[sr-dev] git:master:b3b95b5b: topos: use INVITE transaction record to route BYE if dlg has no B-contact

[Daniel-Constantin Mierla]

Module: kamailio
Branch: master
Commit: b3b95b5b701a7f7ebf9532a172cd31b6dca699ff
URL: https://github.com/kamailio/kamailio/commit/b3b95b5b701a7f7ebf9532a172cd31b6dca699ff

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date: 2017-08-15T09:50:35+02:00

topos: use INVITE transaction record to route BYE if dlg has no B-contact

---

Modified: src/modules/topos/tps_msg.c

---

Diff:  https://github.com/kamailio/kamailio/commit/b3b95b5b701a7f7ebf9532a172cd31b6dca699ff.diff
Patch: https://github.com/kamailio/kamailio/commit/b3b95b5b701a7f7ebf9532a172cd31b6dca699ff.patch

---

diff --git a/src/modules/topos/tps_msg.c b/src/modules/topos/tps_msg.c
index 22441b5fa9..75b6d02078 100644
--- a/src/modules/topos/tps_msg.c
+++ b/src/modules/topos/tps_msg.c
@@ -773,12 +773,25 @@ int tps_request_received(sip_msg_t *msg, int dialog)
 		}
 		use_branch = 1;
 	} else {
-		if(tps_storage_load_dialog(msg, &mtsd, &stsd)<0) {
+		if(tps_storage_load_dialog(msg, &mtsd, &stsd) < 0) {
 			goto error;
 		}
-		/* detect direction - via from-tag */
-		if(tps_dlg_detect_direction(msg, &stsd, &direction) < 0) {
-			goto error;
+		if(((get_cseq(msg)->method_id) & (METHOD_BYE))
+				&& stsd.b_contact.len <= 0) {
+			/* BYE but not B-side contact, look for INVITE transaction record */
+			memset(&stsd, 0, sizeof(tps_data_t));
+			if(tps_storage_link_msg(msg, &mtsd, TPS_DIR_DOWNSTREAM) < 0) {
+				goto error;
+			}
+			if(tps_storage_load_branch(msg, &mtsd, &stsd, 1) < 0) {
+				goto error;
+			}
+			use_branch = 1;
+		} else {
+			/* detect direction - via from-tag */
+			if(tps_dlg_detect_direction(msg, &stsd, &direction) < 0) {
+				goto error;
+			}
 		}
 	}