hello,

I have the same problem but in different scenario, I do not know if they are related.

I use the uac module.
the problem manifests only with retransmissions, and only if the "from" header was rewritten.
from what I can see it appears with any sip message, not just BYE

I have included a small scenario, maybe it helps, or maybe I misuse the uac module.

thanks,
Razvan Radu


openser-1.1.0-notls from source

===openser.cfg===
debug=2
fork=yes
log_stderror=no
log_facility=LOG_LOCAL5

port=5060
children=8
listen=192.168.2.1

mpath="/usr/local/lib/openser/modules"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"
loadmodule "uac.so"

alias="192.168.2.1"

route {
       loose_route();
       log(1, "T_RELAY EXEC\n");
       if(!t_relay()) {
               log(1, "T_RELAY EXECUTION FAILED\n");
               sl_reply_error();
       }
       exit;
}
===openser.cfg===

===sip-msg===
BYE sip:[EMAIL PROTECTED]:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.102:27234;branch=z9hG4bK-d87543-d62bf124e540b40a-1--d87543-;rport
Max-Forwards: 70
Route: <sip:192.168.2.1;lr;ftag=9735324217235;vsf=Y3NzYyklKCYzVCs+MjVsNiQwU11C>
Contact: <sip:[EMAIL PROTECTED]:27234>
To: <sip:my-sip-proxy.com>;tag=9735324217235
From: <sip:[EMAIL PROTECTED]>;tag=4b196b44
Call-ID: [EMAIL PROTECTED]
CSeq: 2 BYE
User-Agent: X-Lite release 1003l stamp 30942
Reason: SIP;description="User Hung Up"
Content-Length: 0

===sip-msg===

===simulate===
twice in less than 15secs
cat sip-msg | nc -u -w 1 192.168.2.1 5060
===simulate===

===logs===
21:38:46 /usr/local/sbin/openser[20789]: T_RELAY EXEC
21:38:50 /usr/local/sbin/openser[20785]: T_RELAY EXEC
21:38:50 /usr/local/sbin/openser[20785]: ERROR: t_newtran: transaction already in process 0x2aaaab42a790
21:38:50 /usr/local/sbin/openser[20785]: T_RELAY EXECUTION FAILED
===logs===



Bogdan-Andrei Iancu wrote:
Hi,

most probably it is a script error - the message you get says that the transaction for the BYE is created more than once. Script functions that create transactions are: t_newtran, t_relay.

probably you have more than one t_relay...?!

regards,
bogdan

Kapil Dhawan wrote:

With evey Bye i am receiving t_newtran
ERROR: t_newtran: transaction already in process
DEBUG:sl:sl_reply_error: error text is I'm terribly sorry, server error occurred (1/SL)

#
# $Id: openser.cfg,v 1.6 2006/02/15 18:23:46 bogdan_iancu Exp $
#
# simple quick-start config script
#

# ----------- global configuration parameters ------------------------

debug=8            # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=yes    # (cmd line: -E)

/* Uncomment these lines to enter debugging mode
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/openser_fifo"
fifo_db_url="mysql://root:[EMAIL PROTECTED]/openser"

#
# uncomment the following lines for TLS support
#disable_tls = 0
#listen = tls:your_IP:5061
#tls_verify = 1
#tls_require_certificate = 0
#tls_method = TLSv1
#tls_certificate = "/usr/local/etc/openser/tls/user/user-cert.pem"
#tls_private_key = "/usr/local/etc/openser/tls/user/user-privkey.pem"
#tls_ca_list = "/usr/local/etc/openser/tls/user/user-calist.pem"

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database
loadmodule "/usr/local/lib/openser/modules/mysql.so"

loadmodule "/usr/local/lib/openser/modules/sl.so"
loadmodule "/usr/local/lib/openser/modules/tm.so"
loadmodule "/usr/local/lib/openser/modules/rr.so"
loadmodule "/usr/local/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/lib/openser/modules/registrar.so"
loadmodule "/usr/local/lib/openser/modules/textops.so"

# Uncomment this if you want digest authentication
# mysql.so must be loaded !
loadmodule "/usr/local/lib/openser/modules/auth.so"
loadmodule "/usr/local/lib/openser/modules/auth_db.so"

# !! Accounting
loadmodule "/usr/local/lib/openser/modules/acc.so"

# !! Nathelper
loadmodule "/usr/local/lib/openser/modules/nathelper.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)

