Merged revisions 221360 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r221360 | mnicholson | 2009-09-30 14:36:06 -0500 (Wed, 30 Sep 2009) | 10 lines
  
  Fix SRV lookup and Request-URI generation in chan_sip.
  
  This patch adds a new field "portinuri" to the sip dialog struct and the sip peer struct.  That field is used during RURI generation to determine if the port should be included in the RURI.  It is also used in some places to determine if an SRV lookup should occur.
  
  (closes issue #14418)
  Reported by: klaus3000
  Tested by: klaus3000, mnicholson
  
  Review: https://reviewboard.asterisk.org/r/369/
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@221432 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 30 insertions, 12 deletions

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 908bc80cc..a43783cdb 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -1776,6 +1776,7 @@ struct sip_pvt {
 	long branch;				/*!< The branch identifier of this session */
 	long invite_branch;			/*!< The branch used when we sent the initial INVITE */
 	int64_t sessionversion_remote;		/*!< Remote UA's SDP Session Version */
+	int portinuri:1;			/*!< Non zero if a port has been specified, will also disable srv lookups */
 	struct sockaddr_in sa;			/*!< Our peer */
 	struct sockaddr_in redirip;		/*!< Where our RTP should be going if not to us */
 	struct sockaddr_in vredirip;		/*!< Where our Video RTP should be going if not to us */
@@ -2029,6 +2030,7 @@ struct sip_peer {
 	struct sip_proxy *outboundproxy;	/*!< Outbound proxy for this peer */
 	struct ast_dnsmgr_entry *dnsmgr;/*!<  DNS refresh manager for peer */
 	struct sockaddr_in addr;	/*!<  IP address of peer */
+	int portinuri:1;		/*!< Whether the port should be included in the URI */
 	struct sip_pvt *call;		/*!<  Call pointer */
 	int pokeexpire;			/*!<  Qualification: When to expire poke (qualify= checking) */
 	int lastms;			/*!<  Qualification: How long last response took (in ms), or -1 for no response */
@@ -3209,11 +3211,15 @@ static int proxy_update(struct sip_proxy *proxy)
  *  pt buffer is provided or the pt has errors when being converted
  *  to an int value, the port provided as the standard is used.
  */
-static int port_str2int(const char *pt, unsigned int standard)
+static int port_str2int(const char *pt, unsigned int standard, int *found_port)
 {
 	int port = standard;
 	if (ast_strlen_zero(pt) || (sscanf(pt, "%30d", &port) != 1) || (port < 1) || (port > 65535)) {
 		port = standard;
+		if (found_port)
+			*found_port = 0;
+	} else if (found_port) {
+		*found_port = 1;
 	}
 
 	return port;
@@ -3233,7 +3239,7 @@ static struct sip_proxy *proxy_allocate(char *name, char *port, int force)
 		return NULL;
 	proxy->force = force;
 	ast_copy_string(proxy->name, name, sizeof(proxy->name));
-	proxy->ip.sin_port = htons(port_str2int(port, STANDARD_SIP_PORT));
+	proxy->ip.sin_port = htons(port_str2int(port, STANDARD_SIP_PORT, NULL));
 	proxy_update(proxy);
 	return proxy;
 }
@@ -5277,6 +5283,8 @@ static int create_addr_from_peer(struct sip_pvt *dialog, struct sip_peer *peer)
 		dialog->noncodeccapability &= ~AST_RTP_DTMF;
 	if (peer->call_limit)
 		ast_set_flag(&dialog->flags[0], SIP_CALL_LIMIT);
+	if (!dialog->portinuri)
+		dialog->portinuri = peer->portinuri;
 	
 	dialog->chanvars = copy_vars(peer->chanvars);
 
@@ -5299,8 +5307,10 @@ static int create_addr(struct sip_pvt *dialog, const char *opeer, struct sockadd
 
 	ast_copy_string(peername, opeer, sizeof(peername));
 	port = strchr(peername, ':');
-	if (port)
+	if (port) {
 		*port++ = '\0';
+		dialog->portinuri = 1;
+	}
 	dialog->sa.sin_family = AF_INET;
 	dialog->timer_t1 = global_t1; /* Default SIP retransmission timer T1 (RFC 3261) */
 	dialog->timer_b = global_timer_b; /* Default SIP transaction timer B (RFC 3261) */
@@ -5335,7 +5345,7 @@ static int create_addr(struct sip_pvt *dialog, const char *opeer, struct sockadd
 		/* This address should be updated using dnsmgr */
 		memcpy(&dialog->sa.sin_addr, &sin->sin_addr, sizeof(dialog->sa.sin_addr));
 		if (!sin->sin_port) {
-			portno = port_str2int(port, (dialog->socket.type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT);
+			portno = port_str2int(port, (dialog->socket.type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT, NULL);
 		} else {
 			portno = ntohs(sin->sin_port);
 		}
@@ -5362,7 +5372,7 @@ static int create_addr(struct sip_pvt *dialog, const char *opeer, struct sockadd
 			}
 		}
 	 	if (!portno)
-			portno = port_str2int(port, (dialog->socket.type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT);
+			portno = port_str2int(port, (dialog->socket.type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT, NULL);
 		hp = ast_gethostbyname(hostn, &ahp);
 		if (!hp) {
 			ast_log(LOG_WARNING, "No such host: %s\n", peername);
@@ -10804,7 +10814,7 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
 			ast_str_append(&invite, 0, "%s@", n);
 		}
 		ast_str_append(&invite, 0, "%s", p->tohost);
-		if (ntohs(p->sa.sin_port) != STANDARD_SIP_PORT)
+		if (p->portinuri)
 			ast_str_append(&invite, 0, ":%d", ntohs(p->sa.sin_port));
 		ast_str_append(&invite, 0, "%s", urioptions);
 	}
@@ -12192,6 +12202,7 @@ static int expire_register(const void *data)
 		return 0;
 
