[OpenSIPS-Users] topology_hiding

[Bogdan-Andrei Iancu]

Hi,

First, note that "2" is written "two", not "to" - just to be sure people 
do understand your explanations :).

Now, you say you still see the Client IP in the Call-ID and in the FROM 
headers ?? If that is the case:

1) to change the call-id, see the "C" option in the topology_hiding() call

2) The FROM hdr is outside the topology-hiding scope, but if you want to 
change it see the uac_replace_from() function from the the uac module.

Regards,

Bogdan-Andrei Iancu
   OpenSIPS Founder and Developer
   http://www.opensips-solutions.com

On 11/14/2017 05:49 PM, Kirill Galinurov wrote:
> Hi. All we try topology hiding module.
> We have opensips 2.3/2 like sbc with to interfaces.
> And ip addresses are X.X.X.X and y.y.y.y.
> We have to softswitch with ip addreses z.z.z.1 and z.z.z.2
> Also we loadbalancing calls between softswitch .
> My config
> if(is_method("INVITE"))  {
>            create_dialog();
>            topology_hiding();
>            if (check_address("1","$si","$sp","any","$avp(ctx)")){
>                force_send_socket(udp:10.240.250.121:5126 
> <http://10.240.250.121:5126>);
>                setflag(CALL_SW);
>                do_accounting("log", "cdr|failed");
>                $dlg_val(callee) = $rU;
>                $dlg_val(calling) =$fU;
>                $dlg_val(callcount) = $var(size);
>                xlog("L_INFO","+++++Incoming call from $fU $sp $proto 
> \n");
>                $acc_extra(src_ip) = $si;
>                $acc_leg(caller) = $fU;
>                $acc_leg(callee) = $rU;
>                if(!lb_start_or_next("1","st","s")){
>                    switch($rc){
>                        case -1:
>                            xlog("L_INFO","error  500 General dispatch 
> error\n");
>                            send_reply("503", "No resource avaiable");
>                            acc_log_request("503 General dispatch error");
>                            break;
>
>                        case -2:
>                            xlog("L_INFO", "503 No free resources on 
> nodes\n");
>                            send_reply("503", "No resource avaible");
>                            acc_log_request("503 No free resource on 
> nodes");
>                            break;
>                        case -3:
>                            xlog("L_INFO","606 No nodes avaible\n");
>                            send_reply("503", "No resource avaible");
>                            acc_log_request("606 No nodes avaible");
>                            break;
>                    }
>                  } else {
>                        xlog("L_INFO","Dispatch request to softswitch 
> $du\n");
>                        $avp(node) = $du;
>                        $acc_extra(dst_node) = $du;
>                        t_on_failure("fail_softswitch");
>                        route(relay);
>                }
>            }
>        else
>            if (check_address("2","$Ri","$Rp","any","$avp(ctx)")){
>                setflag(CALL_FROM_SW);
>                do_accounting("log", "cdr|failed");
>                $dlg_val(callee) = $rU;
>                $dlg_val(calling) = $fU;
>                $dlg_val(callcount) = $var(size);
>                xlog("L_INFO","+++++Outgouing call from $fU $sp $proto 
> \n");
>                $acc_extra(src_ip) = $si;
>                $acc_leg(caller) = $fU;
>                $acc_leg(callee) = $rU;
>                if(!lb_start_or_next("$avp(ctx)","st","s")){
>                    switch($rc){
>                        case -1:
>                            xlog("L_INFO","error  500 General dispatch 
> error\n");
>                            send_reply("503", "No resource avaiable");
>                            acc_log_request("503 General dispatch error");
>                            break;
>
>                        case -2:
>                            xlog("L_INFO", "503 No free resources on 
> operator\n");
>                            send_reply("503", "No resource avaible");
>                            acc_log_request("503 No free resource on 
> operator");
>                            break;
>                        case -3:
>                            xlog("L_INFO","606 No resources avaible\n");
>                            send_reply("503", "No resource avaible");
>                            acc_log_request("606 No nodes avaible");
>                            break;
>                    }
>                  } else {
>                        xlog("L_INFO","Dispatch request to operator sbc 
> $du\n");
>                        $avp(node) = $du;
>                        $acc_extra(dst_node) = $du;
>                        t_on_failure("fail_operator");
>                        route(relay);
>                }
>            }
>        else
>             sl_send_reply("403", "Forbidden posible wrong port");
>
>        }
> }
> In invite on softswitch i see
> NVITE sip:12345 at XX.XX.XX.XX:5126 SIP/2.0
> Via: SIP/2.0/UDP YY.YY.YY.YY:5126;branch=z9hG4bKe4d9.14b51d57.0
> Max-Forwards: 69
> From: "Anonymous" <sip:12345 at CC.CC.CC.CC 
> <mailto:sip%3A12345 at CC.CC.CC.CC>>;tag=as59cc9e35
> To: <sip:12345 at xx.xx.xx.xx:5126>
> Contact: <sip:10.240.250.121:5126;did=e7e.87a97756>
> Call-ID: 0068dba856ae05e8406504ab71fc9900 at CC.CC.CC.CC.CC 
> <mailto:0068dba856ae05e8406504ab71fc9900 at CC.CC.CC.CC.CC>
> CSeq: 102 INVITE
>
> Where CC is client ip. I thithk it must be opensips ip adress 
> 10.240.250.121:5126 <http://10.240.250.121:5126>
> What is wrong?
>
>
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