[sr-dev] MSRP forwarding problem

[Gavin Llewellyn]

Daniel,

Sorry for my slow response - that patch fixes the issue, thank you.

Regards,
Gavin

On 09/11/2012 10:09, Daniel-Constantin Mierla wrote:
> Hello,
>
> can you try with the patch from this commit?
>
> http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=b255c406ba09ff229361a3bc14cc1c9fd076b52e 
>
>
> Cheers,
> Daniel
>
> On 11/8/12 12:09 PM, Gavin Llewellyn wrote:
>> I've been doing some testing of MSRP clients, using Kamailio as the 
>> MSRP relay.  While testing file transfers, I found that certain files 
>> were getting stuck at a consistent offset, though the offset varied 
>> depending on the file.  With TCP traces, I found that Kamailio 
>> continues to send 200 responses to the file sender, but stops 
>> forwarding the chunks to the receiver.  This seems to continue until 
>> the TCP read buffer overflows, at which point further chunks are 
>> forwarded as normal (the previous chunks are lost).
>>
>> I suspected it may be due to file content, so after narrowing down 
>> the chunk sizes, I've identified the two-character problem sequence: 
>> 0a 2d (a.k.a. line-feed dash).  I can reproduce the issue with a 
>> simple, single-chunk message where the body only contains these two 
>> characters.  Is Kamailio getting this confused with the start of the 
>> MSRP end-line?
>>
>> An example message is below, with all the CRs and LFs made explicit:
>>
>> MSRP wm4qf7sj SEND\r\n
>> To-Path: msrp://192.168.0.74:2855/s.7692.44.867977799;tcp 
>> msrp://192.168.0.74:2855/s.7693.28.862091983;tcp 
>> msrp://192.168.0.144:2855/7k5myvdmx7;tcp\r\n
>> From-Path: msrp://192.168.0.124:2855/8ka1fpl1bw;tcp\r\n
>> Message-ID: 3561360866.5sxkocu6\r\n
>> Success-Report: yes\r\n
>> Failure-Report: yes\r\n
>> Content-Disposition: inline\r\n
>> Byte-Range: 1-2/2\r\n
>> Content-Type: text/plain\r\n
>> \r\n
>> \n-\r\n
>> -------wm4qf7sj$\r\n
>>
>> Regards,
>> Gavin
>>
>>
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>