[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();
> };
>
> }
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