Re: [Openbts-discuss] Bug in OpenBTS SIP REGISTER handling

[David A. B. <dbu...@jc...>]

Alexander -

There are two places to look for that bug:

(1) SIPEngine::Register in SIP/SIPEngine.cpp.  This code appears to  
return true for a "200 OK" response, continue to poll on a "100  
Trying" response and will return false for any other response,  
including 404.  That's not really clean or to spec, but should not  
cause the but you describe.

(2) Control::LocationUpdatingController in Control/ 
MobilityManagement.cpp.  This code has some logic based on the return  
of SIPEngine::Register and the value of Control.OpenRegistration in  
the gConfig table.  If that logic is broken, maybe you'll get this bug.

And if Control.OpenRegistration is defined as a non-zero value in  
OpenBTS.config, then this is not a bug at all.

-- David





On Dec 23, 2009, at 2:26 PM, Alexander Chemeris wrote:

> Hi,
>
> Ivan and I have been trying to get our Nokia 3310 and 3410 working  
> with
> 2.5 release today (without success, yeah..) and discovered, that  
> OpenBTS
> does not correctly recognize "404 NOT FOUND" server replies. Exactly,
> we've been able to connect to OpenBTS from IMSI which was not present
> in Asterisk's sip.conf. It seems something is wrong with REGISTER  
> response
> handling, but we had no time to look under the hood. If someone can  
> repeat
> our test and confirm/disprove/solve this problem before 26C3, it  
> would be
> of great help for us.
>
> -- 
> Regards,
> Alexander Chemeris.
>
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David A. Burgess
Kestrel Signal Processing, Inc.