[Serusers] nat_uac_test - sr-users

29 Jun 2004

    Shown below is my ser.cfg file. For some reason the nat_uac_test routine doesn't
work. The debugging says it doesn't know the command and believes I left out a module.
I can't find much documentation on this command. Did I leave out a module or something
required to use this?

    Bill


#
# $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"
fifo_mode=0666

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

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

loadmodule "/lib/ser/modules/sl.so"
loadmodule "/lib/ser/modules/tm.so"
loadmodule "/lib/ser/modules/maxfwd.so"
loadmodule "/lib/ser/modules/registrar.so"
loadmodule "/lib/ser/modules/auth.so"
# loadmodule "/lib/ser/modules/textops.so"
# loadmodule "/lib/ser/modules/enum.so"
loadmodule "/lib/ser/modules/group.so"

loadmodule "/lib/ser/modules/nathelper.so"
modparam("nathelper", "natping_interval", 10)

# loadmodule "/lib/ser/modules/vm.so"
# modparam("vm", "db_url", "sql://root:@127.0.0.1/ser")
# modparam("vm", "email_column", &quot;sip(a)xxx.xxx.net&quot;)
# modparam("vm", "domain_column", "ser.vci.net")

loadmodule "/lib/ser/modules/acc.so"
modparam("acc", "db_url", "sql://root:@127.0.0.1/ser")
modparam("acc", "log_missed_flag", 2)
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "db_flag", 2)
modparam("acc", "db_missed_flag", 2)

loadmodule "/lib/ser/modules/usrloc.so"
modparam("usrloc", "db_mode",   0)
modparam("usrloc", "db_mode", 2)

loadmodule "/lib/ser/modules/auth_db.so"
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")

loadmodule "/lib/ser/modules/rr.so"
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 (nat_uac_test("3")) {
                log("1,Connection from someone behind a NAT");
        };

        if (uri =~ "^sip:admin" ) {
              log(1, "Connection from admin(a)xxx.xxx.net&quot;)uot;);
        };

        if (method=="CANCEL") {
                log(1,"Sent CANCEL request");
        }

        if (method=="INVITE") {
                log(1,"Sent INVITE request");
        }

        # 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;
        };

        setflag(2);

        # 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) {
                log(1,"processing request for ser.vci.net domain");

                if (method=="REGISTER") {
                        log(1,"register request for xxx.xxx.net domain");
                        if (!www_authorize("xxx.xxx.net",
"subscriber")) {
                                www_challenge("ser.vci.net", "0");
                                break;
                        };

                        save("location");
                        break;
                };

                # native SIP destinations are handled using our USRLOC DB
                if (!lookup("location")) {
                        log(1,"404 - Not Found");
                        acc_db_request("404 Not Found", "acc");
                        sl_send_reply("404", "Not Found");
                        break;
                };
        };
        # forward to current uri now; use stateful forwarding; that
        # works reliably even if we forward from TCP to UDP
        if (!t_relay()) {
                log(1,"not sure what this does");
                sl_reply_error();
        };

}