Merge "chan_sip.c: Update dialog fromtag after request with auth" into 13

channels/chan_sip.c

@@ -9240,6 +9240,15 @@ static struct sip_pvt *__find_call(struct sip_request *req, struct ast_sockaddr
 
 			switch (found) {
 			case SIP_REQ_MATCH:
+				sip_pvt_lock(sip_pvt_ptr);
+				if (args.method != SIP_RESPONSE && args.authentication_present
+						&& strcmp(args.fromtag, sip_pvt_ptr->theirtag)) {
+					/* If we have a request that uses athentication and the fromtag is
+					 * different from that in the original call dialog, update the
+					 * fromtag in the saved call dialog */
+					ast_string_field_set(sip_pvt_ptr, theirtag, args.fromtag);
+				}
+				sip_pvt_unlock(sip_pvt_ptr);
 				ao2_iterator_destroy(iterator);
 				dialog_unref(fork_pvt, "unref fork_pvt");
 				free_via(via);