[Serusers] Rtpproxy

Jan Janak jan at iptel.org
Tue Feb 24 13:34:43 CET 2004


You are calling force_rtp_proxy or fix_nated_sdp on a message with empty
body. Make sure that you call the functions from the script only when
the message contains SDP body (usually INVITE and 200 OK).
 
 Jan.

On 24-02 11:36, Shirley Toh wrote:
> Hi, 
> 
> Can anyone help me!! I am having this error on my log file when I try to
> make calls. I have attached my ser.cfg. Please help!! Thanks!!
> 
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20404]: ERROR:
> send_rtpp_command: can't read reply from a RTP proxy
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR: extract_body:
> message body has lenght zero
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR:
> force_rtp_proxy: can't extract body from the message
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR: on_reply
> processing failed
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR: extract_body:
> message body has lenght zero
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
> force_rtp_proxy: can't extract body from the message
> Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR: on_reply
> processing failed
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR: extract_body:
> message body has lenght zero
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
> force_rtp_proxy: can't extract body from the message
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR: on_reply
> processing failed
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR: extract_body:
> message body has lenght zero
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR: fix_nated_sdp:
> cannot extract body from msg!
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR: extract_body:
> message body has lenght zero
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
> force_rtp_proxy: can't extract body from the message
> Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR: on_reply
> processing failed
> 
>  <<ser.cfg.txt>> 
> 
> regards, 
> shirley
> 

> #
> # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $
> #
> # simple quick-start config script
> #
> 
> # ----------- global configuration parameters ------------------------
> 
> #debug=3         # debug level (cmd line: -dddddddddd)
> #fork=yes
> #log_stderror=no        # (cmd line: -E)
> 
> /* Uncomment these lines to enter debugging mode
> debug=7
> 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"
> mhomed=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/nathelper.so"
> loadmodule "/usr/local/lib/ser/modules/textops.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"
> 
> # 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)
> 
> # -- Nathelper --
> modparam("registrar" , "nat_flag", 6)
> modparam("nathelper", "natping_interval", 60)
> modparam("nathelper", "ping_nated_only", 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;
>         };
> 
> 
>         #!! Nathelper
>         if (nat_uac_test("3")){
>                 if (method == "REGISTER"){
>                         log("LOG:Someone trying to register from private IP, rewriting\n");
>                         fix_nated_contact(); # Rewtite contact with source IP of signalling
>                         if(method== "INVITE"){
>                                 fix_nated_sdp("1"); # Add direction-active to SDP
>                         };
>                         force_rport();
>                         setflag(6);
>                 };
>         };
> 
>         # 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") {
>                         save("location");
>                         break;
>                 };
> 
>                 # native SIP destinations are handled using our USRLOC DB
>                 if (!lookup("location")) {
>                         sl_send_reply("", "Connecting");
>                         break;
>                 };
>         };
>         if (isflagset(6)){
>                 force_rtp_proxy();
>         };
>         t_on_reply("1");
> 
>         # forward to current uri now; use stateful forwarding; that
>         # works reliably even if we forward from TCP to UDP
>         if (!t_relay()) {
>                 sl_reply_error();
>                 break;
>         };
> 
> }
> 
> # all incoming replies for t_onrepli-ed transactions enter here
> onreply_route[1] {
>         if (isflagset(6) && status=~"(183)|2[0-9][0-9]") {
>                 fix_nated_contact();
>                 fix_nated_sdp("1");
>                 force_rtp_proxy();
>         }else if(nat_uac_test("1")){
>                 fix_nated_contact();
>                 force_rtp_proxy();
>         };
> 
> }

> _______________________________________________
> Serusers mailing list
> serusers at lists.iptel.org
> http://lists.iptel.org/mailman/listinfo/serusers




More information about the sr-users mailing list