired(struct nfsclclient *, u_int32_t, NFSPROC_T *);
+void nfscl_dumpstate(struct nfsmount *, int, int, int, int);
+void nfscl_dupopen(vnode_t, int);
+int nfscl_getclose(vnode_t, struct nfsclclient **);
+int nfscl_doclose(vnode_t, struct nfsclclient **, NFSPROC_T *);
+void nfsrpc_doclose(struct nfsmount *, struct nfsclopen *, NFSPROC_T *);
+int nfscl_deleg(mount_t, struct nfsclclient *, u_int8_t *, int,
+ struct ucred *, NFSPROC_T *, struct nfscldeleg **);
+void nfscl_lockinit(struct nfsv4lock *);
+void nfscl_lockexcl(struct nfsv4lock *, void *);
+void nfscl_lockunlock(struct nfsv4lock *);
+void nfscl_lockderef(struct nfsv4lock *);
+void nfscl_docb(struct nfsrv_descript *, NFSPROC_T *);
+void nfscl_releasealllocks(struct nfsclclient *, vnode_t, NFSPROC_T *, void *,
+ int);
+int nfscl_lockt(vnode_t, struct nfsclclient *, u_int64_t,
+ u_int64_t, struct flock *, NFSPROC_T *, void *, int);
+int nfscl_mustflush(vnode_t);
+int nfscl_nodeleg(vnode_t, int);
+int nfscl_removedeleg(vnode_t, NFSPROC_T *, nfsv4stateid_t *);
+int nfscl_getref(struct nfsmount *);
+void nfscl_relref(struct nfsmount *);
+int nfscl_renamedeleg(vnode_t, nfsv4stateid_t *, int *, vnode_t,
+ nfsv4stateid_t *, int *, NFSPROC_T *);
+void nfscl_reclaimnode(vnode_t);
+void nfscl_newnode(vnode_t);
+void nfscl_delegmodtime(vnode_t);
+void nfscl_deleggetmodtime(vnode_t, struct timespec *);
+int nfscl_tryclose(struct nfsclopen *, struct ucred *,
+ struct nfsmount *, NFSPROC_T *);
+void nfscl_cleanup(NFSPROC_T *);
+int nfscl_layout(struct nfsmount *, vnode_t, u_int8_t *, int, nfsv4stateid_t *,
+ int, int, struct nfsclflayouthead *, struct nfscllayout **, struct ucred *,
+ NFSPROC_T *);
+struct nfscllayout *nfscl_getlayout(struct nfsclclient *, uint8_t *, int,
+ uint64_t, struct nfsclflayout **, int *);
+void nfscl_dserr(uint32_t, uint32_t, struct nfscldevinfo *,
+ struct nfscllayout *, struct nfsclds *);
+void nfscl_cancelreqs(struct nfsclds *);
+void nfscl_rellayout(struct nfscllayout *, int);
+struct nfscldevinfo *nfscl_getdevinfo(struct nfsclclient *, uint8_t *,
+ struct nfscldevinfo *);
+void nfscl_reldevinfo(struct nfscldevinfo *);
+int nfscl_adddevinfo(struct nfsmount *, struct nfscldevinfo *, int,
+ struct nfsclflayout *);
+void nfscl_freelayout(struct nfscllayout *);
+void nfscl_freeflayout(struct nfsclflayout *);
+void nfscl_freedevinfo(struct nfscldevinfo *);
+int nfscl_layoutcommit(vnode_t, NFSPROC_T *);
+
+/* nfs_clport.c */
+int nfscl_nget(mount_t, vnode_t, struct nfsfh *,
+ struct componentname *, NFSPROC_T *, struct nfsnode **, void *, int);
+NFSPROC_T *nfscl_getparent(NFSPROC_T *);
+void nfscl_start_renewthread(struct nfsclclient *);
+void nfscl_loadsbinfo(struct nfsmount *, struct nfsstatfs *, void *);
+void nfscl_loadfsinfo (struct nfsmount *, struct nfsfsinfo *);
+void nfscl_delegreturn(struct nfscldeleg *, int, struct nfsmount *,
+ struct ucred *, NFSPROC_T *);
+void nfsrvd_cbinit(int);
+int nfscl_checksattr(struct vattr *, struct nfsvattr *);
+int nfscl_ngetreopen(mount_t, u_int8_t *, int, NFSPROC_T *,
+ struct nfsnode **);
+int nfscl_procdoesntexist(u_int8_t *);
+int nfscl_maperr(NFSPROC_T *, int, uid_t, gid_t);
+
+/* nfs_clsubs.c */
+void nfscl_init(void);
+
+/* nfs_clbio.c */
+int ncl_flush(vnode_t, int, NFSPROC_T *, int, int);
+
+/* nfs_clnode.c */
+void ncl_invalcaches(vnode_t);
+
+/* nfs_nfsdport.c */
+int nfsvno_getattr(vnode_t, struct nfsvattr *, struct nfsrv_descript *,
+ NFSPROC_T *, int, nfsattrbit_t *);
+int nfsvno_setattr(vnode_t, struct nfsvattr *, struct ucred *,
+ NFSPROC_T *, struct nfsexstuff *);
+int nfsvno_getfh(vnode_t, fhandle_t *, NFSPROC_T *);
+int nfsvno_accchk(vnode_t, accmode_t, struct ucred *,
+ struct nfsexstuff *, NFSPROC_T *, int, int, u_int32_t *);
+int nfsvno_namei(struct nfsrv_descript *, struct nameidata *,
+ vnode_t, int, struct nfsexstuff *, NFSPROC_T *, vnode_t *);
+void nfsvno_setpathbuf(struct nameidata *, char **, u_long **);
+void nfsvno_relpathbuf(struct nameidata *);
+int nfsvno_readlink(vnode_t, struct ucred *, NFSPROC_T *, mbuf_t *,
+ mbuf_t *, int *);
+int nfsvno_read(vnode_t, off_t, int, struct ucred *, NFSPROC_T *,
+ mbuf_t *, mbuf_t *);
+int nfsvno_write(vnode_t, off_t, int, int, int *, mbuf_t,
+ char *, struct ucred *, NFSPROC_T *);
+int nfsvno_createsub(struct nfsrv_descript *, struct nameidata *,
+ vnode_t *, struct nfsvattr *, int *, int32_t *, NFSDEV_T, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsvno_mknod(struct nameidata *, struct nfsvattr *, struct ucred *,
+ NFSPROC_T *);
+int nfsvno_mkdir(struct nameidata *,
+ struct nfsvattr *, uid_t, struct ucred *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsvno_symlink(struct nameidata *, struct nfsvattr *, char *, int, int,
+ uid_t, struct ucred *, NFSPROC_T *, struct nfsexstuff *);
+int nfsvno_getsymlink(struct nfsrv_descript *, struct nfsvattr *,
+ NFSPROC_T *, char **, int *);
+int nfsvno_removesub(struct nameidata *, int, struct ucred *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsvno_rmdirsub(struct nameidata *, int, struct ucred *, NFSPROC_T *,
+ struct nfsexstuff *);
+int nfsvno_rename(struct nameidata *, struct nameidata *, u_int32_t,
+ u_int32_t, struct ucred *, NFSPROC_T *);
+int nfsvno_link(struct nameidata *, vnode_t, struct ucred *,
+ NFSPROC_T *, struct nfsexstuff *);
+int nfsvno_fsync(vnode_t, u_int64_t, int, struct ucred *, NFSPROC_T *);
+int nfsvno_statfs(vnode_t, struct statfs *);
+void nfsvno_getfs(struct nfsfsinfo *, int);
+void nfsvno_open(struct nfsrv_descript *, struct nameidata *, nfsquad_t,
+ nfsv4stateid_t *, struct nfsstate *, int *, struct nfsvattr *, int32_t *,
+ int, NFSACL_T *, nfsattrbit_t *, struct ucred *, NFSPROC_T *,
+ struct nfsexstuff *, vnode_t *);
+int nfsvno_updfilerev(vnode_t, struct nfsvattr *, struct nfsrv_descript *,
+ NFSPROC_T *);
+int nfsvno_fillattr(struct nfsrv_descript *, struct mount *, vnode_t,
+ struct nfsvattr *, fhandle_t *, int, nfsattrbit_t *,
+ struct ucred *, NFSPROC_T *, int, int, int, int, uint64_t);
+int nfsrv_sattr(struct nfsrv_descript *, vnode_t, struct nfsvattr *, nfsattrbit_t *,
+ NFSACL_T *, NFSPROC_T *);
+int nfsv4_sattr(struct nfsrv_descript *, vnode_t, struct nfsvattr *, nfsattrbit_t *,
+ NFSACL_T *, NFSPROC_T *);
+int nfsvno_checkexp(mount_t, NFSSOCKADDR_T, struct nfsexstuff *,
+ struct ucred **);
+int nfsvno_fhtovp(mount_t, fhandle_t *, NFSSOCKADDR_T, int,
+ vnode_t *, struct nfsexstuff *, struct ucred **);
+vnode_t nfsvno_getvp(fhandle_t *);
+int nfsvno_advlock(vnode_t, int, u_int64_t, u_int64_t, NFSPROC_T *);
+int nfsrv_v4rootexport(void *, struct ucred *, NFSPROC_T *);
+int nfsvno_testexp(struct nfsrv_descript *, struct nfsexstuff *);
+uint32_t nfsrv_hashfh(fhandle_t *);
+uint32_t nfsrv_hashsessionid(uint8_t *);
+void nfsrv_backupstable(void);
+int nfsrv_dsgetdevandfh(struct vnode *, NFSPROC_T *, int *, fhandle_t *,
+ char *);
+int nfsrv_dsgetsockmnt(struct vnode *, int, char *, int *, int *,
+ NFSPROC_T *, struct vnode **, fhandle_t *, char *, char *,
+ struct vnode **, struct nfsmount **, struct nfsmount *, int *, int *);
+int nfsrv_dscreate(struct vnode *, struct vattr *, struct vattr *,
+ fhandle_t *, struct pnfsdsfile *, struct pnfsdsattr *, char *,
+ struct ucred *, NFSPROC_T *, struct vnode **);
+int nfsrv_updatemdsattr(struct vnode *, struct nfsvattr *, NFSPROC_T *);
+void nfsrv_killrpcs(struct nfsmount *);
+int nfsrv_setacl(struct vnode *, NFSACL_T *, struct ucred *, NFSPROC_T *);
+
+/* nfs_commonkrpc.c */
+int newnfs_nmcancelreqs(struct nfsmount *);
+void newnfs_set_sigmask(struct thread *, sigset_t *);
+void newnfs_restore_sigmask(struct thread *, sigset_t *);
+int newnfs_msleep(struct thread *, void *, struct mtx *, int, char *, int);
+int newnfs_request(struct nfsrv_descript *, struct nfsmount *,
+ struct nfsclient *, struct nfssockreq *, vnode_t, NFSPROC_T *,
+ struct ucred *, u_int32_t, u_int32_t, u_char *, int, u_int64_t *,
+ struct nfsclsession *);
+int newnfs_connect(struct nfsmount *, struct nfssockreq *,
+ struct ucred *, NFSPROC_T *, int);
+void newnfs_disconnect(struct nfssockreq *);
+int newnfs_sigintr(struct nfsmount *, NFSPROC_T *);
+
+/* nfs_nfsdkrpc.c */
+int nfsrvd_addsock(struct file *);
+int nfsrvd_nfsd(NFSPROC_T *, struct nfsd_nfsd_args *);
+void nfsrvd_init(int);
+
+/* nfs_clkrpc.c */
+int nfscbd_addsock(struct file *);
+int nfscbd_nfsd(NFSPROC_T *, struct nfsd_nfscbd_args *);
+
diff --git a/freebsd/sys/fs/nfs/nfscl.h b/freebsd/sys/fs/nfs/nfscl.h
new file mode 100644
index 0000000..52da0af
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfscl.h
@@ -0,0 +1,84 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSCL_H
+#define _NFS_NFSCL_H
+
+/*
+ * Extra stuff for a NFSv4 nfsnode.
+ * MALLOC'd to the correct length for the name and file handle.
+ * n4_data has the file handle, followed by the file name.
+ * The macro NFS4NODENAME() returns a pointer to the start of the
+ * name.
+ */
+struct nfsv4node {
+ u_int16_t n4_fhlen;
+ u_int16_t n4_namelen;
+ u_int8_t n4_data[1];
+};
+
+#define NFS4NODENAME(n) (&((n)->n4_data[(n)->n4_fhlen]))
+
+/*
+ * Just a macro to convert the nfscl_reqstart arguments.
+ */
+#define NFSCL_REQSTART(n, p, v) \
+ nfscl_reqstart((n), (p), VFSTONFS((v)->v_mount), \
+ VTONFS(v)->n_fhp->nfh_fh, VTONFS(v)->n_fhp->nfh_len, NULL, \
+ NULL, 0, 0)
+
+/*
+ * These two macros convert between a lease duration and renew interval.
+ * For now, just make the renew interval 1/2 the lease duration.
+ * (They should be inverse operators.)
+ */
+#define NFSCL_RENEW(l) (((l) < 2) ? 1 : ((l) / 2))
+#define NFSCL_LEASE(r) ((r) * 2)
+
+/* This macro checks to see if a forced dismount is about to occur. */
+#define NFSCL_FORCEDISM(m) (((m)->mnt_kern_flag & MNTK_UNMOUNTF) != 0 || \
+ (VFSTONFS(m)->nm_privflag & NFSMNTP_FORCEDISM) != 0)
+
+/*
+ * These flag bits are used for the argument to nfscl_fillsattr() to
+ * indicate special handling of the attributes.
+ */
+#define NFSSATTR_FULL 0x1
+#define NFSSATTR_SIZE0 0x2
+#define NFSSATTR_SIZENEG1 0x4
+#define NFSSATTR_SIZERDEV 0x8
+
+/* Use this macro for debug printfs. */
+#define NFSCL_DEBUG(level, ...) do { \
+ if (nfscl_debuglevel >= (level)) \
+ printf(__VA_ARGS__); \
+ } while (0)
+
+#endif /* _NFS_NFSCL_H */
diff --git a/freebsd/sys/fs/nfs/nfsclstate.h b/freebsd/sys/fs/nfs/nfsclstate.h
new file mode 100644
index 0000000..2ada4bf
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsclstate.h
@@ -0,0 +1,446 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSCLSTATE_H_
+#define _NFS_NFSCLSTATE_H_
+
+/*
+ * Definitions for NFS V4 client state handling.
+ */
+LIST_HEAD(nfsclopenhead, nfsclopen);
+LIST_HEAD(nfscllockownerhead, nfscllockowner);
+SLIST_HEAD(nfscllockownerfhhead, nfscllockownerfh);
+LIST_HEAD(nfscllockhead, nfscllock);
+LIST_HEAD(nfsclhead, nfsclclient);
+LIST_HEAD(nfsclownerhead, nfsclowner);
+TAILQ_HEAD(nfscldeleghead, nfscldeleg);
+LIST_HEAD(nfscldeleghash, nfscldeleg);
+TAILQ_HEAD(nfscllayouthead, nfscllayout);
+LIST_HEAD(nfscllayouthash, nfscllayout);
+LIST_HEAD(nfsclflayouthead, nfsclflayout);
+LIST_HEAD(nfscldevinfohead, nfscldevinfo);
+LIST_HEAD(nfsclrecalllayouthead, nfsclrecalllayout);
+#define NFSCLDELEGHASHSIZE 256
+#define NFSCLDELEGHASH(c, f, l) \
+ (&((c)->nfsc_deleghash[ncl_hash((f), (l)) % NFSCLDELEGHASHSIZE]))
+#define NFSCLLAYOUTHASHSIZE 256
+#define NFSCLLAYOUTHASH(c, f, l) \
+ (&((c)->nfsc_layouthash[ncl_hash((f), (l)) % NFSCLLAYOUTHASHSIZE]))
+
+/* Structure for NFSv4.1 session stuff. */
+struct nfsclsession {
+ struct mtx nfsess_mtx;
+ struct nfsslot nfsess_cbslots[NFSV4_CBSLOTS];
+ nfsquad_t nfsess_clientid;
+ SVCXPRT *nfsess_xprt; /* For backchannel callback */
+ uint32_t nfsess_slotseq[64]; /* Max for 64bit nm_slots */
+ uint64_t nfsess_slots;
+ uint32_t nfsess_sequenceid;
+ uint32_t nfsess_maxcache; /* Max size for cached reply. */
+ uint16_t nfsess_foreslots;
+ uint16_t nfsess_backslots;
+ uint8_t nfsess_sessionid[NFSX_V4SESSIONID];
+ uint8_t nfsess_defunct; /* Non-zero for old sessions */
+};
+
+/*
+ * This structure holds the session, clientid and related information
+ * needed for an NFSv4.1 Meta Data Server (MDS) or Data Server (DS).
+ * It is malloc'd to the correct length.
+ */
+struct nfsclds {
+ TAILQ_ENTRY(nfsclds) nfsclds_list;
+ struct nfsclsession nfsclds_sess;
+ struct mtx nfsclds_mtx;
+ struct nfssockreq *nfsclds_sockp;
+ time_t nfsclds_expire;
+ uint16_t nfsclds_flags;
+ uint16_t nfsclds_servownlen;
+ uint8_t nfsclds_verf[NFSX_VERF];
+ uint8_t nfsclds_serverown[0];
+};
+
+/*
+ * Flags for nfsclds_flags.
+ */
+#define NFSCLDS_HASWRITEVERF 0x0001
+#define NFSCLDS_MDS 0x0002
+#define NFSCLDS_DS 0x0004
+#define NFSCLDS_CLOSED 0x0008
+#define NFSCLDS_SAMECONN 0x0010
+
+struct nfsclclient {
+ LIST_ENTRY(nfsclclient) nfsc_list;
+ struct nfsclownerhead nfsc_owner;
+ struct nfscldeleghead nfsc_deleg;
+ struct nfscldeleghash nfsc_deleghash[NFSCLDELEGHASHSIZE];
+ struct nfscllayouthead nfsc_layout;
+ struct nfscllayouthash nfsc_layouthash[NFSCLLAYOUTHASHSIZE];
+ struct nfscldevinfohead nfsc_devinfo;
+ struct nfsv4lock nfsc_lock;
+ struct proc *nfsc_renewthread;
+ struct nfsmount *nfsc_nmp;
+ time_t nfsc_expire;
+ u_int32_t nfsc_clientidrev;
+ u_int32_t nfsc_rev;
+ u_int32_t nfsc_renew;
+ u_int32_t nfsc_cbident;
+ u_int16_t nfsc_flags;
+ u_int16_t nfsc_idlen;
+ u_int8_t nfsc_id[1]; /* Malloc'd to correct length */
+};
+
+/*
+ * Bits for nfsc_flags.
+ */
+#define NFSCLFLAGS_INITED 0x0001
+#define NFSCLFLAGS_HASCLIENTID 0x0002
+#define NFSCLFLAGS_RECOVER 0x0004
+#define NFSCLFLAGS_UMOUNT 0x0008
+#define NFSCLFLAGS_HASTHREAD 0x0010
+#define NFSCLFLAGS_AFINET6 0x0020
+#define NFSCLFLAGS_EXPIREIT 0x0040
+#define NFSCLFLAGS_FIRSTDELEG 0x0080
+#define NFSCLFLAGS_GOTDELEG 0x0100
+#define NFSCLFLAGS_RECVRINPROG 0x0200
+
+struct nfsclowner {
+ LIST_ENTRY(nfsclowner) nfsow_list;
+ struct nfsclopenhead nfsow_open;
+ struct nfsclclient *nfsow_clp;
+ u_int32_t nfsow_seqid;
+ u_int32_t nfsow_defunct;
+ struct nfsv4lock nfsow_rwlock;
+ u_int8_t nfsow_owner[NFSV4CL_LOCKNAMELEN];
+};
+
+/*
+ * MALLOC'd to the correct length to accommodate the file handle.
+ */
+struct nfscldeleg {
+ TAILQ_ENTRY(nfscldeleg) nfsdl_list;
+ LIST_ENTRY(nfscldeleg) nfsdl_hash;
+ struct nfsclownerhead nfsdl_owner; /* locally issued state */
+ struct nfscllockownerhead nfsdl_lock;
+ nfsv4stateid_t nfsdl_stateid;
+ struct acl_entry nfsdl_ace; /* Delegation ace */
+ struct nfsclclient *nfsdl_clp;
+ struct nfsv4lock nfsdl_rwlock; /* for active I/O ops */
+ struct nfscred nfsdl_cred; /* Cred. used for Open */
+ time_t nfsdl_timestamp; /* used for stale cleanup */
+ u_int64_t nfsdl_sizelimit; /* Limit for file growth */
+ u_int64_t nfsdl_size; /* saved copy of file size */
+ u_int64_t nfsdl_change; /* and change attribute */
+ struct timespec nfsdl_modtime; /* local modify time */
+ u_int16_t nfsdl_fhlen;
+ u_int8_t nfsdl_flags;
+ u_int8_t nfsdl_fh[1]; /* must be last */
+};
+
+/*
+ * nfsdl_flags bits.
+ */
+#define NFSCLDL_READ 0x01
+#define NFSCLDL_WRITE 0x02
+#define NFSCLDL_RECALL 0x04
+#define NFSCLDL_NEEDRECLAIM 0x08
+#define NFSCLDL_ZAPPED 0x10
+#define NFSCLDL_MODTIMESET 0x20
+#define NFSCLDL_DELEGRET 0x40
+
+/*
+ * MALLOC'd to the correct length to accommodate the file handle.
+ */
+struct nfsclopen {
+ LIST_ENTRY(nfsclopen) nfso_list;
+ struct nfscllockownerhead nfso_lock;
+ nfsv4stateid_t nfso_stateid;
+ struct nfsclowner *nfso_own;
+ struct nfscred nfso_cred; /* Cred. used for Open */
+ u_int32_t nfso_mode;
+ u_int32_t nfso_opencnt;
+ u_int16_t nfso_fhlen;
+ u_int8_t nfso_posixlock; /* 1 for POSIX type locking */
+ u_int8_t nfso_fh[1]; /* must be last */
+};
+
+/*
+ * Return values for nfscl_open(). NFSCLOPEN_OK must == 0.
+ */
+#define NFSCLOPEN_OK 0
+#define NFSCLOPEN_DOOPEN 1
+#define NFSCLOPEN_DOOPENDOWNGRADE 2
+#define NFSCLOPEN_SETCRED 3
+
+struct nfscllockowner {
+ LIST_ENTRY(nfscllockowner) nfsl_list;
+ struct nfscllockhead nfsl_lock;
+ struct nfsclopen *nfsl_open;
+ NFSPROC_T *nfsl_inprog;
+ nfsv4stateid_t nfsl_stateid;
+ int nfsl_lockflags;
+ u_int32_t nfsl_seqid;
+ struct nfsv4lock nfsl_rwlock;
+ u_int8_t nfsl_owner[NFSV4CL_LOCKNAMELEN];
+ u_int8_t nfsl_openowner[NFSV4CL_LOCKNAMELEN];
+};
+
+/*
+ * Byte range entry for the above lock owner.
+ */
+struct nfscllock {
+ LIST_ENTRY(nfscllock) nfslo_list;
+ u_int64_t nfslo_first;
+ u_int64_t nfslo_end;
+ short nfslo_type;
+};
+
+/* This structure is used to collect a list of lockowners to free up. */
+struct nfscllockownerfh {
+ SLIST_ENTRY(nfscllockownerfh) nfslfh_list;
+ struct nfscllockownerhead nfslfh_lock;
+ int nfslfh_len;
+ uint8_t nfslfh_fh[NFSX_V4FHMAX];
+};
+
+/*
+ * MALLOC'd to the correct length to accommodate the file handle.
+ */
+struct nfscllayout {
+ TAILQ_ENTRY(nfscllayout) nfsly_list;
+ LIST_ENTRY(nfscllayout) nfsly_hash;
+ nfsv4stateid_t nfsly_stateid;
+ struct nfsv4lock nfsly_lock;
+ uint64_t nfsly_filesid[2];
+ uint64_t nfsly_lastbyte;
+ struct nfsclflayouthead nfsly_flayread;
+ struct nfsclflayouthead nfsly_flayrw;
+ struct nfsclrecalllayouthead nfsly_recall;
+ time_t nfsly_timestamp;
+ struct nfsclclient *nfsly_clp;
+ uint16_t nfsly_flags;
+ uint16_t nfsly_fhlen;
+ uint8_t nfsly_fh[1];
+};
+
+/*
+ * Flags for nfsly_flags.
+ */
+#define NFSLY_FILES 0x0001
+#define NFSLY_BLOCK 0x0002
+#define NFSLY_OBJECT 0x0004
+#define NFSLY_RECALL 0x0008
+#define NFSLY_RECALLFILE 0x0010
+#define NFSLY_RECALLFSID 0x0020
+#define NFSLY_RECALLALL 0x0040
+#define NFSLY_RETONCLOSE 0x0080
+#define NFSLY_WRITTEN 0x0100 /* Has been used to write to a DS. */
+#define NFSLY_FLEXFILE 0x0200
+
+/*
+ * Flex file layout mirror specific stuff for nfsclflayout.
+ */
+struct nfsffm {
+ nfsv4stateid_t st;
+ struct nfscldevinfo *devp;
+ char dev[NFSX_V4DEVICEID];
+ uint32_t eff;
+ uid_t user;
+ gid_t group;
+ struct nfsfh *fh[NFSDEV_MAXVERS];
+ uint16_t fhcnt;
+};
+
+/*
+ * MALLOC'd to the correct length to accommodate the file handle list for File
+ * layout and the list of mirrors for the Flex File Layout.
+ * These hang off of nfsly_flayread and nfsly_flayrw, sorted in increasing
+ * offset order.
+ * The nfsly_flayread list holds the ones with iomode == NFSLAYOUTIOMODE_READ,
+ * whereas the nfsly_flayrw holds the ones with iomode == NFSLAYOUTIOMODE_RW.
+ */
+struct nfsclflayout {
+ LIST_ENTRY(nfsclflayout) nfsfl_list;
+ uint64_t nfsfl_off;
+ uint64_t nfsfl_end;
+ uint32_t nfsfl_iomode;
+ uint16_t nfsfl_flags;
+ union {
+ struct {
+ uint64_t patoff;
+ uint32_t util;
+ uint32_t stripe1;
+ uint8_t dev[NFSX_V4DEVICEID];
+ uint16_t fhcnt;
+ struct nfscldevinfo *devp;
+ } fl;
+ struct {
+ uint64_t stripeunit;
+ uint32_t fflags;
+ uint32_t statshint;
+ uint16_t mirrorcnt;
+ } ff;
+ } nfsfl_un;
+ union {
+ struct nfsfh *fh[0]; /* FH list for DS File layout */
+ struct nfsffm ffm[0]; /* Mirror list for Flex File */
+ } nfsfl_un2; /* Must be last. Malloc'd to correct array length */
+};
+#define nfsfl_patoff nfsfl_un.fl.patoff
+#define nfsfl_util nfsfl_un.fl.util
+#define nfsfl_stripe1 nfsfl_un.fl.stripe1
+#define nfsfl_dev nfsfl_un.fl.dev
+#define nfsfl_fhcnt nfsfl_un.fl.fhcnt
+#define nfsfl_devp nfsfl_un.fl.devp
+#define nfsfl_stripeunit nfsfl_un.ff.stripeunit
+#define nfsfl_fflags nfsfl_un.ff.fflags
+#define nfsfl_statshint nfsfl_un.ff.statshint
+#define nfsfl_mirrorcnt nfsfl_un.ff.mirrorcnt
+#define nfsfl_fh nfsfl_un2.fh
+#define nfsfl_ffm nfsfl_un2.ffm
+
+/*
+ * Flags for nfsfl_flags.
+ */
+#define NFSFL_RECALL 0x0001 /* File layout has been recalled */
+#define NFSFL_FILE 0x0002 /* File layout */
+#define NFSFL_FLEXFILE 0x0004 /* Flex File layout */
+
+/*
+ * Structure that is used to store a LAYOUTRECALL.
+ */
+struct nfsclrecalllayout {
+ LIST_ENTRY(nfsclrecalllayout) nfsrecly_list;
+ uint64_t nfsrecly_off;
+ uint64_t nfsrecly_len;
+ int nfsrecly_recalltype;
+ uint32_t nfsrecly_iomode;
+ uint32_t nfsrecly_stateseqid;
+ uint32_t nfsrecly_stat;
+ uint32_t nfsrecly_op;
+ char nfsrecly_devid[NFSX_V4DEVICEID];
+};
+
+/*
+ * Stores the NFSv4.1 Device Info. Malloc'd to the correct length to
+ * store the list of network connections and list of indices.
+ * nfsdi_data[] is allocated the following way:
+ * - nfsdi_addrcnt * struct nfsclds
+ * - stripe indices, each stored as one byte, since there can be many
+ * of them. (This implies a limit of 256 on nfsdi_addrcnt, since the
+ * indices select which address.)
+ * For Flex File, the addrcnt is always one and no stripe indices exist.
+ */
+struct nfscldevinfo {
+ LIST_ENTRY(nfscldevinfo) nfsdi_list;
+ uint8_t nfsdi_deviceid[NFSX_V4DEVICEID];
+ struct nfsclclient *nfsdi_clp;
+ uint32_t nfsdi_refcnt;
+ uint32_t nfsdi_layoutrefs;
+ union {
+ struct {
+ uint16_t stripecnt;
+ } fl;
+ struct {
+ int versindex;
+ uint32_t vers;
+ uint32_t minorvers;
+ uint32_t rsize;
+ uint32_t wsize;
+ } ff;
+ } nfsdi_un;
+ uint16_t nfsdi_addrcnt;
+ uint16_t nfsdi_flags;
+ struct nfsclds *nfsdi_data[0];
+};
+#define nfsdi_stripecnt nfsdi_un.fl.stripecnt
+#define nfsdi_versindex nfsdi_un.ff.versindex
+#define nfsdi_vers nfsdi_un.ff.vers
+#define nfsdi_minorvers nfsdi_un.ff.minorvers
+#define nfsdi_rsize nfsdi_un.ff.rsize
+#define nfsdi_wsize nfsdi_un.ff.wsize
+
+/* Flags for nfsdi_flags. */
+#define NFSDI_FILELAYOUT 0x0001
+#define NFSDI_FLEXFILE 0x0002
+#define NFSDI_TIGHTCOUPLED 0X0004
+
+/* These inline functions return values from nfsdi_data[]. */
+/*
+ * Return a pointer to the address at "pos".
+ */
+static __inline struct nfsclds **
+nfsfldi_addr(struct nfscldevinfo *ndi, int pos)
+{
+
+ if (pos >= ndi->nfsdi_addrcnt)
+ return (NULL);
+ return (&ndi->nfsdi_data[pos]);
+}
+
+/*
+ * Return the Nth ("pos") stripe index.
+ */
+static __inline int
+nfsfldi_stripeindex(struct nfscldevinfo *ndi, int pos)
+{
+ uint8_t *valp;
+
+ if (pos >= ndi->nfsdi_stripecnt)
+ return (-1);
+ valp = (uint8_t *)&ndi->nfsdi_data[ndi->nfsdi_addrcnt];
+ valp += pos;
+ return ((int)*valp);
+}
+
+/*
+ * Set the Nth ("pos") stripe index to "val".
+ */
+static __inline void
+nfsfldi_setstripeindex(struct nfscldevinfo *ndi, int pos, uint8_t val)
+{
+ uint8_t *valp;
+
+ if (pos >= ndi->nfsdi_stripecnt)
+ return;
+ valp = (uint8_t *)&ndi->nfsdi_data[ndi->nfsdi_addrcnt];
+ valp += pos;
+ *valp = val;
+}
+
+/*
+ * Macro for incrementing the seqid#.
+ */
+#define NFSCL_INCRSEQID(s, n) do { \
+ if (((n)->nd_flag & ND_INCRSEQID)) \
+ (s)++; \
+ } while (0)
+
+#endif /* _NFS_NFSCLSTATE_H_ */
diff --git a/freebsd/sys/fs/nfs/nfsdport.h b/freebsd/sys/fs/nfs/nfsdport.h
new file mode 100644
index 0000000..f683476
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsdport.h
@@ -0,0 +1,125 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * These macros handle nfsvattr fields. They look a bit silly here, but
+ * are quite different for the Darwin port.
+ */
+#define NFSVNO_ATTRINIT(n) (VATTR_NULL(&((n)->na_vattr)))
+#define NFSVNO_SETATTRVAL(n, f, v) ((n)->na_##f = (v))
+#define NFSVNO_SETACTIVE(n, f)
+#define NFSVNO_UNSET(n, f) ((n)->na_##f = VNOVAL)
+#define NFSVNO_NOTSETMODE(n) ((n)->na_mode == ((mode_t)VNOVAL))
+#define NFSVNO_ISSETMODE(n) ((n)->na_mode != ((mode_t)VNOVAL))
+#define NFSVNO_NOTSETUID(n) ((n)->na_uid == ((uid_t)VNOVAL))
+#define NFSVNO_ISSETUID(n) ((n)->na_uid != ((uid_t)VNOVAL))
+#define NFSVNO_NOTSETGID(n) ((n)->na_gid == ((gid_t)VNOVAL))
+#define NFSVNO_ISSETGID(n) ((n)->na_gid != ((gid_t)VNOVAL))
+#define NFSVNO_NOTSETSIZE(n) ((n)->na_size == VNOVAL)
+#define NFSVNO_ISSETSIZE(n) ((n)->na_size != VNOVAL)
+#define NFSVNO_NOTSETATIME(n) ((n)->na_atime.tv_sec == VNOVAL)
+#define NFSVNO_ISSETATIME(n) ((n)->na_atime.tv_sec != VNOVAL)
+#define NFSVNO_NOTSETMTIME(n) ((n)->na_mtime.tv_sec == VNOVAL)
+#define NFSVNO_ISSETMTIME(n) ((n)->na_mtime.tv_sec != VNOVAL)
+
+/*
+ * This structure acts as a "catch-all" for information that
+ * needs to be returned by nfsd_fhtovp().
+ */
+struct nfsexstuff {
+ int nes_exflag; /* export flags */
+ int nes_numsecflavor; /* # of security flavors */
+ int nes_secflavors[MAXSECFLAVORS]; /* and the flavors */
+};
+
+/*
+ * These are NO-OPS for BSD until Isilon upstreams EXITCODE support.
+ * EXITCODE is an in-memory ring buffer that holds the routines failing status.
+ * This is a valuable tool to use when debugging and analyzing issues.
+ * In addition to recording a routine's failing status, it offers
+ * logging of routines for call stack tracing.
+ * EXITCODE should be used only in routines that return a true errno value, as
+ * that value will be formatted to a displayable errno string. Routines that
+ * return regular int status that are not true errno should not set EXITCODE.
+ * If you want to log routine tracing, you can add EXITCODE(0) to any routine.
+ * NFS extended the EXITCODE with EXITCODE2 to record either the routine's
+ * exit errno status or the nd_repstat.
+ */
+#define NFSEXITCODE(error)
+#define NFSEXITCODE2(error, nd)
+
+#define NFSVNO_EXINIT(e) ((e)->nes_exflag = 0)
+#define NFSVNO_EXPORTED(e) ((e)->nes_exflag & MNT_EXPORTED)
+#define NFSVNO_EXRDONLY(e) ((e)->nes_exflag & MNT_EXRDONLY)
+#define NFSVNO_EXPORTANON(e) ((e)->nes_exflag & MNT_EXPORTANON)
+#define NFSVNO_EXSTRICTACCESS(e) ((e)->nes_exflag & MNT_EXSTRICTACCESS)
+#define NFSVNO_EXV4ONLY(e) ((e)->nes_exflag & MNT_EXV4ONLY)
+
+#define NFSVNO_SETEXRDONLY(e) ((e)->nes_exflag = (MNT_EXPORTED|MNT_EXRDONLY))
+
+#define NFSVNO_CMPFH(f1, f2) \
+ ((f1)->fh_fsid.val[0] == (f2)->fh_fsid.val[0] && \
+ (f1)->fh_fsid.val[1] == (f2)->fh_fsid.val[1] && \
+ bcmp(&(f1)->fh_fid, &(f2)->fh_fid, sizeof(struct fid)) == 0)
+
+#define NFSLOCKHASH(f) \
+ (&nfslockhash[nfsrv_hashfh(f) % nfsrv_lockhashsize])
+
+#define NFSFPVNODE(f) ((struct vnode *)((f)->f_data))
+#define NFSFPCRED(f) ((f)->f_cred)
+#define NFSFPFLAG(f) ((f)->f_flag)
+
+#define NFSNAMEICNDSET(n, c, o, f) do { \
+ (n)->cn_cred = (c); \
+ (n)->cn_nameiop = (o); \
+ (n)->cn_flags = (f); \
+ } while (0)
+
+/*
+ * A little bit of Darwin vfs kpi.
+ */
+#define vnode_mount(v) ((v)->v_mount)
+#define vfs_statfs(m) (&((m)->mnt_stat))
+
+#define NFSPATHLEN_T size_t
+
+/*
+ * These are set to the minimum and maximum size of a server file
+ * handle.
+ */
+#define NFSRV_MINFH (sizeof (fhandle_t))
+#define NFSRV_MAXFH (sizeof (fhandle_t))
+
+/* Use this macro for debug printfs. */
+#define NFSD_DEBUG(level, ...) do { \
+ if (nfsd_debuglevel >= (level)) \
+ printf(__VA_ARGS__); \
+ } while (0)
+
diff --git a/freebsd/sys/fs/nfs/nfskpiport.h b/freebsd/sys/fs/nfs/nfskpiport.h
new file mode 100644
index 0000000..f428d9d
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfskpiport.h
@@ -0,0 +1,75 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSKPIPORT_H_
+#define _NFS_NFSKPIPORT_H_
+/*
+ * These definitions are needed since the generic code is now using Darwin8
+ * KPI stuff. (I know, seems a bit silly, but I want the code to build on
+ * Darwin8 and hopefully subsequent releases from Apple.)
+ */
+typedef struct mount * mount_t;
+#define vfs_statfs(m) (&((m)->mnt_stat))
+#define vfs_flags(m) ((m)->mnt_flag)
+
+typedef struct vnode * vnode_t;
+#define vnode_mount(v) ((v)->v_mount)
+#define vnode_vtype(v) ((v)->v_type)
+
+typedef struct mbuf * mbuf_t;
+#define mbuf_freem(m) m_freem(m)
+#define mbuf_data(m) mtod((m), void *)
+#define mbuf_len(m) ((m)->m_len)
+#define mbuf_next(m) ((m)->m_next)
+#define mbuf_setlen(m, l) ((m)->m_len = (l))
+#define mbuf_setnext(m, p) ((m)->m_next = (p))
+#define mbuf_pkthdr_len(m) ((m)->m_pkthdr.len)
+#define mbuf_pkthdr_setlen(m, l) ((m)->m_pkthdr.len = (l))
+#define mbuf_pkthdr_setrcvif(m, p) ((m)->m_pkthdr.rcvif = (p))
+
+/*
+ * This stuff is needed by Darwin for handling the uio structure.
+ */
+#define CAST_USER_ADDR_T(a) (a)
+#define CAST_DOWN(c, a) ((c) (a))
+#define uio_uio_resid(p) ((p)->uio_resid)
+#define uio_uio_resid_add(p, v) ((p)->uio_resid += (v))
+#define uio_uio_resid_set(p, v) ((p)->uio_resid = (v))
+#define uio_iov_base(p) ((p)->uio_iov->iov_base)
+#define uio_iov_base_add(p, v) do { \
+ char *pp; \
+ pp = (char *)(p)->uio_iov->iov_base; \
+ pp += (v); \
+ (p)->uio_iov->iov_base = (void *)pp; \
+ } while (0)
+#define uio_iov_len(p) ((p)->uio_iov->iov_len)
+#define uio_iov_len_add(p, v) ((p)->uio_iov->iov_len += (v))
+
+#endif /* _NFS_NFSKPIPORT_H */
diff --git a/freebsd/sys/fs/nfs/nfsm_subs.h b/freebsd/sys/fs/nfs/nfsm_subs.h
new file mode 100644
index 0000000..72ebbdb
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsm_subs.h
@@ -0,0 +1,146 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSM_SUBS_H_
+#define _NFS_NFSM_SUBS_H_
+
+
+/*
+ * These macros do strange and peculiar things to mbuf chains for
+ * the assistance of the nfs code. To attempt to use them for any
+ * other purpose will be dangerous. (they make weird assumptions)
+ */
+
+#ifndef APPLE
+/*
+ * First define what the actual subs. return
+ */
+#define NFSM_DATAP(m, s) (m)->m_data += (s)
+
+/*
+ * Now for the macros that do the simple stuff and call the functions
+ * for the hard stuff.
+ * They use fields in struct nfsrv_descript to handle the mbuf queues.
+ * Replace most of the macro with an inline function, to minimize
+ * the machine code. The inline functions in lower case can be called
+ * directly, bypassing the macro.
+ */
+static __inline void *
+nfsm_build(struct nfsrv_descript *nd, int siz)
+{
+ void *retp;
+ struct mbuf *mb2;
+
+ if (siz > M_TRAILINGSPACE(nd->nd_mb)) {
+ NFSMCLGET(mb2, M_NOWAIT);
+ if (siz > MLEN)
+ panic("build > MLEN");
+ mbuf_setlen(mb2, 0);
+ nd->nd_bpos = NFSMTOD(mb2, caddr_t);
+ nd->nd_mb->m_next = mb2;
+ nd->nd_mb = mb2;
+ }
+ retp = (void *)(nd->nd_bpos);
+ nd->nd_mb->m_len += siz;
+ nd->nd_bpos += siz;
+ return (retp);
+}
+
+#define NFSM_BUILD(a, c, s) ((a) = (c)nfsm_build(nd, (s)))
+
+static __inline void *
+nfsm_dissect(struct nfsrv_descript *nd, int siz)
+{
+ int tt1;
+ void *retp;
+
+ tt1 = NFSMTOD(nd->nd_md, caddr_t) + nd->nd_md->m_len - nd->nd_dpos;
+ if (tt1 >= siz) {
+ retp = (void *)nd->nd_dpos;
+ nd->nd_dpos += siz;
+ } else {
+ retp = nfsm_dissct(nd, siz, M_WAITOK);
+ }
+ return (retp);
+}
+
+static __inline void *
+nfsm_dissect_nonblock(struct nfsrv_descript *nd, int siz)
+{
+ int tt1;
+ void *retp;
+
+ tt1 = NFSMTOD(nd->nd_md, caddr_t) + nd->nd_md->m_len - nd->nd_dpos;
+ if (tt1 >= siz) {
+ retp = (void *)nd->nd_dpos;
+ nd->nd_dpos += siz;
+ } else {
+ retp = nfsm_dissct(nd, siz, M_NOWAIT);
+ }
+ return (retp);
+}
+
+#define NFSM_DISSECT(a, c, s) \
+ do { \
+ (a) = (c)nfsm_dissect(nd, (s)); \
+ if ((a) == NULL) { \
+ error = EBADRPC; \
+ goto nfsmout; \
+ } \
+ } while (0)
+
+#define NFSM_DISSECT_NONBLOCK(a, c, s) \
+ do { \
+ (a) = (c)nfsm_dissect_nonblock(nd, (s)); \
+ if ((a) == NULL) { \
+ error = EBADRPC; \
+ goto nfsmout; \
+ } \
+ } while (0)
+#endif /* !APPLE */
+
+#define NFSM_STRSIZ(s, m) \
+ do { \
+ tl = (u_int32_t *)nfsm_dissect(nd, NFSX_UNSIGNED); \
+ if (!tl || ((s) = fxdr_unsigned(int32_t, *tl)) > (m)) { \
+ error = EBADRPC; \
+ goto nfsmout; \
+ } \
+ } while (0)
+
+#define NFSM_RNDUP(a) (((a)+3)&(~0x3))
+
+#endif /* _NFS_NFSM_SUBS_H_ */
diff --git a/freebsd/sys/fs/nfs/nfsport.h b/freebsd/sys/fs/nfs/nfsport.h
new file mode 100644
index 0000000..8abb6a5
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsport.h
@@ -0,0 +1,1086 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSPORT_H_
+#define _NFS_NFSPORT_H_
+
+/*
+ * In general, I'm not fond of #includes in .h files, but this seems
+ * to be the cleanest way to handle #include files for the ports.
+ */
+#ifdef _KERNEL
+#include <sys/unistd.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/dirent.h>
+#include <sys/domain.h>
+#include <sys/fcntl.h>
+#include <sys/file.h>
+#include <sys/filedesc.h>
+#include <sys/jail.h>
+#include <sys/kernel.h>
+#include <sys/lockf.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/mount.h>
+#include <sys/mutex.h>
+#include <sys/namei.h>
+#include <sys/proc.h>
+#include <sys/protosw.h>
+#include <sys/reboot.h>
+#include <sys/resourcevar.h>
+#include <sys/signalvar.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/stat.h>
+#include <sys/syslog.h>
+#include <sys/sysproto.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/vnode.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/acl.h>
+#include <sys/module.h>
+#include <sys/sysent.h>
+#include <sys/syscall.h>
+#include <sys/priv.h>
+#include <sys/kthread.h>
+#include <sys/syscallsubr.h>
+#include <net/if.h>
+#include <net/if_var.h>
+#include <net/radix.h>
+#include <net/route.h>
+#include <net/if_dl.h>
+#include <netinet/in.h>
+#include <netinet/in_pcb.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/tcp.h>
+#include <netinet/tcp_fsm.h>
+#include <netinet/tcp_seq.h>
+#include <netinet/tcp_timer.h>
+#include <netinet/tcp_var.h>
+#include <machine/in_cksum.h>
+#include <crypto/des/des.h>
+#include <sys/md5.h>
+#include <rpc/rpc.h>
+#include <rpc/rpcsec_gss.h>
+
+/*
+ * For Darwin, these functions should be "static" when built in a kext.
+ * (This is always defined as nil otherwise.)
+ */
+#define APPLESTATIC
+#include <ufs/ufs/dir.h>
+#include <ufs/ufs/quota.h>
+#include <ufs/ufs/inode.h>
+#include <ufs/ufs/extattr.h>
+#include <ufs/ufs/ufsmount.h>
+#include <vm/uma.h>
+#include <vm/vm.h>
+#include <vm/vm_object.h>
+#include <vm/vm_extern.h>
+#include <nfs/nfssvc.h>
+#include "opt_nfs.h"
+#include "opt_ufs.h"
+
+/*
+ * These types must be defined before the nfs includes.
+ */
+#define NFSSOCKADDR_T struct sockaddr *
+#define NFSPROC_T struct thread
+#define NFSDEV_T dev_t
+#define NFSSVCARGS nfssvc_args
+#define NFSACL_T struct acl
+
+/*
+ * These should be defined as the types used for the corresponding VOP's
+ * argument type.
+ */
+#define NFS_ACCESS_ARGS struct vop_access_args
+#define NFS_OPEN_ARGS struct vop_open_args
+#define NFS_GETATTR_ARGS struct vop_getattr_args
+#define NFS_LOOKUP_ARGS struct vop_lookup_args
+#define NFS_READDIR_ARGS struct vop_readdir_args
+
+/*
+ * Allocate mbufs. Must succeed and never set the mbuf ptr to NULL.
+ */
+#define NFSMGET(m) do { \
+ MGET((m), M_WAITOK, MT_DATA); \
+ while ((m) == NULL ) { \
+ (void) nfs_catnap(PZERO, 0, "nfsmget"); \
+ MGET((m), M_WAITOK, MT_DATA); \
+ } \
+ } while (0)
+#define NFSMGETHDR(m) do { \
+ MGETHDR((m), M_WAITOK, MT_DATA); \
+ while ((m) == NULL ) { \
+ (void) nfs_catnap(PZERO, 0, "nfsmget"); \
+ MGETHDR((m), M_WAITOK, MT_DATA); \
+ } \
+ } while (0)
+#define NFSMCLGET(m, w) do { \
+ MGET((m), M_WAITOK, MT_DATA); \
+ while ((m) == NULL ) { \
+ (void) nfs_catnap(PZERO, 0, "nfsmget"); \
+ MGET((m), M_WAITOK, MT_DATA); \
+ } \
+ MCLGET((m), (w)); \
+ } while (0)
+#define NFSMCLGETHDR(m, w) do { \
+ MGETHDR((m), M_WAITOK, MT_DATA); \
+ while ((m) == NULL ) { \
+ (void) nfs_catnap(PZERO, 0, "nfsmget"); \
+ MGETHDR((m), M_WAITOK, MT_DATA); \
+ } \
+ } while (0)
+#define NFSMTOD mtod
+
+/*
+ * Client side constant for size of a lockowner name.
+ */
+#define NFSV4CL_LOCKNAMELEN 12
+
+/*
+ * Type for a mutex lock.
+ */
+#define NFSMUTEX_T struct mtx
+
+#endif /* _KERNEL */
+
+/*
+ * NFSv4 Operation numbers.
+ */
+#define NFSV4OP_ACCESS 3
+#define NFSV4OP_CLOSE 4
+#define NFSV4OP_COMMIT 5
+#define NFSV4OP_CREATE 6
+#define NFSV4OP_DELEGPURGE 7
+#define NFSV4OP_DELEGRETURN 8
+#define NFSV4OP_GETATTR 9
+#define NFSV4OP_GETFH 10
+#define NFSV4OP_LINK 11
+#define NFSV4OP_LOCK 12
+#define NFSV4OP_LOCKT 13
+#define NFSV4OP_LOCKU 14
+#define NFSV4OP_LOOKUP 15
+#define NFSV4OP_LOOKUPP 16
+#define NFSV4OP_NVERIFY 17
+#define NFSV4OP_OPEN 18
+#define NFSV4OP_OPENATTR 19
+#define NFSV4OP_OPENCONFIRM 20
+#define NFSV4OP_OPENDOWNGRADE 21
+#define NFSV4OP_PUTFH 22
+#define NFSV4OP_PUTPUBFH 23
+#define NFSV4OP_PUTROOTFH 24
+#define NFSV4OP_READ 25
+#define NFSV4OP_READDIR 26
+#define NFSV4OP_READLINK 27
+#define NFSV4OP_REMOVE 28
+#define NFSV4OP_RENAME 29
+#define NFSV4OP_RENEW 30
+#define NFSV4OP_RESTOREFH 31
+#define NFSV4OP_SAVEFH 32
+#define NFSV4OP_SECINFO 33
+#define NFSV4OP_SETATTR 34
+#define NFSV4OP_SETCLIENTID 35
+#define NFSV4OP_SETCLIENTIDCFRM 36
+#define NFSV4OP_VERIFY 37
+#define NFSV4OP_WRITE 38
+#define NFSV4OP_RELEASELCKOWN 39
+
+/*
+ * Must be one greater than the last Operation#.
+ */
+#define NFSV4OP_NOPS 40
+
+/*
+ * Additional Ops for NFSv4.1.
+ */
+#define NFSV4OP_BACKCHANNELCTL 40
+#define NFSV4OP_BINDCONNTOSESS 41
+#define NFSV4OP_EXCHANGEID 42
+#define NFSV4OP_CREATESESSION 43
+#define NFSV4OP_DESTROYSESSION 44
+#define NFSV4OP_FREESTATEID 45
+#define NFSV4OP_GETDIRDELEG 46
+#define NFSV4OP_GETDEVINFO 47
+#define NFSV4OP_GETDEVLIST 48
+#define NFSV4OP_LAYOUTCOMMIT 49
+#define NFSV4OP_LAYOUTGET 50
+#define NFSV4OP_LAYOUTRETURN 51
+#define NFSV4OP_SECINFONONAME 52
+#define NFSV4OP_SEQUENCE 53
+#define NFSV4OP_SETSSV 54
+#define NFSV4OP_TESTSTATEID 55
+#define NFSV4OP_WANTDELEG 56
+#define NFSV4OP_DESTROYCLIENTID 57
+#define NFSV4OP_RECLAIMCOMPL 58
+
+/*
+ * Must be one more than last op#.
+ * NFSv4.2 isn't implemented yet, but define the op# limit for it.
+ */
+#define NFSV41_NOPS 59
+#define NFSV42_NOPS 72
+
+/* Quirky case if the illegal op code */
+#define NFSV4OP_OPILLEGAL 10044
+
+/*
+ * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV42_NOPS.
+ */
+#define NFSV4OP_SYMLINK (NFSV42_NOPS)
+#define NFSV4OP_MKDIR (NFSV42_NOPS + 1)
+#define NFSV4OP_RMDIR (NFSV42_NOPS + 2)
+#define NFSV4OP_READDIRPLUS (NFSV42_NOPS + 3)
+#define NFSV4OP_MKNOD (NFSV42_NOPS + 4)
+#define NFSV4OP_FSSTAT (NFSV42_NOPS + 5)
+#define NFSV4OP_FSINFO (NFSV42_NOPS + 6)
+#define NFSV4OP_PATHCONF (NFSV42_NOPS + 7)
+#define NFSV4OP_V3CREATE (NFSV42_NOPS + 8)
+
+/*
+ * This is the count of the fake operations listed above.
+ */
+#define NFSV4OP_FAKENOPS 9
+
+/*
+ * and the Callback OPs
+ */
+#define NFSV4OP_CBGETATTR 3
+#define NFSV4OP_CBRECALL 4
+
+/*
+ * Must be one greater than the last Callback Operation# for NFSv4.0.
+ */
+#define NFSV4OP_CBNOPS 5
+
+/*
+ * Additional Callback Ops for NFSv4.1 only.
+ */
+#define NFSV4OP_CBLAYOUTRECALL 5
+#define NFSV4OP_CBNOTIFY 6
+#define NFSV4OP_CBPUSHDELEG 7
+#define NFSV4OP_CBRECALLANY 8
+#define NFSV4OP_CBRECALLOBJAVAIL 9
+#define NFSV4OP_CBRECALLSLOT 10
+#define NFSV4OP_CBSEQUENCE 11
+#define NFSV4OP_CBWANTCANCELLED 12
+#define NFSV4OP_CBNOTIFYLOCK 13
+#define NFSV4OP_CBNOTIFYDEVID 14
+
+#define NFSV41_CBNOPS 15
+#define NFSV42_CBNOPS 16
+
+/*
+ * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
+ * numbers used by NFSv4.
+ * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
+ * one greater than the last number.
+ */
+#ifndef NFS_V3NPROCS
+#define NFS_V3NPROCS 22
+
+#define NFSPROC_LOOKUPP 22
+#define NFSPROC_SETCLIENTID 23
+#define NFSPROC_SETCLIENTIDCFRM 24
+#define NFSPROC_LOCK 25
+#define NFSPROC_LOCKU 26
+#define NFSPROC_OPEN 27
+#define NFSPROC_CLOSE 28
+#define NFSPROC_OPENCONFIRM 29
+#define NFSPROC_LOCKT 30
+#define NFSPROC_OPENDOWNGRADE 31
+#define NFSPROC_RENEW 32
+#define NFSPROC_PUTROOTFH 33
+#define NFSPROC_RELEASELCKOWN 34
+#define NFSPROC_DELEGRETURN 35
+#define NFSPROC_RETDELEGREMOVE 36
+#define NFSPROC_RETDELEGRENAME1 37
+#define NFSPROC_RETDELEGRENAME2 38
+#define NFSPROC_GETACL 39
+#define NFSPROC_SETACL 40
+
+/*
+ * Must be defined as one higher than the last Proc# above.
+ */
+#define NFSV4_NPROCS 41
+
+/* Additional procedures for NFSv4.1. */
+#define NFSPROC_EXCHANGEID 41
+#define NFSPROC_CREATESESSION 42
+#define NFSPROC_DESTROYSESSION 43
+#define NFSPROC_DESTROYCLIENT 44
+#define NFSPROC_FREESTATEID 45
+#define NFSPROC_LAYOUTGET 46
+#define NFSPROC_GETDEVICEINFO 47
+#define NFSPROC_LAYOUTCOMMIT 48
+#define NFSPROC_LAYOUTRETURN 49
+#define NFSPROC_RECLAIMCOMPL 50
+#define NFSPROC_WRITEDS 51
+#define NFSPROC_READDS 52
+#define NFSPROC_COMMITDS 53
+#define NFSPROC_OPENLAYGET 54
+#define NFSPROC_CREATELAYGET 55
+
+/*
+ * Must be defined as one higher than the last NFSv4.1 Proc# above.
+ */
+#define NFSV41_NPROCS 56
+
+#endif /* NFS_V3NPROCS */
+
+/*
+ * New stats structure.
+ * The vers field will be set to NFSSTATS_V1 by the caller.
+ */
+#define NFSSTATS_V1 1
+struct nfsstatsv1 {
+ int vers; /* Set to version requested by caller. */
+ uint64_t attrcache_hits;
+ uint64_t attrcache_misses;
+ uint64_t lookupcache_hits;
+ uint64_t lookupcache_misses;
+ uint64_t direofcache_hits;
+ uint64_t direofcache_misses;
+ uint64_t accesscache_hits;
+ uint64_t accesscache_misses;
+ uint64_t biocache_reads;
+ uint64_t read_bios;
+ uint64_t read_physios;
+ uint64_t biocache_writes;
+ uint64_t write_bios;
+ uint64_t write_physios;
+ uint64_t biocache_readlinks;
+ uint64_t readlink_bios;
+ uint64_t biocache_readdirs;
+ uint64_t readdir_bios;
+ uint64_t rpccnt[NFSV41_NPROCS + 13];
+ uint64_t rpcretries;
+ uint64_t srvrpccnt[NFSV42_NOPS + NFSV4OP_FAKENOPS];
+ uint64_t srvrpc_errs;
+ uint64_t srv_errs;
+ uint64_t rpcrequests;
+ uint64_t rpctimeouts;
+ uint64_t rpcunexpected;
+ uint64_t rpcinvalid;
+ uint64_t srvcache_inproghits;
+ uint64_t srvcache_idemdonehits;
+ uint64_t srvcache_nonidemdonehits;
+ uint64_t srvcache_misses;
+ uint64_t srvcache_tcppeak;
+ int srvcache_size; /* Updated by atomic_xx_int(). */
+ uint64_t srvclients;
+ uint64_t srvopenowners;
+ uint64_t srvopens;
+ uint64_t srvlockowners;
+ uint64_t srvlocks;
+ uint64_t srvdelegates;
+ uint64_t cbrpccnt[NFSV42_CBNOPS];
+ uint64_t clopenowners;
+ uint64_t clopens;
+ uint64_t cllockowners;
+ uint64_t cllocks;
+ uint64_t cldelegates;
+ uint64_t cllocalopenowners;
+ uint64_t cllocalopens;
+ uint64_t cllocallockowners;
+ uint64_t cllocallocks;
+ uint64_t srvstartcnt;
+ uint64_t srvdonecnt;
+ uint64_t srvbytes[NFSV42_NOPS + NFSV4OP_FAKENOPS];
+ uint64_t srvops[NFSV42_NOPS + NFSV4OP_FAKENOPS];
+ struct bintime srvduration[NFSV42_NOPS + NFSV4OP_FAKENOPS];
+ struct bintime busyfrom;
+ struct bintime busytime;
+};
+
+/*
+ * Old stats structure.
+ */
+struct ext_nfsstats {
+ int attrcache_hits;
+ int attrcache_misses;
+ int lookupcache_hits;
+ int lookupcache_misses;
+ int direofcache_hits;
+ int direofcache_misses;
+ int accesscache_hits;
+ int accesscache_misses;
+ int biocache_reads;
+ int read_bios;
+ int read_physios;
+ int biocache_writes;
+ int write_bios;
+ int write_physios;
+ int biocache_readlinks;
+ int readlink_bios;
+ int biocache_readdirs;
+ int readdir_bios;
+ int rpccnt[NFSV4_NPROCS];
+ int rpcretries;
+ int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS];
+ int srvrpc_errs;
+ int srv_errs;
+ int rpcrequests;
+ int rpctimeouts;
+ int rpcunexpected;
+ int rpcinvalid;
+ int srvcache_inproghits;
+ int srvcache_idemdonehits;
+ int srvcache_nonidemdonehits;
+ int srvcache_misses;
+ int srvcache_tcppeak;
+ int srvcache_size;
+ int srvclients;
+ int srvopenowners;
+ int srvopens;
+ int srvlockowners;
+ int srvlocks;
+ int srvdelegates;
+ int cbrpccnt[NFSV4OP_CBNOPS];
+ int clopenowners;
+ int clopens;
+ int cllockowners;
+ int cllocks;
+ int cldelegates;
+ int cllocalopenowners;
+ int cllocalopens;
+ int cllocallockowners;
+ int cllocallocks;
+};
+
+#ifdef _KERNEL
+/*
+ * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
+ */
+#ifndef NFS_NPROCS
+#define NFS_NPROCS NFSV4_NPROCS
+#endif
+
+#include <fs/nfs/nfskpiport.h>
+#include <fs/nfs/nfsdport.h>
+#include <fs/nfs/rpcv2.h>
+#include <fs/nfs/nfsproto.h>
+#include <fs/nfs/nfs.h>
+#include <fs/nfs/nfsclstate.h>
+#include <fs/nfs/nfs_var.h>
+#include <fs/nfs/nfsm_subs.h>
+#include <fs/nfs/nfsrvcache.h>
+#include <fs/nfs/nfsrvstate.h>
+#include <fs/nfs/xdr_subs.h>
+#include <fs/nfs/nfscl.h>
+#include <nfsclient/nfsargs.h>
+#include <fs/nfsclient/nfsmount.h>
+
+/*
+ * Just to keep nfs_var.h happy.
+ */
+struct nfs_vattr {
+ int junk;
+};
+
+struct nfsvattr {
+ struct vattr na_vattr;
+ nfsattrbit_t na_suppattr;
+ u_int64_t na_mntonfileno;
+ u_int64_t na_filesid[2];
+};
+
+#define na_type na_vattr.va_type
+#define na_mode na_vattr.va_mode
+#define na_nlink na_vattr.va_nlink
+#define na_uid na_vattr.va_uid
+#define na_gid na_vattr.va_gid
+#define na_fsid na_vattr.va_fsid
+#define na_fileid na_vattr.va_fileid
+#define na_size na_vattr.va_size
+#define na_blocksize na_vattr.va_blocksize
+#define na_atime na_vattr.va_atime
+#define na_mtime na_vattr.va_mtime
+#define na_ctime na_vattr.va_ctime
+#define na_gen na_vattr.va_gen
+#define na_flags na_vattr.va_flags
+#define na_rdev na_vattr.va_rdev
+#define na_bytes na_vattr.va_bytes
+#define na_filerev na_vattr.va_filerev
+#define na_vaflags na_vattr.va_vaflags
+
+#include <fs/nfsclient/nfsnode.h>
+
+/*
+ * This is the header structure used for the lists, etc. (It has the
+ * above record in it.
+ */
+struct nfsrv_stablefirst {
+ LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */
+ time_t nsf_eograce; /* Time grace period ends */
+ time_t *nsf_bootvals; /* Previous boottime values */
+ struct file *nsf_fp; /* File table pointer */
+ u_char nsf_flags; /* NFSNSF_ flags */
+ struct nfsf_rec nsf_rec; /* and above first record */
+};
+#define nsf_lease nsf_rec.lease
+#define nsf_numboots nsf_rec.numboots
+
+/* NFSNSF_xxx flags */
+#define NFSNSF_UPDATEDONE 0x01
+#define NFSNSF_GRACEOVER 0x02
+#define NFSNSF_NEEDLOCK 0x04
+#define NFSNSF_EXPIREDCLIENT 0x08
+#define NFSNSF_NOOPENS 0x10
+#define NFSNSF_OK 0x20
+
+/*
+ * Maximum number of boot times allowed in record. Although there is
+ * really no need for a fixed upper bound, this serves as a sanity check
+ * for a corrupted file.
+ */
+#define NFSNSF_MAXNUMBOOTS 10000
+
+/*
+ * This structure defines the other records in the file. The
+ * nst_client array is actually the size of the client string name.
+ */
+struct nfst_rec {
+ u_int16_t len;
+ u_char flag;
+ u_char client[1];
+};
+/* and the values for flag */
+#define NFSNST_NEWSTATE 0x1
+#define NFSNST_REVOKE 0x2
+#define NFSNST_GOTSTATE 0x4
+#define NFSNST_RECLAIMED 0x8
+
+/*
+ * This structure is linked onto nfsrv_stablefirst for the duration of
+ * reclaim.
+ */
+struct nfsrv_stable {
+ LIST_ENTRY(nfsrv_stable) nst_list;
+ struct nfsclient *nst_clp;
+ struct nfst_rec nst_rec;
+};
+#define nst_timestamp nst_rec.timestamp
+#define nst_len nst_rec.len
+#define nst_flag nst_rec.flag
+#define nst_client nst_rec.client
+
+/*
+ * At some point the server will run out of kernel storage for
+ * state structures. For FreeBSD5.2, this results in a panic
+ * kmem_map is full. It happens at well over 1000000 opens plus
+ * locks on a PIII-800 with 256Mbytes, so that is where I've set
+ * the limit. If your server panics due to too many opens/locks,
+ * decrease the size of NFSRV_V4STATELIMIT. If you find the server
+ * returning NFS4ERR_RESOURCE a lot and have lots of memory, try
+ * increasing it.
+ */
+#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */
+
+/*
+ * The type required differs with BSDen (just the second arg).
+ */
+void nfsrvd_rcv(struct socket *, void *, int);
+
+/*
+ * Macros for handling socket addresses. (Hopefully this makes the code
+ * more portable, since I've noticed some 'BSD don't have sockaddrs in
+ * mbufs any more.)
+ */
+#define NFSSOCKADDR(a, t) ((t)(a))
+#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s))
+
+/*
+ * These should be defined as a process or thread structure, as required
+ * for signal handling, etc.
+ */
+#define NFSNEWCRED(c) (crdup(c))
+#define NFSPROCCRED(p) ((p)->td_ucred)
+#define NFSFREECRED(c) (crfree(c))
+#define NFSUIOPROC(u, p) ((u)->uio_td = NULL)
+#define NFSPROCP(p) ((p)->td_proc)
+
+/*
+ * Define these so that cn_hash and its length is ignored.
+ */
+#define NFSCNHASHZERO(c)
+#define NFSCNHASH(c, v)
+#define NCHNAMLEN 9999999
+
+/*
+ * These macros are defined to initialize and set the timer routine.
+ */
+#define NFS_TIMERINIT \
+ newnfs_timer(NULL)
+
+/*
+ * Handle SMP stuff:
+ */
+#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex
+#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex)
+#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex)
+#define NFSSTATEMUTEXPTR (&nfs_state_mutex)
+#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex
+#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex)
+#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex)
+#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex
+#define NFSSOCKMUTEXPTR (&nfs_slock_mutex)
+#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex)
+#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex)
+#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex
+#define NFSNAMEIDMUTEXPTR (&nfs_nameid_mutex)
+#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex)
+#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex)
+#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED)
+#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex
+#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex)
+#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex)
+#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex)
+#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx
+#define NFSDLOCKMUTEXPTR (&newnfsd_mtx)
+#define NFSD_LOCK() mtx_lock(&newnfsd_mtx)
+#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx)
+#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED)
+#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED)
+#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex
+#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex)
+#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex)
+#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex)
+#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx))
+#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx))
+#define NFSASSERTNODE(n) mtx_assert(&((n)->n_mtx), MA_OWNED)
+#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx))
+#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx))
+#define NFSLOCKIOD() mtx_lock(&ncl_iod_mutex)
+#define NFSUNLOCKIOD() mtx_unlock(&ncl_iod_mutex)
+#define NFSASSERTIOD() mtx_assert(&ncl_iod_mutex, MA_OWNED)
+#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx))
+#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx))
+#define NFSPROCLISTLOCK() sx_slock(&allproc_lock)
+#define NFSPROCLISTUNLOCK() sx_sunlock(&allproc_lock)
+#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx))
+#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx))
+#define NFSLOCKDS(d) mtx_lock(&((d)->nfsclds_mtx))
+#define NFSUNLOCKDS(d) mtx_unlock(&((d)->nfsclds_mtx))
+#define NFSSESSIONMUTEXPTR(s) (&((s)->mtx))
+#define NFSLOCKSESSION(s) mtx_lock(&((s)->mtx))
+#define NFSUNLOCKSESSION(s) mtx_unlock(&((s)->mtx))
+#define NFSLAYOUTMUTEXPTR(l) (&((l)->mtx))
+#define NFSLOCKLAYOUT(l) mtx_lock(&((l)->mtx))
+#define NFSUNLOCKLAYOUT(l) mtx_unlock(&((l)->mtx))
+#define NFSDDSMUTEXPTR (&nfsrv_dslock_mtx)
+#define NFSDDSLOCK() mtx_lock(&nfsrv_dslock_mtx)
+#define NFSDDSUNLOCK() mtx_unlock(&nfsrv_dslock_mtx)
+#define NFSDDONTLISTMUTEXPTR (&nfsrv_dontlistlock_mtx)
+#define NFSDDONTLISTLOCK() mtx_lock(&nfsrv_dontlistlock_mtx)
+#define NFSDDONTLISTUNLOCK() mtx_unlock(&nfsrv_dontlistlock_mtx)
+#define NFSDRECALLMUTEXPTR (&nfsrv_recalllock_mtx)
+#define NFSDRECALLLOCK() mtx_lock(&nfsrv_recalllock_mtx)
+#define NFSDRECALLUNLOCK() mtx_unlock(&nfsrv_recalllock_mtx)
+
+/*
+ * Use these macros to initialize/free a mutex.
+ */
+#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF)
+#define NFSFREEMUTEX(m) mtx_destroy((m))
+
+int nfsmsleep(void *, void *, int, const char *, struct timespec *);
+
+/*
+ * And weird vm stuff in the nfs server.
+ */
+#define PDIRUNLOCK 0x0
+#define MAX_COMMIT_COUNT (1024 * 1024)
+
+/*
+ * Define these to handle the type of va_rdev.
+ */
+#define NFSMAKEDEV(m, n) makedev((m), (n))
+#define NFSMAJOR(d) major(d)
+#define NFSMINOR(d) minor(d)
+
+/*
+ * The vnode tag for nfsv4root.
+ */
+#define VT_NFSV4ROOT "nfsv4root"
+
+/*
+ * Define whatever it takes to do a vn_rdwr().
+ */
+#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \
+ vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p))
+
+/*
+ * Macros for handling memory for different BSDen.
+ * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping
+ * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap
+ * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same
+ * NFSBZERO(cp, len) - set len bytes to 0x0
+ */
+#define NFSBCOPY(s, d, l) bcopy((s), (d), (l))
+#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l))
+#define NFSBCMP(s, d, l) bcmp((s), (d), (l))
+#define NFSBZERO(s, l) bzero((s), (l))
+
+/*
+ * Some queue.h files don't have these dfined in them.
+ */
+#define LIST_END(head) NULL
+#define SLIST_END(head) NULL
+#define TAILQ_END(head) NULL
+
+/*
+ * This must be defined to be a global variable that increments once
+ * per second, but never stops or goes backwards, even when a "date"
+ * command changes the TOD clock. It is used for delta times for
+ * leases, etc.
+ */
+#define NFSD_MONOSEC time_uptime
+
+/*
+ * Declare the malloc types.
+ */
+MALLOC_DECLARE(M_NEWNFSRVCACHE);
+MALLOC_DECLARE(M_NEWNFSDCLIENT);
+MALLOC_DECLARE(M_NEWNFSDSTATE);
+MALLOC_DECLARE(M_NEWNFSDLOCK);
+MALLOC_DECLARE(M_NEWNFSDLOCKFILE);
+MALLOC_DECLARE(M_NEWNFSSTRING);
+MALLOC_DECLARE(M_NEWNFSUSERGROUP);
+MALLOC_DECLARE(M_NEWNFSDREQ);
+MALLOC_DECLARE(M_NEWNFSFH);
+MALLOC_DECLARE(M_NEWNFSCLOWNER);
+MALLOC_DECLARE(M_NEWNFSCLOPEN);
+MALLOC_DECLARE(M_NEWNFSCLDELEG);
+MALLOC_DECLARE(M_NEWNFSCLCLIENT);
+MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER);
+MALLOC_DECLARE(M_NEWNFSCLLOCK);
+MALLOC_DECLARE(M_NEWNFSDIROFF);
+MALLOC_DECLARE(M_NEWNFSV4NODE);
+MALLOC_DECLARE(M_NEWNFSDIRECTIO);
+MALLOC_DECLARE(M_NEWNFSMNT);
+MALLOC_DECLARE(M_NEWNFSDROLLBACK);
+MALLOC_DECLARE(M_NEWNFSLAYOUT);
+MALLOC_DECLARE(M_NEWNFSFLAYOUT);
+MALLOC_DECLARE(M_NEWNFSDEVINFO);
+MALLOC_DECLARE(M_NEWNFSSOCKREQ);
+MALLOC_DECLARE(M_NEWNFSCLDS);
+MALLOC_DECLARE(M_NEWNFSLAYRECALL);
+MALLOC_DECLARE(M_NEWNFSDSESSION);
+#define M_NFSRVCACHE M_NEWNFSRVCACHE
+#define M_NFSDCLIENT M_NEWNFSDCLIENT
+#define M_NFSDSTATE M_NEWNFSDSTATE
+#define M_NFSDLOCK M_NEWNFSDLOCK
+#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE
+#define M_NFSSTRING M_NEWNFSSTRING
+#define M_NFSUSERGROUP M_NEWNFSUSERGROUP
+#define M_NFSDREQ M_NEWNFSDREQ
+#define M_NFSFH M_NEWNFSFH
+#define M_NFSCLOWNER M_NEWNFSCLOWNER
+#define M_NFSCLOPEN M_NEWNFSCLOPEN
+#define M_NFSCLDELEG M_NEWNFSCLDELEG
+#define M_NFSCLCLIENT M_NEWNFSCLCLIENT
+#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER
+#define M_NFSCLLOCK M_NEWNFSCLLOCK
+#define M_NFSDIROFF M_NEWNFSDIROFF
+#define M_NFSV4NODE M_NEWNFSV4NODE
+#define M_NFSDIRECTIO M_NEWNFSDIRECTIO
+#define M_NFSDROLLBACK M_NEWNFSDROLLBACK
+#define M_NFSLAYOUT M_NEWNFSLAYOUT
+#define M_NFSFLAYOUT M_NEWNFSFLAYOUT
+#define M_NFSDEVINFO M_NEWNFSDEVINFO
+#define M_NFSSOCKREQ M_NEWNFSSOCKREQ
+#define M_NFSCLDS M_NEWNFSCLDS
+#define M_NFSLAYRECALL M_NEWNFSLAYRECALL
+#define M_NFSDSESSION M_NEWNFSDSESSION
+
+#define NFSINT_SIGMASK(set) \
+ (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
+ SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
+ SIGISMEMBER(set, SIGQUIT))
+
+/*
+ * Convert a quota block count to byte count.
+ */
+#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b)
+
+/*
+ * Define this as the largest file size supported. (It should probably
+ * be available via a VFS_xxx Op, but it isn't.
+ */
+#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000)
+
+/*
+ * Set this macro to index() or strchr(), whichever is supported.
+ */
+#define STRCHR(s, c) strchr((s), (c))
+
+/*
+ * Set the n_time in the client write rpc, as required.
+ */
+#define NFSWRITERPC_SETTIME(w, n, a, v4) \
+ do { \
+ if (w) { \
+ NFSLOCKNODE(n); \
+ (n)->n_mtime = (a)->na_mtime; \
+ if (v4) \
+ (n)->n_change = (a)->na_filerev; \
+ NFSUNLOCKNODE(n); \
+ } \
+ } while (0)
+
+/*
+ * Fake value, just to make the client work.
+ */
+#define NFS_LATTR_NOSHRINK 1
+
+/*
+ * Prototypes for functions where the arguments vary for different ports.
+ */
+int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *,
+ int, int);
+int newnfs_realign(struct mbuf **, int);
+bool ncl_pager_setsize(struct vnode *vp, u_quad_t *nsizep);
+
+/*
+ * If the port runs on an SMP box that can enforce Atomic ops with low
+ * overheads, define these as atomic increments/decrements. If not,
+ * don't worry about it, since these are used for stats that can be
+ * "out by one" without disastrous consequences.
+ */
+#define NFSINCRGLOBAL(a) ((a)++)
+
+/*
+ * Assorted funky stuff to make things work under Darwin8.
+ */
+/*
+ * These macros checks for a field in vattr being set.
+ */
+#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL)
+#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL)
+
+/*
+ * Manipulate mount flags.
+ */
+#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */
+#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */
+#define NFSSTA_OPENMODE 0x00200000 /* Must use correct open mode */
+#define NFSSTA_FLEXFILE 0x00800000 /* Use Flex File Layout */
+#define NFSSTA_NOLAYOUTCOMMIT 0x04000000 /* Don't do LayoutCommit */
+#define NFSSTA_SESSPERSIST 0x08000000 /* Has a persistent session */
+#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
+#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
+#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */
+#define NFSSTA_PNFS 0x80000000 /* pNFS is enabled */
+
+#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3)
+#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4)
+#define NFSHASNFSV4N(n) ((n)->nm_minorvers > 0)
+#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
+#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO)
+#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID)
+#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530)
+#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
+#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT)
+#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT)
+#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT))
+#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR)
+#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD)
+#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB)
+#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME)
+#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY)
+#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY)
+#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
+#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID)
+#define NFSHASPNFSOPT(n) ((n)->nm_flag & NFSMNT_PNFS)
+#define NFSHASNOLAYOUTCOMMIT(n) ((n)->nm_state & NFSSTA_NOLAYOUTCOMMIT)
+#define NFSHASSESSPERSIST(n) ((n)->nm_state & NFSSTA_SESSPERSIST)
+#define NFSHASPNFS(n) ((n)->nm_state & NFSSTA_PNFS)
+#define NFSHASFLEXFILE(n) ((n)->nm_state & NFSSTA_FLEXFILE)
+#define NFSHASOPENMODE(n) ((n)->nm_state & NFSSTA_OPENMODE)
+#define NFSHASONEOPENOWN(n) (((n)->nm_flag & NFSMNT_ONEOPENOWN) != 0 && \
+ (n)->nm_minorvers > 0)
+
+/*
+ * Gets the stats field out of the mount structure.
+ */
+#define vfs_statfs(m) (&((m)->mnt_stat))
+
+/*
+ * Set boottime.
+ */
+#define NFSSETBOOTTIME(b) (getboottime(&b))
+
+/*
+ * The size of directory blocks in the buffer cache.
+ * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!!
+ */
+#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */
+
+/*
+ * Define these macros to access mnt_flag fields.
+ */
+#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY)
+#endif /* _KERNEL */
+
+/*
+ * Define a structure similar to ufs_args for use in exporting the V4 root.
+ */
+struct nfsex_args {
+ char *fspec;
+ struct export_args export;
+};
+
+/*
+ * These export flags should be defined, but there are no bits left.
+ * Maybe a separate mnt_exflag field could be added or the mnt_flag
+ * field increased to 64 bits?
+ */
+#ifndef MNT_EXSTRICTACCESS
+#define MNT_EXSTRICTACCESS 0x0
+#endif
+#ifndef MNT_EXV4ONLY
+#define MNT_EXV4ONLY 0x0
+#endif
+
+#ifdef _KERNEL
+/*
+ * Define this to invalidate the attribute cache for the nfs node.
+ */
+#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0)
+
+/* Used for FreeBSD only */
+void nfsd_mntinit(void);
+
+/*
+ * Define these for vnode lock/unlock ops.
+ *
+ * These are good abstractions to macro out, so that they can be added to
+ * later, for debugging or stats, etc.
+ */
+#define NFSVOPLOCK(v, f) vn_lock((v), (f))
+#define NFSVOPUNLOCK(v, f) VOP_UNLOCK((v), (f))
+#define NFSVOPISLOCKED(v) VOP_ISLOCKED((v))
+
+/*
+ * Define ncl_hash().
+ */
+#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT))
+
+int newnfs_iosize(struct nfsmount *);
+
+int newnfs_vncmpf(struct vnode *, void *);
+
+#ifndef NFS_MINDIRATTRTIMO
+#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
+#endif
+#ifndef NFS_MAXDIRATTRTIMO
+#define NFS_MAXDIRATTRTIMO 60
+#endif
+
+/*
+ * Nfs outstanding request list element
+ */
+struct nfsreq {
+ TAILQ_ENTRY(nfsreq) r_chain;
+ u_int32_t r_flags; /* flags on request, see below */
+ struct nfsmount *r_nmp; /* Client mnt ptr */
+ struct mtx r_mtx; /* Mutex lock for this structure */
+};
+
+#ifndef NFS_MAXBSIZE
+#define NFS_MAXBSIZE (maxbcachebuf)
+#endif
+
+/*
+ * This macro checks to see if issuing of delegations is allowed for this
+ * vnode.
+ */
+#ifdef VV_DISABLEDELEG
+#define NFSVNO_DELEGOK(v) \
+ ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0)
+#else
+#define NFSVNO_DELEGOK(v) (1)
+#endif
+
+/*
+ * Name used by getnewvnode() to describe filesystem, "nfs".
+ * For performance reasons it is useful to have the same string
+ * used in both places that call getnewvnode().
+ */
+extern const char nfs_vnode_tag[];
+
+/*
+ * Check for the errors that indicate a DS should be disabled.
+ * ENXIO indicates that the krpc cannot do an RPC on the DS.
+ * EIO is returned by the RPC as an indication of I/O problems on the
+ * server.
+ * Are there other fatal errors?
+ */
+#define nfsds_failerr(e) ((e) == ENXIO || (e) == EIO)
+
+/*
+ * Get a pointer to the MDS session, which is always the first element
+ * in the list.
+ * This macro can only be safely used when the NFSLOCKMNT() lock is held.
+ * The inline function can be used when the lock isn't held.
+ */
+#define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess))
+
+static __inline struct nfsclsession *
+nfsmnt_mdssession(struct nfsmount *nmp)
+{
+ struct nfsclsession *tsep;
+
+ tsep = NULL;
+ mtx_lock(&nmp->nm_mtx);
+ if (TAILQ_FIRST(&nmp->nm_sess) != NULL)
+ tsep = NFSMNT_MDSSESSION(nmp);
+ mtx_unlock(&nmp->nm_mtx);
+ return (tsep);
+}
+
+#endif /* _KERNEL */
+
+#endif /* _NFS_NFSPORT_H */
diff --git a/freebsd/sys/fs/nfs/nfsproto.h b/freebsd/sys/fs/nfs/nfsproto.h
new file mode 100644
index 0000000..2e9f6d7
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsproto.h
@@ -0,0 +1,1426 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSPROTO_H_
+#define _NFS_NFSPROTO_H_
+
+/*
+ * nfs definitions as per the Version 2, 3 and 4 specs
+ */
+
+/*
+ * Constants as defined in the NFS Version 2, 3 and 4 specs.
+ * "NFS: Network File System Protocol Specification" RFC1094
+ * and in the "NFS: Network File System Version 3 Protocol
+ * Specification"
+ */
+
+#define NFS_PORT 2049
+#define NFS_PROG 100003
+#define NFS_CALLBCKPROG 0x40000000 /* V4 only */
+#define NFS_VER2 2
+#define NFS_VER3 3
+#define NFS_VER4 4
+#define NFS_V2MAXDATA 8192
+#define NFS_MAXDGRAMDATA 16384
+#define NFS_MAXPATHLEN 1024
+#define NFS_MAXNAMLEN 255
+/*
+ * Calculating the maximum XDR overhead for an NFS RPC isn't easy.
+ * NFS_MAXPKTHDR is antiquated and assumes AUTH_SYS over UDP.
+ * NFS_MAXXDR should be sufficient for all NFS versions over TCP.
+ * It includes:
+ * - Maximum RPC message header. It can include 2 400byte authenticators plus
+ * a machine name of unlimited length, although it is usually relatively
+ * small.
+ * - XDR overheads for the NFSv4 compound. This can include Owner and
+ * Owner_group strings, which are usually fairly small, but are allowed
+ * to be up to 1024 bytes each.
+ * 4096 is overkill, but should always be sufficient.
+ */
+#define NFS_MAXPKTHDR 404
+#define NFS_MAXXDR 4096
+#define NFS_MAXPACKET (NFS_SRVMAXIO + NFS_MAXXDR)
+#define NFS_MINPACKET 20
+#define NFS_FABLKSIZE 512 /* Size in bytes of a block wrt fa_blocks */
+#define NFSV4_MINORVERSION 0 /* V4 Minor version */
+#define NFSV41_MINORVERSION 1 /* V4 Minor version */
+#define NFSV4_CBVERS 1 /* V4 CB Version */
+#define NFSV41_CBVERS 4 /* V4.1 CB Version */
+#define NFSV4_SMALLSTR 50 /* Strings small enough for stack */
+
+/*
+ * This value isn't a fixed value in the RFCs.
+ * It is the maximum data size supported by NFSv3 or NFSv4 over TCP for
+ * the server. It should be set to the I/O size preferred by ZFS or
+ * MAXBSIZE, whichever is greater.
+ * ZFS currently prefers 128K.
+ * It used to be called NFS_MAXDATA, but has been renamed to clarify that
+ * it refers to server side only and doesn't conflict with the NFS_MAXDATA
+ * defined in rpcsvc/nfs_prot.h for userland.
+ */
+#define NFS_SRVMAXIO (128 * 1024)
+
+/* Stat numbers for rpc returns (version 2, 3 and 4) */
+/*
+ * These numbers are hard-wired in the RFCs, so they can't be changed.
+ * The code currently assumes that the ones < 10000 are the same as
+ * sys/errno.h and that sys/errno.h will never go as high as 10000.
+ * If the value in sys/errno.h of any entry listed below is changed,
+ * the NFS code must be modified to do the mapping between them.
+ * (You can ignore NFSERR_WFLUSH, since it is never actually used.)
+ */
+#define NFSERR_OK 0
+#define NFSERR_PERM 1
+#define NFSERR_NOENT 2
+#define NFSERR_IO 5
+#define NFSERR_NXIO 6
+#define NFSERR_ACCES 13
+#define NFSERR_EXIST 17
+#define NFSERR_XDEV 18 /* Version 3, 4 only */
+#define NFSERR_NODEV 19
+#define NFSERR_NOTDIR 20
+#define NFSERR_ISDIR 21
+#define NFSERR_INVAL 22 /* Version 3, 4 only */
+#define NFSERR_FBIG 27
+#define NFSERR_NOSPC 28
+#define NFSERR_ROFS 30
+#define NFSERR_MLINK 31 /* Version 3, 4 only */
+#define NFSERR_NAMETOL 63
+#define NFSERR_NOTEMPTY 66
+#define NFSERR_DQUOT 69
+#define NFSERR_STALE 70
+#define NFSERR_REMOTE 71 /* Version 3 only */
+#define NFSERR_WFLUSH 99 /* Version 2 only */
+#define NFSERR_BADHANDLE 10001 /* These are Version 3, 4 only */
+#define NFSERR_NOT_SYNC 10002 /* Version 3 Only */
+#define NFSERR_BAD_COOKIE 10003
+#define NFSERR_NOTSUPP 10004
+#define NFSERR_TOOSMALL 10005
+#define NFSERR_SERVERFAULT 10006
+#define NFSERR_BADTYPE 10007
+#define NFSERR_DELAY 10008 /* Called NFSERR_JUKEBOX for V3 */
+#define NFSERR_SAME 10009 /* These are Version 4 only */
+#define NFSERR_DENIED 10010
+#define NFSERR_EXPIRED 10011
+#define NFSERR_LOCKED 10012
+#define NFSERR_GRACE 10013
+#define NFSERR_FHEXPIRED 10014
+#define NFSERR_SHAREDENIED 10015
+#define NFSERR_WRONGSEC 10016
+#define NFSERR_CLIDINUSE 10017
+#define NFSERR_RESOURCE 10018
+#define NFSERR_MOVED 10019
+#define NFSERR_NOFILEHANDLE 10020
+#define NFSERR_MINORVERMISMATCH 10021
+#define NFSERR_STALECLIENTID 10022
+#define NFSERR_STALESTATEID 10023
+#define NFSERR_OLDSTATEID 10024
+#define NFSERR_BADSTATEID 10025
+#define NFSERR_BADSEQID 10026
+#define NFSERR_NOTSAME 10027
+#define NFSERR_LOCKRANGE 10028
+#define NFSERR_SYMLINK 10029
+#define NFSERR_RESTOREFH 10030
+#define NFSERR_LEASEMOVED 10031
+#define NFSERR_ATTRNOTSUPP 10032
+#define NFSERR_NOGRACE 10033
+#define NFSERR_RECLAIMBAD 10034
+#define NFSERR_RECLAIMCONFLICT 10035
+#define NFSERR_BADXDR 10036
+#define NFSERR_LOCKSHELD 10037
+#define NFSERR_OPENMODE 10038
+#define NFSERR_BADOWNER 10039
+#define NFSERR_BADCHAR 10040
+#define NFSERR_BADNAME 10041
+#define NFSERR_BADRANGE 10042
+#define NFSERR_LOCKNOTSUPP 10043
+#define NFSERR_OPILLEGAL 10044
+#define NFSERR_DEADLOCK 10045
+#define NFSERR_FILEOPEN 10046
+#define NFSERR_ADMINREVOKED 10047
+#define NFSERR_CBPATHDOWN 10048
+
+/* NFSv4.1 specific errors. */
+#define NFSERR_BADIOMODE 10049
+#define NFSERR_BADLAYOUT 10050
+#define NFSERR_BADSESSIONDIGEST 10051
+#define NFSERR_BADSESSION 10052
+#define NFSERR_BADSLOT 10053
+#define NFSERR_COMPLETEALREADY 10054
+#define NFSERR_NOTBNDTOSESS 10055
+#define NFSERR_DELEGALREADYWANT 10056
+#define NFSERR_BACKCHANBUSY 10057
+#define NFSERR_LAYOUTTRYLATER 10058
+#define NFSERR_LAYOUTUNAVAIL 10059
+#define NFSERR_NOMATCHLAYOUT 10060
+#define NFSERR_RECALLCONFLICT 10061
+#define NFSERR_UNKNLAYOUTTYPE 10062
+#define NFSERR_SEQMISORDERED 10063
+#define NFSERR_SEQUENCEPOS 10064
+#define NFSERR_REQTOOBIG 10065
+#define NFSERR_REPTOOBIG 10066
+#define NFSERR_REPTOOBIGTOCACHE 10067
+#define NFSERR_RETRYUNCACHEDREP 10068
+#define NFSERR_UNSAFECOMPOUND 10069
+#define NFSERR_TOOMANYOPS 10070
+#define NFSERR_OPNOTINSESS 10071
+#define NFSERR_HASHALGUNSUPP 10072
+#define NFSERR_CLIENTIDBUSY 10074
+#define NFSERR_PNFSIOHOLE 10075
+#define NFSERR_SEQFALSERETRY 10076
+#define NFSERR_BADHIGHSLOT 10077
+#define NFSERR_DEADSESSION 10078
+#define NFSERR_ENCRALGUNSUPP 10079
+#define NFSERR_PNFSNOLAYOUT 10080
+#define NFSERR_NOTONLYOP 10081
+#define NFSERR_WRONGCRED 10082
+#define NFSERR_WRONGTYPE 10083
+#define NFSERR_DIRDELEGUNAVAIL 10084
+#define NFSERR_REJECTDELEG 10085
+#define NFSERR_RETURNCONFLICT 10086
+#define NFSERR_DELEGREVOKED 10087
+
+#define NFSERR_STALEWRITEVERF 30001 /* Fake return for nfs_commit() */
+#define NFSERR_DONTREPLY 30003 /* Don't process request */
+#define NFSERR_RETVOID 30004 /* Return void, not error */
+#define NFSERR_REPLYFROMCACHE 30005 /* Reply from recent request cache */
+#define NFSERR_STALEDONTRECOVER 30006 /* Don't initiate recovery */
+
+#define NFSERR_RPCERR 0x40000000 /* Mark an RPC layer error */
+#define NFSERR_AUTHERR 0x80000000 /* Mark an authentication error */
+
+#define NFSERR_RPCMISMATCH (NFSERR_RPCERR | RPC_MISMATCH)
+#define NFSERR_PROGUNAVAIL (NFSERR_RPCERR | RPC_PROGUNAVAIL)
+#define NFSERR_PROGMISMATCH (NFSERR_RPCERR | RPC_PROGMISMATCH)
+#define NFSERR_PROGNOTV4 (NFSERR_RPCERR | 0xffff)
+#define NFSERR_PROCUNAVAIL (NFSERR_RPCERR | RPC_PROCUNAVAIL)
+#define NFSERR_GARBAGE (NFSERR_RPCERR | RPC_GARBAGE)
+
+/* Sizes in bytes of various nfs rpc components */
+#define NFSX_UNSIGNED 4
+#define NFSX_HYPER (2 * NFSX_UNSIGNED)
+
+/* specific to NFS Version 2 */
+#define NFSX_V2FH 32
+#define NFSX_V2FATTR 68
+#define NFSX_V2SATTR 32
+#define NFSX_V2COOKIE 4
+#define NFSX_V2STATFS 20
+
+/* specific to NFS Version 3 */
+#define NFSX_V3FHMAX 64 /* max. allowed by protocol */
+#define NFSX_V3FATTR 84
+#define NFSX_V3SATTR 60 /* max. all fields filled in */
+#define NFSX_V3SRVSATTR (sizeof (struct nfsv3_sattr))
+#define NFSX_V3POSTOPATTR (NFSX_V3FATTR + NFSX_UNSIGNED)
+#define NFSX_V3WCCDATA (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)
+#define NFSX_V3STATFS 52
+#define NFSX_V3FSINFO 48
+#define NFSX_V3PATHCONF 24
+
+/* specific to NFS Version 4 */
+#define NFSX_V4FHMAX 128
+#define NFSX_V4FSID (2 * NFSX_HYPER)
+#define NFSX_V4SPECDATA (2 * NFSX_UNSIGNED)
+#define NFSX_V4TIME (NFSX_HYPER + NFSX_UNSIGNED)
+#define NFSX_V4SETTIME (NFSX_UNSIGNED + NFSX_V4TIME)
+#define NFSX_V4SESSIONID 16
+#define NFSX_V4DEVICEID 16
+#define NFSX_V4PNFSFH (sizeof(fhandle_t) + 1)
+#define NFSX_V4FILELAYOUT (4 * NFSX_UNSIGNED + NFSX_V4DEVICEID + \
+ NFSX_HYPER + NFSM_RNDUP(NFSX_V4PNFSFH))
+#define NFSX_V4FLEXLAYOUT(m) (NFSX_HYPER + 3 * NFSX_UNSIGNED + \
+ ((m) * (NFSX_V4DEVICEID + NFSX_STATEID + NFSM_RNDUP(NFSX_V4PNFSFH) + \
+ 8 * NFSX_UNSIGNED)))
+
+/* sizes common to multiple NFS versions */
+#define NFSX_FHMAX (NFSX_V4FHMAX)
+#define NFSX_MYFH (sizeof (fhandle_t)) /* size this server uses */
+#define NFSX_VERF 8
+#define NFSX_STATEIDOTHER 12
+#define NFSX_STATEID (NFSX_UNSIGNED + NFSX_STATEIDOTHER)
+#define NFSX_GSSH 12
+
+/* variants for multiple versions */
+#define NFSX_STATFS(v3) ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)
+
+/*
+ * Beware. NFSPROC_NULL and friends are defined in
+ * <rpcsvc/nfs_prot.h> as well and the numbers are different.
+ */
+#ifndef NFSPROC_NULL
+/* nfs rpc procedure numbers (before version mapping) */
+#define NFSPROC_NULL 0
+#define NFSPROC_GETATTR 1
+#define NFSPROC_SETATTR 2
+#define NFSPROC_LOOKUP 3
+#define NFSPROC_ACCESS 4
+#define NFSPROC_READLINK 5
+#define NFSPROC_READ 6
+#define NFSPROC_WRITE 7
+#define NFSPROC_CREATE 8
+#define NFSPROC_MKDIR 9
+#define NFSPROC_SYMLINK 10
+#define NFSPROC_MKNOD 11
+#define NFSPROC_REMOVE 12
+#define NFSPROC_RMDIR 13
+#define NFSPROC_RENAME 14
+#define NFSPROC_LINK 15
+#define NFSPROC_READDIR 16
+#define NFSPROC_READDIRPLUS 17
+#define NFSPROC_FSSTAT 18
+#define NFSPROC_FSINFO 19
+#define NFSPROC_PATHCONF 20
+#define NFSPROC_COMMIT 21
+#endif /* NFSPROC_NULL */
+
+/*
+ * The lower numbers -> 21 are used by NFSv2 and v3. These define higher
+ * numbers used by NFSv4.
+ * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is
+ * one greater than the last number.
+ */
+#ifndef NFS_V3NPROCS
+#define NFS_V3NPROCS 22
+
+#define NFSPROC_LOOKUPP 22
+#define NFSPROC_SETCLIENTID 23
+#define NFSPROC_SETCLIENTIDCFRM 24
+#define NFSPROC_LOCK 25
+#define NFSPROC_LOCKU 26
+#define NFSPROC_OPEN 27
+#define NFSPROC_CLOSE 28
+#define NFSPROC_OPENCONFIRM 29
+#define NFSPROC_LOCKT 30
+#define NFSPROC_OPENDOWNGRADE 31
+#define NFSPROC_RENEW 32
+#define NFSPROC_PUTROOTFH 33
+#define NFSPROC_RELEASELCKOWN 34
+#define NFSPROC_DELEGRETURN 35
+#define NFSPROC_RETDELEGREMOVE 36
+#define NFSPROC_RETDELEGRENAME1 37
+#define NFSPROC_RETDELEGRENAME2 38
+#define NFSPROC_GETACL 39
+#define NFSPROC_SETACL 40
+
+/*
+ * Must be defined as one higher than the last Proc# above.
+ */
+#define NFSV4_NPROCS 41
+
+/* Additional procedures for NFSv4.1. */
+#define NFSPROC_EXCHANGEID 41
+#define NFSPROC_CREATESESSION 42
+#define NFSPROC_DESTROYSESSION 43
+#define NFSPROC_DESTROYCLIENT 44
+#define NFSPROC_FREESTATEID 45
+#define NFSPROC_LAYOUTGET 46
+#define NFSPROC_GETDEVICEINFO 47
+#define NFSPROC_LAYOUTCOMMIT 48
+#define NFSPROC_LAYOUTRETURN 49
+#define NFSPROC_RECLAIMCOMPL 50
+#define NFSPROC_WRITEDS 51
+#define NFSPROC_READDS 52
+#define NFSPROC_COMMITDS 53
+#define NFSPROC_OPENLAYGET 54
+#define NFSPROC_CREATELAYGET 55
+
+/*
+ * Must be defined as one higher than the last NFSv4.1 Proc# above.
+ */
+#define NFSV41_NPROCS 56
+
+#endif /* NFS_V3NPROCS */
+
+/*
+ * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code.
+ */
+#ifndef NFS_NPROCS
+#define NFS_NPROCS NFSV4_NPROCS
+#endif
+
+/*
+ * NFSPROC_NOOP is a fake op# that can't be the same as any V2/3/4 Procedure
+ * or Operation#. Since the NFS V4 Op #s go higher, use NFSV42_NOPS, which
+ * is one greater than the highest Op#.
+ */
+#define NFSPROC_NOOP NFSV42_NOPS
+
+/* Actual Version 2 procedure numbers */
+#define NFSV2PROC_NULL 0
+#define NFSV2PROC_GETATTR 1
+#define NFSV2PROC_SETATTR 2
+#define NFSV2PROC_NOOP 3
+#define NFSV2PROC_ROOT NFSV2PROC_NOOP /* Obsolete */
+#define NFSV2PROC_LOOKUP 4
+#define NFSV2PROC_READLINK 5
+#define NFSV2PROC_READ 6
+#define NFSV2PROC_WRITECACHE NFSV2PROC_NOOP /* Obsolete */
+#define NFSV2PROC_WRITE 8
+#define NFSV2PROC_CREATE 9
+#define NFSV2PROC_REMOVE 10
+#define NFSV2PROC_RENAME 11
+#define NFSV2PROC_LINK 12
+#define NFSV2PROC_SYMLINK 13
+#define NFSV2PROC_MKDIR 14
+#define NFSV2PROC_RMDIR 15
+#define NFSV2PROC_READDIR 16
+#define NFSV2PROC_STATFS 17
+
+/*
+ * V4 Procedure numbers
+ */
+#define NFSV4PROC_COMPOUND 1
+#define NFSV4PROC_CBNULL 0
+#define NFSV4PROC_CBCOMPOUND 1
+
+/*
+ * Constants used by the Version 3 and 4 protocols for various RPCs
+ */
+#define NFSV3SATTRTIME_DONTCHANGE 0
+#define NFSV3SATTRTIME_TOSERVER 1
+#define NFSV3SATTRTIME_TOCLIENT 2
+
+#define NFSV4SATTRTIME_TOSERVER 0
+#define NFSV4SATTRTIME_TOCLIENT 1
+
+#define NFSV4LOCKT_READ 1
+#define NFSV4LOCKT_WRITE 2
+#define NFSV4LOCKT_READW 3
+#define NFSV4LOCKT_WRITEW 4
+#define NFSV4LOCKT_RELEASE 5
+
+#define NFSV4OPEN_NOCREATE 0
+#define NFSV4OPEN_CREATE 1
+#define NFSV4OPEN_CLAIMNULL 0
+#define NFSV4OPEN_CLAIMPREVIOUS 1
+#define NFSV4OPEN_CLAIMDELEGATECUR 2
+#define NFSV4OPEN_CLAIMDELEGATEPREV 3
+#define NFSV4OPEN_CLAIMFH 4
+#define NFSV4OPEN_CLAIMDELEGATECURFH 5
+#define NFSV4OPEN_CLAIMDELEGATEPREVFH 6
+#define NFSV4OPEN_DELEGATENONE 0
+#define NFSV4OPEN_DELEGATEREAD 1
+#define NFSV4OPEN_DELEGATEWRITE 2
+#define NFSV4OPEN_DELEGATENONEEXT 3
+#define NFSV4OPEN_LIMITSIZE 1
+#define NFSV4OPEN_LIMITBLOCKS 2
+
+/*
+ * Nfs V4 ACE stuff
+ */
+#define NFSV4ACE_ALLOWEDTYPE 0x00000000
+#define NFSV4ACE_DENIEDTYPE 0x00000001
+#define NFSV4ACE_AUDITTYPE 0x00000002
+#define NFSV4ACE_ALARMTYPE 0x00000003
+
+#define NFSV4ACE_SUPALLOWED 0x00000001
+#define NFSV4ACE_SUPDENIED 0x00000002
+#define NFSV4ACE_SUPAUDIT 0x00000004
+#define NFSV4ACE_SUPALARM 0x00000008
+
+#define NFSV4ACE_SUPTYPES (NFSV4ACE_SUPALLOWED | NFSV4ACE_SUPDENIED)
+
+#define NFSV4ACE_FILEINHERIT 0x00000001
+#define NFSV4ACE_DIRECTORYINHERIT 0x00000002
+#define NFSV4ACE_NOPROPAGATEINHERIT 0x00000004
+#define NFSV4ACE_INHERITONLY 0x00000008
+#define NFSV4ACE_SUCCESSFULACCESS 0x00000010
+#define NFSV4ACE_FAILEDACCESS 0x00000020
+#define NFSV4ACE_IDENTIFIERGROUP 0x00000040
+
+#define NFSV4ACE_READDATA 0x00000001
+#define NFSV4ACE_LISTDIRECTORY 0x00000001
+#define NFSV4ACE_WRITEDATA 0x00000002
+#define NFSV4ACE_ADDFILE 0x00000002
+#define NFSV4ACE_APPENDDATA 0x00000004
+#define NFSV4ACE_ADDSUBDIRECTORY 0x00000004
+#define NFSV4ACE_READNAMEDATTR 0x00000008
+#define NFSV4ACE_WRITENAMEDATTR 0x00000010
+#define NFSV4ACE_EXECUTE 0x00000020
+#define NFSV4ACE_SEARCH 0x00000020
+#define NFSV4ACE_DELETECHILD 0x00000040
+#define NFSV4ACE_READATTRIBUTES 0x00000080
+#define NFSV4ACE_WRITEATTRIBUTES 0x00000100
+#define NFSV4ACE_DELETE 0x00010000
+#define NFSV4ACE_READACL 0x00020000
+#define NFSV4ACE_WRITEACL 0x00040000
+#define NFSV4ACE_WRITEOWNER 0x00080000
+#define NFSV4ACE_SYNCHRONIZE 0x00100000
+
+/*
+ * Here are the mappings between mode bits and acl mask bits for
+ * directories and other files.
+ * (Named attributes have not been included, since named attributes are
+ * not yet supported.)
+ * The mailing list seems to indicate that NFSV4ACE_EXECUTE refers to
+ * searching a directory, although I can't find a statement of that in
+ * the RFC.
+ */
+#define NFSV4ACE_ALLFILESMASK (NFSV4ACE_READATTRIBUTES | NFSV4ACE_READACL)
+#define NFSV4ACE_OWNERMASK (NFSV4ACE_WRITEATTRIBUTES | NFSV4ACE_WRITEACL)
+#define NFSV4ACE_DIRREADMASK NFSV4ACE_LISTDIRECTORY
+#define NFSV4ACE_DIREXECUTEMASK NFSV4ACE_EXECUTE
+#define NFSV4ACE_DIRWRITEMASK (NFSV4ACE_ADDFILE | \
+ NFSV4ACE_ADDSUBDIRECTORY | NFSV4ACE_DELETECHILD)
+#define NFSV4ACE_READMASK NFSV4ACE_READDATA
+#define NFSV4ACE_WRITEMASK (NFSV4ACE_WRITEDATA | NFSV4ACE_APPENDDATA)
+#define NFSV4ACE_EXECUTEMASK NFSV4ACE_EXECUTE
+#define NFSV4ACE_ALLFILEBITS (NFSV4ACE_READMASK | NFSV4ACE_WRITEMASK | \
+ NFSV4ACE_EXECUTEMASK | NFSV4ACE_SYNCHRONIZE)
+#define NFSV4ACE_ALLDIRBITS (NFSV4ACE_DIRREADMASK | \
+ NFSV4ACE_DIRWRITEMASK | NFSV4ACE_DIREXECUTEMASK)
+#define NFSV4ACE_AUDITMASK 0x0
+
+/*
+ * These GENERIC masks are not used and are no longer believed to be useful.
+ */
+#define NFSV4ACE_GENERICREAD 0x00120081
+#define NFSV4ACE_GENERICWRITE 0x00160106
+#define NFSV4ACE_GENERICEXECUTE 0x001200a0
+
+#define NFSSTATEID_PUTALLZERO 0
+#define NFSSTATEID_PUTALLONE 1
+#define NFSSTATEID_PUTSTATEID 2
+#define NFSSTATEID_PUTSEQIDZERO 3
+
+/*
+ * Bits for share access and deny.
+ */
+#define NFSV4OPEN_ACCESSREAD 0x00000001
+#define NFSV4OPEN_ACCESSWRITE 0x00000002
+#define NFSV4OPEN_ACCESSBOTH 0x00000003
+#define NFSV4OPEN_WANTDELEGMASK 0x0000ff00
+#define NFSV4OPEN_WANTREADDELEG 0x00000100
+#define NFSV4OPEN_WANTWRITEDELEG 0x00000200
+#define NFSV4OPEN_WANTANYDELEG 0x00000300
+#define NFSV4OPEN_WANTNODELEG 0x00000400
+#define NFSV4OPEN_WANTCANCEL 0x00000500
+#define NFSV4OPEN_WANTSIGNALDELEG 0x00010000
+#define NFSV4OPEN_WANTPUSHDELEG 0x00020000
+
+#define NFSV4OPEN_DENYNONE 0x00000000
+#define NFSV4OPEN_DENYREAD 0x00000001
+#define NFSV4OPEN_DENYWRITE 0x00000002
+#define NFSV4OPEN_DENYBOTH 0x00000003
+
+/*
+ * Delegate_none_ext reply values.
+ */
+#define NFSV4OPEN_NOTWANTED 0
+#define NFSV4OPEN_CONTENTION 1
+#define NFSV4OPEN_RESOURCE 2
+#define NFSV4OPEN_NOTSUPPFTYPE 3
+#define NFSV4OPEN_NOTSUPPWRITEFTYPE 4
+#define NFSV4OPEN_NOTSUPPUPGRADE 5
+#define NFSV4OPEN_NOTSUPPDOWNGRADE 6
+#define NFSV4OPEN_CANCELLED 7
+#define NFSV4OPEN_ISDIR 8
+
+/*
+ * Open result flags
+ * (The first four are in the spec. The rest are used internally.)
+ */
+#define NFSV4OPEN_RESULTCONFIRM 0x00000002
+#define NFSV4OPEN_LOCKTYPEPOSIX 0x00000004
+#define NFSV4OPEN_PRESERVEUNLINKED 0x00000008
+#define NFSV4OPEN_MAYNOTIFYLOCK 0x00000020
+#define NFSV4OPEN_RFLAGS \
+ (NFSV4OPEN_RESULTCONFIRM | NFSV4OPEN_LOCKTYPEPOSIX | \
+ NFSV4OPEN_PRESERVEUNLINKED | NFSV4OPEN_MAYNOTIFYLOCK)
+#define NFSV4OPEN_RECALL 0x00010000
+#define NFSV4OPEN_READDELEGATE 0x00020000
+#define NFSV4OPEN_WRITEDELEGATE 0x00040000
+#define NFSV4OPEN_WDRESOURCE 0x00080000
+#define NFSV4OPEN_WDCONTENTION 0x00100000
+#define NFSV4OPEN_WDNOTWANTED 0x00200000
+#define NFSV4OPEN_WDSUPPFTYPE 0x00400000
+
+/*
+ * NFS V4 File Handle types
+ */
+#define NFSV4FHTYPE_PERSISTENT 0x0
+#define NFSV4FHTYPE_NOEXPIREWITHOPEN 0x1
+#define NFSV4FHTYPE_VOLATILEANY 0x2
+#define NFSV4FHTYPE_VOLATILEMIGRATE 0x4
+#define NFSV4FHTYPE_VOLATILERENAME 0x8
+
+/*
+ * Maximum size of V4 opaque strings.
+ */
+#define NFSV4_OPAQUELIMIT 1024
+
+/*
+ * These are the same for V3 and V4.
+ */
+#define NFSACCESS_READ 0x01
+#define NFSACCESS_LOOKUP 0x02
+#define NFSACCESS_MODIFY 0x04
+#define NFSACCESS_EXTEND 0x08
+#define NFSACCESS_DELETE 0x10
+#define NFSACCESS_EXECUTE 0x20
+
+#define NFSWRITE_UNSTABLE 0
+#define NFSWRITE_DATASYNC 1
+#define NFSWRITE_FILESYNC 2
+
+#define NFSCREATE_UNCHECKED 0
+#define NFSCREATE_GUARDED 1
+#define NFSCREATE_EXCLUSIVE 2
+#define NFSCREATE_EXCLUSIVE41 3
+
+#define NFSV3FSINFO_LINK 0x01
+#define NFSV3FSINFO_SYMLINK 0x02
+#define NFSV3FSINFO_HOMOGENEOUS 0x08
+#define NFSV3FSINFO_CANSETTIME 0x10
+
+/* Flags for Exchange ID */
+#define NFSV4EXCH_SUPPMOVEDREFER 0x00000001
+#define NFSV4EXCH_SUPPMOVEDMIGR 0x00000002
+#define NFSV4EXCH_BINDPRINCSTATEID 0x00000100
+#define NFSV4EXCH_USENONPNFS 0x00010000
+#define NFSV4EXCH_USEPNFSMDS 0x00020000
+#define NFSV4EXCH_USEPNFSDS 0x00040000
+#define NFSV4EXCH_MASKPNFS 0x00070000
+#define NFSV4EXCH_UPDCONFIRMEDRECA 0x40000000
+#define NFSV4EXCH_CONFIRMEDR 0x80000000
+
+/* State Protects */
+#define NFSV4EXCH_SP4NONE 0
+#define NFSV4EXCH_SP4MACHCRED 1
+#define NFSV4EXCH_SP4SSV 2
+
+/* Flags for Create Session */
+#define NFSV4CRSESS_PERSIST 0x00000001
+#define NFSV4CRSESS_CONNBACKCHAN 0x00000002
+#define NFSV4CRSESS_CONNRDMA 0x00000004
+
+/* Flags for Sequence */
+#define NFSV4SEQ_CBPATHDOWN 0x00000001
+#define NFSV4SEQ_CBGSSCONTEXPIRING 0x00000002
+#define NFSV4SEQ_CBGSSCONTEXPIRED 0x00000004
+#define NFSV4SEQ_EXPIREDALLSTATEREVOKED 0x00000008
+#define NFSV4SEQ_EXPIREDSOMESTATEREVOKED 0x00000010
+#define NFSV4SEQ_ADMINSTATEREVOKED 0x00000020
+#define NFSV4SEQ_RECALLABLESTATEREVOKED 0x00000040
+#define NFSV4SEQ_LEASEMOVED 0x00000080
+#define NFSV4SEQ_RESTARTRECLAIMNEEDED 0x00000100
+#define NFSV4SEQ_CBPATHDOWNSESSION 0x00000200
+#define NFSV4SEQ_BACKCHANNELFAULT 0x00000400
+#define NFSV4SEQ_DEVIDCHANGED 0x00000800
+#define NFSV4SEQ_DEVIDDELETED 0x00001000
+
+/* Flags for Layout. */
+#define NFSLAYOUTRETURN_FILE 1
+#define NFSLAYOUTRETURN_FSID 2
+#define NFSLAYOUTRETURN_ALL 3
+
+#define NFSLAYOUT_NFSV4_1_FILES 0x1
+#define NFSLAYOUT_OSD2_OBJECTS 0x2
+#define NFSLAYOUT_BLOCK_VOLUME 0x3
+#define NFSLAYOUT_FLEXFILE 0x4
+
+#define NFSLAYOUTIOMODE_READ 1
+#define NFSLAYOUTIOMODE_RW 2
+#define NFSLAYOUTIOMODE_ANY 3
+
+/* Flags for Get Device Info. */
+#define NFSDEVICEIDNOTIFY_CHANGEBIT 0x1
+#define NFSDEVICEIDNOTIFY_DELETEBIT 0x2
+
+/* Flags for File Layout. */
+#define NFSFLAYUTIL_DENSE 0x1
+#define NFSFLAYUTIL_COMMIT_THRU_MDS 0x2
+#define NFSFLAYUTIL_STRIPE_MASK 0xffffffc0
+
+/* Flags for Flex File Layout. */
+#define NFSFLEXFLAG_NO_LAYOUTCOMMIT 0x00000001
+#define NFSFLEXFLAG_NOIO_MDS 0x00000002
+#define NFSFLEXFLAG_NO_READIO 0x00000004
+#define NFSFLEXFLAG_WRITE_ONEMIRROR 0x00000008
+
+/* Enum values for Bind Connection to Session. */
+#define NFSCDFC4_FORE 0x1
+#define NFSCDFC4_BACK 0x2
+#define NFSCDFC4_FORE_OR_BOTH 0x3
+#define NFSCDFC4_BACK_OR_BOTH 0x7
+#define NFSCDFS4_FORE 0x1
+#define NFSCDFS4_BACK 0x2
+#define NFSCDFS4_BOTH 0x3
+
+#if defined(_KERNEL) || defined(KERNEL)
+/* Conversion macros */
+#define vtonfsv2_mode(t,m) \
+ txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
+ MAKEIMODE((t), (m)))
+#define vtonfsv34_mode(m) txdr_unsigned((m) & 07777)
+#define nfstov_mode(a) (fxdr_unsigned(u_int16_t, (a))&07777)
+#define vtonfsv2_type(a) (((u_int32_t)(a)) >= 9 ? txdr_unsigned(NFNON) : \
+ txdr_unsigned(newnfsv2_type[((u_int32_t)(a))]))
+#define vtonfsv34_type(a) (((u_int32_t)(a)) >= 9 ? txdr_unsigned(NFNON) : \
+ txdr_unsigned(nfsv34_type[((u_int32_t)(a))]))
+#define nfsv2tov_type(a) newnv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
+#define nfsv34tov_type(a) nv34tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
+#define vtonfs_dtype(a) (((u_int32_t)(a)) >= 9 ? IFTODT(VTTOIF(VNON)) : \
+ IFTODT(VTTOIF(a)))
+
+/* File types */
+typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,
+ NFSOCK=6, NFFIFO=7, NFATTRDIR=8, NFNAMEDATTR=9 } nfstype;
+
+/* Structs for common parts of the rpc's */
+
+struct nfsv2_time {
+ u_int32_t nfsv2_sec;
+ u_int32_t nfsv2_usec;
+};
+typedef struct nfsv2_time nfstime2;
+
+struct nfsv3_time {
+ u_int32_t nfsv3_sec;
+ u_int32_t nfsv3_nsec;
+};
+typedef struct nfsv3_time nfstime3;
+
+struct nfsv4_time {
+ u_int32_t nfsv4_highsec;
+ u_int32_t nfsv4_sec;
+ u_int32_t nfsv4_nsec;
+};
+typedef struct nfsv4_time nfstime4;
+
+/*
+ * Quads are defined as arrays of 2 longs to ensure dense packing for the
+ * protocol and to facilitate xdr conversion.
+ */
+struct nfs_uquad {
+ u_int32_t nfsuquad[2];
+};
+typedef struct nfs_uquad nfsuint64;
+
+/*
+ * Used to convert between two u_longs and a u_quad_t.
+ */
+union nfs_quadconvert {
+ u_int32_t lval[2];
+ u_quad_t qval;
+};
+typedef union nfs_quadconvert nfsquad_t;
+
+/*
+ * NFS Version 3 special file number.
+ */
+struct nfsv3_spec {
+ u_int32_t specdata1;
+ u_int32_t specdata2;
+};
+typedef struct nfsv3_spec nfsv3spec;
+
+/*
+ * File attributes and setable attributes. These structures cover both
+ * NFS version 2 and the version 3 protocol. Note that the union is only
+ * used so that one pointer can refer to both variants. These structures
+ * go out on the wire and must be densely packed, so no quad data types
+ * are used. (all fields are longs or u_longs or structures of same)
+ * NB: You can't do sizeof(struct nfs_fattr), you must use the
+ * NFSX_FATTR(v3) macro.
+ */
+struct nfs_fattr {
+ u_int32_t fa_type;
+ u_int32_t fa_mode;
+ u_int32_t fa_nlink;
+ u_int32_t fa_uid;
+ u_int32_t fa_gid;
+ union {
+ struct {
+ u_int32_t nfsv2fa_size;
+ u_int32_t nfsv2fa_blocksize;
+ u_int32_t nfsv2fa_rdev;
+ u_int32_t nfsv2fa_blocks;
+ u_int32_t nfsv2fa_fsid;
+ u_int32_t nfsv2fa_fileid;
+ nfstime2 nfsv2fa_atime;
+ nfstime2 nfsv2fa_mtime;
+ nfstime2 nfsv2fa_ctime;
+ } fa_nfsv2;
+ struct {
+ nfsuint64 nfsv3fa_size;
+ nfsuint64 nfsv3fa_used;
+ nfsv3spec nfsv3fa_rdev;
+ nfsuint64 nfsv3fa_fsid;
+ nfsuint64 nfsv3fa_fileid;
+ nfstime3 nfsv3fa_atime;
+ nfstime3 nfsv3fa_mtime;
+ nfstime3 nfsv3fa_ctime;
+ } fa_nfsv3;
+ } fa_un;
+};
+
+/* and some ugly defines for accessing union components */
+#define fa2_size fa_un.fa_nfsv2.nfsv2fa_size
+#define fa2_blocksize fa_un.fa_nfsv2.nfsv2fa_blocksize
+#define fa2_rdev fa_un.fa_nfsv2.nfsv2fa_rdev
+#define fa2_blocks fa_un.fa_nfsv2.nfsv2fa_blocks
+#define fa2_fsid fa_un.fa_nfsv2.nfsv2fa_fsid
+#define fa2_fileid fa_un.fa_nfsv2.nfsv2fa_fileid
+#define fa2_atime fa_un.fa_nfsv2.nfsv2fa_atime
+#define fa2_mtime fa_un.fa_nfsv2.nfsv2fa_mtime
+#define fa2_ctime fa_un.fa_nfsv2.nfsv2fa_ctime
+#define fa3_size fa_un.fa_nfsv3.nfsv3fa_size
+#define fa3_used fa_un.fa_nfsv3.nfsv3fa_used
+#define fa3_rdev fa_un.fa_nfsv3.nfsv3fa_rdev
+#define fa3_fsid fa_un.fa_nfsv3.nfsv3fa_fsid
+#define fa3_fileid fa_un.fa_nfsv3.nfsv3fa_fileid
+#define fa3_atime fa_un.fa_nfsv3.nfsv3fa_atime
+#define fa3_mtime fa_un.fa_nfsv3.nfsv3fa_mtime
+#define fa3_ctime fa_un.fa_nfsv3.nfsv3fa_ctime
+
+#define NFS_LINK_MAX UINT32_MAX
+
+struct nfsv2_sattr {
+ u_int32_t sa_mode;
+ u_int32_t sa_uid;
+ u_int32_t sa_gid;
+ u_int32_t sa_size;
+ nfstime2 sa_atime;
+ nfstime2 sa_mtime;
+};
+
+/*
+ * NFS Version 3 sattr structure for the new node creation case.
+ */
+struct nfsv3_sattr {
+ u_int32_t sa_modetrue;
+ u_int32_t sa_mode;
+ u_int32_t sa_uidfalse;
+ u_int32_t sa_gidfalse;
+ u_int32_t sa_sizefalse;
+ u_int32_t sa_atimetype;
+ nfstime3 sa_atime;
+ u_int32_t sa_mtimetype;
+ nfstime3 sa_mtime;
+};
+#endif /* _KERNEL */
+
+/*
+ * The attribute bits used for V4.
+ * NFSATTRBIT_xxx defines the attribute# (and its bit position)
+ * NFSATTRBM_xxx is a 32bit mask with the correct bit set within the
+ * appropriate 32bit word.
+ * NFSATTRBIT_MAX is one greater than the largest NFSATTRBIT_xxx
+ */
+#define NFSATTRBIT_SUPPORTEDATTRS 0
+#define NFSATTRBIT_TYPE 1
+#define NFSATTRBIT_FHEXPIRETYPE 2
+#define NFSATTRBIT_CHANGE 3
+#define NFSATTRBIT_SIZE 4
+#define NFSATTRBIT_LINKSUPPORT 5
+#define NFSATTRBIT_SYMLINKSUPPORT 6
+#define NFSATTRBIT_NAMEDATTR 7
+#define NFSATTRBIT_FSID 8
+#define NFSATTRBIT_UNIQUEHANDLES 9
+#define NFSATTRBIT_LEASETIME 10
+#define NFSATTRBIT_RDATTRERROR 11
+#define NFSATTRBIT_ACL 12
+#define NFSATTRBIT_ACLSUPPORT 13
+#define NFSATTRBIT_ARCHIVE 14
+#define NFSATTRBIT_CANSETTIME 15
+#define NFSATTRBIT_CASEINSENSITIVE 16
+#define NFSATTRBIT_CASEPRESERVING 17
+#define NFSATTRBIT_CHOWNRESTRICTED 18
+#define NFSATTRBIT_FILEHANDLE 19
+#define NFSATTRBIT_FILEID 20
+#define NFSATTRBIT_FILESAVAIL 21
+#define NFSATTRBIT_FILESFREE 22
+#define NFSATTRBIT_FILESTOTAL 23
+#define NFSATTRBIT_FSLOCATIONS 24
+#define NFSATTRBIT_HIDDEN 25
+#define NFSATTRBIT_HOMOGENEOUS 26
+#define NFSATTRBIT_MAXFILESIZE 27
+#define NFSATTRBIT_MAXLINK 28
+#define NFSATTRBIT_MAXNAME 29
+#define NFSATTRBIT_MAXREAD 30
+#define NFSATTRBIT_MAXWRITE 31
+#define NFSATTRBIT_MIMETYPE 32
+#define NFSATTRBIT_MODE 33
+#define NFSATTRBIT_NOTRUNC 34
+#define NFSATTRBIT_NUMLINKS 35
+#define NFSATTRBIT_OWNER 36
+#define NFSATTRBIT_OWNERGROUP 37
+#define NFSATTRBIT_QUOTAHARD 38
+#define NFSATTRBIT_QUOTASOFT 39
+#define NFSATTRBIT_QUOTAUSED 40
+#define NFSATTRBIT_RAWDEV 41
+#define NFSATTRBIT_SPACEAVAIL 42
+#define NFSATTRBIT_SPACEFREE 43
+#define NFSATTRBIT_SPACETOTAL 44
+#define NFSATTRBIT_SPACEUSED 45
+#define NFSATTRBIT_SYSTEM 46
+#define NFSATTRBIT_TIMEACCESS 47
+#define NFSATTRBIT_TIMEACCESSSET 48
+#define NFSATTRBIT_TIMEBACKUP 49
+#define NFSATTRBIT_TIMECREATE 50
+#define NFSATTRBIT_TIMEDELTA 51
+#define NFSATTRBIT_TIMEMETADATA 52
+#define NFSATTRBIT_TIMEMODIFY 53
+#define NFSATTRBIT_TIMEMODIFYSET 54
+#define NFSATTRBIT_MOUNTEDONFILEID 55
+#define NFSATTRBIT_DIRNOTIFDELAY 56
+#define NFSATTRBIT_DIRENTNOTIFDELAY 57
+#define NFSATTRBIT_DACL 58
+#define NFSATTRBIT_SACL 59
+#define NFSATTRBIT_CHANGEPOLICY 60
+#define NFSATTRBIT_FSSTATUS 61
+#define NFSATTRBIT_FSLAYOUTTYPE 62
+#define NFSATTRBIT_LAYOUTHINT 63
+#define NFSATTRBIT_LAYOUTTYPE 64
+#define NFSATTRBIT_LAYOUTBLKSIZE 65
+#define NFSATTRBIT_LAYOUTALIGNMENT 66
+#define NFSATTRBIT_FSLOCATIONSINFO 67
+#define NFSATTRBIT_MDSTHRESHOLD 68
+#define NFSATTRBIT_RETENTIONGET 69
+#define NFSATTRBIT_RETENTIONSET 70
+#define NFSATTRBIT_RETENTEVTGET 71
+#define NFSATTRBIT_RETENTEVTSET 72
+#define NFSATTRBIT_RETENTIONHOLD 73
+#define NFSATTRBIT_MODESETMASKED 74
+#define NFSATTRBIT_SUPPATTREXCLCREAT 75
+#define NFSATTRBIT_FSCHARSETCAP 76
+
+#define NFSATTRBM_SUPPORTEDATTRS 0x00000001
+#define NFSATTRBM_TYPE 0x00000002
+#define NFSATTRBM_FHEXPIRETYPE 0x00000004
+#define NFSATTRBM_CHANGE 0x00000008
+#define NFSATTRBM_SIZE 0x00000010
+#define NFSATTRBM_LINKSUPPORT 0x00000020
+#define NFSATTRBM_SYMLINKSUPPORT 0x00000040
+#define NFSATTRBM_NAMEDATTR 0x00000080
+#define NFSATTRBM_FSID 0x00000100
+#define NFSATTRBM_UNIQUEHANDLES 0x00000200
+#define NFSATTRBM_LEASETIME 0x00000400
+#define NFSATTRBM_RDATTRERROR 0x00000800
+#define NFSATTRBM_ACL 0x00001000
+#define NFSATTRBM_ACLSUPPORT 0x00002000
+#define NFSATTRBM_ARCHIVE 0x00004000
+#define NFSATTRBM_CANSETTIME 0x00008000
+#define NFSATTRBM_CASEINSENSITIVE 0x00010000
+#define NFSATTRBM_CASEPRESERVING 0x00020000
+#define NFSATTRBM_CHOWNRESTRICTED 0x00040000
+#define NFSATTRBM_FILEHANDLE 0x00080000
+#define NFSATTRBM_FILEID 0x00100000
+#define NFSATTRBM_FILESAVAIL 0x00200000
+#define NFSATTRBM_FILESFREE 0x00400000
+#define NFSATTRBM_FILESTOTAL 0x00800000
+#define NFSATTRBM_FSLOCATIONS 0x01000000
+#define NFSATTRBM_HIDDEN 0x02000000
+#define NFSATTRBM_HOMOGENEOUS 0x04000000
+#define NFSATTRBM_MAXFILESIZE 0x08000000
+#define NFSATTRBM_MAXLINK 0x10000000
+#define NFSATTRBM_MAXNAME 0x20000000
+#define NFSATTRBM_MAXREAD 0x40000000
+#define NFSATTRBM_MAXWRITE 0x80000000
+#define NFSATTRBM_MIMETYPE 0x00000001
+#define NFSATTRBM_MODE 0x00000002
+#define NFSATTRBM_NOTRUNC 0x00000004
+#define NFSATTRBM_NUMLINKS 0x00000008
+#define NFSATTRBM_OWNER 0x00000010
+#define NFSATTRBM_OWNERGROUP 0x00000020
+#define NFSATTRBM_QUOTAHARD 0x00000040
+#define NFSATTRBM_QUOTASOFT 0x00000080
+#define NFSATTRBM_QUOTAUSED 0x00000100
+#define NFSATTRBM_RAWDEV 0x00000200
+#define NFSATTRBM_SPACEAVAIL 0x00000400
+#define NFSATTRBM_SPACEFREE 0x00000800
+#define NFSATTRBM_SPACETOTAL 0x00001000
+#define NFSATTRBM_SPACEUSED 0x00002000
+#define NFSATTRBM_SYSTEM 0x00004000
+#define NFSATTRBM_TIMEACCESS 0x00008000
+#define NFSATTRBM_TIMEACCESSSET 0x00010000
+#define NFSATTRBM_TIMEBACKUP 0x00020000
+#define NFSATTRBM_TIMECREATE 0x00040000
+#define NFSATTRBM_TIMEDELTA 0x00080000
+#define NFSATTRBM_TIMEMETADATA 0x00100000
+#define NFSATTRBM_TIMEMODIFY 0x00200000
+#define NFSATTRBM_TIMEMODIFYSET 0x00400000
+#define NFSATTRBM_MOUNTEDONFILEID 0x00800000
+#define NFSATTRBM_DIRNOTIFDELAY 0x01000000
+#define NFSATTRBM_DIRENTNOTIFDELAY 0x02000000
+#define NFSATTRBM_DACL 0x04000000
+#define NFSATTRBM_SACL 0x08000000
+#define NFSATTRBM_CHANGEPOLICY 0x10000000
+#define NFSATTRBM_FSSTATUS 0x20000000
+#define NFSATTRBM_FSLAYOUTTYPE 0x40000000
+#define NFSATTRBM_LAYOUTHINT 0x80000000
+#define NFSATTRBM_LAYOUTTYPE 0x00000001
+#define NFSATTRBM_LAYOUTBLKSIZE 0x00000002
+#define NFSATTRBM_LAYOUTALIGNMENT 0x00000004
+#define NFSATTRBM_FSLOCATIONSINFO 0x00000008
+#define NFSATTRBM_MDSTHRESHOLD 0x00000010
+#define NFSATTRBM_RETENTIONGET 0x00000020
+#define NFSATTRBM_RETENTIONSET 0x00000040
+#define NFSATTRBM_RETENTEVTGET 0x00000080
+#define NFSATTRBM_RETENTEVTSET 0x00000100
+#define NFSATTRBM_RETENTIONHOLD 0x00000200
+#define NFSATTRBM_MODESETMASKED 0x00000400
+#define NFSATTRBM_SUPPATTREXCLCREAT 0x00000800
+#define NFSATTRBM_FSCHARSETCAP 0x00001000
+
+#define NFSATTRBIT_MAX 77
+
+/*
+ * Sets of attributes that are supported, by words in the bitmap.
+ */
+/*
+ * NFSATTRBIT_SUPPORTED - SUPP0 - bits 0<->31
+ * SUPP1 - bits 32<->63
+ * SUPP2 - bits 64<->95
+ */
+#define NFSATTRBIT_SUPP0 \
+ (NFSATTRBM_SUPPORTEDATTRS | \
+ NFSATTRBM_TYPE | \
+ NFSATTRBM_FHEXPIRETYPE | \
+ NFSATTRBM_CHANGE | \
+ NFSATTRBM_SIZE | \
+ NFSATTRBM_LINKSUPPORT | \
+ NFSATTRBM_SYMLINKSUPPORT | \
+ NFSATTRBM_NAMEDATTR | \
+ NFSATTRBM_FSID | \
+ NFSATTRBM_UNIQUEHANDLES | \
+ NFSATTRBM_LEASETIME | \
+ NFSATTRBM_RDATTRERROR | \
+ NFSATTRBM_ACL | \
+ NFSATTRBM_ACLSUPPORT | \
+ NFSATTRBM_CANSETTIME | \
+ NFSATTRBM_CASEINSENSITIVE | \
+ NFSATTRBM_CASEPRESERVING | \
+ NFSATTRBM_CHOWNRESTRICTED | \
+ NFSATTRBM_FILEHANDLE | \
+ NFSATTRBM_FILEID | \
+ NFSATTRBM_FILESAVAIL | \
+ NFSATTRBM_FILESFREE | \
+ NFSATTRBM_FILESTOTAL | \
+ NFSATTRBM_FSLOCATIONS | \
+ NFSATTRBM_HOMOGENEOUS | \
+ NFSATTRBM_MAXFILESIZE | \
+ NFSATTRBM_MAXLINK | \
+ NFSATTRBM_MAXNAME | \
+ NFSATTRBM_MAXREAD | \
+ NFSATTRBM_MAXWRITE)
+
+/*
+ * NFSATTRBIT_S1 - subset of SUPP1 - OR of the following bits:
+ */
+#define NFSATTRBIT_S1 \
+ (NFSATTRBM_MODE | \
+ NFSATTRBM_NOTRUNC | \
+ NFSATTRBM_NUMLINKS | \
+ NFSATTRBM_OWNER | \
+ NFSATTRBM_OWNERGROUP | \
+ NFSATTRBM_RAWDEV | \
+ NFSATTRBM_SPACEAVAIL | \
+ NFSATTRBM_SPACEFREE | \
+ NFSATTRBM_SPACETOTAL | \
+ NFSATTRBM_SPACEUSED | \
+ NFSATTRBM_TIMEACCESS | \
+ NFSATTRBM_TIMEDELTA | \
+ NFSATTRBM_TIMEMETADATA | \
+ NFSATTRBM_TIMEMODIFY | \
+ NFSATTRBM_MOUNTEDONFILEID | \
+ NFSATTRBM_QUOTAHARD | \
+ NFSATTRBM_QUOTASOFT | \
+ NFSATTRBM_QUOTAUSED | \
+ NFSATTRBM_FSLAYOUTTYPE)
+
+
+#ifdef QUOTA
+/*
+ * If QUOTA OR in NFSATTRBIT_QUOTAHARD, NFSATTRBIT_QUOTASOFT and
+ * NFSATTRBIT_QUOTAUSED.
+ */
+#define NFSATTRBIT_SUPP1 (NFSATTRBIT_S1 | \
+ NFSATTRBM_QUOTAHARD | \
+ NFSATTRBM_QUOTASOFT | \
+ NFSATTRBM_QUOTAUSED)
+#else
+#define NFSATTRBIT_SUPP1 NFSATTRBIT_S1
+#endif
+
+#define NFSATTRBIT_SUPP2 \
+ (NFSATTRBM_LAYOUTTYPE | \
+ NFSATTRBM_LAYOUTBLKSIZE | \
+ NFSATTRBM_LAYOUTALIGNMENT | \
+ NFSATTRBM_SUPPATTREXCLCREAT)
+
+/*
+ * These are the set only attributes.
+ */
+#define NFSATTRBIT_SUPPSETONLY1 (NFSATTRBM_TIMEACCESSSET | \
+ NFSATTRBM_TIMEMODIFYSET)
+#define NFSATTRBIT_SUPPSETONLY2 (NFSATTRBM_MODESETMASKED)
+
+/*
+ * NFSATTRBIT_SETABLE - SETABLE0 - bits 0<->31
+ * SETABLE1 - bits 32<->63
+ * SETABLE2 - bits 64<->95
+ */
+#define NFSATTRBIT_SETABLE0 \
+ (NFSATTRBM_SIZE | \
+ NFSATTRBM_ACL)
+#define NFSATTRBIT_SETABLE1 \
+ (NFSATTRBM_MODE | \
+ NFSATTRBM_OWNER | \
+ NFSATTRBM_OWNERGROUP | \
+ NFSATTRBM_TIMEACCESSSET | \
+ NFSATTRBM_TIMEMODIFYSET)
+#define NFSATTRBIT_SETABLE2 \
+ (NFSATTRBM_MODESETMASKED)
+
+/*
+ * NFSATTRBIT_NFSV41 - Attributes only supported by NFSv4.1.
+ */
+#define NFSATTRBIT_NFSV41_1 \
+ (NFSATTRBM_FSLAYOUTTYPE)
+#define NFSATTRBIT_NFSV41_2 \
+ (NFSATTRBM_LAYOUTTYPE | \
+ NFSATTRBM_LAYOUTBLKSIZE | \
+ NFSATTRBM_LAYOUTALIGNMENT | \
+ NFSATTRBM_MODESETMASKED | \
+ NFSATTRBM_SUPPATTREXCLCREAT)
+
+/*
+ * Set of attributes that the getattr vnode op needs.
+ * OR of the following bits.
+ * NFSATTRBIT_GETATTR0 - bits 0<->31
+ */
+#define NFSATTRBIT_GETATTR0 \
+ (NFSATTRBM_SUPPORTEDATTRS | \
+ NFSATTRBM_TYPE | \
+ NFSATTRBM_CHANGE | \
+ NFSATTRBM_SIZE | \
+ NFSATTRBM_FSID | \
+ NFSATTRBM_FILEID | \
+ NFSATTRBM_MAXREAD)
+
+/*
+ * NFSATTRBIT_GETATTR1 - bits 32<->63
+ */
+#define NFSATTRBIT_GETATTR1 \
+ (NFSATTRBM_MODE | \
+ NFSATTRBM_NUMLINKS | \
+ NFSATTRBM_OWNER | \
+ NFSATTRBM_OWNERGROUP | \
+ NFSATTRBM_RAWDEV | \
+ NFSATTRBM_SPACEUSED | \
+ NFSATTRBM_TIMEACCESS | \
+ NFSATTRBM_TIMEMETADATA | \
+ NFSATTRBM_TIMEMODIFY)
+
+/*
+ * NFSATTRBIT_GETATTR2 - bits 64<->95
+ */
+#define NFSATTRBIT_GETATTR2 0
+
+/*
+ * Subset of the above that the Write RPC gets.
+ * OR of the following bits.
+ * NFSATTRBIT_WRITEGETATTR0 - bits 0<->31
+ */
+#define NFSATTRBIT_WRITEGETATTR0 \
+ (NFSATTRBM_SUPPORTEDATTRS | \
+ NFSATTRBM_TYPE | \
+ NFSATTRBM_CHANGE | \
+ NFSATTRBM_SIZE | \
+ NFSATTRBM_FSID | \
+ NFSATTRBM_FILEID | \
+ NFSATTRBM_MAXREAD)
+
+/*
+ * NFSATTRBIT_WRITEGETATTR1 - bits 32<->63
+ */
+#define NFSATTRBIT_WRITEGETATTR1 \
+ (NFSATTRBM_MODE | \
+ NFSATTRBM_NUMLINKS | \
+ NFSATTRBM_RAWDEV | \
+ NFSATTRBM_SPACEUSED | \
+ NFSATTRBM_TIMEACCESS | \
+ NFSATTRBM_TIMEMETADATA | \
+ NFSATTRBM_TIMEMODIFY)
+
+/*
+ * NFSATTRBIT_WRITEGETATTR2 - bits 64<->95
+ */
+#define NFSATTRBIT_WRITEGETATTR2 0
+
+/*
+ * Set of attributes that the wccattr operation op needs.
+ * OR of the following bits.
+ * NFSATTRBIT_WCCATTR0 - bits 0<->31
+ */
+#define NFSATTRBIT_WCCATTR0 0
+
+/*
+ * NFSATTRBIT_WCCATTR1 - bits 32<->63
+ */
+#define NFSATTRBIT_WCCATTR1 \
+ (NFSATTRBM_TIMEMODIFY)
+
+/*
+ * NFSATTRBIT_WCCATTR2 - bits 64<->95
+ */
+#define NFSATTRBIT_WCCATTR2 0
+
+/*
+ * NFSATTRBIT_CBGETATTR0 - bits 0<->31
+ */
+#define NFSATTRBIT_CBGETATTR0 (NFSATTRBM_CHANGE | NFSATTRBM_SIZE)
+
+/*
+ * NFSATTRBIT_CBGETATTR1 - bits 32<->63
+ */
+#define NFSATTRBIT_CBGETATTR1 0x0
+
+/*
+ * NFSATTRBIT_CBGETATTR2 - bits 64<->95
+ */
+#define NFSATTRBIT_CBGETATTR2 0x0
+
+/*
+ * Sets of attributes that require a VFS_STATFS() call to get the
+ * values of.
+ * NFSATTRBIT_STATFS0 - bits 0<->31
+ */
+#define NFSATTRBIT_STATFS0 \
+ (NFSATTRBM_LINKSUPPORT | \
+ NFSATTRBM_SYMLINKSUPPORT | \
+ NFSATTRBM_CANSETTIME | \
+ NFSATTRBM_FILESAVAIL | \
+ NFSATTRBM_FILESFREE | \
+ NFSATTRBM_FILESTOTAL | \
+ NFSATTRBM_HOMOGENEOUS | \
+ NFSATTRBM_MAXFILESIZE | \
+ NFSATTRBM_MAXNAME | \
+ NFSATTRBM_MAXREAD | \
+ NFSATTRBM_MAXWRITE)
+
+/*
+ * NFSATTRBIT_STATFS1 - bits 32<->63
+ */
+#define NFSATTRBIT_STATFS1 \
+ (NFSATTRBM_QUOTAHARD | \
+ NFSATTRBM_QUOTASOFT | \
+ NFSATTRBM_QUOTAUSED | \
+ NFSATTRBM_SPACEAVAIL | \
+ NFSATTRBM_SPACEFREE | \
+ NFSATTRBM_SPACETOTAL | \
+ NFSATTRBM_SPACEUSED | \
+ NFSATTRBM_TIMEDELTA)
+
+/*
+ * NFSATTRBIT_STATFS2 - bits 64<->95
+ */
+#define NFSATTRBIT_STATFS2 0
+
+/*
+ * These are the bits that are needed by the nfs_statfs() call.
+ * (The regular getattr bits are or'd in so the vnode gets the correct
+ * type, etc.)
+ * NFSGETATTRBIT_STATFS0 - bits 0<->31
+ */
+#define NFSGETATTRBIT_STATFS0 (NFSATTRBIT_GETATTR0 | \
+ NFSATTRBM_LINKSUPPORT | \
+ NFSATTRBM_SYMLINKSUPPORT | \
+ NFSATTRBM_CANSETTIME | \
+ NFSATTRBM_FILESFREE | \
+ NFSATTRBM_FILESTOTAL | \
+ NFSATTRBM_HOMOGENEOUS | \
+ NFSATTRBM_MAXFILESIZE | \
+ NFSATTRBM_MAXNAME | \
+ NFSATTRBM_MAXREAD | \
+ NFSATTRBM_MAXWRITE)
+
+/*
+ * NFSGETATTRBIT_STATFS1 - bits 32<->63
+ */
+#define NFSGETATTRBIT_STATFS1 (NFSATTRBIT_GETATTR1 | \
+ NFSATTRBM_SPACEAVAIL | \
+ NFSATTRBM_SPACEFREE | \
+ NFSATTRBM_SPACETOTAL | \
+ NFSATTRBM_TIMEDELTA)
+
+/*
+ * NFSGETATTRBIT_STATFS2 - bits 64<->95
+ */
+#define NFSGETATTRBIT_STATFS2 0
+
+/*
+ * Set of attributes for the equivalent of an nfsv3 pathconf rpc.
+ * NFSGETATTRBIT_PATHCONF0 - bits 0<->31
+ */
+#define NFSGETATTRBIT_PATHCONF0 (NFSATTRBIT_GETATTR0 | \
+ NFSATTRBM_CASEINSENSITIVE | \
+ NFSATTRBM_CASEPRESERVING | \
+ NFSATTRBM_CHOWNRESTRICTED | \
+ NFSATTRBM_MAXLINK | \
+ NFSATTRBM_MAXNAME)
+
+/*
+ * NFSGETATTRBIT_PATHCONF1 - bits 32<->63
+ */
+#define NFSGETATTRBIT_PATHCONF1 (NFSATTRBIT_GETATTR1 | \
+ NFSATTRBM_NOTRUNC)
+
+/*
+ * NFSGETATTRBIT_PATHCONF2 - bits 64<->95
+ */
+#define NFSGETATTRBIT_PATHCONF2 0
+
+/*
+ * Sets of attributes required by readdir and readdirplus.
+ * NFSATTRBIT_READDIRPLUS0 (NFSATTRBIT_GETATTR0 | NFSATTRBIT_FILEHANDLE |
+ * NFSATTRBIT_RDATTRERROR)
+ */
+#define NFSATTRBIT_READDIRPLUS0 (NFSATTRBIT_GETATTR0 | NFSATTRBM_FILEHANDLE | \
+ NFSATTRBM_RDATTRERROR)
+#define NFSATTRBIT_READDIRPLUS1 NFSATTRBIT_GETATTR1
+#define NFSATTRBIT_READDIRPLUS2 0
+
+/*
+ * Set of attributes supported by Referral vnodes.
+ */
+#define NFSATTRBIT_REFERRAL0 (NFSATTRBM_TYPE | NFSATTRBM_FSID | \
+ NFSATTRBM_RDATTRERROR | NFSATTRBM_FSLOCATIONS)
+#define NFSATTRBIT_REFERRAL1 NFSATTRBM_MOUNTEDONFILEID
+#define NFSATTRBIT_REFERRAL2 0
+
+/*
+ * Structure for data handled by the statfs rpc. Since some fields are
+ * u_int64_t, this cannot be used for copying data on/off the wire, due
+ * to alignment concerns.
+ */
+struct nfsstatfs {
+ union {
+ struct {
+ u_int32_t nfsv2sf_tsize;
+ u_int32_t nfsv2sf_bsize;
+ u_int32_t nfsv2sf_blocks;
+ u_int32_t nfsv2sf_bfree;
+ u_int32_t nfsv2sf_bavail;
+ } sf_nfsv2;
+ struct {
+ u_int64_t nfsv3sf_tbytes;
+ u_int64_t nfsv3sf_fbytes;
+ u_int64_t nfsv3sf_abytes;
+ u_int64_t nfsv3sf_tfiles;
+ u_int64_t nfsv3sf_ffiles;
+ u_int64_t nfsv3sf_afiles;
+ u_int32_t nfsv3sf_invarsec;
+ } sf_nfsv3;
+ } sf_un;
+};
+
+#define sf_tsize sf_un.sf_nfsv2.nfsv2sf_tsize
+#define sf_bsize sf_un.sf_nfsv2.nfsv2sf_bsize
+#define sf_blocks sf_un.sf_nfsv2.nfsv2sf_blocks
+#define sf_bfree sf_un.sf_nfsv2.nfsv2sf_bfree
+#define sf_bavail sf_un.sf_nfsv2.nfsv2sf_bavail
+#define sf_tbytes sf_un.sf_nfsv3.nfsv3sf_tbytes
+#define sf_fbytes sf_un.sf_nfsv3.nfsv3sf_fbytes
+#define sf_abytes sf_un.sf_nfsv3.nfsv3sf_abytes
+#define sf_tfiles sf_un.sf_nfsv3.nfsv3sf_tfiles
+#define sf_ffiles sf_un.sf_nfsv3.nfsv3sf_ffiles
+#define sf_afiles sf_un.sf_nfsv3.nfsv3sf_afiles
+#define sf_invarsec sf_un.sf_nfsv3.nfsv3sf_invarsec
+
+/*
+ * Now defined using u_int64_t for the 64 bit field(s).
+ * (Cannot be used to move data on/off the wire, due to alignment concerns.)
+ */
+struct nfsfsinfo {
+ u_int32_t fs_rtmax;
+ u_int32_t fs_rtpref;
+ u_int32_t fs_rtmult;
+ u_int32_t fs_wtmax;
+ u_int32_t fs_wtpref;
+ u_int32_t fs_wtmult;
+ u_int32_t fs_dtpref;
+ u_int64_t fs_maxfilesize;
+ struct timespec fs_timedelta;
+ u_int32_t fs_properties;
+};
+
+/*
+ * Bits for fs_properties
+ */
+#define NFSV3_FSFLINK 0x1
+#define NFSV3_FSFSYMLINK 0x2
+#define NFSV3_FSFHOMOGENEOUS 0x4
+#define NFSV3_FSFCANSETTIME 0x8
+
+/*
+ * Yikes, overload fs_rtmult as fs_maxname for V4.
+ */
+#define fs_maxname fs_rtmult
+
+struct nfsv3_pathconf {
+ u_int32_t pc_linkmax;
+ u_int32_t pc_namemax;
+ u_int32_t pc_notrunc;
+ u_int32_t pc_chownrestricted;
+ u_int32_t pc_caseinsensitive;
+ u_int32_t pc_casepreserving;
+};
+
+/*
+ * NFS V4 data structures.
+ */
+struct nfsv4stateid {
+ u_int32_t seqid;
+ u_int32_t other[NFSX_STATEIDOTHER / NFSX_UNSIGNED];
+};
+typedef struct nfsv4stateid nfsv4stateid_t;
+
+/* Notify bits and notify bitmap size. */
+#define NFSV4NOTIFY_CHANGE 1
+#define NFSV4NOTIFY_DELETE 2
+#define NFSV4_NOTIFYBITMAP 1 /* # of 32bit values needed for bits */
+
+/* Layoutreturn kinds. */
+#define NFSV4LAYOUTRET_FILE 1
+#define NFSV4LAYOUTRET_FSID 2
+#define NFSV4LAYOUTRET_ALL 3
+
+#endif /* _NFS_NFSPROTO_H_ */
diff --git a/freebsd/sys/fs/nfs/nfsrvcache.h b/freebsd/sys/fs/nfs/nfsrvcache.h
new file mode 100644
index 0000000..436dc4e
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsrvcache.h
@@ -0,0 +1,124 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSRVCACHE_H_
+#define _NFS_NFSRVCACHE_H_
+
+/*
+ * Definitions for the server recent request cache
+ */
+#define NFSRVCACHE_MAX_SIZE 2048
+#define NFSRVCACHE_MIN_SIZE 64
+
+#define NFSRVCACHE_HASHSIZE 500
+
+/* Cache table entry. */
+struct nfsrvcache {
+ LIST_ENTRY(nfsrvcache) rc_hash; /* Hash chain */
+ LIST_ENTRY(nfsrvcache) rc_ahash; /* ACK hash chain */
+ TAILQ_ENTRY(nfsrvcache) rc_lru; /* UDP lru chain */
+ u_int32_t rc_xid; /* rpc id number */
+ time_t rc_timestamp; /* Time done */
+ union {
+ mbuf_t repmb; /* Reply mbuf list OR */
+ int repstat; /* Reply status */
+ } rc_un;
+ union {
+ struct {
+ union nethostaddr haddr; /* Host address */
+ } udp;
+ struct {
+ u_int64_t sockref;
+ u_int32_t len;
+ u_int32_t tcpseq;
+ int16_t refcnt;
+ u_int16_t cksum;
+ time_t cachetime;
+ int acked;
+ } ot;
+ } rc_un2;
+ u_int16_t rc_proc; /* rpc proc number */
+ u_int16_t rc_flag; /* Flag bits */
+};
+
+#define rc_reply rc_un.repmb
+#define rc_status rc_un.repstat
+#define rc_inet rc_un2.udp.haddr.had_inet.s_addr
+#define rc_inet6 rc_un2.udp.haddr.had_inet6
+#define rc_haddr rc_un2.udp.haddr
+#define rc_sockref rc_un2.ot.sockref
+#define rc_tcpseq rc_un2.ot.tcpseq
+#define rc_refcnt rc_un2.ot.refcnt
+#define rc_reqlen rc_un2.ot.len
+#define rc_cksum rc_un2.ot.cksum
+#define rc_cachetime rc_un2.ot.cachetime
+#define rc_acked rc_un2.ot.acked
+
+/* TCP ACK values */
+#define RC_NO_SEQ 0
+#define RC_NO_ACK 1
+#define RC_ACK 2
+#define RC_NACK 3
+
+/* Return values */
+#define RC_DROPIT 0
+#define RC_REPLY 1
+#define RC_DOIT 2
+
+/* Flag bits */
+#define RC_LOCKED 0x0001
+#define RC_WANTED 0x0002
+#define RC_REPSTATUS 0x0004
+#define RC_REPMBUF 0x0008
+#define RC_UDP 0x0010
+#define RC_INETIPV6 0x0020
+#define RC_INPROG 0x0040
+#define RC_NFSV2 0x0100
+#define RC_NFSV3 0x0200
+#define RC_NFSV4 0x0400
+#define RC_NFSVERS (RC_NFSV2 | RC_NFSV3 | RC_NFSV4)
+#define RC_REFCNT 0x0800
+#define RC_SAMETCPCONN 0x1000
+
+LIST_HEAD(nfsrvhashhead, nfsrvcache);
+
+/* The fine-grained locked cache hash table for TCP. */
+struct nfsrchash_bucket {
+ struct mtx mtx;
+ struct nfsrvhashhead tbl;
+};
+
+#endif /* _NFS_NFSRVCACHE_H_ */
diff --git a/freebsd/sys/fs/nfs/nfsrvstate.h b/freebsd/sys/fs/nfs/nfsrvstate.h
new file mode 100644
index 0000000..2d60e8e
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsrvstate.h
@@ -0,0 +1,410 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSRVSTATE_H_
+#define _NFS_NFSRVSTATE_H_
+
+#if defined(_KERNEL) || defined(KERNEL)
+/*
+ * Definitions for NFS V4 server state handling.
