[PATCH 11/12] Add ipsec to rc.conf.
Christian Mauderer
christian.mauderer at embedded-brains.de
Wed Aug 1 08:04:53 UTC 2018
---
libbsd.py | 7 +
.../include/machine/rtems-bsd-rc-conf-services.h | 2 +
rtemsbsd/include/rtems/ipsec.h | 53 ++++++
rtemsbsd/rtems/rtems-bsd-racoon.c | 143 ++++++++++++++
rtemsbsd/rtems/rtems-bsd-rc-conf-ipsec.c | 210 +++++++++++++++++++++
5 files changed, 415 insertions(+)
create mode 100644 rtemsbsd/include/rtems/ipsec.h
create mode 100644 rtemsbsd/rtems/rtems-bsd-racoon.c
create mode 100644 rtemsbsd/rtems/rtems-bsd-rc-conf-ipsec.c
diff --git a/libbsd.py b/libbsd.py
index a667923f..d12987ce 100644
--- a/libbsd.py
+++ b/libbsd.py
@@ -2133,8 +2133,15 @@ class netipsec(builder.Module):
'prsa_par.h',
racoon_cflags,
build=False)))
+ self.addRTEMSHeaderFiles(
+ [
+ 'rtems/ipsec.h',
+ ]
+ )
self.addRTEMSSourceFiles(
[
+ 'rtems/rtems-bsd-racoon.c',
+ 'rtems/rtems-bsd-rc-conf-ipsec.c',
'rtems/rtems-bsd-shell-racoon.c',
'rtems/rtems-racoon-mutex.c',
],
diff --git a/rtemsbsd/include/machine/rtems-bsd-rc-conf-services.h b/rtemsbsd/include/machine/rtems-bsd-rc-conf-services.h
index 1d14187a..2797246d 100644
--- a/rtemsbsd/include/machine/rtems-bsd-rc-conf-services.h
+++ b/rtemsbsd/include/machine/rtems-bsd-rc-conf-services.h
@@ -158,6 +158,8 @@ void rc_conf_net_init(void* arg); /* Installed by default. */
void rc_conf_firewall_pf_init(void* arg); /* pf_enabled="YES" */
void rc_conf_telnetd_init(void* arg); /* telnetd_enabled="YES" */
void rc_conf_ftpd_init(void* arg); /* ftpd_enabled="YES" */
+void rc_conf_ipsec_init(void* arg); /* ipsec_enabled="YES"
+ and ike_enabled="YES" */
/*
* Added services.
diff --git a/rtemsbsd/include/rtems/ipsec.h b/rtemsbsd/include/rtems/ipsec.h
new file mode 100644
index 00000000..fcb358c7
--- /dev/null
+++ b/rtemsbsd/include/rtems/ipsec.h
@@ -0,0 +1,53 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd
+ *
+ * @brief Functions related to ipsec support in RTEMS.
+ */
+
+/*
+ * Copyright (c) 2018 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * 82178 Puchheim
+ * Germany
+ * <rtems at embedded-brains.de>
+ *
+ * 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.
+ */
+
+#ifndef _RTEMS_IPSEC_H_
+#define _RTEMS_IPSEC_H_
+
+/**
+ * @brief Starts the racoon daemon.
+ *
+ * @param argc Argument count including a leading "racoon".
+ * @param argv Program name and parameters. Terminate with NULL.
+ * @param prio Priority to use for the daemon process.
