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

[Daniel-Constantin Mierla]

Hello,

one more thing, do:

$dlg_var(cseq_diff) = $null;

when you reset the internal flag for uac auth.

Cheers,
Daniel


On 16.07.18 21:13, Yuriy Gorlichenko wrote:
> Hi 
> thx for answer
> But still the same
> I tried to use thids flag in case if answer not 401 or 407 in failure
> route but ACK still incrased by kamailio.
> route[HANDLE_FAILURE] {
>
> if (t_check_status("401|407")) {
>    
>         uac_auth();
>         t_on_failure("HANDLE_FAILURE"); 
>         t_relay();
>         exit;
>
>     }
>     else {
>
>         if (t_check_status("40[02-689]|4[1-9][0-9]|5[0-9][0-9]") ||
> (t_branch_timeout() && !t_branch_replied())) {
>
>             msg_iflag_reset("UAC_AUTH");
>             <getting VM addr here>
>             t_relay();
>             exit;
>         }
> }
>
>
> 2018-07-16 14:42 GMT+03:00 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>:
>
>     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 <http://www.asipto.com>
>     www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>     Kamailio World Conference -- www.kamailioworld.com <http://www.kamailioworld.com>
>
>

-- 
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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