21 Dec
2006
21 Dec
'06
11:37 a.m.
I'm sorry for the delay, but we had to do a deliverable in this date, and it was
imposible to answer before.
Could you try again after runing:
ulimit -c unlimited # you need bash for this
ser -f ser.cfg -w /tmp/
The parameter "unlimited" already was in this
node, so I think this is not the problem.
The scenario used in our test is the following:
-
There are two user terminals that are communicated by SIP Communicator
program. The INVITE message (problematic paquet) travels through the
nodes until it arrive at the Proxy node. In this node is the problem
with the core shown in my previous message. We have MIPv6 in our
scenario. In our case, we use mipv6-2.0.2 from http://www.mobile-ipv6.org/ . We have
ubuntu with kernel 2.6.16.24
Next, i'll show you the configuration file in the Proxy node:
******************************************************************
#
# P-CSCF
#
# ----------- global configuration parameters ------------------------
check_via=no # (cmd. line: -v)
dns=yes # (cmd. line: -r)
rev_dns=yes # (cmd. line: -R)
fifo="/tmp/ser_fifo"
listen="pcscf"
# ------------------ module loading ----------------------------------
loadmodule "/usr/lib/ser/modules/sl.so"
loadmodule "/usr/lib/ser/modules/tm.so"
loadmodule "/usr/lib/ser/modules/rr.so"
loadmodule "/usr/lib/ser/modules/maxfwd.so"
loadmodule
"/usr/lib/ser/modules/textops.so"
loadmodule
"/usr/lib/ser/modules/xlog.so"
# ----------------- setting module-specific parameters ---------------
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)
# ------------------------- request routing logic -------------------
# main routing logic
route{
# 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;
};
if (method=="REGISTER") {
# Append the Path header
# FIXME: "Require" and "Supported" issues
append_hf("Path:
<sip:term@pcscf.domainA.ammi.dit.upm.es;lr>\r\n");
append_hf("Require: path\r\n");
};
# -----------------------------------------------------------------
# Loose Route Section
# -----------------------------------------------------------------
if (method != "REGISTER") {
record_route();
};
if (loose_route()) {
route(1);
break;
};
# forward to current uri
now; use stateful forwarding; that
# works reliably even if we forward from TCP to UDP
route(1);
}
route[1] {
# -----------------------------------------------------------------
# Default Message Handler
# -----------------------------------------------------------------
if (!t_relay()) {
sl_reply_error();
};
}
****************************************************************
In the next message i'll show the packet INVITE that produces the error becuase.
Otherwise, the message would be very big (>40 KB) and it would not be shown.
Thanks.
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