<div dir="ltr"><div>i am monitoring an issue with 5.1.2 where a cancel is not being propagated after a 183 is received the packet dump doesn't show anything anomalous. some notes:</div><div>1. the invite went out through t_relay(), transaction is tracked</div><div>2. cancel is handled this way</div><div> if (is_method("CANCEL")) {<br></div><div><div> xlog("CANCEL received");</div><div> if (t_check_trans()) {</div><div> route(RELAY);</div><div> }</div><div> exit;</div><div> }</div></div><div>3. if the UAC who is sending the call to kamailio is configured to send invite with RURI without a port i.e. <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span> </span>14087654321@w.x.y.z instead of </span>14087654321@w.x.y.z:6050, then this does not happen</div><div>4. can be argued that this is not an issue, and that the client should just be configured properly with outbound proxy and ruri without port. but i am just being difficult here and wanted to understand what is going on with the matching algo.</div><div><br></div><div>TM debug, in case it helps</div><div><div>2018-04-18T07:29:50.984652+00:00 pinkman /usr/sbin/kamailio[17670]: ERROR: <script>: 100 Trying received</div><div>2018-04-18T07:29:50.984746+00:00 pinkman /usr/sbin/kamailio[17670]: DEBUG: tm [t_reply.c:1263]: t_should_relay_response(): ->>>>>>>>> T_code=100, new_code=100</div><div>2018-04-18T07:29:50.984752+00:00 pinkman /usr/sbin/kamailio[17670]: DEBUG: tm [t_reply.c:1786]: relay_reply(): branch=1, save=0, relay=-1 icode=0</div><div>2018-04-18T07:29:53.564979+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6b8a60 from timer.c:651</div><div>2018-04-18T07:29:53.752387+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6bbcd8 from timer.c:651</div><div>2018-04-18T07:29:54.002501+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6bf130 from timer.c:651</div><div>2018-04-18T07:29:54.184438+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_lookup.c:1019]: t_check_msg(): msg (0x7f8212d77e28) id=3 global id=2 T start=0xffffffffffffffff</div><div>2018-04-18T07:29:54.184454+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_lookup.c:897]: t_reply_matching(): t_reply_matching: hash 6057 label 0 branch 1</div><div>2018-04-18T07:29:54.184468+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_lookup.c:951]: t_reply_matching(): reply (0x7f8212d77e28) matched an active transaction (T=0x7f820b6cc988)!</div><div>2018-04-18T07:29:54.184474+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_lookup.c:1088]: t_check_msg(): msg (0x7f8212d77e28) id=3 global id=3 T end=0x7f820b6cc988</div><div>2018-04-18T07:29:54.184485+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_reply.c:2207]: reply_received(): org. status uas=100, uac[1]=100 local=0 is_invite=1)</div><div>2018-04-18T07:29:54.184544+00:00 pinkman /usr/sbin/kamailio[17671]: ERROR: <script>: 183 Session Progress received</div><div>2018-04-18T07:29:54.184825+00:00 pinkman rtpengine[1660]: INFO: [EqRkPDiOFOOhFg_3018V8A..]: Received command 'answer' from <a href="http://127.0.0.1:41084">127.0.0.1:41084</a></div><div>2018-04-18T07:29:54.184918+00:00 pinkman rtpengine[1660]: INFO: [EqRkPDiOFOOhFg_3018V8A..]: answer time = 0.000074 sec</div><div>2018-04-18T07:29:54.184931+00:00 pinkman rtpengine[1660]: INFO: [EqRkPDiOFOOhFg_3018V8A..]: Replying to 'answer' from <a href="http://127.0.0.1:41084">127.0.0.1:41084</a></div><div>2018-04-18T07:29:54.185049+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_reply.c:1263]: t_should_relay_response(): ->>>>>>>>> T_code=100, new_code=183</div><div>2018-04-18T07:29:54.185066+00:00 pinkman /usr/sbin/kamailio[17671]: DEBUG: tm [t_reply.c:1786]: relay_reply(): branch=1, save=0, relay=1 icode=0</div><div>2018-04-18T07:29:54.252450+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6c2540 from timer.c:651</div><div>2018-04-18T07:29:54.377492+00:00 pinkman rtpengine[1660]: WARNING: [EqRkPDiOFOOhFg_3018V8A.. port 18598]: RTP packet with unknown payload type 95 received</div><div>2018-04-18T07:29:54.564924+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6c57a8 from timer.c:651</div><div>2018-04-18T07:29:55.627429+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6c8bf8 from timer.c:651</div><div>2018-04-18T07:29:55.939949+00:00 pinkman /usr/sbin/kamailio[17678]: DEBUG: tm [h_table.c:129]: free_cell_helper(): freeing transaction 0x7f820b6cc988 from timer.c:651</div><div>2018-04-18T07:29:56.404385+00:00 pinkman /usr/sbin/kamailio[17673]: ERROR: <script>: CANCEL received</div><div>2018-04-18T07:29:56.404411+00:00 pinkman /usr/sbin/kamailio[17673]: DEBUG: tm [t_lookup.c:711]: t_lookupOriginalT(): searching on hash entry 6057</div><div>2018-04-18T07:29:56.404424+00:00 pinkman /usr/sbin/kamailio[17673]: DEBUG: tm [t_lookup.c:435]: matching_3261(): RFC3261 transaction matching failed</div><div>2018-04-18T07:29:56.404429+00:00 pinkman /usr/sbin/kamailio[17673]: DEBUG: tm [t_lookup.c:801]: t_lookupOriginalT(): no CANCEL matching found! </div><div>2018-04-18T07:29:56.404434+00:00 pinkman /usr/sbin/kamailio[17673]: DEBUG: tm [t_lookup.c:803]: t_lookupOriginalT(): lookup completed</div><div>2018-04-18T07:29:56.404441+00:00 pinkman /usr/sbin/kamailio[17673]: DEBUG: tm [tm.c:1096]: ki_t_lookup_cancel_flags(): lookup_original: t_lookupOriginalT returned: (nil)</div></div><div><br></div><div><br></div><br clear="all"><div><div class="gmail_signature">Kelvin Chua</div></div>
</div>