+ */
+
+/*
+ * List heads for nfsclient, nfsstate and nfslockfile.
+ * (Some systems seem to like to dynamically size these things, but I
+ * don't see any point in doing so for these ones.)
+ */
+LIST_HEAD(nfsclienthashhead, nfsclient);
+LIST_HEAD(nfsstatehead, nfsstate);
+LIST_HEAD(nfslockhead, nfslock);
+LIST_HEAD(nfslockhashhead, nfslockfile);
+LIST_HEAD(nfssessionhead, nfsdsession);
+LIST_HEAD(nfssessionhashhead, nfsdsession);
+TAILQ_HEAD(nfslayouthead, nfslayout);
+SLIST_HEAD(nfsdsdirhead, nfsdsdir);
+TAILQ_HEAD(nfsdevicehead, nfsdevice);
+LIST_HEAD(nfsdontlisthead, nfsdontlist);
+
+/*
+ * List head for nfsusrgrp.
+ */
+TAILQ_HEAD(nfsuserhashhead, nfsusrgrp);
+
+#define NFSCLIENTHASH(id) \
+ (&nfsclienthash[(id).lval[1] % nfsrv_clienthashsize])
+#define NFSSTATEHASH(clp, id) \
+ (&((clp)->lc_stateid[(id).other[2] % nfsrv_statehashsize]))
+#define NFSUSERHASH(id) \
+ (&nfsuserhash[(id) % nfsrv_lughashsize])
+#define NFSUSERNAMEHASH(p, l) \
+ (&nfsusernamehash[((l)>=4?(*(p)+*((p)+1)+*((p)+2)+*((p)+3)):*(p)) \
+ % nfsrv_lughashsize])
+#define NFSGROUPHASH(id) \
+ (&nfsgrouphash[(id) % nfsrv_lughashsize])
+#define NFSGROUPNAMEHASH(p, l) \
+ (&nfsgroupnamehash[((l)>=4?(*(p)+*((p)+1)+*((p)+2)+*((p)+3)):*(p)) \
+ % nfsrv_lughashsize])
+
+struct nfssessionhash {
+ struct mtx mtx;
+ struct nfssessionhashhead list;
+};
+#define NFSSESSIONHASH(f) \
+ (&nfssessionhash[nfsrv_hashsessionid(f) % nfsrv_sessionhashsize])
+
+struct nfslayouthash {
+ struct mtx mtx;
+ struct nfslayouthead list;
+};
+#define NFSLAYOUTHASH(f) \
+ (&nfslayouthash[nfsrv_hashfh(f) % nfsrv_layouthashsize])
+
+/*
+ * Client server structure for V4. It is doubly linked into two lists.
+ * The first is a hash table based on the clientid and the second is a
+ * list of all clients maintained in LRU order.
+ * The actual size malloc'd is large enough to accommodate the id string.
+ */
+struct nfsclient {
+ LIST_ENTRY(nfsclient) lc_hash; /* Clientid hash list */
+ struct nfsstatehead *lc_stateid; /* Stateid hash */
+ struct nfsstatehead lc_open; /* Open owner list */
+ struct nfsstatehead lc_deleg; /* Delegations */
+ struct nfsstatehead lc_olddeleg; /* and old delegations */
+ struct nfssessionhead lc_session; /* List of NFSv4.1 sessions */
+ time_t lc_expiry; /* Expiry time (sec) */
+ time_t lc_delegtime; /* Old deleg expiry (sec) */
+ nfsquad_t lc_clientid; /* 64 bit clientid */
+ nfsquad_t lc_confirm; /* 64 bit confirm value */
+ u_int32_t lc_program; /* RPC Program # */
+ u_int32_t lc_callback; /* Callback id */
+ u_int32_t lc_stateindex; /* Current state index# */
+ u_int32_t lc_statemaxindex; /* Max state index# */
+ u_int32_t lc_cbref; /* Cnt of callbacks */
+ uid_t lc_uid; /* User credential */
+ gid_t lc_gid;
+ u_int16_t lc_idlen; /* Client ID and len */
+ u_int16_t lc_namelen; /* plus GSS principal and len */
+ u_char *lc_name;
+ struct nfssockreq lc_req; /* Callback info */
+ u_int32_t lc_flags; /* LCL_ flag bits */
+ u_char lc_verf[NFSX_VERF]; /* client verifier */
+ u_char lc_id[1]; /* Malloc'd correct size */
+};
+
+#define CLOPS_CONFIRM 0x0001
+#define CLOPS_RENEW 0x0002
+#define CLOPS_RENEWOP 0x0004
+
+/*
+ * Structure for NFSv4.1 Layouts.
+ * Malloc'd to correct size for the lay_xdr.
+ */
+struct nfslayout {
+ TAILQ_ENTRY(nfslayout) lay_list;
+ nfsv4stateid_t lay_stateid;
+ nfsquad_t lay_clientid;
+ fhandle_t lay_fh;
+ fsid_t lay_fsid;
+ uint32_t lay_layoutlen;
+ uint16_t lay_mirrorcnt;
+ uint16_t lay_trycnt;
+ uint16_t lay_type;
+ uint16_t lay_flags;
+ uint32_t lay_xdr[0];
+};
+
+/* Flags for lay_flags. */
+#define NFSLAY_READ 0x0001
+#define NFSLAY_RW 0x0002
+#define NFSLAY_RECALL 0x0004
+#define NFSLAY_RETURNED 0x0008
+#define NFSLAY_CALLB 0x0010
+
+/*
+ * Structure for an NFSv4.1 session.
+ * Locking rules for this structure.
+ * To add/delete one of these structures from the lists, you must lock
+ * both: NFSLOCKSTATE() and NFSLOCKSESSION(session hashhead) in that order.
+ * To traverse the lists looking for one of these, you must hold one
+ * of these two locks.
+ * The exception is if the thread holds the exclusive root sleep lock.
+ * In this case, all other nfsd threads are blocked, so locking the
+ * mutexes isn't required.
+ * When manipulating sess_refcnt, NFSLOCKSTATE() must be locked.
+ * When manipulating the fields withinsess_cbsess except nfsess_xprt,
+ * sess_cbsess.nfsess_mtx must be locked.
+ * When manipulating sess_slots and sess_cbsess.nfsess_xprt,
+ * NFSLOCKSESSION(session hashhead) must be locked.
+ */
+struct nfsdsession {
+ uint64_t sess_refcnt; /* Reference count. */
+ LIST_ENTRY(nfsdsession) sess_hash; /* Hash list of sessions. */
+ LIST_ENTRY(nfsdsession) sess_list; /* List of client sessions. */
+ struct nfsslot sess_slots[NFSV4_SLOTS];
+ struct nfsclient *sess_clp; /* Associated clientid. */
+ uint32_t sess_crflags;
+ uint32_t sess_cbprogram;
+ uint32_t sess_maxreq;
+ uint32_t sess_maxresp;
+ uint32_t sess_maxrespcached;
+ uint32_t sess_maxops;
+ uint32_t sess_maxslots;
+ uint32_t sess_cbmaxreq;
+ uint32_t sess_cbmaxresp;
+ uint32_t sess_cbmaxrespcached;
+ uint32_t sess_cbmaxops;
+ uint8_t sess_sessionid[NFSX_V4SESSIONID];
+ struct nfsclsession sess_cbsess; /* Callback session. */
+};
+
+/*
+ * Nfs state structure. I couldn't resist overloading this one, since
+ * it makes cleanup, etc. simpler. These structures are used in four ways:
+ * - open_owner structures chained off of nfsclient
+ * - open file structures chained off an open_owner structure
+ * - lock_owner structures chained off an open file structure
+ * - delegated file structures chained off of nfsclient and nfslockfile
+ * - the ls_list field is used for the chain it is in
+ * - the ls_head structure is used to chain off the sibling structure
+ * (it is a union between an nfsstate and nfslock structure head)
+ * If it is a lockowner stateid, nfslock structures hang off it.
+ * For the open file and lockowner cases, it is in the hash table in
+ * nfsclient for stateid.
+ */
+struct nfsstate {
+ LIST_ENTRY(nfsstate) ls_hash; /* Hash list entry */
+ LIST_ENTRY(nfsstate) ls_list; /* List of opens/delegs */
+ LIST_ENTRY(nfsstate) ls_file; /* Opens/Delegs for a file */
+ union {
+ struct nfsstatehead open; /* Opens list */
+ struct nfslockhead lock; /* Locks list */
+ } ls_head;
+ nfsv4stateid_t ls_stateid; /* The state id */
+ u_int32_t ls_seq; /* seq id */
+ uid_t ls_uid; /* uid of locker */
+ u_int32_t ls_flags; /* Type of lock, etc. */
+ union {
+ struct nfsstate *openowner; /* Open only */
+ u_int32_t opentolockseq; /* Lock call only */
+ u_int32_t noopens; /* Openowner only */
+ struct {
+ u_quad_t filerev; /* Delegations only */
+ time_t expiry;
+ time_t limit;
+ u_int64_t compref;
+ } deleg;
+ } ls_un;
+ struct nfslockfile *ls_lfp; /* Back pointer */
+ struct nfsrvcache *ls_op; /* Op cache reference */
+ struct nfsclient *ls_clp; /* Back pointer */
+ u_short ls_ownerlen; /* Length of ls_owner */
+ u_char ls_owner[1]; /* malloc'd the correct size */
+};
+#define ls_lock ls_head.lock
+#define ls_open ls_head.open
+#define ls_opentolockseq ls_un.opentolockseq
+#define ls_openowner ls_un.openowner
+#define ls_openstp ls_un.openowner
+#define ls_noopens ls_un.noopens
+#define ls_filerev ls_un.deleg.filerev
+#define ls_delegtime ls_un.deleg.expiry
+#define ls_delegtimelimit ls_un.deleg.limit
+#define ls_compref ls_un.deleg.compref
+
+/*
+ * Nfs lock structure.
+ * This structure is chained off of the nfsstate (the lockowner) and
+ * nfslockfile (the file) structures, for the file and owner it
+ * refers to. It holds flags and a byte range.
+ * It also has back pointers to the associated lock_owner and lockfile.
+ */
+struct nfslock {
+ LIST_ENTRY(nfslock) lo_lckowner;
+ LIST_ENTRY(nfslock) lo_lckfile;
+ struct nfsstate *lo_stp;
+ struct nfslockfile *lo_lfp;
+ u_int64_t lo_first;
+ u_int64_t lo_end;
+ u_int32_t lo_flags;
+};
+
+/*
+ * Structure used to return a conflicting lock. (Must be large
+ * enough for the largest lock owner we can have.)
+ */
+struct nfslockconflict {
+ nfsquad_t cl_clientid;
+ u_int64_t cl_first;
+ u_int64_t cl_end;
+ u_int32_t cl_flags;
+ u_short cl_ownerlen;
+ u_char cl_owner[NFSV4_OPAQUELIMIT];
+};
+
+/*
+ * This structure is used to keep track of local locks that might need
+ * to be rolled back.
+ */
+struct nfsrollback {
+ LIST_ENTRY(nfsrollback) rlck_list;
+ uint64_t rlck_first;
+ uint64_t rlck_end;
+ int rlck_type;
+};
+
+/*
+ * This structure refers to a file for which lock(s) and/or open(s) exist.
+ * Searched via hash table on file handle or found via the back pointer from an
+ * open or lock owner.
+ */
+struct nfslockfile {
+ LIST_HEAD(, nfsstate) lf_open; /* Open list */
+ LIST_HEAD(, nfsstate) lf_deleg; /* Delegation list */
+ LIST_HEAD(, nfslock) lf_lock; /* Lock list */
+ LIST_HEAD(, nfslock) lf_locallock; /* Local lock list */
+ LIST_HEAD(, nfsrollback) lf_rollback; /* Local lock rollback list */
+ LIST_ENTRY(nfslockfile) lf_hash; /* Hash list entry */
+ fhandle_t lf_fh; /* The file handle */
+ struct nfsv4lock lf_locallock_lck; /* serialize local locking */
+ int lf_usecount; /* Ref count for locking */
+};
+
+/*
+ * This structure is malloc'd an chained off hash lists for user/group
+ * names.
+ */
+struct nfsusrgrp {
+ TAILQ_ENTRY(nfsusrgrp) lug_numhash; /* Hash by id# */
+ TAILQ_ENTRY(nfsusrgrp) lug_namehash; /* and by name */
+ time_t lug_expiry; /* Expiry time in sec */
+ union {
+ uid_t un_uid; /* id# */
+ gid_t un_gid;
+ } lug_un;
+ struct ucred *lug_cred; /* Cred. with groups list */
+ int lug_namelen; /* Name length */
+ u_char lug_name[1]; /* malloc'd correct length */
+};
+#define lug_uid lug_un.un_uid
+#define lug_gid lug_un.un_gid
+
+/*
+ * These structures are used for the stable storage restart stuff.
+ */
+/*
+ * Record at beginning of file.
+ */
+struct nfsf_rec {
+ u_int32_t lease; /* Lease duration */
+ u_int32_t numboots; /* Number of boottimes */
+};
+
+void nfsrv_cleanclient(struct nfsclient *, NFSPROC_T *);
+void nfsrv_freedeleglist(struct nfsstatehead *);
+
+/*
+ * This structure is used to create the list of device info entries for
+ * a GetDeviceInfo operation and stores the DS server info.
+ * The nfsdev_addrandhost field has the fully qualified host domain name
+ * followed by the network address in XDR.
+ * It is allocated with nfsrv_dsdirsize nfsdev_dsdir[] entries.
+ */
+struct nfsdevice {
+ TAILQ_ENTRY(nfsdevice) nfsdev_list;
+ vnode_t nfsdev_dvp;
+ struct nfsmount *nfsdev_nmp;
+ char nfsdev_deviceid[NFSX_V4DEVICEID];
+ uint16_t nfsdev_hostnamelen;
+ uint16_t nfsdev_fileaddrlen;
+ uint16_t nfsdev_flexaddrlen;
+ uint16_t nfsdev_mdsisset;
+ char *nfsdev_fileaddr;
+ char *nfsdev_flexaddr;
+ char *nfsdev_host;
+ fsid_t nfsdev_mdsfsid;
+ uint32_t nfsdev_nextdir;
+ vnode_t nfsdev_dsdir[0];
+};
+
+/*
+ * This structure holds the va_size, va_filerev, va_atime, va_mtime and
+ * va_bytes for the DS file and is stored in the metadata file's extended
+ * attribute pnfsd.dsattr.
+ * opnfsdsattr was missing the va_bytes field and, as such, it was updated.
+ */
+struct opnfsdsattr {
+ uint64_t dsa_filerev;
+ uint64_t dsa_size;
+ struct timespec dsa_atime;
+ struct timespec dsa_mtime;
+};
+
+struct pnfsdsattr {
+ uint64_t dsa_filerev;
+ uint64_t dsa_size;
+ struct timespec dsa_atime;
+ struct timespec dsa_mtime;
+ uint64_t dsa_bytes;
+};
+
+/*
+ * This structure is a list element for a list the pNFS server uses to
+ * mark that the recovery of a mirror file is in progress.
+ */
+struct nfsdontlist {
+ LIST_ENTRY(nfsdontlist) nfsmr_list;
+ uint32_t nfsmr_flags;
+ fhandle_t nfsmr_fh;
+};
+
+/* nfsmr_flags bits. */
+#define NFSMR_DONTLAYOUT 0x00000001
+
+#endif /* defined(_KERNEL) || defined(KERNEL) */
+
+/*
+ * This structure holds the information about the DS file and is stored
+ * in the metadata file's extended attribute called pnfsd.dsfile.
+ */
+#define PNFS_FILENAME_LEN (2 * sizeof(fhandle_t))
+struct pnfsdsfile {
+ fhandle_t dsf_fh;
+ uint32_t dsf_dir;
+ union {
+ struct sockaddr_in sin;
+ struct sockaddr_in6 sin6;
+ } dsf_nam;
+ char dsf_filename[PNFS_FILENAME_LEN + 1];
+};
+#define dsf_sin dsf_nam.sin
+#define dsf_sin6 dsf_nam.sin6
+
+#endif /* _NFS_NFSRVSTATE_H_ */
diff --git a/freebsd/sys/fs/nfs/nfsv4_errstr.h b/freebsd/sys/fs/nfs/nfsv4_errstr.h
new file mode 100644
index 0000000..7d32425
--- /dev/null
+++ b/freebsd/sys/fs/nfs/nfsv4_errstr.h
@@ -0,0 +1,103 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSV4ERRSTR_H_
+#define _NFS_NFSV4ERRSTR_H_
+
+/*
+ * Defines static storage in the C file, but I can't be bothered creating
+ * a library of one function for this, since it is only currently used by
+ * mount_newnfs.c.
+ */
+static const char *nfsv4_errstr[48] = {
+ "Illegal filehandle",
+ "Undefined NFSv4 err",
+ "READDIR cookie is stale",
+ "operation not supported",
+ "response limit exceeded",
+ "undefined server error",
+ "type invalid for CREATE",
+ "file busy - retry",
+ "nverify says attrs same",
+ "lock unavailable",
+ "lock lease expired",
+ "I/O failed due to lock",
+ "in grace period",
+ "filehandle expired",
+ "share reserve denied",
+ "wrong security flavor",
+ "clientid in use",
+ "resource exhaustion",
+ "filesystem relocated",
+ "current FH is not set",
+ "minor vers not supp",
+ "server has rebooted",
+ "server has rebooted",
+ "state is out of sync",
+ "incorrect stateid",
+ "request is out of seq",
+ "verify - attrs not same",
+ "lock range not supported",
+ "should be file/directory",
+ "no saved filehandle",
+ "some filesystem moved",
+ "recommended attr not sup",
+ "reclaim outside of grace",
+ "reclaim error at server",
+ "conflict on reclaim",
+ "XDR decode failed",
+ "file locks held at CLOSE",
+ "conflict in OPEN and I/O",
+ "owner translation bad",
+ "utf-8 char not supported",
+ "name not supported",
+ "lock range not supported",
+ "no atomic up/downgrade",
+ "undefined operation",
+ "file locking deadlock",
+ "open file blocks op",
+ "lockowner state revoked",
+ "callback path down"
+};
+
+/*
+ * Return the error string for the NFS4ERR_xxx. The pointers returned are
+ * static and must not be free'd.
+ */
+static const char *
+nfsv4_geterrstr(int errval)
+{
+
+ if (errval < NFSERR_BADHANDLE || errval > NFSERR_CBPATHDOWN)
+ return (NULL);
+ return (nfsv4_errstr[errval - NFSERR_BADHANDLE]);
+}
+
+#endif /* _NFS_NFSV4ERRSTR_H_ */
diff --git a/freebsd/sys/fs/nfs/rpcv2.h b/freebsd/sys/fs/nfs/rpcv2.h
new file mode 100644
index 0000000..799d9d6
--- /dev/null
+++ b/freebsd/sys/fs/nfs/rpcv2.h
@@ -0,0 +1,209 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_RPCV2_H_
+#define _NFS_RPCV2_H_
+
+/*
+ * Definitions for Sun RPC Version 2, from
+ * "RPC: Remote Procedure Call Protocol Specification" RFC1057
+ */
+
+/* Version # */
+#define RPC_VER2 2
+
+/* Authentication flavours */
+#define RPCAUTH_NULL 0
+#define RPCAUTH_UNIX 1
+#define RPCAUTH_SHORT 2
+#define RPCAUTH_KERB4 4
+#define RPCAUTH_GSS 6
+#define RPCAUTH_GSSKRB5 390003
+#define RPCAUTH_GSSKRB5INTEGRITY 390004
+#define RPCAUTH_GSSKRB5PRIVACY 390005
+
+#define RPCAUTH_MAXSIZ 400
+#define RPCVERF_MAXSIZ 12 /* For Kerb, can actually be 400 */
+
+/*
+ * RPCAUTH_UNIX defs.
+ */
+#define RPCAUTHUNIX_MINSIZ (5 * NFSX_UNSIGNED)
+#define RPCAUTH_UNIXGIDS 16
+
+/*
+ * RPCAUTH_GSS defs.
+ */
+#define RPCAUTHGSS_VERS1 1
+
+#define RPCAUTHGSS_DATA 0
+#define RPCAUTHGSS_INIT 1
+#define RPCAUTHGSS_CONTINIT 2
+#define RPCAUTHGSS_DESTROY 3
+
+#define RPCAUTHGSS_SVCNONE 1
+#define RPCAUTHGSS_SVCINTEGRITY 2
+#define RPCAUTHGSS_SVCPRIVACY 3
+
+#define RPCAUTHGSS_MAXSEQ 0x80000000
+
+#define RPCAUTHGSS_WINDOW 64 /* # of bits in u_int64_t */
+#define RPCAUTHGSS_SEQWINDOW (RPCAUTHGSS_WINDOW + 1)
+
+#define RPCAUTHGSS_MIC 1
+#define RPCAUTHGSS_WRAP 2
+
+/*
+ * Qop values for the types of security services.
+ */
+#define GSS_KERBV_QOP 0
+
+/*
+ * Sizes of GSS stuff.
+ */
+#define RPCGSS_KEYSIZ 8
+
+#define GSSX_AUTHHEAD (5 * NFSX_UNSIGNED)
+#define GSSX_MYHANDLE (sizeof (long) + sizeof (u_int64_t))
+#define GSSX_RPCHEADER (13 * NFSX_UNSIGNED + GSSX_MYHANDLE)
+#define GSSX_MINWRAP (2 * NFSX_UNSIGNED)
+#define GSSX_KERBVTOKEN 24
+#define GSSX_LOCALHANDLE (sizeof (void *))
+
+/*
+ * Stuff for the gssd.
+ */
+#define RPCPROG_GSSD 0x20101010
+#define RPCGSSD_VERS 1
+#define RPCGSSD_INIT 1
+#define RPCGSSD_CONTINIT 2
+#define RPCGSSD_CONTINITDESTROY 3
+#define RPCGSSD_CLINIT 4
+#define RPCGSSD_CLINITUID 5
+#define RPCGSSD_CLCONT 6
+#define RPCGSSD_CLCONTUID 7
+#define RPCGSSD_CLINITNAME 8
+#define RPCGSSD_CLCONTNAME 9
+
+/*
+ * Stuff for the nfsuserd
+ */
+#define RPCPROG_NFSUSERD 0x21010101
+#define RPCNFSUSERD_VERS 1
+#define RPCNFSUSERD_GETUID 1
+#define RPCNFSUSERD_GETGID 2
+#define RPCNFSUSERD_GETUSER 3
+#define RPCNFSUSERD_GETGROUP 4
+
+/*
+ * Some major status codes.
+ */
+#if !defined(_GSSAPI_H_) && !defined(GSSAPI_H_) && !defined(_GSSAPI_GSSAPI_H_) && !defined(_RPCSEC_GSS_H)
+#define GSS_S_COMPLETE 0x00000000
+#define GSS_S_CONTINUE_NEEDED 0x00000001
+#define GSS_S_DUPLICATE_TOKEN 0x00000002
+#define GSS_S_OLD_TOKEN 0x00000004
+#define GSS_S_UNSEQ_TOKEN 0x00000008
+#define GSS_S_GAP_TOKEN 0x00000010
+#define GSS_S_BAD_MECH 0x00010000
+#define GSS_S_BAD_NAME 0x00020000
+#define GSS_S_BAD_NAMETYPE 0x00030000
+#define GSS_S_BAD_BINDINGS 0x00040000
+#define GSS_S_BAD_STATUS 0x00050000
+#define GSS_S_BAD_MIC 0x00060000
+#define GSS_S_BAD_SIG 0x00060000
+#define GSS_S_NO_CRED 0x00070000
+#define GSS_S_NO_CONTEXT 0x00080000
+#define GSS_S_DEFECTIVE_TOKEN 0x00090000
+#define GSS_S_DEFECTIVE_CREDENTIAL 0x000a0000
+#define GSS_S_CREDENTIALS_EXPIRED 0x000b0000
+#define GSS_S_CONTEXT_EXPIRED 0x000c0000
+#define GSS_S_FAILURE 0x000d0000
+#define GSS_S_BAD_QOP 0x000e0000
+#define GSS_S_UNAUTHORIZED 0x000f0000
+#define GSS_S_UNAVAILABLE 0x00100000
+#define GSS_S_DUPLICATE_ELEMENT 0x00110000
+#define GSS_S_NAME_NOT_MN 0x00120000
+#define GSS_S_CALL_INACCESSIBLE_READ 0x01000000
+#define GSS_S_CALL_INACCESSIBLE_WRITE 0x02000000
+#define GSS_S_CALL_BAD_STRUCTURE 0x03000000
+#endif /* _GSSAPI_H_ */
+
+/* Rpc Constants */
+#define RPC_CALL 0
+#define RPC_REPLY 1
+#define RPC_MSGACCEPTED 0
+#define RPC_MSGDENIED 1
+#define RPC_PROGUNAVAIL 1
+#define RPC_PROGMISMATCH 2
+#define RPC_PROCUNAVAIL 3
+#define RPC_GARBAGE 4 /* I like this one */
+#define RPC_MISMATCH 0
+#define RPC_AUTHERR 1
+
+/* Authentication failures */
+#define AUTH_BADCRED 1
+#define AUTH_REJECTCRED 2
+#define AUTH_BADVERF 3
+#define AUTH_REJECTVERF 4
+#define AUTH_TOOWEAK 5 /* Give em wheaties */
+#define AUTH_PROBCRED 13
+#define AUTH_CTXCRED 14
+
+/* Sizes of rpc header parts */
+#define RPC_SIZ 24
+#define RPC_REPLYSIZ 28
+
+/* RPC Prog definitions */
+#define RPCPROG_MNT 100005
+#define RPCMNT_VER1 1
+#define RPCMNT_VER3 3
+#define RPCMNT_MOUNT 1
+#define RPCMNT_DUMP 2
+#define RPCMNT_UMOUNT 3
+#define RPCMNT_UMNTALL 4
+#define RPCMNT_EXPORT 5
+#define RPCMNT_NAMELEN 255
+#define RPCMNT_PATHLEN 1024
+#define RPCPROG_NFS 100003
+
+/* Structs for common parts of the rpc's */
+struct rpcv2_time {
+ u_int32_t rpc_sec;
+ u_int32_t rpc_usec;
+};
+
+#endif /* _NFS_RPCV2_H_ */
diff --git a/freebsd/sys/fs/nfs/xdr_subs.h b/freebsd/sys/fs/nfs/xdr_subs.h
new file mode 100644
index 0000000..54c7d91
--- /dev/null
+++ b/freebsd/sys/fs/nfs/xdr_subs.h
@@ -0,0 +1,101 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_XDR_SUBS_H_
+#define _NFS_XDR_SUBS_H_
+
+/*
+ * Macros used for conversion to/from xdr representation by nfs...
+ * These use the MACHINE DEPENDENT routines ntohl, htonl
+ * As defined by "XDR: External Data Representation Standard" RFC1014
+ *
+ * To simplify the implementation, we use ntohl/htonl even on big-endian
+ * machines, and count on them being `#define'd away. Some of these
+ * might be slightly more efficient as quad_t copies on a big-endian,
+ * but we cannot count on their alignment anyway.
+ */
+
+#define fxdr_unsigned(t, v) ((t)ntohl((int32_t)(v)))
+#define txdr_unsigned(v) (htonl((int32_t)(v)))
+
+#define fxdr_nfsv2time(f, t) do { \
+ (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
+ if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
+ (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
+ else \
+ (t)->tv_nsec = 0; \
+ } while (0)
+
+#define txdr_nfsv2time(f, t) do { \
+ ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
+ if ((f)->tv_nsec != -1) \
+ ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
+ else \
+ ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
+ } while (0)
+
+#define fxdr_nfsv3time(f, t) do { \
+ (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
+ (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
+ } while (0)
+
+#define txdr_nfsv3time(f, t) do { \
+ ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
+ ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
+ } while (0)
+
+#define fxdr_nfsv4time(f, t) do { \
+ (t)->tv_sec = ntohl(((struct nfsv4_time *)(f))->nfsv4_sec); \
+ (t)->tv_nsec = (ntohl(((struct nfsv4_time *)(f))->nfsv4_nsec) % \
+ 1000000000); \
+ } while (0)
+
+#define txdr_nfsv4time(f, t) do { \
+ ((struct nfsv4_time *)(t))->nfsv4_highsec = 0; \
+ ((struct nfsv4_time *)(t))->nfsv4_sec = htonl((f)->tv_sec); \
+ ((struct nfsv4_time *)(t))->nfsv4_nsec = htonl((f)->tv_nsec); \
+ } while (0)
+
+#define fxdr_hyper(f) \
+ ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) | \
+ (u_quad_t)(ntohl(((u_int32_t *)(f))[1])))
+
+#define txdr_hyper(f, t) do { \
+ ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32)); \
+ ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff)); \
+ } while (0)
+
+#endif /* _NFS_XDR_SUBS_H_ */
diff --git a/freebsd/sys/fs/nfsclient/nfs.h b/freebsd/sys/fs/nfsclient/nfs.h
new file mode 100644
index 0000000..ce1747a
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs.h
@@ -0,0 +1,128 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFS_H_
+#define _NFSCLIENT_NFS_H_
+
+#if defined(_KERNEL)
+
+#ifndef NFS_TPRINTF_INITIAL_DELAY
+#define NFS_TPRINTF_INITIAL_DELAY 12
+#endif
+
+#ifndef NFS_TPRINTF_DELAY
+#define NFS_TPRINTF_DELAY 30
+#endif
+
+/*
+ * Nfs version macros.
+ */
+#define NFS_ISV3(v) \
+ (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
+#define NFS_ISV4(v) \
+ (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV4)
+#define NFS_ISV34(v) \
+ (VFSTONFS((v)->v_mount)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
+
+#ifdef NFS_DEBUG
+
+extern int nfs_debug;
+#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
+#define NFS_DEBUG_WG 2 /* server write gathering */
+#define NFS_DEBUG_RC 4 /* server request caching */
+
+#define NFS_DPF(cat, args) \
+ do { \
+ if (nfs_debug & NFS_DEBUG_##cat) printf args; \
+ } while (0)
+
+#else
+
+#define NFS_DPF(cat, args)
+
+#endif
+
+/*
+ * NFS iod threads can be in one of these three states once spawned.
+ * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time.
+ * NFSIOD_AVAILABLE - Available to be assigned an I/O operation.
+ * NFSIOD_CREATED_FOR_NFS_ASYNCIO - Newly created for nfs_asyncio() and
+ * will be used by the thread that called nfs_asyncio().
+ */
+enum nfsiod_state {
+ NFSIOD_NOT_AVAILABLE = 0,
+ NFSIOD_AVAILABLE = 1,
+ NFSIOD_CREATED_FOR_NFS_ASYNCIO = 2,
+};
+
+/*
+ * Function prototypes.
+ */
+int ncl_meta_setsize(struct vnode *, struct thread *, u_quad_t);
+void ncl_doio_directwrite(struct buf *);
+int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *);
+int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *);
+int ncl_vinvalbuf(struct vnode *, int, struct thread *, int);
+int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *,
+ struct thread *);
+int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *,
+ int);
+void ncl_nhinit(void);
+void ncl_nhuninit(void);
+void ncl_nodelock(struct nfsnode *);
+void ncl_nodeunlock(struct nfsnode *);
+int ncl_getattrcache(struct vnode *, struct vattr *);
+int ncl_readrpc(struct vnode *, struct uio *, struct ucred *);
+int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *,
+ int);
+int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *);
+int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *,
+ struct thread *);
+int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *,
+ struct thread *);
+int ncl_writebp(struct buf *, int, struct thread *);
+int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *);
+void ncl_clearcommit(struct mount *);
+int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
+ struct thread *);
+int ncl_init(struct vfsconf *);
+int ncl_uninit(struct vfsconf *);
+void ncl_nfsiodnew(void);
+void ncl_nfsiodnew_tq(__unused void *, int);
+
+#endif /* _KERNEL */
+
+#endif /* _NFSCLIENT_NFS_H_ */
diff --git a/freebsd/sys/fs/nfsclient/nfs_clbio.c b/freebsd/sys/fs/nfsclient/nfs_clbio.c
new file mode 100644
index 0000000..105ab25
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clbio.c
@@ -0,0 +1,1874 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfs_bio.c 8.9 (Berkeley) 3/30/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/kernel.h>
+#include <sys/mount.h>
+#include <sys/rwlock.h>
+#include <sys/vmmeter.h>
+#include <sys/vnode.h>
+
+#include <vm/vm.h>
+#include <vm/vm_param.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_page.h>
+#include <vm/vm_object.h>
+#include <vm/vm_pager.h>
+#include <vm/vnode_pager.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <fs/nfsclient/nfsnode.h>
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+extern int newnfs_directio_allow_mmap;
+extern struct nfsstatsv1 nfsstatsv1;
+extern struct mtx ncl_iod_mutex;
+extern int ncl_numasync;
+extern enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
+extern struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
+extern int newnfs_directio_enable;
+extern int nfs_keep_dirty_on_error;
+
+int ncl_pbuf_freecnt = -1; /* start out unlimited */
+
+static struct buf *nfs_getcacheblk(struct vnode *vp, daddr_t bn, int size,
+ struct thread *td);
+static int nfs_directio_write(struct vnode *vp, struct uio *uiop,
+ struct ucred *cred, int ioflag);
+
+/*
+ * Vnode op for VM getpages.
+ */
+SYSCTL_DECL(_vfs_nfs);
+static int use_buf_pager = 1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, use_buf_pager, CTLFLAG_RWTUN,
+ &use_buf_pager, 0,
+ "Use buffer pager instead of direct readrpc call");
+
+static daddr_t
+ncl_gbp_getblkno(struct vnode *vp, vm_ooffset_t off)
+{
+
+ return (off / vp->v_bufobj.bo_bsize);
+}
+
+static int
+ncl_gbp_getblksz(struct vnode *vp, daddr_t lbn)
+{
+ struct nfsnode *np;
+ u_quad_t nsize;
+ int biosize, bcount;
+
+ np = VTONFS(vp);
+ NFSLOCKNODE(np);
+ nsize = np->n_size;
+ NFSUNLOCKNODE(np);
+
+ biosize = vp->v_bufobj.bo_bsize;
+ bcount = biosize;
+ if ((off_t)lbn * biosize >= nsize)
+ bcount = 0;
+ else if ((off_t)(lbn + 1) * biosize > nsize)
+ bcount = nsize - (off_t)lbn * biosize;
+ return (bcount);
+}
+
+int
+ncl_getpages(struct vop_getpages_args *ap)
+{
+ int i, error, nextoff, size, toff, count, npages;
+ struct uio uio;
+ struct iovec iov;
+ vm_offset_t kva;
+ struct buf *bp;
+ struct vnode *vp;
+ struct thread *td;
+ struct ucred *cred;
+ struct nfsmount *nmp;
+ vm_object_t object;
+ vm_page_t *pages;
+ struct nfsnode *np;
+
+ vp = ap->a_vp;
+ np = VTONFS(vp);
+ td = curthread;
+ cred = curthread->td_ucred;
+ nmp = VFSTONFS(vp->v_mount);
+ pages = ap->a_m;
+ npages = ap->a_count;
+
+ if ((object = vp->v_object) == NULL) {
+ printf("ncl_getpages: called with non-merged cache vnode\n");
+ return (VM_PAGER_ERROR);
+ }
+
+ if (newnfs_directio_enable && !newnfs_directio_allow_mmap) {
+ NFSLOCKNODE(np);
+ if ((np->n_flag & NNONCACHE) && (vp->v_type == VREG)) {
+ NFSUNLOCKNODE(np);
+ printf("ncl_getpages: called on non-cacheable vnode\n");
+ return (VM_PAGER_ERROR);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_flag & NFSMNT_NFSV3) != 0 &&
+ (nmp->nm_state & NFSSTA_GOTFSINFO) == 0) {
+ mtx_unlock(&nmp->nm_mtx);
+ /* We'll never get here for v4, because we always have fsinfo */
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+
+ if (use_buf_pager)
+ return (vfs_bio_getpages(vp, pages, npages, ap->a_rbehind,
+ ap->a_rahead, ncl_gbp_getblkno, ncl_gbp_getblksz));
+
+ /*
+ * If the requested page is partially valid, just return it and
+ * allow the pager to zero-out the blanks. Partially valid pages
+ * can only occur at the file EOF.
+ *
+ * XXXGL: is that true for NFS, where short read can occur???
+ */
+ VM_OBJECT_WLOCK(object);
+ if (pages[npages - 1]->valid != 0 && --npages == 0)
+ goto out;
+ VM_OBJECT_WUNLOCK(object);
+
+ /*
+ * We use only the kva address for the buffer, but this is extremely
+ * convenient and fast.
+ */
+ bp = getpbuf(&ncl_pbuf_freecnt);
+
+ kva = (vm_offset_t) bp->b_data;
+ pmap_qenter(kva, pages, npages);
+ VM_CNT_INC(v_vnodein);
+ VM_CNT_ADD(v_vnodepgsin, npages);
+
+ count = npages << PAGE_SHIFT;
+ iov.iov_base = (caddr_t) kva;
+ iov.iov_len = count;
+ uio.uio_iov = &iov;
+ uio.uio_iovcnt = 1;
+ uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
+ uio.uio_resid = count;
+ uio.uio_segflg = UIO_SYSSPACE;
+ uio.uio_rw = UIO_READ;
+ uio.uio_td = td;
+
+ error = ncl_readrpc(vp, &uio, cred);
+ pmap_qremove(kva, npages);
+
+ relpbuf(bp, &ncl_pbuf_freecnt);
+
+ if (error && (uio.uio_resid == count)) {
+ printf("ncl_getpages: error %d\n", error);
+ return (VM_PAGER_ERROR);
+ }
+
+ /*
+ * Calculate the number of bytes read and validate only that number
+ * of bytes. Note that due to pending writes, size may be 0. This
+ * does not mean that the remaining data is invalid!
+ */
+
+ size = count - uio.uio_resid;
+ VM_OBJECT_WLOCK(object);
+ for (i = 0, toff = 0; i < npages; i++, toff = nextoff) {
+ vm_page_t m;
+ nextoff = toff + PAGE_SIZE;
+ m = pages[i];
+
+ if (nextoff <= size) {
+ /*
+ * Read operation filled an entire page
+ */
+ m->valid = VM_PAGE_BITS_ALL;
+ KASSERT(m->dirty == 0,
+ ("nfs_getpages: page %p is dirty", m));
+ } else if (size > toff) {
+ /*
+ * Read operation filled a partial page.
+ */
+ m->valid = 0;
+ vm_page_set_valid_range(m, 0, size - toff);
+ KASSERT(m->dirty == 0,
+ ("nfs_getpages: page %p is dirty", m));
+ } else {
+ /*
+ * Read operation was short. If no error
+ * occurred we may have hit a zero-fill
+ * section. We leave valid set to 0, and page
+ * is freed by vm_page_readahead_finish() if
+ * its index is not equal to requested, or
+ * page is zeroed and set valid by
+ * vm_pager_get_pages() for requested page.
+ */
+ ;
+ }
+ }
+out:
+ VM_OBJECT_WUNLOCK(object);
+ if (ap->a_rbehind)
+ *ap->a_rbehind = 0;
+ if (ap->a_rahead)
+ *ap->a_rahead = 0;
+ return (VM_PAGER_OK);
+}
+
+/*
+ * Vnode op for VM putpages.
+ */
+int
+ncl_putpages(struct vop_putpages_args *ap)
+{
+ struct uio uio;
+ struct iovec iov;
+ int i, error, npages, count;
+ off_t offset;
+ int *rtvals;
+ struct vnode *vp;
+ struct thread *td;
+ struct ucred *cred;
+ struct nfsmount *nmp;
+ struct nfsnode *np;
+ vm_page_t *pages;
+
+ vp = ap->a_vp;
+ np = VTONFS(vp);
+ td = curthread; /* XXX */
+ /* Set the cred to n_writecred for the write rpcs. */
+ if (np->n_writecred != NULL)
+ cred = crhold(np->n_writecred);
+ else
+ cred = crhold(curthread->td_ucred); /* XXX */
+ nmp = VFSTONFS(vp->v_mount);
+ pages = ap->a_m;
+ count = ap->a_count;
+ rtvals = ap->a_rtvals;
+ npages = btoc(count);
+ offset = IDX_TO_OFF(pages[0]->pindex);
+
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_flag & NFSMNT_NFSV3) != 0 &&
+ (nmp->nm_state & NFSSTA_GOTFSINFO) == 0) {
+ mtx_unlock(&nmp->nm_mtx);
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+
+ NFSLOCKNODE(np);
+ if (newnfs_directio_enable && !newnfs_directio_allow_mmap &&
+ (np->n_flag & NNONCACHE) && (vp->v_type == VREG)) {
+ NFSUNLOCKNODE(np);
+ printf("ncl_putpages: called on noncache-able vnode\n");
+ NFSLOCKNODE(np);
+ }
+ /*
+ * When putting pages, do not extend file past EOF.
+ */
+ if (offset + count > np->n_size) {
+ count = np->n_size - offset;
+ if (count < 0)
+ count = 0;
+ }
+ NFSUNLOCKNODE(np);
+
+ for (i = 0; i < npages; i++)
+ rtvals[i] = VM_PAGER_ERROR;
+
+ VM_CNT_INC(v_vnodeout);
+ VM_CNT_ADD(v_vnodepgsout, count);
+
+ iov.iov_base = unmapped_buf;
+ iov.iov_len = count;
+ uio.uio_iov = &iov;
+ uio.uio_iovcnt = 1;
+ uio.uio_offset = offset;
+ uio.uio_resid = count;
+ uio.uio_segflg = UIO_NOCOPY;
+ uio.uio_rw = UIO_WRITE;
+ uio.uio_td = td;
+
+ error = VOP_WRITE(vp, &uio, vnode_pager_putpages_ioflags(ap->a_sync),
+ cred);
+ crfree(cred);
+
+ if (error == 0 || !nfs_keep_dirty_on_error) {
+ vnode_pager_undirty_pages(pages, rtvals, count - uio.uio_resid,
+ np->n_size - offset, npages * PAGE_SIZE);
+ }
+ return (rtvals[0]);
+}
+
+/*
+ * For nfs, cache consistency can only be maintained approximately.
+ * Although RFC1094 does not specify the criteria, the following is
+ * believed to be compatible with the reference port.
+ * For nfs:
+ * If the file's modify time on the server has changed since the
+ * last read rpc or you have written to the file,
+ * you may have lost data cache consistency with the
+ * server, so flush all of the file's data out of the cache.
+ * Then force a getattr rpc to ensure that you have up to date
+ * attributes.
+ * NB: This implies that cache data can be read when up to
+ * NFS_ATTRTIMEO seconds out of date. If you find that you need current
+ * attributes this could be forced by setting n_attrstamp to 0 before
+ * the VOP_GETATTR() call.
+ */
+static inline int
+nfs_bioread_check_cons(struct vnode *vp, struct thread *td, struct ucred *cred)
+{
+ int error = 0;
+ struct vattr vattr;
+ struct nfsnode *np = VTONFS(vp);
+ bool old_lock;
+
+ /*
+ * Ensure the exclusove access to the node before checking
+ * whether the cache is consistent.
+ */
+ old_lock = ncl_excl_start(vp);
+ NFSLOCKNODE(np);
+ if (np->n_flag & NMODIFIED) {
+ NFSUNLOCKNODE(np);
+ if (vp->v_type != VREG) {
+ if (vp->v_type != VDIR)
+ panic("nfs: bioread, not dir");
+ ncl_invaldir(vp);
+ error = ncl_vinvalbuf(vp, V_SAVE | V_ALLOWCLEAN, td, 1);
+ if (error != 0)
+ goto out;
+ }
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ error = VOP_GETATTR(vp, &vattr, cred);
+ if (error)
+ goto out;
+ NFSLOCKNODE(np);
+ np->n_mtime = vattr.va_mtime;
+ NFSUNLOCKNODE(np);
+ } else {
+ NFSUNLOCKNODE(np);
+ error = VOP_GETATTR(vp, &vattr, cred);
+ if (error)
+ goto out;
+ NFSLOCKNODE(np);
+ if ((np->n_flag & NSIZECHANGED)
+ || (NFS_TIMESPEC_COMPARE(&np->n_mtime, &vattr.va_mtime))) {
+ NFSUNLOCKNODE(np);
+ if (vp->v_type == VDIR)
+ ncl_invaldir(vp);
+ error = ncl_vinvalbuf(vp, V_SAVE | V_ALLOWCLEAN, td, 1);
+ if (error != 0)
+ goto out;
+ NFSLOCKNODE(np);
+ np->n_mtime = vattr.va_mtime;
+ np->n_flag &= ~NSIZECHANGED;
+ }
+ NFSUNLOCKNODE(np);
+ }
+out:
+ ncl_excl_finish(vp, old_lock);
+ return (error);
+}
+
+/*
+ * Vnode op for read using bio
+ */
+int
+ncl_bioread(struct vnode *vp, struct uio *uio, int ioflag, struct ucred *cred)
+{
+ struct nfsnode *np = VTONFS(vp);
+ int biosize, i;
+ struct buf *bp, *rabp;
+ struct thread *td;
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ daddr_t lbn, rabn;
+ int bcount;
+ int seqcount;
+ int nra, error = 0, n = 0, on = 0;
+ off_t tmp_off;
+
+ KASSERT(uio->uio_rw == UIO_READ, ("ncl_read mode"));
+ if (uio->uio_resid == 0)
+ return (0);
+ if (uio->uio_offset < 0) /* XXX VDIR cookies can be negative */
+ return (EINVAL);
+ td = uio->uio_td;
+
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_flag & NFSMNT_NFSV3) != 0 &&
+ (nmp->nm_state & NFSSTA_GOTFSINFO) == 0) {
+ mtx_unlock(&nmp->nm_mtx);
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+ mtx_lock(&nmp->nm_mtx);
+ }
+ if (nmp->nm_rsize == 0 || nmp->nm_readdirsize == 0)
+ (void) newnfs_iosize(nmp);
+
+ tmp_off = uio->uio_offset + uio->uio_resid;
+ if (vp->v_type != VDIR &&
+ (tmp_off > nmp->nm_maxfilesize || tmp_off < uio->uio_offset)) {
+ mtx_unlock(&nmp->nm_mtx);
+ return (EFBIG);
+ }
+ mtx_unlock(&nmp->nm_mtx);
+
+ if (newnfs_directio_enable && (ioflag & IO_DIRECT) && (vp->v_type == VREG))
+ /* No caching/ no readaheads. Just read data into the user buffer */
+ return ncl_readrpc(vp, uio, cred);
+
+ biosize = vp->v_bufobj.bo_bsize;
+ seqcount = (int)((off_t)(ioflag >> IO_SEQSHIFT) * biosize / BKVASIZE);
+
+ error = nfs_bioread_check_cons(vp, td, cred);
+ if (error)
+ return error;
+
+ do {
+ u_quad_t nsize;
+
+ NFSLOCKNODE(np);
+ nsize = np->n_size;
+ NFSUNLOCKNODE(np);
+
+ switch (vp->v_type) {
+ case VREG:
+ NFSINCRGLOBAL(nfsstatsv1.biocache_reads);
+ lbn = uio->uio_offset / biosize;
+ on = uio->uio_offset - (lbn * biosize);
+
+ /*
+ * Start the read ahead(s), as required.
+ */
+ if (nmp->nm_readahead > 0) {
+ for (nra = 0; nra < nmp->nm_readahead && nra < seqcount &&
+ (off_t)(lbn + 1 + nra) * biosize < nsize; nra++) {
+ rabn = lbn + 1 + nra;
+ if (incore(&vp->v_bufobj, rabn) == NULL) {
+ rabp = nfs_getcacheblk(vp, rabn, biosize, td);
+ if (!rabp) {
+ error = newnfs_sigintr(nmp, td);
+ return (error ? error : EINTR);
+ }
+ if ((rabp->b_flags & (B_CACHE|B_DELWRI)) == 0) {
+ rabp->b_flags |= B_ASYNC;
+ rabp->b_iocmd = BIO_READ;
+ vfs_busy_pages(rabp, 0);
+ if (ncl_asyncio(nmp, rabp, cred, td)) {
+ rabp->b_flags |= B_INVAL;
+ rabp->b_ioflags |= BIO_ERROR;
+ vfs_unbusy_pages(rabp);
+ brelse(rabp);
+ break;
+ }
+ } else {
+ brelse(rabp);
+ }
+ }
+ }
+ }
+
+ /* Note that bcount is *not* DEV_BSIZE aligned. */
+ bcount = biosize;
+ if ((off_t)lbn * biosize >= nsize) {
+ bcount = 0;
+ } else if ((off_t)(lbn + 1) * biosize > nsize) {
+ bcount = nsize - (off_t)lbn * biosize;
+ }
+ bp = nfs_getcacheblk(vp, lbn, bcount, td);
+
+ if (!bp) {
+ error = newnfs_sigintr(nmp, td);
+ return (error ? error : EINTR);
+ }
+
+ /*
+ * If B_CACHE is not set, we must issue the read. If this
+ * fails, we return an error.
+ */
+
+ if ((bp->b_flags & B_CACHE) == 0) {
+ bp->b_iocmd = BIO_READ;
+ vfs_busy_pages(bp, 0);
+ error = ncl_doio(vp, bp, cred, td, 0);
+ if (error) {
+ brelse(bp);
+ return (error);
+ }
+ }
+
+ /*
+ * on is the offset into the current bp. Figure out how many
+ * bytes we can copy out of the bp. Note that bcount is
+ * NOT DEV_BSIZE aligned.
+ *
+ * Then figure out how many bytes we can copy into the uio.
+ */
+
+ n = 0;
+ if (on < bcount)
+ n = MIN((unsigned)(bcount - on), uio->uio_resid);
+ break;
+ case VLNK:
+ NFSINCRGLOBAL(nfsstatsv1.biocache_readlinks);
+ bp = nfs_getcacheblk(vp, (daddr_t)0, NFS_MAXPATHLEN, td);
+ if (!bp) {
+ error = newnfs_sigintr(nmp, td);
+ return (error ? error : EINTR);
+ }
+ if ((bp->b_flags & B_CACHE) == 0) {
+ bp->b_iocmd = BIO_READ;
+ vfs_busy_pages(bp, 0);
+ error = ncl_doio(vp, bp, cred, td, 0);
+ if (error) {
+ bp->b_ioflags |= BIO_ERROR;
+ brelse(bp);
+ return (error);
+ }
+ }
+ n = MIN(uio->uio_resid, NFS_MAXPATHLEN - bp->b_resid);
+ on = 0;
+ break;
+ case VDIR:
+ NFSINCRGLOBAL(nfsstatsv1.biocache_readdirs);
+ if (np->n_direofoffset
+ && uio->uio_offset >= np->n_direofoffset) {
+ return (0);
+ }
+ lbn = (uoff_t)uio->uio_offset / NFS_DIRBLKSIZ;
+ on = uio->uio_offset & (NFS_DIRBLKSIZ - 1);
+ bp = nfs_getcacheblk(vp, lbn, NFS_DIRBLKSIZ, td);
+ if (!bp) {
+ error = newnfs_sigintr(nmp, td);
+ return (error ? error : EINTR);
+ }
+ if ((bp->b_flags & B_CACHE) == 0) {
+ bp->b_iocmd = BIO_READ;
+ vfs_busy_pages(bp, 0);
+ error = ncl_doio(vp, bp, cred, td, 0);
+ if (error) {
+ brelse(bp);
+ }
+ while (error == NFSERR_BAD_COOKIE) {
+ ncl_invaldir(vp);
+ error = ncl_vinvalbuf(vp, 0, td, 1);
+
+ /*
+ * Yuck! The directory has been modified on the
+ * server. The only way to get the block is by
+ * reading from the beginning to get all the
+ * offset cookies.
+ *
+ * Leave the last bp intact unless there is an error.
+ * Loop back up to the while if the error is another
+ * NFSERR_BAD_COOKIE (double yuch!).
+ */
+ for (i = 0; i <= lbn && !error; i++) {
+ if (np->n_direofoffset
+ && (i * NFS_DIRBLKSIZ) >= np->n_direofoffset)
+ return (0);
+ bp = nfs_getcacheblk(vp, i, NFS_DIRBLKSIZ, td);
+ if (!bp) {
+ error = newnfs_sigintr(nmp, td);
+ return (error ? error : EINTR);
+ }
+ if ((bp->b_flags & B_CACHE) == 0) {
+ bp->b_iocmd = BIO_READ;
+ vfs_busy_pages(bp, 0);
+ error = ncl_doio(vp, bp, cred, td, 0);
+ /*
+ * no error + B_INVAL == directory EOF,
+ * use the block.
+ */
+ if (error == 0 && (bp->b_flags & B_INVAL))
+ break;
+ }
+ /*
+ * An error will throw away the block and the
+ * for loop will break out. If no error and this
+ * is not the block we want, we throw away the
+ * block and go for the next one via the for loop.
+ */
+ if (error || i < lbn)
+ brelse(bp);
+ }
+ }
+ /*
+ * The above while is repeated if we hit another cookie
+ * error. If we hit an error and it wasn't a cookie error,
+ * we give up.
+ */
+ if (error)
+ return (error);
+ }
+
+ /*
+ * If not eof and read aheads are enabled, start one.
+ * (You need the current block first, so that you have the
+ * directory offset cookie of the next block.)
+ */
+ if (nmp->nm_readahead > 0 &&
+ (bp->b_flags & B_INVAL) == 0 &&
+ (np->n_direofoffset == 0 ||
+ (lbn + 1) * NFS_DIRBLKSIZ < np->n_direofoffset) &&
+ incore(&vp->v_bufobj, lbn + 1) == NULL) {
+ rabp = nfs_getcacheblk(vp, lbn + 1, NFS_DIRBLKSIZ, td);
+ if (rabp) {
+ if ((rabp->b_flags & (B_CACHE|B_DELWRI)) == 0) {
+ rabp->b_flags |= B_ASYNC;
+ rabp->b_iocmd = BIO_READ;
+ vfs_busy_pages(rabp, 0);
+ if (ncl_asyncio(nmp, rabp, cred, td)) {
+ rabp->b_flags |= B_INVAL;
+ rabp->b_ioflags |= BIO_ERROR;
+ vfs_unbusy_pages(rabp);
+ brelse(rabp);
+ }
+ } else {
+ brelse(rabp);
+ }
+ }
+ }
+ /*
+ * Unlike VREG files, whos buffer size ( bp->b_bcount ) is
+ * chopped for the EOF condition, we cannot tell how large
+ * NFS directories are going to be until we hit EOF. So
+ * an NFS directory buffer is *not* chopped to its EOF. Now,
+ * it just so happens that b_resid will effectively chop it
+ * to EOF. *BUT* this information is lost if the buffer goes
+ * away and is reconstituted into a B_CACHE state ( due to
+ * being VMIO ) later. So we keep track of the directory eof
+ * in np->n_direofoffset and chop it off as an extra step
+ * right here.
+ */
+ n = lmin(uio->uio_resid, NFS_DIRBLKSIZ - bp->b_resid - on);
+ if (np->n_direofoffset && n > np->n_direofoffset - uio->uio_offset)
+ n = np->n_direofoffset - uio->uio_offset;
+ break;
+ default:
+ printf(" ncl_bioread: type %x unexpected\n", vp->v_type);
+ bp = NULL;
+ break;
+ }
+
+ if (n > 0) {
+ error = vn_io_fault_uiomove(bp->b_data + on, (int)n, uio);
+ }
+ if (vp->v_type == VLNK)
+ n = 0;
+ if (bp != NULL)
+ brelse(bp);
+ } while (error == 0 && uio->uio_resid > 0 && n > 0);
+ return (error);
+}
+
+/*
+ * The NFS write path cannot handle iovecs with len > 1. So we need to
+ * break up iovecs accordingly (restricting them to wsize).
+ * For the SYNC case, we can do this with 1 copy (user buffer -> mbuf).
+ * For the ASYNC case, 2 copies are needed. The first a copy from the
+ * user buffer to a staging buffer and then a second copy from the staging
+ * buffer to mbufs. This can be optimized by copying from the user buffer
+ * directly into mbufs and passing the chain down, but that requires a
+ * fair amount of re-working of the relevant codepaths (and can be done
+ * later).
+ */
+static int
+nfs_directio_write(vp, uiop, cred, ioflag)
+ struct vnode *vp;
+ struct uio *uiop;
+ struct ucred *cred;
+ int ioflag;
+{
+ int error;
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ struct thread *td = uiop->uio_td;
+ int size;
+ int wsize;
+
+ mtx_lock(&nmp->nm_mtx);
+ wsize = nmp->nm_wsize;
+ mtx_unlock(&nmp->nm_mtx);
+ if (ioflag & IO_SYNC) {
+ int iomode, must_commit;
+ struct uio uio;
+ struct iovec iov;
+do_sync:
+ while (uiop->uio_resid > 0) {
+ size = MIN(uiop->uio_resid, wsize);
+ size = MIN(uiop->uio_iov->iov_len, size);
+ iov.iov_base = uiop->uio_iov->iov_base;
+ iov.iov_len = size;
+ uio.uio_iov = &iov;
+ uio.uio_iovcnt = 1;
+ uio.uio_offset = uiop->uio_offset;
+ uio.uio_resid = size;
+ uio.uio_segflg = UIO_USERSPACE;
+ uio.uio_rw = UIO_WRITE;
+ uio.uio_td = td;
+ iomode = NFSWRITE_FILESYNC;
+ error = ncl_writerpc(vp, &uio, cred, &iomode,
+ &must_commit, 0);
+ KASSERT((must_commit == 0),
+ ("ncl_directio_write: Did not commit write"));
+ if (error)
+ return (error);
+ uiop->uio_offset += size;
+ uiop->uio_resid -= size;
+ if (uiop->uio_iov->iov_len <= size) {
+ uiop->uio_iovcnt--;
+ uiop->uio_iov++;
+ } else {
+ uiop->uio_iov->iov_base =
+ (char *)uiop->uio_iov->iov_base + size;
+ uiop->uio_iov->iov_len -= size;
+ }
+ }
+ } else {
+ struct uio *t_uio;
+ struct iovec *t_iov;
+ struct buf *bp;
+
+ /*
+ * Break up the write into blocksize chunks and hand these
+ * over to nfsiod's for write back.
+ * Unfortunately, this incurs a copy of the data. Since
+ * the user could modify the buffer before the write is
+ * initiated.
+ *
+ * The obvious optimization here is that one of the 2 copies
+ * in the async write path can be eliminated by copying the
+ * data here directly into mbufs and passing the mbuf chain
+ * down. But that will require a fair amount of re-working
+ * of the code and can be done if there's enough interest
+ * in NFS directio access.
+ */
+ while (uiop->uio_resid > 0) {
+ size = MIN(uiop->uio_resid, wsize);
+ size = MIN(uiop->uio_iov->iov_len, size);
+ bp = getpbuf(&ncl_pbuf_freecnt);
+ t_uio = malloc(sizeof(struct uio), M_NFSDIRECTIO, M_WAITOK);
+ t_iov = malloc(sizeof(struct iovec), M_NFSDIRECTIO, M_WAITOK);
+ t_iov->iov_base = malloc(size, M_NFSDIRECTIO, M_WAITOK);
+ t_iov->iov_len = size;
+ t_uio->uio_iov = t_iov;
+ t_uio->uio_iovcnt = 1;
+ t_uio->uio_offset = uiop->uio_offset;
+ t_uio->uio_resid = size;
+ t_uio->uio_segflg = UIO_SYSSPACE;
+ t_uio->uio_rw = UIO_WRITE;
+ t_uio->uio_td = td;
+ KASSERT(uiop->uio_segflg == UIO_USERSPACE ||
+ uiop->uio_segflg == UIO_SYSSPACE,
+ ("nfs_directio_write: Bad uio_segflg"));
+ if (uiop->uio_segflg == UIO_USERSPACE) {
+ error = copyin(uiop->uio_iov->iov_base,
+ t_iov->iov_base, size);
+ if (error != 0)
+ goto err_free;
+ } else
+ /*
+ * UIO_SYSSPACE may never happen, but handle
+ * it just in case it does.
+ */
+ bcopy(uiop->uio_iov->iov_base, t_iov->iov_base,
+ size);
+ bp->b_flags |= B_DIRECT;
+ bp->b_iocmd = BIO_WRITE;
+ if (cred != NOCRED) {
+ crhold(cred);
+ bp->b_wcred = cred;
+ } else
+ bp->b_wcred = NOCRED;
+ bp->b_caller1 = (void *)t_uio;
+ bp->b_vp = vp;
+ error = ncl_asyncio(nmp, bp, NOCRED, td);
+err_free:
+ if (error) {
+ free(t_iov->iov_base, M_NFSDIRECTIO);
+ free(t_iov, M_NFSDIRECTIO);
+ free(t_uio, M_NFSDIRECTIO);
+ bp->b_vp = NULL;
+ relpbuf(bp, &ncl_pbuf_freecnt);
+ if (error == EINTR)
+ return (error);
+ goto do_sync;
+ }
+ uiop->uio_offset += size;
+ uiop->uio_resid -= size;
+ if (uiop->uio_iov->iov_len <= size) {
+ uiop->uio_iovcnt--;
+ uiop->uio_iov++;
+ } else {
+ uiop->uio_iov->iov_base =
+ (char *)uiop->uio_iov->iov_base + size;
+ uiop->uio_iov->iov_len -= size;
+ }
+ }
+ }
+ return (0);
+}
+
+/*
+ * Vnode op for write using bio
+ */
+int
+ncl_write(struct vop_write_args *ap)
+{
+ int biosize;
+ struct uio *uio = ap->a_uio;
+ struct thread *td = uio->uio_td;
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct ucred *cred = ap->a_cred;
+ int ioflag = ap->a_ioflag;
+ struct buf *bp;
+ struct vattr vattr;
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ daddr_t lbn;
+ int bcount, noncontig_write, obcount;
+ int bp_cached, n, on, error = 0, error1, wouldcommit;
+ size_t orig_resid, local_resid;
+ off_t orig_size, tmp_off;
+
+ KASSERT(uio->uio_rw == UIO_WRITE, ("ncl_write mode"));
+ KASSERT(uio->uio_segflg != UIO_USERSPACE || uio->uio_td == curthread,
+ ("ncl_write proc"));
+ if (vp->v_type != VREG)
+ return (EIO);
+ NFSLOCKNODE(np);
+ if (np->n_flag & NWRITEERR) {
+ np->n_flag &= ~NWRITEERR;
+ NFSUNLOCKNODE(np);
+ return (np->n_error);
+ } else
+ NFSUNLOCKNODE(np);
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_flag & NFSMNT_NFSV3) != 0 &&
+ (nmp->nm_state & NFSSTA_GOTFSINFO) == 0) {
+ mtx_unlock(&nmp->nm_mtx);
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+ mtx_lock(&nmp->nm_mtx);
+ }
+ if (nmp->nm_wsize == 0)
+ (void) newnfs_iosize(nmp);
+ mtx_unlock(&nmp->nm_mtx);
+
+ /*
+ * Synchronously flush pending buffers if we are in synchronous
+ * mode or if we are appending.
+ */
+ if (ioflag & (IO_APPEND | IO_SYNC)) {
+ NFSLOCKNODE(np);
+ if (np->n_flag & NMODIFIED) {
+ NFSUNLOCKNODE(np);
+#ifdef notyet /* Needs matching nonblock semantics elsewhere, too. */
+ /*
+ * Require non-blocking, synchronous writes to
+ * dirty files to inform the program it needs
+ * to fsync(2) explicitly.
+ */
+ if (ioflag & IO_NDELAY)
+ return (EAGAIN);
+#endif
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ error = ncl_vinvalbuf(vp, V_SAVE | ((ioflag &
+ IO_VMIO) != 0 ? V_VMIO : 0), td, 1);
+ if (error != 0)
+ return (error);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+
+ orig_resid = uio->uio_resid;
+ NFSLOCKNODE(np);
+ orig_size = np->n_size;
+ NFSUNLOCKNODE(np);
+
+ /*
+ * If IO_APPEND then load uio_offset. We restart here if we cannot
+ * get the append lock.
+ */
+ if (ioflag & IO_APPEND) {
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ error = VOP_GETATTR(vp, &vattr, cred);
+ if (error)
+ return (error);
+ NFSLOCKNODE(np);
+ uio->uio_offset = np->n_size;
+ NFSUNLOCKNODE(np);
+ }
+
+ if (uio->uio_offset < 0)
+ return (EINVAL);
+ tmp_off = uio->uio_offset + uio->uio_resid;
+ if (tmp_off > nmp->nm_maxfilesize || tmp_off < uio->uio_offset)
+ return (EFBIG);
+ if (uio->uio_resid == 0)
+ return (0);
+
+ if (newnfs_directio_enable && (ioflag & IO_DIRECT) && vp->v_type == VREG)
+ return nfs_directio_write(vp, uio, cred, ioflag);
+
+ /*
+ * Maybe this should be above the vnode op call, but so long as
+ * file servers have no limits, i don't think it matters
+ */
+ if (vn_rlimit_fsize(vp, uio, td))
+ return (EFBIG);
+
+ biosize = vp->v_bufobj.bo_bsize;
+ /*
+ * Find all of this file's B_NEEDCOMMIT buffers. If our writes
+ * would exceed the local maximum per-file write commit size when
+ * combined with those, we must decide whether to flush,
+ * go synchronous, or return error. We don't bother checking
+ * IO_UNIT -- we just make all writes atomic anyway, as there's
+ * no point optimizing for something that really won't ever happen.
+ */
+ wouldcommit = 0;
+ if (!(ioflag & IO_SYNC)) {
+ int nflag;
+
+ NFSLOCKNODE(np);
+ nflag = np->n_flag;
+ NFSUNLOCKNODE(np);
+ if (nflag & NMODIFIED) {
+ BO_LOCK(&vp->v_bufobj);
+ if (vp->v_bufobj.bo_dirty.bv_cnt != 0) {
+ TAILQ_FOREACH(bp, &vp->v_bufobj.bo_dirty.bv_hd,
+ b_bobufs) {
+ if (bp->b_flags & B_NEEDCOMMIT)
+ wouldcommit += bp->b_bcount;
+ }
+ }
+ BO_UNLOCK(&vp->v_bufobj);
+ }
+ }
+
+ do {
+ if (!(ioflag & IO_SYNC)) {
+ wouldcommit += biosize;
+ if (wouldcommit > nmp->nm_wcommitsize) {
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ error = ncl_vinvalbuf(vp, V_SAVE | ((ioflag &
+ IO_VMIO) != 0 ? V_VMIO : 0), td, 1);
+ if (error != 0)
+ return (error);
+ wouldcommit = biosize;
+ }
+ }
+
+ NFSINCRGLOBAL(nfsstatsv1.biocache_writes);
+ lbn = uio->uio_offset / biosize;
+ on = uio->uio_offset - (lbn * biosize);
+ n = MIN((unsigned)(biosize - on), uio->uio_resid);
+again:
+ /*
+ * Handle direct append and file extension cases, calculate
+ * unaligned buffer size.
+ */
+ NFSLOCKNODE(np);
+ if ((np->n_flag & NHASBEENLOCKED) == 0 &&
+ (nmp->nm_flag & NFSMNT_NONCONTIGWR) != 0)
+ noncontig_write = 1;
+ else
+ noncontig_write = 0;
+ if ((uio->uio_offset == np->n_size ||
+ (noncontig_write != 0 &&
+ lbn == (np->n_size / biosize) &&
+ uio->uio_offset + n > np->n_size)) && n) {
+ NFSUNLOCKNODE(np);
+ /*
+ * Get the buffer (in its pre-append state to maintain
+ * B_CACHE if it was previously set). Resize the
+ * nfsnode after we have locked the buffer to prevent
+ * readers from reading garbage.
+ */
+ obcount = np->n_size - (lbn * biosize);
+ bp = nfs_getcacheblk(vp, lbn, obcount, td);
+
+ if (bp != NULL) {
+ long save;
+
+ NFSLOCKNODE(np);
+ np->n_size = uio->uio_offset + n;
+ np->n_flag |= NMODIFIED;
+ vnode_pager_setsize(vp, np->n_size);
+ NFSUNLOCKNODE(np);
+
+ save = bp->b_flags & B_CACHE;
+ bcount = on + n;
+ allocbuf(bp, bcount);
+ bp->b_flags |= save;
+ if (noncontig_write != 0 && on > obcount)
+ vfs_bio_bzero_buf(bp, obcount, on -
+ obcount);
+ }
+ } else {
+ /*
+ * Obtain the locked cache block first, and then
+ * adjust the file's size as appropriate.
+ */
+ bcount = on + n;
+ if ((off_t)lbn * biosize + bcount < np->n_size) {
+ if ((off_t)(lbn + 1) * biosize < np->n_size)
+ bcount = biosize;
+ else
+ bcount = np->n_size - (off_t)lbn * biosize;
+ }
+ NFSUNLOCKNODE(np);
+ bp = nfs_getcacheblk(vp, lbn, bcount, td);
+ NFSLOCKNODE(np);
+ if (uio->uio_offset + n > np->n_size) {
+ np->n_size = uio->uio_offset + n;
+ np->n_flag |= NMODIFIED;
+ vnode_pager_setsize(vp, np->n_size);
+ }
+ NFSUNLOCKNODE(np);
+ }
+
+ if (!bp) {
+ error = newnfs_sigintr(nmp, td);
+ if (!error)
+ error = EINTR;
+ break;
+ }
+
+ /*
+ * Issue a READ if B_CACHE is not set. In special-append
+ * mode, B_CACHE is based on the buffer prior to the write
+ * op and is typically set, avoiding the read. If a read
+ * is required in special append mode, the server will
+ * probably send us a short-read since we extended the file
+ * on our end, resulting in b_resid == 0 and, thusly,
+ * B_CACHE getting set.
+ *
+ * We can also avoid issuing the read if the write covers
+ * the entire buffer. We have to make sure the buffer state
+ * is reasonable in this case since we will not be initiating
+ * I/O. See the comments in kern/vfs_bio.c's getblk() for
+ * more information.
+ *
+ * B_CACHE may also be set due to the buffer being cached
+ * normally.
+ */
+
+ bp_cached = 1;
+ if (on == 0 && n == bcount) {
+ if ((bp->b_flags & B_CACHE) == 0)
+ bp_cached = 0;
+ bp->b_flags |= B_CACHE;
+ bp->b_flags &= ~B_INVAL;
+ bp->b_ioflags &= ~BIO_ERROR;
+ }
+
+ if ((bp->b_flags & B_CACHE) == 0) {
+ bp->b_iocmd = BIO_READ;
+ vfs_busy_pages(bp, 0);
+ error = ncl_doio(vp, bp, cred, td, 0);
+ if (error) {
+ brelse(bp);
+ break;
+ }
+ }
+ if (bp->b_wcred == NOCRED)
+ bp->b_wcred = crhold(cred);
+ NFSLOCKNODE(np);
+ np->n_flag |= NMODIFIED;
+ NFSUNLOCKNODE(np);
+
+ /*
+ * If dirtyend exceeds file size, chop it down. This should
+ * not normally occur but there is an append race where it
+ * might occur XXX, so we log it.
+ *
+ * If the chopping creates a reverse-indexed or degenerate
+ * situation with dirtyoff/end, we 0 both of them.
+ */
+
+ if (bp->b_dirtyend > bcount) {
+ printf("NFS append race @%lx:%d\n",
+ (long)bp->b_blkno * DEV_BSIZE,
+ bp->b_dirtyend - bcount);
+ bp->b_dirtyend = bcount;
+ }
+
+ if (bp->b_dirtyoff >= bp->b_dirtyend)
+ bp->b_dirtyoff = bp->b_dirtyend = 0;
+
+ /*
+ * If the new write will leave a contiguous dirty
+ * area, just update the b_dirtyoff and b_dirtyend,
+ * otherwise force a write rpc of the old dirty area.
+ *
+ * If there has been a file lock applied to this file
+ * or vfs.nfs.old_noncontig_writing is set, do the following:
+ * While it is possible to merge discontiguous writes due to
+ * our having a B_CACHE buffer ( and thus valid read data
+ * for the hole), we don't because it could lead to
+ * significant cache coherency problems with multiple clients,
+ * especially if locking is implemented later on.
+ *
+ * If vfs.nfs.old_noncontig_writing is not set and there has
+ * not been file locking done on this file:
+ * Relax coherency a bit for the sake of performance and
+ * expand the current dirty region to contain the new
+ * write even if it means we mark some non-dirty data as
+ * dirty.
+ */
+
+ if (noncontig_write == 0 && bp->b_dirtyend > 0 &&
+ (on > bp->b_dirtyend || (on + n) < bp->b_dirtyoff)) {
+ if (bwrite(bp) == EINTR) {
+ error = EINTR;
+ break;
+ }
+ goto again;
+ }
+
+ local_resid = uio->uio_resid;
+ error = vn_io_fault_uiomove((char *)bp->b_data + on, n, uio);
+
+ if (error != 0 && !bp_cached) {
+ /*
+ * This block has no other content then what
+ * possibly was written by the faulty uiomove.
+ * Release it, forgetting the data pages, to
+ * prevent the leak of uninitialized data to
+ * usermode.
+ */
+ bp->b_ioflags |= BIO_ERROR;
+ brelse(bp);
+ uio->uio_offset -= local_resid - uio->uio_resid;
+ uio->uio_resid = local_resid;
+ break;
+ }
+
+ /*
+ * Since this block is being modified, it must be written
+ * again and not just committed. Since write clustering does
+ * not work for the stage 1 data write, only the stage 2
+ * commit rpc, we have to clear B_CLUSTEROK as well.
+ */
+ bp->b_flags &= ~(B_NEEDCOMMIT | B_CLUSTEROK);
+
+ /*
+ * Get the partial update on the progress made from
+ * uiomove, if an error occurred.
+ */
+ if (error != 0)
+ n = local_resid - uio->uio_resid;
+
+ /*
+ * Only update dirtyoff/dirtyend if not a degenerate
+ * condition.
+ */
+ if (n > 0) {
+ if (bp->b_dirtyend > 0) {
+ bp->b_dirtyoff = min(on, bp->b_dirtyoff);
+ bp->b_dirtyend = max((on + n), bp->b_dirtyend);
+ } else {
+ bp->b_dirtyoff = on;
+ bp->b_dirtyend = on + n;
+ }
+ vfs_bio_set_valid(bp, on, n);
+ }
+
+ /*
+ * If IO_SYNC do bwrite().
+ *
+ * IO_INVAL appears to be unused. The idea appears to be
+ * to turn off caching in this case. Very odd. XXX
+ */
+ if ((ioflag & IO_SYNC)) {
+ if (ioflag & IO_INVAL)
+ bp->b_flags |= B_NOCACHE;
+ error1 = bwrite(bp);
+ if (error1 != 0) {
+ if (error == 0)
+ error = error1;
+ break;
+ }
+ } else if ((n + on) == biosize || (ioflag & IO_ASYNC) != 0) {
+ bp->b_flags |= B_ASYNC;
+ (void) ncl_writebp(bp, 0, NULL);
+ } else {
+ bdwrite(bp);
+ }
+
+ if (error != 0)
+ break;
+ } while (uio->uio_resid > 0 && n > 0);
+
+ if (error != 0) {
+ if (ioflag & IO_UNIT) {
+ VATTR_NULL(&vattr);
+ vattr.va_size = orig_size;
+ /* IO_SYNC is handled implicitely */
+ (void)VOP_SETATTR(vp, &vattr, cred);
+ uio->uio_offset -= orig_resid - uio->uio_resid;
+ uio->uio_resid = orig_resid;
+ }
+ }
+
+ return (error);
+}
+
+/*
+ * Get an nfs cache block.
+ *
+ * Allocate a new one if the block isn't currently in the cache
+ * and return the block marked busy. If the calling process is
+ * interrupted by a signal for an interruptible mount point, return
+ * NULL.
+ *
+ * The caller must carefully deal with the possible B_INVAL state of
+ * the buffer. ncl_doio() clears B_INVAL (and ncl_asyncio() clears it
+ * indirectly), so synchronous reads can be issued without worrying about
+ * the B_INVAL state. We have to be a little more careful when dealing
+ * with writes (see comments in nfs_write()) when extending a file past
+ * its EOF.
+ */
+static struct buf *
+nfs_getcacheblk(struct vnode *vp, daddr_t bn, int size, struct thread *td)
+{
+ struct buf *bp;
+ struct mount *mp;
+ struct nfsmount *nmp;
+
+ mp = vp->v_mount;
+ nmp = VFSTONFS(mp);
+
+ if (nmp->nm_flag & NFSMNT_INT) {
+ sigset_t oldset;
+
+ newnfs_set_sigmask(td, &oldset);
+ bp = getblk(vp, bn, size, PCATCH, 0, 0);
+ newnfs_restore_sigmask(td, &oldset);
+ while (bp == NULL) {
+ if (newnfs_sigintr(nmp, td))
+ return (NULL);
+ bp = getblk(vp, bn, size, 0, 2 * hz, 0);
+ }
+ } else {
+ bp = getblk(vp, bn, size, 0, 0, 0);
+ }
+
+ if (vp->v_type == VREG)
+ bp->b_blkno = bn * (vp->v_bufobj.bo_bsize / DEV_BSIZE);
+ return (bp);
+}
+
+/*
+ * Flush and invalidate all dirty buffers. If another process is already
+ * doing the flush, just wait for completion.
+ */
+int
+ncl_vinvalbuf(struct vnode *vp, int flags, struct thread *td, int intrflg)
+{
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ int error = 0, slpflag, slptimeo;
+ bool old_lock;
+
+ ASSERT_VOP_LOCKED(vp, "ncl_vinvalbuf");
+
+ if ((nmp->nm_flag & NFSMNT_INT) == 0)
+ intrflg = 0;
+ if (NFSCL_FORCEDISM(nmp->nm_mountp))
+ intrflg = 1;
+ if (intrflg) {
+ slpflag = PCATCH;
+ slptimeo = 2 * hz;
+ } else {
+ slpflag = 0;
+ slptimeo = 0;
+ }
+
+ old_lock = ncl_excl_start(vp);
+ if (old_lock)
+ flags |= V_ALLOWCLEAN;
+
+ /*
+ * Now, flush as required.
+ */
+ if ((flags & (V_SAVE | V_VMIO)) == V_SAVE &&
+ vp->v_bufobj.bo_object != NULL) {
+ VM_OBJECT_WLOCK(vp->v_bufobj.bo_object);
+ vm_object_page_clean(vp->v_bufobj.bo_object, 0, 0, OBJPC_SYNC);
+ VM_OBJECT_WUNLOCK(vp->v_bufobj.bo_object);
+ /*
+ * If the page clean was interrupted, fail the invalidation.
+ * Not doing so, we run the risk of losing dirty pages in the
+ * vinvalbuf() call below.
+ */
+ if (intrflg && (error = newnfs_sigintr(nmp, td)))
+ goto out;
+ }
+
+ error = vinvalbuf(vp, flags, slpflag, 0);
+ while (error) {
+ if (intrflg && (error = newnfs_sigintr(nmp, td)))
+ goto out;
+ error = vinvalbuf(vp, flags, 0, slptimeo);
+ }
+ if (NFSHASPNFS(nmp)) {
+ nfscl_layoutcommit(vp, td);
+ /*
+ * Invalidate the attribute cache, since writes to a DS
+ * won't update the size attribute.
+ */
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ } else
+ NFSLOCKNODE(np);
+ if (np->n_directio_asyncwr == 0)
+ np->n_flag &= ~NMODIFIED;
+ NFSUNLOCKNODE(np);
+out:
+ ncl_excl_finish(vp, old_lock);
+ return error;
+}
+
+/*
+ * Initiate asynchronous I/O. Return an error if no nfsiods are available.
+ * This is mainly to avoid queueing async I/O requests when the nfsiods
+ * are all hung on a dead server.
+ *
+ * Note: ncl_asyncio() does not clear (BIO_ERROR|B_INVAL) but when the bp
+ * is eventually dequeued by the async daemon, ncl_doio() *will*.
+ */
+int
+ncl_asyncio(struct nfsmount *nmp, struct buf *bp, struct ucred *cred, struct thread *td)
+{
+ int iod;
+ int gotiod;
+ int slpflag = 0;
+ int slptimeo = 0;
+ int error, error2;
+
+ /*
+ * Commits are usually short and sweet so lets save some cpu and
+ * leave the async daemons for more important rpc's (such as reads
+ * and writes).
+ *
+ * Readdirplus RPCs do vget()s to acquire the vnodes for entries
+ * in the directory in order to update attributes. This can deadlock
+ * with another thread that is waiting for async I/O to be done by
+ * an nfsiod thread while holding a lock on one of these vnodes.
+ * To avoid this deadlock, don't allow the async nfsiod threads to
+ * perform Readdirplus RPCs.
+ */
+ NFSLOCKIOD();
+ if ((bp->b_iocmd == BIO_WRITE && (bp->b_flags & B_NEEDCOMMIT) &&
+ (nmp->nm_bufqiods > ncl_numasync / 2)) ||
+ (bp->b_vp->v_type == VDIR && (nmp->nm_flag & NFSMNT_RDIRPLUS))) {
+ NFSUNLOCKIOD();
+ return(EIO);
+ }
+again:
+ if (nmp->nm_flag & NFSMNT_INT)
+ slpflag = PCATCH;
+ gotiod = FALSE;
+
+ /*
+ * Find a free iod to process this request.
+ */
+ for (iod = 0; iod < ncl_numasync; iod++)
+ if (ncl_iodwant[iod] == NFSIOD_AVAILABLE) {
+ gotiod = TRUE;
+ break;
+ }
+
+ /*
+ * Try to create one if none are free.
+ */
+ if (!gotiod)
+ ncl_nfsiodnew();
+ else {
+ /*
+ * Found one, so wake it up and tell it which
+ * mount to process.
+ */
+ NFS_DPF(ASYNCIO, ("ncl_asyncio: waking iod %d for mount %p\n",
+ iod, nmp));
+ ncl_iodwant[iod] = NFSIOD_NOT_AVAILABLE;
+ ncl_iodmount[iod] = nmp;
+ nmp->nm_bufqiods++;
+ wakeup(&ncl_iodwant[iod]);
+ }
+
+ /*
+ * If none are free, we may already have an iod working on this mount
+ * point. If so, it will process our request.
+ */
+ if (!gotiod) {
+ if (nmp->nm_bufqiods > 0) {
+ NFS_DPF(ASYNCIO,
+ ("ncl_asyncio: %d iods are already processing mount %p\n",
+ nmp->nm_bufqiods, nmp));
+ gotiod = TRUE;
+ }
+ }
+
+ /*
+ * If we have an iod which can process the request, then queue
+ * the buffer.
+ */
+ if (gotiod) {
+ /*
+ * Ensure that the queue never grows too large. We still want
+ * to asynchronize so we block rather then return EIO.
+ */
+ while (nmp->nm_bufqlen >= 2*ncl_numasync) {
+ NFS_DPF(ASYNCIO,
+ ("ncl_asyncio: waiting for mount %p queue to drain\n", nmp));
+ nmp->nm_bufqwant = TRUE;
+ error = newnfs_msleep(td, &nmp->nm_bufq,
+ &ncl_iod_mutex, slpflag | PRIBIO, "nfsaio",
+ slptimeo);
+ if (error) {
+ error2 = newnfs_sigintr(nmp, td);
+ if (error2) {
+ NFSUNLOCKIOD();
+ return (error2);
+ }
+ if (slpflag == PCATCH) {
+ slpflag = 0;
+ slptimeo = 2 * hz;
+ }
+ }
+ /*
+ * We might have lost our iod while sleeping,
+ * so check and loop if necessary.
+ */
+ goto again;
+ }
+
+ /* We might have lost our nfsiod */
+ if (nmp->nm_bufqiods == 0) {
+ NFS_DPF(ASYNCIO,
+ ("ncl_asyncio: no iods after mount %p queue was drained, looping\n", nmp));
+ goto again;
+ }
+
+ if (bp->b_iocmd == BIO_READ) {
+ if (bp->b_rcred == NOCRED && cred != NOCRED)
+ bp->b_rcred = crhold(cred);
+ } else {
+ if (bp->b_wcred == NOCRED && cred != NOCRED)
+ bp->b_wcred = crhold(cred);
+ }
+
+ if (bp->b_flags & B_REMFREE)
+ bremfreef(bp);
+ BUF_KERNPROC(bp);
+ TAILQ_INSERT_TAIL(&nmp->nm_bufq, bp, b_freelist);
+ nmp->nm_bufqlen++;
+ if ((bp->b_flags & B_DIRECT) && bp->b_iocmd == BIO_WRITE) {
+ NFSLOCKNODE(VTONFS(bp->b_vp));
+ VTONFS(bp->b_vp)->n_flag |= NMODIFIED;
+ VTONFS(bp->b_vp)->n_directio_asyncwr++;
+ NFSUNLOCKNODE(VTONFS(bp->b_vp));
+ }
+ NFSUNLOCKIOD();
+ return (0);
+ }
+
+ NFSUNLOCKIOD();
+
+ /*
+ * All the iods are busy on other mounts, so return EIO to
+ * force the caller to process the i/o synchronously.
+ */
+ NFS_DPF(ASYNCIO, ("ncl_asyncio: no iods available, i/o is synchronous\n"));
+ return (EIO);
+}
+
+void
+ncl_doio_directwrite(struct buf *bp)
+{
+ int iomode, must_commit;
+ struct uio *uiop = (struct uio *)bp->b_caller1;
+ char *iov_base = uiop->uio_iov->iov_base;
+
+ iomode = NFSWRITE_FILESYNC;
+ uiop->uio_td = NULL; /* NULL since we're in nfsiod */
+ ncl_writerpc(bp->b_vp, uiop, bp->b_wcred, &iomode, &must_commit, 0);
+ KASSERT((must_commit == 0), ("ncl_doio_directwrite: Did not commit write"));
+ free(iov_base, M_NFSDIRECTIO);
+ free(uiop->uio_iov, M_NFSDIRECTIO);
+ free(uiop, M_NFSDIRECTIO);
+ if ((bp->b_flags & B_DIRECT) && bp->b_iocmd == BIO_WRITE) {
+ struct nfsnode *np = VTONFS(bp->b_vp);
+ NFSLOCKNODE(np);
+ if (NFSHASPNFS(VFSTONFS(vnode_mount(bp->b_vp)))) {
+ /*
+ * Invalidate the attribute cache, since writes to a DS
+ * won't update the size attribute.
+ */
+ np->n_attrstamp = 0;
+ }
+ np->n_directio_asyncwr--;
+ if (np->n_directio_asyncwr == 0) {
+ np->n_flag &= ~NMODIFIED;
+ if ((np->n_flag & NFSYNCWAIT)) {
+ np->n_flag &= ~NFSYNCWAIT;
+ wakeup((caddr_t)&np->n_directio_asyncwr);
+ }
+ }
+ NFSUNLOCKNODE(np);
+ }
+ bp->b_vp = NULL;
+ relpbuf(bp, &ncl_pbuf_freecnt);
+}
+
+/*
+ * Do an I/O operation to/from a cache block. This may be called
+ * synchronously or from an nfsiod.
+ */
+int
+ncl_doio(struct vnode *vp, struct buf *bp, struct ucred *cr, struct thread *td,
+ int called_from_strategy)
+{
+ struct uio *uiop;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+ int error = 0, iomode, must_commit = 0;
+ struct uio uio;
+ struct iovec io;
+ struct proc *p = td ? td->td_proc : NULL;
+ uint8_t iocmd;
+
+ np = VTONFS(vp);
+ nmp = VFSTONFS(vp->v_mount);
+ uiop = &uio;
+ uiop->uio_iov = &io;
+ uiop->uio_iovcnt = 1;
+ uiop->uio_segflg = UIO_SYSSPACE;
+ uiop->uio_td = td;
+
+ /*
+ * clear BIO_ERROR and B_INVAL state prior to initiating the I/O. We
+ * do this here so we do not have to do it in all the code that
+ * calls us.
+ */
+ bp->b_flags &= ~B_INVAL;
+ bp->b_ioflags &= ~BIO_ERROR;
+
+ KASSERT(!(bp->b_flags & B_DONE), ("ncl_doio: bp %p already marked done", bp));
+ iocmd = bp->b_iocmd;
+ if (iocmd == BIO_READ) {
+ io.iov_len = uiop->uio_resid = bp->b_bcount;
+ io.iov_base = bp->b_data;
+ uiop->uio_rw = UIO_READ;
+
+ switch (vp->v_type) {
+ case VREG:
+ uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE;
+ NFSINCRGLOBAL(nfsstatsv1.read_bios);
+ error = ncl_readrpc(vp, uiop, cr);
+
+ if (!error) {
+ if (uiop->uio_resid) {
+ /*
+ * If we had a short read with no error, we must have
+ * hit a file hole. We should zero-fill the remainder.
+ * This can also occur if the server hits the file EOF.
+ *
+ * Holes used to be able to occur due to pending
+ * writes, but that is not possible any longer.
+ */
+ int nread = bp->b_bcount - uiop->uio_resid;
+ ssize_t left = uiop->uio_resid;
+
+ if (left > 0)
+ bzero((char *)bp->b_data + nread, left);
+ uiop->uio_resid = 0;
+ }
+ }
+ /* ASSERT_VOP_LOCKED(vp, "ncl_doio"); */
+ if (p && vp->v_writecount <= -1) {
+ NFSLOCKNODE(np);
+ if (NFS_TIMESPEC_COMPARE(&np->n_mtime, &np->n_vattr.na_mtime)) {
+ NFSUNLOCKNODE(np);
+ PROC_LOCK(p);
+ killproc(p, "text file modification");
+ PROC_UNLOCK(p);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+ break;
+ case VLNK:
+ uiop->uio_offset = (off_t)0;
+ NFSINCRGLOBAL(nfsstatsv1.readlink_bios);
+ error = ncl_readlinkrpc(vp, uiop, cr);
+ break;
+ case VDIR:
+ NFSINCRGLOBAL(nfsstatsv1.readdir_bios);
+ uiop->uio_offset = ((u_quad_t)bp->b_lblkno) * NFS_DIRBLKSIZ;
+ if ((nmp->nm_flag & NFSMNT_RDIRPLUS) != 0) {
+ error = ncl_readdirplusrpc(vp, uiop, cr, td);
+ if (error == NFSERR_NOTSUPP)
+ nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
+ }
+ if ((nmp->nm_flag & NFSMNT_RDIRPLUS) == 0)
+ error = ncl_readdirrpc(vp, uiop, cr, td);
+ /*
+ * end-of-directory sets B_INVAL but does not generate an
+ * error.
+ */
+ if (error == 0 && uiop->uio_resid == bp->b_bcount)
+ bp->b_flags |= B_INVAL;
+ break;
+ default:
+ printf("ncl_doio: type %x unexpected\n", vp->v_type);
+ break;
+ }
+ if (error) {
+ bp->b_ioflags |= BIO_ERROR;
+ bp->b_error = error;
+ }
+ } else {
+ /*
+ * If we only need to commit, try to commit
+ */
+ if (bp->b_flags & B_NEEDCOMMIT) {
+ int retv;
+ off_t off;
+
+ off = ((u_quad_t)bp->b_blkno) * DEV_BSIZE + bp->b_dirtyoff;
+ retv = ncl_commit(vp, off, bp->b_dirtyend-bp->b_dirtyoff,
+ bp->b_wcred, td);
+ if (retv == 0) {
+ bp->b_dirtyoff = bp->b_dirtyend = 0;
+ bp->b_flags &= ~(B_NEEDCOMMIT | B_CLUSTEROK);
+ bp->b_resid = 0;
+ bufdone(bp);
+ return (0);
+ }
+ if (retv == NFSERR_STALEWRITEVERF) {
+ ncl_clearcommit(vp->v_mount);
+ }
+ }
+
+ /*
+ * Setup for actual write
+ */
+ NFSLOCKNODE(np);
+ if ((off_t)bp->b_blkno * DEV_BSIZE + bp->b_dirtyend > np->n_size)
+ bp->b_dirtyend = np->n_size - (off_t)bp->b_blkno * DEV_BSIZE;
+ NFSUNLOCKNODE(np);
+
+ if (bp->b_dirtyend > bp->b_dirtyoff) {
+ io.iov_len = uiop->uio_resid = bp->b_dirtyend
+ - bp->b_dirtyoff;
+ uiop->uio_offset = (off_t)bp->b_blkno * DEV_BSIZE
+ + bp->b_dirtyoff;
+ io.iov_base = (char *)bp->b_data + bp->b_dirtyoff;
+ uiop->uio_rw = UIO_WRITE;
+ NFSINCRGLOBAL(nfsstatsv1.write_bios);
+
+ if ((bp->b_flags & (B_ASYNC | B_NEEDCOMMIT | B_NOCACHE | B_CLUSTER)) == B_ASYNC)
+ iomode = NFSWRITE_UNSTABLE;
+ else
+ iomode = NFSWRITE_FILESYNC;
+
+ error = ncl_writerpc(vp, uiop, cr, &iomode, &must_commit,
+ called_from_strategy);
+
+ /*
+ * When setting B_NEEDCOMMIT also set B_CLUSTEROK to try
+ * to cluster the buffers needing commit. This will allow
+ * the system to submit a single commit rpc for the whole
+ * cluster. We can do this even if the buffer is not 100%
+ * dirty (relative to the NFS blocksize), so we optimize the
+ * append-to-file-case.
+ *
+ * (when clearing B_NEEDCOMMIT, B_CLUSTEROK must also be
+ * cleared because write clustering only works for commit
+ * rpc's, not for the data portion of the write).
+ */
+
+ if (!error && iomode == NFSWRITE_UNSTABLE) {
+ bp->b_flags |= B_NEEDCOMMIT;
+ if (bp->b_dirtyoff == 0
+ && bp->b_dirtyend == bp->b_bcount)
+ bp->b_flags |= B_CLUSTEROK;
+ } else {
+ bp->b_flags &= ~(B_NEEDCOMMIT | B_CLUSTEROK);
+ }
+
+ /*
+ * For an interrupted write, the buffer is still valid
+ * and the write hasn't been pushed to the server yet,
+ * so we can't set BIO_ERROR and report the interruption
+ * by setting B_EINTR. For the B_ASYNC case, B_EINTR
+ * is not relevant, so the rpc attempt is essentially
+ * a noop. For the case of a V3 write rpc not being
+ * committed to stable storage, the block is still
+ * dirty and requires either a commit rpc or another
+ * write rpc with iomode == NFSV3WRITE_FILESYNC before
+ * the block is reused. This is indicated by setting
+ * the B_DELWRI and B_NEEDCOMMIT flags.
+ *
+ * EIO is returned by ncl_writerpc() to indicate a recoverable
+ * write error and is handled as above, except that
+ * B_EINTR isn't set. One cause of this is a stale stateid
+ * error for the RPC that indicates recovery is required,
+ * when called with called_from_strategy != 0.
+ *
+ * If the buffer is marked B_PAGING, it does not reside on
+ * the vp's paging queues so we cannot call bdirty(). The
+ * bp in this case is not an NFS cache block so we should
+ * be safe. XXX
+ *
+ * The logic below breaks up errors into recoverable and
+ * unrecoverable. For the former, we clear B_INVAL|B_NOCACHE
+ * and keep the buffer around for potential write retries.
+ * For the latter (eg ESTALE), we toss the buffer away (B_INVAL)
+ * and save the error in the nfsnode. This is less than ideal
+ * but necessary. Keeping such buffers around could potentially
+ * cause buffer exhaustion eventually (they can never be written
+ * out, so will get constantly be re-dirtied). It also causes
+ * all sorts of vfs panics. For non-recoverable write errors,
+ * also invalidate the attrcache, so we'll be forced to go over
+ * the wire for this object, returning an error to user on next
+ * call (most of the time).
+ */
+ if (error == EINTR || error == EIO || error == ETIMEDOUT
+ || (!error && (bp->b_flags & B_NEEDCOMMIT))) {
+ bp->b_flags &= ~(B_INVAL|B_NOCACHE);
+ if ((bp->b_flags & B_PAGING) == 0) {
+ bdirty(bp);
+ bp->b_flags &= ~B_DONE;
+ }
+ if ((error == EINTR || error == ETIMEDOUT) &&
+ (bp->b_flags & B_ASYNC) == 0)
+ bp->b_flags |= B_EINTR;
+ } else {
+ if (error) {
+ bp->b_ioflags |= BIO_ERROR;
+ bp->b_flags |= B_INVAL;
+ bp->b_error = np->n_error = error;
+ NFSLOCKNODE(np);
+ np->n_flag |= NWRITEERR;
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ NFSUNLOCKNODE(np);
+ }
+ bp->b_dirtyoff = bp->b_dirtyend = 0;
+ }
+ } else {
+ bp->b_resid = 0;
+ bufdone(bp);
+ return (0);
+ }
+ }
+ bp->b_resid = uiop->uio_resid;
+ if (must_commit)
+ ncl_clearcommit(vp->v_mount);
+ bufdone(bp);
+ return (error);
+}
+
+/*
+ * Used to aid in handling ftruncate() operations on the NFS client side.
+ * Truncation creates a number of special problems for NFS. We have to
+ * throw away VM pages and buffer cache buffers that are beyond EOF, and
+ * we have to properly handle VM pages or (potentially dirty) buffers
+ * that straddle the truncation point.
+ */
+
+int
+ncl_meta_setsize(struct vnode *vp, struct thread *td, u_quad_t nsize)
+{
+ struct nfsnode *np = VTONFS(vp);
+ u_quad_t tsize;
+ int biosize = vp->v_bufobj.bo_bsize;
+ int error = 0;
+
+ NFSLOCKNODE(np);
+ tsize = np->n_size;
+ np->n_size = nsize;
+ NFSUNLOCKNODE(np);
+
+ if (nsize < tsize) {
+ struct buf *bp;
+ daddr_t lbn;
+ int bufsize;
+
+ /*
+ * vtruncbuf() doesn't get the buffer overlapping the
+ * truncation point. We may have a B_DELWRI and/or B_CACHE
+ * buffer that now needs to be truncated.
+ */
+ error = vtruncbuf(vp, nsize, biosize);
+ lbn = nsize / biosize;
+ bufsize = nsize - (lbn * biosize);
+ bp = nfs_getcacheblk(vp, lbn, bufsize, td);
+ if (!bp)
+ return EINTR;
+ if (bp->b_dirtyoff > bp->b_bcount)
+ bp->b_dirtyoff = bp->b_bcount;
+ if (bp->b_dirtyend > bp->b_bcount)
+ bp->b_dirtyend = bp->b_bcount;
+ bp->b_flags |= B_RELBUF; /* don't leave garbage around */
+ brelse(bp);
+ } else {
+ vnode_pager_setsize(vp, nsize);
+ }
+ return(error);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clcomsubs.c b/freebsd/sys/fs/nfsclient/nfs_clcomsubs.c
new file mode 100644
index 0000000..479a453
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clcomsubs.c
@@ -0,0 +1,439 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * These functions support the macros and help fiddle mbuf chains for
+ * the nfs op functions. They do things like create the rpc header and
+ * copy data between mbuf chains and uio lists.
+ */
+#ifndef APPLEKEXT
+#include <fs/nfs/nfsport.h>
+
+extern struct nfsstatsv1 nfsstatsv1;
+extern int ncl_mbuf_mlen;
+extern enum vtype newnv2tov_type[8];
+extern enum vtype nv34tov_type[8];
+NFSCLSTATEMUTEX;
+#endif /* !APPLEKEXT */
+
+static nfsuint64 nfs_nullcookie = {{ 0, 0 }};
+
+/*
+ * copies a uio scatter/gather list to an mbuf chain.
+ * NOTE: can ony handle iovcnt == 1
+ */
+APPLESTATIC void
+nfsm_uiombuf(struct nfsrv_descript *nd, struct uio *uiop, int siz)
+{
+ char *uiocp;
+ struct mbuf *mp, *mp2;
+ int xfer, left, mlen;
+ int uiosiz, clflg, rem;
+ char *cp, *tcp;
+
+ KASSERT(uiop->uio_iovcnt == 1, ("nfsm_uiotombuf: iovcnt != 1"));
+
+ if (siz > ncl_mbuf_mlen) /* or should it >= MCLBYTES ?? */
+ clflg = 1;
+ else
+ clflg = 0;
+ rem = NFSM_RNDUP(siz) - siz;
+ mp = mp2 = nd->nd_mb;
+ while (siz > 0) {
+ left = uiop->uio_iov->iov_len;
+ uiocp = uiop->uio_iov->iov_base;
+ if (left > siz)
+ left = siz;
+ uiosiz = left;
+ while (left > 0) {
+ mlen = M_TRAILINGSPACE(mp);
+ if (mlen == 0) {
+ if (clflg)
+ NFSMCLGET(mp, M_WAITOK);
+ else
+ NFSMGET(mp);
+ mbuf_setlen(mp, 0);
+ mbuf_setnext(mp2, mp);
+ mp2 = mp;
+ mlen = M_TRAILINGSPACE(mp);
+ }
+ xfer = (left > mlen) ? mlen : left;
+#ifdef notdef
+ /* Not Yet.. */
+ if (uiop->uio_iov->iov_op != NULL)
+ (*(uiop->uio_iov->iov_op))
+ (uiocp, NFSMTOD(mp, caddr_t) + mbuf_len(mp),
+ xfer);
+ else
+#endif
+ if (uiop->uio_segflg == UIO_SYSSPACE)
+ NFSBCOPY(uiocp, NFSMTOD(mp, caddr_t) + mbuf_len(mp),
+ xfer);
+ else
+ copyin(CAST_USER_ADDR_T(uiocp), NFSMTOD(mp, caddr_t)
+ + mbuf_len(mp), xfer);
+ mbuf_setlen(mp, mbuf_len(mp) + xfer);
+ left -= xfer;
+ uiocp += xfer;
+ uiop->uio_offset += xfer;
+ uiop->uio_resid -= xfer;
+ }
+ tcp = (char *)uiop->uio_iov->iov_base;
+ tcp += uiosiz;
+ uiop->uio_iov->iov_base = (void *)tcp;
+ uiop->uio_iov->iov_len -= uiosiz;
+ siz -= uiosiz;
+ }
+ if (rem > 0) {
+ if (rem > M_TRAILINGSPACE(mp)) {
+ NFSMGET(mp);
+ mbuf_setlen(mp, 0);
+ mbuf_setnext(mp2, mp);
+ }
+ cp = NFSMTOD(mp, caddr_t) + mbuf_len(mp);
+ for (left = 0; left < rem; left++)
+ *cp++ = '\0';
+ mbuf_setlen(mp, mbuf_len(mp) + rem);
+ nd->nd_bpos = cp;
+ } else
+ nd->nd_bpos = NFSMTOD(mp, caddr_t) + mbuf_len(mp);
+ nd->nd_mb = mp;
+}
+
+/*
+ * copies a uio scatter/gather list to an mbuf chain.
+ * This version returns the mbuf list and does not use "nd".
+ * NOTE: can ony handle iovcnt == 1
+ */
+struct mbuf *
+nfsm_uiombuflist(struct uio *uiop, int siz, struct mbuf **mbp, char **cpp)
+{
+ char *uiocp;
+ struct mbuf *mp, *mp2, *firstmp;
+ int xfer, left, mlen;
+ int uiosiz, clflg;
+ char *tcp;
+
+ KASSERT(uiop->uio_iovcnt == 1, ("nfsm_uiotombuf: iovcnt != 1"));
+
+ if (siz > ncl_mbuf_mlen) /* or should it >= MCLBYTES ?? */
+ clflg = 1;
+ else
+ clflg = 0;
+ if (clflg != 0)
+ NFSMCLGET(mp, M_WAITOK);
+ else
+ NFSMGET(mp);
+ mbuf_setlen(mp, 0);
+ firstmp = mp2 = mp;
+ while (siz > 0) {
+ left = uiop->uio_iov->iov_len;
+ uiocp = uiop->uio_iov->iov_base;
+ if (left > siz)
+ left = siz;
+ uiosiz = left;
+ while (left > 0) {
+ mlen = M_TRAILINGSPACE(mp);
+ if (mlen == 0) {
+ if (clflg)
+ NFSMCLGET(mp, M_WAITOK);
+ else
+ NFSMGET(mp);
+ mbuf_setlen(mp, 0);
+ mbuf_setnext(mp2, mp);
+ mp2 = mp;
+ mlen = M_TRAILINGSPACE(mp);
+ }
+ xfer = (left > mlen) ? mlen : left;
+ if (uiop->uio_segflg == UIO_SYSSPACE)
+ NFSBCOPY(uiocp, NFSMTOD(mp, caddr_t) +
+ mbuf_len(mp), xfer);
+ else
+ copyin(uiocp, NFSMTOD(mp, caddr_t) +
+ mbuf_len(mp), xfer);
+ mbuf_setlen(mp, mbuf_len(mp) + xfer);
+ left -= xfer;
+ uiocp += xfer;
+ uiop->uio_offset += xfer;
+ uiop->uio_resid -= xfer;
+ }
+ tcp = (char *)uiop->uio_iov->iov_base;
+ tcp += uiosiz;
+ uiop->uio_iov->iov_base = (void *)tcp;
+ uiop->uio_iov->iov_len -= uiosiz;
+ siz -= uiosiz;
+ }
+ if (cpp != NULL)
+ *cpp = NFSMTOD(mp, caddr_t) + mbuf_len(mp);
+ if (mbp != NULL)
+ *mbp = mp;
+ return (firstmp);
+}
+
+/*
+ * Load vnode attributes from the xdr file attributes.
+ * Returns EBADRPC if they can't be parsed, 0 otherwise.
+ */
+APPLESTATIC int
+nfsm_loadattr(struct nfsrv_descript *nd, struct nfsvattr *nap)
+{
+ struct nfs_fattr *fp;
+ int error = 0;
+
+ if (nd->nd_flag & ND_NFSV4) {
+ error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, NULL,
+ NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, NULL, NULL);
+ } else if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(fp, struct nfs_fattr *, NFSX_V3FATTR);
+ nap->na_type = nfsv34tov_type(fp->fa_type);
+ nap->na_mode = fxdr_unsigned(u_short, fp->fa_mode);
+ nap->na_rdev = NFSMAKEDEV(
+ fxdr_unsigned(int, fp->fa3_rdev.specdata1),
+ fxdr_unsigned(int, fp->fa3_rdev.specdata2));
+ nap->na_nlink = fxdr_unsigned(uint32_t, fp->fa_nlink);
+ nap->na_uid = fxdr_unsigned(uid_t, fp->fa_uid);
+ nap->na_gid = fxdr_unsigned(gid_t, fp->fa_gid);
+ nap->na_size = fxdr_hyper(&fp->fa3_size);
+ nap->na_blocksize = NFS_FABLKSIZE;
+ nap->na_bytes = fxdr_hyper(&fp->fa3_used);
+ nap->na_fileid = fxdr_hyper(&fp->fa3_fileid);
+ fxdr_nfsv3time(&fp->fa3_atime, &nap->na_atime);
+ fxdr_nfsv3time(&fp->fa3_ctime, &nap->na_ctime);
+ fxdr_nfsv3time(&fp->fa3_mtime, &nap->na_mtime);
+ nap->na_flags = 0;
+ nap->na_filerev = 0;
+ } else {
+ NFSM_DISSECT(fp, struct nfs_fattr *, NFSX_V2FATTR);
+ nap->na_type = nfsv2tov_type(fp->fa_type);
+ nap->na_mode = fxdr_unsigned(u_short, fp->fa_mode);
+ if (nap->na_type == VNON || nap->na_type == VREG)
+ nap->na_type = IFTOVT(nap->na_mode);
+ nap->na_rdev = fxdr_unsigned(dev_t, fp->fa2_rdev);
+
+ /*
+ * Really ugly NFSv2 kludge.
+ */
+ if (nap->na_type == VCHR && nap->na_rdev == ((dev_t)-1))
+ nap->na_type = VFIFO;
+ nap->na_nlink = fxdr_unsigned(u_short, fp->fa_nlink);
+ nap->na_uid = fxdr_unsigned(uid_t, fp->fa_uid);
+ nap->na_gid = fxdr_unsigned(gid_t, fp->fa_gid);
+ nap->na_size = fxdr_unsigned(u_int32_t, fp->fa2_size);
+ nap->na_blocksize = fxdr_unsigned(int32_t, fp->fa2_blocksize);
+ nap->na_bytes =
+ (u_quad_t)fxdr_unsigned(int32_t, fp->fa2_blocks) *
+ NFS_FABLKSIZE;
+ nap->na_fileid = fxdr_unsigned(uint64_t, fp->fa2_fileid);
+ fxdr_nfsv2time(&fp->fa2_atime, &nap->na_atime);
+ fxdr_nfsv2time(&fp->fa2_mtime, &nap->na_mtime);
+ nap->na_flags = 0;
+ nap->na_ctime.tv_sec = fxdr_unsigned(u_int32_t,
+ fp->fa2_ctime.nfsv2_sec);
+ nap->na_ctime.tv_nsec = 0;
+ nap->na_gen = fxdr_unsigned(u_int32_t,fp->fa2_ctime.nfsv2_usec);
+ nap->na_filerev = 0;
+ }
+nfsmout:
+ return (error);
+}
+
+/*
+ * This function finds the directory cookie that corresponds to the
+ * logical byte offset given.
+ */
+APPLESTATIC nfsuint64 *
+nfscl_getcookie(struct nfsnode *np, off_t off, int add)
+{
+ struct nfsdmap *dp, *dp2;
+ int pos;
+
+ pos = off / NFS_DIRBLKSIZ;
+ if (pos == 0) {
+ KASSERT(!add, ("nfs getcookie add at 0"));
+ return (&nfs_nullcookie);
+ }
+ pos--;
+ dp = LIST_FIRST(&np->n_cookies);
+ if (!dp) {
+ if (add) {
+ dp = malloc(sizeof (struct nfsdmap),
+ M_NFSDIROFF, M_WAITOK);
+ dp->ndm_eocookie = 0;
+ LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list);
+ } else
+ return (NULL);
+ }
+ while (pos >= NFSNUMCOOKIES) {
+ pos -= NFSNUMCOOKIES;
+ if (LIST_NEXT(dp, ndm_list) != NULL) {
+ if (!add && dp->ndm_eocookie < NFSNUMCOOKIES &&
+ pos >= dp->ndm_eocookie)
+ return (NULL);
+ dp = LIST_NEXT(dp, ndm_list);
+ } else if (add) {
+ dp2 = malloc(sizeof (struct nfsdmap),
+ M_NFSDIROFF, M_WAITOK);
+ dp2->ndm_eocookie = 0;
+ LIST_INSERT_AFTER(dp, dp2, ndm_list);
+ dp = dp2;
+ } else
+ return (NULL);
+ }
+ if (pos >= dp->ndm_eocookie) {
+ if (add)
+ dp->ndm_eocookie = pos + 1;
+ else
+ return (NULL);
+ }
+ return (&dp->ndm_cookies[pos]);
+}
+
+/*
+ * Gets a file handle out of an nfs reply sent to the client and returns
+ * the file handle and the file's attributes.
+ * For V4, it assumes that Getfh and Getattr Op's results are here.
+ */
+APPLESTATIC int
+nfscl_mtofh(struct nfsrv_descript *nd, struct nfsfh **nfhpp,
+ struct nfsvattr *nap, int *attrflagp)
+{
+ u_int32_t *tl;
+ int error = 0, flag = 1;
+
+ *nfhpp = NULL;
+ *attrflagp = 0;
+ /*
+ * First get the file handle and vnode.
+ */
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ flag = fxdr_unsigned(int, *tl);
+ } else if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ /* If the GetFH failed, clear flag. */
+ if (*++tl != 0) {
+ nd->nd_flag |= ND_NOMOREDATA;
+ flag = 0;
+ error = ENXIO; /* Return ENXIO so *nfhpp isn't used. */
+ }
+ }
+ if (flag) {
+ error = nfsm_getfh(nd, nfhpp);
+ if (error)
+ return (error);
+ }
+
+ /*
+ * Now, get the attributes.
+ */
+ if (flag != 0 && (nd->nd_flag & ND_NFSV4) != 0) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*++tl != 0) {
+ nd->nd_flag |= ND_NOMOREDATA;
+ flag = 0;
+ }
+ } else if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (flag) {
+ flag = fxdr_unsigned(int, *tl);
+ } else if (fxdr_unsigned(int, *tl)) {
+ error = nfsm_advance(nd, NFSX_V3FATTR, -1);
+ if (error)
+ return (error);
+ }
+ }
+ if (flag) {
+ error = nfsm_loadattr(nd, nap);
+ if (!error)
+ *attrflagp = 1;
+ }
+nfsmout:
+ return (error);
+}
+
+/*
+ * Initialize the owner/delegation sleep lock.
+ */
+APPLESTATIC void
+nfscl_lockinit(struct nfsv4lock *lckp)
+{
+
+ lckp->nfslock_usecnt = 0;
+ lckp->nfslock_lock = 0;
+}
+
+/*
+ * Get an exclusive lock. (Not needed for OpenBSD4, since there is only one
+ * thread for each posix process in the kernel.)
+ */
+APPLESTATIC void
+nfscl_lockexcl(struct nfsv4lock *lckp, void *mutex)
+{
+ int igotlock;
+
+ do {
+ igotlock = nfsv4_lock(lckp, 1, NULL, mutex, NULL);
+ } while (!igotlock);
+}
+
+/*
+ * Release an exclusive lock.
+ */
+APPLESTATIC void
+nfscl_lockunlock(struct nfsv4lock *lckp)
+{
+
+ nfsv4_unlock(lckp, 0);
+}
+
+/*
+ * Called to derefernce a lock on a stateid (delegation or open owner).
+ */
+APPLESTATIC void
+nfscl_lockderef(struct nfsv4lock *lckp)
+{
+
+ NFSLOCKCLSTATE();
+ lckp->nfslock_usecnt--;
+ if (lckp->nfslock_usecnt == 0 && (lckp->nfslock_lock & NFSV4LOCK_WANTED)) {
+ lckp->nfslock_lock &= ~NFSV4LOCK_WANTED;
+ wakeup((caddr_t)lckp);
+ }
+ NFSUNLOCKCLSTATE();
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clkdtrace.c b/freebsd/sys/fs/nfsclient/nfs_clkdtrace.c
new file mode 100644
index 0000000..9e51c2f
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clkdtrace.c
@@ -0,0 +1,587 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * This software was developed at the University of Cambridge Computer
+ * Laboratory with support from a grant from Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+
+#include <sys/dtrace.h>
+#include <sys/dtrace_bsd.h>
+
+#include <fs/nfs/nfsproto.h>
+
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+/*
+ * dtnfscl is a DTrace provider that tracks the intent to perform RPCs
+ * in the NFS client, as well as access to and maintenance of the access and
+ * attribute caches. This is not quite the same as RPCs, because NFS may
+ * issue multiple RPC transactions in the event that authentication fails,
+ * there's a jukebox error, or none at all if the access or attribute cache
+ * hits. However, it cleanly represents the logical layer between RPC
+ * transmission and vnode/vfs operations, providing access to state linking
+ * the two.
+ */
+
+static int dtnfsclient_unload(void);
+static void dtnfsclient_getargdesc(void *, dtrace_id_t, void *,
+ dtrace_argdesc_t *);
+static void dtnfsclient_provide(void *, dtrace_probedesc_t *);
+static void dtnfsclient_destroy(void *, dtrace_id_t, void *);
+static void dtnfsclient_enable(void *, dtrace_id_t, void *);
+static void dtnfsclient_disable(void *, dtrace_id_t, void *);
+static void dtnfsclient_load(void *);
+
+static dtrace_pattr_t dtnfsclient_attr = {
+{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON },
+{ DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
+{ DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
+{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON },
+{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON },
+};
+
+/*
+ * Description of NFSv4, NFSv3 and (optional) NFSv2 probes for a procedure.
+ */
+struct dtnfsclient_rpc {
+ char *nr_v4_name;
+ char *nr_v3_name; /* Or NULL if none. */
+ char *nr_v2_name; /* Or NULL if none. */
+
+ /*
+ * IDs for the start and done cases, for NFSv2, NFSv3 and NFSv4.
+ */
+ uint32_t nr_v2_id_start, nr_v2_id_done;
+ uint32_t nr_v3_id_start, nr_v3_id_done;
+ uint32_t nr_v4_id_start, nr_v4_id_done;
+};
+
+/*
+ * This table is indexed by NFSv3 procedure number, but also used for NFSv2
+ * procedure names and NFSv4 operations.
+ */
+static struct dtnfsclient_rpc dtnfsclient_rpcs[NFSV41_NPROCS + 1] = {
+ { "null", "null", "null" },
+ { "getattr", "getattr", "getattr" },
+ { "setattr", "setattr", "setattr" },
+ { "lookup", "lookup", "lookup" },
+ { "access", "access", "noop" },
+ { "readlink", "readlink", "readlink" },
+ { "read", "read", "read" },
+ { "write", "write", "write" },
+ { "create", "create", "create" },
+ { "mkdir", "mkdir", "mkdir" },
+ { "symlink", "symlink", "symlink" },
+ { "mknod", "mknod" },
+ { "remove", "remove", "remove" },
+ { "rmdir", "rmdir", "rmdir" },
+ { "rename", "rename", "rename" },
+ { "link", "link", "link" },
+ { "readdir", "readdir", "readdir" },
+ { "readdirplus", "readdirplus" },
+ { "fsstat", "fsstat", "statfs" },
+ { "fsinfo", "fsinfo" },
+ { "pathconf", "pathconf" },
+ { "commit", "commit" },
+ { "lookupp" },
+ { "setclientid" },
+ { "setclientidcfrm" },
+ { "lock" },
+ { "locku" },
+ { "open" },
+ { "close" },
+ { "openconfirm" },
+ { "lockt" },
+ { "opendowngrade" },
+ { "renew" },
+ { "putrootfh" },
+ { "releaselckown" },
+ { "delegreturn" },
+ { "retdelegremove" },
+ { "retdelegrename1" },
+ { "retdelegrename2" },
+ { "getacl" },
+ { "setacl" },
+ { "noop", "noop", "noop" }
+};
+
+/*
+ * Module name strings.
+ */
+static char *dtnfsclient_accesscache_str = "accesscache";
+static char *dtnfsclient_attrcache_str = "attrcache";
+static char *dtnfsclient_nfs2_str = "nfs2";
+static char *dtnfsclient_nfs3_str = "nfs3";
+static char *dtnfsclient_nfs4_str = "nfs4";
+
+/*
+ * Function name strings.
+ */
+static char *dtnfsclient_flush_str = "flush";
+static char *dtnfsclient_load_str = "load";
+static char *dtnfsclient_get_str = "get";
+
+/*
+ * Name strings.
+ */
+static char *dtnfsclient_done_str = "done";
+static char *dtnfsclient_hit_str = "hit";
+static char *dtnfsclient_miss_str = "miss";
+static char *dtnfsclient_start_str = "start";
+
+static dtrace_pops_t dtnfsclient_pops = {
+ .dtps_provide = dtnfsclient_provide,
+ .dtps_provide_module = NULL,
+ .dtps_enable = dtnfsclient_enable,
+ .dtps_disable = dtnfsclient_disable,
+ .dtps_suspend = NULL,
+ .dtps_resume = NULL,
+ .dtps_getargdesc = dtnfsclient_getargdesc,
+ .dtps_getargval = NULL,
+ .dtps_usermode = NULL,
+ .dtps_destroy = dtnfsclient_destroy
+};
+
+static dtrace_provider_id_t dtnfsclient_id;
+
+/*
+ * When tracing on a procedure is enabled, the DTrace ID for an RPC event is
+ * stored in one of these two NFS client-allocated arrays; 0 indicates that
+ * the event is not being traced so probes should not be called.
+ *
+ * For simplicity, we allocate both v2, v3 and v4 arrays as NFSV41_NPROCS + 1,
+ * and the v2, v3 arrays are simply sparse.
+ */
+extern uint32_t nfscl_nfs2_start_probes[NFSV41_NPROCS + 1];
+extern uint32_t nfscl_nfs2_done_probes[NFSV41_NPROCS + 1];
+
+extern uint32_t nfscl_nfs3_start_probes[NFSV41_NPROCS + 1];
+extern uint32_t nfscl_nfs3_done_probes[NFSV41_NPROCS + 1];
+
+extern uint32_t nfscl_nfs4_start_probes[NFSV41_NPROCS + 1];
+extern uint32_t nfscl_nfs4_done_probes[NFSV41_NPROCS + 1];
+
+/*
+ * Look up a DTrace probe ID to see if it's associated with a "done" event --
+ * if so, we will return a fourth argument type of "int".
+ */
+static int
+dtnfs234_isdoneprobe(dtrace_id_t id)
+{
+ int i;
+
+ for (i = 0; i < NFSV41_NPROCS + 1; i++) {
+ if (dtnfsclient_rpcs[i].nr_v4_id_done == id ||
+ dtnfsclient_rpcs[i].nr_v3_id_done == id ||
+ dtnfsclient_rpcs[i].nr_v2_id_done == id)
+ return (1);
+ }
+ return (0);
+}
+
+static void
+dtnfsclient_getargdesc(void *arg, dtrace_id_t id, void *parg,
+ dtrace_argdesc_t *desc)
+{
+ const char *p = NULL;
+
+ if (id == nfscl_accesscache_flush_done_id ||
+ id == nfscl_attrcache_flush_done_id ||
+ id == nfscl_attrcache_get_miss_id) {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ } else if (id == nfscl_accesscache_get_hit_id ||
+ id == nfscl_accesscache_get_miss_id) {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ case 1:
+ p = "uid_t";
+ break;
+ case 2:
+ p = "uint32_t";
+ break;
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ } else if (id == nfscl_accesscache_load_done_id) {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ case 1:
+ p = "uid_t";
+ break;
+ case 2:
+ p = "uint32_t";
+ break;
+ case 3:
+ p = "int";
+ break;
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ } else if (id == nfscl_attrcache_get_hit_id) {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ case 1:
+ p = "struct vattr *";
+ break;
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ } else if (id == nfscl_attrcache_load_done_id) {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ case 1:
+ p = "struct vattr *";
+ break;
+ case 2:
+ p = "int";
+ break;
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ } else {
+ switch (desc->dtargd_ndx) {
+ case 0:
+ p = "struct vnode *";
+ break;
+ case 1:
+ p = "struct mbuf *";
+ break;
+ case 2:
+ p = "struct ucred *";
+ break;
+ case 3:
+ p = "int";
+ break;
+ case 4:
+ if (dtnfs234_isdoneprobe(id)) {
+ p = "int";
+ break;
+ }
+ /* FALLSTHROUGH */
+ default:
+ desc->dtargd_ndx = DTRACE_ARGNONE;
+ break;
+ }
+ }
+ if (p != NULL)
+ strlcpy(desc->dtargd_native, p, sizeof(desc->dtargd_native));
+}
+
+static void
+dtnfsclient_provide(void *arg, dtrace_probedesc_t *desc)
+{
+ int i;
+
+ if (desc != NULL)
+ return;
+
+ /*
+ * Register access cache probes.
+ */
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_flush_str, dtnfsclient_done_str) == 0) {
+ nfscl_accesscache_flush_done_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_flush_str, dtnfsclient_done_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_get_str, dtnfsclient_hit_str) == 0) {
+ nfscl_accesscache_get_hit_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_get_str, dtnfsclient_hit_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_get_str, dtnfsclient_miss_str) == 0) {
+ nfscl_accesscache_get_miss_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_get_str, dtnfsclient_miss_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_load_str, dtnfsclient_done_str) == 0) {
+ nfscl_accesscache_load_done_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_accesscache_str,
+ dtnfsclient_load_str, dtnfsclient_done_str, 0, NULL);
+ }
+
+ /*
+ * Register attribute cache probes.
+ */
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_flush_str, dtnfsclient_done_str) == 0) {
+ nfscl_attrcache_flush_done_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_flush_str, dtnfsclient_done_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_get_str, dtnfsclient_hit_str) == 0) {
+ nfscl_attrcache_get_hit_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_get_str, dtnfsclient_hit_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_get_str, dtnfsclient_miss_str) == 0) {
+ nfscl_attrcache_get_miss_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_get_str, dtnfsclient_miss_str, 0, NULL);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_load_str, dtnfsclient_done_str) == 0) {
+ nfscl_attrcache_load_done_id = dtrace_probe_create(
+ dtnfsclient_id, dtnfsclient_attrcache_str,
+ dtnfsclient_load_str, dtnfsclient_done_str, 0, NULL);
+ }
+
+ /*
+ * Register NFSv2 RPC procedures; note sparseness check for each slot
+ * in the NFSv3, NFSv4 procnum-indexed array.
+ */
+ for (i = 0; i < NFSV41_NPROCS + 1; i++) {
+ if (dtnfsclient_rpcs[i].nr_v2_name != NULL &&
+ dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs2_str,
+ dtnfsclient_rpcs[i].nr_v2_name, dtnfsclient_start_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v2_id_start =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs2_str,
+ dtnfsclient_rpcs[i].nr_v2_name,
+ dtnfsclient_start_str, 0,
+ &nfscl_nfs2_start_probes[i]);
+ }
+ if (dtnfsclient_rpcs[i].nr_v2_name != NULL &&
+ dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs2_str,
+ dtnfsclient_rpcs[i].nr_v2_name, dtnfsclient_done_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v2_id_done =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs2_str,
+ dtnfsclient_rpcs[i].nr_v2_name,
+ dtnfsclient_done_str, 0,
+ &nfscl_nfs2_done_probes[i]);
+ }
+ }
+
+ /*
+ * Register NFSv3 RPC procedures; note sparseness check for each slot
+ * in the NFSv4 procnum-indexed array.
+ */
+ for (i = 0; i < NFSV41_NPROCS + 1; i++) {
+ if (dtnfsclient_rpcs[i].nr_v3_name != NULL &&
+ dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs3_str,
+ dtnfsclient_rpcs[i].nr_v3_name, dtnfsclient_start_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v3_id_start =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs3_str,
+ dtnfsclient_rpcs[i].nr_v3_name,
+ dtnfsclient_start_str, 0,
+ &nfscl_nfs3_start_probes[i]);
+ }
+ if (dtnfsclient_rpcs[i].nr_v3_name != NULL &&
+ dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs3_str,
+ dtnfsclient_rpcs[i].nr_v3_name, dtnfsclient_done_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v3_id_done =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs3_str,
+ dtnfsclient_rpcs[i].nr_v3_name,
+ dtnfsclient_done_str, 0,
+ &nfscl_nfs3_done_probes[i]);
+ }
+ }
+
+ /*
+ * Register NFSv4 RPC procedures.
+ */
+ for (i = 0; i < NFSV41_NPROCS + 1; i++) {
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs4_str,
+ dtnfsclient_rpcs[i].nr_v4_name, dtnfsclient_start_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v4_id_start =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs4_str,
+ dtnfsclient_rpcs[i].nr_v4_name,
+ dtnfsclient_start_str, 0,
+ &nfscl_nfs4_start_probes[i]);
+ }
+ if (dtrace_probe_lookup(dtnfsclient_id, dtnfsclient_nfs4_str,
+ dtnfsclient_rpcs[i].nr_v4_name, dtnfsclient_done_str) ==
+ 0) {
+ dtnfsclient_rpcs[i].nr_v4_id_done =
+ dtrace_probe_create(dtnfsclient_id,
+ dtnfsclient_nfs4_str,
+ dtnfsclient_rpcs[i].nr_v4_name,
+ dtnfsclient_done_str, 0,
+ &nfscl_nfs4_done_probes[i]);
+ }
+ }
+}
+
+static void
+dtnfsclient_destroy(void *arg, dtrace_id_t id, void *parg)
+{
+}
+
+static void
+dtnfsclient_enable(void *arg, dtrace_id_t id, void *parg)
+{
+ uint32_t *p = parg;
+ void *f = dtrace_probe;
+
+ if (id == nfscl_accesscache_flush_done_id)
+ dtrace_nfscl_accesscache_flush_done_probe = f;
+ else if (id == nfscl_accesscache_get_hit_id)
+ dtrace_nfscl_accesscache_get_hit_probe = f;
+ else if (id == nfscl_accesscache_get_miss_id)
+ dtrace_nfscl_accesscache_get_miss_probe = f;
+ else if (id == nfscl_accesscache_load_done_id)
+ dtrace_nfscl_accesscache_load_done_probe = f;
+ else if (id == nfscl_attrcache_flush_done_id)
+ dtrace_nfscl_attrcache_flush_done_probe = f;
+ else if (id == nfscl_attrcache_get_hit_id)
+ dtrace_nfscl_attrcache_get_hit_probe = f;
+ else if (id == nfscl_attrcache_get_miss_id)
+ dtrace_nfscl_attrcache_get_miss_probe = f;
+ else if (id == nfscl_attrcache_load_done_id)
+ dtrace_nfscl_attrcache_load_done_probe = f;
+ else
+ *p = id;
+}
+
+static void
+dtnfsclient_disable(void *arg, dtrace_id_t id, void *parg)
+{
+ uint32_t *p = parg;
+
+ if (id == nfscl_accesscache_flush_done_id)
+ dtrace_nfscl_accesscache_flush_done_probe = NULL;
+ else if (id == nfscl_accesscache_get_hit_id)
+ dtrace_nfscl_accesscache_get_hit_probe = NULL;
+ else if (id == nfscl_accesscache_get_miss_id)
+ dtrace_nfscl_accesscache_get_miss_probe = NULL;
+ else if (id == nfscl_accesscache_load_done_id)
+ dtrace_nfscl_accesscache_load_done_probe = NULL;
+ else if (id == nfscl_attrcache_flush_done_id)
+ dtrace_nfscl_attrcache_flush_done_probe = NULL;
+ else if (id == nfscl_attrcache_get_hit_id)
+ dtrace_nfscl_attrcache_get_hit_probe = NULL;
+ else if (id == nfscl_attrcache_get_miss_id)
+ dtrace_nfscl_attrcache_get_miss_probe = NULL;
+ else if (id == nfscl_attrcache_load_done_id)
+ dtrace_nfscl_attrcache_load_done_probe = NULL;
+ else
+ *p = 0;
+}
+
+static void
+dtnfsclient_load(void *dummy)
+{
+
+ if (dtrace_register("nfscl", &dtnfsclient_attr,
+ DTRACE_PRIV_USER, NULL, &dtnfsclient_pops, NULL,
+ &dtnfsclient_id) != 0)
+ return;
+
+ dtrace_nfscl_nfs234_start_probe =
+ (dtrace_nfsclient_nfs23_start_probe_func_t)dtrace_probe;
+ dtrace_nfscl_nfs234_done_probe =
+ (dtrace_nfsclient_nfs23_done_probe_func_t)dtrace_probe;
+}
+
+
+static int
+dtnfsclient_unload()
+{
+
+ dtrace_nfscl_nfs234_start_probe = NULL;
+ dtrace_nfscl_nfs234_done_probe = NULL;
+
+ return (dtrace_unregister(dtnfsclient_id));
+}
+
+static int
+dtnfsclient_modevent(module_t mod __unused, int type, void *data __unused)
+{
+ int error = 0;
+
+ switch (type) {
+ case MOD_LOAD:
+ break;
+
+ case MOD_UNLOAD:
+ break;
+
+ case MOD_SHUTDOWN:
+ break;
+
+ default:
+ error = EOPNOTSUPP;
+ break;
+ }
+
+ return (error);
+}
+
+SYSINIT(dtnfsclient_load, SI_SUB_DTRACE_PROVIDER, SI_ORDER_ANY,
+ dtnfsclient_load, NULL);
+SYSUNINIT(dtnfsclient_unload, SI_SUB_DTRACE_PROVIDER, SI_ORDER_ANY,
+ dtnfsclient_unload, NULL);
+
+DEV_MODULE(dtnfscl, dtnfsclient_modevent, NULL);
+MODULE_VERSION(dtnfscl, 1);
+MODULE_DEPEND(dtnfscl, dtrace, 1, 1, 1);
+MODULE_DEPEND(dtnfscl, opensolaris, 1, 1, 1);
+MODULE_DEPEND(dtnfscl, nfscl, 1, 1, 1);
+MODULE_DEPEND(dtnfscl, nfscommon, 1, 1, 1);
diff --git a/freebsd/sys/fs/nfsclient/nfs_clkrpc.c b/freebsd/sys/fs/nfsclient/nfs_clkrpc.c
new file mode 100644
index 0000000..6bdeaa7
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clkrpc.c
@@ -0,0 +1,299 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_kgssapi.h"
+
+#include <fs/nfs/nfsport.h>
+
+#include <rpc/rpc.h>
+#include <rpc/rpcsec_gss.h>
+#include <rpc/replay.h>
+
+
+NFSDLOCKMUTEX;
+
+extern SVCPOOL *nfscbd_pool;
+
+static int nfs_cbproc(struct nfsrv_descript *, u_int32_t);
+
+extern u_long sb_max_adj;
+extern int nfs_numnfscbd;
+extern int nfscl_debuglevel;
+
+/*
+ * NFS client system calls for handling callbacks.
+ */
+
+/*
+ * Handles server to client callbacks.
+ */
+static void
+nfscb_program(struct svc_req *rqst, SVCXPRT *xprt)
+{
+ struct nfsrv_descript nd;
+ int cacherep, credflavor;
+
+ memset(&nd, 0, sizeof(nd));
+ if (rqst->rq_proc != NFSPROC_NULL &&
+ rqst->rq_proc != NFSV4PROC_CBCOMPOUND) {
+ svcerr_noproc(rqst);
+ svc_freereq(rqst);
+ return;
+ }
+ nd.nd_procnum = rqst->rq_proc;
+ nd.nd_flag = (ND_NFSCB | ND_NFSV4);
+
+ /*
+ * Note: we want rq_addr, not svc_getrpccaller for nd_nam2 -
+ * NFS_SRVMAXDATA uses a NULL value for nd_nam2 to detect TCP
+ * mounts.
+ */
+ nd.nd_mrep = rqst->rq_args;
+ rqst->rq_args = NULL;
+ newnfs_realign(&nd.nd_mrep, M_WAITOK);
+ nd.nd_md = nd.nd_mrep;
+ nd.nd_dpos = mtod(nd.nd_md, caddr_t);
+ nd.nd_nam = svc_getrpccaller(rqst);
+ nd.nd_nam2 = rqst->rq_addr;
+ nd.nd_mreq = NULL;
+ nd.nd_cred = NULL;
+
+ NFSCL_DEBUG(1, "cbproc=%d\n",nd.nd_procnum);
+ if (nd.nd_procnum != NFSPROC_NULL) {
+ if (!svc_getcred(rqst, &nd.nd_cred, &credflavor)) {
+ svcerr_weakauth(rqst);
+ svc_freereq(rqst);
+ m_freem(nd.nd_mrep);
+ return;
+ }
+
+ /* For now, I don't care what credential flavor was used. */
+#ifdef notyet
+#ifdef MAC
+ mac_cred_associate_nfsd(nd.nd_cred);
+#endif
+#endif
+ cacherep = nfs_cbproc(&nd, rqst->rq_xid);
+ } else {
+ NFSMGET(nd.nd_mreq);
+ nd.nd_mreq->m_len = 0;
+ cacherep = RC_REPLY;
+ }
+ if (nd.nd_mrep != NULL)
+ m_freem(nd.nd_mrep);
+
+ if (nd.nd_cred != NULL)
+ crfree(nd.nd_cred);
+
+ if (cacherep == RC_DROPIT) {
+ if (nd.nd_mreq != NULL)
+ m_freem(nd.nd_mreq);
+ svc_freereq(rqst);
+ return;
+ }
+
+ if (nd.nd_mreq == NULL) {
+ svcerr_decode(rqst);
+ svc_freereq(rqst);
+ return;
+ }
+
+ if (nd.nd_repstat & NFSERR_AUTHERR) {
+ svcerr_auth(rqst, nd.nd_repstat & ~NFSERR_AUTHERR);
+ if (nd.nd_mreq != NULL)
+ m_freem(nd.nd_mreq);
+ } else if (!svc_sendreply_mbuf(rqst, nd.nd_mreq))
+ svcerr_systemerr(rqst);
+ else
+ NFSCL_DEBUG(1, "cbrep sent\n");
+ svc_freereq(rqst);
+}
+
+/*
+ * Check the cache and, optionally, do the RPC.
+ * Return the appropriate cache response.
+ */
+static int
+nfs_cbproc(struct nfsrv_descript *nd, u_int32_t xid)
+{
+ struct thread *td = curthread;
+ int cacherep;
+
+ if (nd->nd_nam2 == NULL)
+ nd->nd_flag |= ND_STREAMSOCK;
+
+ nfscl_docb(nd, td);
+ if (nd->nd_repstat == NFSERR_DONTREPLY)
+ cacherep = RC_DROPIT;
+ else
+ cacherep = RC_REPLY;
+ return (cacherep);
+}
+
+/*
+ * Adds a socket to the list for servicing by nfscbds.
+ */
+int
+nfscbd_addsock(struct file *fp)
+{
+ int siz;
+ struct socket *so;
+ int error;
+ SVCXPRT *xprt;
+
+ so = fp->f_data;
+
+ siz = sb_max_adj;
+ error = soreserve(so, siz, siz);
+ if (error)
+ return (error);
+
+ /*
+ * Steal the socket from userland so that it doesn't close
+ * unexpectedly.
+ */
+ if (so->so_type == SOCK_DGRAM)
+ xprt = svc_dg_create(nfscbd_pool, so, 0, 0);
+ else
+ xprt = svc_vc_create(nfscbd_pool, so, 0, 0);
+ if (xprt) {
+ fp->f_ops = &badfileops;
+ fp->f_data = NULL;
+ svc_reg(xprt, NFS_CALLBCKPROG, NFSV4_CBVERS, nfscb_program,
+ NULL);
+ SVC_RELEASE(xprt);
+ }
+
+ return (0);
+}
+
+/*
+ * Called by nfssvc() for nfscbds. Just loops around servicing rpc requests
+ * until it is killed by a signal.
+ *
+ * For now, only support callbacks via RPCSEC_GSS if there is a KerberosV
+ * keytab entry with a host based entry in it on the client. (I'm not even
+ * sure that getting Acceptor credentials for a user principal with a
+ * credentials cache is possible, but even if it is, major changes to the
+ * kgssapi would be required.)
+ * I don't believe that this is a serious limitation since, as of 2009, most
+ * NFSv4 servers supporting callbacks are using AUTH_SYS for callbacks even
+ * when the client is using RPCSEC_GSS. (This BSD server uses AUTH_SYS
+ * for callbacks unless nfsrv_gsscallbackson is set non-zero.)
+ */
+int
+nfscbd_nfsd(struct thread *td, struct nfsd_nfscbd_args *args)
+{
+ char principal[128];
+ int error;
+
+ if (args != NULL) {
+ error = copyinstr(args->principal, principal,
+ sizeof(principal), NULL);
+ if (error)
+ return (error);
+ } else {
+ principal[0] = '\0';
+ }
+
+ /*
+ * Only the first nfsd actually does any work. The RPC code
+ * adds threads to it as needed. Any extra processes offered
+ * by nfsd just exit. If nfsd is new enough, it will call us
+ * once with a structure that specifies how many threads to
+ * use.
+ */
+ NFSD_LOCK();
+ if (nfs_numnfscbd == 0) {
+ nfs_numnfscbd++;
+
+ NFSD_UNLOCK();
+
+ if (principal[0] != '\0')
+ rpc_gss_set_svc_name_call(principal, "kerberosv5",
+ GSS_C_INDEFINITE, NFS_CALLBCKPROG, NFSV4_CBVERS);
+
+ nfscbd_pool->sp_minthreads = 4;
+ nfscbd_pool->sp_maxthreads = 4;
+
+ svc_run(nfscbd_pool);
+
+ rpc_gss_clear_svc_name_call(NFS_CALLBCKPROG, NFSV4_CBVERS);
+
+ NFSD_LOCK();
+ nfs_numnfscbd--;
+ nfsrvd_cbinit(1);
+ }
+ NFSD_UNLOCK();
+
+ return (0);
+}
+
+/*
+ * Initialize the data structures for the server.
+ * Handshake with any new nfsds starting up to avoid any chance of
+ * corruption.
+ */
+void
+nfsrvd_cbinit(int terminating)
+{
+
+ NFSD_LOCK_ASSERT();
+
+ if (terminating) {
+ /* Wait for any xprt registrations to complete. */
+ while (nfs_numnfscbd > 0)
+ msleep(&nfs_numnfscbd, NFSDLOCKMUTEXPTR, PZERO,
+ "nfscbdt", 0);
+ if (nfscbd_pool != NULL) {
+ NFSD_UNLOCK();
+ svcpool_close(nfscbd_pool);
+ NFSD_LOCK();
+ }
+ }
+
+ if (nfscbd_pool == NULL) {
+ NFSD_UNLOCK();
+ nfscbd_pool = svcpool_create("nfscbd", NULL);
+ nfscbd_pool->sp_rcache = NULL;
+ nfscbd_pool->sp_assign = NULL;
+ nfscbd_pool->sp_done = NULL;
+ NFSD_LOCK();
+ }
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clnfsiod.c b/freebsd/sys/fs/nfsclient/nfs_clnfsiod.c
new file mode 100644
index 0000000..3f0fb77
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clnfsiod.c
@@ -0,0 +1,343 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_syscalls.c 8.5 (Berkeley) 3/30/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sysproto.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <sys/file.h>
+#include <sys/vnode.h>
+#include <sys/malloc.h>
+#include <sys/mount.h>
+#include <sys/proc.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/domain.h>
+#include <sys/protosw.h>
+#include <sys/namei.h>
+#include <sys/unistd.h>
+#include <sys/kthread.h>
+#include <sys/fcntl.h>
+#include <sys/lockf.h>
+#include <sys/mutex.h>
+#include <sys/taskqueue.h>
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <fs/nfsclient/nfsnode.h>
+
+extern struct mtx ncl_iod_mutex;
+extern struct task ncl_nfsiodnew_task;
+
+int ncl_numasync;
+enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
+struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
+
+static void nfssvc_iod(void *);
+
+static int nfs_asyncdaemon[NFS_MAXASYNCDAEMON];
+
+SYSCTL_DECL(_vfs_nfs);
+
+/* Maximum number of seconds a nfsiod kthread will sleep before exiting */
+static unsigned int nfs_iodmaxidle = 120;
+SYSCTL_UINT(_vfs_nfs, OID_AUTO, iodmaxidle, CTLFLAG_RW, &nfs_iodmaxidle, 0,
+ "Max number of seconds an nfsiod kthread will sleep before exiting");
+
+/* Maximum number of nfsiod kthreads */
+unsigned int ncl_iodmax = 20;
+
+/* Minimum number of nfsiod kthreads to keep as spares */
+static unsigned int nfs_iodmin = 0;
+
+static int nfs_nfsiodnew_sync(void);
+
+static int
+sysctl_iodmin(SYSCTL_HANDLER_ARGS)
+{
+ int error, i;
+ int newmin;
+
+ newmin = nfs_iodmin;
+ error = sysctl_handle_int(oidp, &newmin, 0, req);
+ if (error || (req->newptr == NULL))
+ return (error);
+ NFSLOCKIOD();
+ if (newmin > ncl_iodmax) {
+ error = EINVAL;
+ goto out;
+ }
+ nfs_iodmin = newmin;
+ if (ncl_numasync >= nfs_iodmin)
+ goto out;
+ /*
+ * If the current number of nfsiod is lower
+ * than the new minimum, create some more.
+ */
+ for (i = nfs_iodmin - ncl_numasync; i > 0; i--)
+ nfs_nfsiodnew_sync();
+out:
+ NFSUNLOCKIOD();
+ return (0);
+}
+SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmin, CTLTYPE_UINT | CTLFLAG_RW, 0,
+ sizeof (nfs_iodmin), sysctl_iodmin, "IU",
+ "Min number of nfsiod kthreads to keep as spares");
+
+static int
+sysctl_iodmax(SYSCTL_HANDLER_ARGS)
+{
+ int error, i;
+ int iod, newmax;
+
+ newmax = ncl_iodmax;
+ error = sysctl_handle_int(oidp, &newmax, 0, req);
+ if (error || (req->newptr == NULL))
+ return (error);
+ if (newmax > NFS_MAXASYNCDAEMON)
+ return (EINVAL);
+ NFSLOCKIOD();
+ ncl_iodmax = newmax;
+ if (ncl_numasync <= ncl_iodmax)
+ goto out;
+ /*
+ * If there are some asleep nfsiods that should
+ * exit, wakeup() them so that they check ncl_iodmax
+ * and exit. Those who are active will exit as
+ * soon as they finish I/O.
+ */
+ iod = ncl_numasync - 1;
+ for (i = 0; i < ncl_numasync - ncl_iodmax; i++) {
+ if (ncl_iodwant[iod] == NFSIOD_AVAILABLE)
+ wakeup(&ncl_iodwant[iod]);
+ iod--;
+ }
+out:
+ NFSUNLOCKIOD();
+ return (0);
+}
+SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmax, CTLTYPE_UINT | CTLFLAG_RW, 0,
+ sizeof (ncl_iodmax), sysctl_iodmax, "IU",
+ "Max number of nfsiod kthreads");
+
+static int
+nfs_nfsiodnew_sync(void)
+{
+ int error, i;
+
+ NFSASSERTIOD();
+ for (i = 0; i < ncl_iodmax; i++) {
+ if (nfs_asyncdaemon[i] == 0) {
+ nfs_asyncdaemon[i] = 1;
+ break;
+ }
+ }
+ if (i == ncl_iodmax)
+ return (0);
+ NFSUNLOCKIOD();
+ error = kproc_create(nfssvc_iod, nfs_asyncdaemon + i, NULL,
+ RFHIGHPID, 0, "newnfs %d", i);
+ NFSLOCKIOD();
+ if (error == 0) {
+ ncl_numasync++;
+ ncl_iodwant[i] = NFSIOD_AVAILABLE;
+ } else
+ nfs_asyncdaemon[i] = 0;
+ return (error);
+}
+
+void
+ncl_nfsiodnew_tq(__unused void *arg, int pending)
+{
+
+ NFSLOCKIOD();
+ while (pending > 0) {
+ pending--;
+ nfs_nfsiodnew_sync();
+ }
+ NFSUNLOCKIOD();
+}
+
+void
+ncl_nfsiodnew(void)
+{
+
+ NFSASSERTIOD();
+ taskqueue_enqueue(taskqueue_thread, &ncl_nfsiodnew_task);
+}
+
+static void
+nfsiod_setup(void *dummy)
+{
+ int error;
+
+ TUNABLE_INT_FETCH("vfs.nfs.iodmin", &nfs_iodmin);
+ nfscl_init();
+ NFSLOCKIOD();
+ /* Silently limit the start number of nfsiod's */
+ if (nfs_iodmin > NFS_MAXASYNCDAEMON)
+ nfs_iodmin = NFS_MAXASYNCDAEMON;
+
+ while (ncl_numasync < nfs_iodmin) {
+ error = nfs_nfsiodnew_sync();
+ if (error == -1)
+ panic("nfsiod_setup: nfs_nfsiodnew failed");
+ }
+ NFSUNLOCKIOD();
+}
+SYSINIT(newnfsiod, SI_SUB_KTHREAD_IDLE, SI_ORDER_ANY, nfsiod_setup, NULL);
+
+static int nfs_defect = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, defect, CTLFLAG_RW, &nfs_defect, 0,
+ "Allow nfsiods to migrate serving different mounts");
+
+/*
+ * Asynchronous I/O daemons for client nfs.
+ * They do read-ahead and write-behind operations on the block I/O cache.
+ * Returns if we hit the timeout defined by the iodmaxidle sysctl.
+ */
+static void
+nfssvc_iod(void *instance)
+{
+ struct buf *bp;
+ struct nfsmount *nmp;
+ int myiod, timo;
+ int error = 0;
+
+ NFSLOCKIOD();
+ myiod = (int *)instance - nfs_asyncdaemon;
+ /*
+ * Main loop
+ */
+ for (;;) {
+ while (((nmp = ncl_iodmount[myiod]) == NULL)
+ || !TAILQ_FIRST(&nmp->nm_bufq)) {
+ if (myiod >= ncl_iodmax)
+ goto finish;
+ if (nmp)
+ nmp->nm_bufqiods--;
+ if (ncl_iodwant[myiod] == NFSIOD_NOT_AVAILABLE)
+ ncl_iodwant[myiod] = NFSIOD_AVAILABLE;
+ ncl_iodmount[myiod] = NULL;
+ /*
+ * Always keep at least nfs_iodmin kthreads.
+ */
+ timo = (myiod < nfs_iodmin) ? 0 : nfs_iodmaxidle * hz;
+ error = msleep(&ncl_iodwant[myiod], &ncl_iod_mutex, PWAIT | PCATCH,
+ "-", timo);
+ if (error) {
+ nmp = ncl_iodmount[myiod];
+ /*
+ * Rechecking the nm_bufq closes a rare race where the
+ * nfsiod is woken up at the exact time the idle timeout
+ * fires
+ */
+ if (nmp && TAILQ_FIRST(&nmp->nm_bufq))
+ error = 0;
+ break;
+ }
+ }
+ if (error)
+ break;
+ while ((bp = TAILQ_FIRST(&nmp->nm_bufq)) != NULL) {
+ /* Take one off the front of the list */
+ TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist);
+ nmp->nm_bufqlen--;
+ if (nmp->nm_bufqwant && nmp->nm_bufqlen <= ncl_numasync) {
+ nmp->nm_bufqwant = 0;
+ wakeup(&nmp->nm_bufq);
+ }
+ NFSUNLOCKIOD();
+ if (bp->b_flags & B_DIRECT) {
+ KASSERT((bp->b_iocmd == BIO_WRITE), ("nfscvs_iod: BIO_WRITE not set"));
+ (void)ncl_doio_directwrite(bp);
+ } else {
+ if (bp->b_iocmd == BIO_READ)
+ (void) ncl_doio(bp->b_vp, bp, bp->b_rcred,
+ NULL, 0);
+ else
+ (void) ncl_doio(bp->b_vp, bp, bp->b_wcred,
+ NULL, 0);
+ }
+ NFSLOCKIOD();
+ /*
+ * Make sure the nmp hasn't been dismounted as soon as
+ * ncl_doio() completes for the last buffer.
+ */
+ nmp = ncl_iodmount[myiod];
+ if (nmp == NULL)
+ break;
+
+ /*
+ * If there are more than one iod on this mount, then defect
+ * so that the iods can be shared out fairly between the mounts
+ */
+ if (nfs_defect && nmp->nm_bufqiods > 1) {
+ NFS_DPF(ASYNCIO,
+ ("nfssvc_iod: iod %d defecting from mount %p\n",
+ myiod, nmp));
+ ncl_iodmount[myiod] = NULL;
+ nmp->nm_bufqiods--;
+ break;
+ }
+ }
+ }
+finish:
+ nfs_asyncdaemon[myiod] = 0;
+ if (nmp)
+ nmp->nm_bufqiods--;
+ ncl_iodwant[myiod] = NFSIOD_NOT_AVAILABLE;
+ ncl_iodmount[myiod] = NULL;
+ /* Someone may be waiting for the last nfsiod to terminate. */
+ if (--ncl_numasync == 0)
+ wakeup(&ncl_numasync);
+ NFSUNLOCKIOD();
+ if ((error == 0) || (error == EWOULDBLOCK))
+ kproc_exit(0);
+ /* Abnormal termination */
+ kproc_exit(1);
+}
diff --git a/freebsd/sys/fs/nfsclient/nfs_clnode.c b/freebsd/sys/fs/nfsclient/nfs_clnode.c
new file mode 100644
index 0000000..f41cb87
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clnode.c
@@ -0,0 +1,365 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_node.c 8.6 (Berkeley) 5/22/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/fcntl.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mount.h>
+#include <sys/namei.h>
+#include <sys/proc.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/taskqueue.h>
+#include <sys/vnode.h>
+
+#include <vm/uma.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsnode.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+#include <nfs/nfs_lock.h>
+
+extern struct vop_vector newnfs_vnodeops;
+extern struct buf_ops buf_ops_newnfs;
+MALLOC_DECLARE(M_NEWNFSREQ);
+
+uma_zone_t newnfsnode_zone;
+
+const char nfs_vnode_tag[] = "nfs";
+
+static void nfs_freesillyrename(void *arg, __unused int pending);
+
+void
+ncl_nhinit(void)
+{
+
+ newnfsnode_zone = uma_zcreate("NCLNODE", sizeof(struct nfsnode), NULL,
+ NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
+}
+
+void
+ncl_nhuninit(void)
+{
+ uma_zdestroy(newnfsnode_zone);
+}
+
+/*
+ * ONLY USED FOR THE ROOT DIRECTORY. nfscl_nget() does the rest. If this
+ * function is going to be used to get Regular Files, code must be added
+ * to fill in the "struct nfsv4node".
