[SR-Users] (no subject)
Tihomir Culjaga
tculjaga at gmail.com
Tue Feb 13 12:05:05 CET 2018
Hi Daniel,
thanks for you e-mail... i will try that approach.
in the main time i exploited the "received" parameter in route header sent
by freeswitch and with a bit of manipulation i managed to rout the call
back to WS client :=)
Im will definitely try to enable r2 and come back with the results.
--- snip ---
route[SIPOUT] {
if (!uri==myself) {
xlog("L_INFO", "ROUTE HEADER value: $hdr(Route)\n");
$var(rcv_regex)=
$(hdr(Route){re.subst,/.*received=(.*)/\1/});
$var(ip)= $(var(rcv_regex){s.select,0,~});
$var(port)= $(var(rcv_regex){s.select,1,~});
$var(proto_number)= $(var(rcv_regex){s.select,2,~});
if ($var(proto_number) == "1") {
$var(trans) = "UDP";
} else if ($var(proto_number) == "6" ) {
$var(trans) = "ws";
} else {
# not interested for now
$var(trans) = "TCP";
}
$var(request_route_regex) = $var(ip) + ":" + $var(port) +
";transport=" +$var(trans);
xlog("L_INFO", "ROUTE HEADER - rcv_regex:
$var(rcv_regex)\n");
xlog("L_INFO", "ROUTE HEADER - request route :
$var(request_route_regex)\n");
append_hf("P-hint: outbound\r\n");
$ru="sip:" + $rU + "@"+$var(request_route_regex);
xlog("SCRIPT: Request uri = $ru\n");
route(RELAY);
}
}
--- snip ---
On 13 February 2018 at 11:48, Daniel-Constantin Mierla <miconda at gmail.com>
wrote:
> Hello,
>
> you have an explicit set of $fs, which is setting the send socket. You
> have to do then when receiving from WS, not when going to WS.
>
> In 5.1, you can try to enable:
>
> - https://www.kamailio.org/docs/modules/stable/modules/path.
> html#path.p.enable_r2
>
> and then let kamailio do all about send socket (remove the assignments to
> $fs).
>
> Cheers,
> Daniel
>
> On 09.02.18 22:57, Tihomir Culjaga wrote:
>
> Hi,
>
> Im new to Kamailio so im sorry if some of my questions will sound a bit
> wierd :=)
>
> i have a setup like this: (Kamailio version 5.1)
>
> UA > Kamailio > Freeswitch
>
>
> Kamailio forwards registration to freeswitch without saving location.
>
> I have configured sip over websockets and im able to register to
> Freeswitcha via kamailio.
> Also, i use add_path_received() so kamailio adds a path header to register
> messages
>
>
> recv 945 bytes from udp/[192.168.50.60]:5060 at 22:38:07.283809:
> -----------------------------------------------------------
> -------------
> REGISTER sip:192.168.50.60 SIP/2.0
> Via: SIP/2.0/UDP 192.168.50.60;branch=z9hG4bKa929.
> 0f66d60c4333f4a3a9d83d41a63295d9.0
> Via: SIP/2.0/WSS 192.0.2.110;rport=63296;received=192.168.200.77;
> branch=z9hG4bK6931435
> Max-Forwards: 69
> To: <sip:1001 at 192.168.50.60>
> From: <sip:1001 at 192.168.50.60>;tag=vq30modpgd
> Call-ID: dlnrna9o4ngn25fb9d1vi2
> CSeq: 196 REGISTER
> Authorization: Digest algorithm=MD5, username="1001",
> realm="192.168.50.60", nonce="744aaa14-4a86-4ce3-b6d6-419b0a34ee90", uri=
> "sip:192.168.50.60", response="9b592b874474d4ffe5769f2410baceef",
> qop=auth, cnonce="sf7ff0fp8tm5", nc=00000001
> Contact: <sip:1001 at 192.0.2.110;transport=ws>;reg-id=1;+sip.
> instance="<urn:uuid:587f4694-7e55-46dc-a858-579a82556a20>";expires=600
> Allow: ACK,CANCEL,INVITE,MESSAGE,BYE,OPTIONS,INFO,NOTIFY,REFER
> Supported: path, gruu, 100rel, outbound
> User-Agent: SIP.js/0.7.0 BB
> Content-Length: 0
> Path: <sip:192.168.50.60;lr;received=192.168.200.77~63296~6>
>
> -----------------------------------------------------------
> -------------
> send 719 bytes to udp/[192.168.50.60]:5060 at 22:38:07.329444:
> -----------------------------------------------------------
> -------------
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.50.60;branch=z9hG4bKa929.
