[OpenSIPS-Users] drouting module with append_branch() and q-values

thrillerbee thrillerbee at gmail.com
Thu Mar 31 16:00:00 CEST 2011 

bump.

On Tue, Mar 29, 2011 at 11:27 AM, thrillerbee <thrillerbee at gmail.com> wrote:

> Hopefully my last question:
>
> Using append_branch() and $branch allows me to add all destinations as
> branches with q-values. However, I am unable to remove/edit the initial
> entry in $ds as set by do_routing():
>
> Contact: *sip:15552345678 at 1.1.1.1, *<sip:15552345678 at 1.1.1.1>;q=1, <
> sip:2215552345678 at 2.2.2.2>;q=0.9, <sip:5552345678 at 3.3.3.3>;q=0.85, <
> sip:15552345678 at 5.5.5.5>;q=0.8, <sip:sip:4415552345678 at 4.4.4.4>;q=0.75
>
> Is there a way to prevent do_routing from adding that entry and/or remove
> it after it has been added? OR is there a way to add a q-value to that
> instance?
>
> Thanks,
> Ryan
>
> On Tue, Mar 29, 2011 at 10:51 AM, thrillerbee <thrillerbee at gmail.com>wrote:
>
>> Bogdan,
>>
>> Nevermind on that issue; I neglected to notice that I had to create the
>> branch with append_branch() before setting anything.
>>
>> Thanks for the help.
>> Ryan
>>
>>
>> On Tue, Mar 29, 2011 at 9:52 AM, thrillerbee <thrillerbee at gmail.com>wrote:
>>
>>> Bogdan,
>>>
>>> When I configure:
>>> $(branch(uri)[0]) = $ru;
>>> $(branch(q)[0]) = 100;
>>> xlog("L_INFO","branch 0 = $(branch(uri)[0]) with q-value
>>> $(branch(q)[0])\n");
>>>
>>> I get this debug:
>>> ERROR:core:pv_set_branch_fields: SCRIPT BUG - inexisting branch assigment
>>> [0/0]
>>> ERROR:core:do_assign: setting PV failed
>>> ERROR:core:do_assign: error at line: 163
>>> ERROR:core:pv_set_branch_fields: SCRIPT BUG - inexisting branch assigment
>>> [0/0]
>>> ERROR:core:do_assign: setting PV failed
>>> ERROR:core:do_assign: error at line: 164
>>> branch 0 = <null> with q-value <null>
>>>
>>> Thanks,
>>> Ryan
>>>
>>>
>>> On Tue, Mar 29, 2011 at 8:19 AM, Bogdan-Andrei Iancu <
>>> bogdan at opensips.org> wrote:
>>>
>>>> Hi,
>>>>
>>>> Another tricks:
>>>>
>>>> 1) you can read the pending destinations directly from AVPs, without
>>>> calling the "use_next_gw()" function. See:
>>>>
>>>> http://www.opensips.org/html/docs/modules/1.6.x/drouting.html#id293166
>>>>
>>>> 2) as append_branch() does not accept variables as params, use the
>>>> "$branch" variable to write into:
>>>>   http://www.opensips.org/Resources/DocsCoreVar16#toc15
>>>>   like:
>>>>      $branch = $var(x) ; #add a new SIP URI as extra branch
>>>>      $(branch(q)[-1])  =  10 ;  # set Q val for the last added brach
>>>>
>>>>
>>>> Regards,
>>>> Bogdan
>>>>
>>>>
>>>> Anca Vamanu wrote:
>>>>
>>>>> Hi thrillerbe,
>>>>>
>>>>> I think that if you only want to build the list of selected
>>>>> destinations, you can just call use_next_gw and add the uri in RURI to a
>>>>> destination string ( because use_next_gw sets the RURI to the destination-
>>>>> http://www.opensips.org/html/docs/modules/devel/drouting.html#id251519
>>>>> ).
>>>>> It would be something like this:
>>>>>
>>>>> if (do_routing("1","2")) {     if ($avp(s:dr_rules_attrs) == "2")
>>>>>    {
>>>>>        xlog("L_INFO","After 1, ds is $ru\n");          $var(x) = 2;
>>>>>        $var(ds) = $ru;
>>>>>
>>>>>        while (use_next_gw())          {              $var(ds) =
>>>>> $var(ds) + "," + $ru;
>>>>>            xlog("L_INFO","After $var(x), ds is $var(ds)\n");
>>>>>     $var(x) = $var(x) + 1;          }      }      xlog("L_INFO","Destination