+ * Look up a vnode/nfsnode by file handle.
+ * Callers must check for mount points!!
+ * In all cases, a pointer to a
+ * nfsnode structure is returned.
+ */
+int
+ncl_nget(struct mount *mntp, u_int8_t *fhp, int fhsize, struct nfsnode **npp,
+ int lkflags)
+{
+ struct thread *td = curthread; /* XXX */
+ struct nfsnode *np;
+ struct vnode *vp;
+ struct vnode *nvp;
+ int error;
+ u_int hash;
+ struct nfsmount *nmp;
+ struct nfsfh *nfhp;
+
+ nmp = VFSTONFS(mntp);
+ *npp = NULL;
+
+ hash = fnv_32_buf(fhp, fhsize, FNV1_32_INIT);
+
+ nfhp = malloc(sizeof (struct nfsfh) + fhsize,
+ M_NFSFH, M_WAITOK);
+ bcopy(fhp, &nfhp->nfh_fh[0], fhsize);
+ nfhp->nfh_len = fhsize;
+ error = vfs_hash_get(mntp, hash, lkflags,
+ td, &nvp, newnfs_vncmpf, nfhp);
+ free(nfhp, M_NFSFH);
+ if (error)
+ return (error);
+ if (nvp != NULL) {
+ *npp = VTONFS(nvp);
+ return (0);
+ }
+ np = uma_zalloc(newnfsnode_zone, M_WAITOK | M_ZERO);
+
+ error = getnewvnode(nfs_vnode_tag, mntp, &newnfs_vnodeops, &nvp);
+ if (error) {
+ uma_zfree(newnfsnode_zone, np);
+ return (error);
+ }
+ vp = nvp;
+ KASSERT(vp->v_bufobj.bo_bsize != 0, ("ncl_nget: bo_bsize == 0"));
+ vp->v_bufobj.bo_ops = &buf_ops_newnfs;
+ vp->v_data = np;
+ np->n_vnode = vp;
+ /*
+ * Initialize the mutex even if the vnode is going to be a loser.
+ * This simplifies the logic in reclaim, which can then unconditionally
+ * destroy the mutex (in the case of the loser, or if hash_insert
+ * happened to return an error no special casing is needed).
+ */
+ mtx_init(&np->n_mtx, "NEWNFSnode lock", NULL, MTX_DEF | MTX_DUPOK);
+ lockinit(&np->n_excl, PVFS, "nfsupg", VLKTIMEOUT, LK_NOSHARE |
+ LK_CANRECURSE);
+
+ /*
+ * NFS supports recursive and shared locking.
+ */
+ lockmgr(vp->v_vnlock, LK_EXCLUSIVE | LK_NOWITNESS, NULL);
+ VN_LOCK_AREC(vp);
+ VN_LOCK_ASHARE(vp);
+ /*
+ * Are we getting the root? If so, make sure the vnode flags
+ * are correct
+ */
+ if ((fhsize == nmp->nm_fhsize) &&
+ !bcmp(fhp, nmp->nm_fh, fhsize)) {
+ if (vp->v_type == VNON)
+ vp->v_type = VDIR;
+ vp->v_vflag |= VV_ROOT;
+ }
+
+ vp->v_vflag |= VV_VMSIZEVNLOCK;
+
+ np->n_fhp = malloc(sizeof (struct nfsfh) + fhsize,
+ M_NFSFH, M_WAITOK);
+ bcopy(fhp, np->n_fhp->nfh_fh, fhsize);
+ np->n_fhp->nfh_len = fhsize;
+ error = insmntque(vp, mntp);
+ if (error != 0) {
+ *npp = NULL;
+ free(np->n_fhp, M_NFSFH);
+ mtx_destroy(&np->n_mtx);
+ lockdestroy(&np->n_excl);
+ uma_zfree(newnfsnode_zone, np);
+ return (error);
+ }
+ error = vfs_hash_insert(vp, hash, lkflags,
+ td, &nvp, newnfs_vncmpf, np->n_fhp);
+ if (error)
+ return (error);
+ if (nvp != NULL) {
+ *npp = VTONFS(nvp);
+ /* vfs_hash_insert() vput()'s the losing vnode */
+ return (0);
+ }
+ *npp = np;
+
+ return (0);
+}
+
+/*
+ * Do the vrele(sp->s_dvp) as a separate task in order to avoid a
+ * deadlock because of a LOR when vrele() locks the directory vnode.
+ */
+static void
+nfs_freesillyrename(void *arg, __unused int pending)
+{
+ struct sillyrename *sp;
+
+ sp = arg;
+ vrele(sp->s_dvp);
+ free(sp, M_NEWNFSREQ);
+}
+
+static void
+ncl_releasesillyrename(struct vnode *vp, struct thread *td)
+{
+ struct nfsnode *np;
+ struct sillyrename *sp;
+
+ ASSERT_VOP_ELOCKED(vp, "releasesillyrename");
+ np = VTONFS(vp);
+ NFSASSERTNODE(np);
+ if (vp->v_type != VDIR) {
+ sp = np->n_sillyrename;
+ np->n_sillyrename = NULL;
+ } else
+ sp = NULL;
+ if (sp != NULL) {
+ NFSUNLOCKNODE(np);
+ (void) ncl_vinvalbuf(vp, 0, td, 1);
+ /*
+ * Remove the silly file that was rename'd earlier
+ */
+ ncl_removeit(sp, vp);
+ crfree(sp->s_cred);
+ TASK_INIT(&sp->s_task, 0, nfs_freesillyrename, sp);
+ taskqueue_enqueue(taskqueue_thread, &sp->s_task);
+ NFSLOCKNODE(np);
+ }
+}
+
+int
+ncl_inactive(struct vop_inactive_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np;
+ boolean_t retv;
+
+ if (NFS_ISV4(vp) && vp->v_type == VREG) {
+ /*
+ * Since mmap()'d files do I/O after VOP_CLOSE(), the NFSv4
+ * Close operations are delayed until now. Any dirty
+ * buffers/pages must be flushed before the close, so that the
+ * stateid is available for the writes.
+ */
+ if (vp->v_object != NULL) {
+ VM_OBJECT_WLOCK(vp->v_object);
+ retv = vm_object_page_clean(vp->v_object, 0, 0,
+ OBJPC_SYNC);
+ VM_OBJECT_WUNLOCK(vp->v_object);
+ } else
+ retv = TRUE;
+ if (retv == TRUE) {
+ (void)ncl_flush(vp, MNT_WAIT, ap->a_td, 1, 0);
+ (void)nfsrpc_close(vp, 1, ap->a_td);
+ }
+ }
+
+ np = VTONFS(vp);
+ NFSLOCKNODE(np);
+ ncl_releasesillyrename(vp, ap->a_td);
+
+ /*
+ * NMODIFIED means that there might be dirty/stale buffers
+ * associated with the NFS vnode.
+ * NDSCOMMIT means that the file is on a pNFS server and commits
+ * should be done to the DS.
+ * None of the other flags are meaningful after the vnode is unused.
+ */
+ np->n_flag &= (NMODIFIED | NDSCOMMIT);
+ NFSUNLOCKNODE(np);
+ return (0);
+}
+
+/*
+ * Reclaim an nfsnode so that it can be used for other purposes.
+ */
+int
+ncl_reclaim(struct vop_reclaim_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsdmap *dp, *dp2;
+
+ /*
+ * If the NLM is running, give it a chance to abort pending
+ * locks.
+ */
+ if (nfs_reclaim_p != NULL)
+ nfs_reclaim_p(ap);
+
+ NFSLOCKNODE(np);
+ ncl_releasesillyrename(vp, ap->a_td);
+ NFSUNLOCKNODE(np);
+
+ /*
+ * Destroy the vm object and flush associated pages.
+ */
+ vnode_destroy_vobject(vp);
+
+ if (NFS_ISV4(vp) && vp->v_type == VREG)
+ /*
+ * We can now safely close any remaining NFSv4 Opens for
+ * this file. Most opens will have already been closed by
+ * ncl_inactive(), but there are cases where it is not
+ * called, so we need to do it again here.
+ */
+ (void) nfsrpc_close(vp, 1, ap->a_td);
+
+ vfs_hash_remove(vp);
+
+ /*
+ * Call nfscl_reclaimnode() to save attributes in the delegation,
+ * as required.
+ */
+ if (vp->v_type == VREG)
+ nfscl_reclaimnode(vp);
+
+ /*
+ * Free up any directory cookie structures and
+ * large file handle structures that might be associated with
+ * this nfs node.
+ */
+ if (vp->v_type == VDIR) {
+ dp = LIST_FIRST(&np->n_cookies);
+ while (dp) {
+ dp2 = dp;
+ dp = LIST_NEXT(dp, ndm_list);
+ free(dp2, M_NFSDIROFF);
+ }
+ }
+ if (np->n_writecred != NULL)
+ crfree(np->n_writecred);
+ free(np->n_fhp, M_NFSFH);
+ if (np->n_v4 != NULL)
+ free(np->n_v4, M_NFSV4NODE);
+ mtx_destroy(&np->n_mtx);
+ lockdestroy(&np->n_excl);
+ uma_zfree(newnfsnode_zone, vp->v_data);
+ vp->v_data = NULL;
+ return (0);
+}
+
+/*
+ * Invalidate both the access and attribute caches for this vnode.
+ */
+void
+ncl_invalcaches(struct vnode *vp)
+{
+ struct nfsnode *np = VTONFS(vp);
+ int i;
+
+ NFSLOCKNODE(np);
+ for (i = 0; i < NFS_ACCESSCACHESIZE; i++)
+ np->n_accesscache[i].stamp = 0;
+ KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp);
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ NFSUNLOCKNODE(np);
+}
diff --git a/freebsd/sys/fs/nfsclient/nfs_clport.c b/freebsd/sys/fs/nfsclient/nfs_clport.c
new file mode 100644
index 0000000..74320c9
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clport.c
@@ -0,0 +1,1414 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_inet.h"
+#include "opt_inet6.h"
+
+#include <sys/capsicum.h>
+
+/*
+ * generally, I don't like #includes inside .h files, but it seems to
+ * be the easiest way to handle the port.
+ */
+#include <sys/fail.h>
+#include <sys/hash.h>
+#include <sys/sysctl.h>
+#include <fs/nfs/nfsport.h>
+#include <netinet/in_fib.h>
+#include <netinet/if_ether.h>
+#include <netinet6/ip6_var.h>
+#include <net/if_types.h>
+
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+#ifdef KDTRACE_HOOKS
+dtrace_nfsclient_attrcache_flush_probe_func_t
+ dtrace_nfscl_attrcache_flush_done_probe;
+uint32_t nfscl_attrcache_flush_done_id;
+
+dtrace_nfsclient_attrcache_get_hit_probe_func_t
+ dtrace_nfscl_attrcache_get_hit_probe;
+uint32_t nfscl_attrcache_get_hit_id;
+
+dtrace_nfsclient_attrcache_get_miss_probe_func_t
+ dtrace_nfscl_attrcache_get_miss_probe;
+uint32_t nfscl_attrcache_get_miss_id;
+
+dtrace_nfsclient_attrcache_load_probe_func_t
+ dtrace_nfscl_attrcache_load_done_probe;
+uint32_t nfscl_attrcache_load_done_id;
+#endif /* !KDTRACE_HOOKS */
+
+extern u_int32_t newnfs_true, newnfs_false, newnfs_xdrneg1;
+extern struct vop_vector newnfs_vnodeops;
+extern struct vop_vector newnfs_fifoops;
+extern uma_zone_t newnfsnode_zone;
+extern struct buf_ops buf_ops_newnfs;
+extern int ncl_pbuf_freecnt;
+extern short nfsv4_cbport;
+extern int nfscl_enablecallb;
+extern int nfs_numnfscbd;
+extern int nfscl_inited;
+struct mtx ncl_iod_mutex;
+NFSDLOCKMUTEX;
+extern struct mtx nfsrv_dslock_mtx;
+
+extern void (*ncl_call_invalcaches)(struct vnode *);
+
+SYSCTL_DECL(_vfs_nfs);
+static int ncl_fileid_maxwarnings = 10;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, fileid_maxwarnings, CTLFLAG_RWTUN,
+ &ncl_fileid_maxwarnings, 0,
+ "Limit fileid corruption warnings; 0 is off; -1 is unlimited");
+static volatile int ncl_fileid_nwarnings;
+
+static void nfscl_warn_fileid(struct nfsmount *, struct nfsvattr *,
+ struct nfsvattr *);
+
+/*
+ * Comparison function for vfs_hash functions.
+ */
+int
+newnfs_vncmpf(struct vnode *vp, void *arg)
+{
+ struct nfsfh *nfhp = (struct nfsfh *)arg;
+ struct nfsnode *np = VTONFS(vp);
+
+ if (np->n_fhp->nfh_len != nfhp->nfh_len ||
+ NFSBCMP(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len))
+ return (1);
+ return (0);
+}
+
+/*
+ * Look up a vnode/nfsnode by file handle.
+ * Callers must check for mount points!!
+ * In all cases, a pointer to a
+ * nfsnode structure is returned.
+ * This variant takes a "struct nfsfh *" as second argument and uses
+ * that structure up, either by hanging off the nfsnode or FREEing it.
+ */
+int
+nfscl_nget(struct mount *mntp, struct vnode *dvp, struct nfsfh *nfhp,
+ struct componentname *cnp, struct thread *td, struct nfsnode **npp,
+ void *stuff, int lkflags)
+{
+ struct nfsnode *np, *dnp;
+ struct vnode *vp, *nvp;
+ struct nfsv4node *newd, *oldd;
+ int error;
+ u_int hash;
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(mntp);
+ dnp = VTONFS(dvp);
+ *npp = NULL;
+
+ hash = fnv_32_buf(nfhp->nfh_fh, nfhp->nfh_len, FNV1_32_INIT);
+
+ error = vfs_hash_get(mntp, hash, lkflags,
+ td, &nvp, newnfs_vncmpf, nfhp);
+ if (error == 0 && nvp != NULL) {
+ /*
+ * I believe there is a slight chance that vgonel() could
+ * get called on this vnode between when NFSVOPLOCK() drops
+ * the VI_LOCK() and vget() acquires it again, so that it
+ * hasn't yet had v_usecount incremented. If this were to
+ * happen, the VI_DOOMED flag would be set, so check for
+ * that here. Since we now have the v_usecount incremented,
+ * we should be ok until we vrele() it, if the VI_DOOMED
+ * flag isn't set now.
+ */
+ VI_LOCK(nvp);
+ if ((nvp->v_iflag & VI_DOOMED)) {
+ VI_UNLOCK(nvp);
+ vrele(nvp);
+ error = ENOENT;
+ } else {
+ VI_UNLOCK(nvp);
+ }
+ }
+ if (error) {
+ free(nfhp, M_NFSFH);
+ return (error);
+ }
+ if (nvp != NULL) {
+ np = VTONFS(nvp);
+ /*
+ * For NFSv4, check to see if it is the same name and
+ * replace the name, if it is different.
+ */
+ oldd = newd = NULL;
+ if ((nmp->nm_flag & NFSMNT_NFSV4) && np->n_v4 != NULL &&
+ nvp->v_type == VREG &&
+ (np->n_v4->n4_namelen != cnp->cn_namelen ||
+ NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4),
+ cnp->cn_namelen) ||
+ dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen ||
+ NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len))) {
+ newd = malloc(
+ sizeof (struct nfsv4node) + dnp->n_fhp->nfh_len +
+ + cnp->cn_namelen - 1, M_NFSV4NODE, M_WAITOK);
+ NFSLOCKNODE(np);
+ if (newd != NULL && np->n_v4 != NULL && nvp->v_type == VREG
+ && (np->n_v4->n4_namelen != cnp->cn_namelen ||
+ NFSBCMP(cnp->cn_nameptr, NFS4NODENAME(np->n_v4),
+ cnp->cn_namelen) ||
+ dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen ||
+ NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len))) {
+ oldd = np->n_v4;
+ np->n_v4 = newd;
+ newd = NULL;
+ np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len;
+ np->n_v4->n4_namelen = cnp->cn_namelen;
+ NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len);
+ NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4),
+ cnp->cn_namelen);
+ }
+ NFSUNLOCKNODE(np);
+ }
+ if (newd != NULL)
+ free(newd, M_NFSV4NODE);
+ if (oldd != NULL)
+ free(oldd, M_NFSV4NODE);
+ *npp = np;
+ free(nfhp, M_NFSFH);
+ return (0);
+ }
+ np = uma_zalloc(newnfsnode_zone, M_WAITOK | M_ZERO);
+
+ error = getnewvnode(nfs_vnode_tag, mntp, &newnfs_vnodeops, &nvp);
+ if (error) {
+ uma_zfree(newnfsnode_zone, np);
+ free(nfhp, M_NFSFH);
+ return (error);
+ }
+ vp = nvp;
+ KASSERT(vp->v_bufobj.bo_bsize != 0, ("nfscl_nget: bo_bsize == 0"));
+ vp->v_bufobj.bo_ops = &buf_ops_newnfs;
+ vp->v_data = np;
+ np->n_vnode = vp;
+ /*
+ * Initialize the mutex even if the vnode is going to be a loser.
+ * This simplifies the logic in reclaim, which can then unconditionally
+ * destroy the mutex (in the case of the loser, or if hash_insert
+ * happened to return an error no special casing is needed).
+ */
+ mtx_init(&np->n_mtx, "NEWNFSnode lock", NULL, MTX_DEF | MTX_DUPOK);
+ lockinit(&np->n_excl, PVFS, "nfsupg", VLKTIMEOUT, LK_NOSHARE |
+ LK_CANRECURSE);
+
+ /*
+ * Are we getting the root? If so, make sure the vnode flags
+ * are correct
+ */
+ if ((nfhp->nfh_len == nmp->nm_fhsize) &&
+ !bcmp(nfhp->nfh_fh, nmp->nm_fh, nfhp->nfh_len)) {
+ if (vp->v_type == VNON)
+ vp->v_type = VDIR;
+ vp->v_vflag |= VV_ROOT;
+ }
+
+ vp->v_vflag |= VV_VMSIZEVNLOCK;
+
+ np->n_fhp = nfhp;
+ /*
+ * For NFSv4, we have to attach the directory file handle and
+ * file name, so that Open Ops can be done later.
+ */
+ if (nmp->nm_flag & NFSMNT_NFSV4) {
+ np->n_v4 = malloc(sizeof (struct nfsv4node)
+ + dnp->n_fhp->nfh_len + cnp->cn_namelen - 1, M_NFSV4NODE,
+ M_WAITOK);
+ np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len;
+ np->n_v4->n4_namelen = cnp->cn_namelen;
+ NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len);
+ NFSBCOPY(cnp->cn_nameptr, NFS4NODENAME(np->n_v4),
+ cnp->cn_namelen);
+ } else {
+ np->n_v4 = NULL;
+ }
+
+ /*
+ * NFS supports recursive and shared locking.
+ */
+ lockmgr(vp->v_vnlock, LK_EXCLUSIVE | LK_NOWITNESS, NULL);
+ VN_LOCK_AREC(vp);
+ VN_LOCK_ASHARE(vp);
+ error = insmntque(vp, mntp);
+ if (error != 0) {
+ *npp = NULL;
+ mtx_destroy(&np->n_mtx);
+ lockdestroy(&np->n_excl);
+ free(nfhp, M_NFSFH);
+ if (np->n_v4 != NULL)
+ free(np->n_v4, M_NFSV4NODE);
+ uma_zfree(newnfsnode_zone, np);
+ return (error);
+ }
+ error = vfs_hash_insert(vp, hash, lkflags,
+ td, &nvp, newnfs_vncmpf, nfhp);
+ if (error)
+ return (error);
+ if (nvp != NULL) {
+ *npp = VTONFS(nvp);
+ /* vfs_hash_insert() vput()'s the losing vnode */
+ return (0);
+ }
+ *npp = np;
+
+ return (0);
+}
+
+/*
+ * Another variant of nfs_nget(). This one is only used by reopen. It
+ * takes almost the same args as nfs_nget(), but only succeeds if an entry
+ * exists in the cache. (Since files should already be "open" with a
+ * vnode ref cnt on the node when reopen calls this, it should always
+ * succeed.)
+ * Also, don't get a vnode lock, since it may already be locked by some
+ * other process that is handling it. This is ok, since all other threads
+ * on the client are blocked by the nfsc_lock being exclusively held by the
+ * caller of this function.
+ */
+int
+nfscl_ngetreopen(struct mount *mntp, u_int8_t *fhp, int fhsize,
+ struct thread *td, struct nfsnode **npp)
+{
+ struct vnode *nvp;
+ u_int hash;
+ struct nfsfh *nfhp;
+ int error;
+
+ *npp = NULL;
+ /* For forced dismounts, just return error. */
+ if (NFSCL_FORCEDISM(mntp))
+ return (EINTR);
+ nfhp = malloc(sizeof (struct nfsfh) + fhsize,
+ M_NFSFH, M_WAITOK);
+ bcopy(fhp, &nfhp->nfh_fh[0], fhsize);
+ nfhp->nfh_len = fhsize;
+
+ hash = fnv_32_buf(fhp, fhsize, FNV1_32_INIT);
+
+ /*
+ * First, try to get the vnode locked, but don't block for the lock.
+ */
+ error = vfs_hash_get(mntp, hash, (LK_EXCLUSIVE | LK_NOWAIT), td, &nvp,
+ newnfs_vncmpf, nfhp);
+ if (error == 0 && nvp != NULL) {
+ NFSVOPUNLOCK(nvp, 0);
+ } else if (error == EBUSY) {
+ /*
+ * It is safe so long as a vflush() with
+ * FORCECLOSE has not been done. Since the Renew thread is
+ * stopped and the MNTK_UNMOUNTF flag is set before doing
+ * a vflush() with FORCECLOSE, we should be ok here.
+ */
+ if (NFSCL_FORCEDISM(mntp))
+ error = EINTR;
+ else {
+ vfs_hash_ref(mntp, hash, td, &nvp, newnfs_vncmpf, nfhp);
+ if (nvp == NULL) {
+ error = ENOENT;
+ } else if ((nvp->v_iflag & VI_DOOMED) != 0) {
+ error = ENOENT;
+ vrele(nvp);
+ } else {
+ error = 0;
+ }
+ }
+ }
+ free(nfhp, M_NFSFH);
+ if (error)
+ return (error);
+ if (nvp != NULL) {
+ *npp = VTONFS(nvp);
+ return (0);
+ }
+ return (EINVAL);
+}
+
+static void
+nfscl_warn_fileid(struct nfsmount *nmp, struct nfsvattr *oldnap,
+ struct nfsvattr *newnap)
+{
+ int off;
+
+ if (ncl_fileid_maxwarnings >= 0 &&
+ ncl_fileid_nwarnings >= ncl_fileid_maxwarnings)
+ return;
+ off = 0;
+ if (ncl_fileid_maxwarnings >= 0) {
+ if (++ncl_fileid_nwarnings >= ncl_fileid_maxwarnings)
+ off = 1;
+ }
+
+ printf("newnfs: server '%s' error: fileid changed. "
+ "fsid %jx:%jx: expected fileid %#jx, got %#jx. "
+ "(BROKEN NFS SERVER OR MIDDLEWARE)\n",
+ nmp->nm_com.nmcom_hostname,
+ (uintmax_t)nmp->nm_fsid[0],
+ (uintmax_t)nmp->nm_fsid[1],
+ (uintmax_t)oldnap->na_fileid,
+ (uintmax_t)newnap->na_fileid);
+
+ if (off)
+ printf("newnfs: Logged %d times about fileid corruption; "
+ "going quiet to avoid spamming logs excessively. (Limit "
+ "is: %d).\n", ncl_fileid_nwarnings,
+ ncl_fileid_maxwarnings);
+}
+
+/*
+ * Load the attribute cache (that lives in the nfsnode entry) with
+ * the attributes of the second argument and
+ * Iff vaper not NULL
+ * copy the attributes to *vaper
+ * Similar to nfs_loadattrcache(), except the attributes are passed in
+ * instead of being parsed out of the mbuf list.
+ */
+int
+nfscl_loadattrcache(struct vnode **vpp, struct nfsvattr *nap, void *nvaper,
+ void *stuff, int writeattr, int dontshrink)
+{
+ struct vnode *vp = *vpp;
+ struct vattr *vap, *nvap = &nap->na_vattr, *vaper = nvaper;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+ struct timespec mtime_save;
+ int error, force_fid_err;
+
+ error = 0;
+
+ /*
+ * If v_type == VNON it is a new node, so fill in the v_type,
+ * n_mtime fields. Check to see if it represents a special
+ * device, and if so, check for a possible alias. Once the
+ * correct vnode has been obtained, fill in the rest of the
+ * information.
+ */
+ np = VTONFS(vp);
+ NFSLOCKNODE(np);
+ if (vp->v_type != nvap->va_type) {
+ vp->v_type = nvap->va_type;
+ if (vp->v_type == VFIFO)
+ vp->v_op = &newnfs_fifoops;
+ np->n_mtime = nvap->va_mtime;
+ }
+ nmp = VFSTONFS(vp->v_mount);
+ vap = &np->n_vattr.na_vattr;
+ mtime_save = vap->va_mtime;
+ if (writeattr) {
+ np->n_vattr.na_filerev = nap->na_filerev;
+ np->n_vattr.na_size = nap->na_size;
+ np->n_vattr.na_mtime = nap->na_mtime;
+ np->n_vattr.na_ctime = nap->na_ctime;
+ np->n_vattr.na_fsid = nap->na_fsid;
+ np->n_vattr.na_mode = nap->na_mode;
+ } else {
+ force_fid_err = 0;
+ KFAIL_POINT_ERROR(DEBUG_FP, nfscl_force_fileid_warning,
+ force_fid_err);
+ /*
+ * BROKEN NFS SERVER OR MIDDLEWARE
+ *
+ * Certain NFS servers (certain old proprietary filers ca.
+ * 2006) or broken middleboxes (e.g. WAN accelerator products)
+ * will respond to GETATTR requests with results for a
+ * different fileid.
+ *
+ * The WAN accelerator we've observed not only serves stale
+ * cache results for a given file, it also occasionally serves
+ * results for wholly different files. This causes surprising
+ * problems; for example the cached size attribute of a file
+ * may truncate down and then back up, resulting in zero
+ * regions in file contents read by applications. We observed
+ * this reliably with Clang and .c files during parallel build.
+ * A pcap revealed packet fragmentation and GETATTR RPC
+ * responses with wholly wrong fileids.
+ */
+ if ((np->n_vattr.na_fileid != 0 &&
+ np->n_vattr.na_fileid != nap->na_fileid) ||
+ force_fid_err) {
+ nfscl_warn_fileid(nmp, &np->n_vattr, nap);
+ error = EIDRM;
+ goto out;
+ }
+ NFSBCOPY((caddr_t)nap, (caddr_t)&np->n_vattr,
+ sizeof (struct nfsvattr));
+ }
+
+ /*
+ * For NFSv4, if the node's fsid is not equal to the mount point's
+ * fsid, return the low order 32bits of the node's fsid. This
+ * allows getcwd(3) to work. There is a chance that the fsid might
+ * be the same as a local fs, but since this is in an NFS mount
+ * point, I don't think that will cause any problems?
+ */
+ if (NFSHASNFSV4(nmp) && NFSHASHASSETFSID(nmp) &&
+ (nmp->nm_fsid[0] != np->n_vattr.na_filesid[0] ||
+ nmp->nm_fsid[1] != np->n_vattr.na_filesid[1])) {
+ /*
+ * va_fsid needs to be set to some value derived from
+ * np->n_vattr.na_filesid that is not equal
+ * vp->v_mount->mnt_stat.f_fsid[0], so that it changes
+ * from the value used for the top level server volume
+ * in the mounted subtree.
+ */
+ vn_fsid(vp, vap);
+ if ((uint32_t)vap->va_fsid == np->n_vattr.na_filesid[0])
+ vap->va_fsid = hash32_buf(
+ np->n_vattr.na_filesid, 2 * sizeof(uint64_t), 0);
+ } else
+ vn_fsid(vp, vap);
+ np->n_attrstamp = time_second;
+ if (vap->va_size != np->n_size) {
+ if (vap->va_type == VREG) {
+ if (dontshrink && vap->va_size < np->n_size) {
+ /*
+ * We've been told not to shrink the file;
+ * zero np->n_attrstamp to indicate that
+ * the attributes are stale.
+ */
+ vap->va_size = np->n_size;
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ } else if (np->n_flag & NMODIFIED) {
+ /*
+ * We've modified the file: Use the larger
+ * of our size, and the server's size.
+ */
+ if (vap->va_size < np->n_size) {
+ vap->va_size = np->n_size;
+ } else {
+ np->n_size = vap->va_size;
+ np->n_flag |= NSIZECHANGED;
+ }
+ } else {
+ np->n_size = vap->va_size;
+ np->n_flag |= NSIZECHANGED;
+ }
+ } else {
+ np->n_size = vap->va_size;
+ }
+ }
+ /*
+ * The following checks are added to prevent a race between (say)
+ * a READDIR+ and a WRITE.
+ * READDIR+, WRITE requests sent out.
+ * READDIR+ resp, WRITE resp received on client.
+ * However, the WRITE resp was handled before the READDIR+ resp
+ * causing the post op attrs from the write to be loaded first
+ * and the attrs from the READDIR+ to be loaded later. If this
+ * happens, we have stale attrs loaded into the attrcache.
+ * We detect this by for the mtime moving back. We invalidate the
+ * attrcache when this happens.
+ */
+ if (timespeccmp(&mtime_save, &vap->va_mtime, >)) {
+ /* Size changed or mtime went backwards */
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ }
+ if (vaper != NULL) {
+ NFSBCOPY((caddr_t)vap, (caddr_t)vaper, sizeof(*vap));
+ if (np->n_flag & NCHG) {
+ if (np->n_flag & NACC)
+ vaper->va_atime = np->n_atim;
+ if (np->n_flag & NUPD)
+ vaper->va_mtime = np->n_mtim;
+ }
+ }
+
+out:
+#ifdef KDTRACE_HOOKS
+ if (np->n_attrstamp != 0)
+ KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error);
+#endif
+ (void)ncl_pager_setsize(vp, NULL);
+ return (error);
+}
+
+/*
+ * Call vnode_pager_setsize() if the size of the node changed, as
+ * recorded in nfsnode vs. v_object, or delay the call if notifying
+ * the pager is not possible at the moment.
+ *
+ * If nsizep is non-NULL, the call is delayed and the new node size is
+ * provided. Caller should itself call vnode_pager_setsize() if
+ * function returned true. If nsizep is NULL, function tries to call
+ * vnode_pager_setsize() itself if needed and possible, and the nfs
+ * node is unlocked unconditionally, the return value is not useful.
+ */
+bool
+ncl_pager_setsize(struct vnode *vp, u_quad_t *nsizep)
+{
+ struct nfsnode *np;
+ vm_object_t object;
+ struct vattr *vap;
+ u_quad_t nsize;
+ bool setnsize;
+
+ np = VTONFS(vp);
+ NFSASSERTNODE(np);
+
+ vap = &np->n_vattr.na_vattr;
+ nsize = vap->va_size;
+ object = vp->v_object;
+ setnsize = false;
+
+ if (object != NULL && nsize != object->un_pager.vnp.vnp_size) {
+ if (VOP_ISLOCKED(vp) == LK_EXCLUSIVE)
+ setnsize = true;
+ else
+ np->n_flag |= NVNSETSZSKIP;
+ }
+ if (nsizep == NULL) {
+ NFSUNLOCKNODE(np);
+ if (setnsize)
+ vnode_pager_setsize(vp, nsize);
+ setnsize = false;
+ } else {
+ *nsizep = nsize;
+ }
+ return (setnsize);
+}
+
+/*
+ * Fill in the client id name. For these bytes:
+ * 1 - they must be unique
+ * 2 - they should be persistent across client reboots
+ * 1 is more critical than 2
+ * Use the mount point's unique id plus either the uuid or, if that
+ * isn't set, random junk.
+ */
+void
+nfscl_fillclid(u_int64_t clval, char *uuid, u_int8_t *cp, u_int16_t idlen)
+{
+ int uuidlen;
+
+ /*
+ * First, put in the 64bit mount point identifier.
+ */
+ if (idlen >= sizeof (u_int64_t)) {
+ NFSBCOPY((caddr_t)&clval, cp, sizeof (u_int64_t));
+ cp += sizeof (u_int64_t);
+ idlen -= sizeof (u_int64_t);
+ }
+
+ /*
+ * If uuid is non-zero length, use it.
+ */
+ uuidlen = strlen(uuid);
+ if (uuidlen > 0 && idlen >= uuidlen) {
+ NFSBCOPY(uuid, cp, uuidlen);
+ cp += uuidlen;
+ idlen -= uuidlen;
+ }
+
+ /*
+ * This only normally happens if the uuid isn't set.
+ */
+ while (idlen > 0) {
+ *cp++ = (u_int8_t)(arc4random() % 256);
+ idlen--;
+ }
+}
+
+/*
+ * Fill in a lock owner name. For now, pid + the process's creation time.
+ */
+void
+nfscl_filllockowner(void *id, u_int8_t *cp, int flags)
+{
+ union {
+ u_int32_t lval;
+ u_int8_t cval[4];
+ } tl;
+ struct proc *p;
+
+ if (id == NULL) {
+ /* Return the single open_owner of all 0 bytes. */
+ bzero(cp, NFSV4CL_LOCKNAMELEN);
+ return;
+ }
+ if ((flags & F_POSIX) != 0) {
+ p = (struct proc *)id;
+ tl.lval = p->p_pid;
+ *cp++ = tl.cval[0];
+ *cp++ = tl.cval[1];
+ *cp++ = tl.cval[2];
+ *cp++ = tl.cval[3];
+ tl.lval = p->p_stats->p_start.tv_sec;
+ *cp++ = tl.cval[0];
+ *cp++ = tl.cval[1];
+ *cp++ = tl.cval[2];
+ *cp++ = tl.cval[3];
+ tl.lval = p->p_stats->p_start.tv_usec;
+ *cp++ = tl.cval[0];
+ *cp++ = tl.cval[1];
+ *cp++ = tl.cval[2];
+ *cp = tl.cval[3];
+ } else if ((flags & F_FLOCK) != 0) {
+ bcopy(&id, cp, sizeof(id));
+ bzero(&cp[sizeof(id)], NFSV4CL_LOCKNAMELEN - sizeof(id));
+ } else {
+ printf("nfscl_filllockowner: not F_POSIX or F_FLOCK\n");
+ bzero(cp, NFSV4CL_LOCKNAMELEN);
+ }
+}
+
+/*
+ * Find the parent process for the thread passed in as an argument.
+ * If none exists, return NULL, otherwise return a thread for the parent.
+ * (Can be any of the threads, since it is only used for td->td_proc.)
+ */
+NFSPROC_T *
+nfscl_getparent(struct thread *td)
+{
+ struct proc *p;
+ struct thread *ptd;
+
+ if (td == NULL)
+ return (NULL);
+ p = td->td_proc;
+ if (p->p_pid == 0)
+ return (NULL);
+ p = p->p_pptr;
+ if (p == NULL)
+ return (NULL);
+ ptd = TAILQ_FIRST(&p->p_threads);
+ return (ptd);
+}
+
+/*
+ * Start up the renew kernel thread.
+ */
+static void
+start_nfscl(void *arg)
+{
+ struct nfsclclient *clp;
+ struct thread *td;
+
+ clp = (struct nfsclclient *)arg;
+ td = TAILQ_FIRST(&clp->nfsc_renewthread->p_threads);
+ nfscl_renewthread(clp, td);
+ kproc_exit(0);
+}
+
+void
+nfscl_start_renewthread(struct nfsclclient *clp)
+{
+
+ kproc_create(start_nfscl, (void *)clp, &clp->nfsc_renewthread, 0, 0,
+ "nfscl");
+}
+
+/*
+ * Handle wcc_data.
+ * For NFSv4, it assumes that nfsv4_wccattr() was used to set up the getattr
+ * as the first Op after PutFH.
+ * (For NFSv4, the postop attributes are after the Op, so they can't be
+ * parsed here. A separate call to nfscl_postop_attr() is required.)
+ */
+int
+nfscl_wcc_data(struct nfsrv_descript *nd, struct vnode *vp,
+ struct nfsvattr *nap, int *flagp, int *wccflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsvattr nfsva;
+ int error = 0;
+
+ if (wccflagp != NULL)
+ *wccflagp = 0;
+ if (nd->nd_flag & ND_NFSV3) {
+ *flagp = 0;
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (*tl == newnfs_true) {
+ NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED);
+ if (wccflagp != NULL) {
+ NFSLOCKNODE(np);
+ *wccflagp = (np->n_mtime.tv_sec ==
+ fxdr_unsigned(u_int32_t, *(tl + 2)) &&
+ np->n_mtime.tv_nsec ==
+ fxdr_unsigned(u_int32_t, *(tl + 3)));
+ NFSUNLOCKNODE(np);
+ }
+ }
+ error = nfscl_postop_attr(nd, nap, flagp, stuff);
+ if (wccflagp != NULL && *flagp == 0)
+ *wccflagp = 0;
+ } else if ((nd->nd_flag & (ND_NOMOREDATA | ND_NFSV4 | ND_V4WCCATTR))
+ == (ND_NFSV4 | ND_V4WCCATTR)) {
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, NULL, NULL, NULL);
+ if (error)
+ return (error);
+ /*
+ * Get rid of Op# and status for next op.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*++tl)
+ nd->nd_flag |= ND_NOMOREDATA;
+ if (wccflagp != NULL &&
+ nfsva.na_vattr.va_mtime.tv_sec != 0) {
+ NFSLOCKNODE(np);
+ *wccflagp = (np->n_mtime.tv_sec ==
+ nfsva.na_vattr.va_mtime.tv_sec &&
+ np->n_mtime.tv_nsec ==
+ nfsva.na_vattr.va_mtime.tv_sec);
+ NFSUNLOCKNODE(np);
+ }
+ }
+nfsmout:
+ return (error);
+}
+
+/*
+ * Get postop attributes.
+ */
+int
+nfscl_postop_attr(struct nfsrv_descript *nd, struct nfsvattr *nap, int *retp,
+ void *stuff)
+{
+ u_int32_t *tl;
+ int error = 0;
+
+ *retp = 0;
+ if (nd->nd_flag & ND_NOMOREDATA)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ *retp = fxdr_unsigned(int, *tl);
+ } else if (nd->nd_flag & ND_NFSV4) {
+ /*
+ * For NFSv4, the postop attr are at the end, so no point
+ * in looking if nd_repstat != 0.
+ */
+ if (!nd->nd_repstat) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1))
+ /* should never happen since nd_repstat != 0 */
+ nd->nd_flag |= ND_NOMOREDATA;
+ else
+ *retp = 1;
+ }
+ } else if (!nd->nd_repstat) {
+ /* For NFSv2, the attributes are here iff nd_repstat == 0 */
+ *retp = 1;
+ }
+ if (*retp) {
+ error = nfsm_loadattr(nd, nap);
+ if (error)
+ *retp = 0;
+ }
+nfsmout:
+ return (error);
+}
+
+/*
+ * nfscl_request() - mostly a wrapper for newnfs_request().
+ */
+int
+nfscl_request(struct nfsrv_descript *nd, struct vnode *vp, NFSPROC_T *p,
+ struct ucred *cred, void *stuff)
+{
+ int ret, vers;
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vp->v_mount);
+ if (nd->nd_flag & ND_NFSV4)
+ vers = NFS_VER4;
+ else if (nd->nd_flag & ND_NFSV3)
+ vers = NFS_VER3;
+ else
+ vers = NFS_VER2;
+ ret = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred,
+ NFS_PROG, vers, NULL, 1, NULL, NULL);
+ return (ret);
+}
+
+/*
+ * fill in this bsden's variant of statfs using nfsstatfs.
+ */
+void
+nfscl_loadsbinfo(struct nfsmount *nmp, struct nfsstatfs *sfp, void *statfs)
+{
+ struct statfs *sbp = (struct statfs *)statfs;
+
+ if (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) {
+ sbp->f_bsize = NFS_FABLKSIZE;
+ sbp->f_blocks = sfp->sf_tbytes / NFS_FABLKSIZE;
+ sbp->f_bfree = sfp->sf_fbytes / NFS_FABLKSIZE;
+ /*
+ * Although sf_abytes is uint64_t and f_bavail is int64_t,
+ * the value after dividing by NFS_FABLKSIZE is small
+ * enough that it will fit in 63bits, so it is ok to
+ * assign it to f_bavail without fear that it will become
+ * negative.
+ */
+ sbp->f_bavail = sfp->sf_abytes / NFS_FABLKSIZE;
+ sbp->f_files = sfp->sf_tfiles;
+ /* Since f_ffree is int64_t, clip it to 63bits. */
+ if (sfp->sf_ffiles > INT64_MAX)
+ sbp->f_ffree = INT64_MAX;
+ else
+ sbp->f_ffree = sfp->sf_ffiles;
+ } else if ((nmp->nm_flag & NFSMNT_NFSV4) == 0) {
+ /*
+ * The type casts to (int32_t) ensure that this code is
+ * compatible with the old NFS client, in that it will
+ * propagate bit31 to the high order bits. This may or may
+ * not be correct for NFSv2, but since it is a legacy
+ * environment, I'd rather retain backwards compatibility.
+ */
+ sbp->f_bsize = (int32_t)sfp->sf_bsize;
+ sbp->f_blocks = (int32_t)sfp->sf_blocks;
+ sbp->f_bfree = (int32_t)sfp->sf_bfree;
+ sbp->f_bavail = (int32_t)sfp->sf_bavail;
+ sbp->f_files = 0;
+ sbp->f_ffree = 0;
+ }
+}
+
+/*
+ * Use the fsinfo stuff to update the mount point.
+ */
+void
+nfscl_loadfsinfo(struct nfsmount *nmp, struct nfsfsinfo *fsp)
+{
+
+ if ((nmp->nm_wsize == 0 || fsp->fs_wtpref < nmp->nm_wsize) &&
+ fsp->fs_wtpref >= NFS_FABLKSIZE)
+ nmp->nm_wsize = (fsp->fs_wtpref + NFS_FABLKSIZE - 1) &
+ ~(NFS_FABLKSIZE - 1);
+ if (fsp->fs_wtmax < nmp->nm_wsize && fsp->fs_wtmax > 0) {
+ nmp->nm_wsize = fsp->fs_wtmax & ~(NFS_FABLKSIZE - 1);
+ if (nmp->nm_wsize == 0)
+ nmp->nm_wsize = fsp->fs_wtmax;
+ }
+ if (nmp->nm_wsize < NFS_FABLKSIZE)
+ nmp->nm_wsize = NFS_FABLKSIZE;
+ if ((nmp->nm_rsize == 0 || fsp->fs_rtpref < nmp->nm_rsize) &&
+ fsp->fs_rtpref >= NFS_FABLKSIZE)
+ nmp->nm_rsize = (fsp->fs_rtpref + NFS_FABLKSIZE - 1) &
+ ~(NFS_FABLKSIZE - 1);
+ if (fsp->fs_rtmax < nmp->nm_rsize && fsp->fs_rtmax > 0) {
+ nmp->nm_rsize = fsp->fs_rtmax & ~(NFS_FABLKSIZE - 1);
+ if (nmp->nm_rsize == 0)
+ nmp->nm_rsize = fsp->fs_rtmax;
+ }
+ if (nmp->nm_rsize < NFS_FABLKSIZE)
+ nmp->nm_rsize = NFS_FABLKSIZE;
+ if ((nmp->nm_readdirsize == 0 || fsp->fs_dtpref < nmp->nm_readdirsize)
+ && fsp->fs_dtpref >= NFS_DIRBLKSIZ)
+ nmp->nm_readdirsize = (fsp->fs_dtpref + NFS_DIRBLKSIZ - 1) &
+ ~(NFS_DIRBLKSIZ - 1);
+ if (fsp->fs_rtmax < nmp->nm_readdirsize && fsp->fs_rtmax > 0) {
+ nmp->nm_readdirsize = fsp->fs_rtmax & ~(NFS_DIRBLKSIZ - 1);
+ if (nmp->nm_readdirsize == 0)
+ nmp->nm_readdirsize = fsp->fs_rtmax;
+ }
+ if (nmp->nm_readdirsize < NFS_DIRBLKSIZ)
+ nmp->nm_readdirsize = NFS_DIRBLKSIZ;
+ if (fsp->fs_maxfilesize > 0 &&
+ fsp->fs_maxfilesize < nmp->nm_maxfilesize)
+ nmp->nm_maxfilesize = fsp->fs_maxfilesize;
+ nmp->nm_mountp->mnt_stat.f_iosize = newnfs_iosize(nmp);
+ nmp->nm_state |= NFSSTA_GOTFSINFO;
+}
+
+/*
+ * Lookups source address which should be used to communicate with
+ * @nmp and stores it inside @pdst.
+ *
+ * Returns 0 on success.
+ */
+u_int8_t *
+nfscl_getmyip(struct nfsmount *nmp, struct in6_addr *paddr, int *isinet6p)
+{
+#if defined(INET6) || defined(INET)
+ int error, fibnum;
+
+ fibnum = curthread->td_proc->p_fibnum;
+#endif
+#ifdef INET
+ if (nmp->nm_nam->sa_family == AF_INET) {
+ struct sockaddr_in *sin;
+ struct nhop4_extended nh_ext;
+
+ sin = (struct sockaddr_in *)nmp->nm_nam;
+ CURVNET_SET(CRED_TO_VNET(nmp->nm_sockreq.nr_cred));
+ error = fib4_lookup_nh_ext(fibnum, sin->sin_addr, 0, 0,
+ &nh_ext);
+ CURVNET_RESTORE();
+ if (error != 0)
+ return (NULL);
+
+ if (IN_LOOPBACK(ntohl(nh_ext.nh_src.s_addr))) {
+ /* Ignore loopback addresses */
+ return (NULL);
+ }
+
+ *isinet6p = 0;
+ *((struct in_addr *)paddr) = nh_ext.nh_src;
+
+ return (u_int8_t *)paddr;
+ }
+#endif
+#ifdef INET6
+ if (nmp->nm_nam->sa_family == AF_INET6) {
+ struct sockaddr_in6 *sin6;
+
+ sin6 = (struct sockaddr_in6 *)nmp->nm_nam;
+
+ CURVNET_SET(CRED_TO_VNET(nmp->nm_sockreq.nr_cred));
+ error = in6_selectsrc_addr(fibnum, &sin6->sin6_addr,
+ sin6->sin6_scope_id, NULL, paddr, NULL);
+ CURVNET_RESTORE();
+ if (error != 0)
+ return (NULL);
+
+ if (IN6_IS_ADDR_LOOPBACK(paddr))
+ return (NULL);
+
+ /* Scope is embedded in */
+ *isinet6p = 1;
+
+ return (u_int8_t *)paddr;
+ }
+#endif
+ return (NULL);
+}
+
+/*
+ * Copy NFS uid, gids from the cred structure.
+ */
+void
+newnfs_copyincred(struct ucred *cr, struct nfscred *nfscr)
+{
+ int i;
+
+ KASSERT(cr->cr_ngroups >= 0,
+ ("newnfs_copyincred: negative cr_ngroups"));
+ nfscr->nfsc_uid = cr->cr_uid;
+ nfscr->nfsc_ngroups = MIN(cr->cr_ngroups, NFS_MAXGRPS + 1);
+ for (i = 0; i < nfscr->nfsc_ngroups; i++)
+ nfscr->nfsc_groups[i] = cr->cr_groups[i];
+}
+
+
+/*
+ * Do any client specific initialization.
+ */
+void
+nfscl_init(void)
+{
+ static int inited = 0;
+
+ if (inited)
+ return;
+ inited = 1;
+ nfscl_inited = 1;
+ ncl_pbuf_freecnt = nswbuf / 2 + 1;
+}
+
+/*
+ * Check each of the attributes to be set, to ensure they aren't already
+ * the correct value. Disable setting ones already correct.
+ */
+int
+nfscl_checksattr(struct vattr *vap, struct nfsvattr *nvap)
+{
+
+ if (vap->va_mode != (mode_t)VNOVAL) {
+ if (vap->va_mode == nvap->na_mode)
+ vap->va_mode = (mode_t)VNOVAL;
+ }
+ if (vap->va_uid != (uid_t)VNOVAL) {
+ if (vap->va_uid == nvap->na_uid)
+ vap->va_uid = (uid_t)VNOVAL;
+ }
+ if (vap->va_gid != (gid_t)VNOVAL) {
+ if (vap->va_gid == nvap->na_gid)
+ vap->va_gid = (gid_t)VNOVAL;
+ }
+ if (vap->va_size != VNOVAL) {
+ if (vap->va_size == nvap->na_size)
+ vap->va_size = VNOVAL;
+ }
+
+ /*
+ * We are normally called with only a partially initialized
+ * VAP. Since the NFSv3 spec says that server may use the
+ * file attributes to store the verifier, the spec requires
+ * us to do a SETATTR RPC. FreeBSD servers store the verifier
+ * in atime, but we can't really assume that all servers will
+ * so we ensure that our SETATTR sets both atime and mtime.
+ * Set the VA_UTIMES_NULL flag for this case, so that
+ * the server's time will be used. This is needed to
+ * work around a bug in some Solaris servers, where
+ * setting the time TOCLIENT causes the Setattr RPC
+ * to return NFS_OK, but not set va_mode.
+ */
+ if (vap->va_mtime.tv_sec == VNOVAL) {
+ vfs_timestamp(&vap->va_mtime);
+ vap->va_vaflags |= VA_UTIMES_NULL;
+ }
+ if (vap->va_atime.tv_sec == VNOVAL)
+ vap->va_atime = vap->va_mtime;
+ return (1);
+}
+
+/*
+ * Map nfsv4 errors to errno.h errors.
+ * The uid and gid arguments are only used for NFSERR_BADOWNER and that
+ * error should only be returned for the Open, Create and Setattr Ops.
+ * As such, most calls can just pass in 0 for those arguments.
+ */
+APPLESTATIC int
+nfscl_maperr(struct thread *td, int error, uid_t uid, gid_t gid)
+{
+ struct proc *p;
+
+ if (error < 10000 || error >= NFSERR_STALEWRITEVERF)
+ return (error);
+ if (td != NULL)
+ p = td->td_proc;
+ else
+ p = NULL;
+ switch (error) {
+ case NFSERR_BADOWNER:
+ tprintf(p, LOG_INFO,
+ "No name and/or group mapping for uid,gid:(%d,%d)\n",
+ uid, gid);
+ return (EPERM);
+ case NFSERR_BADNAME:
+ case NFSERR_BADCHAR:
+ printf("nfsv4 char/name not handled by server\n");
+ return (ENOENT);
+ case NFSERR_STALECLIENTID:
+ case NFSERR_STALESTATEID:
+ case NFSERR_EXPIRED:
+ case NFSERR_BADSTATEID:
+ case NFSERR_BADSESSION:
+ printf("nfsv4 recover err returned %d\n", error);
+ return (EIO);
+ case NFSERR_BADHANDLE:
+ case NFSERR_SERVERFAULT:
+ case NFSERR_BADTYPE:
+ case NFSERR_FHEXPIRED:
+ case NFSERR_RESOURCE:
+ case NFSERR_MOVED:
+ case NFSERR_NOFILEHANDLE:
+ case NFSERR_MINORVERMISMATCH:
+ case NFSERR_OLDSTATEID:
+ case NFSERR_BADSEQID:
+ case NFSERR_LEASEMOVED:
+ case NFSERR_RECLAIMBAD:
+ case NFSERR_BADXDR:
+ case NFSERR_OPILLEGAL:
+ printf("nfsv4 client/server protocol prob err=%d\n",
+ error);
+ return (EIO);
+ default:
+ tprintf(p, LOG_INFO, "nfsv4 err=%d\n", error);
+ return (EIO);
+ };
+}
+
+/*
+ * Check to see if the process for this owner exists. Return 1 if it doesn't
+ * and 0 otherwise.
+ */
+int
+nfscl_procdoesntexist(u_int8_t *own)
+{
+ union {
+ u_int32_t lval;
+ u_int8_t cval[4];
+ } tl;
+ struct proc *p;
+ pid_t pid;
+ int i, ret = 0;
+
+ /* For the single open_owner of all 0 bytes, just return 0. */
+ for (i = 0; i < NFSV4CL_LOCKNAMELEN; i++)
+ if (own[i] != 0)
+ break;
+ if (i == NFSV4CL_LOCKNAMELEN)
+ return (0);
+
+ tl.cval[0] = *own++;
+ tl.cval[1] = *own++;
+ tl.cval[2] = *own++;
+ tl.cval[3] = *own++;
+ pid = tl.lval;
+ p = pfind_locked(pid);
+ if (p == NULL)
+ return (1);
+ if (p->p_stats == NULL) {
+ PROC_UNLOCK(p);
+ return (0);
+ }
+ tl.cval[0] = *own++;
+ tl.cval[1] = *own++;
+ tl.cval[2] = *own++;
+ tl.cval[3] = *own++;
+ if (tl.lval != p->p_stats->p_start.tv_sec) {
+ ret = 1;
+ } else {
+ tl.cval[0] = *own++;
+ tl.cval[1] = *own++;
+ tl.cval[2] = *own++;
+ tl.cval[3] = *own;
+ if (tl.lval != p->p_stats->p_start.tv_usec)
+ ret = 1;
+ }
+ PROC_UNLOCK(p);
+ return (ret);
+}
+
+/*
+ * - nfs pseudo system call for the client
+ */
+/*
+ * MPSAFE
+ */
+static int
+nfssvc_nfscl(struct thread *td, struct nfssvc_args *uap)
+{
+ struct file *fp;
+ struct nfscbd_args nfscbdarg;
+ struct nfsd_nfscbd_args nfscbdarg2;
+ struct nameidata nd;
+ struct nfscl_dumpmntopts dumpmntopts;
+ cap_rights_t rights;
+ char *buf;
+ int error;
+ struct mount *mp;
+ struct nfsmount *nmp;
+
+ if (uap->flag & NFSSVC_CBADDSOCK) {
+ error = copyin(uap->argp, (caddr_t)&nfscbdarg, sizeof(nfscbdarg));
+ if (error)
+ return (error);
+ /*
+ * Since we don't know what rights might be required,
+ * pretend that we need them all. It is better to be too
+ * careful than too reckless.
+ */
+ error = fget(td, nfscbdarg.sock,
+ cap_rights_init(&rights, CAP_SOCK_CLIENT), &fp);
+ if (error)
+ return (error);
+ if (fp->f_type != DTYPE_SOCKET) {
+ fdrop(fp, td);
+ return (EPERM);
+ }
+ error = nfscbd_addsock(fp);
+ fdrop(fp, td);
+ if (!error && nfscl_enablecallb == 0) {
+ nfsv4_cbport = nfscbdarg.port;
+ nfscl_enablecallb = 1;
+ }
+ } else if (uap->flag & NFSSVC_NFSCBD) {
+ if (uap->argp == NULL)
+ return (EINVAL);
+ error = copyin(uap->argp, (caddr_t)&nfscbdarg2,
+ sizeof(nfscbdarg2));
+ if (error)
+ return (error);
+ error = nfscbd_nfsd(td, &nfscbdarg2);
+ } else if (uap->flag & NFSSVC_DUMPMNTOPTS) {
+ error = copyin(uap->argp, &dumpmntopts, sizeof(dumpmntopts));
+ if (error == 0 && (dumpmntopts.ndmnt_blen < 256 ||
+ dumpmntopts.ndmnt_blen > 1024))
+ error = EINVAL;
+ if (error == 0)
+ error = nfsrv_lookupfilename(&nd,
+ dumpmntopts.ndmnt_fname, td);
+ if (error == 0 && strcmp(nd.ni_vp->v_mount->mnt_vfc->vfc_name,
+ "nfs") != 0) {
+ vput(nd.ni_vp);
+ error = EINVAL;
+ }
+ if (error == 0) {
+ buf = malloc(dumpmntopts.ndmnt_blen, M_TEMP, M_WAITOK);
+ nfscl_retopts(VFSTONFS(nd.ni_vp->v_mount), buf,
+ dumpmntopts.ndmnt_blen);
+ vput(nd.ni_vp);
+ error = copyout(buf, dumpmntopts.ndmnt_buf,
+ dumpmntopts.ndmnt_blen);
+ free(buf, M_TEMP);
+ }
+ } else if (uap->flag & NFSSVC_FORCEDISM) {
+ buf = malloc(MNAMELEN + 1, M_TEMP, M_WAITOK);
+ error = copyinstr(uap->argp, buf, MNAMELEN + 1, NULL);
+ if (error == 0) {
+ nmp = NULL;
+ mtx_lock(&mountlist_mtx);
+ TAILQ_FOREACH(mp, &mountlist, mnt_list) {
+ if (strcmp(mp->mnt_stat.f_mntonname, buf) ==
+ 0 && strcmp(mp->mnt_stat.f_fstypename,
+ "nfs") == 0 && mp->mnt_data != NULL) {
+ nmp = VFSTONFS(mp);
+ NFSDDSLOCK();
+ if (nfsv4_findmirror(nmp) != NULL) {
+ NFSDDSUNLOCK();
+ error = ENXIO;
+ nmp = NULL;
+ break;
+ }
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_privflag &
+ NFSMNTP_FORCEDISM) == 0) {
+ nmp->nm_privflag |=
+ (NFSMNTP_FORCEDISM |
+ NFSMNTP_CANCELRPCS);
+ mtx_unlock(&nmp->nm_mtx);
+ } else {
+ mtx_unlock(&nmp->nm_mtx);
+ nmp = NULL;
+ }
+ NFSDDSUNLOCK();
+ break;
+ }
+ }
+ mtx_unlock(&mountlist_mtx);
+
+ if (nmp != NULL) {
+ /*
+ * Call newnfs_nmcancelreqs() to cause
+ * any RPCs in progress on the mount point to
+ * fail.
+ * This will cause any process waiting for an
+ * RPC to complete while holding a vnode lock
+ * on the mounted-on vnode (such as "df" or
+ * a non-forced "umount") to fail.
+ * This will unlock the mounted-on vnode so
+ * a forced dismount can succeed.
+ * Then clear NFSMNTP_CANCELRPCS and wakeup(),
+ * so that nfs_unmount() can complete.
+ */
+ newnfs_nmcancelreqs(nmp);
+ mtx_lock(&nmp->nm_mtx);
+ nmp->nm_privflag &= ~NFSMNTP_CANCELRPCS;
+ wakeup(nmp);
+ mtx_unlock(&nmp->nm_mtx);
+ } else if (error == 0)
+ error = EINVAL;
+ }
+ free(buf, M_TEMP);
+ } else {
+ error = EINVAL;
+ }
+ return (error);
+}
+
+extern int (*nfsd_call_nfscl)(struct thread *, struct nfssvc_args *);
+
+/*
+ * Called once to initialize data structures...
+ */
+static int
+nfscl_modevent(module_t mod, int type, void *data)
+{
+ int error = 0;
+ static int loaded = 0;
+
+ switch (type) {
+ case MOD_LOAD:
+ if (loaded)
+ return (0);
+ newnfs_portinit();
+ mtx_init(&ncl_iod_mutex, "ncl_iod_mutex", NULL, MTX_DEF);
+ nfscl_init();
+ NFSD_LOCK();
+ nfsrvd_cbinit(0);
+ NFSD_UNLOCK();
+ ncl_call_invalcaches = ncl_invalcaches;
+ nfsd_call_nfscl = nfssvc_nfscl;
+ loaded = 1;
+ break;
+
+ case MOD_UNLOAD:
+ if (nfs_numnfscbd != 0) {
+ error = EBUSY;
+ break;
+ }
+
+ /*
+ * XXX: Unloading of nfscl module is unsupported.
+ */
+#if 0
+ ncl_call_invalcaches = NULL;
+ nfsd_call_nfscl = NULL;
+ /* and get rid of the mutexes */
+ mtx_destroy(&ncl_iod_mutex);
+ loaded = 0;
+ break;
+#else
+ /* FALLTHROUGH */
+#endif
+ default:
+ error = EOPNOTSUPP;
+ break;
+ }
+ return error;
+}
+static moduledata_t nfscl_mod = {
+ "nfscl",
+ nfscl_modevent,
+ NULL,
+};
+DECLARE_MODULE(nfscl, nfscl_mod, SI_SUB_VFS, SI_ORDER_FIRST);
+
+/* So that loader and kldload(2) can find us, wherever we are.. */
+MODULE_VERSION(nfscl, 1);
+MODULE_DEPEND(nfscl, nfscommon, 1, 1, 1);
+MODULE_DEPEND(nfscl, krpc, 1, 1, 1);
+MODULE_DEPEND(nfscl, nfssvc, 1, 1, 1);
+MODULE_DEPEND(nfscl, nfslock, 1, 1, 1);
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clrpcops.c b/freebsd/sys/fs/nfsclient/nfs_clrpcops.c
new file mode 100644
index 0000000..8feb2a8
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clrpcops.c
@@ -0,0 +1,7666 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Rpc op calls, generally called from the vnode op calls or through the
+ * buffer cache, for NFS v2, 3 and 4.
+ * These do not normally make any changes to vnode arguments or use
+ * structures that might change between the VFS variants. The returned
+ * arguments are all at the end, after the NFSPROC_T *p one.
+ */
+
+#ifndef APPLEKEXT
+#include "opt_inet6.h"
+
+#include <fs/nfs/nfsport.h>
+#include <sys/sysctl.h>
+#include <sys/taskqueue.h>
+
+SYSCTL_DECL(_vfs_nfs);
+
+static int nfsignore_eexist = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, ignore_eexist, CTLFLAG_RW,
+ &nfsignore_eexist, 0, "NFS ignore EEXIST replies for mkdir/symlink");
+
+static int nfscl_dssameconn = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, dssameconn, CTLFLAG_RW,
+ &nfscl_dssameconn, 0, "Use same TCP connection to multiple DSs");
+
+/*
+ * Global variables
+ */
+extern int nfs_numnfscbd;
+extern struct timeval nfsboottime;
+extern u_int32_t newnfs_false, newnfs_true;
+extern nfstype nfsv34_type[9];
+extern int nfsrv_useacl;
+extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN];
+extern int nfscl_debuglevel;
+extern int nfs_pnfsiothreads;
+NFSCLSTATEMUTEX;
+int nfstest_outofseq = 0;
+int nfscl_assumeposixlocks = 1;
+int nfscl_enablecallb = 0;
+short nfsv4_cbport = NFSV4_CBPORT;
+int nfstest_openallsetattr = 0;
+#endif /* !APPLEKEXT */
+
+#define DIRHDSIZ offsetof(struct dirent, d_name)
+
+/*
+ * nfscl_getsameserver() can return one of three values:
+ * NFSDSP_USETHISSESSION - Use this session for the DS.
+ * NFSDSP_SEQTHISSESSION - Use the nfsclds_sequence field of this dsp for new
+ * session.
+ * NFSDSP_NOTFOUND - No matching server was found.
+ */
+enum nfsclds_state {
+ NFSDSP_USETHISSESSION = 0,
+ NFSDSP_SEQTHISSESSION = 1,
+ NFSDSP_NOTFOUND = 2,
+};
+
+/*
+ * Do a write RPC on a DS data file, using this structure for the arguments,
+ * so that this function can be executed by a separate kernel process.
+ */
+struct nfsclwritedsdorpc {
+ int done;
+ int inprog;
+ struct task tsk;
+ struct vnode *vp;
+ int iomode;
+ int must_commit;
+ nfsv4stateid_t *stateidp;
+ struct nfsclds *dsp;
+ uint64_t off;
+ int len;
+ struct nfsfh *fhp;
+ struct mbuf *m;
+ int vers;
+ int minorvers;
+ struct ucred *cred;
+ NFSPROC_T *p;
+ int err;
+};
+
+static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *);
+static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *,
+ nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *);
+static int nfsrpc_writerpc(vnode_t , struct uio *, int *, int *,
+ struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *,
+ void *);
+static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *,
+ nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *,
+ struct nfsvattr *, struct nfsfh **, int *, int *, void *);
+static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *,
+ nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *,
+ NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *,
+ int *, void *, int *);
+static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *,
+ struct nfscllockowner *, u_int64_t, u_int64_t,
+ u_int32_t, struct ucred *, NFSPROC_T *, int);
+static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *,
+ struct acl *, nfsv4stateid_t *, void *);
+static int nfsrpc_getlayout(struct nfsmount *, vnode_t, struct nfsfh *, int,
+ uint32_t *, nfsv4stateid_t *, uint64_t, struct nfscllayout **,
+ struct ucred *, NFSPROC_T *);
+static int nfsrpc_fillsa(struct nfsmount *, struct sockaddr_in *,
+ struct sockaddr_in6 *, sa_family_t, int, struct nfsclds **, NFSPROC_T *);
+static void nfscl_initsessionslots(struct nfsclsession *);
+static int nfscl_doflayoutio(vnode_t, struct uio *, int *, int *, int *,
+ nfsv4stateid_t *, int, struct nfscldevinfo *, struct nfscllayout *,
+ struct nfsclflayout *, uint64_t, uint64_t, int, struct ucred *,
+ NFSPROC_T *);
+static int nfscl_dofflayoutio(vnode_t, struct uio *, int *, int *, int *,
+ nfsv4stateid_t *, int, struct nfscldevinfo *, struct nfscllayout *,
+ struct nfsclflayout *, uint64_t, uint64_t, int, int, struct mbuf *,
+ struct nfsclwritedsdorpc *, struct ucred *, NFSPROC_T *);
+static struct mbuf *nfsm_copym(struct mbuf *, int, int);
+static int nfsrpc_readds(vnode_t, struct uio *, nfsv4stateid_t *, int *,
+ struct nfsclds *, uint64_t, int, struct nfsfh *, int, int, int,
+ struct ucred *, NFSPROC_T *);
+static int nfsrpc_writeds(vnode_t, struct uio *, int *, int *,
+ nfsv4stateid_t *, struct nfsclds *, uint64_t, int,
+ struct nfsfh *, int, int, int, int, struct ucred *, NFSPROC_T *);
+static int nfsio_writedsmir(vnode_t, int *, int *, nfsv4stateid_t *,
+ struct nfsclds *, uint64_t, int, struct nfsfh *, struct mbuf *, int, int,
+ struct nfsclwritedsdorpc *, struct ucred *, NFSPROC_T *);
+static int nfsrpc_writedsmir(vnode_t, int *, int *, nfsv4stateid_t *,
+ struct nfsclds *, uint64_t, int, struct nfsfh *, struct mbuf *, int, int,
+ struct ucred *, NFSPROC_T *);
+static enum nfsclds_state nfscl_getsameserver(struct nfsmount *,
+ struct nfsclds *, struct nfsclds **, uint32_t *);
+static int nfsio_commitds(vnode_t, uint64_t, int, struct nfsclds *,
+ struct nfsfh *, int, int, struct nfsclwritedsdorpc *, struct ucred *,
+ NFSPROC_T *);
+static int nfsrpc_commitds(vnode_t, uint64_t, int, struct nfsclds *,
+ struct nfsfh *, int, int, struct ucred *, NFSPROC_T *);
+static void nfsrv_setuplayoutget(struct nfsrv_descript *, int, uint64_t,
+ uint64_t, uint64_t, nfsv4stateid_t *, int, int, int);
+static int nfsrv_parseug(struct nfsrv_descript *, int, uid_t *, gid_t *,
+ NFSPROC_T *);
+static int nfsrv_parselayoutget(struct nfsrv_descript *, nfsv4stateid_t *,
+ int *, struct nfsclflayouthead *);
+static int nfsrpc_getopenlayout(struct nfsmount *, vnode_t, u_int8_t *,
+ int, uint8_t *, int, uint32_t, struct nfsclopen *, uint8_t *, int,
+ struct nfscldeleg **, struct ucred *, NFSPROC_T *);
+static int nfsrpc_getcreatelayout(vnode_t, char *, int, struct vattr *,
+ nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ struct nfsfh **, int *, int *, void *, int *);
+static int nfsrpc_openlayoutrpc(struct nfsmount *, vnode_t, u_int8_t *,
+ int, uint8_t *, int, uint32_t, struct nfsclopen *, uint8_t *, int,
+ struct nfscldeleg **, nfsv4stateid_t *, int, int, int, int *,
+ struct nfsclflayouthead *, int *, struct ucred *, NFSPROC_T *);
+static int nfsrpc_createlayout(vnode_t, char *, int, struct vattr *,
+ nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **,
+ struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
+ struct nfsfh **, int *, int *, void *, int *, nfsv4stateid_t *,
+ int, int, int, int *, struct nfsclflayouthead *, int *);
+static int nfsrpc_layoutget(struct nfsmount *, uint8_t *, int, int, uint64_t,
+ uint64_t, uint64_t, int, int, nfsv4stateid_t *, int *,
+ struct nfsclflayouthead *, struct ucred *, NFSPROC_T *, void *);
+static int nfsrpc_layoutgetres(struct nfsmount *, vnode_t, uint8_t *,
+ int, nfsv4stateid_t *, int, uint32_t *, struct nfscllayout **,
+ struct nfsclflayouthead *, int, int, int *, struct ucred *, NFSPROC_T *);
+
+int nfs_pnfsio(task_fn_t *, void *);
+
+/*
+ * nfs null call from vfs.
+ */
+APPLESTATIC int
+nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p)
+{
+ int error;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+
+ NFSCL_REQSTART(nd, NFSPROC_NULL, vp);
+ error = nfscl_request(nd, vp, p, cred, NULL);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs access rpc op.
+ * For nfs version 3 and 4, use the access rpc to check accessibility. If file
+ * modes are changed on the server, accesses might still fail later.
+ */
+APPLESTATIC int
+nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp)
+{
+ int error;
+ u_int32_t mode, rmode;
+
+ if (acmode & VREAD)
+ mode = NFSACCESS_READ;
+ else
+ mode = 0;
+ if (vnode_vtype(vp) == VDIR) {
+ if (acmode & VWRITE)
+ mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND |
+ NFSACCESS_DELETE);
+ if (acmode & VEXEC)
+ mode |= NFSACCESS_LOOKUP;
+ } else {
+ if (acmode & VWRITE)
+ mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND);
+ if (acmode & VEXEC)
+ mode |= NFSACCESS_EXECUTE;
+ }
+
+ /*
+ * Now, just call nfsrpc_accessrpc() to do the actual RPC.
+ */
+ error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode,
+ NULL);
+
+ /*
+ * The NFS V3 spec does not clarify whether or not
+ * the returned access bits can be a superset of
+ * the ones requested, so...
+ */
+ if (!error && (rmode & mode) != mode)
+ error = EACCES;
+ return (error);
+}
+
+/*
+ * The actual rpc, separated out for Darwin.
+ */
+APPLESTATIC int
+nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep,
+ void *stuff)
+{
+ u_int32_t *tl;
+ u_int32_t supported, rmode;
+ int error;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ nfsattrbit_t attrbits;
+
+ *attrflagp = 0;
+ supported = mode;
+ NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(mode);
+ if (nd->nd_flag & ND_NFSV4) {
+ /*
+ * And do a Getattr op.
+ */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3) {
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (error)
+ goto nfsmout;
+ }
+ if (!nd->nd_repstat) {
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ supported = fxdr_unsigned(u_int32_t, *tl++);
+ } else {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ }
+ rmode = fxdr_unsigned(u_int32_t, *tl);
+ if (nd->nd_flag & ND_NFSV4)
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+
+ /*
+ * It's not obvious what should be done about
+ * unsupported access modes. For now, be paranoid
+ * and clear the unsupported ones.
+ */
+ rmode &= supported;
+ *rmodep = rmode;
+ } else
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs open rpc
+ */
+APPLESTATIC int
+nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclopen *op;
+ struct nfscldeleg *dp;
+ struct nfsfh *nfhp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ u_int32_t mode, clidrev;
+ int ret, newone, error, expireret = 0, retrycnt;
+
+ /*
+ * For NFSv4, Open Ops are only done on Regular Files.
+ */
+ if (vnode_vtype(vp) != VREG)
+ return (0);
+ mode = 0;
+ if (amode & FREAD)
+ mode |= NFSV4OPEN_ACCESSREAD;
+ if (amode & FWRITE)
+ mode |= NFSV4OPEN_ACCESSWRITE;
+ nfhp = np->n_fhp;
+
+ retrycnt = 0;
+#ifdef notdef
+{ char name[100]; int namel;
+namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99;
+bcopy(NFS4NODENAME(np->n_v4), name, namel);
+name[namel] = '\0';
+printf("rpcopen p=0x%x name=%s",p->p_pid,name);
+if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]);
+else printf(" fhl=0\n");
+}
+#endif
+ do {
+ dp = NULL;
+ error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1,
+ cred, p, NULL, &op, &newone, &ret, 1);
+ if (error) {
+ return (error);
+ }
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ else
+ clidrev = 0;
+ if (ret == NFSCLOPEN_DOOPEN) {
+ if (np->n_v4 != NULL) {
+ /*
+ * For the first attempt, try and get a layout, if
+ * pNFS is enabled for the mount.
+ */
+ if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 ||
+ nfs_numnfscbd == 0 ||
+ (np->n_flag & NNOLAYOUT) != 0 || retrycnt > 0)
+ error = nfsrpc_openrpc(nmp, vp,
+ np->n_v4->n4_data,
+ np->n_v4->n4_fhlen, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, mode, op,
+ NFS4NODENAME(np->n_v4),
+ np->n_v4->n4_namelen,
+ &dp, 0, 0x0, cred, p, 0, 0);
+ else
+ error = nfsrpc_getopenlayout(nmp, vp,
+ np->n_v4->n4_data,
+ np->n_v4->n4_fhlen, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, mode, op,
+ NFS4NODENAME(np->n_v4),
+ np->n_v4->n4_namelen, &dp, cred, p);
+ if (dp != NULL) {
+#ifdef APPLE
+ OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag);
+#else
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDELEGMOD;
+ /*
+ * Invalidate the attribute cache, so that
+ * attributes that pre-date the issue of a
+ * delegation are not cached, since the
+ * cached attributes will remain valid while
+ * the delegation is held.
+ */
+ NFSINVALATTRCACHE(np);
+ NFSUNLOCKNODE(np);
+#endif
+ (void) nfscl_deleg(nmp->nm_mountp,
+ op->nfso_own->nfsow_clp,
+ nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp);
+ }
+ } else {
+ error = EIO;
+ }
+ newnfs_copyincred(cred, &op->nfso_cred);
+ } else if (ret == NFSCLOPEN_SETCRED)
+ /*
+ * This is a new local open on a delegation. It needs
+ * to have credentials so that an open can be done
+ * against the server during recovery.
+ */
+ newnfs_copyincred(cred, &op->nfso_cred);
+
+ /*
+ * nfso_opencnt is the count of how many VOP_OPEN()s have
+ * been done on this Open successfully and a VOP_CLOSE()
+ * is expected for each of these.
+ * If error is non-zero, don't increment it, since the Open
+ * hasn't succeeded yet.
+ */
+ if (!error)
+ op->nfso_opencnt++;
+ nfscl_openrelease(nmp, op, error, newone);
+ if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_open");
+ } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID)
+ && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ retrycnt++;
+ }
+ } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4));
+ if (error && retrycnt >= 4)
+ error = EIO;
+ return (error);
+}
+
+/*
+ * the actual open rpc
+ */
+APPLESTATIC int
+nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen,
+ u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op,
+ u_int8_t *name, int namelen, struct nfscldeleg **dpp,
+ int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p,
+ int syscred, int recursed)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfscldeleg *dp, *ndp = NULL;
+ struct nfsvattr nfsva;
+ u_int32_t rflags, deleg;
+ nfsattrbit_t attrbits;
+ int error, ret, acesize, limitby;
+ struct nfsclsession *tsep;
+
+ dp = *dpp;
+ *dpp = NULL;
+ nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid);
+ *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH);
+ *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE);
+ if (reclaim) {
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(delegtype);
+ } else {
+ if (dp != NULL) {
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = dp->nfsdl_stateid.seqid;
+ *tl++ = dp->nfsdl_stateid.other[0];
+ *tl++ = dp->nfsdl_stateid.other[1];
+ *tl = dp->nfsdl_stateid.other[2];
+ } else {
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL);
+ }
+ (void) nfsm_strtom(nd, name, namelen);
+ }
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd);
+ if (!nd->nd_repstat) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ 6 * NFSX_UNSIGNED);
+ op->nfso_stateid.seqid = *tl++;
+ op->nfso_stateid.other[0] = *tl++;
+ op->nfso_stateid.other[1] = *tl++;
+ op->nfso_stateid.other[2] = *tl;
+ rflags = fxdr_unsigned(u_int32_t, *(tl + 6));
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ if (error)
+ goto nfsmout;
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ deleg = fxdr_unsigned(u_int32_t, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEREAD ||
+ deleg == NFSV4OPEN_DELEGATEWRITE) {
+ if (!(op->nfso_own->nfsow_clp->nfsc_flags &
+ NFSCLFLAGS_FIRSTDELEG))
+ op->nfso_own->nfsow_clp->nfsc_flags |=
+ (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG);
+ ndp = malloc(
+ sizeof (struct nfscldeleg) + newfhlen,
+ M_NFSCLDELEG, M_WAITOK);
+ LIST_INIT(&ndp->nfsdl_owner);
+ LIST_INIT(&ndp->nfsdl_lock);
+ ndp->nfsdl_clp = op->nfso_own->nfsow_clp;
+ ndp->nfsdl_fhlen = newfhlen;
+ NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen);
+ newnfs_copyincred(cred, &ndp->nfsdl_cred);
+ nfscl_lockinit(&ndp->nfsdl_rwlock);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ ndp->nfsdl_stateid.seqid = *tl++;
+ ndp->nfsdl_stateid.other[0] = *tl++;
+ ndp->nfsdl_stateid.other[1] = *tl++;
+ ndp->nfsdl_stateid.other[2] = *tl++;
+ ret = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEWRITE) {
+ ndp->nfsdl_flags = NFSCLDL_WRITE;
+ /*
+ * Indicates how much the file can grow.
+ */
+ NFSM_DISSECT(tl, u_int32_t *,
+ 3 * NFSX_UNSIGNED);
+ limitby = fxdr_unsigned(int, *tl++);
+ switch (limitby) {
+ case NFSV4OPEN_LIMITSIZE:
+ ndp->nfsdl_sizelimit = fxdr_hyper(tl);
+ break;
+ case NFSV4OPEN_LIMITBLOCKS:
+ ndp->nfsdl_sizelimit =
+ fxdr_unsigned(u_int64_t, *tl++);
+ ndp->nfsdl_sizelimit *=
+ fxdr_unsigned(u_int64_t, *tl);
+ break;
+ default:
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ } else {
+ ndp->nfsdl_flags = NFSCLDL_READ;
+ }
+ if (ret)
+ ndp->nfsdl_flags |= NFSCLDL_RECALL;
+ error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret,
+ &acesize, p);
+ if (error)
+ goto nfsmout;
+ } else if (deleg != NFSV4OPEN_DELEGATENONE) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, NULL, p, cred);
+ if (error)
+ goto nfsmout;
+ if (ndp != NULL) {
+ ndp->nfsdl_change = nfsva.na_filerev;
+ ndp->nfsdl_modtime = nfsva.na_mtime;
+ ndp->nfsdl_flags |= NFSCLDL_MODTIMESET;
+ }
+ if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) {
+ do {
+ ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op,
+ cred, p);
+ if (ret == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, ret, "nfs_open");
+ } while (ret == NFSERR_DELAY);
+ error = ret;
+ }
+ if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) ||
+ nfscl_assumeposixlocks)
+ op->nfso_posixlock = 1;
+ else
+ op->nfso_posixlock = 0;
+
+ /*
+ * If the server is handing out delegations, but we didn't
+ * get one because an OpenConfirm was required, try the
+ * Open again, to get a delegation. This is a harmless no-op,
+ * from a server's point of view.
+ */
+ if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) &&
+ (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG)
+ && !error && dp == NULL && ndp == NULL && !recursed) {
+ do {
+ ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp,
+ newfhlen, mode, op, name, namelen, &ndp, 0, 0x0,
+ cred, p, syscred, 1);
+ if (ret == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, ret, "nfs_open2");
+ } while (ret == NFSERR_DELAY);
+ if (ret) {
+ if (ndp != NULL) {
+ free(ndp, M_NFSCLDELEG);
+ ndp = NULL;
+ }
+ if (ret == NFSERR_STALECLIENTID ||
+ ret == NFSERR_STALEDONTRECOVER ||
+ ret == NFSERR_BADSESSION)
+ error = ret;
+ }
+ }
+ }
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALECLIENTID)
+ nfscl_initiate_recovery(op->nfso_own->nfsow_clp);
+nfsmout:
+ if (!error)
+ *dpp = ndp;
+ else if (ndp != NULL)
+ free(ndp, M_NFSCLDELEG);
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * open downgrade rpc
+ */
+APPLESTATIC int
+nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED);
+ if (NFSHASNFSV4N(VFSTONFS(vnode_mount(vp))))
+ *tl++ = 0;
+ else
+ *tl++ = op->nfso_stateid.seqid;
+ *tl++ = op->nfso_stateid.other[0];
+ *tl++ = op->nfso_stateid.other[1];
+ *tl++ = op->nfso_stateid.other[2];
+ *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid);
+ *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH);
+ *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH);
+ error = nfscl_request(nd, vp, p, cred, NULL);
+ if (error)
+ return (error);
+ NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd);
+ if (!nd->nd_repstat) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
+ op->nfso_stateid.seqid = *tl++;
+ op->nfso_stateid.other[0] = *tl++;
+ op->nfso_stateid.other[1] = *tl++;
+ op->nfso_stateid.other[2] = *tl;
+ }
+ if (nd->nd_repstat && error == 0)
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(op->nfso_own->nfsow_clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * V4 Close operation.
+ */
+APPLESTATIC int
+nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ int error;
+
+ if (vnode_vtype(vp) != VREG)
+ return (0);
+ if (doclose)
+ error = nfscl_doclose(vp, &clp, p);
+ else
+ error = nfscl_getclose(vp, &clp);
+ if (error)
+ return (error);
+
+ nfscl_clientrelease(clp);
+ return (0);
+}
+
+/*
+ * Close the open.
+ */
+APPLESTATIC void
+nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfscllockowner *lp, *nlp;
+ struct nfscllock *lop, *nlop;
+ struct ucred *tcred;
+ u_int64_t off = 0, len = 0;
+ u_int32_t type = NFSV4LOCKT_READ;
+ int error, do_unlock, trycnt;
+
+ tcred = newnfs_getcred();
+ newnfs_copycred(&op->nfso_cred, tcred);
+ /*
+ * (Theoretically this could be done in the same
+ * compound as the close, but having multiple
+ * sequenced Ops in the same compound might be
+ * too scary for some servers.)
+ */
+ if (op->nfso_posixlock) {
+ off = 0;
+ len = NFS64BITSSET;
+ type = NFSV4LOCKT_READ;
+ }
+
+ /*
+ * Since this function is only called from VOP_INACTIVE(), no
+ * other thread will be manipulating this Open. As such, the
+ * lock lists are not being changed by other threads, so it should
+ * be safe to do this without locking.
+ */
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ do_unlock = 1;
+ LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) {
+ if (op->nfso_posixlock == 0) {
+ off = lop->nfslo_first;
+ len = lop->nfslo_end - lop->nfslo_first;
+ if (lop->nfslo_type == F_WRLCK)
+ type = NFSV4LOCKT_WRITE;
+ else
+ type = NFSV4LOCKT_READ;
+ }
+ if (do_unlock) {
+ trycnt = 0;
+ do {
+ error = nfsrpc_locku(nd, nmp, lp, off,
+ len, type, tcred, p, 0);
+ if ((nd->nd_repstat == NFSERR_GRACE ||
+ nd->nd_repstat == NFSERR_DELAY) &&
+ error == 0)
+ (void) nfs_catnap(PZERO,
+ (int)nd->nd_repstat,
+ "nfs_close");
+ } while ((nd->nd_repstat == NFSERR_GRACE ||
+ nd->nd_repstat == NFSERR_DELAY) &&
+ error == 0 && trycnt++ < 5);
+ if (op->nfso_posixlock)
+ do_unlock = 0;
+ }
+ nfscl_freelock(lop, 0);
+ }
+ /*
+ * Do a ReleaseLockOwner.
+ * The lock owner name nfsl_owner may be used by other opens for
+ * other files but the lock_owner4 name that nfsrpc_rellockown()
+ * puts on the wire has the file handle for this file appended
+ * to it, so it can be done now.
+ */
+ (void)nfsrpc_rellockown(nmp, lp, lp->nfsl_open->nfso_fh,
+ lp->nfsl_open->nfso_fhlen, tcred, p);
+ }
+
+ /*
+ * There could be other Opens for different files on the same
+ * OpenOwner, so locking is required.
+ */
+ NFSLOCKCLSTATE();
+ nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR);
+ NFSUNLOCKCLSTATE();
+ do {
+ error = nfscl_tryclose(op, tcred, nmp, p);
+ if (error == NFSERR_GRACE)
+ (void) nfs_catnap(PZERO, error, "nfs_close");
+ } while (error == NFSERR_GRACE);
+ NFSLOCKCLSTATE();
+ nfscl_lockunlock(&op->nfso_own->nfsow_rwlock);
+
+ LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp)
+ nfscl_freelockowner(lp, 0);
+ nfscl_freeopen(op, 0);
+ NFSUNLOCKCLSTATE();
+ NFSFREECRED(tcred);
+}
+
+/*
+ * The actual Close RPC.
+ */
+APPLESTATIC int
+nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp,
+ struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p,
+ int syscred)
+{
+ u_int32_t *tl;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh,
+ op->nfso_fhlen, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID);
+ *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = op->nfso_stateid.seqid;
+ *tl++ = op->nfso_stateid.other[0];
+ *tl++ = op->nfso_stateid.other[1];
+ *tl = op->nfso_stateid.other[2];
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd);
+ if (nd->nd_repstat == 0)
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(op->nfso_own->nfsow_clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * V4 Open Confirm RPC.
+ */
+APPLESTATIC int
+nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen,
+ struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ int error;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (NFSHASNFSV4N(nmp))
+ return (0); /* No confirmation for NFSv4.1. */
+ nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, nmp, nfhp, fhlen, NULL, NULL,
+ 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID);
+ *tl++ = op->nfso_stateid.seqid;
+ *tl++ = op->nfso_stateid.other[0];
+ *tl++ = op->nfso_stateid.other[1];
+ *tl++ = op->nfso_stateid.other[2];
+ *tl = txdr_unsigned(op->nfso_own->nfsow_seqid);
+ error = nfscl_request(nd, vp, p, cred, NULL);
+ if (error)
+ return (error);
+ NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd);
+ if (!nd->nd_repstat) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
+ op->nfso_stateid.seqid = *tl++;
+ op->nfso_stateid.other[0] = *tl++;
+ op->nfso_stateid.other[1] = *tl++;
+ op->nfso_stateid.other[2] = *tl;
+ }
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(op->nfso_own->nfsow_clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs()
+ * when a mount has just occurred and when the server replies NFSERR_EXPIRED.
+ */
+APPLESTATIC int
+nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, int reclaim,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ nfsattrbit_t attrbits;
+ u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9];
+ u_short port;
+ int error, isinet6 = 0, callblen;
+ nfsquad_t confirm;
+ u_int32_t lease;
+ static u_int32_t rev = 0;
+ struct nfsclds *dsp;
+ struct in6_addr a6;
+ struct nfsclsession *tsep;
+
+ if (nfsboottime.tv_sec == 0)
+ NFSSETBOOTTIME(nfsboottime);
+ clp->nfsc_rev = rev++;
+ if (NFSHASNFSV4N(nmp)) {
+ /*
+ * Either there was no previous session or the
+ * previous session has failed, so...
+ * do an ExchangeID followed by the CreateSession.
+ */
+ error = nfsrpc_exchangeid(nmp, clp, &nmp->nm_sockreq,
+ NFSV4EXCH_USEPNFSMDS | NFSV4EXCH_USENONPNFS, &dsp, cred, p);
+ NFSCL_DEBUG(1, "aft exch=%d\n", error);
+ if (error == 0)
+ error = nfsrpc_createsession(nmp, &dsp->nfsclds_sess,
+ &nmp->nm_sockreq,
+ dsp->nfsclds_sess.nfsess_sequenceid, 1, cred, p);
+ if (error == 0) {
+ NFSLOCKMNT(nmp);
+ /*
+ * The old sessions cannot be safely free'd
+ * here, since they may still be used by
+ * in-progress RPCs.
+ */
+ tsep = NULL;
+ if (TAILQ_FIRST(&nmp->nm_sess) != NULL)
+ tsep = NFSMNT_MDSSESSION(nmp);
+ TAILQ_INSERT_HEAD(&nmp->nm_sess, dsp,
+ nfsclds_list);
+ /*
+ * Wake up RPCs waiting for a slot on the
+ * old session. These will then fail with
+ * NFSERR_BADSESSION and be retried with the
+ * new session by nfsv4_setsequence().
+ * Also wakeup() processes waiting for the
+ * new session.
+ */
+ if (tsep != NULL)
+ wakeup(&tsep->nfsess_slots);
+ wakeup(&nmp->nm_sess);
+ NFSUNLOCKMNT(nmp);
+ } else
+ nfscl_freenfsclds(dsp);
+ NFSCL_DEBUG(1, "aft createsess=%d\n", error);
+ if (error == 0 && reclaim == 0) {
+ error = nfsrpc_reclaimcomplete(nmp, cred, p);
+ NFSCL_DEBUG(1, "aft reclaimcomp=%d\n", error);
+ if (error == NFSERR_COMPLETEALREADY ||
+ error == NFSERR_NOTSUPP)
+ /* Ignore this error. */
+ error = 0;
+ }
+ return (error);
+ }
+
+ /*
+ * Allocate a single session structure for NFSv4.0, because some of
+ * the fields are used by NFSv4.0 although it doesn't do a session.
+ */
+ dsp = malloc(sizeof(struct nfsclds), M_NFSCLDS, M_WAITOK | M_ZERO);
+ mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF);
+ mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession", NULL, MTX_DEF);
+ NFSLOCKMNT(nmp);
+ TAILQ_INSERT_HEAD(&nmp->nm_sess, dsp, nfsclds_list);
+ tsep = NFSMNT_MDSSESSION(nmp);
+ NFSUNLOCKMNT(nmp);
+
+ nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(nfsboottime.tv_sec);
+ *tl = txdr_unsigned(clp->nfsc_rev);
+ (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen);
+
+ /*
+ * set up the callback address
+ */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFS_CALLBCKPROG);
+ callblen = strlen(nfsv4_callbackaddr);
+ if (callblen == 0)
+ cp = nfscl_getmyip(nmp, &a6, &isinet6);
+ if (nfscl_enablecallb && nfs_numnfscbd > 0 &&
+ (callblen > 0 || cp != NULL)) {
+ port = htons(nfsv4_cbport);
+ cp2 = (u_int8_t *)&port;
+#ifdef INET6
+ if ((callblen > 0 &&
+ strchr(nfsv4_callbackaddr, ':')) || isinet6) {
+ char ip6buf[INET6_ADDRSTRLEN], *ip6add;
+
+ (void) nfsm_strtom(nd, "tcp6", 4);
+ if (callblen == 0) {
+ ip6_sprintf(ip6buf, (struct in6_addr *)cp);
+ ip6add = ip6buf;
+ } else {
+ ip6add = nfsv4_callbackaddr;
+ }
+ snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d",
+ ip6add, cp2[0], cp2[1]);
+ } else
+#endif
+ {
+ (void) nfsm_strtom(nd, "tcp", 3);
+ if (callblen == 0)
+ snprintf(addr, INET6_ADDRSTRLEN + 9,
+ "%d.%d.%d.%d.%d.%d", cp[0], cp[1],
+ cp[2], cp[3], cp2[0], cp2[1]);
+ else
+ snprintf(addr, INET6_ADDRSTRLEN + 9,
+ "%s.%d.%d", nfsv4_callbackaddr,
+ cp2[0], cp2[1]);
+ }
+ (void) nfsm_strtom(nd, addr, strlen(addr));
+ } else {
+ (void) nfsm_strtom(nd, "tcp", 3);
+ (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11);
+ }
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(clp->nfsc_cbident);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ tsep->nfsess_clientid.lval[0] = *tl++;
+ tsep->nfsess_clientid.lval[1] = *tl++;
+ confirm.lval[0] = *tl++;
+ confirm.lval[1] = *tl;
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+
+ /*
+ * and confirm it.
+ */
+ nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL,
+ NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl++ = tsep->nfsess_clientid.lval[1];
+ *tl++ = confirm.lval[0];
+ *tl = confirm.lval[1];
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p,
+ cred, NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ if (nd->nd_repstat == 0) {
+ nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh,
+ nmp->nm_fhsize, NULL, NULL, 0, 0);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p,
+ cred, NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL,
+ NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred);
+ if (error)
+ goto nfsmout;
+ clp->nfsc_renew = NFSCL_RENEW(lease);
+ clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew;
+ clp->nfsc_clientidrev++;
+ if (clp->nfsc_clientidrev == 0)
+ clp->nfsc_clientidrev++;
+ }
+ }
+ }
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs getattr call.
+ */
+APPLESTATIC int
+nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p,
+ struct nfsvattr *nap, void *stuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+ nfsattrbit_t attrbits;
+
+ NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (!nd->nd_repstat)
+ error = nfsm_loadattr(nd, nap);
+ else
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs getattr call with non-vnode arguemnts.
+ */
+APPLESTATIC int
+nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp,
+ uint32_t *leasep)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error, vers = NFS_VER2;
+ nfsattrbit_t attrbits;
+
+ nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL, NULL, 0, 0);
+ if (nd->nd_flag & ND_NFSV4) {
+ vers = NFS_VER4;
+ NFSGETATTR_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ } else if (nd->nd_flag & ND_NFSV3) {
+ vers = NFS_VER3;
+ }
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, vers, NULL, 1, xidp, NULL);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ if ((nd->nd_flag & ND_NFSV4) != 0)
+ error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0,
+ NULL, NULL, NULL, NULL, NULL, 0, NULL, leasep, NULL,
+ NULL, NULL);
+ else
+ error = nfsm_loadattr(nd, nap);
+ } else
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do an nfs setattr operation.
+ */
+APPLESTATIC int
+nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp,
+ void *stuff)
+{
+ int error, expireret = 0, openerr, retrycnt;
+ u_int32_t clidrev = 0, mode;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsfh *nfhp;
+ nfsv4stateid_t stateid;
+ void *lckp;
+
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size))
+ mode = NFSV4OPEN_ACCESSWRITE;
+ else
+ mode = NFSV4OPEN_ACCESSREAD;
+ retrycnt = 0;
+ do {
+ lckp = NULL;
+ openerr = 1;
+ if (NFSHASNFSV4(nmp)) {
+ nfhp = VTONFS(vp)->n_fhp;
+ error = nfscl_getstateid(vp, nfhp->nfh_fh,
+ nfhp->nfh_len, mode, 0, cred, p, &stateid, &lckp);
+ if (error && vnode_vtype(vp) == VREG &&
+ (mode == NFSV4OPEN_ACCESSWRITE ||
+ nfstest_openallsetattr)) {
+ /*
+ * No Open stateid, so try and open the file
+ * now.
+ */
+ if (mode == NFSV4OPEN_ACCESSWRITE)
+ openerr = nfsrpc_open(vp, FWRITE, cred,
+ p);
+ else
+ openerr = nfsrpc_open(vp, FREAD, cred,
+ p);
+ if (!openerr)
+ (void) nfscl_getstateid(vp,
+ nfhp->nfh_fh, nfhp->nfh_len,
+ mode, 0, cred, p, &stateid, &lckp);
+ }
+ }
+ if (vap != NULL)
+ error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p,
+ rnap, attrflagp, stuff);
+ else
+ error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid,
+ stuff);
+ if (error == NFSERR_OPENMODE && mode == NFSV4OPEN_ACCESSREAD) {
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_OPENMODE;
+ NFSUNLOCKMNT(nmp);
+ }
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(nmp->nm_clp);
+ if (lckp != NULL)
+ nfscl_lockderef(lckp);
+ if (!openerr)
+ (void) nfsrpc_close(vp, 0, p);
+ if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_setattr");
+ } else if ((error == NFSERR_EXPIRED ||
+ error == NFSERR_BADSTATEID) && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ }
+ retrycnt++;
+ } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION ||
+ (error == NFSERR_OLDSTATEID && retrycnt < 20) ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4) ||
+ (error == NFSERR_OPENMODE && mode == NFSV4OPEN_ACCESSREAD &&
+ retrycnt < 4));
+ if (error && retrycnt >= 4)
+ error = EIO;
+ return (error);
+}
+
+static int
+nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap,
+ nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p,
+ struct nfsvattr *rnap, int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+ nfsattrbit_t attrbits;
+
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp);
+ if (nd->nd_flag & ND_NFSV4)
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ vap->va_type = vnode_vtype(vp);
+ nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0);
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ } else if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4))
+ error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff);
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && !error)
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error)
+ error = nfscl_postop_attr(nd, rnap, attrflagp, stuff);
+ mbuf_freem(nd->nd_mrep);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ return (error);
+}
+
+/*
+ * nfs lookup rpc
+ */
+APPLESTATIC int
+nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap,
+ struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ struct nfsnode *np;
+ struct nfsfh *nfhp;
+ nfsattrbit_t attrbits;
+ int error = 0, lookupp = 0;
+
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (vnode_vtype(dvp) != VDIR)
+ return (ENOTDIR);
+ nmp = VFSTONFS(vnode_mount(dvp));
+ if (len > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ if (NFSHASNFSV4(nmp) && len == 1 &&
+ name[0] == '.') {
+ /*
+ * Just return the current dir's fh.
+ */
+ np = VTONFS(dvp);
+ nfhp = malloc(sizeof (struct nfsfh) +
+ np->n_fhp->nfh_len, M_NFSFH, M_WAITOK);
+ nfhp->nfh_len = np->n_fhp->nfh_len;
+ NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len);
+ *nfhpp = nfhp;
+ return (0);
+ }
+ if (NFSHASNFSV4(nmp) && len == 2 &&
+ name[0] == '.' && name[1] == '.') {
+ lookupp = 1;
+ NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp);
+ } else {
+ NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp);
+ (void) nfsm_strtom(nd, name, len);
+ }
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSGETATTR_ATTRBIT(&attrbits);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, dvp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_repstat) {
+ /*
+ * When an NFSv4 Lookupp returns ENOENT, it means that
+ * the lookup is at the root of an fs, so return this dir.
+ */
+ if (nd->nd_repstat == NFSERR_NOENT && lookupp) {
+ np = VTONFS(dvp);
+ nfhp = malloc(sizeof (struct nfsfh) +
+ np->n_fhp->nfh_len, M_NFSFH, M_WAITOK);
+ nfhp->nfh_len = np->n_fhp->nfh_len;
+ NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len);
+ *nfhpp = nfhp;
+ mbuf_freem(nd->nd_mrep);
+ return (0);
+ }
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff);
+ else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) ==
+ ND_NFSV4) {
+ /* Load the directory attributes. */
+ error = nfsm_loadattr(nd, dnap);
+ if (error == 0)
+ *dattrflagp = 1;
+ }
+ goto nfsmout;
+ }
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) {
+ /* Load the directory attributes. */
+ error = nfsm_loadattr(nd, dnap);
+ if (error != 0)
+ goto nfsmout;
+ *dattrflagp = 1;
+ /* Skip over the Lookup and GetFH operation status values. */
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ }
+ error = nfsm_getfh(nd, nfhpp);
+ if (error)
+ goto nfsmout;
+
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if ((nd->nd_flag & ND_NFSV3) && !error)
+ error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ if (!error && nd->nd_repstat)
+ error = nd->nd_repstat;
+ return (error);
+}
+
+/*
+ * Do a readlink rpc.
+ */
+APPLESTATIC int
+nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsnode *np = VTONFS(vp);
+ nfsattrbit_t attrbits;
+ int error, len, cangetattr = 1;
+
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_READLINK, vp);
+ if (nd->nd_flag & ND_NFSV4) {
+ /*
+ * And do a Getattr op.
+ */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (!nd->nd_repstat && !error) {
+ NFSM_STRSIZ(len, NFS_MAXPATHLEN);
+ /*
+ * This seems weird to me, but must have been added to
+ * FreeBSD for some reason. The only thing I can think of
+ * is that there was/is some server that replies with
+ * more link data than it should?
+ */
+ if (len == NFS_MAXPATHLEN) {
+ NFSLOCKNODE(np);
+ if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) {
+ len = np->n_size;
+ cangetattr = 0;
+ }
+ NFSUNLOCKNODE(np);
+ }
+ error = nfsm_mbufuio(nd, uiop, len);
+ if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr)
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ }
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Read operation.
+ */
+APPLESTATIC int
+nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff)
+{
+ int error, expireret = 0, retrycnt;
+ u_int32_t clidrev = 0;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsnode *np = VTONFS(vp);
+ struct ucred *newcred;
+ struct nfsfh *nfhp = NULL;
+ nfsv4stateid_t stateid;
+ void *lckp;
+
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ newcred = cred;
+ if (NFSHASNFSV4(nmp)) {
+ nfhp = np->n_fhp;
+ newcred = NFSNEWCRED(cred);
+ }
+ retrycnt = 0;
+ do {
+ lckp = NULL;
+ if (NFSHASNFSV4(nmp))
+ (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len,
+ NFSV4OPEN_ACCESSREAD, 0, newcred, p, &stateid,
+ &lckp);
+ error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap,
+ attrflagp, stuff);
+ if (error == NFSERR_OPENMODE) {
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_OPENMODE;
+ NFSUNLOCKMNT(nmp);
+ }
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(nmp->nm_clp);
+ if (lckp != NULL)
+ nfscl_lockderef(lckp);
+ if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_read");
+ } else if ((error == NFSERR_EXPIRED ||
+ error == NFSERR_BADSTATEID) && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ }
+ retrycnt++;
+ } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION ||
+ (error == NFSERR_OLDSTATEID && retrycnt < 20) ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4) ||
+ (error == NFSERR_OPENMODE && retrycnt < 4));
+ if (error && retrycnt >= 4)
+ error = EIO;
+ if (NFSHASNFSV4(nmp))
+ NFSFREECRED(newcred);
+ return (error);
+}
+
+/*
+ * The actual read RPC.
+ */
+static int
+nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred,
+ nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap,
+ int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ int error = 0, len, retlen, tsiz, eof = 0;
+ struct nfsrv_descript nfsd;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsrv_descript *nd = &nfsd;
+ int rsize;
+ off_t tmp_off;
+
+ *attrflagp = 0;
+ tsiz = uio_uio_resid(uiop);
+ tmp_off = uiop->uio_offset + tsiz;
+ NFSLOCKMNT(nmp);
+ if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) {
+ NFSUNLOCKMNT(nmp);
+ return (EFBIG);
+ }
+ rsize = nmp->nm_rsize;
+ NFSUNLOCKMNT(nmp);
+ nd->nd_mrep = NULL;
+ while (tsiz > 0) {
+ *attrflagp = 0;
+ len = (tsiz > rsize) ? rsize : tsiz;
+ NFSCL_REQSTART(nd, NFSPROC_READ, vp);
+ if (nd->nd_flag & ND_NFSV4)
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3);
+ if (nd->nd_flag & ND_NFSV2) {
+ *tl++ = txdr_unsigned(uiop->uio_offset);
+ *tl++ = txdr_unsigned(len);
+ *tl = 0;
+ } else {
+ txdr_hyper(uiop->uio_offset, tl);
+ *(tl + 2) = txdr_unsigned(len);
+ }
+ /*
+ * Since I can't do a Getattr for NFSv4 for Write, there
+ * doesn't seem any point in doing one here, either.
+ * (See the comment in nfsrpc_writerpc() for more info.)
+ */
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3) {
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) {
+ error = nfsm_loadattr(nd, nap);
+ if (!error)
+ *attrflagp = 1;
+ }
+ if (nd->nd_repstat || error) {
+ if (!error)
+ error = nd->nd_repstat;
+ goto nfsmout;
+ }
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ eof = fxdr_unsigned(int, *(tl + 1));
+ } else if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ eof = fxdr_unsigned(int, *tl);
+ }
+ NFSM_STRSIZ(retlen, len);
+ error = nfsm_mbufuio(nd, uiop, retlen);
+ if (error)
+ goto nfsmout;
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ tsiz -= retlen;
+ if (!(nd->nd_flag & ND_NFSV2)) {
+ if (eof || retlen == 0)
+ tsiz = 0;
+ } else if (retlen < len)
+ tsiz = 0;
+ }
+ return (0);
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs write operation
+ * When called_from_strategy != 0, it should return EIO for an error that
+ * indicates recovery is in progress, so that the buffer will be left
+ * dirty and be written back to the server later. If it loops around,
+ * the recovery thread could get stuck waiting for the buffer and recovery
+ * will then deadlock.
+ */
+APPLESTATIC int
+nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp,
+ void *stuff, int called_from_strategy)
+{
+ int error, expireret = 0, retrycnt, nostateid;
+ u_int32_t clidrev = 0;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsnode *np = VTONFS(vp);
+ struct ucred *newcred;
+ struct nfsfh *nfhp = NULL;
+ nfsv4stateid_t stateid;
+ void *lckp;
+
+ *must_commit = 0;
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ newcred = cred;
+ if (NFSHASNFSV4(nmp)) {
+ newcred = NFSNEWCRED(cred);
+ nfhp = np->n_fhp;
+ }
+ retrycnt = 0;
+ do {
+ lckp = NULL;
+ nostateid = 0;
+ if (NFSHASNFSV4(nmp)) {
+ (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len,
+ NFSV4OPEN_ACCESSWRITE, 0, newcred, p, &stateid,
+ &lckp);
+ if (stateid.other[0] == 0 && stateid.other[1] == 0 &&
+ stateid.other[2] == 0) {
+ nostateid = 1;
+ NFSCL_DEBUG(1, "stateid0 in write\n");
+ }
+ }
+
+ /*
+ * If there is no stateid for NFSv4, it means this is an
+ * extraneous write after close. Basically a poorly
+ * implemented buffer cache. Just don't do the write.
+ */
+ if (nostateid)
+ error = 0;
+ else
+ error = nfsrpc_writerpc(vp, uiop, iomode, must_commit,
+ newcred, &stateid, p, nap, attrflagp, stuff);
+ if (error == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(nmp->nm_clp);
+ if (lckp != NULL)
+ nfscl_lockderef(lckp);
+ if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_write");
+ } else if ((error == NFSERR_EXPIRED ||
+ error == NFSERR_BADSTATEID) && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ }
+ retrycnt++;
+ } while (error == NFSERR_GRACE || error == NFSERR_DELAY ||
+ ((error == NFSERR_STALESTATEID || error == NFSERR_BADSESSION ||
+ error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) ||
+ (error == NFSERR_OLDSTATEID && retrycnt < 20) ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4));
+ if (error != 0 && (retrycnt >= 4 ||
+ ((error == NFSERR_STALESTATEID || error == NFSERR_BADSESSION ||
+ error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0)))
+ error = EIO;
+ if (NFSHASNFSV4(nmp))
+ NFSFREECRED(newcred);
+ return (error);
+}
+
+/*
+ * The actual write RPC.
+ */
+static int
+nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode,
+ int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsnode *np = VTONFS(vp);
+ int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC;
+ int wccflag = 0, wsize;
+ int32_t backup;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ nfsattrbit_t attrbits;
+ off_t tmp_off;
+
+ KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1"));
+ *attrflagp = 0;
+ tsiz = uio_uio_resid(uiop);
+ tmp_off = uiop->uio_offset + tsiz;
+ NFSLOCKMNT(nmp);
+ if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) {
+ NFSUNLOCKMNT(nmp);
+ return (EFBIG);
+ }
+ wsize = nmp->nm_wsize;
+ NFSUNLOCKMNT(nmp);
+ nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */
+ nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */
+ while (tsiz > 0) {
+ *attrflagp = 0;
+ len = (tsiz > wsize) ? wsize : tsiz;
+ NFSCL_REQSTART(nd, NFSPROC_WRITE, vp);
+ if (nd->nd_flag & ND_NFSV4) {
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED);
+ txdr_hyper(uiop->uio_offset, tl);
+ tl += 2;
+ *tl++ = txdr_unsigned(*iomode);
+ *tl = txdr_unsigned(len);
+ } else if (nd->nd_flag & ND_NFSV3) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED);
+ txdr_hyper(uiop->uio_offset, tl);
+ tl += 2;
+ *tl++ = txdr_unsigned(len);
+ *tl++ = txdr_unsigned(*iomode);
+ *tl = txdr_unsigned(len);
+ } else {
+ u_int32_t x;
+
+ NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ /*
+ * Not sure why someone changed this, since the
+ * RFC clearly states that "beginoffset" and
+ * "totalcount" are ignored, but it wouldn't
+ * surprise me if there's a busted server out there.
+ */
+ /* Set both "begin" and "current" to non-garbage. */
+ x = txdr_unsigned((u_int32_t)uiop->uio_offset);
+ *tl++ = x; /* "begin offset" */
+ *tl++ = x; /* "current offset" */
+ x = txdr_unsigned(len);
+ *tl++ = x; /* total to this offset */
+ *tl = x; /* size of this write */
+
+ }
+ nfsm_uiombuf(nd, uiop, len);
+ /*
+ * Although it is tempting to do a normal Getattr Op in the
+ * NFSv4 compound, the result can be a nearly hung client
+ * system if the Getattr asks for Owner and/or OwnerGroup.
+ * It occurs when the client can't map either the Owner or
+ * Owner_group name in the Getattr reply to a uid/gid. When
+ * there is a cache miss, the kernel does an upcall to the
+ * nfsuserd. Then, it can try and read the local /etc/passwd
+ * or /etc/group file. It can then block in getnewbuf(),
+ * waiting for dirty writes to be pushed to the NFS server.
+ * The only reason this doesn't result in a complete
+ * deadlock, is that the upcall times out and allows
+ * the write to complete. However, progress is so slow
+ * that it might just as well be deadlocked.
+ * As such, we get the rest of the attributes, but not
+ * Owner or Owner_group.
+ * nb: nfscl_loadattrcache() needs to be told that these
+ * partial attributes from a write rpc are being
+ * passed in, via a argument flag.
+ */
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSWRITEGETATTR_ATTRBIT(&attrbits);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_repstat) {
+ /*
+ * In case the rpc gets retried, roll
+ * the uio fileds changed by nfsm_uiombuf()
+ * back.
+ */
+ uiop->uio_offset -= len;
+ uio_uio_resid_add(uiop, len);
+ uio_iov_base_add(uiop, -len);
+ uio_iov_len_add(uiop, len);
+ }
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+ error = nfscl_wcc_data(nd, vp, nap, attrflagp,
+ &wccflag, stuff);
+ if (error)
+ goto nfsmout;
+ }
+ if (!nd->nd_repstat) {
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED
+ + NFSX_VERF);
+ rlen = fxdr_unsigned(int, *tl++);
+ if (rlen == 0) {
+ error = NFSERR_IO;
+ goto nfsmout;
+ } else if (rlen < len) {
+ backup = len - rlen;
+ uio_iov_base_add(uiop, -(backup));
+ uio_iov_len_add(uiop, backup);
+ uiop->uio_offset -= backup;
+ uio_uio_resid_add(uiop, backup);
+ len = rlen;
+ }
+ commit = fxdr_unsigned(int, *tl++);
+
+ /*
+ * Return the lowest commitment level
+ * obtained by any of the RPCs.
+ */
+ if (committed == NFSWRITE_FILESYNC)
+ committed = commit;
+ else if (committed == NFSWRITE_DATASYNC &&
+ commit == NFSWRITE_UNSTABLE)
+ committed = commit;
+ NFSLOCKMNT(nmp);
+ if (!NFSHASWRITEVERF(nmp)) {
+ NFSBCOPY((caddr_t)tl,
+ (caddr_t)&nmp->nm_verf[0],
+ NFSX_VERF);
+ NFSSETWRITEVERF(nmp);
+ } else if (NFSBCMP(tl, nmp->nm_verf,
+ NFSX_VERF)) {
+ *must_commit = 1;
+ NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF);
+ }
+ NFSUNLOCKMNT(nmp);
+ }
+ if (nd->nd_flag & ND_NFSV4)
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) {
+ error = nfsm_loadattr(nd, nap);
+ if (!error)
+ *attrflagp = NFS_LATTR_NOSHRINK;
+ }
+ } else {
+ error = nd->nd_repstat;
+ }
+ if (error)
+ goto nfsmout;
+ NFSWRITERPC_SETTIME(wccflag, np, nap, (nd->nd_flag & ND_NFSV4));
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ tsiz -= len;
+ }
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ *iomode = committed;
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ return (error);
+}
+
+/*
+ * nfs mknod rpc
+ * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the
+ * mode set to specify the file type and the size field for rdev.
+ */
+APPLESTATIC int
+nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p,
+ struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp,
+ int *attrflagp, int *dattrflagp, void *dstuff)
+{
+ u_int32_t *tl;
+ int error = 0;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ nfsattrbit_t attrbits;
+
+ *nfhpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp);
+ if (nd->nd_flag & ND_NFSV4) {
+ if (vtyp == VBLK || vtyp == VCHR) {
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = vtonfsv34_type(vtyp);
+ *tl++ = txdr_unsigned(NFSMAJOR(rdev));
+ *tl = txdr_unsigned(NFSMINOR(rdev));
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = vtonfsv34_type(vtyp);
+ }
+ }
+ (void) nfsm_strtom(nd, name, namelen);
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = vtonfsv34_type(vtyp);
+ }
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4))
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ if ((nd->nd_flag & ND_NFSV3) &&
+ (vtyp == VCHR || vtyp == VBLK)) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSMAJOR(rdev));
+ *tl = txdr_unsigned(NFSMINOR(rdev));
+ }
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSGETATTR_ATTRBIT(&attrbits);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ if (nd->nd_flag & ND_NFSV2)
+ nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV4)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (!nd->nd_repstat) {
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ if (error)
+ goto nfsmout;
+ }
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ if (error)
+ goto nfsmout;
+ }
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (!error && nd->nd_repstat)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs file create call
+ * Mostly just call the approriate routine. (I separated out v4, so that
+ * error recovery wouldn't be as difficult.)
+ */
+APPLESTATIC int
+nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p,
+ struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp,
+ int *attrflagp, int *dattrflagp, void *dstuff)
+{
+ int error = 0, newone, expireret = 0, retrycnt, unlocked;
+ struct nfsclowner *owp;
+ struct nfscldeleg *dp;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp));
+ u_int32_t clidrev;
+
+ if (NFSHASNFSV4(nmp)) {
+ retrycnt = 0;
+ do {
+ dp = NULL;
+ error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE |
+ NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone,
+ NULL, 1);
+ if (error)
+ return (error);
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ else
+ clidrev = 0;
+ if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 ||
+ nfs_numnfscbd == 0 || retrycnt > 0)
+ error = nfsrpc_createv4(dvp, name, namelen, vap, cverf,
+ fmode, owp, &dp, cred, p, dnap, nnap, nfhpp,
+ attrflagp, dattrflagp, dstuff, &unlocked);
+ else
+ error = nfsrpc_getcreatelayout(dvp, name, namelen, vap,
+ cverf, fmode, owp, &dp, cred, p, dnap, nnap, nfhpp,
+ attrflagp, dattrflagp, dstuff, &unlocked);
+ /*
+ * There is no need to invalidate cached attributes here,
+ * since new post-delegation issue attributes are always
+ * returned by nfsrpc_createv4() and these will update the
+ * attribute cache.
+ */
+ if (dp != NULL)
+ (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp,
+ (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp);
+ nfscl_ownerrelease(nmp, owp, error, newone, unlocked);
+ if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_open");
+ } else if ((error == NFSERR_EXPIRED ||
+ error == NFSERR_BADSTATEID) && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ retrycnt++;
+ }
+ } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4));
+ if (error && retrycnt >= 4)
+ error = EIO;
+ } else {
+ error = nfsrpc_createv23(dvp, name, namelen, vap, cverf,
+ fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp,
+ dstuff);
+ }
+ return (error);
+}
+
+/*
+ * The create rpc for v2 and 3.
+ */
+static int
+nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p,
+ struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp,
+ int *attrflagp, int *dattrflagp, void *dstuff)
+{
+ u_int32_t *tl;
+ int error = 0;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+
+ *nfhpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp);
+ (void) nfsm_strtom(nd, name, namelen);
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ if (fmode & O_EXCL) {
+ *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
+ *tl++ = cverf.lval[0];
+ *tl = cverf.lval[1];
+ } else {
+ *tl = txdr_unsigned(NFSCREATE_UNCHECKED);
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ }
+ } else {
+ nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0);
+ }
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ if (error)
+ goto nfsmout;
+ }
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+static int
+nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
+ int *dattrflagp, void *dstuff, int *unlockedp)
+{
+ u_int32_t *tl;
+ int error = 0, deleg, newone, ret, acesize, limitby;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsclopen *op;
+ struct nfscldeleg *dp = NULL;
+ struct nfsnode *np;
+ struct nfsfh *nfhp;
+ nfsattrbit_t attrbits;
+ nfsv4stateid_t stateid;
+ u_int32_t rflags;
+ struct nfsmount *nmp;
+ struct nfsclsession *tsep;
+
+ nmp = VFSTONFS(dvp->v_mount);
+ np = VTONFS(dvp);
+ *unlockedp = 0;
+ *nfhpp = NULL;
+ *dpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp);
+ /*
+ * For V4, this is actually an Open op.
+ */
+ NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(owp->nfsow_seqid);
+ *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE |
+ NFSV4OPEN_ACCESSREAD);
+ *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OPEN_CREATE);
+ if (fmode & O_EXCL) {
+ if (NFSHASNFSV4N(nmp)) {
+ if (NFSHASSESSPERSIST(nmp)) {
+ /* Use GUARDED for persistent sessions. */
+ *tl = txdr_unsigned(NFSCREATE_GUARDED);
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ } else {
+ /* Otherwise, use EXCLUSIVE4_1. */
+ *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE41);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
+ *tl++ = cverf.lval[0];
+ *tl = cverf.lval[1];
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ }
+ } else {
+ /* NFSv4.0 */
+ *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
+ *tl++ = cverf.lval[0];
+ *tl = cverf.lval[1];
+ }
+ } else {
+ *tl = txdr_unsigned(NFSCREATE_UNCHECKED);
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ }
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL);
+ (void) nfsm_strtom(nd, name, namelen);
+ /* Get the new file's handle and attributes. */
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ /* Get the directory's post-op attributes. */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ NFSCL_INCRSEQID(owp->nfsow_seqid, nd);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ 6 * NFSX_UNSIGNED);
+ stateid.seqid = *tl++;
+ stateid.other[0] = *tl++;
+ stateid.other[1] = *tl++;
+ stateid.other[2] = *tl;
+ rflags = fxdr_unsigned(u_int32_t, *(tl + 6));
+ (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ deleg = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEREAD ||
+ deleg == NFSV4OPEN_DELEGATEWRITE) {
+ if (!(owp->nfsow_clp->nfsc_flags &
+ NFSCLFLAGS_FIRSTDELEG))
+ owp->nfsow_clp->nfsc_flags |=
+ (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG);
+ dp = malloc(
+ sizeof (struct nfscldeleg) + NFSX_V4FHMAX,
+ M_NFSCLDELEG, M_WAITOK);
+ LIST_INIT(&dp->nfsdl_owner);
+ LIST_INIT(&dp->nfsdl_lock);
+ dp->nfsdl_clp = owp->nfsow_clp;
+ newnfs_copyincred(cred, &dp->nfsdl_cred);
+ nfscl_lockinit(&dp->nfsdl_rwlock);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ dp->nfsdl_stateid.seqid = *tl++;
+ dp->nfsdl_stateid.other[0] = *tl++;
+ dp->nfsdl_stateid.other[1] = *tl++;
+ dp->nfsdl_stateid.other[2] = *tl++;
+ ret = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEWRITE) {
+ dp->nfsdl_flags = NFSCLDL_WRITE;
+ /*
+ * Indicates how much the file can grow.
+ */
+ NFSM_DISSECT(tl, u_int32_t *,
+ 3 * NFSX_UNSIGNED);
+ limitby = fxdr_unsigned(int, *tl++);
+ switch (limitby) {
+ case NFSV4OPEN_LIMITSIZE:
+ dp->nfsdl_sizelimit = fxdr_hyper(tl);
+ break;
+ case NFSV4OPEN_LIMITBLOCKS:
+ dp->nfsdl_sizelimit =
+ fxdr_unsigned(u_int64_t, *tl++);
+ dp->nfsdl_sizelimit *=
+ fxdr_unsigned(u_int64_t, *tl);
+ break;
+ default:
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ } else {
+ dp->nfsdl_flags = NFSCLDL_READ;
+ }
+ if (ret)
+ dp->nfsdl_flags |= NFSCLDL_RECALL;
+ error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret,
+ &acesize, p);
+ if (error)
+ goto nfsmout;
+ } else if (deleg != NFSV4OPEN_DELEGATENONE) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ if (error)
+ goto nfsmout;
+ /* Get rid of the PutFH and Getattr status values. */
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ /* Load the directory attributes. */
+ error = nfsm_loadattr(nd, dnap);
+ if (error)
+ goto nfsmout;
+ *dattrflagp = 1;
+ if (dp != NULL && *attrflagp) {
+ dp->nfsdl_change = nnap->na_filerev;
+ dp->nfsdl_modtime = nnap->na_mtime;
+ dp->nfsdl_flags |= NFSCLDL_MODTIMESET;
+ }
+ /*
+ * We can now complete the Open state.
+ */
+ nfhp = *nfhpp;
+ if (dp != NULL) {
+ dp->nfsdl_fhlen = nfhp->nfh_len;
+ NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len);
+ }
+ /*
+ * Get an Open structure that will be
+ * attached to the OpenOwner, acquired already.
+ */
+ error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len,
+ (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0,
+ cred, p, NULL, &op, &newone, NULL, 0);
+ if (error)
+ goto nfsmout;
+ op->nfso_stateid = stateid;
+ newnfs_copyincred(cred, &op->nfso_cred);
+ if ((rflags & NFSV4OPEN_RESULTCONFIRM)) {
+ do {
+ ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh,
+ nfhp->nfh_len, op, cred, p);
+ if (ret == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, ret, "nfs_create");
+ } while (ret == NFSERR_DELAY);
+ error = ret;
+ }
+
+ /*
+ * If the server is handing out delegations, but we didn't
+ * get one because an OpenConfirm was required, try the
+ * Open again, to get a delegation. This is a harmless no-op,
+ * from a server's point of view.
+ */
+ if ((rflags & NFSV4OPEN_RESULTCONFIRM) &&
+ (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) &&
+ !error && dp == NULL) {
+ do {
+ ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp,
+ np->n_fhp->nfh_fh, np->n_fhp->nfh_len,
+ nfhp->nfh_fh, nfhp->nfh_len,
+ (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op,
+ name, namelen, &dp, 0, 0x0, cred, p, 0, 1);
+ if (ret == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, ret, "nfs_crt2");
+ } while (ret == NFSERR_DELAY);
+ if (ret) {
+ if (dp != NULL) {
+ free(dp, M_NFSCLDELEG);
+ dp = NULL;
+ }
+ if (ret == NFSERR_STALECLIENTID ||
+ ret == NFSERR_STALEDONTRECOVER ||
+ ret == NFSERR_BADSESSION)
+ error = ret;
+ }
+ }
+ nfscl_openrelease(nmp, op, error, newone);
+ *unlockedp = 1;
+ }
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALECLIENTID)
+ nfscl_initiate_recovery(owp->nfsow_clp);
+nfsmout:
+ if (!error)
+ *dpp = dp;
+ else if (dp != NULL)
+ free(dp, M_NFSCLDELEG);
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Nfs remove rpc
+ */
+APPLESTATIC int
+nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp,
+ void *dstuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+ nfsv4stateid_t dstateid;
+ int error, ret = 0, i;
+
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ nmp = VFSTONFS(vnode_mount(dvp));
+tryagain:
+ if (NFSHASNFSV4(nmp) && ret == 0) {
+ ret = nfscl_removedeleg(vp, p, &dstateid);
+ if (ret == 1) {
+ NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = dstateid.seqid;
+ *tl++ = dstateid.other[0];
+ *tl++ = dstateid.other[1];
+ *tl++ = dstateid.other[2];
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ np = VTONFS(dvp);
+ (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_REMOVE);
+ }
+ } else {
+ ret = 0;
+ }
+ if (ret == 0)
+ NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp);
+ (void) nfsm_strtom(nd, name, namelen);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+ /* For NFSv4, parse out any Delereturn replies. */
+ if (ret > 0 && nd->nd_repstat != 0 &&
+ (nd->nd_flag & ND_NOMOREDATA)) {
+ /*
+ * If the Delegreturn failed, try again without
+ * it. The server will Recall, as required.
+ */
+ mbuf_freem(nd->nd_mrep);
+ goto tryagain;
+ }
+ for (i = 0; i < (ret * 2); i++) {
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) ==
+ ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1))
+ nd->nd_flag |= ND_NOMOREDATA;
+ }
+ }
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ }
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do an nfs rename rpc.
+ */
+APPLESTATIC int
+nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen,
+ vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap,
+ int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ struct nfsnode *np;
+ nfsattrbit_t attrbits;
+ nfsv4stateid_t fdstateid, tdstateid;
+ int error = 0, ret = 0, gottd = 0, gotfd = 0, i;
+
+ *fattrflagp = 0;
+ *tattrflagp = 0;
+ nmp = VFSTONFS(vnode_mount(fdvp));
+ if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+tryagain:
+ if (NFSHASNFSV4(nmp) && ret == 0) {
+ ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp,
+ &tdstateid, &gottd, p);
+ if (gotfd && gottd) {
+ NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp);
+ } else if (gotfd) {
+ NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp);
+ } else if (gottd) {
+ NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp);
+ }
+ if (gotfd) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = fdstateid.seqid;
+ *tl++ = fdstateid.other[0];
+ *tl++ = fdstateid.other[1];
+ *tl = fdstateid.other[2];
+ if (gottd) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ np = VTONFS(tvp);
+ (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_DELEGRETURN);
+ }
+ }
+ if (gottd) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = tdstateid.seqid;
+ *tl++ = tdstateid.other[0];
+ *tl++ = tdstateid.other[1];
+ *tl = tdstateid.other[2];
+ }
+ if (ret > 0) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ np = VTONFS(fdvp);
+ (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_SAVEFH);
+ }
+ } else {
+ ret = 0;
+ }
+ if (ret == 0)
+ NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSWCCATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh,
+ VTONFS(tdvp)->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ nd->nd_flag |= ND_V4WCCATTR;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_RENAME);
+ }
+ (void) nfsm_strtom(nd, fnameptr, fnamelen);
+ if (!(nd->nd_flag & ND_NFSV4))
+ (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh,
+ VTONFS(tdvp)->n_fhp->nfh_len, 0);
+ (void) nfsm_strtom(nd, tnameptr, tnamelen);
+ error = nfscl_request(nd, fdvp, p, cred, fstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
+ /* For NFSv4, parse out any Delereturn replies. */
+ if (ret > 0 && nd->nd_repstat != 0 &&
+ (nd->nd_flag & ND_NOMOREDATA)) {
+ /*
+ * If the Delegreturn failed, try again without
+ * it. The server will Recall, as required.
+ */
+ mbuf_freem(nd->nd_mrep);
+ goto tryagain;
+ }
+ for (i = 0; i < (ret * 2); i++) {
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) ==
+ ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1)) {
+ if (i == 0 && ret > 1) {
+ /*
+ * If the Delegreturn failed, try again
+ * without it. The server will Recall, as
+ * required.
+ * If ret > 1, the first iteration of this
+ * loop is the second DelegReturn result.
+ */
+ mbuf_freem(nd->nd_mrep);
+ goto tryagain;
+ } else {
+ nd->nd_flag |= ND_NOMOREDATA;
+ }
+ }
+ }
+ }
+ /* Now, the first wcc attribute reply. */
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1))
+ nd->nd_flag |= ND_NOMOREDATA;
+ }
+ error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL,
+ fstuff);
+ /* and the second wcc attribute reply. */
+ if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 &&
+ !error) {
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1))
+ nd->nd_flag |= ND_NOMOREDATA;
+ }
+ if (!error)
+ error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp,
+ NULL, tstuff);
+ }
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs hard link create rpc
+ */
+APPLESTATIC int
+nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ nfsattrbit_t attrbits;
+ int error = 0;
+
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_LINK, vp);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ }
+ (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh,
+ VTONFS(dvp)->n_fhp->nfh_len, 0);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSWCCATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ nd->nd_flag |= ND_V4WCCATTR;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_LINK);
+ }
+ (void) nfsm_strtom(nd, name, namelen);
+ error = nfscl_request(nd, vp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3) {
+ error = nfscl_postop_attr(nd, nap, attrflagp, dstuff);
+ if (!error)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp,
+ NULL, dstuff);
+ } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) {
+ /*
+ * First, parse out the PutFH and Getattr result.
+ */
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (!(*(tl + 1)))
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ if (*(tl + 1))
+ nd->nd_flag |= ND_NOMOREDATA;
+ /*
+ * Get the pre-op attributes.
+ */
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ }
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs symbolic link create rpc
+ */
+APPLESTATIC int
+nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target,
+ struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
+ int *dattrflagp, void *dstuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ int slen, error = 0;
+
+ *nfhpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ nmp = VFSTONFS(vnode_mount(dvp));
+ slen = strlen(target);
+ if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFLNK);
+ (void) nfsm_strtom(nd, target, slen);
+ }
+ (void) nfsm_strtom(nd, name, namelen);
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4))
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ if (!(nd->nd_flag & ND_NFSV4))
+ (void) nfsm_strtom(nd, target, slen);
+ if (nd->nd_flag & ND_NFSV2)
+ nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV4)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if ((nd->nd_flag & ND_NFSV3) && !error) {
+ if (!nd->nd_repstat)
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ if (!error)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp,
+ NULL, dstuff);
+ }
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ /*
+ * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry.
+ * Only do this if vfs.nfs.ignore_eexist is set.
+ * Never do this for NFSv4.1 or later minor versions, since sessions
+ * should guarantee "exactly once" RPC semantics.
+ */
+ if (error == EEXIST && nfsignore_eexist != 0 && (!NFSHASNFSV4(nmp) ||
+ nmp->nm_minorvers == 0))
+ error = 0;
+ return (error);
+}
+
+/*
+ * nfs make dir rpc
+ */
+APPLESTATIC int
+nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
+ int *dattrflagp, void *dstuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ nfsattrbit_t attrbits;
+ int error = 0;
+ struct nfsfh *fhp;
+ struct nfsmount *nmp;
+
+ *nfhpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ nmp = VFSTONFS(vnode_mount(dvp));
+ fhp = VTONFS(dvp)->n_fhp;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFDIR);
+ }
+ (void) nfsm_strtom(nd, name, namelen);
+ nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0);
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSGETATTR_ATTRBIT(&attrbits);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ (void) nfsm_fhtom(nd, fhp->nfh_fh, fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV4)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (!nd->nd_repstat && !error) {
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ }
+ if (!error)
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ if (error == 0 && (nd->nd_flag & ND_NFSV4) != 0) {
+ /* Get rid of the PutFH and Getattr status values. */
+ NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
+ /* Load the directory attributes. */
+ error = nfsm_loadattr(nd, dnap);
+ if (error == 0)
+ *dattrflagp = 1;
+ }
+ }
+ if ((nd->nd_flag & ND_NFSV3) && !error)
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ /*
+ * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry.
+ * Only do this if vfs.nfs.ignore_eexist is set.
+ * Never do this for NFSv4.1 or later minor versions, since sessions
+ * should guarantee "exactly once" RPC semantics.
+ */
+ if (error == EEXIST && nfsignore_eexist != 0 && (!NFSHASNFSV4(nmp) ||
+ nmp->nm_minorvers == 0))
+ error = 0;
+ return (error);
+}
+
+/*
+ * nfs remove directory call
+ */
+APPLESTATIC int
+nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error = 0;
+
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp);
+ (void) nfsm_strtom(nd, name, namelen);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4))
+ error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ /*
+ * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry.
+ */
+ if (error == ENOENT)
+ error = 0;
+ return (error);
+}
+
+/*
+ * Readdir rpc.
+ * Always returns with either uio_resid unchanged, if you are at the
+ * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks
+ * filled in.
+ * I felt this would allow caching of directory blocks more easily
+ * than returning a pertially filled block.
+ * Directory offset cookies:
+ * Oh my, what to do with them...
+ * I can think of three ways to deal with them:
+ * 1 - have the layer above these RPCs maintain a map between logical
+ * directory byte offsets and the NFS directory offset cookies
+ * 2 - pass the opaque directory offset cookies up into userland
+ * and let the libc functions deal with them, via the system call
+ * 3 - return them to userland in the "struct dirent", so future versions
+ * of libc can use them and do whatever is necessary to make things work
+ * above these rpc calls, in the meantime
+ * For now, I do #3 by "hiding" the directory offset cookies after the
+ * d_name field in struct dirent. This is space inside d_reclen that
+ * will be ignored by anything that doesn't know about them.
+ * The directory offset cookies are filled in as the last 8 bytes of
+ * each directory entry, after d_name. Someday, the userland libc
+ * functions may be able to use these. In the meantime, it satisfies
+ * OpenBSD's requirements for cookies being returned.
+ * If expects the directory offset cookie for the read to be in uio_offset
+ * and returns the one for the next entry after this directory block in
+ * there, as well.
+ */
+APPLESTATIC int
+nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp,
+ int *eofp, void *stuff)
+{
+ int len, left;
+ struct dirent *dp = NULL;
+ u_int32_t *tl;
+ nfsquad_t cookie, ncookie;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsnode *dnp = VTONFS(vp);
+ struct nfsvattr nfsva;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1;
+ int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0;
+ u_int64_t dotfileid, dotdotfileid = 0, fakefileno = UINT64_MAX;
+ char *cp;
+ nfsattrbit_t attrbits, dattrbits;
+ u_int32_t rderr, *tl2 = NULL;
+ size_t tresid;
+
+ KASSERT(uiop->uio_iovcnt == 1 &&
+ (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0,
+ ("nfs readdirrpc bad uio"));
+ ncookie.lval[0] = ncookie.lval[1] = 0;
+ /*
+ * There is no point in reading a lot more than uio_resid, however
+ * adding one additional DIRBLKSIZ makes sense. Since uio_resid
+ * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this
+ * will never make readsize > nm_readdirsize.
+ */
+ readsize = nmp->nm_readdirsize;
+ if (readsize > uio_uio_resid(uiop))
+ readsize = uio_uio_resid(uiop) + DIRBLKSIZ;
+
+ *attrflagp = 0;
+ if (eofp)
+ *eofp = 0;
+ tresid = uio_uio_resid(uiop);
+ cookie.lval[0] = cookiep->nfsuquad[0];
+ cookie.lval[1] = cookiep->nfsuquad[1];
+ nd->nd_mrep = NULL;
+
+ /*
+ * For NFSv4, first create the "." and ".." entries.
+ */
+ if (NFSHASNFSV4(nmp)) {
+ reqsize = 6 * NFSX_UNSIGNED;
+ NFSGETATTR_ATTRBIT(&dattrbits);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE);
+ if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr,
+ NFSATTRBIT_MOUNTEDONFILEID)) {
+ NFSSETBIT_ATTRBIT(&attrbits,
+ NFSATTRBIT_MOUNTEDONFILEID);
+ gotmnton = 1;
+ } else {
+ /*
+ * Must fake it. Use the fileno, except when the
+ * fsid is != to that of the directory. For that
+ * case, generate a fake fileno that is not the same.
+ */
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID);
+ gotmnton = 0;
+ }
+
+ /*
+ * Joy, oh joy. For V4 we get to hand craft '.' and '..'.
+ */
+ if (uiop->uio_offset == 0) {
+ NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ dotfileid = 0; /* Fake out the compiler. */
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ error = nfsm_loadattr(nd, &nfsva);
+ if (error != 0)
+ goto nfsmout;
+ dotfileid = nfsva.na_fileid;
+ }
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *(tl + 4));
+ if (len > 0 && len <= NFSX_V4FHMAX)
+ error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+ else
+ error = EPERM;
+ if (!error) {
+ NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED);
+ nfsva.na_mntonfileno = UINT64_MAX;
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, NULL, p, cred);
+ if (error) {
+ dotdotfileid = dotfileid;
+ } else if (gotmnton) {
+ if (nfsva.na_mntonfileno != UINT64_MAX)
+ dotdotfileid = nfsva.na_mntonfileno;
+ else
+ dotdotfileid = nfsva.na_fileid;
+ } else if (nfsva.na_filesid[0] ==
+ dnp->n_vattr.na_filesid[0] &&
+ nfsva.na_filesid[1] ==
+ dnp->n_vattr.na_filesid[1]) {
+ dotdotfileid = nfsva.na_fileid;
+ } else {
+ do {
+ fakefileno--;
+ } while (fakefileno ==
+ nfsva.na_fileid);
+ dotdotfileid = fakefileno;
+ }
+ }
+ } else if (nd->nd_repstat == NFSERR_NOENT) {
+ /*
+ * Lookupp returns NFSERR_NOENT when we are
+ * at the root, so just use the current dir.
+ */
+ nd->nd_repstat = 0;
+ dotdotfileid = dotfileid;
+ } else {
+ error = nd->nd_repstat;
+ }
+ mbuf_freem(nd->nd_mrep);
+ if (error)
+ return (error);
+ nd->nd_mrep = NULL;
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_type = DT_DIR;
+ dp->d_fileno = dotfileid;
+ dp->d_namlen = 1;
+ *((uint64_t *)dp->d_name) = 0; /* Zero pad it. */
+ dp->d_name[0] = '.';
+ dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER;
+ /*
+ * Just make these offset cookie 0.
+ */
+ tl = (u_int32_t *)&dp->d_name[8];
+ *tl++ = 0;
+ *tl = 0;
+ blksiz += dp->d_reclen;
+ uio_uio_resid_add(uiop, -(dp->d_reclen));
+ uiop->uio_offset += dp->d_reclen;
+ uio_iov_base_add(uiop, dp->d_reclen);
+ uio_iov_len_add(uiop, -(dp->d_reclen));
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_type = DT_DIR;
+ dp->d_fileno = dotdotfileid;
+ dp->d_namlen = 2;
+ *((uint64_t *)dp->d_name) = 0;
+ dp->d_name[0] = '.';
+ dp->d_name[1] = '.';
+ dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER;
+ /*
+ * Just make these offset cookie 0.
+ */
+ tl = (u_int32_t *)&dp->d_name[8];
+ *tl++ = 0;
+ *tl = 0;
+ blksiz += dp->d_reclen;
+ uio_uio_resid_add(uiop, -(dp->d_reclen));
+ uiop->uio_offset += dp->d_reclen;
+ uio_iov_base_add(uiop, dp->d_reclen);
+ uio_iov_len_add(uiop, -(dp->d_reclen));
+ }
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR);
+ } else {
+ reqsize = 5 * NFSX_UNSIGNED;
+ }
+
+
+ /*
+ * Loop around doing readdir rpc's of size readsize.
+ * The stopping criteria is EOF or buffer full.
+ */
+ while (more_dirs && bigenough) {
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_READDIR, vp);
+ if (nd->nd_flag & ND_NFSV2) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = cookie.lval[1];
+ *tl = txdr_unsigned(readsize);
+ } else {
+ NFSM_BUILD(tl, u_int32_t *, reqsize);
+ *tl++ = cookie.lval[0];
+ *tl++ = cookie.lval[1];
+ if (cookie.qval == 0) {
+ *tl++ = 0;
+ *tl++ = 0;
+ } else {
+ NFSLOCKNODE(dnp);
+ *tl++ = dnp->n_cookieverf.nfsuquad[0];
+ *tl++ = dnp->n_cookieverf.nfsuquad[1];
+ NFSUNLOCKNODE(dnp);
+ }
+ if (nd->nd_flag & ND_NFSV4) {
+ *tl++ = txdr_unsigned(readsize);
+ *tl = txdr_unsigned(readsize);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &dattrbits);
+ } else {
+ *tl = txdr_unsigned(readsize);
+ }
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (!(nd->nd_flag & ND_NFSV2)) {
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_postop_attr(nd, nap, attrflagp,
+ stuff);
+ if (!nd->nd_repstat && !error) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
+ NFSLOCKNODE(dnp);
+ dnp->n_cookieverf.nfsuquad[0] = *tl++;
+ dnp->n_cookieverf.nfsuquad[1] = *tl;
+ NFSUNLOCKNODE(dnp);
+ }
+ }
+ if (nd->nd_repstat || error) {
+ if (!error)
+ error = nd->nd_repstat;
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ more_dirs = fxdr_unsigned(int, *tl);
+ if (!more_dirs)
+ tryformoredirs = 0;
+
+ /* loop through the dir entries, doctoring them to 4bsd form */
+ while (more_dirs && bigenough) {
+ if (nd->nd_flag & ND_NFSV4) {
+ NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED);
+ ncookie.lval[0] = *tl++;
+ ncookie.lval[1] = *tl++;
+ len = fxdr_unsigned(int, *tl);
+ } else if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED);
+ nfsva.na_fileid = fxdr_hyper(tl);
+ tl += 2;
+ len = fxdr_unsigned(int, *tl);
+ } else {
+ NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED);
+ nfsva.na_fileid = fxdr_unsigned(uint64_t,
+ *tl++);
+ len = fxdr_unsigned(int, *tl);
+ }
+ if (len <= 0 || len > NFS_MAXNAMLEN) {
+ error = EBADRPC;
+ goto nfsmout;
+ }
+ tlen = roundup2(len, 8);
+ if (tlen == len)
+ tlen += 8; /* To ensure null termination. */
+ left = DIRBLKSIZ - blksiz;
+ if (_GENERIC_DIRLEN(len) + NFSX_HYPER > left) {
+ NFSBZERO(uio_iov_base(uiop), left);
+ dp->d_reclen += left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -(left));
+ uio_uio_resid_add(uiop, -(left));
+ uiop->uio_offset += left;
+ blksiz = 0;
+ }
+ if (_GENERIC_DIRLEN(len) + NFSX_HYPER >
+ uio_uio_resid(uiop))
+ bigenough = 0;
+ if (bigenough) {
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_namlen = len;
+ dp->d_reclen = _GENERIC_DIRLEN(len) +
+ NFSX_HYPER;
+ dp->d_type = DT_UNKNOWN;
+ blksiz += dp->d_reclen;
+ if (blksiz == DIRBLKSIZ)
+ blksiz = 0;
+ uio_uio_resid_add(uiop, -(DIRHDSIZ));
+ uiop->uio_offset += DIRHDSIZ;
+ uio_iov_base_add(uiop, DIRHDSIZ);
+ uio_iov_len_add(uiop, -(DIRHDSIZ));
+ error = nfsm_mbufuio(nd, uiop, len);
+ if (error)
+ goto nfsmout;
+ cp = uio_iov_base(uiop);
+ tlen -= len;
+ NFSBZERO(cp, tlen);
+ cp += tlen; /* points to cookie storage */
+ tl2 = (u_int32_t *)cp;
+ uio_iov_base_add(uiop, (tlen + NFSX_HYPER));
+ uio_iov_len_add(uiop, -(tlen + NFSX_HYPER));
+ uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER));
+ uiop->uio_offset += (tlen + NFSX_HYPER);
+ } else {
+ error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+ if (error)
+ goto nfsmout;
+ }
+ if (nd->nd_flag & ND_NFSV4) {
+ rderr = 0;
+ nfsva.na_mntonfileno = UINT64_MAX;
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, &rderr, p, cred);
+ if (error)
+ goto nfsmout;
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ } else if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED);
+ ncookie.lval[0] = *tl++;
+ ncookie.lval[1] = *tl++;
+ } else {
+ NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED);
+ ncookie.lval[0] = 0;
+ ncookie.lval[1] = *tl++;
+ }
+ if (bigenough) {
+ if (nd->nd_flag & ND_NFSV4) {
+ if (rderr) {
+ dp->d_fileno = 0;
+ } else {
+ if (gotmnton) {
+ if (nfsva.na_mntonfileno != UINT64_MAX)
+ dp->d_fileno = nfsva.na_mntonfileno;
+ else
+ dp->d_fileno = nfsva.na_fileid;
+ } else if (nfsva.na_filesid[0] ==
+ dnp->n_vattr.na_filesid[0] &&
+ nfsva.na_filesid[1] ==
+ dnp->n_vattr.na_filesid[1]) {
+ dp->d_fileno = nfsva.na_fileid;
+ } else {
+ do {
+ fakefileno--;
+ } while (fakefileno ==
+ nfsva.na_fileid);
+ dp->d_fileno = fakefileno;
+ }
+ dp->d_type = vtonfs_dtype(nfsva.na_type);
+ }
+ } else {
+ dp->d_fileno = nfsva.na_fileid;
+ }
+ *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] =
+ ncookie.lval[0];
+ *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] =
+ ncookie.lval[1];
+ }
+ more_dirs = fxdr_unsigned(int, *tl);
+ }
+ /*
+ * If at end of rpc data, get the eof boolean
+ */
+ if (!more_dirs) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ eof = fxdr_unsigned(int, *tl);
+ if (tryformoredirs)
+ more_dirs = !eof;
+ if (nd->nd_flag & ND_NFSV4) {
+ error = nfscl_postop_attr(nd, nap, attrflagp,
+ stuff);
+ if (error)
+ goto nfsmout;
+ }
+ }
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ }
+ /*
+ * Fill last record, iff any, out to a multiple of DIRBLKSIZ
+ * by increasing d_reclen for the last record.
+ */
+ if (blksiz > 0) {
+ left = DIRBLKSIZ - blksiz;
+ NFSBZERO(uio_iov_base(uiop), left);
+ dp->d_reclen += left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -(left));
+ uio_uio_resid_add(uiop, -(left));
+ uiop->uio_offset += left;
+ }
+
+ /*
+ * If returning no data, assume end of file.
+ * If not bigenough, return not end of file, since you aren't
+ * returning all the data
+ * Otherwise, return the eof flag from the server.
+ */
+ if (eofp) {
+ if (tresid == ((size_t)(uio_uio_resid(uiop))))
+ *eofp = 1;
+ else if (!bigenough)
+ *eofp = 0;
+ else
+ *eofp = eof;
+ }
+
+ /*
+ * Add extra empty records to any remaining DIRBLKSIZ chunks.
+ */
+ while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) {
+ dp = (struct dirent *)uio_iov_base(uiop);
+ NFSBZERO(dp, DIRBLKSIZ);
+ dp->d_type = DT_UNKNOWN;
+ tl = (u_int32_t *)&dp->d_name[4];
+ *tl++ = cookie.lval[0];
+ *tl = cookie.lval[1];
+ dp->d_reclen = DIRBLKSIZ;
+ uio_iov_base_add(uiop, DIRBLKSIZ);
+ uio_iov_len_add(uiop, -(DIRBLKSIZ));
+ uio_uio_resid_add(uiop, -(DIRBLKSIZ));
+ uiop->uio_offset += DIRBLKSIZ;
+ }
+
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+#ifndef APPLE
+/*
+ * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir().
+ * (Also used for NFS V4 when mount flag set.)
+ * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.)
+ */
+APPLESTATIC int
+nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp,
+ int *eofp, void *stuff)
+{
+ int len, left;
+ struct dirent *dp = NULL;
+ u_int32_t *tl;
+ vnode_t newvp = NULLVP;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nameidata nami, *ndp = &nami;
+ struct componentname *cnp = &ndp->ni_cnd;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsnode *dnp = VTONFS(vp), *np;
+ struct nfsvattr nfsva;
+ struct nfsfh *nfhp;
+ nfsquad_t cookie, ncookie;
+ int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1;
+ int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0;
+ int isdotdot = 0, unlocknewvp = 0;
+ u_int64_t dotfileid, dotdotfileid = 0, fakefileno = UINT64_MAX;
+ u_int64_t fileno = 0;
+ char *cp;
+ nfsattrbit_t attrbits, dattrbits;
+ size_t tresid;
+ u_int32_t *tl2 = NULL, rderr;
+ struct timespec dctime;
+
+ KASSERT(uiop->uio_iovcnt == 1 &&
+ (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0,
+ ("nfs readdirplusrpc bad uio"));
+ ncookie.lval[0] = ncookie.lval[1] = 0;
+ timespecclear(&dctime);
+ *attrflagp = 0;
+ if (eofp != NULL)
+ *eofp = 0;
+ ndp->ni_dvp = vp;
+ nd->nd_mrep = NULL;
+ cookie.lval[0] = cookiep->nfsuquad[0];
+ cookie.lval[1] = cookiep->nfsuquad[1];
+ tresid = uio_uio_resid(uiop);
+
+ /*
+ * For NFSv4, first create the "." and ".." entries.
+ */
+ if (NFSHASNFSV4(nmp)) {
+ NFSGETATTR_ATTRBIT(&dattrbits);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID);
+ if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr,
+ NFSATTRBIT_MOUNTEDONFILEID)) {
+ NFSSETBIT_ATTRBIT(&attrbits,
+ NFSATTRBIT_MOUNTEDONFILEID);
+ gotmnton = 1;
+ } else {
+ /*
+ * Must fake it. Use the fileno, except when the
+ * fsid is != to that of the directory. For that
+ * case, generate a fake fileno that is not the same.
+ */
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID);
+ gotmnton = 0;
+ }
+
+ /*
+ * Joy, oh joy. For V4 we get to hand craft '.' and '..'.
+ */
+ if (uiop->uio_offset == 0) {
+ NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ dotfileid = 0; /* Fake out the compiler. */
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ error = nfsm_loadattr(nd, &nfsva);
+ if (error != 0)
+ goto nfsmout;
+ dctime = nfsva.na_ctime;
+ dotfileid = nfsva.na_fileid;
+ }
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ len = fxdr_unsigned(int, *(tl + 4));
+ if (len > 0 && len <= NFSX_V4FHMAX)
+ error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+ else
+ error = EPERM;
+ if (!error) {
+ NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED);
+ nfsva.na_mntonfileno = UINT64_MAX;
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, NULL, p, cred);
+ if (error) {
+ dotdotfileid = dotfileid;
+ } else if (gotmnton) {
+ if (nfsva.na_mntonfileno != UINT64_MAX)
+ dotdotfileid = nfsva.na_mntonfileno;
+ else
+ dotdotfileid = nfsva.na_fileid;
+ } else if (nfsva.na_filesid[0] ==
+ dnp->n_vattr.na_filesid[0] &&
+ nfsva.na_filesid[1] ==
+ dnp->n_vattr.na_filesid[1]) {
+ dotdotfileid = nfsva.na_fileid;
+ } else {
+ do {
+ fakefileno--;
+ } while (fakefileno ==
+ nfsva.na_fileid);
+ dotdotfileid = fakefileno;
+ }
+ }
+ } else if (nd->nd_repstat == NFSERR_NOENT) {
+ /*
+ * Lookupp returns NFSERR_NOENT when we are
+ * at the root, so just use the current dir.
+ */
+ nd->nd_repstat = 0;
+ dotdotfileid = dotfileid;
+ } else {
+ error = nd->nd_repstat;
+ }
+ mbuf_freem(nd->nd_mrep);
+ if (error)
+ return (error);
+ nd->nd_mrep = NULL;
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_type = DT_DIR;
+ dp->d_fileno = dotfileid;
+ dp->d_namlen = 1;
+ *((uint64_t *)dp->d_name) = 0; /* Zero pad it. */
+ dp->d_name[0] = '.';
+ dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER;
+ /*
+ * Just make these offset cookie 0.
+ */
+ tl = (u_int32_t *)&dp->d_name[8];
+ *tl++ = 0;
+ *tl = 0;
+ blksiz += dp->d_reclen;
+ uio_uio_resid_add(uiop, -(dp->d_reclen));
+ uiop->uio_offset += dp->d_reclen;
+ uio_iov_base_add(uiop, dp->d_reclen);
+ uio_iov_len_add(uiop, -(dp->d_reclen));
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_type = DT_DIR;
+ dp->d_fileno = dotdotfileid;
+ dp->d_namlen = 2;
+ *((uint64_t *)dp->d_name) = 0;
+ dp->d_name[0] = '.';
+ dp->d_name[1] = '.';
+ dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER;
+ /*
+ * Just make these offset cookie 0.
