Sounds reasonable for Kamailio.
For clients it would be nice to detect the websocket URL automatically
from DNS. I see that draft-ietf-sipcore-sip-websocket-09 include some
text for NAPTR and SRV, but I think this is not usefull, as the SRV only
provides host and port, but the WS URL may be complexer (e.g. contain a
path)
regards
klaus
On 02.10.2013 13:33, Peter Dunkley wrote:
WebSocket's is an asynchronous protocol. The current Kamailio
implementation is the server-side only.
Because of the asynchronous nature of WebSockets, plus some other
limitations imposed by the transport, it wouldn't really make sense for
Kamailio to contain a WebSocket client (in my opinion anyway - it adds
complexity and "breaks" things without giving any benefit over
TCP/TLS/SCTP between servers).
On 2 October 2013 12:27, Klaus Darilion <[email protected]
<mailto:[email protected]>> wrote:
E.g. when connection from one Kamailio to another Kamailio via
Websockets.
klaus
On 02.10.2013 13:27, Klaus Darilion wrote:
Isn't NAPTR/SRV lookups specified for websockets?
On 01.10.2013 23:18, Daniel-Constantin Mierla wrote:
Module: sip-router
Branch: master
Commit: 1c74725dc14fc40d9b553950e21224__1821351878
URL:
http://git.sip-router.org/cgi-__bin/gitweb.cgi/sip-router/?a=__commit;h=__1c74725dc14fc40d9b553950e21224__1821351878
<http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=1c74725dc14fc40d9b553950e212241821351878>
Author: Daniel-Constantin Mierla <[email protected]
<mailto:[email protected]>>
Committer: Daniel-Constantin Mierla <[email protected]
<mailto:[email protected]>>
Date: Tue Oct 1 23:18:07 2013 +0200
core: don't attempt srv lookup for proto ws or wss
---
dns_cache.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/dns_cache.c b/dns_cache.c
index 917b43e..2d7278c 100644
--- a/dns_cache.c
+++ b/dns_cache.c
@@ -2670,6 +2670,10 @@ struct hostent*
dns_srv_sip_resolvehost(str*
name, unsigned short* port,
}else{
srv_proto=PROTO_UDP;
}
+ if(srv_proto==PROTO_WS || srv_proto==PROTO_WS) {
+ /* no srv records for web sockets */
+ return 0;
+ }
/* try SRV if no port specified
(draft-ietf-sip-srv-06) */
if ((port)&&(*port==0)){
*port=(srv_proto==PROTO_TLS)?__SIPS_PORT:SIP_PORT; /* just in
case we
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--
Peter Dunkley
Technical Director
Crocodile RCS Ltd
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