# -- acc params --
# set the reporting log level
modparam("acc", "log_level", 3)
# number of flag, which will be used for accounting; if a message is
# labeled with this flag, its completion status will be reported
modparam("acc", "log_flag", 1)
modparam("acc", "log_missed_flag", 2)
modparam("acc", "failed_transaction_flag", 1)
modparam("acc", "report_cancels", 1)
modparam("acc", "db_url", "mysql://root:[EMAIL PROTECTED]/openser")
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 2)

# !! Nathelper
# -- nathelper params --
modparam("registrar", "nat_flag", 6)
modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind NAT

# -------------------------  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");
               exit;
       };

       if (msg:len >=  2048 ) {
               sl_send_reply("513", "Message too big");
               exit;
       };


       # !! Nathelper
       # Special handling for NATed clients; first, NAT test is
       # executed: it looks for via!=received and RFC1918 addresses
       # in Contact (may fail if line-folding is used); also,
       # the received test should, if completed, should check all
       # vias for presence of received
       if (nat_uac_test("3")) {
               # Allow RR-ed requests, as these may indicate that
               # a NAT-enabled proxy takes care of it; unless it is
               # a REGISTER

               if (method == "REGISTER" || ! search("^Record-Route:")) {
log("LOG: Someone trying to register from private IP, rewriting\n");

# This will work only for user agents that support symmetric # communication. We tested quite many of them and majority is # smart enough to be symmetric. In some phones it takes a configuration # option. With Cisco 7960, it is called NAT_Enable=Yes, with kphone it is # called "symmetric media" and "symmetric signalling".

fix_nated_contact(); # Rewrite contact with source IP of signalling
                   if (method == "INVITE") {
                       fix_nated_sdp("1"); # Add direction=active to SDP
                   };
                   force_rport(); # Add rport parameter to topmost Via
                   setflag(6);    # Mark as NATed
               };
       };

       # labeled all transaction for accounting
#        setflag(1);
#        setflag(2);
       # 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
       if (!method=="REGISTER")
               record_route();

       # subsequent messages withing a dialog should take the
       # path determined by record-routing
       if (loose_route()) {
               # mark routing logic in request
               append_hf("P-hint: rr-enforced\r\n");
               route(1);
       };

       if (!uri==myself) {
               # mark routing logic in request
               append_hf("P-hint: outbound\r\n");
               # if you have some interdomain connections via TLS
               #if(uri=~"@tls_domain1.net") {
               #       t_relay("tls:domain1.net");
               #       exit;
               #} else if(uri=~"@tls_domain2.net") {
               #       t_relay("tls:domain2.net");
               #       exit;
               #}
               route(1);
       };
       # 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") {

# Uncomment this if you want to use digest authentication
                       if (!www_authorize("", "subscriber")) {
                               www_challenge("", "0");
                               exit;
                       };

                       save("location");
                       exit;
               };

               lookup("aliases");
               if (!uri==myself) {
                       append_hf("P-hint: outbound alias\r\n");
                       route(1);
               };

               # native SIP destinations are handled using our USRLOC DB
               if (!lookup("location")) {
                       rewriteport("5065");
                       route(1);
#                       sl_send_reply("404", "Not Found");
                       exit;
               };
               append_hf("P-hint: usrloc applied\r\n");
       };
       t_on_failure("2");
       route(1);
}
route[1]
{
       # !! Nathelper
if (uri=~"[@:](192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)" && !search("^Route:")){ sl_send_reply("479", "We don't forward to private IP addresses");
           return;
       };

       # if client or server know to be behind a NAT, enable relay
       if (isflagset(6)) {
           force_rtp_proxy();
       };

# NAT processing of replies; apply to all transactions (for example,
       # re-INVITEs from public to private UA are hard to identify as
       # NATed at the moment of request processing); look at replies
       t_on_reply("1");

       # send it out now; use stateful forwarding as it works reliably
       # even for UDP2TCP
       if (!t_relay()) {
               sl_reply_error();
       };
}

failure_route[2] {
       t_on_reply("1");
       append_branch();
       t_relay("udp:x.y.z.w:5065");
       exit;
}

# !! Nathelper
onreply_route[1] {
   # NATed transaction ?
   if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
       fix_nated_contact();
       force_rtp_proxy();
   # otherwise, is it a transaction behind a NAT and we did not
   # know at time of request processing ? (RFC1918 contacts)
   } else if (nat_uac_test("1")) {
       fix_nated_contact();
   };
}

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