[Kamailio-Users] bug in subscribe when contact uses tcp transport?

Daniel-Constantin Mierla miconda at gmail.com
Fri Mar 6 14:46:43 CET 2009


I am not sure this applies any longer. I did some changes there, I am 
taking care of it.

Cheers,
Daniel


On 03/06/2009 03:36 PM, Klaus Darilion wrote:
> http://opensips.svn.sourceforge.net/viewvc/opensips?view=rev&revision=5032
>
>
>
> Juha Heinanen schrieb:
>   
>> i would just like to add that in this example, i had kamailio sip proxy
>> in front of kamailio presence server:
>>
>>  > +++ 6-3-2009 11:44:07.897113 INFO SIP ::send_sip_tcp
>>  > Send to: tcp:192.98.101.10:5060
>>  > SUBSCRIBE sip:test at test.fi SIP/2.0
>>  > Via: SIP/2.0/TCP 192.98.101.10:5074;rport;branch=z9hG4bKjyriojar
>>  > Max-Forwards: 70
>>  > To: <sip:test at test.fi>
>>  > From: "Juha Heinanen" <sip:jh at test.fi>;tag=bdxzr
>>  > Call-ID: rtiqagnmchyfjbd at taimen
>>  > CSeq: 15 SUBSCRIBE
>>  > Contact: <sip:jh at 192.98.101.10:5074;transport=tcp>
>>  > Accept: application/pidf+xml
>>  > Event: presence
>>  > Expires: 3600
>>  > User-Agent: Twinkle/1.4.1
>>  > Content-Length: 0
>>  > 
>>  > +++ 6-3-2009 11:44:07.913387 INFO SIP ::process_sip_msg
>>  > Received from: tcp:192.98.101.10:5060
>>  > SIP/2.0 202 OK
>>  > Record-Route: <sip:192.98.101.10;r2=on;lr>
>>  > Record-Route: <sip:192.98.101.10;transport=tcp;r2=on;lr>
>>  > Via: SIP/2.0/TCP 192.98.101.10:5074;received=192.98.101.10;rport=45696;branch=z9hG4bKjyriojar
>>  > To: <sip:test at test.fi>;tag=3d2810ff0e005fca9b24aee8694a9a3d-1dda
>>  > From: "Juha Heinanen" <sip:jh at test.fi>;tag=bdxzr
>>  > Call-ID: rtiqagnmchyfjbd at taimen
>>  > CSeq: 15 SUBSCRIBE
>>  > Expires: 3600
>>  > Contact: <sip:192.98.101.10:5082>
>>  > Server: OpenXg Kamailio (1.5.0-tls (i386/linux))
>>  > Content-Length: 0
>>
>> and that actually works because the front end proxy adds r-r header to
>> the subscribe request and that makes the subscriber to use tcp also for
>> in-dialog subscribes.
>>
>> however, if i have integrated sip proxy/presence server, i get the
>> earlier described situation, where in-dialog subscribes would be sent
>> via udp:
>>
>> +++ 6-3-2009 11:58:48.202576 INFO SIP ::send_sip_tcp
>> Send to: tcp:192.98.101.10:5060
>> SUBSCRIBE sip:test at test.fi SIP/2.0
>> Via: SIP/2.0/TCP 192.98.101.10:5074;rport;branch=z9hG4bKcjentvff
>> Max-Forwards: 70
>> Proxy-Authorization: Digest username="jh",realm="test.fi",nonce="49b0f3f60000000cfef7715324b37ecd354fa849a881407f",uri="sip:test at test.fi",response="1dafa05560f703932997381d497cdb10",algorithm=MD5,cnonce="4a6bc45fed",qop=auth,nc=00000001
>> To: <sip:test at test.fi>
>> From: "Juha Heinanen" <sip:jh at test.fi>;tag=wkpvh
>> Call-ID: ajddfsugncegcre at taimen
>> CSeq: 354 SUBSCRIBE
>> Contact: <sip:jh at 192.98.101.10:5074;transport=tcp>
>> Accept: application/pidf+xml
>> Event: presence
>> Expires: 3600
>> User-Agent: Twinkle/1.4.1
>> Content-Length: 0
>>
>> +++ 6-3-2009 11:58:48.212542 INFO SIP ::process_sip_msg
>> Received from: tcp:192.98.101.10:5060
>> SIP/2.0 202 OK
>> Via: SIP/2.0/TCP 192.98.101.10:5074;rport=51275;branch=z9hG4bKcjentvff
>> To: <sip:test at test.fi>;tag=8056f5a66bd796abc1d40ab829a9781f-44eb
>> From: "Juha Heinanen" <sip:jh at test.fi>;tag=wkpvh
>> Call-ID: ajddfsugncegcre at taimen
>> CSeq: 354 SUBSCRIBE
>> Expires: 3600
>> Contact: <sip:192.98.101.10:5060;transport=tcp>
>> Server: OpenXg Kamailio (1.5.0-tls (i386/linux))
>> Content-Length: 0
>>
>> so at least in the case when presence server receives a subscribe
>> without r-r headers, it should use in its 200 ok contact the same
>> transport as what was in subscribe's contact.
>>
>> -- juha
>>
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>>     
>
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>   

-- 
Daniel-Constantin Mierla
http://www.asipto.com




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