+ */
+ tl = (u_int32_t *)&dp->d_name[8];
+ *tl++ = 0;
+ *tl = 0;
+ blksiz += dp->d_reclen;
+ uio_uio_resid_add(uiop, -(dp->d_reclen));
+ uiop->uio_offset += dp->d_reclen;
+ uio_iov_base_add(uiop, dp->d_reclen);
+ uio_iov_len_add(uiop, -(dp->d_reclen));
+ }
+ NFSREADDIRPLUS_ATTRBIT(&attrbits);
+ if (gotmnton)
+ NFSSETBIT_ATTRBIT(&attrbits,
+ NFSATTRBIT_MOUNTEDONFILEID);
+ }
+
+ /*
+ * Loop around doing readdir rpc's of size nm_readdirsize.
+ * The stopping criteria is EOF or buffer full.
+ */
+ while (more_dirs && bigenough) {
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp);
+ NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED);
+ *tl++ = cookie.lval[0];
+ *tl++ = cookie.lval[1];
+ if (cookie.qval == 0) {
+ *tl++ = 0;
+ *tl++ = 0;
+ } else {
+ NFSLOCKNODE(dnp);
+ *tl++ = dnp->n_cookieverf.nfsuquad[0];
+ *tl++ = dnp->n_cookieverf.nfsuquad[1];
+ NFSUNLOCKNODE(dnp);
+ }
+ *tl++ = txdr_unsigned(nmp->nm_readdirsize);
+ *tl = txdr_unsigned(nmp->nm_readdirsize);
+ if (nd->nd_flag & ND_NFSV4) {
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ (void) nfsrv_putattrbit(nd, &dattrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3)
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (nd->nd_repstat || error) {
+ if (!error)
+ error = nd->nd_repstat;
+ goto nfsmout;
+ }
+ if ((nd->nd_flag & ND_NFSV3) != 0 && *attrflagp != 0)
+ dctime = nap->na_ctime;
+ NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ NFSLOCKNODE(dnp);
+ dnp->n_cookieverf.nfsuquad[0] = *tl++;
+ dnp->n_cookieverf.nfsuquad[1] = *tl++;
+ NFSUNLOCKNODE(dnp);
+ more_dirs = fxdr_unsigned(int, *tl);
+ if (!more_dirs)
+ tryformoredirs = 0;
+
+ /* loop through the dir entries, doctoring them to 4bsd form */
+ while (more_dirs && bigenough) {
+ NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ if (nd->nd_flag & ND_NFSV4) {
+ ncookie.lval[0] = *tl++;
+ ncookie.lval[1] = *tl++;
+ } else {
+ fileno = fxdr_hyper(tl);
+ tl += 2;
+ }
+ len = fxdr_unsigned(int, *tl);
+ if (len <= 0 || len > NFS_MAXNAMLEN) {
+ error = EBADRPC;
+ goto nfsmout;
+ }
+ tlen = roundup2(len, 8);
+ if (tlen == len)
+ tlen += 8; /* To ensure null termination. */
+ left = DIRBLKSIZ - blksiz;
+ if (_GENERIC_DIRLEN(len) + NFSX_HYPER > left) {
+ NFSBZERO(uio_iov_base(uiop), left);
+ dp->d_reclen += left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -(left));
+ uio_uio_resid_add(uiop, -(left));
+ uiop->uio_offset += left;
+ blksiz = 0;
+ }
+ if (_GENERIC_DIRLEN(len) + NFSX_HYPER >
+ uio_uio_resid(uiop))
+ bigenough = 0;
+ if (bigenough) {
+ dp = (struct dirent *)uio_iov_base(uiop);
+ dp->d_pad0 = dp->d_pad1 = 0;
+ dp->d_off = 0;
+ dp->d_namlen = len;
+ dp->d_reclen = _GENERIC_DIRLEN(len) +
+ NFSX_HYPER;
+ dp->d_type = DT_UNKNOWN;
+ blksiz += dp->d_reclen;
+ if (blksiz == DIRBLKSIZ)
+ blksiz = 0;
+ uio_uio_resid_add(uiop, -(DIRHDSIZ));
+ uiop->uio_offset += DIRHDSIZ;
+ uio_iov_base_add(uiop, DIRHDSIZ);
+ uio_iov_len_add(uiop, -(DIRHDSIZ));
+ cnp->cn_nameptr = uio_iov_base(uiop);
+ cnp->cn_namelen = len;
+ NFSCNHASHZERO(cnp);
+ error = nfsm_mbufuio(nd, uiop, len);
+ if (error)
+ goto nfsmout;
+ cp = uio_iov_base(uiop);
+ tlen -= len;
+ NFSBZERO(cp, tlen);
+ cp += tlen; /* points to cookie storage */
+ tl2 = (u_int32_t *)cp;
+ if (len == 2 && cnp->cn_nameptr[0] == '.' &&
+ cnp->cn_nameptr[1] == '.')
+ isdotdot = 1;
+ else
+ isdotdot = 0;
+ uio_iov_base_add(uiop, (tlen + NFSX_HYPER));
+ uio_iov_len_add(uiop, -(tlen + NFSX_HYPER));
+ uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER));
+ uiop->uio_offset += (tlen + NFSX_HYPER);
+ } else {
+ error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
+ if (error)
+ goto nfsmout;
+ }
+ nfhp = NULL;
+ if (nd->nd_flag & ND_NFSV3) {
+ NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED);
+ ncookie.lval[0] = *tl++;
+ ncookie.lval[1] = *tl++;
+ attrflag = fxdr_unsigned(int, *tl);
+ if (attrflag) {
+ error = nfsm_loadattr(nd, &nfsva);
+ if (error)
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED);
+ if (*tl) {
+ error = nfsm_getfh(nd, &nfhp);
+ if (error)
+ goto nfsmout;
+ }
+ if (!attrflag && nfhp != NULL) {
+ free(nfhp, M_NFSFH);
+ nfhp = NULL;
+ }
+ } else {
+ rderr = 0;
+ nfsva.na_mntonfileno = 0xffffffff;
+ error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, &rderr, p, cred);
+ if (error)
+ goto nfsmout;
+ }
+
+ if (bigenough) {
+ if (nd->nd_flag & ND_NFSV4) {
+ if (rderr) {
+ dp->d_fileno = 0;
+ } else if (gotmnton) {
+ if (nfsva.na_mntonfileno != 0xffffffff)
+ dp->d_fileno = nfsva.na_mntonfileno;
+ else
+ dp->d_fileno = nfsva.na_fileid;
+ } else if (nfsva.na_filesid[0] ==
+ dnp->n_vattr.na_filesid[0] &&
+ nfsva.na_filesid[1] ==
+ dnp->n_vattr.na_filesid[1]) {
+ dp->d_fileno = nfsva.na_fileid;
+ } else {
+ do {
+ fakefileno--;
+ } while (fakefileno ==
+ nfsva.na_fileid);
+ dp->d_fileno = fakefileno;
+ }
+ } else {
+ dp->d_fileno = fileno;
+ }
+ *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] =
+ ncookie.lval[0];
+ *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] =
+ ncookie.lval[1];
+
+ if (nfhp != NULL) {
+ if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len,
+ dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) {
+ VREF(vp);
+ newvp = vp;
+ unlocknewvp = 0;
+ free(nfhp, M_NFSFH);
+ np = dnp;
+ } else if (isdotdot != 0) {
+ /*
+ * Skip doing a nfscl_nget() call for "..".
+ * There's a race between acquiring the nfs
+ * node here and lookups that look for the
+ * directory being read (in the parent).
+ * It would try to get a lock on ".." here,
+ * owning the lock on the directory being
+ * read. Lookup will hold the lock on ".."
+ * and try to acquire the lock on the
+ * directory being read.
+ * If the directory is unlocked/relocked,
+ * then there is a LOR with the buflock
+ * vp is relocked.
+ */
+ free(nfhp, M_NFSFH);
+ } else {
+ error = nfscl_nget(vnode_mount(vp), vp,
+ nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE);
+ if (!error) {
+ newvp = NFSTOV(np);
+ unlocknewvp = 1;
+ }
+ }
+ nfhp = NULL;
+ if (newvp != NULLVP) {
+ error = nfscl_loadattrcache(&newvp,
+ &nfsva, NULL, NULL, 0, 0);
+ if (error) {
+ if (unlocknewvp)
+ vput(newvp);
+ else
+ vrele(newvp);
+ goto nfsmout;
+ }
+ dp->d_type =
+ vtonfs_dtype(np->n_vattr.na_type);
+ ndp->ni_vp = newvp;
+ NFSCNHASH(cnp, HASHINIT);
+ if (cnp->cn_namelen <= NCHNAMLEN &&
+ (newvp->v_type != VDIR ||
+ dctime.tv_sec != 0)) {
+ cache_enter_time(ndp->ni_dvp,
+ ndp->ni_vp, cnp,
+ &nfsva.na_ctime,
+ newvp->v_type != VDIR ? NULL :
+ &dctime);
+ }
+ if (unlocknewvp)
+ vput(newvp);
+ else
+ vrele(newvp);
+ newvp = NULLVP;
+ }
+ }
+ } else if (nfhp != NULL) {
+ free(nfhp, M_NFSFH);
+ }
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ more_dirs = fxdr_unsigned(int, *tl);
+ }
+ /*
+ * If at end of rpc data, get the eof boolean
+ */
+ if (!more_dirs) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ eof = fxdr_unsigned(int, *tl);
+ if (tryformoredirs)
+ more_dirs = !eof;
+ if (nd->nd_flag & ND_NFSV4) {
+ error = nfscl_postop_attr(nd, nap, attrflagp,
+ stuff);
+ if (error)
+ goto nfsmout;
+ }
+ }
+ mbuf_freem(nd->nd_mrep);
+ nd->nd_mrep = NULL;
+ }
+ /*
+ * Fill last record, iff any, out to a multiple of DIRBLKSIZ
+ * by increasing d_reclen for the last record.
+ */
+ if (blksiz > 0) {
+ left = DIRBLKSIZ - blksiz;
+ NFSBZERO(uio_iov_base(uiop), left);
+ dp->d_reclen += left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -(left));
+ uio_uio_resid_add(uiop, -(left));
+ uiop->uio_offset += left;
+ }
+
+ /*
+ * If returning no data, assume end of file.
+ * If not bigenough, return not end of file, since you aren't
+ * returning all the data
+ * Otherwise, return the eof flag from the server.
+ */
+ if (eofp != NULL) {
+ if (tresid == uio_uio_resid(uiop))
+ *eofp = 1;
+ else if (!bigenough)
+ *eofp = 0;
+ else
+ *eofp = eof;
+ }
+
+ /*
+ * Add extra empty records to any remaining DIRBLKSIZ chunks.
+ */
+ while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) {
+ dp = (struct dirent *)uio_iov_base(uiop);
+ NFSBZERO(dp, DIRBLKSIZ);
+ dp->d_type = DT_UNKNOWN;
+ tl = (u_int32_t *)&dp->d_name[4];
+ *tl++ = cookie.lval[0];
+ *tl = cookie.lval[1];
+ dp->d_reclen = DIRBLKSIZ;
+ uio_iov_base_add(uiop, DIRBLKSIZ);
+ uio_iov_len_add(uiop, -(DIRBLKSIZ));
+ uio_uio_resid_add(uiop, -(DIRBLKSIZ));
+ uiop->uio_offset += DIRBLKSIZ;
+ }
+
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+#endif /* !APPLE */
+
+/*
+ * Nfs commit rpc
+ */
+APPLESTATIC int
+nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ nfsattrbit_t attrbits;
+ int error;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp);
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ txdr_hyper(offset, tl);
+ tl += 2;
+ *tl = txdr_unsigned(cnt);
+ if (nd->nd_flag & ND_NFSV4) {
+ /*
+ * And do a Getattr op.
+ */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ }
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff);
+ if (!error && !nd->nd_repstat) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
+ NFSLOCKMNT(nmp);
+ if (NFSBCMP(nmp->nm_verf, tl, NFSX_VERF)) {
+ NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF);
+ nd->nd_repstat = NFSERR_STALEWRITEVERF;
+ }
+ NFSUNLOCKMNT(nmp);
+ if (nd->nd_flag & ND_NFSV4)
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ }
+nfsmout:
+ if (!error && nd->nd_repstat)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * NFS byte range lock rpc.
+ * (Mostly just calls one of the three lower level RPC routines.)
+ */
+APPLESTATIC int
+nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl,
+ int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags)
+{
+ struct nfscllockowner *lp;
+ struct nfsclclient *clp;
+ struct nfsfh *nfhp;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ u_int64_t off, len;
+ off_t start, end;
+ u_int32_t clidrev = 0;
+ int error = 0, newone = 0, expireret = 0, retrycnt, donelocally;
+ int callcnt, dorpc;
+
+ /*
+ * Convert the flock structure into a start and end and do POSIX
+ * bounds checking.
+ */
+ switch (fl->l_whence) {
+ case SEEK_SET:
+ case SEEK_CUR:
+ /*
+ * Caller is responsible for adding any necessary offset
+ * when SEEK_CUR is used.
+ */
+ start = fl->l_start;
+ off = fl->l_start;
+ break;
+ case SEEK_END:
+ start = size + fl->l_start;
+ off = size + fl->l_start;
+ break;
+ default:
+ return (EINVAL);
+ }
+ if (start < 0)
+ return (EINVAL);
+ if (fl->l_len != 0) {
+ end = start + fl->l_len - 1;
+ if (end < start)
+ return (EINVAL);
+ }
+
+ len = fl->l_len;
+ if (len == 0)
+ len = NFS64BITSSET;
+ retrycnt = 0;
+ do {
+ nd->nd_repstat = 0;
+ if (op == F_GETLK) {
+ error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp);
+ if (error)
+ return (error);
+ error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags);
+ if (!error) {
+ clidrev = clp->nfsc_clientidrev;
+ error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred,
+ p, id, flags);
+ } else if (error == -1) {
+ error = 0;
+ }
+ nfscl_clientrelease(clp);
+ } else if (op == F_UNLCK && fl->l_type == F_UNLCK) {
+ /*
+ * We must loop around for all lockowner cases.
+ */
+ callcnt = 0;
+ error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp);
+ if (error)
+ return (error);
+ do {
+ error = nfscl_relbytelock(vp, off, len, cred, p, callcnt,
+ clp, id, flags, &lp, &dorpc);
+ /*
+ * If it returns a NULL lp, we're done.
+ */
+ if (lp == NULL) {
+ if (callcnt == 0)
+ nfscl_clientrelease(clp);
+ else
+ nfscl_releasealllocks(clp, vp, p, id, flags);
+ return (error);
+ }
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ else
+ clidrev = 0;
+ /*
+ * If the server doesn't support Posix lock semantics,
+ * only allow locks on the entire file, since it won't
+ * handle overlapping byte ranges.
+ * There might still be a problem when a lock
+ * upgrade/downgrade (read<->write) occurs, since the
+ * server "might" expect an unlock first?
+ */
+ if (dorpc && (lp->nfsl_open->nfso_posixlock ||
+ (off == 0 && len == NFS64BITSSET))) {
+ /*
+ * Since the lock records will go away, we must
+ * wait for grace and delay here.
+ */
+ do {
+ error = nfsrpc_locku(nd, nmp, lp, off, len,
+ NFSV4LOCKT_READ, cred, p, 0);
+ if ((nd->nd_repstat == NFSERR_GRACE ||
+ nd->nd_repstat == NFSERR_DELAY) &&
+ error == 0)
+ (void) nfs_catnap(PZERO, (int)nd->nd_repstat,
+ "nfs_advlock");
+ } while ((nd->nd_repstat == NFSERR_GRACE ||
+ nd->nd_repstat == NFSERR_DELAY) && error == 0);
+ }
+ callcnt++;
+ } while (error == 0 && nd->nd_repstat == 0);
+ nfscl_releasealllocks(clp, vp, p, id, flags);
+ } else if (op == F_SETLK) {
+ error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p,
+ NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally);
+ if (error || donelocally) {
+ return (error);
+ }
+ if (nmp->nm_clp != NULL)
+ clidrev = nmp->nm_clp->nfsc_clientidrev;
+ else
+ clidrev = 0;
+ nfhp = VTONFS(vp)->n_fhp;
+ if (!lp->nfsl_open->nfso_posixlock &&
+ (off != 0 || len != NFS64BITSSET)) {
+ error = EINVAL;
+ } else {
+ error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh,
+ nfhp->nfh_len, lp, newone, reclaim, off,
+ len, fl->l_type, cred, p, 0);
+ }
+ if (!error)
+ error = nd->nd_repstat;
+ nfscl_lockrelease(lp, error, newone);
+ } else {
+ error = EINVAL;
+ }
+ if (!error)
+ error = nd->nd_repstat;
+ if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID ||
+ error == NFSERR_STALEDONTRECOVER ||
+ error == NFSERR_STALECLIENTID || error == NFSERR_DELAY ||
+ error == NFSERR_BADSESSION) {
+ (void) nfs_catnap(PZERO, error, "nfs_advlock");
+ } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID)
+ && clidrev != 0) {
+ expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p);
+ retrycnt++;
+ }
+ } while (error == NFSERR_GRACE ||
+ error == NFSERR_STALECLIENTID || error == NFSERR_DELAY ||
+ error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID ||
+ error == NFSERR_BADSESSION ||
+ ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) &&
+ expireret == 0 && clidrev != 0 && retrycnt < 4));
+ if (error && retrycnt >= 4)
+ error = EIO;
+ return (error);
+}
+
+/*
+ * The lower level routine for the LockT case.
+ */
+APPLESTATIC int
+nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp,
+ struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl,
+ struct ucred *cred, NFSPROC_T *p, void *id, int flags)
+{
+ u_int32_t *tl;
+ int error, type, size;
+ uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX];
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+ struct nfsclsession *tsep;
+
+ nmp = VFSTONFS(vp->v_mount);
+ NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp);
+ NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
+ if (fl->l_type == F_RDLCK)
+ *tl++ = txdr_unsigned(NFSV4LOCKT_READ);
+ else
+ *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
+ txdr_hyper(off, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ tl += 2;
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ nfscl_filllockowner(id, own, flags);
+ np = VTONFS(vp);
+ NFSBCOPY(np->n_fhp->nfh_fh, &own[NFSV4CL_LOCKNAMELEN],
+ np->n_fhp->nfh_len);
+ (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + np->n_fhp->nfh_len);
+ error = nfscl_request(nd, vp, p, cred, NULL);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ fl->l_type = F_UNLCK;
+ } else if (nd->nd_repstat == NFSERR_DENIED) {
+ nd->nd_repstat = 0;
+ fl->l_whence = SEEK_SET;
+ NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED);
+ fl->l_start = fxdr_hyper(tl);
+ tl += 2;
+ len = fxdr_hyper(tl);
+ tl += 2;
+ if (len == NFS64BITSSET)
+ fl->l_len = 0;
+ else
+ fl->l_len = len;
+ type = fxdr_unsigned(int, *tl++);
+ if (type == NFSV4LOCKT_WRITE)
+ fl->l_type = F_WRLCK;
+ else
+ fl->l_type = F_RDLCK;
+ /*
+ * XXX For now, I have no idea what to do with the
+ * conflicting lock_owner, so I'll just set the pid == 0
+ * and skip over the lock_owner.
+ */
+ fl->l_pid = (pid_t)0;
+ tl += 2;
+ size = fxdr_unsigned(int, *tl);
+ if (size < 0 || size > NFSV4_OPAQUELIMIT)
+ error = EBADRPC;
+ if (!error)
+ error = nfsm_advance(nd, NFSM_RNDUP(size), -1);
+ } else if (nd->nd_repstat == NFSERR_STALECLIENTID)
+ nfscl_initiate_recovery(clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Lower level function that performs the LockU RPC.
+ */
+static int
+nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp,
+ struct nfscllockowner *lp, u_int64_t off, u_int64_t len,
+ u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred)
+{
+ u_int32_t *tl;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh,
+ lp->nfsl_open->nfso_fhlen, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(type);
+ *tl = txdr_unsigned(lp->nfsl_seqid);
+ if (nfstest_outofseq &&
+ (arc4random() % nfstest_outofseq) == 0)
+ *tl = txdr_unsigned(lp->nfsl_seqid + 1);
+ tl++;
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = lp->nfsl_stateid.seqid;
+ *tl++ = lp->nfsl_stateid.other[0];
+ *tl++ = lp->nfsl_stateid.other[1];
+ *tl++ = lp->nfsl_stateid.other[2];
+ txdr_hyper(off, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ NFSCL_INCRSEQID(lp->nfsl_seqid, nd);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
+ lp->nfsl_stateid.seqid = *tl++;
+ lp->nfsl_stateid.other[0] = *tl++;
+ lp->nfsl_stateid.other[1] = *tl++;
+ lp->nfsl_stateid.other[2] = *tl;
+ } else if (nd->nd_repstat == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * The actual Lock RPC.
+ */
+APPLESTATIC int
+nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp,
+ u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone,
+ int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred,
+ NFSPROC_T *p, int syscred)
+{
+ u_int32_t *tl;
+ int error, size;
+ uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX];
+ struct nfsclsession *tsep;
+
+ nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
+ if (type == F_RDLCK)
+ *tl++ = txdr_unsigned(NFSV4LOCKT_READ);
+ else
+ *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
+ *tl++ = txdr_unsigned(reclaim);
+ txdr_hyper(off, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ tl += 2;
+ if (newone) {
+ *tl = newnfs_true;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID +
+ 2 * NFSX_UNSIGNED + NFSX_HYPER);
+ *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = lp->nfsl_open->nfso_stateid.seqid;
+ *tl++ = lp->nfsl_open->nfso_stateid.other[0];
+ *tl++ = lp->nfsl_open->nfso_stateid.other[1];
+ *tl++ = lp->nfsl_open->nfso_stateid.other[2];
+ *tl++ = txdr_unsigned(lp->nfsl_seqid);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN);
+ NFSBCOPY(nfhp, &own[NFSV4CL_LOCKNAMELEN], fhlen);
+ (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen);
+ } else {
+ *tl = newnfs_false;
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = lp->nfsl_stateid.seqid;
+ *tl++ = lp->nfsl_stateid.other[0];
+ *tl++ = lp->nfsl_stateid.other[1];
+ *tl++ = lp->nfsl_stateid.other[2];
+ *tl = txdr_unsigned(lp->nfsl_seqid);
+ if (nfstest_outofseq &&
+ (arc4random() % nfstest_outofseq) == 0)
+ *tl = txdr_unsigned(lp->nfsl_seqid + 1);
+ }
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ if (newone)
+ NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd);
+ NFSCL_INCRSEQID(lp->nfsl_seqid, nd);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
+ lp->nfsl_stateid.seqid = *tl++;
+ lp->nfsl_stateid.other[0] = *tl++;
+ lp->nfsl_stateid.other[1] = *tl++;
+ lp->nfsl_stateid.other[2] = *tl;
+ } else if (nd->nd_repstat == NFSERR_DENIED) {
+ NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED);
+ size = fxdr_unsigned(int, *(tl + 7));
+ if (size < 0 || size > NFSV4_OPAQUELIMIT)
+ error = EBADRPC;
+ if (!error)
+ error = nfsm_advance(nd, NFSM_RNDUP(size), -1);
+ } else if (nd->nd_repstat == NFSERR_STALESTATEID)
+ nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp);
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs statfs rpc
+ * (always called with the vp for the mount point)
+ */
+APPLESTATIC int
+nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp,
+ void *stuff)
+{
+ u_int32_t *tl = NULL;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ nfsattrbit_t attrbits;
+ int error;
+
+ *attrflagp = 0;
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (NFSHASNFSV4(nmp)) {
+ /*
+ * For V4, you actually do a getattr.
+ */
+ NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp);
+ NFSSTATFS_GETATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0,
+ NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p,
+ cred);
+ if (!error) {
+ nmp->nm_fsid[0] = nap->na_filesid[0];
+ nmp->nm_fsid[1] = nap->na_filesid[1];
+ NFSSETHASSETFSID(nmp);
+ *attrflagp = 1;
+ }
+ } else {
+ error = nd->nd_repstat;
+ }
+ if (error)
+ goto nfsmout;
+ } else {
+ NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_flag & ND_NFSV3) {
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (error)
+ goto nfsmout;
+ }
+ if (nd->nd_repstat) {
+ error = nd->nd_repstat;
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, u_int32_t *,
+ NFSX_STATFS(nd->nd_flag & ND_NFSV3));
+ }
+ if (NFSHASNFSV3(nmp)) {
+ sbp->sf_tbytes = fxdr_hyper(tl); tl += 2;
+ sbp->sf_fbytes = fxdr_hyper(tl); tl += 2;
+ sbp->sf_abytes = fxdr_hyper(tl); tl += 2;
+ sbp->sf_tfiles = fxdr_hyper(tl); tl += 2;
+ sbp->sf_ffiles = fxdr_hyper(tl); tl += 2;
+ sbp->sf_afiles = fxdr_hyper(tl); tl += 2;
+ sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl);
+ } else if (NFSHASNFSV4(nmp) == 0) {
+ sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++);
+ sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++);
+ sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++);
+ sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++);
+ sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl);
+ }
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs pathconf rpc
+ */
+APPLESTATIC int
+nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp,
+ void *stuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp;
+ u_int32_t *tl;
+ nfsattrbit_t attrbits;
+ int error;
+
+ *attrflagp = 0;
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (NFSHASNFSV4(nmp)) {
+ /*
+ * For V4, you actually do a getattr.
+ */
+ NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp);
+ NFSPATHCONF_GETATTRBIT(&attrbits);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0,
+ pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p,
+ cred);
+ if (!error)
+ *attrflagp = 1;
+ } else {
+ error = nd->nd_repstat;
+ }
+ } else {
+ NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ if (!error) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF);
+ pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++);
+ pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++);
+ pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++);
+ pc->pc_chownrestricted =
+ fxdr_unsigned(u_int32_t, *tl++);
+ pc->pc_caseinsensitive =
+ fxdr_unsigned(u_int32_t, *tl++);
+ pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl);
+ }
+ }
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs version 3 fsinfo rpc call
+ */
+APPLESTATIC int
+nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred,
+ NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ *attrflagp = 0;
+ NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ error = nfscl_postop_attr(nd, nap, attrflagp, stuff);
+ if (nd->nd_repstat && !error)
+ error = nd->nd_repstat;
+ if (!error) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO);
+ fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++);
+ fsp->fs_maxfilesize = fxdr_hyper(tl);
+ tl += 2;
+ fxdr_nfsv3time(tl, &fsp->fs_timedelta);
+ tl += 2;
+ fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl);
+ }
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * This function performs the Renew RPC.
+ */
+APPLESTATIC int
+nfsrpc_renew(struct nfsclclient *clp, struct nfsclds *dsp, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ struct nfsmount *nmp;
+ int error;
+ struct nfssockreq *nrp;
+ struct nfsclsession *tsep;
+
+ nmp = clp->nfsc_nmp;
+ if (nmp == NULL)
+ return (0);
+ if (dsp == NULL)
+ nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ else
+ nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL,
+ &dsp->nfsclds_sess, 0, 0);
+ if (!NFSHASNFSV4N(nmp)) {
+ /* NFSv4.1 just uses a Sequence Op and not a Renew. */
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ }
+ nrp = NULL;
+ if (dsp != NULL)
+ nrp = dsp->nfsclds_sockp;
+ if (nrp == NULL)
+ /* If NULL, use the MDS socket. */
+ nrp = &nmp->nm_sockreq;
+ nd->nd_flag |= ND_USEGSSNAME;
+ if (dsp == NULL)
+ error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ else {
+ error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, &dsp->nfsclds_sess);
+ if (error == ENXIO)
+ nfscl_cancelreqs(dsp);
+ }
+ if (error)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * This function performs the Releaselockowner RPC.
+ */
+APPLESTATIC int
+nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp,
+ uint8_t *fh, int fhlen, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ u_int32_t *tl;
+ int error;
+ uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX];
+ struct nfsclsession *tsep;
+
+ if (NFSHASNFSV4N(nmp)) {
+ /* For NFSv4.1, do a FreeStateID. */
+ nfscl_reqstart(nd, NFSPROC_FREESTATEID, nmp, NULL, 0, NULL,
+ NULL, 0, 0);
+ nfsm_stateidtom(nd, &lp->nfsl_stateid, NFSSTATEID_PUTSTATEID);
+ } else {
+ nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL,
+ NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN);
+ NFSBCOPY(fh, &own[NFSV4CL_LOCKNAMELEN], fhlen);
+ (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen);
+ }
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * This function performs the Compound to get the mount pt FH.
+ */
+APPLESTATIC int
+nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ u_char *cp, *cp2;
+ int error, cnt, len, setnil;
+ u_int32_t *opcntp;
+
+ nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp, NULL, 0,
+ 0);
+ cp = dirpath;
+ cnt = 0;
+ do {
+ setnil = 0;
+ while (*cp == '/')
+ cp++;
+ cp2 = cp;
+ while (*cp2 != '\0' && *cp2 != '/')
+ cp2++;
+ if (*cp2 == '/') {
+ setnil = 1;
+ *cp2 = '\0';
+ }
+ if (cp2 != cp) {
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_LOOKUP);
+ nfsm_strtom(nd, cp, strlen(cp));
+ cnt++;
+ }
+ if (setnil)
+ *cp2++ = '/';
+ cp = cp2;
+ } while (*cp != '\0');
+ if (NFSHASNFSV4N(nmp))
+ /* Has a Sequence Op done by nfscl_reqstart(). */
+ *opcntp = txdr_unsigned(3 + cnt);
+ else
+ *opcntp = txdr_unsigned(2 + cnt);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETFH);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED);
+ tl += (2 + 2 * cnt);
+ if ((len = fxdr_unsigned(int, *tl)) <= 0 ||
+ len > NFSX_FHMAX) {
+ nd->nd_repstat = NFSERR_BADXDR;
+ } else {
+ nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len);
+ if (nd->nd_repstat == 0)
+ nmp->nm_fhsize = len;
+ }
+ }
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * This function performs the Delegreturn RPC.
+ */
+APPLESTATIC int
+nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred,
+ struct nfsmount *nmp, NFSPROC_T *p, int syscred)
+{
+ u_int32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh,
+ dp->nfsdl_fhlen, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
+ if (NFSHASNFSV4N(nmp))
+ *tl++ = 0;
+ else
+ *tl++ = dp->nfsdl_stateid.seqid;
+ *tl++ = dp->nfsdl_stateid.other[0];
+ *tl++ = dp->nfsdl_stateid.other[1];
+ *tl = dp->nfsdl_stateid.other[2];
+ if (syscred)
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs getacl call.
+ */
+APPLESTATIC int
+nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p,
+ struct acl *aclp, void *stuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+ nfsattrbit_t attrbits;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+
+ if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp))
+ return (EOPNOTSUPP);
+ NFSCL_REQSTART(nd, NFSPROC_GETACL, vp);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL);
+ (void) nfsrv_putattrbit(nd, &attrbits);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ if (!nd->nd_repstat)
+ error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL,
+ NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred);
+ else
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * nfs setacl call.
+ */
+APPLESTATIC int
+nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p,
+ struct acl *aclp, void *stuff)
+{
+ int error;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+
+ if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp))
+ return (EOPNOTSUPP);
+ error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff);
+ return (error);
+}
+
+/*
+ * nfs setacl call.
+ */
+static int
+nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p,
+ struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+ nfsattrbit_t attrbits;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+
+ if (!NFSHASNFSV4(nmp))
+ return (EOPNOTSUPP);
+ NFSCL_REQSTART(nd, NFSPROC_SETACL, vp);
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL);
+ (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0,
+ &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL);
+ error = nfscl_request(nd, vp, p, cred, stuff);
+ if (error)
+ return (error);
+ /* Don't care about the pre/postop attributes */
+ mbuf_freem(nd->nd_mrep);
+ return (nd->nd_repstat);
+}
+
+/*
+ * Do the NFSv4.1 Exchange ID.
+ */
+int
+nfsrpc_exchangeid(struct nfsmount *nmp, struct nfsclclient *clp,
+ struct nfssockreq *nrp, uint32_t exchflags, struct nfsclds **dspp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl, v41flags;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ struct nfsclds *dsp;
+ struct timespec verstime;
+ int error, len;
+
+ *dspp = NULL;
+ nfscl_reqstart(nd, NFSPROC_EXCHANGEID, nmp, NULL, 0, NULL, NULL, 0, 0);
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(nfsboottime.tv_sec); /* Client owner */
+ *tl = txdr_unsigned(clp->nfsc_rev);
+ (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen);
+
+ NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(exchflags);
+ *tl++ = txdr_unsigned(NFSV4EXCH_SP4NONE);
+
+ /* Set the implementation id4 */
+ *tl = txdr_unsigned(1);
+ (void) nfsm_strtom(nd, "freebsd.org", strlen("freebsd.org"));
+ (void) nfsm_strtom(nd, version, strlen(version));
+ NFSM_BUILD(tl, uint32_t *, NFSX_V4TIME);
+ verstime.tv_sec = 1293840000; /* Jan 1, 2011 */
+ verstime.tv_nsec = 0;
+ txdr_nfsv4time(&verstime, tl);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ NFSCL_DEBUG(1, "exchangeid err=%d reps=%d\n", error,
+ (int)nd->nd_repstat);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, 6 * NFSX_UNSIGNED + NFSX_HYPER);
+ len = fxdr_unsigned(int, *(tl + 7));
+ if (len < 0 || len > NFSV4_OPAQUELIMIT) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ dsp = malloc(sizeof(struct nfsclds) + len + 1, M_NFSCLDS,
+ M_WAITOK | M_ZERO);
+ dsp->nfsclds_expire = NFSD_MONOSEC + clp->nfsc_renew;
+ dsp->nfsclds_servownlen = len;
+ dsp->nfsclds_sess.nfsess_clientid.lval[0] = *tl++;
+ dsp->nfsclds_sess.nfsess_clientid.lval[1] = *tl++;
+ dsp->nfsclds_sess.nfsess_sequenceid =
+ fxdr_unsigned(uint32_t, *tl++);
+ v41flags = fxdr_unsigned(uint32_t, *tl);
+ if ((v41flags & NFSV4EXCH_USEPNFSMDS) != 0 &&
+ NFSHASPNFSOPT(nmp)) {
+ NFSCL_DEBUG(1, "set PNFS\n");
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_PNFS;
+ NFSUNLOCKMNT(nmp);
+ dsp->nfsclds_flags |= NFSCLDS_MDS;
+ }
+ if ((v41flags & NFSV4EXCH_USEPNFSDS) != 0)
+ dsp->nfsclds_flags |= NFSCLDS_DS;
+ if (len > 0)
+ nd->nd_repstat = nfsrv_mtostr(nd,
+ dsp->nfsclds_serverown, len);
+ if (nd->nd_repstat == 0) {
+ mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF);
+ mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession",
+ NULL, MTX_DEF);
+ nfscl_initsessionslots(&dsp->nfsclds_sess);
+ *dspp = dsp;
+ } else
+ free(dsp, M_NFSCLDS);
+ }
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 Create Session.
+ */
+int
+nfsrpc_createsession(struct nfsmount *nmp, struct nfsclsession *sep,
+ struct nfssockreq *nrp, uint32_t sequenceid, int mds, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ uint32_t crflags, maxval, *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ int error, irdcnt;
+
+ /* Make sure nm_rsize, nm_wsize is set. */
+ if (nmp->nm_rsize > NFS_MAXBSIZE || nmp->nm_rsize == 0)
+ nmp->nm_rsize = NFS_MAXBSIZE;
+ if (nmp->nm_wsize > NFS_MAXBSIZE || nmp->nm_wsize == 0)
+ nmp->nm_wsize = NFS_MAXBSIZE;
+ nfscl_reqstart(nd, NFSPROC_CREATESESSION, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED);
+ *tl++ = sep->nfsess_clientid.lval[0];
+ *tl++ = sep->nfsess_clientid.lval[1];
+ *tl++ = txdr_unsigned(sequenceid);
+ crflags = (NFSMNT_RDONLY(nmp->nm_mountp) ? 0 : NFSV4CRSESS_PERSIST);
+ if (nfscl_enablecallb != 0 && nfs_numnfscbd > 0 && mds != 0)
+ crflags |= NFSV4CRSESS_CONNBACKCHAN;
+ *tl = txdr_unsigned(crflags);
+
+ /* Fill in fore channel attributes. */
+ NFSM_BUILD(tl, uint32_t *, 7 * NFSX_UNSIGNED);
+ *tl++ = 0; /* Header pad size */
+ *tl++ = txdr_unsigned(nmp->nm_wsize + NFS_MAXXDR);/* Max request size */
+ *tl++ = txdr_unsigned(nmp->nm_rsize + NFS_MAXXDR);/* Max reply size */
+ *tl++ = txdr_unsigned(4096); /* Max response size cached */
+ *tl++ = txdr_unsigned(20); /* Max operations */
+ *tl++ = txdr_unsigned(64); /* Max slots */
+ *tl = 0; /* No rdma ird */
+
+ /* Fill in back channel attributes. */
+ NFSM_BUILD(tl, uint32_t *, 7 * NFSX_UNSIGNED);
+ *tl++ = 0; /* Header pad size */
+ *tl++ = txdr_unsigned(10000); /* Max request size */
+ *tl++ = txdr_unsigned(10000); /* Max response size */
+ *tl++ = txdr_unsigned(4096); /* Max response size cached */
+ *tl++ = txdr_unsigned(4); /* Max operations */
+ *tl++ = txdr_unsigned(NFSV4_CBSLOTS); /* Max slots */
+ *tl = 0; /* No rdma ird */
+
+ NFSM_BUILD(tl, uint32_t *, 8 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFS_CALLBCKPROG); /* Call back prog # */
+
+ /* Allow AUTH_SYS callbacks as uid, gid == 0. */
+ *tl++ = txdr_unsigned(1); /* Auth_sys only */
+ *tl++ = txdr_unsigned(AUTH_SYS); /* AUTH_SYS type */
+ *tl++ = txdr_unsigned(nfsboottime.tv_sec); /* time stamp */
+ *tl++ = 0; /* Null machine name */
+ *tl++ = 0; /* Uid == 0 */
+ *tl++ = 0; /* Gid == 0 */
+ *tl = 0; /* No additional gids */
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred, NFS_PROG,
+ NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID +
+ 2 * NFSX_UNSIGNED);
+ bcopy(tl, sep->nfsess_sessionid, NFSX_V4SESSIONID);
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ sep->nfsess_sequenceid = fxdr_unsigned(uint32_t, *tl++);
+ crflags = fxdr_unsigned(uint32_t, *tl);
+ if ((crflags & NFSV4CRSESS_PERSIST) != 0 && mds != 0) {
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_SESSPERSIST;
+ NFSUNLOCKMNT(nmp);
+ }
+
+ /* Get the fore channel slot count. */
+ NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED);
+ tl++; /* Skip the header pad size. */
+
+ /* Make sure nm_wsize is small enough. */
+ maxval = fxdr_unsigned(uint32_t, *tl++);
+ while (maxval < nmp->nm_wsize + NFS_MAXXDR) {
+ if (nmp->nm_wsize > 8096)
+ nmp->nm_wsize /= 2;
+ else
+ break;
+ }
+
+ /* Make sure nm_rsize is small enough. */
+ maxval = fxdr_unsigned(uint32_t, *tl++);
+ while (maxval < nmp->nm_rsize + NFS_MAXXDR) {
+ if (nmp->nm_rsize > 8096)
+ nmp->nm_rsize /= 2;
+ else
+ break;
+ }
+
+ sep->nfsess_maxcache = fxdr_unsigned(int, *tl++);
+ tl++;
+ sep->nfsess_foreslots = fxdr_unsigned(uint16_t, *tl++);
+ NFSCL_DEBUG(4, "fore slots=%d\n", (int)sep->nfsess_foreslots);
+ irdcnt = fxdr_unsigned(int, *tl);
+ if (irdcnt > 0)
+ NFSM_DISSECT(tl, uint32_t *, irdcnt * NFSX_UNSIGNED);
+
+ /* and the back channel slot count. */
+ NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED);
+ tl += 5;
+ sep->nfsess_backslots = fxdr_unsigned(uint16_t, *tl);
+ NFSCL_DEBUG(4, "back slots=%d\n", (int)sep->nfsess_backslots);
+ }
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 Destroy Session.
+ */
+int
+nfsrpc_destroysession(struct nfsmount *nmp, struct nfsclclient *clp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ int error;
+ struct nfsclsession *tsep;
+
+ nfscl_reqstart(nd, NFSPROC_DESTROYSESSION, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID);
+ tsep = nfsmnt_mdssession(nmp);
+ bcopy(tsep->nfsess_sessionid, tl, NFSX_V4SESSIONID);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 Destroy Client.
+ */
+int
+nfsrpc_destroyclient(struct nfsmount *nmp, struct nfsclclient *clp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ int error;
+ struct nfsclsession *tsep;
+
+ nfscl_reqstart(nd, NFSPROC_DESTROYCLIENT, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 LayoutGet.
+ */
+static int
+nfsrpc_layoutget(struct nfsmount *nmp, uint8_t *fhp, int fhlen, int iomode,
+ uint64_t offset, uint64_t len, uint64_t minlen, int layouttype,
+ int layoutlen, nfsv4stateid_t *stateidp, int *retonclosep,
+ struct nfsclflayouthead *flhp, struct ucred *cred, NFSPROC_T *p,
+ void *stuff)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_LAYOUTGET, nmp, fhp, fhlen, NULL, NULL, 0,
+ 0);
+ nfsrv_setuplayoutget(nd, iomode, offset, len, minlen, stateidp,
+ layouttype, layoutlen, 0);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ NFSCL_DEBUG(4, "layget err=%d st=%d\n", error, nd->nd_repstat);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0)
+ error = nfsrv_parselayoutget(nd, stateidp, retonclosep, flhp);
+ if (error == 0 && nd->nd_repstat != 0)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 Get Device Info.
+ */
+int
+nfsrpc_getdeviceinfo(struct nfsmount *nmp, uint8_t *deviceid, int layouttype,
+ uint32_t *notifybitsp, struct nfscldevinfo **ndip, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ uint32_t cnt, *tl, vers, minorvers;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ struct sockaddr_in sin, ssin;
+ struct sockaddr_in6 sin6, ssin6;
+ struct nfsclds *dsp = NULL, **dspp, **gotdspp;
+ struct nfscldevinfo *ndi;
+ int addrcnt = 0, bitcnt, error, gotvers, i, isudp, j, stripecnt;
+ uint8_t stripeindex;
+ sa_family_t af, safilled;
+
+ *ndip = NULL;
+ ndi = NULL;
+ gotdspp = NULL;
+ nfscl_reqstart(nd, NFSPROC_GETDEVICEINFO, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ NFSM_BUILD(tl, uint32_t *, NFSX_V4DEVICEID + 3 * NFSX_UNSIGNED);
+ NFSBCOPY(deviceid, tl, NFSX_V4DEVICEID);
+ tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(layouttype);
+ *tl++ = txdr_unsigned(100000);
+ if (notifybitsp != NULL && *notifybitsp != 0) {
+ *tl = txdr_unsigned(1); /* One word of bits. */
+ NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(*notifybitsp);
+ } else
+ *tl = txdr_unsigned(0);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ if (layouttype != fxdr_unsigned(int, *tl))
+ printf("EEK! devinfo layout type not same!\n");
+ if (layouttype == NFSLAYOUT_NFSV4_1_FILES) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ stripecnt = fxdr_unsigned(int, *tl);
+ NFSCL_DEBUG(4, "stripecnt=%d\n", stripecnt);
+ if (stripecnt < 1 || stripecnt > 4096) {
+ printf("pNFS File layout devinfo stripecnt %d:"
+ " out of range\n", stripecnt);
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, uint32_t *, (stripecnt + 1) *
+ NFSX_UNSIGNED);
+ addrcnt = fxdr_unsigned(int, *(tl + stripecnt));
+ NFSCL_DEBUG(4, "addrcnt=%d\n", addrcnt);
+ if (addrcnt < 1 || addrcnt > 128) {
+ printf("NFS devinfo addrcnt %d: out of range\n",
+ addrcnt);
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+
+ /*
+ * Now we know how many stripe indices and addresses, so
+ * we can allocate the structure the correct size.
+ */
+ i = (stripecnt * sizeof(uint8_t)) /
+ sizeof(struct nfsclds *) + 1;
+ NFSCL_DEBUG(4, "stripeindices=%d\n", i);
+ ndi = malloc(sizeof(*ndi) + (addrcnt + i) *
+ sizeof(struct nfsclds *), M_NFSDEVINFO, M_WAITOK |
+ M_ZERO);
+ NFSBCOPY(deviceid, ndi->nfsdi_deviceid,
+ NFSX_V4DEVICEID);
+ ndi->nfsdi_refcnt = 0;
+ ndi->nfsdi_flags = NFSDI_FILELAYOUT;
+ ndi->nfsdi_stripecnt = stripecnt;
+ ndi->nfsdi_addrcnt = addrcnt;
+ /* Fill in the stripe indices. */
+ for (i = 0; i < stripecnt; i++) {
+ stripeindex = fxdr_unsigned(uint8_t, *tl++);
+ NFSCL_DEBUG(4, "stripeind=%d\n", stripeindex);
+ if (stripeindex >= addrcnt) {
+ printf("pNFS File Layout devinfo"
+ " stripeindex %d: too big\n",
+ (int)stripeindex);
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ nfsfldi_setstripeindex(ndi, i, stripeindex);
+ }
+ } else if (layouttype == NFSLAYOUT_FLEXFILE) {
+ /* For Flex File, we only get one address list. */
+ ndi = malloc(sizeof(*ndi) + sizeof(struct nfsclds *),
+ M_NFSDEVINFO, M_WAITOK | M_ZERO);
+ NFSBCOPY(deviceid, ndi->nfsdi_deviceid,
+ NFSX_V4DEVICEID);
+ ndi->nfsdi_refcnt = 0;
+ ndi->nfsdi_flags = NFSDI_FLEXFILE;
+ addrcnt = ndi->nfsdi_addrcnt = 1;
+ }
+
+ /* Now, dissect the server address(es). */
+ safilled = AF_UNSPEC;
+ for (i = 0; i < addrcnt; i++) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ cnt = fxdr_unsigned(uint32_t, *tl);
+ if (cnt == 0) {
+ printf("NFS devinfo 0 len addrlist\n");
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ dspp = nfsfldi_addr(ndi, i);
+ safilled = AF_UNSPEC;
+ for (j = 0; j < cnt; j++) {
+ error = nfsv4_getipaddr(nd, &sin, &sin6, &af,
+ &isudp);
+ if (error != 0 && error != EPERM) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (error == 0 && isudp == 0) {
+ /*
+ * The priority is:
+ * - Same address family.
+ * Save the address and dspp, so that
+ * the connection can be done after
+ * parsing is complete.
+ */
+ if (safilled == AF_UNSPEC ||
+ (af == nmp->nm_nam->sa_family &&
+ safilled != nmp->nm_nam->sa_family)
+ ) {
+ if (af == AF_INET)
+ ssin = sin;
+ else
+ ssin6 = sin6;
+ safilled = af;
+ gotdspp = dspp;
+ }
+ }
+ }
+ }
+
+ gotvers = NFS_VER4; /* Always NFSv4 for File Layout. */
+ /* For Flex File, we will take one of the versions to use. */
+ if (layouttype == NFSLAYOUT_FLEXFILE) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ j = fxdr_unsigned(int, *tl);
+ if (j < 1 || j > NFSDEV_MAXVERS) {
+ printf("pNFS: too many versions\n");
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ gotvers = 0;
+ for (i = 0; i < j; i++) {
+ NFSM_DISSECT(tl, uint32_t *, 5 * NFSX_UNSIGNED);
+ vers = fxdr_unsigned(uint32_t, *tl++);
+ minorvers = fxdr_unsigned(uint32_t, *tl++);
+ if ((vers == NFS_VER4 && minorvers ==
+ NFSV41_MINORVERSION) || (vers == NFS_VER3 &&
+ gotvers == 0)) {
+ gotvers = vers;
+ /* We'll take this one. */
+ ndi->nfsdi_versindex = i;
+ ndi->nfsdi_vers = vers;
+ ndi->nfsdi_minorvers = minorvers;
+ ndi->nfsdi_rsize = fxdr_unsigned(
+ uint32_t, *tl++);
+ ndi->nfsdi_wsize = fxdr_unsigned(
+ uint32_t, *tl++);
+ if (*tl == newnfs_true)
+ ndi->nfsdi_flags |=
+ NFSDI_TIGHTCOUPLED;
+ else
+ ndi->nfsdi_flags &=
+ ~NFSDI_TIGHTCOUPLED;
+ }
+ }
+ if (gotvers == 0) {
+ printf("pNFS: no NFSv3 or NFSv4.1\n");
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ }
+
+ /* And the notify bits. */
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ bitcnt = fxdr_unsigned(int, *tl);
+ if (bitcnt > 0) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ if (notifybitsp != NULL)
+ *notifybitsp =
+ fxdr_unsigned(uint32_t, *tl);
+ }
+ if (safilled != AF_UNSPEC) {
+ KASSERT(ndi != NULL, ("ndi is NULL"));
+ *ndip = ndi;
+ } else
+ error = EPERM;
+ if (error == 0) {
+ /*
+ * Now we can do a TCP connection for the correct
+ * NFS version and IP address.
+ */
+ error = nfsrpc_fillsa(nmp, &ssin, &ssin6, safilled,
+ gotvers, &dsp, p);
+ }
+ if (error == 0) {
+ KASSERT(gotdspp != NULL, ("gotdspp is NULL"));
+ *gotdspp = dsp;
+ }
+ }
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+nfsmout:
+ if (error != 0 && ndi != NULL)
+ nfscl_freedevinfo(ndi);
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 LayoutCommit.
+ */
+int
+nfsrpc_layoutcommit(struct nfsmount *nmp, uint8_t *fh, int fhlen, int reclaim,
+ uint64_t off, uint64_t len, uint64_t lastbyte, nfsv4stateid_t *stateidp,
+ int layouttype, struct ucred *cred, NFSPROC_T *p, void *stuff)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_LAYOUTCOMMIT, nmp, fh, fhlen, NULL, NULL,
+ 0, 0);
+ NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED + 3 * NFSX_HYPER +
+ NFSX_STATEID);
+ txdr_hyper(off, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ tl += 2;
+ if (reclaim != 0)
+ *tl++ = newnfs_true;
+ else
+ *tl++ = newnfs_false;
+ *tl++ = txdr_unsigned(stateidp->seqid);
+ *tl++ = stateidp->other[0];
+ *tl++ = stateidp->other[1];
+ *tl++ = stateidp->other[2];
+ *tl++ = newnfs_true;
+ if (lastbyte < off)
+ lastbyte = off;
+ else if (lastbyte >= (off + len))
+ lastbyte = off + len - 1;
+ txdr_hyper(lastbyte, tl);
+ tl += 2;
+ *tl++ = newnfs_false;
+ *tl++ = txdr_unsigned(layouttype);
+ /* All supported layouts are 0 length. */
+ *tl = txdr_unsigned(0);
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 LayoutReturn.
+ */
+int
+nfsrpc_layoutreturn(struct nfsmount *nmp, uint8_t *fh, int fhlen, int reclaim,
+ int layouttype, uint32_t iomode, int layoutreturn, uint64_t offset,
+ uint64_t len, nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p,
+ uint32_t stat, uint32_t op, char *devid)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ uint64_t tu64;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_LAYOUTRETURN, nmp, fh, fhlen, NULL, NULL,
+ 0, 0);
+ NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED);
+ if (reclaim != 0)
+ *tl++ = newnfs_true;
+ else
+ *tl++ = newnfs_false;
+ *tl++ = txdr_unsigned(layouttype);
+ *tl++ = txdr_unsigned(iomode);
+ *tl = txdr_unsigned(layoutreturn);
+ if (layoutreturn == NFSLAYOUTRETURN_FILE) {
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_STATEID +
+ NFSX_UNSIGNED);
+ txdr_hyper(offset, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ tl += 2;
+ NFSCL_DEBUG(4, "layoutret stseq=%d\n", (int)stateidp->seqid);
+ *tl++ = txdr_unsigned(stateidp->seqid);
+ *tl++ = stateidp->other[0];
+ *tl++ = stateidp->other[1];
+ *tl++ = stateidp->other[2];
+ if (layouttype == NFSLAYOUT_NFSV4_1_FILES)
+ *tl = txdr_unsigned(0);
+ else if (layouttype == NFSLAYOUT_FLEXFILE) {
+ if (stat != 0) {
+ *tl = txdr_unsigned(2 * NFSX_HYPER +
+ NFSX_STATEID + NFSX_V4DEVICEID + 5 *
+ NFSX_UNSIGNED);
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER +
+ NFSX_STATEID + NFSX_V4DEVICEID + 5 *
+ NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(1); /* One error. */
+ tu64 = 0; /* Offset. */
+ txdr_hyper(tu64, tl); tl += 2;
+ tu64 = UINT64_MAX; /* Length. */
+ txdr_hyper(tu64, tl); tl += 2;
+ NFSBCOPY(stateidp, tl, NFSX_STATEID);
+ tl += (NFSX_STATEID / NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(1); /* One error. */
+ NFSBCOPY(devid, tl, NFSX_V4DEVICEID);
+ tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(stat);
+ *tl++ = txdr_unsigned(op);
+ } else {
+ *tl = txdr_unsigned(2 * NFSX_UNSIGNED);
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ /* No ioerrs. */
+ *tl++ = 0;
+ }
+ *tl = 0; /* No stats yet. */
+ }
+ }
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ if (*tl != 0) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID);
+ stateidp->seqid = fxdr_unsigned(uint32_t, *tl++);
+ stateidp->other[0] = *tl++;
+ stateidp->other[1] = *tl++;
+ stateidp->other[2] = *tl;
+ }
+ } else
+ error = nd->nd_repstat;
+nfsmout:
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Acquire a layout and devinfo, if possible. The caller must have acquired
+ * a reference count on the nfsclclient structure before calling this.
+ * Return the layout in lypp with a reference count on it, if successful.
+ */
+static int
+nfsrpc_getlayout(struct nfsmount *nmp, vnode_t vp, struct nfsfh *nfhp,
+ int iomode, uint32_t *notifybitsp, nfsv4stateid_t *stateidp, uint64_t off,
+ struct nfscllayout **lypp, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfscllayout *lyp;
+ struct nfsclflayout *flp;
+ struct nfsclflayouthead flh;
+ int error = 0, islocked, layoutlen, layouttype, recalled, retonclose;
+ nfsv4stateid_t stateid;
+ struct nfsclsession *tsep;
+
+ *lypp = NULL;
+ if (NFSHASFLEXFILE(nmp))
+ layouttype = NFSLAYOUT_FLEXFILE;
+ else
+ layouttype = NFSLAYOUT_NFSV4_1_FILES;
+ /*
+ * If lyp is returned non-NULL, there will be a refcnt (shared lock)
+ * on it, iff flp != NULL or a lock (exclusive lock) on it iff
+ * flp == NULL.
+ */
+ lyp = nfscl_getlayout(nmp->nm_clp, nfhp->nfh_fh, nfhp->nfh_len,
+ off, &flp, &recalled);
+ islocked = 0;
+ if (lyp == NULL || flp == NULL) {
+ if (recalled != 0)
+ return (EIO);
+ LIST_INIT(&flh);
+ tsep = nfsmnt_mdssession(nmp);
+ layoutlen = tsep->nfsess_maxcache -
+ (NFSX_STATEID + 3 * NFSX_UNSIGNED);
+ if (lyp == NULL) {
+ stateid.seqid = 0;
+ stateid.other[0] = stateidp->other[0];
+ stateid.other[1] = stateidp->other[1];
+ stateid.other[2] = stateidp->other[2];
+ error = nfsrpc_layoutget(nmp, nfhp->nfh_fh,
+ nfhp->nfh_len, iomode, (uint64_t)0, UINT64_MAX,
+ (uint64_t)0, layouttype, layoutlen, &stateid,
+ &retonclose, &flh, cred, p, NULL);
+ } else {
+ islocked = 1;
+ stateid.seqid = lyp->nfsly_stateid.seqid;
+ stateid.other[0] = lyp->nfsly_stateid.other[0];
+ stateid.other[1] = lyp->nfsly_stateid.other[1];
+ stateid.other[2] = lyp->nfsly_stateid.other[2];
+ error = nfsrpc_layoutget(nmp, nfhp->nfh_fh,
+ nfhp->nfh_len, iomode, off, UINT64_MAX,
+ (uint64_t)0, layouttype, layoutlen, &stateid,
+ &retonclose, &flh, cred, p, NULL);
+ }
+ error = nfsrpc_layoutgetres(nmp, vp, nfhp->nfh_fh,
+ nfhp->nfh_len, &stateid, retonclose, notifybitsp, &lyp,
+ &flh, layouttype, error, NULL, cred, p);
+ if (error == 0)
+ *lypp = lyp;
+ else if (islocked != 0)
+ nfscl_rellayout(lyp, 1);
+ } else
+ *lypp = lyp;
+ return (error);
+}
+
+/*
+ * Do a TCP connection plus exchange id and create session.
+ * If successful, a "struct nfsclds" is linked into the list for the
+ * mount point and a pointer to it is returned.
+ */
+static int
+nfsrpc_fillsa(struct nfsmount *nmp, struct sockaddr_in *sin,
+ struct sockaddr_in6 *sin6, sa_family_t af, int vers, struct nfsclds **dspp,
+ NFSPROC_T *p)
+{
+ struct sockaddr_in *msad, *sad;
+ struct sockaddr_in6 *msad6, *sad6;
+ struct nfsclclient *clp;
+ struct nfssockreq *nrp;
+ struct nfsclds *dsp, *tdsp;
+ int error;
+ enum nfsclds_state retv;
+ uint32_t sequenceid;
+
+ KASSERT(nmp->nm_sockreq.nr_cred != NULL,
+ ("nfsrpc_fillsa: NULL nr_cred"));
+ NFSLOCKCLSTATE();
+ clp = nmp->nm_clp;
+ NFSUNLOCKCLSTATE();
+ if (clp == NULL)
+ return (EPERM);
+ if (af == AF_INET) {
+ NFSLOCKMNT(nmp);
+ /*
+ * Check to see if we already have a session for this
+ * address that is usable for a DS.
+ * Note that the MDS's address is in a different place
+ * than the sessions already acquired for DS's.
+ */
+ msad = (struct sockaddr_in *)nmp->nm_sockreq.nr_nam;
+ tdsp = TAILQ_FIRST(&nmp->nm_sess);
+ while (tdsp != NULL) {
+ if (msad != NULL && msad->sin_family == AF_INET &&
+ sin->sin_addr.s_addr == msad->sin_addr.s_addr &&
+ sin->sin_port == msad->sin_port &&
+ (tdsp->nfsclds_flags & NFSCLDS_DS) != 0 &&
+ tdsp->nfsclds_sess.nfsess_defunct == 0) {
+ *dspp = tdsp;
+ NFSUNLOCKMNT(nmp);
+ NFSCL_DEBUG(4, "fnd same addr\n");
+ return (0);
+ }
+ tdsp = TAILQ_NEXT(tdsp, nfsclds_list);
+ if (tdsp != NULL && tdsp->nfsclds_sockp != NULL)
+ msad = (struct sockaddr_in *)
+ tdsp->nfsclds_sockp->nr_nam;
+ else
+ msad = NULL;
+ }
+ NFSUNLOCKMNT(nmp);
+
+ /* No IP address match, so look for new/trunked one. */
+ sad = malloc(sizeof(*sad), M_SONAME, M_WAITOK | M_ZERO);
+ sad->sin_len = sizeof(*sad);
+ sad->sin_family = AF_INET;
+ sad->sin_port = sin->sin_port;
+ sad->sin_addr.s_addr = sin->sin_addr.s_addr;
+ nrp = malloc(sizeof(*nrp), M_NFSSOCKREQ, M_WAITOK | M_ZERO);
+ nrp->nr_nam = (struct sockaddr *)sad;
+ } else if (af == AF_INET6) {
+ NFSLOCKMNT(nmp);
+ /*
+ * Check to see if we already have a session for this
+ * address that is usable for a DS.
+ * Note that the MDS's address is in a different place
+ * than the sessions already acquired for DS's.
+ */
+ msad6 = (struct sockaddr_in6 *)nmp->nm_sockreq.nr_nam;
+ tdsp = TAILQ_FIRST(&nmp->nm_sess);
+ while (tdsp != NULL) {
+ if (msad6 != NULL && msad6->sin6_family == AF_INET6 &&
+ IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr,
+ &msad6->sin6_addr) &&
+ sin6->sin6_port == msad6->sin6_port &&
+ (tdsp->nfsclds_flags & NFSCLDS_DS) != 0 &&
+ tdsp->nfsclds_sess.nfsess_defunct == 0) {
+ *dspp = tdsp;
+ NFSUNLOCKMNT(nmp);
+ return (0);
+ }
+ tdsp = TAILQ_NEXT(tdsp, nfsclds_list);
+ if (tdsp != NULL && tdsp->nfsclds_sockp != NULL)
+ msad6 = (struct sockaddr_in6 *)
+ tdsp->nfsclds_sockp->nr_nam;
+ else
+ msad6 = NULL;
+ }
+ NFSUNLOCKMNT(nmp);
+
+ /* No IP address match, so look for new/trunked one. */
+ sad6 = malloc(sizeof(*sad6), M_SONAME, M_WAITOK | M_ZERO);
+ sad6->sin6_len = sizeof(*sad6);
+ sad6->sin6_family = AF_INET6;
+ sad6->sin6_port = sin6->sin6_port;
+ NFSBCOPY(&sin6->sin6_addr, &sad6->sin6_addr,
+ sizeof(struct in6_addr));
+ nrp = malloc(sizeof(*nrp), M_NFSSOCKREQ, M_WAITOK | M_ZERO);
+ nrp->nr_nam = (struct sockaddr *)sad6;
+ } else
+ return (EPERM);
+
+ nrp->nr_sotype = SOCK_STREAM;
+ mtx_init(&nrp->nr_mtx, "nfssock", NULL, MTX_DEF);
+ nrp->nr_prog = NFS_PROG;
+ nrp->nr_vers = vers;
+
+ /*
+ * Use the credentials that were used for the mount, which are
+ * in nmp->nm_sockreq.nr_cred for newnfs_connect() etc.
+ * Ref. counting the credentials with crhold() is probably not
+ * necessary, since nm_sockreq.nr_cred won't be crfree()'d until
+ * unmount, but I did it anyhow.
+ */
+ nrp->nr_cred = crhold(nmp->nm_sockreq.nr_cred);
+ error = newnfs_connect(nmp, nrp, NULL, p, 0);
+ NFSCL_DEBUG(3, "DS connect=%d\n", error);
+
+ dsp = NULL;
+ /* Now, do the exchangeid and create session. */
+ if (error == 0) {
+ if (vers == NFS_VER4) {
+ error = nfsrpc_exchangeid(nmp, clp, nrp,
+ NFSV4EXCH_USEPNFSDS, &dsp, nrp->nr_cred, p);
+ NFSCL_DEBUG(3, "DS exchangeid=%d\n", error);
+ if (error != 0)
+ newnfs_disconnect(nrp);
+ } else {
+ dsp = malloc(sizeof(struct nfsclds), M_NFSCLDS,
+ M_WAITOK | M_ZERO);
+ dsp->nfsclds_flags |= NFSCLDS_DS;
+ dsp->nfsclds_expire = INT32_MAX; /* No renews needed. */
+ mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF);
+ mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession",
+ NULL, MTX_DEF);
+ }
+ }
+ if (error == 0) {
+ dsp->nfsclds_sockp = nrp;
+ if (vers == NFS_VER4) {
+ NFSLOCKMNT(nmp);
+ retv = nfscl_getsameserver(nmp, dsp, &tdsp,
+ &sequenceid);
+ NFSCL_DEBUG(3, "getsame ret=%d\n", retv);
+ if (retv == NFSDSP_USETHISSESSION &&
+ nfscl_dssameconn != 0) {
+ NFSLOCKDS(tdsp);
+ tdsp->nfsclds_flags |= NFSCLDS_SAMECONN;
+ NFSUNLOCKDS(tdsp);
+ NFSUNLOCKMNT(nmp);
+ /*
+ * If there is already a session for this
+ * server, use it.
+ */
+ (void)newnfs_disconnect(nrp);
+ nfscl_freenfsclds(dsp);
+ *dspp = tdsp;
+ return (0);
+ }
+ if (retv == NFSDSP_NOTFOUND)
+ sequenceid =
+ dsp->nfsclds_sess.nfsess_sequenceid;
+ NFSUNLOCKMNT(nmp);
+ error = nfsrpc_createsession(nmp, &dsp->nfsclds_sess,
+ nrp, sequenceid, 0, nrp->nr_cred, p);
+ NFSCL_DEBUG(3, "DS createsess=%d\n", error);
+ }
+ } else {
+ NFSFREECRED(nrp->nr_cred);
+ NFSFREEMUTEX(&nrp->nr_mtx);
+ free(nrp->nr_nam, M_SONAME);
+ free(nrp, M_NFSSOCKREQ);
+ }
+ if (error == 0) {
+ NFSCL_DEBUG(3, "add DS session\n");
+ /*
+ * Put it at the end of the list. That way the list
+ * is ordered by when the entry was added. This matters
+ * since the one done first is the one that should be
+ * used for sequencid'ing any subsequent create sessions.
+ */
+ NFSLOCKMNT(nmp);
+ TAILQ_INSERT_TAIL(&nmp->nm_sess, dsp, nfsclds_list);
+ NFSUNLOCKMNT(nmp);
+ *dspp = dsp;
+ } else if (dsp != NULL) {
+ newnfs_disconnect(nrp);
+ nfscl_freenfsclds(dsp);
+ }
+ return (error);
+}
+
+/*
+ * Do the NFSv4.1 Reclaim Complete.
+ */
+int
+nfsrpc_reclaimcomplete(struct nfsmount *nmp, struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ int error;
+
+ nfscl_reqstart(nd, NFSPROC_RECLAIMCOMPL, nmp, NULL, 0, NULL, NULL, 0,
+ 0);
+ NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
+ *tl = newnfs_false;
+ nd->nd_flag |= ND_USEGSSNAME;
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Initialize the slot tables for a session.
+ */
+static void
+nfscl_initsessionslots(struct nfsclsession *sep)
+{
+ int i;
+
+ for (i = 0; i < NFSV4_CBSLOTS; i++) {
+ if (sep->nfsess_cbslots[i].nfssl_reply != NULL)
+ m_freem(sep->nfsess_cbslots[i].nfssl_reply);
+ NFSBZERO(&sep->nfsess_cbslots[i], sizeof(struct nfsslot));
+ }
+ for (i = 0; i < 64; i++)
+ sep->nfsess_slotseq[i] = 0;
+ sep->nfsess_slots = 0;
+}
+
+/*
+ * Called to try and do an I/O operation via an NFSv4.1 Data Server (DS).
+ */
+int
+nfscl_doiods(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
+ uint32_t rwaccess, int docommit, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfscllayout *layp;
+ struct nfscldevinfo *dip;
+ struct nfsclflayout *rflp;
+ struct mbuf *m;
+ struct nfsclwritedsdorpc *drpc, *tdrpc;
+ nfsv4stateid_t stateid;
+ struct ucred *newcred;
+ uint64_t lastbyte, len, off, oresid, xfer;
+ int eof, error, firstmirror, i, iolaymode, mirrorcnt, recalled, timo;
+ void *lckp;
+ uint8_t *dev;
+ void *iovbase = NULL;
+ size_t iovlen = 0;
+ off_t offs = 0;
+ ssize_t resid = 0;
+
+ if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 || nfs_numnfscbd == 0 ||
+ (np->n_flag & NNOLAYOUT) != 0)
+ return (EIO);
+ /* Now, get a reference cnt on the clientid for this mount. */
+ if (nfscl_getref(nmp) == 0)
+ return (EIO);
+
+ /* Find an appropriate stateid. */
+ newcred = NFSNEWCRED(cred);
+ error = nfscl_getstateid(vp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len,
+ rwaccess, 1, newcred, p, &stateid, &lckp);
+ if (error != 0) {
+ NFSFREECRED(newcred);
+ nfscl_relref(nmp);
+ return (error);
+ }
+ /* Search for a layout for this file. */
+ off = uiop->uio_offset;
+ layp = nfscl_getlayout(nmp->nm_clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, off, &rflp, &recalled);
+ if (layp == NULL || rflp == NULL) {
+ if (recalled != 0) {
+ NFSFREECRED(newcred);
+ nfscl_relref(nmp);
+ return (EIO);
+ }
+ if (layp != NULL) {
+ nfscl_rellayout(layp, (rflp == NULL) ? 1 : 0);
+ layp = NULL;
+ }
+ /* Try and get a Layout, if it is supported. */
+ if (rwaccess == NFSV4OPEN_ACCESSWRITE ||
+ (np->n_flag & NWRITEOPENED) != 0)
+ iolaymode = NFSLAYOUTIOMODE_RW;
+ else
+ iolaymode = NFSLAYOUTIOMODE_READ;
+ error = nfsrpc_getlayout(nmp, vp, np->n_fhp, iolaymode,
+ NULL, &stateid, off, &layp, newcred, p);
+ if (error != 0) {
+ NFSLOCKNODE(np);
+ np->n_flag |= NNOLAYOUT;
+ NFSUNLOCKNODE(np);
+ if (lckp != NULL)
+ nfscl_lockderef(lckp);
+ NFSFREECRED(newcred);
+ if (layp != NULL)
+ nfscl_rellayout(layp, 0);
+ nfscl_relref(nmp);
+ return (error);
+ }
+ }
+
+ /*
+ * Loop around finding a layout that works for the first part of
+ * this I/O operation, and then call the function that actually
+ * does the RPC.
+ */
+ eof = 0;
+ len = (uint64_t)uiop->uio_resid;
+ while (len > 0 && error == 0 && eof == 0) {
+ off = uiop->uio_offset;
+ error = nfscl_findlayoutforio(layp, off, rwaccess, &rflp);
+ if (error == 0) {
+ oresid = xfer = (uint64_t)uiop->uio_resid;
+ if (xfer > (rflp->nfsfl_end - rflp->nfsfl_off))
+ xfer = rflp->nfsfl_end - rflp->nfsfl_off;
+ /*
+ * For Flex File layout with mirrored DSs, select one
+ * of them at random for reads. For writes and commits,
+ * do all mirrors.
+ */
+ m = NULL;
+ tdrpc = drpc = NULL;
+ firstmirror = 0;
+ mirrorcnt = 1;
+ if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0 &&
+ (mirrorcnt = rflp->nfsfl_mirrorcnt) > 1) {
+ if (rwaccess == NFSV4OPEN_ACCESSREAD) {
+ firstmirror = arc4random() % mirrorcnt;
+ mirrorcnt = firstmirror + 1;
+ } else {
+ if (docommit == 0) {
+ /*
+ * Save values, so uiop can be
+ * rolled back upon a write
+ * error.
+ */
+ offs = uiop->uio_offset;
+ resid = uiop->uio_resid;
+ iovbase =
+ uiop->uio_iov->iov_base;
+ iovlen = uiop->uio_iov->iov_len;
+ m = nfsm_uiombuflist(uiop, len,
+ NULL, NULL);
+ }
+ tdrpc = drpc = malloc(sizeof(*drpc) *
+ (mirrorcnt - 1), M_TEMP, M_WAITOK |
+ M_ZERO);
+ }
+ }
+ for (i = firstmirror; i < mirrorcnt && error == 0; i++){
+ if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0) {
+ dev = rflp->nfsfl_ffm[i].dev;
+ dip = nfscl_getdevinfo(nmp->nm_clp, dev,
+ rflp->nfsfl_ffm[i].devp);
+ } else {
+ dev = rflp->nfsfl_dev;
+ dip = nfscl_getdevinfo(nmp->nm_clp, dev,
+ rflp->nfsfl_devp);
+ }
+ if (dip != NULL) {
+ if ((rflp->nfsfl_flags & NFSFL_FLEXFILE)
+ != 0)
+ error = nfscl_dofflayoutio(vp,
+ uiop, iomode, must_commit,
+ &eof, &stateid, rwaccess,
+ dip, layp, rflp, off, xfer,
+ i, docommit, m, tdrpc,
+ newcred, p);
+ else
+ error = nfscl_doflayoutio(vp,
+ uiop, iomode, must_commit,
+ &eof, &stateid, rwaccess,
+ dip, layp, rflp, off, xfer,
+ docommit, newcred, p);
+ nfscl_reldevinfo(dip);
+ } else
+ error = EIO;
+ tdrpc++;
+ }
+ if (m != NULL)
+ m_freem(m);
+ tdrpc = drpc;
+ timo = hz / 50; /* Wait for 20msec. */
+ if (timo < 1)
+ timo = 1;
+ for (i = firstmirror; i < mirrorcnt - 1 &&
+ tdrpc != NULL; i++, tdrpc++) {
+ /*
+ * For the unused drpc entries, both inprog and
+ * err == 0, so this loop won't break.
+ */
+ while (tdrpc->inprog != 0 && tdrpc->done == 0)
+ tsleep(&tdrpc->tsk, PVFS, "clrpcio",
+ timo);
+ if (error == 0 && tdrpc->err != 0)
+ error = tdrpc->err;
+ }
+ free(drpc, M_TEMP);
+ if (error == 0) {
+ if (mirrorcnt > 1 && rwaccess ==
+ NFSV4OPEN_ACCESSWRITE && docommit == 0) {
+ NFSLOCKCLSTATE();
+ layp->nfsly_flags |= NFSLY_WRITTEN;
+ NFSUNLOCKCLSTATE();
+ }
+ lastbyte = off + xfer - 1;
+ NFSLOCKCLSTATE();
+ if (lastbyte > layp->nfsly_lastbyte)
+ layp->nfsly_lastbyte = lastbyte;
+ NFSUNLOCKCLSTATE();
+ } else if (error == NFSERR_OPENMODE &&
+ rwaccess == NFSV4OPEN_ACCESSREAD) {
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_OPENMODE;
+ NFSUNLOCKMNT(nmp);
+ } else
+ error = EIO;
+ if (error == 0)
+ len -= (oresid - (uint64_t)uiop->uio_resid);
+ else if (mirrorcnt > 1 && rwaccess ==
+ NFSV4OPEN_ACCESSWRITE && docommit == 0) {
+ /*
+ * In case the rpc gets retried, roll the
+ * uio fields changed by nfsm_uiombuflist()
+ * back.
+ */
+ uiop->uio_offset = offs;
+ uiop->uio_resid = resid;
+ uiop->uio_iov->iov_base = iovbase;
+ uiop->uio_iov->iov_len = iovlen;
+ }
+ }
+ }
+ if (lckp != NULL)
+ nfscl_lockderef(lckp);
+ NFSFREECRED(newcred);
+ nfscl_rellayout(layp, 0);
+ nfscl_relref(nmp);
+ return (error);
+}
+
+/*
+ * Make a copy of the mbuf chain and add an mbuf for null padding, as required.
+ */
+static struct mbuf *
+nfsm_copym(struct mbuf *m, int off, int xfer)
+{
+ struct mbuf *m2, *m3, *m4;
+ uint32_t *tl;
+ int rem;
+
+ m2 = m_copym(m, off, xfer, M_WAITOK);
+ rem = NFSM_RNDUP(xfer) - xfer;
+ if (rem > 0) {
+ /*
+ * The zero padding to a multiple of 4 bytes is required by
+ * the XDR. So that the mbufs copied by reference aren't
+ * modified, add an mbuf with the zero'd bytes to the list.
+ * rem will be a maximum of 3, so one zero'd uint32_t is
+ * sufficient.
+ */
+ m3 = m2;
+ while (m3->m_next != NULL)
+ m3 = m3->m_next;
+ NFSMGET(m4);
+ tl = NFSMTOD(m4, uint32_t *);
+ *tl = 0;
+ mbuf_setlen(m4, rem);
+ mbuf_setnext(m3, m4);
+ }
+ return (m2);
+}
+
+/*
+ * Find a file layout that will handle the first bytes of the requested
+ * range and return the information from it needed to the I/O operation.
+ */
+int
+nfscl_findlayoutforio(struct nfscllayout *lyp, uint64_t off, uint32_t rwaccess,
+ struct nfsclflayout **retflpp)
+{
+ struct nfsclflayout *flp, *nflp, *rflp;
+ uint32_t rw;
+
+ rflp = NULL;
+ rw = rwaccess;
+ /* For reading, do the Read list first and then the Write list. */
+ do {
+ if (rw == NFSV4OPEN_ACCESSREAD)
+ flp = LIST_FIRST(&lyp->nfsly_flayread);
+ else
+ flp = LIST_FIRST(&lyp->nfsly_flayrw);
+ while (flp != NULL) {
+ nflp = LIST_NEXT(flp, nfsfl_list);
+ if (flp->nfsfl_off > off)
+ break;
+ if (flp->nfsfl_end > off &&
+ (rflp == NULL || rflp->nfsfl_end < flp->nfsfl_end))
+ rflp = flp;
+ flp = nflp;
+ }
+ if (rw == NFSV4OPEN_ACCESSREAD)
+ rw = NFSV4OPEN_ACCESSWRITE;
+ else
+ rw = 0;
+ } while (rw != 0);
+ if (rflp != NULL) {
+ /* This one covers the most bytes starting at off. */
+ *retflpp = rflp;
+ return (0);
+ }
+ return (EIO);
+}
+
+/*
+ * Do I/O using an NFSv4.1 file layout.
+ */
+static int
+nfscl_doflayoutio(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
+ int *eofp, nfsv4stateid_t *stateidp, int rwflag, struct nfscldevinfo *dp,
+ struct nfscllayout *lyp, struct nfsclflayout *flp, uint64_t off,
+ uint64_t len, int docommit, struct ucred *cred, NFSPROC_T *p)
+{
+ uint64_t io_off, rel_off, stripe_unit_size, transfer, xfer;
+ int commit_thru_mds, error, stripe_index, stripe_pos;
+ struct nfsnode *np;
+ struct nfsfh *fhp;
+ struct nfsclds **dspp;
+
+ np = VTONFS(vp);
+ rel_off = off - flp->nfsfl_patoff;
+ stripe_unit_size = (flp->nfsfl_util >> 6) & 0x3ffffff;
+ stripe_pos = (rel_off / stripe_unit_size + flp->nfsfl_stripe1) %
+ dp->nfsdi_stripecnt;
+ transfer = stripe_unit_size - (rel_off % stripe_unit_size);
+ error = 0;
+
+ /* Loop around, doing I/O for each stripe unit. */
+ while (len > 0 && error == 0) {
+ stripe_index = nfsfldi_stripeindex(dp, stripe_pos);
+ dspp = nfsfldi_addr(dp, stripe_index);
+ if (len > transfer && docommit == 0)
+ xfer = transfer;
+ else
+ xfer = len;
+ if ((flp->nfsfl_util & NFSFLAYUTIL_DENSE) != 0) {
+ /* Dense layout. */
+ if (stripe_pos >= flp->nfsfl_fhcnt)
+ return (EIO);
+ fhp = flp->nfsfl_fh[stripe_pos];
+ io_off = (rel_off / (stripe_unit_size *
+ dp->nfsdi_stripecnt)) * stripe_unit_size +
+ rel_off % stripe_unit_size;
+ } else {
+ /* Sparse layout. */
+ if (flp->nfsfl_fhcnt > 1) {
+ if (stripe_index >= flp->nfsfl_fhcnt)
+ return (EIO);
+ fhp = flp->nfsfl_fh[stripe_index];
+ } else if (flp->nfsfl_fhcnt == 1)
+ fhp = flp->nfsfl_fh[0];
+ else
+ fhp = np->n_fhp;
+ io_off = off;
+ }
+ if ((flp->nfsfl_util & NFSFLAYUTIL_COMMIT_THRU_MDS) != 0) {
+ commit_thru_mds = 1;
+ if (docommit != 0)
+ error = EIO;
+ } else {
+ commit_thru_mds = 0;
+ NFSLOCKNODE(np);
+ np->n_flag |= NDSCOMMIT;
+ NFSUNLOCKNODE(np);
+ }
+ if (docommit != 0) {
+ if (error == 0)
+ error = nfsrpc_commitds(vp, io_off, xfer,
+ *dspp, fhp, 0, 0, cred, p);
+ if (error == 0) {
+ /*
+ * Set both eof and uio_resid = 0 to end any
+ * loops.
+ */
+ *eofp = 1;
+ uiop->uio_resid = 0;
+ } else {
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDSCOMMIT;
+ NFSUNLOCKNODE(np);
+ }
+ } else if (rwflag == NFSV4OPEN_ACCESSREAD)
+ error = nfsrpc_readds(vp, uiop, stateidp, eofp, *dspp,
+ io_off, xfer, fhp, 0, 0, 0, cred, p);
+ else {
+ error = nfsrpc_writeds(vp, uiop, iomode, must_commit,
+ stateidp, *dspp, io_off, xfer, fhp, commit_thru_mds,
+ 0, 0, 0, cred, p);
+ if (error == 0) {
+ NFSLOCKCLSTATE();
+ lyp->nfsly_flags |= NFSLY_WRITTEN;
+ NFSUNLOCKCLSTATE();
+ }
+ }
+ if (error == 0) {
+ transfer = stripe_unit_size;
+ stripe_pos = (stripe_pos + 1) % dp->nfsdi_stripecnt;
+ len -= xfer;
+ off += xfer;
+ }
+ }
+ return (error);
+}
+
+/*
+ * Do I/O using an NFSv4.1 flex file layout.
+ */
+static int
+nfscl_dofflayoutio(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
+ int *eofp, nfsv4stateid_t *stateidp, int rwflag, struct nfscldevinfo *dp,
+ struct nfscllayout *lyp, struct nfsclflayout *flp, uint64_t off,
+ uint64_t len, int mirror, int docommit, struct mbuf *mp,
+ struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p)
+{
+ uint64_t transfer, xfer;
+ int error, rel_off;
+ struct nfsnode *np;
+ struct nfsfh *fhp;
+ struct nfsclds **dspp;
+ struct ucred *tcred;
+ struct mbuf *m;
+
+ np = VTONFS(vp);
+ error = 0;
+ rel_off = 0;
+ NFSCL_DEBUG(4, "nfscl_dofflayoutio: off=%ju len=%ju\n", (uintmax_t)off,
+ (uintmax_t)len);
+ /* Loop around, doing I/O for each stripe unit. */
+ while (len > 0 && error == 0) {
+ dspp = nfsfldi_addr(dp, 0);
+ fhp = flp->nfsfl_ffm[mirror].fh[dp->nfsdi_versindex];
+ stateidp = &flp->nfsfl_ffm[mirror].st;
+ NFSCL_DEBUG(4, "mirror=%d vind=%d fhlen=%d st.seqid=0x%x\n",
+ mirror, dp->nfsdi_versindex, fhp->nfh_len, stateidp->seqid);
+ if ((dp->nfsdi_flags & NFSDI_TIGHTCOUPLED) == 0) {
+ tcred = NFSNEWCRED(cred);
+ tcred->cr_uid = flp->nfsfl_ffm[mirror].user;
+ tcred->cr_groups[0] = flp->nfsfl_ffm[mirror].group;
+ tcred->cr_ngroups = 1;
+ } else
+ tcred = cred;
+ if (rwflag == NFSV4OPEN_ACCESSREAD)
+ transfer = dp->nfsdi_rsize;
+ else
+ transfer = dp->nfsdi_wsize;
+ NFSLOCKNODE(np);
+ np->n_flag |= NDSCOMMIT;
+ NFSUNLOCKNODE(np);
+ if (len > transfer && docommit == 0)
+ xfer = transfer;
+ else
+ xfer = len;
+ if (docommit != 0) {
+ if (error == 0) {
+ /*
+ * Do last mirrored DS commit with this thread.
+ */
+ if (mirror < flp->nfsfl_mirrorcnt - 1)
+ error = nfsio_commitds(vp, off, xfer,
+ *dspp, fhp, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, drpc, tcred,
+ p);
+ else
+ error = nfsrpc_commitds(vp, off, xfer,
+ *dspp, fhp, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, tcred, p);
+ NFSCL_DEBUG(4, "commitds=%d\n", error);
+ if (error != 0 && error != EACCES && error !=
+ ESTALE) {
+ NFSCL_DEBUG(4,
+ "DS layreterr for commit\n");
+ nfscl_dserr(NFSV4OP_COMMIT, error, dp,
+ lyp, *dspp);
+ }
+ }
+ NFSCL_DEBUG(4, "aft nfsio_commitds=%d\n", error);
+ if (error == 0) {
+ /*
+ * Set both eof and uio_resid = 0 to end any
+ * loops.
+ */
+ *eofp = 1;
+ uiop->uio_resid = 0;
+ } else {
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDSCOMMIT;
+ NFSUNLOCKNODE(np);
+ }
+ } else if (rwflag == NFSV4OPEN_ACCESSREAD) {
+ error = nfsrpc_readds(vp, uiop, stateidp, eofp, *dspp,
+ off, xfer, fhp, 1, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, tcred, p);
+ NFSCL_DEBUG(4, "readds=%d\n", error);
+ if (error != 0 && error != EACCES && error != ESTALE) {
+ NFSCL_DEBUG(4, "DS layreterr for read\n");
+ nfscl_dserr(NFSV4OP_READ, error, dp, lyp,
+ *dspp);
+ }
+ } else {
+ if (flp->nfsfl_mirrorcnt == 1) {
+ error = nfsrpc_writeds(vp, uiop, iomode,
+ must_commit, stateidp, *dspp, off, xfer,
+ fhp, 0, 1, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, tcred, p);
+ if (error == 0) {
+ NFSLOCKCLSTATE();
+ lyp->nfsly_flags |= NFSLY_WRITTEN;
+ NFSUNLOCKCLSTATE();
+ }
+ } else {
+ m = nfsm_copym(mp, rel_off, xfer);
+ NFSCL_DEBUG(4, "mcopy reloff=%d xfer=%jd\n",
+ rel_off, (uintmax_t)xfer);
+ /*
+ * Do last write to a mirrored DS with this
+ * thread.
+ */
+ if (mirror < flp->nfsfl_mirrorcnt - 1)
+ error = nfsio_writedsmir(vp, iomode,
+ must_commit, stateidp, *dspp, off,
+ xfer, fhp, m, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, drpc, tcred,
+ p);
+ else
+ error = nfsrpc_writedsmir(vp, iomode,
+ must_commit, stateidp, *dspp, off,
+ xfer, fhp, m, dp->nfsdi_vers,
+ dp->nfsdi_minorvers, tcred, p);
+ NFSCL_DEBUG(4, "nfsio_writedsmir=%d\n", error);
+ if (error != 0 && error != EACCES && error !=
+ ESTALE) {
+ NFSCL_DEBUG(4,
+ "DS layreterr for write\n");
+ nfscl_dserr(NFSV4OP_WRITE, error, dp,
+ lyp, *dspp);
+ }
+ }
+ }
+ NFSCL_DEBUG(4, "aft read/writeds=%d\n", error);
+ if (error == 0) {
+ len -= xfer;
+ off += xfer;
+ rel_off += xfer;
+ }
+ if ((dp->nfsdi_flags & NFSDI_TIGHTCOUPLED) == 0)
+ NFSFREECRED(tcred);
+ }
+ NFSCL_DEBUG(4, "eo nfscl_dofflayoutio=%d\n", error);
+ return (error);
+}
+
+/*
+ * The actual read RPC done to a DS.
+ */
+static int
+nfsrpc_readds(vnode_t vp, struct uio *uiop, nfsv4stateid_t *stateidp, int *eofp,
+ struct nfsclds *dsp, uint64_t io_off, int len, struct nfsfh *fhp, int flex,
+ int vers, int minorvers, struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ int attrflag, error, retlen;
+ struct nfsrv_descript nfsd;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfsrv_descript *nd = &nfsd;
+ struct nfssockreq *nrp;
+ struct nfsvattr na;
+
+ nd->nd_mrep = NULL;
+ if (vers == 0 || vers == NFS_VER4) {
+ nfscl_reqstart(nd, NFSPROC_READDS, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ vers = NFS_VER4;
+ NFSCL_DEBUG(4, "nfsrpc_readds: vers4 minvers=%d\n", minorvers);
+ if (flex != 0)
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ else
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSEQIDZERO);
+ } else {
+ nfscl_reqstart(nd, NFSPROC_READ, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ NFSCL_DEBUG(4, "nfsrpc_readds: vers3\n");
+ }
+ NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED * 3);
+ txdr_hyper(io_off, tl);
+ *(tl + 2) = txdr_unsigned(len);
+ nrp = dsp->nfsclds_sockp;
+ NFSCL_DEBUG(4, "nfsrpc_readds: nrp=%p\n", nrp);
+ if (nrp == NULL)
+ /* If NULL, use the MDS socket. */
+ nrp = &nmp->nm_sockreq;
+ error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred,
+ NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess);
+ NFSCL_DEBUG(4, "nfsrpc_readds: stat=%d err=%d\n", nd->nd_repstat,
+ error);
+ if (error != 0)
+ return (error);
+ if (vers == NFS_VER3) {
+ error = nfscl_postop_attr(nd, &na, &attrflag, NULL);
+ NFSCL_DEBUG(4, "nfsrpc_readds: postop=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ }
+ if (nd->nd_repstat != 0) {
+ error = nd->nd_repstat;
+ goto nfsmout;
+ }
+ if (vers == NFS_VER3) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ *eofp = fxdr_unsigned(int, *(tl + 1));
+ } else {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ *eofp = fxdr_unsigned(int, *tl);
+ }
+ NFSM_STRSIZ(retlen, len);
+ NFSCL_DEBUG(4, "nfsrpc_readds: retlen=%d eof=%d\n", retlen, *eofp);
+ error = nfsm_mbufuio(nd, uiop, retlen);
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * The actual write RPC done to a DS.
+ */
+static int
+nfsrpc_writeds(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit,
+ nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t io_off, int len,
+ struct nfsfh *fhp, int commit_thru_mds, int flex, int vers, int minorvers,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ int attrflag, error, rlen, commit, committed = NFSWRITE_FILESYNC;
+ int32_t backup;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ struct nfssockreq *nrp;
+ struct nfsvattr na;
+
+ KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1"));
+ nd->nd_mrep = NULL;
+ if (vers == 0 || vers == NFS_VER4) {
+ nfscl_reqstart(nd, NFSPROC_WRITEDS, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ NFSCL_DEBUG(4, "nfsrpc_writeds: vers4 minvers=%d\n", minorvers);
+ vers = NFS_VER4;
+ if (flex != 0)
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ else
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSEQIDZERO);
+ NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED);
+ } else {
+ nfscl_reqstart(nd, NFSPROC_WRITE, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ NFSCL_DEBUG(4, "nfsrpc_writeds: vers3\n");
+ NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 3 * NFSX_UNSIGNED);
+ }
+ txdr_hyper(io_off, tl);
+ tl += 2;
+ if (vers == NFS_VER3)
+ *tl++ = txdr_unsigned(len);
+ *tl++ = txdr_unsigned(*iomode);
+ *tl = txdr_unsigned(len);
+ nfsm_uiombuf(nd, uiop, len);
+ nrp = dsp->nfsclds_sockp;
+ if (nrp == NULL)
+ /* If NULL, use the MDS socket. */
+ nrp = &nmp->nm_sockreq;
+ error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred,
+ NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess);
+ NFSCL_DEBUG(4, "nfsrpc_writeds: err=%d stat=%d\n", error,
+ nd->nd_repstat);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat != 0) {
+ /*
+ * In case the rpc gets retried, roll
+ * the uio fileds changed by nfsm_uiombuf()
+ * back.
+ */
+ uiop->uio_offset -= len;
+ uio_uio_resid_add(uiop, len);
+ uio_iov_base_add(uiop, -len);
+ uio_iov_len_add(uiop, len);
+ error = nd->nd_repstat;
+ } else {
+ if (vers == NFS_VER3) {
+ error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL,
+ NULL);
+ NFSCL_DEBUG(4, "nfsrpc_writeds: wcc_data=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_VERF);
+ rlen = fxdr_unsigned(int, *tl++);
+ NFSCL_DEBUG(4, "nfsrpc_writeds: len=%d rlen=%d\n", len, rlen);
+ if (rlen == 0) {
+ error = NFSERR_IO;
+ goto nfsmout;
+ } else if (rlen < len) {
+ backup = len - rlen;
+ uio_iov_base_add(uiop, -(backup));
+ uio_iov_len_add(uiop, backup);
+ uiop->uio_offset -= backup;
+ uio_uio_resid_add(uiop, backup);
+ len = rlen;
+ }
+ commit = fxdr_unsigned(int, *tl++);
+
+ /*
+ * Return the lowest commitment level
+ * obtained by any of the RPCs.
+ */
+ if (committed == NFSWRITE_FILESYNC)
+ committed = commit;
+ else if (committed == NFSWRITE_DATASYNC &&
+ commit == NFSWRITE_UNSTABLE)
+ committed = commit;
+ if (commit_thru_mds != 0) {
+ NFSLOCKMNT(nmp);
+ if (!NFSHASWRITEVERF(nmp)) {
+ NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF);
+ NFSSETWRITEVERF(nmp);
+ } else if (NFSBCMP(tl, nmp->nm_verf, NFSX_VERF)) {
+ *must_commit = 1;
+ NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF);
+ }
+ NFSUNLOCKMNT(nmp);
+ } else {
+ NFSLOCKDS(dsp);
+ if ((dsp->nfsclds_flags & NFSCLDS_HASWRITEVERF) == 0) {
+ NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF);
+ dsp->nfsclds_flags |= NFSCLDS_HASWRITEVERF;
+ } else if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) {
+ *must_commit = 1;
+ NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF);
+ }
+ NFSUNLOCKDS(dsp);
+ }
+ }
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ *iomode = committed;
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+ return (error);
+}
+
+/*
+ * The actual write RPC done to a DS.
+ * This variant is called from a separate kernel process for mirrors.
+ * Any short write is considered an IO error.
+ */
+static int
+nfsrpc_writedsmir(vnode_t vp, int *iomode, int *must_commit,
+ nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t io_off, int len,
+ struct nfsfh *fhp, struct mbuf *m, int vers, int minorvers,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ int attrflag, error, commit, committed = NFSWRITE_FILESYNC, rlen;
+ struct nfsrv_descript nfsd;
+ struct nfsrv_descript *nd = &nfsd;
+ struct nfssockreq *nrp;
+ struct nfsvattr na;
+
+ nd->nd_mrep = NULL;
+ if (vers == 0 || vers == NFS_VER4) {
+ nfscl_reqstart(nd, NFSPROC_WRITEDS, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ vers = NFS_VER4;
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: vers4 minvers=%d\n",
+ minorvers);
+ nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID);
+ NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED);
+ } else {
+ nfscl_reqstart(nd, NFSPROC_WRITE, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: vers3\n");
+ NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 3 * NFSX_UNSIGNED);
+ }
+ txdr_hyper(io_off, tl);
+ tl += 2;
+ if (vers == NFS_VER3)
+ *tl++ = txdr_unsigned(len);
+ *tl++ = txdr_unsigned(*iomode);
+ *tl = txdr_unsigned(len);
+ if (len > 0) {
+ /* Put data in mbuf chain. */
+ nd->nd_mb->m_next = m;
+ /* Set nd_mb and nd_bpos to end of data. */
+ while (m->m_next != NULL)
+ m = m->m_next;
+ nd->nd_mb = m;
+ nd->nd_bpos = mtod(m, char *) + m->m_len;
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: lastmb len=%d\n", m->m_len);
+ }
+ nrp = dsp->nfsclds_sockp;
+ if (nrp == NULL)
+ /* If NULL, use the MDS socket. */
+ nrp = &nmp->nm_sockreq;
+ error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred,
+ NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess);
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: err=%d stat=%d\n", error,
+ nd->nd_repstat);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat != 0)
+ error = nd->nd_repstat;
+ else {
+ if (vers == NFS_VER3) {
+ error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL,
+ NULL);
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: wcc_data=%d\n",
+ error);
+ if (error != 0)
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_VERF);
+ rlen = fxdr_unsigned(int, *tl++);
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: len=%d rlen=%d\n", len,
+ rlen);
+ if (rlen != len) {
+ error = NFSERR_IO;
+ NFSCL_DEBUG(4, "nfsrpc_writedsmir: len=%d rlen=%d\n",
+ len, rlen);
+ goto nfsmout;
+ }
+ commit = fxdr_unsigned(int, *tl++);
+
+ /*
+ * Return the lowest commitment level
+ * obtained by any of the RPCs.
+ */
+ if (committed == NFSWRITE_FILESYNC)
+ committed = commit;
+ else if (committed == NFSWRITE_DATASYNC &&
+ commit == NFSWRITE_UNSTABLE)
+ committed = commit;
+ NFSLOCKDS(dsp);
+ if ((dsp->nfsclds_flags & NFSCLDS_HASWRITEVERF) == 0) {
+ NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF);
+ dsp->nfsclds_flags |= NFSCLDS_HASWRITEVERF;
+ } else if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) {
+ *must_commit = 1;
+ NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF);
+ }
+ NFSUNLOCKDS(dsp);
+ }
+nfsmout:
+ if (nd->nd_mrep != NULL)
+ mbuf_freem(nd->nd_mrep);
+ *iomode = committed;
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+ return (error);
+}
+
+/*
+ * Start up the thread that will execute nfsrpc_writedsmir().
+ */
+static void
+start_writedsmir(void *arg, int pending)
+{
+ struct nfsclwritedsdorpc *drpc;
+
+ drpc = (struct nfsclwritedsdorpc *)arg;
+ drpc->err = nfsrpc_writedsmir(drpc->vp, &drpc->iomode,
+ &drpc->must_commit, drpc->stateidp, drpc->dsp, drpc->off, drpc->len,
+ drpc->fhp, drpc->m, drpc->vers, drpc->minorvers, drpc->cred,
+ drpc->p);
+ drpc->done = 1;
+ NFSCL_DEBUG(4, "start_writedsmir: err=%d\n", drpc->err);
+}
+
+/*
+ * Set up the write DS mirror call for the pNFS I/O thread.
+ */
+static int
+nfsio_writedsmir(vnode_t vp, int *iomode, int *must_commit,
+ nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t off, int len,
+ struct nfsfh *fhp, struct mbuf *m, int vers, int minorvers,
+ struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p)
+{
+ int error, ret;
+
+ error = 0;
+ drpc->done = 0;
+ drpc->vp = vp;
+ drpc->iomode = *iomode;
+ drpc->must_commit = *must_commit;
+ drpc->stateidp = stateidp;
+ drpc->dsp = dsp;
+ drpc->off = off;
+ drpc->len = len;
+ drpc->fhp = fhp;
+ drpc->m = m;
+ drpc->vers = vers;
+ drpc->minorvers = minorvers;
+ drpc->cred = cred;
+ drpc->p = p;
+ drpc->inprog = 0;
+ ret = EIO;
+ if (nfs_pnfsiothreads != 0) {
+ ret = nfs_pnfsio(start_writedsmir, drpc);
+ NFSCL_DEBUG(4, "nfsio_writedsmir: nfs_pnfsio=%d\n", ret);
+ }
+ if (ret != 0)
+ error = nfsrpc_writedsmir(vp, iomode, must_commit, stateidp,
+ dsp, off, len, fhp, m, vers, minorvers, cred, p);
+ NFSCL_DEBUG(4, "nfsio_writedsmir: error=%d\n", error);
+ return (error);
+}
+
+/*
+ * Free up the nfsclds structure.
+ */
+void
+nfscl_freenfsclds(struct nfsclds *dsp)
+{
+ int i;
+
+ if (dsp == NULL)
+ return;
+ if (dsp->nfsclds_sockp != NULL) {
+ NFSFREECRED(dsp->nfsclds_sockp->nr_cred);
+ NFSFREEMUTEX(&dsp->nfsclds_sockp->nr_mtx);
+ free(dsp->nfsclds_sockp->nr_nam, M_SONAME);
+ free(dsp->nfsclds_sockp, M_NFSSOCKREQ);
+ }
+ NFSFREEMUTEX(&dsp->nfsclds_mtx);
+ NFSFREEMUTEX(&dsp->nfsclds_sess.nfsess_mtx);
+ for (i = 0; i < NFSV4_CBSLOTS; i++) {
+ if (dsp->nfsclds_sess.nfsess_cbslots[i].nfssl_reply != NULL)
+ m_freem(
+ dsp->nfsclds_sess.nfsess_cbslots[i].nfssl_reply);
+ }
+ free(dsp, M_NFSCLDS);
+}
+
+static enum nfsclds_state
+nfscl_getsameserver(struct nfsmount *nmp, struct nfsclds *newdsp,
+ struct nfsclds **retdspp, uint32_t *sequencep)
+{
+ struct nfsclds *dsp;
+ int fndseq;
+
+ /*
+ * Search the list of nfsclds structures for one with the same
+ * server.
+ */
+ fndseq = 0;
+ TAILQ_FOREACH(dsp, &nmp->nm_sess, nfsclds_list) {
+ if (dsp->nfsclds_servownlen == newdsp->nfsclds_servownlen &&
+ dsp->nfsclds_servownlen != 0 &&
+ !NFSBCMP(dsp->nfsclds_serverown, newdsp->nfsclds_serverown,
+ dsp->nfsclds_servownlen) &&
+ dsp->nfsclds_sess.nfsess_defunct == 0) {
+ NFSCL_DEBUG(4, "fnd same fdsp=%p dsp=%p flg=0x%x\n",
+ TAILQ_FIRST(&nmp->nm_sess), dsp,
+ dsp->nfsclds_flags);
+ if (fndseq == 0) {
+ /* Get sequenceid# from first entry. */
+ *sequencep =
+ dsp->nfsclds_sess.nfsess_sequenceid;
+ fndseq = 1;
+ }
+ /* Server major id matches. */
+ if ((dsp->nfsclds_flags & NFSCLDS_DS) != 0) {
+ *retdspp = dsp;
+ return (NFSDSP_USETHISSESSION);
+ }
+
+ }
+ }
+ if (fndseq != 0)
+ return (NFSDSP_SEQTHISSESSION);
+ return (NFSDSP_NOTFOUND);
+}
+
+/*
+ * NFS commit rpc to a NFSv4.1 DS.
+ */
+static int
+nfsrpc_commitds(vnode_t vp, uint64_t offset, int cnt, struct nfsclds *dsp,
+ struct nfsfh *fhp, int vers, int minorvers, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ struct nfssockreq *nrp;
+ struct nfsvattr na;
+ int attrflag, error;
+
+ nd->nd_mrep = NULL;
+ if (vers == 0 || vers == NFS_VER4) {
+ nfscl_reqstart(nd, NFSPROC_COMMITDS, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ vers = NFS_VER4;
+ } else
+ nfscl_reqstart(nd, NFSPROC_COMMIT, nmp, fhp->nfh_fh,
+ fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers);
+ NFSCL_DEBUG(4, "nfsrpc_commitds: vers=%d minvers=%d\n", vers,
+ minorvers);
+ NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + NFSX_UNSIGNED);
+ txdr_hyper(offset, tl);
+ tl += 2;
+ *tl = txdr_unsigned(cnt);
+ nrp = dsp->nfsclds_sockp;
+ if (nrp == NULL)
+ /* If NULL, use the MDS socket. */
+ nrp = &nmp->nm_sockreq;
+ error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred,
+ NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess);
+ NFSCL_DEBUG(4, "nfsrpc_commitds: err=%d stat=%d\n", error,
+ nd->nd_repstat);
+ if (error != 0)
+ return (error);
+ if (nd->nd_repstat == 0) {
+ if (vers == NFS_VER3) {
+ error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL,
+ NULL);
+ NFSCL_DEBUG(4, "nfsrpc_commitds: wccdata=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ }
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
+ NFSLOCKDS(dsp);
+ if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) {
+ NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF);
+ error = NFSERR_STALEWRITEVERF;
+ }
+ NFSUNLOCKDS(dsp);
+ }
+nfsmout:
+ if (error == 0 && nd->nd_repstat != 0)
+ error = nd->nd_repstat;
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Start up the thread that will execute nfsrpc_commitds().
+ */
+static void
+start_commitds(void *arg, int pending)
+{
+ struct nfsclwritedsdorpc *drpc;
+
+ drpc = (struct nfsclwritedsdorpc *)arg;
+ drpc->err = nfsrpc_commitds(drpc->vp, drpc->off, drpc->len,
+ drpc->dsp, drpc->fhp, drpc->vers, drpc->minorvers, drpc->cred,
+ drpc->p);
+ drpc->done = 1;
+ NFSCL_DEBUG(4, "start_commitds: err=%d\n", drpc->err);
+}
+
+/*
+ * Set up the commit DS mirror call for the pNFS I/O thread.
+ */
+static int
+nfsio_commitds(vnode_t vp, uint64_t offset, int cnt, struct nfsclds *dsp,
+ struct nfsfh *fhp, int vers, int minorvers,
+ struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p)
+{
+ int error, ret;
+
+ error = 0;
+ drpc->done = 0;
+ drpc->vp = vp;
+ drpc->off = offset;
+ drpc->len = cnt;
+ drpc->dsp = dsp;
+ drpc->fhp = fhp;
+ drpc->vers = vers;
+ drpc->minorvers = minorvers;
+ drpc->cred = cred;
+ drpc->p = p;
+ drpc->inprog = 0;
+ ret = EIO;
+ if (nfs_pnfsiothreads != 0) {
+ ret = nfs_pnfsio(start_commitds, drpc);
+ NFSCL_DEBUG(4, "nfsio_commitds: nfs_pnfsio=%d\n", ret);
+ }
+ if (ret != 0)
+ error = nfsrpc_commitds(vp, offset, cnt, dsp, fhp, vers,
+ minorvers, cred, p);
+ NFSCL_DEBUG(4, "nfsio_commitds: error=%d\n", error);
+ return (error);
+}
+
+/*
+ * Set up the XDR arguments for the LayoutGet operation.
+ */
+static void
+nfsrv_setuplayoutget(struct nfsrv_descript *nd, int iomode, uint64_t offset,
+ uint64_t len, uint64_t minlen, nfsv4stateid_t *stateidp, int layouttype,
+ int layoutlen, int usecurstateid)
+{
+ uint32_t *tl;
+
+ NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED + 3 * NFSX_HYPER +
+ NFSX_STATEID);
+ *tl++ = newnfs_false; /* Don't signal availability. */
+ *tl++ = txdr_unsigned(layouttype);
+ *tl++ = txdr_unsigned(iomode);
+ txdr_hyper(offset, tl);
+ tl += 2;
+ txdr_hyper(len, tl);
+ tl += 2;
+ txdr_hyper(minlen, tl);
+ tl += 2;
+ if (usecurstateid != 0) {
+ /* Special stateid for Current stateid. */
+ *tl++ = txdr_unsigned(1);
+ *tl++ = 0;
+ *tl++ = 0;
+ *tl++ = 0;
+ } else {
+ *tl++ = txdr_unsigned(stateidp->seqid);
+ NFSCL_DEBUG(4, "layget seq=%d\n", (int)stateidp->seqid);
+ *tl++ = stateidp->other[0];
+ *tl++ = stateidp->other[1];
+ *tl++ = stateidp->other[2];
+ }
+ *tl = txdr_unsigned(layoutlen);
+}
+
+/*
+ * Parse the reply for a successful LayoutGet operation.
+ */
+static int
+nfsrv_parselayoutget(struct nfsrv_descript *nd, nfsv4stateid_t *stateidp,
+ int *retonclosep, struct nfsclflayouthead *flhp)
+{
+ uint32_t *tl;
+ struct nfsclflayout *flp, *prevflp, *tflp;
+ int cnt, error, fhcnt, gotiomode, i, iomode, j, k, l, laytype, nfhlen;
+ int m, mirrorcnt;
+ uint64_t retlen, off;
+ struct nfsfh *nfhp;
+ uint8_t *cp;
+ uid_t user;
+ gid_t grp;
+
+ NFSCL_DEBUG(4, "in nfsrv_parselayoutget\n");
+ error = 0;
+ flp = NULL;
+ gotiomode = -1;
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_STATEID);
+ if (*tl++ != 0)
+ *retonclosep = 1;
+ else
+ *retonclosep = 0;
+ stateidp->seqid = fxdr_unsigned(uint32_t, *tl++);
+ NFSCL_DEBUG(4, "retoncls=%d stseq=%d\n", *retonclosep,
+ (int)stateidp->seqid);
+ stateidp->other[0] = *tl++;
+ stateidp->other[1] = *tl++;
+ stateidp->other[2] = *tl++;
+ cnt = fxdr_unsigned(int, *tl);
+ NFSCL_DEBUG(4, "layg cnt=%d\n", cnt);
+ if (cnt <= 0 || cnt > 10000) {
+ /* Don't accept more than 10000 layouts in reply. */
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ for (i = 0; i < cnt; i++) {
+ /* Dissect to the layout type. */
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_HYPER +
+ 3 * NFSX_UNSIGNED);
+ off = fxdr_hyper(tl); tl += 2;
+ retlen = fxdr_hyper(tl); tl += 2;
+ iomode = fxdr_unsigned(int, *tl++);
+ laytype = fxdr_unsigned(int, *tl);
+ NFSCL_DEBUG(4, "layt=%d off=%ju len=%ju iom=%d\n", laytype,
+ (uintmax_t)off, (uintmax_t)retlen, iomode);
+ /* Ignore length of layout body for now. */
+ if (laytype == NFSLAYOUT_NFSV4_1_FILES) {
+ /* Parse the File layout up to fhcnt. */
+ NFSM_DISSECT(tl, uint32_t *, 3 * NFSX_UNSIGNED +
+ NFSX_HYPER + NFSX_V4DEVICEID);
+ fhcnt = fxdr_unsigned(int, *(tl + 4 +
+ NFSX_V4DEVICEID / NFSX_UNSIGNED));
+ NFSCL_DEBUG(4, "fhcnt=%d\n", fhcnt);
+ if (fhcnt < 0 || fhcnt > 100) {
+ /* Don't accept more than 100 file handles. */
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (fhcnt > 0)
+ flp = malloc(sizeof(*flp) + fhcnt *
+ sizeof(struct nfsfh *), M_NFSFLAYOUT,
+ M_WAITOK);
+ else
+ flp = malloc(sizeof(*flp), M_NFSFLAYOUT,
+ M_WAITOK);
+ flp->nfsfl_flags = NFSFL_FILE;
+ flp->nfsfl_fhcnt = 0;
+ flp->nfsfl_devp = NULL;
+ flp->nfsfl_off = off;
+ if (flp->nfsfl_off + retlen < flp->nfsfl_off)
+ flp->nfsfl_end = UINT64_MAX - flp->nfsfl_off;
+ else
+ flp->nfsfl_end = flp->nfsfl_off + retlen;
+ flp->nfsfl_iomode = iomode;
+ if (gotiomode == -1)
+ gotiomode = flp->nfsfl_iomode;
+ /* Ignore layout body length for now. */
+ NFSBCOPY(tl, flp->nfsfl_dev, NFSX_V4DEVICEID);
+ tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED);
+ flp->nfsfl_util = fxdr_unsigned(uint32_t, *tl++);
+ NFSCL_DEBUG(4, "flutil=0x%x\n", flp->nfsfl_util);
+ flp->nfsfl_stripe1 = fxdr_unsigned(uint32_t, *tl++);
+ flp->nfsfl_patoff = fxdr_hyper(tl); tl += 2;
+ NFSCL_DEBUG(4, "stripe1=%u poff=%ju\n",
+ flp->nfsfl_stripe1, (uintmax_t)flp->nfsfl_patoff);
+ for (j = 0; j < fhcnt; j++) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ nfhlen = fxdr_unsigned(int, *tl);
+ if (nfhlen <= 0 || nfhlen > NFSX_V4FHMAX) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ nfhp = malloc(sizeof(*nfhp) + nfhlen - 1,
+ M_NFSFH, M_WAITOK);
+ flp->nfsfl_fh[j] = nfhp;
+ flp->nfsfl_fhcnt++;
+ nfhp->nfh_len = nfhlen;
+ NFSM_DISSECT(cp, uint8_t *, NFSM_RNDUP(nfhlen));
+ NFSBCOPY(cp, nfhp->nfh_fh, nfhlen);
+ }
+ } else if (laytype == NFSLAYOUT_FLEXFILE) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED +
+ NFSX_HYPER);
+ mirrorcnt = fxdr_unsigned(int, *(tl + 2));
+ NFSCL_DEBUG(4, "mirrorcnt=%d\n", mirrorcnt);
+ if (mirrorcnt < 1 || mirrorcnt > NFSDEV_MAXMIRRORS) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ flp = malloc(sizeof(*flp) + mirrorcnt *
+ sizeof(struct nfsffm), M_NFSFLAYOUT, M_WAITOK);
+ flp->nfsfl_flags = NFSFL_FLEXFILE;
+ flp->nfsfl_mirrorcnt = mirrorcnt;
+ for (j = 0; j < mirrorcnt; j++)
+ flp->nfsfl_ffm[j].devp = NULL;
+ flp->nfsfl_off = off;
+ if (flp->nfsfl_off + retlen < flp->nfsfl_off)
+ flp->nfsfl_end = UINT64_MAX - flp->nfsfl_off;
+ else
+ flp->nfsfl_end = flp->nfsfl_off + retlen;
+ flp->nfsfl_iomode = iomode;
+ if (gotiomode == -1)
+ gotiomode = flp->nfsfl_iomode;
+ flp->nfsfl_stripeunit = fxdr_hyper(tl);
+ NFSCL_DEBUG(4, "stripeunit=%ju\n",
+ (uintmax_t)flp->nfsfl_stripeunit);
+ for (j = 0; j < mirrorcnt; j++) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ k = fxdr_unsigned(int, *tl);
+ if (k < 1 || k > 128) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ NFSCL_DEBUG(4, "servercnt=%d\n", k);
+ for (l = 0; l < k; l++) {
+ NFSM_DISSECT(tl, uint32_t *,
+ NFSX_V4DEVICEID + NFSX_STATEID +
+ 2 * NFSX_UNSIGNED);
+ if (l == 0) {
+ /* Just use the first server. */
+ NFSBCOPY(tl,
+ flp->nfsfl_ffm[j].dev,
+ NFSX_V4DEVICEID);
+ tl += (NFSX_V4DEVICEID /
+ NFSX_UNSIGNED);
+ tl++;
+ flp->nfsfl_ffm[j].st.seqid =
+ *tl++;
+ flp->nfsfl_ffm[j].st.other[0] =
+ *tl++;
+ flp->nfsfl_ffm[j].st.other[1] =
+ *tl++;
+ flp->nfsfl_ffm[j].st.other[2] =
+ *tl++;
+ NFSCL_DEBUG(4, "st.seqid=%u "
+ "st.o0=0x%x st.o1=0x%x "
+ "st.o2=0x%x\n",
+ flp->nfsfl_ffm[j].st.seqid,
+ flp->nfsfl_ffm[j].st.other[0],
+ flp->nfsfl_ffm[j].st.other[1],
+ flp->nfsfl_ffm[j].st.other[2]);
+ } else
+ tl += ((NFSX_V4DEVICEID +
+ NFSX_STATEID +
+ NFSX_UNSIGNED) /
+ NFSX_UNSIGNED);
+ fhcnt = fxdr_unsigned(int, *tl);
+ NFSCL_DEBUG(4, "fhcnt=%d\n", fhcnt);
+ if (fhcnt < 1 ||
+ fhcnt > NFSDEV_MAXVERS) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ for (m = 0; m < fhcnt; m++) {
+ NFSM_DISSECT(tl, uint32_t *,
+ NFSX_UNSIGNED);
+ nfhlen = fxdr_unsigned(int,
+ *tl);
+ NFSCL_DEBUG(4, "nfhlen=%d\n",
+ nfhlen);
+ if (nfhlen <= 0 || nfhlen >
+ NFSX_V4FHMAX) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ NFSM_DISSECT(cp, uint8_t *,
+ NFSM_RNDUP(nfhlen));
+ if (l == 0) {
+ flp->nfsfl_ffm[j].fhcnt
+ = fhcnt;
+ nfhp = malloc(
+ sizeof(*nfhp) +
+ nfhlen - 1, M_NFSFH,
+ M_WAITOK);
+ flp->nfsfl_ffm[j].fh[m]
+ = nfhp;
+ nfhp->nfh_len = nfhlen;
+ NFSBCOPY(cp,
+ nfhp->nfh_fh,
+ nfhlen);
+ NFSCL_DEBUG(4,
+ "got fh\n");
+ }
+ }
+ /* Now, get the ffsd_user/ffds_group. */
+ error = nfsrv_parseug(nd, 0, &user,
+ &grp, curthread);
+ NFSCL_DEBUG(4, "after parseu=%d\n",
+ error);
+ if (error == 0)
+ error = nfsrv_parseug(nd, 1,
+ &user, &grp, curthread);
+ NFSCL_DEBUG(4, "aft parseg=%d\n",
+ grp);
+ if (error != 0)
+ goto nfsmout;
+ NFSCL_DEBUG(4, "user=%d group=%d\n",
+ user, grp);
+ if (l == 0) {
+ flp->nfsfl_ffm[j].user = user;
+ flp->nfsfl_ffm[j].group = grp;
+ NFSCL_DEBUG(4,
+ "usr=%d grp=%d\n", user,
+ grp);
+ }
+ }
+ }
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ flp->nfsfl_fflags = fxdr_unsigned(uint32_t, *tl++);
+ flp->nfsfl_statshint = fxdr_unsigned(uint32_t, *tl);
+ NFSCL_DEBUG(4, "fflags=0x%x statshint=%d\n",
+ flp->nfsfl_fflags, flp->nfsfl_statshint);
+ } else {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if (flp->nfsfl_iomode == gotiomode) {
+ /* Keep the list in increasing offset order. */
+ tflp = LIST_FIRST(flhp);
+ prevflp = NULL;
+ while (tflp != NULL &&
+ tflp->nfsfl_off < flp->nfsfl_off) {
+ prevflp = tflp;
+ tflp = LIST_NEXT(tflp, nfsfl_list);
+ }
+ if (prevflp == NULL)
+ LIST_INSERT_HEAD(flhp, flp, nfsfl_list);
+ else
+ LIST_INSERT_AFTER(prevflp, flp,
+ nfsfl_list);
+ NFSCL_DEBUG(4, "flp inserted\n");
+ } else {
+ printf("nfscl_layoutget(): got wrong iomode\n");
+ nfscl_freeflayout(flp);
+ }
+ flp = NULL;
+ }
+nfsmout:
+ NFSCL_DEBUG(4, "eo nfsrv_parselayoutget=%d\n", error);
+ if (error != 0 && flp != NULL)
+ nfscl_freeflayout(flp);
+ return (error);
+}
+
+/*
+ * Parse a user/group digit string.
+ */
+static int
+nfsrv_parseug(struct nfsrv_descript *nd, int dogrp, uid_t *uidp, gid_t *gidp,
+ NFSPROC_T *p)
+{
+ uint32_t *tl;
+ char *cp, *str, str0[NFSV4_SMALLSTR + 1];
+ uint32_t len = 0;
+ int error = 0;
+
+ NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
+ len = fxdr_unsigned(uint32_t, *tl);
+ str = NULL;
+ if (len > NFSV4_OPAQUELIMIT) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ NFSCL_DEBUG(4, "nfsrv_parseug: len=%d\n", len);
+ if (len == 0) {
+ if (dogrp != 0)
+ *gidp = GID_NOGROUP;
+ else
+ *uidp = UID_NOBODY;
+ return (0);
+ }
+ if (len > NFSV4_SMALLSTR)
+ str = malloc(len + 1, M_TEMP, M_WAITOK);
+ else
+ str = str0;
+ NFSM_DISSECT(cp, char *, NFSM_RNDUP(len));
+ NFSBCOPY(cp, str, len);
+ str[len] = '\0';
+ NFSCL_DEBUG(4, "nfsrv_parseug: str=%s\n", str);
+ if (dogrp != 0)
+ error = nfsv4_strtogid(nd, str, len, gidp, p);
+ else
+ error = nfsv4_strtouid(nd, str, len, uidp, p);
+nfsmout:
+ if (len > NFSV4_SMALLSTR)
+ free(str, M_TEMP);
+ NFSCL_DEBUG(4, "eo nfsrv_parseug=%d\n", error);
+ return (error);
+}
+
+/*
+ * Similar to nfsrpc_getlayout(), except that it uses nfsrpc_openlayget(),
+ * so that it does both an Open and a Layoutget.
+ */
+static int
+nfsrpc_getopenlayout(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp,
+ int fhlen, uint8_t *newfhp, int newfhlen, uint32_t mode,
+ struct nfsclopen *op, uint8_t *name, int namelen, struct nfscldeleg **dpp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfscllayout *lyp;
+ struct nfsclflayout *flp;
+ struct nfsclflayouthead flh;
+ int error, islocked, layoutlen, recalled, retonclose, usecurstateid;
+ int layouttype, laystat;
+ nfsv4stateid_t stateid;
+ struct nfsclsession *tsep;
+
+ error = 0;
+ if (NFSHASFLEXFILE(nmp))
+ layouttype = NFSLAYOUT_FLEXFILE;
+ else
+ layouttype = NFSLAYOUT_NFSV4_1_FILES;
+ /*
+ * If lyp is returned non-NULL, there will be a refcnt (shared lock)
+ * on it, iff flp != NULL or a lock (exclusive lock) on it iff
+ * flp == NULL.
+ */
+ lyp = nfscl_getlayout(nmp->nm_clp, newfhp, newfhlen, 0, &flp,
+ &recalled);
+ NFSCL_DEBUG(4, "nfsrpc_getopenlayout nfscl_getlayout lyp=%p\n", lyp);
+ if (lyp == NULL)
+ islocked = 0;
+ else if (flp != NULL)
+ islocked = 1;
+ else
+ islocked = 2;
+ if ((lyp == NULL || flp == NULL) && recalled == 0) {
+ LIST_INIT(&flh);
+ tsep = nfsmnt_mdssession(nmp);
+ layoutlen = tsep->nfsess_maxcache - (NFSX_STATEID +
+ 3 * NFSX_UNSIGNED);
+ if (lyp == NULL)
+ usecurstateid = 1;
+ else {
+ usecurstateid = 0;
+ stateid.seqid = lyp->nfsly_stateid.seqid;
+ stateid.other[0] = lyp->nfsly_stateid.other[0];
+ stateid.other[1] = lyp->nfsly_stateid.other[1];
+ stateid.other[2] = lyp->nfsly_stateid.other[2];
+ }
+ error = nfsrpc_openlayoutrpc(nmp, vp, nfhp, fhlen,
+ newfhp, newfhlen, mode, op, name, namelen,
+ dpp, &stateid, usecurstateid, layouttype, layoutlen,
+ &retonclose, &flh, &laystat, cred, p);
+ NFSCL_DEBUG(4, "aft nfsrpc_openlayoutrpc laystat=%d err=%d\n",
+ laystat, error);
+ laystat = nfsrpc_layoutgetres(nmp, vp, newfhp, newfhlen,
+ &stateid, retonclose, NULL, &lyp, &flh, layouttype, laystat,
+ &islocked, cred, p);
+ } else
+ error = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, newfhlen,
+ mode, op, name, namelen, dpp, 0, 0, cred, p, 0, 0);
+ if (islocked == 2)
+ nfscl_rellayout(lyp, 1);
+ else if (islocked == 1)
+ nfscl_rellayout(lyp, 0);
+ return (error);
+}
+
+/*
+ * This function does an Open+LayoutGet for an NFSv4.1 mount with pNFS
+ * enabled, only for the CLAIM_NULL case. All other NFSv4 Opens are
+ * handled by nfsrpc_openrpc().
+ * For the case where op == NULL, dvp is the directory. When op != NULL, it
+ * can be NULL.
+ */
+static int
+nfsrpc_openlayoutrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp,
+ int fhlen, uint8_t *newfhp, int newfhlen, uint32_t mode,
+ struct nfsclopen *op, uint8_t *name, int namelen, struct nfscldeleg **dpp,
+ nfsv4stateid_t *stateidp, int usecurstateid, int layouttype,
+ int layoutlen, int *retonclosep, struct nfsclflayouthead *flhp,
+ int *laystatp, struct ucred *cred, NFSPROC_T *p)
+{
+ uint32_t *tl;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfscldeleg *ndp = NULL;
+ struct nfsvattr nfsva;
+ struct nfsclsession *tsep;
+ uint32_t rflags, deleg;
+ nfsattrbit_t attrbits;
+ int error, ret, acesize, limitby, iomode;
+
+ *dpp = NULL;
+ *laystatp = ENXIO;
+ nfscl_reqstart(nd, NFSPROC_OPENLAYGET, nmp, nfhp, fhlen, NULL, NULL,
+ 0, 0);
+ NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid);
+ *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH);
+ *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN);
+ NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE);
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL);
+ nfsm_strtom(nd, name, namelen);
+ NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSZERO_ATTRBIT(&attrbits);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE);
+ NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY);
+ nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_LAYOUTGET);
+ if ((mode & NFSV4OPEN_ACCESSWRITE) != 0)
+ iomode = NFSLAYOUTIOMODE_RW;
+ else
+ iomode = NFSLAYOUTIOMODE_READ;
+ nfsrv_setuplayoutget(nd, iomode, 0, UINT64_MAX, 0, stateidp,
+ layouttype, layoutlen, usecurstateid);
+ error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred,
+ NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
+ if (error != 0)
+ return (error);
+ NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd);
+ if (nd->nd_repstat != 0)
+ *laystatp = nd->nd_repstat;
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ /* ND_NOMOREDATA will be set if the Open operation failed. */
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ 6 * NFSX_UNSIGNED);
+ op->nfso_stateid.seqid = *tl++;
+ op->nfso_stateid.other[0] = *tl++;
+ op->nfso_stateid.other[1] = *tl++;
+ op->nfso_stateid.other[2] = *tl;
+ rflags = fxdr_unsigned(u_int32_t, *(tl + 6));
+ error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ if (error != 0)
+ goto nfsmout;
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ deleg = fxdr_unsigned(u_int32_t, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEREAD ||
+ deleg == NFSV4OPEN_DELEGATEWRITE) {
+ if (!(op->nfso_own->nfsow_clp->nfsc_flags &
+ NFSCLFLAGS_FIRSTDELEG))
+ op->nfso_own->nfsow_clp->nfsc_flags |=
+ (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG);
+ ndp = malloc(sizeof(struct nfscldeleg) + newfhlen,
+ M_NFSCLDELEG, M_WAITOK);
+ LIST_INIT(&ndp->nfsdl_owner);
+ LIST_INIT(&ndp->nfsdl_lock);
+ ndp->nfsdl_clp = op->nfso_own->nfsow_clp;
+ ndp->nfsdl_fhlen = newfhlen;
+ NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen);
+ newnfs_copyincred(cred, &ndp->nfsdl_cred);
+ nfscl_lockinit(&ndp->nfsdl_rwlock);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ ndp->nfsdl_stateid.seqid = *tl++;
+ ndp->nfsdl_stateid.other[0] = *tl++;
+ ndp->nfsdl_stateid.other[1] = *tl++;
+ ndp->nfsdl_stateid.other[2] = *tl++;
+ ret = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEWRITE) {
+ ndp->nfsdl_flags = NFSCLDL_WRITE;
+ /*
+ * Indicates how much the file can grow.
+ */
+ NFSM_DISSECT(tl, u_int32_t *,
+ 3 * NFSX_UNSIGNED);
+ limitby = fxdr_unsigned(int, *tl++);
+ switch (limitby) {
+ case NFSV4OPEN_LIMITSIZE:
+ ndp->nfsdl_sizelimit = fxdr_hyper(tl);
+ break;
+ case NFSV4OPEN_LIMITBLOCKS:
+ ndp->nfsdl_sizelimit =
+ fxdr_unsigned(u_int64_t, *tl++);
+ ndp->nfsdl_sizelimit *=
+ fxdr_unsigned(u_int64_t, *tl);
+ break;
+ default:
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ };
+ } else
+ ndp->nfsdl_flags = NFSCLDL_READ;
+ if (ret != 0)
+ ndp->nfsdl_flags |= NFSCLDL_RECALL;
+ error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret,
+ &acesize, p);
+ if (error != 0)
+ goto nfsmout;
+ } else if (deleg != NFSV4OPEN_DELEGATENONE) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+ if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) != 0 ||
+ nfscl_assumeposixlocks)
+ op->nfso_posixlock = 1;
+ else
+ op->nfso_posixlock = 0;
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ /* If the 2nd element == NFS_OK, the Getattr succeeded. */
+ if (*++tl == 0) {
+ error = nfsv4_loadattr(nd, NULL, &nfsva, NULL,
+ NULL, 0, NULL, NULL, NULL, NULL, NULL, 0,
+ NULL, NULL, NULL, p, cred);
+ if (error != 0)
+ goto nfsmout;
+ if (ndp != NULL) {
+ ndp->nfsdl_change = nfsva.na_filerev;
+ ndp->nfsdl_modtime = nfsva.na_mtime;
+ ndp->nfsdl_flags |= NFSCLDL_MODTIMESET;
+ *dpp = ndp;
+ ndp = NULL;
+ }
+ /*
+ * At this point, the Open has succeeded, so set
+ * nd_repstat = NFS_OK. If the Layoutget failed,
+ * this function just won't return a layout.
+ */
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ *laystatp = fxdr_unsigned(int, *++tl);
+ if (*laystatp == 0) {
+ error = nfsrv_parselayoutget(nd,
+ stateidp, retonclosep, flhp);
+ if (error != 0)
+ *laystatp = error;
+ }
+ } else
+ nd->nd_repstat = 0; /* Return 0 for Open. */
+ }
+ }
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+nfsmout:
+ free(ndp, M_NFSCLDELEG);
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Similar nfsrpc_createv4(), but also does the LayoutGet operation.
+ * Used only for mounts with pNFS enabled.
+ */
+static int
+nfsrpc_createlayout(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
+ int *dattrflagp, void *dstuff, int *unlockedp, nfsv4stateid_t *stateidp,
+ int usecurstateid, int layouttype, int layoutlen, int *retonclosep,
+ struct nfsclflayouthead *flhp, int *laystatp)
+{
+ uint32_t *tl;
+ int error = 0, deleg, newone, ret, acesize, limitby;
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ struct nfsclopen *op;
+ struct nfscldeleg *dp = NULL;
+ struct nfsnode *np;
+ struct nfsfh *nfhp;
+ struct nfsclsession *tsep;
+ nfsattrbit_t attrbits;
+ nfsv4stateid_t stateid;
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(dvp->v_mount);
+ np = VTONFS(dvp);
+ *laystatp = ENXIO;
+ *unlockedp = 0;
+ *nfhpp = NULL;
+ *dpp = NULL;
+ *attrflagp = 0;
+ *dattrflagp = 0;
+ if (namelen > NFS_MAXNAMLEN)
+ return (ENAMETOOLONG);
+ NFSCL_REQSTART(nd, NFSPROC_CREATELAYGET, dvp);
+ /*
+ * For V4, this is actually an Open op.
+ */
+ NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(owp->nfsow_seqid);
+ *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE |
+ NFSV4OPEN_ACCESSREAD);
+ *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE);
+ tsep = nfsmnt_mdssession(nmp);
+ *tl++ = tsep->nfsess_clientid.lval[0];
+ *tl = tsep->nfsess_clientid.lval[1];
+ nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OPEN_CREATE);
+ if ((fmode & O_EXCL) != 0) {
+ if (NFSHASSESSPERSIST(nmp)) {
+ /* Use GUARDED for persistent sessions. */
+ *tl = txdr_unsigned(NFSCREATE_GUARDED);
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ } else {
+ /* Otherwise, use EXCLUSIVE4_1. */
+ *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE41);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
+ *tl++ = cverf.lval[0];
+ *tl = cverf.lval[1];
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ }
+ } else {
+ *tl = txdr_unsigned(NFSCREATE_UNCHECKED);
+ nfscl_fillsattr(nd, vap, dvp, 0, 0);
+ }
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL);
+ nfsm_strtom(nd, name, namelen);
+ /* Get the new file's handle and attributes, plus save the FH. */
+ NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_SAVEFH);
+ *tl++ = txdr_unsigned(NFSV4OP_GETFH);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ NFSGETATTR_ATTRBIT(&attrbits);
+ nfsrv_putattrbit(nd, &attrbits);
+ /* Get the directory's post-op attributes. */
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_PUTFH);
+ nfsm_fhtom(nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
+ NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(NFSV4OP_GETATTR);
+ nfsrv_putattrbit(nd, &attrbits);
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = txdr_unsigned(NFSV4OP_RESTOREFH);
+ *tl = txdr_unsigned(NFSV4OP_LAYOUTGET);
+ nfsrv_setuplayoutget(nd, NFSLAYOUTIOMODE_RW, 0, UINT64_MAX, 0, stateidp,
+ layouttype, layoutlen, usecurstateid);
+ error = nfscl_request(nd, dvp, p, cred, dstuff);
+ if (error != 0)
+ return (error);
+ NFSCL_DEBUG(4, "nfsrpc_createlayout stat=%d err=%d\n", nd->nd_repstat,
+ error);
+ if (nd->nd_repstat != 0)
+ *laystatp = nd->nd_repstat;
+ NFSCL_INCRSEQID(owp->nfsow_seqid, nd);
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ NFSCL_DEBUG(4, "nfsrpc_createlayout open succeeded\n");
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ 6 * NFSX_UNSIGNED);
+ stateid.seqid = *tl++;
+ stateid.other[0] = *tl++;
+ stateid.other[1] = *tl++;
+ stateid.other[2] = *tl;
+ nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ deleg = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEREAD ||
+ deleg == NFSV4OPEN_DELEGATEWRITE) {
+ if (!(owp->nfsow_clp->nfsc_flags &
+ NFSCLFLAGS_FIRSTDELEG))
+ owp->nfsow_clp->nfsc_flags |=
+ (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG);
+ dp = malloc(sizeof(struct nfscldeleg) + NFSX_V4FHMAX,
+ M_NFSCLDELEG, M_WAITOK);
+ LIST_INIT(&dp->nfsdl_owner);
+ LIST_INIT(&dp->nfsdl_lock);
+ dp->nfsdl_clp = owp->nfsow_clp;
+ newnfs_copyincred(cred, &dp->nfsdl_cred);
+ nfscl_lockinit(&dp->nfsdl_rwlock);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ dp->nfsdl_stateid.seqid = *tl++;
+ dp->nfsdl_stateid.other[0] = *tl++;
+ dp->nfsdl_stateid.other[1] = *tl++;
+ dp->nfsdl_stateid.other[2] = *tl++;
+ ret = fxdr_unsigned(int, *tl);
+ if (deleg == NFSV4OPEN_DELEGATEWRITE) {
+ dp->nfsdl_flags = NFSCLDL_WRITE;
+ /*
+ * Indicates how much the file can grow.
+ */
+ NFSM_DISSECT(tl, u_int32_t *,
+ 3 * NFSX_UNSIGNED);
+ limitby = fxdr_unsigned(int, *tl++);
+ switch (limitby) {
+ case NFSV4OPEN_LIMITSIZE:
+ dp->nfsdl_sizelimit = fxdr_hyper(tl);
+ break;
+ case NFSV4OPEN_LIMITBLOCKS:
+ dp->nfsdl_sizelimit =
+ fxdr_unsigned(u_int64_t, *tl++);
+ dp->nfsdl_sizelimit *=
+ fxdr_unsigned(u_int64_t, *tl);
+ break;
+ default:
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ };
+ } else {
+ dp->nfsdl_flags = NFSCLDL_READ;
+ }
+ if (ret != 0)
+ dp->nfsdl_flags |= NFSCLDL_RECALL;
+ error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret,
+ &acesize, p);
+ if (error != 0)
+ goto nfsmout;
+ } else if (deleg != NFSV4OPEN_DELEGATENONE) {
+ error = NFSERR_BADXDR;
+ goto nfsmout;
+ }
+
+ /* Now, we should have the status for the SaveFH. */
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ if (*++tl == 0) {
+ NFSCL_DEBUG(4, "nfsrpc_createlayout SaveFH ok\n");
+ /*
+ * Now, process the GetFH and Getattr for the newly
+ * created file. nfscl_mtofh() will set
+ * ND_NOMOREDATA if these weren't successful.
+ */
+ error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
+ NFSCL_DEBUG(4, "aft nfscl_mtofh err=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ } else
+ nd->nd_flag |= ND_NOMOREDATA;
+ /* Now we have the PutFH and Getattr for the directory. */
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
+ if (*++tl != 0)
+ nd->nd_flag |= ND_NOMOREDATA;
+ else {
+ NFSM_DISSECT(tl, uint32_t *, 2 *
+ NFSX_UNSIGNED);
+ if (*++tl != 0)
+ nd->nd_flag |= ND_NOMOREDATA;
+ }
+ }
+ if ((nd->nd_flag & ND_NOMOREDATA) == 0) {
+ /* Load the directory attributes. */
+ error = nfsm_loadattr(nd, dnap);
+ NFSCL_DEBUG(4, "aft nfsm_loadattr err=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ *dattrflagp = 1;
+ if (dp != NULL && *attrflagp != 0) {
+ dp->nfsdl_change = nnap->na_filerev;
+ dp->nfsdl_modtime = nnap->na_mtime;
+ dp->nfsdl_flags |= NFSCLDL_MODTIMESET;
+ }
+ /*
+ * We can now complete the Open state.
+ */
+ nfhp = *nfhpp;
+ if (dp != NULL) {
+ dp->nfsdl_fhlen = nfhp->nfh_len;
+ NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh,
+ nfhp->nfh_len);
+ }
+ /*
+ * Get an Open structure that will be
+ * attached to the OpenOwner, acquired already.
+ */
+ error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len,
+ (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0,
+ cred, p, NULL, &op, &newone, NULL, 0);
+ if (error != 0)
+ goto nfsmout;
+ op->nfso_stateid = stateid;
+ newnfs_copyincred(cred, &op->nfso_cred);
+
+ nfscl_openrelease(nmp, op, error, newone);
+ *unlockedp = 1;
+
+ /* Now, handle the RestoreFH and LayoutGet. */
+ if (nd->nd_repstat == 0) {
+ NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED);
+ *laystatp = fxdr_unsigned(int, *(tl + 3));
+ if (*laystatp == 0) {
+ error = nfsrv_parselayoutget(nd,
+ stateidp, retonclosep, flhp);
+ if (error != 0)
+ *laystatp = error;
+ }
+ NFSCL_DEBUG(4, "aft nfsrv_parselayout err=%d\n",
+ error);
+ } else
+ nd->nd_repstat = 0;
+ }
+ }
+ if (nd->nd_repstat != 0 && error == 0)
+ error = nd->nd_repstat;
+ if (error == NFSERR_STALECLIENTID || error == NFSERR_BADSESSION)
+ nfscl_initiate_recovery(owp->nfsow_clp);
+nfsmout:
+ NFSCL_DEBUG(4, "eo nfsrpc_createlayout err=%d\n", error);
+ if (error == 0)
+ *dpp = dp;
+ else
+ free(dp, M_NFSCLDELEG);
+ mbuf_freem(nd->nd_mrep);
+ return (error);
+}
+
+/*
+ * Similar to nfsrpc_getopenlayout(), except that it used for the Create case.
+ */
+static int
+nfsrpc_getcreatelayout(vnode_t dvp, char *name, int namelen, struct vattr *vap,
+ nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp,
+ struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
+ struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
+ int *dattrflagp, void *dstuff, int *unlockedp)
+{
+ struct nfscllayout *lyp;
+ struct nfsclflayouthead flh;
+ struct nfsfh *nfhp;
+ struct nfsclsession *tsep;
+ struct nfsmount *nmp;
+ nfsv4stateid_t stateid;
+ int error, layoutlen, layouttype, retonclose, laystat;
+
+ error = 0;
+ nmp = VFSTONFS(dvp->v_mount);
+ if (NFSHASFLEXFILE(nmp))
+ layouttype = NFSLAYOUT_FLEXFILE;
+ else
+ layouttype = NFSLAYOUT_NFSV4_1_FILES;
+ LIST_INIT(&flh);
+ tsep = nfsmnt_mdssession(nmp);
+ layoutlen = tsep->nfsess_maxcache - (NFSX_STATEID + 3 * NFSX_UNSIGNED);
+ error = nfsrpc_createlayout(dvp, name, namelen, vap, cverf, fmode,
+ owp, dpp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp,
+ dstuff, unlockedp, &stateid, 1, layouttype, layoutlen, &retonclose,
+ &flh, &laystat);
+ NFSCL_DEBUG(4, "aft nfsrpc_createlayoutrpc laystat=%d err=%d\n",
+ laystat, error);
+ lyp = NULL;
+ if (laystat == 0) {
+ nfhp = *nfhpp;
+ laystat = nfsrpc_layoutgetres(nmp, dvp, nfhp->nfh_fh,
+ nfhp->nfh_len, &stateid, retonclose, NULL, &lyp, &flh,
+ layouttype, laystat, NULL, cred, p);
+ } else
+ laystat = nfsrpc_layoutgetres(nmp, dvp, NULL, 0, &stateid,
+ retonclose, NULL, &lyp, &flh, layouttype, laystat, NULL,
+ cred, p);
+ if (laystat == 0)
+ nfscl_rellayout(lyp, 0);
+ return (error);
+}
+
+/*
+ * Process the results of a layoutget() operation.
+ */
+static int
+nfsrpc_layoutgetres(struct nfsmount *nmp, vnode_t vp, uint8_t *newfhp,
+ int newfhlen, nfsv4stateid_t *stateidp, int retonclose, uint32_t *notifybit,
+ struct nfscllayout **lypp, struct nfsclflayouthead *flhp, int layouttype,
+ int laystat, int *islockedp, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclflayout *tflp;
+ struct nfscldevinfo *dip;
+ uint8_t *dev;
+ int i, mirrorcnt;
+
+ if (laystat == NFSERR_UNKNLAYOUTTYPE) {
+ NFSLOCKMNT(nmp);
+ if (!NFSHASFLEXFILE(nmp)) {
+ /* Switch to using Flex File Layout. */
+ nmp->nm_state |= NFSSTA_FLEXFILE;
+ } else if (layouttype == NFSLAYOUT_FLEXFILE) {
+ /* Disable pNFS. */
+ NFSCL_DEBUG(1, "disable PNFS\n");
+ nmp->nm_state &= ~(NFSSTA_PNFS | NFSSTA_FLEXFILE);
+ }
+ NFSUNLOCKMNT(nmp);
+ }
+ if (laystat == 0) {
+ NFSCL_DEBUG(4, "nfsrpc_layoutgetres at FOREACH\n");
+ LIST_FOREACH(tflp, flhp, nfsfl_list) {
+ if (layouttype == NFSLAYOUT_FLEXFILE)
+ mirrorcnt = tflp->nfsfl_mirrorcnt;
+ else
+ mirrorcnt = 1;
+ for (i = 0; i < mirrorcnt; i++) {
+ laystat = nfscl_adddevinfo(nmp, NULL, i, tflp);
+ NFSCL_DEBUG(4, "aft adddev=%d\n", laystat);
+ if (laystat != 0) {
+ if (layouttype == NFSLAYOUT_FLEXFILE)
+ dev = tflp->nfsfl_ffm[i].dev;
+ else
+ dev = tflp->nfsfl_dev;
+ laystat = nfsrpc_getdeviceinfo(nmp, dev,
+ layouttype, notifybit, &dip, cred,
+ p);
+ NFSCL_DEBUG(4, "aft nfsrpc_gdi=%d\n",
+ laystat);
+ if (laystat != 0)
+ goto out;
+ laystat = nfscl_adddevinfo(nmp, dip, i,
+ tflp);
+ if (laystat != 0)
+ printf("nfsrpc_layoutgetresout"
+ ": cannot add\n");
+ }
+ }
+ }
+ }
+out:
+ if (laystat == 0) {
+ /*
+ * nfscl_layout() always returns with the nfsly_lock
+ * set to a refcnt (shared lock).
+ * Passing in dvp is sufficient, since it is only used to
+ * get the fsid for the file system.
+ */
+ laystat = nfscl_layout(nmp, vp, newfhp, newfhlen, stateidp,
+ layouttype, retonclose, flhp, lypp, cred, p);
+ NFSCL_DEBUG(4, "nfsrpc_layoutgetres: aft nfscl_layout=%d\n",
+ laystat);
+ if (laystat == 0 && islockedp != NULL)
+ *islockedp = 1;
+ }
+ return (laystat);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clstate.c b/freebsd/sys/fs/nfsclient/nfs_clstate.c
new file mode 100644
index 0000000..0a2e4bc
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clstate.c
@@ -0,0 +1,5458 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * These functions implement the client side state handling for NFSv4.
+ * NFSv4 state handling:
+ * - A lockowner is used to determine lock contention, so it
+ * corresponds directly to a Posix pid. (1 to 1 mapping)
+ * - The correct granularity of an OpenOwner is not nearly so
+ * obvious. An OpenOwner does the following:
+ * - provides a serial sequencing of Open/Close/Lock-with-new-lockowner
+ * - is used to check for Open/Share contention (not applicable to
+ * this client, since all Opens are Deny_None)
+ * As such, I considered both extreme.
+ * 1 OpenOwner per ClientID - Simple to manage, but fully serializes
+ * all Open, Close and Lock (with a new lockowner) Ops.
+ * 1 OpenOwner for each Open - This one results in an OpenConfirm for
+ * every Open, for most servers.
+ * So, I chose to use the same mapping as I did for LockOwnwers.
+ * The main concern here is that you can end up with multiple Opens
+ * for the same File Handle, but on different OpenOwners (opens
+ * inherited from parents, grandparents...) and you do not know
+ * which of these the vnodeop close applies to. This is handled by
+ * delaying the Close Op(s) until all of the Opens have been closed.
+ * (It is not yet obvious if this is the correct granularity.)
+ * - How the code handles serialization:
+ * - For the ClientId, it uses an exclusive lock while getting its
+ * SetClientId and during recovery. Otherwise, it uses a shared
+ * lock via a reference count.
+ * - For the rest of the data structures, it uses an SMP mutex
+ * (once the nfs client is SMP safe) and doesn't sleep while
+ * manipulating the linked lists.
+ * - The serialization of Open/Close/Lock/LockU falls out in the
+ * "wash", since OpenOwners and LockOwners are both mapped from
+ * Posix pid. In other words, there is only one Posix pid using
+ * any given owner, so that owner is serialized. (If you change
+ * the granularity of the OpenOwner, then code must be added to
+ * serialize Ops on the OpenOwner.)
+ * - When to get rid of OpenOwners and LockOwners.
+ * - The function nfscl_cleanup_common() is executed after a process exits.
+ * It goes through the client list looking for all Open and Lock Owners.
+ * When one is found, it is marked "defunct" or in the case of
+ * an OpenOwner without any Opens, freed.
+ * The renew thread scans for defunct Owners and gets rid of them,
+ * if it can. The LockOwners will also be deleted when the
+ * associated Open is closed.
+ * - If the LockU or Close Op(s) fail during close in a way
+ * that could be recovered upon retry, they are relinked to the
+ * ClientId's defunct open list and retried by the renew thread
+ * until they succeed or an unmount/recovery occurs.
+ * (Since we are done with them, they do not need to be recovered.)
+ */
+
+#ifndef APPLEKEXT
+#include <fs/nfs/nfsport.h>
+
+/*
+ * Global variables
+ */
+extern struct nfsstatsv1 nfsstatsv1;
+extern struct nfsreqhead nfsd_reqq;
+extern u_int32_t newnfs_false, newnfs_true;
+extern int nfscl_debuglevel;
+extern int nfscl_enablecallb;
+extern int nfs_numnfscbd;
+NFSREQSPINLOCK;
+NFSCLSTATEMUTEX;
+int nfscl_inited = 0;
+struct nfsclhead nfsclhead; /* Head of clientid list */
+int nfscl_deleghighwater = NFSCLDELEGHIGHWATER;
+int nfscl_layouthighwater = NFSCLLAYOUTHIGHWATER;
+#endif /* !APPLEKEXT */
+
+static int nfscl_delegcnt = 0;
+static int nfscl_layoutcnt = 0;
+static int nfscl_getopen(struct nfsclownerhead *, u_int8_t *, int, u_int8_t *,
+ u_int8_t *, u_int32_t, struct nfscllockowner **, struct nfsclopen **);
+static void nfscl_clrelease(struct nfsclclient *);
+static void nfscl_cleanclient(struct nfsclclient *);
+static void nfscl_expireclient(struct nfsclclient *, struct nfsmount *,
+ struct ucred *, NFSPROC_T *);
+static int nfscl_expireopen(struct nfsclclient *, struct nfsclopen *,
+ struct nfsmount *, struct ucred *, NFSPROC_T *);
+static void nfscl_recover(struct nfsclclient *, struct ucred *, NFSPROC_T *);
+static void nfscl_insertlock(struct nfscllockowner *, struct nfscllock *,
+ struct nfscllock *, int);
+static int nfscl_updatelock(struct nfscllockowner *, struct nfscllock **,
+ struct nfscllock **, int);
+static void nfscl_delegreturnall(struct nfsclclient *, NFSPROC_T *);
+static u_int32_t nfscl_nextcbident(void);
+static mount_t nfscl_getmnt(int, uint8_t *, u_int32_t, struct nfsclclient **);
+static struct nfsclclient *nfscl_getclnt(u_int32_t);
+static struct nfsclclient *nfscl_getclntsess(uint8_t *);
+static struct nfscldeleg *nfscl_finddeleg(struct nfsclclient *, u_int8_t *,
+ int);
+static void nfscl_retoncloselayout(vnode_t, struct nfsclclient *, uint8_t *,
+ int, struct nfsclrecalllayout **);
+static void nfscl_reldevinfo_locked(struct nfscldevinfo *);
+static struct nfscllayout *nfscl_findlayout(struct nfsclclient *, u_int8_t *,
+ int);
+static struct nfscldevinfo *nfscl_finddevinfo(struct nfsclclient *, uint8_t *);
+static int nfscl_checkconflict(struct nfscllockownerhead *, struct nfscllock *,
+ u_int8_t *, struct nfscllock **);
+static void nfscl_freealllocks(struct nfscllockownerhead *, int);
+static int nfscl_localconflict(struct nfsclclient *, u_int8_t *, int,
+ struct nfscllock *, u_int8_t *, struct nfscldeleg *, struct nfscllock **);
+static void nfscl_newopen(struct nfsclclient *, struct nfscldeleg *,
+ struct nfsclowner **, struct nfsclowner **, struct nfsclopen **,
+ struct nfsclopen **, u_int8_t *, u_int8_t *, int, struct ucred *, int *);
+static int nfscl_moveopen(vnode_t , struct nfsclclient *,
+ struct nfsmount *, struct nfsclopen *, struct nfsclowner *,
+ struct nfscldeleg *, struct ucred *, NFSPROC_T *);
+static void nfscl_totalrecall(struct nfsclclient *);
+static int nfscl_relock(vnode_t , struct nfsclclient *, struct nfsmount *,
+ struct nfscllockowner *, struct nfscllock *, struct ucred *, NFSPROC_T *);
+static int nfscl_tryopen(struct nfsmount *, vnode_t , u_int8_t *, int,
+ u_int8_t *, int, u_int32_t, struct nfsclopen *, u_int8_t *, int,
+ struct nfscldeleg **, int, u_int32_t, struct ucred *, NFSPROC_T *);
+static int nfscl_trylock(struct nfsmount *, vnode_t , u_int8_t *,
+ int, struct nfscllockowner *, int, int, u_int64_t, u_int64_t, short,
+ struct ucred *, NFSPROC_T *);
+static int nfsrpc_reopen(struct nfsmount *, u_int8_t *, int, u_int32_t,
+ struct nfsclopen *, struct nfscldeleg **, struct ucred *, NFSPROC_T *);
+static void nfscl_freedeleg(struct nfscldeleghead *, struct nfscldeleg *);
+static int nfscl_errmap(struct nfsrv_descript *, u_int32_t);
+static void nfscl_cleanup_common(struct nfsclclient *, u_int8_t *);
+static int nfscl_recalldeleg(struct nfsclclient *, struct nfsmount *,
+ struct nfscldeleg *, vnode_t, struct ucred *, NFSPROC_T *, int);
+static void nfscl_freeopenowner(struct nfsclowner *, int);
+static void nfscl_cleandeleg(struct nfscldeleg *);
+static int nfscl_trydelegreturn(struct nfscldeleg *, struct ucred *,
+ struct nfsmount *, NFSPROC_T *);
+static void nfscl_emptylockowner(struct nfscllockowner *,
+ struct nfscllockownerfhhead *);
+static void nfscl_mergeflayouts(struct nfsclflayouthead *,
+ struct nfsclflayouthead *);
+static int nfscl_layoutrecall(int, struct nfscllayout *, uint32_t, uint64_t,
+ uint64_t, uint32_t, uint32_t, uint32_t, char *, struct nfsclrecalllayout *);
+static int nfscl_seq(uint32_t, uint32_t);
+static void nfscl_layoutreturn(struct nfsmount *, struct nfscllayout *,
+ struct ucred *, NFSPROC_T *);
+static void nfscl_dolayoutcommit(struct nfsmount *, struct nfscllayout *,
+ struct ucred *, NFSPROC_T *);
+
+static short nfscberr_null[] = {
+ 0,
+ 0,
+};
+
+static short nfscberr_getattr[] = {
+ NFSERR_RESOURCE,
+ NFSERR_BADHANDLE,
+ NFSERR_BADXDR,
+ NFSERR_RESOURCE,
+ NFSERR_SERVERFAULT,
+ 0,
+};
+
+static short nfscberr_recall[] = {
+ NFSERR_RESOURCE,
+ NFSERR_BADHANDLE,
+ NFSERR_BADSTATEID,
+ NFSERR_BADXDR,
+ NFSERR_RESOURCE,
+ NFSERR_SERVERFAULT,
+ 0,
+};
+
+static short *nfscl_cberrmap[] = {
+ nfscberr_null,
+ nfscberr_null,
+ nfscberr_null,
+ nfscberr_getattr,
+ nfscberr_recall
+};
+
+#define NETFAMILY(clp) \
+ (((clp)->nfsc_flags & NFSCLFLAGS_AFINET6) ? AF_INET6 : AF_INET)
+
+/*
+ * Called for an open operation.
