From 26e297b27f294ba7a2128a5d44988de4d7022fe1 Mon Sep 17 00:00:00 2001 From: Joshua Colp Date: Mon, 25 Feb 2008 16:18:46 +0000 Subject: Merged revisions 104084 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r104084 | file | 2008-02-25 12:16:13 -0400 (Mon, 25 Feb 2008) | 6 lines If a resubscription comes in for a dialog we no longer know about tell the remote side that the dialog does not exist so they subscribe again using a new dialog. (closes issue #10727) Reported by: s0l4rb03 Patches: 10727-2.diff uploaded by file (license 11) ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@104085 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_sip.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'channels') diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 84a52c420..25071518c 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -17392,6 +17392,18 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req, } if (!req->ignore && !resubscribe) { /* Set up dialog, new subscription */ + const char *to = get_header(req, "To"); + char totag[128]; + + /* Check to see if a tag was provided, if so this is actually a resubscription of a dialog we no longer know about */ + if (!ast_strlen_zero(to) && gettag(req, "To", totag, sizeof(totag))) { + if (req->debug) + ast_verbose("Received resubscription for a dialog we no longer know about. Telling remote side to subscribe again.\n"); + transmit_response(p, "481 Subscription does not exist", req); + p->needdestroy = 1; + return 0; + } + /* Use this as the basis */ if (req->debug) ast_verbose("Creating new subscription\n"); -- cgit v1.2.3