>>>>> set is $var(ds)\n"); }
>>>>>
>>>>>
>>>>> Regards,
>>>>> --
>>>>> Anca Vamanu
>>>>> OpenSIPS Developer
>>>>>
>>>>>
>>>>> On 03/29/2011 01:00 AM, thrillerbee wrote:
>>>>>
>>>>>> I'm trying to get OpenSIPS to act as a REDIRECT server and have run
>>>>>> into a couple issues. I'm using the drouting module to do lookups.
>>>>>> Essentially, a dialed number could have potentially several routes, I want
>>>>>> to return a 300 with these routes in the Contact header. Please tell me if
>>>>>> this is foolish and/or there are better methods.
>>>>>>
>>>>>> I'm running release version 1.6.4-2-notls.
>>>>>>
>>>>>> With that, I've configured the following in my script:
>>>>>> if (do_routing("1","2"))     {      if ($avp(s:dr_rules_attrs) == "2")
>>>>>>    {
>>>>>>        xlog("L_INFO","After 1, ds is $ds\n");          $var(x) = 2;
>>>>>>        while (use_next_gw())          {              append_branch();
>>>>>>            xlog("L_INFO","After $var(x), ds is $ds\n");
>>>>>> $var(x) = $var(x) + 1;          }      }      xlog("L_INFO","Destination set
>>>>>> is $ds\n"); }
>>>>>>
>>>>>> My relevant debug output is:
>>>>>> After 1, ds is Contact: sip:15552345678 at 1.1.1.1 <mailto:
>>>>>> sip%3A15552345678 at 1.1.1.1> After 2, ds is Contact: *
>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>,
>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>* After
>>>>>> 3, ds is Contact: *sip:5552345678 at 3.3.3.3 <mailto:
>>>>>> sip%3A5552345678 at 3.3.3.3>*, sip:2215552345678 at 2.2.2.2 <mailto:
>>>>>> sip%3A2215552345678 at 2.2.2.2>, *sip:5552345678 at 3.3.3.3 <mailto:
>>>>>> sip%3A5552345678 at 3.3.3.3>* After 4, ds is Contact: *
>>>>>> sip:15552345678 at 5.5.5.5 <mailto:sip%3A15552345678 at 5.5.5.5>*,
>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>,
>>>>>> sip:5552345678 at 3.3.3.3 <mailto:sip%3A5552345678 at 3.3.3.3>, *
>>>>>> sip:15552345678 at 5.5.5.5 <mailto:sip%3A15552345678 at 5.5.5.5>* After 5,
>>>>>> ds is Contact: *sip:4415552345678 at 4.4.4.4 <mailto:
>>>>>> sip%3A4415552345678 at 4.4.4.4>*, sip:2215552345678 at 2.2.2.2 <mailto:
>>>>>> sip%3A2215552345678 at 2.2.2.2>, sip:5552345678 at 3.3.3.3 <mailto:
>>>>>> sip%3A5552345678 at 3.3.3.3>, sip:15552345678 at 5.5.5.5 <mailto:
>>>>>> sip%3A15552345678 at 5.5.5.5>, *sip:4415552345678 at 4.4.4.4 <mailto:
>>>>>> sip%3A4415552345678 at 4.4.4.4>*
>>>>>>  It seems that append_branch() deletes the first entry in the
>>>>>> destination set before adding the current RURI to the beginning and end. Is
>>>>>> there an easier or more predictable way to write to the destination set?
>>>>>>
>>>>>> Also, it seems the append_branch() function will not take variables or
>>>>>> avps as parameters. Is there a known way of setting different q-values as a
>>>>>> destination set is generated?  The below obviously doesn't work but should
>>>>>> explain what I'm looking for:
>>>>>>
>>>>>> var(q) = 90;
>>>>>> while (use_next_branch())
>>>>>> {
>>>>>>    append_branch("$ru","$var(q)");
>>>>>>    $var(q) = $var(q) - 10;
>>>>>> }
>>>>>>
>>>>>> Thanks,
>>>>>> Ryan
>>>>>>
>>>>>> ------------------------------------------------------------------------
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opensips.org
>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS eBootcamp - 2nd of May 2011
>>>> OpenSIPS solutions and "know-how"
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>
>>>
>>
>
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