+ * If the nfhp argument is NULL, just get an openowner.
+ */
+APPLESTATIC int
+nfscl_open(vnode_t vp, u_int8_t *nfhp, int fhlen, u_int32_t amode, int usedeleg,
+ struct ucred *cred, NFSPROC_T *p, struct nfsclowner **owpp,
+ struct nfsclopen **opp, int *newonep, int *retp, int lockit)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op = NULL, *nop = NULL;
+ struct nfscldeleg *dp;
+ struct nfsclownerhead *ohp;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+ int ret;
+
+ if (newonep != NULL)
+ *newonep = 0;
+ if (opp != NULL)
+ *opp = NULL;
+ if (owpp != NULL)
+ *owpp = NULL;
+
+ /*
+ * Might need one or both of these, so MALLOC them now, to
+ * avoid a tsleep() in MALLOC later.
+ */
+ nowp = malloc(sizeof (struct nfsclowner),
+ M_NFSCLOWNER, M_WAITOK);
+ if (nfhp != NULL)
+ nop = malloc(sizeof (struct nfsclopen) +
+ fhlen - 1, M_NFSCLOPEN, M_WAITOK);
+ ret = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp);
+ if (ret != 0) {
+ free(nowp, M_NFSCLOWNER);
+ if (nop != NULL)
+ free(nop, M_NFSCLOPEN);
+ return (ret);
+ }
+
+ /*
+ * Get the Open iff it already exists.
+ * If none found, add the new one or return error, depending upon
+ * "create".
+ */
+ NFSLOCKCLSTATE();
+ dp = NULL;
+ /* First check the delegation list */
+ if (nfhp != NULL && usedeleg) {
+ LIST_FOREACH(dp, NFSCLDELEGHASH(clp, nfhp, fhlen), nfsdl_hash) {
+ if (dp->nfsdl_fhlen == fhlen &&
+ !NFSBCMP(nfhp, dp->nfsdl_fh, fhlen)) {
+ if (!(amode & NFSV4OPEN_ACCESSWRITE) ||
+ (dp->nfsdl_flags & NFSCLDL_WRITE))
+ break;
+ dp = NULL;
+ break;
+ }
+ }
+ }
+
+ if (dp != NULL) {
+ nfscl_filllockowner(p->td_proc, own, F_POSIX);
+ ohp = &dp->nfsdl_owner;
+ } else {
+ /* For NFSv4.1 and this option, use a single open_owner. */
+ if (NFSHASONEOPENOWN(VFSTONFS(vnode_mount(vp))))
+ nfscl_filllockowner(NULL, own, F_POSIX);
+ else
+ nfscl_filllockowner(p->td_proc, own, F_POSIX);
+ ohp = &clp->nfsc_owner;
+ }
+ /* Now, search for an openowner */
+ LIST_FOREACH(owp, ohp, nfsow_list) {
+ if (!NFSBCMP(owp->nfsow_owner, own, NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+
+ /*
+ * Create a new open, as required.
+ */
+ nfscl_newopen(clp, dp, &owp, &nowp, &op, &nop, own, nfhp, fhlen,
+ cred, newonep);
+
+ /*
+ * Now, check the mode on the open and return the appropriate
+ * value.
+ */
+ if (retp != NULL) {
+ if (nfhp != NULL && dp != NULL && nop == NULL)
+ /* new local open on delegation */
+ *retp = NFSCLOPEN_SETCRED;
+ else
+ *retp = NFSCLOPEN_OK;
+ }
+ if (op != NULL && (amode & ~(op->nfso_mode))) {
+ op->nfso_mode |= amode;
+ if (retp != NULL && dp == NULL)
+ *retp = NFSCLOPEN_DOOPEN;
+ }
+
+ /*
+ * Serialize modifications to the open owner for multiple threads
+ * within the same process using a read/write sleep lock.
+ * For NFSv4.1 and a single OpenOwner, allow concurrent open operations
+ * by acquiring a shared lock. The close operations still use an
+ * exclusive lock for this case.
+ */
+ if (lockit != 0) {
+ if (NFSHASONEOPENOWN(VFSTONFS(vnode_mount(vp)))) {
+ /*
+ * Get a shared lock on the OpenOwner, but first
+ * wait for any pending exclusive lock, so that the
+ * exclusive locker gets priority.
+ */
+ nfsv4_lock(&owp->nfsow_rwlock, 0, NULL,
+ NFSCLSTATEMUTEXPTR, NULL);
+ nfsv4_getref(&owp->nfsow_rwlock, NULL,
+ NFSCLSTATEMUTEXPTR, NULL);
+ } else
+ nfscl_lockexcl(&owp->nfsow_rwlock, NFSCLSTATEMUTEXPTR);
+ }
+ NFSUNLOCKCLSTATE();
+ if (nowp != NULL)
+ free(nowp, M_NFSCLOWNER);
+ if (nop != NULL)
+ free(nop, M_NFSCLOPEN);
+ if (owpp != NULL)
+ *owpp = owp;
+ if (opp != NULL)
+ *opp = op;
+ return (0);
+}
+
+/*
+ * Create a new open, as required.
+ */
+static void
+nfscl_newopen(struct nfsclclient *clp, struct nfscldeleg *dp,
+ struct nfsclowner **owpp, struct nfsclowner **nowpp, struct nfsclopen **opp,
+ struct nfsclopen **nopp, u_int8_t *own, u_int8_t *fhp, int fhlen,
+ struct ucred *cred, int *newonep)
+{
+ struct nfsclowner *owp = *owpp, *nowp;
+ struct nfsclopen *op, *nop;
+
+ if (nowpp != NULL)
+ nowp = *nowpp;
+ else
+ nowp = NULL;
+ if (nopp != NULL)
+ nop = *nopp;
+ else
+ nop = NULL;
+ if (owp == NULL && nowp != NULL) {
+ NFSBCOPY(own, nowp->nfsow_owner, NFSV4CL_LOCKNAMELEN);
+ LIST_INIT(&nowp->nfsow_open);
+ nowp->nfsow_clp = clp;
+ nowp->nfsow_seqid = 0;
+ nowp->nfsow_defunct = 0;
+ nfscl_lockinit(&nowp->nfsow_rwlock);
+ if (dp != NULL) {
+ nfsstatsv1.cllocalopenowners++;
+ LIST_INSERT_HEAD(&dp->nfsdl_owner, nowp, nfsow_list);
+ } else {
+ nfsstatsv1.clopenowners++;
+ LIST_INSERT_HEAD(&clp->nfsc_owner, nowp, nfsow_list);
+ }
+ owp = *owpp = nowp;
+ *nowpp = NULL;
+ if (newonep != NULL)
+ *newonep = 1;
+ }
+
+ /* If an fhp has been specified, create an Open as well. */
+ if (fhp != NULL) {
+ /* and look for the correct open, based upon FH */
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == fhlen &&
+ !NFSBCMP(op->nfso_fh, fhp, fhlen))
+ break;
+ }
+ if (op == NULL && nop != NULL) {
+ nop->nfso_own = owp;
+ nop->nfso_mode = 0;
+ nop->nfso_opencnt = 0;
+ nop->nfso_posixlock = 1;
+ nop->nfso_fhlen = fhlen;
+ NFSBCOPY(fhp, nop->nfso_fh, fhlen);
+ LIST_INIT(&nop->nfso_lock);
+ nop->nfso_stateid.seqid = 0;
+ nop->nfso_stateid.other[0] = 0;
+ nop->nfso_stateid.other[1] = 0;
+ nop->nfso_stateid.other[2] = 0;
+ KASSERT(cred != NULL, ("%s: cred NULL\n", __func__));
+ newnfs_copyincred(cred, &nop->nfso_cred);
+ if (dp != NULL) {
+ TAILQ_REMOVE(&clp->nfsc_deleg, dp, nfsdl_list);
+ TAILQ_INSERT_HEAD(&clp->nfsc_deleg, dp,
+ nfsdl_list);
+ dp->nfsdl_timestamp = NFSD_MONOSEC + 120;
+ nfsstatsv1.cllocalopens++;
+ } else {
+ nfsstatsv1.clopens++;
+ }
+ LIST_INSERT_HEAD(&owp->nfsow_open, nop, nfso_list);
+ *opp = nop;
+ *nopp = NULL;
+ if (newonep != NULL)
+ *newonep = 1;
+ } else {
+ *opp = op;
+ }
+ }
+}
+
+/*
+ * Called to find/add a delegation to a client.
+ */
+APPLESTATIC int
+nfscl_deleg(mount_t mp, struct nfsclclient *clp, u_int8_t *nfhp,
+ int fhlen, struct ucred *cred, NFSPROC_T *p, struct nfscldeleg **dpp)
+{
+ struct nfscldeleg *dp = *dpp, *tdp;
+
+ /*
+ * First, if we have received a Read delegation for a file on a
+ * read/write file system, just return it, because they aren't
+ * useful, imho.
+ */
+ if (mp != NULL && dp != NULL && !NFSMNT_RDONLY(mp) &&
+ (dp->nfsdl_flags & NFSCLDL_READ)) {
+ (void) nfscl_trydelegreturn(dp, cred, VFSTONFS(mp), p);
+ free(dp, M_NFSCLDELEG);
+ *dpp = NULL;
+ return (0);
+ }
+
+ /* Look for the correct deleg, based upon FH */
+ NFSLOCKCLSTATE();
+ tdp = nfscl_finddeleg(clp, nfhp, fhlen);
+ if (tdp == NULL) {
+ if (dp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (NFSERR_BADSTATEID);
+ }
+ *dpp = NULL;
+ TAILQ_INSERT_HEAD(&clp->nfsc_deleg, dp, nfsdl_list);
+ LIST_INSERT_HEAD(NFSCLDELEGHASH(clp, nfhp, fhlen), dp,
+ nfsdl_hash);
+ dp->nfsdl_timestamp = NFSD_MONOSEC + 120;
+ nfsstatsv1.cldelegates++;
+ nfscl_delegcnt++;
+ } else {
+ /*
+ * Delegation already exists, what do we do if a new one??
+ */
+ if (dp != NULL) {
+ printf("Deleg already exists!\n");
+ free(dp, M_NFSCLDELEG);
+ *dpp = NULL;
+ } else {
+ *dpp = tdp;
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ return (0);
+}
+
+/*
+ * Find a delegation for this file handle. Return NULL upon failure.
+ */
+static struct nfscldeleg *
+nfscl_finddeleg(struct nfsclclient *clp, u_int8_t *fhp, int fhlen)
+{
+ struct nfscldeleg *dp;
+
+ LIST_FOREACH(dp, NFSCLDELEGHASH(clp, fhp, fhlen), nfsdl_hash) {
+ if (dp->nfsdl_fhlen == fhlen &&
+ !NFSBCMP(dp->nfsdl_fh, fhp, fhlen))
+ break;
+ }
+ return (dp);
+}
+
+/*
+ * Get a stateid for an I/O operation. First, look for an open and iff
+ * found, return either a lockowner stateid or the open stateid.
+ * If no Open is found, just return error and the special stateid of all zeros.
+ */
+APPLESTATIC int
+nfscl_getstateid(vnode_t vp, u_int8_t *nfhp, int fhlen, u_int32_t mode,
+ int fords, struct ucred *cred, NFSPROC_T *p, nfsv4stateid_t *stateidp,
+ void **lckpp)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp;
+ struct nfsclopen *op = NULL, *top;
+ struct nfscllockowner *lp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+ int error, done;
+
+ *lckpp = NULL;
+ /*
+ * Initially, just set the special stateid of all zeros.
+ * (Don't do this for a DS, since the special stateid can't be used.)
+ */
+ if (fords == 0) {
+ stateidp->seqid = 0;
+ stateidp->other[0] = 0;
+ stateidp->other[1] = 0;
+ stateidp->other[2] = 0;
+ }
+ if (vnode_vtype(vp) != VREG)
+ return (EISDIR);
+ np = VTONFS(vp);
+ nmp = VFSTONFS(vnode_mount(vp));
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (EACCES);
+ }
+
+ /*
+ * Wait for recovery to complete.
+ */
+ while ((clp->nfsc_flags & NFSCLFLAGS_RECVRINPROG))
+ (void) nfsmsleep(&clp->nfsc_flags, NFSCLSTATEMUTEXPTR,
+ PZERO, "nfsrecvr", NULL);
+
+ /*
+ * First, look for a delegation.
+ */
+ LIST_FOREACH(dp, NFSCLDELEGHASH(clp, nfhp, fhlen), nfsdl_hash) {
+ if (dp->nfsdl_fhlen == fhlen &&
+ !NFSBCMP(nfhp, dp->nfsdl_fh, fhlen)) {
+ if (!(mode & NFSV4OPEN_ACCESSWRITE) ||
+ (dp->nfsdl_flags & NFSCLDL_WRITE)) {
+ stateidp->seqid = dp->nfsdl_stateid.seqid;
+ stateidp->other[0] = dp->nfsdl_stateid.other[0];
+ stateidp->other[1] = dp->nfsdl_stateid.other[1];
+ stateidp->other[2] = dp->nfsdl_stateid.other[2];
+ if (!(np->n_flag & NDELEGRECALL)) {
+ TAILQ_REMOVE(&clp->nfsc_deleg, dp,
+ nfsdl_list);
+ TAILQ_INSERT_HEAD(&clp->nfsc_deleg, dp,
+ nfsdl_list);
+ dp->nfsdl_timestamp = NFSD_MONOSEC +
+ 120;
+ dp->nfsdl_rwlock.nfslock_usecnt++;
+ *lckpp = (void *)&dp->nfsdl_rwlock;
+ }
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ break;
+ }
+ }
+
+ if (p != NULL) {
+ /*
+ * If p != NULL, we want to search the parentage tree
+ * for a matching OpenOwner and use that.
+ */
+ if (NFSHASONEOPENOWN(VFSTONFS(vnode_mount(vp))))
+ nfscl_filllockowner(NULL, own, F_POSIX);
+ else
+ nfscl_filllockowner(p->td_proc, own, F_POSIX);
+ lp = NULL;
+ error = nfscl_getopen(&clp->nfsc_owner, nfhp, fhlen, own, own,
+ mode, &lp, &op);
+ if (error == 0 && lp != NULL && fords == 0) {
+ /* Don't return a lock stateid for a DS. */
+ stateidp->seqid =
+ lp->nfsl_stateid.seqid;
+ stateidp->other[0] =
+ lp->nfsl_stateid.other[0];
+ stateidp->other[1] =
+ lp->nfsl_stateid.other[1];
+ stateidp->other[2] =
+ lp->nfsl_stateid.other[2];
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ }
+ if (op == NULL) {
+ /* If not found, just look for any OpenOwner that will work. */
+ top = NULL;
+ done = 0;
+ owp = LIST_FIRST(&clp->nfsc_owner);
+ while (!done && owp != NULL) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == fhlen &&
+ !NFSBCMP(op->nfso_fh, nfhp, fhlen)) {
+ if (top == NULL && (op->nfso_mode &
+ NFSV4OPEN_ACCESSWRITE) != 0 &&
+ (mode & NFSV4OPEN_ACCESSREAD) != 0)
+ top = op;
+ if ((mode & op->nfso_mode) == mode) {
+ done = 1;
+ break;
+ }
+ }
+ }
+ if (!done)
+ owp = LIST_NEXT(owp, nfsow_list);
+ }
+ if (!done) {
+ NFSCL_DEBUG(2, "openmode top=%p\n", top);
+ if (top == NULL || NFSHASOPENMODE(nmp)) {
+ NFSUNLOCKCLSTATE();
+ return (ENOENT);
+ } else
+ op = top;
+ }
+ /*
+ * For read aheads or write behinds, use the open cred.
+ * A read ahead or write behind is indicated by p == NULL.
+ */
+ if (p == NULL)
+ newnfs_copycred(&op->nfso_cred, cred);
+ }
+
+ /*
+ * No lock stateid, so return the open stateid.
+ */
+ stateidp->seqid = op->nfso_stateid.seqid;
+ stateidp->other[0] = op->nfso_stateid.other[0];
+ stateidp->other[1] = op->nfso_stateid.other[1];
+ stateidp->other[2] = op->nfso_stateid.other[2];
+ NFSUNLOCKCLSTATE();
+ return (0);
+}
+
+/*
+ * Search for a matching file, mode and, optionally, lockowner.
+ */
+static int
+nfscl_getopen(struct nfsclownerhead *ohp, u_int8_t *nfhp, int fhlen,
+ u_int8_t *openown, u_int8_t *lockown, u_int32_t mode,
+ struct nfscllockowner **lpp, struct nfsclopen **opp)
+{
+ struct nfsclowner *owp;
+ struct nfsclopen *op, *rop, *rop2;
+ struct nfscllockowner *lp;
+ int keep_looping;
+
+ if (lpp != NULL)
+ *lpp = NULL;
+ /*
+ * rop will be set to the open to be returned. There are three
+ * variants of this, all for an open of the correct file:
+ * 1 - A match of lockown.
+ * 2 - A match of the openown, when no lockown match exists.
+ * 3 - A match for any open, if no openown or lockown match exists.
+ * Looking for #2 over #3 probably isn't necessary, but since
+ * RFC3530 is vague w.r.t. the relationship between openowners and
+ * lockowners, I think this is the safer way to go.
+ */
+ rop = NULL;
+ rop2 = NULL;
+ keep_looping = 1;
+ /* Search the client list */
+ owp = LIST_FIRST(ohp);
+ while (owp != NULL && keep_looping != 0) {
+ /* and look for the correct open */
+ op = LIST_FIRST(&owp->nfsow_open);
+ while (op != NULL && keep_looping != 0) {
+ if (op->nfso_fhlen == fhlen &&
+ !NFSBCMP(op->nfso_fh, nfhp, fhlen)
+ && (op->nfso_mode & mode) == mode) {
+ if (lpp != NULL) {
+ /* Now look for a matching lockowner. */
+ LIST_FOREACH(lp, &op->nfso_lock,
+ nfsl_list) {
+ if (!NFSBCMP(lp->nfsl_owner,
+ lockown,
+ NFSV4CL_LOCKNAMELEN)) {
+ *lpp = lp;
+ rop = op;
+ keep_looping = 0;
+ break;
+ }
+ }
+ }
+ if (rop == NULL && !NFSBCMP(owp->nfsow_owner,
+ openown, NFSV4CL_LOCKNAMELEN)) {
+ rop = op;
+ if (lpp == NULL)
+ keep_looping = 0;
+ }
+ if (rop2 == NULL)
+ rop2 = op;
+ }
+ op = LIST_NEXT(op, nfso_list);
+ }
+ owp = LIST_NEXT(owp, nfsow_list);
+ }
+ if (rop == NULL)
+ rop = rop2;
+ if (rop == NULL)
+ return (EBADF);
+ *opp = rop;
+ return (0);
+}
+
+/*
+ * Release use of an open owner. Called when open operations are done
+ * with the open owner.
+ */
+APPLESTATIC void
+nfscl_ownerrelease(struct nfsmount *nmp, struct nfsclowner *owp,
+ __unused int error, __unused int candelete, int unlocked)
+{
+
+ if (owp == NULL)
+ return;
+ NFSLOCKCLSTATE();
+ if (unlocked == 0) {
+ if (NFSHASONEOPENOWN(nmp))
+ nfsv4_relref(&owp->nfsow_rwlock);
+ else
+ nfscl_lockunlock(&owp->nfsow_rwlock);
+ }
+ nfscl_clrelease(owp->nfsow_clp);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Release use of an open structure under an open owner.
+ */
+APPLESTATIC void
+nfscl_openrelease(struct nfsmount *nmp, struct nfsclopen *op, int error,
+ int candelete)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp;
+
+ if (op == NULL)
+ return;
+ NFSLOCKCLSTATE();
+ owp = op->nfso_own;
+ if (NFSHASONEOPENOWN(nmp))
+ nfsv4_relref(&owp->nfsow_rwlock);
+ else
+ nfscl_lockunlock(&owp->nfsow_rwlock);
+ clp = owp->nfsow_clp;
+ if (error && candelete && op->nfso_opencnt == 0)
+ nfscl_freeopen(op, 0);
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Called to get a clientid structure. It will optionally lock the
+ * client data structures to do the SetClientId/SetClientId_confirm,
+ * but will release that lock and return the clientid with a reference
+ * count on it.
+ * If the "cred" argument is NULL, a new clientid should not be created.
+ * If the "p" argument is NULL, a SetClientID/SetClientIDConfirm cannot
+ * be done.
+ * The start_renewthread argument tells nfscl_getcl() to start a renew
+ * thread if this creates a new clp.
+ * It always clpp with a reference count on it, unless returning an error.
+ */
+APPLESTATIC int
+nfscl_getcl(struct mount *mp, struct ucred *cred, NFSPROC_T *p,
+ int start_renewthread, struct nfsclclient **clpp)
+{
+ struct nfsclclient *clp;
+ struct nfsclclient *newclp = NULL;
+ struct nfsmount *nmp;
+ char uuid[HOSTUUIDLEN];
+ int igotlock = 0, error, trystalecnt, clidinusedelay, i;
+ u_int16_t idlen = 0;
+
+ nmp = VFSTONFS(mp);
+ if (cred != NULL) {
+ getcredhostuuid(cred, uuid, sizeof uuid);
+ idlen = strlen(uuid);
+ if (idlen > 0)
+ idlen += sizeof (u_int64_t);
+ else
+ idlen += sizeof (u_int64_t) + 16; /* 16 random bytes */
+ newclp = malloc(
+ sizeof (struct nfsclclient) + idlen - 1, M_NFSCLCLIENT,
+ M_WAITOK | M_ZERO);
+ }
+ NFSLOCKCLSTATE();
+ /*
+ * If a forced dismount is already in progress, don't
+ * allocate a new clientid and get out now. For the case where
+ * clp != NULL, this is a harmless optimization.
+ */
+ if (NFSCL_FORCEDISM(mp)) {
+ NFSUNLOCKCLSTATE();
+ if (newclp != NULL)
+ free(newclp, M_NFSCLCLIENT);
+ return (EBADF);
+ }
+ clp = nmp->nm_clp;
+ if (clp == NULL) {
+ if (newclp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (EACCES);
+ }
+ clp = newclp;
+ clp->nfsc_idlen = idlen;
+ LIST_INIT(&clp->nfsc_owner);
+ TAILQ_INIT(&clp->nfsc_deleg);
+ TAILQ_INIT(&clp->nfsc_layout);
+ LIST_INIT(&clp->nfsc_devinfo);
+ for (i = 0; i < NFSCLDELEGHASHSIZE; i++)
+ LIST_INIT(&clp->nfsc_deleghash[i]);
+ for (i = 0; i < NFSCLLAYOUTHASHSIZE; i++)
+ LIST_INIT(&clp->nfsc_layouthash[i]);
+ clp->nfsc_flags = NFSCLFLAGS_INITED;
+ clp->nfsc_clientidrev = 1;
+ clp->nfsc_cbident = nfscl_nextcbident();
+ nfscl_fillclid(nmp->nm_clval, uuid, clp->nfsc_id,
+ clp->nfsc_idlen);
+ LIST_INSERT_HEAD(&nfsclhead, clp, nfsc_list);
+ nmp->nm_clp = clp;
+ clp->nfsc_nmp = nmp;
+ NFSUNLOCKCLSTATE();
+ if (start_renewthread != 0)
+ nfscl_start_renewthread(clp);
+ } else {
+ NFSUNLOCKCLSTATE();
+ if (newclp != NULL)
+ free(newclp, M_NFSCLCLIENT);
+ }
+ NFSLOCKCLSTATE();
+ while ((clp->nfsc_flags & NFSCLFLAGS_HASCLIENTID) == 0 && !igotlock &&
+ !NFSCL_FORCEDISM(mp))
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1, NULL,
+ NFSCLSTATEMUTEXPTR, mp);
+ if (igotlock == 0) {
+ /*
+ * Call nfsv4_lock() with "iwantlock == 0" so that it will
+ * wait for a pending exclusive lock request. This gives the
+ * exclusive lock request priority over this shared lock
+ * request.
+ * An exclusive lock on nfsc_lock is used mainly for server
+ * crash recoveries.
+ */
+ nfsv4_lock(&clp->nfsc_lock, 0, NULL, NFSCLSTATEMUTEXPTR, mp);
+ nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
+ }
+ if (igotlock == 0 && NFSCL_FORCEDISM(mp)) {
+ /*
+ * Both nfsv4_lock() and nfsv4_getref() know to check
+ * for NFSCL_FORCEDISM() and return without sleeping to
+ * wait for the exclusive lock to be released, since it
+ * might be held by nfscl_umount() and we need to get out
+ * now for that case and not wait until nfscl_umount()
+ * releases it.
+ */
+ NFSUNLOCKCLSTATE();
+ return (EBADF);
+ }
+ NFSUNLOCKCLSTATE();
+
+ /*
+ * If it needs a clientid, do the setclientid now.
+ */
+ if ((clp->nfsc_flags & NFSCLFLAGS_HASCLIENTID) == 0) {
+ if (!igotlock)
+ panic("nfscl_clget");
+ if (p == NULL || cred == NULL) {
+ NFSLOCKCLSTATE();
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ return (EACCES);
+ }
+ /*
+ * If RFC3530 Sec. 14.2.33 is taken literally,
+ * NFSERR_CLIDINUSE will be returned persistently for the
+ * case where a new mount of the same file system is using
+ * a different principal. In practice, NFSERR_CLIDINUSE is
+ * only returned when there is outstanding unexpired state
+ * on the clientid. As such, try for twice the lease
+ * interval, if we know what that is. Otherwise, make a
+ * wild ass guess.
+ * The case of returning NFSERR_STALECLIENTID is far less
+ * likely, but might occur if there is a significant delay
+ * between doing the SetClientID and SetClientIDConfirm Ops,
+ * such that the server throws away the clientid before
+ * receiving the SetClientIDConfirm.
+ */
+ if (clp->nfsc_renew > 0)
+ clidinusedelay = NFSCL_LEASE(clp->nfsc_renew) * 2;
+ else
+ clidinusedelay = 120;
+ trystalecnt = 3;
+ do {
+ error = nfsrpc_setclient(nmp, clp, 0, cred, p);
+ if (error == NFSERR_STALECLIENTID ||
+ error == NFSERR_STALEDONTRECOVER ||
+ error == NFSERR_BADSESSION ||
+ error == NFSERR_CLIDINUSE) {
+ (void) nfs_catnap(PZERO, error, "nfs_setcl");
+ }
+ } while (((error == NFSERR_STALECLIENTID ||
+ error == NFSERR_BADSESSION ||
+ error == NFSERR_STALEDONTRECOVER) && --trystalecnt > 0) ||
+ (error == NFSERR_CLIDINUSE && --clidinusedelay > 0));
+ if (error) {
+ NFSLOCKCLSTATE();
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ return (error);
+ }
+ clp->nfsc_flags |= NFSCLFLAGS_HASCLIENTID;
+ }
+ if (igotlock) {
+ NFSLOCKCLSTATE();
+ nfsv4_unlock(&clp->nfsc_lock, 1);
+ NFSUNLOCKCLSTATE();
+ }
+
+ *clpp = clp;
+ return (0);
+}
+
+/*
+ * Get a reference to a clientid and return it, if valid.
+ */
+APPLESTATIC struct nfsclclient *
+nfscl_findcl(struct nfsmount *nmp)
+{
+ struct nfsclclient *clp;
+
+ clp = nmp->nm_clp;
+ if (clp == NULL || !(clp->nfsc_flags & NFSCLFLAGS_HASCLIENTID))
+ return (NULL);
+ return (clp);
+}
+
+/*
+ * Release the clientid structure. It may be locked or reference counted.
+ */
+static void
+nfscl_clrelease(struct nfsclclient *clp)
+{
+
+ if (clp->nfsc_lock.nfslock_lock & NFSV4LOCK_LOCK)
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ else
+ nfsv4_relref(&clp->nfsc_lock);
+}
+
+/*
+ * External call for nfscl_clrelease.
+ */
+APPLESTATIC void
+nfscl_clientrelease(struct nfsclclient *clp)
+{
+
+ NFSLOCKCLSTATE();
+ if (clp->nfsc_lock.nfslock_lock & NFSV4LOCK_LOCK)
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ else
+ nfsv4_relref(&clp->nfsc_lock);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Called when wanting to lock a byte region.
+ */
+APPLESTATIC int
+nfscl_getbytelock(vnode_t vp, u_int64_t off, u_int64_t len,
+ short type, struct ucred *cred, NFSPROC_T *p, struct nfsclclient *rclp,
+ int recovery, void *id, int flags, u_int8_t *rownp, u_int8_t *ropenownp,
+ struct nfscllockowner **lpp, int *newonep, int *donelocallyp)
+{
+ struct nfscllockowner *lp;
+ struct nfsclopen *op;
+ struct nfsclclient *clp;
+ struct nfscllockowner *nlp;
+ struct nfscllock *nlop, *otherlop;
+ struct nfscldeleg *dp = NULL, *ldp = NULL;
+ struct nfscllockownerhead *lhp = NULL;
+ struct nfsnode *np;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN], *ownp, openown[NFSV4CL_LOCKNAMELEN];
+ u_int8_t *openownp;
+ int error = 0, ret, donelocally = 0;
+ u_int32_t mode;
+
+ /* For Lock Ops, the open mode doesn't matter, so use 0 to match any. */
+ mode = 0;
+ np = VTONFS(vp);
+ *lpp = NULL;
+ lp = NULL;
+ *newonep = 0;
+ *donelocallyp = 0;
+
+ /*
+ * Might need these, so MALLOC them now, to
+ * avoid a tsleep() in MALLOC later.
+ */
+ nlp = malloc(
+ sizeof (struct nfscllockowner), M_NFSCLLOCKOWNER, M_WAITOK);
+ otherlop = malloc(
+ sizeof (struct nfscllock), M_NFSCLLOCK, M_WAITOK);
+ nlop = malloc(
+ sizeof (struct nfscllock), M_NFSCLLOCK, M_WAITOK);
+ nlop->nfslo_type = type;
+ nlop->nfslo_first = off;
+ if (len == NFS64BITSSET) {
+ nlop->nfslo_end = NFS64BITSSET;
+ } else {
+ nlop->nfslo_end = off + len;
+ if (nlop->nfslo_end <= nlop->nfslo_first)
+ error = NFSERR_INVAL;
+ }
+
+ if (!error) {
+ if (recovery)
+ clp = rclp;
+ else
+ error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp);
+ }
+ if (error) {
+ free(nlp, M_NFSCLLOCKOWNER);
+ free(otherlop, M_NFSCLLOCK);
+ free(nlop, M_NFSCLLOCK);
+ return (error);
+ }
+
+ op = NULL;
+ if (recovery) {
+ ownp = rownp;
+ openownp = ropenownp;
+ } else {
+ nfscl_filllockowner(id, own, flags);
+ ownp = own;
+ if (NFSHASONEOPENOWN(VFSTONFS(vnode_mount(vp))))
+ nfscl_filllockowner(NULL, openown, F_POSIX);
+ else
+ nfscl_filllockowner(p->td_proc, openown, F_POSIX);
+ openownp = openown;
+ }
+ if (!recovery) {
+ NFSLOCKCLSTATE();
+ /*
+ * First, search for a delegation. If one exists for this file,
+ * the lock can be done locally against it, so long as there
+ * isn't a local lock conflict.
+ */
+ ldp = dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len);
+ /* Just sanity check for correct type of delegation */
+ if (dp != NULL && ((dp->nfsdl_flags &
+ (NFSCLDL_RECALL | NFSCLDL_DELEGRET)) != 0 ||
+ (type == F_WRLCK &&
+ (dp->nfsdl_flags & NFSCLDL_WRITE) == 0)))
+ dp = NULL;
+ }
+ if (dp != NULL) {
+ /* Now, find an open and maybe a lockowner. */
+ ret = nfscl_getopen(&dp->nfsdl_owner, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, openownp, ownp, mode, NULL, &op);
+ if (ret)
+ ret = nfscl_getopen(&clp->nfsc_owner,
+ np->n_fhp->nfh_fh, np->n_fhp->nfh_len, openownp,
+ ownp, mode, NULL, &op);
+ if (!ret) {
+ lhp = &dp->nfsdl_lock;
+ TAILQ_REMOVE(&clp->nfsc_deleg, dp, nfsdl_list);
+ TAILQ_INSERT_HEAD(&clp->nfsc_deleg, dp, nfsdl_list);
+ dp->nfsdl_timestamp = NFSD_MONOSEC + 120;
+ donelocally = 1;
+ } else {
+ dp = NULL;
+ }
+ }
+ if (!donelocally) {
+ /*
+ * Get the related Open and maybe lockowner.
+ */
+ error = nfscl_getopen(&clp->nfsc_owner,
+ np->n_fhp->nfh_fh, np->n_fhp->nfh_len, openownp,
+ ownp, mode, &lp, &op);
+ if (!error)
+ lhp = &op->nfso_lock;
+ }
+ if (!error && !recovery)
+ error = nfscl_localconflict(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len, nlop, ownp, ldp, NULL);
+ if (error) {
+ if (!recovery) {
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+ }
+ free(nlp, M_NFSCLLOCKOWNER);
+ free(otherlop, M_NFSCLLOCK);
+ free(nlop, M_NFSCLLOCK);
+ return (error);
+ }
+
+ /*
+ * Ok, see if a lockowner exists and create one, as required.
+ */
+ if (lp == NULL)
+ LIST_FOREACH(lp, lhp, nfsl_list) {
+ if (!NFSBCMP(lp->nfsl_owner, ownp, NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+ if (lp == NULL) {
+ NFSBCOPY(ownp, nlp->nfsl_owner, NFSV4CL_LOCKNAMELEN);
+ if (recovery)
+ NFSBCOPY(ropenownp, nlp->nfsl_openowner,
+ NFSV4CL_LOCKNAMELEN);
+ else
+ NFSBCOPY(op->nfso_own->nfsow_owner, nlp->nfsl_openowner,
+ NFSV4CL_LOCKNAMELEN);
+ nlp->nfsl_seqid = 0;
+ nlp->nfsl_lockflags = flags;
+ nlp->nfsl_inprog = NULL;
+ nfscl_lockinit(&nlp->nfsl_rwlock);
+ LIST_INIT(&nlp->nfsl_lock);
+ if (donelocally) {
+ nlp->nfsl_open = NULL;
+ nfsstatsv1.cllocallockowners++;
+ } else {
+ nlp->nfsl_open = op;
+ nfsstatsv1.cllockowners++;
+ }
+ LIST_INSERT_HEAD(lhp, nlp, nfsl_list);
+ lp = nlp;
+ nlp = NULL;
+ *newonep = 1;
+ }
+
+ /*
+ * Now, update the byte ranges for locks.
+ */
+ ret = nfscl_updatelock(lp, &nlop, &otherlop, donelocally);
+ if (!ret)
+ donelocally = 1;
+ if (donelocally) {
+ *donelocallyp = 1;
+ if (!recovery)
+ nfscl_clrelease(clp);
+ } else {
+ /*
+ * Serial modifications on the lock owner for multiple threads
+ * for the same process using a read/write lock.
+ */
+ if (!recovery)
+ nfscl_lockexcl(&lp->nfsl_rwlock, NFSCLSTATEMUTEXPTR);
+ }
+ if (!recovery)
+ NFSUNLOCKCLSTATE();
+
+ if (nlp)
+ free(nlp, M_NFSCLLOCKOWNER);
+ if (nlop)
+ free(nlop, M_NFSCLLOCK);
+ if (otherlop)
+ free(otherlop, M_NFSCLLOCK);
+
+ *lpp = lp;
+ return (0);
+}
+
+/*
+ * Called to unlock a byte range, for LockU.
+ */
+APPLESTATIC int
+nfscl_relbytelock(vnode_t vp, u_int64_t off, u_int64_t len,
+ __unused struct ucred *cred, NFSPROC_T *p, int callcnt,
+ struct nfsclclient *clp, void *id, int flags,
+ struct nfscllockowner **lpp, int *dorpcp)
+{
+ struct nfscllockowner *lp;
+ struct nfsclowner *owp;
+ struct nfsclopen *op;
+ struct nfscllock *nlop, *other_lop = NULL;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+ int ret = 0, fnd;
+
+ np = VTONFS(vp);
+ *lpp = NULL;
+ *dorpcp = 0;
+
+ /*
+ * Might need these, so MALLOC them now, to
+ * avoid a tsleep() in MALLOC later.
+ */
+ nlop = malloc(
+ sizeof (struct nfscllock), M_NFSCLLOCK, M_WAITOK);
+ nlop->nfslo_type = F_UNLCK;
+ nlop->nfslo_first = off;
+ if (len == NFS64BITSSET) {
+ nlop->nfslo_end = NFS64BITSSET;
+ } else {
+ nlop->nfslo_end = off + len;
+ if (nlop->nfslo_end <= nlop->nfslo_first) {
+ free(nlop, M_NFSCLLOCK);
+ return (NFSERR_INVAL);
+ }
+ }
+ if (callcnt == 0) {
+ other_lop = malloc(
+ sizeof (struct nfscllock), M_NFSCLLOCK, M_WAITOK);
+ *other_lop = *nlop;
+ }
+ nfscl_filllockowner(id, own, flags);
+ dp = NULL;
+ NFSLOCKCLSTATE();
+ if (callcnt == 0)
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len);
+
+ /*
+ * First, unlock any local regions on a delegation.
+ */
+ if (dp != NULL) {
+ /* Look for this lockowner. */
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!NFSBCMP(lp->nfsl_owner, own,
+ NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+ if (lp != NULL)
+ /* Use other_lop, so nlop is still available */
+ (void)nfscl_updatelock(lp, &other_lop, NULL, 1);
+ }
+
+ /*
+ * Now, find a matching open/lockowner that hasn't already been done,
+ * as marked by nfsl_inprog.
+ */
+ lp = NULL;
+ fnd = 0;
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == np->n_fhp->nfh_len &&
+ !NFSBCMP(op->nfso_fh, np->n_fhp->nfh_fh, op->nfso_fhlen)) {
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (lp->nfsl_inprog == NULL &&
+ !NFSBCMP(lp->nfsl_owner, own,
+ NFSV4CL_LOCKNAMELEN)) {
+ fnd = 1;
+ break;
+ }
+ }
+ if (fnd)
+ break;
+ }
+ }
+ if (fnd)
+ break;
+ }
+
+ if (lp != NULL) {
+ ret = nfscl_updatelock(lp, &nlop, NULL, 0);
+ if (ret)
+ *dorpcp = 1;
+ /*
+ * Serial modifications on the lock owner for multiple
+ * threads for the same process using a read/write lock.
+ */
+ lp->nfsl_inprog = p;
+ nfscl_lockexcl(&lp->nfsl_rwlock, NFSCLSTATEMUTEXPTR);
+ *lpp = lp;
+ }
+ NFSUNLOCKCLSTATE();
+ if (nlop)
+ free(nlop, M_NFSCLLOCK);
+ if (other_lop)
+ free(other_lop, M_NFSCLLOCK);
+ return (0);
+}
+
+/*
+ * Release all lockowners marked in progess for this process and file.
+ */
+APPLESTATIC void
+nfscl_releasealllocks(struct nfsclclient *clp, vnode_t vp, NFSPROC_T *p,
+ void *id, int flags)
+{
+ struct nfsclowner *owp;
+ struct nfsclopen *op;
+ struct nfscllockowner *lp;
+ struct nfsnode *np;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+
+ np = VTONFS(vp);
+ nfscl_filllockowner(id, own, flags);
+ NFSLOCKCLSTATE();
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == np->n_fhp->nfh_len &&
+ !NFSBCMP(op->nfso_fh, np->n_fhp->nfh_fh, op->nfso_fhlen)) {
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (lp->nfsl_inprog == p &&
+ !NFSBCMP(lp->nfsl_owner, own,
+ NFSV4CL_LOCKNAMELEN)) {
+ lp->nfsl_inprog = NULL;
+ nfscl_lockunlock(&lp->nfsl_rwlock);
+ }
+ }
+ }
+ }
+ }
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Called to find out if any bytes within the byte range specified are
+ * write locked by the calling process. Used to determine if flushing
+ * is required before a LockU.
+ * If in doubt, return 1, so the flush will occur.
+ */
+APPLESTATIC int
+nfscl_checkwritelocked(vnode_t vp, struct flock *fl,
+ struct ucred *cred, NFSPROC_T *p, void *id, int flags)
+{
+ struct nfsclowner *owp;
+ struct nfscllockowner *lp;
+ struct nfsclopen *op;
+ struct nfsclclient *clp;
+ struct nfscllock *lop;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ u_int64_t off, end;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+ int error = 0;
+
+ np = VTONFS(vp);
+ switch (fl->l_whence) {
+ case SEEK_SET:
+ case SEEK_CUR:
+ /*
+ * Caller is responsible for adding any necessary offset
+ * when SEEK_CUR is used.
+ */
+ off = fl->l_start;
+ break;
+ case SEEK_END:
+ off = np->n_size + fl->l_start;
+ break;
+ default:
+ return (1);
+ }
+ if (fl->l_len != 0) {
+ end = off + fl->l_len;
+ if (end < off)
+ return (1);
+ } else {
+ end = NFS64BITSSET;
+ }
+
+ error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp);
+ if (error)
+ return (1);
+ nfscl_filllockowner(id, own, flags);
+ NFSLOCKCLSTATE();
+
+ /*
+ * First check the delegation locks.
+ */
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL) {
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!NFSBCMP(lp->nfsl_owner, own,
+ NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+ if (lp != NULL) {
+ LIST_FOREACH(lop, &lp->nfsl_lock, nfslo_list) {
+ if (lop->nfslo_first >= end)
+ break;
+ if (lop->nfslo_end <= off)
+ continue;
+ if (lop->nfslo_type == F_WRLCK) {
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+ return (1);
+ }
+ }
+ }
+ }
+
+ /*
+ * Now, check state against the server.
+ */
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == np->n_fhp->nfh_len &&
+ !NFSBCMP(op->nfso_fh, np->n_fhp->nfh_fh, op->nfso_fhlen)) {
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (!NFSBCMP(lp->nfsl_owner, own,
+ NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+ if (lp != NULL) {
+ LIST_FOREACH(lop, &lp->nfsl_lock, nfslo_list) {
+ if (lop->nfslo_first >= end)
+ break;
+ if (lop->nfslo_end <= off)
+ continue;
+ if (lop->nfslo_type == F_WRLCK) {
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+ return (1);
+ }
+ }
+ }
+ }
+ }
+ }
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+ return (0);
+}
+
+/*
+ * Release a byte range lock owner structure.
+ */
+APPLESTATIC void
+nfscl_lockrelease(struct nfscllockowner *lp, int error, int candelete)
+{
+ struct nfsclclient *clp;
+
+ if (lp == NULL)
+ return;
+ NFSLOCKCLSTATE();
+ clp = lp->nfsl_open->nfso_own->nfsow_clp;
+ if (error != 0 && candelete &&
+ (lp->nfsl_rwlock.nfslock_lock & NFSV4LOCK_WANTED) == 0)
+ nfscl_freelockowner(lp, 0);
+ else
+ nfscl_lockunlock(&lp->nfsl_rwlock);
+ nfscl_clrelease(clp);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Free up an open structure and any associated byte range lock structures.
+ */
+APPLESTATIC void
+nfscl_freeopen(struct nfsclopen *op, int local)
+{
+
+ LIST_REMOVE(op, nfso_list);
+ nfscl_freealllocks(&op->nfso_lock, local);
+ free(op, M_NFSCLOPEN);
+ if (local)
+ nfsstatsv1.cllocalopens--;
+ else
+ nfsstatsv1.clopens--;
+}
+
+/*
+ * Free up all lock owners and associated locks.
+ */
+static void
+nfscl_freealllocks(struct nfscllockownerhead *lhp, int local)
+{
+ struct nfscllockowner *lp, *nlp;
+
+ LIST_FOREACH_SAFE(lp, lhp, nfsl_list, nlp) {
+ if ((lp->nfsl_rwlock.nfslock_lock & NFSV4LOCK_WANTED))
+ panic("nfscllckw");
+ nfscl_freelockowner(lp, local);
+ }
+}
+
+/*
+ * Called for an Open when NFSERR_EXPIRED is received from the server.
+ * If there are no byte range locks nor a Share Deny lost, try to do a
+ * fresh Open. Otherwise, free the open.
+ */
+static int
+nfscl_expireopen(struct nfsclclient *clp, struct nfsclopen *op,
+ struct nfsmount *nmp, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfscllockowner *lp;
+ struct nfscldeleg *dp;
+ int mustdelete = 0, error;
+
+ /*
+ * Look for any byte range lock(s).
+ */
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (!LIST_EMPTY(&lp->nfsl_lock)) {
+ mustdelete = 1;
+ break;
+ }
+ }
+
+ /*
+ * If no byte range lock(s) nor a Share deny, try to re-open.
+ */
+ if (!mustdelete && (op->nfso_mode & NFSLCK_DENYBITS) == 0) {
+ newnfs_copycred(&op->nfso_cred, cred);
+ dp = NULL;
+ error = nfsrpc_reopen(nmp, op->nfso_fh,
+ op->nfso_fhlen, op->nfso_mode, op, &dp, cred, p);
+ if (error) {
+ mustdelete = 1;
+ if (dp != NULL) {
+ free(dp, M_NFSCLDELEG);
+ dp = NULL;
+ }
+ }
+ if (dp != NULL)
+ nfscl_deleg(nmp->nm_mountp, clp, op->nfso_fh,
+ op->nfso_fhlen, cred, p, &dp);
+ }
+
+ /*
+ * If a byte range lock or Share deny or couldn't re-open, free it.
+ */
+ if (mustdelete)
+ nfscl_freeopen(op, 0);
+ return (mustdelete);
+}
+
+/*
+ * Free up an open owner structure.
+ */
+static void
+nfscl_freeopenowner(struct nfsclowner *owp, int local)
+{
+
+ LIST_REMOVE(owp, nfsow_list);
+ free(owp, M_NFSCLOWNER);
+ if (local)
+ nfsstatsv1.cllocalopenowners--;
+ else
+ nfsstatsv1.clopenowners--;
+}
+
+/*
+ * Free up a byte range lock owner structure.
+ */
+APPLESTATIC void
+nfscl_freelockowner(struct nfscllockowner *lp, int local)
+{
+ struct nfscllock *lop, *nlop;
+
+ LIST_REMOVE(lp, nfsl_list);
+ LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) {
+ nfscl_freelock(lop, local);
+ }
+ free(lp, M_NFSCLLOCKOWNER);
+ if (local)
+ nfsstatsv1.cllocallockowners--;
+ else
+ nfsstatsv1.cllockowners--;
+}
+
+/*
+ * Free up a byte range lock structure.
+ */
+APPLESTATIC void
+nfscl_freelock(struct nfscllock *lop, int local)
+{
+
+ LIST_REMOVE(lop, nfslo_list);
+ free(lop, M_NFSCLLOCK);
+ if (local)
+ nfsstatsv1.cllocallocks--;
+ else
+ nfsstatsv1.cllocks--;
+}
+
+/*
+ * Clean out the state related to a delegation.
+ */
+static void
+nfscl_cleandeleg(struct nfscldeleg *dp)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op;
+
+ LIST_FOREACH_SAFE(owp, &dp->nfsdl_owner, nfsow_list, nowp) {
+ op = LIST_FIRST(&owp->nfsow_open);
+ if (op != NULL) {
+ if (LIST_NEXT(op, nfso_list) != NULL)
+ panic("nfscleandel");
+ nfscl_freeopen(op, 1);
+ }
+ nfscl_freeopenowner(owp, 1);
+ }
+ nfscl_freealllocks(&dp->nfsdl_lock, 1);
+}
+
+/*
+ * Free a delegation.
+ */
+static void
+nfscl_freedeleg(struct nfscldeleghead *hdp, struct nfscldeleg *dp)
+{
+
+ TAILQ_REMOVE(hdp, dp, nfsdl_list);
+ LIST_REMOVE(dp, nfsdl_hash);
+ free(dp, M_NFSCLDELEG);
+ nfsstatsv1.cldelegates--;
+ nfscl_delegcnt--;
+}
+
+/*
+ * Free up all state related to this client structure.
+ */
+static void
+nfscl_cleanclient(struct nfsclclient *clp)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op, *nop;
+ struct nfscllayout *lyp, *nlyp;
+ struct nfscldevinfo *dip, *ndip;
+
+ TAILQ_FOREACH_SAFE(lyp, &clp->nfsc_layout, nfsly_list, nlyp)
+ nfscl_freelayout(lyp);
+
+ LIST_FOREACH_SAFE(dip, &clp->nfsc_devinfo, nfsdi_list, ndip)
+ nfscl_freedevinfo(dip);
+
+ /* Now, all the OpenOwners, etc. */
+ LIST_FOREACH_SAFE(owp, &clp->nfsc_owner, nfsow_list, nowp) {
+ LIST_FOREACH_SAFE(op, &owp->nfsow_open, nfso_list, nop) {
+ nfscl_freeopen(op, 0);
+ }
+ nfscl_freeopenowner(owp, 0);
+ }
+}
+
+/*
+ * Called when an NFSERR_EXPIRED is received from the server.
+ */
+static void
+nfscl_expireclient(struct nfsclclient *clp, struct nfsmount *nmp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclowner *owp, *nowp, *towp;
+ struct nfsclopen *op, *nop, *top;
+ struct nfscldeleg *dp, *ndp;
+ int ret, printed = 0;
+
+ /*
+ * First, merge locally issued Opens into the list for the server.
+ */
+ dp = TAILQ_FIRST(&clp->nfsc_deleg);
+ while (dp != NULL) {
+ ndp = TAILQ_NEXT(dp, nfsdl_list);
+ owp = LIST_FIRST(&dp->nfsdl_owner);
+ while (owp != NULL) {
+ nowp = LIST_NEXT(owp, nfsow_list);
+ op = LIST_FIRST(&owp->nfsow_open);
+ if (op != NULL) {
+ if (LIST_NEXT(op, nfso_list) != NULL)
+ panic("nfsclexp");
+ LIST_FOREACH(towp, &clp->nfsc_owner, nfsow_list) {
+ if (!NFSBCMP(towp->nfsow_owner, owp->nfsow_owner,
+ NFSV4CL_LOCKNAMELEN))
+ break;
+ }
+ if (towp != NULL) {
+ /* Merge opens in */
+ LIST_FOREACH(top, &towp->nfsow_open, nfso_list) {
+ if (top->nfso_fhlen == op->nfso_fhlen &&
+ !NFSBCMP(top->nfso_fh, op->nfso_fh,
+ op->nfso_fhlen)) {
+ top->nfso_mode |= op->nfso_mode;
+ top->nfso_opencnt += op->nfso_opencnt;
+ break;
+ }
+ }
+ if (top == NULL) {
+ /* Just add the open to the owner list */
+ LIST_REMOVE(op, nfso_list);
+ op->nfso_own = towp;
+ LIST_INSERT_HEAD(&towp->nfsow_open, op, nfso_list);
+ nfsstatsv1.cllocalopens--;
+ nfsstatsv1.clopens++;
+ }
+ } else {
+ /* Just add the openowner to the client list */
+ LIST_REMOVE(owp, nfsow_list);
+ owp->nfsow_clp = clp;
+ LIST_INSERT_HEAD(&clp->nfsc_owner, owp, nfsow_list);
+ nfsstatsv1.cllocalopenowners--;
+ nfsstatsv1.clopenowners++;
+ nfsstatsv1.cllocalopens--;
+ nfsstatsv1.clopens++;
+ }
+ }
+ owp = nowp;
+ }
+ if (!printed && !LIST_EMPTY(&dp->nfsdl_lock)) {
+ printed = 1;
+ printf("nfsv4 expired locks lost\n");
+ }
+ nfscl_cleandeleg(dp);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ dp = ndp;
+ }
+ if (!TAILQ_EMPTY(&clp->nfsc_deleg))
+ panic("nfsclexp");
+
+ /*
+ * Now, try and reopen against the server.
+ */
+ LIST_FOREACH_SAFE(owp, &clp->nfsc_owner, nfsow_list, nowp) {
+ owp->nfsow_seqid = 0;
+ LIST_FOREACH_SAFE(op, &owp->nfsow_open, nfso_list, nop) {
+ ret = nfscl_expireopen(clp, op, nmp, cred, p);
+ if (ret && !printed) {
+ printed = 1;
+ printf("nfsv4 expired locks lost\n");
+ }
+ }
+ if (LIST_EMPTY(&owp->nfsow_open))
+ nfscl_freeopenowner(owp, 0);
+ }
+}
+
+/*
+ * This function must be called after the process represented by "own" has
+ * exited. Must be called with CLSTATE lock held.
+ */
+static void
+nfscl_cleanup_common(struct nfsclclient *clp, u_int8_t *own)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfscllockowner *lp, *nlp;
+ struct nfscldeleg *dp;
+
+ /* First, get rid of local locks on delegations. */
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ LIST_FOREACH_SAFE(lp, &dp->nfsdl_lock, nfsl_list, nlp) {
+ if (!NFSBCMP(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN)) {
+ if ((lp->nfsl_rwlock.nfslock_lock & NFSV4LOCK_WANTED))
+ panic("nfscllckw");
+ nfscl_freelockowner(lp, 1);
+ }
+ }
+ }
+ owp = LIST_FIRST(&clp->nfsc_owner);
+ while (owp != NULL) {
+ nowp = LIST_NEXT(owp, nfsow_list);
+ if (!NFSBCMP(owp->nfsow_owner, own,
+ NFSV4CL_LOCKNAMELEN)) {
+ /*
+ * If there are children that haven't closed the
+ * file descriptors yet, the opens will still be
+ * here. For that case, let the renew thread clear
+ * out the OpenOwner later.
+ */
+ if (LIST_EMPTY(&owp->nfsow_open))
+ nfscl_freeopenowner(owp, 0);
+ else
+ owp->nfsow_defunct = 1;
+ }
+ owp = nowp;
+ }
+}
+
+/*
+ * Find open/lock owners for processes that have exited.
+ */
+static void
+nfscl_cleanupkext(struct nfsclclient *clp, struct nfscllockownerfhhead *lhp)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op;
+ struct nfscllockowner *lp, *nlp;
+ struct nfscldeleg *dp;
+
+ NFSPROCLISTLOCK();
+ NFSLOCKCLSTATE();
+ LIST_FOREACH_SAFE(owp, &clp->nfsc_owner, nfsow_list, nowp) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp) {
+ if (LIST_EMPTY(&lp->nfsl_lock))
+ nfscl_emptylockowner(lp, lhp);
+ }
+ }
+ if (nfscl_procdoesntexist(owp->nfsow_owner))
+ nfscl_cleanup_common(clp, owp->nfsow_owner);
+ }
+
+ /*
+ * For the single open_owner case, these lock owners need to be
+ * checked to see if they still exist separately.
+ * This is because nfscl_procdoesntexist() never returns true for
+ * the single open_owner so that the above doesn't ever call
+ * nfscl_cleanup_common().
+ */
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ LIST_FOREACH_SAFE(lp, &dp->nfsdl_lock, nfsl_list, nlp) {
+ if (nfscl_procdoesntexist(lp->nfsl_owner))
+ nfscl_cleanup_common(clp, lp->nfsl_owner);
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ NFSPROCLISTUNLOCK();
+}
+
+/*
+ * Take the empty lock owner and move it to the local lhp list if the
+ * associated process no longer exists.
+ */
+static void
+nfscl_emptylockowner(struct nfscllockowner *lp,
+ struct nfscllockownerfhhead *lhp)
+{
+ struct nfscllockownerfh *lfhp, *mylfhp;
+ struct nfscllockowner *nlp;
+ int fnd_it;
+
+ /* If not a Posix lock owner, just return. */
+ if ((lp->nfsl_lockflags & F_POSIX) == 0)
+ return;
+
+ fnd_it = 0;
+ mylfhp = NULL;
+ /*
+ * First, search to see if this lock owner is already in the list.
+ * If it is, then the associated process no longer exists.
+ */
+ SLIST_FOREACH(lfhp, lhp, nfslfh_list) {
+ if (lfhp->nfslfh_len == lp->nfsl_open->nfso_fhlen &&
+ !NFSBCMP(lfhp->nfslfh_fh, lp->nfsl_open->nfso_fh,
+ lfhp->nfslfh_len))
+ mylfhp = lfhp;
+ LIST_FOREACH(nlp, &lfhp->nfslfh_lock, nfsl_list)
+ if (!NFSBCMP(nlp->nfsl_owner, lp->nfsl_owner,
+ NFSV4CL_LOCKNAMELEN))
+ fnd_it = 1;
+ }
+ /* If not found, check if process still exists. */
+ if (fnd_it == 0 && nfscl_procdoesntexist(lp->nfsl_owner) == 0)
+ return;
+
+ /* Move the lock owner over to the local list. */
+ if (mylfhp == NULL) {
+ mylfhp = malloc(sizeof(struct nfscllockownerfh), M_TEMP,
+ M_NOWAIT);
+ if (mylfhp == NULL)
+ return;
+ mylfhp->nfslfh_len = lp->nfsl_open->nfso_fhlen;
+ NFSBCOPY(lp->nfsl_open->nfso_fh, mylfhp->nfslfh_fh,
+ mylfhp->nfslfh_len);
+ LIST_INIT(&mylfhp->nfslfh_lock);
+ SLIST_INSERT_HEAD(lhp, mylfhp, nfslfh_list);
+ }
+ LIST_REMOVE(lp, nfsl_list);
+ LIST_INSERT_HEAD(&mylfhp->nfslfh_lock, lp, nfsl_list);
+}
+
+static int fake_global; /* Used to force visibility of MNTK_UNMOUNTF */
+/*
+ * Called from nfs umount to free up the clientid.
+ */
+APPLESTATIC void
+nfscl_umount(struct nfsmount *nmp, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ struct ucred *cred;
+ int igotlock;
+
+ /*
+ * For the case that matters, this is the thread that set
+ * MNTK_UNMOUNTF, so it will see it set. The code that follows is
+ * done to ensure that any thread executing nfscl_getcl() after
+ * this time, will see MNTK_UNMOUNTF set. nfscl_getcl() uses the
+ * mutex for NFSLOCKCLSTATE(), so it is "m" for the following
+ * explanation, courtesy of Alan Cox.
+ * What follows is a snippet from Alan Cox's email at:
+ * https://docs.FreeBSD.org/cgi/mid.cgi?BANLkTikR3d65zPHo9==08ZfJ2vmqZucEvw
+ *
+ * 1. Set MNTK_UNMOUNTF
+ * 2. Acquire a standard FreeBSD mutex "m".
+ * 3. Update some data structures.
+ * 4. Release mutex "m".
+ *
+ * Then, other threads that acquire "m" after step 4 has occurred will
+ * see MNTK_UNMOUNTF as set. But, other threads that beat thread X to
+ * step 2 may or may not see MNTK_UNMOUNTF as set.
+ */
+ NFSLOCKCLSTATE();
+ if ((nmp->nm_mountp->mnt_kern_flag & MNTK_UNMOUNTF) != 0) {
+ fake_global++;
+ NFSUNLOCKCLSTATE();
+ NFSLOCKCLSTATE();
+ }
+
+ clp = nmp->nm_clp;
+ if (clp != NULL) {
+ if ((clp->nfsc_flags & NFSCLFLAGS_INITED) == 0)
+ panic("nfscl umount");
+
+ /*
+ * First, handshake with the nfscl renew thread, to terminate
+ * it.
+ */
+ clp->nfsc_flags |= NFSCLFLAGS_UMOUNT;
+ while (clp->nfsc_flags & NFSCLFLAGS_HASTHREAD)
+ (void)mtx_sleep(clp, NFSCLSTATEMUTEXPTR, PWAIT,
+ "nfsclumnt", hz);
+
+ /*
+ * Now, get the exclusive lock on the client state, so
+ * that no uses of the state are still in progress.
+ */
+ do {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1, NULL,
+ NFSCLSTATEMUTEXPTR, NULL);
+ } while (!igotlock);
+ NFSUNLOCKCLSTATE();
+
+ /*
+ * Free up all the state. It will expire on the server, but
+ * maybe we should do a SetClientId/SetClientIdConfirm so
+ * the server throws it away?
+ */
+ LIST_REMOVE(clp, nfsc_list);
+ nfscl_delegreturnall(clp, p);
+ cred = newnfs_getcred();
+ if (NFSHASNFSV4N(nmp)) {
+ (void)nfsrpc_destroysession(nmp, clp, cred, p);
+ (void)nfsrpc_destroyclient(nmp, clp, cred, p);
+ } else
+ (void)nfsrpc_setclient(nmp, clp, 0, cred, p);
+ nfscl_cleanclient(clp);
+ nmp->nm_clp = NULL;
+ NFSFREECRED(cred);
+ free(clp, M_NFSCLCLIENT);
+ } else
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * This function is called when a server replies with NFSERR_STALECLIENTID
+ * NFSERR_STALESTATEID or NFSERR_BADSESSION. It traverses the clientid lists,
+ * doing Opens and Locks with reclaim. If these fail, it deletes the
+ * corresponding state.
+ */
+static void
+nfscl_recover(struct nfsclclient *clp, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op, *nop;
+ struct nfscllockowner *lp, *nlp;
+ struct nfscllock *lop, *nlop;
+ struct nfscldeleg *dp, *ndp, *tdp;
+ struct nfsmount *nmp;
+ struct ucred *tcred;
+ struct nfsclopenhead extra_open;
+ struct nfscldeleghead extra_deleg;
+ struct nfsreq *rep;
+ u_int64_t len;
+ u_int32_t delegtype = NFSV4OPEN_DELEGATEWRITE, mode;
+ int i, igotlock = 0, error, trycnt, firstlock;
+ struct nfscllayout *lyp, *nlyp;
+
+ /*
+ * First, lock the client structure, so everyone else will
+ * block when trying to use state.
+ */
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_RECVRINPROG;
+ do {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1, NULL,
+ NFSCLSTATEMUTEXPTR, NULL);
+ } while (!igotlock);
+ NFSUNLOCKCLSTATE();
+
+ nmp = clp->nfsc_nmp;
+ if (nmp == NULL)
+ panic("nfscl recover");
+
+ /*
+ * For now, just get rid of all layouts. There may be a need
+ * to do LayoutCommit Ops with reclaim == true later.
+ */
+ TAILQ_FOREACH_SAFE(lyp, &clp->nfsc_layout, nfsly_list, nlyp)
+ nfscl_freelayout(lyp);
+ TAILQ_INIT(&clp->nfsc_layout);
+ for (i = 0; i < NFSCLLAYOUTHASHSIZE; i++)
+ LIST_INIT(&clp->nfsc_layouthash[i]);
+
+ trycnt = 5;
+ do {
+ error = nfsrpc_setclient(nmp, clp, 1, cred, p);
+ } while ((error == NFSERR_STALECLIENTID ||
+ error == NFSERR_BADSESSION ||
+ error == NFSERR_STALEDONTRECOVER) && --trycnt > 0);
+ if (error) {
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags &= ~(NFSCLFLAGS_RECOVER |
+ NFSCLFLAGS_RECVRINPROG);
+ wakeup(&clp->nfsc_flags);
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ clp->nfsc_flags |= NFSCLFLAGS_HASCLIENTID;
+ clp->nfsc_flags &= ~NFSCLFLAGS_RECOVER;
+
+ /*
+ * Mark requests already queued on the server, so that they don't
+ * initiate another recovery cycle. Any requests already in the
+ * queue that handle state information will have the old stale
+ * clientid/stateid and will get a NFSERR_STALESTATEID,
+ * NFSERR_STALECLIENTID or NFSERR_BADSESSION reply from the server.
+ * This will be translated to NFSERR_STALEDONTRECOVER when
+ * R_DONTRECOVER is set.
+ */
+ NFSLOCKREQ();
+ TAILQ_FOREACH(rep, &nfsd_reqq, r_chain) {
+ if (rep->r_nmp == nmp)
+ rep->r_flags |= R_DONTRECOVER;
+ }
+ NFSUNLOCKREQ();
+
+ /*
+ * Now, mark all delegations "need reclaim".
+ */
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list)
+ dp->nfsdl_flags |= NFSCLDL_NEEDRECLAIM;
+
+ TAILQ_INIT(&extra_deleg);
+ LIST_INIT(&extra_open);
+ /*
+ * Now traverse the state lists, doing Open and Lock Reclaims.
+ */
+ tcred = newnfs_getcred();
+ owp = LIST_FIRST(&clp->nfsc_owner);
+ while (owp != NULL) {
+ nowp = LIST_NEXT(owp, nfsow_list);
+ owp->nfsow_seqid = 0;
+ op = LIST_FIRST(&owp->nfsow_open);
+ while (op != NULL) {
+ nop = LIST_NEXT(op, nfso_list);
+ if (error != NFSERR_NOGRACE && error != NFSERR_BADSESSION) {
+ /* Search for a delegation to reclaim with the open */
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ if (!(dp->nfsdl_flags & NFSCLDL_NEEDRECLAIM))
+ continue;
+ if ((dp->nfsdl_flags & NFSCLDL_WRITE)) {
+ mode = NFSV4OPEN_ACCESSWRITE;
+ delegtype = NFSV4OPEN_DELEGATEWRITE;
+ } else {
+ mode = NFSV4OPEN_ACCESSREAD;
+ delegtype = NFSV4OPEN_DELEGATEREAD;
+ }
+ if ((op->nfso_mode & mode) == mode &&
+ op->nfso_fhlen == dp->nfsdl_fhlen &&
+ !NFSBCMP(op->nfso_fh, dp->nfsdl_fh, op->nfso_fhlen))
+ break;
+ }
+ ndp = dp;
+ if (dp == NULL)
+ delegtype = NFSV4OPEN_DELEGATENONE;
+ newnfs_copycred(&op->nfso_cred, tcred);
+ error = nfscl_tryopen(nmp, NULL, op->nfso_fh,
+ op->nfso_fhlen, op->nfso_fh, op->nfso_fhlen,
+ op->nfso_mode, op, NULL, 0, &ndp, 1, delegtype,
+ tcred, p);
+ if (!error) {
+ /* Handle any replied delegation */
+ if (ndp != NULL && ((ndp->nfsdl_flags & NFSCLDL_WRITE)
+ || NFSMNT_RDONLY(nmp->nm_mountp))) {
+ if ((ndp->nfsdl_flags & NFSCLDL_WRITE))
+ mode = NFSV4OPEN_ACCESSWRITE;
+ else
+ mode = NFSV4OPEN_ACCESSREAD;
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ if (!(dp->nfsdl_flags & NFSCLDL_NEEDRECLAIM))
+ continue;
+ if ((op->nfso_mode & mode) == mode &&
+ op->nfso_fhlen == dp->nfsdl_fhlen &&
+ !NFSBCMP(op->nfso_fh, dp->nfsdl_fh,
+ op->nfso_fhlen)) {
+ dp->nfsdl_stateid = ndp->nfsdl_stateid;
+ dp->nfsdl_sizelimit = ndp->nfsdl_sizelimit;
+ dp->nfsdl_ace = ndp->nfsdl_ace;
+ dp->nfsdl_change = ndp->nfsdl_change;
+ dp->nfsdl_flags &= ~NFSCLDL_NEEDRECLAIM;
+ if ((ndp->nfsdl_flags & NFSCLDL_RECALL))
+ dp->nfsdl_flags |= NFSCLDL_RECALL;
+ free(ndp, M_NFSCLDELEG);
+ ndp = NULL;
+ break;
+ }
+ }
+ }
+ if (ndp != NULL)
+ TAILQ_INSERT_HEAD(&extra_deleg, ndp, nfsdl_list);
+
+ /* and reclaim all byte range locks */
+ lp = LIST_FIRST(&op->nfso_lock);
+ while (lp != NULL) {
+ nlp = LIST_NEXT(lp, nfsl_list);
+ lp->nfsl_seqid = 0;
+ firstlock = 1;
+ lop = LIST_FIRST(&lp->nfsl_lock);
+ while (lop != NULL) {
+ nlop = LIST_NEXT(lop, nfslo_list);
+ if (lop->nfslo_end == NFS64BITSSET)
+ len = NFS64BITSSET;
+ else
+ len = lop->nfslo_end - lop->nfslo_first;
+ error = nfscl_trylock(nmp, NULL,
+ op->nfso_fh, op->nfso_fhlen, lp,
+ firstlock, 1, lop->nfslo_first, len,
+ lop->nfslo_type, tcred, p);
+ if (error != 0)
+ nfscl_freelock(lop, 0);
+ else
+ firstlock = 0;
+ lop = nlop;
+ }
+ /* If no locks, but a lockowner, just delete it. */
+ if (LIST_EMPTY(&lp->nfsl_lock))
+ nfscl_freelockowner(lp, 0);
+ lp = nlp;
+ }
+ }
+ }
+ if (error != 0 && error != NFSERR_BADSESSION)
+ nfscl_freeopen(op, 0);
+ op = nop;
+ }
+ owp = nowp;
+ }
+
+ /*
+ * Now, try and get any delegations not yet reclaimed by cobbling
+ * to-gether an appropriate open.
+ */
+ nowp = NULL;
+ dp = TAILQ_FIRST(&clp->nfsc_deleg);
+ while (dp != NULL) {
+ ndp = TAILQ_NEXT(dp, nfsdl_list);
+ if ((dp->nfsdl_flags & NFSCLDL_NEEDRECLAIM)) {
+ if (nowp == NULL) {
+ nowp = malloc(
+ sizeof (struct nfsclowner), M_NFSCLOWNER, M_WAITOK);
+ /*
+ * Name must be as long an largest possible
+ * NFSV4CL_LOCKNAMELEN. 12 for now.
+ */
+ NFSBCOPY("RECLAIMDELEG", nowp->nfsow_owner,
+ NFSV4CL_LOCKNAMELEN);
+ LIST_INIT(&nowp->nfsow_open);
+ nowp->nfsow_clp = clp;
+ nowp->nfsow_seqid = 0;
+ nowp->nfsow_defunct = 0;
+ nfscl_lockinit(&nowp->nfsow_rwlock);
+ }
+ nop = NULL;
+ if (error != NFSERR_NOGRACE && error != NFSERR_BADSESSION) {
+ nop = malloc(sizeof (struct nfsclopen) +
+ dp->nfsdl_fhlen - 1, M_NFSCLOPEN, M_WAITOK);
+ nop->nfso_own = nowp;
+ if ((dp->nfsdl_flags & NFSCLDL_WRITE)) {
+ nop->nfso_mode = NFSV4OPEN_ACCESSWRITE;
+ delegtype = NFSV4OPEN_DELEGATEWRITE;
+ } else {
+ nop->nfso_mode = NFSV4OPEN_ACCESSREAD;
+ delegtype = NFSV4OPEN_DELEGATEREAD;
+ }
+ nop->nfso_opencnt = 0;
+ nop->nfso_posixlock = 1;
+ nop->nfso_fhlen = dp->nfsdl_fhlen;
+ NFSBCOPY(dp->nfsdl_fh, nop->nfso_fh, dp->nfsdl_fhlen);
+ LIST_INIT(&nop->nfso_lock);
+ nop->nfso_stateid.seqid = 0;
+ nop->nfso_stateid.other[0] = 0;
+ nop->nfso_stateid.other[1] = 0;
+ nop->nfso_stateid.other[2] = 0;
+ newnfs_copycred(&dp->nfsdl_cred, tcred);
+ newnfs_copyincred(tcred, &nop->nfso_cred);
+ tdp = NULL;
+ error = nfscl_tryopen(nmp, NULL, nop->nfso_fh,
+ nop->nfso_fhlen, nop->nfso_fh, nop->nfso_fhlen,
+ nop->nfso_mode, nop, NULL, 0, &tdp, 1,
+ delegtype, tcred, p);
+ if (tdp != NULL) {
+ if ((tdp->nfsdl_flags & NFSCLDL_WRITE))
+ mode = NFSV4OPEN_ACCESSWRITE;
+ else
+ mode = NFSV4OPEN_ACCESSREAD;
+ if ((nop->nfso_mode & mode) == mode &&
+ nop->nfso_fhlen == tdp->nfsdl_fhlen &&
+ !NFSBCMP(nop->nfso_fh, tdp->nfsdl_fh,
+ nop->nfso_fhlen)) {
+ dp->nfsdl_stateid = tdp->nfsdl_stateid;
+ dp->nfsdl_sizelimit = tdp->nfsdl_sizelimit;
+ dp->nfsdl_ace = tdp->nfsdl_ace;
+ dp->nfsdl_change = tdp->nfsdl_change;
+ dp->nfsdl_flags &= ~NFSCLDL_NEEDRECLAIM;
+ if ((tdp->nfsdl_flags & NFSCLDL_RECALL))
+ dp->nfsdl_flags |= NFSCLDL_RECALL;
+ free(tdp, M_NFSCLDELEG);
+ } else {
+ TAILQ_INSERT_HEAD(&extra_deleg, tdp, nfsdl_list);
+ }
+ }
+ }
+ if (error) {
+ if (nop != NULL)
+ free(nop, M_NFSCLOPEN);
+ /*
+ * Couldn't reclaim it, so throw the state
+ * away. Ouch!!
+ */
+ nfscl_cleandeleg(dp);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ } else {
+ LIST_INSERT_HEAD(&extra_open, nop, nfso_list);
+ }
+ }
+ dp = ndp;
+ }
+
+ /*
+ * Now, get rid of extra Opens and Delegations.
+ */
+ LIST_FOREACH_SAFE(op, &extra_open, nfso_list, nop) {
+ do {
+ newnfs_copycred(&op->nfso_cred, tcred);
+ error = nfscl_tryclose(op, tcred, nmp, p);
+ if (error == NFSERR_GRACE)
+ (void) nfs_catnap(PZERO, error, "nfsexcls");
+ } while (error == NFSERR_GRACE);
+ LIST_REMOVE(op, nfso_list);
+ free(op, M_NFSCLOPEN);
+ }
+ if (nowp != NULL)
+ free(nowp, M_NFSCLOWNER);
+
+ TAILQ_FOREACH_SAFE(dp, &extra_deleg, nfsdl_list, ndp) {
+ do {
+ newnfs_copycred(&dp->nfsdl_cred, tcred);
+ error = nfscl_trydelegreturn(dp, tcred, nmp, p);
+ if (error == NFSERR_GRACE)
+ (void) nfs_catnap(PZERO, error, "nfsexdlg");
+ } while (error == NFSERR_GRACE);
+ TAILQ_REMOVE(&extra_deleg, dp, nfsdl_list);
+ free(dp, M_NFSCLDELEG);
+ }
+
+ /* For NFSv4.1 or later, do a RECLAIM_COMPLETE. */
+ if (NFSHASNFSV4N(nmp))
+ (void)nfsrpc_reclaimcomplete(nmp, cred, p);
+
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags &= ~NFSCLFLAGS_RECVRINPROG;
+ wakeup(&clp->nfsc_flags);
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ NFSFREECRED(tcred);
+}
+
+/*
+ * This function is called when a server replies with NFSERR_EXPIRED.
+ * It deletes all state for the client and does a fresh SetClientId/confirm.
+ * XXX Someday it should post a signal to the process(es) that hold the
+ * state, so they know that lock state has been lost.
+ */
+APPLESTATIC int
+nfscl_hasexpired(struct nfsclclient *clp, u_int32_t clidrev, NFSPROC_T *p)
+{
+ struct nfsmount *nmp;
+ struct ucred *cred;
+ int igotlock = 0, error, trycnt;
+
+ /*
+ * If the clientid has gone away or a new SetClientid has already
+ * been done, just return ok.
+ */
+ if (clp == NULL || clidrev != clp->nfsc_clientidrev)
+ return (0);
+
+ /*
+ * First, lock the client structure, so everyone else will
+ * block when trying to use state. Also, use NFSCLFLAGS_EXPIREIT so
+ * that only one thread does the work.
+ */
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_EXPIREIT;
+ do {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1, NULL,
+ NFSCLSTATEMUTEXPTR, NULL);
+ } while (!igotlock && (clp->nfsc_flags & NFSCLFLAGS_EXPIREIT));
+ if ((clp->nfsc_flags & NFSCLFLAGS_EXPIREIT) == 0) {
+ if (igotlock)
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ clp->nfsc_flags |= NFSCLFLAGS_RECVRINPROG;
+ NFSUNLOCKCLSTATE();
+
+ nmp = clp->nfsc_nmp;
+ if (nmp == NULL)
+ panic("nfscl expired");
+ cred = newnfs_getcred();
+ trycnt = 5;
+ do {
+ error = nfsrpc_setclient(nmp, clp, 0, cred, p);
+ } while ((error == NFSERR_STALECLIENTID ||
+ error == NFSERR_BADSESSION ||
+ error == NFSERR_STALEDONTRECOVER) && --trycnt > 0);
+ if (error) {
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags &= ~NFSCLFLAGS_RECOVER;
+ } else {
+ /*
+ * Expire the state for the client.
+ */
+ nfscl_expireclient(clp, nmp, cred, p);
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_HASCLIENTID;
+ clp->nfsc_flags &= ~NFSCLFLAGS_RECOVER;
+ }
+ clp->nfsc_flags &= ~(NFSCLFLAGS_EXPIREIT | NFSCLFLAGS_RECVRINPROG);
+ wakeup(&clp->nfsc_flags);
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ NFSFREECRED(cred);
+ return (error);
+}
+
+/*
+ * This function inserts a lock in the list after insert_lop.
+ */
+static void
+nfscl_insertlock(struct nfscllockowner *lp, struct nfscllock *new_lop,
+ struct nfscllock *insert_lop, int local)
+{
+
+ if ((struct nfscllockowner *)insert_lop == lp)
+ LIST_INSERT_HEAD(&lp->nfsl_lock, new_lop, nfslo_list);
+ else
+ LIST_INSERT_AFTER(insert_lop, new_lop, nfslo_list);
+ if (local)
+ nfsstatsv1.cllocallocks++;
+ else
+ nfsstatsv1.cllocks++;
+}
+
+/*
+ * This function updates the locking for a lock owner and given file. It
+ * maintains a list of lock ranges ordered on increasing file offset that
+ * are NFSCLLOCK_READ or NFSCLLOCK_WRITE and non-overlapping (aka POSIX style).
+ * It always adds new_lop to the list and sometimes uses the one pointed
+ * at by other_lopp.
+ * Returns 1 if the locks were modified, 0 otherwise.
+ */
+static int
+nfscl_updatelock(struct nfscllockowner *lp, struct nfscllock **new_lopp,
+ struct nfscllock **other_lopp, int local)
+{
+ struct nfscllock *new_lop = *new_lopp;
+ struct nfscllock *lop, *tlop, *ilop;
+ struct nfscllock *other_lop;
+ int unlock = 0, modified = 0;
+ u_int64_t tmp;
+
+ /*
+ * Work down the list until the lock is merged.
+ */
+ if (new_lop->nfslo_type == F_UNLCK)
+ unlock = 1;
+ ilop = (struct nfscllock *)lp;
+ lop = LIST_FIRST(&lp->nfsl_lock);
+ while (lop != NULL) {
+ /*
+ * Only check locks for this file that aren't before the start of
+ * new lock's range.
+ */
+ if (lop->nfslo_end >= new_lop->nfslo_first) {
+ if (new_lop->nfslo_end < lop->nfslo_first) {
+ /*
+ * If the new lock ends before the start of the
+ * current lock's range, no merge, just insert
+ * the new lock.
+ */
+ break;
+ }
+ if (new_lop->nfslo_type == lop->nfslo_type ||
+ (new_lop->nfslo_first <= lop->nfslo_first &&
+ new_lop->nfslo_end >= lop->nfslo_end)) {
+ /*
+ * This lock can be absorbed by the new lock/unlock.
+ * This happens when it covers the entire range
+ * of the old lock or is contiguous
+ * with the old lock and is of the same type or an
+ * unlock.
+ */
+ if (new_lop->nfslo_type != lop->nfslo_type ||
+ new_lop->nfslo_first != lop->nfslo_first ||
+ new_lop->nfslo_end != lop->nfslo_end)
+ modified = 1;
+ if (lop->nfslo_first < new_lop->nfslo_first)
+ new_lop->nfslo_first = lop->nfslo_first;
+ if (lop->nfslo_end > new_lop->nfslo_end)
+ new_lop->nfslo_end = lop->nfslo_end;
+ tlop = lop;
+ lop = LIST_NEXT(lop, nfslo_list);
+ nfscl_freelock(tlop, local);
+ continue;
+ }
+
+ /*
+ * All these cases are for contiguous locks that are not the
+ * same type, so they can't be merged.
+ */
+ if (new_lop->nfslo_first <= lop->nfslo_first) {
+ /*
+ * This case is where the new lock overlaps with the
+ * first part of the old lock. Move the start of the
+ * old lock to just past the end of the new lock. The
+ * new lock will be inserted in front of the old, since
+ * ilop hasn't been updated. (We are done now.)
+ */
+ if (lop->nfslo_first != new_lop->nfslo_end) {
+ lop->nfslo_first = new_lop->nfslo_end;
+ modified = 1;
+ }
+ break;
+ }
+ if (new_lop->nfslo_end >= lop->nfslo_end) {
+ /*
+ * This case is where the new lock overlaps with the
+ * end of the old lock's range. Move the old lock's
+ * end to just before the new lock's first and insert
+ * the new lock after the old lock.
+ * Might not be done yet, since the new lock could
+ * overlap further locks with higher ranges.
+ */
+ if (lop->nfslo_end != new_lop->nfslo_first) {
+ lop->nfslo_end = new_lop->nfslo_first;
+ modified = 1;
+ }
+ ilop = lop;
+ lop = LIST_NEXT(lop, nfslo_list);
+ continue;
+ }
+ /*
+ * The final case is where the new lock's range is in the
+ * middle of the current lock's and splits the current lock
+ * up. Use *other_lopp to handle the second part of the
+ * split old lock range. (We are done now.)
+ * For unlock, we use new_lop as other_lop and tmp, since
+ * other_lop and new_lop are the same for this case.
+ * We noted the unlock case above, so we don't need
+ * new_lop->nfslo_type any longer.
+ */
+ tmp = new_lop->nfslo_first;
+ if (unlock) {
+ other_lop = new_lop;
+ *new_lopp = NULL;
+ } else {
+ other_lop = *other_lopp;
+ *other_lopp = NULL;
+ }
+ other_lop->nfslo_first = new_lop->nfslo_end;
+ other_lop->nfslo_end = lop->nfslo_end;
+ other_lop->nfslo_type = lop->nfslo_type;
+ lop->nfslo_end = tmp;
+ nfscl_insertlock(lp, other_lop, lop, local);
+ ilop = lop;
+ modified = 1;
+ break;
+ }
+ ilop = lop;
+ lop = LIST_NEXT(lop, nfslo_list);
+ if (lop == NULL)
+ break;
+ }
+
+ /*
+ * Insert the new lock in the list at the appropriate place.
+ */
+ if (!unlock) {
+ nfscl_insertlock(lp, new_lop, ilop, local);
+ *new_lopp = NULL;
+ modified = 1;
+ }
+ return (modified);
+}
+
+/*
+ * This function must be run as a kernel thread.
+ * It does Renew Ops and recovery, when required.
+ */
+APPLESTATIC void
+nfscl_renewthread(struct nfsclclient *clp, NFSPROC_T *p)
+{
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op;
+ struct nfscllockowner *lp, *nlp;
+ struct nfscldeleghead dh;
+ struct nfscldeleg *dp, *ndp;
+ struct ucred *cred;
+ u_int32_t clidrev;
+ int error, cbpathdown, islept, igotlock, ret, clearok;
+ uint32_t recover_done_time = 0;
+ time_t mytime;
+ static time_t prevsec = 0;
+ struct nfscllockownerfh *lfhp, *nlfhp;
+ struct nfscllockownerfhhead lfh;
+ struct nfscllayout *lyp, *nlyp;
+ struct nfscldevinfo *dip, *ndip;
+ struct nfscllayouthead rlh;
+ struct nfsclrecalllayout *recallp;
+ struct nfsclds *dsp;
+
+ cred = newnfs_getcred();
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_HASTHREAD;
+ NFSUNLOCKCLSTATE();
+ for(;;) {
+ newnfs_setroot(cred);
+ cbpathdown = 0;
+ if (clp->nfsc_flags & NFSCLFLAGS_RECOVER) {
+ /*
+ * Only allow one recover within 1/2 of the lease
+ * duration (nfsc_renew).
+ */
+ if (recover_done_time < NFSD_MONOSEC) {
+ recover_done_time = NFSD_MONOSEC +
+ clp->nfsc_renew;
+ NFSCL_DEBUG(1, "Doing recovery..\n");
+ nfscl_recover(clp, cred, p);
+ } else {
+ NFSCL_DEBUG(1, "Clear Recovery dt=%u ms=%jd\n",
+ recover_done_time, (intmax_t)NFSD_MONOSEC);
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags &= ~NFSCLFLAGS_RECOVER;
+ NFSUNLOCKCLSTATE();
+ }
+ }
+ if (clp->nfsc_expire <= NFSD_MONOSEC &&
+ (clp->nfsc_flags & NFSCLFLAGS_HASCLIENTID)) {
+ clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew;
+ clidrev = clp->nfsc_clientidrev;
+ error = nfsrpc_renew(clp, NULL, cred, p);
+ if (error == NFSERR_CBPATHDOWN)
+ cbpathdown = 1;
+ else if (error == NFSERR_STALECLIENTID ||
+ error == NFSERR_BADSESSION) {
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_RECOVER;
+ NFSUNLOCKCLSTATE();
+ } else if (error == NFSERR_EXPIRED)
+ (void) nfscl_hasexpired(clp, clidrev, p);
+ }
+
+checkdsrenew:
+ if (NFSHASNFSV4N(clp->nfsc_nmp)) {
+ /* Do renews for any DS sessions. */
+ NFSLOCKMNT(clp->nfsc_nmp);
+ /* Skip first entry, since the MDS is handled above. */
+ dsp = TAILQ_FIRST(&clp->nfsc_nmp->nm_sess);
+ if (dsp != NULL)
+ dsp = TAILQ_NEXT(dsp, nfsclds_list);
+ while (dsp != NULL) {
+ if (dsp->nfsclds_expire <= NFSD_MONOSEC &&
+ dsp->nfsclds_sess.nfsess_defunct == 0) {
+ dsp->nfsclds_expire = NFSD_MONOSEC +
+ clp->nfsc_renew;
+ NFSUNLOCKMNT(clp->nfsc_nmp);
+ (void)nfsrpc_renew(clp, dsp, cred, p);
+ goto checkdsrenew;
+ }
+ dsp = TAILQ_NEXT(dsp, nfsclds_list);
+ }
+ NFSUNLOCKMNT(clp->nfsc_nmp);
+ }
+
+ TAILQ_INIT(&dh);
+ NFSLOCKCLSTATE();
+ if (cbpathdown)
+ /* It's a Total Recall! */
+ nfscl_totalrecall(clp);
+
+ /*
+ * Now, handle defunct owners.
+ */
+ LIST_FOREACH_SAFE(owp, &clp->nfsc_owner, nfsow_list, nowp) {
+ if (LIST_EMPTY(&owp->nfsow_open)) {
+ if (owp->nfsow_defunct != 0)
+ nfscl_freeopenowner(owp, 0);
+ }
+ }
+
+ /*
+ * Do the recall on any delegations. To avoid trouble, always
+ * come back up here after having slept.
+ */
+ igotlock = 0;
+tryagain:
+ dp = TAILQ_FIRST(&clp->nfsc_deleg);
+ while (dp != NULL) {
+ ndp = TAILQ_NEXT(dp, nfsdl_list);
+ if ((dp->nfsdl_flags & NFSCLDL_RECALL)) {
+ /*
+ * Wait for outstanding I/O ops to be done.
+ */
+ if (dp->nfsdl_rwlock.nfslock_usecnt > 0) {
+ if (igotlock) {
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ }
+ dp->nfsdl_rwlock.nfslock_lock |=
+ NFSV4LOCK_WANTED;
+ (void) nfsmsleep(&dp->nfsdl_rwlock,
+ NFSCLSTATEMUTEXPTR, PZERO, "nfscld",
+ NULL);
+ goto tryagain;
+ }
+ while (!igotlock) {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1,
+ &islept, NFSCLSTATEMUTEXPTR, NULL);
+ if (islept)
+ goto tryagain;
+ }
+ NFSUNLOCKCLSTATE();
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ ret = nfscl_recalldeleg(clp, clp->nfsc_nmp, dp,
+ NULL, cred, p, 1);
+ if (!ret) {
+ nfscl_cleandeleg(dp);
+ TAILQ_REMOVE(&clp->nfsc_deleg, dp,
+ nfsdl_list);
+ LIST_REMOVE(dp, nfsdl_hash);
+ TAILQ_INSERT_HEAD(&dh, dp, nfsdl_list);
+ nfscl_delegcnt--;
+ nfsstatsv1.cldelegates--;
+ }
+ NFSLOCKCLSTATE();
+ }
+ dp = ndp;
+ }
+
+ /*
+ * Clear out old delegations, if we are above the high water
+ * mark. Only clear out ones with no state related to them.
+ * The tailq list is in LRU order.
+ */
+ dp = TAILQ_LAST(&clp->nfsc_deleg, nfscldeleghead);
+ while (nfscl_delegcnt > nfscl_deleghighwater && dp != NULL) {
+ ndp = TAILQ_PREV(dp, nfscldeleghead, nfsdl_list);
+ if (dp->nfsdl_rwlock.nfslock_usecnt == 0 &&
+ dp->nfsdl_rwlock.nfslock_lock == 0 &&
+ dp->nfsdl_timestamp < NFSD_MONOSEC &&
+ (dp->nfsdl_flags & (NFSCLDL_RECALL | NFSCLDL_ZAPPED |
+ NFSCLDL_NEEDRECLAIM | NFSCLDL_DELEGRET)) == 0) {
+ clearok = 1;
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ op = LIST_FIRST(&owp->nfsow_open);
+ if (op != NULL) {
+ clearok = 0;
+ break;
+ }
+ }
+ if (clearok) {
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!LIST_EMPTY(&lp->nfsl_lock)) {
+ clearok = 0;
+ break;
+ }
+ }
+ }
+ if (clearok) {
+ TAILQ_REMOVE(&clp->nfsc_deleg, dp, nfsdl_list);
+ LIST_REMOVE(dp, nfsdl_hash);
+ TAILQ_INSERT_HEAD(&dh, dp, nfsdl_list);
+ nfscl_delegcnt--;
+ nfsstatsv1.cldelegates--;
+ }
+ }
+ dp = ndp;
+ }
+ if (igotlock)
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+
+ /*
+ * Do the recall on any layouts. To avoid trouble, always
+ * come back up here after having slept.
+ */
+ TAILQ_INIT(&rlh);
+tryagain2:
+ TAILQ_FOREACH_SAFE(lyp, &clp->nfsc_layout, nfsly_list, nlyp) {
+ if ((lyp->nfsly_flags & NFSLY_RECALL) != 0) {
+ /*
+ * Wait for outstanding I/O ops to be done.
+ */
+ if (lyp->nfsly_lock.nfslock_usecnt > 0 ||
+ (lyp->nfsly_lock.nfslock_lock &
+ NFSV4LOCK_LOCK) != 0) {
+ lyp->nfsly_lock.nfslock_lock |=
+ NFSV4LOCK_WANTED;
+ nfsmsleep(&lyp->nfsly_lock.nfslock_lock,
+ NFSCLSTATEMUTEXPTR, PZERO, "nfslyp",
+ NULL);
+ goto tryagain2;
+ }
+ /* Move the layout to the recall list. */
+ TAILQ_REMOVE(&clp->nfsc_layout, lyp,
+ nfsly_list);
+ LIST_REMOVE(lyp, nfsly_hash);
+ TAILQ_INSERT_HEAD(&rlh, lyp, nfsly_list);
+
+ /* Handle any layout commits. */
+ if (!NFSHASNOLAYOUTCOMMIT(clp->nfsc_nmp) &&
+ (lyp->nfsly_flags & NFSLY_WRITTEN) != 0) {
+ lyp->nfsly_flags &= ~NFSLY_WRITTEN;
+ NFSUNLOCKCLSTATE();
+ NFSCL_DEBUG(3, "do layoutcommit\n");
+ nfscl_dolayoutcommit(clp->nfsc_nmp, lyp,
+ cred, p);
+ NFSLOCKCLSTATE();
+ goto tryagain2;
+ }
+ }
+ }
+
+ /* Now, look for stale layouts. */
+ lyp = TAILQ_LAST(&clp->nfsc_layout, nfscllayouthead);
+ while (lyp != NULL) {
+ nlyp = TAILQ_PREV(lyp, nfscllayouthead, nfsly_list);
+ if (lyp->nfsly_timestamp < NFSD_MONOSEC &&
+ (lyp->nfsly_flags & NFSLY_RECALL) == 0 &&
+ lyp->nfsly_lock.nfslock_usecnt == 0 &&
+ lyp->nfsly_lock.nfslock_lock == 0) {
+ NFSCL_DEBUG(4, "ret stale lay=%d\n",
+ nfscl_layoutcnt);
+ recallp = malloc(sizeof(*recallp),
+ M_NFSLAYRECALL, M_NOWAIT);
+ if (recallp == NULL)
+ break;
+ (void)nfscl_layoutrecall(NFSLAYOUTRETURN_FILE,
+ lyp, NFSLAYOUTIOMODE_ANY, 0, UINT64_MAX,
+ lyp->nfsly_stateid.seqid, 0, 0, NULL,
+ recallp);
+ }
+ lyp = nlyp;
+ }
+
+ /*
+ * Free up any unreferenced device info structures.
+ */
+ LIST_FOREACH_SAFE(dip, &clp->nfsc_devinfo, nfsdi_list, ndip) {
+ if (dip->nfsdi_layoutrefs == 0 &&
+ dip->nfsdi_refcnt == 0) {
+ NFSCL_DEBUG(4, "freeing devinfo\n");
+ LIST_REMOVE(dip, nfsdi_list);
+ nfscl_freedevinfo(dip);
+ }
+ }
+ NFSUNLOCKCLSTATE();
+
+ /* Do layout return(s), as required. */
+ TAILQ_FOREACH_SAFE(lyp, &rlh, nfsly_list, nlyp) {
+ TAILQ_REMOVE(&rlh, lyp, nfsly_list);
+ NFSCL_DEBUG(4, "ret layout\n");
+ nfscl_layoutreturn(clp->nfsc_nmp, lyp, cred, p);
+ nfscl_freelayout(lyp);
+ }
+
+ /*
+ * Delegreturn any delegations cleaned out or recalled.
+ */
+ TAILQ_FOREACH_SAFE(dp, &dh, nfsdl_list, ndp) {
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ (void) nfscl_trydelegreturn(dp, cred, clp->nfsc_nmp, p);
+ TAILQ_REMOVE(&dh, dp, nfsdl_list);
+ free(dp, M_NFSCLDELEG);
+ }
+
+ SLIST_INIT(&lfh);
+ /*
+ * Call nfscl_cleanupkext() once per second to check for
+ * open/lock owners where the process has exited.
+ */
+ mytime = NFSD_MONOSEC;
+ if (prevsec != mytime) {
+ prevsec = mytime;
+ nfscl_cleanupkext(clp, &lfh);
+ }
+
+ /*
+ * Do a ReleaseLockOwner for all lock owners where the
+ * associated process no longer exists, as found by
+ * nfscl_cleanupkext().
+ */
+ newnfs_setroot(cred);
+ SLIST_FOREACH_SAFE(lfhp, &lfh, nfslfh_list, nlfhp) {
+ LIST_FOREACH_SAFE(lp, &lfhp->nfslfh_lock, nfsl_list,
+ nlp) {
+ (void)nfsrpc_rellockown(clp->nfsc_nmp, lp,
+ lfhp->nfslfh_fh, lfhp->nfslfh_len, cred,
+ p);
+ nfscl_freelockowner(lp, 0);
+ }
+ free(lfhp, M_TEMP);
+ }
+ SLIST_INIT(&lfh);
+
+ NFSLOCKCLSTATE();
+ if ((clp->nfsc_flags & NFSCLFLAGS_RECOVER) == 0)
+ (void)mtx_sleep(clp, NFSCLSTATEMUTEXPTR, PWAIT, "nfscl",
+ hz);
+ if (clp->nfsc_flags & NFSCLFLAGS_UMOUNT) {
+ clp->nfsc_flags &= ~NFSCLFLAGS_HASTHREAD;
+ NFSUNLOCKCLSTATE();
+ NFSFREECRED(cred);
+ wakeup((caddr_t)clp);
+ return;
+ }
+ NFSUNLOCKCLSTATE();
+ }
+}
+
+/*
+ * Initiate state recovery. Called when NFSERR_STALECLIENTID,
+ * NFSERR_STALESTATEID or NFSERR_BADSESSION is received.
+ */
+APPLESTATIC void
+nfscl_initiate_recovery(struct nfsclclient *clp)
+{
+
+ if (clp == NULL)
+ return;
+ NFSLOCKCLSTATE();
+ clp->nfsc_flags |= NFSCLFLAGS_RECOVER;
+ NFSUNLOCKCLSTATE();
+ wakeup((caddr_t)clp);
+}
+
+/*
+ * Dump out the state stuff for debugging.
+ */
+APPLESTATIC void
+nfscl_dumpstate(struct nfsmount *nmp, int openowner, int opens,
+ int lockowner, int locks)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp;
+ struct nfsclopen *op;
+ struct nfscllockowner *lp;
+ struct nfscllock *lop;
+ struct nfscldeleg *dp;
+
+ clp = nmp->nm_clp;
+ if (clp == NULL) {
+ printf("nfscl dumpstate NULL clp\n");
+ return;
+ }
+ NFSLOCKCLSTATE();
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ if (openowner && !LIST_EMPTY(&owp->nfsow_open))
+ printf("owner=0x%x 0x%x 0x%x 0x%x seqid=%d\n",
+ owp->nfsow_owner[0], owp->nfsow_owner[1],
+ owp->nfsow_owner[2], owp->nfsow_owner[3],
+ owp->nfsow_seqid);
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (opens)
+ printf("open st=0x%x 0x%x 0x%x cnt=%d fh12=0x%x\n",
+ op->nfso_stateid.other[0], op->nfso_stateid.other[1],
+ op->nfso_stateid.other[2], op->nfso_opencnt,
+ op->nfso_fh[12]);
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (lockowner)
+ printf("lckown=0x%x 0x%x 0x%x 0x%x seqid=%d st=0x%x 0x%x 0x%x\n",
+ lp->nfsl_owner[0], lp->nfsl_owner[1],
+ lp->nfsl_owner[2], lp->nfsl_owner[3],
+ lp->nfsl_seqid,
+ lp->nfsl_stateid.other[0], lp->nfsl_stateid.other[1],
+ lp->nfsl_stateid.other[2]);
+ LIST_FOREACH(lop, &lp->nfsl_lock, nfslo_list) {
+ if (locks)
+#ifdef __FreeBSD__
+ printf("lck typ=%d fst=%ju end=%ju\n",
+ lop->nfslo_type, (intmax_t)lop->nfslo_first,
+ (intmax_t)lop->nfslo_end);
+#else
+ printf("lck typ=%d fst=%qd end=%qd\n",
+ lop->nfslo_type, lop->nfslo_first,
+ lop->nfslo_end);
+#endif
+ }
+ }
+ }
+ }
+ }
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ if (openowner && !LIST_EMPTY(&owp->nfsow_open))
+ printf("owner=0x%x 0x%x 0x%x 0x%x seqid=%d\n",
+ owp->nfsow_owner[0], owp->nfsow_owner[1],
+ owp->nfsow_owner[2], owp->nfsow_owner[3],
+ owp->nfsow_seqid);
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (opens)
+ printf("open st=0x%x 0x%x 0x%x cnt=%d fh12=0x%x\n",
+ op->nfso_stateid.other[0], op->nfso_stateid.other[1],
+ op->nfso_stateid.other[2], op->nfso_opencnt,
+ op->nfso_fh[12]);
+ LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) {
+ if (lockowner)
+ printf("lckown=0x%x 0x%x 0x%x 0x%x seqid=%d st=0x%x 0x%x 0x%x\n",
+ lp->nfsl_owner[0], lp->nfsl_owner[1],
+ lp->nfsl_owner[2], lp->nfsl_owner[3],
+ lp->nfsl_seqid,
+ lp->nfsl_stateid.other[0], lp->nfsl_stateid.other[1],
+ lp->nfsl_stateid.other[2]);
+ LIST_FOREACH(lop, &lp->nfsl_lock, nfslo_list) {
+ if (locks)
+#ifdef __FreeBSD__
+ printf("lck typ=%d fst=%ju end=%ju\n",
+ lop->nfslo_type, (intmax_t)lop->nfslo_first,
+ (intmax_t)lop->nfslo_end);
+#else
+ printf("lck typ=%d fst=%qd end=%qd\n",
+ lop->nfslo_type, lop->nfslo_first,
+ lop->nfslo_end);
+#endif
+ }
+ }
+ }
+ }
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Check for duplicate open owners and opens.
+ * (Only used as a diagnostic aid.)
+ */
+APPLESTATIC void
+nfscl_dupopen(vnode_t vp, int dupopens)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp, *owp2;
+ struct nfsclopen *op, *op2;
+ struct nfsfh *nfhp;
+
+ clp = VFSTONFS(vnode_mount(vp))->nm_clp;
+ if (clp == NULL) {
+ printf("nfscl dupopen NULL clp\n");
+ return;
+ }
+ nfhp = VTONFS(vp)->n_fhp;
+ NFSLOCKCLSTATE();
+
+ /*
+ * First, search for duplicate owners.
+ * These should never happen!
+ */
+ LIST_FOREACH(owp2, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ if (owp != owp2 &&
+ !NFSBCMP(owp->nfsow_owner, owp2->nfsow_owner,
+ NFSV4CL_LOCKNAMELEN)) {
+ NFSUNLOCKCLSTATE();
+ printf("DUP OWNER\n");
+ nfscl_dumpstate(VFSTONFS(vnode_mount(vp)), 1, 1, 0, 0);
+ return;
+ }
+ }
+ }
+
+ /*
+ * Now, search for duplicate stateids.
+ * These shouldn't happen, either.
+ */
+ LIST_FOREACH(owp2, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op2, &owp2->nfsow_open, nfso_list) {
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op != op2 &&
+ (op->nfso_stateid.other[0] != 0 ||
+ op->nfso_stateid.other[1] != 0 ||
+ op->nfso_stateid.other[2] != 0) &&
+ op->nfso_stateid.other[0] == op2->nfso_stateid.other[0] &&
+ op->nfso_stateid.other[1] == op2->nfso_stateid.other[1] &&
+ op->nfso_stateid.other[2] == op2->nfso_stateid.other[2]) {
+ NFSUNLOCKCLSTATE();
+ printf("DUP STATEID\n");
+ nfscl_dumpstate(VFSTONFS(vnode_mount(vp)), 1, 1, 0,
+ 0);
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * Now search for duplicate opens.
+ * Duplicate opens for the same owner
+ * should never occur. Other duplicates are
+ * possible and are checked for if "dupopens"
+ * is true.
+ */
+ LIST_FOREACH(owp2, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op2, &owp2->nfsow_open, nfso_list) {
+ if (nfhp->nfh_len == op2->nfso_fhlen &&
+ !NFSBCMP(nfhp->nfh_fh, op2->nfso_fh, nfhp->nfh_len)) {
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op != op2 && nfhp->nfh_len == op->nfso_fhlen &&
+ !NFSBCMP(nfhp->nfh_fh, op->nfso_fh, nfhp->nfh_len) &&
+ (!NFSBCMP(op->nfso_own->nfsow_owner,
+ op2->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN) ||
+ dupopens)) {
+ if (!NFSBCMP(op->nfso_own->nfsow_owner,
+ op2->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN)) {
+ NFSUNLOCKCLSTATE();
+ printf("BADDUP OPEN\n");
+ } else {
+ NFSUNLOCKCLSTATE();
+ printf("DUP OPEN\n");
+ }
+ nfscl_dumpstate(VFSTONFS(vnode_mount(vp)), 1, 1,
+ 0, 0);
+ return;
+ }
+ }
+ }
+ }
+ }
+ }
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * During close, find an open that needs to be dereferenced and
+ * dereference it. If there are no more opens for this file,
+ * log a message to that effect.
+ * Opens aren't actually Close'd until VOP_INACTIVE() is performed
+ * on the file's vnode.
+ * This is the safe way, since it is difficult to identify
+ * which open the close is for and I/O can be performed after the
+ * close(2) system call when a file is mmap'd.
+ * If it returns 0 for success, there will be a referenced
+ * clp returned via clpp.
+ */
+APPLESTATIC int
+nfscl_getclose(vnode_t vp, struct nfsclclient **clpp)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp;
+ struct nfsclopen *op;
+ struct nfscldeleg *dp;
+ struct nfsfh *nfhp;
+ int error, notdecr;
+
+ error = nfscl_getcl(vnode_mount(vp), NULL, NULL, 1, &clp);
+ if (error)
+ return (error);
+ *clpp = clp;
+
+ nfhp = VTONFS(vp)->n_fhp;
+ notdecr = 1;
+ NFSLOCKCLSTATE();
+ /*
+ * First, look for one under a delegation that was locally issued
+ * and just decrement the opencnt for it. Since all my Opens against
+ * the server are DENY_NONE, I don't see a problem with hanging
+ * onto them. (It is much easier to use one of the extant Opens
+ * that I already have on the server when a Delegation is recalled
+ * than to do fresh Opens.) Someday, I might need to rethink this, but.
+ */
+ dp = nfscl_finddeleg(clp, nfhp->nfh_fh, nfhp->nfh_len);
+ if (dp != NULL) {
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ op = LIST_FIRST(&owp->nfsow_open);
+ if (op != NULL) {
+ /*
+ * Since a delegation is for a file, there
+ * should never be more than one open for
+ * each openowner.
+ */
+ if (LIST_NEXT(op, nfso_list) != NULL)
+ panic("nfscdeleg opens");
+ if (notdecr && op->nfso_opencnt > 0) {
+ notdecr = 0;
+ op->nfso_opencnt--;
+ break;
+ }
+ }
+ }
+ }
+
+ /* Now process the opens against the server. */
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == nfhp->nfh_len &&
+ !NFSBCMP(op->nfso_fh, nfhp->nfh_fh,
+ nfhp->nfh_len)) {
+ /* Found an open, decrement cnt if possible */
+ if (notdecr && op->nfso_opencnt > 0) {
+ notdecr = 0;
+ op->nfso_opencnt--;
+ }
+ /*
+ * There are more opens, so just return.
+ */
+ if (op->nfso_opencnt > 0) {
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ }
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ if (notdecr)
+ printf("nfscl: never fnd open\n");
+ return (0);
+}
+
+APPLESTATIC int
+nfscl_doclose(vnode_t vp, struct nfsclclient **clpp, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ struct nfsclowner *owp, *nowp;
+ struct nfsclopen *op;
+ struct nfscldeleg *dp;
+ struct nfsfh *nfhp;
+ struct nfsclrecalllayout *recallp;
+ int error;
+
+ error = nfscl_getcl(vnode_mount(vp), NULL, NULL, 1, &clp);
+ if (error)
+ return (error);
+ *clpp = clp;
+
+ nfhp = VTONFS(vp)->n_fhp;
+ recallp = malloc(sizeof(*recallp), M_NFSLAYRECALL, M_WAITOK);
+ NFSLOCKCLSTATE();
+ /*
+ * First get rid of the local Open structures, which should be no
+ * longer in use.
+ */
+ dp = nfscl_finddeleg(clp, nfhp->nfh_fh, nfhp->nfh_len);
+ if (dp != NULL) {
+ LIST_FOREACH_SAFE(owp, &dp->nfsdl_owner, nfsow_list, nowp) {
+ op = LIST_FIRST(&owp->nfsow_open);
+ if (op != NULL) {
+ KASSERT((op->nfso_opencnt == 0),
+ ("nfscl: bad open cnt on deleg"));
+ nfscl_freeopen(op, 1);
+ }
+ nfscl_freeopenowner(owp, 1);
+ }
+ }
+
+ /* Return any layouts marked return on close. */
+ nfscl_retoncloselayout(vp, clp, nfhp->nfh_fh, nfhp->nfh_len, &recallp);
+
+ /* Now process the opens against the server. */
+lookformore:
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ op = LIST_FIRST(&owp->nfsow_open);
+ while (op != NULL) {
+ if (op->nfso_fhlen == nfhp->nfh_len &&
+ !NFSBCMP(op->nfso_fh, nfhp->nfh_fh,
+ nfhp->nfh_len)) {
+ /* Found an open, close it. */
+ KASSERT((op->nfso_opencnt == 0),
+ ("nfscl: bad open cnt on server"));
+ NFSUNLOCKCLSTATE();
+ nfsrpc_doclose(VFSTONFS(vnode_mount(vp)), op,
+ p);
+ NFSLOCKCLSTATE();
+ goto lookformore;
+ }
+ op = LIST_NEXT(op, nfso_list);
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ /*
+ * recallp has been set NULL by nfscl_retoncloselayout() if it was
+ * used by the function, but calling free() with a NULL pointer is ok.
+ */
+ free(recallp, M_NFSLAYRECALL);
+ return (0);
+}
+
+/*
+ * Return all delegations on this client.
+ * (Must be called with client sleep lock.)
+ */
+static void
+nfscl_delegreturnall(struct nfsclclient *clp, NFSPROC_T *p)
+{
+ struct nfscldeleg *dp, *ndp;
+ struct ucred *cred;
+
+ cred = newnfs_getcred();
+ TAILQ_FOREACH_SAFE(dp, &clp->nfsc_deleg, nfsdl_list, ndp) {
+ nfscl_cleandeleg(dp);
+ (void) nfscl_trydelegreturn(dp, cred, clp->nfsc_nmp, p);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ }
+ NFSFREECRED(cred);
+}
+
+/*
+ * Do a callback RPC.
+ */
+APPLESTATIC void
+nfscl_docb(struct nfsrv_descript *nd, NFSPROC_T *p)
+{
+ int clist, gotseq_ok, i, j, k, op, rcalls;
+ u_int32_t *tl;
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp = NULL;
+ int numops, taglen = -1, error = 0, trunc __unused;
+ u_int32_t minorvers = 0, retops = 0, *retopsp = NULL, *repp, cbident;
+ u_char tag[NFSV4_SMALLSTR + 1], *tagstr;
+ vnode_t vp = NULL;
+ struct nfsnode *np;
+ struct vattr va;
+ struct nfsfh *nfhp;
+ mount_t mp;
+ nfsattrbit_t attrbits, rattrbits;
+ nfsv4stateid_t stateid;
+ uint32_t seqid, slotid = 0, highslot, cachethis __unused;
+ uint8_t sessionid[NFSX_V4SESSIONID];
+ struct mbuf *rep;
+ struct nfscllayout *lyp;
+ uint64_t filesid[2], len, off;
+ int changed, gotone, laytype, recalltype;
+ uint32_t iomode;
+ struct nfsclrecalllayout *recallp = NULL;
+ struct nfsclsession *tsep;
+
+ gotseq_ok = 0;
+ nfsrvd_rephead(nd);
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ taglen = fxdr_unsigned(int, *tl);
+ if (taglen < 0) {
+ error = EBADRPC;
+ goto nfsmout;
+ }
+ if (taglen <= NFSV4_SMALLSTR)
+ tagstr = tag;
+ else
+ tagstr = malloc(taglen + 1, M_TEMP, M_WAITOK);
+ error = nfsrv_mtostr(nd, tagstr, taglen);
+ if (error) {
+ if (taglen > NFSV4_SMALLSTR)
+ free(tagstr, M_TEMP);
+ taglen = -1;
+ goto nfsmout;
+ }
+ (void) nfsm_strtom(nd, tag, taglen);
+ if (taglen > NFSV4_SMALLSTR) {
+ free(tagstr, M_TEMP);
+ }
+ NFSM_BUILD(retopsp, u_int32_t *, NFSX_UNSIGNED);
+ NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
+ minorvers = fxdr_unsigned(u_int32_t, *tl++);
+ if (minorvers != NFSV4_MINORVERSION && minorvers != NFSV41_MINORVERSION)
+ nd->nd_repstat = NFSERR_MINORVERMISMATCH;
+ cbident = fxdr_unsigned(u_int32_t, *tl++);
+ if (nd->nd_repstat)
+ numops = 0;
+ else
+ numops = fxdr_unsigned(int, *tl);
+ /*
+ * Loop around doing the sub ops.
+ */
+ for (i = 0; i < numops; i++) {
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
+ NFSM_BUILD(repp, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *repp++ = *tl;
+ op = fxdr_unsigned(int, *tl);
+ if (op < NFSV4OP_CBGETATTR ||
+ (op > NFSV4OP_CBRECALL && minorvers == NFSV4_MINORVERSION) ||
+ (op > NFSV4OP_CBNOTIFYDEVID &&
+ minorvers == NFSV41_MINORVERSION)) {
+ nd->nd_repstat = NFSERR_OPILLEGAL;
+ *repp = nfscl_errmap(nd, minorvers);
+ retops++;
+ break;
+ }
+ nd->nd_procnum = op;
+ if (op < NFSV41_CBNOPS)
+ nfsstatsv1.cbrpccnt[nd->nd_procnum]++;
+ switch (op) {
+ case NFSV4OP_CBGETATTR:
+ NFSCL_DEBUG(4, "cbgetattr\n");
+ mp = NULL;
+ vp = NULL;
+ error = nfsm_getfh(nd, &nfhp);
+ if (!error)
+ error = nfsrv_getattrbits(nd, &attrbits,
+ NULL, NULL);
+ if (error == 0 && i == 0 &&
+ minorvers != NFSV4_MINORVERSION)
+ error = NFSERR_OPNOTINSESS;
+ if (!error) {
+ mp = nfscl_getmnt(minorvers, sessionid, cbident,
+ &clp);
+ if (mp == NULL)
+ error = NFSERR_SERVERFAULT;
+ }
+ if (!error) {
+ error = nfscl_ngetreopen(mp, nfhp->nfh_fh,
+ nfhp->nfh_len, p, &np);
+ if (!error)
+ vp = NFSTOV(np);
+ }
+ if (!error) {
+ NFSZERO_ATTRBIT(&rattrbits);
+ NFSLOCKCLSTATE();
+ dp = nfscl_finddeleg(clp, nfhp->nfh_fh,
+ nfhp->nfh_len);
+ if (dp != NULL) {
+ if (NFSISSET_ATTRBIT(&attrbits,
+ NFSATTRBIT_SIZE)) {
+ if (vp != NULL)
+ va.va_size = np->n_size;
+ else
+ va.va_size =
+ dp->nfsdl_size;
+ NFSSETBIT_ATTRBIT(&rattrbits,
+ NFSATTRBIT_SIZE);
+ }
+ if (NFSISSET_ATTRBIT(&attrbits,
+ NFSATTRBIT_CHANGE)) {
+ va.va_filerev =
+ dp->nfsdl_change;
+ if (vp == NULL ||
+ (np->n_flag & NDELEGMOD))
+ va.va_filerev++;
+ NFSSETBIT_ATTRBIT(&rattrbits,
+ NFSATTRBIT_CHANGE);
+ }
+ } else
+ error = NFSERR_SERVERFAULT;
+ NFSUNLOCKCLSTATE();
+ }
+ if (vp != NULL)
+ vrele(vp);
+ if (mp != NULL)
+ vfs_unbusy(mp);
+ if (nfhp != NULL)
+ free(nfhp, M_NFSFH);
+ if (!error)
+ (void) nfsv4_fillattr(nd, NULL, NULL, NULL, &va,
+ NULL, 0, &rattrbits, NULL, p, 0, 0, 0, 0,
+ (uint64_t)0, NULL);
+ break;
+ case NFSV4OP_CBRECALL:
+ NFSCL_DEBUG(4, "cbrecall\n");
+ NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID +
+ NFSX_UNSIGNED);
+ stateid.seqid = *tl++;
+ NFSBCOPY((caddr_t)tl, (caddr_t)stateid.other,
+ NFSX_STATEIDOTHER);
+ tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
+ trunc = fxdr_unsigned(int, *tl);
+ error = nfsm_getfh(nd, &nfhp);
+ if (error == 0 && i == 0 &&
+ minorvers != NFSV4_MINORVERSION)
+ error = NFSERR_OPNOTINSESS;
+ if (!error) {
+ NFSLOCKCLSTATE();
+ if (minorvers == NFSV4_MINORVERSION)
+ clp = nfscl_getclnt(cbident);
+ else
+ clp = nfscl_getclntsess(sessionid);
+ if (clp != NULL) {
+ dp = nfscl_finddeleg(clp, nfhp->nfh_fh,
+ nfhp->nfh_len);
+ if (dp != NULL && (dp->nfsdl_flags &
+ NFSCLDL_DELEGRET) == 0) {
+ dp->nfsdl_flags |=
+ NFSCLDL_RECALL;
+ wakeup((caddr_t)clp);
+ }
+ } else {
+ error = NFSERR_SERVERFAULT;
+ }
+ NFSUNLOCKCLSTATE();
+ }
+ if (nfhp != NULL)
+ free(nfhp, M_NFSFH);
+ break;
+ case NFSV4OP_CBLAYOUTRECALL:
+ NFSCL_DEBUG(4, "cblayrec\n");
+ nfhp = NULL;
+ NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED);
+ laytype = fxdr_unsigned(int, *tl++);
+ iomode = fxdr_unsigned(uint32_t, *tl++);
+ if (newnfs_true == *tl++)
+ changed = 1;
+ else
+ changed = 0;
+ recalltype = fxdr_unsigned(int, *tl);
+ NFSCL_DEBUG(4, "layt=%d iom=%d ch=%d rectyp=%d\n",
+ laytype, iomode, changed, recalltype);
+ recallp = malloc(sizeof(*recallp), M_NFSLAYRECALL,
+ M_WAITOK);
+ if (laytype != NFSLAYOUT_NFSV4_1_FILES &&
+ laytype != NFSLAYOUT_FLEXFILE)
+ error = NFSERR_NOMATCHLAYOUT;
+ else if (recalltype == NFSLAYOUTRETURN_FILE) {
+ error = nfsm_getfh(nd, &nfhp);
+ NFSCL_DEBUG(4, "retfile getfh=%d\n", error);
+ if (error != 0)
+ goto nfsmout;
+ NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_HYPER +
+ NFSX_STATEID);
+ off = fxdr_hyper(tl); tl += 2;
+ len = fxdr_hyper(tl); tl += 2;
+ stateid.seqid = fxdr_unsigned(uint32_t, *tl++);
+ NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER);
+ if (minorvers == NFSV4_MINORVERSION)
+ error = NFSERR_NOTSUPP;
+ else if (i == 0)
+ error = NFSERR_OPNOTINSESS;
+ NFSCL_DEBUG(4, "off=%ju len=%ju sq=%u err=%d\n",
+ (uintmax_t)off, (uintmax_t)len,
+ stateid.seqid, error);
+ if (error == 0) {
+ NFSLOCKCLSTATE();
+ clp = nfscl_getclntsess(sessionid);
+ NFSCL_DEBUG(4, "cbly clp=%p\n", clp);
+ if (clp != NULL) {
+ lyp = nfscl_findlayout(clp,
+ nfhp->nfh_fh,
+ nfhp->nfh_len);
+ NFSCL_DEBUG(4, "cblyp=%p\n",
+ lyp);
+ if (lyp != NULL &&
+ (lyp->nfsly_flags &
+ (NFSLY_FILES |
+ NFSLY_FLEXFILE)) != 0 &&
+ !NFSBCMP(stateid.other,
+ lyp->nfsly_stateid.other,
+ NFSX_STATEIDOTHER)) {
+ error =
+ nfscl_layoutrecall(
+ recalltype,
+ lyp, iomode, off,
+ len, stateid.seqid,
+ 0, 0, NULL,
+ recallp);
+ recallp = NULL;
+ wakeup(clp);
+ NFSCL_DEBUG(4,
+ "aft layrcal=%d\n",
+ error);
+ } else
+ error =
+ NFSERR_NOMATCHLAYOUT;
+ } else
+ error = NFSERR_NOMATCHLAYOUT;
+ NFSUNLOCKCLSTATE();
+ }
+ free(nfhp, M_NFSFH);
+ } else if (recalltype == NFSLAYOUTRETURN_FSID) {
+ NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_HYPER);
+ filesid[0] = fxdr_hyper(tl); tl += 2;
+ filesid[1] = fxdr_hyper(tl); tl += 2;
+ gotone = 0;
+ NFSLOCKCLSTATE();
+ clp = nfscl_getclntsess(sessionid);
+ if (clp != NULL) {
+ TAILQ_FOREACH(lyp, &clp->nfsc_layout,
+ nfsly_list) {
+ if (lyp->nfsly_filesid[0] ==
+ filesid[0] &&
+ lyp->nfsly_filesid[1] ==
+ filesid[1]) {
+ error =
+ nfscl_layoutrecall(
+ recalltype,
+ lyp, iomode, 0,
+ UINT64_MAX,
+ lyp->nfsly_stateid.seqid,
+ 0, 0, NULL,
+ recallp);
+ recallp = NULL;
+ gotone = 1;
+ }
+ }
+ if (gotone != 0)
+ wakeup(clp);
+ else
+ error = NFSERR_NOMATCHLAYOUT;
+ } else
+ error = NFSERR_NOMATCHLAYOUT;
+ NFSUNLOCKCLSTATE();
+ } else if (recalltype == NFSLAYOUTRETURN_ALL) {
+ gotone = 0;
+ NFSLOCKCLSTATE();
+ clp = nfscl_getclntsess(sessionid);
+ if (clp != NULL) {
+ TAILQ_FOREACH(lyp, &clp->nfsc_layout,
+ nfsly_list) {
+ error = nfscl_layoutrecall(
+ recalltype, lyp, iomode, 0,
+ UINT64_MAX,
+ lyp->nfsly_stateid.seqid,
+ 0, 0, NULL, recallp);
+ recallp = NULL;
+ gotone = 1;
+ }
+ if (gotone != 0)
+ wakeup(clp);
+ else
+ error = NFSERR_NOMATCHLAYOUT;
+ } else
+ error = NFSERR_NOMATCHLAYOUT;
+ NFSUNLOCKCLSTATE();
+ } else
+ error = NFSERR_NOMATCHLAYOUT;
+ if (recallp != NULL) {
+ free(recallp, M_NFSLAYRECALL);
+ recallp = NULL;
+ }
+ break;
+ case NFSV4OP_CBSEQUENCE:
+ NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID +
+ 5 * NFSX_UNSIGNED);
+ bcopy(tl, sessionid, NFSX_V4SESSIONID);
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ seqid = fxdr_unsigned(uint32_t, *tl++);
+ slotid = fxdr_unsigned(uint32_t, *tl++);
+ highslot = fxdr_unsigned(uint32_t, *tl++);
+ cachethis = *tl++;
+ /* Throw away the referring call stuff. */
+ clist = fxdr_unsigned(int, *tl);
+ for (j = 0; j < clist; j++) {
+ NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID +
+ NFSX_UNSIGNED);
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ rcalls = fxdr_unsigned(int, *tl);
+ for (k = 0; k < rcalls; k++) {
+ NFSM_DISSECT(tl, uint32_t *,
+ 2 * NFSX_UNSIGNED);
+ }
+ }
+ NFSLOCKCLSTATE();
+ if (i == 0) {
+ clp = nfscl_getclntsess(sessionid);
+ if (clp == NULL)
+ error = NFSERR_SERVERFAULT;
+ } else
+ error = NFSERR_SEQUENCEPOS;
+ if (error == 0) {
+ tsep = nfsmnt_mdssession(clp->nfsc_nmp);
+ error = nfsv4_seqsession(seqid, slotid,
+ highslot, tsep->nfsess_cbslots, &rep,
+ tsep->nfsess_backslots);
+ }
+ NFSUNLOCKCLSTATE();
+ if (error == 0 || error == NFSERR_REPLYFROMCACHE) {
+ gotseq_ok = 1;
+ if (rep != NULL) {
+ /*
+ * Handle a reply for a retried
+ * callback. The reply will be
+ * re-inserted in the session cache
+ * by the nfsv4_seqsess_cacherep() call
+ * after out:
+ */
+ KASSERT(error == NFSERR_REPLYFROMCACHE,
+ ("cbsequence: non-NULL rep"));
+ NFSCL_DEBUG(4, "Got cbretry\n");
+ m_freem(nd->nd_mreq);
+ nd->nd_mreq = rep;
+ rep = NULL;
+ goto out;
+ }
+ NFSM_BUILD(tl, uint32_t *,
+ NFSX_V4SESSIONID + 4 * NFSX_UNSIGNED);
+ bcopy(sessionid, tl, NFSX_V4SESSIONID);
+ tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
+ *tl++ = txdr_unsigned(seqid);
+ *tl++ = txdr_unsigned(slotid);
+ *tl++ = txdr_unsigned(NFSV4_CBSLOTS - 1);
+ *tl = txdr_unsigned(NFSV4_CBSLOTS - 1);
+ }
+ break;
+ default:
+ if (i == 0 && minorvers == NFSV41_MINORVERSION)
+ error = NFSERR_OPNOTINSESS;
+ else {
+ NFSCL_DEBUG(1, "unsupp callback %d\n", op);
+ error = NFSERR_NOTSUPP;
+ }
+ break;
+ }
+ if (error) {
+ if (error == EBADRPC || error == NFSERR_BADXDR) {
+ nd->nd_repstat = NFSERR_BADXDR;
+ } else {
+ nd->nd_repstat = error;
+ }
+ error = 0;
+ }
+ retops++;
+ if (nd->nd_repstat) {
+ *repp = nfscl_errmap(nd, minorvers);
+ break;
+ } else
+ *repp = 0; /* NFS4_OK */
+ }
+nfsmout:
+ if (recallp != NULL)
+ free(recallp, M_NFSLAYRECALL);
+ if (error) {
+ if (error == EBADRPC || error == NFSERR_BADXDR)
+ nd->nd_repstat = NFSERR_BADXDR;
+ else
+ printf("nfsv4 comperr1=%d\n", error);
+ }
+ if (taglen == -1) {
+ NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
+ *tl++ = 0;
+ *tl = 0;
+ } else {
+ *retopsp = txdr_unsigned(retops);
+ }
+ *nd->nd_errp = nfscl_errmap(nd, minorvers);
+out:
+ if (gotseq_ok != 0) {
+ rep = m_copym(nd->nd_mreq, 0, M_COPYALL, M_WAITOK);
+ NFSLOCKCLSTATE();
+ clp = nfscl_getclntsess(sessionid);
+ if (clp != NULL) {
+ tsep = nfsmnt_mdssession(clp->nfsc_nmp);
+ nfsv4_seqsess_cacherep(slotid, tsep->nfsess_cbslots,
+ NFSERR_OK, &rep);
+ NFSUNLOCKCLSTATE();
+ } else {
+ NFSUNLOCKCLSTATE();
+ m_freem(rep);
+ }
+ }
+}
+
+/*
+ * Generate the next cbident value. Basically just increment a static value
+ * and then check that it isn't already in the list, if it has wrapped around.
+ */
+static u_int32_t
+nfscl_nextcbident(void)
+{
+ struct nfsclclient *clp;
+ int matched;
+ static u_int32_t nextcbident = 0;
+ static int haswrapped = 0;
+
+ nextcbident++;
+ if (nextcbident == 0)
+ haswrapped = 1;
+ if (haswrapped) {
+ /*
+ * Search the clientid list for one already using this cbident.
+ */
+ do {
+ matched = 0;
+ NFSLOCKCLSTATE();
+ LIST_FOREACH(clp, &nfsclhead, nfsc_list) {
+ if (clp->nfsc_cbident == nextcbident) {
+ matched = 1;
+ break;
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ if (matched == 1)
+ nextcbident++;
+ } while (matched);
+ }
+ return (nextcbident);
+}
+
+/*
+ * Get the mount point related to a given cbident or session and busy it.
+ */
+static mount_t
+nfscl_getmnt(int minorvers, uint8_t *sessionid, u_int32_t cbident,
+ struct nfsclclient **clpp)
+{
+ struct nfsclclient *clp;
+ mount_t mp;
+ int error;
+ struct nfsclsession *tsep;
+
+ *clpp = NULL;
+ NFSLOCKCLSTATE();
+ LIST_FOREACH(clp, &nfsclhead, nfsc_list) {
+ tsep = nfsmnt_mdssession(clp->nfsc_nmp);
+ if (minorvers == NFSV4_MINORVERSION) {
+ if (clp->nfsc_cbident == cbident)
+ break;
+ } else if (!NFSBCMP(tsep->nfsess_sessionid, sessionid,
+ NFSX_V4SESSIONID))
+ break;
+ }
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (NULL);
+ }
+ mp = clp->nfsc_nmp->nm_mountp;
+ vfs_ref(mp);
+ NFSUNLOCKCLSTATE();
+ error = vfs_busy(mp, 0);
+ vfs_rel(mp);
+ if (error != 0)
+ return (NULL);
+ *clpp = clp;
+ return (mp);
+}
+
+/*
+ * Get the clientid pointer related to a given cbident.
+ */
+static struct nfsclclient *
+nfscl_getclnt(u_int32_t cbident)
+{
+ struct nfsclclient *clp;
+
+ LIST_FOREACH(clp, &nfsclhead, nfsc_list)
+ if (clp->nfsc_cbident == cbident)
+ break;
+ return (clp);
+}
+
+/*
+ * Get the clientid pointer related to a given sessionid.
+ */
+static struct nfsclclient *
+nfscl_getclntsess(uint8_t *sessionid)
+{
+ struct nfsclclient *clp;
+ struct nfsclsession *tsep;
+
+ LIST_FOREACH(clp, &nfsclhead, nfsc_list) {
+ tsep = nfsmnt_mdssession(clp->nfsc_nmp);
+ if (!NFSBCMP(tsep->nfsess_sessionid, sessionid,
+ NFSX_V4SESSIONID))
+ break;
+ }
+ return (clp);
+}
+
+/*
+ * Search for a lock conflict locally on the client. A conflict occurs if
+ * - not same owner and overlapping byte range and at least one of them is
+ * a write lock or this is an unlock.
+ */
+static int
+nfscl_localconflict(struct nfsclclient *clp, u_int8_t *fhp, int fhlen,
+ struct nfscllock *nlop, u_int8_t *own, struct nfscldeleg *dp,
+ struct nfscllock **lopp)
+{
+ struct nfsclowner *owp;
+ struct nfsclopen *op;
+ int ret;
+
+ if (dp != NULL) {
+ ret = nfscl_checkconflict(&dp->nfsdl_lock, nlop, own, lopp);
+ if (ret)
+ return (ret);
+ }
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if (op->nfso_fhlen == fhlen &&
+ !NFSBCMP(op->nfso_fh, fhp, fhlen)) {
+ ret = nfscl_checkconflict(&op->nfso_lock, nlop,
+ own, lopp);
+ if (ret)
+ return (ret);
+ }
+ }
+ }
+ return (0);
+}
+
+static int
+nfscl_checkconflict(struct nfscllockownerhead *lhp, struct nfscllock *nlop,
+ u_int8_t *own, struct nfscllock **lopp)
+{
+ struct nfscllockowner *lp;
+ struct nfscllock *lop;
+
+ LIST_FOREACH(lp, lhp, nfsl_list) {
+ if (NFSBCMP(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN)) {
+ LIST_FOREACH(lop, &lp->nfsl_lock, nfslo_list) {
+ if (lop->nfslo_first >= nlop->nfslo_end)
+ break;
+ if (lop->nfslo_end <= nlop->nfslo_first)
+ continue;
+ if (lop->nfslo_type == F_WRLCK ||
+ nlop->nfslo_type == F_WRLCK ||
+ nlop->nfslo_type == F_UNLCK) {
+ if (lopp != NULL)
+ *lopp = lop;
+ return (NFSERR_DENIED);
+ }
+ }
+ }
+ }
+ return (0);
+}
+
+/*
+ * Check for a local conflicting lock.
+ */
+APPLESTATIC int
+nfscl_lockt(vnode_t vp, struct nfsclclient *clp, u_int64_t off,
+ u_int64_t len, struct flock *fl, NFSPROC_T *p, void *id, int flags)
+{
+ struct nfscllock *lop, nlck;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ u_int8_t own[NFSV4CL_LOCKNAMELEN];
+ int error;
+
+ nlck.nfslo_type = fl->l_type;
+ nlck.nfslo_first = off;
+ if (len == NFS64BITSSET) {
+ nlck.nfslo_end = NFS64BITSSET;
+ } else {
+ nlck.nfslo_end = off + len;
+ if (nlck.nfslo_end <= nlck.nfslo_first)
+ return (NFSERR_INVAL);
+ }
+ np = VTONFS(vp);
+ nfscl_filllockowner(id, own, flags);
+ NFSLOCKCLSTATE();
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ error = nfscl_localconflict(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len,
+ &nlck, own, dp, &lop);
+ if (error != 0) {
+ fl->l_whence = SEEK_SET;
+ fl->l_start = lop->nfslo_first;
+ if (lop->nfslo_end == NFS64BITSSET)
+ fl->l_len = 0;
+ else
+ fl->l_len = lop->nfslo_end - lop->nfslo_first;
+ fl->l_pid = (pid_t)0;
+ fl->l_type = lop->nfslo_type;
+ error = -1; /* no RPC required */
+ } else if (dp != NULL && ((dp->nfsdl_flags & NFSCLDL_WRITE) ||
+ fl->l_type == F_RDLCK)) {
+ /*
+ * The delegation ensures that there isn't a conflicting
+ * lock on the server, so return -1 to indicate an RPC
+ * isn't required.
+ */
+ fl->l_type = F_UNLCK;
+ error = -1;
+ }
+ NFSUNLOCKCLSTATE();
+ return (error);
+}
+
+/*
+ * Handle Recall of a delegation.
+ * The clp must be exclusive locked when this is called.
+ */
+static int
+nfscl_recalldeleg(struct nfsclclient *clp, struct nfsmount *nmp,
+ struct nfscldeleg *dp, vnode_t vp, struct ucred *cred, NFSPROC_T *p,
+ int called_from_renewthread)
+{
+ struct nfsclowner *owp, *lowp, *nowp;
+ struct nfsclopen *op, *lop;
+ struct nfscllockowner *lp;
+ struct nfscllock *lckp;
+ struct nfsnode *np;
+ int error = 0, ret, gotvp = 0;
+
+ if (vp == NULL) {
+ /*
+ * First, get a vnode for the file. This is needed to do RPCs.
+ */
+ ret = nfscl_ngetreopen(nmp->nm_mountp, dp->nfsdl_fh,
+ dp->nfsdl_fhlen, p, &np);
+ if (ret) {
+ /*
+ * File isn't open, so nothing to move over to the
+ * server.
+ */
+ return (0);
+ }
+ vp = NFSTOV(np);
+ gotvp = 1;
+ } else {
+ np = VTONFS(vp);
+ }
+ dp->nfsdl_flags &= ~NFSCLDL_MODTIMESET;
+
+ /*
+ * Ok, if it's a write delegation, flush data to the server, so
+ * that close/open consistency is retained.
+ */
+ ret = 0;
+ NFSLOCKNODE(np);
+ if ((dp->nfsdl_flags & NFSCLDL_WRITE) && (np->n_flag & NMODIFIED)) {
+ np->n_flag |= NDELEGRECALL;
+ NFSUNLOCKNODE(np);
+ ret = ncl_flush(vp, MNT_WAIT, p, 1, called_from_renewthread);
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDELEGRECALL;
+ }
+ NFSINVALATTRCACHE(np);
+ NFSUNLOCKNODE(np);
+ if (ret == EIO && called_from_renewthread != 0) {
+ /*
+ * If the flush failed with EIO for the renew thread,
+ * return now, so that the dirty buffer will be flushed
+ * later.
+ */
+ if (gotvp != 0)
+ vrele(vp);
+ return (ret);
+ }
+
+ /*
+ * Now, for each openowner with opens issued locally, move them
+ * over to state against the server.
+ */
+ LIST_FOREACH(lowp, &dp->nfsdl_owner, nfsow_list) {
+ lop = LIST_FIRST(&lowp->nfsow_open);
+ if (lop != NULL) {
+ if (LIST_NEXT(lop, nfso_list) != NULL)
+ panic("nfsdlg mult opens");
+ /*
+ * Look for the same openowner against the server.
+ */
+ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) {
+ if (!NFSBCMP(lowp->nfsow_owner,
+ owp->nfsow_owner, NFSV4CL_LOCKNAMELEN)) {
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ ret = nfscl_moveopen(vp, clp, nmp, lop,
+ owp, dp, cred, p);
+ if (ret == NFSERR_STALECLIENTID ||
+ ret == NFSERR_STALEDONTRECOVER ||
+ ret == NFSERR_BADSESSION) {
+ if (gotvp)
+ vrele(vp);
+ return (ret);
+ }
+ if (ret) {
+ nfscl_freeopen(lop, 1);
+ if (!error)
+ error = ret;
+ }
+ break;
+ }
+ }
+
+ /*
+ * If no openowner found, create one and get an open
+ * for it.
+ */
+ if (owp == NULL) {
+ nowp = malloc(
+ sizeof (struct nfsclowner), M_NFSCLOWNER,
+ M_WAITOK);
+ nfscl_newopen(clp, NULL, &owp, &nowp, &op,
+ NULL, lowp->nfsow_owner, dp->nfsdl_fh,
+ dp->nfsdl_fhlen, NULL, NULL);
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ ret = nfscl_moveopen(vp, clp, nmp, lop,
+ owp, dp, cred, p);
+ if (ret) {
+ nfscl_freeopenowner(owp, 0);
+ if (ret == NFSERR_STALECLIENTID ||
+ ret == NFSERR_STALEDONTRECOVER ||
+ ret == NFSERR_BADSESSION) {
+ if (gotvp)
+ vrele(vp);
+ return (ret);
+ }
+ if (ret) {
+ nfscl_freeopen(lop, 1);
+ if (!error)
+ error = ret;
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * Now, get byte range locks for any locks done locally.
+ */
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ LIST_FOREACH(lckp, &lp->nfsl_lock, nfslo_list) {
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ ret = nfscl_relock(vp, clp, nmp, lp, lckp, cred, p);
+ if (ret == NFSERR_STALESTATEID ||
+ ret == NFSERR_STALEDONTRECOVER ||
+ ret == NFSERR_STALECLIENTID ||
+ ret == NFSERR_BADSESSION) {
+ if (gotvp)
+ vrele(vp);
+ return (ret);
+ }
+ if (ret && !error)
+ error = ret;
+ }
+ }
+ if (gotvp)
+ vrele(vp);
+ return (error);
+}
+
+/*
+ * Move a locally issued open over to an owner on the state list.
+ * SIDE EFFECT: If it needs to sleep (do an rpc), it unlocks clstate and
+ * returns with it unlocked.
+ */
+static int
+nfscl_moveopen(vnode_t vp, struct nfsclclient *clp, struct nfsmount *nmp,
+ struct nfsclopen *lop, struct nfsclowner *owp, struct nfscldeleg *dp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclopen *op, *nop;
+ struct nfscldeleg *ndp;
+ struct nfsnode *np;
+ int error = 0, newone;
+
+ /*
+ * First, look for an appropriate open, If found, just increment the
+ * opencnt in it.
+ */
+ LIST_FOREACH(op, &owp->nfsow_open, nfso_list) {
+ if ((op->nfso_mode & lop->nfso_mode) == lop->nfso_mode &&
+ op->nfso_fhlen == lop->nfso_fhlen &&
+ !NFSBCMP(op->nfso_fh, lop->nfso_fh, op->nfso_fhlen)) {
+ op->nfso_opencnt += lop->nfso_opencnt;
+ nfscl_freeopen(lop, 1);
+ return (0);
+ }
+ }
+
+ /* No appropriate open, so we have to do one against the server. */
+ np = VTONFS(vp);
+ nop = malloc(sizeof (struct nfsclopen) +
+ lop->nfso_fhlen - 1, M_NFSCLOPEN, M_WAITOK);
+ newone = 0;
+ nfscl_newopen(clp, NULL, &owp, NULL, &op, &nop, owp->nfsow_owner,
+ lop->nfso_fh, lop->nfso_fhlen, cred, &newone);
+ ndp = dp;
+ error = nfscl_tryopen(nmp, vp, np->n_v4->n4_data, np->n_v4->n4_fhlen,
+ lop->nfso_fh, lop->nfso_fhlen, lop->nfso_mode, op,
+ NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, &ndp, 0, 0, cred, p);
+ if (error) {
+ if (newone)
+ nfscl_freeopen(op, 0);
+ } else {
+ op->nfso_mode |= lop->nfso_mode;
+ op->nfso_opencnt += lop->nfso_opencnt;
+ nfscl_freeopen(lop, 1);
+ }
+ if (nop != NULL)
+ free(nop, M_NFSCLOPEN);
+ if (ndp != NULL) {
+ /*
+ * What should I do with the returned delegation, since the
+ * delegation is being recalled? For now, just printf and
+ * through it away.
+ */
+ printf("Moveopen returned deleg\n");
+ free(ndp, M_NFSCLDELEG);
+ }
+ return (error);
+}
+
+/*
+ * Recall all delegations on this client.
+ */
+static void
+nfscl_totalrecall(struct nfsclclient *clp)
+{
+ struct nfscldeleg *dp;
+
+ TAILQ_FOREACH(dp, &clp->nfsc_deleg, nfsdl_list) {
+ if ((dp->nfsdl_flags & NFSCLDL_DELEGRET) == 0)
+ dp->nfsdl_flags |= NFSCLDL_RECALL;
+ }
+}
+
+/*
+ * Relock byte ranges. Called for delegation recall and state expiry.
+ */
+static int
+nfscl_relock(vnode_t vp, struct nfsclclient *clp, struct nfsmount *nmp,
+ struct nfscllockowner *lp, struct nfscllock *lop, struct ucred *cred,
+ NFSPROC_T *p)
+{
+ struct nfscllockowner *nlp;
+ struct nfsfh *nfhp;
+ u_int64_t off, len;
+ int error, newone, donelocally;
+
+ off = lop->nfslo_first;
+ len = lop->nfslo_end - lop->nfslo_first;
+ error = nfscl_getbytelock(vp, off, len, lop->nfslo_type, cred, p,
+ clp, 1, NULL, lp->nfsl_lockflags, lp->nfsl_owner,
+ lp->nfsl_openowner, &nlp, &newone, &donelocally);
+ if (error || donelocally)
+ return (error);
+ nfhp = VTONFS(vp)->n_fhp;
+ error = nfscl_trylock(nmp, vp, nfhp->nfh_fh,
+ nfhp->nfh_len, nlp, newone, 0, off,
+ len, lop->nfslo_type, cred, p);
+ if (error)
+ nfscl_freelockowner(nlp, 0);
+ return (error);
+}
+
+/*
+ * Called to re-open a file. Basically get a vnode for the file handle
+ * and then call nfsrpc_openrpc() to do the rest.
+ */
+static int
+nfsrpc_reopen(struct nfsmount *nmp, u_int8_t *fhp, int fhlen,
+ u_int32_t mode, struct nfsclopen *op, struct nfscldeleg **dpp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsnode *np;
+ vnode_t vp;
+ int error;
+
+ error = nfscl_ngetreopen(nmp->nm_mountp, fhp, fhlen, p, &np);
+ if (error)
+ return (error);
+ vp = NFSTOV(np);
+ if (np->n_v4 != NULL) {
+ error = nfscl_tryopen(nmp, vp, np->n_v4->n4_data,
+ np->n_v4->n4_fhlen, fhp, fhlen, mode, op,
+ NFS4NODENAME(np->n_v4), np->n_v4->n4_namelen, dpp, 0, 0,
+ cred, p);
+ } else {
+ error = EINVAL;
+ }
+ vrele(vp);
+ return (error);
+}
+
+/*
+ * Try an open against the server. Just call nfsrpc_openrpc(), retrying while
+ * NFSERR_DELAY. Also, try system credentials, if the passed in credentials
+ * fail.
+ */
+static int
+nfscl_tryopen(struct nfsmount *nmp, vnode_t vp, u_int8_t *fhp, int fhlen,
+ u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op,
+ u_int8_t *name, int namelen, struct nfscldeleg **ndpp,
+ int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p)
+{
+ int error;
+
+ do {
+ error = nfsrpc_openrpc(nmp, vp, fhp, fhlen, newfhp, newfhlen,
+ mode, op, name, namelen, ndpp, reclaim, delegtype, cred, p,
+ 0, 0);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstryop");
+ } while (error == NFSERR_DELAY);
+ if (error == EAUTH || error == EACCES) {
+ /* Try again using system credentials */
+ newnfs_setroot(cred);
+ do {
+ error = nfsrpc_openrpc(nmp, vp, fhp, fhlen, newfhp,
+ newfhlen, mode, op, name, namelen, ndpp, reclaim,
+ delegtype, cred, p, 1, 0);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstryop");
+ } while (error == NFSERR_DELAY);
+ }
+ return (error);
+}
+
+/*
+ * Try a byte range lock. Just loop on nfsrpc_lock() while it returns
+ * NFSERR_DELAY. Also, retry with system credentials, if the provided
+ * cred don't work.
+ */
+static int
+nfscl_trylock(struct nfsmount *nmp, vnode_t vp, u_int8_t *fhp,
+ int fhlen, struct nfscllockowner *nlp, int newone, int reclaim,
+ u_int64_t off, u_int64_t len, short type, struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ do {
+ error = nfsrpc_lock(nd, nmp, vp, fhp, fhlen, nlp, newone,
+ reclaim, off, len, type, cred, p, 0);
+ if (!error && nd->nd_repstat == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, (int)nd->nd_repstat,
+ "nfstrylck");
+ } while (!error && nd->nd_repstat == NFSERR_DELAY);
+ if (!error)
+ error = nd->nd_repstat;
+ if (error == EAUTH || error == EACCES) {
+ /* Try again using root credentials */
+ newnfs_setroot(cred);
+ do {
+ error = nfsrpc_lock(nd, nmp, vp, fhp, fhlen, nlp,
+ newone, reclaim, off, len, type, cred, p, 1);
+ if (!error && nd->nd_repstat == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, (int)nd->nd_repstat,
+ "nfstrylck");
+ } while (!error && nd->nd_repstat == NFSERR_DELAY);
+ if (!error)
+ error = nd->nd_repstat;
+ }
+ return (error);
+}
+
+/*
+ * Try a delegreturn against the server. Just call nfsrpc_delegreturn(),
+ * retrying while NFSERR_DELAY. Also, try system credentials, if the passed in
+ * credentials fail.
+ */
+static int
+nfscl_trydelegreturn(struct nfscldeleg *dp, struct ucred *cred,
+ struct nfsmount *nmp, NFSPROC_T *p)
+{
+ int error;
+
+ do {
+ error = nfsrpc_delegreturn(dp, cred, nmp, p, 0);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstrydp");
+ } while (error == NFSERR_DELAY);
+ if (error == EAUTH || error == EACCES) {
+ /* Try again using system credentials */
+ newnfs_setroot(cred);
+ do {
+ error = nfsrpc_delegreturn(dp, cred, nmp, p, 1);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstrydp");
+ } while (error == NFSERR_DELAY);
+ }
+ return (error);
+}
+
+/*
+ * Try a close against the server. Just call nfsrpc_closerpc(),
+ * retrying while NFSERR_DELAY. Also, try system credentials, if the passed in
+ * credentials fail.
+ */
+APPLESTATIC int
+nfscl_tryclose(struct nfsclopen *op, struct ucred *cred,
+ struct nfsmount *nmp, NFSPROC_T *p)
+{
+ struct nfsrv_descript nfsd, *nd = &nfsd;
+ int error;
+
+ do {
+ error = nfsrpc_closerpc(nd, nmp, op, cred, p, 0);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstrycl");
+ } while (error == NFSERR_DELAY);
+ if (error == EAUTH || error == EACCES) {
+ /* Try again using system credentials */
+ newnfs_setroot(cred);
+ do {
+ error = nfsrpc_closerpc(nd, nmp, op, cred, p, 1);
+ if (error == NFSERR_DELAY)
+ (void) nfs_catnap(PZERO, error, "nfstrycl");
+ } while (error == NFSERR_DELAY);
+ }
+ return (error);
+}
+
+/*
+ * Decide if a delegation on a file permits close without flushing writes
+ * to the server. This might be a big performance win in some environments.
+ * (Not useful until the client does caching on local stable storage.)
+ */
+APPLESTATIC int
+nfscl_mustflush(vnode_t vp)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+
+ np = VTONFS(vp);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return (1);
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (1);
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL && (dp->nfsdl_flags &
+ (NFSCLDL_WRITE | NFSCLDL_RECALL | NFSCLDL_DELEGRET)) ==
+ NFSCLDL_WRITE &&
+ (dp->nfsdl_sizelimit >= np->n_size ||
+ !NFSHASSTRICT3530(nmp))) {
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ NFSUNLOCKCLSTATE();
+ return (1);
+}
+
+/*
+ * See if a (write) delegation exists for this file.
+ */
+APPLESTATIC int
+nfscl_nodeleg(vnode_t vp, int writedeleg)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np;
+ struct nfsmount *nmp;
+
+ np = VTONFS(vp);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return (1);
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (1);
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL &&
+ (dp->nfsdl_flags & (NFSCLDL_RECALL | NFSCLDL_DELEGRET)) == 0 &&
+ (writedeleg == 0 || (dp->nfsdl_flags & NFSCLDL_WRITE) ==
+ NFSCLDL_WRITE)) {
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ NFSUNLOCKCLSTATE();
+ return (1);
+}
+
+/*
+ * Look for an associated delegation that should be DelegReturned.
+ */
+APPLESTATIC int
+nfscl_removedeleg(vnode_t vp, NFSPROC_T *p, nfsv4stateid_t *stp)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsclowner *owp;
+ struct nfscllockowner *lp;
+ struct nfsmount *nmp;
+ struct ucred *cred;
+ struct nfsnode *np;
+ int igotlock = 0, triedrecall = 0, needsrecall, retcnt = 0, islept;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ np = VTONFS(vp);
+ NFSLOCKCLSTATE();
+ /*
+ * Loop around waiting for:
+ * - outstanding I/O operations on delegations to complete
+ * - for a delegation on vp that has state, lock the client and
+ * do a recall
+ * - return delegation with no state
+ */
+ while (1) {
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len);
+ if (dp != NULL) {
+ /*
+ * Wait for outstanding I/O ops to be done.
+ */
+ if (dp->nfsdl_rwlock.nfslock_usecnt > 0) {
+ if (igotlock) {
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ }
+ dp->nfsdl_rwlock.nfslock_lock |= NFSV4LOCK_WANTED;
+ (void) nfsmsleep(&dp->nfsdl_rwlock,
+ NFSCLSTATEMUTEXPTR, PZERO, "nfscld", NULL);
+ continue;
+ }
+ needsrecall = 0;
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ if (!LIST_EMPTY(&owp->nfsow_open)) {
+ needsrecall = 1;
+ break;
+ }
+ }
+ if (!needsrecall) {
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!LIST_EMPTY(&lp->nfsl_lock)) {
+ needsrecall = 1;
+ break;
+ }
+ }
+ }
+ if (needsrecall && !triedrecall) {
+ dp->nfsdl_flags |= NFSCLDL_DELEGRET;
+ islept = 0;
+ while (!igotlock) {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1,
+ &islept, NFSCLSTATEMUTEXPTR, NULL);
+ if (islept)
+ break;
+ }
+ if (islept)
+ continue;
+ NFSUNLOCKCLSTATE();
+ cred = newnfs_getcred();
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ (void) nfscl_recalldeleg(clp, nmp, dp, vp, cred, p, 0);
+ NFSFREECRED(cred);
+ triedrecall = 1;
+ NFSLOCKCLSTATE();
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ continue;
+ }
+ *stp = dp->nfsdl_stateid;
+ retcnt = 1;
+ nfscl_cleandeleg(dp);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ }
+ if (igotlock)
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+}
+
+/*
+ * Look for associated delegation(s) that should be DelegReturned.
