9 Oct
2009
9 Oct
'09
2:11 a.m.
On Thursday 08 October 2009 22:54:24 CSB wrote:
CANCEL sip:031234567@domain.com SIP/2.0
Record-Route: <sip:147.202.001.001;lr=on;ftag=as02736614>
Record-Route: <sip:147.202.001.002;lr=on;ftag=as02736614>
Record-Route: <sip:147.202.001.001;lr=on;ftag=as02736614>
Record-Route: <sip:147.202.001.001;lr=on;ftag=as02736614>
Record-Route: <sip:147.202.001.001;lr=on;ftag=as02736614>
[...]
It's obvious that you are looping over yourself. Look more about this
inline ...
I have pasted what I think are the relevant parts from
the config file.
Could anyone advise where the problem might be?
route {
# -----------------------------------------------------------------
### SipTrace.
# -----------------------------------------------------------------
if ! is_method("OPTIONS|SUBSCRIBE|NOTIFY") {
sip_trace();
setflag(28);
}
# -----------------------------------------------------------------
# Sanity Check Section
# -----------------------------------------------------------------
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483", "Too Many Hops");
return;
};
if (msg:len > max_len) {
sl_send_reply("513", "Message Overflow");
return;
};
# -----------------------------------------------------------------
# Record Route Section
# -----------------------------------------------------------------
#If it's an INVITE & client is NATed,
#xlog("welcome");
if (method=="INVITE" && client_nat_test("3")) {
#Record-route and specify the record-route header
explicitly record_route_preset("147.202.001.001:5060;nat=yes"); # insert IP
address
^^^^^^^ This is one of your biggest errors.
1º - Don't add that IP manualy, let the record_route function to decide witch
IP it's should add.
2º - You are adding a record-route header TO EVERY INVITE you receive, no
matter if a "first one" in a dialog or a reinvite, or a retrasmition, or ...
so you will allways end with a loop.
xlog("invite and nated so
record_route_preset");
#If not Nated and not REGISTER then normal record-route
} else if (method!="REGISTER") {
record_route();
xlog("not register and not nated so record_route");
};
# -----------------------------------------------------------------
# Call Tear Down Section
# -----------------------------------------------------------------
if (method=="BYE" || method=="CANCEL") {
setflag(1);
#call end_media_session in case we're proxying media
end_media_session();
^^^^^ So .. directly .. without
checking anything more ... close
mediasessions ... you are brave !!! ;-)
};
# -----------------------------------------------------------------
# Loose Route Section
# -----------------------------------------------------------------
if (loose_route()) {
#Ensure we are dealing with a re-INVITE. Only connected
calls have tag=
#entry in the To header. So if it's loose routed and
doesn't have totag
#and it's an invite or reply then something's wrong
xlog("loose_route");
if ((method=="INVITE" || method=="REFER") &&
!has_totag())
{
sl_send_reply("403", "Forbidden");
xlog("403 in lr");
return;
};
if (method=="INVITE") {
if (!allow_trusted()) {
xlog("!allow_ trusted for r-uri <$ru>");
if
(!proxy_authorize("","subscriber")) {
proxy_challenge("domain.com","1");
return;
} else if (!check_from()) {
sl_send_reply("403", "Use
From=ID"); return;
};
consume_credentials();
};
#check client is nated or that we've already
identified it's nated
xlog("Re-invite. rs $rs si $si rm $rm ru $ru tu $tu
fu $fu fd $fd rr $rr");
if (client_nat_test("3") ||
search("^Route:.*;nat=yes")) {
setbflag(6);
xlog("Recipient is nated so setbflag 6 and
use mediaproxy: r-uri <$ru>");
use_media_proxy();
^^^^^^^ So for re-invites you take into account to do mediaproxy
handling ... but not for first-time INVITE's ... quite extrange ... ;-)
};
};
route(1);
return;
};
# -----------------------------------------------------------------
# Call Type Processing Section
# -----------------------------------------------------------------
# Processes out-of-dialogue messages i.e.
# 1. new dialogue
# 2. message not destined for us (but we are relaying or proxying)
xlog("Call Type Processing Section");
if (!is_uri_host_local()) {
xlog("!is_uri_host_local");
if (is_from_local() || allow_trusted() ) {
xlog("is_from_local() || allow_trusted()");
route(5);
route(1);
} else {
sl_send_reply("403", "Forbidden");
xlog("403 in call type processing. rs $rs si $si rm
$rm ru $ru tu $tu fu $fu fd $fd rr $rr");
};
return;
};
sip_trace();
if (method=="ACK") {
route(1);
return;
} else if (method=="CANCEL") {
route(1);
^^^^^ Uff ... another point to having
problems ... look ahead.
return;
} else if (method=="INVITE") {
route(3);
return;
} else if (method=="REGISTER") {
route(2);
return;
} else if (method=="SUBSCRIBE") {
route(7);
return;
};
route[1] {
# -----------------------------------------------------------------
# Default Message Handler
# -----------------------------------------------------------------
xlog("hit route(1). rs $rs si $si rm $rm ru $ru tu $tu fu $fu rr
$rr");
#Call reply_route(1) to intercept response messages heading to the
client
t_on_reply("1");
#Try to relay the message to its destination
if (!t_relay()) {
#If it can't and it's an INVITE or ACK end the media
proxying
log(1,"route[1] !t_relay");
if (method=="INVITE" || method=="ACK") {
end_media_session();
^^^^^^ For and ACK ?? .. sure ??? .. ACK will never arrive here, also
INVITE should never arrive here, because you are sending them to route 3 from
the main route block.
};
sl_reply_error();
} else {
log(1,"route[1] t_relay");
};
^^^^^ So you route CANCEL to route(1) ... but you don't test if that
CANCEL belongs to an stablished NATED dialog and close mediaproxy session ...
}
onreply_route[1]
#Handles message that are returned to the sender i.e. response to caller's
original request
{
xlog("hit onreply_route(1). rs $rs si $si rm $rm ru $ru tu $tu fu
$fu rr $rr");
if (isbflagset(6)) {
xlog("flag(6) is set for $fu . We're currently in
onreply_route(1)");
^^^^^^ So a reply to a NATED Request and
you don't do
anything ... quite good ...
};
if (isbflagset(7)) {
xlog("flag(7) is set for $fu . We're currently in
onreply_route(1)");
};
if
(status=~"(180)|(183)|2[0-9][0-9]") {
xlog("status matches for $fu . We're currently in
onreply_route(1)");
};
if ((isbflagset(6) || isbflagset(7)) &&
(status=~"(180)|(183)|2[0-9][0-9]")) {
#Check the SDP payload length. Assume if we have something
we can call mediaproxy
if (!search("^Content-Length:[ ]*0")) {
log(1,"using media proxy in onreply_route(1)");
use_media_proxy();
};
};
if (client_nat_test("1")) {
fix_nated_contact();
};
^^^^^ This route-block it's a complete mess ..
}
Any advice appreciated.
I advice you that your confing should be rewritten, almost from scracht ...
take a look at the doc examples, because you are doing things at wild west
way ..
--
Raúl Alexis Betancor Santana
Dimensión Virtual