[asterisk-commits] elguero: trunk r382323 - in /trunk: ./ channels/ contrib/realtime/mysql/ cont...

SVN commits to the Asterisk project asterisk-commits at lists.digium.com
Thu Feb 28 22:32:05 CST 2013


Author: elguero
Date: Thu Feb 28 22:32:01 2013
New Revision: 382323

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=382323
Log:
Fix / Clean Up Some Items To Handle The New auto_* NAT Options

The original report had to do with a realtime peer behind NAT being pruned and
the peer's private address being used instead of its external address.  Upon
debugging, it was discovered that this was being caused by the addition of
the auto_force_rport and auto_comedia settings.

This patch does the following:

* Adds a missing note to the CHANGES file indicating that the default global nat
  setting is auto_force_rport

* Constify the 'req' parameter for check_via()

* Add calls to check_via() in a couple of places in order for the auto_*
  settings to do their job in attempting to determine if NAT is involved

* Set the flags SIP_NAT_FORCE_RPORT and SIP_PAGE2_SYMMETRICRTP if the auto_*
  settings are in use where it was needed

* Moves the copying of peer flags up in build_peer() to before they are used;
  this fixes the realtime prune issue

* Update the contrib/realtime schemas to allow the nat column to handle the
  different nat setting combinations we have

This patch received a review and "Ship It!" on the issue itself.

(closes issue ASTERISK-20904)
Reported by: JoshE
Tested by: JoshE, Michael L. Young
Patches:
  asterisk-20904-nat-auto-and-rt-peersv2.diff Michael L. Young (license 5026)
........

Merged revisions 382322 from http://svn.asterisk.org/svn/asterisk/branches/11

Modified:
    trunk/   (props changed)
    trunk/CHANGES
    trunk/channels/chan_sip.c
    trunk/contrib/realtime/mysql/sippeers.sql
    trunk/contrib/realtime/postgresql/realtime.sql

Propchange: trunk/
------------------------------------------------------------------------------
Binary property 'branch-11-merged' - no diff available.

Modified: trunk/CHANGES
URL: http://svnview.digium.com/svn/asterisk/trunk/CHANGES?view=diff&rev=382323&r1=382322&r2=382323
==============================================================================
--- trunk/CHANGES (original)
+++ trunk/CHANGES Thu Feb 28 22:32:01 2013
@@ -397,6 +397,9 @@
    which set the force_rport and comedia options automatically if Asterisk
    detects that an incoming SIP request crossed a NAT after being sent by
    the remote endpoint.
+
+ * The default global nat setting in sip.conf has been changed from force_rport
+   to auto_force_rport.
 
  * NAT settings are now a combinable list of options. The equivalent of the
    deprecated nat=yes is nat=force_rport,comedia. nat=no behaves as before.

Modified: trunk/channels/chan_sip.c
URL: http://svnview.digium.com/svn/asterisk/trunk/channels/chan_sip.c?view=diff&rev=382323&r1=382322&r2=382323
==============================================================================
--- trunk/channels/chan_sip.c (original)
+++ trunk/channels/chan_sip.c Thu Feb 28 22:32:01 2013
@@ -1399,7 +1399,7 @@
 static int get_also_info(struct sip_pvt *p, struct sip_request *oreq);
 static int parse_ok_contact(struct sip_pvt *pvt, struct sip_request *req);
 static int set_address_from_contact(struct sip_pvt *pvt);
-static void check_via(struct sip_pvt *p, struct sip_request *req);
+static void check_via(struct sip_pvt *p, const struct sip_request *req);
 static int get_rpid(struct sip_pvt *p, struct sip_request *oreq);
 static int get_rdnis(struct sip_pvt *p, struct sip_request *oreq, char **name, char **number, int *reason, char **reason_str);
 static enum sip_get_dest_result get_destination(struct sip_pvt *p, struct sip_request *oreq, int *cc_recall_core_id);
@@ -8747,9 +8747,8 @@
 
 	if (useglobal_nat && addr) {
 		/* Setup NAT structure according to global settings if we have an address */
-		ast_copy_flags(&p->flags[0], &global_flags[0], SIP_NAT_FORCE_RPORT);
 		ast_sockaddr_copy(&p->recv, addr);
-
+		check_via(p, req);
 		do_setnat(p);
 	}
 
@@ -12116,8 +12115,9 @@
 
 	if (useglobal_nat && addr) {
 		ast_copy_flags(&p->flags[0], &global_flags[0], SIP_NAT_FORCE_RPORT);
+		ast_copy_flags(&p->flags[2], &global_flags[2], SIP_PAGE3_NAT_AUTO_RPORT);
 		ast_sockaddr_copy(&p->recv, addr);
-		do_setnat(p);
+		check_via(p, req);
 	}
 
 	ast_string_field_set(p, fromdomain, default_fromdomain);
@@ -17958,7 +17958,7 @@
 }
 
