[Kamailio-Users] TLS Multiple records not read

[Klaus Darilion]

I would verify if the received fragment really contains 2 complete SIP 
messages (e.g. 2xCRLF at the end of the SIP headers and if 
Content-Length header is correct).

For debugging, TLS is PITA.

Maybe the SIP server shows the same behavior when using TCP. Otherwise 
you can try to configure the NULL:CIPHER on both servers - then you see 
the plaintext SIP message in the TLS packets.

regards
klaus

Jijo Jose wrote:
> Hi All,
>  
> We have a SIP server which enabled NAGLE algorithm and proxy as openser 
> ver 1.1
>  
> SIP Server send a TLS multiple records( 2 SIP messages) in a packet to 
> openser. Openser is reading only the first record( first SIP message). 
> The second TLS record(sip message) is read only when the next 
> message recieved by openser from the SIP Server.
>  
>  
> I would like to know anybody observed this issue.  I have compared the 
> codebase of kamailio 1.4 and openser 1.1 but didin't find any diffrence 
> for TLS.
>  
> I have looked at the API _tls_read() in openser which is same as that of 
> kamilio.
>  
> Don't we need to use SSL_pending() after SSL_read() to verify any buffer 
> is left in the SSL layer ?
>  
> Do you think is it due to the poll method error? The poll method we use 
> is POLL_SIGIO_RT
>  
> Please let me know your comments.
>  
> Thanks in advance.
>  
> Jijo
> 
> 
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