[SR-Users] ACK Cseq incrases after 404 on uac_auth()

[Daniel-Constantin Mierla]

Hello,

when you re-route to a new destination, can you try resetting the
internal flag with:

msg_iflag_reset("UAC_AUTH");

Cheers,
Daniel


On 16.07.18 10:31, Yuriy Gorlichenko wrote:
> Hi. I found some additional scenario when kamailio works incorrect
> with ACK Cseq after succesfull auth with uac_auth but unsuccesfull call:
>
> 1.Caller via kamailio as proxy (Cseq 1)
> 2.Kamailio resends call to provider with Auth method (Cseq 1)
> 3. Provider answers 401/407 (Cseq 1)
> 4. Kamailio inrases Cseq and sends invite with credentians (dialog
> track_cseq_updates = 1, uac_auth()) (Cseq 2)
> 5. Provider says - 404. not found (Cseq 2)
> 6. Kamailio resends INVITE to another server (lets say VM). It contans
> not tracked yet Cseq (Cseq 1)
> 7. VM server says 200 (Cseq 1)
> 8. Kamailio resends 200 to the caller (Сseq 1)
> 9. Caller says ACK (Cseq 1)
> 10. Kamailio incrases CSeq of ACK and resends t VM server (Сseq 2)
>
> So in this case kamialio tries to track Sceq because thining that this
> ACK belongs to the dialog that was made to the auth server
>
> So as I see here is a misunderstanding on the dialog module
> Any suggestions how to avoid it or exclude resent INVITE from the
> dialog module tracking?
>
>
>
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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference -- www.kamailioworld.com

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