[SR-Users] SDP c= IP doesn't get rewritten

Daniel-Constantin Mierla miconda at gmail.com
Fri Apr 11 15:12:17 CEST 2014


Hello,

upgrading will not help. The best is trying to avoid using the two 
operations over the same message. Alternative is to use 
msg_apply_changes() in between them.

It is due to internal architecture of how changes are done to the sip 
message. They are not applied immediately -- see more details here:

- 
http://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_headers_or

Cheers,
Daniel

On 11/04/14 15:02, Daniel Ciprus wrote:
> If you're going to recommend to upgrade/or use something else - this 
> is not feasible for some weird reasons. Is this a bug or just my 
> misunderstanding how to use this function ?
>
> thanks
>
> On 04/11/2014 07:54 AM, Ciprus, Daniel wrote:
>> Yes I do
>>
>>
>> Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone
>>
>>
>> -------- Original message --------
>> From: Daniel-Constantin Mierla
>> Date:04/11/2014 6:13 AM (GMT-05:00)
>> To: "Ciprus, Daniel" ,"Kamailio (SER) - Users Mailing List"
>> Subject: Re: [SR-Users] SDP c= IP doesn't get rewritten
>>
>> Hello,
>>
>> are you using a rtp relay (e.g., rtpproxy)?
>>
>> Cheers,
>> Daniel
>>
>> On 11/04/14 02:46, Daniel Ciprus wrote:
>>> All,
>>>
>>> I am facing problem with rewriting SDP part of the INVITE, in 
>>> particular following is in my configuration:
>>>
>>> #!subst "/RTP_INT_ADDR/10.96.173.15/"
>>> #!subst "/RTP_EXT_ADDR/168.7.24.17/"
>>> #!subst "/BOT_RTP_ADDR/10.96.173.52/"
>>>
>>> subst_body('/RTP_INT_ADDR/RTP_EXT_ADDR/g');
>>> subst_body('/BOT_RTP_ADDR/RTP_EXT_ADDR/g');
>>>
>>> and this is what I ended up with:
>>>
>>> c=IN IP4 10.96.173.15168.7.24.17
>>>
>>> Apparently 2nd rule doesn't work rewrite, it's doing append instead. 
>>> What I want to achieve is : if SDP part contains BOT_RTP_ADDR -> 
>>> rewrite it. In case SDP part contains RTP_INT_ADDR-> rewrite it, so 
>>> 2x if.
>>>
>>> I have tried to use sdpops module, it's coring in my case and I have 
>>> a reason to not upgrade, I just can't. Any other ideas how to handle 
>>> my problem ?
>>>
>>> Thanks
>>> Dan
>>>
>>>
>>> Server:: kamailio (4.2.0-dev0 (x86_64/linux))
>>> Build:: mi_core.c compiled on 17:42:57 Dec 18 2013 with gcc 4.4.7
>>> Flags:: STATS: Off, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, 
>>> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, 
>>> PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, 
>>> USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, 
>>> HAVE_RESOLV_RES
>>> GIT:: unknown
>>>
>>>
>>> -- 
>>> *Daniel Ciprus*
>>> Integration engineer
>>> http://www.acision.com
>>>
>>> 9954 Mayland Dr
>>> Suite 3100
>>> Richmond, VA 23233
>>> USA
>>> T: +1 804 762 5601
>>> E: daniel.ciprus at acision.com
>>>
>>> ------------------------------------------------------------------------
>>> This e-mail and any attachment is for authorised use by the intended 
>>> recipient(s) only. It may contain proprietary material, confidential 
>>> information and/or be subject to legal privilege. It should not be 
>>> copied, disclosed to, retained or used by, any other party. If you 
>>> are not an intended recipient then please promptly delete this 
>>> e-mail and any attachment and all copies and inform the sender. 
>>> Thank you for understanding.
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>> -- 
>> Daniel-Constantin Mierla -http://www.asipto.com
>> http://twitter.com/#!/miconda  -http://www.linkedin.com/in/miconda
>>
>> ------------------------------------------------------------------------
>> This e-mail and any attachment is for authorised use by the intended 
>> recipient(s) only. It may contain proprietary material, confidential 
>> information and/or be subject to legal privilege. It should not be 
>> copied, disclosed to, retained or used by, any other party. If you 
>> are not an intended recipient then please promptly delete this e-mail 
>> and any attachment and all copies and inform the sender. Thank you 
>> for understanding.
>>
>
> -- 
> *Daniel Ciprus*
> Integration engineer
> http://www.acision.com
>
> 9954 Mayland Dr
> Suite 3100
> Richmond, VA 23233
> USA
> T: +1 804 762 5601
> E: daniel.ciprus at acision.com
>
> ------------------------------------------------------------------------
> This e-mail and any attachment is for authorised use by the intended 
> recipient(s) only. It may contain proprietary material, confidential 
> information and/or be subject to legal privilege. It should not be 
> copied, disclosed to, retained or used by, any other party. If you are 
> not an intended recipient then please promptly delete this e-mail and 
> any attachment and all copies and inform the sender. Thank you for 
> understanding.
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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