[OpenSIPS-Users] dlg_val before create_dialog

Bogdan-Andrei Iancu bogdan at opensips.org
Wed Jan 8 16:49:39 UTC 2025


Hi,

Thanks for the info, Razvan identified the issue - indeed, the 
rtpproxy_offer() forces the dialog creation, without actually of any 
need of it. He will push a fix on this within the next days.

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com

On 17.12.2024 19:27, M S wrote:
> So I did that, and it is very strange:
>
>     if (is_method("INVITE") && !has_totag()) xlog("L_WARN", 
> "$ci|route|$Ts:$Tsm|DLG_status3 $DLG_status");
>             if(!rtpproxy_offer("froc")) xlog("L_WARN", 
> "$ci|route|$Ts:$Tsm|rtpproxy_offer failed for: $mb\n");
>     if (is_method("INVITE") && !has_totag()) xlog("L_WARN", 
> "$ci|route|$Ts:$Tsm|DLG_status4 $DLG_status");
>
> 32ac0d41383090087a573dd766679bcc at 10.201.54.109:5060|route|1734456172:140520|DLG_status3 
> <null>
> 32ac0d41383090087a573dd766679bcc at 10.201.54.109:5060|route|1734456172:140879|DLG_status4 
> 1
>
> But what does rtpproxy_offer has to do with dialog?
>
> On Tue, Dec 17, 2024 at 5:06 PM Bogdan-Andrei Iancu 
> <bogdan at opensips.org> wrote:
>
>     That means some other script function created the dialog in
>     advance. you can find which one by adding something like this on
>     top of your request route:
>         script_trace( 1, "$rm from $si, dlg is $DLG_status", "dbg");
>
>     And see where the print changes from NULL to 1 ;)
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>
>     OpenSIPS Founder and Developer
>        https://www.opensips-solutions.com
>        https://www.siphub.com
>
>     On 17.12.2024 17:58, M S wrote:
>>     Thank you for your answer. I tried that and it shows DLG_status
>>     1, which means the dialog is created but I definitely didn't
>>     create a dialog before that line. Also, the dialog is created
>>     further down with create_dialog("pPB") command because I see
>>     OPTIONS being sent to both caller and callee (pP working).
>>     Why would DLG_status print 1? I will try to print it at different
>>     lines of script to see where it changes... I have a t_newtran and
>>     some $acc_extra lines befores (other than some standard processing)
>>
>>     On Tue, Dec 17, 2024 at 4:39 PM Bogdan-Andrei Iancu
>>     <bogdan at opensips.org> wrote:
>>
>>         Hi,
>>
>>         Yes, the dlg_val assignment fails if there is no current
>>         dialog. Maybe
>>         the dialog is created (internally) by some other script
>>         function you are
>>         using. Try prinitng the $DLG_status before the assignment,
>>         just to see
>>         if there is a dialog or not
>>
>>         Regards,
>>
>>         Bogdan-Andrei Iancu
>>
>>         OpenSIPS Founder and Developer
>>         https://www.opensips-solutions.com
>>         https://www.siphub.com
>>
>>         On 17.12.2024 14:08, M S wrote:
>>         > Hi list,
>>         > I have a script like this:
>>         >
>>         > ..... some processing
>>         > if (is_method("INVITE") && !has_totag()) {
>>         >   $dlg_val(x)="y";
>>         > }
>>         > .... some processing
>>         > if (is_method("INVITE") && !has_totag()) {
>>         >     create_dialog("pPB")
>>         > }
>>         >
>>         > My first question is, why does this work?! documents say
>>         $dlg_val
>>         > cannot be used before dialog is created, and create_dialog
>>         is called
>>         > after dlg_val here.
>>         > I have verified that indeed dialog is created using
>>         create_dialog, and
>>         > indeed $dlg_val(x) stores the value (it is available later
>>         in the dialog).
>>         >
>>         > Second question, once or two times a day (after thousands
>>         of calls) I
>>         > see a do_assign setting PV failed error message on the
>>         $dlg_val(x)="y"
>>         > line. Since this shouldn't have worked to begin with, I
>>         don't know how
>>         > to debug this. Any suggestions?
>>         >
>>         > Thank you!
>>         >
>>         > _______________________________________________
>>         > Users mailing list
>>         > Users at lists.opensips.org
>>         > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>
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