[OpenSIPS-Users] Interaction between OpenSIPS as UAC and real UAC

Bogdan-Andrei Iancu bogdan at opensips.org
Mon Mar 24 11:50:39 CET 2014


Hello,

Script-wise, what are you trying to do right now by the db_is_user_in() 
? If you explain the actual idea you try to implement, I can guide you 
with the script.

So, when comes to the incoming REGISTER, what you want to change now ?

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 21.03.2014 10:37, Александр Пучков wrote:
> 11.02.2014 19:44, Bogdan-Andrei Iancu пишет:
>> Hello,
>>
>> Please keep the list CC'ed all the time !
>>
>> You did no inserted the topo hiding triggering in the write place - 
>> you need to do it only for initial INVITEs ; for sequential requests 
>> you need the be sure to invoke the match_dialog() function. See:
>> http://www.opensips.org/html/docs/modules/1.10.x/dialog.html#id295144
>>
>> It will be helpful to provide more info on what "it is not working" - 
>> like do you see any changes on the INVITE sent out by OpenSIPS, any 
>> script errors, etc
> I 'm trying to use your proposed function, but ran into a problem - I 
> have not triggered the authorization and I can not make an outgoing call .
>
> After making some changes :
>
>     if (!db_is_user_in("$fu", "asterisk")) # +++ I ADDED THIS STRING
>     if (!(method=="REGISTER") && from_uri==myself) /*НЕ multidomain 
> версия*/
>
>     {
>
>         if(!check_source_address("0")){
>             if (!proxy_authorize("", "subscriber")) {
>
>
>                 proxy_challenge("", "0");
>                 exit;
>             }
>                 if (!db_check_from()) {
>                     sl_send_reply("403","Forbidden auth ID");
>                     exit;
>                 }
>             consume_credentials();
>         }
>     }
>
> I like making progress , but the analysis of messages using the 
> program "wireshark", I saw that I had not sent a request "ACK" to the 
> asterisk. The challenge does not pass.
>
> Briefly remind you that I 'm trying to achieve :
> I would like to make opensips acted as UAC to asterisk , but it was a 
> server for opensips UAC. This will allow me to introduce UAC, 
> registered in OpenSIPS like an extension on the asterisk.
>
> Please, write a little piece of code for deciding my problem.
>
> My configuration file:
>
> http://pastebin.com/39vV4eYT
>
>> Hello,
>>
>> Use the dialog based topology hiding
>> http://www.opensips.org/html/docs/modules/1.10.x/dialog.html#id296001
>>
>> when forwarding the INVITE to Asterisk (in OpenSIPS).
>>> Thank you.
>>>
>>> I tried it like this code fragment:
>>>
>>> #--8<----------------------------------------------------------------------------------
>>>
>>> route {
>>>
>>>
>>>     if (!mf_process_maxfwd_header("10")) {
>>>         sl_send_reply("483","Too Many Hops");
>>>         exit;
>>>     }
>>>
>>>     #force_rport();
>>>
>>>     if(avp_db_load("$fu","$avp(trace)")) {
>>>         $avp(traceuser)=$fu;
>>>         setflag(22);
>>>         sip_trace();
>>>         xlog("L_INFO","User $fu being traced");
>>>     }
>>> #...................................................................
>>>     if (db_is_user_in("$fu", "asterisk"))
>>>     {
