[rtems-libbsd commit] mDNSResponder: Update to v576.30.4

Sebastian Huber sebh at rtems.org
Thu Sep 20 09:27:51 UTC 2018


Module:    rtems-libbsd
Branch:    master
Commit:    49ebc73e1db87793fe536480739cdd31587d554d
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=49ebc73e1db87793fe536480739cdd31587d554d

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Thu Sep 20 11:12:30 2018 +0200

mDNSResponder: Update to v576.30.4

The sources can be obtained via:

https://opensource.apple.com/tarballs/mDNSResponder/mDNSResponder-576.30.4.tar.gz

Update #3522.

---

 mDNSResponder/Clients/.DS_Store                    | Bin 6148 -> 0 bytes
 mDNSResponder/Clients/._.DS_Store                  | Bin 120 -> 0 bytes
 mDNSResponder/Clients/dns-sd.c                     |   3 +-
 mDNSResponder/Clients/dnsctl.c                     |   2 +-
 mDNSResponder/Makefile                             |   2 +-
 mDNSResponder/mDNSCore/DNSCommon.c                 |   2 +
 mDNSResponder/mDNSCore/mDNS.c                      |  74 ++++----
 mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h           |   6 +-
 mDNSResponder/mDNSCore/uDNS.c                      |   6 +-
 mDNSResponder/mDNSMacOSX/CUPolicy.c                |  28 ++--
 .../mDNSMacOSX/LaunchDaemonInfo.helper.plist       |   2 +-
 mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.plist    |   4 +-
 mDNSResponder/mDNSMacOSX/Private/dns_services.c    |   2 +-
 .../{dns_services_mdns.h => dns_services.h}        |   0
 mDNSResponder/mDNSMacOSX/VPNService.c              |   6 +-
 mDNSResponder/mDNSMacOSX/daemon.c                  |   7 +-
 mDNSResponder/mDNSMacOSX/mDNSMacOSX.c              | 186 ++++++++++++++++-----
 .../mDNSMacOSX/mDNSResponder-entitlements.plist    |   8 +
 mDNSResponder/mDNSMacOSX/mDNSResponder.sb          |   6 +-
 .../mDNSResponder.xcodeproj/project.pbxproj        | 169 +++++++++----------
 mDNSResponder/mDNSPosix/mDNSPosix.c                |   4 +
 mDNSResponder/mDNSShared/dns_sd.h                  |   3 +-
 mDNSResponder/mDNSShared/dnssd_clientshim.c        |   1 +
 mDNSResponder/mDNSShared/dnssd_clientstub.c        |   1 +
 mDNSResponder/mDNSShared/uds_daemon.c              | 132 ++++++++++++++-
 25 files changed, 446 insertions(+), 208 deletions(-)

diff --git a/mDNSResponder/Clients/.DS_Store b/mDNSResponder/Clients/.DS_Store
deleted file mode 100644
index c3ebd68..0000000
Binary files a/mDNSResponder/Clients/.DS_Store and /dev/null differ
diff --git a/mDNSResponder/Clients/._.DS_Store b/mDNSResponder/Clients/._.DS_Store
deleted file mode 100644
index 09fa6bd..0000000
Binary files a/mDNSResponder/Clients/._.DS_Store and /dev/null differ
diff --git a/mDNSResponder/Clients/dns-sd.c b/mDNSResponder/Clients/dns-sd.c
index 61c7dcd..9acf41e 100644
--- a/mDNSResponder/Clients/dns-sd.c
+++ b/mDNSResponder/Clients/dns-sd.c
@@ -1617,6 +1617,7 @@ int main(int argc, char **argv)
         err = RegisterService(&client, argv[opi+0], typ, dom, NULL, argv[opi+3], argc-(opi+4), argv+(opi+4), flags);
         break;
 
+
     case 'P':   if (argc < opi+6) goto Fail;
         err = DNSServiceCreateConnection(&client_pa);
         if (err) { fprintf(stderr, "DNSServiceCreateConnection returned %d\n", err); return(err); }
@@ -1631,7 +1632,7 @@ int main(int argc, char **argv)
     case 'C':   {
         uint16_t rrtype, rrclass;
         flags |= kDNSServiceFlagsReturnIntermediates;
-        if (operation == 'q') 
+        if (operation == 'q')
             flags |= kDNSServiceFlagsSuppressUnusable;
         if (argc < opi+1) 
             goto Fail;
diff --git a/mDNSResponder/Clients/dnsctl.c b/mDNSResponder/Clients/dnsctl.c
index b557ac3..bb2a071 100644
--- a/mDNSResponder/Clients/dnsctl.c
+++ b/mDNSResponder/Clients/dnsctl.c
@@ -18,7 +18,7 @@
 #include <net/if.h> // if_nametoindex()
 
 #include <dispatch/dispatch.h>
-#include "dns_services_mdns.h"
+#include "dns_services.h"
 
 //*************************************************************************************************************
 // Globals:
diff --git a/mDNSResponder/Makefile b/mDNSResponder/Makefile
index d7c1919..647dcf9 100644
--- a/mDNSResponder/Makefile
+++ b/mDNSResponder/Makefile
@@ -16,7 +16,7 @@
 
 include $(MAKEFILEPATH)/pb_makefiles/platform.make
 
-MVERS = "mDNSResponder-567"
+MVERS = "mDNSResponder-576.30.4"
 
 DDNSWRITECONFIG = "$(DSTROOT)/Library/Application Support/Bonjour/ddnswriteconfig"
 VER = 
diff --git a/mDNSResponder/mDNSCore/DNSCommon.c b/mDNSResponder/mDNSCore/DNSCommon.c
index 3b2f2ce..249e3b2 100644
--- a/mDNSResponder/mDNSCore/DNSCommon.c
+++ b/mDNSResponder/mDNSCore/DNSCommon.c
@@ -1467,6 +1467,8 @@ mDNSexport void mDNS_SetupQuestion(DNSQuestion *const q, const mDNSInterfaceID I
     q->ForceMCast          = mDNSfalse;
     q->ReturnIntermed      = mDNSfalse;
     q->SuppressUnusable    = mDNSfalse;
+    q->DenyOnCellInterface = mDNSfalse;
+    q->DenyOnExpInterface  = mDNSfalse;
     q->SearchListIndex     = 0;
     q->AppendSearchDomains = 0;
     q->RetryWithSearchDomains = mDNSfalse;
diff --git a/mDNSResponder/mDNSCore/mDNS.c b/mDNSResponder/mDNSCore/mDNS.c
index e15b7cf..e0af1f1 100755
--- a/mDNSResponder/mDNSCore/mDNS.c
+++ b/mDNSResponder/mDNSCore/mDNS.c
@@ -466,8 +466,10 @@ mDNSexport void AnswerQuestionByFollowingCNAME(mDNS *const m, DNSQuestion *q, Re
 {
     const mDNSBool selfref = SameDomainName(&q->qname, &rr->rdata->u.name);
     if (q->CNAMEReferrals >= 10 || selfref)
+    {
         LogMsg("AnswerQuestionByFollowingCNAME: %p %##s (%s) NOT following CNAME referral %d%s for %s",
                q, q->qname.c, DNSTypeName(q->qtype), q->CNAMEReferrals, selfref ? " (Self-Referential)" : "", RRDisplayString(m, rr));
+    }
     else
     {
         const mDNSu32 c = q->CNAMEReferrals + 1;        // Stash a copy of the new q->CNAMEReferrals value
@@ -1254,19 +1256,6 @@ mDNSexport mStatus mDNS_Register_internal(mDNS *const m, AuthRecord *const rr)
         }
     }
 
-    // If this resource record is referencing a specific interface, make sure it exists.
-    // Skip checks for LocalOnly and P2P as they are not valid InterfaceIDs. Also, for scoped
-    // entries in /etc/hosts skip that check as that interface may not be valid at this time.
-    if (rr->resrec.InterfaceID && rr->ARType != AuthRecordLocalOnly && rr->ARType != AuthRecordP2P)
-    {
-        NetworkInterfaceInfo *intf = FirstInterfaceForID(m, rr->resrec.InterfaceID);
-        if (!intf)
-        {
-            debugf("mDNS_Register_internal: Bogus InterfaceID %p in resource record", rr->resrec.InterfaceID);
-            return(mStatus_BadReferenceErr);
-        }
-    }
-
     rr->next = mDNSNULL;
 
     // Field Group 1: The actual information pertaining to this resource record
@@ -2821,7 +2810,8 @@ mDNSlocal void SendResponses(mDNS *const m)
         if (rr->SendRNow)
         {
             if (rr->ARType != AuthRecordLocalOnly && rr->ARType != AuthRecordP2P)
-                LogMsg("SendResponses: No active interface %p to send: %p %02X %s", rr->SendRNow, rr->resrec.InterfaceID, rr->resrec.RecordType, ARDisplayString(m, rr));
+                LogInfo("SendResponses: No active interface %d to send: %d %02X %s",
+                     (uint32_t)rr->SendRNow, (uint32_t)rr->resrec.InterfaceID, rr->resrec.RecordType, ARDisplayString(m, rr));
             rr->SendRNow = mDNSNULL;
         }
 
@@ -3467,6 +3457,11 @@ mDNSlocal void SendQueries(mDNS *const m)
             {
                 if (ar->AddressProxy.type == mDNSAddrType_IPv4)
                 {
+                	// There's a problem here. If a host is waking up, and we probe to see if it responds, then
+                	// it will see those ARP probes as signalling intent to use the address, so it picks a different one.
+                	// A more benign way to find out if a host is responding to ARPs might be send a standard ARP *request*
+                	// (using our sender IP address) instead of an ARP *probe* (using all-zero sender IP address).
+                	// A similar concern may apply to the NDP Probe too. -- SC
                     LogSPS("SendQueries ARP Probe %d %s %s", ar->ProbeCount, InterfaceNameForID(m, ar->resrec.InterfaceID), ARDisplayString(m,ar));
                     SendARP(m, 1, ar, &zerov4Addr, &zeroEthAddr, &ar->AddressProxy.ip.v4, &ar->WakeUp.IMAC);
                 }
@@ -3747,7 +3742,8 @@ mDNSlocal void SendQueries(mDNS *const m)
         if (ar->SendRNow)
         {
             if (ar->ARType != AuthRecordLocalOnly && ar->ARType != AuthRecordP2P)
-                LogMsg("SendQueries: No active interface %p to send probe: %p %s", ar->SendRNow, ar->resrec.InterfaceID, ARDisplayString(m, ar));
+                LogInfo("SendQueries: No active interface %d to send probe: %d %s",
+                    (uint32_t)ar->SendRNow, (uint32_t)ar->resrec.InterfaceID, ARDisplayString(m, ar));
             ar->SendRNow = mDNSNULL;
         }
 