 	peer->expire = -1;
+	peer->portinuri = 0;
 	memset(&peer->addr, 0, sizeof(peer->addr));
 
 	destroy_association(peer);	/* remove registration data from storage */
@@ -12343,9 +12354,9 @@ static int __set_address_from_contact(const char *fullcontact, struct sockaddr_i
 
 	/* set port */
 	if (((get_transport_str2enum(transport) == SIP_TRANSPORT_TLS)) || !(strncasecmp(fullcontact, "sips", 4))) {
-		port = port_str2int(pt, STANDARD_TLS_PORT);
+		port = port_str2int(pt, STANDARD_TLS_PORT, NULL);
 	} else {
-		port = port_str2int(pt, STANDARD_SIP_PORT);
+		port = port_str2int(pt, STANDARD_SIP_PORT, NULL);
 	}
 
 
@@ -12390,6 +12401,7 @@ static enum parse_register_result parse_register_contact(struct sip_pvt *pvt, st
 	int expire = atoi(expires);
 	char *curi, *host, *pt, *transport;
 	int port;
+	int portinuri;
 	int transport_type;
 	const char *useragent;
 	struct hostent *hp;
@@ -12443,6 +12455,7 @@ static enum parse_register_result parse_register_contact(struct sip_pvt *pvt, st
 		ast_string_field_set(peer, useragent, "");
 		peer->sipoptions = 0;
 		peer->lastms = 0;
+		peer->portinuri = 0;
 		pvt->expiry = 0;
 
 		ast_verb(3, "Unregistered SIP '%s'\n", peer->name);
@@ -12468,11 +12481,12 @@ static enum parse_register_result parse_register_contact(struct sip_pvt *pvt, st
 		 * default port to match the specified transport.  This may or may not be the
 		 * same transport used by the pvt struct for the Register dialog. */
 		
-		port = port_str2int(pt, (transport_type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT);
+		port = port_str2int(pt, (transport_type == SIP_TRANSPORT_TLS) ? STANDARD_TLS_PORT : STANDARD_SIP_PORT, &portinuri);
 	} else {
-		port = port_str2int(pt, STANDARD_SIP_PORT);
+		port = port_str2int(pt, STANDARD_SIP_PORT, &portinuri);
 		transport_type = pvt->socket.type;
 	}
+	peer->portinuri = portinuri;
 
 	/* if the peer's socket type is different than the Registration
 	 * transport type, change it.  If it got this far, it is a
@@ -14145,7 +14159,7 @@ static void check_via(struct sip_pvt *p, struct sip_request *req)
 		if (pt)
 			*pt++ = '\0';	/* remember port pointer */
 		p->sa = p->recv;
-		p->sa.sin_port = htons(port_str2int(pt, STANDARD_SIP_PORT));
+		p->sa.sin_port = htons(port_str2int(pt, STANDARD_SIP_PORT, NULL));
 
 		if (sip_debug_test_pvt(p)) {
 			const struct sockaddr_in *dst = sip_real_dst(p);
@@ -24214,6 +24228,9 @@ static struct sip_peer *build_peer(const char *name, struct ast_variable *v, str
 		/* XXX should unregister ? */
 	}
 
+	if (found)
+		peer->portinuri = 0;
+
 	/* If we have realm authentication information, remove them (reload) */
 	clear_realm_authentication(peer->auth);
 	peer->auth = NULL;
@@ -24365,6 +24382,7 @@ static struct sip_peer *build_peer(const char *name, struct ast_variable *v, str
 					ast_log(LOG_ERROR, "Bad ACL entry in configuration line %d : %s\n", v->lineno, v->value);
 				}
 			} else if (!strcasecmp(v->name, "port")) {
+				peer->portinuri = 1;
 				if (!realtime && peer->host_dynamic) {
 					peer->defaddr.sin_port = htons(atoi(v->value));
 				} else {
@@ -24620,7 +24638,7 @@ static struct sip_peer *build_peer(const char *name, struct ast_variable *v, str
 
 			snprintf(transport, sizeof(transport), "_sip._%s", get_transport(peer->socket.type));
 
-			if (ast_dnsmgr_lookup(_srvlookup, &peer->addr, &peer->dnsmgr, sip_cfg.srvlookup ? transport : NULL)) {
+			if (ast_dnsmgr_lookup(_srvlookup, &peer->addr, &peer->dnsmgr, sip_cfg.srvlookup && !peer->portinuri ? transport : NULL)) {
 				ast_log(LOG_ERROR, "srvlookup failed for host: %s, on peer %s, removing peer\n", _srvlookup, peer->name);
 				unref_peer(peer, "getting rid of a peer pointer");
 				return NULL;