[SR-Users] Dialog - Profile cleanup before event_route[dialog:end]

[Andre Barbosa]

Hi,

Makes perfect sense. Hope this thread will help someone with the same
doubt in the future.

We manage to workaround by setting a dlg_var() with the name of our
traffic profile.
It works for our use-case.

Thanks!

Andre

On Tue, Apr 20, 2021 at 12:05 PM Daniel-Constantin Mierla
<miconda at gmail.com> wrote:
>
> Hello,
>
> On 14.04.21 16:20, Andre Barbosa wrote:
> > Hi guys,
> >
> > I was trying to read the profile of a dialog on the
> > event_route[dialog:end] and noticed that dialog profiles are not
> > available at this point.
> >
> > My cfg code that doesn't work:
> >
> > event_route[dialog:end] {
> >    if (is_in_profile("orig")) {
> >        xinfo("this dialog belongs to a orig call\n");
> >        route(EMIT_ORIG_CALL_ENDED);
> >    }
> > }
> >
> > Log:
> > |  3(12) INFO: <script>: Managing dialog... for BYE
> > |  3(12) ERROR: *** cfgtrace:dbg_cfg_trace():
> > request_route=[DEFAULT_ROUTE] c=[/etc/kamailio/kamailio.cfg] l=263
> > a=24 n=dlg_manage
> > |  3(12) DEBUG: dialog [dlg_hash.c:887]: internal_get_dlg(): ref dlg
> > 0x7f8edda138e0 with 1 -> 3
> > |  3(12) DEBUG: dialog [dlg_hash.c:891]: internal_get_dlg(): dialog
> > callid='96af5356-4663-4f5d-b6ca-c0d2381c992a' found on entry 16097,
> > dir=1 to-tag='5'
> > |  3(12) DEBUG: dialog [dlg_profile.c:536]: set_current_dialog():
> > setting current dialog [16097:1304]
> > |  3(12) DEBUG: dialog [dlg_hash.c:1290]: next_state_dlg(): dialog
> > 0x7f8edda138e0 changed from state 4 to state 5, due event 7 (ref 3)
> > |  3(12) DEBUG: dialog [dlg_hash.c:1071]: dlg_ref_helper(): ref op on
> > 0x7f8edda138e0 with 1 from dlg_handlers.c:1799
> > |  3(12) DEBUG: dialog [dlg_hash.c:1075]: dlg_ref_helper(): ref dlg
> > 0x7f8edda138e0 with 1 -> 4
> > |  3(12) DEBUG: dialog [dlg_handlers.c:1803]: dlg_run_event_route():
> > executing event_route 3 on state 5
> > |  3(12) ERROR: *** cfgtrace:dbg_cfg_trace(): local_route=[dialog:end]
> > c=[/etc/kamailio/kamailio.cfg] l=453 a=16 n=if
> > |  3(12) ERROR: *** cfgtrace:dbg_cfg_trace(): local_route=[dialog:end]
> > c=[/etc/kamailio/kamailio.cfg] l=448 a=25 n=is_in_profile
> >
> >
> > Looking at code I can see that dialog profiles are cleaned on
> > next_state_dlg() when the dialog moves from state 4 to state 5
> >
> > /* remove the dialog from profiles when is not no longer active */
> > if(*new_state==DLG_STATE_DELETED && dlg->profile_links!=NULL
> > && *old_state!=*new_state) {
> >     destroy_linkers(dlg->profile_links);
> >     dlg->profile_links = NULL;
> > }
> >
> >
> > My question for the more experienced guys:    is this behaviour by design?
> > Can we change it to only clean profiles at same time we clean dlg_vars
> > for example?
>
>
> Because the profiles are used quite often for setting the limits of
> active calls, they are destroyed when the call is switched to terminated
> state, so it does not block an attempt to make a new call.
>
> If anyone wants to change this behaviour, it has to make it based on a
> modparam, so current behavior is preserved.
>
> Cheers,
> Daniel
>
> --
> Daniel-Constantin Mierla -- www.asipto.com
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - Online
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>