Hi Daniel,

authentication is done in kamailio by querying the asterisk DB. Users appear in the location table, so I am assuming authentication is successful (or could I be wrong?), my modified AUTH code

route[AUTH] {

#!ifdef WITH_AUTH

#!ifdef WITH_ASTERISK

        # do not auth traffic from Asterisk - trusted!

if(route(FROMASTERISK))

                return;

#!endif

#!ifdef WITH_IPAUTH

        if((!is_method("REGISTER")) && allow_source_address()) {

                # source IP allowed

                return;

        }

#!endif

        if (is_method("REGISTER") || from_uri==myself) {

                # authenticate requests

#!ifdef WITH_ASTERISK

                if (!auth_check("$fd", "sipusers", "1")) {

#!else

                if (!auth_check("$fd", "subscriber", "1")) {

#!endif

                        auth_challenge("$fd", "0");

                        exit;

                }

                # user authenticated - remove auth header

                if(!is_method("REGISTER|PUBLISH"))

                        consume_credentials();

        }

        # if caller is not local subscriber, then check if it calls

        # a local destination, otherwise deny, not an open relay here

        if (from_uri!=myself && uri!=myself) {

                sl_send_reply("403","Not relaying");

exit;

        }

#!else

        # authentication not enabled - do not relay at all to foreign networks

        if(uri!=myself) {

                sl_send_reply("403","Not relaying");

exit;

        }

#!endif

        return;

}

Thanks,

Daniel

From: Daniel-Constantin Mierla <miconda@gmail.com>
Sent: Mittwoch, 20. März 2019 14:51
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>; Daniel Meyer-Wendt <dmeyer@ygomi.com>
Subject: Re: [SR-Users] Pseudo-Variable {$au} is NULL

Hello,

$au should be filled when the authentication is done. Are you doing it in kamailio, or the auth is done by asterisk?

Cheers,
Daniel

On 20.03.19 12:39, Daniel Meyer-Wendt wrote:

Hi All,

I am updating our Kamailio from 4.0.6 to the latest 5.2.2, we use kamailio as LB in front of two asterisk server.

My problem is that during registration forward to the asterisk servers {$au} is NULL

This is the code we have, which is the one you find in most documentations

$uac_req(furi)="sip:" + $au + "@" + $var(rip);

I logged some Pseudo-Variable to see their contents:

{$au}     NULL

{$aU}    NULL

{$Au}     username@domain.com

{$fU}     username

{$oU}    NULL

{$ru}      rU: {sip:domain.com;transport=UDP

and ended up doing this which works

$uac_req(furi)="sip:" + $fU + "@" + $var(rip);

Any idea what could be wrong?

Thanks,

Daniel

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