15 Jul
2004
15 Jul
'04
6:53 p.m.
Hi All,
I'm having to work with another SIP UAS acting as a location server, and
I have ser as my 'frontend' so all clients talk to ser, and ser will
register and with the location server.
In my logs I see the warning:
Jul 15 14:26:31 frig /usr/local/sbin/ser[18931]: WARNING: upstream bug -
0-terminated packet
This happens when I t_relay my REGISTERS to the 3rd party location
server. The packets look fine to me. Any ideas?
Here follows a trace (from ngrep), the logs from syslog, and our ser
configuration. I'm aware that the location server is not challenging on
REGISTERS :)
Thanks!
-Jev
U xx.xx.xx.181:64683 -> xx.xx.xx.6:5060
REGISTER sip:frontendser.example.com SIP/2.0.
Via: SIP/2.0/UDP 192.168.123.92;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@192.168.123.92>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-Agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 70.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
.
#
U xx.xx.xx.6:5060 -> xx.xx.xx.178:5060
REGISTER sip:location.example.com:5060 SIP/2.0.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP xx.xx.xx.6;branch=z9hG4bK168.c89ec35.0.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-Agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 69.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
#####
U xx.xx.xx.178:5060 -> xx.xx.xx.6:5060
SIP/2.0 200 OK.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP xx.xx.xx.6;branch=z9hG4bK168.c89ec35.0.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 68.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
.
##
U xx.xx.xx.6:5060 -> xx.xx.xx.181:64683
SIP/2.0 200 OK.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 68.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: ----------Entering
default route---------------
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: [REGISTER] from
[sip:88890000@frontendser.example.com] to
[sip:88890000@frontendser.example.com]
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: src address different
than via header->NAT detected
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: force_rport and
fix_nated_contact and setflag(5)
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: rewriting uri for
REGISTER request..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: Called
rewritehostport(location.example.com,5060) on REGSITER request..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: Called t_relay() for
register..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18931]: WARNING: upstream bug -
0-terminated packet
#
# $Id: ser_rtproxy_fe.cfg,v 1.3 2004/07/06 22:48:35 jev Exp $
#
# TODO
# Fix xlog statements to use appropriate logging levels.
#
# ----------- global configuration parameters ------------------------
debug=9 # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=no # (cmd line: -E)
/* Uncomment these lines to enter debugging mode
debug=9
fork=no
log_stderror=yes
*/
check_via=no # (cmd. line: -v)
dns=no # (cmd. line: -r)
rev_dns=no # (cmd. line: -R)
port=5060
#children=4
fifo="/tmp/ser_fifo"
sip_warning=yes
# ------------------ module loading ----------------------------------
# Uncomment this if you want to use SQL database
loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/domain.so"
loadmodule "/usr/local/lib/ser/modules/xlog.so"
loadmodule "/usr/local/lib/ser/modules/nathelper.so"