@@ -3778,7 +3774,8 @@ mDNSlocal void SendQueries(mDNS *const m)
         {
             DNSQuestion *x;
             for (x = m->NewQuestions; x; x=x->next) if (x == q) break;  // Check if this question is a NewQuestion
-            LogMsg("SendQueries: No active interface %p to send %s question: %p %##s (%s)", q->SendQNow, x ? "new" : "old", q->InterfaceID, q->qname.c, DNSTypeName(q->qtype));
+            LogInfo("SendQueries: No active interface %d to send %s question: %d %##s (%s)",
+                (uint32_t)q->SendQNow, x ? "new" : "old", (uint32_t)q->InterfaceID, q->qname.c, DNSTypeName(q->qtype));
             q->SendQNow = mDNSNULL;
         }
         q->CachedAnswerNeedsUpdate = mDNSfalse;
@@ -10347,6 +10344,7 @@ mDNSexport void mDNSCoreReceive(mDNS *const m, void *const pkt, const mDNSu8 *co
 // (b) being performed by a unicast DNS long-lived query (either full LLQ, or polling)
 // for multicast questions, we don't want to treat LongLived as anything special
 #define IsLLQ(Q) ((Q)->LongLived && !mDNSOpaque16IsZero((Q)->TargetQID))
+#define IsAWDLIncluded(Q) (((Q)->flags & kDNSServiceFlagsIncludeAWDL) != 0)
 
 mDNSlocal DNSQuestion *FindDuplicateQuestion(const mDNS *const m, const DNSQuestion *const question)
 {
@@ -10369,6 +10367,7 @@ mDNSlocal DNSQuestion *FindDuplicateQuestion(const mDNS *const m, const DNSQuest
             (q->DisallowPID == question->DisallowPID)     &&            // Disallowing a PID should not affect a PID that is allowed
             (q->BrowseThreshold == question->BrowseThreshold) &&  // browse thresholds must match
             q->qnamehash  == question->qnamehash    &&
+            (IsAWDLIncluded(q) == IsAWDLIncluded(question)) &&  // Inclusion of AWDL interface must match
             SameDomainName(&q->qname, &question->qname))        // and name
             return(q);
     return(mDNSNULL);
@@ -11334,8 +11333,8 @@ mDNSlocal mStatus ValidateParameters(mDNS *const m, DNSQuestion *const question)
     {
         NetworkInterfaceInfo *intf = FirstInterfaceForID(m, question->InterfaceID);
         if (!intf)
-            LogMsg("ValidateParameters: Note: InterfaceID %p for question %##s (%s) not currently found in active interface list",
-                    question->InterfaceID, question->qname.c, DNSTypeName(question->qtype));
+            LogInfo("ValidateParameters: Note: InterfaceID %d for question %##s (%s) not currently found in active interface list",
+                    (uint32_t)question->InterfaceID, question->qname.c, DNSTypeName(question->qtype));
     }
     
     return(mStatus_NoError);
@@ -11445,9 +11444,15 @@ mDNSlocal mDNSBool InitCommonState(mDNS *const m, DNSQuestion *const question)
     question->LOAddressAnswers  = 0;
     question->FlappingInterface1 = mDNSNULL;
     question->FlappingInterface2 = mDNSNULL;
-
-    question->ServiceID = mDNSPlatformGetServiceID(m, question);
-    
+	
+	// if kDNSServiceFlagsServiceIndex flag is SET by the client, then do NOT call mDNSPlatformGetServiceID()
+	// since we would already have the question->ServiceID in that case.
+	if (!(question->flags & kDNSServiceFlagsServiceIndex))
+		question->ServiceID = mDNSPlatformGetServiceID(m, question);
+	else
+		LogInfo("InitCommonState: Query for %##s (%s), PID[%d], ServiceID %d is already set by client", question->qname.c,
+			   DNSTypeName(question->qtype), question->pid, question->ServiceID);
+	
     InitDNSConfig(m, question);
 
     question->AuthInfo          = GetAuthInfoForQuestion(m, question);
@@ -11459,10 +11464,8 @@ mDNSlocal mDNSBool InitCommonState(mDNS *const m, DNSQuestion *const question)
     // set DisallowPID
     question->DisallowPID       = (question->ServiceID == 0 || (mDNSPlatformAllowPID(m, question) == 0));
     if (question->DisallowPID)
-    {
         LogInfo("InitCommonState: Query suppressed for %##s (%s), PID %d/ServiceID %d not allowed", question->qname.c,
-            DNSTypeName(question->qtype), question->pid, question->ServiceID);
-    }
+					DNSTypeName(question->qtype), question->pid, question->ServiceID);
 
     question->NextInDQList      = mDNSNULL;
     question->SendQNow          = mDNSNULL;
@@ -11983,6 +11986,8 @@ mDNSlocal mStatus mDNS_StartBrowse_internal(mDNS *const m, DNSQuestion *const qu
     question->ForceMCast       = ForceMCast;
     question->ReturnIntermed   = mDNSfalse;
     question->SuppressUnusable = mDNSfalse;
+    question->DenyOnCellInterface = mDNSfalse;
+    question->DenyOnExpInterface  = mDNSfalse;
     question->SearchListIndex  = 0;
     question->AppendSearchDomains = 0;
     question->RetryWithSearchDomains = mDNSfalse;
@@ -12179,6 +12184,8 @@ mDNSexport mStatus mDNS_StartResolveService(mDNS *const m,
     query->qSRV.ForceMCast          = mDNSfalse;
     query->qSRV.ReturnIntermed      = mDNSfalse;
     query->qSRV.SuppressUnusable    = mDNSfalse;
+    query->qSRV.DenyOnCellInterface = mDNSfalse;
+    query->qSRV.DenyOnExpInterface  = mDNSfalse;
     query->qSRV.SearchListIndex     = 0;
     query->qSRV.AppendSearchDomains = 0;
     query->qSRV.RetryWithSearchDomains = mDNSfalse;
@@ -12205,6 +12212,8 @@ mDNSexport mStatus mDNS_StartResolveService(mDNS *const m,
     query->qTXT.ForceMCast          = mDNSfalse;
     query->qTXT.ReturnIntermed      = mDNSfalse;
     query->qTXT.SuppressUnusable    = mDNSfalse;
+    query->qTXT.DenyOnCellInterface = mDNSfalse;
+    query->qTXT.DenyOnExpInterface  = mDNSfalse;
     query->qTXT.SearchListIndex     = 0;
     query->qTXT.AppendSearchDomains = 0;
     query->qTXT.RetryWithSearchDomains = mDNSfalse;
@@ -12231,6 +12240,8 @@ mDNSexport mStatus mDNS_StartResolveService(mDNS *const m,
     query->qAv4.ForceMCast          = mDNSfalse;
     query->qAv4.ReturnIntermed      = mDNSfalse;
     query->qAv4.SuppressUnusable    = mDNSfalse;
+    query->qAv4.DenyOnCellInterface = mDNSfalse;
+    query->qAv4.DenyOnExpInterface  = mDNSfalse;
     query->qAv4.SearchListIndex     = 0;
     query->qAv4.AppendSearchDomains = 0;
     query->qAv4.RetryWithSearchDomains = mDNSfalse;
@@ -12257,6 +12268,8 @@ mDNSexport mStatus mDNS_StartResolveService(mDNS *const m,
     query->qAv6.ForceMCast          = mDNSfalse;
     query->qAv6.ReturnIntermed      = mDNSfalse;
     query->qAv6.SuppressUnusable    = mDNSfalse;
+    query->qAv6.DenyOnCellInterface = mDNSfalse;
+    query->qAv6.DenyOnExpInterface  = mDNSfalse;
     query->qAv6.SearchListIndex     = 0;
     query->qAv6.AppendSearchDomains = 0;
     query->qAv6.RetryWithSearchDomains = mDNSfalse;
@@ -12318,6 +12331,8 @@ mDNSexport mStatus mDNS_GetDomains(mDNS *const m, DNSQuestion *const question, m
     question->ForceMCast       = mDNSfalse;
     question->ReturnIntermed   = mDNSfalse;
     question->SuppressUnusable = mDNSfalse;
+    question->DenyOnCellInterface = mDNSfalse;
+    question->DenyOnExpInterface  = mDNSfalse;
     question->SearchListIndex  = 0;
     question->AppendSearchDomains = 0;
     question->RetryWithSearchDomains = mDNSfalse;
@@ -12817,7 +12832,8 @@ mDNSexport mStatus mDNS_RegisterInterface(mDNS *const m, NetworkInterfaceInfo *s
     if (set->Advertise)
         AdvertiseInterface(m, set);
 
-    LogInfo("mDNS_RegisterInterface: InterfaceID %p %s (%#a) %s", set->InterfaceID, set->ifname, &set->ip,
+    LogInfo("mDNS_RegisterInterface: InterfaceID %d %s (%#a) %s",
+            (uint32_t)set->InterfaceID, set->ifname, &set->ip,
             set->InterfaceActive ?
             "not represented in list; marking active and retriggering queries" :
             "already represented in list; marking inactive for now");
@@ -12961,8 +12977,8 @@ mDNSexport void mDNS_DeregisterInterface(mDNS *const m, NetworkInterfaceInfo *se
         NetworkInterfaceInfo *intf = FirstInterfaceForID(m, set->InterfaceID);
         if (intf)
         {
-            LogInfo("mDNS_DeregisterInterface: Another representative of InterfaceID %p %s (%#a) exists;"
-                    " making it active", set->InterfaceID, set->ifname, &set->ip);
+            LogInfo("mDNS_DeregisterInterface: Another representative of InterfaceID %d %s (%#a) exists;"
+                    " making it active", (uint32_t)set->InterfaceID, set->ifname, &set->ip);
             if (intf->InterfaceActive)
                 LogMsg("mDNS_DeregisterInterface: ERROR intf->InterfaceActive already set for %s (%#a)", set->ifname, &set->ip);
             intf->InterfaceActive = mDNStrue;
@@ -12984,8 +13000,8 @@ mDNSexport void mDNS_DeregisterInterface(mDNS *const m, NetworkInterfaceInfo *se
             CacheRecord *rr;
             DNSQuestion *q;
 
-            LogInfo("mDNS_DeregisterInterface: Last representative of InterfaceID %p %s (%#a) deregistered;"
-                    " marking questions etc. dormant", set->InterfaceID, set->ifname, &set->ip);
+            LogInfo("mDNS_DeregisterInterface: Last representative of InterfaceID %d %s (%#a) deregistered;"
+                    " marking questions etc. dormant", (uint32_t)set->InterfaceID, set->ifname, &set->ip);
 
             m->mDNSStats.InterfaceDown++;
 
diff --git a/mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h b/mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h
index 81b4192..bafeb02 100755
--- a/mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h
+++ b/mDNSResponder/mDNSCore/mDNSEmbeddedAPI.h
@@ -1983,10 +1983,12 @@ struct DNSQuestion_struct
     mDNSBool ForceMCast;                    // Set by client to force mDNS query, even for apparently uDNS names
     mDNSBool ReturnIntermed;                // Set by client to request callbacks for intermediate CNAME/NXDOMAIN results
     mDNSBool SuppressUnusable;              // Set by client to suppress unusable queries to be sent on the wire
+    mDNSBool DenyOnCellInterface;           // Set by client to suppress uDNS queries on cellular interface
+    mDNSBool DenyOnExpInterface;            // Set by client to suppress uDNS queries on expensive interface
     mDNSu8 RetryWithSearchDomains;          // Retry with search domains if there is no entry in the cache or AuthRecords
     mDNSu8 TimeoutQuestion;                 // Timeout this question if there is no reply in configured time
     mDNSu8 WakeOnResolve;                   // Send wakeup on resolve
-    mDNSu8 UseBackgroundTrafficClass;       // Use background traffic class for request
+    mDNSu8 UseBackgroundTrafficClass;       // Set by client to use background traffic class for request
     mDNSs8 SearchListIndex;                 // Index into SearchList; Used by the client layer but not touched by core
     mDNSs8 AppendSearchDomains;             // Search domains can be appended for this query
     mDNSs8 AppendLocalSearchDomains;        // Search domains ending in .local can be appended for this query
@@ -3336,7 +3338,7 @@ extern void mDNSPlatformSleepAssertion(mDNS *const m, double timeout);
 
 extern mDNSBool mDNSPlatformAllowPID(mDNS *const m, DNSQuestion *q);
 extern mDNSs32 mDNSPlatformGetServiceID(mDNS *const m, DNSQuestion *q);
-extern void mDNSPlatformSetDelegatePID(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q);
+extern void mDNSPlatformSetuDNSSocktOpt(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q);
 extern mDNSs32 mDNSPlatformGetPID(void);
 