+ */
+rtems_status_code rtems_bsd_racoon_daemon(int argc, const char **argv,
+ rtems_task_priority prio);
+
+#endif /* _RTEMS_IPSEC_H_ */
diff --git a/rtemsbsd/rtems/rtems-bsd-racoon.c b/rtemsbsd/rtems/rtems-bsd-racoon.c
new file mode 100644
index 00000000..c7ea3594
--- /dev/null
+++ b/rtemsbsd/rtems/rtems-bsd-racoon.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2018 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * 82178 Puchheim
+ * Germany
+ * <rtems at embedded-brains.de>
+ *
+ * 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 <rtems.h>
+#include <rtems/thread.h>
+#include <rtems/netcmds-config.h>
+#include <machine/rtems-bsd-commands.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <syslog.h>
+
+struct argc_argv {
+ size_t argc;
+ char **argv;
+};
+
+static bool racoon_initialized = false;
+rtems_recursive_mutex racoon_mutex =
+ RTEMS_RECURSIVE_MUTEX_INITIALIZER("racoon");
+
+static void
+clean_up_args(struct argc_argv *args)
+{
+ if (args != NULL) {
+ if (args->argv != NULL) {
+ for (int i = 0; i < args->argc; ++i) {
+ if (args->argv[i] != NULL) {
+ free(args->argv[i]);
+ }
+ }
+ free(args->argv);
+ }
+ free(args);
+ }
+}
+
+static void
+racoon_task(rtems_task_argument arg)
+{
+ int exit_code;
+ struct argc_argv *args = (struct argc_argv *) arg;
+
+ exit_code = rtems_bsd_command_racoon(args->argc, args->argv);
+ if (exit_code != EXIT_SUCCESS) {
+ syslog(LOG_ERR, "racoon exited with %d\n", exit_code);
+ }
+
+ clean_up_args(args);
+ rtems_task_delete(RTEMS_SELF);
+}
+
+rtems_status_code
+rtems_bsd_racoon_daemon(int argc, const char **argv, rtems_task_priority prio)
+{
+ rtems_id id;
+ rtems_status_code sc = RTEMS_SUCCESSFUL;
+ struct argc_argv *args = NULL;
+
+ rtems_recursive_mutex_lock(&racoon_mutex);
+
+ if (racoon_initialized) {
+ sc = RTEMS_INCORRECT_STATE;
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ args = malloc(sizeof(struct argc_argv));
+ if (args == NULL) {
+ sc = RTEMS_NO_MEMORY;
+ }
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ args->argc = argc;
+ args->argv = calloc(argc + 1, sizeof(char*));
+ if (args->argv == NULL) {
+ sc = RTEMS_NO_MEMORY;
+ }
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ for (int i = 0; i < argc; ++i) {
+ args->argv[i] = strdup(argv[i]);
+ if (args->argv[i] == NULL) {
+ sc = RTEMS_NO_MEMORY;
+ }
+ }
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ sc = rtems_task_create(
+ rtems_build_name('R', 'A', 'C', 'N'),
+ prio,
+ 32 * 1024,
+ RTEMS_DEFAULT_MODES,
+ RTEMS_FLOATING_POINT,
+ &id
+ );
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ sc = rtems_task_start(id, racoon_task,
+ (rtems_task_argument)args);
+ }
+
+ if (sc == RTEMS_SUCCESSFUL) {
+ racoon_initialized = true;
+ } else {
+ clean_up_args(args);
+ }
+
+ rtems_recursive_mutex_unlock(&racoon_mutex);
+
+ return (sc);
+}
diff --git a/rtemsbsd/rtems/rtems-bsd-rc-conf-ipsec.c b/rtemsbsd/rtems/rtems-bsd-rc-conf-ipsec.c
new file mode 100644
index 00000000..3d2734b9
--- /dev/null
+++ b/rtemsbsd/rtems/rtems-bsd-rc-conf-ipsec.c
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2018 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * 82178 Puchheim
+ * Germany
+ * <rtems at embedded-brains.de>
+ *
+ * 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.
+ */
+
+/*
+ * Handle the IPSec and ike related directives found in rc.conf.
+ * - ipsec_enable
+ * - ipsec_file
+ * - ike_enable
+ * - ike_program
+ * - ike_flags
+ * - ike_priority
+ *
+ * Notes:
+ * - `ike_...` seems not to be included in the rc.conf man page. But the
+ * parameters are there in the default rc.conf file. So handle them.
+ * - For ike_program, "racoon" is the only supported one (without any path).
