From 4b3476d01627511362c2a783ad228ca0c3e85993 Mon Sep 17 00:00:00 2001 From: Matthew Jordan Date: Thu, 5 Jul 2012 17:03:43 +0000 Subject: [PATCH] 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) ........ Merged revisions 369626 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 369627 from http://svn.asterisk.org/svn/asterisk/branches/10 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@369628 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_sip.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 04af933fc6..9b5f96ff64 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -3912,7 +3912,7 @@ static int __sip_autodestruct(const void *data) ast_debug(3, "Re-scheduled destruction of SIP call %s\n", p->callid ? p->callid : ""); 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"); } } @@ -6378,8 +6378,8 @@ static int reinvite_timeout(const void *data) { struct sip_pvt *dialog = (struct sip_pvt *) data; struct ast_channel *owner = sip_pvt_lock_full(dialog); - check_pendings(dialog); dialog->reinviteid = -1; + check_pendings(dialog); if (owner) { ast_channel_unlock(owner); ast_channel_unref(owner); @@ -21048,8 +21048,11 @@ static void parse_moved_contact(struct sip_pvt *p, struct sip_request *req, char 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 */