[Serusers] ser route config problem need help

[jimmy way]

Pls help me to config ser.cfg
Now my envirmonet is:
ser server: 172.16.255.1:5060 ( without DNS server )
SIP PSTN gateway: 172.16.255.1:6050
SIP UA: 172.16.2.xx
And all SIP UAs have a PSTN number like 6169xxxx

There are no DNS server in the system.(we don't apply
for a domain name)
I want:
1 All users use digest authorization when SIP UA
registing ------ finished
2 All calls from SIP UA need authorization (return 407
to Invite request)
3 All calls to PSTN transfer to the SIP PSTN
gateway(number no like "6169xxxx")    -------- almost
finished
3 All calls from the SIP PSTN gateway do not need
authorization(I think use a caller
sip:gateway at 172.16.255.1:6050 as caller when call from
gateway,then all call from this user and this ip
address needn't authorazation) 
4 All calls need write CDR record to mysq datebase
The bigest problem is I don't know how to write
conditonal sentence , like
if(uri!=~"xxxx")
or
if((uri=="xxxx") | (uri=="yyyy"))
There are no document talking about the syntax.


Please help me. Any help is appreciate.

Now my ser.cfg is:


#
# $Id: ser.cfg,v 1.21.2.1 2003/07/30 16:46:18 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
*/

debug=7
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"

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

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

loadmodule "/usr/lib/ser/modules/sl.so"
loadmodule "/usr/lib/ser/modules/tm.so"
loadmodule "/usr/lib/ser/modules/rr.so"
loadmodule "/usr/lib/ser/modules/maxfwd.so"
loadmodule "/usr/lib/ser/modules/usrloc.so"
loadmodule "/usr/lib/ser/modules/registrar.so"

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

# -------------------------  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 (len_gt( max_len )) {
sl_send_reply("513", "Message too big");
break;
};

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

save("location");
break;
};

# native SIP destinations are handled using our USRLOC
DB
# if (!lookup("location")) {
# if(uri=~"^sip:6169*@") {
# forward(172.16.255.1,6050);
# break;
# };
# else {
# sl_send_reply("404", "Not Found");
# break;
# };
# };

if(uri=~"^sip:6169[0-9]*@[0-9|\.]*") {
if(!lookup("location")) {
sl_send_reply("404", "Not Found");
break;
};
};

if(!lookup("location")) {
forward(172.16.255.1,6050);
break;
};
};
# 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();
};

}



Best regards

wangji 

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