# Uncomment this if you want digest authentication
# mysql.so must be loaded !
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
# ----------------- setting module-specific parameters ---------------
# -- usrloc params --
modparam("usrloc", "db_mode", 0)
# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
#modparam("usrloc", "db_mode", 2)
# -- auth params --
# Uncomment if you are using auth module
#
#modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config),
# uncomment also the following parameter)
#
#modparam("auth_db", "password_column", "password")
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)
modparam("rr", "append_fromtag", 1)
modparam("registrar", "nat_flag", 6)
#modparam("nathelper", "natping_interval", 4) # Ping interval 30 s
modparam("nathelper", "natping_interval", 5) # Ping interval 30 s
# ------------------------- request routing logic -------------------
# main routing logic
route{
log(1, "----------Entering default route---------------\n");
xlog("L_ERR", "[%rm] from [%fu] to [%tu]");
if (nat_uac_test("2")) {
log(1, "src address different than via header->NAT detected\n");
log(1, "force_rport and fix_nated_contact and setflag(5)\n");
#try NAT traversal, works only if the client is symmetrical
force_rport();
fix_nated_contact();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for request\r\n");
# flag 5 indicates that incoming request is from NATed client
setflag(5);
};
# initial sanity checks -- messages with
# max_forwards==0, or excessively long requests
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
break;
};
if ( msg:len > max_len ) {
sl_send_reply("513", "Message too big");
break;
};
# we record-route all messages -- to make sure that
# subsequent messages will go through our proxy; that's
# particularly good if upstream and downstream entities
# use different transport protocol
record_route();
# loose-route processing
if (loose_route()) {
t_relay();
break;
};
# if the request is for other domain use UsrLoc
# (in case, it does not work, use the following command
# with proper names and addresses in it)
if (uri==myself) {
if (method=="REGISTER") {
log(1,"rewriting uri for REGISTER request..");
rewritehostport("location.example.com:5060");
if( isflagset(5) ){
force_rtp_proxy();
}
log(1,"Called rewritehostport(location.example.com,5060) on REGSITER
request..");
if(t_relay()){
log(1,"Called t_relay() for register..");
}
# if(!sl_send_reply("200", "ok")){
# log(1,"Got error when calling sl_send_reply(200, ok) on REGSITER
request..");
# }
t_on_reply("1");
break;
};
if (method=="INVITE" || method == "CANCEL") {
log(1,"rewriting uri for INVITE request..");
rewritehostport("location.example.com:5060");
log(1,"Called rewritehostport(location.example.com,5060) on INVITE
request..");
if(isflagset(5)){
force_rtp_proxy();
}
route(1);
#if(t_relay()){
# log(1,"Called t_relay() for register..");
# }
# if(!sl_send_reply("200", "ok")){
# log(1,"Got error when calling sl_send_reply(200, ok) on REGSITER
request..");
# }
t_on_reply("1");
break;
};
};
route(1);
}
route[1]{
log(1, "-------------------------------------------\n");
log(1, "entering route[1] - relaying SIP message\n");
if ((isflagset(5)) || (isflagset(6))) {
log(1, "at least one of the participants is NATed->record_route\n");
record_route();
log(1, " -->setting up reply processing ->onreply_route[1]");
t_on_reply("1");
if (method=="INVITE") {
log(1, "INVITE request-->force_rtp_proxy, set NATED-INVITE flag(7)");
force_rtp_proxy();
append_hf("P-hint: request forced to nathelper\r\n");
setflag(7);
};
};
log(1, "relaying message ...\n");
if (!t_relay()) {
log(1, "t_relay error occured\n");
sl_reply_error();
};
}
route[2]{
if ((isflagset(5)) || (isflagset(6))) {
log(1, "at least one of the participants is NATed->record_route\n");
record_route();
log(1, " -->setting up reply processing ->onreply_route[2]");
t_on_reply("1");
if (method=="INVITE") {
log(1, " INVITE request-->force_rtp_proxy, set NATED-INVITE
flag(7)");
force_rtp_proxy();
append_hf("P-hint: request forced to nathelper\r\n");
setflag(7);
};
};
xlog("L_ERR", "Forwarding %fu to %tu [Cisco]\n");
rewritehostport("xx.xx.xx.8:5060");
if(!t_relay()){
log(1, "Relay to Cisco failed");
break;
};
}
#all incoming replies for t_onrepli-ed transactions enter here
onreply_route[1] {
log(1, "-------------------------------------------\n");
log(1, "onreply_route[1] entered\n");
if (isflagset(5)) {
log(1, "transaction was sent to a NATED client -> fix nated contact\n");
fix_nated_contact();
force_rport();
force_rtp_proxy();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for response (nathelper)\r\n");
}
if ( (status=~"100") ) {
log(1, "status 100 received\n");
};
if ( (status=~"180") ) {
log(1, "status 180 received\n");
};
if ( (status=~"202") ) {
log(1, "status 202 received\n");
};
if ( (status=~"200" || status=~"183") ) {
log(1, "status 2xx or 183");
if ( isflagset(7) ) {
log(1, "marked(7) as NATED-INVITE -> force_rtp_proxy \n");
force_rtp_proxy();
append_hf("P-hint: response forced to nathelper\r\n");
};
};
}
onreply_route[2] {
log(1, "-------------------------------------------\n");
xlog("L_ERR", "onreply_route[2] entered From %fu to %tu\n");
if (isflagset(6)) {
log(1, "transaction was sent to a NATED client -> fix nated contact\n");
fix_nated_contact();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for response\r\n");
}
if ( (status=~"100") ) {
log(1, "status 100 received\n");
};
if ( (status=~"180") ) {
log(1, "status 180 received\n");
};
if ( (status=~"202") ) {
log(1, "status 202 received\n");
};
if ( (status=~"200" || status=~"183") ) {
log(1, "status 2xx or 183");
if ( isflagset(7) ) {
log(1, "marked(7) as NATED-INVITE -> force_rtp_proxy \n");
force_rtp_proxy();
append_hf("P-hint: response forced to nathelper\r\n");
};
};
}
15 Jul
15 Jul
7:25 p.m.
