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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
This commit is contained in:
Matthew Jordan 2012-07-05 17:03:43 +00:00
parent f719be6054
commit 4b3476d016
1 changed files with 7 additions and 4 deletions
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11
channels/chan_sip.c
View File

@ -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 : "<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");
}
}
@ -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 */