>>>         if(!has_totag() && is_method("INVITE")) {
>>>         topology_hiding();
>>>         }
>>>     }
>>>
>>>     if (has_totag()) {
>>>     ...
>>>     }
>>>
>>>     ...
>>> #--8<----------------------------------------------------------------------------------
>>>
>>> But it not worked :( Perhaps, this code is wrong.
>>>
>>> Could you indicate where the error? Could you indicate where the 
>>> error? Or do I need to follow the documentation on the function 
>>> topology_hiding()?
>>>> On 11.02.2014 10:12, Александр Пучков wrote:
>>>>>
>>>>> 10.02.2014 13:24, Bogdan-Andrei Iancu пишет:
>>>>>> Hello,
>>>>>>
>>>>>> In this scenario:
>>>>>>
>>>>>>     Astеrisk <-- 3 -- OpenSIPS <-- 4 -- UAC
>>>>>>
>>>>>> What SIP requests the UAC is sending ? REGISTER ? INVITES ?
>>>>> Hello!
>>>>>
>>>>> UAC registered to Opensips, Opensips registered as UAC on 
>>>>> Asterisk. When the INVITE request comes from the UAC, Opensips 
>>>>> need to sent INVITE to Asterisk as UAC.
>>>>>
>>>>> Note that the UAC does not know about Asterisk and Asterisk does 
>>>>> not know about UAC. Asterisk know about only Opensips.
>>>>>
>>>>> It is necessary to any UAC registered on Opensips could imagine 
>>>>> how extension on Asterisk, without changing the configuration of UAC.
>>>>>
>>>>> Thank you.
>>>>>
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>> Bogdan-Andrei Iancu
>>>>>> OpenSIPS Founder and Developer
>>>>>> http://www.opensips-solutions.com
>>>>>> On 20.01.2014 13:05, Александр Пучков wrote:
>>>>>>> Hi!
>>>>>>>
>>>>>>> OpenSIPS version 1.8.
>>>>>>>
>>>>>>> We have the following diagram:
>>>>>>>
>>>>>>> PSTN        <-- 1 --> OpenSIPS    <-- 2 --> Astеrisk    <-- 3 
>>>>>>> --> UAC
>>>>>>> 192.168.1.1 <-- 1 --> 192.168.1.2 <-- 2 --> 192.168.1.3 <-- 3 
>>>>>>> --> 192.168.1.*
>>>>>>>
>>>>>>> I would like to make the following scheme:
>>>>>>>
>>>>>>> PSTN        <-- 1 --> OpenSIPS    <-- 2 --> Astеrisk    <-- 3 
>>>>>>> --> OpenSIPS <-- 4 --> UAC
>>>>>>> 192.168.1.1 <-- 1 --> 192.168.1.2 <-- 2 --> 192.168.1.3 <-- 3 
>>>>>>> --> 192.168.1.2 <-- 4 --> 192.168.1.*
>>>>>>>
>>>>>>> Interestingly the following schema fragment:
>>>>>>> Astеrisk    <-- 3 --> OpenSIPS    <-- 4 --> UAC
>>>>>>>
>>>>>>> Here OpenSIPS need to increase control over the services for 
>>>>>>> UAC. UAC should not know about the existence of Asterisk and UAC 
>>>>>>> must be registered on the server OpenSIPS, and any SIP request 
>>>>>>> OpenSIPS should redirect to Asterisk.
>>>>>>>
>>>>>>> I tried to use the module in UAC_REGISTRANT OpenSIPS, it works 
>>>>>>> fine in the direction:
>>>>>>>
>>>>>>> Astеrisk -- 3 --> OpenSIPS -- 4 --> UAC
>>>>>>>
>>>>>>> But how to implement the scheme in the direction:
>>>>>>>
>>>>>>> Astеrisk <-- 3 -- OpenSIPS <-- 4 -- UAC
>>>>>>>
>>>>>>> I do not really imagine. Please tell me how it can be implemented.
>>>>>>>
>>>>>>> Thank!
>>>>>>>
>>>>>>>
>>>>>>>
>
>
>
> *Александр Пучков,
> Системный администратор,
> Тел.: +7(496) 569-24-24 доб.тел. 255;
> *ООО "ПОИГ" (Интернет-провайдер г. Щелково)
> Факс: +7(496) 569-24-24 доб. 103;
> Адрес: 141108, М.О., г.Щелково, Пролетарский пр., д.11;
> WEB: http://www.schelkovo-net.ru
>

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