[Serusers] SUBSCRIBE From MSN

giAndrea news at giandrea.com
Wed Jul 7 16:23:54 CEST 2004


Hi

i've a problem with MSN. When I try to subscribe my user with MSN 
(4.7.2009) ser doesn't autorizie me, but when I try with kphone and the 
same user, it works correctly. In fact I can see on contact table the row 
of my user.

I have exported SIP_DOMAIN=sip.quellidelpirana.it

I think that the condition if (uri==myself) doesn't match my IP address.

any idea??

this is my ser.cfg.


###############################################
# $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
fork=yes
log_stderror=no
check_via=no
dns=no
rev_dns=no
port=5060
children=4
fifo="/tmp/ser_fifo"


alias=217.57.90.117
alias=sip.quellidelpirana.it
alias=webby.spidlink.com

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


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"
loadmodule "/usr/lib/ser/modules/auth.so"
loadmodule "/usr/lib/ser/modules/auth_db.so"
loadmodule "/usr/lib/ser/modules/acc.so"
loadmodule "/usr/lib/ser/modules/exec.so"
loadmodule "/usr/lib/ser/modules/group.so"
loadmodule "/usr/lib/ser/modules/textops.so"
loadmodule "/usr/lib/ser/modules/nathelper.so"
loadmodule "/usr/lib/ser/modules/xlog.so"

# ----------------- setting module-specific parameters ---------------


# -- registrar params --
# modparam("registrar", "use_domain", 1)


# -- usrloc params --
modparam("usrloc", "db_url", "mysql://ser:heslo@localhost/ser")
modparam("usrloc", "db_mode",   2)


# -- auth params --
# Uncomment if you are using auth module
#
modparam("auth_db", "db_url", "mysql://ser:heslo@localhost/ser")
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")


# -- tm modules ---
modparam("tm", "fr_inv_timer", 15 )


#-- acc params --
modparam("acc","db_url", "mysql://ser:heslo@localhost/ser")
modparam("acc", "log_missed_flag", 3)
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 3)


# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)


# -- nathelper params --
modparam("registrar", "nat_flag", 6)
modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
modparam("nathelper", "ping_nated_only", 1)


#----- main routing logic
route{

         log(1, "");
         log(1, "Avvio procedura di Route");
         xlog("L_NOTICE", "method <%rm> from <%fu> - <%is> source address");
         xlog("L_NOTICE", "request URI <%ru> - to URI <%tu>");


         # if (nat_uac_test("2")) {
         #       log(1, "src address different than via header->NAT 
detected\n");
         #       log(1, "force_rport and fix_nated_contact and setflag(5)\n");
                 #try NAT traversal, works only if the client is symmetrical
         #       force_rport();
         #       fix_nated_contact();
         #       append_hf("P-hint: fixed NAT contact for request\r\n");
                 # flag 5 indicates that incoming request is from NATed client
         #       setflag(5);
         # };


         # 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
         # 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 rpesence 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
                      log("LOG: fix_nated_contact\n");
                     if (method == "INVITE") {
                         fix_nated_sdp("1"); # Add direction=active to SDP
                     };
                     force_rport(); # Add rport parameter to topmost Via
                     log("LOG: force_rport");
                     setflag(6);    # Mark as NATed
                 };
         };


         # 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();


         # loose-route processing
         if (loose_route()) {
                 log(1, "loose_route processing\n");
                 t_relay();
                 break;
         };


         if (!uri==myself) {
                 # mark routing logic in request
                 log(1, "marked routing logic in request - OUT FROM 
uri==myself");
                 append_hf("P-hint: outbound\r\n");
                 route(1);
                 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) {
                 log(1, "qui arrivo.....");

                 if (method=="REGISTER") {
                         log("LOG: in register main");


                         if (!www_authorize("sip.quellidelpirana.it", 
"subscriber")) {
                                 log(1, "Auth: NO - requesting 
authentification\n");
                                 www_challenge("sip.quellidelpirana.it", "0");
                                 break;
                         } else {
                                 log(1, "Auth: YES");
                                 # consume_credentials();
                         };


