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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.

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(closes issue #10727)
Reported by: s0l4rb03
Patches:
      10727-2.diff uploaded by file (license 11)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@104084 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2008-02-25 16:16:13 +00:00
parent 2395b1a6f5
commit 9b32204204
1 changed files with 12 additions and 0 deletions
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12
channels/chan_sip.c
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@@ -14812,6 +14812,18 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
}
if (!ast_test_flag(req, SIP_PKT_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 (ast_test_flag(req, SIP_PKT_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);
ast_set_flag(&p->flags[0], SIP_NEEDDESTROY);
return 0;
}
/* Use this as the basis */
if (ast_test_flag(req, SIP_PKT_DEBUG))
ast_verbose("Creating new subscription\n");