[OpenSIPS-Users] Double via in MI generated NOTIFY

[Stas Kobzar]

Hi Bogdan,

No, I do not use local_route at all.

My code for these kind of notifies is in the beginning of the initial part
 or main route after t_check_trans and looks like this:

----------------------------------------------------------------------------------------
t_check_trans();

# RFC3265: NOTIFY can not be outside SIP dialog.
# So we should drop the packet
if(is_method("NOTIFY")) {
  # There is an exception: if this is a check-sync packet
  # for phone configuration reload request
  if($hdr(Event) =~ "check-sync"){
    lookup("locations", "m");
    xlog("L_INFO", "$ci|$rm| Send reboot request notify packet to
destination $ru");
    t_relay();
    exit();
  }
  send_reply("481","Dialog does not exists");
  exit;
}
----------------------------------------------------------------------------------------

I have tried different scenarios:
- Put this code before t_check_trans
- do not use lookup function
- replaced t_relay with forward

Nothing helped.

However, when I run fifo command using IP address in sip URI, like this:
opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at 10.130.8.225 . . '"From: <
sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: <
sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'

then, the packet seems to send directly from local_route. Because, in this
case, I do not even see it in the logs.

Thank you!
Stas




On Wed, Jun 3, 2015 at 11:05 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:

>  Hi Stas,
>
> Do you do any local_route stuff ? If yes, do you modify the RURI/DURI or
> other parts of the requests?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 01.06.2015 17:42, Stas Kobzar wrote:
>
> Hello,
>
>  I am sending NOTIFY packet with event "check-sync" to reload phone
> configuration.
>
>  I am doing it with opensips FIFO mi.
>
>  My command looks like this:
> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at 10.130.8.225 . . '"From: <
> sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: <
> sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'
>
>  When I use IP address in RURI (sip:7037 at 10.130.8.225) it works as
> expected.
>
>  However, when I use domain name in RURI (like this:
> sip:7037 at campus.voip.etsmtl.ca) and my command looks like this:
> opensipsctl fifo t_uac_dlg NOTIFY sip:7037 at campus.voip.etsmtl.ca . .
> '"From: <sip:7037 at voip.etsmtl.ca>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo:
> <sip:7037 at voip.etsmtl.ca>\r\nEvent: check-sync\r\n"'
>
>  I have two Via headers in my resulting NOTIFY packet with different
> branche tags:
>
>  NOTIFY sip:7037 at 10.130.8.225 SIP/2.0.
> Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.598957f2.0.
> Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.498957f2.0.
> To: sip:7037 at campus.voip.etsmtl.ca.
> From: <sip:7037 at campus.voip.etsmtl.ca
> >;tag=734c62bd59eb9f33d3e6313898450dd1.
> CSeq: 10 NOTIFY.
> Call-ID: 693206c572f70ff6-19332 at 10.130.8.20.
> Max-Forwards: 69.
> Content-Length: 0.
> Server: ETS voip router01.
> Event: check-sync
> .
>
>
>  In first case, I do not even see the packet in main route but I see it
> in local_route.
>
>  In my second case I see it in main route but the packet is sent with
> double Via header.
>
>  I am sure it is not my routing script, because I have just put a forward
> to some IP whenever NOTIFY is received and I still have this problem.
>
>  Is it a known issue?
>
>  Everything still works fine, but having a double Via in logs a bit
> confusing.
>
>  Thank you,
> --
>
> Stas Kobzar
>
> Developeur VoIP / VoIP Developer
>
> ___________________
>
> Modulis­.ca Inc.
>
> # Bureau / Office: 514-284-2020 x 246
>
> Email: s <http://firstname.lastname>tas.kobzar at modulis.ca
>
>  https://www.modulis.com
>
>   <https://www.modulis.com/es-url-001>
>
>
> _______________________________________________
> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>


-- 

Stas Kobzar

Developeur VoIP / VoIP Developer

___________________

Modulis­.ca Inc.

# Bureau / Office: 514-284-2020 x 246

Email: s <http://firstname.lastname>tas.kobzar at modulis.ca

https://www.modulis.com

<https://www.modulis.com/es-url-001>
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