It is what it tells to be -- the received packet is broken in that it includes
a zero character in the end. We honor such request but issue a warning about
them. use "ngrep -x" to inspect the packet in hexcode.
-jiri
At 11:53 PM 7/15/2004, Jev wrote:
Hi All,
I'm having to work with another SIP UAS acting as a location server, and I have ser as
my 'frontend' so all clients talk to ser, and ser will register and with the
location server.
In my logs I see the warning:
Jul 15 14:26:31 frig /usr/local/sbin/ser[18931]: WARNING: upstream bug - 0-terminated
packet
This happens when I t_relay my REGISTERS to the 3rd party location server. The packets
look fine to me. Any ideas?
Here follows a trace (from ngrep), the logs from syslog, and our ser configuration.
I'm aware that the location server is not challenging on REGISTERS :)
Thanks!
-Jev
U xx.xx.xx.181:64683 -> xx.xx.xx.6:5060
REGISTER sip:frontendser.example.com SIP/2.0.
Via: SIP/2.0/UDP 192.168.123.92;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@192.168.123.92>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-Agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 70.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
.
#
U xx.xx.xx.6:5060 -> xx.xx.xx.178:5060
REGISTER sip:location.example.com:5060 SIP/2.0.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP xx.xx.xx.6;branch=z9hG4bK168.c89ec35.0.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-Agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 69.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
#####
U xx.xx.xx.178:5060 -> xx.xx.xx.6:5060
SIP/2.0 200 OK.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP xx.xx.xx.6;branch=z9hG4bK168.c89ec35.0.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 68.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
.
##
U xx.xx.xx.6:5060 -> xx.xx.xx.181:64683
SIP/2.0 200 OK.
Record-Route: <sip:xx.xx.xx.6;ftag=4c8855e01b806681;lr=on>.
Via: SIP/2.0/UDP
192.168.123.92;rport=64683;received=xx.xx.xx.181;branch=z9hG4bK0c95a85aa284e67a.
From: "Billy Pike"
<sip:88890000@frontendser.example.com>;tag=4c8855e01b806681.
To: <sip:88890000@frontendser.example.com>.
Contact: <sip:88890000@xx.xx.xx.181:64683>.
Call-ID: 0b3754db1b4dd80b(a)192.168.123.92.
CSeq: 100 REGISTER.
Expires: 3600.
User-agent: Grandstream BT100 1.0.4.55.
Max-Forwards: 68.
Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE.
Content-Length: 0.
P-hint: fixed NAT contact for request.
.
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: ----------Entering default
route---------------
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: [REGISTER] from
[sip:88890000@frontendser.example.com] to [sip:88890000@frontendser.example.com]
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: src address different than via
header->NAT detected
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: force_rport and fix_nated_contact and
setflag(5)
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: rewriting uri for REGISTER request..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: Called
rewritehostport(location.example.com,5060) on REGSITER request..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18904]: Called t_relay() for register..