> 0f66d60c4333f4a3a9d83d41a63295d9.0
> Via: SIP/2.0/WSS 192.0.2.110;rport=63296;received=192.168.200.77;
> branch=z9hG4bK6931435
> From: <sip:1001 at 192.168.50.60>;tag=vq30modpgd
> To: <sip:1001 at 192.168.50.60>;tag=Spya88DKU9gSQ
> Call-ID: dlnrna9o4ngn25fb9d1vi2
> CSeq: 196 REGISTER
> Contact: <sip:1001 at 192.0.2.110;transport=ws>;expires=600
> Date: Fri, 09 Feb 2018 21:38:07 GMT
> User-Agent: FreeSWITCH-mod_sofia/1.6.19+git~20171120T163416Z~
> b1b21d0695~64bit
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
> REGISTER, REFER, NOTIFY
> Supported: timer, path, replaces
> Path: <sip:192.168.50.60>;lr;received=192.168.200.77~63296~6
> Content-Length: 0
>
> -----------------------------------------------------------
> -------------
>
>
>
>
> Once, registered, im trying to originate a call to the registered endpoint
> from freeswitch
>
>
> this results in an invite like this:
>
> send 1757 bytes to udp/[192.168.50.60]:5060 at 22:46:21.252549:
> -----------------------------------------------------------
> -------------
> INVITE sip:1001 at 192.0.2.110;transport=ws SIP/2.0
> Via: SIP/2.0/UDP 192.168.50.65:15060;rport;branch=z9hG4bKXHcX316pDgXZB
> Route: <sip:192.168.50.60>;lr;received=192.168.200.77~63296~6
> Max-Forwards: 70
> From: "" <sip:1002 at 192.168.50.65>;tag=tZQ393yprj7BK
> To: <sip:1001 at 192.0.2.110;transport=ws>
> Call-ID: 8212b700-8885-1236-08b3-000c293ae94e
> CSeq: 118770326 INVITE
> Contact: <sip:mod_sofia at 192.168.50.65:15060>
> User-Agent: FreeSWITCH-mod_sofia/1.6.19+git~20171120T163416Z~
> b1b21d0695~64bit
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
> REGISTER, REFER, NOTIFY
> Supported: timer, path, replaces
> Allow-Events: talk, hold, conference, refer
> Content-Type: application/sdp
> Content-Disposition: session
> Content-Length: 891
> X-FS-Support: update_display,send_info
> Remote-Party-ID: <sip:1002 at 192.168.50.65>;party=calling;screen=yes;
> privacy=off
>
> Freeswitch appends a route header to the invite specifying kamailio as
> route and a received with original uri.
>
> well, here is the issue ... im failing to hit the SIP over websocket
> client... Kamailio
>
>
>
>
> my RELAY route is like this
>
>
>
> route[RELAY] {
>
> # enable additional event routes for forwarded requests
> # - serial forking, RTP relaying handling, a.s.o.
> if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {
> if(!t_is_set("branch_route")) {
> xlog("L_ALERT", "Its a Branch, go manage that !!!
> <$ru>\n");
> t_on_branch("MANAGE_BRANCH");
> }
> }
> if (is_method("INVITE|SUBSCRIBE|UPDATE")) {
> if(!t_is_set("onreply_route")) {
> xlog("L_ALERT", "its onreply_route, go manage !!!
> <$ru>\n");
> t_on_reply("MANAGE_REPLY");
>
> }
> }
> if (is_method("INVITE")) {
> if(!t_is_set("failure_route")) {
> xlog("L_ALERT", "Its failure_route, go manage !!!
> <$ru>\n");
> t_on_failure("MANAGE_FAILURE");
> }
> }
>
> $fs = "udp:192.168.50.60:5060";
> xlog("L_ALERT", "Trying to rely !!! <$ru>\n");
> if (!t_relay()) {
> xlog("L_ALERT", "failed to rely !!! <$ru>\n");
> sl_reply_error();
> }
> exit;
> }
>
> here is a part of the log:
>
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: WARNING: <core>
> [core/forward.c:231]: get_send_socket2(): protocol/port mismatch (forced
> udp:192.168.50.60:5060, to ws:192.0.2.110:5060)
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: DEBUG: <core>
> [core/msg_translator.c:424]: clen_builder(): content-length: 916 (916)
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: WARNING: <core>
> [core/msg_translator.c:2765]: via_builder(): TCP/TLS connection (id: 0) for
> WebSocket could not be found
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: ERROR: <core>
> [core/msg_translator.c:1980]: build_req_buf_from_sip_req(): could not
> create Via header
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: ERROR: tm
> [t_fwd.c:476]: prepare_new_uac(): could not build request
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: ERROR: tm
> [t_fwd.c:1735]: t_forward_nonack(): failure to add branches
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: DEBUG: tm
> [t_funcs.c:334]: t_relay_to(): t_forward_nonack returned error -2 (-2)
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: DEBUG: tm
> [t_funcs.c:352]: t_relay_to(): -2 error reply generation delayed
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: ERROR: ***
> cfgtrace:request_route=[RELAY] c=[/etc/kamailio/kamailio.cfg] l=744 a=26
> n=xlog
> Feb 9 22:48:48 incfskamtest01 /usr/sbin/kamailio[14896]: ALERT:
> <script>: failed to rely !!! <sip:1001 at 192.0.2.110;transport=ws>
>
>
> is that because i set a $fu before t_relay() ?
>
>
> any idea how to approach the issue ?
>
>
>
>
>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - March 5-7, 2018, Berlin - www.asipto.com
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com
>
>
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