[SR-Users] [sr-dev] Failed to catch some reply message with reply_route block

Henning Westerholt hw at skalatan.de
Sun Aug 25 18:41:33 CEST 2019


Hello Salah,

add some logging (e.g. print the $mb PV) to see what is captured from the onsend_route. Then you can compare against siptrace content and see if they match or is there something different captured.

You need to call sip_trace() in the onsend_route, the trace_flag capture method does not work there.

Cheers,

Henning

Am 25.08.19 um 18:01 schrieb Salah Ahmed:
Hello Daniel,

Thanks for your reply. We want this not to modify the reply message, we just want to invoke sip_trace from onsend_route. Actually we want to trace all sip messages in between Kamailio and UAC. Right now we can easily grab all requests using onsend_route. We also set the core parameter onsend_route_reply = yes ,This started capturing replies, but those are UAS to Kamailio side replies. For debug I added xlog in the onsend_route and print the reply messages. I am not sure, is that sip_trace method issue or the onsend_route issue. Please guide me is there anything else I can do for it.

Thanks,
Salah


On Fri, Aug 23, 2019 at 2:29 PM Salah Ahmed <txrubel at gmail.com<mailto:txrubel at gmail.com>> wrote:
Hello Henning,

Is there anything wrong what we want to do?

Thanks,
Salah

On Thu, Aug 22, 2019 at 2:56 PM Salah Ahmed <txrubel at gmail.com<mailto:txrubel at gmail.com>> wrote:
Hello Henning,

Yes this is correct, this reply came from UAS. We got this correctly. But we want to get, which kamailio sent to UAC side.

This following reply, we want to get by onreply_route

 3(23) DEBUG: <core> [core/msg_translator.c:2306]: generate_res_buf_from_sip_res(): copied size: orig:130, new: 16, rest: 773 msg=
SIP/2.0 200 OK
Via: SIP/2.0/UDP 172.32.100.100:5055;branch=z9hG4bK-254-1-0
Record-Route: <sip:172.32.0.6:5060;lr;ftag=1>
Call-ID: T1_MYSER
From: <sip:caller at 172.32.100.100<mailto:sip%3Acaller at 172.32.100.100>>;tag=1
To: "callee" <sip:3228090000 at 172.32.0.6<mailto:sip%3A3228090000 at 172.32.0.6>>;tag=6fb31703-d630-4140-a41b-7270cdcae85b
CSeq: 1 INVITE
Server: MYX Callcontrol
Contact: <sip:172.32.10.70:5060<http://172.32.10.70:5060>>
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, REGISTER, MESSAGE, REFER
Supported: timer, replaces, norefersub
Remote-Party-ID: <sip:s at 172.32.0.6<mailto:sip%3As at 172.32.0.6>>;privacy=off;screen=no
Content-Type: application/sdp
Content-Length:   178

v=0
o=- 53655765 2353687639 IN IP4 172.32.10.70
s=session
c=IN IP4 172.32.10.70
t=0 0
m=audio 10006 RTP/AVP 0
a=rtpmap:0 PCMU/8000
a=ptime:20
a=maxptime:150
a=sendrecv

Thanks,
Salah

On Thu, Aug 22, 2019 at 2:52 PM Henning Westerholt <hw at skalatan.de<mailto:hw at skalatan.de>> wrote:

(moved the discussion to user list)

Hello Salah,

I see the this output in the log message:

 6(26) INFO: <script>: on_reply_route [SIP/2.0 200 OK
Via: SIP/2.0/UDP 172.32.0.6;rport=5060;received=172.32.0.6;branch=z9hG4bKe68a.99dc492fe74dcfe1017828521a5fa362.0

 2(22) INFO: <script>: on_reply_route [SIP/2.0 100 Trying
Via: SIP/2.0/UDP 172.32.0.6;rport=5060;received=172.32.0.6;branch=z9hG4bK178a.79cddb135aabfc42736fd9e9fd826ba8.0

and so on.. So you are seeing the replies correctly, or I wrong?

Cheers,

Henning

Am 22.08.19 um 21:29 schrieb Salah Ahmed:
Hello Henning,

We already added xlog in the onreply_route and found all messages in between kamailio and UAS. The attached log files in first email has those logs. If any other specific log needed I am here to provide them.

Thanks,
Salah

On Thu, Aug 22, 2019 at 2:24 PM Henning Westerholt <hw at skalatan.de<mailto:hw at skalatan.de>> wrote:

Hello Salah,

ok, see if you are able to output some easy log with "xlog" in this route, to make sure there is no cfg problem somewhere.

Cheers,

Henning

Am 22.08.19 um 21:15 schrieb Salah Ahmed:
Hello Henning,

Thanks for quick reply, We armed the t_on_reply just before t_relay() in the route block.

        t_on_reply("LOGRPL");
        if (!t_relay()) {
                sl_reply_error();
        }

Thanks,
Salah

On Thu, Aug 22, 2019 at 2:03 PM Henning Westerholt <hw at skalatan.de<mailto:hw at skalatan.de>> wrote:

Hello Salah,

the replies are going from the UAS to the UAC over Kamailo as a proxy, with the exception of the hop-by-hop 100.

So you should see the 200 OK in the Kamailio in reply_route and onreply_route. Maybe you can check if you armed the onreply_route with t_on_reply for the INVITE routing.

Cheers,

Henning

Am 22.08.19 um 19:50 schrieb Salah Ahmed:
Hello,

We facing an issue on capturing sip message in Kamailio(Version: 5.2.3). The scenario is very simple.

UAC                    Kamailio                UAS
 |--------INVITE--------->|                     |
 |                        |-------INVITE------->|
 |                        |<------100 Trying----|
 |<-------100 Trying------|                     |
 |                        |<------200 Ok--------|
 |<-------200 Ok----------|                     |

In this simple scenario, we can't catch any reply messages in between the Kamailio and UAC. We have tried reply_route, onreply_route, and onsend_route. But no one work to grep that reply on that side. onsend_route was bad try as its only for forwarded reply message. Is there any other magic to capture those replies. A debug=3 log message attached here.

Thanks,
Salah






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--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services

--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services

--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services



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