+ */
+APPLESTATIC int
+nfscl_renamedeleg(vnode_t fvp, nfsv4stateid_t *fstp, int *gotfdp, vnode_t tvp,
+ nfsv4stateid_t *tstp, int *gottdp, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsclowner *owp;
+ struct nfscllockowner *lp;
+ struct nfsmount *nmp;
+ struct ucred *cred;
+ struct nfsnode *np;
+ int igotlock = 0, triedrecall = 0, needsrecall, retcnt = 0, islept;
+
+ nmp = VFSTONFS(vnode_mount(fvp));
+ *gotfdp = 0;
+ *gottdp = 0;
+ NFSLOCKCLSTATE();
+ /*
+ * Loop around waiting for:
+ * - outstanding I/O operations on delegations to complete
+ * - for a delegation on fvp that has state, lock the client and
+ * do a recall
+ * - return delegation(s) with no state.
+ */
+ while (1) {
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+ np = VTONFS(fvp);
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len);
+ if (dp != NULL && *gotfdp == 0) {
+ /*
+ * Wait for outstanding I/O ops to be done.
+ */
+ if (dp->nfsdl_rwlock.nfslock_usecnt > 0) {
+ if (igotlock) {
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ }
+ dp->nfsdl_rwlock.nfslock_lock |= NFSV4LOCK_WANTED;
+ (void) nfsmsleep(&dp->nfsdl_rwlock,
+ NFSCLSTATEMUTEXPTR, PZERO, "nfscld", NULL);
+ continue;
+ }
+ needsrecall = 0;
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ if (!LIST_EMPTY(&owp->nfsow_open)) {
+ needsrecall = 1;
+ break;
+ }
+ }
+ if (!needsrecall) {
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!LIST_EMPTY(&lp->nfsl_lock)) {
+ needsrecall = 1;
+ break;
+ }
+ }
+ }
+ if (needsrecall && !triedrecall) {
+ dp->nfsdl_flags |= NFSCLDL_DELEGRET;
+ islept = 0;
+ while (!igotlock) {
+ igotlock = nfsv4_lock(&clp->nfsc_lock, 1,
+ &islept, NFSCLSTATEMUTEXPTR, NULL);
+ if (islept)
+ break;
+ }
+ if (islept)
+ continue;
+ NFSUNLOCKCLSTATE();
+ cred = newnfs_getcred();
+ newnfs_copycred(&dp->nfsdl_cred, cred);
+ (void) nfscl_recalldeleg(clp, nmp, dp, fvp, cred, p, 0);
+ NFSFREECRED(cred);
+ triedrecall = 1;
+ NFSLOCKCLSTATE();
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ continue;
+ }
+ *fstp = dp->nfsdl_stateid;
+ retcnt++;
+ *gotfdp = 1;
+ nfscl_cleandeleg(dp);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ }
+ if (igotlock) {
+ nfsv4_unlock(&clp->nfsc_lock, 0);
+ igotlock = 0;
+ }
+ if (tvp != NULL) {
+ np = VTONFS(tvp);
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh,
+ np->n_fhp->nfh_len);
+ if (dp != NULL && *gottdp == 0) {
+ /*
+ * Wait for outstanding I/O ops to be done.
+ */
+ if (dp->nfsdl_rwlock.nfslock_usecnt > 0) {
+ dp->nfsdl_rwlock.nfslock_lock |= NFSV4LOCK_WANTED;
+ (void) nfsmsleep(&dp->nfsdl_rwlock,
+ NFSCLSTATEMUTEXPTR, PZERO, "nfscld", NULL);
+ continue;
+ }
+ LIST_FOREACH(owp, &dp->nfsdl_owner, nfsow_list) {
+ if (!LIST_EMPTY(&owp->nfsow_open)) {
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+ }
+ LIST_FOREACH(lp, &dp->nfsdl_lock, nfsl_list) {
+ if (!LIST_EMPTY(&lp->nfsl_lock)) {
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+ }
+ *tstp = dp->nfsdl_stateid;
+ retcnt++;
+ *gottdp = 1;
+ nfscl_cleandeleg(dp);
+ nfscl_freedeleg(&clp->nfsc_deleg, dp);
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ return (retcnt);
+ }
+}
+
+/*
+ * Get a reference on the clientid associated with the mount point.
+ * Return 1 if success, 0 otherwise.
+ */
+APPLESTATIC int
+nfscl_getref(struct nfsmount *nmp)
+{
+ struct nfsclclient *clp;
+
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (0);
+ }
+ nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, NULL);
+ NFSUNLOCKCLSTATE();
+ return (1);
+}
+
+/*
+ * Release a reference on a clientid acquired with the above call.
+ */
+APPLESTATIC void
+nfscl_relref(struct nfsmount *nmp)
+{
+ struct nfsclclient *clp;
+
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ nfsv4_relref(&clp->nfsc_lock);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Save the size attribute in the delegation, since the nfsnode
+ * is going away.
+ */
+APPLESTATIC void
+nfscl_reclaimnode(vnode_t vp)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return;
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL && (dp->nfsdl_flags & NFSCLDL_WRITE))
+ dp->nfsdl_size = np->n_size;
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Get the saved size attribute in the delegation, since it is a
+ * newly allocated nfsnode.
+ */
+APPLESTATIC void
+nfscl_newnode(vnode_t vp)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return;
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL && (dp->nfsdl_flags & NFSCLDL_WRITE))
+ np->n_size = dp->nfsdl_size;
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * If there is a valid write delegation for this file, set the modtime
+ * to the local clock time.
+ */
+APPLESTATIC void
+nfscl_delegmodtime(vnode_t vp)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return;
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL && (dp->nfsdl_flags & NFSCLDL_WRITE)) {
+ nanotime(&dp->nfsdl_modtime);
+ dp->nfsdl_flags |= NFSCLDL_MODTIMESET;
+ }
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * If there is a valid write delegation for this file with a modtime set,
+ * put that modtime in mtime.
+ */
+APPLESTATIC void
+nfscl_deleggetmodtime(vnode_t vp, struct timespec *mtime)
+{
+ struct nfsclclient *clp;
+ struct nfscldeleg *dp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!NFSHASNFSV4(nmp))
+ return;
+ NFSLOCKCLSTATE();
+ clp = nfscl_findcl(nmp);
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return;
+ }
+ dp = nfscl_finddeleg(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (dp != NULL &&
+ (dp->nfsdl_flags & (NFSCLDL_WRITE | NFSCLDL_MODTIMESET)) ==
+ (NFSCLDL_WRITE | NFSCLDL_MODTIMESET))
+ *mtime = dp->nfsdl_modtime;
+ NFSUNLOCKCLSTATE();
+}
+
+static int
+nfscl_errmap(struct nfsrv_descript *nd, u_int32_t minorvers)
+{
+ short *defaulterrp, *errp;
+
+ if (!nd->nd_repstat)
+ return (0);
+ if (nd->nd_procnum == NFSPROC_NOOP)
+ return (txdr_unsigned(nd->nd_repstat & 0xffff));
+ if (nd->nd_repstat == EBADRPC)
+ return (txdr_unsigned(NFSERR_BADXDR));
+ if (nd->nd_repstat == NFSERR_MINORVERMISMATCH ||
+ nd->nd_repstat == NFSERR_OPILLEGAL)
+ return (txdr_unsigned(nd->nd_repstat));
+ if (nd->nd_repstat >= NFSERR_BADIOMODE && nd->nd_repstat < 20000 &&
+ minorvers > NFSV4_MINORVERSION) {
+ /* NFSv4.n error. */
+ return (txdr_unsigned(nd->nd_repstat));
+ }
+ if (nd->nd_procnum < NFSV4OP_CBNOPS)
+ errp = defaulterrp = nfscl_cberrmap[nd->nd_procnum];
+ else
+ return (txdr_unsigned(nd->nd_repstat));
+ while (*++errp)
+ if (*errp == (short)nd->nd_repstat)
+ return (txdr_unsigned(nd->nd_repstat));
+ return (txdr_unsigned(*defaulterrp));
+}
+
+/*
+ * Called to find/add a layout to a client.
+ * This function returns the layout with a refcnt (shared lock) upon
+ * success (returns 0) or with no lock/refcnt on the layout when an
+ * error is returned.
+ * If a layout is passed in via lypp, it is locked (exclusively locked).
+ */
+APPLESTATIC int
+nfscl_layout(struct nfsmount *nmp, vnode_t vp, u_int8_t *fhp, int fhlen,
+ nfsv4stateid_t *stateidp, int layouttype, int retonclose,
+ struct nfsclflayouthead *fhlp, struct nfscllayout **lypp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ struct nfscllayout *lyp, *tlyp;
+ struct nfsclflayout *flp;
+ struct nfsnode *np = VTONFS(vp);
+ mount_t mp;
+ int layout_passed_in;
+
+ mp = nmp->nm_mountp;
+ layout_passed_in = 1;
+ tlyp = NULL;
+ lyp = *lypp;
+ if (lyp == NULL) {
+ layout_passed_in = 0;
+ tlyp = malloc(sizeof(*tlyp) + fhlen - 1, M_NFSLAYOUT,
+ M_WAITOK | M_ZERO);
+ }
+
+ NFSLOCKCLSTATE();
+ clp = nmp->nm_clp;
+ if (clp == NULL) {
+ if (layout_passed_in != 0)
+ nfsv4_unlock(&lyp->nfsly_lock, 0);
+ NFSUNLOCKCLSTATE();
+ if (tlyp != NULL)
+ free(tlyp, M_NFSLAYOUT);
+ return (EPERM);
+ }
+ if (lyp == NULL) {
+ /*
+ * Although no lyp was passed in, another thread might have
+ * allocated one. If one is found, just increment it's ref
+ * count and return it.
+ */
+ lyp = nfscl_findlayout(clp, fhp, fhlen);
+ if (lyp == NULL) {
+ lyp = tlyp;
+ tlyp = NULL;
+ lyp->nfsly_stateid.seqid = stateidp->seqid;
+ lyp->nfsly_stateid.other[0] = stateidp->other[0];
+ lyp->nfsly_stateid.other[1] = stateidp->other[1];
+ lyp->nfsly_stateid.other[2] = stateidp->other[2];
+ lyp->nfsly_lastbyte = 0;
+ LIST_INIT(&lyp->nfsly_flayread);
+ LIST_INIT(&lyp->nfsly_flayrw);
+ LIST_INIT(&lyp->nfsly_recall);
+ lyp->nfsly_filesid[0] = np->n_vattr.na_filesid[0];
+ lyp->nfsly_filesid[1] = np->n_vattr.na_filesid[1];
+ lyp->nfsly_clp = clp;
+ if (layouttype == NFSLAYOUT_FLEXFILE)
+ lyp->nfsly_flags = NFSLY_FLEXFILE;
+ else
+ lyp->nfsly_flags = NFSLY_FILES;
+ if (retonclose != 0)
+ lyp->nfsly_flags |= NFSLY_RETONCLOSE;
+ lyp->nfsly_fhlen = fhlen;
+ NFSBCOPY(fhp, lyp->nfsly_fh, fhlen);
+ TAILQ_INSERT_HEAD(&clp->nfsc_layout, lyp, nfsly_list);
+ LIST_INSERT_HEAD(NFSCLLAYOUTHASH(clp, fhp, fhlen), lyp,
+ nfsly_hash);
+ lyp->nfsly_timestamp = NFSD_MONOSEC + 120;
+ nfscl_layoutcnt++;
+ } else {
+ if (retonclose != 0)
+ lyp->nfsly_flags |= NFSLY_RETONCLOSE;
+ TAILQ_REMOVE(&clp->nfsc_layout, lyp, nfsly_list);
+ TAILQ_INSERT_HEAD(&clp->nfsc_layout, lyp, nfsly_list);
+ lyp->nfsly_timestamp = NFSD_MONOSEC + 120;
+ }
+ nfsv4_getref(&lyp->nfsly_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
+ if (NFSCL_FORCEDISM(mp)) {
+ NFSUNLOCKCLSTATE();
+ if (tlyp != NULL)
+ free(tlyp, M_NFSLAYOUT);
+ return (EPERM);
+ }
+ *lypp = lyp;
+ } else
+ lyp->nfsly_stateid.seqid = stateidp->seqid;
+
+ /* Merge the new list of File Layouts into the list. */
+ flp = LIST_FIRST(fhlp);
+ if (flp != NULL) {
+ if (flp->nfsfl_iomode == NFSLAYOUTIOMODE_READ)
+ nfscl_mergeflayouts(&lyp->nfsly_flayread, fhlp);
+ else
+ nfscl_mergeflayouts(&lyp->nfsly_flayrw, fhlp);
+ }
+ if (layout_passed_in != 0)
+ nfsv4_unlock(&lyp->nfsly_lock, 1);
+ NFSUNLOCKCLSTATE();
+ if (tlyp != NULL)
+ free(tlyp, M_NFSLAYOUT);
+ return (0);
+}
+
+/*
+ * Search for a layout by MDS file handle.
+ * If one is found, it is returned with a refcnt (shared lock) iff
+ * retflpp returned non-NULL and locked (exclusive locked) iff retflpp is
+ * returned NULL.
+ */
+struct nfscllayout *
+nfscl_getlayout(struct nfsclclient *clp, uint8_t *fhp, int fhlen,
+ uint64_t off, struct nfsclflayout **retflpp, int *recalledp)
+{
+ struct nfscllayout *lyp;
+ mount_t mp;
+ int error, igotlock;
+
+ mp = clp->nfsc_nmp->nm_mountp;
+ *recalledp = 0;
+ *retflpp = NULL;
+ NFSLOCKCLSTATE();
+ lyp = nfscl_findlayout(clp, fhp, fhlen);
+ if (lyp != NULL) {
+ if ((lyp->nfsly_flags & NFSLY_RECALL) == 0) {
+ TAILQ_REMOVE(&clp->nfsc_layout, lyp, nfsly_list);
+ TAILQ_INSERT_HEAD(&clp->nfsc_layout, lyp, nfsly_list);
+ lyp->nfsly_timestamp = NFSD_MONOSEC + 120;
+ error = nfscl_findlayoutforio(lyp, off,
+ NFSV4OPEN_ACCESSREAD, retflpp);
+ if (error == 0)
+ nfsv4_getref(&lyp->nfsly_lock, NULL,
+ NFSCLSTATEMUTEXPTR, mp);
+ else {
+ do {
+ igotlock = nfsv4_lock(&lyp->nfsly_lock,
+ 1, NULL, NFSCLSTATEMUTEXPTR, mp);
+ } while (igotlock == 0 && !NFSCL_FORCEDISM(mp));
+ *retflpp = NULL;
+ }
+ if (NFSCL_FORCEDISM(mp)) {
+ lyp = NULL;
+ *recalledp = 1;
+ }
+ } else {
+ lyp = NULL;
+ *recalledp = 1;
+ }
+ }
+ NFSUNLOCKCLSTATE();
+ return (lyp);
+}
+
+/*
+ * Search for a layout by MDS file handle. If one is found, mark in to be
+ * recalled, if it already marked "return on close".
+ */
+static void
+nfscl_retoncloselayout(vnode_t vp, struct nfsclclient *clp, uint8_t *fhp,
+ int fhlen, struct nfsclrecalllayout **recallpp)
+{
+ struct nfscllayout *lyp;
+ uint32_t iomode;
+
+ if (vp->v_type != VREG || !NFSHASPNFS(VFSTONFS(vnode_mount(vp))) ||
+ nfscl_enablecallb == 0 || nfs_numnfscbd == 0 ||
+ (VTONFS(vp)->n_flag & NNOLAYOUT) != 0)
+ return;
+ lyp = nfscl_findlayout(clp, fhp, fhlen);
+ if (lyp != NULL && (lyp->nfsly_flags & (NFSLY_RETONCLOSE |
+ NFSLY_RECALL)) == NFSLY_RETONCLOSE) {
+ iomode = 0;
+ if (!LIST_EMPTY(&lyp->nfsly_flayread))
+ iomode |= NFSLAYOUTIOMODE_READ;
+ if (!LIST_EMPTY(&lyp->nfsly_flayrw))
+ iomode |= NFSLAYOUTIOMODE_RW;
+ (void)nfscl_layoutrecall(NFSLAYOUTRETURN_FILE, lyp, iomode,
+ 0, UINT64_MAX, lyp->nfsly_stateid.seqid, 0, 0, NULL,
+ *recallpp);
+ NFSCL_DEBUG(4, "retoncls recall iomode=%d\n", iomode);
+ *recallpp = NULL;
+ }
+}
+
+/*
+ * Mark the layout to be recalled and with an error.
+ * Also, disable the dsp from further use.
+ */
+void
+nfscl_dserr(uint32_t op, uint32_t stat, struct nfscldevinfo *dp,
+ struct nfscllayout *lyp, struct nfsclds *dsp)
+{
+ struct nfsclrecalllayout *recallp;
+ uint32_t iomode;
+
+ printf("DS being disabled, error=%d\n", stat);
+ /* Set up the return of the layout. */
+ recallp = malloc(sizeof(*recallp), M_NFSLAYRECALL, M_WAITOK);
+ iomode = 0;
+ NFSLOCKCLSTATE();
+ if ((lyp->nfsly_flags & NFSLY_RECALL) == 0) {
+ if (!LIST_EMPTY(&lyp->nfsly_flayread))
+ iomode |= NFSLAYOUTIOMODE_READ;
+ if (!LIST_EMPTY(&lyp->nfsly_flayrw))
+ iomode |= NFSLAYOUTIOMODE_RW;
+ (void)nfscl_layoutrecall(NFSLAYOUTRETURN_FILE, lyp, iomode,
+ 0, UINT64_MAX, lyp->nfsly_stateid.seqid, stat, op,
+ dp->nfsdi_deviceid, recallp);
+ NFSUNLOCKCLSTATE();
+ NFSCL_DEBUG(4, "nfscl_dserr recall iomode=%d\n", iomode);
+ } else {
+ NFSUNLOCKCLSTATE();
+ free(recallp, M_NFSLAYRECALL);
+ }
+
+ /* And shut the TCP connection down. */
+ nfscl_cancelreqs(dsp);
+}
+
+/*
+ * Cancel all RPCs for this "dsp" by closing the connection.
+ * Also, mark the session as defunct.
+ * If NFSCLDS_SAMECONN is set, the connection is shared with other DSs and
+ * cannot be shut down.
+ */
+APPLESTATIC void
+nfscl_cancelreqs(struct nfsclds *dsp)
+{
+ struct __rpc_client *cl;
+ static int non_event;
+
+ NFSLOCKDS(dsp);
+ if ((dsp->nfsclds_flags & (NFSCLDS_CLOSED | NFSCLDS_SAMECONN)) == 0 &&
+ dsp->nfsclds_sockp != NULL &&
+ dsp->nfsclds_sockp->nr_client != NULL) {
+ dsp->nfsclds_flags |= NFSCLDS_CLOSED;
+ cl = dsp->nfsclds_sockp->nr_client;
+ dsp->nfsclds_sess.nfsess_defunct = 1;
+ NFSUNLOCKDS(dsp);
+ CLNT_CLOSE(cl);
+ /*
+ * This 1sec sleep is done to reduce the number of reconnect
+ * attempts made on the DS while it has failed.
+ */
+ tsleep(&non_event, PVFS, "ndscls", hz);
+ return;
+ }
+ NFSUNLOCKDS(dsp);
+}
+
+/*
+ * Dereference a layout.
+ */
+void
+nfscl_rellayout(struct nfscllayout *lyp, int exclocked)
+{
+
+ NFSLOCKCLSTATE();
+ if (exclocked != 0)
+ nfsv4_unlock(&lyp->nfsly_lock, 0);
+ else
+ nfsv4_relref(&lyp->nfsly_lock);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Search for a devinfo by deviceid. If one is found, return it after
+ * acquiring a reference count on it.
+ */
+struct nfscldevinfo *
+nfscl_getdevinfo(struct nfsclclient *clp, uint8_t *deviceid,
+ struct nfscldevinfo *dip)
+{
+
+ NFSLOCKCLSTATE();
+ if (dip == NULL)
+ dip = nfscl_finddevinfo(clp, deviceid);
+ if (dip != NULL)
+ dip->nfsdi_refcnt++;
+ NFSUNLOCKCLSTATE();
+ return (dip);
+}
+
+/*
+ * Dereference a devinfo structure.
+ */
+static void
+nfscl_reldevinfo_locked(struct nfscldevinfo *dip)
+{
+
+ dip->nfsdi_refcnt--;
+ if (dip->nfsdi_refcnt == 0)
+ wakeup(&dip->nfsdi_refcnt);
+}
+
+/*
+ * Dereference a devinfo structure.
+ */
+void
+nfscl_reldevinfo(struct nfscldevinfo *dip)
+{
+
+ NFSLOCKCLSTATE();
+ nfscl_reldevinfo_locked(dip);
+ NFSUNLOCKCLSTATE();
+}
+
+/*
+ * Find a layout for this file handle. Return NULL upon failure.
+ */
+static struct nfscllayout *
+nfscl_findlayout(struct nfsclclient *clp, u_int8_t *fhp, int fhlen)
+{
+ struct nfscllayout *lyp;
+
+ LIST_FOREACH(lyp, NFSCLLAYOUTHASH(clp, fhp, fhlen), nfsly_hash)
+ if (lyp->nfsly_fhlen == fhlen &&
+ !NFSBCMP(lyp->nfsly_fh, fhp, fhlen))
+ break;
+ return (lyp);
+}
+
+/*
+ * Find a devinfo for this deviceid. Return NULL upon failure.
+ */
+static struct nfscldevinfo *
+nfscl_finddevinfo(struct nfsclclient *clp, uint8_t *deviceid)
+{
+ struct nfscldevinfo *dip;
+
+ LIST_FOREACH(dip, &clp->nfsc_devinfo, nfsdi_list)
+ if (NFSBCMP(dip->nfsdi_deviceid, deviceid, NFSX_V4DEVICEID)
+ == 0)
+ break;
+ return (dip);
+}
+
+/*
+ * Merge the new file layout list into the main one, maintaining it in
+ * increasing offset order.
+ */
+static void
+nfscl_mergeflayouts(struct nfsclflayouthead *fhlp,
+ struct nfsclflayouthead *newfhlp)
+{
+ struct nfsclflayout *flp, *nflp, *prevflp, *tflp;
+
+ flp = LIST_FIRST(fhlp);
+ prevflp = NULL;
+ LIST_FOREACH_SAFE(nflp, newfhlp, nfsfl_list, tflp) {
+ while (flp != NULL && flp->nfsfl_off < nflp->nfsfl_off) {
+ prevflp = flp;
+ flp = LIST_NEXT(flp, nfsfl_list);
+ }
+ if (prevflp == NULL)
+ LIST_INSERT_HEAD(fhlp, nflp, nfsfl_list);
+ else
+ LIST_INSERT_AFTER(prevflp, nflp, nfsfl_list);
+ prevflp = nflp;
+ }
+}
+
+/*
+ * Add this nfscldevinfo to the client, if it doesn't already exist.
+ * This function consumes the structure pointed at by dip, if not NULL.
+ */
+APPLESTATIC int
+nfscl_adddevinfo(struct nfsmount *nmp, struct nfscldevinfo *dip, int ind,
+ struct nfsclflayout *flp)
+{
+ struct nfsclclient *clp;
+ struct nfscldevinfo *tdip;
+ uint8_t *dev;
+
+ NFSLOCKCLSTATE();
+ clp = nmp->nm_clp;
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ if (dip != NULL)
+ free(dip, M_NFSDEVINFO);
+ return (ENODEV);
+ }
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ dev = flp->nfsfl_dev;
+ else
+ dev = flp->nfsfl_ffm[ind].dev;
+ tdip = nfscl_finddevinfo(clp, dev);
+ if (tdip != NULL) {
+ tdip->nfsdi_layoutrefs++;
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ flp->nfsfl_devp = tdip;
+ else
+ flp->nfsfl_ffm[ind].devp = tdip;
+ nfscl_reldevinfo_locked(tdip);
+ NFSUNLOCKCLSTATE();
+ if (dip != NULL)
+ free(dip, M_NFSDEVINFO);
+ return (0);
+ }
+ if (dip != NULL) {
+ LIST_INSERT_HEAD(&clp->nfsc_devinfo, dip, nfsdi_list);
+ dip->nfsdi_layoutrefs = 1;
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ flp->nfsfl_devp = dip;
+ else
+ flp->nfsfl_ffm[ind].devp = dip;
+ }
+ NFSUNLOCKCLSTATE();
+ if (dip == NULL)
+ return (ENODEV);
+ return (0);
+}
+
+/*
+ * Free up a layout structure and associated file layout structure(s).
+ */
+APPLESTATIC void
+nfscl_freelayout(struct nfscllayout *layp)
+{
+ struct nfsclflayout *flp, *nflp;
+ struct nfsclrecalllayout *rp, *nrp;
+
+ LIST_FOREACH_SAFE(flp, &layp->nfsly_flayread, nfsfl_list, nflp) {
+ LIST_REMOVE(flp, nfsfl_list);
+ nfscl_freeflayout(flp);
+ }
+ LIST_FOREACH_SAFE(flp, &layp->nfsly_flayrw, nfsfl_list, nflp) {
+ LIST_REMOVE(flp, nfsfl_list);
+ nfscl_freeflayout(flp);
+ }
+ LIST_FOREACH_SAFE(rp, &layp->nfsly_recall, nfsrecly_list, nrp) {
+ LIST_REMOVE(rp, nfsrecly_list);
+ free(rp, M_NFSLAYRECALL);
+ }
+ nfscl_layoutcnt--;
+ free(layp, M_NFSLAYOUT);
+}
+
+/*
+ * Free up a file layout structure.
+ */
+APPLESTATIC void
+nfscl_freeflayout(struct nfsclflayout *flp)
+{
+ int i, j;
+
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0) {
+ for (i = 0; i < flp->nfsfl_fhcnt; i++)
+ free(flp->nfsfl_fh[i], M_NFSFH);
+ if (flp->nfsfl_devp != NULL)
+ flp->nfsfl_devp->nfsdi_layoutrefs--;
+ }
+ if ((flp->nfsfl_flags & NFSFL_FLEXFILE) != 0)
+ for (i = 0; i < flp->nfsfl_mirrorcnt; i++) {
+ for (j = 0; j < flp->nfsfl_ffm[i].fhcnt; j++)
+ free(flp->nfsfl_ffm[i].fh[j], M_NFSFH);
+ if (flp->nfsfl_ffm[i].devp != NULL)
+ flp->nfsfl_ffm[i].devp->nfsdi_layoutrefs--;
+ }
+ free(flp, M_NFSFLAYOUT);
+}
+
+/*
+ * Free up a file layout devinfo structure.
+ */
+APPLESTATIC void
+nfscl_freedevinfo(struct nfscldevinfo *dip)
+{
+
+ free(dip, M_NFSDEVINFO);
+}
+
+/*
+ * Mark any layouts that match as recalled.
+ */
+static int
+nfscl_layoutrecall(int recalltype, struct nfscllayout *lyp, uint32_t iomode,
+ uint64_t off, uint64_t len, uint32_t stateseqid, uint32_t stat, uint32_t op,
+ char *devid, struct nfsclrecalllayout *recallp)
+{
+ struct nfsclrecalllayout *rp, *orp;
+
+ recallp->nfsrecly_recalltype = recalltype;
+ recallp->nfsrecly_iomode = iomode;
+ recallp->nfsrecly_stateseqid = stateseqid;
+ recallp->nfsrecly_off = off;
+ recallp->nfsrecly_len = len;
+ recallp->nfsrecly_stat = stat;
+ recallp->nfsrecly_op = op;
+ if (devid != NULL)
+ NFSBCOPY(devid, recallp->nfsrecly_devid, NFSX_V4DEVICEID);
+ /*
+ * Order the list as file returns first, followed by fsid and any
+ * returns, both in increasing stateseqid order.
+ * Note that the seqids wrap around, so 1 is after 0xffffffff.
+ * (I'm not sure this is correct because I find RFC5661 confusing
+ * on this, but hopefully it will work ok.)
+ */
+ orp = NULL;
+ LIST_FOREACH(rp, &lyp->nfsly_recall, nfsrecly_list) {
+ orp = rp;
+ if ((recalltype == NFSLAYOUTRETURN_FILE &&
+ (rp->nfsrecly_recalltype != NFSLAYOUTRETURN_FILE ||
+ nfscl_seq(stateseqid, rp->nfsrecly_stateseqid) != 0)) ||
+ (recalltype != NFSLAYOUTRETURN_FILE &&
+ rp->nfsrecly_recalltype != NFSLAYOUTRETURN_FILE &&
+ nfscl_seq(stateseqid, rp->nfsrecly_stateseqid) != 0)) {
+ LIST_INSERT_BEFORE(rp, recallp, nfsrecly_list);
+ break;
+ }
+
+ /*
+ * Put any error return on all the file returns that will
+ * preceed this one.
+ */
+ if (rp->nfsrecly_recalltype == NFSLAYOUTRETURN_FILE &&
+ stat != 0 && rp->nfsrecly_stat == 0) {
+ rp->nfsrecly_stat = stat;
+ rp->nfsrecly_op = op;
+ if (devid != NULL)
+ NFSBCOPY(devid, rp->nfsrecly_devid,
+ NFSX_V4DEVICEID);
+ }
+ }
+ if (rp == NULL) {
+ if (orp == NULL)
+ LIST_INSERT_HEAD(&lyp->nfsly_recall, recallp,
+ nfsrecly_list);
+ else
+ LIST_INSERT_AFTER(orp, recallp, nfsrecly_list);
+ }
+ lyp->nfsly_flags |= NFSLY_RECALL;
+ wakeup(lyp->nfsly_clp);
+ return (0);
+}
+
+/*
+ * Compare the two seqids for ordering. The trick is that the seqids can
+ * wrap around from 0xffffffff->0, so check for the cases where one
+ * has wrapped around.
+ * Return 1 if seqid1 comes before seqid2, 0 otherwise.
+ */
+static int
+nfscl_seq(uint32_t seqid1, uint32_t seqid2)
+{
+
+ if (seqid2 > seqid1 && (seqid2 - seqid1) >= 0x7fffffff)
+ /* seqid2 has wrapped around. */
+ return (0);
+ if (seqid1 > seqid2 && (seqid1 - seqid2) >= 0x7fffffff)
+ /* seqid1 has wrapped around. */
+ return (1);
+ if (seqid1 <= seqid2)
+ return (1);
+ return (0);
+}
+
+/*
+ * Do a layout return for each of the recalls.
+ */
+static void
+nfscl_layoutreturn(struct nfsmount *nmp, struct nfscllayout *lyp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclrecalllayout *rp;
+ nfsv4stateid_t stateid;
+ int layouttype;
+
+ NFSBCOPY(lyp->nfsly_stateid.other, stateid.other, NFSX_STATEIDOTHER);
+ stateid.seqid = lyp->nfsly_stateid.seqid;
+ if ((lyp->nfsly_flags & NFSLY_FILES) != 0)
+ layouttype = NFSLAYOUT_NFSV4_1_FILES;
+ else
+ layouttype = NFSLAYOUT_FLEXFILE;
+ LIST_FOREACH(rp, &lyp->nfsly_recall, nfsrecly_list) {
+ (void)nfsrpc_layoutreturn(nmp, lyp->nfsly_fh,
+ lyp->nfsly_fhlen, 0, layouttype,
+ rp->nfsrecly_iomode, rp->nfsrecly_recalltype,
+ rp->nfsrecly_off, rp->nfsrecly_len,
+ &stateid, cred, p, rp->nfsrecly_stat, rp->nfsrecly_op,
+ rp->nfsrecly_devid);
+ }
+}
+
+/*
+ * Do the layout commit for a file layout.
+ */
+static void
+nfscl_dolayoutcommit(struct nfsmount *nmp, struct nfscllayout *lyp,
+ struct ucred *cred, NFSPROC_T *p)
+{
+ struct nfsclflayout *flp;
+ uint64_t len;
+ int error, layouttype;
+
+ if ((lyp->nfsly_flags & NFSLY_FILES) != 0)
+ layouttype = NFSLAYOUT_NFSV4_1_FILES;
+ else
+ layouttype = NFSLAYOUT_FLEXFILE;
+ LIST_FOREACH(flp, &lyp->nfsly_flayrw, nfsfl_list) {
+ if (layouttype == NFSLAYOUT_FLEXFILE &&
+ (flp->nfsfl_fflags & NFSFLEXFLAG_NO_LAYOUTCOMMIT) != 0) {
+ NFSCL_DEBUG(4, "Flex file: no layoutcommit\n");
+ /* If not supported, don't bother doing it. */
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_NOLAYOUTCOMMIT;
+ NFSUNLOCKMNT(nmp);
+ break;
+ } else if (flp->nfsfl_off <= lyp->nfsly_lastbyte) {
+ len = flp->nfsfl_end - flp->nfsfl_off;
+ error = nfsrpc_layoutcommit(nmp, lyp->nfsly_fh,
+ lyp->nfsly_fhlen, 0, flp->nfsfl_off, len,
+ lyp->nfsly_lastbyte, &lyp->nfsly_stateid,
+ layouttype, cred, p, NULL);
+ NFSCL_DEBUG(4, "layoutcommit err=%d\n", error);
+ if (error == NFSERR_NOTSUPP) {
+ /* If not supported, don't bother doing it. */
+ NFSLOCKMNT(nmp);
+ nmp->nm_state |= NFSSTA_NOLAYOUTCOMMIT;
+ NFSUNLOCKMNT(nmp);
+ break;
+ }
+ }
+ }
+}
+
+/*
+ * Commit all layouts for a file (vnode).
+ */
+int
+nfscl_layoutcommit(vnode_t vp, NFSPROC_T *p)
+{
+ struct nfsclclient *clp;
+ struct nfscllayout *lyp;
+ struct nfsnode *np = VTONFS(vp);
+ mount_t mp;
+ struct nfsmount *nmp;
+
+ mp = vnode_mount(vp);
+ nmp = VFSTONFS(mp);
+ if (NFSHASNOLAYOUTCOMMIT(nmp))
+ return (0);
+ NFSLOCKCLSTATE();
+ clp = nmp->nm_clp;
+ if (clp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (EPERM);
+ }
+ lyp = nfscl_findlayout(clp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len);
+ if (lyp == NULL) {
+ NFSUNLOCKCLSTATE();
+ return (EPERM);
+ }
+ nfsv4_getref(&lyp->nfsly_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
+ if (NFSCL_FORCEDISM(mp)) {
+ NFSUNLOCKCLSTATE();
+ return (EPERM);
+ }
+tryagain:
+ if ((lyp->nfsly_flags & NFSLY_WRITTEN) != 0) {
+ lyp->nfsly_flags &= ~NFSLY_WRITTEN;
+ NFSUNLOCKCLSTATE();
+ NFSCL_DEBUG(4, "do layoutcommit2\n");
+ nfscl_dolayoutcommit(clp->nfsc_nmp, lyp, NFSPROCCRED(p), p);
+ NFSLOCKCLSTATE();
+ goto tryagain;
+ }
+ nfsv4_relref(&lyp->nfsly_lock);
+ NFSUNLOCKCLSTATE();
+ return (0);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clsubs.c b/freebsd/sys/fs/nfsclient/nfs_clsubs.c
new file mode 100644
index 0000000..1c69d93
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clsubs.c
@@ -0,0 +1,391 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_subs.c 8.8 (Berkeley) 5/22/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * These functions support the macros and help fiddle mbuf chains for
+ * the nfs op functions. They do things like create the rpc header and
+ * copy data between mbuf chains and uio lists.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/proc.h>
+#include <sys/mount.h>
+#include <sys/vnode.h>
+#include <sys/namei.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/malloc.h>
+#include <sys/sysent.h>
+#include <sys/syscall.h>
+#include <sys/sysproto.h>
+#include <sys/taskqueue.h>
+
+#include <vm/vm.h>
+#include <vm/vm_object.h>
+#include <vm/vm_extern.h>
+#include <vm/uma.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsnode.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+#include <netinet/in.h>
+
+/*
+ * Note that stdarg.h and the ANSI style va_start macro is used for both
+ * ANSI and traditional C compilers.
+ */
+#include <machine/stdarg.h>
+
+extern struct mtx ncl_iod_mutex;
+extern enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
+extern struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
+extern int ncl_numasync;
+extern unsigned int ncl_iodmax;
+extern struct nfsstatsv1 nfsstatsv1;
+
+struct task ncl_nfsiodnew_task;
+
+int
+ncl_uninit(struct vfsconf *vfsp)
+{
+ /*
+ * XXX: Unloading of nfscl module is unsupported.
+ */
+#if 0
+ int i;
+
+ /*
+ * Tell all nfsiod processes to exit. Clear ncl_iodmax, and wakeup
+ * any sleeping nfsiods so they check ncl_iodmax and exit.
+ */
+ NFSLOCKIOD();
+ ncl_iodmax = 0;
+ for (i = 0; i < ncl_numasync; i++)
+ if (ncl_iodwant[i] == NFSIOD_AVAILABLE)
+ wakeup(&ncl_iodwant[i]);
+ /* The last nfsiod to exit will wake us up when ncl_numasync hits 0 */
+ while (ncl_numasync)
+ msleep(&ncl_numasync, &ncl_iod_mutex, PWAIT, "ioddie", 0);
+ NFSUNLOCKIOD();
+ ncl_nhuninit();
+ return (0);
+#else
+ return (EOPNOTSUPP);
+#endif
+}
+
+void
+ncl_dircookie_lock(struct nfsnode *np)
+{
+ NFSLOCKNODE(np);
+ while (np->n_flag & NDIRCOOKIELK)
+ (void) msleep(&np->n_flag, &np->n_mtx, PZERO, "nfsdirlk", 0);
+ np->n_flag |= NDIRCOOKIELK;
+ NFSUNLOCKNODE(np);
+}
+
+void
+ncl_dircookie_unlock(struct nfsnode *np)
+{
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDIRCOOKIELK;
+ wakeup(&np->n_flag);
+ NFSUNLOCKNODE(np);
+}
+
+bool
+ncl_excl_start(struct vnode *vp)
+{
+ struct nfsnode *np;
+ int vn_lk;
+
+ ASSERT_VOP_LOCKED(vp, "ncl_excl_start");
+ vn_lk = NFSVOPISLOCKED(vp);
+ if (vn_lk == LK_EXCLUSIVE)
+ return (false);
+ KASSERT(vn_lk == LK_SHARED,
+ ("ncl_excl_start: wrong vnode lock %d", vn_lk));
+ /* Ensure exclusive access, this might block */
+ np = VTONFS(vp);
+ lockmgr(&np->n_excl, LK_EXCLUSIVE, NULL);
+ return (true);
+}
+
+void
+ncl_excl_finish(struct vnode *vp, bool old_lock)
+{
+ struct nfsnode *np;
+
+ if (!old_lock)
+ return;
+ np = VTONFS(vp);
+ lockmgr(&np->n_excl, LK_RELEASE, NULL);
+}
+
+#ifdef NFS_ACDEBUG
+#include <sys/sysctl.h>
+SYSCTL_DECL(_vfs_nfs);
+static int nfs_acdebug;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, acdebug, CTLFLAG_RW, &nfs_acdebug, 0, "");
+#endif
+
+/*
+ * Check the time stamp
+ * If the cache is valid, copy contents to *vap and return 0
+ * otherwise return an error
+ */
+int
+ncl_getattrcache(struct vnode *vp, struct vattr *vaper)
+{
+ struct nfsnode *np;
+ struct vattr *vap;
+ struct nfsmount *nmp;
+ int timeo, mustflush;
+ u_quad_t nsize;
+ bool setnsize;
+
+ np = VTONFS(vp);
+ vap = &np->n_vattr.na_vattr;
+ nmp = VFSTONFS(vp->v_mount);
+ mustflush = nfscl_mustflush(vp); /* must be before mtx_lock() */
+ NFSLOCKNODE(np);
+ /* XXX n_mtime doesn't seem to be updated on a miss-and-reload */
+ timeo = (time_second - np->n_mtime.tv_sec) / 10;
+
+#ifdef NFS_ACDEBUG
+ if (nfs_acdebug>1)
+ printf("ncl_getattrcache: initial timeo = %d\n", timeo);
+#endif
+
+ if (vap->va_type == VDIR) {
+ if ((np->n_flag & NMODIFIED) || timeo < nmp->nm_acdirmin)
+ timeo = nmp->nm_acdirmin;
+ else if (timeo > nmp->nm_acdirmax)
+ timeo = nmp->nm_acdirmax;
+ } else {
+ if ((np->n_flag & NMODIFIED) || timeo < nmp->nm_acregmin)
+ timeo = nmp->nm_acregmin;
+ else if (timeo > nmp->nm_acregmax)
+ timeo = nmp->nm_acregmax;
+ }
+
+#ifdef NFS_ACDEBUG
+ if (nfs_acdebug > 2)
+ printf("acregmin %d; acregmax %d; acdirmin %d; acdirmax %d\n",
+ nmp->nm_acregmin, nmp->nm_acregmax,
+ nmp->nm_acdirmin, nmp->nm_acdirmax);
+
+ if (nfs_acdebug)
+ printf("ncl_getattrcache: age = %d; final timeo = %d\n",
+ (time_second - np->n_attrstamp), timeo);
+#endif
+
+ if ((time_second - np->n_attrstamp) >= timeo &&
+ (mustflush != 0 || np->n_attrstamp == 0)) {
+ nfsstatsv1.attrcache_misses++;
+ NFSUNLOCKNODE(np);
+ KDTRACE_NFS_ATTRCACHE_GET_MISS(vp);
+ return( ENOENT);
+ }
+ nfsstatsv1.attrcache_hits++;
+ setnsize = false;
+ if (vap->va_size != np->n_size) {
+ if (vap->va_type == VREG) {
+ if (np->n_flag & NMODIFIED) {
+ if (vap->va_size < np->n_size)
+ vap->va_size = np->n_size;
+ else
+ np->n_size = vap->va_size;
+ } else {
+ np->n_size = vap->va_size;
+ }
+ setnsize = ncl_pager_setsize(vp, &nsize);
+ } else {
+ np->n_size = vap->va_size;
+ }
+ }
+ bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr));
+ if (np->n_flag & NCHG) {
+ if (np->n_flag & NACC)
+ vaper->va_atime = np->n_atim;
+ if (np->n_flag & NUPD)
+ vaper->va_mtime = np->n_mtim;
+ }
+ NFSUNLOCKNODE(np);
+ if (setnsize)
+ vnode_pager_setsize(vp, nsize);
+ KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap);
+ return (0);
+}
+
+static nfsuint64 nfs_nullcookie = { { 0, 0 } };
+/*
+ * This function finds the directory cookie that corresponds to the
+ * logical byte offset given.
+ */
+nfsuint64 *
+ncl_getcookie(struct nfsnode *np, off_t off, int add)
+{
+ struct nfsdmap *dp, *dp2;
+ int pos;
+ nfsuint64 *retval = NULL;
+
+ pos = (uoff_t)off / NFS_DIRBLKSIZ;
+ if (pos == 0 || off < 0) {
+ KASSERT(!add, ("nfs getcookie add at <= 0"));
+ return (&nfs_nullcookie);
+ }
+ pos--;
+ dp = LIST_FIRST(&np->n_cookies);
+ if (!dp) {
+ if (add) {
+ dp = malloc(sizeof (struct nfsdmap),
+ M_NFSDIROFF, M_WAITOK);
+ dp->ndm_eocookie = 0;
+ LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list);
+ } else
+ goto out;
+ }
+ while (pos >= NFSNUMCOOKIES) {
+ pos -= NFSNUMCOOKIES;
+ if (LIST_NEXT(dp, ndm_list)) {
+ if (!add && dp->ndm_eocookie < NFSNUMCOOKIES &&
+ pos >= dp->ndm_eocookie)
+ goto out;
+ dp = LIST_NEXT(dp, ndm_list);
+ } else if (add) {
+ dp2 = malloc(sizeof (struct nfsdmap),
+ M_NFSDIROFF, M_WAITOK);
+ dp2->ndm_eocookie = 0;
+ LIST_INSERT_AFTER(dp, dp2, ndm_list);
+ dp = dp2;
+ } else
+ goto out;
+ }
+ if (pos >= dp->ndm_eocookie) {
+ if (add)
+ dp->ndm_eocookie = pos + 1;
+ else
+ goto out;
+ }
+ retval = &dp->ndm_cookies[pos];
+out:
+ return (retval);
+}
+
+/*
+ * Invalidate cached directory information, except for the actual directory
+ * blocks (which are invalidated separately).
+ * Done mainly to avoid the use of stale offset cookies.
+ */
+void
+ncl_invaldir(struct vnode *vp)
+{
+ struct nfsnode *np = VTONFS(vp);
+
+ KASSERT(vp->v_type == VDIR, ("nfs: invaldir not dir"));
+ ncl_dircookie_lock(np);
+ np->n_direofoffset = 0;
+ np->n_cookieverf.nfsuquad[0] = 0;
+ np->n_cookieverf.nfsuquad[1] = 0;
+ if (LIST_FIRST(&np->n_cookies))
+ LIST_FIRST(&np->n_cookies)->ndm_eocookie = 0;
+ ncl_dircookie_unlock(np);
+}
+
+/*
+ * The write verifier has changed (probably due to a server reboot), so all
+ * B_NEEDCOMMIT blocks will have to be written again. Since they are on the
+ * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT
+ * and B_CLUSTEROK flags. Once done the new write verifier can be set for the
+ * mount point.
+ *
+ * B_CLUSTEROK must be cleared along with B_NEEDCOMMIT because stage 1 data
+ * writes are not clusterable.
+ */
+void
+ncl_clearcommit(struct mount *mp)
+{
+ struct vnode *vp, *nvp;
+ struct buf *bp, *nbp;
+ struct bufobj *bo;
+
+ MNT_VNODE_FOREACH_ALL(vp, mp, nvp) {
+ bo = &vp->v_bufobj;
+ vholdl(vp);
+ VI_UNLOCK(vp);
+ BO_LOCK(bo);
+ TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
+ if (!BUF_ISLOCKED(bp) &&
+ (bp->b_flags & (B_DELWRI | B_NEEDCOMMIT))
+ == (B_DELWRI | B_NEEDCOMMIT))
+ bp->b_flags &= ~(B_NEEDCOMMIT | B_CLUSTEROK);
+ }
+ BO_UNLOCK(bo);
+ vdrop(vp);
+ }
+}
+
+/*
+ * Called once to initialize data structures...
+ */
+int
+ncl_init(struct vfsconf *vfsp)
+{
+ int i;
+
+ /* Ensure async daemons disabled */
+ for (i = 0; i < NFS_MAXASYNCDAEMON; i++) {
+ ncl_iodwant[i] = NFSIOD_NOT_AVAILABLE;
+ ncl_iodmount[i] = NULL;
+ }
+ TASK_INIT(&ncl_nfsiodnew_task, 0, ncl_nfsiodnew_tq, NULL);
+ ncl_nhinit(); /* Init the nfsnode table */
+
+ return (0);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clvfsops.c b/freebsd/sys/fs/nfsclient/nfs_clvfsops.c
new file mode 100644
index 0000000..348a64a
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clvfsops.c
@@ -0,0 +1,2051 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_vfsops.c 8.12 (Berkeley) 5/20/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+
+#include "opt_bootp.h"
+#include "opt_nfsroot.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/clock.h>
+#include <sys/jail.h>
+#include <sys/limits.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/module.h>
+#include <sys/mount.h>
+#include <sys/proc.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/vnode.h>
+#include <sys/signalvar.h>
+
+#include <vm/vm.h>
+#include <vm/vm_extern.h>
+#include <vm/uma.h>
+
+#include <net/if.h>
+#include <net/route.h>
+#include <netinet/in.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsnode.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <nfs/nfsdiskless.h>
+
+FEATURE(nfscl, "NFSv4 client");
+
+extern int nfscl_ticks;
+extern struct timeval nfsboottime;
+extern int nfsrv_useacl;
+extern int nfscl_debuglevel;
+extern enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
+extern struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
+extern struct mtx ncl_iod_mutex;
+NFSCLSTATEMUTEX;
+extern struct mtx nfsrv_dslock_mtx;
+
+MALLOC_DEFINE(M_NEWNFSREQ, "newnfsclient_req", "NFS request header");
+MALLOC_DEFINE(M_NEWNFSMNT, "newnfsmnt", "NFS mount struct");
+
+SYSCTL_DECL(_vfs_nfs);
+static int nfs_ip_paranoia = 1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_ip_paranoia, CTLFLAG_RW,
+ &nfs_ip_paranoia, 0, "");
+static int nfs_tprintf_initial_delay = NFS_TPRINTF_INITIAL_DELAY;
+SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_INITIAL_DELAY,
+ downdelayinitial, CTLFLAG_RW, &nfs_tprintf_initial_delay, 0, "");
+/* how long between console messages "nfs server foo not responding" */
+static int nfs_tprintf_delay = NFS_TPRINTF_DELAY;
+SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_DELAY,
+ downdelayinterval, CTLFLAG_RW, &nfs_tprintf_delay, 0, "");
+#ifdef NFS_DEBUG
+int nfs_debug;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, debug, CTLFLAG_RW, &nfs_debug, 0,
+ "Toggle debug flag");
+#endif
+
+static int nfs_mountroot(struct mount *);
+static void nfs_sec_name(char *, int *);
+static void nfs_decode_args(struct mount *mp, struct nfsmount *nmp,
+ struct nfs_args *argp, const char *, struct ucred *,
+ struct thread *);
+static int mountnfs(struct nfs_args *, struct mount *,
+ struct sockaddr *, char *, u_char *, int, u_char *, int,
+ u_char *, int, struct vnode **, struct ucred *,
+ struct thread *, int, int, int);
+static void nfs_getnlminfo(struct vnode *, uint8_t *, size_t *,
+ struct sockaddr_storage *, int *, off_t *,
+ struct timeval *);
+static vfs_mount_t nfs_mount;
+static vfs_cmount_t nfs_cmount;
+static vfs_unmount_t nfs_unmount;
+static vfs_root_t nfs_root;
+static vfs_statfs_t nfs_statfs;
+static vfs_sync_t nfs_sync;
+static vfs_sysctl_t nfs_sysctl;
+static vfs_purge_t nfs_purge;
+
+/*
+ * nfs vfs operations.
+ */
+static struct vfsops nfs_vfsops = {
+ .vfs_init = ncl_init,
+ .vfs_mount = nfs_mount,
+ .vfs_cmount = nfs_cmount,
+ .vfs_root = nfs_root,
+ .vfs_statfs = nfs_statfs,
+ .vfs_sync = nfs_sync,
+ .vfs_uninit = ncl_uninit,
+ .vfs_unmount = nfs_unmount,
+ .vfs_sysctl = nfs_sysctl,
+ .vfs_purge = nfs_purge,
+};
+VFS_SET(nfs_vfsops, nfs, VFCF_NETWORK | VFCF_SBDRY);
+
+/* So that loader and kldload(2) can find us, wherever we are.. */
+MODULE_VERSION(nfs, 1);
+MODULE_DEPEND(nfs, nfscommon, 1, 1, 1);
+MODULE_DEPEND(nfs, krpc, 1, 1, 1);
+MODULE_DEPEND(nfs, nfssvc, 1, 1, 1);
+MODULE_DEPEND(nfs, nfslock, 1, 1, 1);
+
+/*
+ * This structure is now defined in sys/nfs/nfs_diskless.c so that it
+ * can be shared by both NFS clients. It is declared here so that it
+ * will be defined for kernels built without NFS_ROOT, although it
+ * isn't used in that case.
+ */
+#if !defined(NFS_ROOT)
+struct nfs_diskless nfs_diskless = { { { 0 } } };
+struct nfsv3_diskless nfsv3_diskless = { { { 0 } } };
+int nfs_diskless_valid = 0;
+#endif
+
+SYSCTL_INT(_vfs_nfs, OID_AUTO, diskless_valid, CTLFLAG_RD,
+ &nfs_diskless_valid, 0,
+ "Has the diskless struct been filled correctly");
+
+SYSCTL_STRING(_vfs_nfs, OID_AUTO, diskless_rootpath, CTLFLAG_RD,
+ nfsv3_diskless.root_hostnam, 0, "Path to nfs root");
+
+SYSCTL_OPAQUE(_vfs_nfs, OID_AUTO, diskless_rootaddr, CTLFLAG_RD,
+ &nfsv3_diskless.root_saddr, sizeof(nfsv3_diskless.root_saddr),
+ "%Ssockaddr_in", "Diskless root nfs address");
+
+
+void newnfsargs_ntoh(struct nfs_args *);
+static int nfs_mountdiskless(char *,
+ struct sockaddr_in *, struct nfs_args *,
+ struct thread *, struct vnode **, struct mount *);
+static void nfs_convert_diskless(void);
+static void nfs_convert_oargs(struct nfs_args *args,
+ struct onfs_args *oargs);
+
+int
+newnfs_iosize(struct nfsmount *nmp)
+{
+ int iosize, maxio;
+
+ /* First, set the upper limit for iosize */
+ if (nmp->nm_flag & NFSMNT_NFSV4) {
+ maxio = NFS_MAXBSIZE;
+ } else if (nmp->nm_flag & NFSMNT_NFSV3) {
+ if (nmp->nm_sotype == SOCK_DGRAM)
+ maxio = NFS_MAXDGRAMDATA;
+ else
+ maxio = NFS_MAXBSIZE;
+ } else {
+ maxio = NFS_V2MAXDATA;
+ }
+ if (nmp->nm_rsize > maxio || nmp->nm_rsize == 0)
+ nmp->nm_rsize = maxio;
+ if (nmp->nm_rsize > NFS_MAXBSIZE)
+ nmp->nm_rsize = NFS_MAXBSIZE;
+ if (nmp->nm_readdirsize > maxio || nmp->nm_readdirsize == 0)
+ nmp->nm_readdirsize = maxio;
+ if (nmp->nm_readdirsize > nmp->nm_rsize)
+ nmp->nm_readdirsize = nmp->nm_rsize;
+ if (nmp->nm_wsize > maxio || nmp->nm_wsize == 0)
+ nmp->nm_wsize = maxio;
+ if (nmp->nm_wsize > NFS_MAXBSIZE)
+ nmp->nm_wsize = NFS_MAXBSIZE;
+
+ /*
+ * Calculate the size used for io buffers. Use the larger
+ * of the two sizes to minimise nfs requests but make sure
+ * that it is at least one VM page to avoid wasting buffer
+ * space. It must also be at least NFS_DIRBLKSIZ, since
+ * that is the buffer size used for directories.
+ */
+ iosize = imax(nmp->nm_rsize, nmp->nm_wsize);
+ iosize = imax(iosize, PAGE_SIZE);
+ iosize = imax(iosize, NFS_DIRBLKSIZ);
+ nmp->nm_mountp->mnt_stat.f_iosize = iosize;
+ return (iosize);
+}
+
+static void
+nfs_convert_oargs(struct nfs_args *args, struct onfs_args *oargs)
+{
+
+ args->version = NFS_ARGSVERSION;
+ args->addr = oargs->addr;
+ args->addrlen = oargs->addrlen;
+ args->sotype = oargs->sotype;
+ args->proto = oargs->proto;
+ args->fh = oargs->fh;
+ args->fhsize = oargs->fhsize;
+ args->flags = oargs->flags;
+ args->wsize = oargs->wsize;
+ args->rsize = oargs->rsize;
+ args->readdirsize = oargs->readdirsize;
+ args->timeo = oargs->timeo;
+ args->retrans = oargs->retrans;
+ args->readahead = oargs->readahead;
+ args->hostname = oargs->hostname;
+}
+
+static void
+nfs_convert_diskless(void)
+{
+
+ bcopy(&nfs_diskless.myif, &nfsv3_diskless.myif,
+ sizeof(struct ifaliasreq));
+ bcopy(&nfs_diskless.mygateway, &nfsv3_diskless.mygateway,
+ sizeof(struct sockaddr_in));
+ nfs_convert_oargs(&nfsv3_diskless.root_args,&nfs_diskless.root_args);
+ if (nfsv3_diskless.root_args.flags & NFSMNT_NFSV3) {
+ nfsv3_diskless.root_fhsize = NFSX_MYFH;
+ bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_MYFH);
+ } else {
+ nfsv3_diskless.root_fhsize = NFSX_V2FH;
+ bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_V2FH);
+ }
+ bcopy(&nfs_diskless.root_saddr,&nfsv3_diskless.root_saddr,
+ sizeof(struct sockaddr_in));
+ bcopy(nfs_diskless.root_hostnam, nfsv3_diskless.root_hostnam, MNAMELEN);
+ nfsv3_diskless.root_time = nfs_diskless.root_time;
+ bcopy(nfs_diskless.my_hostnam, nfsv3_diskless.my_hostnam,
+ MAXHOSTNAMELEN);
+ nfs_diskless_valid = 3;
+}
+
+/*
+ * nfs statfs call
+ */
+static int
+nfs_statfs(struct mount *mp, struct statfs *sbp)
+{
+ struct vnode *vp;
+ struct thread *td;
+ struct nfsmount *nmp = VFSTONFS(mp);
+ struct nfsvattr nfsva;
+ struct nfsfsinfo fs;
+ struct nfsstatfs sb;
+ int error = 0, attrflag, gotfsinfo = 0, ret;
+ struct nfsnode *np;
+
+ td = curthread;
+
+ error = vfs_busy(mp, MBF_NOWAIT);
+ if (error)
+ return (error);
+ error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, LK_EXCLUSIVE);
+ if (error) {
+ vfs_unbusy(mp);
+ return (error);
+ }
+ vp = NFSTOV(np);
+ mtx_lock(&nmp->nm_mtx);
+ if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
+ mtx_unlock(&nmp->nm_mtx);
+ error = nfsrpc_fsinfo(vp, &fs, td->td_ucred, td, &nfsva,
+ &attrflag, NULL);
+ if (!error)
+ gotfsinfo = 1;
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+ if (!error)
+ error = nfsrpc_statfs(vp, &sb, &fs, td->td_ucred, td, &nfsva,
+ &attrflag, NULL);
+ if (error != 0)
+ NFSCL_DEBUG(2, "statfs=%d\n", error);
+ if (attrflag == 0) {
+ ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
+ td->td_ucred, td, &nfsva, NULL, NULL);
+ if (ret) {
+ /*
+ * Just set default values to get things going.
+ */
+ NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
+ nfsva.na_vattr.va_type = VDIR;
+ nfsva.na_vattr.va_mode = 0777;
+ nfsva.na_vattr.va_nlink = 100;
+ nfsva.na_vattr.va_uid = (uid_t)0;
+ nfsva.na_vattr.va_gid = (gid_t)0;
+ nfsva.na_vattr.va_fileid = 2;
+ nfsva.na_vattr.va_gen = 1;
+ nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
+ nfsva.na_vattr.va_size = 512 * 1024;
+ }
+ }
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ if (!error) {
+ mtx_lock(&nmp->nm_mtx);
+ if (gotfsinfo || (nmp->nm_flag & NFSMNT_NFSV4))
+ nfscl_loadfsinfo(nmp, &fs);
+ nfscl_loadsbinfo(nmp, &sb, sbp);
+ sbp->f_iosize = newnfs_iosize(nmp);
+ mtx_unlock(&nmp->nm_mtx);
+ if (sbp != &mp->mnt_stat) {
+ bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
+ bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
+ }
+ strncpy(&sbp->f_fstypename[0], mp->mnt_vfc->vfc_name, MFSNAMELEN);
+ } else if (NFS_ISV4(vp)) {
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ }
+ vput(vp);
+ vfs_unbusy(mp);
+ return (error);
+}
+
+/*
+ * nfs version 3 fsinfo rpc call
+ */
+int
+ncl_fsinfo(struct nfsmount *nmp, struct vnode *vp, struct ucred *cred,
+ struct thread *td)
+{
+ struct nfsfsinfo fs;
+ struct nfsvattr nfsva;
+ int error, attrflag;
+
+ error = nfsrpc_fsinfo(vp, &fs, cred, td, &nfsva, &attrflag, NULL);
+ if (!error) {
+ if (attrflag)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0,
+ 1);
+ mtx_lock(&nmp->nm_mtx);
+ nfscl_loadfsinfo(nmp, &fs);
+ mtx_unlock(&nmp->nm_mtx);
+ }
+ return (error);
+}
+
+/*
+ * Mount a remote root fs via. nfs. This depends on the info in the
+ * nfs_diskless structure that has been filled in properly by some primary
+ * bootstrap.
+ * It goes something like this:
+ * - do enough of "ifconfig" by calling ifioctl() so that the system
+ * can talk to the server
+ * - If nfs_diskless.mygateway is filled in, use that address as
+ * a default gateway.
+ * - build the rootfs mount point and call mountnfs() to do the rest.
+ *
+ * It is assumed to be safe to read, modify, and write the nfsv3_diskless
+ * structure, as well as other global NFS client variables here, as
+ * nfs_mountroot() will be called once in the boot before any other NFS
+ * client activity occurs.
+ */
+static int
+nfs_mountroot(struct mount *mp)
+{
+ struct thread *td = curthread;
+ struct nfsv3_diskless *nd = &nfsv3_diskless;
+ struct socket *so;
+ struct vnode *vp;
+ struct ifreq ir;
+ int error;
+ u_long l;
+ char buf[128];
+ char *cp;
+
+#if defined(BOOTP_NFSROOT) && defined(BOOTP)
+ bootpc_init(); /* use bootp to get nfs_diskless filled in */
+#elif defined(NFS_ROOT)
+ nfs_setup_diskless();
+#endif
+
+ if (nfs_diskless_valid == 0)
+ return (-1);
+ if (nfs_diskless_valid == 1)
+ nfs_convert_diskless();
+
+ /*
+ * Do enough of ifconfig(8) so that the critical net interface can
+ * talk to the server.
+ */
+ error = socreate(nd->myif.ifra_addr.sa_family, &so, nd->root_args.sotype, 0,
+ td->td_ucred, td);
+ if (error)
+ panic("nfs_mountroot: socreate(%04x): %d",
+ nd->myif.ifra_addr.sa_family, error);
+
+#if 0 /* XXX Bad idea */
+ /*
+ * We might not have been told the right interface, so we pass
+ * over the first ten interfaces of the same kind, until we get
+ * one of them configured.
+ */
+
+ for (i = strlen(nd->myif.ifra_name) - 1;
+ nd->myif.ifra_name[i] >= '0' &&
+ nd->myif.ifra_name[i] <= '9';
+ nd->myif.ifra_name[i] ++) {
+ error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
+ if(!error)
+ break;
+ }
+#endif
+ error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
+ if (error)
+ panic("nfs_mountroot: SIOCAIFADDR: %d", error);
+ if ((cp = kern_getenv("boot.netif.mtu")) != NULL) {
+ ir.ifr_mtu = strtol(cp, NULL, 10);
+ bcopy(nd->myif.ifra_name, ir.ifr_name, IFNAMSIZ);
+ freeenv(cp);
+ error = ifioctl(so, SIOCSIFMTU, (caddr_t)&ir, td);
+ if (error)
+ printf("nfs_mountroot: SIOCSIFMTU: %d", error);
+ }
+ soclose(so);
+
+ /*
+ * If the gateway field is filled in, set it as the default route.
+ * Note that pxeboot will set a default route of 0 if the route
+ * is not set by the DHCP server. Check also for a value of 0
+ * to avoid panicking inappropriately in that situation.
+ */
+ if (nd->mygateway.sin_len != 0 &&
+ nd->mygateway.sin_addr.s_addr != 0) {
+ struct sockaddr_in mask, sin;
+
+ bzero((caddr_t)&mask, sizeof(mask));
+ sin = mask;
+ sin.sin_family = AF_INET;
+ sin.sin_len = sizeof(sin);
+ /* XXX MRT use table 0 for this sort of thing */
+ CURVNET_SET(TD_TO_VNET(td));
+ error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&sin,
+ (struct sockaddr *)&nd->mygateway,
+ (struct sockaddr *)&mask,
+ RTF_UP | RTF_GATEWAY, NULL, RT_DEFAULT_FIB);
+ CURVNET_RESTORE();
+ if (error)
+ panic("nfs_mountroot: RTM_ADD: %d", error);
+ }
+
+ /*
+ * Create the rootfs mount point.
+ */
+ nd->root_args.fh = nd->root_fh;
+ nd->root_args.fhsize = nd->root_fhsize;
+ l = ntohl(nd->root_saddr.sin_addr.s_addr);
+ snprintf(buf, sizeof(buf), "%ld.%ld.%ld.%ld:%s",
+ (l >> 24) & 0xff, (l >> 16) & 0xff,
+ (l >> 8) & 0xff, (l >> 0) & 0xff, nd->root_hostnam);
+ printf("NFS ROOT: %s\n", buf);
+ nd->root_args.hostname = buf;
+ if ((error = nfs_mountdiskless(buf,
+ &nd->root_saddr, &nd->root_args, td, &vp, mp)) != 0) {
+ return (error);
+ }
+
+ /*
+ * This is not really an nfs issue, but it is much easier to
+ * set hostname here and then let the "/etc/rc.xxx" files
+ * mount the right /var based upon its preset value.
+ */
+ mtx_lock(&prison0.pr_mtx);
+ strlcpy(prison0.pr_hostname, nd->my_hostnam,
+ sizeof(prison0.pr_hostname));
+ mtx_unlock(&prison0.pr_mtx);
+ inittodr(ntohl(nd->root_time));
+ return (0);
+}
+
+/*
+ * Internal version of mount system call for diskless setup.
+ */
+static int
+nfs_mountdiskless(char *path,
+ struct sockaddr_in *sin, struct nfs_args *args, struct thread *td,
+ struct vnode **vpp, struct mount *mp)
+{
+ struct sockaddr *nam;
+ int dirlen, error;
+ char *dirpath;
+
+ /*
+ * Find the directory path in "path", which also has the server's
+ * name/ip address in it.
+ */
+ dirpath = strchr(path, ':');
+ if (dirpath != NULL)
+ dirlen = strlen(++dirpath);
+ else
+ dirlen = 0;
+ nam = sodupsockaddr((struct sockaddr *)sin, M_WAITOK);
+ if ((error = mountnfs(args, mp, nam, path, NULL, 0, dirpath, dirlen,
+ NULL, 0, vpp, td->td_ucred, td, NFS_DEFAULT_NAMETIMEO,
+ NFS_DEFAULT_NEGNAMETIMEO, 0)) != 0) {
+ printf("nfs_mountroot: mount %s on /: %d\n", path, error);
+ return (error);
+ }
+ return (0);
+}
+
+static void
+nfs_sec_name(char *sec, int *flagsp)
+{
+ if (!strcmp(sec, "krb5"))
+ *flagsp |= NFSMNT_KERB;
+ else if (!strcmp(sec, "krb5i"))
+ *flagsp |= (NFSMNT_KERB | NFSMNT_INTEGRITY);
+ else if (!strcmp(sec, "krb5p"))
+ *flagsp |= (NFSMNT_KERB | NFSMNT_PRIVACY);
+}
+
+static void
+nfs_decode_args(struct mount *mp, struct nfsmount *nmp, struct nfs_args *argp,
+ const char *hostname, struct ucred *cred, struct thread *td)
+{
+ int adjsock;
+ char *p;
+
+ /*
+ * Set read-only flag if requested; otherwise, clear it if this is
+ * an update. If this is not an update, then either the read-only
+ * flag is already clear, or this is a root mount and it was set
+ * intentionally at some previous point.
+ */
+ if (vfs_getopt(mp->mnt_optnew, "ro", NULL, NULL) == 0) {
+ MNT_ILOCK(mp);
+ mp->mnt_flag |= MNT_RDONLY;
+ MNT_IUNLOCK(mp);
+ } else if (mp->mnt_flag & MNT_UPDATE) {
+ MNT_ILOCK(mp);
+ mp->mnt_flag &= ~MNT_RDONLY;
+ MNT_IUNLOCK(mp);
+ }
+
+ /*
+ * Silently clear NFSMNT_NOCONN if it's a TCP mount, it makes
+ * no sense in that context. Also, set up appropriate retransmit
+ * and soft timeout behavior.
+ */
+ if (argp->sotype == SOCK_STREAM) {
+ nmp->nm_flag &= ~NFSMNT_NOCONN;
+ nmp->nm_timeo = NFS_MAXTIMEO;
+ if ((argp->flags & NFSMNT_NFSV4) != 0)
+ nmp->nm_retry = INT_MAX;
+ else
+ nmp->nm_retry = NFS_RETRANS_TCP;
+ }
+
+ /* Also clear RDIRPLUS if NFSv2, it crashes some servers */
+ if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
+ argp->flags &= ~NFSMNT_RDIRPLUS;
+ nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
+ }
+
+ /* Clear ONEOPENOWN for NFSv2, 3 and 4.0. */
+ if (nmp->nm_minorvers == 0) {
+ argp->flags &= ~NFSMNT_ONEOPENOWN;
+ nmp->nm_flag &= ~NFSMNT_ONEOPENOWN;
+ }
+
+ /* Re-bind if rsrvd port requested and wasn't on one */
+ adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT)
+ && (argp->flags & NFSMNT_RESVPORT);
+ /* Also re-bind if we're switching to/from a connected UDP socket */
+ adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) !=
+ (argp->flags & NFSMNT_NOCONN));
+
+ /* Update flags atomically. Don't change the lock bits. */
+ nmp->nm_flag = argp->flags | nmp->nm_flag;
+
+ if ((argp->flags & NFSMNT_TIMEO) && argp->timeo > 0) {
+ nmp->nm_timeo = (argp->timeo * NFS_HZ + 5) / 10;
+ if (nmp->nm_timeo < NFS_MINTIMEO)
+ nmp->nm_timeo = NFS_MINTIMEO;
+ else if (nmp->nm_timeo > NFS_MAXTIMEO)
+ nmp->nm_timeo = NFS_MAXTIMEO;
+ }
+
+ if ((argp->flags & NFSMNT_RETRANS) && argp->retrans > 1) {
+ nmp->nm_retry = argp->retrans;
+ if (nmp->nm_retry > NFS_MAXREXMIT)
+ nmp->nm_retry = NFS_MAXREXMIT;
+ }
+
+ if ((argp->flags & NFSMNT_WSIZE) && argp->wsize > 0) {
+ nmp->nm_wsize = argp->wsize;
+ /*
+ * Clip at the power of 2 below the size. There is an
+ * issue (not isolated) that causes intermittent page
+ * faults if this is not done.
+ */
+ if (nmp->nm_wsize > NFS_FABLKSIZE)
+ nmp->nm_wsize = 1 << (fls(nmp->nm_wsize) - 1);
+ else
+ nmp->nm_wsize = NFS_FABLKSIZE;
+ }
+
+ if ((argp->flags & NFSMNT_RSIZE) && argp->rsize > 0) {
+ nmp->nm_rsize = argp->rsize;
+ /*
+ * Clip at the power of 2 below the size. There is an
+ * issue (not isolated) that causes intermittent page
+ * faults if this is not done.
+ */
+ if (nmp->nm_rsize > NFS_FABLKSIZE)
+ nmp->nm_rsize = 1 << (fls(nmp->nm_rsize) - 1);
+ else
+ nmp->nm_rsize = NFS_FABLKSIZE;
+ }
+
+ if ((argp->flags & NFSMNT_READDIRSIZE) && argp->readdirsize > 0) {
+ nmp->nm_readdirsize = argp->readdirsize;
+ }
+
+ if ((argp->flags & NFSMNT_ACREGMIN) && argp->acregmin >= 0)
+ nmp->nm_acregmin = argp->acregmin;
+ else
+ nmp->nm_acregmin = NFS_MINATTRTIMO;
+ if ((argp->flags & NFSMNT_ACREGMAX) && argp->acregmax >= 0)
+ nmp->nm_acregmax = argp->acregmax;
+ else
+ nmp->nm_acregmax = NFS_MAXATTRTIMO;
+ if ((argp->flags & NFSMNT_ACDIRMIN) && argp->acdirmin >= 0)
+ nmp->nm_acdirmin = argp->acdirmin;
+ else
+ nmp->nm_acdirmin = NFS_MINDIRATTRTIMO;
+ if ((argp->flags & NFSMNT_ACDIRMAX) && argp->acdirmax >= 0)
+ nmp->nm_acdirmax = argp->acdirmax;
+ else
+ nmp->nm_acdirmax = NFS_MAXDIRATTRTIMO;
+ if (nmp->nm_acdirmin > nmp->nm_acdirmax)
+ nmp->nm_acdirmin = nmp->nm_acdirmax;
+ if (nmp->nm_acregmin > nmp->nm_acregmax)
+ nmp->nm_acregmin = nmp->nm_acregmax;
+
+ if ((argp->flags & NFSMNT_READAHEAD) && argp->readahead >= 0) {
+ if (argp->readahead <= NFS_MAXRAHEAD)
+ nmp->nm_readahead = argp->readahead;
+ else
+ nmp->nm_readahead = NFS_MAXRAHEAD;
+ }
+ if ((argp->flags & NFSMNT_WCOMMITSIZE) && argp->wcommitsize >= 0) {
+ if (argp->wcommitsize < nmp->nm_wsize)
+ nmp->nm_wcommitsize = nmp->nm_wsize;
+ else
+ nmp->nm_wcommitsize = argp->wcommitsize;
+ }
+
+ adjsock |= ((nmp->nm_sotype != argp->sotype) ||
+ (nmp->nm_soproto != argp->proto));
+
+ if (nmp->nm_client != NULL && adjsock) {
+ int haslock = 0, error = 0;
+
+ if (nmp->nm_sotype == SOCK_STREAM) {
+ error = newnfs_sndlock(&nmp->nm_sockreq.nr_lock);
+ if (!error)
+ haslock = 1;
+ }
+ if (!error) {
+ newnfs_disconnect(&nmp->nm_sockreq);
+ if (haslock)
+ newnfs_sndunlock(&nmp->nm_sockreq.nr_lock);
+ nmp->nm_sotype = argp->sotype;
+ nmp->nm_soproto = argp->proto;
+ if (nmp->nm_sotype == SOCK_DGRAM)
+ while (newnfs_connect(nmp, &nmp->nm_sockreq,
+ cred, td, 0)) {
+ printf("newnfs_args: retrying connect\n");
+ (void) nfs_catnap(PSOCK, 0, "nfscon");
+ }
+ }
+ } else {
+ nmp->nm_sotype = argp->sotype;
+ nmp->nm_soproto = argp->proto;
+ }
+
+ if (hostname != NULL) {
+ strlcpy(nmp->nm_hostname, hostname,
+ sizeof(nmp->nm_hostname));
+ p = strchr(nmp->nm_hostname, ':');
+ if (p != NULL)
+ *p = '\0';
+ }
+}
+
+static const char *nfs_opts[] = { "from", "nfs_args",
+ "noac", "noatime", "noexec", "suiddir", "nosuid", "nosymfollow", "union",
+ "noclusterr", "noclusterw", "multilabel", "acls", "force", "update",
+ "async", "noconn", "nolockd", "conn", "lockd", "intr", "rdirplus",
+ "readdirsize", "soft", "hard", "mntudp", "tcp", "udp", "wsize", "rsize",
+ "retrans", "actimeo", "acregmin", "acregmax", "acdirmin", "acdirmax",
+ "resvport", "readahead", "hostname", "timeo", "timeout", "addr", "fh",
+ "nfsv3", "sec", "principal", "nfsv4", "gssname", "allgssname", "dirpath",
+ "minorversion", "nametimeo", "negnametimeo", "nocto", "noncontigwr",
+ "pnfs", "wcommitsize", "oneopenown",
+ NULL };
+
+/*
+ * Parse the "from" mountarg, passed by the generic mount(8) program
+ * or the mountroot code. This is used when rerooting into NFS.
+ *
+ * Note that the "hostname" is actually a "hostname:/share/path" string.
+ */
+static int
+nfs_mount_parse_from(struct vfsoptlist *opts, char **hostnamep,
+ struct sockaddr_in **sinp, char *dirpath, size_t dirpathsize, int *dirlenp)
+{
+ char *nam, *delimp, *hostp, *spec;
+ int error, have_bracket = 0, offset, rv, speclen;
+ struct sockaddr_in *sin;
+ size_t len;
+
+ error = vfs_getopt(opts, "from", (void **)&spec, &speclen);
+ if (error != 0)
+ return (error);
+ nam = malloc(MNAMELEN + 1, M_TEMP, M_WAITOK);
+
+ /*
+ * This part comes from sbin/mount_nfs/mount_nfs.c:getnfsargs().
+ */
+ if (*spec == '[' && (delimp = strchr(spec + 1, ']')) != NULL &&
+ *(delimp + 1) == ':') {
+ hostp = spec + 1;
+ spec = delimp + 2;
+ have_bracket = 1;
+ } else if ((delimp = strrchr(spec, ':')) != NULL) {
+ hostp = spec;
+ spec = delimp + 1;
+ } else if ((delimp = strrchr(spec, '@')) != NULL) {
+ printf("%s: path at server syntax is deprecated, "
+ "use server:path\n", __func__);
+ hostp = delimp + 1;
+ } else {
+ printf("%s: no <host>:<dirpath> nfs-name\n", __func__);
+ free(nam, M_TEMP);
+ return (EINVAL);
+ }
+ *delimp = '\0';
+
+ /*
+ * If there has been a trailing slash at mounttime it seems
+ * that some mountd implementations fail to remove the mount
+ * entries from their mountlist while unmounting.
+ */
+ for (speclen = strlen(spec);
+ speclen > 1 && spec[speclen - 1] == '/';
+ speclen--)
+ spec[speclen - 1] = '\0';
+ if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
+ printf("%s: %s:%s: name too long", __func__, hostp, spec);
+ free(nam, M_TEMP);
+ return (EINVAL);
+ }
+ /* Make both '@' and ':' notations equal */
+ if (*hostp != '\0') {
+ len = strlen(hostp);
+ offset = 0;
+ if (have_bracket)
+ nam[offset++] = '[';
+ memmove(nam + offset, hostp, len);
+ if (have_bracket)
+ nam[len + offset++] = ']';
+ nam[len + offset++] = ':';
+ memmove(nam + len + offset, spec, speclen);
+ nam[len + speclen + offset] = '\0';
+ } else
+ nam[0] = '\0';
+
+ /*
+ * XXX: IPv6
+ */
+ sin = malloc(sizeof(*sin), M_SONAME, M_WAITOK);
+ rv = inet_pton(AF_INET, hostp, &sin->sin_addr);
+ if (rv != 1) {
+ printf("%s: cannot parse '%s', inet_pton() returned %d\n",
+ __func__, hostp, rv);
+ free(nam, M_TEMP);
+ free(sin, M_SONAME);
+ return (EINVAL);
+ }
+
+ sin->sin_len = sizeof(*sin);
+ sin->sin_family = AF_INET;
+ /*
+ * XXX: hardcoded port number.
+ */
+ sin->sin_port = htons(2049);
+
+ *hostnamep = strdup(nam, M_NEWNFSMNT);
+ *sinp = sin;
+ strlcpy(dirpath, spec, dirpathsize);
+ *dirlenp = strlen(dirpath);
+
+ free(nam, M_TEMP);
+ return (0);
+}
+
+/*
+ * VFS Operations.
+ *
+ * mount system call
+ * It seems a bit dumb to copyinstr() the host and path here and then
+ * bcopy() them in mountnfs(), but I wanted to detect errors before
+ * doing the getsockaddr() call because getsockaddr() allocates an mbuf and
+ * an error after that means that I have to release the mbuf.
+ */
+/* ARGSUSED */
+static int
+nfs_mount(struct mount *mp)
+{
+ struct nfs_args args = {
+ .version = NFS_ARGSVERSION,
+ .addr = NULL,
+ .addrlen = sizeof (struct sockaddr_in),
+ .sotype = SOCK_STREAM,
+ .proto = 0,
+ .fh = NULL,
+ .fhsize = 0,
+ .flags = NFSMNT_RESVPORT,
+ .wsize = NFS_WSIZE,
+ .rsize = NFS_RSIZE,
+ .readdirsize = NFS_READDIRSIZE,
+ .timeo = 10,
+ .retrans = NFS_RETRANS,
+ .readahead = NFS_DEFRAHEAD,
+ .wcommitsize = 0, /* was: NQ_DEFLEASE */
+ .hostname = NULL,
+ .acregmin = NFS_MINATTRTIMO,
+ .acregmax = NFS_MAXATTRTIMO,
+ .acdirmin = NFS_MINDIRATTRTIMO,
+ .acdirmax = NFS_MAXDIRATTRTIMO,
+ };
+ int error = 0, ret, len;
+ struct sockaddr *nam = NULL;
+ struct vnode *vp;
+ struct thread *td;
+ char *hst;
+ u_char nfh[NFSX_FHMAX], krbname[100], dirpath[100], srvkrbname[100];
+ char *cp, *opt, *name, *secname;
+ int nametimeo = NFS_DEFAULT_NAMETIMEO;
+ int negnametimeo = NFS_DEFAULT_NEGNAMETIMEO;
+ int minvers = 0;
+ int dirlen, has_nfs_args_opt, has_nfs_from_opt,
+ krbnamelen, srvkrbnamelen;
+ size_t hstlen;
+
+ has_nfs_args_opt = 0;
+ has_nfs_from_opt = 0;
+ hst = malloc(MNAMELEN, M_TEMP, M_WAITOK);
+ if (vfs_filteropt(mp->mnt_optnew, nfs_opts)) {
+ error = EINVAL;
+ goto out;
+ }
+
+ td = curthread;
+ if ((mp->mnt_flag & (MNT_ROOTFS | MNT_UPDATE)) == MNT_ROOTFS &&
+ nfs_diskless_valid != 0) {
+ error = nfs_mountroot(mp);
+ goto out;
+ }
+
+ nfscl_init();
+
+ /*
+ * The old mount_nfs program passed the struct nfs_args
+ * from userspace to kernel. The new mount_nfs program
+ * passes string options via nmount() from userspace to kernel
+ * and we populate the struct nfs_args in the kernel.
+ */
+ if (vfs_getopt(mp->mnt_optnew, "nfs_args", NULL, NULL) == 0) {
+ error = vfs_copyopt(mp->mnt_optnew, "nfs_args", &args,
+ sizeof(args));
+ if (error != 0)
+ goto out;
+
+ if (args.version != NFS_ARGSVERSION) {
+ error = EPROGMISMATCH;
+ goto out;
+ }
+ has_nfs_args_opt = 1;
+ }
+
+ /* Handle the new style options. */
+ if (vfs_getopt(mp->mnt_optnew, "noac", NULL, NULL) == 0) {
+ args.acdirmin = args.acdirmax =
+ args.acregmin = args.acregmax = 0;
+ args.flags |= NFSMNT_ACDIRMIN | NFSMNT_ACDIRMAX |
+ NFSMNT_ACREGMIN | NFSMNT_ACREGMAX;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "noconn", NULL, NULL) == 0)
+ args.flags |= NFSMNT_NOCONN;
+ if (vfs_getopt(mp->mnt_optnew, "conn", NULL, NULL) == 0)
+ args.flags &= ~NFSMNT_NOCONN;
+ if (vfs_getopt(mp->mnt_optnew, "nolockd", NULL, NULL) == 0)
+ args.flags |= NFSMNT_NOLOCKD;
+ if (vfs_getopt(mp->mnt_optnew, "lockd", NULL, NULL) == 0)
+ args.flags &= ~NFSMNT_NOLOCKD;
+ if (vfs_getopt(mp->mnt_optnew, "intr", NULL, NULL) == 0)
+ args.flags |= NFSMNT_INT;
+ if (vfs_getopt(mp->mnt_optnew, "rdirplus", NULL, NULL) == 0)
+ args.flags |= NFSMNT_RDIRPLUS;
+ if (vfs_getopt(mp->mnt_optnew, "resvport", NULL, NULL) == 0)
+ args.flags |= NFSMNT_RESVPORT;
+ if (vfs_getopt(mp->mnt_optnew, "noresvport", NULL, NULL) == 0)
+ args.flags &= ~NFSMNT_RESVPORT;
+ if (vfs_getopt(mp->mnt_optnew, "soft", NULL, NULL) == 0)
+ args.flags |= NFSMNT_SOFT;
+ if (vfs_getopt(mp->mnt_optnew, "hard", NULL, NULL) == 0)
+ args.flags &= ~NFSMNT_SOFT;
+ if (vfs_getopt(mp->mnt_optnew, "mntudp", NULL, NULL) == 0)
+ args.sotype = SOCK_DGRAM;
+ if (vfs_getopt(mp->mnt_optnew, "udp", NULL, NULL) == 0)
+ args.sotype = SOCK_DGRAM;
+ if (vfs_getopt(mp->mnt_optnew, "tcp", NULL, NULL) == 0)
+ args.sotype = SOCK_STREAM;
+ if (vfs_getopt(mp->mnt_optnew, "nfsv3", NULL, NULL) == 0)
+ args.flags |= NFSMNT_NFSV3;
+ if (vfs_getopt(mp->mnt_optnew, "nfsv4", NULL, NULL) == 0) {
+ args.flags |= NFSMNT_NFSV4;
+ args.sotype = SOCK_STREAM;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "allgssname", NULL, NULL) == 0)
+ args.flags |= NFSMNT_ALLGSSNAME;
+ if (vfs_getopt(mp->mnt_optnew, "nocto", NULL, NULL) == 0)
+ args.flags |= NFSMNT_NOCTO;
+ if (vfs_getopt(mp->mnt_optnew, "noncontigwr", NULL, NULL) == 0)
+ args.flags |= NFSMNT_NONCONTIGWR;
+ if (vfs_getopt(mp->mnt_optnew, "pnfs", NULL, NULL) == 0)
+ args.flags |= NFSMNT_PNFS;
+ if (vfs_getopt(mp->mnt_optnew, "oneopenown", NULL, NULL) == 0)
+ args.flags |= NFSMNT_ONEOPENOWN;
+ if (vfs_getopt(mp->mnt_optnew, "readdirsize", (void **)&opt, NULL) == 0) {
+ if (opt == NULL) {
+ vfs_mount_error(mp, "illegal readdirsize");
+ error = EINVAL;
+ goto out;
+ }
+ ret = sscanf(opt, "%d", &args.readdirsize);
+ if (ret != 1 || args.readdirsize <= 0) {
+ vfs_mount_error(mp, "illegal readdirsize: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_READDIRSIZE;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "readahead", (void **)&opt, NULL) == 0) {
+ if (opt == NULL) {
+ vfs_mount_error(mp, "illegal readahead");
+ error = EINVAL;
+ goto out;
+ }
+ ret = sscanf(opt, "%d", &args.readahead);
+ if (ret != 1 || args.readahead <= 0) {
+ vfs_mount_error(mp, "illegal readahead: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_READAHEAD;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "wsize", (void **)&opt, NULL) == 0) {
+ if (opt == NULL) {
+ vfs_mount_error(mp, "illegal wsize");
+ error = EINVAL;
+ goto out;
+ }
+ ret = sscanf(opt, "%d", &args.wsize);
+ if (ret != 1 || args.wsize <= 0) {
+ vfs_mount_error(mp, "illegal wsize: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_WSIZE;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "rsize", (void **)&opt, NULL) == 0) {
+ if (opt == NULL) {
+ vfs_mount_error(mp, "illegal rsize");
+ error = EINVAL;
+ goto out;
+ }
+ ret = sscanf(opt, "%d", &args.rsize);
+ if (ret != 1 || args.rsize <= 0) {
+ vfs_mount_error(mp, "illegal wsize: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_RSIZE;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "retrans", (void **)&opt, NULL) == 0) {
+ if (opt == NULL) {
+ vfs_mount_error(mp, "illegal retrans");
+ error = EINVAL;
+ goto out;
+ }
+ ret = sscanf(opt, "%d", &args.retrans);
+ if (ret != 1 || args.retrans <= 0) {
+ vfs_mount_error(mp, "illegal retrans: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_RETRANS;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "actimeo", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.acregmin);
+ if (ret != 1 || args.acregmin < 0) {
+ vfs_mount_error(mp, "illegal actimeo: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.acdirmin = args.acdirmax = args.acregmax = args.acregmin;
+ args.flags |= NFSMNT_ACDIRMIN | NFSMNT_ACDIRMAX |
+ NFSMNT_ACREGMIN | NFSMNT_ACREGMAX;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "acregmin", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.acregmin);
+ if (ret != 1 || args.acregmin < 0) {
+ vfs_mount_error(mp, "illegal acregmin: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_ACREGMIN;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "acregmax", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.acregmax);
+ if (ret != 1 || args.acregmax < 0) {
+ vfs_mount_error(mp, "illegal acregmax: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_ACREGMAX;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "acdirmin", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.acdirmin);
+ if (ret != 1 || args.acdirmin < 0) {
+ vfs_mount_error(mp, "illegal acdirmin: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_ACDIRMIN;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "acdirmax", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.acdirmax);
+ if (ret != 1 || args.acdirmax < 0) {
+ vfs_mount_error(mp, "illegal acdirmax: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_ACDIRMAX;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.wcommitsize);
+ if (ret != 1 || args.wcommitsize < 0) {
+ vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_WCOMMITSIZE;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "timeo", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.timeo);
+ if (ret != 1 || args.timeo <= 0) {
+ vfs_mount_error(mp, "illegal timeo: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_TIMEO;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "timeout", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &args.timeo);
+ if (ret != 1 || args.timeo <= 0) {
+ vfs_mount_error(mp, "illegal timeout: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ args.flags |= NFSMNT_TIMEO;
+ }
+ if (vfs_getopt(mp->mnt_optnew, "nametimeo", (void **)&opt, NULL) == 0) {
+ ret = sscanf(opt, "%d", &nametimeo);
+ if (ret != 1 || nametimeo < 0) {
+ vfs_mount_error(mp, "illegal nametimeo: %s", opt);
+ error = EINVAL;
+ goto out;
+ }
+ }
+ if (vfs_getopt(mp->mnt_optnew, "negnametimeo", (void **)&opt, NULL)
+ == 0) {
+ ret = sscanf(opt, "%d", &negnametimeo);
+ if (ret != 1 || negnametimeo < 0) {
+ vfs_mount_error(mp, "illegal negnametimeo: %s",
+ opt);
+ error = EINVAL;
+ goto out;
+ }
+ }
+ if (vfs_getopt(mp->mnt_optnew, "minorversion", (void **)&opt, NULL) ==
+ 0) {
+ ret = sscanf(opt, "%d", &minvers);
+ if (ret != 1 || minvers < 0 || minvers > 1 ||
+ (args.flags & NFSMNT_NFSV4) == 0) {
+ vfs_mount_error(mp, "illegal minorversion: %s", opt);
+ error = EINVAL;
+ goto out;
+ }
+ }
+ if (vfs_getopt(mp->mnt_optnew, "sec",
+ (void **) &secname, NULL) == 0)
+ nfs_sec_name(secname, &args.flags);
+
+ if (mp->mnt_flag & MNT_UPDATE) {
+ struct nfsmount *nmp = VFSTONFS(mp);
+
+ if (nmp == NULL) {
+ error = EIO;
+ goto out;
+ }
+
+ /*
+ * If a change from TCP->UDP is done and there are thread(s)
+ * that have I/O RPC(s) in progress with a transfer size
+ * greater than NFS_MAXDGRAMDATA, those thread(s) will be
+ * hung, retrying the RPC(s) forever. Usually these threads
+ * will be seen doing an uninterruptible sleep on wait channel
+ * "nfsreq".
+ */
+ if (args.sotype == SOCK_DGRAM && nmp->nm_sotype == SOCK_STREAM)
+ tprintf(td->td_proc, LOG_WARNING,
+ "Warning: mount -u that changes TCP->UDP can result in hung threads\n");
+
+ /*
+ * When doing an update, we can't change version,
+ * security, switch lockd strategies, change cookie
+ * translation or switch oneopenown.
+ */
+ args.flags = (args.flags &
+ ~(NFSMNT_NFSV3 |
+ NFSMNT_NFSV4 |
+ NFSMNT_KERB |
+ NFSMNT_INTEGRITY |
+ NFSMNT_PRIVACY |
+ NFSMNT_ONEOPENOWN |
+ NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/)) |
+ (nmp->nm_flag &
+ (NFSMNT_NFSV3 |
+ NFSMNT_NFSV4 |
+ NFSMNT_KERB |
+ NFSMNT_INTEGRITY |
+ NFSMNT_PRIVACY |
+ NFSMNT_ONEOPENOWN |
+ NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/));
+ nfs_decode_args(mp, nmp, &args, NULL, td->td_ucred, td);
+ goto out;
+ }
+
+ /*
+ * Make the nfs_ip_paranoia sysctl serve as the default connection
+ * or no-connection mode for those protocols that support
+ * no-connection mode (the flag will be cleared later for protocols
+ * that do not support no-connection mode). This will allow a client
+ * to receive replies from a different IP then the request was
+ * sent to. Note: default value for nfs_ip_paranoia is 1 (paranoid),
+ * not 0.
+ */
+ if (nfs_ip_paranoia == 0)
+ args.flags |= NFSMNT_NOCONN;
+
+ if (has_nfs_args_opt != 0) {
+ /*
+ * In the 'nfs_args' case, the pointers in the args
+ * structure are in userland - we copy them in here.
+ */
+ if (args.fhsize < 0 || args.fhsize > NFSX_V3FHMAX) {
+ vfs_mount_error(mp, "Bad file handle");
+ error = EINVAL;
+ goto out;
+ }
+ error = copyin((caddr_t)args.fh, (caddr_t)nfh,
+ args.fhsize);
+ if (error != 0)
+ goto out;
+ error = copyinstr(args.hostname, hst, MNAMELEN - 1, &hstlen);
+ if (error != 0)
+ goto out;
+ bzero(&hst[hstlen], MNAMELEN - hstlen);
+ args.hostname = hst;
+ /* getsockaddr() call must be after above copyin() calls */
+ error = getsockaddr(&nam, (caddr_t)args.addr,
+ args.addrlen);
+ if (error != 0)
+ goto out;
+ } else if (nfs_mount_parse_from(mp->mnt_optnew,
+ &args.hostname, (struct sockaddr_in **)&nam, dirpath,
+ sizeof(dirpath), &dirlen) == 0) {
+ has_nfs_from_opt = 1;
+ bcopy(args.hostname, hst, MNAMELEN);
+ hst[MNAMELEN - 1] = '\0';
+
+ /*
+ * This only works with NFSv4 for now.
+ */
+ args.fhsize = 0;
+ args.flags |= NFSMNT_NFSV4;
+ args.sotype = SOCK_STREAM;
+ } else {
+ if (vfs_getopt(mp->mnt_optnew, "fh", (void **)&args.fh,
+ &args.fhsize) == 0) {
+ if (args.fhsize < 0 || args.fhsize > NFSX_FHMAX) {
+ vfs_mount_error(mp, "Bad file handle");
+ error = EINVAL;
+ goto out;
+ }
+ bcopy(args.fh, nfh, args.fhsize);
+ } else {
+ args.fhsize = 0;
+ }
+ (void) vfs_getopt(mp->mnt_optnew, "hostname",
+ (void **)&args.hostname, &len);
+ if (args.hostname == NULL) {
+ vfs_mount_error(mp, "Invalid hostname");
+ error = EINVAL;
+ goto out;
+ }
+ if (len >= MNAMELEN) {
+ vfs_mount_error(mp, "Hostname too long");
+ error = EINVAL;
+ goto out;
+ }
+ bcopy(args.hostname, hst, len);
+ hst[len] = '\0';
+ }
+
+ if (vfs_getopt(mp->mnt_optnew, "principal", (void **)&name, NULL) == 0)
+ strlcpy(srvkrbname, name, sizeof (srvkrbname));
+ else {
+ snprintf(srvkrbname, sizeof (srvkrbname), "nfs@%s", hst);
+ cp = strchr(srvkrbname, ':');
+ if (cp != NULL)
+ *cp = '\0';
+ }
+ srvkrbnamelen = strlen(srvkrbname);
+
+ if (vfs_getopt(mp->mnt_optnew, "gssname", (void **)&name, NULL) == 0)
+ strlcpy(krbname, name, sizeof (krbname));
+ else
+ krbname[0] = '\0';
+ krbnamelen = strlen(krbname);
+
+ if (has_nfs_from_opt == 0) {
+ if (vfs_getopt(mp->mnt_optnew,
+ "dirpath", (void **)&name, NULL) == 0)
+ strlcpy(dirpath, name, sizeof (dirpath));
+ else
+ dirpath[0] = '\0';
+ dirlen = strlen(dirpath);
+ }
+
+ if (has_nfs_args_opt == 0 && has_nfs_from_opt == 0) {
+ if (vfs_getopt(mp->mnt_optnew, "addr",
+ (void **)&args.addr, &args.addrlen) == 0) {
+ if (args.addrlen > SOCK_MAXADDRLEN) {
+ error = ENAMETOOLONG;
+ goto out;
+ }
+ nam = malloc(args.addrlen, M_SONAME, M_WAITOK);
+ bcopy(args.addr, nam, args.addrlen);
+ nam->sa_len = args.addrlen;
+ } else {
+ vfs_mount_error(mp, "No server address");
+ error = EINVAL;
+ goto out;
+ }
+ }
+
+ args.fh = nfh;
+ error = mountnfs(&args, mp, nam, hst, krbname, krbnamelen, dirpath,
+ dirlen, srvkrbname, srvkrbnamelen, &vp, td->td_ucred, td,
+ nametimeo, negnametimeo, minvers);
+out:
+ if (!error) {
+ MNT_ILOCK(mp);
+ mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_NO_IOPF |
+ MNTK_USES_BCACHE;
+ if ((VFSTONFS(mp)->nm_flag & NFSMNT_NFSV4) != 0)
+ mp->mnt_kern_flag |= MNTK_NULL_NOCACHE;
+ MNT_IUNLOCK(mp);
+ }
+ free(hst, M_TEMP);
+ return (error);
+}
+
+
+/*
+ * VFS Operations.
+ *
+ * mount system call
+ * It seems a bit dumb to copyinstr() the host and path here and then
+ * bcopy() them in mountnfs(), but I wanted to detect errors before
+ * doing the getsockaddr() call because getsockaddr() allocates an mbuf and
+ * an error after that means that I have to release the mbuf.
+ */
+/* ARGSUSED */
+static int
+nfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
+{
+ int error;
+ struct nfs_args args;
+
+ error = copyin(data, &args, sizeof (struct nfs_args));
+ if (error)
+ return error;
+
+ ma = mount_arg(ma, "nfs_args", &args, sizeof args);
+
+ error = kernel_mount(ma, flags);
+ return (error);
+}
+
+/*
+ * Common code for mount and mountroot
+ */
+static int
+mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam,
+ char *hst, u_char *krbname, int krbnamelen, u_char *dirpath, int dirlen,
+ u_char *srvkrbname, int srvkrbnamelen, struct vnode **vpp,
+ struct ucred *cred, struct thread *td, int nametimeo, int negnametimeo,
+ int minvers)
+{
+ struct nfsmount *nmp;
+ struct nfsnode *np;
+ int error, trycnt, ret;
+ struct nfsvattr nfsva;
+ struct nfsclclient *clp;
+ struct nfsclds *dsp, *tdsp;
+ uint32_t lease;
+ static u_int64_t clval = 0;
+
+ NFSCL_DEBUG(3, "in mnt\n");
+ clp = NULL;
+ if (mp->mnt_flag & MNT_UPDATE) {
+ nmp = VFSTONFS(mp);
+ printf("%s: MNT_UPDATE is no longer handled here\n", __func__);
+ free(nam, M_SONAME);
+ return (0);
+ } else {
+ nmp = malloc(sizeof (struct nfsmount) +
+ krbnamelen + dirlen + srvkrbnamelen + 2,
+ M_NEWNFSMNT, M_WAITOK | M_ZERO);
+ TAILQ_INIT(&nmp->nm_bufq);
+ TAILQ_INIT(&nmp->nm_sess);
+ if (clval == 0)
+ clval = (u_int64_t)nfsboottime.tv_sec;
+ nmp->nm_clval = clval++;
+ nmp->nm_krbnamelen = krbnamelen;
+ nmp->nm_dirpathlen = dirlen;
+ nmp->nm_srvkrbnamelen = srvkrbnamelen;
+ if (td->td_ucred->cr_uid != (uid_t)0) {
+ /*
+ * nm_uid is used to get KerberosV credentials for
+ * the nfsv4 state handling operations if there is
+ * no host based principal set. Use the uid of
+ * this user if not root, since they are doing the
+ * mount. I don't think setting this for root will
+ * work, since root normally does not have user
+ * credentials in a credentials cache.
+ */
+ nmp->nm_uid = td->td_ucred->cr_uid;
+ } else {
+ /*
+ * Just set to -1, so it won't be used.
+ */
+ nmp->nm_uid = (uid_t)-1;
+ }
+
+ /* Copy and null terminate all the names */
+ if (nmp->nm_krbnamelen > 0) {
+ bcopy(krbname, nmp->nm_krbname, nmp->nm_krbnamelen);
+ nmp->nm_name[nmp->nm_krbnamelen] = '\0';
+ }
+ if (nmp->nm_dirpathlen > 0) {
+ bcopy(dirpath, NFSMNT_DIRPATH(nmp),
+ nmp->nm_dirpathlen);
+ nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
+ + 1] = '\0';
+ }
+ if (nmp->nm_srvkrbnamelen > 0) {
+ bcopy(srvkrbname, NFSMNT_SRVKRBNAME(nmp),
+ nmp->nm_srvkrbnamelen);
+ nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
+ + nmp->nm_srvkrbnamelen + 2] = '\0';
+ }
+ nmp->nm_sockreq.nr_cred = crhold(cred);
+ mtx_init(&nmp->nm_sockreq.nr_mtx, "nfssock", NULL, MTX_DEF);
+ mp->mnt_data = nmp;
+ nmp->nm_getinfo = nfs_getnlminfo;
+ nmp->nm_vinvalbuf = ncl_vinvalbuf;
+ }
+ vfs_getnewfsid(mp);
+ nmp->nm_mountp = mp;
+ mtx_init(&nmp->nm_mtx, "NFSmount lock", NULL, MTX_DEF | MTX_DUPOK);
+
+ /*
+ * Since nfs_decode_args() might optionally set them, these
+ * need to be set to defaults before the call, so that the
+ * optional settings aren't overwritten.
+ */
+ nmp->nm_nametimeo = nametimeo;
+ nmp->nm_negnametimeo = negnametimeo;
+ nmp->nm_timeo = NFS_TIMEO;
+ nmp->nm_retry = NFS_RETRANS;
+ nmp->nm_readahead = NFS_DEFRAHEAD;
+
+ /* This is empirical approximation of sqrt(hibufspace) * 256. */
+ nmp->nm_wcommitsize = NFS_MAXBSIZE / 256;
+ while ((long)nmp->nm_wcommitsize * nmp->nm_wcommitsize < hibufspace)
+ nmp->nm_wcommitsize *= 2;
+ nmp->nm_wcommitsize *= 256;
+
+ if ((argp->flags & NFSMNT_NFSV4) != 0)
+ nmp->nm_minorvers = minvers;
+ else
+ nmp->nm_minorvers = 0;
+
+ nfs_decode_args(mp, nmp, argp, hst, cred, td);
+
+ /*
+ * V2 can only handle 32 bit filesizes. A 4GB-1 limit may be too
+ * high, depending on whether we end up with negative offsets in
+ * the client or server somewhere. 2GB-1 may be safer.
+ *
+ * For V3, ncl_fsinfo will adjust this as necessary. Assume maximum
+ * that we can handle until we find out otherwise.
+ */
+ if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0)
+ nmp->nm_maxfilesize = 0xffffffffLL;
+ else
+ nmp->nm_maxfilesize = OFF_MAX;
+
+ if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
+ nmp->nm_wsize = NFS_WSIZE;
+ nmp->nm_rsize = NFS_RSIZE;
+ nmp->nm_readdirsize = NFS_READDIRSIZE;
+ }
+ nmp->nm_numgrps = NFS_MAXGRPS;
+ nmp->nm_tprintf_delay = nfs_tprintf_delay;
+ if (nmp->nm_tprintf_delay < 0)
+ nmp->nm_tprintf_delay = 0;
+ nmp->nm_tprintf_initial_delay = nfs_tprintf_initial_delay;
+ if (nmp->nm_tprintf_initial_delay < 0)
+ nmp->nm_tprintf_initial_delay = 0;
+ nmp->nm_fhsize = argp->fhsize;
+ if (nmp->nm_fhsize > 0)
+ bcopy((caddr_t)argp->fh, (caddr_t)nmp->nm_fh, argp->fhsize);
+ bcopy(hst, mp->mnt_stat.f_mntfromname, MNAMELEN);
+ nmp->nm_nam = nam;
+ /* Set up the sockets and per-host congestion */
+ nmp->nm_sotype = argp->sotype;
+ nmp->nm_soproto = argp->proto;
+ nmp->nm_sockreq.nr_prog = NFS_PROG;
+ if ((argp->flags & NFSMNT_NFSV4))
+ nmp->nm_sockreq.nr_vers = NFS_VER4;
+ else if ((argp->flags & NFSMNT_NFSV3))
+ nmp->nm_sockreq.nr_vers = NFS_VER3;
+ else
+ nmp->nm_sockreq.nr_vers = NFS_VER2;
+
+
+ if ((error = newnfs_connect(nmp, &nmp->nm_sockreq, cred, td, 0)))
+ goto bad;
+ /* For NFSv4.1, get the clientid now. */
+ if (nmp->nm_minorvers > 0) {
+ NFSCL_DEBUG(3, "at getcl\n");
+ error = nfscl_getcl(mp, cred, td, 0, &clp);
+ NFSCL_DEBUG(3, "aft getcl=%d\n", error);
+ if (error != 0)
+ goto bad;
+ }
+
+ if (nmp->nm_fhsize == 0 && (nmp->nm_flag & NFSMNT_NFSV4) &&
+ nmp->nm_dirpathlen > 0) {
+ NFSCL_DEBUG(3, "in dirp\n");
+ /*
+ * If the fhsize on the mount point == 0 for V4, the mount
+ * path needs to be looked up.
+ */
+ trycnt = 3;
+ do {
+ error = nfsrpc_getdirpath(nmp, NFSMNT_DIRPATH(nmp),
+ cred, td);
+ NFSCL_DEBUG(3, "aft dirp=%d\n", error);
+ if (error)
+ (void) nfs_catnap(PZERO, error, "nfsgetdirp");
+ } while (error && --trycnt > 0);
+ if (error)
+ goto bad;
+ }
+
+ /*
+ * A reference count is needed on the nfsnode representing the
+ * remote root. If this object is not persistent, then backward
+ * traversals of the mount point (i.e. "..") will not work if
+ * the nfsnode gets flushed out of the cache. Ufs does not have
+ * this problem, because one can identify root inodes by their
+ * number == UFS_ROOTINO (2).
+ */
+ if (nmp->nm_fhsize > 0) {
+ /*
+ * Set f_iosize to NFS_DIRBLKSIZ so that bo_bsize gets set
+ * non-zero for the root vnode. f_iosize will be set correctly
+ * by nfs_statfs() before any I/O occurs.
+ */
+ mp->mnt_stat.f_iosize = NFS_DIRBLKSIZ;
+ error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np,
+ LK_EXCLUSIVE);
+ if (error)
+ goto bad;
+ *vpp = NFSTOV(np);
+
+ /*
+ * Get file attributes and transfer parameters for the
+ * mountpoint. This has the side effect of filling in
+ * (*vpp)->v_type with the correct value.
+ */
+ ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
+ cred, td, &nfsva, NULL, &lease);
+ if (ret) {
+ /*
+ * Just set default values to get things going.
+ */
+ NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
+ nfsva.na_vattr.va_type = VDIR;
+ nfsva.na_vattr.va_mode = 0777;
+ nfsva.na_vattr.va_nlink = 100;
+ nfsva.na_vattr.va_uid = (uid_t)0;
+ nfsva.na_vattr.va_gid = (gid_t)0;
+ nfsva.na_vattr.va_fileid = 2;
+ nfsva.na_vattr.va_gen = 1;
+ nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
+ nfsva.na_vattr.va_size = 512 * 1024;
+ lease = 60;
+ }
+ (void) nfscl_loadattrcache(vpp, &nfsva, NULL, NULL, 0, 1);
+ if (nmp->nm_minorvers > 0) {
+ NFSCL_DEBUG(3, "lease=%d\n", (int)lease);
+ NFSLOCKCLSTATE();
+ clp->nfsc_renew = NFSCL_RENEW(lease);
+ clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew;
+ clp->nfsc_clientidrev++;
+ if (clp->nfsc_clientidrev == 0)
+ clp->nfsc_clientidrev++;
+ NFSUNLOCKCLSTATE();
+ /*
+ * Mount will succeed, so the renew thread can be
+ * started now.
+ */
+ nfscl_start_renewthread(clp);
+ nfscl_clientrelease(clp);
+ }
+ if (argp->flags & NFSMNT_NFSV3)
+ ncl_fsinfo(nmp, *vpp, cred, td);
+
+ /* Mark if the mount point supports NFSv4 ACLs. */
+ if ((argp->flags & NFSMNT_NFSV4) != 0 && nfsrv_useacl != 0 &&
+ ret == 0 &&
+ NFSISSET_ATTRBIT(&nfsva.na_suppattr, NFSATTRBIT_ACL)) {
+ MNT_ILOCK(mp);
+ mp->mnt_flag |= MNT_NFS4ACLS;
+ MNT_IUNLOCK(mp);
+ }
+
+ /*
+ * Lose the lock but keep the ref.
+ */
+ NFSVOPUNLOCK(*vpp, 0);
+ return (0);
+ }
+ error = EIO;
+
+bad:
+ if (clp != NULL)
+ nfscl_clientrelease(clp);
+ newnfs_disconnect(&nmp->nm_sockreq);
+ crfree(nmp->nm_sockreq.nr_cred);
+ if (nmp->nm_sockreq.nr_auth != NULL)
+ AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
+ mtx_destroy(&nmp->nm_sockreq.nr_mtx);
+ mtx_destroy(&nmp->nm_mtx);
+ if (nmp->nm_clp != NULL) {
+ NFSLOCKCLSTATE();
+ LIST_REMOVE(nmp->nm_clp, nfsc_list);
+ NFSUNLOCKCLSTATE();
+ free(nmp->nm_clp, M_NFSCLCLIENT);
+ }
+ TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp) {
+ if (dsp != TAILQ_FIRST(&nmp->nm_sess) &&
+ dsp->nfsclds_sockp != NULL)
+ newnfs_disconnect(dsp->nfsclds_sockp);
+ nfscl_freenfsclds(dsp);
+ }
+ free(nmp, M_NEWNFSMNT);
+ free(nam, M_SONAME);
+ return (error);
+}
+
+/*
+ * unmount system call
+ */
+static int
+nfs_unmount(struct mount *mp, int mntflags)
+{
+ struct thread *td;
+ struct nfsmount *nmp;
+ int error, flags = 0, i, trycnt = 0;
+ struct nfsclds *dsp, *tdsp;
+
+ td = curthread;
+
+ if (mntflags & MNT_FORCE)
+ flags |= FORCECLOSE;
+ nmp = VFSTONFS(mp);
+ error = 0;
+ /*
+ * Goes something like this..
+ * - Call vflush() to clear out vnodes for this filesystem
+ * - Close the socket
+ * - Free up the data structures
+ */
+ /* In the forced case, cancel any outstanding requests. */
+ if (mntflags & MNT_FORCE) {
+ NFSDDSLOCK();
+ if (nfsv4_findmirror(nmp) != NULL)
+ error = ENXIO;
+ NFSDDSUNLOCK();
+ if (error)
+ goto out;
+ error = newnfs_nmcancelreqs(nmp);
+ if (error)
+ goto out;
+ /* For a forced close, get rid of the renew thread now */
+ nfscl_umount(nmp, td);
+ }
+ /* We hold 1 extra ref on the root vnode; see comment in mountnfs(). */
+ do {
+ error = vflush(mp, 1, flags, td);
+ if ((mntflags & MNT_FORCE) && error != 0 && ++trycnt < 30)
+ (void) nfs_catnap(PSOCK, error, "newndm");
+ } while ((mntflags & MNT_FORCE) && error != 0 && trycnt < 30);
+ if (error)
+ goto out;
+
+ /*
+ * We are now committed to the unmount.
+ */
+ if ((mntflags & MNT_FORCE) == 0)
+ nfscl_umount(nmp, td);
+ else {
+ mtx_lock(&nmp->nm_mtx);
+ nmp->nm_privflag |= NFSMNTP_FORCEDISM;
+ mtx_unlock(&nmp->nm_mtx);
+ }
+ /* Make sure no nfsiods are assigned to this mount. */
+ NFSLOCKIOD();
+ for (i = 0; i < NFS_MAXASYNCDAEMON; i++)
+ if (ncl_iodmount[i] == nmp) {
+ ncl_iodwant[i] = NFSIOD_AVAILABLE;
+ ncl_iodmount[i] = NULL;
+ }
+ NFSUNLOCKIOD();
+
+ /*
+ * We can now set mnt_data to NULL and wait for
+ * nfssvc(NFSSVC_FORCEDISM) to complete.
+ */
+ mtx_lock(&mountlist_mtx);
+ mtx_lock(&nmp->nm_mtx);
+ mp->mnt_data = NULL;
+ mtx_unlock(&mountlist_mtx);
+ while ((nmp->nm_privflag & NFSMNTP_CANCELRPCS) != 0)
+ msleep(nmp, &nmp->nm_mtx, PVFS, "nfsfdism", 0);
+ mtx_unlock(&nmp->nm_mtx);
+
+ newnfs_disconnect(&nmp->nm_sockreq);
+ crfree(nmp->nm_sockreq.nr_cred);
+ free(nmp->nm_nam, M_SONAME);
+ if (nmp->nm_sockreq.nr_auth != NULL)
+ AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
+ mtx_destroy(&nmp->nm_sockreq.nr_mtx);
+ mtx_destroy(&nmp->nm_mtx);
+ TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp) {
+ if (dsp != TAILQ_FIRST(&nmp->nm_sess) &&
+ dsp->nfsclds_sockp != NULL)
+ newnfs_disconnect(dsp->nfsclds_sockp);
+ nfscl_freenfsclds(dsp);
+ }
+ free(nmp, M_NEWNFSMNT);
+out:
+ return (error);
+}
+
+/*
+ * Return root of a filesystem
+ */
+static int
+nfs_root(struct mount *mp, int flags, struct vnode **vpp)
+{
+ struct vnode *vp;
+ struct nfsmount *nmp;
+ struct nfsnode *np;
+ int error;
+
+ nmp = VFSTONFS(mp);
+ error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, flags);
+ if (error)
+ return error;
+ vp = NFSTOV(np);
+ /*
+ * Get transfer parameters and attributes for root vnode once.
+ */
+ mtx_lock(&nmp->nm_mtx);
+ if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
+ mtx_unlock(&nmp->nm_mtx);
+ ncl_fsinfo(nmp, vp, curthread->td_ucred, curthread);
+ } else
+ mtx_unlock(&nmp->nm_mtx);
+ if (vp->v_type == VNON)
+ vp->v_type = VDIR;
+ vp->v_vflag |= VV_ROOT;
+ *vpp = vp;
+ return (0);
+}
+
+/*
+ * Flush out the buffer cache
+ */
+/* ARGSUSED */
+static int
+nfs_sync(struct mount *mp, int waitfor)
+{
+ struct vnode *vp, *mvp;
+ struct thread *td;
+ int error, allerror = 0;
+
+ td = curthread;
+
+ MNT_ILOCK(mp);
+ /*
+ * If a forced dismount is in progress, return from here so that
+ * the umount(2) syscall doesn't get stuck in VFS_SYNC() before
+ * calling VFS_UNMOUNT().
+ */
+ if (NFSCL_FORCEDISM(mp)) {
+ MNT_IUNLOCK(mp);
+ return (EBADF);
+ }
+ MNT_IUNLOCK(mp);
+
+ /*
+ * Force stale buffer cache information to be flushed.
+ */
+loop:
+ MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
+ /* XXX Racy bv_cnt check. */
+ if (NFSVOPISLOCKED(vp) || vp->v_bufobj.bo_dirty.bv_cnt == 0 ||
+ waitfor == MNT_LAZY) {
+ VI_UNLOCK(vp);
+ continue;
+ }
+ if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK, td)) {
+ MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
+ goto loop;
+ }
+ error = VOP_FSYNC(vp, waitfor, td);
+ if (error)
+ allerror = error;
+ NFSVOPUNLOCK(vp, 0);
+ vrele(vp);
+ }
+ return (allerror);
+}
+
+static int
+nfs_sysctl(struct mount *mp, fsctlop_t op, struct sysctl_req *req)
+{
+ struct nfsmount *nmp = VFSTONFS(mp);
+ struct vfsquery vq;
+ int error;
+
+ bzero(&vq, sizeof(vq));
+ switch (op) {
+#if 0
+ case VFS_CTL_NOLOCKS:
+ val = (nmp->nm_flag & NFSMNT_NOLOCKS) ? 1 : 0;
+ if (req->oldptr != NULL) {
+ error = SYSCTL_OUT(req, &val, sizeof(val));
+ if (error)
+ return (error);
+ }
+ if (req->newptr != NULL) {
+ error = SYSCTL_IN(req, &val, sizeof(val));
+ if (error)
+ return (error);
+ if (val)
+ nmp->nm_flag |= NFSMNT_NOLOCKS;
+ else
+ nmp->nm_flag &= ~NFSMNT_NOLOCKS;
+ }
+ break;
+#endif
+ case VFS_CTL_QUERY:
+ mtx_lock(&nmp->nm_mtx);
+ if (nmp->nm_state & NFSSTA_TIMEO)
+ vq.vq_flags |= VQ_NOTRESP;
+ mtx_unlock(&nmp->nm_mtx);
+#if 0
+ if (!(nmp->nm_flag & NFSMNT_NOLOCKS) &&
+ (nmp->nm_state & NFSSTA_LOCKTIMEO))
+ vq.vq_flags |= VQ_NOTRESPLOCK;
+#endif
+ error = SYSCTL_OUT(req, &vq, sizeof(vq));
+ break;
+ case VFS_CTL_TIMEO:
+ if (req->oldptr != NULL) {
+ error = SYSCTL_OUT(req, &nmp->nm_tprintf_initial_delay,
+ sizeof(nmp->nm_tprintf_initial_delay));
+ if (error)
+ return (error);
+ }
+ if (req->newptr != NULL) {
+ error = vfs_suser(mp, req->td);
+ if (error)
+ return (error);
+ error = SYSCTL_IN(req, &nmp->nm_tprintf_initial_delay,
+ sizeof(nmp->nm_tprintf_initial_delay));
+ if (error)
+ return (error);
+ if (nmp->nm_tprintf_initial_delay < 0)
+ nmp->nm_tprintf_initial_delay = 0;
+ }
+ break;
+ default:
+ return (ENOTSUP);
+ }
+ return (0);
+}
+
+/*
+ * Purge any RPCs in progress, so that they will all return errors.
+ * This allows dounmount() to continue as far as VFS_UNMOUNT() for a
+ * forced dismount.
+ */
+static void
+nfs_purge(struct mount *mp)
+{
+ struct nfsmount *nmp = VFSTONFS(mp);
+
+ newnfs_nmcancelreqs(nmp);
+}
+
+/*
+ * Extract the information needed by the nlm from the nfs vnode.
+ */
+static void
+nfs_getnlminfo(struct vnode *vp, uint8_t *fhp, size_t *fhlenp,
+ struct sockaddr_storage *sp, int *is_v3p, off_t *sizep,
+ struct timeval *timeop)
+{
+ struct nfsmount *nmp;
+ struct nfsnode *np = VTONFS(vp);
+
+ nmp = VFSTONFS(vp->v_mount);
+ if (fhlenp != NULL)
+ *fhlenp = (size_t)np->n_fhp->nfh_len;
+ if (fhp != NULL)
+ bcopy(np->n_fhp->nfh_fh, fhp, np->n_fhp->nfh_len);
+ if (sp != NULL)
+ bcopy(nmp->nm_nam, sp, min(nmp->nm_nam->sa_len, sizeof(*sp)));
+ if (is_v3p != NULL)
+ *is_v3p = NFS_ISV3(vp);
+ if (sizep != NULL)
+ *sizep = np->n_size;
+ if (timeop != NULL) {
+ timeop->tv_sec = nmp->nm_timeo / NFS_HZ;
+ timeop->tv_usec = (nmp->nm_timeo % NFS_HZ) * (1000000 / NFS_HZ);
+ }
+}
+
+/*
+ * This function prints out an option name, based on the conditional
+ * argument.
+ */
+static __inline void nfscl_printopt(struct nfsmount *nmp, int testval,
+ char *opt, char **buf, size_t *blen)
+{
+ int len;
+
+ if (testval != 0 && *blen > strlen(opt)) {
+ len = snprintf(*buf, *blen, "%s", opt);
+ if (len != strlen(opt))
+ printf("EEK!!\n");
+ *buf += len;
+ *blen -= len;
+ }
+}
+
+/*
+ * This function printf out an options integer value.
+ */
+static __inline void nfscl_printoptval(struct nfsmount *nmp, int optval,
+ char *opt, char **buf, size_t *blen)
+{
+ int len;
+
+ if (*blen > strlen(opt) + 1) {
+ /* Could result in truncated output string. */
+ len = snprintf(*buf, *blen, "%s=%d", opt, optval);
+ if (len < *blen) {
+ *buf += len;
+ *blen -= len;
+ }
+ }
+}
+
+/*
+ * Load the option flags and values into the buffer.
+ */
+void nfscl_retopts(struct nfsmount *nmp, char *buffer, size_t buflen)
+{
+ char *buf;
+ size_t blen;
+
+ buf = buffer;
+ blen = buflen;
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV4) != 0, "nfsv4", &buf,
+ &blen);
+ if ((nmp->nm_flag & NFSMNT_NFSV4) != 0) {
+ nfscl_printoptval(nmp, nmp->nm_minorvers, ",minorversion", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_PNFS) != 0, ",pnfs",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_ONEOPENOWN) != 0 &&
+ nmp->nm_minorvers > 0, ",oneopenown", &buf, &blen);
+ }
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV3) != 0, "nfsv3", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0,
+ "nfsv2", &buf, &blen);
+ nfscl_printopt(nmp, nmp->nm_sotype == SOCK_STREAM, ",tcp", &buf, &blen);
+ nfscl_printopt(nmp, nmp->nm_sotype != SOCK_STREAM, ",udp", &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RESVPORT) != 0, ",resvport",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCONN) != 0, ",noconn",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) == 0, ",hard", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) != 0, ",soft", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_INT) != 0, ",intr", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) == 0, ",cto", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) != 0, ",nocto", &buf,
+ &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NONCONTIGWR) != 0,
+ ",noncontigwr", &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
+ 0, ",lockd", &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
+ NFSMNT_NOLOCKD, ",nolockd", &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RDIRPLUS) != 0, ",rdirplus",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_KERB) == 0, ",sec=sys",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
+ NFSMNT_PRIVACY)) == NFSMNT_KERB, ",sec=krb5", &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
+ NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_INTEGRITY), ",sec=krb5i",
+ &buf, &blen);
+ nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
+ NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_PRIVACY), ",sec=krb5p",
+ &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_acdirmin, ",acdirmin", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_acdirmax, ",acdirmax", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_acregmin, ",acregmin", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_acregmax, ",acregmax", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_nametimeo, ",nametimeo", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_negnametimeo, ",negnametimeo", &buf,
+ &blen);
+ nfscl_printoptval(nmp, nmp->nm_rsize, ",rsize", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_wsize, ",wsize", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_readdirsize, ",readdirsize", &buf,
+ &blen);
+ nfscl_printoptval(nmp, nmp->nm_readahead, ",readahead", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_wcommitsize, ",wcommitsize", &buf,
+ &blen);
+ nfscl_printoptval(nmp, nmp->nm_timeo, ",timeout", &buf, &blen);
+ nfscl_printoptval(nmp, nmp->nm_retry, ",retrans", &buf, &blen);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_clvnops.c b/freebsd/sys/fs/nfsclient/nfs_clvnops.c
new file mode 100644
index 0000000..478ee05
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_clvnops.c
@@ -0,0 +1,3604 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_vnops.c 8.16 (Berkeley) 5/27/95
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * vnode op calls for Sun NFS version 2, 3 and 4
+ */
+
+#include "opt_inet.h"
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/resourcevar.h>
+#include <sys/proc.h>
+#include <sys/mount.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/jail.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/namei.h>
+#include <sys/socket.h>
+#include <sys/vnode.h>
+#include <sys/dirent.h>
+#include <sys/fcntl.h>
+#include <sys/lockf.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/signalvar.h>
+
+#include <vm/vm.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_object.h>
+
+#include <fs/nfs/nfsport.h>
+#include <fs/nfsclient/nfsnode.h>
+#include <fs/nfsclient/nfsmount.h>
+#include <fs/nfsclient/nfs.h>
+#include <fs/nfsclient/nfs_kdtrace.h>
+
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+
+#include <nfs/nfs_lock.h>
+
+#ifdef KDTRACE_HOOKS
+#include <sys/dtrace_bsd.h>
+
+dtrace_nfsclient_accesscache_flush_probe_func_t
+ dtrace_nfscl_accesscache_flush_done_probe;
+uint32_t nfscl_accesscache_flush_done_id;
+
+dtrace_nfsclient_accesscache_get_probe_func_t
+ dtrace_nfscl_accesscache_get_hit_probe,
+ dtrace_nfscl_accesscache_get_miss_probe;
+uint32_t nfscl_accesscache_get_hit_id;
+uint32_t nfscl_accesscache_get_miss_id;
+
+dtrace_nfsclient_accesscache_load_probe_func_t
+ dtrace_nfscl_accesscache_load_done_probe;
+uint32_t nfscl_accesscache_load_done_id;
+#endif /* !KDTRACE_HOOKS */
+
+/* Defs */
+#define TRUE 1
+#define FALSE 0
+
+extern struct nfsstatsv1 nfsstatsv1;
+extern int nfsrv_useacl;
+extern int nfscl_debuglevel;
+MALLOC_DECLARE(M_NEWNFSREQ);
+
+static vop_read_t nfsfifo_read;
+static vop_write_t nfsfifo_write;
+static vop_close_t nfsfifo_close;
+static int nfs_setattrrpc(struct vnode *, struct vattr *, struct ucred *,
+ struct thread *);
+static vop_lookup_t nfs_lookup;
+static vop_create_t nfs_create;
+static vop_mknod_t nfs_mknod;
+static vop_open_t nfs_open;
+static vop_pathconf_t nfs_pathconf;
+static vop_close_t nfs_close;
+static vop_access_t nfs_access;
+static vop_getattr_t nfs_getattr;
+static vop_setattr_t nfs_setattr;
+static vop_read_t nfs_read;
+static vop_fsync_t nfs_fsync;
+static vop_remove_t nfs_remove;
+static vop_link_t nfs_link;
+static vop_rename_t nfs_rename;
+static vop_mkdir_t nfs_mkdir;
+static vop_rmdir_t nfs_rmdir;
+static vop_symlink_t nfs_symlink;
+static vop_readdir_t nfs_readdir;
+static vop_strategy_t nfs_strategy;
+static int nfs_lookitup(struct vnode *, char *, int,
+ struct ucred *, struct thread *, struct nfsnode **);
+static int nfs_sillyrename(struct vnode *, struct vnode *,
+ struct componentname *);
+static vop_access_t nfsspec_access;
+static vop_readlink_t nfs_readlink;
+static vop_print_t nfs_print;
+static vop_advlock_t nfs_advlock;
+static vop_advlockasync_t nfs_advlockasync;
+static vop_getacl_t nfs_getacl;
+static vop_setacl_t nfs_setacl;
+static vop_lock1_t nfs_lock;
+
+/*
+ * Global vfs data structures for nfs
+ */
+struct vop_vector newnfs_vnodeops = {
+ .vop_default = &default_vnodeops,
+ .vop_access = nfs_access,
+ .vop_advlock = nfs_advlock,
+ .vop_advlockasync = nfs_advlockasync,
+ .vop_close = nfs_close,
+ .vop_create = nfs_create,
+ .vop_fsync = nfs_fsync,
+ .vop_getattr = nfs_getattr,
+ .vop_getpages = ncl_getpages,
+ .vop_putpages = ncl_putpages,
+ .vop_inactive = ncl_inactive,
+ .vop_link = nfs_link,
+ .vop_lock1 = nfs_lock,
+ .vop_lookup = nfs_lookup,
+ .vop_mkdir = nfs_mkdir,
+ .vop_mknod = nfs_mknod,
+ .vop_open = nfs_open,
+ .vop_pathconf = nfs_pathconf,
+ .vop_print = nfs_print,
+ .vop_read = nfs_read,
+ .vop_readdir = nfs_readdir,
+ .vop_readlink = nfs_readlink,
+ .vop_reclaim = ncl_reclaim,
+ .vop_remove = nfs_remove,
+ .vop_rename = nfs_rename,
+ .vop_rmdir = nfs_rmdir,
+ .vop_setattr = nfs_setattr,
+ .vop_strategy = nfs_strategy,
+ .vop_symlink = nfs_symlink,
+ .vop_write = ncl_write,
+ .vop_getacl = nfs_getacl,
+ .vop_setacl = nfs_setacl,
+};
+
+struct vop_vector newnfs_fifoops = {
+ .vop_default = &fifo_specops,
+ .vop_access = nfsspec_access,
+ .vop_close = nfsfifo_close,
+ .vop_fsync = nfs_fsync,
+ .vop_getattr = nfs_getattr,
+ .vop_inactive = ncl_inactive,
+ .vop_pathconf = nfs_pathconf,
+ .vop_print = nfs_print,
+ .vop_read = nfsfifo_read,
+ .vop_reclaim = ncl_reclaim,
+ .vop_setattr = nfs_setattr,
+ .vop_write = nfsfifo_write,
+};
+
+static int nfs_mknodrpc(struct vnode *dvp, struct vnode **vpp,
+ struct componentname *cnp, struct vattr *vap);
+static int nfs_removerpc(struct vnode *dvp, struct vnode *vp, char *name,
+ int namelen, struct ucred *cred, struct thread *td);
+static int nfs_renamerpc(struct vnode *fdvp, struct vnode *fvp,
+ char *fnameptr, int fnamelen, struct vnode *tdvp, struct vnode *tvp,
+ char *tnameptr, int tnamelen, struct ucred *cred, struct thread *td);
+static int nfs_renameit(struct vnode *sdvp, struct vnode *svp,
+ struct componentname *scnp, struct sillyrename *sp);
+
+/*
+ * Global variables
+ */
+SYSCTL_DECL(_vfs_nfs);
+
+static int nfsaccess_cache_timeout = NFS_MAXATTRTIMO;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, access_cache_timeout, CTLFLAG_RW,
+ &nfsaccess_cache_timeout, 0, "NFS ACCESS cache timeout");
+
+static int nfs_prime_access_cache = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, prime_access_cache, CTLFLAG_RW,
+ &nfs_prime_access_cache, 0,
+ "Prime NFS ACCESS cache when fetching attributes");
+
+static int newnfs_commit_on_close = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, commit_on_close, CTLFLAG_RW,
+ &newnfs_commit_on_close, 0, "write+commit on close, else only write");
+
+static int nfs_clean_pages_on_close = 1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, clean_pages_on_close, CTLFLAG_RW,
+ &nfs_clean_pages_on_close, 0, "NFS clean dirty pages on close");
+
+int newnfs_directio_enable = 0;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_directio_enable, CTLFLAG_RW,
+ &newnfs_directio_enable, 0, "Enable NFS directio");
+
+int nfs_keep_dirty_on_error;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_keep_dirty_on_error, CTLFLAG_RW,
+ &nfs_keep_dirty_on_error, 0, "Retry pageout if error returned");
+
+/*
+ * This sysctl allows other processes to mmap a file that has been opened
+ * O_DIRECT by a process. In general, having processes mmap the file while
+ * Direct IO is in progress can lead to Data Inconsistencies. But, we allow
+ * this by default to prevent DoS attacks - to prevent a malicious user from
+ * opening up files O_DIRECT preventing other users from mmap'ing these
+ * files. "Protected" environments where stricter consistency guarantees are
+ * required can disable this knob. The process that opened the file O_DIRECT
+ * cannot mmap() the file, because mmap'ed IO on an O_DIRECT open() is not
+ * meaningful.
+ */
+int newnfs_directio_allow_mmap = 1;
+SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_directio_allow_mmap, CTLFLAG_RW,
+ &newnfs_directio_allow_mmap, 0, "Enable mmaped IO on file with O_DIRECT opens");
+
+#define NFSACCESS_ALL (NFSACCESS_READ | NFSACCESS_MODIFY \
+ | NFSACCESS_EXTEND | NFSACCESS_EXECUTE \
+ | NFSACCESS_DELETE | NFSACCESS_LOOKUP)
+
+/*
+ * SMP Locking Note :
+ * The list of locks after the description of the lock is the ordering
+ * of other locks acquired with the lock held.
+ * np->n_mtx : Protects the fields in the nfsnode.
+ VM Object Lock
+ VI_MTX (acquired indirectly)
+ * nmp->nm_mtx : Protects the fields in the nfsmount.
+ rep->r_mtx
+ * ncl_iod_mutex : Global lock, protects shared nfsiod state.
+ * nfs_reqq_mtx : Global lock, protects the nfs_reqq list.
+ nmp->nm_mtx
+ rep->r_mtx
+ * rep->r_mtx : Protects the fields in an nfsreq.
+ */
+
+static int
+nfs_lock(struct vop_lock1_args *ap)
+{
+ struct vnode *vp;
+ struct nfsnode *np;
+ u_quad_t nsize;
+ int error, lktype;
+ bool onfault;
+
+ vp = ap->a_vp;
+ lktype = ap->a_flags & LK_TYPE_MASK;
+ error = VOP_LOCK1_APV(&default_vnodeops, ap);
+ if (error != 0 || vp->v_op != &newnfs_vnodeops)
+ return (error);
+ np = VTONFS(vp);
+ if (np == NULL)
+ return (0);
+ NFSLOCKNODE(np);
+ if ((np->n_flag & NVNSETSZSKIP) == 0 || (lktype != LK_SHARED &&
+ lktype != LK_EXCLUSIVE && lktype != LK_UPGRADE &&
+ lktype != LK_TRYUPGRADE)) {
+ NFSUNLOCKNODE(np);
+ return (0);
+ }
+ onfault = (ap->a_flags & LK_EATTR_MASK) == LK_NOWAIT &&
+ (ap->a_flags & LK_INIT_MASK) == LK_CANRECURSE &&
+ (lktype == LK_SHARED || lktype == LK_EXCLUSIVE);
+ if (onfault && vp->v_vnlock->lk_recurse == 0) {
+ /*
+ * Force retry in vm_fault(), to make the lock request
+ * sleepable, which allows us to piggy-back the
+ * sleepable call to vnode_pager_setsize().
+ */
+ NFSUNLOCKNODE(np);
+ VOP_UNLOCK(vp, 0);
+ return (EBUSY);
+ }
+ if ((ap->a_flags & LK_NOWAIT) != 0 ||
+ (lktype == LK_SHARED && vp->v_vnlock->lk_recurse > 0)) {
+ NFSUNLOCKNODE(np);
+ return (0);
+ }
+ if (lktype == LK_SHARED) {
+ NFSUNLOCKNODE(np);
+ VOP_UNLOCK(vp, 0);
+ ap->a_flags &= ~(LK_TYPE_MASK | LK_INTERLOCK);
+ ap->a_flags |= LK_EXCLUSIVE;
+ error = VOP_LOCK1_APV(&default_vnodeops, ap);
+ if (error != 0 || vp->v_op != &newnfs_vnodeops)
+ return (error);
+ if (vp->v_data == NULL)
+ goto downgrade;
+ MPASS(vp->v_data == np);
+ NFSLOCKNODE(np);
+ if ((np->n_flag & NVNSETSZSKIP) == 0) {
+ NFSUNLOCKNODE(np);
+ goto downgrade;
+ }
+ }
+ np->n_flag &= ~NVNSETSZSKIP;
+ nsize = np->n_size;
+ NFSUNLOCKNODE(np);
+ vnode_pager_setsize(vp, nsize);
+downgrade:
+ if (lktype == LK_SHARED) {
+ ap->a_flags &= ~(LK_TYPE_MASK | LK_INTERLOCK);
+ ap->a_flags |= LK_DOWNGRADE;
+ (void)VOP_LOCK1_APV(&default_vnodeops, ap);
+ }
+ return (0);
+}
+
+static int
+nfs34_access_otw(struct vnode *vp, int wmode, struct thread *td,
+ struct ucred *cred, u_int32_t *retmode)
+{
+ int error = 0, attrflag, i, lrupos;
+ u_int32_t rmode;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsvattr nfsva;
+
+ error = nfsrpc_accessrpc(vp, wmode, cred, td, &nfsva, &attrflag,
+ &rmode, NULL);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ if (!error) {
+ lrupos = 0;
+ NFSLOCKNODE(np);
+ for (i = 0; i < NFS_ACCESSCACHESIZE; i++) {
+ if (np->n_accesscache[i].uid == cred->cr_uid) {
+ np->n_accesscache[i].mode = rmode;
+ np->n_accesscache[i].stamp = time_second;
+ break;
+ }
+ if (i > 0 && np->n_accesscache[i].stamp <
+ np->n_accesscache[lrupos].stamp)
+ lrupos = i;
+ }
+ if (i == NFS_ACCESSCACHESIZE) {
+ np->n_accesscache[lrupos].uid = cred->cr_uid;
+ np->n_accesscache[lrupos].mode = rmode;
+ np->n_accesscache[lrupos].stamp = time_second;
+ }
+ NFSUNLOCKNODE(np);
+ if (retmode != NULL)
+ *retmode = rmode;
+ KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, cred->cr_uid, rmode, 0);
+ } else if (NFS_ISV4(vp)) {
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ }
+#ifdef KDTRACE_HOOKS
+ if (error != 0)
+ KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, cred->cr_uid, 0,
+ error);
+#endif
+ return (error);
+}
+
+/*
+ * nfs access vnode op.
+ * For nfs version 2, just return ok. File accesses may fail later.
+ * For nfs version 3, use the access rpc to check accessibility. If file modes
+ * are changed on the server, accesses might still fail later.
+ */
+static int
+nfs_access(struct vop_access_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ int error = 0, i, gotahit;
+ u_int32_t mode, wmode, rmode;
+ int v34 = NFS_ISV34(vp);
+ struct nfsnode *np = VTONFS(vp);
+
+ /*
+ * Disallow write attempts on filesystems mounted read-only;
+ * unless the file is a socket, fifo, or a block or character
+ * device resident on the filesystem.
+ */
+ if ((ap->a_accmode & (VWRITE | VAPPEND | VWRITE_NAMED_ATTRS |
+ VDELETE_CHILD | VWRITE_ATTRIBUTES | VDELETE | VWRITE_ACL |
+ VWRITE_OWNER)) != 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) != 0) {
+ switch (vp->v_type) {
+ case VREG:
+ case VDIR:
+ case VLNK:
+ return (EROFS);
+ default:
+ break;
+ }
+ }
+ /*
+ * For nfs v3 or v4, check to see if we have done this recently, and if
+ * so return our cached result instead of making an ACCESS call.
+ * If not, do an access rpc, otherwise you are stuck emulating
+ * ufs_access() locally using the vattr. This may not be correct,
+ * since the server may apply other access criteria such as
+ * client uid-->server uid mapping that we do not know about.
+ */
+ if (v34) {
+ if (ap->a_accmode & VREAD)
+ mode = NFSACCESS_READ;
+ else
+ mode = 0;
+ if (vp->v_type != VDIR) {
+ if (ap->a_accmode & VWRITE)
+ mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND);
+ if (ap->a_accmode & VAPPEND)
+ mode |= NFSACCESS_EXTEND;
+ if (ap->a_accmode & VEXEC)
+ mode |= NFSACCESS_EXECUTE;
+ if (ap->a_accmode & VDELETE)
+ mode |= NFSACCESS_DELETE;
+ } else {
+ if (ap->a_accmode & VWRITE)
+ mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND);
+ if (ap->a_accmode & VAPPEND)
+ mode |= NFSACCESS_EXTEND;
+ if (ap->a_accmode & VEXEC)
+ mode |= NFSACCESS_LOOKUP;
+ if (ap->a_accmode & VDELETE)
+ mode |= NFSACCESS_DELETE;
+ if (ap->a_accmode & VDELETE_CHILD)
+ mode |= NFSACCESS_MODIFY;
+ }
+ /* XXX safety belt, only make blanket request if caching */
+ if (nfsaccess_cache_timeout > 0) {
+ wmode = NFSACCESS_READ | NFSACCESS_MODIFY |
+ NFSACCESS_EXTEND | NFSACCESS_EXECUTE |
+ NFSACCESS_DELETE | NFSACCESS_LOOKUP;
+ } else {
+ wmode = mode;
+ }
+
+ /*
+ * Does our cached result allow us to give a definite yes to
+ * this request?
+ */
+ gotahit = 0;
+ NFSLOCKNODE(np);
+ for (i = 0; i < NFS_ACCESSCACHESIZE; i++) {
+ if (ap->a_cred->cr_uid == np->n_accesscache[i].uid) {
+ if (time_second < (np->n_accesscache[i].stamp
+ + nfsaccess_cache_timeout) &&
+ (np->n_accesscache[i].mode & mode) == mode) {
+ NFSINCRGLOBAL(nfsstatsv1.accesscache_hits);
+ gotahit = 1;
+ }
+ break;
+ }
+ }
+ NFSUNLOCKNODE(np);
+#ifdef KDTRACE_HOOKS
+ if (gotahit != 0)
+ KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp,
+ ap->a_cred->cr_uid, mode);
+ else
+ KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp,
+ ap->a_cred->cr_uid, mode);
+#endif
+ if (gotahit == 0) {
+ /*
+ * Either a no, or a don't know. Go to the wire.
+ */
+ NFSINCRGLOBAL(nfsstatsv1.accesscache_misses);
+ error = nfs34_access_otw(vp, wmode, ap->a_td,
+ ap->a_cred, &rmode);
+ if (!error &&
+ (rmode & mode) != mode)
+ error = EACCES;
+ }
+ return (error);
+ } else {
+ if ((error = nfsspec_access(ap)) != 0) {
+ return (error);
+ }
+ /*
+ * Attempt to prevent a mapped root from accessing a file
+ * which it shouldn't. We try to read a byte from the file
+ * if the user is root and the file is not zero length.
+ * After calling nfsspec_access, we should have the correct
+ * file size cached.
+ */
+ NFSLOCKNODE(np);
+ if (ap->a_cred->cr_uid == 0 && (ap->a_accmode & VREAD)
+ && VTONFS(vp)->n_size > 0) {
+ struct iovec aiov;
+ struct uio auio;
+ char buf[1];
+
+ NFSUNLOCKNODE(np);
+ aiov.iov_base = buf;
+ aiov.iov_len = 1;
+ auio.uio_iov = &aiov;
+ auio.uio_iovcnt = 1;
+ auio.uio_offset = 0;
+ auio.uio_resid = 1;
+ auio.uio_segflg = UIO_SYSSPACE;
+ auio.uio_rw = UIO_READ;
+ auio.uio_td = ap->a_td;
+
+ if (vp->v_type == VREG)
+ error = ncl_readrpc(vp, &auio, ap->a_cred);
+ else if (vp->v_type == VDIR) {
+ char* bp;
+ bp = malloc(NFS_DIRBLKSIZ, M_TEMP, M_WAITOK);
+ aiov.iov_base = bp;
+ aiov.iov_len = auio.uio_resid = NFS_DIRBLKSIZ;
+ error = ncl_readdirrpc(vp, &auio, ap->a_cred,
+ ap->a_td);
+ free(bp, M_TEMP);
+ } else if (vp->v_type == VLNK)
+ error = ncl_readlinkrpc(vp, &auio, ap->a_cred);
+ else
+ error = EACCES;
+ } else
+ NFSUNLOCKNODE(np);
+ return (error);
+ }
+}
+
+
+/*
+ * nfs open vnode op
+ * Check to see if the type is ok
+ * and that deletion is not in progress.
+ * For paged in text files, you will need to flush the page cache
+ * if consistency is lost.
+ */
+/* ARGSUSED */
+static int
+nfs_open(struct vop_open_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct vattr vattr;
+ int error;
+ int fmode = ap->a_mode;
+ struct ucred *cred;
+ vm_object_t obj;
+
+ if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK)
+ return (EOPNOTSUPP);
+
+ /*
+ * For NFSv4, we need to do the Open Op before cache validation,
+ * so that we conform to RFC3530 Sec. 9.3.1.
+ */
+ if (NFS_ISV4(vp)) {
+ error = nfsrpc_open(vp, fmode, ap->a_cred, ap->a_td);
+ if (error) {
+ error = nfscl_maperr(ap->a_td, error, (uid_t)0,
+ (gid_t)0);
+ return (error);
+ }
+ }
+
+ /*
+ * Now, if this Open will be doing reading, re-validate/flush the
+ * cache, so that Close/Open coherency is maintained.
+ */
+ NFSLOCKNODE(np);
+ if (np->n_flag & NMODIFIED) {
+ NFSUNLOCKNODE(np);
+ error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
+ if (error == EINTR || error == EIO) {
+ if (NFS_ISV4(vp))
+ (void) nfsrpc_close(vp, 0, ap->a_td);
+ return (error);
+ }
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ if (vp->v_type == VDIR)
+ np->n_direofoffset = 0;
+ NFSUNLOCKNODE(np);
+ error = VOP_GETATTR(vp, &vattr, ap->a_cred);
+ if (error) {
+ if (NFS_ISV4(vp))
+ (void) nfsrpc_close(vp, 0, ap->a_td);
+ return (error);
+ }
+ NFSLOCKNODE(np);
+ np->n_mtime = vattr.va_mtime;
+ if (NFS_ISV4(vp))
+ np->n_change = vattr.va_filerev;
+ } else {
+ NFSUNLOCKNODE(np);
+ error = VOP_GETATTR(vp, &vattr, ap->a_cred);
+ if (error) {
+ if (NFS_ISV4(vp))
+ (void) nfsrpc_close(vp, 0, ap->a_td);
+ return (error);
+ }
+ NFSLOCKNODE(np);
+ if ((NFS_ISV4(vp) && np->n_change != vattr.va_filerev) ||
+ NFS_TIMESPEC_COMPARE(&np->n_mtime, &vattr.va_mtime)) {
+ if (vp->v_type == VDIR)
+ np->n_direofoffset = 0;
+ NFSUNLOCKNODE(np);
+ error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
+ if (error == EINTR || error == EIO) {
+ if (NFS_ISV4(vp))
+ (void) nfsrpc_close(vp, 0, ap->a_td);
+ return (error);
+ }
+ NFSLOCKNODE(np);
+ np->n_mtime = vattr.va_mtime;
+ if (NFS_ISV4(vp))
+ np->n_change = vattr.va_filerev;
+ }
+ }
+
+ /*
+ * If the object has >= 1 O_DIRECT active opens, we disable caching.
+ */
+ if (newnfs_directio_enable && (fmode & O_DIRECT) &&
+ (vp->v_type == VREG)) {
+ if (np->n_directio_opens == 0) {
+ NFSUNLOCKNODE(np);
+ error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
+ if (error) {
+ if (NFS_ISV4(vp))
+ (void) nfsrpc_close(vp, 0, ap->a_td);
+ return (error);
+ }
+ NFSLOCKNODE(np);
+ np->n_flag |= NNONCACHE;
+ }
+ np->n_directio_opens++;
+ }
+
+ /* If opened for writing via NFSv4.1 or later, mark that for pNFS. */
+ if (NFSHASPNFS(VFSTONFS(vp->v_mount)) && (fmode & FWRITE) != 0)
+ np->n_flag |= NWRITEOPENED;
+
+ /*
+ * If this is an open for writing, capture a reference to the
+ * credentials, so they can be used by ncl_putpages(). Using
+ * these write credentials is preferable to the credentials of
+ * whatever thread happens to be doing the VOP_PUTPAGES() since
+ * the write RPCs are less likely to fail with EACCES.
+ */
+ if ((fmode & FWRITE) != 0) {
+ cred = np->n_writecred;
+ np->n_writecred = crhold(ap->a_cred);
+ } else
+ cred = NULL;
+ NFSUNLOCKNODE(np);
+
+ if (cred != NULL)
+ crfree(cred);
+ vnode_create_vobject(vp, vattr.va_size, ap->a_td);
+
+ /*
+ * If the text file has been mmap'd, flush any dirty pages to the
+ * buffer cache and then...
+ * Make sure all writes are pushed to the NFS server. If this is not
+ * done, the modify time of the file can change while the text
+ * file is being executed. This will cause the process that is
+ * executing the text file to be terminated.
+ */
+ if (vp->v_writecount <= -1) {
+ if ((obj = vp->v_object) != NULL &&
+ (obj->flags & OBJ_MIGHTBEDIRTY) != 0) {
+ VM_OBJECT_WLOCK(obj);
+ vm_object_page_clean(obj, 0, 0, OBJPC_SYNC);
+ VM_OBJECT_WUNLOCK(obj);
+ }
+
+ /* Now, flush the buffer cache. */
+ ncl_flush(vp, MNT_WAIT, curthread, 0, 0);
+
+ /* And, finally, make sure that n_mtime is up to date. */
+ np = VTONFS(vp);
+ NFSLOCKNODE(np);
+ np->n_mtime = np->n_vattr.na_mtime;
+ NFSUNLOCKNODE(np);
+ }
+ return (0);
+}
+
+/*
+ * nfs close vnode op
+ * What an NFS client should do upon close after writing is a debatable issue.
+ * Most NFS clients push delayed writes to the server upon close, basically for
+ * two reasons:
+ * 1 - So that any write errors may be reported back to the client process
+ * doing the close system call. By far the two most likely errors are
+ * NFSERR_NOSPC and NFSERR_DQUOT to indicate space allocation failure.
+ * 2 - To put a worst case upper bound on cache inconsistency between
+ * multiple clients for the file.
+ * There is also a consistency problem for Version 2 of the protocol w.r.t.
+ * not being able to tell if other clients are writing a file concurrently,
+ * since there is no way of knowing if the changed modify time in the reply
+ * is only due to the write for this client.
+ * (NFS Version 3 provides weak cache consistency data in the reply that
+ * should be sufficient to detect and handle this case.)
+ *
+ * The current code does the following:
+ * for NFS Version 2 - play it safe and flush/invalidate all dirty buffers
+ * for NFS Version 3 - flush dirty buffers to the server but don't invalidate
+ * or commit them (this satisfies 1 and 2 except for the
+ * case where the server crashes after this close but
+ * before the commit RPC, which is felt to be "good
+ * enough". Changing the last argument to ncl_flush() to
+ * a 1 would force a commit operation, if it is felt a
+ * commit is necessary now.
+ * for NFS Version 4 - flush the dirty buffers and commit them, if
+ * nfscl_mustflush() says this is necessary.
+ * It is necessary if there is no write delegation held,
+ * in order to satisfy open/close coherency.
+ * If the file isn't cached on local stable storage,
+ * it may be necessary in order to detect "out of space"
+ * errors from the server, if the write delegation
+ * issued by the server doesn't allow the file to grow.
+ */
+/* ARGSUSED */
+static int
+nfs_close(struct vop_close_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsvattr nfsva;
+ struct ucred *cred;
+ int error = 0, ret, localcred = 0;
+ int fmode = ap->a_fflag;
+
+ if (NFSCL_FORCEDISM(vp->v_mount))
+ return (0);
+ /*
+ * During shutdown, a_cred isn't valid, so just use root.
+ */
+ if (ap->a_cred == NOCRED) {
+ cred = newnfs_getcred();
+ localcred = 1;
+ } else {
+ cred = ap->a_cred;
+ }
+ if (vp->v_type == VREG) {
+ /*
+ * Examine and clean dirty pages, regardless of NMODIFIED.
+ * This closes a major hole in close-to-open consistency.
+ * We want to push out all dirty pages (and buffers) on
+ * close, regardless of whether they were dirtied by
+ * mmap'ed writes or via write().
+ */
+ if (nfs_clean_pages_on_close && vp->v_object) {
+ VM_OBJECT_WLOCK(vp->v_object);
+ vm_object_page_clean(vp->v_object, 0, 0, 0);
+ VM_OBJECT_WUNLOCK(vp->v_object);
+ }
+ NFSLOCKNODE(np);
+ if (np->n_flag & NMODIFIED) {
+ NFSUNLOCKNODE(np);
+ if (NFS_ISV3(vp)) {
+ /*
+ * Under NFSv3 we have dirty buffers to dispose of. We
+ * must flush them to the NFS server. We have the option
+ * of waiting all the way through the commit rpc or just
+ * waiting for the initial write. The default is to only
+ * wait through the initial write so the data is in the
+ * server's cache, which is roughly similar to the state
+ * a standard disk subsystem leaves the file in on close().
+ *
+ * We cannot clear the NMODIFIED bit in np->n_flag due to
+ * potential races with other processes, and certainly
+ * cannot clear it if we don't commit.
+ * These races occur when there is no longer the old
+ * traditional vnode locking implemented for Vnode Ops.
