Re: Replacing certain route blocks with KEMI scripts

Daniel-Constantin Mierla via sr-users <[email protected]> Wed, 18 Mar 2026 17:04:41 +0100
Newsgroups gmane.comp.voip.ser
Message-ID <[email protected]>
Hello,

this approach should work, maybe there are some errors in your python
scripts, try to run with debug=3 in kamailio config and see if you get
more debug messages around the error that could give some hints about
what happens there.

Cheers,
Daniel

On 18.03.26 15:20, Dries De Gendt via sr-users wrote:
> Hi,
>
> I was wondering if it is possible of keeping the request_route as native configuration, while replacing certain route blocks such as AUTH/REGISTRAR with python KEMI instead?
>
> The idea is to implement RFC8898, which basically requires me to challenge for bearer token and validate it afterwards if returned by the client. For my convencience, I had defined the AUTH and REGISTRAR block in python KEMI, and was calling them as such:
>
> request_route {
> ...
>
> 	$var(auth_route_ret) = python_exec("ksr_route_auth", "test\n");
> 	xlog("$var(debug_level)", "[KSR_AUTH] Return code Kamailio is $var(auth_route_ret)");
> 	if ($var(auth_route_ret) == -255) {
>     exit;
> 	}
>
> ...
> 	$var(registrar_route_ret) = python_exec("ksr_route_registrar", "test\n");
> 	xlog("$var(debug_level)", "[KSR_REGISTRAR] REGISTRAR return code Kamailio is $var(registrar_route_ret)");
> 	if ($var(registrar_route_ret) == -255) {
>     exit;
> 	}
> ...
>
> }
>
> While the register itself seems to work, it seems that other blocks seem to fail as they would likely expect KSR?
>
> ERROR: {1 112367482 INVITE f0af27cd-9d75-123f-79a9-b4e9b8034b4e} <core> [core/kemi.c:3772]: sr_kemi_cbname_lookup_idx(): index 1 is out of range
>
> Any idea if this would be possible, or should I determine wether to go native cfg or KEMI?
>
> Best regards,
> Dries
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-- 
Daniel-Constantin Mierla (@ asipto.com)
twitter.com/miconda -- linkedin.com/in/miconda
Kamailio Consultancy, Training and Development Services -- asipto.com
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