I used to have this problem, but I don't have it right now. I've never
fixed the problem, but I'm on 5.6.1 now and it doesn't happen.
What version have you got?
James
On Mon, 23 Oct 2023 at 07:26, Benoit Panizzon via sr-users
<sr-users@lists.kamailio.org> wrote:
>
> Hi Karsten
>
> > how are you measure the traffic you don't want to your Homer? Print stuff
> > in that Kamailio event route or something else?
>
> Basically, I want to mirror sip messages to homer, only sip messages
> relevant to calls, not anything else which might be processed by
> kamailio.
>
> modules.inc:loadmodule "siptrace.so"
> modules.inc:modparam("siptrace", "trace_flag", 22);
> modules.inc:modparam("siptrace", "trace_on", 1)
> modules.inc:modparam("siptrace", "trace_mode", 1)
> modules.inc:modparam("siptrace", "hep_mode_on", 1)
> modules.inc:modparam("siptrace", "hep_version", 3)
> modules.inc:modparam("siptrace", "hep_capture_id", HEP_CAP_AGENT)
> modules.inc:modparam("siptrace", "duplicate_uri", HOMERSIPURI)
>
> I also use the xhttp interface for jsonrpc and a custom API.
>
> For this I have kamailio also listen to TCP port 8080 to have those API
> xhttp requests clearly separated from call traffic.
>
> But, as I understand, xhttp requests are initially handled as if they
> were sip requests and get processed request_route{}
>
> So my request route starts with:
>
> request_route {
>
> # Handle DMQ requests
> route(DMQ_CAPTURE);
>
> # Make sure we operate on the correct port (not on the xhttp one)
> if ($Rp != 5060 && $Rp != 5061) {
> xlog("L_ERROR", "REQUEST_ROUTE $rm to wrong port $Rp\n");
> exit;
> }
>
> so all SIP method requests to port 8080 are being dropped.
>
> I process xhttp traffic with the appropriate event route and of course
> reject http requests to sip ports with the appropriate http error
> message.
>
> event_route[xhttp:request] {
> if ($avp(debug) > 0) {
> xlog("L_INFO", "$cfg(route): XHTTP Request to URI: $hu Port: $Rp
> BODY: $rb\n");
> }
> if ($Rp != 8080) {
> # We got a HTTP Request on a sip port. Reject!
> xhttp_reply("418", "I'm a teapot", "text/html", "<html><body>I'm not
> a Web-Server!</body></html>");
> exit;
> }
> if ($hu =~ "^/RPC") {
> ### KAMAILIO JSONRCP pass-through
> jsonrpc_dispatch();
> } else if ($hu =~ "^/API") {
> ### IMPROWARE API
>
> [...]
>
> What I observe is the siptrace module being triggered right at the
> start of request_route. This makes sense, I want to mirror every sip
> message.
>
> But his also causes mirroring of the xhttp requests and replies to port
> 8080.
>
> Is there a way to prevent this?
>
> siptrace has an event route capable of filtering, as I understand it is
> only possible to filter on the SIP request method, not anything else:
>
> event_route[siptrace:msg] {
> if(is_method("KDMQ")) {
> drop();
> }
> }
>
> Do I miss something? How can I prevent/filter xhttp requests to be
> mirrored by the siptrace module?
>
> Mit freundlichen Grüssen
>
> -Benoît Panizzon-
> --
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