[OpenSIPS-Users] Learning how to proxy

[Bogdan-Andrei Iancu]

Hi Egil,

$rP $oP are NULL as they take info from the RURI, and as you can see, 
the RURI has no transport param.

Maybe you should get the proto info from the network level, like 
$socket_in(proto), see
https://opensips.org/Documentation/Script-CoreVar-3-2#socket_in

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com

On 5/10/23 12:08 PM, Egil Hasting via Users wrote:
> Hello List,
>
> I have recently started dig into the opensips software, and is without 
> doubt impressed by its maturity and feature set.
> However i have stumbled upon something i find weird (probably due to 
> my lack of competence).
>
> I am setting up the opensips as a "transparent" proxy towards 
> B2BUA/Registrar
>
> So current configuration is like this:
>
> Video system -> OpenSIPS -> Cisco VCS
>
> simplified cut from opensips configuration
>
> ...
> record_route();
> else if (is_method("REGISTER"))
> {
> xlog("L_INFO", "$socket_out $socket_in $ru $du $rP $oP $ou $ru \n");
> switch ($oP)
> {
>   case "udp":
>     $ru = "sip:<vcs ip>:5060";
>   break;
>   case "tcp":
>     $ru = "sip:<vcs ip>:5060;transport=tcp";
>   break;
>   case "tls":
>     $ru = "sips:<vcs ip>:5061;transport=tls";
>   break;
> }
> if (!t_relay())
> {
>   send_reply(500, "Server Internal Error 1");
>   exit;
> }
> exit;
> }
> ...
>
> What i see printed is:
> $socket_out = tls:<opensips ip>:5061
> $socket_in = tls:<opensips ip>:5061
> $ru = sip:<registration domain>
> $du = null
> $rP = udp
> $oP = udp
> $ou = sip:<registration domain>
>
> In the second leg where the Cisco VCS is, it also insist of the 
> inbound being UDP - even if UDP is disabled everywhere.
> i am particularly interested in understand how it can be flagged as a 
> "udp" on both $rP and $oP in that case, when data comes thru the TLS 
> socket?
>
> Rgs
> Egil Hasting
>
>
>
>
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