[Devel] Re: [Users] t_newtran in BYE
openser-devel at list.coretech.ro
openser-devel at list.coretech.ro
Fri Aug 4 20:38:05 CEST 2006
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:99903 at 192.168.0.102:5060 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:99904 at 192.168.0.102:27234>
To: <sip:my-sip-proxy.com>;tag=9735324217235
From: <sip:99904 at 192.168.2.1>;tag=4b196b44
Call-ID: 3DBD8C6C-410E-4232-B237-2F3BE7BF00F1 at 192.168.0.102
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:root@localhost/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:root@localhost/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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>>
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