                         save("location");
                         break;
                 };


                 lookup("aliases");
                 if (!uri==myself) {
                         log(1, "marked routing logic in request - IN 
uri==myself");
                         append_hf("P-hint: outbound alias\r\n");
                         route(1);
                         break;
                 };


                 # native SIP destinations are handled using our USRLOC DB
                 if (!lookup("location")) {
                         sl_send_reply("404", "Not Found");
                         break;
                 };
         };
         append_hf("P-hint: usrloc applied\r\n");
         route(1);
}


route[1]
{
         log(1, "Red 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");
             break;
         };


         # 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();
         };
}


# !! Nathelper
# all incoming replies for t_onrepli-ed transactions enter here
onreply_route[1] {
         log(1, "-------------------------------------------\n");
         log(1, "onreply_route[1] entered\n");

         if (isflagset(6)) {
                 log(1, "transaction was sent to a NATED client -> fix 
nated contact\n");
                 fix_nated_contact();
                 append_hf("P-hint: fixed NAT contact for response\r\n");
         }

         if ( (status=~"100") ) {
                 log(1, "status 100 received\n");
         };

         if ( (status=~"180") ) {
                 log(1, "status 180 received\n");
         };

         if ( (status=~"202") ) {
                 log(1, "status 202 received\n");
         };

         if ( (status=~"200" || status=~"183") ) {
                 log(1, "status 2xx or 183");
                 if ( isflagset(7) ) {
                         log(1, "marked(7) as NATED-INVITE -> 
force_rtp_proxy \n");
                         force_rtp_proxy();
                         append_hf("P-hint: response forced to rtp proxy\r\n");
                 };
         };
}


ngrep result is

U 157.27.242.227:3194 -> 217.57.90.117:5060
   REGISTER sip:sip.quellidelpirana.it SIP/2.0..Via: SIP/2.0/UDP 
157.27.242.227:9759..From: 
<sip:giandrea at sip.quellidelpirana.it>;tag=43ec173f-30be-4151-8dd8-9311cfe1e4b0..To: 
<sip:giandrea at sip.
   quellidelpirana.it>..Call-ID: 
6f6d3b9b-bc1a-406a-9593-cd7ee88073ab at 157.27.242.227..CSeq: 1 
REGISTER..Contact: <sip:157.27.242.227:9759>;methods="INVITE, MESSAGE, 
INFO, SUBSCRIBE, OPTIONS, BYE
   , CANCEL, NOTIFY, ACK"..User-Agent: Windows RTC/1.0..Expires: 
1200..Event: registration..Allow-Events: presence..Content-Length: 
0....
#
U 217.57.90.117:5060 -> 157.27.242.227:9759
   SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP 157.27.242.227:9759..From: 
<sip:giandrea at sip.quellidelpirana.it>;tag=43ec173f-30be-4151-8dd8-9311cfe1e4b0..To: 
<sip:giandrea at sip.quellidelpirana.it>
   ;tag=b27e1a1d33761e85846fc98f5f3a7e58.c99d..Call-ID: 
6f6d3b9b-bc1a-406a-9593-cd7ee88073ab at 157.27.242.227..CSeq: 1 
REGISTER..WWW-Authenticate: Digest realm="sip.quellidelpirana.it", nonce="40e
   c0b5b5a0c4bf6e043f0b4c78f8a17e6f42cf2"..Server: Sip EXpress router 
(0.8.13-dev-30-db_api (i386/linux))..Content-Length: 0..Warning: 392 
217.57.90.117:5060 "Noisy feedback tells:  pid=1082 req
   _src_ip=157.27.242.227 req_src_port=3194 
in_uri=sip:sip.quellidelpirana.it out_uri=sip:sip.quellidelpirana.it 
via_cnt==1".... 

#






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