 /*! \brief check Via: header for hostname, port and rport request/answer */
-static void check_via(struct sip_pvt *p, struct sip_request *req)
+static void check_via(struct sip_pvt *p, const struct sip_request *req)
 {
 	char via[512];
 	char *c, *maddr;
@@ -18090,6 +18090,21 @@
 				of, ast_sockaddr_stringify(&p->recv));
 		}
 		return AUTH_DONT_KNOW;
+	}
+
+	/*  build_peer, called through sip_find_peer, is not able to check the
+	 *  sip_pvt->natdetected flag in order to determine if the peer is behind
+	 *  NAT or not when SIP_PAGE3_NAT_AUTO_RPORT or SIP_PAGE3_NAT_AUTO_COMEDIA
+	 *  are set on the peer.  So we check for that here and set the peer's
+	 *  address accordingly.
+	 */
+	if (p->natdetected && ast_test_flag(&peer->flags[2], SIP_PAGE3_NAT_AUTO_RPORT)) {
+		ast_set_flag(&peer->flags[0], SIP_NAT_FORCE_RPORT);
+		ast_sockaddr_copy(&peer->addr, &p->recv);
+	}
+
+	if (p->natdetected && ast_test_flag(&peer->flags[2], SIP_PAGE3_NAT_AUTO_COMEDIA)) {
+		ast_set_flag(&peer->flags[1], SIP_PAGE2_SYMMETRICRTP);
 	}
 
 	if (!ast_apply_acl(peer->acl, addr, "SIP Peer ACL: ")) {
@@ -28426,7 +28441,10 @@
 	owner_chan_ref = sip_pvt_lock_full(p);
 
 	copy_socket_data(&p->socket, &req->socket);
-	ast_sockaddr_copy(&p->recv, addr);
+
+	if (ast_sockaddr_isnull(&p->recv)) { /* This may already be set before getting here */
+		ast_sockaddr_copy(&p->recv, addr);
+	}
 
 	/* if we have an owner, then this request has been authenticated */
 	if (p->owner) {
@@ -30637,7 +30655,7 @@
 			} else if (!strcasecmp(v->name, "host")) {
 				if (!strcasecmp(v->value, "dynamic")) {
 					/* They'll register with us */
-					if ((!found && !realtime) || !peer->host_dynamic) {
+					if ((!found && !ast_test_flag(&global_flags[1], SIP_PAGE2_RTCACHEFRIENDS)) || !peer->host_dynamic) {
 						/* Initialize stuff if this is a new peer, or if it used to
 						 * not be dynamic before the reload. */
 						ast_sockaddr_setnull(&peer->addr);
@@ -30990,6 +31008,10 @@
 		set_socket_transport(&peer->socket, peer->default_outbound_transport);
 	}
 
+	ast_copy_flags(&peer->flags[0], &peerflags[0], mask[0].flags);
+	ast_copy_flags(&peer->flags[1], &peerflags[1], mask[1].flags);
+	ast_copy_flags(&peer->flags[2], &peerflags[2], mask[2].flags);
+
 	if (ast_str_strlen(fullcontact)) {
 		ast_string_field_set(peer, fullcontact, ast_str_buffer(fullcontact));
 		peer->rt_fromcontact = TRUE;
@@ -31083,9 +31105,6 @@
 		sip_poke_peer(peer, 0);
 	}
 
-	ast_copy_flags(&peer->flags[0], &peerflags[0], mask[0].flags);
-	ast_copy_flags(&peer->flags[1], &peerflags[1], mask[1].flags);
-	ast_copy_flags(&peer->flags[2], &peerflags[2], mask[2].flags);
 	if (ast_test_flag(&peer->flags[1], SIP_PAGE2_ALLOWSUBSCRIBE)) {
 		sip_cfg.allowsubscribe = TRUE;	/* No global ban any more */
 	}

Modified: trunk/contrib/realtime/mysql/sippeers.sql
URL: http://svnview.digium.com/svn/asterisk/trunk/contrib/realtime/mysql/sippeers.sql?view=diff&rev=382323&r1=382322&r2=382323
==============================================================================
--- trunk/contrib/realtime/mysql/sippeers.sql (original)
+++ trunk/contrib/realtime/mysql/sippeers.sql Thu Feb 28 22:32:01 2013
@@ -24,7 +24,7 @@
       `transport` enum('udp','tcp','udp,tcp','tcp,udp') DEFAULT NULL,
       `dtmfmode` enum('rfc2833','info','shortinfo','inband','auto') DEFAULT NULL,
       `directmedia` enum('yes','no','nonat','update') DEFAULT NULL,
-      `nat` enum('yes','no','never','route') DEFAULT NULL,
+      `nat` varchar(29) DEFAULT NULL,
       `callgroup` varchar(40) DEFAULT NULL,
       `pickupgroup` varchar(40) DEFAULT NULL,
       `language` varchar(40) DEFAULT NULL,

Modified: trunk/contrib/realtime/postgresql/realtime.sql
URL: http://svnview.digium.com/svn/asterisk/trunk/contrib/realtime/postgresql/realtime.sql?view=diff&rev=382323&r1=382322&r2=382323
==============================================================================
--- trunk/contrib/realtime/postgresql/realtime.sql (original)
+++ trunk/contrib/realtime/postgresql/realtime.sql Thu Feb 28 22:32:01 2013
@@ -48,7 +48,7 @@
 "language" character varying(2),
 mailbox character varying(50),
 md5secret character varying(80),
-nat character varying(5) DEFAULT 'no' NOT NULL,
+nat character varying(29) DEFAULT '' NOT NULL,
 permit character varying(95),
 deny character varying(95),
 mask character varying(95),




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