 // ***************************************************************************
diff --git a/mDNSResponder/mDNSCore/uDNS.c b/mDNSResponder/mDNSCore/uDNS.c
index 8c7c330..ce12d01 100755
--- a/mDNSResponder/mDNSCore/uDNS.c
+++ b/mDNSResponder/mDNSCore/uDNS.c
@@ -1880,6 +1880,8 @@ mDNSlocal mStatus GetZoneData_StartQuery(mDNS *const m, ZoneData *zd, mDNSu16 qt
     zd->question.ForceMCast          = mDNSfalse;
     zd->question.ReturnIntermed      = mDNStrue;
     zd->question.SuppressUnusable    = mDNSfalse;
+    zd->question.DenyOnCellInterface = mDNSfalse;
+    zd->question.DenyOnExpInterface  = mDNSfalse;
     zd->question.SearchListIndex     = 0;
     zd->question.AppendSearchDomains = 0;
     zd->question.RetryWithSearchDomains = mDNSfalse;
@@ -2567,6 +2569,8 @@ mDNSlocal void GetStaticHostname(mDNS *m)
     q->ForceMCast       = mDNSfalse;
     q->ReturnIntermed   = mDNStrue;
     q->SuppressUnusable = mDNSfalse;
+    q->DenyOnCellInterface = mDNSfalse;
+    q->DenyOnExpInterface  = mDNSfalse;
     q->SearchListIndex  = 0;
     q->AppendSearchDomains = 0;
     q->RetryWithSearchDomains = mDNSfalse;
@@ -4791,7 +4795,7 @@ mDNSexport void uDNS_CheckCurrentQuestion(mDNS *const m)
                     {
                         q->LocalSocket = mDNSPlatformUDPSocket(m, zeroIPPort);
                         if (q->LocalSocket)
-                            mDNSPlatformSetDelegatePID(q->LocalSocket, &q->qDNSServer->addr, q);
+                            mDNSPlatformSetuDNSSocktOpt(q->LocalSocket, &q->qDNSServer->addr, q);
                     }
                     if (!q->LocalSocket) err = mStatus_NoMemoryErr; // If failed to make socket (should be very rare), we'll try again next time
                     else err = mDNSSendDNSMessage(m, &m->omsg, end, q->qDNSServer->interface, q->LocalSocket, &q->qDNSServer->addr, q->qDNSServer->port, mDNSNULL, mDNSNULL, q->UseBackgroundTrafficClass);
diff --git a/mDNSResponder/mDNSMacOSX/CUPolicy.c b/mDNSResponder/mDNSMacOSX/CUPolicy.c
index 434e65c..187748e 100644
--- a/mDNSResponder/mDNSMacOSX/CUPolicy.c
+++ b/mDNSResponder/mDNSMacOSX/CUPolicy.c
@@ -52,18 +52,22 @@ mDNSexport mDNSBool mDNSPlatformAllowPID(mDNS *const m, DNSQuestion *q)
         }
         else
         {
-            allowed = (mDNSBool) cellular_usage_policy_is_data_allowed_for_uuid(m->p->handle, q->uuid);
-            if (!allowed)
-            {
-                xpc_object_t uuidx = xpc_uuid_create(q->uuid);
-                if (uuidx)
-                {
-                    network_config_cellular_blocked_notify(NULL, uuidx, NULL);
-                    LogInfo("mDNSPlaformAllowPID: Notified UUID for %##s (%s)", q->qname.c, DNSTypeName(q->qtype));
-                    xpc_release(uuidx);
-                }
-            }
-        }
+           xpc_object_t uuidx = xpc_uuid_create(q->uuid);
+           if (uuidx)
+           {
+               allowed = (mDNSBool) cellular_usage_policy_is_data_allowed_for_uuid(m->p->handle, uuidx);
+               if (!allowed)
+               {
+                   network_config_cellular_blocked_notify(NULL, uuidx, NULL);
+                   LogInfo("mDNSPlaformAllowPID: Notified UUID for %##s (%s)", q->qname.c, DNSTypeName(q->qtype));
+               }
+               xpc_release(uuidx);
+           }
+           else
+           {
+               allowed = false;
+           }
+       }
         return allowed;
     }
     else
diff --git a/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.helper.plist b/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.helper.plist
index a21868c..09b61e0 100644
--- a/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.helper.plist
+++ b/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.helper.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
   <key>Label</key>
-  <string>com.apple.mDNSResponderHelper</string>
+  <string>com.apple.mDNSResponderHelper.reloaded</string>
   <key>OnDemand</key>
   <true/>
   <key>ProgramArguments</key>
diff --git a/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.plist b/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.plist
index c1fe89a..4226c79 100644
--- a/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.plist
+++ b/mDNSResponder/mDNSMacOSX/LaunchDaemonInfo.plist
@@ -3,9 +3,7 @@
 <plist version="1.0">
 <dict>
 	<key>Label</key>
-	<string>com.apple.networking.mDNSResponder</string>
-    <key>Disabled</key>
-    <true/>
+	<string>com.apple.mDNSResponder.reloaded</string>
 	<key>OnDemand</key>
 	<false/>
 	<key>InitGroups</key>
diff --git a/mDNSResponder/mDNSMacOSX/Private/dns_services.c b/mDNSResponder/mDNSMacOSX/Private/dns_services.c
index a14d686..1df3b21 100644
--- a/mDNSResponder/mDNSMacOSX/Private/dns_services.c
+++ b/mDNSResponder/mDNSMacOSX/Private/dns_services.c
@@ -6,7 +6,7 @@
  * Resides in /usr/lib/libdns_services.dylib
  */
 
-#include "dns_services_mdns.h"
+#include "dns_services.h"
 #include "dns_xpc.h"
 #include <xpc/xpc.h>
 #include <Block.h>
diff --git a/mDNSResponder/mDNSMacOSX/Private/dns_services_mdns.h b/mDNSResponder/mDNSMacOSX/Private/dns_services.h
similarity index 100%
rename from mDNSResponder/mDNSMacOSX/Private/dns_services_mdns.h
rename to mDNSResponder/mDNSMacOSX/Private/dns_services.h
diff --git a/mDNSResponder/mDNSMacOSX/VPNService.c b/mDNSResponder/mDNSMacOSX/VPNService.c
index 8c1bf1d..623ddbf 100644
--- a/mDNSResponder/mDNSMacOSX/VPNService.c
+++ b/mDNSResponder/mDNSMacOSX/VPNService.c
@@ -23,13 +23,11 @@ mDNSexport mDNSs32 mDNSPlatformGetServiceID(mDNS *const m, DNSQuestion *q)
     int sid;
 
     if (q->pid)
-    {
         sid = VPNAppLayerGetMatchingServiceIdentifier(q->pid, NULL);
-    }
     else
-    {
         sid = VPNAppLayerGetMatchingServiceIdentifier(0, q->uuid);
-    }
+    
     LogInfo("mDNSPlatformGetServiceID: returning %d for %##s (%s)", sid, q->qname.c, DNSTypeName(q->qtype));
+    
     return sid;
 }
diff --git a/mDNSResponder/mDNSMacOSX/daemon.c b/mDNSResponder/mDNSMacOSX/daemon.c
index acdb68f..1b257ea 100644
--- a/mDNSResponder/mDNSMacOSX/daemon.c
+++ b/mDNSResponder/mDNSMacOSX/daemon.c
@@ -2474,10 +2474,9 @@ mDNSlocal mDNSBool AllowSleepNow(mDNS *const m, mDNSs32 now)
         }
 
         m->SleepState = SleepState_Sleeping;
-        // We used to clear our interface list to empty state here before going to sleep.
-        // The applications that try to connect to an external server during maintenance wakes, saw
-        // DNS resolution errors as we don't have any interfaces (most queries use SuppressUnusable
-        // flag). Thus, we don't remove our interfaces anymore on sleep.
+		// Clear our interface list to empty state, ready to go to sleep
+		// As a side effect of doing this, we'll also cancel any outstanding SPS Resolve calls that didn't complete
+        mDNSMacOSXNetworkChanged(m);
     }
 
     LogSPS("AllowSleepNow: %s(%lX) %s at %ld (%d ticks remaining)",
diff --git a/mDNSResponder/mDNSMacOSX/mDNSMacOSX.c b/mDNSResponder/mDNSMacOSX/mDNSMacOSX.c
index 28d73f6..f904c8b 100644
--- a/mDNSResponder/mDNSMacOSX/mDNSMacOSX.c
+++ b/mDNSResponder/mDNSMacOSX/mDNSMacOSX.c
@@ -115,7 +115,6 @@ D2DStatus D2DTerminate() __attribute__((weak_import));
 #include <IOKit/platform/IOPlatformSupportPrivate.h>
 #endif // APPLE_OSX_mDNSResponder && !TARGET_OS_EMBEDDED
 
-
 #define kInterfaceSpecificOption "interface="
 
 #define mDNS_IOREG_KEY               "mDNS_KEY"
@@ -1037,7 +1036,13 @@ mDNSexport void external_stop_resolving_service(const domainname *const fqdn, DN
 // Typically point-to-point interfaces are modems (including mobile-phone pseudo-modems), and we don't want
 // to run up the user's bill sending multicast traffic over a link where there's only a single device at the
 // other end, and that device (e.g. a modem bank) is probably not answering Multicast DNS queries anyway.
+
+// We also don't want to use multicast on *any* interface on very constrained devices.
+#if TARGET_OS_NANO
+#define MulticastInterface(i) (mDNSfalse)
+#else
 #define MulticastInterface(i) (((i)->ifa_flags & IFF_MULTICAST) && !((i)->ifa_flags & IFF_POINTOPOINT))
+#endif
 
 mDNSexport void NotifyOfElusiveBug(const char *title, const char *msg)  // Both strings are UTF-8 text
 {
@@ -1692,35 +1697,56 @@ mDNSlocal void setTrafficClass(int socketfd, mDNSBool useBackgroundTrafficClass)
     (void) setsockopt(socketfd, SOL_SOCKET, SO_TRAFFIC_CLASS, (void *)&traffic_class, sizeof(traffic_class));
 }
 
-mDNSexport void mDNSPlatformSetDelegatePID(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q)
+mDNSexport void mDNSPlatformSetuDNSSocktOpt(UDPSocket *src, const mDNSAddr *dst, DNSQuestion *q)
 {
     if (src)
     {
         int s;
 
         if (dst->type == mDNSAddrType_IPv4)
-        {
             s = src->ss.sktv4;
-        }
         else
-        {
             s = src->ss.sktv6;
-        }
 
         if (q->pid)
         {
             if (setsockopt(s, SOL_SOCKET, SO_DELEGATED, &q->pid, sizeof(q->pid)) == -1)
-            {
-                LogInfo("mDNSPlatformSetDelegatePID: Delegate PID failed %s for PID %d", strerror(errno), q->pid);
-            }
+                LogInfo("mDNSPlatformSetuDNSSocktOpt: Delegate PID failed %s for PID %d", strerror(errno), q->pid);
         }
         else
         {
             if (setsockopt(s, SOL_SOCKET, SO_DELEGATED_UUID, &q->uuid, sizeof(q->uuid)) == -1)
+                LogInfo("mDNSPlatformSetuDNSSocktOpt: Delegate UUID failed %s", strerror(errno));
+        }
+		
+#if defined(SO_NOWAKEFROMSLEEP)
+        int nowake = 1;
+        if (setsockopt(s, SOL_SOCKET, SO_NOWAKEFROMSLEEP, &nowake, sizeof(nowake)) == -1)
+            LogInfo("mDNSPlatformSetuDNSSocktOpt: SO_NOWAKEFROMSLEEP failed %s", strerror(errno));
+#endif
+	
+        if (q->DenyOnCellInterface || q->DenyOnExpInterface)
+        {
+#if defined(SO_RESTRICT_DENY_CELLULAR)
+            if (q->DenyOnCellInterface)
             {
-                LogInfo("mDNSPlatformSetDelegatePID: Delegate UUID failed %s", strerror(errno));
+                int restrictions = 0;
+                restrictions = SO_RESTRICT_DENY_CELLULAR;
+                if (setsockopt(s, SOL_SOCKET, SO_RESTRICTIONS, &restrictions, sizeof(restrictions)) == -1)
+                    LogInfo("mDNSPlatformSetuDNSSocktOpt: SO_RESTRICT_DENY_CELLULAR failed %s", strerror(errno));
             }
-        }
+#endif
+#if defined(SO_RESTRICT_DENY_EXPENSIVE)
+            if (q->DenyOnExpInterface)
+            {
+                int restrictions = 0;
+                restrictions = SO_RESTRICT_DENY_EXPENSIVE;
+                if (setsockopt(s, SOL_SOCKET, SO_RESTRICTIONS, &restrictions, sizeof(restrictions)) == -1)
+                    LogInfo("mDNSPlatformSetuDNSSocktOpt: SO_RESTRICT_DENY_EXPENSIVE failed %s", strerror(errno));
+            }
+#endif
+		}
+		
     }
 }
 