+ */
+ int cm = newnfs_commit_on_close ? 1 : 0;
+ error = ncl_flush(vp, MNT_WAIT, ap->a_td, cm, 0);
+ /* np->n_flag &= ~NMODIFIED; */
+ } else if (NFS_ISV4(vp)) {
+ if (nfscl_mustflush(vp) != 0) {
+ int cm = newnfs_commit_on_close ? 1 : 0;
+ error = ncl_flush(vp, MNT_WAIT, ap->a_td,
+ cm, 0);
+ /*
+ * as above w.r.t races when clearing
+ * NMODIFIED.
+ * np->n_flag &= ~NMODIFIED;
+ */
+ }
+ } else {
+ error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1);
+ }
+ NFSLOCKNODE(np);
+ }
+ /*
+ * Invalidate the attribute cache in all cases.
+ * An open is going to fetch fresh attrs any way, other procs
+ * on this node that have file open will be forced to do an
+ * otw attr fetch, but this is safe.
+ * --> A user found that their RPC count dropped by 20% when
+ * this was commented out and I can't see any requirement
+ * for it, so I've disabled it when negative lookups are
+ * enabled. (What does this have to do with negative lookup
+ * caching? Well nothing, except it was reported by the
+ * same user that needed negative lookup caching and I wanted
+ * there to be a way to disable it to see if it
+ * is the cause of some caching/coherency issue that might
+ * crop up.)
+ */
+ if (VFSTONFS(vp->v_mount)->nm_negnametimeo == 0) {
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ }
+ if (np->n_flag & NWRITEERR) {
+ np->n_flag &= ~NWRITEERR;
+ error = np->n_error;
+ }
+ NFSUNLOCKNODE(np);
+ }
+
+ if (NFS_ISV4(vp)) {
+ /*
+ * Get attributes so "change" is up to date.
+ */
+ if (error == 0 && nfscl_mustflush(vp) != 0 &&
+ vp->v_type == VREG &&
+ (VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NOCTO) == 0) {
+ ret = nfsrpc_getattr(vp, cred, ap->a_td, &nfsva,
+ NULL);
+ if (!ret) {
+ np->n_change = nfsva.na_filerev;
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL,
+ NULL, 0, 0);
+ }
+ }
+
+ /*
+ * and do the close.
+ */
+ ret = nfsrpc_close(vp, 0, ap->a_td);
+ if (!error && ret)
+ error = ret;
+ if (error)
+ error = nfscl_maperr(ap->a_td, error, (uid_t)0,
+ (gid_t)0);
+ }
+ if (newnfs_directio_enable)
+ KASSERT((np->n_directio_asyncwr == 0),
+ ("nfs_close: dirty unflushed (%d) directio buffers\n",
+ np->n_directio_asyncwr));
+ if (newnfs_directio_enable && (fmode & O_DIRECT) && (vp->v_type == VREG)) {
+ NFSLOCKNODE(np);
+ KASSERT((np->n_directio_opens > 0),
+ ("nfs_close: unexpectedly value (0) of n_directio_opens\n"));
+ np->n_directio_opens--;
+ if (np->n_directio_opens == 0)
+ np->n_flag &= ~NNONCACHE;
+ NFSUNLOCKNODE(np);
+ }
+ if (localcred)
+ NFSFREECRED(cred);
+ return (error);
+}
+
+/*
+ * nfs getattr call from vfs.
+ */
+static int
+nfs_getattr(struct vop_getattr_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct thread *td = curthread; /* XXX */
+ struct nfsnode *np = VTONFS(vp);
+ int error = 0;
+ struct nfsvattr nfsva;
+ struct vattr *vap = ap->a_vap;
+ struct vattr vattr;
+
+ /*
+ * Update local times for special files.
+ */
+ NFSLOCKNODE(np);
+ if (np->n_flag & (NACC | NUPD))
+ np->n_flag |= NCHG;
+ NFSUNLOCKNODE(np);
+ /*
+ * First look in the cache.
+ */
+ if (ncl_getattrcache(vp, &vattr) == 0) {
+ vap->va_type = vattr.va_type;
+ vap->va_mode = vattr.va_mode;
+ vap->va_nlink = vattr.va_nlink;
+ vap->va_uid = vattr.va_uid;
+ vap->va_gid = vattr.va_gid;
+ vap->va_fsid = vattr.va_fsid;
+ vap->va_fileid = vattr.va_fileid;
+ vap->va_size = vattr.va_size;
+ vap->va_blocksize = vattr.va_blocksize;
+ vap->va_atime = vattr.va_atime;
+ vap->va_mtime = vattr.va_mtime;
+ vap->va_ctime = vattr.va_ctime;
+ vap->va_gen = vattr.va_gen;
+ vap->va_flags = vattr.va_flags;
+ vap->va_rdev = vattr.va_rdev;
+ vap->va_bytes = vattr.va_bytes;
+ vap->va_filerev = vattr.va_filerev;
+ /*
+ * Get the local modify time for the case of a write
+ * delegation.
+ */
+ nfscl_deleggetmodtime(vp, &vap->va_mtime);
+ return (0);
+ }
+
+ if (NFS_ISV34(vp) && nfs_prime_access_cache &&
+ nfsaccess_cache_timeout > 0) {
+ NFSINCRGLOBAL(nfsstatsv1.accesscache_misses);
+ nfs34_access_otw(vp, NFSACCESS_ALL, td, ap->a_cred, NULL);
+ if (ncl_getattrcache(vp, ap->a_vap) == 0) {
+ nfscl_deleggetmodtime(vp, &ap->a_vap->va_mtime);
+ return (0);
+ }
+ }
+ error = nfsrpc_getattr(vp, ap->a_cred, td, &nfsva, NULL);
+ if (!error)
+ error = nfscl_loadattrcache(&vp, &nfsva, vap, NULL, 0, 0);
+ if (!error) {
+ /*
+ * Get the local modify time for the case of a write
+ * delegation.
+ */
+ nfscl_deleggetmodtime(vp, &vap->va_mtime);
+ } else if (NFS_ISV4(vp)) {
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ }
+ return (error);
+}
+
+/*
+ * nfs setattr call.
+ */
+static int
+nfs_setattr(struct vop_setattr_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct thread *td = curthread; /* XXX */
+ struct vattr *vap = ap->a_vap;
+ int error = 0;
+ u_quad_t tsize;
+
+#ifndef nolint
+ tsize = (u_quad_t)0;
+#endif
+
+ /*
+ * Setting of flags and marking of atimes are not supported.
+ */
+ if (vap->va_flags != VNOVAL)
+ return (EOPNOTSUPP);
+
+ /*
+ * Disallow write attempts if the filesystem is mounted read-only.
+ */
+ if ((vap->va_flags != VNOVAL || vap->va_uid != (uid_t)VNOVAL ||
+ vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL ||
+ vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) &&
+ (vp->v_mount->mnt_flag & MNT_RDONLY))
+ return (EROFS);
+ if (vap->va_size != VNOVAL) {
+ switch (vp->v_type) {
+ case VDIR:
+ return (EISDIR);
+ case VCHR:
+ case VBLK:
+ case VSOCK:
+ case VFIFO:
+ if (vap->va_mtime.tv_sec == VNOVAL &&
+ vap->va_atime.tv_sec == VNOVAL &&
+ vap->va_mode == (mode_t)VNOVAL &&
+ vap->va_uid == (uid_t)VNOVAL &&
+ vap->va_gid == (gid_t)VNOVAL)
+ return (0);
+ vap->va_size = VNOVAL;
+ break;
+ default:
+ /*
+ * Disallow write attempts if the filesystem is
+ * mounted read-only.
+ */
+ if (vp->v_mount->mnt_flag & MNT_RDONLY)
+ return (EROFS);
+ /*
+ * We run vnode_pager_setsize() early (why?),
+ * we must set np->n_size now to avoid vinvalbuf
+ * V_SAVE races that might setsize a lower
+ * value.
+ */
+ NFSLOCKNODE(np);
+ tsize = np->n_size;
+ NFSUNLOCKNODE(np);
+ error = ncl_meta_setsize(vp, td, vap->va_size);
+ NFSLOCKNODE(np);
+ if (np->n_flag & NMODIFIED) {
+ tsize = np->n_size;
+ NFSUNLOCKNODE(np);
+ error = ncl_vinvalbuf(vp, vap->va_size == 0 ?
+ 0 : V_SAVE, td, 1);
+ if (error != 0) {
+ vnode_pager_setsize(vp, tsize);
+ return (error);
+ }
+ /*
+ * Call nfscl_delegmodtime() to set the modify time
+ * locally, as required.
+ */
+ nfscl_delegmodtime(vp);
+ } else
+ NFSUNLOCKNODE(np);
+ /*
+ * np->n_size has already been set to vap->va_size
+ * in ncl_meta_setsize(). We must set it again since
+ * nfs_loadattrcache() could be called through
+ * ncl_meta_setsize() and could modify np->n_size.
+ */
+ NFSLOCKNODE(np);
+ np->n_vattr.na_size = np->n_size = vap->va_size;
+ NFSUNLOCKNODE(np);
+ }
+ } else {
+ NFSLOCKNODE(np);
+ if ((vap->va_mtime.tv_sec != VNOVAL || vap->va_atime.tv_sec != VNOVAL) &&
+ (np->n_flag & NMODIFIED) && vp->v_type == VREG) {
+ NFSUNLOCKNODE(np);
+ error = ncl_vinvalbuf(vp, V_SAVE, td, 1);
+ if (error == EINTR || error == EIO)
+ return (error);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+ error = nfs_setattrrpc(vp, vap, ap->a_cred, td);
+ if (error && vap->va_size != VNOVAL) {
+ NFSLOCKNODE(np);
+ np->n_size = np->n_vattr.na_size = tsize;
+ vnode_pager_setsize(vp, tsize);
+ NFSUNLOCKNODE(np);
+ }
+ return (error);
+}
+
+/*
+ * Do an nfs setattr rpc.
+ */
+static int
+nfs_setattrrpc(struct vnode *vp, struct vattr *vap, struct ucred *cred,
+ struct thread *td)
+{
+ struct nfsnode *np = VTONFS(vp);
+ int error, ret, attrflag, i;
+ struct nfsvattr nfsva;
+
+ if (NFS_ISV34(vp)) {
+ NFSLOCKNODE(np);
+ for (i = 0; i < NFS_ACCESSCACHESIZE; i++)
+ np->n_accesscache[i].stamp = 0;
+ np->n_flag |= NDELEGMOD;
+ NFSUNLOCKNODE(np);
+ KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp);
+ }
+ error = nfsrpc_setattr(vp, vap, NULL, cred, td, &nfsva, &attrflag,
+ NULL);
+ if (attrflag) {
+ ret = nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ if (ret && !error)
+ error = ret;
+ }
+ if (error && NFS_ISV4(vp))
+ error = nfscl_maperr(td, error, vap->va_uid, vap->va_gid);
+ return (error);
+}
+
+/*
+ * nfs lookup call, one step at a time...
+ * First look in cache
+ * If not found, unlock the directory nfsnode and do the rpc
+ */
+static int
+nfs_lookup(struct vop_lookup_args *ap)
+{
+ struct componentname *cnp = ap->a_cnp;
+ struct vnode *dvp = ap->a_dvp;
+ struct vnode **vpp = ap->a_vpp;
+ struct mount *mp = dvp->v_mount;
+ int flags = cnp->cn_flags;
+ struct vnode *newvp;
+ struct nfsmount *nmp;
+ struct nfsnode *np, *newnp;
+ int error = 0, attrflag, dattrflag, ltype, ncticks;
+ struct thread *td = cnp->cn_thread;
+ struct nfsfh *nfhp;
+ struct nfsvattr dnfsva, nfsva;
+ struct vattr vattr;
+ struct timespec nctime;
+
+ *vpp = NULLVP;
+ if ((flags & ISLASTCN) && (mp->mnt_flag & MNT_RDONLY) &&
+ (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
+ return (EROFS);
+ if (dvp->v_type != VDIR)
+ return (ENOTDIR);
+ nmp = VFSTONFS(mp);
+ np = VTONFS(dvp);
+
+ /* For NFSv4, wait until any remove is done. */
+ NFSLOCKNODE(np);
+ while (NFSHASNFSV4(nmp) && (np->n_flag & NREMOVEINPROG)) {
+ np->n_flag |= NREMOVEWANT;
+ (void) msleep((caddr_t)np, &np->n_mtx, PZERO, "nfslkup", 0);
+ }
+ NFSUNLOCKNODE(np);
+
+ error = vn_dir_check_exec(dvp, cnp);
+ if (error != 0)
+ return (error);
+ error = cache_lookup(dvp, vpp, cnp, &nctime, &ncticks);
+ if (error > 0 && error != ENOENT)
+ return (error);
+ if (error == -1) {
+ /*
+ * Lookups of "." are special and always return the
+ * current directory. cache_lookup() already handles
+ * associated locking bookkeeping, etc.
+ */
+ if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
+ /* XXX: Is this really correct? */
+ if (cnp->cn_nameiop != LOOKUP &&
+ (flags & ISLASTCN))
+ cnp->cn_flags |= SAVENAME;
+ return (0);
+ }
+
+ /*
+ * We only accept a positive hit in the cache if the
+ * change time of the file matches our cached copy.
+ * Otherwise, we discard the cache entry and fallback
+ * to doing a lookup RPC. We also only trust cache
+ * entries for less than nm_nametimeo seconds.
+ *
+ * To better handle stale file handles and attributes,
+ * clear the attribute cache of this node if it is a
+ * leaf component, part of an open() call, and not
+ * locally modified before fetching the attributes.
+ * This should allow stale file handles to be detected
+ * here where we can fall back to a LOOKUP RPC to
+ * recover rather than having nfs_open() detect the
+ * stale file handle and failing open(2) with ESTALE.
+ */
+ newvp = *vpp;
+ newnp = VTONFS(newvp);
+ if (!(nmp->nm_flag & NFSMNT_NOCTO) &&
+ (flags & (ISLASTCN | ISOPEN)) == (ISLASTCN | ISOPEN) &&
+ !(newnp->n_flag & NMODIFIED)) {
+ NFSLOCKNODE(newnp);
+ newnp->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(newvp);
+ NFSUNLOCKNODE(newnp);
+ }
+ if (nfscl_nodeleg(newvp, 0) == 0 ||
+ ((u_int)(ticks - ncticks) < (nmp->nm_nametimeo * hz) &&
+ VOP_GETATTR(newvp, &vattr, cnp->cn_cred) == 0 &&
+ timespeccmp(&vattr.va_ctime, &nctime, ==))) {
+ NFSINCRGLOBAL(nfsstatsv1.lookupcache_hits);
+ if (cnp->cn_nameiop != LOOKUP &&
+ (flags & ISLASTCN))
+ cnp->cn_flags |= SAVENAME;
+ return (0);
+ }
+ cache_purge(newvp);
+ if (dvp != newvp)
+ vput(newvp);
+ else
+ vrele(newvp);
+ *vpp = NULLVP;
+ } else if (error == ENOENT) {
+ if (dvp->v_iflag & VI_DOOMED)
+ return (ENOENT);
+ /*
+ * We only accept a negative hit in the cache if the
+ * modification time of the parent directory matches
+ * the cached copy in the name cache entry.
+ * Otherwise, we discard all of the negative cache
+ * entries for this directory. We also only trust
+ * negative cache entries for up to nm_negnametimeo
+ * seconds.
+ */
+ if ((u_int)(ticks - ncticks) < (nmp->nm_negnametimeo * hz) &&
+ VOP_GETATTR(dvp, &vattr, cnp->cn_cred) == 0 &&
+ timespeccmp(&vattr.va_mtime, &nctime, ==)) {
+ NFSINCRGLOBAL(nfsstatsv1.lookupcache_hits);
+ return (ENOENT);
+ }
+ cache_purge_negative(dvp);
+ }
+
+ error = 0;
+ newvp = NULLVP;
+ NFSINCRGLOBAL(nfsstatsv1.lookupcache_misses);
+ error = nfsrpc_lookup(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ cnp->cn_cred, td, &dnfsva, &nfsva, &nfhp, &attrflag, &dattrflag,
+ NULL);
+ if (dattrflag)
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ if (error) {
+ if (newvp != NULLVP) {
+ vput(newvp);
+ *vpp = NULLVP;
+ }
+
+ if (error != ENOENT) {
+ if (NFS_ISV4(dvp))
+ error = nfscl_maperr(td, error, (uid_t)0,
+ (gid_t)0);
+ return (error);
+ }
+
+ /* The requested file was not found. */
+ if ((cnp->cn_nameiop == CREATE || cnp->cn_nameiop == RENAME) &&
+ (flags & ISLASTCN)) {
+ /*
+ * XXX: UFS does a full VOP_ACCESS(dvp,
+ * VWRITE) here instead of just checking
+ * MNT_RDONLY.
+ */
+ if (mp->mnt_flag & MNT_RDONLY)
+ return (EROFS);
+ cnp->cn_flags |= SAVENAME;
+ return (EJUSTRETURN);
+ }
+
+ if ((cnp->cn_flags & MAKEENTRY) != 0 && dattrflag) {
+ /*
+ * Cache the modification time of the parent
+ * directory from the post-op attributes in
+ * the name cache entry. The negative cache
+ * entry will be ignored once the directory
+ * has changed. Don't bother adding the entry
+ * if the directory has already changed.
+ */
+ NFSLOCKNODE(np);
+ if (timespeccmp(&np->n_vattr.na_mtime,
+ &dnfsva.na_mtime, ==)) {
+ NFSUNLOCKNODE(np);
+ cache_enter_time(dvp, NULL, cnp,
+ &dnfsva.na_mtime, NULL);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+ return (ENOENT);
+ }
+
+ /*
+ * Handle RENAME case...
+ */
+ if (cnp->cn_nameiop == RENAME && (flags & ISLASTCN)) {
+ if (NFS_CMPFH(np, nfhp->nfh_fh, nfhp->nfh_len)) {
+ free(nfhp, M_NFSFH);
+ return (EISDIR);
+ }
+ error = nfscl_nget(mp, dvp, nfhp, cnp, td, &np, NULL,
+ LK_EXCLUSIVE);
+ if (error)
+ return (error);
+ newvp = NFSTOV(np);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ *vpp = newvp;
+ cnp->cn_flags |= SAVENAME;
+ return (0);
+ }
+
+ if (flags & ISDOTDOT) {
+ ltype = NFSVOPISLOCKED(dvp);
+ error = vfs_busy(mp, MBF_NOWAIT);
+ if (error != 0) {
+ vfs_ref(mp);
+ NFSVOPUNLOCK(dvp, 0);
+ error = vfs_busy(mp, 0);
+ NFSVOPLOCK(dvp, ltype | LK_RETRY);
+ vfs_rel(mp);
+ if (error == 0 && (dvp->v_iflag & VI_DOOMED)) {
+ vfs_unbusy(mp);
+ error = ENOENT;
+ }
+ if (error != 0)
+ return (error);
+ }
+ NFSVOPUNLOCK(dvp, 0);
+ error = nfscl_nget(mp, dvp, nfhp, cnp, td, &np, NULL,
+ cnp->cn_lkflags);
+ if (error == 0)
+ newvp = NFSTOV(np);
+ vfs_unbusy(mp);
+ if (newvp != dvp)
+ NFSVOPLOCK(dvp, ltype | LK_RETRY);
+ if (dvp->v_iflag & VI_DOOMED) {
+ if (error == 0) {
+ if (newvp == dvp)
+ vrele(newvp);
+ else
+ vput(newvp);
+ }
+ error = ENOENT;
+ }
+ if (error != 0)
+ return (error);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ } else if (NFS_CMPFH(np, nfhp->nfh_fh, nfhp->nfh_len)) {
+ free(nfhp, M_NFSFH);
+ VREF(dvp);
+ newvp = dvp;
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ } else {
+ error = nfscl_nget(mp, dvp, nfhp, cnp, td, &np, NULL,
+ cnp->cn_lkflags);
+ if (error)
+ return (error);
+ newvp = NFSTOV(np);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ else if ((flags & (ISLASTCN | ISOPEN)) == (ISLASTCN | ISOPEN) &&
+ !(np->n_flag & NMODIFIED)) {
+ /*
+ * Flush the attribute cache when opening a
+ * leaf node to ensure that fresh attributes
+ * are fetched in nfs_open() since we did not
+ * fetch attributes from the LOOKUP reply.
+ */
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(newvp);
+ NFSUNLOCKNODE(np);
+ }
+ }
+ if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
+ cnp->cn_flags |= SAVENAME;
+ if ((cnp->cn_flags & MAKEENTRY) &&
+ (cnp->cn_nameiop != DELETE || !(flags & ISLASTCN)) &&
+ attrflag != 0 && (newvp->v_type != VDIR || dattrflag != 0))
+ cache_enter_time(dvp, newvp, cnp, &nfsva.na_ctime,
+ newvp->v_type != VDIR ? NULL : &dnfsva.na_ctime);
+ *vpp = newvp;
+ return (0);
+}
+
+/*
+ * nfs read call.
+ * Just call ncl_bioread() to do the work.
+ */
+static int
+nfs_read(struct vop_read_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+
+ switch (vp->v_type) {
+ case VREG:
+ return (ncl_bioread(vp, ap->a_uio, ap->a_ioflag, ap->a_cred));
+ case VDIR:
+ return (EISDIR);
+ default:
+ return (EOPNOTSUPP);
+ }
+}
+
+/*
+ * nfs readlink call
+ */
+static int
+nfs_readlink(struct vop_readlink_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+
+ if (vp->v_type != VLNK)
+ return (EINVAL);
+ return (ncl_bioread(vp, ap->a_uio, 0, ap->a_cred));
+}
+
+/*
+ * Do a readlink rpc.
+ * Called by ncl_doio() from below the buffer cache.
+ */
+int
+ncl_readlinkrpc(struct vnode *vp, struct uio *uiop, struct ucred *cred)
+{
+ int error, ret, attrflag;
+ struct nfsvattr nfsva;
+
+ error = nfsrpc_readlink(vp, uiop, cred, uiop->uio_td, &nfsva,
+ &attrflag, NULL);
+ if (attrflag) {
+ ret = nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ if (ret && !error)
+ error = ret;
+ }
+ if (error && NFS_ISV4(vp))
+ error = nfscl_maperr(uiop->uio_td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs read rpc call
+ * Ditto above
+ */
+int
+ncl_readrpc(struct vnode *vp, struct uio *uiop, struct ucred *cred)
+{
+ int error, ret, attrflag;
+ struct nfsvattr nfsva;
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ error = EIO;
+ attrflag = 0;
+ if (NFSHASPNFS(nmp))
+ error = nfscl_doiods(vp, uiop, NULL, NULL,
+ NFSV4OPEN_ACCESSREAD, 0, cred, uiop->uio_td);
+ NFSCL_DEBUG(4, "readrpc: aft doiods=%d\n", error);
+ if (error != 0)
+ error = nfsrpc_read(vp, uiop, cred, uiop->uio_td, &nfsva,
+ &attrflag, NULL);
+ if (attrflag) {
+ ret = nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ if (ret && !error)
+ error = ret;
+ }
+ if (error && NFS_ISV4(vp))
+ error = nfscl_maperr(uiop->uio_td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs write call
+ */
+int
+ncl_writerpc(struct vnode *vp, struct uio *uiop, struct ucred *cred,
+ int *iomode, int *must_commit, int called_from_strategy)
+{
+ struct nfsvattr nfsva;
+ int error, attrflag, ret;
+ struct nfsmount *nmp;
+
+ nmp = VFSTONFS(vnode_mount(vp));
+ error = EIO;
+ attrflag = 0;
+ if (NFSHASPNFS(nmp))
+ error = nfscl_doiods(vp, uiop, iomode, must_commit,
+ NFSV4OPEN_ACCESSWRITE, 0, cred, uiop->uio_td);
+ NFSCL_DEBUG(4, "writerpc: aft doiods=%d\n", error);
+ if (error != 0)
+ error = nfsrpc_write(vp, uiop, iomode, must_commit, cred,
+ uiop->uio_td, &nfsva, &attrflag, NULL,
+ called_from_strategy);
+ if (attrflag) {
+ if (VTONFS(vp)->n_flag & ND_NFSV4)
+ ret = nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 1,
+ 1);
+ else
+ ret = nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0,
+ 1);
+ if (ret && !error)
+ error = ret;
+ }
+ if (DOINGASYNC(vp))
+ *iomode = NFSWRITE_FILESYNC;
+ if (error && NFS_ISV4(vp))
+ error = nfscl_maperr(uiop->uio_td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs mknod rpc
+ * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the
+ * mode set to specify the file type and the size field for rdev.
+ */
+static int
+nfs_mknodrpc(struct vnode *dvp, struct vnode **vpp, struct componentname *cnp,
+ struct vattr *vap)
+{
+ struct nfsvattr nfsva, dnfsva;
+ struct vnode *newvp = NULL;
+ struct nfsnode *np = NULL, *dnp;
+ struct nfsfh *nfhp;
+ struct vattr vattr;
+ int error = 0, attrflag, dattrflag;
+ u_int32_t rdev;
+
+ if (vap->va_type == VCHR || vap->va_type == VBLK)
+ rdev = vap->va_rdev;
+ else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
+ rdev = 0xffffffff;
+ else
+ return (EOPNOTSUPP);
+ if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred)))
+ return (error);
+ error = nfsrpc_mknod(dvp, cnp->cn_nameptr, cnp->cn_namelen, vap,
+ rdev, vap->va_type, cnp->cn_cred, cnp->cn_thread, &dnfsva,
+ &nfsva, &nfhp, &attrflag, &dattrflag, NULL);
+ if (!error) {
+ if (!nfhp)
+ (void) nfsrpc_lookup(dvp, cnp->cn_nameptr,
+ cnp->cn_namelen, cnp->cn_cred, cnp->cn_thread,
+ &dnfsva, &nfsva, &nfhp, &attrflag, &dattrflag,
+ NULL);
+ if (nfhp)
+ error = nfscl_nget(dvp->v_mount, dvp, nfhp, cnp,
+ cnp->cn_thread, &np, NULL, LK_EXCLUSIVE);
+ }
+ if (dattrflag)
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ if (!error) {
+ newvp = NFSTOV(np);
+ if (attrflag != 0) {
+ error = nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ if (error != 0)
+ vput(newvp);
+ }
+ }
+ if (!error) {
+ *vpp = newvp;
+ } else if (NFS_ISV4(dvp)) {
+ error = nfscl_maperr(cnp->cn_thread, error, vap->va_uid,
+ vap->va_gid);
+ }
+ dnp = VTONFS(dvp);
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (!dattrflag) {
+ dnp->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+ NFSUNLOCKNODE(dnp);
+ return (error);
+}
+
+/*
+ * nfs mknod vop
+ * just call nfs_mknodrpc() to do the work.
+ */
+/* ARGSUSED */
+static int
+nfs_mknod(struct vop_mknod_args *ap)
+{
+ return (nfs_mknodrpc(ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap));
+}
+
+static struct mtx nfs_cverf_mtx;
+MTX_SYSINIT(nfs_cverf_mtx, &nfs_cverf_mtx, "NFS create verifier mutex",
+ MTX_DEF);
+
+static nfsquad_t
+nfs_get_cverf(void)
+{
+ static nfsquad_t cverf;
+ nfsquad_t ret;
+ static int cverf_initialized = 0;
+
+ mtx_lock(&nfs_cverf_mtx);
+ if (cverf_initialized == 0) {
+ cverf.lval[0] = arc4random();
+ cverf.lval[1] = arc4random();
+ cverf_initialized = 1;
+ } else
+ cverf.qval++;
+ ret = cverf;
+ mtx_unlock(&nfs_cverf_mtx);
+
+ return (ret);
+}
+
+/*
+ * nfs file create call
+ */
+static int
+nfs_create(struct vop_create_args *ap)
+{
+ struct vnode *dvp = ap->a_dvp;
+ struct vattr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *np = NULL, *dnp;
+ struct vnode *newvp = NULL;
+ struct nfsmount *nmp;
+ struct nfsvattr dnfsva, nfsva;
+ struct nfsfh *nfhp;
+ nfsquad_t cverf;
+ int error = 0, attrflag, dattrflag, fmode = 0;
+ struct vattr vattr;
+
+ /*
+ * Oops, not for me..
+ */
+ if (vap->va_type == VSOCK)
+ return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap));
+
+ if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred)))
+ return (error);
+ if (vap->va_vaflags & VA_EXCLUSIVE)
+ fmode |= O_EXCL;
+ dnp = VTONFS(dvp);
+ nmp = VFSTONFS(vnode_mount(dvp));
+again:
+ /* For NFSv4, wait until any remove is done. */
+ NFSLOCKNODE(dnp);
+ while (NFSHASNFSV4(nmp) && (dnp->n_flag & NREMOVEINPROG)) {
+ dnp->n_flag |= NREMOVEWANT;
+ (void) msleep((caddr_t)dnp, &dnp->n_mtx, PZERO, "nfscrt", 0);
+ }
+ NFSUNLOCKNODE(dnp);
+
+ cverf = nfs_get_cverf();
+ error = nfsrpc_create(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ vap, cverf, fmode, cnp->cn_cred, cnp->cn_thread, &dnfsva, &nfsva,
+ &nfhp, &attrflag, &dattrflag, NULL);
+ if (!error) {
+ if (nfhp == NULL)
+ (void) nfsrpc_lookup(dvp, cnp->cn_nameptr,
+ cnp->cn_namelen, cnp->cn_cred, cnp->cn_thread,
+ &dnfsva, &nfsva, &nfhp, &attrflag, &dattrflag,
+ NULL);
+ if (nfhp != NULL)
+ error = nfscl_nget(dvp->v_mount, dvp, nfhp, cnp,
+ cnp->cn_thread, &np, NULL, LK_EXCLUSIVE);
+ }
+ if (dattrflag)
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ if (!error) {
+ newvp = NFSTOV(np);
+ if (attrflag == 0)
+ error = nfsrpc_getattr(newvp, cnp->cn_cred,
+ cnp->cn_thread, &nfsva, NULL);
+ if (error == 0)
+ error = nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ }
+ if (error) {
+ if (newvp != NULL) {
+ vput(newvp);
+ newvp = NULL;
+ }
+ if (NFS_ISV34(dvp) && (fmode & O_EXCL) &&
+ error == NFSERR_NOTSUPP) {
+ fmode &= ~O_EXCL;
+ goto again;
+ }
+ } else if (NFS_ISV34(dvp) && (fmode & O_EXCL)) {
+ if (nfscl_checksattr(vap, &nfsva)) {
+ error = nfsrpc_setattr(newvp, vap, NULL, cnp->cn_cred,
+ cnp->cn_thread, &nfsva, &attrflag, NULL);
+ if (error && (vap->va_uid != (uid_t)VNOVAL ||
+ vap->va_gid != (gid_t)VNOVAL)) {
+ /* try again without setting uid/gid */
+ vap->va_uid = (uid_t)VNOVAL;
+ vap->va_gid = (uid_t)VNOVAL;
+ error = nfsrpc_setattr(newvp, vap, NULL,
+ cnp->cn_cred, cnp->cn_thread, &nfsva,
+ &attrflag, NULL);
+ }
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL,
+ NULL, 0, 1);
+ if (error != 0)
+ vput(newvp);
+ }
+ }
+ if (!error) {
+ if ((cnp->cn_flags & MAKEENTRY) && attrflag)
+ cache_enter_time(dvp, newvp, cnp, &nfsva.na_ctime,
+ NULL);
+ *ap->a_vpp = newvp;
+ } else if (NFS_ISV4(dvp)) {
+ error = nfscl_maperr(cnp->cn_thread, error, vap->va_uid,
+ vap->va_gid);
+ }
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (!dattrflag) {
+ dnp->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+ NFSUNLOCKNODE(dnp);
+ return (error);
+}
+
+/*
+ * nfs file remove call
+ * To try and make nfs semantics closer to ufs semantics, a file that has
+ * other processes using the vnode is renamed instead of removed and then
+ * removed later on the last close.
+ * - If v_usecount > 1
+ * If a rename is not already in the works
+ * call nfs_sillyrename() to set it up
+ * else
+ * do the remove rpc
+ */
+static int
+nfs_remove(struct vop_remove_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct vnode *dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *np = VTONFS(vp);
+ int error = 0;
+ struct vattr vattr;
+
+ KASSERT((cnp->cn_flags & HASBUF) != 0, ("nfs_remove: no name"));
+ KASSERT(vrefcnt(vp) > 0, ("nfs_remove: bad v_usecount"));
+ if (vp->v_type == VDIR)
+ error = EPERM;
+ else if (vrefcnt(vp) == 1 || (np->n_sillyrename &&
+ VOP_GETATTR(vp, &vattr, cnp->cn_cred) == 0 &&
+ vattr.va_nlink > 1)) {
+ /*
+ * Purge the name cache so that the chance of a lookup for
+ * the name succeeding while the remove is in progress is
+ * minimized. Without node locking it can still happen, such
+ * that an I/O op returns ESTALE, but since you get this if
+ * another host removes the file..
+ */
+ cache_purge(vp);
+ /*
+ * throw away biocache buffers, mainly to avoid
+ * unnecessary delayed writes later.
+ */
+ error = ncl_vinvalbuf(vp, 0, cnp->cn_thread, 1);
+ if (error != EINTR && error != EIO)
+ /* Do the rpc */
+ error = nfs_removerpc(dvp, vp, cnp->cn_nameptr,
+ cnp->cn_namelen, cnp->cn_cred, cnp->cn_thread);
+ /*
+ * Kludge City: If the first reply to the remove rpc is lost..
+ * the reply to the retransmitted request will be ENOENT
+ * since the file was in fact removed
+ * Therefore, we cheat and return success.
+ */
+ if (error == ENOENT)
+ error = 0;
+ } else if (!np->n_sillyrename)
+ error = nfs_sillyrename(dvp, vp, cnp);
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ NFSUNLOCKNODE(np);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ return (error);
+}
+
+/*
+ * nfs file remove rpc called from nfs_inactive
+ */
+int
+ncl_removeit(struct sillyrename *sp, struct vnode *vp)
+{
+ /*
+ * Make sure that the directory vnode is still valid.
+ * XXX we should lock sp->s_dvp here.
+ */
+ if (sp->s_dvp->v_type == VBAD)
+ return (0);
+ return (nfs_removerpc(sp->s_dvp, vp, sp->s_name, sp->s_namlen,
+ sp->s_cred, NULL));
+}
+
+/*
+ * Nfs remove rpc, called from nfs_remove() and ncl_removeit().
+ */
+static int
+nfs_removerpc(struct vnode *dvp, struct vnode *vp, char *name,
+ int namelen, struct ucred *cred, struct thread *td)
+{
+ struct nfsvattr dnfsva;
+ struct nfsnode *dnp = VTONFS(dvp);
+ int error = 0, dattrflag;
+
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NREMOVEINPROG;
+ NFSUNLOCKNODE(dnp);
+ error = nfsrpc_remove(dvp, name, namelen, vp, cred, td, &dnfsva,
+ &dattrflag, NULL);
+ NFSLOCKNODE(dnp);
+ if ((dnp->n_flag & NREMOVEWANT)) {
+ dnp->n_flag &= ~(NREMOVEWANT | NREMOVEINPROG);
+ NFSUNLOCKNODE(dnp);
+ wakeup((caddr_t)dnp);
+ } else {
+ dnp->n_flag &= ~NREMOVEINPROG;
+ NFSUNLOCKNODE(dnp);
+ }
+ if (dattrflag)
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (!dattrflag) {
+ dnp->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+ NFSUNLOCKNODE(dnp);
+ if (error && NFS_ISV4(dvp))
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs file rename call
+ */
+static int
+nfs_rename(struct vop_rename_args *ap)
+{
+ struct vnode *fvp = ap->a_fvp;
+ struct vnode *tvp = ap->a_tvp;
+ struct vnode *fdvp = ap->a_fdvp;
+ struct vnode *tdvp = ap->a_tdvp;
+ struct componentname *tcnp = ap->a_tcnp;
+ struct componentname *fcnp = ap->a_fcnp;
+ struct nfsnode *fnp = VTONFS(ap->a_fvp);
+ struct nfsnode *tdnp = VTONFS(ap->a_tdvp);
+ struct nfsv4node *newv4 = NULL;
+ int error;
+
+ KASSERT((tcnp->cn_flags & HASBUF) != 0 &&
+ (fcnp->cn_flags & HASBUF) != 0, ("nfs_rename: no name"));
+ /* Check for cross-device rename */
+ if ((fvp->v_mount != tdvp->v_mount) ||
+ (tvp && (fvp->v_mount != tvp->v_mount))) {
+ error = EXDEV;
+ goto out;
+ }
+
+ if (fvp == tvp) {
+ printf("nfs_rename: fvp == tvp (can't happen)\n");
+ error = 0;
+ goto out;
+ }
+ if ((error = NFSVOPLOCK(fvp, LK_EXCLUSIVE)) != 0)
+ goto out;
+
+ /*
+ * We have to flush B_DELWRI data prior to renaming
+ * the file. If we don't, the delayed-write buffers
+ * can be flushed out later after the file has gone stale
+ * under NFSV3. NFSV2 does not have this problem because
+ * ( as far as I can tell ) it flushes dirty buffers more
+ * often.
+ *
+ * Skip the rename operation if the fsync fails, this can happen
+ * due to the server's volume being full, when we pushed out data
+ * that was written back to our cache earlier. Not checking for
+ * this condition can result in potential (silent) data loss.
+ */
+ error = VOP_FSYNC(fvp, MNT_WAIT, fcnp->cn_thread);
+ NFSVOPUNLOCK(fvp, 0);
+ if (!error && tvp)
+ error = VOP_FSYNC(tvp, MNT_WAIT, tcnp->cn_thread);
+ if (error)
+ goto out;
+
+ /*
+ * If the tvp exists and is in use, sillyrename it before doing the
+ * rename of the new file over it.
+ * XXX Can't sillyrename a directory.
+ */
+ if (tvp && vrefcnt(tvp) > 1 && !VTONFS(tvp)->n_sillyrename &&
+ tvp->v_type != VDIR && !nfs_sillyrename(tdvp, tvp, tcnp)) {
+ vput(tvp);
+ tvp = NULL;
+ }
+
+ error = nfs_renamerpc(fdvp, fvp, fcnp->cn_nameptr, fcnp->cn_namelen,
+ tdvp, tvp, tcnp->cn_nameptr, tcnp->cn_namelen, tcnp->cn_cred,
+ tcnp->cn_thread);
+
+ if (error == 0 && NFS_ISV4(tdvp)) {
+ /*
+ * For NFSv4, check to see if it is the same name and
+ * replace the name, if it is different.
+ */
+ newv4 = malloc(
+ sizeof (struct nfsv4node) +
+ tdnp->n_fhp->nfh_len + tcnp->cn_namelen - 1,
+ M_NFSV4NODE, M_WAITOK);
+ NFSLOCKNODE(tdnp);
+ NFSLOCKNODE(fnp);
+ if (fnp->n_v4 != NULL && fvp->v_type == VREG &&
+ (fnp->n_v4->n4_namelen != tcnp->cn_namelen ||
+ NFSBCMP(tcnp->cn_nameptr, NFS4NODENAME(fnp->n_v4),
+ tcnp->cn_namelen) ||
+ tdnp->n_fhp->nfh_len != fnp->n_v4->n4_fhlen ||
+ NFSBCMP(tdnp->n_fhp->nfh_fh, fnp->n_v4->n4_data,
+ tdnp->n_fhp->nfh_len))) {
+#ifdef notdef
+{ char nnn[100]; int nnnl;
+nnnl = (tcnp->cn_namelen < 100) ? tcnp->cn_namelen : 99;
+bcopy(tcnp->cn_nameptr, nnn, nnnl);
+nnn[nnnl] = '\0';
+printf("ren replace=%s\n",nnn);
+}
+#endif
+ free(fnp->n_v4, M_NFSV4NODE);
+ fnp->n_v4 = newv4;
+ newv4 = NULL;
+ fnp->n_v4->n4_fhlen = tdnp->n_fhp->nfh_len;
+ fnp->n_v4->n4_namelen = tcnp->cn_namelen;
+ NFSBCOPY(tdnp->n_fhp->nfh_fh, fnp->n_v4->n4_data,
+ tdnp->n_fhp->nfh_len);
+ NFSBCOPY(tcnp->cn_nameptr,
+ NFS4NODENAME(fnp->n_v4), tcnp->cn_namelen);
+ }
+ NFSUNLOCKNODE(tdnp);
+ NFSUNLOCKNODE(fnp);
+ if (newv4 != NULL)
+ free(newv4, M_NFSV4NODE);
+ }
+
+ if (fvp->v_type == VDIR) {
+ if (tvp != NULL && tvp->v_type == VDIR)
+ cache_purge(tdvp);
+ cache_purge(fdvp);
+ }
+
+out:
+ if (tdvp == tvp)
+ vrele(tdvp);
+ else
+ vput(tdvp);
+ if (tvp)
+ vput(tvp);
+ vrele(fdvp);
+ vrele(fvp);
+ /*
+ * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
+ */
+ if (error == ENOENT)
+ error = 0;
+ return (error);
+}
+
+/*
+ * nfs file rename rpc called from nfs_remove() above
+ */
+static int
+nfs_renameit(struct vnode *sdvp, struct vnode *svp, struct componentname *scnp,
+ struct sillyrename *sp)
+{
+
+ return (nfs_renamerpc(sdvp, svp, scnp->cn_nameptr, scnp->cn_namelen,
+ sdvp, NULL, sp->s_name, sp->s_namlen, scnp->cn_cred,
+ scnp->cn_thread));
+}
+
+/*
+ * Do an nfs rename rpc. Called from nfs_rename() and nfs_renameit().
+ */
+static int
+nfs_renamerpc(struct vnode *fdvp, struct vnode *fvp, char *fnameptr,
+ int fnamelen, struct vnode *tdvp, struct vnode *tvp, char *tnameptr,
+ int tnamelen, struct ucred *cred, struct thread *td)
+{
+ struct nfsvattr fnfsva, tnfsva;
+ struct nfsnode *fdnp = VTONFS(fdvp);
+ struct nfsnode *tdnp = VTONFS(tdvp);
+ int error = 0, fattrflag, tattrflag;
+
+ error = nfsrpc_rename(fdvp, fvp, fnameptr, fnamelen, tdvp, tvp,
+ tnameptr, tnamelen, cred, td, &fnfsva, &tnfsva, &fattrflag,
+ &tattrflag, NULL, NULL);
+ NFSLOCKNODE(fdnp);
+ fdnp->n_flag |= NMODIFIED;
+ if (fattrflag != 0) {
+ NFSUNLOCKNODE(fdnp);
+ (void) nfscl_loadattrcache(&fdvp, &fnfsva, NULL, NULL, 0, 1);
+ } else {
+ fdnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(fdnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(fdvp);
+ }
+ NFSLOCKNODE(tdnp);
+ tdnp->n_flag |= NMODIFIED;
+ if (tattrflag != 0) {
+ NFSUNLOCKNODE(tdnp);
+ (void) nfscl_loadattrcache(&tdvp, &tnfsva, NULL, NULL, 0, 1);
+ } else {
+ tdnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(tdnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(tdvp);
+ }
+ if (error && NFS_ISV4(fdvp))
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs hard link create call
+ */
+static int
+nfs_link(struct vop_link_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct vnode *tdvp = ap->a_tdvp;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *np, *tdnp;
+ struct nfsvattr nfsva, dnfsva;
+ int error = 0, attrflag, dattrflag;
+
+ /*
+ * Push all writes to the server, so that the attribute cache
+ * doesn't get "out of sync" with the server.
+ * XXX There should be a better way!
+ */
+ VOP_FSYNC(vp, MNT_WAIT, cnp->cn_thread);
+
+ error = nfsrpc_link(tdvp, vp, cnp->cn_nameptr, cnp->cn_namelen,
+ cnp->cn_cred, cnp->cn_thread, &dnfsva, &nfsva, &attrflag,
+ &dattrflag, NULL);
+ tdnp = VTONFS(tdvp);
+ NFSLOCKNODE(tdnp);
+ tdnp->n_flag |= NMODIFIED;
+ if (dattrflag != 0) {
+ NFSUNLOCKNODE(tdnp);
+ (void) nfscl_loadattrcache(&tdvp, &dnfsva, NULL, NULL, 0, 1);
+ } else {
+ tdnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(tdnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(tdvp);
+ }
+ if (attrflag)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+ else {
+ np = VTONFS(vp);
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ NFSUNLOCKNODE(np);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ }
+ /*
+ * If negative lookup caching is enabled, I might as well
+ * add an entry for this node. Not necessary for correctness,
+ * but if negative caching is enabled, then the system
+ * must care about lookup caching hit rate, so...
+ */
+ if (VFSTONFS(vp->v_mount)->nm_negnametimeo != 0 &&
+ (cnp->cn_flags & MAKEENTRY) && attrflag != 0 && error == 0) {
+ cache_enter_time(tdvp, vp, cnp, &nfsva.na_ctime, NULL);
+ }
+ if (error && NFS_ISV4(vp))
+ error = nfscl_maperr(cnp->cn_thread, error, (uid_t)0,
+ (gid_t)0);
+ return (error);
+}
+
+/*
+ * nfs symbolic link create call
+ */
+static int
+nfs_symlink(struct vop_symlink_args *ap)
+{
+ struct vnode *dvp = ap->a_dvp;
+ struct vattr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsvattr nfsva, dnfsva;
+ struct nfsfh *nfhp;
+ struct nfsnode *np = NULL, *dnp;
+ struct vnode *newvp = NULL;
+ int error = 0, attrflag, dattrflag, ret;
+
+ vap->va_type = VLNK;
+ error = nfsrpc_symlink(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ ap->a_target, vap, cnp->cn_cred, cnp->cn_thread, &dnfsva,
+ &nfsva, &nfhp, &attrflag, &dattrflag, NULL);
+ if (nfhp) {
+ ret = nfscl_nget(dvp->v_mount, dvp, nfhp, cnp, cnp->cn_thread,
+ &np, NULL, LK_EXCLUSIVE);
+ if (!ret)
+ newvp = NFSTOV(np);
+ else if (!error)
+ error = ret;
+ }
+ if (newvp != NULL) {
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ } else if (!error) {
+ /*
+ * If we do not have an error and we could not extract the
+ * newvp from the response due to the request being NFSv2, we
+ * have to do a lookup in order to obtain a newvp to return.
+ */
+ error = nfs_lookitup(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ cnp->cn_cred, cnp->cn_thread, &np);
+ if (!error)
+ newvp = NFSTOV(np);
+ }
+ if (error) {
+ if (newvp)
+ vput(newvp);
+ if (NFS_ISV4(dvp))
+ error = nfscl_maperr(cnp->cn_thread, error,
+ vap->va_uid, vap->va_gid);
+ } else {
+ *ap->a_vpp = newvp;
+ }
+
+ dnp = VTONFS(dvp);
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (dattrflag != 0) {
+ NFSUNLOCKNODE(dnp);
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ } else {
+ dnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(dnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+ /*
+ * If negative lookup caching is enabled, I might as well
+ * add an entry for this node. Not necessary for correctness,
+ * but if negative caching is enabled, then the system
+ * must care about lookup caching hit rate, so...
+ */
+ if (VFSTONFS(dvp->v_mount)->nm_negnametimeo != 0 &&
+ (cnp->cn_flags & MAKEENTRY) && attrflag != 0 && error == 0) {
+ cache_enter_time(dvp, newvp, cnp, &nfsva.na_ctime, NULL);
+ }
+ return (error);
+}
+
+/*
+ * nfs make dir call
+ */
+static int
+nfs_mkdir(struct vop_mkdir_args *ap)
+{
+ struct vnode *dvp = ap->a_dvp;
+ struct vattr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *np = NULL, *dnp;
+ struct vnode *newvp = NULL;
+ struct vattr vattr;
+ struct nfsfh *nfhp;
+ struct nfsvattr nfsva, dnfsva;
+ int error = 0, attrflag, dattrflag, ret;
+
+ if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred)) != 0)
+ return (error);
+ vap->va_type = VDIR;
+ error = nfsrpc_mkdir(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ vap, cnp->cn_cred, cnp->cn_thread, &dnfsva, &nfsva, &nfhp,
+ &attrflag, &dattrflag, NULL);
+ dnp = VTONFS(dvp);
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (dattrflag != 0) {
+ NFSUNLOCKNODE(dnp);
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ } else {
+ dnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(dnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+ if (nfhp) {
+ ret = nfscl_nget(dvp->v_mount, dvp, nfhp, cnp, cnp->cn_thread,
+ &np, NULL, LK_EXCLUSIVE);
+ if (!ret) {
+ newvp = NFSTOV(np);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL,
+ NULL, 0, 1);
+ } else if (!error)
+ error = ret;
+ }
+ if (!error && newvp == NULL) {
+ error = nfs_lookitup(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ cnp->cn_cred, cnp->cn_thread, &np);
+ if (!error) {
+ newvp = NFSTOV(np);
+ if (newvp->v_type != VDIR)
+ error = EEXIST;
+ }
+ }
+ if (error) {
+ if (newvp)
+ vput(newvp);
+ if (NFS_ISV4(dvp))
+ error = nfscl_maperr(cnp->cn_thread, error,
+ vap->va_uid, vap->va_gid);
+ } else {
+ /*
+ * If negative lookup caching is enabled, I might as well
+ * add an entry for this node. Not necessary for correctness,
+ * but if negative caching is enabled, then the system
+ * must care about lookup caching hit rate, so...
+ */
+ if (VFSTONFS(dvp->v_mount)->nm_negnametimeo != 0 &&
+ (cnp->cn_flags & MAKEENTRY) &&
+ attrflag != 0 && dattrflag != 0)
+ cache_enter_time(dvp, newvp, cnp, &nfsva.na_ctime,
+ &dnfsva.na_ctime);
+ *ap->a_vpp = newvp;
+ }
+ return (error);
+}
+
+/*
+ * nfs remove directory call
+ */
+static int
+nfs_rmdir(struct vop_rmdir_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct vnode *dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *dnp;
+ struct nfsvattr dnfsva;
+ int error, dattrflag;
+
+ if (dvp == vp)
+ return (EINVAL);
+ error = nfsrpc_rmdir(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ cnp->cn_cred, cnp->cn_thread, &dnfsva, &dattrflag, NULL);
+ dnp = VTONFS(dvp);
+ NFSLOCKNODE(dnp);
+ dnp->n_flag |= NMODIFIED;
+ if (dattrflag != 0) {
+ NFSUNLOCKNODE(dnp);
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ } else {
+ dnp->n_attrstamp = 0;
+ NFSUNLOCKNODE(dnp);
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(dvp);
+ }
+
+ cache_purge(dvp);
+ cache_purge(vp);
+ if (error && NFS_ISV4(dvp))
+ error = nfscl_maperr(cnp->cn_thread, error, (uid_t)0,
+ (gid_t)0);
+ /*
+ * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry.
+ */
+ if (error == ENOENT)
+ error = 0;
+ return (error);
+}
+
+/*
+ * nfs readdir call
+ */
+static int
+nfs_readdir(struct vop_readdir_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct uio *uio = ap->a_uio;
+ ssize_t tresid, left;
+ int error = 0;
+ struct vattr vattr;
+
+ if (ap->a_eofflag != NULL)
+ *ap->a_eofflag = 0;
+ if (vp->v_type != VDIR)
+ return(EPERM);
+
+ /*
+ * First, check for hit on the EOF offset cache
+ */
+ if (np->n_direofoffset > 0 && uio->uio_offset >= np->n_direofoffset &&
+ (np->n_flag & NMODIFIED) == 0) {
+ if (VOP_GETATTR(vp, &vattr, ap->a_cred) == 0) {
+ NFSLOCKNODE(np);
+ if ((NFS_ISV4(vp) && np->n_change == vattr.va_filerev) ||
+ !NFS_TIMESPEC_COMPARE(&np->n_mtime, &vattr.va_mtime)) {
+ NFSUNLOCKNODE(np);
+ NFSINCRGLOBAL(nfsstatsv1.direofcache_hits);
+ if (ap->a_eofflag != NULL)
+ *ap->a_eofflag = 1;
+ return (0);
+ } else
+ NFSUNLOCKNODE(np);
+ }
+ }
+
+ /*
+ * NFS always guarantees that directory entries don't straddle
+ * DIRBLKSIZ boundaries. As such, we need to limit the size
+ * to an exact multiple of DIRBLKSIZ, to avoid copying a partial
+ * directory entry.
+ */
+ left = uio->uio_resid % DIRBLKSIZ;
+ if (left == uio->uio_resid)
+ return (EINVAL);
+ uio->uio_resid -= left;
+
+ /*
+ * Call ncl_bioread() to do the real work.
+ */
+ tresid = uio->uio_resid;
+ error = ncl_bioread(vp, uio, 0, ap->a_cred);
+
+ if (!error && uio->uio_resid == tresid) {
+ NFSINCRGLOBAL(nfsstatsv1.direofcache_misses);
+ if (ap->a_eofflag != NULL)
+ *ap->a_eofflag = 1;
+ }
+
+ /* Add the partial DIRBLKSIZ (left) back in. */
+ uio->uio_resid += left;
+ return (error);
+}
+
+/*
+ * Readdir rpc call.
+ * Called from below the buffer cache by ncl_doio().
+ */
+int
+ncl_readdirrpc(struct vnode *vp, struct uio *uiop, struct ucred *cred,
+ struct thread *td)
+{
+ struct nfsvattr nfsva;
+ nfsuint64 *cookiep, cookie;
+ struct nfsnode *dnp = VTONFS(vp);
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ int error = 0, eof, attrflag;
+
+ KASSERT(uiop->uio_iovcnt == 1 &&
+ (uiop->uio_offset & (DIRBLKSIZ - 1)) == 0 &&
+ (uiop->uio_resid & (DIRBLKSIZ - 1)) == 0,
+ ("nfs readdirrpc bad uio"));
+
+ /*
+ * If there is no cookie, assume directory was stale.
+ */
+ ncl_dircookie_lock(dnp);
+ cookiep = ncl_getcookie(dnp, uiop->uio_offset, 0);
+ if (cookiep) {
+ cookie = *cookiep;
+ ncl_dircookie_unlock(dnp);
+ } else {
+ ncl_dircookie_unlock(dnp);
+ return (NFSERR_BAD_COOKIE);
+ }
+
+ if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp))
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+
+ error = nfsrpc_readdir(vp, uiop, &cookie, cred, td, &nfsva,
+ &attrflag, &eof, NULL);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+
+ if (!error) {
+ /*
+ * We are now either at the end of the directory or have filled
+ * the block.
+ */
+ if (eof)
+ dnp->n_direofoffset = uiop->uio_offset;
+ else {
+ if (uiop->uio_resid > 0)
+ printf("EEK! readdirrpc resid > 0\n");
+ ncl_dircookie_lock(dnp);
+ cookiep = ncl_getcookie(dnp, uiop->uio_offset, 1);
+ *cookiep = cookie;
+ ncl_dircookie_unlock(dnp);
+ }
+ } else if (NFS_ISV4(vp)) {
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ }
+ return (error);
+}
+
+/*
+ * NFS V3 readdir plus RPC. Used in place of ncl_readdirrpc().
+ */
+int
+ncl_readdirplusrpc(struct vnode *vp, struct uio *uiop, struct ucred *cred,
+ struct thread *td)
+{
+ struct nfsvattr nfsva;
+ nfsuint64 *cookiep, cookie;
+ struct nfsnode *dnp = VTONFS(vp);
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ int error = 0, attrflag, eof;
+
+ KASSERT(uiop->uio_iovcnt == 1 &&
+ (uiop->uio_offset & (DIRBLKSIZ - 1)) == 0 &&
+ (uiop->uio_resid & (DIRBLKSIZ - 1)) == 0,
+ ("nfs readdirplusrpc bad uio"));
+
+ /*
+ * If there is no cookie, assume directory was stale.
+ */
+ ncl_dircookie_lock(dnp);
+ cookiep = ncl_getcookie(dnp, uiop->uio_offset, 0);
+ if (cookiep) {
+ cookie = *cookiep;
+ ncl_dircookie_unlock(dnp);
+ } else {
+ ncl_dircookie_unlock(dnp);
+ return (NFSERR_BAD_COOKIE);
+ }
+
+ if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp))
+ (void)ncl_fsinfo(nmp, vp, cred, td);
+ error = nfsrpc_readdirplus(vp, uiop, &cookie, cred, td, &nfsva,
+ &attrflag, &eof, NULL);
+ if (attrflag)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
+
+ if (!error) {
+ /*
+ * We are now either at end of the directory or have filled the
+ * the block.
+ */
+ if (eof)
+ dnp->n_direofoffset = uiop->uio_offset;
+ else {
+ if (uiop->uio_resid > 0)
+ printf("EEK! readdirplusrpc resid > 0\n");
+ ncl_dircookie_lock(dnp);
+ cookiep = ncl_getcookie(dnp, uiop->uio_offset, 1);
+ *cookiep = cookie;
+ ncl_dircookie_unlock(dnp);
+ }
+ } else if (NFS_ISV4(vp)) {
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ }
+ return (error);
+}
+
+/*
+ * Silly rename. To make the NFS filesystem that is stateless look a little
+ * more like the "ufs" a remove of an active vnode is translated to a rename
+ * to a funny looking filename that is removed by nfs_inactive on the
+ * nfsnode. There is the potential for another process on a different client
+ * to create the same funny name between the nfs_lookitup() fails and the
+ * nfs_rename() completes, but...
+ */
+static int
+nfs_sillyrename(struct vnode *dvp, struct vnode *vp, struct componentname *cnp)
+{
+ struct sillyrename *sp;
+ struct nfsnode *np;
+ int error;
+ short pid;
+ unsigned int lticks;
+
+ cache_purge(dvp);
+ np = VTONFS(vp);
+ KASSERT(vp->v_type != VDIR, ("nfs: sillyrename dir"));
+ sp = malloc(sizeof (struct sillyrename),
+ M_NEWNFSREQ, M_WAITOK);
+ sp->s_cred = crhold(cnp->cn_cred);
+ sp->s_dvp = dvp;
+ VREF(dvp);
+
+ /*
+ * Fudge together a funny name.
+ * Changing the format of the funny name to accommodate more
+ * sillynames per directory.
+ * The name is now changed to .nfs.<ticks>.<pid>.4, where ticks is
+ * CPU ticks since boot.
+ */
+ pid = cnp->cn_thread->td_proc->p_pid;
+ lticks = (unsigned int)ticks;
+ for ( ; ; ) {
+ sp->s_namlen = sprintf(sp->s_name,
+ ".nfs.%08x.%04x4.4", lticks,
+ pid);
+ if (nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred,
+ cnp->cn_thread, NULL))
+ break;
+ lticks++;
+ }
+ error = nfs_renameit(dvp, vp, cnp, sp);
+ if (error)
+ goto bad;
+ error = nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred,
+ cnp->cn_thread, &np);
+ np->n_sillyrename = sp;
+ return (0);
+bad:
+ vrele(sp->s_dvp);
+ crfree(sp->s_cred);
+ free(sp, M_NEWNFSREQ);
+ return (error);
+}
+
+/*
+ * Look up a file name and optionally either update the file handle or
+ * allocate an nfsnode, depending on the value of npp.
+ * npp == NULL --> just do the lookup
+ * *npp == NULL --> allocate a new nfsnode and make sure attributes are
+ * handled too
+ * *npp != NULL --> update the file handle in the vnode
+ */
+static int
+nfs_lookitup(struct vnode *dvp, char *name, int len, struct ucred *cred,
+ struct thread *td, struct nfsnode **npp)
+{
+ struct vnode *newvp = NULL, *vp;
+ struct nfsnode *np, *dnp = VTONFS(dvp);
+ struct nfsfh *nfhp, *onfhp;
+ struct nfsvattr nfsva, dnfsva;
+ struct componentname cn;
+ int error = 0, attrflag, dattrflag;
+ u_int hash;
+
+ error = nfsrpc_lookup(dvp, name, len, cred, td, &dnfsva, &nfsva,
+ &nfhp, &attrflag, &dattrflag, NULL);
+ if (dattrflag)
+ (void) nfscl_loadattrcache(&dvp, &dnfsva, NULL, NULL, 0, 1);
+ if (npp && !error) {
+ if (*npp != NULL) {
+ np = *npp;
+ vp = NFSTOV(np);
+ /*
+ * For NFSv4, check to see if it is the same name and
+ * replace the name, if it is different.
+ */
+ if (np->n_v4 != NULL && nfsva.na_type == VREG &&
+ (np->n_v4->n4_namelen != len ||
+ NFSBCMP(name, NFS4NODENAME(np->n_v4), len) ||
+ dnp->n_fhp->nfh_len != np->n_v4->n4_fhlen ||
+ NFSBCMP(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len))) {
+#ifdef notdef
+{ char nnn[100]; int nnnl;
+nnnl = (len < 100) ? len : 99;
+bcopy(name, nnn, nnnl);
+nnn[nnnl] = '\0';
+printf("replace=%s\n",nnn);
+}
+#endif
+ free(np->n_v4, M_NFSV4NODE);
+ np->n_v4 = malloc(
+ sizeof (struct nfsv4node) +
+ dnp->n_fhp->nfh_len + len - 1,
+ M_NFSV4NODE, M_WAITOK);
+ np->n_v4->n4_fhlen = dnp->n_fhp->nfh_len;
+ np->n_v4->n4_namelen = len;
+ NFSBCOPY(dnp->n_fhp->nfh_fh, np->n_v4->n4_data,
+ dnp->n_fhp->nfh_len);
+ NFSBCOPY(name, NFS4NODENAME(np->n_v4), len);
+ }
+ hash = fnv_32_buf(nfhp->nfh_fh, nfhp->nfh_len,
+ FNV1_32_INIT);
+ onfhp = np->n_fhp;
+ /*
+ * Rehash node for new file handle.
+ */
+ vfs_hash_rehash(vp, hash);
+ np->n_fhp = nfhp;
+ if (onfhp != NULL)
+ free(onfhp, M_NFSFH);
+ newvp = NFSTOV(np);
+ } else if (NFS_CMPFH(dnp, nfhp->nfh_fh, nfhp->nfh_len)) {
+ free(nfhp, M_NFSFH);
+ VREF(dvp);
+ newvp = dvp;
+ } else {
+ cn.cn_nameptr = name;
+ cn.cn_namelen = len;
+ error = nfscl_nget(dvp->v_mount, dvp, nfhp, &cn, td,
+ &np, NULL, LK_EXCLUSIVE);
+ if (error)
+ return (error);
+ newvp = NFSTOV(np);
+ }
+ if (!attrflag && *npp == NULL) {
+ if (newvp == dvp)
+ vrele(newvp);
+ else
+ vput(newvp);
+ return (ENOENT);
+ }
+ if (attrflag)
+ (void) nfscl_loadattrcache(&newvp, &nfsva, NULL, NULL,
+ 0, 1);
+ }
+ if (npp && *npp == NULL) {
+ if (error) {
+ if (newvp) {
+ if (newvp == dvp)
+ vrele(newvp);
+ else
+ vput(newvp);
+ }
+ } else
+ *npp = np;
+ }
+ if (error && NFS_ISV4(dvp))
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * Nfs Version 3 and 4 commit rpc
+ */
+int
+ncl_commit(struct vnode *vp, u_quad_t offset, int cnt, struct ucred *cred,
+ struct thread *td)
+{
+ struct nfsvattr nfsva;
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ struct nfsnode *np;
+ struct uio uio;
+ int error, attrflag;
+
+ np = VTONFS(vp);
+ error = EIO;
+ attrflag = 0;
+ if (NFSHASPNFS(nmp) && (np->n_flag & NDSCOMMIT) != 0) {
+ uio.uio_offset = offset;
+ uio.uio_resid = cnt;
+ error = nfscl_doiods(vp, &uio, NULL, NULL,
+ NFSV4OPEN_ACCESSWRITE, 1, cred, td);
+ if (error != 0) {
+ NFSLOCKNODE(np);
+ np->n_flag &= ~NDSCOMMIT;
+ NFSUNLOCKNODE(np);
+ }
+ }
+ if (error != 0) {
+ mtx_lock(&nmp->nm_mtx);
+ if ((nmp->nm_state & NFSSTA_HASWRITEVERF) == 0) {
+ mtx_unlock(&nmp->nm_mtx);
+ return (0);
+ }
+ mtx_unlock(&nmp->nm_mtx);
+ error = nfsrpc_commit(vp, offset, cnt, cred, td, &nfsva,
+ &attrflag, NULL);
+ }
+ if (attrflag != 0)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL,
+ 0, 1);
+ if (error != 0 && NFS_ISV4(vp))
+ error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
+ return (error);
+}
+
+/*
+ * Strategy routine.
+ * For async requests when nfsiod(s) are running, queue the request by
+ * calling ncl_asyncio(), otherwise just all ncl_doio() to do the
+ * request.
+ */
+static int
+nfs_strategy(struct vop_strategy_args *ap)
+{
+ struct buf *bp;
+ struct vnode *vp;
+ struct ucred *cr;
+
+ bp = ap->a_bp;
+ vp = ap->a_vp;
+ KASSERT(bp->b_vp == vp, ("missing b_getvp"));
+ KASSERT(!(bp->b_flags & B_DONE),
+ ("nfs_strategy: buffer %p unexpectedly marked B_DONE", bp));
+ BUF_ASSERT_HELD(bp);
+
+ if (vp->v_type == VREG && bp->b_blkno == bp->b_lblkno)
+ bp->b_blkno = bp->b_lblkno * (vp->v_bufobj.bo_bsize /
+ DEV_BSIZE);
+ if (bp->b_iocmd == BIO_READ)
+ cr = bp->b_rcred;
+ else
+ cr = bp->b_wcred;
+
+ /*
+ * If the op is asynchronous and an i/o daemon is waiting
+ * queue the request, wake it up and wait for completion
+ * otherwise just do it ourselves.
+ */
+ if ((bp->b_flags & B_ASYNC) == 0 ||
+ ncl_asyncio(VFSTONFS(vp->v_mount), bp, NOCRED, curthread))
+ (void) ncl_doio(vp, bp, cr, curthread, 1);
+ return (0);
+}
+
+/*
+ * fsync vnode op. Just call ncl_flush() with commit == 1.
+ */
+/* ARGSUSED */
+static int
+nfs_fsync(struct vop_fsync_args *ap)
+{
+
+ if (ap->a_vp->v_type != VREG) {
+ /*
+ * For NFS, metadata is changed synchronously on the server,
+ * so there is nothing to flush. Also, ncl_flush() clears
+ * the NMODIFIED flag and that shouldn't be done here for
+ * directories.
+ */
+ return (0);
+ }
+ return (ncl_flush(ap->a_vp, ap->a_waitfor, ap->a_td, 1, 0));
+}
+
+/*
+ * Flush all the blocks associated with a vnode.
+ * Walk through the buffer pool and push any dirty pages
+ * associated with the vnode.
+ * If the called_from_renewthread argument is TRUE, it has been called
+ * from the NFSv4 renew thread and, as such, cannot block indefinitely
+ * waiting for a buffer write to complete.
+ */
+int
+ncl_flush(struct vnode *vp, int waitfor, struct thread *td,
+ int commit, int called_from_renewthread)
+{
+ struct nfsnode *np = VTONFS(vp);
+ struct buf *bp;
+ int i;
+ struct buf *nbp;
+ struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ int error = 0, slptimeo = 0, slpflag = 0, retv, bvecpos;
+ int passone = 1, trycnt = 0;
+ u_quad_t off, endoff, toff;
+ struct ucred* wcred = NULL;
+ struct buf **bvec = NULL;
+ struct bufobj *bo;
+#ifndef NFS_COMMITBVECSIZ
+#define NFS_COMMITBVECSIZ 20
+#endif
+ struct buf *bvec_on_stack[NFS_COMMITBVECSIZ];
+ u_int bvecsize = 0, bveccount;
+
+ if (called_from_renewthread != 0)
+ slptimeo = hz;
+ if (nmp->nm_flag & NFSMNT_INT)
+ slpflag = PCATCH;
+ if (!commit)
+ passone = 0;
+ bo = &vp->v_bufobj;
+ /*
+ * A b_flags == (B_DELWRI | B_NEEDCOMMIT) block has been written to the
+ * server, but has not been committed to stable storage on the server
+ * yet. On the first pass, the byte range is worked out and the commit
+ * rpc is done. On the second pass, ncl_writebp() is called to do the
+ * job.
+ */
+again:
+ off = (u_quad_t)-1;
+ endoff = 0;
+ bvecpos = 0;
+ if (NFS_ISV34(vp) && commit) {
+ if (bvec != NULL && bvec != bvec_on_stack)
+ free(bvec, M_TEMP);
+ /*
+ * Count up how many buffers waiting for a commit.
+ */
+ bveccount = 0;
+ BO_LOCK(bo);
+ TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
+ if (!BUF_ISLOCKED(bp) &&
+ (bp->b_flags & (B_DELWRI | B_NEEDCOMMIT))
+ == (B_DELWRI | B_NEEDCOMMIT))
+ bveccount++;
+ }
+ /*
+ * Allocate space to remember the list of bufs to commit. It is
+ * important to use M_NOWAIT here to avoid a race with nfs_write.
+ * If we can't get memory (for whatever reason), we will end up
+ * committing the buffers one-by-one in the loop below.
+ */
+ if (bveccount > NFS_COMMITBVECSIZ) {
+ /*
+ * Release the vnode interlock to avoid a lock
+ * order reversal.
+ */
+ BO_UNLOCK(bo);
+ bvec = (struct buf **)
+ malloc(bveccount * sizeof(struct buf *),
+ M_TEMP, M_NOWAIT);
+ BO_LOCK(bo);
+ if (bvec == NULL) {
+ bvec = bvec_on_stack;
+ bvecsize = NFS_COMMITBVECSIZ;
+ } else
+ bvecsize = bveccount;
+ } else {
+ bvec = bvec_on_stack;
+ bvecsize = NFS_COMMITBVECSIZ;
+ }
+ TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
+ if (bvecpos >= bvecsize)
+ break;
+ if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT, NULL)) {
+ nbp = TAILQ_NEXT(bp, b_bobufs);
+ continue;
+ }
+ if ((bp->b_flags & (B_DELWRI | B_NEEDCOMMIT)) !=
+ (B_DELWRI | B_NEEDCOMMIT)) {
+ BUF_UNLOCK(bp);
+ nbp = TAILQ_NEXT(bp, b_bobufs);
+ continue;
+ }
+ BO_UNLOCK(bo);
+ bremfree(bp);
+ /*
+ * Work out if all buffers are using the same cred
+ * so we can deal with them all with one commit.
+ *
+ * NOTE: we are not clearing B_DONE here, so we have
+ * to do it later on in this routine if we intend to
+ * initiate I/O on the bp.
+ *
+ * Note: to avoid loopback deadlocks, we do not
+ * assign b_runningbufspace.
+ */
+ if (wcred == NULL)
+ wcred = bp->b_wcred;
+ else if (wcred != bp->b_wcred)
+ wcred = NOCRED;
+ vfs_busy_pages(bp, 1);
+
+ BO_LOCK(bo);
+ /*
+ * bp is protected by being locked, but nbp is not
+ * and vfs_busy_pages() may sleep. We have to
+ * recalculate nbp.
+ */
+ nbp = TAILQ_NEXT(bp, b_bobufs);
+
+ /*
+ * A list of these buffers is kept so that the
+ * second loop knows which buffers have actually
+ * been committed. This is necessary, since there
+ * may be a race between the commit rpc and new
+ * uncommitted writes on the file.
+ */
+ bvec[bvecpos++] = bp;
+ toff = ((u_quad_t)bp->b_blkno) * DEV_BSIZE +
+ bp->b_dirtyoff;
+ if (toff < off)
+ off = toff;
+ toff += (u_quad_t)(bp->b_dirtyend - bp->b_dirtyoff);
+ if (toff > endoff)
+ endoff = toff;
+ }
+ BO_UNLOCK(bo);
+ }
+ if (bvecpos > 0) {
+ /*
+ * Commit data on the server, as required.
+ * If all bufs are using the same wcred, then use that with
+ * one call for all of them, otherwise commit each one
+ * separately.
+ */
+ if (wcred != NOCRED)
+ retv = ncl_commit(vp, off, (int)(endoff - off),
+ wcred, td);
+ else {
+ retv = 0;
+ for (i = 0; i < bvecpos; i++) {
+ off_t off, size;
+ bp = bvec[i];
+ off = ((u_quad_t)bp->b_blkno) * DEV_BSIZE +
+ bp->b_dirtyoff;
+ size = (u_quad_t)(bp->b_dirtyend
+ - bp->b_dirtyoff);
+ retv = ncl_commit(vp, off, (int)size,
+ bp->b_wcred, td);
+ if (retv) break;
+ }
+ }
+
+ if (retv == NFSERR_STALEWRITEVERF)
+ ncl_clearcommit(vp->v_mount);
+
+ /*
+ * Now, either mark the blocks I/O done or mark the
+ * blocks dirty, depending on whether the commit
+ * succeeded.
+ */
+ for (i = 0; i < bvecpos; i++) {
+ bp = bvec[i];
+ bp->b_flags &= ~(B_NEEDCOMMIT | B_CLUSTEROK);
+ if (retv) {
+ /*
+ * Error, leave B_DELWRI intact
+ */
+ vfs_unbusy_pages(bp);
+ brelse(bp);
+ } else {
+ /*
+ * Success, remove B_DELWRI ( bundirty() ).
+ *
+ * b_dirtyoff/b_dirtyend seem to be NFS
+ * specific. We should probably move that
+ * into bundirty(). XXX
+ */
+ bufobj_wref(bo);
+ bp->b_flags |= B_ASYNC;
+ bundirty(bp);
+ bp->b_flags &= ~B_DONE;
+ bp->b_ioflags &= ~BIO_ERROR;
+ bp->b_dirtyoff = bp->b_dirtyend = 0;
+ bufdone(bp);
+ }
+ }
+ }
+
+ /*
+ * Start/do any write(s) that are required.
+ */
+loop:
+ BO_LOCK(bo);
+ TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
+ if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT, NULL)) {
+ if (waitfor != MNT_WAIT || passone)
+ continue;
+
+ error = BUF_TIMELOCK(bp,
+ LK_EXCLUSIVE | LK_SLEEPFAIL | LK_INTERLOCK,
+ BO_LOCKPTR(bo), "nfsfsync", slpflag, slptimeo);
+ if (error == 0) {
+ BUF_UNLOCK(bp);
+ goto loop;
+ }
+ if (error == ENOLCK) {
+ error = 0;
+ goto loop;
+ }
+ if (called_from_renewthread != 0) {
+ /*
+ * Return EIO so the flush will be retried
+ * later.
+ */
+ error = EIO;
+ goto done;
+ }
+ if (newnfs_sigintr(nmp, td)) {
+ error = EINTR;
+ goto done;
+ }
+ if (slpflag == PCATCH) {
+ slpflag = 0;
+ slptimeo = 2 * hz;
+ }
+ goto loop;
+ }
+ if ((bp->b_flags & B_DELWRI) == 0)
+ panic("nfs_fsync: not dirty");
+ if ((passone || !commit) && (bp->b_flags & B_NEEDCOMMIT)) {
+ BUF_UNLOCK(bp);
+ continue;
+ }
+ BO_UNLOCK(bo);
+ bremfree(bp);
+ if (passone || !commit)
+ bp->b_flags |= B_ASYNC;
+ else
+ bp->b_flags |= B_ASYNC;
+ bwrite(bp);
+ if (newnfs_sigintr(nmp, td)) {
+ error = EINTR;
+ goto done;
+ }
+ goto loop;
+ }
+ if (passone) {
+ passone = 0;
+ BO_UNLOCK(bo);
+ goto again;
+ }
+ if (waitfor == MNT_WAIT) {
+ while (bo->bo_numoutput) {
+ error = bufobj_wwait(bo, slpflag, slptimeo);
+ if (error) {
+ BO_UNLOCK(bo);
+ if (called_from_renewthread != 0) {
+ /*
+ * Return EIO so that the flush will be
+ * retried later.
+ */
+ error = EIO;
+ goto done;
+ }
+ error = newnfs_sigintr(nmp, td);
+ if (error)
+ goto done;
+ if (slpflag == PCATCH) {
+ slpflag = 0;
+ slptimeo = 2 * hz;
+ }
+ BO_LOCK(bo);
+ }
+ }
+ if (bo->bo_dirty.bv_cnt != 0 && commit) {
+ BO_UNLOCK(bo);
+ goto loop;
+ }
+ /*
+ * Wait for all the async IO requests to drain
+ */
+ BO_UNLOCK(bo);
+ NFSLOCKNODE(np);
+ while (np->n_directio_asyncwr > 0) {
+ np->n_flag |= NFSYNCWAIT;
+ error = newnfs_msleep(td, &np->n_directio_asyncwr,
+ &np->n_mtx, slpflag | (PRIBIO + 1),
+ "nfsfsync", 0);
+ if (error) {
+ if (newnfs_sigintr(nmp, td)) {
+ NFSUNLOCKNODE(np);
+ error = EINTR;
+ goto done;
+ }
+ }
+ }
+ NFSUNLOCKNODE(np);
+ } else
+ BO_UNLOCK(bo);
+ if (NFSHASPNFS(nmp)) {
+ nfscl_layoutcommit(vp, td);
+ /*
+ * Invalidate the attribute cache, since writes to a DS
+ * won't update the size attribute.
+ */
+ NFSLOCKNODE(np);
+ np->n_attrstamp = 0;
+ } else
+ NFSLOCKNODE(np);
+ if (np->n_flag & NWRITEERR) {
+ error = np->n_error;
+ np->n_flag &= ~NWRITEERR;
+ }
+ if (commit && bo->bo_dirty.bv_cnt == 0 &&
+ bo->bo_numoutput == 0 && np->n_directio_asyncwr == 0)
+ np->n_flag &= ~NMODIFIED;
+ NFSUNLOCKNODE(np);
+done:
+ if (bvec != NULL && bvec != bvec_on_stack)
+ free(bvec, M_TEMP);
+ if (error == 0 && commit != 0 && waitfor == MNT_WAIT &&
+ (bo->bo_dirty.bv_cnt != 0 || bo->bo_numoutput != 0 ||
+ np->n_directio_asyncwr != 0)) {
+ if (trycnt++ < 5) {
+ /* try, try again... */
+ passone = 1;
+ wcred = NULL;
+ bvec = NULL;
+ bvecsize = 0;
+ goto again;
+ }
+ vn_printf(vp, "ncl_flush failed");
+ error = called_from_renewthread != 0 ? EIO : EBUSY;
+ }
+ return (error);
+}
+
+/*
+ * NFS advisory byte-level locks.
+ */
+static int
+nfs_advlock(struct vop_advlock_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct ucred *cred;
+ struct nfsnode *np = VTONFS(ap->a_vp);
+ struct proc *p = (struct proc *)ap->a_id;
+ struct thread *td = curthread; /* XXX */
+ struct vattr va;
+ int ret, error = EOPNOTSUPP;
+ u_quad_t size;
+
+ ret = NFSVOPLOCK(vp, LK_SHARED);
+ if (ret != 0)
+ return (EBADF);
+ if (NFS_ISV4(vp) && (ap->a_flags & (F_POSIX | F_FLOCK)) != 0) {
+ if (vp->v_type != VREG) {
+ NFSVOPUNLOCK(vp, 0);
+ return (EINVAL);
+ }
+ if ((ap->a_flags & F_POSIX) != 0)
+ cred = p->p_ucred;
+ else
+ cred = td->td_ucred;
+ NFSVOPLOCK(vp, LK_UPGRADE | LK_RETRY);
+ if (vp->v_iflag & VI_DOOMED) {
+ NFSVOPUNLOCK(vp, 0);
+ return (EBADF);
+ }
+
+ /*
+ * If this is unlocking a write locked region, flush and
+ * commit them before unlocking. This is required by
+ * RFC3530 Sec. 9.3.2.
+ */
+ if (ap->a_op == F_UNLCK &&
+ nfscl_checkwritelocked(vp, ap->a_fl, cred, td, ap->a_id,
+ ap->a_flags))
+ (void) ncl_flush(vp, MNT_WAIT, td, 1, 0);
+
+ /*
+ * Loop around doing the lock op, while a blocking lock
+ * must wait for the lock op to succeed.
+ */
+ do {
+ ret = nfsrpc_advlock(vp, np->n_size, ap->a_op,
+ ap->a_fl, 0, cred, td, ap->a_id, ap->a_flags);
+ if (ret == NFSERR_DENIED && (ap->a_flags & F_WAIT) &&
+ ap->a_op == F_SETLK) {
+ NFSVOPUNLOCK(vp, 0);
+ error = nfs_catnap(PZERO | PCATCH, ret,
+ "ncladvl");
+ if (error)
+ return (EINTR);
+ NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY);
+ if (vp->v_iflag & VI_DOOMED) {
+ NFSVOPUNLOCK(vp, 0);
+ return (EBADF);
+ }
+ }
+ } while (ret == NFSERR_DENIED && (ap->a_flags & F_WAIT) &&
+ ap->a_op == F_SETLK);
+ if (ret == NFSERR_DENIED) {
+ NFSVOPUNLOCK(vp, 0);
+ return (EAGAIN);
+ } else if (ret == EINVAL || ret == EBADF || ret == EINTR) {
+ NFSVOPUNLOCK(vp, 0);
+ return (ret);
+ } else if (ret != 0) {
+ NFSVOPUNLOCK(vp, 0);
+ return (EACCES);
+ }
+
+ /*
+ * Now, if we just got a lock, invalidate data in the buffer
+ * cache, as required, so that the coherency conforms with
+ * RFC3530 Sec. 9.3.2.
+ */
+ if (ap->a_op == F_SETLK) {
+ if ((np->n_flag & NMODIFIED) == 0) {
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ ret = VOP_GETATTR(vp, &va, cred);
+ }
+ if ((np->n_flag & NMODIFIED) || ret ||
+ np->n_change != va.va_filerev) {
+ (void) ncl_vinvalbuf(vp, V_SAVE, td, 1);
+ np->n_attrstamp = 0;
+ KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp);
+ ret = VOP_GETATTR(vp, &va, cred);
+ if (!ret) {
+ np->n_mtime = va.va_mtime;
+ np->n_change = va.va_filerev;
+ }
+ }
+ /* Mark that a file lock has been acquired. */
+ NFSLOCKNODE(np);
+ np->n_flag |= NHASBEENLOCKED;
+ NFSUNLOCKNODE(np);
+ }
+ NFSVOPUNLOCK(vp, 0);
+ return (0);
+ } else if (!NFS_ISV4(vp)) {
+ if ((VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NOLOCKD) != 0) {
+ size = VTONFS(vp)->n_size;
+ NFSVOPUNLOCK(vp, 0);
+ error = lf_advlock(ap, &(vp->v_lockf), size);
+ } else {
+ if (nfs_advlock_p != NULL)
+ error = nfs_advlock_p(ap);
+ else {
+ NFSVOPUNLOCK(vp, 0);
+ error = ENOLCK;
+ }
+ }
+ if (error == 0 && ap->a_op == F_SETLK) {
+ error = NFSVOPLOCK(vp, LK_SHARED);
+ if (error == 0) {
+ /* Mark that a file lock has been acquired. */
+ NFSLOCKNODE(np);
+ np->n_flag |= NHASBEENLOCKED;
+ NFSUNLOCKNODE(np);
+ NFSVOPUNLOCK(vp, 0);
+ }
+ }
+ } else
+ NFSVOPUNLOCK(vp, 0);
+ return (error);
+}
+
+/*
+ * NFS advisory byte-level locks.
+ */
+static int
+nfs_advlockasync(struct vop_advlockasync_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ u_quad_t size;
+ int error;
+
+ if (NFS_ISV4(vp))
+ return (EOPNOTSUPP);
+ error = NFSVOPLOCK(vp, LK_SHARED);
+ if (error)
+ return (error);
+ if ((VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NOLOCKD) != 0) {
+ size = VTONFS(vp)->n_size;
+ NFSVOPUNLOCK(vp, 0);
+ error = lf_advlockasync(ap, &(vp->v_lockf), size);
+ } else {
+ NFSVOPUNLOCK(vp, 0);
+ error = EOPNOTSUPP;
+ }
+ return (error);
+}
+
+/*
+ * Print out the contents of an nfsnode.
+ */
+static int
+nfs_print(struct vop_print_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+
+ printf("\tfileid %jd fsid 0x%jx", (uintmax_t)np->n_vattr.na_fileid,
+ (uintmax_t)np->n_vattr.na_fsid);
+ if (vp->v_type == VFIFO)
+ fifo_printinfo(vp);
+ printf("\n");
+ return (0);
+}
+
+/*
+ * This is the "real" nfs::bwrite(struct buf*).
+ * We set B_CACHE if this is a VMIO buffer.
+ */
+int
+ncl_writebp(struct buf *bp, int force __unused, struct thread *td)
+{
+ int oldflags, rtval;
+
+ BUF_ASSERT_HELD(bp);
+
+ if (bp->b_flags & B_INVAL) {
+ brelse(bp);
+ return (0);
+ }
+
+ oldflags = bp->b_flags;
+ bp->b_flags |= B_CACHE;
+
+ /*
+ * Undirty the bp. We will redirty it later if the I/O fails.
+ */
+ bundirty(bp);
+ bp->b_flags &= ~B_DONE;
+ bp->b_ioflags &= ~BIO_ERROR;
+ bp->b_iocmd = BIO_WRITE;
+
+ bufobj_wref(bp->b_bufobj);
+ curthread->td_ru.ru_oublock++;
+
+ /*
+ * Note: to avoid loopback deadlocks, we do not
+ * assign b_runningbufspace.
+ */
+ vfs_busy_pages(bp, 1);
+
+ BUF_KERNPROC(bp);
+ bp->b_iooffset = dbtob(bp->b_blkno);
+ bstrategy(bp);
+
+ if ((oldflags & B_ASYNC) != 0)
+ return (0);
+
+ rtval = bufwait(bp);
+ if (oldflags & B_DELWRI)
+ reassignbuf(bp);
+ brelse(bp);
+ return (rtval);
+}
+
+/*
+ * nfs special file access vnode op.
+ * Essentially just get vattr and then imitate iaccess() since the device is
+ * local to the client.
+ */
+static int
+nfsspec_access(struct vop_access_args *ap)
+{
+ struct vattr *vap;
+ struct ucred *cred = ap->a_cred;
+ struct vnode *vp = ap->a_vp;
+ accmode_t accmode = ap->a_accmode;
+ struct vattr vattr;
+ int error;
+
+ /*
+ * Disallow write attempts on filesystems mounted read-only;
+ * unless the file is a socket, fifo, or a block or character
+ * device resident on the filesystem.
+ */
+ if ((accmode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
+ switch (vp->v_type) {
+ case VREG:
+ case VDIR:
+ case VLNK:
+ return (EROFS);
+ default:
+ break;
+ }
+ }
+ vap = &vattr;
+ error = VOP_GETATTR(vp, vap, cred);
+ if (error)
+ goto out;
+ error = vaccess(vp->v_type, vap->va_mode, vap->va_uid, vap->va_gid,
+ accmode, cred, NULL);
+out:
+ return error;
+}
+
+/*
+ * Read wrapper for fifos.
+ */
+static int
+nfsfifo_read(struct vop_read_args *ap)
+{
+ struct nfsnode *np = VTONFS(ap->a_vp);
+ int error;
+
+ /*
+ * Set access flag.
+ */
+ NFSLOCKNODE(np);
+ np->n_flag |= NACC;
+ vfs_timestamp(&np->n_atim);
+ NFSUNLOCKNODE(np);
+ error = fifo_specops.vop_read(ap);
+ return error;
+}
+
+/*
+ * Write wrapper for fifos.
+ */
+static int
+nfsfifo_write(struct vop_write_args *ap)
+{
+ struct nfsnode *np = VTONFS(ap->a_vp);
+
+ /*
+ * Set update flag.
+ */
+ NFSLOCKNODE(np);
+ np->n_flag |= NUPD;
+ vfs_timestamp(&np->n_mtim);
+ NFSUNLOCKNODE(np);
+ return(fifo_specops.vop_write(ap));
+}
+
+/*
+ * Close wrapper for fifos.
+ *
+ * Update the times on the nfsnode then do fifo close.
+ */
+static int
+nfsfifo_close(struct vop_close_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct vattr vattr;
+ struct timespec ts;
+
+ NFSLOCKNODE(np);
+ if (np->n_flag & (NACC | NUPD)) {
+ vfs_timestamp(&ts);
+ if (np->n_flag & NACC)
+ np->n_atim = ts;
+ if (np->n_flag & NUPD)
+ np->n_mtim = ts;
+ np->n_flag |= NCHG;
+ if (vrefcnt(vp) == 1 &&
+ (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
+ VATTR_NULL(&vattr);
+ if (np->n_flag & NACC)
+ vattr.va_atime = np->n_atim;
+ if (np->n_flag & NUPD)
+ vattr.va_mtime = np->n_mtim;
+ NFSUNLOCKNODE(np);
+ (void)VOP_SETATTR(vp, &vattr, ap->a_cred);
+ goto out;
+ }
+ }
+ NFSUNLOCKNODE(np);
+out:
+ return (fifo_specops.vop_close(ap));
+}
+
+/*
+ * Just call ncl_writebp() with the force argument set to 1.
+ *
+ * NOTE: B_DONE may or may not be set in a_bp on call.
+ */
+static int
+nfs_bwrite(struct buf *bp)
+{
+
+ return (ncl_writebp(bp, 1, curthread));
+}
+
+struct buf_ops buf_ops_newnfs = {
+ .bop_name = "buf_ops_nfs",
+ .bop_write = nfs_bwrite,
+ .bop_strategy = bufstrategy,
+ .bop_sync = bufsync,
+ .bop_bdflush = bufbdflush,
+};
+
+static int
+nfs_getacl(struct vop_getacl_args *ap)
+{
+ int error;
+
+ if (ap->a_type != ACL_TYPE_NFS4)
+ return (EOPNOTSUPP);
+ error = nfsrpc_getacl(ap->a_vp, ap->a_cred, ap->a_td, ap->a_aclp,
+ NULL);
+ if (error > NFSERR_STALE) {
+ (void) nfscl_maperr(ap->a_td, error, (uid_t)0, (gid_t)0);
+ error = EPERM;
+ }
+ return (error);
+}
+
+static int
+nfs_setacl(struct vop_setacl_args *ap)
+{
+ int error;
+
+ if (ap->a_type != ACL_TYPE_NFS4)
+ return (EOPNOTSUPP);
+ error = nfsrpc_setacl(ap->a_vp, ap->a_cred, ap->a_td, ap->a_aclp,
+ NULL);
+ if (error > NFSERR_STALE) {
+ (void) nfscl_maperr(ap->a_td, error, (uid_t)0, (gid_t)0);
+ error = EPERM;
+ }
+ return (error);
+}
+
+/*
+ * Return POSIX pathconf information applicable to nfs filesystems.
+ */
+static int
+nfs_pathconf(struct vop_pathconf_args *ap)
+{
+ struct nfsv3_pathconf pc;
+ struct nfsvattr nfsva;
+ struct vnode *vp = ap->a_vp;
+ struct thread *td = curthread;
+ int attrflag, error;
+
+ if ((NFS_ISV34(vp) && (ap->a_name == _PC_LINK_MAX ||
+ ap->a_name == _PC_NAME_MAX || ap->a_name == _PC_CHOWN_RESTRICTED ||
+ ap->a_name == _PC_NO_TRUNC)) ||
+ (NFS_ISV4(vp) && ap->a_name == _PC_ACL_NFS4)) {
+ /*
+ * Since only the above 4 a_names are returned by the NFSv3
+ * Pathconf RPC, there is no point in doing it for others.
+ * For NFSv4, the Pathconf RPC (actually a Getattr Op.) can
+ * be used for _PC_NFS4_ACL as well.
+ */
+ error = nfsrpc_pathconf(vp, &pc, td->td_ucred, td, &nfsva,
+ &attrflag, NULL);
+ if (attrflag != 0)
+ (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0,
+ 1);
+ if (error != 0)
+ return (error);
+ } else {
+ /*
+ * For NFSv2 (or NFSv3 when not one of the above 4 a_names),
+ * just fake them.
+ */
+ pc.pc_linkmax = NFS_LINK_MAX;
+ pc.pc_namemax = NFS_MAXNAMLEN;
+ pc.pc_notrunc = 1;
+ pc.pc_chownrestricted = 1;
+ pc.pc_caseinsensitive = 0;
+ pc.pc_casepreserving = 1;
+ error = 0;
+ }
+ switch (ap->a_name) {
+ case _PC_LINK_MAX:
+#ifdef _LP64
+ *ap->a_retval = pc.pc_linkmax;
+#else
+ *ap->a_retval = MIN(LONG_MAX, pc.pc_linkmax);
+#endif
+ break;
+ case _PC_NAME_MAX:
+ *ap->a_retval = pc.pc_namemax;
+ break;
+ case _PC_PIPE_BUF:
+ if (ap->a_vp->v_type == VDIR || ap->a_vp->v_type == VFIFO)
+ *ap->a_retval = PIPE_BUF;
+ else
+ error = EINVAL;
+ break;
+ case _PC_CHOWN_RESTRICTED:
+ *ap->a_retval = pc.pc_chownrestricted;
+ break;
+ case _PC_NO_TRUNC:
+ *ap->a_retval = pc.pc_notrunc;
+ break;
+ case _PC_ACL_NFS4:
+ if (NFS_ISV4(vp) && nfsrv_useacl != 0 && attrflag != 0 &&
+ NFSISSET_ATTRBIT(&nfsva.na_suppattr, NFSATTRBIT_ACL))
+ *ap->a_retval = 1;
+ else
+ *ap->a_retval = 0;
+ break;
+ case _PC_ACL_PATH_MAX:
+ if (NFS_ISV4(vp))
+ *ap->a_retval = ACL_MAX_ENTRIES;
+ else
+ *ap->a_retval = 3;
+ break;
+ case _PC_PRIO_IO:
+ *ap->a_retval = 0;
+ break;
+ case _PC_SYNC_IO:
+ *ap->a_retval = 0;
+ break;
+ case _PC_ALLOC_SIZE_MIN:
+ *ap->a_retval = vp->v_mount->mnt_stat.f_bsize;
+ break;
+ case _PC_FILESIZEBITS:
+ if (NFS_ISV34(vp))
+ *ap->a_retval = 64;
+ else
+ *ap->a_retval = 32;
+ break;
+ case _PC_REC_INCR_XFER_SIZE:
+ *ap->a_retval = vp->v_mount->mnt_stat.f_iosize;
+ break;
+ case _PC_REC_MAX_XFER_SIZE:
+ *ap->a_retval = -1; /* means ``unlimited'' */
+ break;
+ case _PC_REC_MIN_XFER_SIZE:
+ *ap->a_retval = vp->v_mount->mnt_stat.f_iosize;
+ break;
+ case _PC_REC_XFER_ALIGN:
+ *ap->a_retval = PAGE_SIZE;
+ break;
+ case _PC_SYMLINK_MAX:
+ *ap->a_retval = NFS_MAXPATHLEN;
+ break;
+
+ default:
+ error = vop_stdpathconf(ap);
+ break;
+ }
+ return (error);
+}
+
diff --git a/freebsd/sys/fs/nfsclient/nfs_kdtrace.h b/freebsd/sys/fs/nfsclient/nfs_kdtrace.h
new file mode 100644
index 0000000..650f063
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfs_kdtrace.h
@@ -0,0 +1,122 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * This software was developed at the University of Cambridge Computer
+ * Laboratory with support from a grant from Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCL_NFS_KDTRACE_H_
+#define _NFSCL_NFS_KDTRACE_H_
+
+/*
+ * Definitions for NFS access cache probes.
+ */
+extern uint32_t nfscl_accesscache_flush_done_id;
+extern uint32_t nfscl_accesscache_get_hit_id;
+extern uint32_t nfscl_accesscache_get_miss_id;
+extern uint32_t nfscl_accesscache_load_done_id;
+
+/*
+ * Definitions for NFS attribute cache probes.
+ */
+extern uint32_t nfscl_attrcache_flush_done_id;
+extern uint32_t nfscl_attrcache_get_hit_id;
+extern uint32_t nfscl_attrcache_get_miss_id;
+extern uint32_t nfscl_attrcache_load_done_id;
+
+#ifdef KDTRACE_HOOKS
+#include <sys/dtrace_bsd.h>
+
+#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp) do { \
+ if (dtrace_nfscl_accesscache_flush_done_probe != NULL) \
+ (dtrace_nfscl_accesscache_flush_done_probe)( \
+ nfscl_accesscache_flush_done_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode) do { \
+ if (dtrace_nfscl_accesscache_get_hit_probe != NULL) \
+ (dtrace_nfscl_accesscache_get_hit_probe)( \
+ nfscl_accesscache_get_hit_id, (vp), (uid), \
+ (mode)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode) do { \
+ if (dtrace_nfscl_accesscache_get_miss_probe != NULL) \
+ (dtrace_nfscl_accesscache_get_miss_probe)( \
+ nfscl_accesscache_get_miss_id, (vp), (uid), \
+ (mode)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error) do { \
+ if (dtrace_nfscl_accesscache_load_done_probe != NULL) \
+ (dtrace_nfscl_accesscache_load_done_probe)( \
+ nfscl_accesscache_load_done_id, (vp), (uid), \
+ (rmode), (error)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp) do { \
+ if (dtrace_nfscl_attrcache_flush_done_probe != NULL) \
+ (dtrace_nfscl_attrcache_flush_done_probe)( \
+ nfscl_attrcache_flush_done_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap) do { \
+ if (dtrace_nfscl_attrcache_get_hit_probe != NULL) \
+ (dtrace_nfscl_attrcache_get_hit_probe)( \
+ nfscl_attrcache_get_hit_id, (vp), (vap)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp) do { \
+ if (dtrace_nfscl_attrcache_get_miss_probe != NULL) \
+ (dtrace_nfscl_attrcache_get_miss_probe)( \
+ nfscl_attrcache_get_miss_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error) do { \
+ if (dtrace_nfscl_attrcache_load_done_probe != NULL) \
+ (dtrace_nfscl_attrcache_load_done_probe)( \
+ nfscl_attrcache_load_done_id, (vp), (vap), \
+ (error)); \
+} while (0)
+
+#else /* !KDTRACE_HOOKS */
+
+#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp)
+#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode)
+#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode)
+#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error)
+
+#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp)
+#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap)
+#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp)
+#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error)
+
+#endif /* KDTRACE_HOOKS */
+
+#endif /* !_NFSCL_NFS_KDTRACE_H_ */
diff --git a/freebsd/sys/fs/nfsclient/nfsmount.h b/freebsd/sys/fs/nfsclient/nfsmount.h
new file mode 100644
index 0000000..649e59e
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfsmount.h
@@ -0,0 +1,129 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSMOUNT_H_
+#define _NFSCLIENT_NFSMOUNT_H_
+
+#include <nfs/nfs_mountcommon.h>
+
+/*
+ * Mount structure.
+ * One allocated on every NFS mount.
+ * Holds NFS specific information for mount.
+ */
+struct nfsmount {
+ struct nfsmount_common nm_com; /* Common fields for nlm */
+ uint32_t nm_privflag; /* Private flags */
+ int nm_numgrps; /* Max. size of groupslist */
+ u_char nm_fh[NFSX_FHMAX]; /* File handle of root dir */
+ int nm_fhsize; /* Size of root file handle */
+ struct nfssockreq nm_sockreq; /* Socket Info */
+ int nm_timeouts; /* Request timeouts */
+ int nm_rsize; /* Max size of read rpc */
+ int nm_wsize; /* Max size of write rpc */
+ int nm_readdirsize; /* Size of a readdir rpc */
+ int nm_readahead; /* Num. of blocks to readahead */
+ int nm_wcommitsize; /* Max size of commit for write */
+ int nm_acdirmin; /* Directory attr cache min lifetime */
+ int nm_acdirmax; /* Directory attr cache max lifetime */
+ int nm_acregmin; /* Reg file attr cache min lifetime */
+ int nm_acregmax; /* Reg file attr cache max lifetime */
+ u_char nm_verf[NFSX_VERF]; /* write verifier */
+ TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */
+ short nm_bufqlen; /* number of buffers in queue */
+ short nm_bufqwant; /* process wants to add to the queue */
+ int nm_bufqiods; /* number of iods processing queue */
+ u_int64_t nm_maxfilesize; /* maximum file size */
+ int nm_tprintf_initial_delay; /* initial delay */
+ int nm_tprintf_delay; /* interval for messages */
+ int nm_nametimeo; /* timeout for +ve entries (sec) */
+ int nm_negnametimeo; /* timeout for -ve entries (sec) */
+
+ /* Newnfs additions */
+ TAILQ_HEAD(, nfsclds) nm_sess; /* Session(s) for NFSv4.1. */
+ struct nfsclclient *nm_clp;
+ uid_t nm_uid; /* Uid for SetClientID etc. */
+ u_int64_t nm_clval; /* identifies which clientid */
+ u_int64_t nm_fsid[2]; /* NFSv4 fsid */
+ int nm_minorvers; /* Minor version # for NFSv4 */
+ u_int16_t nm_krbnamelen; /* Krb5 host principal, if any */
+ u_int16_t nm_dirpathlen; /* and mount dirpath, for V4 */
+ u_int16_t nm_srvkrbnamelen; /* and the server's target name */
+ u_char nm_name[1]; /* malloc'd actual len of krbname + dirpath */
+};
+
+#define nm_nam nm_sockreq.nr_nam
+#define nm_sotype nm_sockreq.nr_sotype
+#define nm_so nm_sockreq.nr_so
+#define nm_soflags nm_sockreq.nr_soflags
+#define nm_soproto nm_sockreq.nr_soproto
+#define nm_client nm_sockreq.nr_client
+#define nm_krbname nm_name
+#define nm_mtx nm_com.nmcom_mtx
+#define nm_flag nm_com.nmcom_flag
+#define nm_state nm_com.nmcom_state
+#define nm_mountp nm_com.nmcom_mountp
+#define nm_timeo nm_com.nmcom_timeo
+#define nm_retry nm_com.nmcom_retry
+#define nm_hostname nm_com.nmcom_hostname
+#define nm_getinfo nm_com.nmcom_getinfo
+#define nm_vinvalbuf nm_com.nmcom_vinvalbuf
+
+/* Private flags. */
+#define NFSMNTP_FORCEDISM 0x00000001
+#define NFSMNTP_CANCELRPCS 0x00000002
+
+#define NFSMNT_DIRPATH(m) (&((m)->nm_name[(m)->nm_krbnamelen + 1]))
+#define NFSMNT_SRVKRBNAME(m) \
+ (&((m)->nm_name[(m)->nm_krbnamelen + (m)->nm_dirpathlen + 2]))
+
+#if defined(_KERNEL)
+/*
+ * Convert mount ptr to nfsmount ptr.
+ */
+#define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
+
+#ifndef NFS_DEFAULT_NAMETIMEO
+#define NFS_DEFAULT_NAMETIMEO 60
+#endif
+
+#ifndef NFS_DEFAULT_NEGNAMETIMEO
+#define NFS_DEFAULT_NEGNAMETIMEO 60
+#endif
+
+#endif /* _KERNEL */
+
+#endif /* _NFSCLIENT_NFSMOUNT_H_ */
diff --git a/freebsd/sys/fs/nfsclient/nfsnode.h b/freebsd/sys/fs/nfsclient/nfsnode.h
new file mode 100644
index 0000000..66a2de3
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nfsnode.h
@@ -0,0 +1,199 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSNODE_H_
+#define _NFSCLIENT_NFSNODE_H_
+
+#include <sys/_task.h>
+
+/*
+ * Silly rename structure that hangs off the nfsnode until the name
+ * can be removed by nfs_inactive()
+ */
+struct sillyrename {
+ struct task s_task;
+ struct ucred *s_cred;
+ struct vnode *s_dvp;
+ long s_namlen;
+ char s_name[32];
+};
+
+/*
+ * This structure is used to save the logical directory offset to
+ * NFS cookie mappings.
+ * The mappings are stored in a list headed
+ * by n_cookies, as required.
+ * There is one mapping for each NFS_DIRBLKSIZ bytes of directory information
+ * stored in increasing logical offset byte order.
+ */
+#define NFSNUMCOOKIES 31
+
+struct nfsdmap {
+ LIST_ENTRY(nfsdmap) ndm_list;
+ int ndm_eocookie;
+ union {
+ nfsuint64 ndmu3_cookies[NFSNUMCOOKIES];
+ uint64_t ndmu4_cookies[NFSNUMCOOKIES];
+ } ndm_un1;
+};
+
+#define ndm_cookies ndm_un1.ndmu3_cookies
+#define ndm4_cookies ndm_un1.ndmu4_cookies
+
+struct nfs_accesscache {
+ u_int32_t mode; /* ACCESS mode cache */
+ uid_t uid; /* credentials having mode */
+ time_t stamp; /* mode cache timestamp */
+};
+
+/*
+ * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
+ * is purely coincidental.
+ * There is a unique nfsnode allocated for each active file,
+ * each current directory, each mounted-on file, text file, and the root.
+ * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
+ * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite
+ * type definitions), file handles of > 32 bytes should probably be split out
+ * into a separate malloc()'d data structure. (Reduce the size of nfsfh_t by
+ * changing the definition in nfsproto.h of NFS_SMALLFH.)
+ * NB: Hopefully the current order of the fields is such that everything will
+ * be well aligned and, therefore, tightly packed.
+ */
+struct nfsnode {
+ struct mtx n_mtx; /* Protects all of these members */
+ struct lock n_excl; /* Exclusive helper for shared
+ vnode lock */
+ u_quad_t n_size; /* Current size of file */
+ u_quad_t n_brev; /* Modify rev when cached */
+ u_quad_t n_lrev; /* Modify rev for lease */
+ struct nfsvattr n_vattr; /* Vnode attribute cache */
+ time_t n_attrstamp; /* Attr. cache timestamp */
+ struct nfs_accesscache n_accesscache[NFS_ACCESSCACHESIZE];
+ struct timespec n_mtime; /* Prev modify time. */
+ struct nfsfh *n_fhp; /* NFS File Handle */
+ struct vnode *n_vnode; /* associated vnode */
+ struct vnode *n_dvp; /* parent vnode */
+ struct lockf *n_lockf; /* Locking record of file */
+ int n_error; /* Save write error value */
+ union {
+ struct timespec nf_atim; /* Special file times */
+ nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */
+ u_char nd4_cookieverf[NFSX_VERF];
+ } n_un1;
+ union {
+ struct timespec nf_mtim;
+ off_t nd_direof; /* Dir. EOF offset cache */
+ } n_un2;
+ union {
+ struct sillyrename *nf_silly; /* Ptr to silly rename struct */
+ LIST_HEAD(, nfsdmap) nd_cook; /* cookies */
+ } n_un3;
+ short n_fhsize; /* size in bytes, of fh */
+ u_int32_t n_flag; /* Flag for locking.. */
+ int n_directio_opens;
+ int n_directio_asyncwr;
+ u_int64_t n_change; /* old Change attribute */
+ struct nfsv4node *n_v4; /* extra V4 stuff */
+ struct ucred *n_writecred; /* Cred. for putpages */
+};
+
+#define n_atim n_un1.nf_atim
+#define n_mtim n_un2.nf_mtim
+#define n_sillyrename n_un3.nf_silly
+#define n_cookieverf n_un1.nd_cookieverf
+#define n4_cookieverf n_un1.nd4_cookieverf
+#define n_direofoffset n_un2.nd_direof
+#define n_cookies n_un3.nd_cook
+
+/*
+ * Flags for n_flag
+ */
+#define NDIRCOOKIELK 0x00000001 /* Lock to serialize access to directory cookies */
+#define NFSYNCWAIT 0x00000002 /* fsync waiting for all directio async
+ writes to drain */
+#define NMODIFIED 0x00000004 /* Might have a modified buffer in bio */
+#define NWRITEERR 0x00000008 /* Flag write errors so close will know */
+#define NCREATED 0x00000010 /* Opened by nfs_create() */
+#define NTRUNCATE 0x00000020 /* Opened by nfs_setattr() */
+#define NSIZECHANGED 0x00000040 /* File size has changed: need cache inval */
+#define NNONCACHE 0x00000080 /* Node marked as noncacheable */
+#define NACC 0x00000100 /* Special file accessed */
+#define NUPD 0x00000200 /* Special file updated */
+#define NCHG 0x00000400 /* Special file times changed */
+#define NDELEGMOD 0x00000800 /* Modified delegation */
+#define NDELEGRECALL 0x00001000 /* Recall in progress */
+#define NREMOVEINPROG 0x00002000 /* Remove in progress */
+#define NREMOVEWANT 0x00004000 /* Want notification that remove is done */
+#define NLOCK 0x00008000 /* Sleep lock the node */
+#define NLOCKWANT 0x00010000 /* Want the sleep lock */
+#define NNOLAYOUT 0x00020000 /* Can't get a layout for this file */
+#define NWRITEOPENED 0x00040000 /* Has been opened for writing */
+#define NHASBEENLOCKED 0x00080000 /* Has been file locked. */
+#define NDSCOMMIT 0x00100000 /* Commit is done via the DS. */
+#define NVNSETSZSKIP 0x00200000 /* Skipped vnode_pager_setsize() */
+
+/*
+ * Convert between nfsnode pointers and vnode pointers
+ */
+#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
+#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
+
+#define NFS_TIMESPEC_COMPARE(T1, T2) (((T1)->tv_sec != (T2)->tv_sec) || ((T1)->tv_nsec != (T2)->tv_nsec))
+
+#if defined(_KERNEL)
+
+/*
+ * Prototypes for NFS vnode operations
+ */
+int ncl_getpages(struct vop_getpages_args *);
+int ncl_putpages(struct vop_putpages_args *);
+int ncl_write(struct vop_write_args *);
+int ncl_inactive(struct vop_inactive_args *);
+int ncl_reclaim(struct vop_reclaim_args *);
+
+/* other stuff */
+int ncl_removeit(struct sillyrename *, struct vnode *);
+int ncl_nget(struct mount *, u_int8_t *, int, struct nfsnode **, int);
+nfsuint64 *ncl_getcookie(struct nfsnode *, off_t, int);
+void ncl_invaldir(struct vnode *);
+bool ncl_excl_start(struct vnode *);
+void ncl_excl_finish(struct vnode *, bool old_lock);
+void ncl_dircookie_lock(struct nfsnode *);
+void ncl_dircookie_unlock(struct nfsnode *);
+
+#endif /* _KERNEL */
+
+#endif /* _NFSCLIENT_NFSNODE_H_ */
diff --git a/freebsd/sys/fs/nfsclient/nlminfo.h b/freebsd/sys/fs/nfsclient/nlminfo.h
new file mode 100644
index 0000000..872e20e
--- /dev/null
+++ b/freebsd/sys/fs/nfsclient/nlminfo.h
@@ -0,0 +1,43 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1998 Berkeley Software Design, Inc. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Misc NLM informationi, some needed for the master lockd process, and some
+ * needed by every process doing nlm based locking.
+ */
+struct nlminfo {
+ /* these are used by any process doing nlm locking */
+ int msg_seq; /* sequence counter for lock requests */
+ int retcode; /* return code for lock requests */
+ int set_getlk_pid;
+ int getlk_pid;
+ struct timeval pid_start; /* process starting time */
+};
diff --git a/freebsd/sys/nfs/bootp_subr.c b/freebsd/sys/nfs/bootp_subr.c
new file mode 100644
index 0000000..07418af
--- /dev/null
+++ b/freebsd/sys/nfs/bootp_subr.c
@@ -0,0 +1,1904 @@
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright (c) 1995 Gordon Ross, Adam Glass
+ * Copyright (c) 1992 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * based on:
+ * nfs/krpc_subr.c
+ * $NetBSD: krpc_subr.c,v 1.10 1995/08/08 20:43:43 gwr Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_bootp.h"
+#include "opt_nfs.h"
+#include "opt_rootdevname.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/endian.h>
+#include <sys/jail.h>
+#include <sys/kernel.h>
+#include <sys/sockio.h>
+#include <sys/malloc.h>
+#include <sys/mount.h>
+#include <sys/mbuf.h>
+#include <sys/proc.h>
+#include <sys/reboot.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/sysctl.h>
+#include <sys/uio.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+#include <net/route.h>
+#ifdef BOOTP_DEBUG
+#include <net/route_var.h>
+#endif
+
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <net/if_types.h>
+#include <net/if_dl.h>
+#include <net/vnet.h>
+
+#include <nfs/nfsproto.h>
+#include <nfsclient/nfs.h>
+#include <nfs/nfsdiskless.h>
+#include <nfs/krpc.h>
+#include <nfs/xdr_subs.h>
+
+#define BOOTP_MIN_LEN 300 /* Minimum size of bootp udp packet */
+
+#ifndef BOOTP_SETTLE_DELAY
+#define BOOTP_SETTLE_DELAY 3
+#endif
+
+/*
+ * Wait 10 seconds for interface appearance
+ * USB ethernet adapters might require some time to pop up
+ */
+#ifndef BOOTP_IFACE_WAIT_TIMEOUT
+#define BOOTP_IFACE_WAIT_TIMEOUT 10
+#endif
+
+/*
+ * What is the longest we will wait before re-sending a request?
+ * Note this is also the frequency of "RPC timeout" messages.
+ * The re-send loop count sup linearly to this maximum, so the
+ * first complaint will happen after (1+2+3+4+5)=15 seconds.
+ */
+#define MAX_RESEND_DELAY 5 /* seconds */
+
+/* Definitions from RFC951 */
+struct bootp_packet {
+ u_int8_t op;
+ u_int8_t htype;
+ u_int8_t hlen;
+ u_int8_t hops;
+ u_int32_t xid;
+ u_int16_t secs;
+ u_int16_t flags;
+ struct in_addr ciaddr;
+ struct in_addr yiaddr;
+ struct in_addr siaddr;
+ struct in_addr giaddr;
+ unsigned char chaddr[16];
+ char sname[64];
+ char file[128];
+ unsigned char vend[1222];
+};
+
+struct bootpc_ifcontext {
+ STAILQ_ENTRY(bootpc_ifcontext) next;
+ struct bootp_packet call;
+ struct bootp_packet reply;
+ int replylen;
+ int overload;
+ union {
+ struct ifreq _ifreq;
+ struct in_aliasreq _in_alias_req;
+ } _req;
+#define ireq _req._ifreq
+#define iareq _req._in_alias_req
+ struct ifnet *ifp;
+ struct sockaddr_dl *sdl;
+ struct sockaddr_in myaddr;
+ struct sockaddr_in netmask;
+ struct sockaddr_in gw;
+ int gotgw;
+ int gotnetmask;
+ int gotrootpath;
+ int outstanding;
+ int sentmsg;
+ u_int32_t xid;
+ enum {
+ IF_BOOTP_UNRESOLVED,
+ IF_BOOTP_RESOLVED,
+ IF_BOOTP_FAILED,
+ IF_DHCP_UNRESOLVED,
+ IF_DHCP_OFFERED,
+ IF_DHCP_RESOLVED,
+ IF_DHCP_FAILED,
+ } state;
+ int dhcpquerytype; /* dhcp type sent */
+ struct in_addr dhcpserver;
+ int gotdhcpserver;
+ uint16_t mtu;
+};
+
+#define TAG_MAXLEN 1024
+struct bootpc_tagcontext {
+ char buf[TAG_MAXLEN + 1];
+ int overload;
+ int badopt;
+ int badtag;
+ int foundopt;
+ int taglen;
+};
+
+struct bootpc_globalcontext {
+ STAILQ_HEAD(, bootpc_ifcontext) interfaces;
+ u_int32_t xid;
+ int any_root_overrides;
+ int gotrootpath;
+ int gotgw;
+ int ifnum;
+ int secs;
+ int starttime;
+ struct bootp_packet reply;
+ int replylen;
+ struct bootpc_ifcontext *setrootfs;
+ struct bootpc_ifcontext *sethostname;
+ struct bootpc_tagcontext tmptag;
+ struct bootpc_tagcontext tag;
+};
+
+#define IPPORT_BOOTPC 68
+#define IPPORT_BOOTPS 67
+
+#define BOOTP_REQUEST 1
+#define BOOTP_REPLY 2
+
+/* Common tags */
+#define TAG_PAD 0 /* Pad option, implicit length 1 */
+#define TAG_SUBNETMASK 1 /* RFC 950 subnet mask */
+#define TAG_ROUTERS 3 /* Routers (in order of preference) */
+#define TAG_HOSTNAME 12 /* Client host name */
+#define TAG_ROOT 17 /* Root path */
+#define TAG_INTF_MTU 26 /* Interface MTU Size (RFC2132) */
+
+/* DHCP specific tags */
+#define TAG_OVERLOAD 52 /* Option Overload */
+#define TAG_MAXMSGSIZE 57 /* Maximum DHCP Message Size */
+
+#define TAG_END 255 /* End Option (i.e. no more options) */
+
+/* Overload values */
+#define OVERLOAD_FILE 1
+#define OVERLOAD_SNAME 2
+
+/* Site specific tags: */
+#define TAG_ROOTOPTS 130
+#define TAG_COOKIE 134 /* ascii info for userland, via sysctl */
+
+#define TAG_DHCP_MSGTYPE 53
+#define TAG_DHCP_REQ_ADDR 50
+#define TAG_DHCP_SERVERID 54
+#define TAG_DHCP_LEASETIME 51
+
+#define TAG_VENDOR_INDENTIFIER 60
+
+#define DHCP_NOMSG 0
+#define DHCP_DISCOVER 1
+#define DHCP_OFFER 2
+#define DHCP_REQUEST 3
+#define DHCP_ACK 5
+
+/* NFS read/write block size */
+#ifndef BOOTP_BLOCKSIZE
+#define BOOTP_BLOCKSIZE 8192
+#endif
+
+static char bootp_cookie[128];
+static struct socket *bootp_so;
+SYSCTL_STRING(_kern, OID_AUTO, bootp_cookie, CTLFLAG_RD,
+ bootp_cookie, 0, "Cookie (T134) supplied by bootp server");
+
+/* mountd RPC */
+static int md_mount(struct sockaddr_in *mdsin, char *path, u_char *fhp,
+ int *fhsizep, struct nfs_args *args, struct thread *td);
+static int setfs(struct sockaddr_in *addr, char *path, char *p,
+ const struct in_addr *siaddr);
+static int getdec(char **ptr);
+static int getip(char **ptr, struct in_addr *ip);
+static void mountopts(struct nfs_args *args, char *p);
+static int xdr_opaque_decode(struct mbuf **ptr, u_char *buf, int len);
+static int xdr_int_decode(struct mbuf **ptr, int *iptr);
+static void print_in_addr(struct in_addr addr);
+static void print_sin_addr(struct sockaddr_in *addr);
+static void clear_sinaddr(struct sockaddr_in *sin);
+static void allocifctx(struct bootpc_globalcontext *gctx);
+static void bootpc_compose_query(struct bootpc_ifcontext *ifctx,
+ struct thread *td);
+static unsigned char *bootpc_tag(struct bootpc_tagcontext *tctx,
+ struct bootp_packet *bp, int len, int tag);
+static void bootpc_tag_helper(struct bootpc_tagcontext *tctx,
+ unsigned char *start, int len, int tag);
+
+#ifdef BOOTP_DEBUG
+void bootpboot_p_sa(struct sockaddr *sa, struct sockaddr *ma);
+void bootpboot_p_rtentry(struct rtentry *rt);
+void bootpboot_p_tree(struct radix_node *rn);
+void bootpboot_p_rtlist(void);
+void bootpboot_p_if(struct ifnet *ifp, struct ifaddr *ifa);
+void bootpboot_p_iflist(void);
+#endif
+
+static int bootpc_call(struct bootpc_globalcontext *gctx,
+ struct thread *td);
+
+static void bootpc_fakeup_interface(struct bootpc_ifcontext *ifctx,
+ struct thread *td);
+
+static void bootpc_adjust_interface(struct bootpc_ifcontext *ifctx,
+ struct bootpc_globalcontext *gctx, struct thread *td);
+
+static void bootpc_decode_reply(struct nfsv3_diskless *nd,
+ struct bootpc_ifcontext *ifctx,
+ struct bootpc_globalcontext *gctx);
+
+static int bootpc_received(struct bootpc_globalcontext *gctx,
+ struct bootpc_ifcontext *ifctx);
+
+static __inline int bootpc_ifctx_isresolved(struct bootpc_ifcontext *ifctx);
+static __inline int bootpc_ifctx_isunresolved(struct bootpc_ifcontext *ifctx);
+static __inline int bootpc_ifctx_isfailed(struct bootpc_ifcontext *ifctx);
+
+/*
+ * In order to have multiple active interfaces with address 0.0.0.0
+ * and be able to send data to a selected interface, we first set
+ * mask to /8 on all interfaces, and temporarily set it to /0 when
+ * doing sosend().
+ */
+
+#ifdef BOOTP_DEBUG
+void
+bootpboot_p_sa(struct sockaddr *sa, struct sockaddr *ma)
+{
+
+ if (sa == NULL) {
+ printf("(sockaddr *) <null>");
+ return;
+ }
+ switch (sa->sa_family) {
+ case AF_INET:
+ {
+ struct sockaddr_in *sin;
+
+ sin = (struct sockaddr_in *) sa;
+ printf("inet ");
+ print_sin_addr(sin);
+ if (ma != NULL) {
+ sin = (struct sockaddr_in *) ma;
+ printf(" mask ");
+ print_sin_addr(sin);
+ }
+ }
+ break;
+ case AF_LINK:
+ {
+ struct sockaddr_dl *sli;
+ int i;
+
+ sli = (struct sockaddr_dl *) sa;
+ printf("link %.*s ", sli->sdl_nlen, sli->sdl_data);
+ for (i = 0; i < sli->sdl_alen; i++) {
+ if (i > 0)
+ printf(":");
+ printf("%x", ((unsigned char *) LLADDR(sli))[i]);
+ }
+ }
+ break;
+ default:
+ printf("af%d", sa->sa_family);
+ }
+}
+
+void
+bootpboot_p_rtentry(struct rtentry *rt)
+{
+
+ bootpboot_p_sa(rt_key(rt), rt_mask(rt));
+ printf(" ");
+ bootpboot_p_sa(rt->rt_gateway, NULL);
+ printf(" ");
+ printf("flags %x", (unsigned short) rt->rt_flags);
+ printf(" %d", (int) rt->rt_expire);
+ printf(" %s\n", rt->rt_ifp->if_xname);
+}
+
+void
+bootpboot_p_tree(struct radix_node *rn)
+{
+
+ while (rn != NULL) {
+ if (rn->rn_bit < 0) {
+ if ((rn->rn_flags & RNF_ROOT) != 0) {
+ } else {
+ bootpboot_p_rtentry((struct rtentry *) rn);
+ }
+ rn = rn->rn_dupedkey;
+ } else {
+ bootpboot_p_tree(rn->rn_left);
+ bootpboot_p_tree(rn->rn_right);
+ return;
+ }
+ }
+}
+
+void
+bootpboot_p_rtlist(void)
+{
+ RIB_RLOCK_TRACKER;
+ struct rib_head *rnh;
+
+ printf("Routing table:\n");
+ rnh = rt_tables_get_rnh(0, AF_INET);
+ if (rnh == NULL)
+ return;
+ RIB_RLOCK(rnh); /* could sleep XXX */
+ bootpboot_p_tree(rnh->rnh_treetop);
+ RIB_RUNLOCK(rnh);
+}
+
+void
+bootpboot_p_if(struct ifnet *ifp, struct ifaddr *ifa)
+{
+
+ printf("%s flags %x, addr ",
+ ifp->if_xname, ifp->if_flags);
+ print_sin_addr((struct sockaddr_in *) ifa->ifa_addr);
+ printf(", broadcast ");
+ print_sin_addr((struct sockaddr_in *) ifa->ifa_dstaddr);
+ printf(", netmask ");
+ print_sin_addr((struct sockaddr_in *) ifa->ifa_netmask);
+ printf("\n");
+}
+
+void
+bootpboot_p_iflist(void)
+{
+ struct ifnet *ifp;
+ struct ifaddr *ifa;
+
+ printf("Interface list:\n");
+ IFNET_RLOCK();
+ for (ifp = CK_STAILQ_FIRST(&V_ifnet);
+ ifp != NULL;
+ ifp = CK_STAILQ_NEXT(ifp, if_link)) {
+ for (ifa = CK_STAILQ_FIRST(&ifp->if_addrhead);
+ ifa != NULL;
+ ifa = CK_STAILQ_NEXT(ifa, ifa_link))
+ if (ifa->ifa_addr->sa_family == AF_INET)
+ bootpboot_p_if(ifp, ifa);
+ }
+ IFNET_RUNLOCK();
+}
+#endif /* defined(BOOTP_DEBUG) */
+
+static void
+clear_sinaddr(struct sockaddr_in *sin)
+{
+
+ bzero(sin, sizeof(*sin));
+ sin->sin_len = sizeof(*sin);
+ sin->sin_family = AF_INET;
+ sin->sin_addr.s_addr = INADDR_ANY; /* XXX: htonl(INAADDR_ANY) ? */
+ sin->sin_port = 0;
+}
+
+static void
+allocifctx(struct bootpc_globalcontext *gctx)
+{
+ struct bootpc_ifcontext *ifctx;
+
+ ifctx = malloc(sizeof(*ifctx), M_TEMP, M_WAITOK | M_ZERO);
+ ifctx->xid = gctx->xid;
+#ifdef BOOTP_NO_DHCP
+ ifctx->state = IF_BOOTP_UNRESOLVED;
+#else
+ ifctx->state = IF_DHCP_UNRESOLVED;
+#endif
+ gctx->xid += 0x100;
+ STAILQ_INSERT_TAIL(&gctx->interfaces, ifctx, next);
+}
+
+static __inline int
+bootpc_ifctx_isresolved(struct bootpc_ifcontext *ifctx)
+{
+
+ if (ifctx->state == IF_BOOTP_RESOLVED ||
+ ifctx->state == IF_DHCP_RESOLVED)
+ return 1;
+ return 0;
+}
+
+static __inline int
+bootpc_ifctx_isunresolved(struct bootpc_ifcontext *ifctx)
+{
+
+ if (ifctx->state == IF_BOOTP_UNRESOLVED ||
+ ifctx->state == IF_DHCP_UNRESOLVED)
+ return 1;
+ return 0;
+}
+
+static __inline int
+bootpc_ifctx_isfailed(struct bootpc_ifcontext *ifctx)
+{
+
+ if (ifctx->state == IF_BOOTP_FAILED ||
+ ifctx->state == IF_DHCP_FAILED)
+ return 1;
+ return 0;
+}
+
+static int
+bootpc_received(struct bootpc_globalcontext *gctx,
+ struct bootpc_ifcontext *ifctx)
+{
+ unsigned char dhcpreplytype;
+ char *p;
+
+ /*
+ * Need timeout for fallback to less
+ * desirable alternative.
+ */
+
+ /* This call used for the side effect (badopt flag) */
+ (void) bootpc_tag(&gctx->tmptag, &gctx->reply,
+ gctx->replylen,
+ TAG_END);
+
+ /* If packet is invalid, ignore it */
+ if (gctx->tmptag.badopt != 0)
+ return 0;
+
+ p = bootpc_tag(&gctx->tmptag, &gctx->reply,
+ gctx->replylen, TAG_DHCP_MSGTYPE);
+ if (p != NULL)
+ dhcpreplytype = *p;
+ else
+ dhcpreplytype = DHCP_NOMSG;
+
+ switch (ifctx->dhcpquerytype) {
+ case DHCP_DISCOVER:
+ if (dhcpreplytype != DHCP_OFFER /* Normal DHCP offer */
+#ifndef BOOTP_FORCE_DHCP
+ && dhcpreplytype != DHCP_NOMSG /* Fallback to BOOTP */
+#endif
+ )
+ return 0;
+ break;
+ case DHCP_REQUEST:
+ if (dhcpreplytype != DHCP_ACK)
+ return 0;
+ case DHCP_NOMSG:
+ break;
+ }
+
+ /* Ignore packet unless it gives us a root tag we didn't have */
+
+ if ((ifctx->state == IF_BOOTP_RESOLVED ||
+ (ifctx->dhcpquerytype == DHCP_DISCOVER &&
+ (ifctx->state == IF_DHCP_OFFERED ||
+ ifctx->state == IF_DHCP_RESOLVED))) &&
+ (bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_ROOT) != NULL ||
+ bootpc_tag(&gctx->tmptag, &gctx->reply,
+ gctx->replylen,
+ TAG_ROOT) == NULL))
+ return 0;
+
+ bcopy(&gctx->reply, &ifctx->reply, gctx->replylen);
+ ifctx->replylen = gctx->replylen;
+
+ /* XXX: Only reset if 'perfect' response */
+ if (ifctx->state == IF_BOOTP_UNRESOLVED)
+ ifctx->state = IF_BOOTP_RESOLVED;
+ else if (ifctx->state == IF_DHCP_UNRESOLVED &&
+ ifctx->dhcpquerytype == DHCP_DISCOVER) {
+ if (dhcpreplytype == DHCP_OFFER)
+ ifctx->state = IF_DHCP_OFFERED;
+ else
+ ifctx->state = IF_BOOTP_RESOLVED; /* Fallback */
+ } else if (ifctx->state == IF_DHCP_OFFERED &&
+ ifctx->dhcpquerytype == DHCP_REQUEST)
+ ifctx->state = IF_DHCP_RESOLVED;
+
+
+ if (ifctx->dhcpquerytype == DHCP_DISCOVER &&
+ ifctx->state != IF_BOOTP_RESOLVED) {
+ p = bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen, TAG_DHCP_SERVERID);
+ if (p != NULL && gctx->tmptag.taglen == 4) {
+ memcpy(&ifctx->dhcpserver, p, 4);
+ ifctx->gotdhcpserver = 1;
+ } else
+ ifctx->gotdhcpserver = 0;
+ return 1;
+ }
+
+ ifctx->gotrootpath = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_ROOT) != NULL);
+ ifctx->gotgw = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_ROUTERS) != NULL);
+ ifctx->gotnetmask = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_SUBNETMASK) != NULL);
+ return 1;
+}
+
+static int
+bootpc_call(struct bootpc_globalcontext *gctx, struct thread *td)
+{
+ struct sockaddr_in *sin, dst;
+ struct uio auio;
+ struct sockopt sopt;
+ struct iovec aio;
+ int error, on, rcvflg, timo, len;
+ time_t atimo;
+ time_t rtimo;
+ struct timeval tv;
+ struct bootpc_ifcontext *ifctx;
+ int outstanding;
+ int gotrootpath;
+ int retry;
+ const char *s;
+
+ tv.tv_sec = 1;
+ tv.tv_usec = 0;
+ bzero(&sopt, sizeof(sopt));
+ sopt.sopt_dir = SOPT_SET;
+ sopt.sopt_level = SOL_SOCKET;
+ sopt.sopt_name = SO_RCVTIMEO;
+ sopt.sopt_val = &tv;
+ sopt.sopt_valsize = sizeof tv;
+
+ error = sosetopt(bootp_so, &sopt);
+ if (error != 0)
+ goto out;
+
+ /*
+ * Enable broadcast.
+ */
+ on = 1;
+ sopt.sopt_name = SO_BROADCAST;
+ sopt.sopt_val = &on;
+ sopt.sopt_valsize = sizeof on;
+
+ error = sosetopt(bootp_so, &sopt);
+ if (error != 0)
+ goto out;
+
+ /*
+ * Disable routing.
+ */
+
+ on = 1;
+ sopt.sopt_name = SO_DONTROUTE;
+ sopt.sopt_val = &on;
+ sopt.sopt_valsize = sizeof on;
+
+ error = sosetopt(bootp_so, &sopt);
+ if (error != 0)
+ goto out;
+
+ /*
+ * Bind the local endpoint to a bootp client port.
+ */
+ sin = &dst;
+ clear_sinaddr(sin);
+ sin->sin_port = htons(IPPORT_BOOTPC);
+ error = sobind(bootp_so, (struct sockaddr *)sin, td);
+ if (error != 0) {
+ printf("bind failed\n");
+ goto out;
+ }
+
+ /*
+ * Setup socket address for the server.
+ */
+ sin = &dst;
+ clear_sinaddr(sin);
+ sin->sin_addr.s_addr = INADDR_BROADCAST;
+ sin->sin_port = htons(IPPORT_BOOTPS);
+
+ /*
+ * Send it, repeatedly, until a reply is received,
+ * but delay each re-send by an increasing amount.
+ * If the delay hits the maximum, start complaining.
+ */
+ timo = 0;
+ rtimo = 0;
+ for (;;) {
+
+ outstanding = 0;
+ gotrootpath = 0;
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
+ if (bootpc_ifctx_isresolved(ifctx) != 0 &&
+ bootpc_tag(&gctx->tmptag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_ROOT) != NULL)
+ gotrootpath = 1;
+ }
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
+ struct in_aliasreq *ifra = &ifctx->iareq;
+ sin = (struct sockaddr_in *)&ifra->ifra_mask;
+
+ ifctx->outstanding = 0;
+ if (bootpc_ifctx_isresolved(ifctx) != 0 &&
+ gotrootpath != 0) {
+ continue;
+ }
+ if (bootpc_ifctx_isfailed(ifctx) != 0)
+ continue;
+
+ outstanding++;
+ ifctx->outstanding = 1;
+
+ /* Proceed to next step in DHCP negotiation */
+ if ((ifctx->state == IF_DHCP_OFFERED &&
+ ifctx->dhcpquerytype != DHCP_REQUEST) ||
+ (ifctx->state == IF_DHCP_UNRESOLVED &&
+ ifctx->dhcpquerytype != DHCP_DISCOVER) ||
+ (ifctx->state == IF_BOOTP_UNRESOLVED &&
+ ifctx->dhcpquerytype != DHCP_NOMSG)) {
+ ifctx->sentmsg = 0;
+ bootpc_compose_query(ifctx, td);
+ }
+
+ /* Send BOOTP request (or re-send). */
+
+ if (ifctx->sentmsg == 0) {
+ switch(ifctx->dhcpquerytype) {
+ case DHCP_DISCOVER:
+ s = "DHCP Discover";
+ break;
+ case DHCP_REQUEST:
+ s = "DHCP Request";
+ break;
+ case DHCP_NOMSG:
+ default:
+ s = "BOOTP Query";
+ break;
+ }
+ printf("Sending %s packet from "
+ "interface %s (%*D)\n",
+ s,
+ ifctx->ireq.ifr_name,
+ ifctx->sdl->sdl_alen,
+ (unsigned char *) LLADDR(ifctx->sdl),
+ ":");
+ ifctx->sentmsg = 1;
+ }
+
+ aio.iov_base = (caddr_t) &ifctx->call;
+ aio.iov_len = sizeof(ifctx->call);
+
+ auio.uio_iov = &aio;
+ auio.uio_iovcnt = 1;
+ auio.uio_segflg = UIO_SYSSPACE;
+ auio.uio_rw = UIO_WRITE;
+ auio.uio_offset = 0;
+ auio.uio_resid = sizeof(ifctx->call);
+ auio.uio_td = td;
+
+ /* Set netmask to 0.0.0.0 */
+ clear_sinaddr(sin);
+ error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra,
+ td);
+ if (error != 0)
+ panic("%s: SIOCAIFADDR, error=%d", __func__,
+ error);
+
+ error = sosend(bootp_so, (struct sockaddr *) &dst,
+ &auio, NULL, NULL, 0, td);
+ if (error != 0)
+ printf("%s: sosend: %d state %08x\n", __func__,
+ error, (int )bootp_so->so_state);
+
+ /* Set netmask to 255.0.0.0 */
+ sin->sin_addr.s_addr = htonl(IN_CLASSA_NET);
+ error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra,
+ td);
+ if (error != 0)
+ panic("%s: SIOCAIFADDR, error=%d", __func__,
+ error);
+ }
+
+ if (outstanding == 0 &&
+ (rtimo == 0 || time_second >= rtimo)) {
+ error = 0;
+ goto out;
+ }
+
+ /* Determine new timeout. */
+ if (timo < MAX_RESEND_DELAY)
+ timo++;
+ else {
+ printf("DHCP/BOOTP timeout for server ");
+ print_sin_addr(&dst);
+ printf("\n");
+ }
+
+ /*
+ * Wait for up to timo seconds for a reply.
+ * The socket receive timeout was set to 1 second.
+ */
+ atimo = timo + time_second;
+ while (time_second < atimo) {
+ aio.iov_base = (caddr_t) &gctx->reply;
+ aio.iov_len = sizeof(gctx->reply);
+
+ auio.uio_iov = &aio;
+ auio.uio_iovcnt = 1;
+ auio.uio_segflg = UIO_SYSSPACE;
+ auio.uio_rw = UIO_READ;
+ auio.uio_offset = 0;
+ auio.uio_resid = sizeof(gctx->reply);
+ auio.uio_td = td;
+
+ rcvflg = 0;
+ error = soreceive(bootp_so, NULL, &auio,
+ NULL, NULL, &rcvflg);
+ gctx->secs = time_second - gctx->starttime;
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
+ if (bootpc_ifctx_isresolved(ifctx) != 0 ||
+ bootpc_ifctx_isfailed(ifctx) != 0)
+ continue;
+
+ ifctx->call.secs = htons(gctx->secs);
+ }
+ if (error == EWOULDBLOCK)
+ continue;
+ if (error != 0)
+ goto out;
+ len = sizeof(gctx->reply) - auio.uio_resid;
+
+ /* Do we have the required number of bytes ? */
+ if (len < BOOTP_MIN_LEN)
+ continue;
+ gctx->replylen = len;
+
+ /* Is it a reply? */
+ if (gctx->reply.op != BOOTP_REPLY)
+ continue;
+
+ /* Is this an answer to our query */
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
+ if (gctx->reply.xid != ifctx->call.xid)
+ continue;
+
+ /* Same HW address size ? */
+ if (gctx->reply.hlen != ifctx->call.hlen)
+ continue;
+
+ /* Correct HW address ? */
+ if (bcmp(gctx->reply.chaddr,
+ ifctx->call.chaddr,
+ ifctx->call.hlen) != 0)
+ continue;
+
+ break;
+ }
+
+ if (ifctx != NULL) {
+ s = bootpc_tag(&gctx->tmptag,
+ &gctx->reply,
+ gctx->replylen,
+ TAG_DHCP_MSGTYPE);
+ if (s != NULL) {
+ switch (*s) {
+ case DHCP_OFFER:
+ s = "DHCP Offer";
+ break;
+ case DHCP_ACK:
+ s = "DHCP Ack";
+ break;
+ default:
+ s = "DHCP (unexpected)";
+ break;
+ }
+ } else
+ s = "BOOTP Reply";
+
+ printf("Received %s packet"
+ " on %s from ",
+ s,
+ ifctx->ireq.ifr_name);
+ print_in_addr(gctx->reply.siaddr);
+ if (gctx->reply.giaddr.s_addr !=
+ htonl(INADDR_ANY)) {
+ printf(" via ");
+ print_in_addr(gctx->reply.giaddr);
+ }
+ if (bootpc_received(gctx, ifctx) != 0) {
+ printf(" (accepted)");
+ if (ifctx->outstanding) {
+ ifctx->outstanding = 0;
+ outstanding--;
+ }
+ /* Network settle delay */
+ if (outstanding == 0)
+ atimo = time_second +
+ BOOTP_SETTLE_DELAY;
+ } else
+ printf(" (ignored)");
+ if (ifctx->gotrootpath ||
+ gctx->any_root_overrides) {
+ gotrootpath = 1;
+ rtimo = time_second +
+ BOOTP_SETTLE_DELAY;
+ if (ifctx->gotrootpath)
+ printf(" (got root path)");
+ }
+ printf("\n");
+ }
+ } /* while secs */
+#ifdef BOOTP_TIMEOUT
+ if (gctx->secs > BOOTP_TIMEOUT && BOOTP_TIMEOUT > 0)
+ break;
+#endif
+ /* Force a retry if halfway in DHCP negotiation */
+ retry = 0;
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (ifctx->state == IF_DHCP_OFFERED) {
+ if (ifctx->dhcpquerytype == DHCP_DISCOVER)
+ retry = 1;
+ else
+ ifctx->state = IF_DHCP_UNRESOLVED;
+ }
+
+ if (retry != 0)
+ continue;
+
+ if (gotrootpath != 0) {
+ gctx->gotrootpath = gotrootpath;
+ if (rtimo != 0 && time_second >= rtimo)
+ break;
+ }
+ } /* forever send/receive */
+
+ /*
+ * XXX: These are errors of varying seriousness being silently
+ * ignored
+ */
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (bootpc_ifctx_isresolved(ifctx) == 0) {
+ printf("%s timeout for interface %s\n",
+ ifctx->dhcpquerytype != DHCP_NOMSG ?
+ "DHCP" : "BOOTP",
+ ifctx->ireq.ifr_name);
+ }
+
+ if (gctx->gotrootpath != 0) {
+#if 0
+ printf("Got a root path, ignoring remaining timeout\n");
+#endif
+ error = 0;
+ goto out;
+ }
+#ifndef BOOTP_NFSROOT
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (bootpc_ifctx_isresolved(ifctx) != 0) {
+ error = 0;
+ goto out;
+ }
+#endif
+ error = ETIMEDOUT;
+
+out:
+ return (error);
+}
+
+static void
+bootpc_fakeup_interface(struct bootpc_ifcontext *ifctx, struct thread *td)
+{
+ struct ifreq *ifr;
+ struct in_aliasreq *ifra;
+ struct sockaddr_in *sin;
+ int error;
+
+ ifr = &ifctx->ireq;
+ ifra = &ifctx->iareq;
+
+ /*
+ * Bring up the interface.
+ *
+ * Get the old interface flags and or IFF_UP into them; if
+ * IFF_UP set blindly, interface selection can be clobbered.
+ */
+ error = ifioctl(bootp_so, SIOCGIFFLAGS, (caddr_t)ifr, td);
+ if (error != 0)
+ panic("%s: SIOCGIFFLAGS, error=%d", __func__, error);
+ ifr->ifr_flags |= IFF_UP;
+ error = ifioctl(bootp_so, SIOCSIFFLAGS, (caddr_t)ifr, td);
+ if (error != 0)
+ panic("%s: SIOCSIFFLAGS, error=%d", __func__, error);
+
+ /*
+ * Do enough of ifconfig(8) so that the chosen interface
+ * can talk to the servers. Set address to 0.0.0.0/8 and
+ * broadcast address to local broadcast.
+ */
+ sin = (struct sockaddr_in *)&ifra->ifra_addr;
+ clear_sinaddr(sin);
+ sin = (struct sockaddr_in *)&ifra->ifra_mask;
+ clear_sinaddr(sin);
+ sin->sin_addr.s_addr = htonl(IN_CLASSA_NET);
+ sin = (struct sockaddr_in *)&ifra->ifra_broadaddr;
+ clear_sinaddr(sin);
+ sin->sin_addr.s_addr = htonl(INADDR_BROADCAST);
+ error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra, td);
+ if (error != 0)
+ panic("%s: SIOCAIFADDR, error=%d", __func__, error);
+}
+
+static void
+bootpc_shutdown_interface(struct bootpc_ifcontext *ifctx, struct thread *td)
+{
+ struct ifreq *ifr;
+ struct sockaddr_in *sin;
+ int error;
+
+ ifr = &ifctx->ireq;
+
+ printf("Shutdown interface %s\n", ifctx->ireq.ifr_name);
+ error = ifioctl(bootp_so, SIOCGIFFLAGS, (caddr_t)ifr, td);
+ if (error != 0)
+ panic("%s: SIOCGIFFLAGS, error=%d", __func__, error);
+ ifr->ifr_flags &= ~IFF_UP;
+ error = ifioctl(bootp_so, SIOCSIFFLAGS, (caddr_t)ifr, td);
+ if (error != 0)
+ panic("%s: SIOCSIFFLAGS, error=%d", __func__, error);
+
+ sin = (struct sockaddr_in *) &ifr->ifr_addr;
+ clear_sinaddr(sin);
+ error = ifioctl(bootp_so, SIOCDIFADDR, (caddr_t) ifr, td);
+ if (error != 0)
+ panic("%s: SIOCDIFADDR, error=%d", __func__, error);
+}
+
+static void
+bootpc_adjust_interface(struct bootpc_ifcontext *ifctx,
+ struct bootpc_globalcontext *gctx, struct thread *td)
+{
+ int error;
+ struct sockaddr_in *sin;
+ struct ifreq *ifr;
+ struct in_aliasreq *ifra;
+ struct sockaddr_in *myaddr;
+ struct sockaddr_in *netmask;
+
+ ifr = &ifctx->ireq;
+ ifra = &ifctx->iareq;
+ myaddr = &ifctx->myaddr;
+ netmask = &ifctx->netmask;
+
+ if (bootpc_ifctx_isresolved(ifctx) == 0) {
+ /* Shutdown interfaces where BOOTP failed */
+ bootpc_shutdown_interface(ifctx, td);
+ return;
+ }
+
+ printf("Adjusted interface %s", ifctx->ireq.ifr_name);
+
+ /* Do BOOTP interface options */
+ if (ifctx->mtu != 0) {
+ printf(" (MTU=%d%s)", ifctx->mtu,
+ (ifctx->mtu > 1514) ? "/JUMBO" : "");
+ ifr->ifr_mtu = ifctx->mtu;
+ error = ifioctl(bootp_so, SIOCSIFMTU, (caddr_t) ifr, td);
+ if (error != 0)
+ panic("%s: SIOCSIFMTU, error=%d", __func__, error);
+ }
+ printf("\n");
+
+ /*
+ * Do enough of ifconfig(8) so that the chosen interface
+ * can talk to the servers. (just set the address)
+ */
+ sin = (struct sockaddr_in *) &ifr->ifr_addr;
+ clear_sinaddr(sin);
+ error = ifioctl(bootp_so, SIOCDIFADDR, (caddr_t) ifr, td);
+ if (error != 0)
+ panic("%s: SIOCDIFADDR, error=%d", __func__, error);
+
+ bcopy(myaddr, &ifra->ifra_addr, sizeof(*myaddr));
+ bcopy(netmask, &ifra->ifra_mask, sizeof(*netmask));
+ clear_sinaddr(&ifra->ifra_broadaddr);
+ ifra->ifra_broadaddr.sin_addr.s_addr = myaddr->sin_addr.s_addr |
+ ~netmask->sin_addr.s_addr;
+
+ error = ifioctl(bootp_so, SIOCAIFADDR, (caddr_t)ifra, td);
+ if (error != 0)
+ panic("%s: SIOCAIFADDR, error=%d", __func__, error);
+}
+
+static void
+bootpc_add_default_route(struct bootpc_ifcontext *ifctx)
+{
+ int error;
+ struct sockaddr_in defdst;
+ struct sockaddr_in defmask;
+
+ if (ifctx->gw.sin_addr.s_addr == htonl(INADDR_ANY))
+ return;
+
+ clear_sinaddr(&defdst);
+ clear_sinaddr(&defmask);
+
+ error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&defdst,
+ (struct sockaddr *) &ifctx->gw, (struct sockaddr *)&defmask,
+ (RTF_UP | RTF_GATEWAY | RTF_STATIC), NULL, RT_DEFAULT_FIB);
+ if (error != 0) {
+ printf("%s: RTM_ADD, error=%d\n", __func__, error);
+ }
+}
+
+static void
+bootpc_remove_default_route(struct bootpc_ifcontext *ifctx)
+{
+ int error;
+ struct sockaddr_in defdst;
+ struct sockaddr_in defmask;
+
+ if (ifctx->gw.sin_addr.s_addr == htonl(INADDR_ANY))
+ return;
+
+ clear_sinaddr(&defdst);
+ clear_sinaddr(&defmask);
+
+ error = rtrequest_fib(RTM_DELETE, (struct sockaddr *)&defdst,
+ (struct sockaddr *) &ifctx->gw, (struct sockaddr *)&defmask,
+ (RTF_UP | RTF_GATEWAY | RTF_STATIC), NULL, RT_DEFAULT_FIB);
+ if (error != 0) {
+ printf("%s: RTM_DELETE, error=%d\n", __func__, error);
+ }
+}
+
+static int
+setfs(struct sockaddr_in *addr, char *path, char *p,
+ const struct in_addr *siaddr)
+{
+
+ if (getip(&p, &addr->sin_addr) == 0) {
+ if (siaddr != NULL && *p == '/')
+ bcopy(siaddr, &addr->sin_addr, sizeof(struct in_addr));
+ else
+ return 0;
+ } else {
+ if (*p != ':')
+ return 0;
+ p++;
+ }
+
+ addr->sin_len = sizeof(struct sockaddr_in);
+ addr->sin_family = AF_INET;
+
+ strlcpy(path, p, MNAMELEN);
+ return 1;
+}
+
+static int
+getip(char **ptr, struct in_addr *addr)
+{
+ char *p;
+ unsigned int ip;
+ int val;
+
+ p = *ptr;
+ ip = 0;
+ if (((val = getdec(&p)) < 0) || (val > 255))
+ return 0;
+ ip = val << 24;
+ if (*p != '.')
+ return 0;
+ p++;
+ if (((val = getdec(&p)) < 0) || (val > 255))
+ return 0;
+ ip |= (val << 16);
+ if (*p != '.')
+ return 0;
+ p++;
+ if (((val = getdec(&p)) < 0) || (val > 255))
+ return 0;
+ ip |= (val << 8);
+ if (*p != '.')
