[SR-Users] UAC authentication

[Daniel-Constantin Mierla]

Hello,

you have to set authentication username and password inside the
$uac_req(...) -- see the attributes for it at:

  -
https://www.kamailio.org/wiki/cookbooks/4.4.x/pseudovariables#uac_req_key

Cheers,
Daniel


On 20/01/2017 07:26, anfecora wrote:
> can someone please guide me where to find the usage of auc module,
> thanks in advance.
>
> I am registering the uac in one end then i want to forward that
> registration to an external registrar, if i use $du some domain, some
> of the ipv6 info is going to be forwarded, i need to make it look more
> like an a b2bua than a outbound proxy therefore i need to use the auc
> module(also i need to cover all ipv6 info since i am proxying from
> ipv4 to ipv6).
>
> i am able to register the client to kamailio, then kamailio send the
> registration to the external registrar, but when the registrar sends
> back the challenge uac does not reply, any ideas how can achieve this.
>
> uac(linphone etc) --registration--->kamailio(registrar
> module)------register(uac)--->SBC
>
> sbc----invite---->kamailio(lookup)---------invite---->uac(linphone etc)
>
> this is the code i am using.
>
>
>
> # Handle SIP registrations
> route[REGISTRAR] {
> xlog("REGISTERING ");
>         if (is_method("REGISTER"))
>         {
>                 if(isflagset(FLT_NATS))
>                 {
>                         setbflag(FLB_NATB);
>                         # uncomment next line to do SIP NAT pinging
>                         ## setbflag(FLB_NATSIPPING);
>                 }
>                 if(af==INET6)
>                         setbflag(FLB_IPV6);
> xlog("IT IS  IPV6");
>                 if (!save("location"))
>                         sl_reply_error();
> route(REGSBCFWD);
>         exit;
>         }
> }
>
> route[REGSBCFWD]{
> xlog("CREATING OTHER LEG TO THE SBC");
> if(!is_method("REGISTER"))
>         {
>                 return;
>         }
> xlog("CREATING PACKAGE $si -- $fU-- $au--$du-- $tU --$ru");
>
>         $var(rip) = "sip.somedomain.com <http://sip.somedomain.com>";
>         $uac_req(method)="REGISTER";
>         $uac_req(ruri)="sip:" + $var(rip) + ":" + "5060";
>         $uac_req(furi)="sip:" + $tU + "@" + $var(rip);
>         $uac_req(turi)="sip:" + $tU + "@" + $var(rip);
>         $uac_req(hdrs)="Contact: <sip:" + $tU + "@"
>                                 + "10.0.0.222"
>                                 + ":" "5060" + ">\r\n";
>         if($sel(contact.expires) != $null)
>                 $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
> $sel(contact.expires) + "\r\n";
>         else
>                 $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
> $hdr(Expires) + "\r\n";
>         uac_req_send();
>
>
>
>                 }
>
>
>
>
>
> REGISTER sip:sip.somedomain.com:5060 <http://sip.somedomain.com:5060>
> SIP/2.0.
> Via: SIP/2.0/UDP
> 10.0.0.222:5060;branch=z9hG4bK285f.13a7f0c0000000000000000000000000.0.
> To: <sip:14052423 at sip.somedomain.com
> <mailto:sip%3A14052423 at sip.somedomain.com>>.
> From: <sip:14052423 at sip.somedomain.com
> <mailto:sip%3A14052423 at sip.somedomain.com>>;tag=a82eaf71666096790d1397845fbd3254-ebaa.
> CSeq: 10 REGISTER.
> Call-ID: 357e21ae51d8416d-26605 at 10.0.0.222
> <mailto:357e21ae51d8416d-26605 at 10.0.0.222>.
> Max-Forwards: 70.
> Content-Length: 0.
> User-Agent: kamailio (4.4.4 (x86_64/linux)).
> Contact: <sip:140524 at 10.0.0.222:5060 <http://sip:140524@10.0.0.222:5060>>.
> Expires: 3600.
> .
>
>
>
> SIP/2.0 401 Unauthorized.
> Via: SIP/2.0/UDP
> 10.0.0.222:5060;branch=z9hG4bK4b53.ad842757000000000000000000000000.0.
> To: <sip:14052423 at sip.somedomain.com
> <mailto:sip%3A14052423 at sip.somedomain.com>>.
> From: <sip:14052423 at sip.somedomain.com
> <mailto:sip%3A14052423 at sip.somedomain.com>>;tag=a82eaf71666096790d1397845fbd3254-37da.
> Call-ID: 357e21ae51d8416d-26603 at 10.0.0.222
> <mailto:357e21ae51d8416d-26603 at 10.0.0.222>.
> CSeq: 10 REGISTER.
> WWW-Authenticate: Digest realm="sip.somedomain.com
> <http://sip.somedomain.com>",
> nonce="f5831435-3e69-4b78-ab6d-dcb0897e477b", algorithm=MD5, qop="auth".
> User-Agent: somedomain.com <http://somedomain.com> Host:some proxy.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
> REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE.
> Content-Length: 0.
> .
>
>
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-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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