@@ -5164,6 +5190,8 @@ mDNSexport void AddNewClientTunnel(mDNS *const m, DNSQuestion *const q)
     p->q.ForceMCast       = mDNSfalse;
     p->q.ReturnIntermed   = mDNStrue;
     p->q.SuppressUnusable = mDNSfalse;
+    p->q.DenyOnCellInterface = mDNSfalse;
+    p->q.DenyOnExpInterface  = mDNSfalse;
     p->q.SearchListIndex  = 0;
     p->q.AppendSearchDomains = 0;
     p->q.RetryWithSearchDomains = mDNSfalse;
@@ -5202,6 +5230,8 @@ mDNSlocal mStatus UpdateInterfaceList(mDNS *const m, mDNSs32 utc)
     if (InfoSocket < 3 && errno != EAFNOSUPPORT) 
         LogMsg("UpdateInterfaceList: InfoSocket error %d errno %d (%s)", InfoSocket, errno, strerror(errno));
 
+    if (m->SleepState == SleepState_Sleeping) ifa = NULL;
+
     while (ifa)
     {
 #if LIST_ALL_INTERFACES
@@ -7910,13 +7940,16 @@ mDNSexport void mDNSMacOSXNetworkChanged(mDNS *const m)
 }
 
 // Called with KQueueLock & mDNS lock
+// SetNetworkChanged is allowed to extend (but not reduce) the pause while we wait for configuration changes to settle
 mDNSlocal void SetNetworkChanged(mDNS *const m, mDNSs32 delay)
 {
     if (!m->p->NetworkChanged || m->p->NetworkChanged - NonZeroTime(m->timenow + delay) < 0)
     {
         m->p->NetworkChanged = NonZeroTime(m->timenow + delay);
-        LogInfo("SetNetworkChanged: scheduling in %d msec", delay);
+        LogInfo("SetNetworkChanged: Scheduling in %d msec", delay);
     }
+    else
+        LogInfo("SetNetworkChanged: *NOT* reducing delay from %d to %d", m->p->NetworkChanged - m->timenow, delay);
 }
 
 // Called with KQueueLock & mDNS lock
@@ -7948,7 +7981,7 @@ mDNSlocal CFStringRef CopyNameFromKey(CFStringRef key)
 
 // Whether a key from a network change notification corresponds to
 // an IP service that is explicitly configured for IPv4 Link Local
-mDNSlocal mDNSBool ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
+mDNSlocal int ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
 {
     SCDynamicStoreRef store = NULL;
     CFDictionaryRef dict = NULL;
@@ -7956,7 +7989,7 @@ mDNSlocal mDNSBool ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
     const void **keys = NULL, **vals = NULL;
     CFStringRef pattern = NULL;
     int i, ic, j, jc;
-    mDNSBool found = mDNSfalse;
+    int found = 0;
 
     jc = CFArrayGetCount(inkeys);
     if (!jc) goto done;
@@ -7993,7 +8026,8 @@ mDNSlocal mDNSBool ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
     keys = mDNSPlatformMemAllocate(sizeof (void *) * ic);
     CFDictionaryGetKeysAndValues(dict, keys, vals);
 
-    for (j = 0; j < jc && !found; j++)
+    // For each key we were given...
+    for (j = 0; j < jc; j++)
     {
         CFStringRef key = CFArrayGetValueAtIndex(inkeys, j);
         CFStringRef ifname = NULL;
@@ -8010,6 +8044,7 @@ mDNSlocal mDNSBool ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
             LogInfo("ChangedKeysHaveIPv4LL: potential ifname %s", buf);
         }
 
+        // Loop over the interfaces to find matching the ifname, and see if that one has kSCValNetIPv4ConfigMethodLinkLocal
         for (i = 0; i < ic; i++)
         {
             CFDictionaryRef ipv4dict;
@@ -8049,7 +8084,7 @@ mDNSlocal mDNSBool ChangedKeysHaveIPv4LL(CFArrayRef inkeys)
                 LogInfo("ChangedKeysHaveIPv4LL: configmethod %s", buf);
             }
 
-            if (CFEqual(configmethod, kSCValNetIPv4ConfigMethodLinkLocal)) { found = mDNStrue; break; }
+            if (CFEqual(configmethod, kSCValNetIPv4ConfigMethodLinkLocal)) { found++; break; }
         }
 
         CFRelease(ifname);
@@ -8067,7 +8102,6 @@ done:
 mDNSlocal void NetworkChanged(SCDynamicStoreRef store, CFArrayRef changedKeys, void *context)
 {
     (void)store;        // Parameter not used
-    mDNSBool changeNow = mDNSfalse;
     mDNS *const m = (mDNS *const)context;
     KQueueLock(m);
     mDNS_Lock(m);
@@ -8078,10 +8112,11 @@ mDNSlocal void NetworkChanged(SCDynamicStoreRef store, CFArrayRef changedKeys, v
     CFRange range = { 0, c };
     int c1 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_Hostnames   ) != 0);
     int c2 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_Computername) != 0);
-    int c3 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_DynamicDNS  ) != 0);
-    int c4 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_DNS         ) != 0);
-    if (c && c - c1 - c2 - c3 - c4 == 0)
-        delay = mDNSPlatformOneSecond/10;  // If these were the only changes, shorten delay
+    int c3 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_DNS         ) != 0);
+    int c4 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_DynamicDNS  ) != 0);
+    int c5 = (CFArrayContainsValue(changedKeys, range, NetworkChangedKey_BackToMyMac ) != 0);
+    int c6 = ChangedKeysHaveIPv4LL(changedKeys);
+    int c7 = 0;
 
     // Do immediate network changed processing for "p2p*" interfaces and
     // for interfaces with the IFEF_DIRECTLINK flag set.
@@ -8116,8 +8151,8 @@ mDNSlocal void NetworkChanged(SCDynamicStoreRef store, CFArrayRef changedKeys, v
                 if (CFStringGetCString(CFArrayGetValueAtIndex(labels, 3), buf, sizeof(buf), kCFStringEncodingUTF8)
                     && (strstr(buf, "p2p") || (getExtendedFlags(buf) & IFEF_DIRECTLINK)))
                 {
-                    LogInfo("NetworkChanged: interface %s, not delaying network change", buf);
-                    changeNow = mDNStrue;
+                    LogInfo("NetworkChanged: interface %s qualifies for reduced change handling delay", buf);
+                    c7++;
                     CFRelease(labels);
                     break;
                 }
@@ -8126,8 +8161,22 @@ mDNSlocal void NetworkChanged(SCDynamicStoreRef store, CFArrayRef changedKeys, v
         }
     }
 
-    mDNSBool btmmChanged = CFArrayContainsValue(changedKeys, range, NetworkChangedKey_BackToMyMac);
-    if (btmmChanged) delay = 0;
+    if (c && c - c1 - c2 - c3 - c4 - c5 - c6 - c7 == 0)
+        delay = mDNSPlatformOneSecond/10;  // If these were the only changes, shorten delay
+
+    // Immediately force a reconfig (esp. cache flush) if any of the following is true:
+    // 1. DNS Settings changed.
+    // 2  An interface changed that is explicitly IPv4 link local
+    // 3. There are P2P/IFEF_DIRECTLINK/IsCarPlaySSID changes
+    if (c3 || ChangedKeysHaveIPv4LL(changedKeys) || c7)
+    {
+        LogInfo("NetworkChanged: %s : Handling this change immediately",
+                c3 ? "DNS Settings Changed" :
+                c7 ? "P2P/IFEF_DIRECTLINK/IsCarPlaySSID Changed" :
+                "An interface changed that is explicitly IPv4 link local");
+        m->p->NetworkChanged = NonZeroTime(m->timenow);
+        delay = 0; // for the logs below.
+    }
 
     if (mDNS_LoggingEnabled)
     {
@@ -8138,32 +8187,31 @@ mDNSlocal void NetworkChanged(SCDynamicStoreRef store, CFArrayRef changedKeys, v
             if (!CFStringGetCString(CFArrayGetValueAtIndex(changedKeys, i), buf, sizeof(buf), kCFStringEncodingUTF8)) buf[0] = 0;
             LogInfo("***   NetworkChanged SC key: %s", buf);
         }
-        LogInfo("***   NetworkChanged   *** %d change%s %s%s%s%sdelay %d",
+        LogInfo("***   NetworkChanged   *** %d change%s %s%s%s%s%s%s%sdelay %d%s",
                 c, c>1 ? "s" : "",
                 c1 ? "(Local Hostname) " : "",
                 c2 ? "(Computer Name) "  : "",
-                c3 ? "(DynamicDNS) "     : "",
-                c4 ? "(DNS) "            : "",
-                changeNow ? 0 : delay);
+                c3 ? "(DNS) "            : "",
+                c4 ? "(DynamicDNS) "     : "",
+                c5 ? "(BTMM) "           : "",
+                c6 ? "(kSCValNetIPv4ConfigMethodLinkLocal) " : "",
+                c7 ? "(P2P/IFEF_DIRECTLINK/IsCarPlaySSID) "  : "",
+                delay,
+                (c4 || c5) ? " + SetKeyChainTimer" : "");
     }
 
-    if (!changeNow)
-        SetNetworkChanged(m, delay);
+    SetNetworkChanged(m, delay);
 
     // Other software might pick up these changes to register or browse in WAB or BTMM domains,
     // so in order for secure updates to be made to the server, make sure to read the keychain and
     // setup the DomainAuthInfo before handing the network change.
     // If we don't, then we will first try to register services in the clear, then later setup the
     // DomainAuthInfo, which is incorrect.
-    if (c3 || btmmChanged)
+    if (c4 || c5)
         SetKeyChainTimer(m, delay);
 
     mDNS_Unlock(m);
 
-    // If DNS settings changed, immediately force a reconfig (esp. cache flush)
-    // Similarly, if an interface changed that is explicitly IPv4 link local, immediately force a reconfig
-    if (c4 || ChangedKeysHaveIPv4LL(changedKeys) || changeNow) mDNSMacOSXNetworkChanged(m);
-
     KQueueUnlock(m, "NetworkChanged");
 }
 