Jul 15 14:26:31 frig /usr/local/sbin/ser[18931]: WARNING: upstream bug - 0-terminated
packet
#
# $Id: ser_rtproxy_fe.cfg,v 1.3 2004/07/06 22:48:35 jev Exp $
#
# TODO
# Fix xlog statements to use appropriate logging levels.
#
# ----------- global configuration parameters ------------------------
debug=9 # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=no # (cmd line: -E)
/* Uncomment these lines to enter debugging mode
debug=9
fork=no
log_stderror=yes
*/
check_via=no # (cmd. line: -v)
dns=no # (cmd. line: -r)
rev_dns=no # (cmd. line: -R)
port=5060
#children=4
fifo="/tmp/ser_fifo"
sip_warning=yes
# ------------------ module loading ----------------------------------
# Uncomment this if you want to use SQL database
loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/domain.so"
loadmodule "/usr/local/lib/ser/modules/xlog.so"
loadmodule "/usr/local/lib/ser/modules/nathelper.so"
# Uncomment this if you want digest authentication
# mysql.so must be loaded !
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
# ----------------- setting module-specific parameters ---------------
# -- usrloc params --
modparam("usrloc", "db_mode", 0)
# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
#modparam("usrloc", "db_mode", 2)
# -- auth params --
# Uncomment if you are using auth module
#
#modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config),
# uncomment also the following parameter)
#
#modparam("auth_db", "password_column", "password")
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)
modparam("rr", "append_fromtag", 1)
modparam("registrar", "nat_flag", 6)
#modparam("nathelper", "natping_interval", 4) # Ping interval 30 s
modparam("nathelper", "natping_interval", 5) # Ping interval 30 s
# ------------------------- request routing logic -------------------
# main routing logic
route{
log(1, "----------Entering default route---------------\n");
xlog("L_ERR", "[%rm] from [%fu] to [%tu]");
if (nat_uac_test("2")) {
log(1, "src address different than via header->NAT
detected\n");
log(1, "force_rport and fix_nated_contact and setflag(5)\n");
#try NAT traversal, works only if the client is symmetrical
force_rport();
fix_nated_contact();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for request\r\n");
# flag 5 indicates that incoming request is from NATed client
setflag(5);
};
# initial sanity checks -- messages with
# max_forwards==0, or excessively long requests
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
break;
};
if ( msg:len > max_len ) {
sl_send_reply("513", "Message too big");
break;
};
# we record-route all messages -- to make sure that
# subsequent messages will go through our proxy; that's
# particularly good if upstream and downstream entities
# use different transport protocol
record_route();
# loose-route processing
if (loose_route()) {
t_relay();
break;
};
# if the request is for other domain use UsrLoc
# (in case, it does not work, use the following command
# with proper names and addresses in it)
if (uri==myself) {
if (method=="REGISTER") {
log(1,"rewriting uri for REGISTER request..");
rewritehostport("location.example.com:5060");
if( isflagset(5) ){
force_rtp_proxy();
}
log(1,"Called rewritehostport(location.example.com,5060) on
REGSITER request..");
if(t_relay()){
log(1,"Called t_relay() for register..");
}
# if(!sl_send_reply("200", "ok")){
# log(1,"Got error when calling sl_send_reply(200, ok)
on REGSITER request..");
# }
t_on_reply("1");
break;
};
if (method=="INVITE" || method == "CANCEL") {
log(1,"rewriting uri for INVITE request..");
rewritehostport("location.example.com:5060");
log(1,"Called rewritehostport(location.example.com,5060) on
INVITE request..");
if(isflagset(5)){
force_rtp_proxy();
}
route(1);
#if(t_relay()){
