[SR-Users] Modify DMQ 200OK in on_reply route

[Julien Chavanton]

Can you share the settings you are using :

modparam("dmq", "server_address", "?")
modparam("dmq", "notification_address", "?")

On Mon, Jun 17, 2019 at 11:30 AM <jenus at cyberchaos.nl> wrote:

> Hi all,
>
> Is there any other way to filter DMQ peers? I now have a issue with
> dmq_usrloc when running in a docker container. When the node comes
> online the peer is sending the KDMQ usrloc packet (with the registered
> contacts) to the internal container ip and not the actual external ip.
> Both ip's show up as DMQ peers, after a few keepalive failures the dmq
> peer with the internal container ip becomes inactive and no updates are
> sent to that peer. But the usrloc sync seems to happen before the peer
> is inactive.
>
> I tried to strip the peers with the internal container ip's, this works
> for the requests, but i'm not able to fix this for the responses.
>
> Thanks,
>
> Jan
>
> jenus at cyberchaos.nl schreef op 2019-05-02 08:59:
> > Hi all,
> >
> > I'm trying to run a kamailio DMQ node inside a docker container. All
> > works fine but i have one issue with DMQ. Since the kamailio process
> > inside the container is behind a nat i have set the advertise address
> > to the external ip, this works fine for the via headers but DMQ keeps
> > sending the internal interface in the KDMQ notification_peer messages.
> > The external ip is in there as well. Example:
> >
> > SIP/2.0 200 OK
> > Via: SIP/2.0/UDP
> > 10.10.10.13;branch=z9hG4bK2dcb.c6326de2000000000000000000000000.0
> > To:
> > <sip:notification_peer at 10.10.10.94:5060
> >;tag=616b7acb681ed5e9cbc485b3faa09d62.0a3d
> > From:
> > <sip:notification_peer at 10.10.10.13:5060
> >;tag=e8f29c06c4b85a188f6533f08d60feb6-ff29
> > CSeq: 10 KDMQ
> > Call-ID: 17042656602ca532-23367 at x.x.x.x
> > Content-Type: text/plain
> > Server: kamailio (5.1.4 (x86_64/linux))
> > Content-Length: 222
> >
> > sip:10.10.10.13:5060;status=active
> > sip:10.10.10.12:5060;status=active
> > sip:10.10.10.92:5060;status=active
> > sip:10.10.10.93:5060;status=active
> > sip:10.10.10.94:5060;status=active   <-- entry for container external
> > ip
> > sip:172.17.0.2:5060;status=disabled  <-- entry for container internal
> > ip
> >
> >
> > I tried to strip this entry using the replace_body_atonce in the
> > tm:local-request route. This works fine for the KDMQ request, but when
> > i try to remove the same line from 200OK responses that are send out
> > as a response to incomming KDMQ messages this seems to fail. I use the
> > following code:
> >
> > # Working code (for outgoing KDMQ requests):
> > event_route [tm:local-request]
> > {
> >   if(is_method("KDMQ") && $rU == "notification_peer")
> >         replace_body_atonce("sip:172.17.0.*:5060;status=.*", "");
> > }
> >
> > # Failing code (for 200OK responses):
> > reply_route
> > {
> >   xlog("L_ALERT", "REPLY: Sending out reply, tU is $tU  rs is $rs\n");
> >   if ($rs == "200" && $tU == "notification_peer")
> >   {
> >         replace_body_atonce("sip:172.17.0.*:5060;status=.*", "");
> >   }
> > }
> >
> >
> > I'm running kamailio 5.1.4. Is there a way to strip a line from the
> > body of a local generated 200OK response? Or is there a way to avoid
> > that DMQ inserts the internal container ip in the first place.
> >
> >
> > Thanks,
> >
> > Jan Hazenberg
> >
> >
> > _______________________________________________
> > Kamailio (SER) - Users Mailing List
> > sr-users at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
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