@@ -8781,9 +8829,7 @@ mDNSlocal void PowerChanged(void *refcon, io_service_t service, natural_t messag
         // the System Configuration Framework "network changed" event that we expect
         // to receive some time shortly after the kIOMessageSystemWillPowerOn message
         mDNS_Lock(m);
-        if (!m->p->NetworkChanged ||
-            m->p->NetworkChanged - NonZeroTime(m->timenow + mDNSPlatformOneSecond * 2) < 0)
-            m->p->NetworkChanged = NonZeroTime(m->timenow + mDNSPlatformOneSecond * 2);
+        SetNetworkChanged(m, mDNSPlatformOneSecond * 2);
         mDNS_Unlock(m);
 
         break;
@@ -8839,13 +8885,16 @@ mDNSlocal void SnowLeopardPowerChanged(void *refcon, IOPMConnection connection,
             m->SleepLimit = 0;
         }
         LogSPS("SnowLeopardPowerChanged: Waking up, Acking Wakeup, SleepLimit %d SleepState %d", m->SleepLimit, m->SleepState);
-        // If the network notifications have already come before we got the wakeup, we ignored them and
-        // in case we get no more, we need to trigger one.
-        mDNS_Lock(m);
-        SetNetworkChanged(m, 2 * mDNSPlatformOneSecond);
-        mDNS_Unlock(m);
         // CPU Waking. Note: Can get this message repeatedly, as other subsystems power up or down.
-        if (m->SleepState != SleepState_Awake) PowerOn(m);
+        if (m->SleepState != SleepState_Awake)
+        {
+			PowerOn(m);
+			// If the network notifications have already come before we got the wakeup, we ignored them and
+			// in case we get no more, we need to trigger one.
+			mDNS_Lock(m);
+			SetNetworkChanged(m, mDNSPlatformOneSecond * 2);
+			mDNS_Unlock(m);
+        }
         IOPMConnectionAcknowledgeEvent(connection, token);
     }
     else
@@ -10415,9 +10464,37 @@ mDNSexport void mDNSPlatformDispatchAsync(mDNS *const m, void *context, AsyncDis
 #define OSX_VER_LEN     strlen(OSX_VER) 
 #define VER_NUM_LEN     2  // 2 digits of version number added to base string
 
+#define MODEL_COLOR           "ecolor="
+#define MODEL_COLOR_LEN       strlen(MODEL_COLOR)
+#define MODEL_RGB_VALUE_LEN   strlen("255,255,255") // 'r,g,b'
+
 // Bytes available in TXT record for model name after subtracting space for other 
 // fixed size strings and their length bytes.
-#define MAX_MODEL_NAME_LEN   (256 - (DEVINFO_MODEL_LEN + 1) - (OSX_VER_LEN + VER_NUM_LEN + 1))
+#define MAX_MODEL_NAME_LEN   (256 - (DEVINFO_MODEL_LEN + 1) - (OSX_VER_LEN + VER_NUM_LEN + 1) - (MODEL_COLOR_LEN + MODEL_RGB_VALUE_LEN + 1))
+
+mDNSlocal mDNSBool getModelIconColors(char *color)
+{
+	mDNSBool hasColor = mDNSfalse;
+	mDNSPlatformMemZero(color, MODEL_RGB_VALUE_LEN + 1);
+	
+#if !TARGET_OS_EMBEDDED && defined(kIOPlatformDeviceEnclosureColorKey)
+	mDNSu8   red      = 0;
+	mDNSu8   green    = 0;
+	mDNSu8   blue     = 0;
+
+	IOReturn rGetDeviceColor = IOPlatformGetDeviceColor(kIOPlatformDeviceEnclosureColorKey,
+														&red, &green, &blue);
+	if (kIOReturnSuccess == rGetDeviceColor)
+	{
+		// IOKit was able to get enclosure color for the current device.
+		hasColor = true;
+		snprintf(color, MODEL_RGB_VALUE_LEN + 1, "%d,%d,%d", red, green, blue);
+	}
+#endif // !TARGET_OS_EMBEDDED && defined(kIOPlatformDeviceEnclosureColorKey)
+	
+	return hasColor;
+}
+
 
 // Initialize device-info TXT record contents and return total length of record data.
 mDNSexport mDNSu32 initializeDeviceInfoTXT(mDNS *m, mDNSu8 *ptr)
@@ -10444,7 +10521,24 @@ mDNSexport mDNSu32 initializeDeviceInfoTXT(mDNS *m, mDNSu8 *ptr)
         snprintf(ver_num, VER_NUM_LEN + 1, "%d", OSXVers);
         mDNSPlatformMemCopy(ptr, ver_num, VER_NUM_LEN);
         ptr += VER_NUM_LEN;
+		
+		char rgb[MODEL_RGB_VALUE_LEN + 1]; // RGB value + null written by snprintf
+		if (getModelIconColors(rgb))
+		{
+			len = strlen(rgb);
+			*ptr = MODEL_COLOR_LEN + len; // length byte
+			ptr++;
+		
+			mDNSPlatformMemCopy(ptr, MODEL_COLOR, MODEL_COLOR_LEN);
+			ptr += MODEL_COLOR_LEN;
+			
+			mDNSPlatformMemCopy(ptr, rgb, len);
+			ptr += len;
+		}
     }
 
     return (ptr - bufferStart);
 }
+
+
+
diff --git a/mDNSResponder/mDNSMacOSX/mDNSResponder-entitlements.plist b/mDNSResponder/mDNSMacOSX/mDNSResponder-entitlements.plist
index bb3f05e..21a343f 100644
--- a/mDNSResponder/mDNSMacOSX/mDNSResponder-entitlements.plist
+++ b/mDNSResponder/mDNSMacOSX/mDNSResponder-entitlements.plist
@@ -20,5 +20,13 @@
     <true/>
     <key>com.apple.telephony.cupolicy-monitor-access</key>
     <true/>
+    <key>com.apple.private.necp.match</key>
+    <true/>
+    <key>com.apple.security.network.server</key>
+    <true/>
+    <key>com.apple.security.network.client</key>
+    <true/>
+    <key>com.apple.private.network.awdl.restricted</key>
+    <true/>
 </dict>
 </plist>
diff --git a/mDNSResponder/mDNSMacOSX/mDNSResponder.sb b/mDNSResponder/mDNSMacOSX/mDNSResponder.sb
index eee623c..f267f32 100644
--- a/mDNSResponder/mDNSMacOSX/mDNSResponder.sb
+++ b/mDNSResponder/mDNSMacOSX/mDNSResponder.sb
@@ -46,6 +46,7 @@
 ; These are needed for things like getpwnam, hostname changes, & keychain
 (allow mach-lookup
        (global-name "com.apple.bsd.dirhelper")
+       (global-name "com.apple.CoreServices.coreservicesd")
        (global-name "com.apple.distributed_notifications.2")
        (global-name "com.apple.ocspd")
        (global-name "com.apple.PowerManagement.control")
@@ -135,7 +136,10 @@
        (regex #"^/private/var/folders/[^/]+/[^/]+/C/mds(/|$)")
 
        ; Required on 10.5 and 10.6
-       (regex #"^/private/var/folders/[^/]+/[^/]+/-Caches-/mds(/|$)"))
+       (regex #"^/private/var/folders/[^/]+/[^/]+/-Caches-/mds(/|$)")
+
+       ; Required on 10.10.4
+       (regex #"^/private/var/folders/[^/]+/[^/]+/[0-9]+(/|$)"))
 
 ; CRL Cache for SSL/TLS connections
 (allow file-read-data (literal "/private/var/db/crls/crlcache.db"))
diff --git a/mDNSResponder/mDNSMacOSX/mDNSResponder.xcodeproj/project.pbxproj b/mDNSResponder/mDNSMacOSX/mDNSResponder.xcodeproj/project.pbxproj
index 7831e19..39d8a45 100644
--- a/mDNSResponder/mDNSMacOSX/mDNSResponder.xcodeproj/project.pbxproj
+++ b/mDNSResponder/mDNSMacOSX/mDNSResponder.xcodeproj/project.pbxproj
@@ -25,11 +25,16 @@
 			isa = PBXAggregateTarget;
 			buildConfigurationList = 03067D730C83A3CB0022BE1F /* Build configuration list for PBXAggregateTarget "Build Some" */;
 			buildPhases = (
+				FF045B6A0C7E4AA600448140 /* ShellScript */,
 			);
 			dependencies = (
 				217A4C49138EE14C000A5BA8 /* PBXTargetDependency */,
+				03067D680C83A3830022BE1F /* PBXTargetDependency */,
+				03067D6A0C83A3890022BE1F /* PBXTargetDependency */,
 				03067D6C0C83A3920022BE1F /* PBXTargetDependency */,
+				03067D6E0C83A39C0022BE1F /* PBXTargetDependency */,
 				84C5B3411665544B00C324A8 /* PBXTargetDependency */,
+				BD7833F01ABA5E3500EC51ED /* PBXTargetDependency */,
 			);
 			name = "Build Some";
 			productName = "Build Some";
@@ -59,19 +64,6 @@
 			name = SystemLibrariesStatic;
 			productName = SystemLibrariesStatic;
 		};
-		3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */ = {
-			isa = PBXAggregateTarget;
-			buildConfigurationList = 3F2EAAA11A5B85FF007F5A52 /* Build configuration list for PBXAggregateTarget "Build Deprecated" */;
-			buildPhases = (
-			);
-			dependencies = (
-				3F2EAAA71A5B861D007F5A52 /* PBXTargetDependency */,
-				3F2EAAA51A5B861C007F5A52 /* PBXTargetDependency */,
-				3F2EAAA91A5B861E007F5A52 /* PBXTargetDependency */,
-			);
-			name = "Build Deprecated";
-			productName = "Build Deprecated";
-		};
 		FFA572650AF190F10055A0F1 /* SystemLibrariesDynamic */ = {
 			isa = PBXAggregateTarget;
 			buildConfigurationList = FFA5726E0AF191200055A0F1 /* Build configuration list for PBXAggregateTarget "SystemLibrariesDynamic" */;
@@ -92,7 +84,6 @@
 			);
 			dependencies = (
 				FFB7657D0AEED97F00583A2C /* PBXTargetDependency */,
-				3F2EAAA31A5B8608007F5A52 /* PBXTargetDependency */,
 				2141DCFD123FFB7D0086D23E /* PBXTargetDependency */,
 			);
 			name = "Build All";
@@ -210,7 +201,7 @@
 		848DA5D616547F7200D2E8B4 /* dns_xpc.h in Headers */ = {isa = PBXBuildFile; fileRef = 848DA5D516547F7200D2E8B4 /* dns_xpc.h */; };
 		848DA5D716547F7200D2E8B4 /* dns_xpc.h in Headers */ = {isa = PBXBuildFile; fileRef = 848DA5D516547F7200D2E8B4 /* dns_xpc.h */; };
 		84C5B33C166553F100C324A8 /* dns_services.c in Sources */ = {isa = PBXBuildFile; fileRef = 84C5B339166553AF00C324A8 /* dns_services.c */; };
-		84F4C090188F050200D1E1DE /* dns_services_mdns.h in Headers */ = {isa = PBXBuildFile; fileRef = 84F4C08F188F04CF00D1E1DE /* dns_services_mdns.h */; settings = {ATTRIBUTES = (Private, ); }; };
+		84F4C090188F050200D1E1DE /* dns_services.h in Headers */ = {isa = PBXBuildFile; fileRef = 84F4C08F188F04CF00D1E1DE /* dns_services.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		D284BE530ADD80740027CCDF /* DNSServiceDiscoveryDefines.h in Headers */ = {isa = PBXBuildFile; fileRef = 6575FBFF022EAFBA00000109 /* DNSServiceDiscoveryDefines.h */; };
 		D284BE540ADD80740027CCDF /* dnssd_ipc.h in Headers */ = {isa = PBXBuildFile; fileRef = F5E11B5B04A28126019798ED /* dnssd_ipc.h */; };
 		D284BE560ADD80740027CCDF /* DNSServiceDiscoveryReply.defs in Sources */ = {isa = PBXBuildFile; fileRef = 6575FC00022EAFBA00000109 /* DNSServiceDiscoveryReply.defs */; settings = {ATTRIBUTES = (Client, ); }; };
@@ -347,6 +338,20 @@
 /* End PBXBuildRule section */
 
