[svn-commits] mjordan: branch 1.8 r369626 - /branches/1.8/channels/chan_sip.c

[SVN commits to the Digium repositories]

Author: mjordan
Date: Thu Jul  5 12:01:52 2012
New Revision: 369626

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=369626
Log:
Do not send a BYE when a provisional response arrives during a re-INVITE

Commits r369557 and r369579 were done to improve handling of re-INVITEs
when the UA that was supposed to receive the re-INVITE fails to respond.
A limitation of those patches occurred when a UA sent a provisional
response to the re-INVITE.  This triggered a sending of a BYE in
check_pending.  This patch tweaks the handling of the re-INVITE such that
a BYE is not sent in response to those messages.

(issue ASTERISK-19992)
Reported by: Steve Davies
Tested by: Steve Davies
patches:
  (reinvite_tweak.diff license #5012 by Steve Davies)


Modified:
    branches/1.8/channels/chan_sip.c

Modified: branches/1.8/channels/chan_sip.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.8/channels/chan_sip.c?view=diff&rev=369626&r1=369625&r2=369626
==============================================================================
--- branches/1.8/channels/chan_sip.c (original)
+++ branches/1.8/channels/chan_sip.c Thu Jul  5 12:01:52 2012
@@ -3850,7 +3850,7 @@
 			ast_debug(3, "Re-scheduled destruction of SIP call %s\n", p->callid ? p->callid : "<unknown>");
 			append_history(p, "ReliableXmit", "timeout");
 			if (sscanf(p->lastmsg, "Tx: %30s", method_str) == 1 || sscanf(p->lastmsg, "Rx: %30s", method_str) == 1) {
-				if (method_match(SIP_CANCEL, method_str) || method_match(SIP_BYE, method_str)) {
+				if (p->ongoing_reinvite || method_match(SIP_CANCEL, method_str) || method_match(SIP_BYE, method_str)) {
 					pvt_set_needdestroy(p, "autodestruct");
 				}
 			}
@@ -6229,8 +6229,8 @@
 {
 	struct sip_pvt *dialog = (struct sip_pvt *) data;
 	struct ast_channel *owner = sip_pvt_lock_full(dialog);
+	dialog->reinviteid = -1;
 	check_pendings(dialog);
-	dialog->reinviteid = -1;
 	if (owner) {
 		ast_channel_unlock(owner);
 		ast_channel_unref(owner);
@@ -19864,8 +19864,11 @@
 static void check_pendings(struct sip_pvt *p)
 {
 	if (ast_test_flag(&p->flags[0], SIP_PENDINGBYE)) {
-		/* if we can't BYE, then this is really a pending CANCEL */
-		if (p->invitestate == INV_PROCEEDING || p->invitestate == INV_EARLY_MEDIA) {
+		if (p->reinviteid > -1) {
+			/* Outstanding p->reinviteid timeout, so wait... */
+			return;
+		} else if (p->invitestate == INV_PROCEEDING || p->invitestate == INV_EARLY_MEDIA) {
+			/* if we can't BYE, then this is really a pending CANCEL */
 			p->invitestate = INV_CANCELLED;
 			transmit_request(p, SIP_CANCEL, p->lastinvite, XMIT_RELIABLE, FALSE);
 			/* If the cancel occurred on an initial invite, cancel the pending BYE */