# log(1,"Called t_relay() for register..");
# }
# if(!sl_send_reply("200", "ok")){
# log(1,"Got error when calling sl_send_reply(200, ok)
on REGSITER request..");
# }
t_on_reply("1");
break;
};
};
route(1);
}
route[1]{
log(1, "-------------------------------------------\n");
log(1, "entering route[1] - relaying SIP message\n");
if ((isflagset(5)) || (isflagset(6))) {
log(1, "at least one of the participants is
NATed->record_route\n");
record_route();
log(1, " -->setting up reply processing
->onreply_route[1]");
t_on_reply("1");
if (method=="INVITE") {
log(1, "INVITE request-->force_rtp_proxy, set NATED-INVITE
flag(7)");
force_rtp_proxy();
append_hf("P-hint: request forced to nathelper\r\n");
setflag(7);
};
};
log(1, "relaying message ...\n");
if (!t_relay()) {
log(1, "t_relay error occured\n");
sl_reply_error();
};
}
route[2]{
if ((isflagset(5)) || (isflagset(6))) {
log(1, "at least one of the participants is
NATed->record_route\n");
record_route();
log(1, " -->setting up reply processing
->onreply_route[2]");
t_on_reply("1");
if (method=="INVITE") {
log(1, " INVITE request-->force_rtp_proxy, set
NATED-INVITE flag(7)");
force_rtp_proxy();
append_hf("P-hint: request forced to nathelper\r\n");
setflag(7);
};
};
xlog("L_ERR", "Forwarding %fu to %tu [Cisco]\n");
rewritehostport("xx.xx.xx.8:5060");
if(!t_relay()){
log(1, "Relay to Cisco failed");
break;
};
}
#all incoming replies for t_onrepli-ed transactions enter here
onreply_route[1] {
log(1, "-------------------------------------------\n");
log(1, "onreply_route[1] entered\n");
if (isflagset(5)) {
log(1, "transaction was sent to a NATED client -> fix nated
contact\n");
fix_nated_contact();
force_rport();
force_rtp_proxy();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for response
(nathelper)\r\n");
}
if ( (status=~"100") ) {
log(1, "status 100 received\n");
};
if ( (status=~"180") ) {
log(1, "status 180 received\n");
};
if ( (status=~"202") ) {
log(1, "status 202 received\n");
};
if ( (status=~"200" || status=~"183") ) {
log(1, "status 2xx or 183");
if ( isflagset(7) ) {
log(1, "marked(7) as NATED-INVITE -> force_rtp_proxy \n");
force_rtp_proxy();
append_hf("P-hint: response forced to nathelper\r\n");
};
};
}
onreply_route[2] {
log(1, "-------------------------------------------\n");
xlog("L_ERR", "onreply_route[2] entered From %fu to %tu\n");
if (isflagset(6)) {
log(1, "transaction was sent to a NATED client -> fix nated
contact\n");
fix_nated_contact();
#fix_nated_sdp();
append_hf("P-hint: fixed NAT contact for response\r\n");
}
if ( (status=~"100") ) {
log(1, "status 100 received\n");
};
if ( (status=~"180") ) {
log(1, "status 180 received\n");
};
if ( (status=~"202") ) {
log(1, "status 202 received\n");
};
if ( (status=~"200" || status=~"183") ) {
log(1, "status 2xx or 183");
if ( isflagset(7) ) {
log(1, "marked(7) as NATED-INVITE -> force_rtp_proxy \n");
force_rtp_proxy();
append_hf("P-hint: response forced to nathelper\r\n");
};
};
}
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--
Jiri Kuthan http://iptel.org/~jiri/
7:46 p.m.
Thanks Jiri,
For my edification, which standard is this actually violating? RFC3261
or other?
Thanks again,
-Jev
Jiri Kuthan wrote:
It is what it tells to be -- the received packet is
broken in that it includes
a zero character in the end. We honor such request but issue a warning about
them. use "ngrep -x" to inspect the packet in hexcode.
-jiri
[snip]
16 Jul
16 Jul
12:23 p.m.
On Jul 15, 2004 at 15:46, Jev <jev(a)ecad.org> wrote:
Thanks Jiri,
For my edification, which standard is this actually violating? RFC3261
or other?
Yes, RFC3261. The messages are supposed to contain only ASCII and \0 is
not ASCII. Probably the Content-Length is also wrong.
Andrei
7368
days inactive
7369
days old
3 comments
3 participants
participants (3)
-
Andrei Pelinescu-Onciul -
Jev -
Jiri Kuthan