 /* Begin PBXContainerItemProxy section */
+		03067D670C83A3830022BE1F /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = D284BE500ADD80740027CCDF;
+			remoteInfo = mDNSResponder;
+		};
+		03067D690C83A3890022BE1F /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = D284BE750ADD80800027CCDF;
+			remoteInfo = "mDNSResponder debug";
+		};
 		03067D6B0C83A3920022BE1F /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
@@ -354,6 +359,13 @@
 			remoteGlobalIDString = D284BEA50ADD80920027CCDF;
 			remoteInfo = "dns-sd tool";
 		};
+		03067D6D0C83A39C0022BE1F /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 2E0405EF0C31955500F13B59;
+			remoteInfo = mDNSResponderHelper;
+		};
 		03067D850C849CC30022BE1F /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
@@ -410,34 +422,6 @@
 			remoteGlobalIDString = 213FB21712028A7A002B3A08;
 			remoteInfo = BonjourEvents;
 		};
-		3F2EAAA21A5B8608007F5A52 /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
-			proxyType = 1;
-			remoteGlobalIDString = 3F2EAA9F1A5B85FF007F5A52;
-			remoteInfo = "Build Deprecated";
-		};
-		3F2EAAA41A5B861C007F5A52 /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
-			proxyType = 1;
-			remoteGlobalIDString = D284BE750ADD80800027CCDF;
-			remoteInfo = "mDNSResponder debug";
-		};
-		3F2EAAA61A5B861D007F5A52 /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
-			proxyType = 1;
-			remoteGlobalIDString = D284BE500ADD80740027CCDF;
-			remoteInfo = mDNSResponder;
-		};
-		3F2EAAA81A5B861E007F5A52 /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
-			proxyType = 1;
-			remoteGlobalIDString = 2E0405EF0C31955500F13B59;
-			remoteInfo = mDNSResponderHelper;
-		};
 		4AE471690EAFF83800A6C5AD /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
@@ -452,6 +436,13 @@
 			remoteGlobalIDString = 84C5B3341665529800C324A8;
 			remoteInfo = dns_services;
 		};
+		BD7833EF1ABA5E3500EC51ED /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 72FB545E166D5FB00090B2D9;
+			remoteInfo = dnsctl;
+		};
 		D284BF2B0ADD815A0027CCDF /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
@@ -679,9 +670,9 @@
 		848DA5C6165477E000D2E8B4 /* xpc_services.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = xpc_services.c; path = Private/xpc_services.c; sourceTree = "<group>"; };
 		848DA5C9165477EB00D2E8B4 /* xpc_services.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = xpc_services.h; path = Private/xpc_services.h; sourceTree = "<group>"; };
 		848DA5D516547F7200D2E8B4 /* dns_xpc.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = dns_xpc.h; path = Private/dns_xpc.h; sourceTree = "<group>"; };
-		84C5B3351665529800C324A8 /* libdns_services_mdns.dylib */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.dylib"; includeInIndex = 0; path = libdns_services_mdns.dylib; sourceTree = BUILT_PRODUCTS_DIR; };
+		84C5B3351665529800C324A8 /* libdns_services.dylib */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.dylib"; includeInIndex = 0; path = libdns_services.dylib; sourceTree = BUILT_PRODUCTS_DIR; };
 		84C5B339166553AF00C324A8 /* dns_services.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; name = dns_services.c; path = Private/dns_services.c; sourceTree = "<group>"; };
-		84F4C08F188F04CF00D1E1DE /* dns_services_mdns.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = dns_services_mdns.h; path = Private/dns_services_mdns.h; sourceTree = "<group>"; };
+		84F4C08F188F04CF00D1E1DE /* dns_services.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = dns_services.h; path = Private/dns_services.h; sourceTree = "<group>"; };
 		D284BE730ADD80740027CCDF /* mDNSResponder */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = mDNSResponder; sourceTree = BUILT_PRODUCTS_DIR; };
 		D284BE950ADD80800027CCDF /* mDNSResponder.debug */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = mDNSResponder.debug; sourceTree = BUILT_PRODUCTS_DIR; };
 		D284BEB00ADD80920027CCDF /* dns-sd */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = "dns-sd"; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -930,7 +921,7 @@
 		08FB7795FE84155DC02AAC07 /* mDNS Server Sources */ = {
 			isa = PBXGroup;
 			children = (
-				84F4C08F188F04CF00D1E1DE /* dns_services_mdns.h */,
+				84F4C08F188F04CF00D1E1DE /* dns_services.h */,
 				216D9ACD1720C9F5008066E1 /* VPNService.c */,
 				2120ABD416B71614007089B6 /* CUPolicy.c */,
 				72FB545A166D5F960090B2D9 /* dnsctl.c */,
@@ -1046,7 +1037,7 @@
 				2141DD1D123FFCDB0086D23E /* libdns_sd.a */,
 				2141DD24123FFD0F0086D23E /* libdns_sd_debug.a */,
 				2141DD2A123FFD2C0086D23E /* libdns_sd_profile.a */,
-				84C5B3351665529800C324A8 /* libdns_services_mdns.dylib */,
+				84C5B3351665529800C324A8 /* libdns_services.dylib */,
 				72FB545F166D5FB00090B2D9 /* dnsctl */,
 			);
 			name = Products;
@@ -1181,7 +1172,7 @@
 			isa = PBXHeadersBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				84F4C090188F050200D1E1DE /* dns_services_mdns.h in Headers */,
+				84F4C090188F050200D1E1DE /* dns_services.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1432,7 +1423,7 @@
 			);
 			name = dns_services;
 			productName = dns_services;
-			productReference = 84C5B3351665529800C324A8 /* libdns_services_mdns.dylib */;
+			productReference = 84C5B3351665529800C324A8 /* libdns_services.dylib */;
 			productType = "com.apple.product-type.library.dynamic";
 		};
 		D284BE500ADD80740027CCDF /* mDNSResponder */ = {
@@ -1642,11 +1633,6 @@
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				TargetAttributes = {
-					3F2EAA9F1A5B85FF007F5A52 = {
-						CreatedOnToolsVersion = 6.3;
-					};
-				};
 			};
 			buildConfigurationList = D284BE2B0ADD78180027CCDF /* Build configuration list for PBXProject "mDNSResponder" */;
 			compatibilityVersion = "Xcode 3.1";
@@ -1664,7 +1650,6 @@
 			targets = (
 				00AD62BB032D7A0C0CCA2C71 /* Build More */,
 				03067D640C83A3700022BE1F /* Build Some */,
-				3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */,
 				FFB7657B0AEED96B00583A2C /* Build All */,
 				D284BE500ADD80740027CCDF /* mDNSResponder */,
 				D284BE750ADD80800027CCDF /* mDNSResponder debug */,
@@ -1841,7 +1826,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 1;
 			shellPath = /bin/bash;
-			shellScript = "# Install mDNSResponder.bundle containing language localizations\nmkdir -p ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices\ncp -R ${SRCROOT}/mDNSResponder-bundle ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle\n\n# Remove unwanted CVS directories\nfind ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle -depth -name CVS -exec rm -rf {} \\;\n\n# Expand UTF-8 files to UTF-16 (at one time this appeared to be necessary, but it's not, so we don't do it any more)\n#foreach file (`find ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle -name Localizable.strings`)\n#iconv -f utf-8 -t utf-16 ${file} > ${file}.new\n#mv -f ${file}.new ${file}\n#end\n\n# Remove French localization (not wanted for Apple B&I builds)\nrm -rf ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle/Resources/French.lproj\n\n# Copy Sandbox profile\nif [ ! -z \"${IPHONEOS_DEPLOYMENT_TARGET}\" ] ; then\n  SANDBOXDST=\"${DSTROOT}/usr/local/share/san
 dbox/profiles/embedded/builtin\"\nelse\n  SANDBOXDST=\"${DSTROOT}/usr/share/sandbox\"\nfi\n(umask 022; mkdir -p -m 0755 \"$SANDBOXDST\")\ncp \"${SRCROOT}/mDNSResponder.sb\" \"${SANDBOXDST}/mDNSResponder.sb\"\n";
+			shellScript = "# Install mDNSResponder.bundle containing language localizations\nmkdir -p ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices\ncp -R ${SRCROOT}/mDNSResponder-bundle ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle\n\n# Remove unwanted CVS directories\nfind ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle -depth -name CVS -exec rm -rf {} \\;\n\n# Expand UTF-8 files to UTF-16 (at one time this appeared to be necessary, but it's not, so we don't do it any more)\n#foreach file (`find ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle -name Localizable.strings`)\n#iconv -f utf-8 -t utf-16 ${file} > ${file}.new\n#mv -f ${file}.new ${file}\n#end\n\n# Remove French localization (not wanted for Apple B&I builds)\nrm -rf ${DSTROOT}${SYSTEM_LIBRARY_DIR}/CoreServices/mDNSResponder.bundle/Resources/French.lproj\n\n# Copy Sandbox profile\nif [ -z \"${IPHONEOS_DEPLOYMENT_TARGET}\" -a -z \"${TVOS_DEPLOYMENT_TARGET}\"  ] ; then\n    SANDBO
 XDST=\"${DSTROOT}/usr/share/sandbox\"\nelse\n    SANDBOXDST=\"${DSTROOT}/usr/local/share/sandbox/profiles/embedded/builtin\"\nfi\n(umask 022; mkdir -p -m 0755 \"$SANDBOXDST\")\ncp \"${SRCROOT}/mDNSResponder.sb\" \"${SANDBOXDST}/mDNSResponder.sb\"\n";
 		};
 		D284BE760ADD80800027CCDF /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -1852,6 +1837,19 @@
 			shellPath = /bin/sh;
 			shellScript = "if [ -e \"${SDKROOT}/usr/local/include/dnsinfo.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/dnsinfo.h\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/libdnsinfo.a\"\nelse\necho \"#define MDNS_NO_DNSINFO 1\" > ${CONFIGURATION_TEMP_DIR}/dnsinfo.h\ntouch \"${CONFIGURATION_TEMP_DIR}/empty.c\"\nfor i in ${ARCHS}\ndo\nccflags=\"-arch $i $ccflags\"\ndone\ncc ${ccflags} \"${CONFIGURATION_TEMP_DIR}/empty.c\" -c -o \"${CONFIGURATION_TEMP_DIR}/libdnsinfo.a\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/empty.c\"\nfi\n\nif [ -e \"${SDKROOT}/usr/include/sandbox.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/sandbox.h\"\nelse\necho \"#define MDNS_NO_SANDBOX 1\" > \"${CONFIGURATION_TEMP_DIR}/sandbox.h\"\nfi\n\nif [ -e \"${SDKROOT}/usr/local/include/vproc.h\" -o -e \"${SDKROOT}/usr/include/vproc.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/vproc.h\"\nelse\ntouch \"${CONFIGURATION_TEMP_DIR}/vproc.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/Frameworks/IOKit.framework/PrivateHeaders/pwr_mgt/IOPMLi
 bPrivate.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/IOKit\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/IOKit/pwr_mgt\"\ntouch \"${CONFIGURATION_TEMP_DIR}/IOKit/pwr_mgt/IOPMLibPrivate.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/PrivateFrameworks/DeviceToDeviceManager.framework/Headers/DeviceToDeviceManager.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager\"\necho \"#define NO_D2D 1\" > \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager/DeviceToDeviceManager.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/PrivateFrameworks/WebFilterDNS.framework/Headers/WebFilterDNS.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS\"\necho \"#define NO_WCF 1\" > \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS/WebFilterDNS.h\"\nfi\n\nif [ -e \"${SDKROOT}/usr/local/include/AWACS.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/AWACS.h\"\nrm -f \"${CO
 NFIGURATION_TEMP_DIR}/libAWACS.a\"\nelse\necho \"#def ine NO_AWACS 1\" > \"${CONFIGURATION_TEMP_DIR}/AWACS.h\"\ntouch \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\"\nfor i in ${ARCHS}\ndo\nccflags=\"-arch $i $ccflags\"\ndone\ncc ${ccflags} \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\" -c -o \"${CONFIGURATION_TEMP_DIR}/libAWACS.a\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\"\nfi";
 		};
+		FF045B6A0C7E4AA600448140 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 8;
+			files = (
+			);
+			inputPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+			shellPath = /bin/sh;
+			shellScript = "# Install plists to tell launchd how to start mDNSResponder and mDNSResponderHelper\nmkdir -p ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons\n\nif [ \"${MACOSX_DEPLOYMENT_TARGET}\" == \"10.4\" ] ; then\ncp ${SRCROOT}/LaunchDaemonInfo-Tiger.plist        ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponder.plist\ncp ${SRCROOT}/LaunchDaemonInfo-Tiger.helper.plist ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponderHelper.plist\nelse\ncp ${SRCROOT}/LaunchDaemonInfo.plist              ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponder.plist\ncp ${SRCROOT}/LaunchDaemonInfo.helper.plist       ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponderHelper.plist\nfi\n\nif [ ! -z \"${IPHONEOS_DEPLOYMENT_TARGET}\" ] ; then\nplutil -convert binary1 ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponder.plist\nplutil -convert binary1 ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSRespon
 derHelper.plist\nfi\n";
+		};
 		FF37FAAD0BC581780044A5CF /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 8;
@@ -2105,11 +2103,26 @@
 /* End PBXSourcesBuildPhase section */
 