+ return 0;
+ p++;
+ if (((val = getdec(&p)) < 0) || (val > 255))
+ return 0;
+ ip |= val;
+
+ addr->s_addr = htonl(ip);
+ *ptr = p;
+ return 1;
+}
+
+static int
+getdec(char **ptr)
+{
+ char *p;
+ int ret;
+
+ p = *ptr;
+ ret = 0;
+ if ((*p < '0') || (*p > '9'))
+ return -1;
+ while ((*p >= '0') && (*p <= '9')) {
+ ret = ret * 10 + (*p - '0');
+ p++;
+ }
+ *ptr = p;
+ return ret;
+}
+
+static void
+mountopts(struct nfs_args *args, char *p)
+{
+ args->version = NFS_ARGSVERSION;
+ args->rsize = BOOTP_BLOCKSIZE;
+ args->wsize = BOOTP_BLOCKSIZE;
+ args->flags = NFSMNT_RSIZE | NFSMNT_WSIZE | NFSMNT_RESVPORT;
+ args->sotype = SOCK_DGRAM;
+ if (p != NULL)
+ nfs_parse_options(p, args);
+}
+
+static int
+xdr_opaque_decode(struct mbuf **mptr, u_char *buf, int len)
+{
+ struct mbuf *m;
+ int alignedlen;
+
+ m = *mptr;
+ alignedlen = ( len + 3 ) & ~3;
+
+ if (m->m_len < alignedlen) {
+ m = m_pullup(m, alignedlen);
+ if (m == NULL) {
+ *mptr = NULL;
+ return EBADRPC;
+ }
+ }
+ bcopy(mtod(m, u_char *), buf, len);
+ m_adj(m, alignedlen);
+ *mptr = m;
+ return 0;
+}
+
+static int
+xdr_int_decode(struct mbuf **mptr, int *iptr)
+{
+ u_int32_t i;
+
+ if (xdr_opaque_decode(mptr, (u_char *) &i, sizeof(u_int32_t)) != 0)
+ return EBADRPC;
+ *iptr = fxdr_unsigned(u_int32_t, i);
+ return 0;
+}
+
+static void
+print_sin_addr(struct sockaddr_in *sin)
+{
+
+ print_in_addr(sin->sin_addr);
+}
+
+static void
+print_in_addr(struct in_addr addr)
+{
+ unsigned int ip;
+
+ ip = ntohl(addr.s_addr);
+ printf("%d.%d.%d.%d",
+ ip >> 24, (ip >> 16) & 255, (ip >> 8) & 255, ip & 255);
+}
+
+static void
+bootpc_compose_query(struct bootpc_ifcontext *ifctx, struct thread *td)
+{
+ unsigned char *vendp;
+ unsigned char vendor_client[64];
+ uint32_t leasetime;
+ uint8_t vendor_client_len;
+
+ ifctx->gotrootpath = 0;
+
+ bzero((caddr_t) &ifctx->call, sizeof(ifctx->call));
+
+ /* bootpc part */
+ ifctx->call.op = BOOTP_REQUEST; /* BOOTREQUEST */
+ ifctx->call.htype = 1; /* 10mb ethernet */
+ ifctx->call.hlen = ifctx->sdl->sdl_alen;/* Hardware address length */
+ ifctx->call.hops = 0;
+ if (bootpc_ifctx_isunresolved(ifctx) != 0)
+ ifctx->xid++;
+ ifctx->call.xid = txdr_unsigned(ifctx->xid);
+ bcopy(LLADDR(ifctx->sdl), &ifctx->call.chaddr, ifctx->sdl->sdl_alen);
+
+ vendp = ifctx->call.vend;
+ *vendp++ = 99; /* RFC1048 cookie */
+ *vendp++ = 130;
+ *vendp++ = 83;
+ *vendp++ = 99;
+ *vendp++ = TAG_MAXMSGSIZE;
+ *vendp++ = 2;
+ *vendp++ = (sizeof(struct bootp_packet) >> 8) & 255;
+ *vendp++ = sizeof(struct bootp_packet) & 255;
+
+ snprintf(vendor_client, sizeof(vendor_client), "%s:%s:%s",
+ ostype, MACHINE, osrelease);
+ vendor_client_len = strlen(vendor_client);
+ *vendp++ = TAG_VENDOR_INDENTIFIER;
+ *vendp++ = vendor_client_len;
+ memcpy(vendp, vendor_client, vendor_client_len);
+ vendp += vendor_client_len;
+ ifctx->dhcpquerytype = DHCP_NOMSG;
+ switch (ifctx->state) {
+ case IF_DHCP_UNRESOLVED:
+ *vendp++ = TAG_DHCP_MSGTYPE;
+ *vendp++ = 1;
+ *vendp++ = DHCP_DISCOVER;
+ ifctx->dhcpquerytype = DHCP_DISCOVER;
+ ifctx->gotdhcpserver = 0;
+ break;
+ case IF_DHCP_OFFERED:
+ *vendp++ = TAG_DHCP_MSGTYPE;
+ *vendp++ = 1;
+ *vendp++ = DHCP_REQUEST;
+ ifctx->dhcpquerytype = DHCP_REQUEST;
+ *vendp++ = TAG_DHCP_REQ_ADDR;
+ *vendp++ = 4;
+ memcpy(vendp, &ifctx->reply.yiaddr, 4);
+ vendp += 4;
+ if (ifctx->gotdhcpserver != 0) {
+ *vendp++ = TAG_DHCP_SERVERID;
+ *vendp++ = 4;
+ memcpy(vendp, &ifctx->dhcpserver, 4);
+ vendp += 4;
+ }
+ *vendp++ = TAG_DHCP_LEASETIME;
+ *vendp++ = 4;
+ leasetime = htonl(300);
+ memcpy(vendp, &leasetime, 4);
+ vendp += 4;
+ break;
+ default:
+ break;
+ }
+ *vendp = TAG_END;
+
+ ifctx->call.secs = 0;
+ ifctx->call.flags = htons(0x8000); /* We need a broadcast answer */
+}
+
+static int
+bootpc_hascookie(struct bootp_packet *bp)
+{
+
+ return (bp->vend[0] == 99 && bp->vend[1] == 130 &&
+ bp->vend[2] == 83 && bp->vend[3] == 99);
+}
+
+static void
+bootpc_tag_helper(struct bootpc_tagcontext *tctx,
+ unsigned char *start, int len, int tag)
+{
+ unsigned char *j;
+ unsigned char *ej;
+ unsigned char code;
+
+ if (tctx->badtag != 0 || tctx->badopt != 0)
+ return;
+
+ j = start;
+ ej = j + len;
+
+ while (j < ej) {
+ code = *j++;
+ if (code == TAG_PAD)
+ continue;
+ if (code == TAG_END)
+ return;
+ if (j >= ej || j + *j + 1 > ej) {
+ tctx->badopt = 1;
+ return;
+ }
+ len = *j++;
+ if (code == tag) {
+ if (tctx->taglen + len > TAG_MAXLEN) {
+ tctx->badtag = 1;
+ return;
+ }
+ tctx->foundopt = 1;
+ if (len > 0)
+ memcpy(tctx->buf + tctx->taglen,
+ j, len);
+ tctx->taglen += len;
+ }
+ if (code == TAG_OVERLOAD)
+ tctx->overload = *j;
+
+ j += len;
+ }
+}
+
+static unsigned char *
+bootpc_tag(struct bootpc_tagcontext *tctx,
+ struct bootp_packet *bp, int len, int tag)
+{
+ tctx->overload = 0;
+ tctx->badopt = 0;
+ tctx->badtag = 0;
+ tctx->foundopt = 0;
+ tctx->taglen = 0;
+
+ if (bootpc_hascookie(bp) == 0)
+ return NULL;
+
+ bootpc_tag_helper(tctx, &bp->vend[4],
+ (unsigned char *) bp + len - &bp->vend[4], tag);
+
+ if ((tctx->overload & OVERLOAD_FILE) != 0)
+ bootpc_tag_helper(tctx,
+ (unsigned char *) bp->file,
+ sizeof(bp->file),
+ tag);
+ if ((tctx->overload & OVERLOAD_SNAME) != 0)
+ bootpc_tag_helper(tctx,
+ (unsigned char *) bp->sname,
+ sizeof(bp->sname),
+ tag);
+
+ if (tctx->badopt != 0 || tctx->badtag != 0 || tctx->foundopt == 0)
+ return NULL;
+ tctx->buf[tctx->taglen] = '\0';
+ return tctx->buf;
+}
+
+static void
+bootpc_decode_reply(struct nfsv3_diskless *nd, struct bootpc_ifcontext *ifctx,
+ struct bootpc_globalcontext *gctx)
+{
+ char *p, *s;
+ unsigned int ip;
+
+ ifctx->gotgw = 0;
+ ifctx->gotnetmask = 0;
+
+ clear_sinaddr(&ifctx->myaddr);
+ clear_sinaddr(&ifctx->netmask);
+ clear_sinaddr(&ifctx->gw);
+
+ ifctx->myaddr.sin_addr = ifctx->reply.yiaddr;
+
+ ip = ntohl(ifctx->myaddr.sin_addr.s_addr);
+
+ printf("%s at ", ifctx->ireq.ifr_name);
+ print_sin_addr(&ifctx->myaddr);
+ printf(" server ");
+ print_in_addr(ifctx->reply.siaddr);
+
+ ifctx->gw.sin_addr = ifctx->reply.giaddr;
+ if (ifctx->reply.giaddr.s_addr != htonl(INADDR_ANY)) {
+ printf(" via gateway ");
+ print_in_addr(ifctx->reply.giaddr);
+ }
+
+ /* This call used for the side effect (overload flag) */
+ (void) bootpc_tag(&gctx->tmptag,
+ &ifctx->reply, ifctx->replylen, TAG_END);
+
+ if ((gctx->tmptag.overload & OVERLOAD_SNAME) == 0)
+ if (ifctx->reply.sname[0] != '\0')
+ printf(" server name %s", ifctx->reply.sname);
+ if ((gctx->tmptag.overload & OVERLOAD_FILE) == 0)
+ if (ifctx->reply.file[0] != '\0')
+ printf(" boot file %s", ifctx->reply.file);
+
+ printf("\n");
+
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_SUBNETMASK);
+ if (p != NULL) {
+ if (gctx->tag.taglen != 4)
+ panic("bootpc: subnet mask len is %d",
+ gctx->tag.taglen);
+ bcopy(p, &ifctx->netmask.sin_addr, 4);
+ ifctx->gotnetmask = 1;
+ printf("subnet mask ");
+ print_sin_addr(&ifctx->netmask);
+ printf(" ");
+ }
+
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_ROUTERS);
+ if (p != NULL) {
+ /* Routers */
+ if (gctx->tag.taglen % 4)
+ panic("bootpc: Router Len is %d", gctx->tag.taglen);
+ if (gctx->tag.taglen > 0) {
+ bcopy(p, &ifctx->gw.sin_addr, 4);
+ printf("router ");
+ print_sin_addr(&ifctx->gw);
+ printf(" ");
+ ifctx->gotgw = 1;
+ gctx->gotgw = 1;
+ }
+ }
+
+ /*
+ * Choose a root filesystem. If a value is forced in the environment
+ * and it contains "nfs:", use it unconditionally. Otherwise, if the
+ * kernel is compiled with the ROOTDEVNAME option, then use it if:
+ * - The server doesn't provide a pathname.
+ * - The boothowto flags include RB_DFLTROOT (user said to override
+ * the server value).
+ */
+ p = NULL;
+ if ((s = kern_getenv("vfs.root.mountfrom")) != NULL) {
+ if ((p = strstr(s, "nfs:")) != NULL)
+ p = strdup(p + 4, M_TEMP);
+ freeenv(s);
+ }
+ if (p == NULL) {
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_ROOT);
+ if (p != NULL)
+ ifctx->gotrootpath = 1;
+ }
+#ifdef ROOTDEVNAME
+ if ((p == NULL || (boothowto & RB_DFLTROOT) != 0) &&
+ (p = strstr(ROOTDEVNAME, "nfs:")) != NULL) {
+ p += 4;
+ }
+#endif
+ if (p != NULL) {
+ if (gctx->setrootfs != NULL) {
+ printf("rootfs %s (ignored) ", p);
+ } else if (setfs(&nd->root_saddr,
+ nd->root_hostnam, p, &ifctx->reply.siaddr)) {
+ if (*p == '/') {
+ printf("root_server ");
+ print_sin_addr(&nd->root_saddr);
+ printf(" ");
+ }
+ printf("rootfs %s ", p);
+ gctx->gotrootpath = 1;
+ gctx->setrootfs = ifctx;
+
+ p = bootpc_tag(&gctx->tag, &ifctx->reply,
+ ifctx->replylen,
+ TAG_ROOTOPTS);
+ if (p != NULL) {
+ mountopts(&nd->root_args, p);
+ printf("rootopts %s ", p);
+ }
+ } else
+ panic("Failed to set rootfs to %s", p);
+ }
+
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_HOSTNAME);
+ if (p != NULL) {
+ if (gctx->tag.taglen >= MAXHOSTNAMELEN)
+ panic("bootpc: hostname >= %d bytes",
+ MAXHOSTNAMELEN);
+ if (gctx->sethostname != NULL) {
+ printf("hostname %s (ignored) ", p);
+ } else {
+ strcpy(nd->my_hostnam, p);
+ mtx_lock(&prison0.pr_mtx);
+ strcpy(prison0.pr_hostname, p);
+ mtx_unlock(&prison0.pr_mtx);
+ printf("hostname %s ", p);
+ gctx->sethostname = ifctx;
+ }
+ }
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_COOKIE);
+ if (p != NULL) { /* store in a sysctl variable */
+ int i, l = sizeof(bootp_cookie) - 1;
+ for (i = 0; i < l && p[i] != '\0'; i++)
+ bootp_cookie[i] = p[i];
+ p[i] = '\0';
+ }
+
+ p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
+ TAG_INTF_MTU);
+ if (p != NULL) {
+ ifctx->mtu = be16dec(p);
+ }
+
+ printf("\n");
+
+ if (ifctx->gotnetmask == 0) {
+ if (IN_CLASSA(ntohl(ifctx->myaddr.sin_addr.s_addr)))
+ ifctx->netmask.sin_addr.s_addr = htonl(IN_CLASSA_NET);
+ else if (IN_CLASSB(ntohl(ifctx->myaddr.sin_addr.s_addr)))
+ ifctx->netmask.sin_addr.s_addr = htonl(IN_CLASSB_NET);
+ else
+ ifctx->netmask.sin_addr.s_addr = htonl(IN_CLASSC_NET);
+ }
+}
+
+void
+bootpc_init(void)
+{
+ struct bootpc_ifcontext *ifctx; /* Interface BOOTP contexts */
+ struct bootpc_globalcontext *gctx; /* Global BOOTP context */
+ struct ifnet *ifp;
+ struct sockaddr_dl *sdl;
+ struct ifaddr *ifa;
+ int error;
+#ifndef BOOTP_WIRED_TO
+ int ifcnt;
+#endif
+ struct nfsv3_diskless *nd;
+ struct thread *td;
+ int timeout;
+ int delay;
+
+ timeout = BOOTP_IFACE_WAIT_TIMEOUT * hz;
+ delay = hz / 10;
+
+ nd = &nfsv3_diskless;
+ td = curthread;
+
+ /*
+ * If already filled in, don't touch it here
+ */
+ if (nfs_diskless_valid != 0)
+ return;
+
+ gctx = malloc(sizeof(*gctx), M_TEMP, M_WAITOK | M_ZERO);
+ STAILQ_INIT(&gctx->interfaces);
+ gctx->xid = ~0xFFFF;
+ gctx->starttime = time_second;
+
+ /*
+ * If ROOTDEVNAME is defined or vfs.root.mountfrom is set then we have
+ * root-path overrides that can potentially let us boot even if we don't
+ * get a root path from the server, so we can treat that as a non-error.
+ */
+#ifdef ROOTDEVNAME
+ gctx->any_root_overrides = 1;
+#else
+ gctx->any_root_overrides = testenv("vfs.root.mountfrom");
+#endif
+
+ /*
+ * Find a network interface.
+ */
+ CURVNET_SET(TD_TO_VNET(td));
+#ifdef BOOTP_WIRED_TO
+ printf("%s: wired to interface '%s'\n", __func__,
+ __XSTRING(BOOTP_WIRED_TO));
+ allocifctx(gctx);
+#else
+ /*
+ * Preallocate interface context storage, if another interface
+ * attaches and wins the race, it won't be eligible for bootp.
+ */
+ ifcnt = 0;
+ IFNET_RLOCK();
+ CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
+ if ((ifp->if_flags &
+ (IFF_LOOPBACK | IFF_POINTOPOINT | IFF_BROADCAST)) !=
+ IFF_BROADCAST)
+ continue;
+ switch (ifp->if_alloctype) {
+ case IFT_ETHER:
+ break;
+ default:
+ continue;
+ }
+ ifcnt++;
+ }
+ IFNET_RUNLOCK();
+ if (ifcnt == 0)
+ panic("%s: no eligible interfaces", __func__);
+ for (; ifcnt > 0; ifcnt--)
+ allocifctx(gctx);
+#endif
+
+retry:
+ ifctx = STAILQ_FIRST(&gctx->interfaces);
+ IFNET_RLOCK();
+ CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
+ if (ifctx == NULL)
+ break;
+#ifdef BOOTP_WIRED_TO
+ if (strcmp(ifp->if_xname, __XSTRING(BOOTP_WIRED_TO)) != 0)
+ continue;
+#else
+ if ((ifp->if_flags &
+ (IFF_LOOPBACK | IFF_POINTOPOINT | IFF_BROADCAST)) !=
+ IFF_BROADCAST)
+ continue;
+ switch (ifp->if_alloctype) {
+ case IFT_ETHER:
+ break;
+ default:
+ continue;
+ }
+#endif
+ strlcpy(ifctx->ireq.ifr_name, ifp->if_xname,
+ sizeof(ifctx->ireq.ifr_name));
+ ifctx->ifp = ifp;
+
+ /* Get HW address */
+ sdl = NULL;
+ CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
+ if (ifa->ifa_addr->sa_family == AF_LINK) {
+ sdl = (struct sockaddr_dl *)ifa->ifa_addr;
+ if (sdl->sdl_type == IFT_ETHER)
+ break;
+ }
+ if (sdl == NULL)
+ panic("bootpc: Unable to find HW address for %s",
+ ifctx->ireq.ifr_name);
+ ifctx->sdl = sdl;
+
+ ifctx = STAILQ_NEXT(ifctx, next);
+ }
+ IFNET_RUNLOCK();
+ CURVNET_RESTORE();
+
+ if (STAILQ_EMPTY(&gctx->interfaces) ||
+ STAILQ_FIRST(&gctx->interfaces)->ifp == NULL) {
+ if (timeout > 0) {
+ pause("bootpc", delay);
+ timeout -= delay;
+ goto retry;
+ }
+#ifdef BOOTP_WIRED_TO
+ panic("%s: Could not find interface specified "
+ "by BOOTP_WIRED_TO: "
+ __XSTRING(BOOTP_WIRED_TO), __func__);
+#else
+ panic("%s: no suitable interface", __func__);
+#endif
+ }
+
+ error = socreate(AF_INET, &bootp_so, SOCK_DGRAM, 0, td->td_ucred, td);
+ if (error != 0)
+ panic("%s: socreate, error=%d", __func__, error);
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ bootpc_fakeup_interface(ifctx, td);
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ bootpc_compose_query(ifctx, td);
+
+ error = bootpc_call(gctx, td);
+ if (error != 0) {
+ printf("BOOTP call failed\n");
+ }
+
+ mountopts(&nd->root_args, NULL);
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (bootpc_ifctx_isresolved(ifctx) != 0)
+ bootpc_decode_reply(nd, ifctx, gctx);
+
+#ifdef BOOTP_NFSROOT
+ if (gctx->gotrootpath == 0 && gctx->any_root_overrides == 0)
+ panic("bootpc: No root path offered");
+#endif
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ bootpc_adjust_interface(ifctx, gctx, td);
+
+ soclose(bootp_so);
+
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (ifctx->gotrootpath != 0)
+ break;
+ if (ifctx == NULL) {
+ STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
+ if (bootpc_ifctx_isresolved(ifctx) != 0)
+ break;
+ }
+ if (ifctx == NULL)
+ goto out;
+
+ if (gctx->gotrootpath != 0) {
+
+ kern_setenv("boot.netif.name", ifctx->ifp->if_xname);
+
+ bootpc_add_default_route(ifctx);
+ error = md_mount(&nd->root_saddr, nd->root_hostnam,
+ nd->root_fh, &nd->root_fhsize,
+ &nd->root_args, td);
+ bootpc_remove_default_route(ifctx);
+ if (error != 0) {
+ if (gctx->any_root_overrides == 0)
+ panic("nfs_boot: mount root, error=%d", error);
+ else
+ goto out;
+ }
+ rootdevnames[0] = "nfs:";
+ nfs_diskless_valid = 3;
+ }
+
+ strcpy(nd->myif.ifra_name, ifctx->ireq.ifr_name);
+ bcopy(&ifctx->myaddr, &nd->myif.ifra_addr, sizeof(ifctx->myaddr));
+ bcopy(&ifctx->myaddr, &nd->myif.ifra_broadaddr, sizeof(ifctx->myaddr));
+ ((struct sockaddr_in *) &nd->myif.ifra_broadaddr)->sin_addr.s_addr =
+ ifctx->myaddr.sin_addr.s_addr |
+ ~ ifctx->netmask.sin_addr.s_addr;
+ bcopy(&ifctx->netmask, &nd->myif.ifra_mask, sizeof(ifctx->netmask));
+ bcopy(&ifctx->gw, &nd->mygateway, sizeof(ifctx->gw));
+
+out:
+ while((ifctx = STAILQ_FIRST(&gctx->interfaces)) != NULL) {
+ STAILQ_REMOVE_HEAD(&gctx->interfaces, next);
+ free(ifctx, M_TEMP);
+ }
+ free(gctx, M_TEMP);
+}
+
+/*
+ * RPC: mountd/mount
+ * Given a server pathname, get an NFS file handle.
+ * Also, sets sin->sin_port to the NFS service port.
+ */
+static int
+md_mount(struct sockaddr_in *mdsin, char *path, u_char *fhp, int *fhsizep,
+ struct nfs_args *args, struct thread *td)
+{
+ struct mbuf *m;
+ int error;
+ int authunixok;
+ int authcount;
+ int authver;
+
+#define RPCPROG_MNT 100005
+#define RPCMNT_VER1 1
+#define RPCMNT_VER3 3
+#define RPCMNT_MOUNT 1
+#define AUTH_SYS 1 /* unix style (uid, gids) */
+#define AUTH_UNIX AUTH_SYS
+
+ /* XXX honor v2/v3 flags in args->flags? */
+#ifdef BOOTP_NFSV3
+ /* First try NFS v3 */
+ /* Get port number for MOUNTD. */
+ error = krpc_portmap(mdsin, RPCPROG_MNT, RPCMNT_VER3,
+ &mdsin->sin_port, td);
+ if (error == 0) {
+ m = xdr_string_encode(path, strlen(path));
+
+ /* Do RPC to mountd. */
+ error = krpc_call(mdsin, RPCPROG_MNT, RPCMNT_VER3,
+ RPCMNT_MOUNT, &m, NULL, td);
+ }
+ if (error == 0) {
+ args->flags |= NFSMNT_NFSV3;
+ } else {
+#endif
+ /* Fallback to NFS v2 */
+
+ /* Get port number for MOUNTD. */
+ error = krpc_portmap(mdsin, RPCPROG_MNT, RPCMNT_VER1,
+ &mdsin->sin_port, td);
+ if (error != 0)
+ return error;
+
+ m = xdr_string_encode(path, strlen(path));
+
+ /* Do RPC to mountd. */
+ error = krpc_call(mdsin, RPCPROG_MNT, RPCMNT_VER1,
+ RPCMNT_MOUNT, &m, NULL, td);
+ if (error != 0)
+ return error; /* message already freed */
+
+#ifdef BOOTP_NFSV3
+ }
+#endif
+
+ if (xdr_int_decode(&m, &error) != 0 || error != 0)
+ goto bad;
+
+ if ((args->flags & NFSMNT_NFSV3) != 0) {
+ if (xdr_int_decode(&m, fhsizep) != 0 ||
+ *fhsizep > NFSX_V3FHMAX ||
+ *fhsizep <= 0)
+ goto bad;
+ } else
+ *fhsizep = NFSX_V2FH;
+
+ if (xdr_opaque_decode(&m, fhp, *fhsizep) != 0)
+ goto bad;
+
+ if (args->flags & NFSMNT_NFSV3) {
+ if (xdr_int_decode(&m, &authcount) != 0)
+ goto bad;
+ authunixok = 0;
+ if (authcount < 0 || authcount > 100)
+ goto bad;
+ while (authcount > 0) {
+ if (xdr_int_decode(&m, &authver) != 0)
+ goto bad;
+ if (authver == AUTH_UNIX)
+ authunixok = 1;
+ authcount--;
+ }
+ if (authunixok == 0)
+ goto bad;
+ }
+
+ /* Set port number for NFS use. */
+ error = krpc_portmap(mdsin, NFS_PROG,
+ (args->flags &
+ NFSMNT_NFSV3) ? NFS_VER3 : NFS_VER2,
+ &mdsin->sin_port, td);
+
+ goto out;
+
+bad:
+ error = EBADRPC;
+
+out:
+ m_freem(m);
+ return error;
+}
+
+SYSINIT(bootp_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, bootpc_init, NULL);
diff --git a/freebsd/sys/nfs/krpc.h b/freebsd/sys/nfs/krpc.h
new file mode 100644
index 0000000..44b84e0
--- /dev/null
+++ b/freebsd/sys/nfs/krpc.h
@@ -0,0 +1,31 @@
+/* $NetBSD: krpc.h,v 1.4 1995/12/19 23:07:11 cgd Exp $ */
+/* $FreeBSD$ */
+
+#include <sys/cdefs.h>
+
+struct mbuf;
+struct thread;
+struct sockaddr;
+struct sockaddr_in;
+
+int krpc_call(struct sockaddr_in *_sin,
+ u_int prog, u_int vers, u_int func,
+ struct mbuf **data, struct sockaddr **from, struct thread *td);
+
+int krpc_portmap(struct sockaddr_in *_sin,
+ u_int prog, u_int vers, u_int16_t *portp, struct thread *td);
+
+struct mbuf *xdr_string_encode(char *str, int len);
+
+/*
+ * RPC definitions for the portmapper
+ */
+#define PMAPPORT 111
+#define PMAPPROG 100000
+#define PMAPVERS 2
+#define PMAPPROC_NULL 0
+#define PMAPPROC_SET 1
+#define PMAPPROC_UNSET 2
+#define PMAPPROC_GETPORT 3
+#define PMAPPROC_DUMP 4
+#define PMAPPROC_CALLIT 5
diff --git a/freebsd/sys/nfs/krpc_subr.c b/freebsd/sys/nfs/krpc_subr.c
new file mode 100644
index 0000000..21e8e3a
--- /dev/null
+++ b/freebsd/sys/nfs/krpc_subr.c
@@ -0,0 +1,470 @@
+/* $NetBSD: krpc_subr.c,v 1.12.4.1 1996/06/07 00:52:26 cgd Exp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright (c) 1995 Gordon Ross, Adam Glass
+ * Copyright (c) 1992 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * partially based on:
+ * libnetboot/rpc.c
+ * @(#) Header: rpc.c,v 1.12 93/09/28 08:31:56 leres Exp (LBL)
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/jail.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/proc.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/uio.h>
+
+#include <net/if.h>
+#include <net/vnet.h>
+
+#include <netinet/in.h>
+
+#include <rpc/types.h>
+#include <rpc/auth.h>
+#include <rpc/rpc_msg.h>
+#include <nfs/krpc.h>
+#include <nfs/xdr_subs.h>
+
+/*
+ * Kernel support for Sun RPC
+ *
+ * Used currently for bootstrapping in nfs diskless configurations.
+ */
+
+/*
+ * Generic RPC headers
+ */
+
+struct auth_info {
+ u_int32_t authtype; /* auth type */
+ u_int32_t authlen; /* auth length */
+};
+
+struct auth_unix {
+ int32_t ua_time;
+ int32_t ua_hostname; /* null */
+ int32_t ua_uid;
+ int32_t ua_gid;
+ int32_t ua_gidlist; /* null */
+};
+
+struct krpc_call {
+ u_int32_t rp_xid; /* request transaction id */
+ int32_t rp_direction; /* call direction (0) */
+ u_int32_t rp_rpcvers; /* rpc version (2) */
+ u_int32_t rp_prog; /* program */
+ u_int32_t rp_vers; /* version */
+ u_int32_t rp_proc; /* procedure */
+ struct auth_info rpc_auth;
+ struct auth_unix rpc_unix;
+ struct auth_info rpc_verf;
+};
+
+struct krpc_reply {
+ u_int32_t rp_xid; /* request transaction id */
+ int32_t rp_direction; /* call direction (1) */
+ int32_t rp_astatus; /* accept status (0: accepted) */
+ union {
+ u_int32_t rpu_errno;
+ struct {
+ struct auth_info rok_auth;
+ u_int32_t rok_status;
+ } rpu_rok;
+ } rp_u;
+};
+#define rp_errno rp_u.rpu_errno
+#define rp_auth rp_u.rpu_rok.rok_auth
+#define rp_status rp_u.rpu_rok.rok_status
+
+#define MIN_REPLY_HDR 16 /* xid, dir, astat, errno */
+
+/*
+ * What is the longest we will wait before re-sending a request?
+ * Note this is also the frequency of "RPC timeout" messages.
+ * The re-send loop count sup linearly to this maximum, so the
+ * first complaint will happen after (1+2+3+4+5)=15 seconds.
+ */
+#define MAX_RESEND_DELAY 5 /* seconds */
+
+/*
+ * Call portmap to lookup a port number for a particular rpc program
+ * Returns non-zero error on failure.
+ */
+int
+krpc_portmap(struct sockaddr_in *sin, u_int prog, u_int vers, u_int16_t *portp,
+ struct thread *td)
+{
+ struct sdata {
+ u_int32_t prog; /* call program */
+ u_int32_t vers; /* call version */
+ u_int32_t proto; /* call protocol */
+ u_int32_t port; /* call port (unused) */
+ } *sdata;
+ struct rdata {
+ u_int16_t pad;
+ u_int16_t port;
+ } *rdata;
+ struct mbuf *m;
+ int error;
+
+ /* The portmapper port is fixed. */
+ if (prog == PMAPPROG) {
+ *portp = htons(PMAPPORT);
+ return 0;
+ }
+
+ m = m_get(M_WAITOK, MT_DATA);
+ sdata = mtod(m, struct sdata *);
+ m->m_len = sizeof(*sdata);
+
+ /* Do the RPC to get it. */
+ sdata->prog = txdr_unsigned(prog);
+ sdata->vers = txdr_unsigned(vers);
+ sdata->proto = txdr_unsigned(IPPROTO_UDP);
+ sdata->port = 0;
+
+ sin->sin_port = htons(PMAPPORT);
+ error = krpc_call(sin, PMAPPROG, PMAPVERS,
+ PMAPPROC_GETPORT, &m, NULL, td);
+ if (error)
+ return error;
+
+ if (m->m_len < sizeof(*rdata)) {
+ m = m_pullup(m, sizeof(*rdata));
+ if (m == NULL)
+ return ENOBUFS;
+ }
+ rdata = mtod(m, struct rdata *);
+ *portp = rdata->port;
+
+ m_freem(m);
+ return 0;
+}
+
+/*
+ * Do a remote procedure call (RPC) and wait for its reply.
+ * If from_p is non-null, then we are doing broadcast, and
+ * the address from whence the response came is saved there.
+ */
+int
+krpc_call(struct sockaddr_in *sa, u_int prog, u_int vers, u_int func,
+ struct mbuf **data, struct sockaddr **from_p, struct thread *td)
+{
+ struct socket *so;
+ struct sockaddr_in *sin, ssin;
+ struct sockaddr *from;
+ struct mbuf *m, *nam, *mhead;
+ struct krpc_call *call;
+ struct krpc_reply *reply;
+ struct sockopt sopt;
+ struct timeval tv;
+ struct uio auio;
+ int error, rcvflg, timo, secs, len;
+ static u_int32_t xid = ~0xFF;
+ u_int16_t tport;
+ u_int32_t saddr;
+
+ /*
+ * Validate address family.
+ * Sorry, this is INET specific...
+ */
+ if (sa->sin_family != AF_INET)
+ return (EAFNOSUPPORT);
+
+ /* Free at end if not null. */
+ nam = mhead = NULL;
+ from = NULL;
+
+ /*
+ * Create socket and set its receive timeout.
+ */
+ if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0, td->td_ucred, td)))
+ return error;
+
+ tv.tv_sec = 1;
+ tv.tv_usec = 0;
+ bzero(&sopt, sizeof sopt);
+ sopt.sopt_dir = SOPT_SET;
+ sopt.sopt_level = SOL_SOCKET;
+ sopt.sopt_name = SO_RCVTIMEO;
+ sopt.sopt_val = &tv;
+ sopt.sopt_valsize = sizeof tv;
+
+ if ((error = sosetopt(so, &sopt)) != 0)
+ goto out;
+
+ /*
+ * Enable broadcast if necessary.
+ */
+ if (from_p) {
+ int on = 1;
+ sopt.sopt_name = SO_BROADCAST;
+ sopt.sopt_val = &on;
+ sopt.sopt_valsize = sizeof on;
+ if ((error = sosetopt(so, &sopt)) != 0)
+ goto out;
+ }
+
+ /*
+ * Bind the local endpoint to a reserved port,
+ * because some NFS servers refuse requests from
+ * non-reserved (non-privileged) ports.
+ */
+ sin = &ssin;
+ bzero(sin, sizeof *sin);
+ sin->sin_len = sizeof(*sin);
+ sin->sin_family = AF_INET;
+ sin->sin_addr.s_addr = INADDR_ANY;
+ tport = IPPORT_RESERVED;
+ do {
+ tport--;
+ sin->sin_port = htons(tport);
+ error = sobind(so, (struct sockaddr *)sin, td);
+ } while (error == EADDRINUSE &&
+ tport > IPPORT_RESERVED / 2);
+ if (error) {
+ printf("bind failed\n");
+ goto out;
+ }
+
+ /*
+ * Setup socket address for the server.
+ */
+
+ /*
+ * Prepend RPC message header.
+ */
+ mhead = m_gethdr(M_WAITOK, MT_DATA);
+ mhead->m_next = *data;
+ call = mtod(mhead, struct krpc_call *);
+ mhead->m_len = sizeof(*call);
+ bzero((caddr_t)call, sizeof(*call));
+ /* rpc_call part */
+ xid++;
+ call->rp_xid = txdr_unsigned(xid);
+ /* call->rp_direction = 0; */
+ call->rp_rpcvers = txdr_unsigned(2);
+ call->rp_prog = txdr_unsigned(prog);
+ call->rp_vers = txdr_unsigned(vers);
+ call->rp_proc = txdr_unsigned(func);
+ /* rpc_auth part (auth_unix as root) */
+ call->rpc_auth.authtype = txdr_unsigned(AUTH_UNIX);
+ call->rpc_auth.authlen = txdr_unsigned(sizeof(struct auth_unix));
+ /* rpc_verf part (auth_null) */
+ call->rpc_verf.authtype = 0;
+ call->rpc_verf.authlen = 0;
+
+ /*
+ * Setup packet header
+ */
+ m_fixhdr(mhead);
+ mhead->m_pkthdr.rcvif = NULL;
+
+ /*
+ * Send it, repeatedly, until a reply is received,
+ * but delay each re-send by an increasing amount.
+ * If the delay hits the maximum, start complaining.
+ */
+ timo = 0;
+ for (;;) {
+ /* Send RPC request (or re-send). */
+ m = m_copym(mhead, 0, M_COPYALL, M_WAITOK);
+ error = sosend(so, (struct sockaddr *)sa, NULL, m,
+ NULL, 0, td);
+ if (error) {
+ printf("krpc_call: sosend: %d\n", error);
+ goto out;
+ }
+ m = NULL;
+
+ /* Determine new timeout. */
+ if (timo < MAX_RESEND_DELAY)
+ timo++;
+ else {
+ saddr = ntohl(sa->sin_addr.s_addr);
+ printf("RPC timeout for server %d.%d.%d.%d\n",
+ (saddr >> 24) & 255,
+ (saddr >> 16) & 255,
+ (saddr >> 8) & 255,
+ saddr & 255);
+ }
+
+ /*
+ * Wait for up to timo seconds for a reply.
+ * The socket receive timeout was set to 1 second.
+ */
+ secs = timo;
+ while (secs > 0) {
+ if (from) {
+ free(from, M_SONAME);
+ from = NULL;
+ }
+ if (m) {
+ m_freem(m);
+ m = NULL;
+ }
+ bzero(&auio, sizeof(auio));
+ auio.uio_resid = len = 1<<16;
+ rcvflg = 0;
+ error = soreceive(so, &from, &auio, &m, NULL, &rcvflg);
+ if (error == EWOULDBLOCK) {
+ secs--;
+ continue;
+ }
+ if (error)
+ goto out;
+ len -= auio.uio_resid;
+
+ /* Does the reply contain at least a header? */
+ if (len < MIN_REPLY_HDR)
+ continue;
+ if (m->m_len < MIN_REPLY_HDR)
+ continue;
+ reply = mtod(m, struct krpc_reply *);
+
+ /* Is it the right reply? */
+ if (reply->rp_direction != txdr_unsigned(REPLY))
+ continue;
+
+ if (reply->rp_xid != txdr_unsigned(xid))
+ continue;
+
+ /* Was RPC accepted? (authorization OK) */
+ if (reply->rp_astatus != 0) {
+ error = fxdr_unsigned(u_int32_t, reply->rp_errno);
+ printf("rpc denied, error=%d\n", error);
+ continue;
+ }
+
+ /* Did the call succeed? */
+ if (reply->rp_status != 0) {
+ error = fxdr_unsigned(u_int32_t, reply->rp_status);
+ if (error == PROG_MISMATCH) {
+ error = EBADRPC;
+ goto out;
+ }
+ printf("rpc denied, status=%d\n", error);
+ continue;
+ }
+
+ goto gotreply; /* break two levels */
+
+ } /* while secs */
+ } /* forever send/receive */
+
+ error = ETIMEDOUT;
+ goto out;
+
+ gotreply:
+
+ /*
+ * Get RPC reply header into first mbuf,
+ * get its length, then strip it off.
+ */
+ len = sizeof(*reply);
+ if (m->m_len < len) {
+ m = m_pullup(m, len);
+ if (m == NULL) {
+ error = ENOBUFS;
+ goto out;
+ }
+ }
+ reply = mtod(m, struct krpc_reply *);
+ if (reply->rp_auth.authtype != 0) {
+ len += fxdr_unsigned(u_int32_t, reply->rp_auth.authlen);
+ len = (len + 3) & ~3; /* XXX? */
+ }
+ m_adj(m, len);
+
+ /* result */
+ *data = m;
+ if (from_p) {
+ *from_p = from;
+ from = NULL;
+ }
+
+ out:
+ if (mhead) m_freem(mhead);
+ if (from) free(from, M_SONAME);
+ soclose(so);
+ return error;
+}
+
+/*
+ * eXternal Data Representation routines.
+ * (but with non-standard args...)
+ */
+
+/*
+ * String representation for RPC.
+ */
+struct xdr_string {
+ u_int32_t len; /* length without null or padding */
+ char data[4]; /* data (longer, of course) */
+ /* data is padded to a long-word boundary */
+};
+
+struct mbuf *
+xdr_string_encode(char *str, int len)
+{
+ struct mbuf *m;
+ struct xdr_string *xs;
+ int dlen; /* padded string length */
+ int mlen; /* message length */
+
+ dlen = (len + 3) & ~3;
+ mlen = dlen + 4;
+
+ if (mlen > MCLBYTES) /* If too big, we just can't do it. */
+ return (NULL);
+
+ m = m_get2(mlen, M_WAITOK, MT_DATA, 0);
+ xs = mtod(m, struct xdr_string *);
+ m->m_len = mlen;
+ xs->len = txdr_unsigned(len);
+ bcopy(str, xs->data, len);
+ return (m);
+}
diff --git a/freebsd/sys/nfs/nfs_common.h b/freebsd/sys/nfs/nfs_common.h
new file mode 100644
index 0000000..a821934
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_common.h
@@ -0,0 +1,137 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFS_COMMON_H_
+#define _NFS_NFS_COMMON_H_
+
+extern enum vtype nv3tov_type[];
+extern nfstype nfsv3_type[];
+
+#define vtonfsv2_mode(t, m) \
+ txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : MAKEIMODE((t), (m)))
+
+#define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
+#define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))])
+
+int nfs_adv(struct mbuf **, caddr_t *, int, int);
+void *nfsm_disct(struct mbuf **, caddr_t *, int, int, int);
+int nfs_realign(struct mbuf **, int);
+
+/* ****************************** */
+/* Build request/reply phase macros */
+
+void *nfsm_build_xx(int s, struct mbuf **mb, caddr_t *bpos);
+
+#define nfsm_build(c, s) \
+ (c)nfsm_build_xx((s), &mb, &bpos)
+
+/* ****************************** */
+/* Interpretation phase macros */
+
+void *nfsm_dissect_xx(int s, struct mbuf **md, caddr_t *dpos);
+void *nfsm_dissect_xx_nonblock(int s, struct mbuf **md, caddr_t *dpos);
+int nfsm_strsiz_xx(int *s, int m, struct mbuf **md, caddr_t *dpos);
+int nfsm_adv_xx(int s, struct mbuf **md, caddr_t *dpos);
+
+/* Error check helpers */
+#define nfsm_dcheck(t1, mrep) \
+do { \
+ if (t1 != 0) { \
+ error = t1; \
+ m_freem((mrep)); \
+ (mrep) = NULL; \
+ goto nfsmout; \
+ } \
+} while (0)
+
+#define nfsm_dcheckp(retp, mrep) \
+do { \
+ if (retp == NULL) { \
+ error = EBADRPC; \
+ m_freem((mrep)); \
+ (mrep) = NULL; \
+ goto nfsmout; \
+ } \
+} while (0)
+
+#define nfsm_dissect(c, s) \
+({ \
+ void *ret; \
+ ret = nfsm_dissect_xx((s), &md, &dpos); \
+ nfsm_dcheckp(ret, mrep); \
+ (c)ret; \
+})
+
+#define nfsm_dissect_nonblock(c, s) \
+({ \
+ void *ret; \
+ ret = nfsm_dissect_xx_nonblock((s), &md, &dpos); \
+ nfsm_dcheckp(ret, mrep); \
+ (c)ret; \
+})
+
+#define nfsm_strsiz(s,m) \
+do { \
+ int t1; \
+ t1 = nfsm_strsiz_xx(&(s), (m), &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while(0)
+
+#define nfsm_mtouio(p,s) \
+do {\
+ int32_t t1 = 0; \
+ if ((s) > 0) \
+ t1 = nfsm_mbuftouio(&md, (p), (s), &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#define nfsm_rndup(a) (((a)+3)&(~0x3))
+
+#define nfsm_adv(s) \
+do { \
+ int t1; \
+ t1 = nfsm_adv_xx((s), &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#ifdef __NO_STRICT_ALIGNMENT
+#define nfsm_aligned(p, t) 1
+#else
+#define nfsm_aligned(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0)
+#endif
+
+#endif
diff --git a/freebsd/sys/nfs/nfs_fha.c b/freebsd/sys/nfs/nfs_fha.c
new file mode 100644
index 0000000..8c5c144
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_fha.c
@@ -0,0 +1,527 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sysproto.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <sys/vnode.h>
+#include <sys/malloc.h>
+#include <sys/mount.h>
+#include <sys/mbuf.h>
+#include <sys/sbuf.h>
+
+#include <rpc/rpc.h>
+#include <nfs/nfs_fha.h>
+
+static MALLOC_DEFINE(M_NFS_FHA, "NFS FHA", "NFS FHA");
+
+/*
+ * XXX need to commonize definitions between old and new NFS code. Define
+ * this here so we don't include one nfsproto.h over the other.
+ */
+#define NFS_PROG 100003
+
+void
+fha_init(struct fha_params *softc)
+{
+ int i;
+
+ for (i = 0; i < FHA_HASH_SIZE; i++)
+ mtx_init(&softc->fha_hash[i].mtx, "fhalock", NULL, MTX_DEF);
+
+ /*
+ * Set the default tuning parameters.
+ */
+ softc->ctls.enable = FHA_DEF_ENABLE;
+ softc->ctls.read = FHA_DEF_READ;
+ softc->ctls.write = FHA_DEF_WRITE;
+ softc->ctls.bin_shift = FHA_DEF_BIN_SHIFT;
+ softc->ctls.max_nfsds_per_fh = FHA_DEF_MAX_NFSDS_PER_FH;
+ softc->ctls.max_reqs_per_nfsd = FHA_DEF_MAX_REQS_PER_NFSD;
+
+ /*
+ * Add sysctls so the user can change the tuning parameters.
+ */
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "enable", CTLFLAG_RWTUN,
+ &softc->ctls.enable, 0, "Enable NFS File Handle Affinity (FHA)");
+
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "read", CTLFLAG_RWTUN,
+ &softc->ctls.read, 0, "Enable NFS FHA read locality");
+
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "write", CTLFLAG_RWTUN,
+ &softc->ctls.write, 0, "Enable NFS FHA write locality");
+
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "bin_shift", CTLFLAG_RWTUN,
+ &softc->ctls.bin_shift, 0, "Maximum locality distance 2^(bin_shift) bytes");
+
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "max_nfsds_per_fh", CTLFLAG_RWTUN,
+ &softc->ctls.max_nfsds_per_fh, 0, "Maximum nfsd threads that "
+ "should be working on requests for the same file handle");
+
+ SYSCTL_ADD_UINT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "max_reqs_per_nfsd", CTLFLAG_RWTUN,
+ &softc->ctls.max_reqs_per_nfsd, 0, "Maximum requests that "
+ "single nfsd thread should be working on at any time");
+
+ SYSCTL_ADD_OID(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "fhe_stats", CTLTYPE_STRING | CTLFLAG_RD, 0, 0,
+ softc->callbacks.fhe_stats_sysctl, "A", "");
+
+}
+
+void
+fha_uninit(struct fha_params *softc)
+{
+ int i;
+
+ sysctl_ctx_free(&softc->sysctl_ctx);
+ for (i = 0; i < FHA_HASH_SIZE; i++)
+ mtx_destroy(&softc->fha_hash[i].mtx);
+}
+
+/*
+ * This just specifies that offsets should obey affinity when within
+ * the same 1Mbyte (1<<20) chunk for the file (reads only for now).
+ */
+static void
+fha_extract_info(struct svc_req *req, struct fha_info *i,
+ struct fha_callbacks *cb)
+{
+ struct mbuf *md;
+ caddr_t dpos;
+ static u_int64_t random_fh = 0;
+ int error;
+ int v3 = (req->rq_vers == 3);
+ rpcproc_t procnum;
+
+ /*
+ * We start off with a random fh. If we get a reasonable
+ * procnum, we set the fh. If there's a concept of offset
+ * that we're interested in, we set that.
+ */
+ i->fh = ++random_fh;
+ i->offset = 0;
+ i->locktype = LK_EXCLUSIVE;
+ i->read = i->write = 0;
+
+ /*
+ * Extract the procnum and convert to v3 form if necessary,
+ * taking care to deal with out-of-range procnums. Caller will
+ * ensure that rq_vers is either 2 or 3.
+ */
+ procnum = req->rq_proc;
+ if (!v3) {
+ rpcproc_t tmp_procnum;
+
+ tmp_procnum = cb->get_procnum(procnum);
+ if (tmp_procnum == -1)
+ goto out;
+ procnum = tmp_procnum;
+ }
+
+ /*
+ * We do affinity for most. However, we divide a realm of affinity
+ * by file offset so as to allow for concurrent random access. We
+ * only do this for reads today, but this may change when IFS supports
+ * efficient concurrent writes.
+ */
+ if (cb->no_offset(procnum))
+ goto out;
+
+ i->read = cb->is_read(procnum);
+ i->write = cb->is_write(procnum);
+
+ error = cb->realign(&req->rq_args, M_NOWAIT);
+ if (error)
+ goto out;
+ md = req->rq_args;
+ dpos = mtod(md, caddr_t);
+
+ /* Grab the filehandle. */
+ error = cb->get_fh(&i->fh, v3, &md, &dpos);
+ if (error)
+ goto out;
+
+ /* Content ourselves with zero offset for all but reads. */
+ if (i->read || i->write)
+ cb->get_offset(&md, &dpos, v3, i);
+
+out:
+ cb->set_locktype(procnum, i);
+}
+
+static struct fha_hash_entry *
+fha_hash_entry_new(u_int64_t fh)
+{
+ struct fha_hash_entry *e;
+
+ e = malloc(sizeof(*e), M_NFS_FHA, M_WAITOK);
+ e->fh = fh;
+ e->num_rw = 0;
+ e->num_exclusive = 0;
+ e->num_threads = 0;
+ LIST_INIT(&e->threads);
+
+ return (e);
+}
+
+static void
+fha_hash_entry_destroy(struct fha_hash_entry *e)
+{
+
+ mtx_assert(e->mtx, MA_OWNED);
+ KASSERT(e->num_rw == 0,
+ ("%d reqs on destroyed fhe %p", e->num_rw, e));
+ KASSERT(e->num_exclusive == 0,
+ ("%d exclusive reqs on destroyed fhe %p", e->num_exclusive, e));
+ KASSERT(e->num_threads == 0,
+ ("%d threads on destroyed fhe %p", e->num_threads, e));
+ free(e, M_NFS_FHA);
+}
+
+static void
+fha_hash_entry_remove(struct fha_hash_entry *e)
+{
+
+ mtx_assert(e->mtx, MA_OWNED);
+ LIST_REMOVE(e, link);
+ fha_hash_entry_destroy(e);
+}
+
+static struct fha_hash_entry *
+fha_hash_entry_lookup(struct fha_params *softc, u_int64_t fh)
+{
+ struct fha_hash_slot *fhs;
+ struct fha_hash_entry *fhe, *new_fhe;
+
+ fhs = &softc->fha_hash[fh % FHA_HASH_SIZE];
+ new_fhe = fha_hash_entry_new(fh);
+ new_fhe->mtx = &fhs->mtx;
+ mtx_lock(&fhs->mtx);
+ LIST_FOREACH(fhe, &fhs->list, link)
+ if (fhe->fh == fh)
+ break;
+ if (!fhe) {
+ fhe = new_fhe;
+ LIST_INSERT_HEAD(&fhs->list, fhe, link);
+ } else
+ fha_hash_entry_destroy(new_fhe);
+ return (fhe);
+}
+
+static void
+fha_hash_entry_add_thread(struct fha_hash_entry *fhe, SVCTHREAD *thread)
+{
+
+ mtx_assert(fhe->mtx, MA_OWNED);
+ thread->st_p2 = 0;
+ LIST_INSERT_HEAD(&fhe->threads, thread, st_alink);
+ fhe->num_threads++;
+}
+
+static void
+fha_hash_entry_remove_thread(struct fha_hash_entry *fhe, SVCTHREAD *thread)
+{
+
+ mtx_assert(fhe->mtx, MA_OWNED);
+ KASSERT(thread->st_p2 == 0,
+ ("%d reqs on removed thread %p", thread->st_p2, thread));
+ LIST_REMOVE(thread, st_alink);
+ fhe->num_threads--;
+}
+
+/*
+ * Account for an ongoing operation associated with this file.
+ */
+static void
+fha_hash_entry_add_op(struct fha_hash_entry *fhe, int locktype, int count)
+{
+
+ mtx_assert(fhe->mtx, MA_OWNED);
+ if (LK_EXCLUSIVE == locktype)
+ fhe->num_exclusive += count;
+ else
+ fhe->num_rw += count;
+}
+
+/*
+ * Get the service thread currently associated with the fhe that is
+ * appropriate to handle this operation.
+ */
+static SVCTHREAD *
+fha_hash_entry_choose_thread(struct fha_params *softc,
+ struct fha_hash_entry *fhe, struct fha_info *i, SVCTHREAD *this_thread)
+{
+ SVCTHREAD *thread, *min_thread = NULL;
+ int req_count, min_count = 0;
+ off_t offset1, offset2;
+
+ LIST_FOREACH(thread, &fhe->threads, st_alink) {
+ req_count = thread->st_p2;
+
+ /* If there are any writes in progress, use the first thread. */
+ if (fhe->num_exclusive) {
+#if 0
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ "fha: %p(%d)w", thread, req_count);
+#endif
+ return (thread);
+ }
+
+ /* Check whether we should consider locality. */
+ if ((i->read && !softc->ctls.read) ||
+ (i->write && !softc->ctls.write))
+ goto noloc;
+
+ /*
+ * Check for locality, making sure that we won't
+ * exceed our per-thread load limit in the process.
+ */
+ offset1 = i->offset;
+ offset2 = thread->st_p3;
+
+ if (((offset1 >= offset2)
+ && ((offset1 - offset2) < (1 << softc->ctls.bin_shift)))
+ || ((offset2 > offset1)
+ && ((offset2 - offset1) < (1 << softc->ctls.bin_shift)))) {
+ if ((softc->ctls.max_reqs_per_nfsd == 0) ||
+ (req_count < softc->ctls.max_reqs_per_nfsd)) {
+#if 0
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ "fha: %p(%d)r", thread, req_count);
+#endif
+ return (thread);
+ }
+ }
+
+noloc:
+ /*
+ * We don't have a locality match, so skip this thread,
+ * but keep track of the most attractive thread in case
+ * we need to come back to it later.
+ */
+#if 0
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ "fha: %p(%d)s off1 %llu off2 %llu", thread,
+ req_count, offset1, offset2);
+#endif
+ if ((min_thread == NULL) || (req_count < min_count)) {
+ min_count = req_count;
+ min_thread = thread;
+ }
+ }
+
+ /*
+ * We didn't find a good match yet. See if we can add
+ * a new thread to this file handle entry's thread list.
+ */
+ if ((softc->ctls.max_nfsds_per_fh == 0) ||
+ (fhe->num_threads < softc->ctls.max_nfsds_per_fh)) {
+ thread = this_thread;
+#if 0
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ "fha: %p(%d)t", thread, thread->st_p2);
+#endif
+ fha_hash_entry_add_thread(fhe, thread);
+ } else {
+ /*
+ * We don't want to use any more threads for this file, so
+ * go back to the most attractive nfsd we're already using.
+ */
+ thread = min_thread;
+ }
+
+ return (thread);
+}
+
+/*
+ * After getting a request, try to assign it to some thread. Usually we
+ * handle it ourselves.
+ */
+SVCTHREAD *
+fha_assign(SVCTHREAD *this_thread, struct svc_req *req,
+ struct fha_params *softc)
+{
+ SVCTHREAD *thread;
+ struct fha_info i;
+ struct fha_hash_entry *fhe;
+ struct fha_callbacks *cb;
+
+ cb = &softc->callbacks;
+
+ /* Check to see whether we're enabled. */
+ if (softc->ctls.enable == 0)
+ goto thist;
+
+ /*
+ * Only do placement if this is an NFS request.
+ */
+ if (req->rq_prog != NFS_PROG)
+ goto thist;
+
+ if (req->rq_vers != 2 && req->rq_vers != 3)
+ goto thist;
+
+ fha_extract_info(req, &i, cb);
+
+ /*
+ * We save the offset associated with this request for later
+ * nfsd matching.
+ */
+ fhe = fha_hash_entry_lookup(softc, i.fh);
+ req->rq_p1 = fhe;
+ req->rq_p2 = i.locktype;
+ req->rq_p3 = i.offset;
+
+ /*
+ * Choose a thread, taking into consideration locality, thread load,
+ * and the number of threads already working on this file.
+ */
+ thread = fha_hash_entry_choose_thread(softc, fhe, &i, this_thread);
+ KASSERT(thread, ("fha_assign: NULL thread!"));
+ fha_hash_entry_add_op(fhe, i.locktype, 1);
+ thread->st_p2++;
+ thread->st_p3 = i.offset;
+
+ /*
+ * Grab the pool lock here to not let chosen thread go away before
+ * the new request inserted to its queue while we drop fhe lock.
+ */
+ mtx_lock(&thread->st_lock);
+ mtx_unlock(fhe->mtx);
+
+ return (thread);
+thist:
+ req->rq_p1 = NULL;
+ mtx_lock(&this_thread->st_lock);
+ return (this_thread);
+}
+
+/*
+ * Called when we're done with an operation. The request has already
+ * been de-queued.
+ */
+void
+fha_nd_complete(SVCTHREAD *thread, struct svc_req *req)
+{
+ struct fha_hash_entry *fhe = req->rq_p1;
+ struct mtx *mtx;
+
+ /*
+ * This may be called for reqs that didn't go through
+ * fha_assign (e.g. extra NULL ops used for RPCSEC_GSS.
+ */
+ if (!fhe)
+ return;
+
+ mtx = fhe->mtx;
+ mtx_lock(mtx);
+ fha_hash_entry_add_op(fhe, req->rq_p2, -1);
+ thread->st_p2--;
+ KASSERT(thread->st_p2 >= 0, ("Negative request count %d on %p",
+ thread->st_p2, thread));
+ if (thread->st_p2 == 0) {
+ fha_hash_entry_remove_thread(fhe, thread);
+ if (0 == fhe->num_rw + fhe->num_exclusive)
+ fha_hash_entry_remove(fhe);
+ }
+ mtx_unlock(mtx);
+}
+
+int
+fhe_stats_sysctl(SYSCTL_HANDLER_ARGS, struct fha_params *softc)
+{
+ int error, i;
+ struct sbuf sb;
+ struct fha_hash_entry *fhe;
+ bool_t first, hfirst;
+ SVCTHREAD *thread;
+
+ sbuf_new(&sb, NULL, 65536, SBUF_FIXEDLEN);
+
+ if (!*softc->pool) {
+ sbuf_printf(&sb, "NFSD not running\n");
+ goto out;
+ }
+
+ for (i = 0; i < FHA_HASH_SIZE; i++)
+ if (!LIST_EMPTY(&softc->fha_hash[i].list))
+ break;
+
+ if (i == FHA_HASH_SIZE) {
+ sbuf_printf(&sb, "No file handle entries.\n");
+ goto out;
+ }
+
+ hfirst = TRUE;
+ for (; i < FHA_HASH_SIZE; i++) {
+ mtx_lock(&softc->fha_hash[i].mtx);
+ if (LIST_EMPTY(&softc->fha_hash[i].list)) {
+ mtx_unlock(&softc->fha_hash[i].mtx);
+ continue;
+ }
+ sbuf_printf(&sb, "%shash %d: {\n", hfirst ? "" : ", ", i);
+ first = TRUE;
+ LIST_FOREACH(fhe, &softc->fha_hash[i].list, link) {
+ sbuf_printf(&sb, "%sfhe %p: {\n", first ? " " : ", ", fhe);
+
+ sbuf_printf(&sb, " fh: %ju\n", (uintmax_t) fhe->fh);
+ sbuf_printf(&sb, " num_rw/exclusive: %d/%d\n",
+ fhe->num_rw, fhe->num_exclusive);
+ sbuf_printf(&sb, " num_threads: %d\n", fhe->num_threads);
+
+ LIST_FOREACH(thread, &fhe->threads, st_alink) {
+ sbuf_printf(&sb, " thread %p offset %ju "
+ "reqs %d\n", thread,
+ thread->st_p3, thread->st_p2);
+ }
+
+ sbuf_printf(&sb, " }");
+ first = FALSE;
+ }
+ sbuf_printf(&sb, "\n}");
+ mtx_unlock(&softc->fha_hash[i].mtx);
+ hfirst = FALSE;
+ }
+
+ out:
+ sbuf_trim(&sb);
+ sbuf_finish(&sb);
+ error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
+ sbuf_delete(&sb);
+ return (error);
+}
diff --git a/freebsd/sys/nfs/nfs_fha.h b/freebsd/sys/nfs/nfs_fha.h
new file mode 100644
index 0000000..230d13b
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_fha.h
@@ -0,0 +1,122 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* $FreeBSD$ */
+
+#ifndef _NFS_FHA_H
+#define _NFS_FHA_H 1
+
+#ifdef _KERNEL
+
+/* Sysctl defaults. */
+#define FHA_DEF_ENABLE 1
+#define FHA_DEF_READ 1
+#define FHA_DEF_WRITE 1
+#define FHA_DEF_BIN_SHIFT 22 /* 4MB */
+#define FHA_DEF_MAX_NFSDS_PER_FH 8
+#define FHA_DEF_MAX_REQS_PER_NFSD 0 /* Unlimited */
+
+#define FHA_HASH_SIZE 251
+
+struct fha_ctls {
+ int enable;
+ int read;
+ int write;
+ uint32_t bin_shift;
+ uint32_t max_nfsds_per_fh;
+ uint32_t max_reqs_per_nfsd;
+};
+
+/*
+ * These are the entries in the filehandle hash. They talk about a specific
+ * file, requests against which are being handled by one or more nfsds. We
+ * keep a chain of nfsds against the file. We only have more than one if reads
+ * are ongoing, and then only if the reads affect disparate regions of the
+ * file.
+ *
+ * In general, we want to assign a new request to an existing nfsd if it is
+ * going to contend with work happening already on that nfsd, or if the
+ * operation is a read and the nfsd is already handling a proximate read. We
+ * do this to avoid jumping around in the read stream unnecessarily, and to
+ * avoid contention between threads over single files.
+ */
+struct fha_hash_entry {
+ struct mtx *mtx;
+ LIST_ENTRY(fha_hash_entry) link;
+ u_int64_t fh;
+ u_int32_t num_rw;
+ u_int32_t num_exclusive;
+ u_int8_t num_threads;
+ struct svcthread_list threads;
+};
+
+LIST_HEAD(fha_hash_entry_list, fha_hash_entry);
+
+struct fha_hash_slot {
+ struct fha_hash_entry_list list;
+ struct mtx mtx;
+};
+
+/* A structure used for passing around data internally. */
+struct fha_info {
+ u_int64_t fh;
+ off_t offset;
+ int locktype;
+ int read;
+ int write;
+};
+
+struct fha_callbacks {
+ rpcproc_t (*get_procnum)(rpcproc_t procnum);
+ int (*realign)(struct mbuf **mb, int malloc_flags);
+ int (*get_fh)(uint64_t *fh, int v3, struct mbuf **md, caddr_t *dpos);
+ int (*is_read)(rpcproc_t procnum);
+ int (*is_write)(rpcproc_t procnum);
+ int (*get_offset)(struct mbuf **md, caddr_t *dpos, int v3, struct
+ fha_info *info);
+ int (*no_offset)(rpcproc_t procnum);
+ void (*set_locktype)(rpcproc_t procnum, struct fha_info *info);
+ int (*fhe_stats_sysctl)(SYSCTL_HANDLER_ARGS);
+};
+
+struct fha_params {
+ struct fha_hash_slot fha_hash[FHA_HASH_SIZE];
+ struct sysctl_ctx_list sysctl_ctx;
+ struct sysctl_oid *sysctl_tree;
+ struct fha_ctls ctls;
+ struct fha_callbacks callbacks;
+ char server_name[32];
+ SVCPOOL **pool;
+};
+
+void fha_nd_complete(SVCTHREAD *, struct svc_req *);
+SVCTHREAD *fha_assign(SVCTHREAD *, struct svc_req *, struct fha_params *);
+void fha_init(struct fha_params *softc);
+void fha_uninit(struct fha_params *softc);
+int fhe_stats_sysctl(SYSCTL_HANDLER_ARGS, struct fha_params *softc);
+
+#endif /* _KERNEL */
+#endif /* _NFS_FHA_H_ */
diff --git a/freebsd/sys/nfs/nfs_kdtrace.h b/freebsd/sys/nfs/nfs_kdtrace.h
new file mode 100644
index 0000000..13d68aa
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_kdtrace.h
@@ -0,0 +1,122 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * This software was developed at the University of Cambridge Computer
+ * Laboratory with support from a grant from Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFS_KDTRACE_H_
+#define _NFSCLIENT_NFS_KDTRACE_H_
+
+#ifdef KDTRACE_HOOKS
+#include <sys/dtrace_bsd.h>
+
+/*
+ * Definitions for NFS access cache probes.
+ */
+extern uint32_t nfsclient_accesscache_flush_done_id;
+extern uint32_t nfsclient_accesscache_get_hit_id;
+extern uint32_t nfsclient_accesscache_get_miss_id;
+extern uint32_t nfsclient_accesscache_load_done_id;
+
+#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp) do { \
+ if (dtrace_nfsclient_accesscache_flush_done_probe != NULL) \
+ (dtrace_nfsclient_accesscache_flush_done_probe)( \
+ nfsclient_accesscache_flush_done_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode) do { \
+ if (dtrace_nfsclient_accesscache_get_hit_probe != NULL) \
+ (dtrace_nfsclient_accesscache_get_hit_probe)( \
+ nfsclient_accesscache_get_hit_id, (vp), (uid), \
+ (mode)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode) do { \
+ if (dtrace_nfsclient_accesscache_get_miss_probe != NULL) \
+ (dtrace_nfsclient_accesscache_get_miss_probe)( \
+ nfsclient_accesscache_get_miss_id, (vp), (uid), \
+ (mode)); \
+} while (0)
+
+#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error) do { \
+ if (dtrace_nfsclient_accesscache_load_done_probe != NULL) \
+ (dtrace_nfsclient_accesscache_load_done_probe)( \
+ nfsclient_accesscache_load_done_id, (vp), (uid), \
+ (rmode), (error)); \
+} while (0)
+
+/*
+ * Definitions for NFS attribute cache probes.
+ */
+extern uint32_t nfsclient_attrcache_flush_done_id;
+extern uint32_t nfsclient_attrcache_get_hit_id;
+extern uint32_t nfsclient_attrcache_get_miss_id;
+extern uint32_t nfsclient_attrcache_load_done_id;
+
+#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp) do { \
+ if (dtrace_nfsclient_attrcache_flush_done_probe != NULL) \
+ (dtrace_nfsclient_attrcache_flush_done_probe)( \
+ nfsclient_attrcache_flush_done_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap) do { \
+ if (dtrace_nfsclient_attrcache_get_hit_probe != NULL) \
+ (dtrace_nfsclient_attrcache_get_hit_probe)( \
+ nfsclient_attrcache_get_hit_id, (vp), (vap)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp) do { \
+ if (dtrace_nfsclient_attrcache_get_miss_probe != NULL) \
+ (dtrace_nfsclient_attrcache_get_miss_probe)( \
+ nfsclient_attrcache_get_miss_id, (vp)); \
+} while (0)
+
+#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error) do { \
+ if (dtrace_nfsclient_attrcache_load_done_probe != NULL) \
+ (dtrace_nfsclient_attrcache_load_done_probe)( \
+ nfsclient_attrcache_load_done_id, (vp), (vap), \
+ (error)); \
+} while (0)
+
+#else /* !KDTRACE_HOOKS */
+
+#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp)
+#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode)
+#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode)
+#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error)
+
+#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp)
+#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap)
+#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp)
+#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error)
+
+#endif /* KDTRACE_HOOKS */
+
+#endif /* !_NFSCLIENT_NFS_KDTRACE_H_ */
diff --git a/freebsd/sys/nfs/nfs_lock.c b/freebsd/sys/nfs/nfs_lock.c
new file mode 100644
index 0000000..efa1e80
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_lock.c
@@ -0,0 +1,403 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from BSDI nfs_lock.c,v 2.4 1998/12/14 23:49:56 jch Exp
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/fcntl.h>
+#include <sys/kernel.h> /* for hz */
+#include <sys/limits.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/lockf.h> /* for hz */ /* Must come after sys/malloc.h */
+#include <sys/mbuf.h>
+#include <sys/mount.h>
+#include <sys/namei.h>
+#include <sys/priv.h>
+#include <sys/proc.h>
+#include <sys/resourcevar.h>
+#include <sys/socket.h>
+#include <sys/socket.h>
+#include <sys/unistd.h>
+#include <sys/vnode.h>
+
+#include <net/if.h>
+
+#include <nfs/nfsproto.h>
+#include <nfs/nfs_lock.h>
+#include <nfsclient/nfs.h>
+#include <nfsclient/nfsmount.h>
+#include <nfsclient/nfsnode.h>
+#include <nfsclient/nlminfo.h>
+
+extern void (*nlminfo_release_p)(struct proc *p);
+
+vop_advlock_t *nfs_advlock_p = nfs_dolock;
+vop_reclaim_t *nfs_reclaim_p = NULL;
+
+static MALLOC_DEFINE(M_NFSLOCK, "nfsclient_lock", "NFS lock request");
+static MALLOC_DEFINE(M_NLMINFO, "nfsclient_nlminfo",
+ "NFS lock process structure");
+
+static int nfslockdans(struct thread *td, struct lockd_ans *ansp);
+static void nlminfo_release(struct proc *p);
+/*
+ * --------------------------------------------------------------------
+ * A miniature device driver which the userland uses to talk to us.
+ *
+ */
+
+static struct cdev *nfslock_dev;
+static struct mtx nfslock_mtx;
+static int nfslock_isopen;
+static TAILQ_HEAD(,__lock_msg) nfslock_list;
+
+static int
+nfslock_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
+{
+ int error;
+
+ error = priv_check(td, PRIV_NFS_LOCKD);
+ if (error)
+ return (error);
+
+ mtx_lock(&nfslock_mtx);
+ if (!nfslock_isopen) {
+ error = 0;
+ nfslock_isopen = 1;
+ } else {
+ error = EOPNOTSUPP;
+ }
+ mtx_unlock(&nfslock_mtx);
+
+ return (error);
+}
+
+static int
+nfslock_close(struct cdev *dev, int fflag, int devtype, struct thread *td)
+{
+ struct __lock_msg *lm;
+
+ mtx_lock(&nfslock_mtx);
+ nfslock_isopen = 0;
+ while (!TAILQ_EMPTY(&nfslock_list)) {
+ lm = TAILQ_FIRST(&nfslock_list);
+ /* XXX: answer request */
+ TAILQ_REMOVE(&nfslock_list, lm, lm_link);
+ free(lm, M_NFSLOCK);
+ }
+ mtx_unlock(&nfslock_mtx);
+ return (0);
+}
+
+static int
+nfslock_read(struct cdev *dev, struct uio *uio, int ioflag)
+{
+ int error;
+ struct __lock_msg *lm;
+
+ if (uio->uio_resid != sizeof *lm)
+ return (EOPNOTSUPP);
+ lm = NULL;
+ error = 0;
+ mtx_lock(&nfslock_mtx);
+ while (TAILQ_EMPTY(&nfslock_list)) {
+ error = msleep(&nfslock_list, &nfslock_mtx, PSOCK | PCATCH,
+ "nfslockd", 0);
+ if (error)
+ break;
+ }
+ if (!error) {
+ lm = TAILQ_FIRST(&nfslock_list);
+ TAILQ_REMOVE(&nfslock_list, lm, lm_link);
+ }
+ mtx_unlock(&nfslock_mtx);
+ if (!error) {
+ error = uiomove(lm, sizeof *lm, uio);
+ free(lm, M_NFSLOCK);
+ }
+ return (error);
+}
+
+static int
+nfslock_write(struct cdev *dev, struct uio *uio, int ioflag)
+{
+ struct lockd_ans la;
+ int error;
+
+ if (uio->uio_resid != sizeof la)
+ return (EOPNOTSUPP);
+ error = uiomove(&la, sizeof la, uio);
+ if (!error)
+ error = nfslockdans(curthread, &la);
+ return (error);
+}
+
+static int
+nfslock_send(struct __lock_msg *lm)
+{
+ struct __lock_msg *lm2;
+ int error;
+
+ error = 0;
+ lm2 = malloc(sizeof *lm2, M_NFSLOCK, M_WAITOK);
+ mtx_lock(&nfslock_mtx);
+ if (nfslock_isopen) {
+ memcpy(lm2, lm, sizeof *lm2);
+ TAILQ_INSERT_TAIL(&nfslock_list, lm2, lm_link);
+ wakeup(&nfslock_list);
+ } else {
+ error = EOPNOTSUPP;
+ }
+ mtx_unlock(&nfslock_mtx);
+ if (error)
+ free(lm2, M_NFSLOCK);
+ return (error);
+}
+
+static struct cdevsw nfslock_cdevsw = {
+ .d_version = D_VERSION,
+ .d_open = nfslock_open,
+ .d_close = nfslock_close,
+ .d_read = nfslock_read,
+ .d_write = nfslock_write,
+ .d_name = "nfslock"
+};
+
+static int
+nfslock_modevent(module_t mod __unused, int type, void *data __unused)
+{
+
+ switch (type) {
+ case MOD_LOAD:
+ if (bootverbose)
+ printf("nfslock: pseudo-device\n");
+ mtx_init(&nfslock_mtx, "nfslock", NULL, MTX_DEF);
+ TAILQ_INIT(&nfslock_list);
+ nlminfo_release_p = nlminfo_release;
+ nfslock_dev = make_dev(&nfslock_cdevsw, 0,
+ UID_ROOT, GID_KMEM, 0600, _PATH_NFSLCKDEV);
+ return (0);
+ default:
+ return (EOPNOTSUPP);
+ }
+}
+
+DEV_MODULE(nfslock, nfslock_modevent, NULL);
+MODULE_VERSION(nfslock, 1);
+
+
+/*
+ * XXX
+ * We have to let the process know if the call succeeded. I'm using an extra
+ * field in the p_nlminfo field in the proc structure, as it is already for
+ * lockd stuff.
+ */
+
+/*
+ * nfs_advlock --
+ * NFS advisory byte-level locks.
+ *
+ * The vnode shall be (shared) locked on the entry, it is
+ * unconditionally unlocked after.
+ */
+int
+nfs_dolock(struct vop_advlock_args *ap)
+{
+ LOCKD_MSG msg;
+ struct thread *td;
+ struct vnode *vp;
+ int error;
+ struct flock *fl;
+ struct proc *p;
+ struct nfsmount *nmp;
+ struct timeval boottime;
+
+ td = curthread;
+ p = td->td_proc;
+
+ vp = ap->a_vp;
+ fl = ap->a_fl;
+ nmp = VFSTONFS(vp->v_mount);
+
+ ASSERT_VOP_LOCKED(vp, "nfs_dolock");
+
+ nmp->nm_getinfo(vp, msg.lm_fh, &msg.lm_fh_len, &msg.lm_addr,
+ &msg.lm_nfsv3, NULL, NULL);
+ VOP_UNLOCK(vp, 0);
+
+ /*
+ * the NLM protocol doesn't allow the server to return an error
+ * on ranges, so we do it.
+ */
+ if (fl->l_whence != SEEK_END) {
+ if ((fl->l_whence != SEEK_CUR && fl->l_whence != SEEK_SET) ||
+ fl->l_start < 0 ||
+ (fl->l_len < 0 &&
+ (fl->l_start == 0 || fl->l_start + fl->l_len < 0)))
+ return (EINVAL);
+ if (fl->l_len > 0 &&
+ (fl->l_len - 1 > OFF_MAX - fl->l_start))
+ return (EOVERFLOW);
+ }
+
+ /*
+ * Fill in the information structure.
+ */
+ msg.lm_version = LOCKD_MSG_VERSION;
+ msg.lm_msg_ident.pid = p->p_pid;
+
+ mtx_lock(&Giant);
+ /*
+ * if there is no nfsowner table yet, allocate one.
+ */
+ if (p->p_nlminfo == NULL) {
+ p->p_nlminfo = malloc(sizeof(struct nlminfo),
+ M_NLMINFO, M_WAITOK | M_ZERO);
+ p->p_nlminfo->pid_start = p->p_stats->p_start;
+ getboottime(&boottime);
+ timevaladd(&p->p_nlminfo->pid_start, &boottime);
+ }
+ msg.lm_msg_ident.pid_start = p->p_nlminfo->pid_start;
+ msg.lm_msg_ident.msg_seq = ++(p->p_nlminfo->msg_seq);
+
+ msg.lm_fl = *fl;
+ msg.lm_wait = ap->a_flags & F_WAIT;
+ msg.lm_getlk = ap->a_op == F_GETLK;
+ cru2x(td->td_ucred, &msg.lm_cred);
+
+ for (;;) {
+ error = nfslock_send(&msg);
+ if (error)
+ goto out;
+
+ /* Unlocks succeed immediately. */
+ if (fl->l_type == F_UNLCK)
+ goto out;
+
+ /*
+ * Retry after 20 seconds if we haven't gotten a response yet.
+ * This number was picked out of thin air... but is longer
+ * then even a reasonably loaded system should take (at least
+ * on a local network). XXX Probably should use a back-off
+ * scheme.
+ *
+ * XXX: No PCATCH here since we currently have no useful
+ * way to signal to the userland rpc.lockd that the request
+ * has been aborted. Once the rpc.lockd implementation
+ * can handle aborts, and we report them properly,
+ * PCATCH can be put back. In the mean time, if we did
+ * permit aborting, the lock attempt would "get lost"
+ * and the lock would get stuck in the locked state.
+ */
+ error = tsleep(p->p_nlminfo, PUSER, "lockd", 20*hz);
+ if (error != 0) {
+ if (error == EWOULDBLOCK) {
+ /*
+ * We timed out, so we rewrite the request
+ * to the fifo.
+ */
+ continue;
+ }
+
+ break;
+ }
+
+ if (msg.lm_getlk && p->p_nlminfo->retcode == 0) {
+ if (p->p_nlminfo->set_getlk_pid) {
+ fl->l_sysid = 0; /* XXX */
+ fl->l_pid = p->p_nlminfo->getlk_pid;
+ } else {
+ fl->l_type = F_UNLCK;
+ }
+ }
+ error = p->p_nlminfo->retcode;
+ break;
+ }
+ out:
+ mtx_unlock(&Giant);
+ return (error);
+}
+
+/*
+ * nfslockdans --
+ * NFS advisory byte-level locks answer from the lock daemon.
+ */
+static int
+nfslockdans(struct thread *td, struct lockd_ans *ansp)
+{
+ struct proc *targetp;
+
+ /* the version should match, or we're out of sync */
+ if (ansp->la_vers != LOCKD_ANS_VERSION)
+ return (EINVAL);
+
+ /* Find the process, set its return errno and wake it up. */
+ if ((targetp = pfind(ansp->la_msg_ident.pid)) == NULL)
+ return (ESRCH);
+
+ /* verify the pid hasn't been reused (if we can), and it isn't waiting
+ * for an answer from a more recent request. We return an EPIPE if
+ * the match fails, because we've already used ESRCH above, and this
+ * is sort of like writing on a pipe after the reader has closed it.
+ */
+ if (targetp->p_nlminfo == NULL ||
+ ((ansp->la_msg_ident.msg_seq != -1) &&
+ (timevalcmp(&targetp->p_nlminfo->pid_start,
+ &ansp->la_msg_ident.pid_start, !=) ||
+ targetp->p_nlminfo->msg_seq != ansp->la_msg_ident.msg_seq))) {
+ PROC_UNLOCK(targetp);
+ return (EPIPE);
+ }
+
+ targetp->p_nlminfo->retcode = ansp->la_errno;
+ targetp->p_nlminfo->set_getlk_pid = ansp->la_set_getlk_pid;
+ targetp->p_nlminfo->getlk_pid = ansp->la_getlk_pid;
+
+ wakeup(targetp->p_nlminfo);
+
+ PROC_UNLOCK(targetp);
+ return (0);
+}
+
+/*
+ * Free nlminfo attached to process.
+ */
+void
+nlminfo_release(struct proc *p)
+{
+ free(p->p_nlminfo, M_NLMINFO);
+ p->p_nlminfo = NULL;
+}
diff --git a/freebsd/sys/nfs/nfs_lock.h b/freebsd/sys/nfs/nfs_lock.h
new file mode 100644
index 0000000..63fdb20
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_lock.h
@@ -0,0 +1,94 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1998 Berkeley Software Design, Inc. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from nfs_lock.h,v 2.2 1998/04/28 19:38:41 don Exp
+ * $FreeBSD$
+ */
+
+/*
+ * lockd uses the nfssvc system call to get the unique kernel services it needs.
+ * It passes in a request structure with a version number at the start.
+ * This prevents libc from needing to change if the information passed
+ * between lockd and the kernel needs to change.
+ *
+ * If a structure changes, you must bump the version number.
+ */
+
+/*
+ * The fifo where the kernel writes requests for locks on remote NFS files,
+ * and where lockd reads these requests.
+ *
+ */
+#define _PATH_NFSLCKDEV "nfslock"
+
+/*
+ * This structure is used to uniquely identify the process which originated
+ * a particular message to lockd. A sequence number is used to differentiate
+ * multiple messages from the same process. A process start time is used to
+ * detect the unlikely, but possible, event of the recycling of a pid.
+ */
+struct lockd_msg_ident {
+ pid_t pid; /* The process ID. */
+ struct timeval pid_start; /* Start time of process id */
+ int msg_seq; /* Sequence number of message */
+};
+
+#define LOCKD_MSG_VERSION 3
+
+/*
+ * The structure that the kernel hands us for each lock request.
+ */
+typedef struct __lock_msg {
+ TAILQ_ENTRY(__lock_msg) lm_link; /* internal linkage */
+ int lm_version; /* which version is this */
+ struct lockd_msg_ident lm_msg_ident; /* originator of the message */
+ struct flock lm_fl; /* The lock request. */
+ int lm_wait; /* The F_WAIT flag. */
+ int lm_getlk; /* is this a F_GETLK request */
+ struct sockaddr_storage lm_addr; /* The address. */
+ int lm_nfsv3; /* If NFS version 3. */
+ size_t lm_fh_len; /* The file handle length. */
+ struct xucred lm_cred; /* user cred for lock req */
+ u_int8_t lm_fh[NFSX_V3FHMAX];/* The file handle. */
+} LOCKD_MSG;
+
+#define LOCKD_ANS_VERSION 1
+
+struct lockd_ans {
+ int la_vers;
+ struct lockd_msg_ident la_msg_ident; /* originator of the message */
+ int la_errno;
+ int la_set_getlk_pid; /* use returned pid */
+ int la_getlk_pid; /* returned pid for F_GETLK */
+};
+
+#ifdef _KERNEL
+int nfs_dolock(struct vop_advlock_args *ap);
+extern vop_advlock_t *nfs_advlock_p;
+extern vop_reclaim_t *nfs_reclaim_p;
+#endif
diff --git a/freebsd/sys/nfs/nfs_mountcommon.h b/freebsd/sys/nfs/nfs_mountcommon.h
new file mode 100644
index 0000000..d8762cf
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_mountcommon.h
@@ -0,0 +1,56 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2009 Rick Macklem, University of Guelph
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_MOUNTCOMMON_H_
+#define _NFS_MOUNTCOMMON_H_
+
+/*
+ * The common fields of the nfsmount structure for the two clients
+ * used by the nlm. It includes a function pointer that provides
+ * a mechanism for getting the client specific info for an nfs vnode.
+ */
+typedef void nfs_getinfofromvp_ftype(struct vnode *, uint8_t *, size_t *,
+ struct sockaddr_storage *, int *, off_t *,
+ struct timeval *);
+typedef int nfs_vinvalbuf_ftype(struct vnode *, int, struct thread *, int);
+
+struct nfsmount_common {
+ struct mtx nmcom_mtx;
+ int nmcom_flag; /* Flags for soft/hard... */
+ int nmcom_state; /* Internal state flags */
+ struct mount *nmcom_mountp; /* Vfs structure for this filesystem */
+ int nmcom_timeo; /* Init timer for NFSMNT_DUMBTIMR */
+ int nmcom_retry; /* Max retries */
+ char nmcom_hostname[MNAMELEN]; /* server's name */
+ nfs_getinfofromvp_ftype *nmcom_getinfo; /* Get info from nfsnode */
+ nfs_vinvalbuf_ftype *nmcom_vinvalbuf; /* Invalidate buffers */
+};
+
+#endif /* _NFS_MOUNTCOMMON_H_ */
diff --git a/freebsd/sys/nfs/nfs_nfssvc.c b/freebsd/sys/nfs/nfs_nfssvc.c
new file mode 100644
index 0000000..19ac16a
--- /dev/null
+++ b/freebsd/sys/nfs/nfs_nfssvc.c
@@ -0,0 +1,154 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_nfs.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sysproto.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <sys/priv.h>
+#include <sys/proc.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/module.h>
+#include <sys/sysent.h>
+#include <sys/syscall.h>
+#include <sys/sysproto.h>
+
+#include <security/audit/audit.h>
+
+#include <nfs/nfssvc.h>
+
+static struct syscall_helper_data nfssvc_syscalls[] = {
+ SYSCALL_INIT_HELPER(nfssvc),
+ SYSCALL_INIT_LAST
+};
+
+/*
+ * This tiny module simply handles the nfssvc() system call. The other
+ * nfs modules that use the system call register themselves by setting
+ * the nfsd_call_xxx function pointers non-NULL.
+ */
+
+int (*nfsd_call_nfsserver)(struct thread *, struct nfssvc_args *) = NULL;
+int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *) = NULL;
+int (*nfsd_call_nfscl)(struct thread *, struct nfssvc_args *) = NULL;
+int (*nfsd_call_nfsd)(struct thread *, struct nfssvc_args *) = NULL;
+
+/*
+ * Nfs server pseudo system call for the nfsd's
+ */
+int
+sys_nfssvc(struct thread *td, struct nfssvc_args *uap)
+{
+ int error;
+
+ KASSERT(!mtx_owned(&Giant), ("nfssvc(): called with Giant"));
+
+ AUDIT_ARG_CMD(uap->flag);
+
+ /* Allow anyone to get the stats. */
+ if ((uap->flag & ~NFSSVC_GETSTATS) != 0) {
+ error = priv_check(td, PRIV_NFS_DAEMON);
+ if (error != 0)
+ return (error);
+ }
+ error = EINVAL;
+ if ((uap->flag & (NFSSVC_ADDSOCK | NFSSVC_OLDNFSD | NFSSVC_NFSD)) &&
+ nfsd_call_nfsserver != NULL)
+ error = (*nfsd_call_nfsserver)(td, uap);
+ else if ((uap->flag & (NFSSVC_CBADDSOCK | NFSSVC_NFSCBD |
+ NFSSVC_DUMPMNTOPTS | NFSSVC_FORCEDISM)) && nfsd_call_nfscl != NULL)
+ error = (*nfsd_call_nfscl)(td, uap);
+ else if ((uap->flag & (NFSSVC_IDNAME | NFSSVC_GETSTATS |
+ NFSSVC_GSSDADDPORT | NFSSVC_GSSDADDFIRST | NFSSVC_GSSDDELETEALL |
+ NFSSVC_NFSUSERDPORT | NFSSVC_NFSUSERDDELPORT)) &&
+ nfsd_call_nfscommon != NULL)
+ error = (*nfsd_call_nfscommon)(td, uap);
+ else if ((uap->flag & (NFSSVC_NFSDNFSD | NFSSVC_NFSDADDSOCK |
+ NFSSVC_PUBLICFH | NFSSVC_V4ROOTEXPORT | NFSSVC_NOPUBLICFH |
+ NFSSVC_STABLERESTART | NFSSVC_ADMINREVOKE |
+ NFSSVC_DUMPCLIENTS | NFSSVC_DUMPLOCKS | NFSSVC_BACKUPSTABLE |
+ NFSSVC_SUSPENDNFSD | NFSSVC_RESUMENFSD | NFSSVC_PNFSDS)) &&
+ nfsd_call_nfsd != NULL)
+ error = (*nfsd_call_nfsd)(td, uap);
+ if (error == EINTR || error == ERESTART)
+ error = 0;
+ return (error);
+}
+
+/*
+ * Called once to initialize data structures...
+ */
+static int
+nfssvc_modevent(module_t mod, int type, void *data)
+{
+ int error = 0;
+
+ switch (type) {
+ case MOD_LOAD:
+ error = syscall_helper_register(nfssvc_syscalls,
+ SY_THR_STATIC_KLD);
+ break;
+
+ case MOD_UNLOAD:
+ if (nfsd_call_nfsserver != NULL || nfsd_call_nfscommon != NULL
+ || nfsd_call_nfscl != NULL || nfsd_call_nfsd != NULL) {
+ error = EBUSY;
+ break;
+ }
+ syscall_helper_unregister(nfssvc_syscalls);
+ break;
+ default:
+ error = EOPNOTSUPP;
+ break;
+ }
+ return error;
+}
+static moduledata_t nfssvc_mod = {
+ "nfssvc",
+ nfssvc_modevent,
+ NULL,
+};
+DECLARE_MODULE(nfssvc, nfssvc_mod, SI_SUB_VFS, SI_ORDER_ANY);
+
+/* So that loader and kldload(2) can find us, wherever we are.. */
+MODULE_VERSION(nfssvc, 1);
+
diff --git a/freebsd/sys/nfs/nfsdiskless.h b/freebsd/sys/nfs/nfsdiskless.h
new file mode 100644
index 0000000..ff038d0
--- /dev/null
+++ b/freebsd/sys/nfs/nfsdiskless.h
@@ -0,0 +1,116 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsdiskless.h 8.2 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSDISKLESS_H_
+#define _NFSCLIENT_NFSDISKLESS_H_
+
+/*
+ * Structure that must be initialized for a diskless nfs client.
+ * This structure is used by nfs_mountroot() to set up the root vnode,
+ * and to do a partial ifconfig(8) and route(8) so that the critical net
+ * interface can communicate with the server.
+ * The primary bootstrap is expected to fill in the appropriate fields before
+ * starting the kernel.
+ * Currently only works for AF_INET protocols.
+ * NB: All fields are stored in net byte order to avoid hassles with
+ * client/server byte ordering differences.
+ */
+
+/*
+ * I have defined a new structure that can handle an NFS Version 3 file handle
+ * but the kernel still expects the old Version 2 one to be provided. The
+ * changes required in nfs_vfsops.c for using the new are documented there in
+ * comments. (I felt that breaking network booting code by changing this
+ * structure would not be prudent at this time, since almost all servers are
+ * still Version 2 anyhow.)
+ */
+struct nfsv3_diskless {
+ struct ifaliasreq myif; /* Default interface */
+ struct sockaddr_in mygateway; /* Default gateway */
+ struct nfs_args root_args; /* Mount args for root fs */
+ int root_fhsize; /* Size of root file handle */
+ u_char root_fh[NFSX_V3FHMAX]; /* File handle of root dir */
+ struct sockaddr_in root_saddr; /* Address of root server */
+ char root_hostnam[MNAMELEN]; /* Host name for mount pt */
+ long root_time; /* Timestamp of root fs */
+ char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */
+};
+
+/*
+ * Old arguments to mount NFS
+ */
+struct onfs_args {
+ struct sockaddr *addr; /* file server address */
+ int addrlen; /* length of address */
+ int sotype; /* Socket type */
+ int proto; /* and Protocol */
+ u_char *fh; /* File handle to be mounted */
+ int fhsize; /* Size, in bytes, of fh */
+ int flags; /* flags */
+ int wsize; /* write size in bytes */
+ int rsize; /* read size in bytes */
+ int readdirsize; /* readdir size in bytes */
+ int timeo; /* initial timeout in .1 secs */
+ int retrans; /* times to retry send */
+ int maxgrouplist; /* Max. size of group list */
+ int readahead; /* # of blocks to readahead */
+ int leaseterm; /* Term (sec) of lease */
+ int deadthresh; /* Retrans threshold */
+ char *hostname; /* server's name */
+};
+
+struct nfs_diskless {
+ struct ifaliasreq myif; /* Default interface */
+ struct sockaddr_in mygateway; /* Default gateway */
+ struct onfs_args root_args; /* Mount args for root fs */
+ u_char root_fh[NFSX_V2FH]; /* File handle of root dir */
+ struct sockaddr_in root_saddr; /* Address of root server */
+ char root_hostnam[MNAMELEN]; /* Host name for mount pt */
+ long root_time; /* Timestamp of root fs */
+ char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */
+};
+
+#ifdef _KERNEL
+extern struct nfsv3_diskless nfsv3_diskless;
+extern struct nfs_diskless nfs_diskless;
+extern int nfs_diskless_valid;
+void bootpc_init(void);
+void nfs_setup_diskless(void);
+void nfs_parse_options(const char *, struct nfs_args *);
+#endif
+
+#endif
diff --git a/freebsd/sys/nfs/nfsproto.h b/freebsd/sys/nfs/nfsproto.h
new file mode 100644
index 0000000..dfaf768
--- /dev/null
+++ b/freebsd/sys/nfs/nfsproto.h
@@ -0,0 +1,701 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsproto.h 8.2 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSPROTO_H_
+#define _NFS_NFSPROTO_H_
+
+/*
+ * nfs definitions as per the Version 2 and 3 specs
+ */
+
+/*
+ * Constants as defined in the Sun NFS Version 2 and 3 specs.
+ * "NFS: Network File System Protocol Specification" RFC1094
+ * and in the "NFS: Network File System Version 3 Protocol
+ * Specification"
+ */
+
+#define NFS_PORT 2049
+#define NFS_PROG 100003
+#define NFS_VER2 2
+#define NFS_VER3 3
+#define NFS_VER4 4
+
+#define NFS_V2MAXDATA 8192
+#define NFS_MAXDGRAMDATA 16384
+#define NFS_MAXDATA 32768
+#define NFS_MAXPATHLEN 1024
+#define NFS_MAXNAMLEN 255
+#define NFS_MAXPKTHDR 404 /* XXXv4 this needs to be adjust for v4 */
+#define NFS_MAXPACKET (NFS_MAXPKTHDR + NFS_MAXDATA)
+#define NFS_MINPACKET 20
+#define NFS_FABLKSIZE 512 /* Size in bytes of a block wrt fa_blocks */
+
+/* Stat numbers for rpc returns (version 2, 3 and 4) */
+#define NFS_OK 0
+#define NFSERR_PERM 1
+#define NFSERR_NOENT 2
+#define NFSERR_IO 5
+#define NFSERR_NXIO 6
+#define NFSERR_ACCES 13
+#define NFSERR_EXIST 17
+#define NFSERR_XDEV 18 /* Version 3 only */
+#define NFSERR_NODEV 19
+#define NFSERR_NOTDIR 20
+#define NFSERR_ISDIR 21
+#define NFSERR_INVAL 22 /* Version 3 only */
+#define NFSERR_FBIG 27
+#define NFSERR_NOSPC 28
+#define NFSERR_ROFS 30
+#define NFSERR_MLINK 31 /* Version 3 only */
+#define NFSERR_NAMETOL 63
+#define NFSERR_NOTEMPTY 66
+#define NFSERR_DQUOT 69
+#define NFSERR_STALE 70
+#define NFSERR_REMOTE 71 /* Version 3 only */
+#define NFSERR_WFLUSH 99 /* Version 2 only */
+#define NFSERR_BADHANDLE 10001 /* The rest Version 3, 4 only */
+#define NFSERR_NOT_SYNC 10002
+#define NFSERR_BAD_COOKIE 10003
+#define NFSERR_NOTSUPP 10004
+#define NFSERR_TOOSMALL 10005
+#define NFSERR_SERVERFAULT 10006
+#define NFSERR_BADTYPE 10007
+#define NFSERR_JUKEBOX 10008
+#define NFSERR_TRYLATER NFSERR_JUKEBOX
+#define NFSERR_SAME 10009 /* The rest Version 4 only */
+#define NFSERR_DENIED 10010
+#define NFSERR_EXPIRED 10011
+#define NFSERR_LOCKED 10012
+#define NFSERR_GRACE 10013
+#define NFSERR_FHEXPIRED 10014
+#define NFSERR_SHARDE_DENIED 10015
+#define NFSERR_WRONGSEC 10016
+#define NFSERR_CLID_INUSE 10017
+#define NFSERR_RESOURCE 10018
+#define NFSERR_MOVED 10019
+#define NFSERR_NOFILEHANDLE 10020
+#define NFSERR_MINOR_VERS_MISMATCH 10021
+#define NFSERR_STALE_CLIENTID 10022
+#define NFSERR_STALE_STATEID 10023
+#define NFSERR_OLD_STATEID 10024
+#define NFSERR_BAD_STATEID 10025
+#define NFSERR_BAD_SEQID 10026
+#define NFSERR_NOT_SAME 10027
+#define NFSERR_LOCK_RANGE 10028
+#define NFSERR_SYMLINK 10029
+#define NFSERR_READDIR_NOSPC 10030
+#define NFSERR_LEASE_MOVED 10031
+#define NFSERR_ATTRNOTSUPP 10032
+#define NFSERR_NO_GRACE 10033
+#define NFSERR_RECLAIM_BAD 10034
+#define NFSERR_RECLAIM_CONFLICT 10035
+#define NFSERR_BADXDR 10036
+#define NFSERR_LOCKS_HELD 10037
+#define NFSERR_OPENMODE 10038
+#define NFSERR_BADOWNER 10039
+#define NFSERR_BADCHAR 10040
+#define NFSERR_BADNAME 10041
+#define NFSERR_BAD_RANGE 10042
+#define NFSERR_LOCK_NOTSUPP 10043
+#define NFSERR_OP_ILLEGAL 10044
+#define NFSERR_DEADLOCK 10045
+#define NFSERR_FILE_OPEN 10046
+#define NFSERR_STALEWRITEVERF 30001 /* Fake return for nfs_commit() */
+
+
+
+#define NFSERR_RETVOID 0x20000000 /* Return void, not error */
+#define NFSERR_AUTHERR 0x40000000 /* Mark an authentication error */
+#define NFSERR_RETERR 0x80000000 /* Mark an error return for V3 */
+
+/* Sizes in bytes of various nfs rpc components */
+#define NFSX_UNSIGNED 4
+
+/* specific to NFS Version 2 */
+#define NFSX_V2FH 32
+#define NFSX_V2FATTR 68
+#define NFSX_V2SATTR 32
+#define NFSX_V2COOKIE 4
+#define NFSX_V2STATFS 20
+
+/* specific to NFS Version 3 */
+#define NFSX_V3FH (sizeof (fhandle_t)) /* size this server uses */
+#define NFSX_V3FHMAX 64 /* max. allowed by protocol */
+#define NFSX_V3FATTR 84
+#define NFSX_V3SATTR 60 /* max. all fields filled in */
+#define NFSX_V3SRVSATTR (sizeof (struct nfsv3_sattr))
+#define NFSX_V3POSTOPATTR (NFSX_V3FATTR + NFSX_UNSIGNED)
+#define NFSX_V3WCCDATA (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)
+#define NFSX_V3COOKIEVERF 8
+#define NFSX_V3WRITEVERF 8
+#define NFSX_V3CREATEVERF 8
+#define NFSX_V3STATFS 52
+#define NFSX_V3FSINFO 48
+#define NFSX_V3PATHCONF 24
+
+/* specific to NFS Version 4 */
+#define NFSX_V4VERF 8
+#define NFSX_V4FH 128
+#define NFSX_V4STATEID 16
+
+/* variants for both versions */
+#define NFSX_FH(v3) ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \
+ NFSX_V2FH)
+#define NFSX_SRVFH(v3) ((v3) ? NFSX_V3FH : NFSX_V2FH)
+#define NFSX_FATTR(v3) ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR)
+#define NFSX_PREOPATTR(v3) ((v3) ? (7 * NFSX_UNSIGNED) : 0)
+#define NFSX_POSTOPATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0)
+#define NFSX_POSTOPORFATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \
+ NFSX_V2FATTR)
+#define NFSX_WCCDATA(v3) ((v3) ? NFSX_V3WCCDATA : 0)
+#define NFSX_WCCORFATTR(v3) ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR)
+#define NFSX_SATTR(v3) ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR)
+#define NFSX_COOKIEVERF(v3) ((v3) ? NFSX_V3COOKIEVERF : 0)
+#define NFSX_WRITEVERF(v3) ((v3) ? NFSX_V3WRITEVERF : 0)
+#define NFSX_READDIR(v3) ((v3) ? (5 * NFSX_UNSIGNED) : \
+ (2 * NFSX_UNSIGNED))
+#define NFSX_STATFS(v3) ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)
+
+/* nfs rpc procedure numbers (before version mapping) */
+#define NFSPROC_NULL 0
+#define NFSPROC_GETATTR 1
+#define NFSPROC_SETATTR 2
+#define NFSPROC_LOOKUP 3
+#define NFSPROC_ACCESS 4
+#define NFSPROC_READLINK 5
+#define NFSPROC_READ 6
+#define NFSPROC_WRITE 7
+#define NFSPROC_CREATE 8
+#define NFSPROC_MKDIR 9
+#define NFSPROC_SYMLINK 10
+#define NFSPROC_MKNOD 11
+#define NFSPROC_REMOVE 12
+#define NFSPROC_RMDIR 13
+#define NFSPROC_RENAME 14
+#define NFSPROC_LINK 15
+#define NFSPROC_READDIR 16
+#define NFSPROC_READDIRPLUS 17
+#define NFSPROC_FSSTAT 18
+#define NFSPROC_FSINFO 19
+#define NFSPROC_PATHCONF 20
+#define NFSPROC_COMMIT 21
+#define NFSPROC_NOOP 22
+#define NFS_NPROCS 23
+
+/* Actual Version 2 procedure numbers */
+#define NFSV2PROC_NULL 0
+#define NFSV2PROC_GETATTR 1
+#define NFSV2PROC_SETATTR 2
+#define NFSV2PROC_NOOP 3
+#define NFSV2PROC_ROOT NFSV2PROC_NOOP /* Obsolete */
+#define NFSV2PROC_LOOKUP 4
+#define NFSV2PROC_READLINK 5
+#define NFSV2PROC_READ 6
+#define NFSV2PROC_WRITECACHE NFSV2PROC_NOOP /* Obsolete */
+#define NFSV2PROC_WRITE 8
+#define NFSV2PROC_CREATE 9
+#define NFSV2PROC_REMOVE 10
+#define NFSV2PROC_RENAME 11
+#define NFSV2PROC_LINK 12
+#define NFSV2PROC_SYMLINK 13
+#define NFSV2PROC_MKDIR 14
+#define NFSV2PROC_RMDIR 15
+#define NFSV2PROC_READDIR 16
+#define NFSV2PROC_STATFS 17
+
+/* Version 4 procedure numbers */
+#define NFSV4PROC_NULL 0
+#define NFSV4PROC_COMPOUND 1
+
+/* Version 4 operation numbers */
+#define NFSV4OP_ACCESS 3
+#define NFSV4OP_CLOSE 4
+#define NFSV4OP_COMMIT 5
+#define NFSV4OP_CREATE 6
+#define NFSV4OP_DELEGPURGE 7
+#define NFSV4OP_DELEGRETURN 8
+#define NFSV4OP_GETATTR 9
+#define NFSV4OP_GETFH 10
+#define NFSV4OP_LINK 11
+#define NFSV4OP_LOCK 12
+#define NFSV4OP_LOCKT 13
+#define NFSV4OP_LOCKU 14
+#define NFSV4OP_LOOKUP 15
+#define NFSV4OP_LOOKUPP 16
+#define NFSV4OP_NVERIFY 17
+#define NFSV4OP_OPEN 18
+#define NFSV4OP_OPENATTR 19
+#define NFSV4OP_OPEN_CONFIRM 20
+#define NFSV4OP_OPEN_DOWNGRADE 21
+#define NFSV4OP_PUTFH 22
+#define NFSV4OP_PUTPUBFH 23
+#define NFSV4OP_PUTROOTFH 24
+#define NFSV4OP_READ 25
+#define NFSV4OP_READDIR 26
+#define NFSV4OP_READLINK 27
+#define NFSV4OP_REMOVE 28
+#define NFSV4OP_RENAME 29
+#define NFSV4OP_RENEW 30
+#define NFSV4OP_RESTOREFH 31
+#define NFSV4OP_SAVEFH 32
+#define NFSV4OP_SECINFO 33
+#define NFSV4OP_SETATTR 34
+#define NFSV4OP_SETCLIENTID 35
+#define NFSV4OP_SETCLIENTID_CONFIRM 36
+#define NFSV4OP_VERIFY 37
+#define NFSV4OP_WRITE 38
+
+/*
+ * Constants used by the Version 3 protocol for various RPCs
+ */
+#define NFSV3SATTRTIME_DONTCHANGE 0
+#define NFSV3SATTRTIME_TOSERVER 1
+#define NFSV3SATTRTIME_TOCLIENT 2
+
+#define NFSV3ACCESS_READ 0x01
+#define NFSV3ACCESS_LOOKUP 0x02
+#define NFSV3ACCESS_MODIFY 0x04
+#define NFSV3ACCESS_EXTEND 0x08
+#define NFSV3ACCESS_DELETE 0x10
+#define NFSV3ACCESS_EXECUTE 0x20
+
+#define NFSV3WRITE_UNSTABLE 0
+#define NFSV3WRITE_DATASYNC 1
+#define NFSV3WRITE_FILESYNC 2
+
+#define NFSV3CREATE_UNCHECKED 0
+#define NFSV3CREATE_GUARDED 1
+#define NFSV3CREATE_EXCLUSIVE 2
+
+#define NFSV3FSINFO_LINK 0x01
+#define NFSV3FSINFO_SYMLINK 0x02
+#define NFSV3FSINFO_HOMOGENEOUS 0x08
+#define NFSV3FSINFO_CANSETTIME 0x10
+
+/*
+ * Constants used by the Version 4 protocol for various RPCs
+ */
+
+#define NFSV4ACCESS_READ 0x01
+#define NFSV4ACCESS_LOOKUP 0x02
+#define NFSV4ACCESS_MODIFY 0x04
+#define NFSV4ACCESS_EXTEND 0x08
+#define NFSV4ACCESS_DELETE 0x10
+#define NFSV4ACCESS_EXECUTE 0x20
+
+#define NFSV4OPENRES_MLOCK 0x01
+#define NFSV4OPENRES_CONFIRM 0x02
+
+#define NFSV4OPENSHARE_ACCESS_READ 0x01
+#define NFSV4OPENSHARE_ACCESS_WRITE 0x02
+#define NFSV4OPENSHARE_ACCESS_BOTH 0x03
+#define NFSV4OPENSHARE_DENY_NONE 0x00
+#define NFSV4OPENSHARE_DENY_READ 0x01
+#define NFSV4OPENSHARE_DENY_WRITE 0x02
+#define NFSV4OPENSHARE_DENY_BOTH 0x03
+
+/* File types */
+typedef enum {
+ NFNON=0,
+ NFREG=1,
+ NFDIR=2,
+ NFBLK=3,
+ NFCHR=4,
+ NFLNK=5,
+ NFSOCK=6,
+ NFFIFO=7,
+ NFATTRDIR = 8,
+ NFNAMEDATTR = 9,
+ NFBAD = 10,
+} nfstype;
+
+/* NFSv4 claim type */
+typedef enum {
+ NCLNULL = 0,
+ NCLPREV = 1,
+ NCLDELEGCUR = 2,
+ NCLDELEGPREV = 3,
+} nfsv4cltype;
+
+/* Other NFSv4 types */
+typedef enum {
+ NSHUNSTABLE = 0,
+ NSHDATASYNC = 1,
+ NSHFILESYNC = 2,
+} nfsv4stablehow;
+
+typedef enum { OTNOCREATE = 0, OTCREATE = 1 } nfsv4opentype;
+typedef enum { CMUNCHECKED = 0, CMGUARDED = 1, CMEXCLUSIVE = 2 } nfsv4createmode;
+typedef enum { THSERVERTIME = 0, THCLIENTTIME = 1 } nfsv4timehow;
+typedef enum { ODNONE = 0, ODREAD = 1, ODWRITE = 2 } nfsv4opendelegtype;
+
+/* Structs for common parts of the rpc's */
+
+/*
+ * File Handle (32 bytes for version 2), variable up to 64 for version 3.
+ * File Handles of up to NFS_SMALLFH in size are stored directly in the
+ * nfs node, whereas larger ones are malloc'd. (This never happens when
+ * NFS_SMALLFH is set to 64.)
+ * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4.
+ */
+#ifndef NFS_SMALLFH
+#define NFS_SMALLFH 128
+#endif
+union nfsfh {
+ fhandle_t fh_generic;
+ u_char fh_bytes[NFS_SMALLFH];
+};
+typedef union nfsfh nfsfh_t;
+
+struct nfsv2_time {
+ u_int32_t nfsv2_sec;
+ u_int32_t nfsv2_usec;
+};
+typedef struct nfsv2_time nfstime2;
+
+struct nfsv3_time {
+ u_int32_t nfsv3_sec;
+ u_int32_t nfsv3_nsec;
+};
+typedef struct nfsv3_time nfstime3;
+
+/*
+ * Quads are defined as arrays of 2 longs to ensure dense packing for the
+ * protocol and to facilitate xdr conversion.
+ */
+struct nfs_uquad {
+ u_int32_t nfsuquad[2];
+};
+typedef struct nfs_uquad nfsuint64;
+
+/*
+ * Used to convert between two u_longs and a u_quad_t.
+ */
+union nfs_quadconvert {
+ u_int32_t lval[2];
+ u_quad_t qval;
+};
+typedef union nfs_quadconvert nfsquad_t;
+
+/*
+ * NFS Version 3 special file number.
+ */
+struct nfsv3_spec {
+ u_int32_t specdata1;
+ u_int32_t specdata2;
+};
+typedef struct nfsv3_spec nfsv3spec;
+
+/*
+ * NFS Version 4 bitmap.
+ */
+struct nfsv4_bitmap {
+ uint32_t bmlen;
+ uint32_t *bmval;
+};
+typedef struct nfsv4_bitmap nfsv4bitmap;
+
+struct nfsv4_changeinfo {
+ u_int ciatomic;
+ uint64_t cibefore;
+ uint64_t ciafter;
+};
+typedef struct nfsv4_changeinfo nfsv4changeinfo;
+
+/*
+ * File attributes and setable attributes. These structures cover both
+ * NFS version 2 and the version 3 protocol. Note that the union is only
+ * used so that one pointer can refer to both variants. These structures
+ * go out on the wire and must be densely packed, so no quad data types
+ * are used. (all fields are longs or u_longs or structures of same)
+ * NB: You can't do sizeof(struct nfs_fattr), you must use the
+ * NFSX_FATTR(v3) macro.
+ */
+struct nfs_fattr {
+ u_int32_t fa_type;
+ u_int32_t fa_mode;
+ u_int32_t fa_nlink;
+ u_int32_t fa_uid;
+ u_int32_t fa_gid;
+ union {
+ struct {
+ u_int32_t nfsv2fa_size;
+ u_int32_t nfsv2fa_blocksize;
+ u_int32_t nfsv2fa_rdev;
+ u_int32_t nfsv2fa_blocks;
+ u_int32_t nfsv2fa_fsid;
+ u_int32_t nfsv2fa_fileid;
+ nfstime2 nfsv2fa_atime;
+ nfstime2 nfsv2fa_mtime;
+ nfstime2 nfsv2fa_ctime;
+ } fa_nfsv2;
+ struct {
+ nfsuint64 nfsv3fa_size;
+ nfsuint64 nfsv3fa_used;
+ nfsv3spec nfsv3fa_rdev;
+ nfsuint64 nfsv3fa_fsid;
+ nfsuint64 nfsv3fa_fileid;
+ nfstime3 nfsv3fa_atime;
+ nfstime3 nfsv3fa_mtime;
+ nfstime3 nfsv3fa_ctime;
+ } fa_nfsv3;
+ } fa_un;
+};
+
+/* and some ugly defines for accessing union components */
+#define fa2_size fa_un.fa_nfsv2.nfsv2fa_size
+#define fa2_blocksize fa_un.fa_nfsv2.nfsv2fa_blocksize
+#define fa2_rdev fa_un.fa_nfsv2.nfsv2fa_rdev
+#define fa2_blocks fa_un.fa_nfsv2.nfsv2fa_blocks
+#define fa2_fsid fa_un.fa_nfsv2.nfsv2fa_fsid
+#define fa2_fileid fa_un.fa_nfsv2.nfsv2fa_fileid
+#define fa2_atime fa_un.fa_nfsv2.nfsv2fa_atime
+#define fa2_mtime fa_un.fa_nfsv2.nfsv2fa_mtime
+#define fa2_ctime fa_un.fa_nfsv2.nfsv2fa_ctime
+#define fa3_size fa_un.fa_nfsv3.nfsv3fa_size
+#define fa3_used fa_un.fa_nfsv3.nfsv3fa_used
+#define fa3_rdev fa_un.fa_nfsv3.nfsv3fa_rdev
+#define fa3_fsid fa_un.fa_nfsv3.nfsv3fa_fsid
+#define fa3_fileid fa_un.fa_nfsv3.nfsv3fa_fileid
+#define fa3_atime fa_un.fa_nfsv3.nfsv3fa_atime
+#define fa3_mtime fa_un.fa_nfsv3.nfsv3fa_mtime
+#define fa3_ctime fa_un.fa_nfsv3.nfsv3fa_ctime
+
+struct nfsv4_fattr {
+ u_int fa4_valid;
+ nfstype fa4_type;
+ off_t fa4_size;
+ uint64_t fa4_fsid_major;
+ uint64_t fa4_fsid_minor;
+ uint64_t fa4_fileid;
+ mode_t fa4_mode;
+ nlink_t fa4_nlink;
+ uid_t fa4_uid;
+ gid_t fa4_gid;
+ uint32_t fa4_rdev_major;
+ uint32_t fa4_rdev_minor;
+ struct timespec fa4_atime;
+ struct timespec fa4_btime;
+ struct timespec fa4_ctime;
+ struct timespec fa4_mtime;
+ uint64_t fa4_maxread;
+ uint64_t fa4_maxwrite;
+ uint64_t fa4_ffree;
+ uint64_t fa4_ftotal;
+ uint32_t fa4_maxname;
+ uint64_t fa4_savail;
+ uint64_t fa4_sfree;
+ uint64_t fa4_stotal;
+ uint64_t fa4_changeid;
+ uint32_t fa4_lease_time;
+ uint64_t fa4_maxfilesize;
+};
+
+/* Flags for fa4_valid */
+#define FA4V_SIZE 0x00000001
+#define FA4V_FSID 0x00000002
+#define FA4V_FILEID 0x00000004
+#define FA4V_MODE 0x00000008
+#define FA4V_NLINK 0x00000010
+#define FA4V_UID 0x00000020
+#define FA4V_GID 0x00000040
+#define FA4V_RDEV 0x00000080
+#define FA4V_ATIME 0x00000100
+#define FA4V_BTIME 0x00000200
+#define FA4V_CTIME 0x00000400
+#define FA4V_MTIME 0x00000800
+#define FA4V_MAXREAD 0x00001000
+#define FA4V_MAXWRITE 0x00002000
+#define FA4V_TYPE 0x00004000
+#define FA4V_FFREE 0x00008000
+#define FA4V_FTOTAL 0x00010000
+#define FA4V_MAXNAME 0x00020000
+#define FA4V_SAVAIL 0x00040000
+#define FA4V_SFREE 0x00080000
+#define FA4V_STOTAL 0x00100000
+#define FA4V_CHANGEID 0x00200000
+#define FA4V_LEASE_TIME 0x00400000
+#define FA4V_MAXFILESIZE 0x00800000
+#define FA4V_ACL 0x01000000
+
+/* Offsets into bitmask */
+#define FA4_SUPPORTED_ATTRS 0
+#define FA4_TYPE 1
+#define FA4_FH_EXPIRE_TYPE 2
+#define FA4_CHANGE 3
+#define FA4_SIZE 4
+#define FA4_LINK_SUPPORT 5
+#define FA4_SYMLINK_SUPPORT 6
+#define FA4_NAMED_ATTR 7
+#define FA4_FSID 8
+#define FA4_UNIQUE_HANDLES 9
+#define FA4_LEASE_TIME 10
+#define FA4_RDATTR_ERROR 11
+#define FA4_ACL 12
+#define FA4_ACLSUPPORT 13
+#define FA4_ARCHIVE 14
+#define FA4_CANSETTIME 15
+#define FA4_CASE_INSENSITIVE 16
+#define FA4_CASE_PRESERVING 17
+#define FA4_CHOWN_RESTRICTED 18
+#define FA4_FILEHANDLE 19
+#define FA4_FILEID 20
+#define FA4_FILES_AVAIL 21
+#define FA4_FILES_FREE 22
+#define FA4_FILES_TOTAL 23
+#define FA4_FS_LOCATIONS 24
+#define FA4_HIDDEN 25
+#define FA4_HOMOGENEOUS 26
+#define FA4_MAXFILESIZE 27
+#define FA4_MAXLINK 28
+#define FA4_MAXNAME 29
+#define FA4_MAXREAD 30
+#define FA4_MAXWRITE 31
+#define FA4_MIMETYPE 32
+#define FA4_MODE 33
+#define FA4_NO_TRUNC 34
+#define FA4_NUMLINKS 35
+#define FA4_OWNER 36
+#define FA4_OWNER_GROUP 37
+#define FA4_QUOTA_HARD 38
+#define FA4_QUOTA_SOFT 39
+#define FA4_QUOTA_USED 40
+#define FA4_RAWDEV 41
+#define FA4_SPACE_AVAIL 42
+#define FA4_SPACE_FREE 43
+#define FA4_SPACE_TOTAL 44
+#define FA4_SPACE_USED 45
+#define FA4_SYSTEM 46
+#define FA4_TIME_ACCESS 47
+#define FA4_TIME_ACCESS_SET 48
+#define FA4_TIME_BACKUP 49
+#define FA4_TIME_CREATE 50
+#define FA4_TIME_DELTA 51
+#define FA4_TIME_METADATA 52
+#define FA4_TIME_MODIFY 53
+#define FA4_TIME_MODIFY_SET 54
+#define FA4_ATTR_MAX 55
+
+/* Macros for v4 fattr manipulation */
+#define FA4_SET(n, p) ((p)[(n)/32] |= (1 << ((n) % 32)))
+#define FA4_CLR(n, p) ((p)[(n)/32] &= ~(1 << ((n) % 32)))
+#define FA4_ISSET(n, p) ((p)[(n)/32] & (1 << ((n) % 32)))
+#define FA4_ZERO(p) bzero((p), 8)
+#define FA4_SKIP(p) ((p) += 2)
+
+struct nfsv2_sattr {
+ u_int32_t sa_mode;
+ u_int32_t sa_uid;
+ u_int32_t sa_gid;
+ u_int32_t sa_size;
+ nfstime2 sa_atime;
+ nfstime2 sa_mtime;
+};
+
+/*
+ * NFS Version 3 sattr structure for the new node creation case.
+ */
+struct nfsv3_sattr {
+ u_int32_t sa_modetrue;
+ u_int32_t sa_mode;
+ u_int32_t sa_uidfalse;
+ u_int32_t sa_gidfalse;
+ u_int32_t sa_sizefalse;
+ u_int32_t sa_atimetype;
+ nfstime3 sa_atime;
+ u_int32_t sa_mtimetype;
+ nfstime3 sa_mtime;
+};
+
+struct nfs_statfs {
+ union {
+ struct {
+ u_int32_t nfsv2sf_tsize;
+ u_int32_t nfsv2sf_bsize;
+ u_int32_t nfsv2sf_blocks;
+ u_int32_t nfsv2sf_bfree;
+ u_int32_t nfsv2sf_bavail;
+ } sf_nfsv2;
+ struct {
+ nfsuint64 nfsv3sf_tbytes;
+ nfsuint64 nfsv3sf_fbytes;
+ nfsuint64 nfsv3sf_abytes;
+ nfsuint64 nfsv3sf_tfiles;
+ nfsuint64 nfsv3sf_ffiles;
+ nfsuint64 nfsv3sf_afiles;
+ u_int32_t nfsv3sf_invarsec;
+ } sf_nfsv3;
+ } sf_un;
+};
+
+#define sf_tsize sf_un.sf_nfsv2.nfsv2sf_tsize
+#define sf_bsize sf_un.sf_nfsv2.nfsv2sf_bsize
+#define sf_blocks sf_un.sf_nfsv2.nfsv2sf_blocks
+#define sf_bfree sf_un.sf_nfsv2.nfsv2sf_bfree
+#define sf_bavail sf_un.sf_nfsv2.nfsv2sf_bavail
+#define sf_tbytes sf_un.sf_nfsv3.nfsv3sf_tbytes
+#define sf_fbytes sf_un.sf_nfsv3.nfsv3sf_fbytes
+#define sf_abytes sf_un.sf_nfsv3.nfsv3sf_abytes
+#define sf_tfiles sf_un.sf_nfsv3.nfsv3sf_tfiles
+#define sf_ffiles sf_un.sf_nfsv3.nfsv3sf_ffiles
+#define sf_afiles sf_un.sf_nfsv3.nfsv3sf_afiles
+#define sf_invarsec sf_un.sf_nfsv3.nfsv3sf_invarsec
+
+struct nfsv3_fsinfo {
+ u_int32_t fs_rtmax;
+ u_int32_t fs_rtpref;
+ u_int32_t fs_rtmult;
+ u_int32_t fs_wtmax;
+ u_int32_t fs_wtpref;
+ u_int32_t fs_wtmult;
+ u_int32_t fs_dtpref;
+ nfsuint64 fs_maxfilesize;
+ nfstime3 fs_timedelta;
+ u_int32_t fs_properties;
+};
+
+struct nfsv3_pathconf {
+ u_int32_t pc_linkmax;
+ u_int32_t pc_namemax;
+ u_int32_t pc_notrunc;
+ u_int32_t pc_chownrestricted;
+ u_int32_t pc_caseinsensitive;
+ u_int32_t pc_casepreserving;
+};
+
+#endif
diff --git a/freebsd/sys/nfs/nfssvc.h b/freebsd/sys/nfs/nfssvc.h
new file mode 100644
index 0000000..4d0ef56
--- /dev/null
+++ b/freebsd/sys/nfs/nfssvc.h
@@ -0,0 +1,85 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NFS_NFSSVC_H_
+#define _NFS_NFSSVC_H_
+
+/*
+ * Flags for nfssvc() system call.
+ */
+#define NFSSVC_OLDNFSD 0x004
+#define NFSSVC_ADDSOCK 0x008
+#define NFSSVC_NFSD 0x010
+
+/*
+ * and ones for nfsv4.
+ */
+#define NFSSVC_NOPUBLICFH 0x00000020
+#define NFSSVC_STABLERESTART 0x00000040
+#define NFSSVC_NFSDNFSD 0x00000080
+#define NFSSVC_NFSDADDSOCK 0x00000100
+#define NFSSVC_IDNAME 0x00000200
+#define NFSSVC_GSSDDELETEALL 0x00000400
+#define NFSSVC_GSSDADDPORT 0x00000800
+#define NFSSVC_NFSUSERDPORT 0x00001000
+#define NFSSVC_NFSUSERDDELPORT 0x00002000
+#define NFSSVC_V4ROOTEXPORT 0x00004000
+#define NFSSVC_ADMINREVOKE 0x00008000
+#define NFSSVC_DUMPCLIENTS 0x00010000
+#define NFSSVC_DUMPLOCKS 0x00020000
+#define NFSSVC_GSSDADDFIRST 0x00040000
+#define NFSSVC_PUBLICFH 0x00080000
+#define NFSSVC_NFSCBD 0x00100000
+#define NFSSVC_CBADDSOCK 0x00200000
+#define NFSSVC_GETSTATS 0x00400000
+#define NFSSVC_BACKUPSTABLE 0x00800000
+#define NFSSVC_ZEROCLTSTATS 0x01000000 /* modifier for GETSTATS */
+#define NFSSVC_ZEROSRVSTATS 0x02000000 /* modifier for GETSTATS */
+#define NFSSVC_SUSPENDNFSD 0x04000000
+#define NFSSVC_RESUMENFSD 0x08000000
+#define NFSSVC_DUMPMNTOPTS 0x10000000
+#define NFSSVC_NEWSTRUCT 0x20000000
+#define NFSSVC_FORCEDISM 0x40000000
+#define NFSSVC_PNFSDS 0x80000000
+
+/* Argument structure for NFSSVC_DUMPMNTOPTS. */
+struct nfscl_dumpmntopts {
+ char *ndmnt_fname; /* File Name */
+ size_t ndmnt_blen; /* Size of buffer */
+ void *ndmnt_buf; /* and the buffer */
+};
+
+#endif /* _NFS_NFSSVC_H */
diff --git a/freebsd/sys/nfs/xdr_subs.h b/freebsd/sys/nfs/xdr_subs.h
new file mode 100644
index 0000000..829711e
--- /dev/null
+++ b/freebsd/sys/nfs/xdr_subs.h
@@ -0,0 +1,93 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+
+#ifndef _NFS_XDR_SUBS_H_
+#define _NFS_XDR_SUBS_H_
+
+/*
+ * Macros used for conversion to/from xdr representation by nfs...
+ * These use the MACHINE DEPENDENT routines ntohl, htonl
+ * As defined by "XDR: External Data Representation Standard" RFC1014
+ *
+ * To simplify the implementation, we use ntohl/htonl even on big-endian
+ * machines, and count on them being `#define'd away. Some of these
+ * might be slightly more efficient as quad_t copies on a big-endian,
+ * but we cannot count on their alignment anyway.
+ */
+
+#define fxdr_unsigned(t, v) ((t)ntohl((int32_t)(v)))
+#define txdr_unsigned(v) (htonl((int32_t)(v)))
+
+#define fxdr_nfsv2time(f, t) \
+do { \
+ (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
+ if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
+ (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
+ else \
+ (t)->tv_nsec = 0; \
+} while (0)
+#define txdr_nfsv2time(f, t) \
+do { \
+ ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
+ if ((f)->tv_nsec != -1) \
+ ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
+ else \
+ ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
+} while (0)
+
+#define fxdr_nfsv3time(f, t) \
+do { \
+ (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
+ (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
+} while (0)
+#define txdr_nfsv3time(f, t) \
+do { \
+ ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
+ ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
+} while (0)
+
+#define fxdr_hyper(f) \
+ ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) | \
+ (u_quad_t)(ntohl(((u_int32_t *)(f))[1])))
+#define txdr_hyper(f, t) \
+do { \
+ ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32)); \
+ ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff)); \
+} while (0)
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfs.h b/freebsd/sys/nfsclient/nfs.h
new file mode 100644
index 0000000..ab50d89
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfs.h
@@ -0,0 +1,295 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfs.h 8.4 (Berkeley) 5/1/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFS_H_
+#define _NFSCLIENT_NFS_H_
+
+#ifdef _KERNEL
+#include "opt_nfs.h"
+#endif
+
+#include <nfsclient/nfsargs.h>
+
+/*
+ * Tunable constants for nfs
+ */
+
+#define NFS_TICKINTVL 10 /* Desired time for a tick (msec) */
+#define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
+#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
+#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
+#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
+#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
+#define NFS_MAXREXMIT 100 /* Stop counting after this many */
+#define NFS_RETRANS 10 /* Num of retrans for UDP soft mounts */
+#define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */
+#define NFS_MAXGRPS 16 /* Max. size of groups list */
+#ifndef NFS_MINATTRTIMO
+#define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */
+#endif
+#ifndef NFS_MAXATTRTIMO
+#define NFS_MAXATTRTIMO 60
+#endif
+#ifndef NFS_MINDIRATTRTIMO
+#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */
+#endif
+#ifndef NFS_MAXDIRATTRTIMO
+#define NFS_MAXDIRATTRTIMO 60
+#endif
+#ifndef NFS_ACCESSCACHESIZE
+#define NFS_ACCESSCACHESIZE 8 /* Per-node access cache entries */
+#endif
+#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
+#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
+#define NFS_READDIRSIZE 8192 /* Def. readdir size */
+#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
+#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
+#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */
+#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
+#ifdef _KERNEL
+#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
+#endif
+#define NFS_MAXDEADTHRESH 9 /* How long till we say 'server not responding' */
+
+/*
+ * Oddballs
+ */
+#define NFS_CMPFH(n, f, s) \
+ ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
+#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
+#define NFS_ISV4(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV4)
+
+#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
+#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
+#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
+#define NFSSTA_WANTSND 0x02000000 /* Want above */
+#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */
+#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */
+
+
+/*
+ * XXX to allow amd to include nfs.h without nfsproto.h
+ */
+#ifdef NFS_NPROCS
+#include <nfsclient/nfsstats.h>
+#endif
+
+/*
+ * vfs.oldnfs sysctl(3) identifiers
+ */
+#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
+
+#ifdef _KERNEL
+
+#ifdef MALLOC_DECLARE
+MALLOC_DECLARE(M_NFSDIROFF);
+MALLOC_DECLARE(M_NFSDIRECTIO);
+#endif
+
+extern struct uma_zone *nfsmount_zone;
+
+extern struct nfsstats nfsstats;
+extern struct mtx nfs_iod_mtx;
+extern struct task nfs_nfsiodnew_task;
+
+extern int nfs_numasync;
+extern unsigned int nfs_iodmax;
+extern int nfs_pbuf_freecnt;
+extern int nfs_ticks;
+
+/* Data constants in XDR form */
+extern u_int32_t nfs_true, nfs_false, nfs_xdrneg1;
+extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers;
+extern u_int32_t rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr;
+
+extern int nfsv3_procid[NFS_NPROCS];
+
+/*
+ * Socket errors ignored for connectionless sockets??
+ * For now, ignore them all
+ */
+#define NFSIGNORE_SOERROR(s, e) \
+ ((e) != EINTR && (e) != EIO && \
+ (e) != ERESTART && (e) != EWOULDBLOCK && \
+ ((s) & PR_CONNREQUIRED) == 0)
+
+struct nfsmount;
+
+struct buf;
+struct socket;
+struct uio;
+struct vattr;
+
+/*
+ * Pointers to ops that differ from v3 to v4
+ */
+struct nfs_rpcops {
+ int (*nr_readrpc)(struct vnode *vp, struct uio *uiop,
+ struct ucred *cred);
+ int (*nr_writerpc)(struct vnode *vp, struct uio *uiop,
+ struct ucred *cred, int *iomode, int *must_commit);
+ int (*nr_writebp)(struct buf *bp, int force, struct thread *td);
+ int (*nr_readlinkrpc)(struct vnode *vp, struct uio *uiop,
+ struct ucred *cred);
+ void (*nr_invaldir)(struct vnode *vp);
+ int (*nr_commit)(struct vnode *vp, u_quad_t offset, int cnt,
+ struct ucred *cred, struct thread *td);
+};
+
+/*
+ * Defines for WebNFS
+ */
+
+#define WEBNFS_ESC_CHAR '%'
+#define WEBNFS_SPECCHAR_START 0x80
+
+#define WEBNFS_NATIVE_CHAR 0x80
+/*
+ * ..
+ * Possibly more here in the future.
+ */
+
+/*
+ * Macro for converting escape characters in WebNFS pathnames.
+ * Should really be in libkern.
+ */
+
+#define HEXTOC(c) \
+ ((c) >= 'a' ? ((c) - ('a' - 10)) : \
+ ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
+#define HEXSTRTOI(p) \
+ ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
+
+/* nfs_sigintr() helper, when 'rep' has all we need */
+#define NFS_SIGREP(rep) nfs_sigintr((rep)->r_nmp, (rep), (rep)->r_td)
+
+#ifdef NFS_DEBUG
+
+extern int nfs_debug;
+#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
+#define NFS_DEBUG_WG 2 /* server write gathering */
+#define NFS_DEBUG_RC 4 /* server request caching */
+
+#define NFS_DPF(cat, args) \
+ do { \
+ if (nfs_debug & NFS_DEBUG_##cat) printf args; \
+ } while (0)
+
+#else
+
+#define NFS_DPF(cat, args)
+
+#endif
+
+/*
+ * On fast networks, the estimator will try to reduce the
+ * timeout lower than the latency of the server's disks,
+ * which results in too many timeouts, so cap the lower
+ * bound.
+ */
+#define NFS_MINRTO (NFS_HZ >> 2)
+
+/*
+ * Keep the RTO from increasing to unreasonably large values
+ * when a server is not responding.
+ */
+#define NFS_MAXRTO (20 * NFS_HZ)
+
+enum nfs_rto_timer_t {
+ NFS_DEFAULT_TIMER,
+ NFS_GETATTR_TIMER,
+ NFS_LOOKUP_TIMER,
+ NFS_READ_TIMER,
+ NFS_WRITE_TIMER,
+};
+#define NFS_MAX_TIMER (NFS_WRITE_TIMER)
+
+#define NFS_INITRTT (NFS_HZ << 3)
+
+vfs_init_t nfs_init;
+vfs_uninit_t nfs_uninit;
+int nfs_mountroot(struct mount *mp);
+
+void nfs_purgecache(struct vnode *);
+int nfs_vinvalbuf(struct vnode *, int, struct thread *, int);
+int nfs_readrpc(struct vnode *, struct uio *, struct ucred *);
+int nfs_writerpc(struct vnode *, struct uio *, struct ucred *, int *,
+ int *);
+int nfs_commit(struct vnode *vp, u_quad_t offset, int cnt,
+ struct ucred *cred, struct thread *td);
+int nfs_readdirrpc(struct vnode *, struct uio *, struct ucred *);
+void nfs_nfsiodnew(void);
+void nfs_nfsiodnew_tq(__unused void *, int);
+int nfs_asyncio(struct nfsmount *, struct buf *, struct ucred *, struct thread *);
+int nfs_doio(struct vnode *, struct buf *, struct ucred *, struct thread *);
+void nfs_doio_directwrite (struct buf *);
+int nfs_readlinkrpc(struct vnode *, struct uio *, struct ucred *);
+int nfs_sigintr(struct nfsmount *, struct thread *);
+int nfs_readdirplusrpc(struct vnode *, struct uio *, struct ucred *);
+int nfs_request(struct vnode *, struct mbuf *, int, struct thread *,
+ struct ucred *, struct mbuf **, struct mbuf **, caddr_t *);
+int nfs_loadattrcache(struct vnode **, struct mbuf **, caddr_t *,
+ struct vattr *, int);
+int nfsm_mbuftouio(struct mbuf **, struct uio *, int, caddr_t *);
+void nfs_nhinit(void);
+void nfs_nhuninit(void);
+int nfs_nmcancelreqs(struct nfsmount *);
+void nfs_timer(void*);
+
+int nfs_connect(struct nfsmount *);
+void nfs_disconnect(struct nfsmount *);
+void nfs_safedisconnect(struct nfsmount *);
+int nfs_getattrcache(struct vnode *, struct vattr *);
+int nfs_iosize(struct nfsmount *nmp);
+int nfsm_strtmbuf(struct mbuf **, char **, const char *, long);
+int nfs_bioread(struct vnode *, struct uio *, int, struct ucred *);
+int nfsm_uiotombuf(struct uio *, struct mbuf **, int, caddr_t *);
+void nfs_clearcommit(struct mount *);
+int nfs_writebp(struct buf *, int, struct thread *);
+int nfs_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
+ struct thread *);
+int nfs_meta_setsize (struct vnode *, struct ucred *,
+ struct thread *, u_quad_t);
+
+void nfs_set_sigmask(struct thread *td, sigset_t *oldset);
+void nfs_restore_sigmask(struct thread *td, sigset_t *set);
+int nfs_msleep(struct thread *td, void *ident, struct mtx *mtx,
+ int priority, char *wmesg, int timo);
+
+#endif /* _KERNEL */
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfsargs.h b/freebsd/sys/nfsclient/nfsargs.h
new file mode 100644
index 0000000..4635694
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfsargs.h
@@ -0,0 +1,106 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfs.h 8.4 (Berkeley) 5/1/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSARGS_H_
+#define _NFSCLIENT_NFSARGS_H_
+
+/*
+ * Arguments to mount NFS
+ */
+#define NFS_ARGSVERSION 3 /* change when nfs_args changes */
+struct nfs_args {
+ int version; /* args structure version number */
+ struct sockaddr *addr; /* file server address */
+ int addrlen; /* length of address */
+ int sotype; /* Socket type */
+ int proto; /* and Protocol */
+ u_char *fh; /* File handle to be mounted */
+ int fhsize; /* Size, in bytes, of fh */
+ int flags; /* flags */
+ int wsize; /* write size in bytes */
+ int rsize; /* read size in bytes */
+ int readdirsize; /* readdir size in bytes */
+ int timeo; /* initial timeout in .1 secs */
+ int retrans; /* times to retry send */
+ int maxgrouplist; /* Max. size of group list */
+ int readahead; /* # of blocks to readahead */
+ int wcommitsize; /* Max. write commit size in bytes */
+ int deadthresh; /* Retrans threshold */
+ char *hostname; /* server's name */
+ int acregmin; /* cache attrs for reg files min time */
+ int acregmax; /* cache attrs for reg files max time */
+ int acdirmin; /* cache attrs for dirs min time */
+ int acdirmax; /* cache attrs for dirs max time */
+};
+
+/*
+ * NFS mount option flags
+ */
+#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
+#define NFSMNT_WSIZE 0x00000002 /* set write size */
+#define NFSMNT_RSIZE 0x00000004 /* set read size */
+#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
+#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
+#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
+#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
+#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
+#define NFSMNT_ONEOPENOWN 0x00000100 /* Use one OpenOwner for NFSv4.1 */
+#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
+#define NFSMNT_KERB 0x00000400 /* Use RPCSEC_GSS/Krb5 */
+#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
+#define NFSMNT_WCOMMITSIZE 0x00001000 /* set max write commit size */
+#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
+#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
+#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
+#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
+#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
+#define NFSMNT_ACREGMIN 0x00040000
+#define NFSMNT_ACREGMAX 0x00080000
+#define NFSMNT_ACDIRMIN 0x00100000
+#define NFSMNT_ACDIRMAX 0x00200000
+#define NFSMNT_NOLOCKD 0x00400000 /* Locks are local */
+#define NFSMNT_NFSV4 0x00800000 /* Use NFS Version 4 protocol */
+#define NFSMNT_HASWRITEVERF 0x01000000 /* NFSv4 Write verifier */
+#define NFSMNT_INTEGRITY 0x02000000 /* Use integrity with RPCSEC_GSS */
+#define NFSMNT_PRIVACY 0x04000000 /* Use privacy with RPCSEC_GSS */
+#define NFSMNT_ALLGSSNAME 0x08000000 /* Use principal for all accesses */
+#define NFSMNT_STRICT3530 0x10000000 /* Adhere strictly to RFC3530 */
+#define NFSMNT_NOCTO 0x20000000 /* Don't flush attrcache on open */
+#define NFSMNT_PNFS 0x40000000 /* Enable pNFS support */
+#define NFSMNT_NONCONTIGWR 0x80000000 /* Enable non-contiguous writes */
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfsm_subs.h b/freebsd/sys/nfsclient/nfsm_subs.h
new file mode 100644
index 0000000..b918e78
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfsm_subs.h
@@ -0,0 +1,180 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSM_SUBS_H_
+#define _NFSCLIENT_NFSM_SUBS_H_
+
+#include <nfs/nfs_common.h>
+
+#define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
+
+struct ucred;
+struct vnode;
+
+/*
+ * These macros do strange and peculiar things to mbuf chains for
+ * the assistance of the nfs code. To attempt to use them for any
+ * other purpose will be dangerous. (they make weird assumptions)
+ */
+
+/*
+ * First define what the actual subs. return
+ */
+u_int32_t nfs_xid_gen(void);
+
+/* *********************************** */
+/* Request generation phase macros */
+
+int nfsm_fhtom_xx(struct vnode *v, int v3, struct mbuf **mb,
+ caddr_t *bpos);
+void nfsm_v3attrbuild_xx(struct vattr *va, int full, struct mbuf **mb,
+ caddr_t *bpos);
+int nfsm_strtom_xx(const char *a, int s, int m, struct mbuf **mb,
+ caddr_t *bpos);
+
+#define nfsm_bcheck(t1, mreq) \
+do { \
+ if (t1) { \
+ error = t1; \
+ m_freem(mreq); \
+ goto nfsmout; \
+ } \
+} while (0)
+
+#define nfsm_fhtom(v, v3) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_fhtom_xx((v), (v3), &mb, &bpos); \
+ nfsm_bcheck(t1, mreq); \
+} while (0)
+
+/* If full is true, set all fields, otherwise just set mode and time fields */
+#define nfsm_v3attrbuild(a, full) \
+ nfsm_v3attrbuild_xx(a, full, &mb, &bpos)
+
+#define nfsm_uiotom(p, s) \
+do { \
+ int t1; \
+ t1 = nfsm_uiotombuf((p), &mb, (s), &bpos); \
+ nfsm_bcheck(t1, mreq); \
+} while (0)
+
+#define nfsm_strtom(a, s, m) \
+do { \
+ int t1; \
+ t1 = nfsm_strtom_xx((a), (s), (m), &mb, &bpos); \
+ nfsm_bcheck(t1, mreq); \
+} while (0)
+
+/* *********************************** */
+/* Send the request */
+
+#define nfsm_request(v, t, p, c) \
+do { \
+ sigset_t oldset; \
+ nfs_set_sigmask(p, &oldset); \
+ error = nfs_request((v), mreq, (t), (p), (c), &mrep, &md, &dpos); \
+ nfs_restore_sigmask(p, &oldset); \
+ if (error != 0) { \
+ if (error & NFSERR_RETERR) \
+ error &= ~NFSERR_RETERR; \
+ else \
+ goto nfsmout; \
+ } \
+} while (0)
+
+/* *********************************** */
+/* Reply interpretation phase macros */
+
+int nfsm_mtofh_xx(struct vnode *d, struct vnode **v, int v3, int *f,
+ struct mbuf **md, caddr_t *dpos);
+int nfsm_getfh_xx(nfsfh_t **f, int *s, int v3, struct mbuf **md,
+ caddr_t *dpos);
+int nfsm_loadattr_xx(struct vnode **v, struct vattr *va, struct mbuf **md,
+ caddr_t *dpos);
+int nfsm_postop_attr_xx(struct vnode **v, int *f, struct vattr *va,
+ struct mbuf **md, caddr_t *dpos);
+int nfsm_wcc_data_xx(struct vnode **v, int *f, struct mbuf **md,
+ caddr_t *dpos);
+
+#define nfsm_mtofh(d, v, v3, f) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_mtofh_xx((d), &(v), (v3), &(f), &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#define nfsm_getfh(f, s, v3) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_getfh_xx(&(f), &(s), (v3), &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#define nfsm_loadattr(v, a) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_loadattr_xx(&v, a, &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#define nfsm_postop_attr(v, f) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_postop_attr_xx(&v, &f, NULL, &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#define nfsm_postop_attr_va(v, f, va) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_postop_attr_xx(&v, &f, va, &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+/* Used as (f) for nfsm_wcc_data() */
+#define NFSV3_WCCRATTR 0
+#define NFSV3_WCCCHK 1
+
+#define nfsm_wcc_data(v, f) \
+do { \
+ int32_t t1; \
+ t1 = nfsm_wcc_data_xx(&v, &f, &md, &dpos); \
+ nfsm_dcheck(t1, mrep); \
+} while (0)
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfsmount.h b/freebsd/sys/nfsclient/nfsmount.h
new file mode 100644
index 0000000..b048c10
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfsmount.h
@@ -0,0 +1,132 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsmount.h 8.3 (Berkeley) 3/30/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSMOUNT_H_
+#define _NFSCLIENT_NFSMOUNT_H_
+
+#include <sys/socket.h>
+
+#include <nfs/nfs_mountcommon.h>
+
+#include <rpc/types.h>
+#include <rpc/auth.h>
+#include <rpc/clnt.h>
+#include <rpc/rpcsec_gss.h>
+
+/*
+ * Mount structure.
+ * One allocated on every NFS mount.
+ * Holds NFS specific information for mount.
+ */
+struct nfsmount {
+ struct nfsmount_common nm_com; /* Common fields for nlm */
+ int nm_numgrps; /* Max. size of groupslist */
+ u_char nm_fh[NFSX_V4FH]; /* File handle of root dir */
+ int nm_fhsize; /* Size of root file handle */
+ int nm_sotype; /* Type of socket */
+ int nm_soproto; /* and protocol */
+ int nm_soflags; /* pr_flags for socket protocol */
+ struct sockaddr *nm_nam; /* Addr of server */
+ int nm_deadthresh; /* Threshold of timeouts-->dead server*/
+ int nm_rsize; /* Max size of read rpc */
+ int nm_wsize; /* Max size of write rpc */
+ int nm_readdirsize; /* Size of a readdir rpc */
+ int nm_readahead; /* Num. of blocks to readahead */
+ int nm_wcommitsize; /* Max size of commit for write */
+ int nm_acdirmin; /* Directory attr cache min lifetime */
+ int nm_acdirmax; /* Directory attr cache max lifetime */
+ int nm_acregmin; /* Reg file attr cache min lifetime */
+ int nm_acregmax; /* Reg file attr cache max lifetime */
+ u_char nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
+ TAILQ_HEAD(, buf) nm_bufq; /* async io buffer queue */
+ short nm_bufqlen; /* number of buffers in queue */
+ short nm_bufqwant; /* process wants to add to the queue */
+ int nm_bufqiods; /* number of iods processing queue */
+ u_int64_t nm_maxfilesize; /* maximum file size */
+ struct nfs_rpcops *nm_rpcops;
+ int nm_tprintf_initial_delay; /* initial delay */
+ int nm_tprintf_delay; /* interval for messages */
+ int nm_secflavor; /* auth flavor to use for rpc */
+ struct __rpc_client *nm_client;
+ struct rpc_timers nm_timers[NFS_MAX_TIMER]; /* RTT Timers for rpcs */
+ char nm_principal[MNAMELEN]; /* GSS-API principal of server */
+ gss_OID nm_mech_oid; /* OID of selected GSS-API mechanism */
+ int nm_nametimeo; /* timeout for +ve entries (sec) */
+ int nm_negnametimeo; /* timeout for -ve entries (sec) */
+
+ /* NFSv4 */
+ uint64_t nm_clientid;
+ fsid_t nm_fsid;
+ u_int nm_lease_time;
+ time_t nm_last_renewal;
+};
+
+#define nm_mtx nm_com.nmcom_mtx
+#define nm_flag nm_com.nmcom_flag
+#define nm_state nm_com.nmcom_state
+#define nm_mountp nm_com.nmcom_mountp
+#define nm_timeo nm_com.nmcom_timeo
+#define nm_retry nm_com.nmcom_retry
+#define nm_hostname nm_com.nmcom_hostname
+#define nm_getinfo nm_com.nmcom_getinfo
+#define nm_vinvalbuf nm_com.nmcom_vinvalbuf
+
+#if defined(_KERNEL)
+/*
+ * Convert mount ptr to nfsmount ptr.
+ */
+#define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
+
+#ifndef NFS_TPRINTF_INITIAL_DELAY
+#define NFS_TPRINTF_INITIAL_DELAY 12
+#endif
+
+#ifndef NFS_TPRINTF_DELAY
+#define NFS_TPRINTF_DELAY 30
+#endif
+
+#ifndef NFS_DEFAULT_NAMETIMEO
+#define NFS_DEFAULT_NAMETIMEO 60
+#endif
+
+#ifndef NFS_DEFAULT_NEGNAMETIMEO
+#define NFS_DEFAULT_NEGNAMETIMEO 60
+#endif
+
+#endif
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfsnode.h b/freebsd/sys/nfsclient/nfsnode.h
new file mode 100644
index 0000000..3c6856d
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfsnode.h
@@ -0,0 +1,215 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfsnode.h 8.9 (Berkeley) 5/14/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSNODE_H_
+#define _NFSCLIENT_NFSNODE_H_
+
+#include <sys/_task.h>
+#if !defined(_NFSCLIENT_NFS_H_) && !defined(_KERNEL)
+#include <nfs/nfs.h>
+#endif
+
+/*
+ * Silly rename structure that hangs off the nfsnode until the name
+ * can be removed by nfs_inactive()
+ */
+struct sillyrename {
+ struct task s_task;
+ struct ucred *s_cred;
+ struct vnode *s_dvp;
+ int (*s_removeit)(struct sillyrename *sp);
+ long s_namlen;
+ char s_name[32];
+};
+
+/*
+ * This structure is used to save the logical directory offset to
+ * NFS cookie mappings.
+ * The mappings are stored in a list headed
+ * by n_cookies, as required.
+ * There is one mapping for each NFS_DIRBLKSIZ bytes of directory information
+ * stored in increasing logical offset byte order.
+ */
+#define NFSNUMCOOKIES 31
+
+struct nfsdmap {
+ LIST_ENTRY(nfsdmap) ndm_list;
+ int ndm_eocookie;
+ union {
+ nfsuint64 ndmu3_cookies[NFSNUMCOOKIES];
+ uint64_t ndmu4_cookies[NFSNUMCOOKIES];
+ } ndm_un1;
+};
+
+#define ndm_cookies ndm_un1.ndmu3_cookies
+#define ndm4_cookies ndm_un1.ndmu4_cookies
+
+struct nfs_accesscache {
+ u_int32_t mode; /* ACCESS mode cache */
+ uid_t uid; /* credentials having mode */
+ time_t stamp; /* mode cache timestamp */
+};
+
+/*
+ * The nfsnode is the nfs equivalent to ufs's inode. Any similarity
+ * is purely coincidental.
+ * There is a unique nfsnode allocated for each active file,
+ * each current directory, each mounted-on file, text file, and the root.
+ * An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
+ * If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite
+ * type definitions), file handles of > 32 bytes should probably be split out
+ * into a separate malloc()'d data structure. (Reduce the size of nfsfh_t by
+ * changing the definition in nfsproto.h of NFS_SMALLFH.)
+ * NB: Hopefully the current order of the fields is such that everything will
+ * be well aligned and, therefore, tightly packed.
+ */
+struct nfsnode {
+ struct mtx n_mtx; /* Protects all of these members */
+ u_quad_t n_size; /* Current size of file */
+ u_quad_t n_brev; /* Modify rev when cached */
+ u_quad_t n_lrev; /* Modify rev for lease */
+ struct vattr n_vattr; /* Vnode attribute cache */
+ time_t n_attrstamp; /* Attr. cache timestamp */
+ struct nfs_accesscache n_accesscache[NFS_ACCESSCACHESIZE];
+ struct timespec n_mtime; /* Prev modify time. */
+ nfsfh_t *n_fhp; /* NFS File Handle */
+ struct vnode *n_vnode; /* associated vnode */
+ struct vnode *n_dvp; /* parent vnode */
+ int n_error; /* Save write error value */
+ union {
+ struct timespec nf_atim; /* Special file times */
+ nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */
+ u_char nd4_cookieverf[NFSX_V4VERF];
+ } n_un1;
+ union {
+ struct timespec nf_mtim;
+ off_t nd_direof; /* Dir. EOF offset cache */
+ } n_un2;
+ union {
+ struct sillyrename *nf_silly; /* Ptr to silly rename struct */
+ LIST_HEAD(, nfsdmap) nd_cook; /* cookies */
+ } n_un3;
+ short n_fhsize; /* size in bytes, of fh */
+ short n_flag; /* Flag for locking.. */
+ nfsfh_t n_fh; /* Small File Handle */
+ u_char *n_name; /* leaf name, for v4 OPEN op */
+ uint32_t n_namelen;
+ int n_directio_opens;
+ int n_directio_asyncwr;
+ struct ucred *n_writecred; /* Cred. for putpages */
+};
+
+#define n_atim n_un1.nf_atim
+#define n_mtim n_un2.nf_mtim
+#define n_sillyrename n_un3.nf_silly
+#define n_cookieverf n_un1.nd_cookieverf
+#define n4_cookieverf n_un1.nd4_cookieverf
+#define n_direofoffset n_un2.nd_direof
+#define n_cookies n_un3.nd_cook
+
+/*
+ * Flags for n_flag
+ */
+#define NFSYNCWAIT 0x0002 /* fsync waiting for all directio async writes
+ to drain */
+#define NMODIFIED 0x0004 /* Might have a modified buffer in bio */
+#define NWRITEERR 0x0008 /* Flag write errors so close will know */
+/* 0x20, 0x40, 0x80 free */
+#define NACC 0x0100 /* Special file accessed */
+#define NUPD 0x0200 /* Special file updated */
+#define NCHG 0x0400 /* Special file times changed */
+#define NCREATED 0x0800 /* Opened by nfs_create() */
+#define NTRUNCATE 0x1000 /* Opened by nfs_setattr() */
+#define NSIZECHANGED 0x2000 /* File size has changed: need cache inval */
+#define NNONCACHE 0x4000 /* Node marked as noncacheable */
+#define NDIRCOOKIELK 0x8000 /* Lock to serialize access to directory cookies */
+
+/*
+ * Convert between nfsnode pointers and vnode pointers
+ */
+#define VTONFS(vp) ((struct nfsnode *)(vp)->v_data)
+#define NFSTOV(np) ((struct vnode *)(np)->n_vnode)
+
+#define NFS_TIMESPEC_COMPARE(T1, T2) (((T1)->tv_sec != (T2)->tv_sec) || ((T1)->tv_nsec != (T2)->tv_nsec))
+
+/*
+ * NFS iod threads can be in one of these two states once spawned.
+ * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time.
+ * NFSIOD_AVAILABLE - Available to be assigned an I/O operation.
+ */
+enum nfsiod_state {
+ NFSIOD_NOT_AVAILABLE = 0,
+ NFSIOD_AVAILABLE = 1,
+};
+
+/*
+ * Queue head for nfsiod's
+ */
+extern TAILQ_HEAD(nfs_bufq, buf) nfs_bufq;
+extern enum nfsiod_state nfs_iodwant[NFS_MAXASYNCDAEMON];
+extern struct nfsmount *nfs_iodmount[NFS_MAXASYNCDAEMON];
+
+#if defined(_KERNEL)
+
+extern struct vop_vector nfs_fifoops;
+extern struct vop_vector nfs_vnodeops;
+extern struct buf_ops buf_ops_nfs;
+
+/*
+ * Prototypes for NFS vnode operations
+ */
+int nfs_getpages(struct vop_getpages_args *);
+int nfs_putpages(struct vop_putpages_args *);
+int nfs_write(struct vop_write_args *);
+int nfs_inactive(struct vop_inactive_args *);
+int nfs_reclaim(struct vop_reclaim_args *);
+
+/* other stuff */
+int nfs_removeit(struct sillyrename *);
+int nfs_nget(struct mount *, nfsfh_t *, int, struct nfsnode **, int flags);
+nfsuint64 *nfs_getcookie(struct nfsnode *, off_t, int);
+void nfs_invaldir(struct vnode *);
+int nfs_upgrade_vnlock(struct vnode *vp);
+void nfs_downgrade_vnlock(struct vnode *vp, int old_lock);
+void nfs_printf(const char *fmt, ...);
+
+void nfs_dircookie_lock(struct nfsnode *np);
+void nfs_dircookie_unlock(struct nfsnode *np);
+
+#endif /* _KERNEL */
+
+#endif
diff --git a/freebsd/sys/nfsclient/nfsstats.h b/freebsd/sys/nfsclient/nfsstats.h
new file mode 100644
index 0000000..c65ae6d
--- /dev/null
+++ b/freebsd/sys/nfsclient/nfsstats.h
@@ -0,0 +1,71 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989, 1993, 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nfs.h 8.4 (Berkeley) 5/1/95
+ * $FreeBSD$
+ */
+
+#ifndef _NFSCLIENT_NFSSTATS_H_
+#define _NFSCLIENT_NFSSTATS_H_
+
+/*
+ * Stats structure
+ */
+struct nfsstats {
+ int attrcache_hits;
+ int attrcache_misses;
+ int lookupcache_hits;
+ int lookupcache_misses;
+ int direofcache_hits;
+ int direofcache_misses;
+ int accesscache_hits;
+ int accesscache_misses;
+ int biocache_reads;
+ int read_bios;
+ int read_physios;
+ int biocache_writes;
+ int write_bios;
+ int write_physios;
+ int biocache_readlinks;
+ int readlink_bios;
+ int biocache_readdirs;
+ int readdir_bios;
+ int rpcretries;
+ int rpcrequests;
+ int rpctimeouts;
+ int rpcunexpected;
+ int rpcinvalid;
+ int rpccnt[NFS_NPROCS];
+};
+
+#endif
diff --git a/freebsd/sys/nfsclient/nlminfo.h b/freebsd/sys/nfsclient/nlminfo.h
new file mode 100644
index 0000000..340bdbe
--- /dev/null
+++ b/freebsd/sys/nfsclient/nlminfo.h
@@ -0,0 +1,44 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1998 Berkeley Software Design, Inc. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from BSDI nlminfo.h,v 2.1 1998/03/18 01:30:38 don Exp
+ * $FreeBSD$
+ */
+
+/*
+ * Misc NLM informationi, some needed for the master lockd process, and some
+ * needed by every process doing nlm based locking.
+ */
+struct nlminfo {
+ /* these are used by any process doing nlm locking */
+ int msg_seq; /* sequence counter for lock requests */
+ int retcode; /* return code for lock requests */
+ int set_getlk_pid;
+ int getlk_pid;
+ struct timeval pid_start; /* process starting time */
+};
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