[OpenSIPS-Users] CRLF support over TLS

Răzvan Crainea razvan at opensips.org
Mon Mar 25 04:35:51 EDT 2019

Hi, Vitalii!

Did you try to tune your tls_crlf_* parameters?

Best regards,

On 3/22/19 8:16 PM, Vitalii Aleksandrov wrote:
> Hi,
> One of my SIP endpoints send CRLF (0x0d 0x0a) messages over TLS 
> connections to opensips. Opensips drops TLS a connection to this phone 
> after "tcp_max_msg_time" seconds. The same client works fine over TCP 
> and CRLF messages are just ignored by a proxy.
> rfc3261 section 7.5 says:
>> Implementations processing SIP messages over stream-oriented
>>     transports MUST ignore any CRLF appearing before the start-line
> Is it a bug or did I missed some configuration options to make it work?
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Răzvan Crainea
OpenSIPS Core Developer
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