 /* Begin PBXTargetDependency section */
+		03067D680C83A3830022BE1F /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = D284BE500ADD80740027CCDF /* mDNSResponder */;
+			targetProxy = 03067D670C83A3830022BE1F /* PBXContainerItemProxy */;
+		};
+		03067D6A0C83A3890022BE1F /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = D284BE750ADD80800027CCDF /* mDNSResponder debug */;
+			targetProxy = 03067D690C83A3890022BE1F /* PBXContainerItemProxy */;
+		};
 		03067D6C0C83A3920022BE1F /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = D284BEA50ADD80920027CCDF /* dns-sd tool */;
 			targetProxy = 03067D6B0C83A3920022BE1F /* PBXContainerItemProxy */;
 		};
+		03067D6E0C83A39C0022BE1F /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 2E0405EF0C31955500F13B59 /* mDNSResponderHelper */;
+			targetProxy = 03067D6D0C83A39C0022BE1F /* PBXContainerItemProxy */;
+		};
 		03067D860C849CC30022BE1F /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = 03067D640C83A3700022BE1F /* Build Some */;
@@ -2150,26 +2163,6 @@
 			target = 213FB21712028A7A002B3A08 /* BonjourEvents */;
 			targetProxy = 217A4C48138EE14C000A5BA8 /* PBXContainerItemProxy */;
 		};
-		3F2EAAA31A5B8608007F5A52 /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			target = 3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */;
-			targetProxy = 3F2EAAA21A5B8608007F5A52 /* PBXContainerItemProxy */;
-		};
-		3F2EAAA51A5B861C007F5A52 /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			target = D284BE750ADD80800027CCDF /* mDNSResponder debug */;
-			targetProxy = 3F2EAAA41A5B861C007F5A52 /* PBXContainerItemProxy */;
-		};
-		3F2EAAA71A5B861D007F5A52 /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			target = D284BE500ADD80740027CCDF /* mDNSResponder */;
-			targetProxy = 3F2EAAA61A5B861D007F5A52 /* PBXContainerItemProxy */;
-		};
-		3F2EAAA91A5B861E007F5A52 /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			target = 2E0405EF0C31955500F13B59 /* mDNSResponderHelper */;
-			targetProxy = 3F2EAAA81A5B861E007F5A52 /* PBXContainerItemProxy */;
-		};
 		4AE4716A0EAFF83800A6C5AD /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = 4AE471670EAFF81900A6C5AD /* dns_sd.jar */;
@@ -2180,6 +2173,11 @@
 			target = 84C5B3341665529800C324A8 /* dns_services */;
 			targetProxy = 84C5B3401665544B00C324A8 /* PBXContainerItemProxy */;
 		};
+		BD7833F01ABA5E3500EC51ED /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 72FB545E166D5FB00090B2D9 /* dnsctl */;
+			targetProxy = BD7833EF1ABA5E3500EC51ED /* PBXContainerItemProxy */;
+		};
 		D284BF2C0ADD815A0027CCDF /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = D284BEBF0ADD80A20027CCDF /* dnsextd */;
@@ -2390,13 +2388,6 @@
 			};
 			name = Development;
 		};
-		3F2EAAA01A5B85FF007F5A52 /* Development */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				PRODUCT_NAME = "$(TARGET_NAME)";
-			};
-			name = Development;
-		};
 		4AE471680EAFF81900A6C5AD /* Development */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -2438,7 +2429,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				INSTALL_PATH = /usr/bin;
+				INSTALL_PATH = /usr/local/bin;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				ONLY_ACTIVE_ARCH = NO;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -2475,7 +2466,7 @@
 				INSTALL_PATH = /usr/lib;
 				MACOSX_DEPLOYMENT_TARGET = 10.8;
 				ONLY_ACTIVE_ARCH = NO;
-				PRODUCT_NAME = "$(TARGET_NAME)_mdns";
+				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 			};
 			name = Development;
@@ -2976,14 +2967,6 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Development;
 		};
-		3F2EAAA11A5B85FF007F5A52 /* Build configuration list for PBXAggregateTarget "Build Deprecated" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				3F2EAAA01A5B85FF007F5A52 /* Development */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Development;
-		};
 		4AE471770EAFF84000A6C5AD /* Build configuration list for PBXLegacyTarget "dns_sd.jar" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
diff --git a/mDNSResponder/mDNSPosix/mDNSPosix.c b/mDNSResponder/mDNSPosix/mDNSPosix.c
index bdfb71f..1ff9837 100755
--- a/mDNSResponder/mDNSPosix/mDNSPosix.c
+++ b/mDNSResponder/mDNSPosix/mDNSPosix.c
@@ -915,6 +915,10 @@ mDNSlocal int SetupOneInterface(mDNS *const m, struct sockaddr *intfAddr, struct
     // If interface is a direct link, address record will be marked as kDNSRecordTypeKnownUnique
     // and skip the probe phase of the probe/announce packet sequence.
     intf->coreIntf.DirectLink = mDNSfalse;
+#ifdef DIRECTLINK_INTERFACE_NAME
+	if (strcmp(intfName, STRINGIFY(DIRECTLINK_INTERFACE_NAME)) == 0)
+		intf->coreIntf.DirectLink = mDNStrue;
+#endif
 
     // The interface is all ready to go, let's register it with the mDNS core.
     if (err == 0)
diff --git a/mDNSResponder/mDNSShared/dns_sd.h b/mDNSResponder/mDNSShared/dns_sd.h
index c51156a..3831527 100644
--- a/mDNSResponder/mDNSShared/dns_sd.h
+++ b/mDNSResponder/mDNSShared/dns_sd.h
@@ -66,7 +66,7 @@
  */
 
 #ifndef _DNS_SD_H
-#define _DNS_SD_H 5670000
+#define _DNS_SD_H 5763004
 
 #ifdef  __cplusplus
 extern "C" {
@@ -1961,6 +1961,7 @@ DNSServiceErrorType DNSSD_API DNSServiceReconfirmRecord
     const void                         *rdata
 );
 
+
 /*********************************************************************************************
 *
 *  NAT Port Mapping
diff --git a/mDNSResponder/mDNSShared/dnssd_clientshim.c b/mDNSResponder/mDNSShared/dnssd_clientshim.c
index 78322fa..f699729 100644
--- a/mDNSResponder/mDNSShared/dnssd_clientshim.c
+++ b/mDNSResponder/mDNSShared/dnssd_clientshim.c
@@ -817,4 +817,5 @@ DNSServiceErrorType DNSSD_API DNSServiceReconfirmRecord
     return(kDNSServiceErr_Unsupported);
 }
 
+
 #endif  // !MDNS_BUILDINGSTUBLIBRARY
diff --git a/mDNSResponder/mDNSShared/dnssd_clientstub.c b/mDNSResponder/mDNSShared/dnssd_clientstub.c
index 4832c68..5c1d02c 100644
--- a/mDNSResponder/mDNSShared/dnssd_clientstub.c
+++ b/mDNSResponder/mDNSShared/dnssd_clientstub.c
@@ -2093,6 +2093,7 @@ DNSServiceErrorType DNSSD_API DNSServiceReconfirmRecord
     return err;
 }
 
+
 static void handle_port_mapping_response(DNSServiceOp *const sdr, const CallbackHeader *const cbh, const char *data, const char *const end)
 {
     union { uint32_t l; u_char b[4]; } addr;
diff --git a/mDNSResponder/mDNSShared/uds_daemon.c b/mDNSResponder/mDNSShared/uds_daemon.c
index 53677bd..310df52 100644
--- a/mDNSResponder/mDNSShared/uds_daemon.c
+++ b/mDNSResponder/mDNSShared/uds_daemon.c
@@ -1964,6 +1964,23 @@ mDNSlocal mDNSBool CheckForMixedRegistrations(domainname *regtype, domainname *d
     return mDNStrue;
 }
 
+// Returns true if the interfaceIndex value matches one of the pre-defined
+// special values listed in the switch statement below.
+mDNSlocal mDNSBool PreDefinedInterfaceIndex(mDNSu32 interfaceIndex)
+{
+    switch(interfaceIndex)
+    {
+        case kDNSServiceInterfaceIndexAny:
+        case kDNSServiceInterfaceIndexLocalOnly:
+        case kDNSServiceInterfaceIndexUnicast:
+        case kDNSServiceInterfaceIndexP2P:
+            return mDNStrue;
+            break;
+        default:
+            return mDNSfalse;
+    }
+}
+
 mDNSlocal mStatus handle_regservice_request(request_state *request)
 {
     char name[256]; // Lots of spare space for extra-long names that we'll auto-truncate down to 63 bytes
@@ -1987,8 +2004,23 @@ mDNSlocal mStatus handle_regservice_request(request_state *request)
     }
 
