From vasiliy.ganchev@wildix.com Tue Nov 10 16:26:54 2015
From: Vasiliy Ganchev <vasiliy.ganchev@wildix.com>
To: sr-users@lists.kamailio.org
Subject: [SR-Users] issue with uac_req_send to websocket peer
Date: Tue, 10 Nov 2015 08:26:49 -0700
Message-ID: <1447169209974-142954.post@n5.nabble.com>
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Hi folk!

Have a scenario:

UA-A -> REGISTER -> kamailio
kamailio make auth, and save(location),=20
after this, before exit, I want to send to UA-A a custom NOTIFY with
specific event
(this should be done without SUBSCRIBE/PUBLISH/NOTIFY logic)

....
	$uac_req(method) =3D "NOTIFY";
	$uac_req(ruri) =3D $sel(contact.uri);
	$uac_req(furi) =3D "sip:service@" + $rd;
	$uac_req(turi) =3D $sel(contact.uri);
	$uac_req(hdrs) =3D ......... here custom header is added
	xlog("L_ERR", "debuginfo, NOTIFY to  ru $uac_req(ruri), fu $uac_req(furi);

	uac_req_send();
............

when UA-A is connected via UDP/TCP/TLS - works OK
when UA-A connected via WS/WSS", have errors:

Nov 10 14:59:29 /usr/sbin/kamailio[6260]: ERROR: <script>: debuginfo, NOTIFY
to  ru sip:251(a)10.100.1.218:47114;transport=3Dws, fu sip:service(a)10.100.1=
.85,=20
Nov 10 14:59:29 /usr/sbin/kamailio[6260]: WARNING: <core>
[msg_translator.c:2799]: via_builder(): TCP/TLS connection (id: 0) for
WebSocket could not be found
Nov 10 14:59:29 /usr/sbin/kamailio[6260]: ERROR: tm [t_msgbuilder.c:1365]:
assemble_via(): assemble_via: via building failed
Nov 10 14:59:29 /usr/sbin/kamailio[6260]: ERROR: tm [t_msgbuilder.c:1545]:
build_uac_req(): build_uac_req(): Error while assembling Via
Nov 10 14:59:29 /usr/sbin/kamailio[6260]: ERROR: tm [uac.c:379]:
t_uac_prepare(): t_uac: Error while building message

I see no problem with ws connect (calls to/from this ws peer works OK),
immediately after registration:
root(a)local:/home/admin# kamctl fifo ws.dump
2: wss:127.0.0.1:40239 -> wss:127.0.0.1:5061 (state: OPEN,  last used 5s
ago, sub-protocol: sip)

The difference in UDP/TCP/TLS from WS/WSS - that first connects directly to
Kamailio to port 5060/5061, but second connects to custom ports, where
listen special daemon and proxy sip to kamailio 5060/5061 via localhost

I tried also to add in script
	$uac_req(sock) =3D "tls:127.0.0.1:5061";

but the result is the same

version: kamailio 4.2.5 (i386/linux)

any suggestion?

cheers



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