[SR-Users] Add Reason Header to kamailio generated CANCEL

[Denys Pozniak]

Hello!

We need to append our own Reason header for the "relayed" CANCEL message,
if it is not on the input.
Like below:


*if ( is_method("CANCEL") && !is_present_hf("Reason") ) {*
*  append_hf("Reason: ....);*
*  t_relay();*
*...*




вт, 17 нояб. 2020 г. в 13:00, Daniel-Constantin Mierla <miconda at gmail.com>:

> Hello,
>
> what is exactly the problem? The header is not added if you enable:
>
>   *
> http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_reason
>
> Cheers,
> Daniel
> On 16.11.20 20:43, Denys Pozniak wrote:
>
> Hello guys,
>
> We have faced almost the same problem adding *Reason:
> SIP;cause=200;text="Call completed elsewhere"* to the t_relayed CANCEL
> request.
> Is there an elegant solution to add this header?
>
> PS. Switching to the stateless mode does not look pretty for us...
>
>
> сб, 1 февр. 2020 г. в 06:04, Alfonso Pinto <alfonso.pinto at gmail.com>:
>
>> Hi guys,
>>
>> Thanks for your answers.
>> I did try local_cancel_reason and it’s not doing anything for the CANCELs
>> generated by kamailio. Isn’t that parameter intended for the CANCELs
>> received and then relayed?
>>
>> As Alex and David mentioned, what I need is to add my own reason header.
>> There are some cases that requires to set the Reason header to something
>> specific. IE: terminal supported call waiting in IMS.
>>
>> Thanks for the piece of code, I will check what can be done here.
>>
>> Regards,
>> Alfonso
>>
>> El El vie, 31 ene 2020 a las 22:10, Henning Westerholt <hw at skalatan.de>
>> escribió:
>>
>>> Hi Alex,
>>>
>>> ok, I was reading that he wants to get just one reason header, not one
>>> dynamic generated.
>>>
>>> Just looked briefly, this seems to be the code:
>>>
>>> t_msgbuilder.c
>>> /* Build a local request based on a previous request; main
>>>  * customers of this function are local ACK and local CANCEL
>>>  */
>>> char *build_local(struct cell *Trans,unsigned int branch,
>>>         unsigned int *len, char *method, int method_len, str *to
>>>         , struct cancel_reason* reason
>>>         )
>>>
>>> Cheers,
>>>
>>> Henning
>>>
>>> --
>>> Henning Westerholt – https://skalatan.de/blog/
>>> Kamailio services – https://gilawa.com
>>>
>>> -----Original Message-----
>>> From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Alex
>>> Balashov
>>> Sent: Friday, January 31, 2020 9:45 PM
>>> To: sr-users at lists.kamailio.org
>>> Subject: Re: [SR-Users] Add Reason Header to kamailio generated CANCEL
>>>
>>> I understood Alfonso's question to implicitly be: how can I add a
>>> dynamic and variable Reason header to outgoing CANCELs?
>>>
>>> Perhaps I was mistaken. But if I'm not, as far as I know there is no
>>> means of doing that. Right?
>>>
>>> On Fri, Jan 31, 2020 at 08:37:48PM +0000, Henning Westerholt wrote:
>>>
>>> > Hello,
>>> >
>>> > have you tried to use this parameter:
>>> >
>>> > http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_r
>>> > eason
>>> >
>>> > Cheers,
>>> >
>>> > Henning
>>> >
>>> > --
>>> > Henning Westerholt – https://skalatan.de/blog/ Kamailio services –
>>> > https://gilawa.com<https://gilawa.com/>
>>> >
>>> > From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of
>>> > Alfonso Pinto
>>> > Sent: Wednesday, January 29, 2020 8:04 PM
>>> > To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>>> > Subject: [SR-Users] Add Reason Header to kamailio generated CANCEL
>>> >
>>> > Hi everyone,
>>> >
>>> > I've got a specific case: when the inv_fr times out, I need to add a
>>> Reason header to the CANCEL generated by kamailio. I've tried to see if I
>>> could do it in the onsend_route, but that one is not triggered for the
>>> generated CANCEL. I also checked event_route[tm:local-request], but that
>>> one isn't triggered either for the generated CANCEL.
>>> >
>>> > Is there any way to do it? Or maybe to have any pointer about where to
>>> look in the code so I may try to trigger event_route[tm:local-request] for
>>> these generated CANCELs?
>>> >
>>> > Regards,
>>> > Alfonso
>>>
>>> > _______________________________________________
>>> > Kamailio (SER) - Users Mailing List
>>> > sr-users at lists.kamailio.org
>>> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>> --
>>> Alex Balashov | Principal | Evariste Systems LLC
>>>
>>> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>
>
> --
>
> BR,
> Denys Pozniak
>
>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
> --
> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Funding: https://www.paypal.me/dcmierla
>
>

-- 

BR,
Denys Pozniak
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