     InterfaceID = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
+
+    // The registration is scoped to a specific interface index, but the 
+    // interface is not currently in our list.
     if (interfaceIndex && !InterfaceID)
-    { LogMsg("ERROR: handle_regservice_request - Couldn't find interfaceIndex %d", interfaceIndex); return(mStatus_BadParamErr); }
+    {
+        // If it's one of the specially defined inteface index values, just return an error.
+        if (PreDefinedInterfaceIndex(interfaceIndex))
+        {
+            LogMsg("ERROR: handle_regservice_request: bad interfaceIndex %d", interfaceIndex);
+            return(mStatus_BadParamErr);
+        }
+
+        // Otherwise, use the specified interface index value and the registration will
+        // be applied to that interface when it comes up.
+        InterfaceID = (mDNSInterfaceID)(uintptr_t)interfaceIndex;
+        LogInfo("handle_regservice_request: registration pending for interface index %d", interfaceIndex);
+    }
 
     if (get_string(&request->msgptr, request->msgend, name, sizeof(name)) < 0 ||
         get_string(&request->msgptr, request->msgend, type_as_string, MAX_ESCAPED_DOMAIN_NAME) < 0 ||
@@ -2562,7 +2594,23 @@ mDNSlocal mStatus handle_browse_request(request_state *request)
     DNSServiceFlags flags = get_flags(&request->msgptr, request->msgend);
     mDNSu32 interfaceIndex = get_uint32(&request->msgptr, request->msgend);
     mDNSInterfaceID InterfaceID = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
-    if (interfaceIndex && !InterfaceID) return(mStatus_BadParamErr);
+
+    // The browse is scoped to a specific interface index, but the 
+    // interface is not currently in our list.
+    if (interfaceIndex && !InterfaceID)
+    {
+        // If it's one of the specially defined inteface index values, just return an error.
+        if (PreDefinedInterfaceIndex(interfaceIndex))
+        {
+            LogMsg("ERROR: handle_browse_request: bad interfaceIndex %d", interfaceIndex);
+            return(mStatus_BadParamErr);
+        }
+
+        // Otherwise, use the specified interface index value and the browse will
+        // be applied to that interface when it comes up.
+        InterfaceID = (mDNSInterfaceID)(uintptr_t)interfaceIndex;
+        LogInfo("handle_browse_request: browse pending for interface index %d", interfaceIndex);
+    }
 
     if (get_string(&request->msgptr, request->msgend, regtype, MAX_ESCAPED_DOMAIN_NAME) < 0 ||
         get_string(&request->msgptr, request->msgend, domain, MAX_ESCAPED_DOMAIN_NAME) < 0) return(mStatus_BadParamErr);
@@ -2744,8 +2792,23 @@ mDNSlocal mStatus handle_resolve_request(request_state *request)
     }
 
     InterfaceID = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
+
+    // The operation is scoped to a specific interface index, but the 
+    // interface is not currently in our list.
     if (interfaceIndex && !InterfaceID)
-    { LogMsg("ERROR: handle_resolve_request bad interfaceIndex %d", interfaceIndex); return(mStatus_BadParamErr); }
+    {
+        // If it's one of the specially defined inteface index values, just return an error.
+        if (PreDefinedInterfaceIndex(interfaceIndex))
+        {
+            LogMsg("ERROR: handle_resolve_request: bad interfaceIndex %d", interfaceIndex);
+            return(mStatus_BadParamErr);
+        }
+
+        // Otherwise, use the specified interface index value and the operation will
+        // be applied to that interface when it comes up.
+        InterfaceID = (mDNSInterfaceID)(uintptr_t)interfaceIndex;
+        LogInfo("handle_resolve_request: resolve pending for interface index %d", interfaceIndex);
+    }
 
     if (get_string(&request->msgptr, request->msgend, name, 256) < 0 ||
         get_string(&request->msgptr, request->msgend, regtype, MAX_ESCAPED_DOMAIN_NAME) < 0 ||
@@ -2773,6 +2836,8 @@ mDNSlocal mStatus handle_resolve_request(request_state *request)
     request->u.resolve.qsrv.ForceMCast       = (flags & kDNSServiceFlagsForceMulticast     ) != 0;
     request->u.resolve.qsrv.ReturnIntermed   = (flags & kDNSServiceFlagsReturnIntermediates) != 0;
     request->u.resolve.qsrv.SuppressUnusable = mDNSfalse;
+    request->u.resolve.qsrv.DenyOnCellInterface = mDNSfalse;
+    request->u.resolve.qsrv.DenyOnExpInterface  = mDNSfalse;
     request->u.resolve.qsrv.SearchListIndex  = 0;
     request->u.resolve.qsrv.AppendSearchDomains = 0;
     request->u.resolve.qsrv.RetryWithSearchDomains = mDNSfalse;
@@ -2799,6 +2864,8 @@ mDNSlocal mStatus handle_resolve_request(request_state *request)
     request->u.resolve.qtxt.ForceMCast       = (flags & kDNSServiceFlagsForceMulticast     ) != 0;
     request->u.resolve.qtxt.ReturnIntermed   = (flags & kDNSServiceFlagsReturnIntermediates) != 0;
     request->u.resolve.qtxt.SuppressUnusable = mDNSfalse;
+    request->u.resolve.qtxt.DenyOnCellInterface = mDNSfalse;
+    request->u.resolve.qtxt.DenyOnExpInterface  = mDNSfalse;
     request->u.resolve.qtxt.SearchListIndex  = 0;
     request->u.resolve.qtxt.AppendSearchDomains = 0;
     request->u.resolve.qtxt.RetryWithSearchDomains = mDNSfalse;
@@ -3626,7 +3693,23 @@ mDNSlocal mStatus handle_queryrecord_request(request_state *request)
     DNSServiceFlags flags = get_flags(&request->msgptr, request->msgend);
     mDNSu32 interfaceIndex = get_uint32(&request->msgptr, request->msgend);
     mDNSInterfaceID InterfaceID = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
-    if (interfaceIndex && !InterfaceID) return(mStatus_BadParamErr);
+
+    // The request is scoped to a specific interface index, but the 
+    // interface is not currently in our list.
+    if (interfaceIndex && !InterfaceID)
+    {
+        // If it's one of the specially defined inteface index values, just return an error.
+        if (PreDefinedInterfaceIndex(interfaceIndex))
+        {
+            LogMsg("ERROR: handle_queryrecord_request: bad interfaceIndex %d", interfaceIndex);
+            return(mStatus_BadParamErr);
+        }
+
+        // Otherwise, use the specified interface index value and the request will
+        // be applied to that interface when it comes up.
+        InterfaceID = (mDNSInterfaceID)(uintptr_t)interfaceIndex;
+        LogInfo("handle_queryrecord_request: query pending for interface index %d", interfaceIndex);
+    }
 
     if (get_string(&request->msgptr, request->msgend, name, 256) < 0) return(mStatus_BadParamErr);
     rrtype  = get_uint16(&request->msgptr, request->msgend);
@@ -3655,6 +3738,8 @@ mDNSlocal mStatus handle_queryrecord_request(request_state *request)
     q->TimeoutQuestion  = (flags & kDNSServiceFlagsTimeout            ) != 0;
     q->WakeOnResolve    = 0;
     q->UseBackgroundTrafficClass = (flags & kDNSServiceFlagsBackgroundTrafficClass) != 0;
+    q->DenyOnCellInterface = (flags & kDNSServiceFlagsDenyCellular)  != 0;
+    q->DenyOnExpInterface  = (flags & kDNSServiceFlagsDenyExpensive) != 0;
     if ((flags & kDNSServiceFlagsValidate) != 0)
         q->ValidationRequired = DNSSEC_VALIDATION_SECURE;
     else if ((flags & kDNSServiceFlagsValidateOptional) != 0)
@@ -4295,16 +4380,46 @@ mDNSlocal mStatus handle_addrinfo_request(request_state *request)
     char hostname[256];
     domainname d;
     mStatus err = 0;
-
+    mDNSs32 serviceIndex   = -1;  // default unscoped value for ServiceID is -1
+    
     DNSServiceFlags flags  = get_flags(&request->msgptr, request->msgend);
+    
     mDNSu32 interfaceIndex = get_uint32(&request->msgptr, request->msgend);
 
+    if (flags & kDNSServiceFlagsServiceIndex)
+    {
+        // NOTE: kDNSServiceFlagsServiceIndex flag can only be set for DNSServiceGetAddrInfo()
+        LogInfo("DNSServiceGetAddrInfo: kDNSServiceFlagsServiceIndex is SET by the client");
+        // if kDNSServiceFlagsServiceIndex is SET,
+        // interpret the interfaceID as the serviceId and set the interfaceID to 0.
+        serviceIndex   = interfaceIndex;
+        interfaceIndex = 0;
+    }
+    
     mDNSPlatformMemZero(&request->u.addrinfo, sizeof(request->u.addrinfo));
-    request->u.addrinfo.interface_id = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
+
+    mDNSInterfaceID InterfaceID = mDNSPlatformInterfaceIDfromInterfaceIndex(&mDNSStorage, interfaceIndex);
+
+    // The request is scoped to a specific interface index, but the 
+    // interface is not currently in our list.
+    if (interfaceIndex && !InterfaceID)
+    {
+        // If it's one of the specially defined inteface index values, just return an error.
+        if (PreDefinedInterfaceIndex(interfaceIndex))
+        {
+            LogMsg("ERROR: handle_addrinfo_request: bad interfaceIndex %d", interfaceIndex);
+            return(mStatus_BadParamErr);
+        }
+
+        // Otherwise, use the specified interface index value and the registration will
+        // be applied to that interface when it comes up.
+        InterfaceID = (mDNSInterfaceID)(uintptr_t)interfaceIndex;
+        LogInfo("handle_addrinfo_request: query pending for interface index %d", interfaceIndex);
+    }
+    request->u.addrinfo.interface_id = InterfaceID;
     request->u.addrinfo.flags        = flags;
     request->u.addrinfo.protocol     = get_uint32(&request->msgptr, request->msgend);
 
-    if (interfaceIndex && !request->u.addrinfo.interface_id) return(mStatus_BadParamErr);
     if (request->u.addrinfo.protocol > (kDNSServiceProtocol_IPv4|kDNSServiceProtocol_IPv6)) return(mStatus_BadParamErr);
 
     if (get_string(&request->msgptr, request->msgend, hostname, 256) < 0) return(mStatus_BadParamErr);
@@ -4325,6 +4440,7 @@ mDNSlocal mStatus handle_addrinfo_request(request_state *request)
     }
 
     request->u.addrinfo.q4.InterfaceID      = request->u.addrinfo.q6.InterfaceID      = request->u.addrinfo.interface_id;
+    request->u.addrinfo.q4.ServiceID        = request->u.addrinfo.q6.ServiceID        = serviceIndex;
     request->u.addrinfo.q4.flags            = request->u.addrinfo.q6.flags            = flags;
     request->u.addrinfo.q4.Target           = request->u.addrinfo.q6.Target           = zeroAddr;
     request->u.addrinfo.q4.qname            = request->u.addrinfo.q6.qname            = d;
@@ -4337,6 +4453,8 @@ mDNSlocal mStatus handle_addrinfo_request(request_state *request)
     request->u.addrinfo.q4.TimeoutQuestion  = request->u.addrinfo.q6.TimeoutQuestion  = (flags & kDNSServiceFlagsTimeout            ) != 0;
     request->u.addrinfo.q4.WakeOnResolve    = request->u.addrinfo.q6.WakeOnResolve    = 0;
     request->u.addrinfo.q4.UseBackgroundTrafficClass = request->u.addrinfo.q6.UseBackgroundTrafficClass  = (flags & kDNSServiceFlagsBackgroundTrafficClass) != 0;
+    request->u.addrinfo.q4.DenyOnCellInterface = request->u.addrinfo.q6.DenyOnCellInterface = (flags & kDNSServiceFlagsDenyCellular) != 0;
+    request->u.addrinfo.q4.DenyOnExpInterface = request->u.addrinfo.q6.DenyOnExpInterface = (flags & kDNSServiceFlagsDenyExpensive) != 0;
     if ((flags & kDNSServiceFlagsValidate) != 0)
         request->u.addrinfo.q4.ValidationRequired = request->u.addrinfo.q6.ValidationRequired = DNSSEC_VALIDATION_SECURE;
     else if ((flags & kDNSServiceFlagsValidateOptional) != 0)



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