[Users] Re: t_replicate on register+ 404 not found + troubles

[Bogdan-Andrei Iancu]

Hi Largo,

the replicated REGISTER should not be authenticated by the other server 
as the request was already authenticate by it. You should do something 
like this:
    if (src==other server) {
          save();
    } else {
          do auth
          save()
          replicate()
    }

regards,
Bogdan

Largo wrote:

> Hi Bogdan,
>
>
> I got a problem regarding the t_replicate function.
> I got an openser server working as a loadbalancer with (DISPATCHER); 
> let´s call it OPENSER-0.
> He is dispatching to 2 openser servers ; let s call them OPENSER-1 and 
> OPENSER-2.
>
> Everything works fine, but if one analyses the packets and the error 
> logs closely, we observed the following:
> - Every day there is only one of the servers who is correctly woking , 
> the second one sends always a "404 Not Found".
> - There are problems by replicating: OPENSER-1 as example, receives a 
> "401 Unauthorized" back from the OPENSER-2
> - And in the syslog files , I see this:
> /Jul 14 13:58:56 OPENSER-2 /usr/local/sbin/openser[30005]: PG[224] 
> str2valp got string f3415bc4b2e66989142d134d0d33be91
> Jul 14 13:58:56 OPENSER-2 /usr/local/sbin/openser[30005]: PG[224] 
> str2valp got string Jul 14 13:58:56 OPENSER-2 
> /usr/local/sbin/openser[30005]: SRC not 23: Replicating...
> /
> - Here are scarps from the openser.cfg Files of the 3 servers (only 
> important configs)
>
> --------------------------------------------------------
> #OPENSER-0 (DISPATCHER)
>
> listen=192.168.1.21
> alias="openser_0.XXX.com"
>
> ...
>
> route{
>        # log all incomming requests
>        xlog("L_INFO", "RECV: <$rm> signal from ip <$si> r-uri <$ru> 
> from <$fu> to <$tu> contact <$ct>\n");
>
>        if (!mf_process_maxfwd_header("10")) {
>                sl_send_reply("483","Too Many Hops");
>                exit;
>        };
>
>        if (msg:len >=  2048 ) {
>                sl_send_reply("513", "Message too big");
>                exit;
>        };
>
>        ds_select_dst("2", "0");
>        forward(uri:host, uri:port);
> }
>
>
>
>
> --------------------------------------------------------
> --------------------------------------------------------
> #OPENSER-1
>
> listen=0.0.0.0
> alias="openser_0.XXX.com"
>
> ...
>
>                if (method=="REGISTER") {
>
>                        # Uncomment this if you want to use digest 
> authentication
>                        if 
> (!www_authorize("sip-main.kh.emindgroup.com", "subscriber")) {
>                                
> www_challenge("sip-main.kh.emindgroup.com", "0");
>                                exit;
>                        };
>
>                        if(!save("location"))
>                        {
>                                sl_reply_error();
>                        }
>                        else if( !src_ip==ip-of-openser-server-2 )
>                        {
>                                xlog("L_INFO", "SRC not 
> openser-server-4: Replicating...");
>                                #if(t_newtran())
>                                #{
>                                #       xlog("L_INFO", "NewTran: 
> Replicating...");
>                                t_replicate("ip-of-openser-server-2", 
> "5060");
>                                #}
>                        }
>                        else
>                        {
>                                xlog("L_INFO", "SRC 24: do nothing...");
>                        }
>                        exit;
>                };
>
>
> --------------------------------------------------------
> --------------------------------------------------------
> #OPENSER-2
>
> listen=0.0.0.0
> alias="openser_0.XXX.com"
>
> ...
>
>                if (method=="REGISTER")
>                {
>                        # Uncomment this if you want to use digest 
> authenticatio
> n
>                        if 
> (!www_authorize("sip-main.kh.emindgroup.com", "subscr
> iber")) {
>                                
> www_challenge("sip-main.kh.emindgroup.com", "0")
> ;
>                                exit;
>                        };
>
>                        if(!save("location"))
>                        {
>                                sl_reply_error();
>                        }
>                        else if( !src_ip==^ )
>                        {
>                                xlog("L_INFO", "SRC not 
> openser-server-1: Replicating...");
>                                #if(t_newtran())
>                                #{
>                                #xlog("L_INFO", "NewTran: 
> Replicating...");
>                                t_replicate("ip-of-openser-server-1", 
> "5060");
>                                #}
>                        }
>                        else
>                        {
>                                xlog("L_INFO", "SRC 23: do nothing...");
>
>                        }
>                        exit;
>                };
>
>                lookup("aliases");
>                if (!uri==myself) {
>                        append_hf("P-hint: outbound alias\r\n");
>                        route(1);
>                };
>
>                # native SIP destinations are handled using our USRLOC DB
>                if (!lookup("location")) {
>                        sl_send_reply("404", "Not Found");
>                        exit;
>                };
>                append_hf("P-hint: usrloc applied\r\n");
>        };
>
>        route(1);
> }
>
> -------------------------------------------------------------------------- 
>
>
> Thanks in advance
> Largo !