[OpenSIPS-Users] Mid-Registrar Absorb 2nd Register(w/ AuthHeader) Request - Only on Reg Renewal.

[Liviu Chircu]

Thanks for the nice report, Ali - I'm already testing a fix for this, 
and will keep you posted!

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 12.07.2017 16:26, Ali Raza wrote:
> Hello Guys,
>
> I am new to OpenSIPS. I am currently test mid-registrar module with 
> FreeSwitch and I am facing a issue not sure if its a bug or its me.
>
> Let me explain whats happening:
>
> I am running OpenSIPS  mid-registrar in contact-throttling 
> mode(mode:1) with usrloc mode:0 - because mid-registrar was crashing 
> again and again then I saw the 
> post https://github.com/OpenSIPS/opensips/issues/1094 - so that issue 
> is now gone with  usrloc mode:0.
>
> When I run opensips my devices(soft phone: zopier and sip phone: 
> fanvil) register perfectly but as soon the registration time for 
> fanvilphone is reaching expiry(outging expiry) opensips passes my 
> registrartion request to freeswitch - Freeswitch sends back 
> 401unauthorised message which is delivered to the phone by opensips. 
> This time phone sends register request with AuthHeader but this 
> request gets absorbed by mid-registrar and reply from UAC with 
> AuthHeader never reach UAS and freeswitch then remove the 
> registrartion from its database assuming the UAC is dead. But when the 
> softphone-Zopier outgoing register expiring somehow Softphone sends 
> the register request with AuthHeader and as OpenSIPs forwards 1 
> register request to freeswtich - Freeswitch renew its registrartion. 
> So softphone remain registered and works fine.
>
> 2nd/Renew Registration from FanvilPhone:
>
> 1. UAC==Reg==>OpenSIPS==>FreeSwitch
>
> 2. FreeSwitch==401==>OpenSIPs==401==>UAC
>
> 3. UAC==Reg w/Auth-Header==>OpenSIPs(Absorbe by mid-registrar: 
> Returncode: 2)
>
> 4. OpenSIPs==Reply 200==>UAC (so actually phone thinks its registered)
>
> 2nd/Renew Registration from SoftPhone Zopier:
>
> 1. SoftPhone==Reg w/Auth-Header==>OpenSIPs==Reg w/Auth-Header==>FreeSwitch
>
> 2. FreeSwitch==Reply 200==>OpenSIPs==Reply 200==>SoftPhone-Zopier.
>
>
> MY OPENSIPS CONFIG -- USED FOR MID-REGISTRAR:
>
> #### USeR LOCation module
> loadmodule "usrloc.so"
> modparam("usrloc", "nat_bflag", "NAT")
> modparam("usrloc", "db_mode", 0)
> modparam("usrloc", "use_domain", 1)
>
> #### MID-REGISTRAR module
> loadmodule "mid_registrar.so"
> modparam("mid_registrar", "mode", 1) /* 0 = mirror / 1 = ct / 2 = AoR */
> modparam("mid_registrar", "outgoing_expires", 180) ##Set to low for 
> testing purpose.
> modparam("mid_registrar", "insertion_mode", 0) /* 0 = contact; 1 = path */
>
> if ( !(is_method("REGISTER")) ) {
>         if (check_source_address("10")) {
>               xlog("looking up $ru!\n");
>               if (!mid_registrar_lookup("location")) {
>                    t_reply("404", "Not Found");
>                    exit;
>               }
>
>               t_relay();
>               exit;
>        }
> }
>
> if (is_method("REGISTER"))
> {
>      #mid_registrar_save("location");
>      xlog("BEFORE IT PASS TO MID-REG SAVE!");
>      mid_registrar_save("","m");
>      switch ($retcode) {
>      case 1:
>           xlog("forwarding REGISTER to main registrar ($$ci=$ci) - 
> $fd\n");
>           #Call script to set $ru - Testing!
>           #perl_exec("dest_host","$fd");
>           $ru = "sip:dispatcher\@10.10.7.206:5070";
>           xlog("NEW HOST VALUE: $ru");
>           t_relay();
>           break;
>     case 2:
>          xlog("absorbing REGISTER! ($$ci=$ci)\n");
>          break;
>     default:
>          xlog("failed to save registration! ($$ci=$ci)\n");
>     }
>     exit;
> }
>
>
> LET ME KNOW IF YOU NEED ANYTHING ELSE.
>
> THANKS!
>
> Regards
> Ali Raza
>
>
>
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