[SR-Users] uac_auth()

Alex Balashov abalashov at evaristesys.com
Wed Jun 16 10:32:17 CEST 2010


On 06/16/2010 04:27 AM, Iñaki Baz Castillo wrote:
> 2010/6/16 Alex Balashov<abalashov at evaristesys.com>:
>>   Also, CSeq is not being incremented.
>
> Why do you want CSeq being incremented by the proxy? Note that the UAS
> still knows nothing about the request until it receives the first
> INVITE (with credentials) from he proxy.

Am I misreading 3261 Section 22.3?


       If a proxy were to resubmit a request adding a
       Proxy-Authorization header field value, it would need
       to increment the CSeq in the new request.  However, this
       would cause the UAC that submitted the original request to
       discard a response from the UAS, as the CSeq value would
       be different.

Since the proxy is the authentication actor, I assumed this is how it 
should be done.  On the other hand, if the purpose of the UAC module 
is to "spoof" a challenge response as if it really came from the UAC, 
I suppose this is not appropriate.

Either way, regardless of CSeq, the Proxy-Authorization header is not 
being added to the resent request.  Unless I am doing something wrong, 
I believe uac_auth() doesn't work.

-- 
Alex Balashov - Principal
Evariste Systems LLC
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