+ */
+
+#include <rtems.h>
+#include <rtems/ipsec.h>
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+
+#include <machine/rtems-bsd-commands.h>
+#include <machine/rtems-bsd-rc-conf-services.h>
+
+static int
+ipsec_service(rtems_bsd_rc_conf* rc_conf)
+{
+ rtems_bsd_rc_conf_argc_argv* aa;
+ int r;
+ int erroroccured = 0;
+
+ aa = rtems_bsd_rc_conf_argc_argv_create();
+ if (aa == NULL)
+ return -1;
+
+ r = rtems_bsd_rc_conf_find(rc_conf, "ipsec_enable", aa);
+ if (r == 0) {
+ if (aa->argc == 2 && strcasecmp("YES", aa->argv[1]) == 0) {
+ char* ipsec_file = NULL;
+
+ if (erroroccured == 0) {
+ r = rtems_bsd_rc_conf_find(rc_conf, "ipsec_file", aa);
+ if (r == 0) {
+ if (aa->argc == 2) {
+ ipsec_file = strdup(aa->argv[1]);
+ if (ipsec_file == NULL) {
+ fprintf(stderr,
+ "error: ipsec: Could not duplicate ipsec file string: %s\n",
+ strerror(errno));
+ erroroccured = -1;
+ }
+ } else {
+ fprintf(stderr,
+ "error: ipsec: Syntax error in ipsec_file directive.\n");
+ erroroccured = -1;
+ }
+ }
+ }
+
+ if (erroroccured == 0) {
+ if (ipsec_file == NULL) {
+ fprintf(stderr, "error: ipsec: No ipsec_file given.\n");
+ erroroccured = -1;
+ }
+ }
+
+ if (erroroccured == 0) {
+ char *setkey[] = {"setkey", "-f", ipsec_file, NULL};
+
+ rtems_bsd_rc_conf_print_cmd(
+ rc_conf, "setkey", RTEMS_BSD_ARGC(setkey), (const char**)setkey);
+ r = rtems_bsd_command_setkey(RTEMS_BSD_ARGC(setkey), setkey);
+ if (r != EXIT_SUCCESS) {
+ fprintf(stderr,
+ "error: setkey: Call to setkey failed.\n");
+ erroroccured = -1;
+ }
+ }
+
+ if (ipsec_file != NULL) {
+ free(ipsec_file);
+ }
+ }
+ }
+
+ rtems_bsd_rc_conf_argc_argv_destroy(aa);
+
+ return erroroccured;
+}
+
+static int
+ike_service(rtems_bsd_rc_conf* rc_conf)
+{
+ rtems_bsd_rc_conf_argc_argv* aa;
+ int r;
+ int erroroccured = 0;
+
+ aa = rtems_bsd_rc_conf_argc_argv_create();
+ if (aa == NULL)
+ return -1;
+
+ r = rtems_bsd_rc_conf_find(rc_conf, "ike_enable", aa);
+ if (r == 0) {
+ if (aa->argc == 2 && strcasecmp("YES", aa->argv[1]) == 0) {
+ const char *default_argv[] = {"racoon", NULL};
+ const char **argv = default_argv;
+ rtems_task_priority prio = RTEMS_MAXIMUM_PRIORITY - 1;
+ int argc = 1;
+
+ r = rtems_bsd_rc_conf_find(rc_conf, "ike_program", aa);
+ if (r == 0) {
+ if (aa->argc != 2 || strcasecmp("racoon", aa->argv[1]) != 0) {
+ fprintf(stderr,
+ "error: ike: Only \"racoon\" is supported as ike_program\n");
+ erroroccured = -1;
+ }
+ }
+
+ if (erroroccured == 0) {
+ r = rtems_bsd_rc_conf_find(rc_conf, "ike_priority", aa);
+ if (r == 0) {
+ if (aa->argc == 2) {
+ char *end;
+ prio = strtoul(aa->argv[1], &end, 10);
+ if (*end != '\0') {
+ fprintf(stderr,
+ "error: ike: syntax error in ike_priority\n");
+ erroroccured = -1;
+ }
+ }
+ }
+ }
+
+ if (erroroccured == 0) {
+ r = rtems_bsd_rc_conf_find(rc_conf, "ike_flags", aa);
+ if (r == 0) {
+ argc = aa->argc;
+ argv = aa->argv;
+ }
+ }
+
+ if (erroroccured == 0) {
+ rtems_status_code sc;
+ sc = rtems_bsd_racoon_daemon(argc, argv, prio);
+ if (sc != RTEMS_SUCCESSFUL) {
+ fprintf(stderr, "error: ike: Could not start racoon: %s\n",
+ rtems_status_text(sc));
+ erroroccured = -1;
+ }
+ }
+ }
+ }
+
+ rtems_bsd_rc_conf_argc_argv_destroy(aa);
+
+ return erroroccured;
+}
+
+void
+rc_conf_ipsec_init(void* arg)
+{
+ int r;
+ r = rtems_bsd_rc_conf_service_add("ipsec",
+ "after:network;before:telnetd;",
+ ipsec_service);
+ if (r < 0)
+ fprintf(stderr,
+ "error: ipsec service add failed: %s\n", strerror(errno));
+ r = rtems_bsd_rc_conf_service_add("ike",
+ "after:ipsec;before:telnetd;",
+ ike_service);
+ if (r < 0)
+ fprintf(stderr,
+ "error: ike service add failed: %s\n", strerror(errno));
+}
--
2.13.7
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