[OpenSIPS-Users] drouting module with append_branch() and q-values
thrillerbee
thrillerbee at gmail.com
Tue Mar 29 18:27:38 CEST 2011
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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