Re: [Serusers] Please help with LCR - sr-users

10 Jan 2007

Great! The only other advice I'd give you is to think about the gateway 
list, from matching and prefix. I ran into a few odd cases after 
deploying LCR where I had to define additional rules to handle URIs with 
slightly different syntax.

-Steve

Arun Kumar wrote:
...
  Hi Steve,

 thanks very much your code is working fine now ser is able to use my 
 both gw and able to send calls on both gw if first fail then it will 
 send to other.

 thanks very much for helping me.

 thanks
 arun

 On 1/10/07, *Steve Blair* &lt;blairs(a)isc.upenn.edu 
 <mailto:blairs@isc.upenn.edu>> wrote:

     Arun:

     This depends a little on your configuration. Generally speaking the
     !load_gws and !next_gw would be in route block 0. You will most likely
     want to do any per-call checks or rewrites before determining which
     gateway should receive the call. The failure_route can be inserted
     after
     your route blocks.

     -Steve

     Arun Kumar wrote:
  Hi,

 thanks, One more thing can you please guide me where do I've to      place
  this code in my ser.cfg.

 thanks

 arun

 On 1/10/07, *Steve Blair * &lt;blairs(a)isc.upenn.edu     
<mailto:blairs@isc.upenn.edu>
  <mailto: blairs(a)isc.upenn.edu
<mailto:blairs@isc.upenn.edu>>> wrote:

     Arun:

     I would try something like the following:

            if (!load_gws()) {
               sl_send_reply("500", "Server Internal Error -     
Cannot load
      gateways");
               break;
            } else {
               xlog("L_INFO", "\n[SER]: - [$Tf] Method: <$rm>  
   R-uri: <$ru>
      From: <$fu>
                 To <$tu>  : Successfully Loaded Gateway List\n");
            };

            ......

            if (!next_gw()) {
              t_reply("503", "Service not available - No more     
gateways");
               break;
            } else {
              t_on_failure("2");  <--- This will be where you      load
the
      next
     gateway
              t_relay();
              break;
            };

           failure_route[2] {

            if (!next_gw()) {
               xlog("L_CRIT","No more gateways for <$tu>\n");
               t_reply("503", "Service not available - No more     
gateways");
                break;
            } else {
               t_on_failure("2");
               t_relay();
               break;
            }
          }

     -Steve

     Arun Kumar wrote:
  Hi

 thanks for your prompt reply but I've already checked and I'm      not
able
     > to make my lcr working by seeing these two pages I got      this conf but
      >
     > This config is sending the call to my first gateway but      when My
      first
     > gateway is down its not sending the calls to other      gateways. Plese
      > help me to make this working.  Here is
my config file.
     >
     > ------------------------
     >   debug=3
     >   fork=no
     >   log_stderror=yes
     >
     >   listen= 192.168.2.210 <http://192.168.2.210>     
<http://192.168.2.210>
      <http://192.168.2.210/>     # INSERT
YOUR IP
     > ADDRESS HERE
     >   port=5060
     >   children=4
     >
     >   dns=no
     >   rev_dns=no
     >   fifo="/tmp/ser_fifo"
     >   fifo_db_url="mysql://ser:pass@localhost/ser"
     >
     > loadmodule "/usr/local/lib/ser/modules
     > /mysql.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"
     > loadmodule "/usr/local/lib/ser/modules/auth.so"
     > loadmodule "/usr/local/lib/ser/modules/auth_db.so"
     > loadmodule "/usr/local/lib/ser/modules/uri.so"
     > loadmodule "/usr/local/lib/ser/modules/uri_db.so"
     > loadmodule "/usr/local/lib/ser/modules/domain.so"
     > loadmodule "/usr/local/lib/ser/modules/nathelper.so"
     > loadmodule "/usr/local/lib/ser/modules/avpops.so"
     > loadmodule "/usr/local/lib/ser/modules/textops.so"
     > loadmodule "/usr/local/lib/ser/modules/mediaproxy.so"
     > loadmodule "/usr/local/lib/ser/modules/permissions.so"
     > loadmodule "/usr/local/lib/ser/modules/acc.so"
     > loadmodule "/usr/local/lib/ser/modules/auth_radius.so"
     > loadmodule "/usr/local/lib/ser/modules/lcr.so"
     >
     >
     >   modparam("auth_db|permissions|uri_db|usrloc|domain",     
"db_url",  "

mysql://ser:pass@localhost/ser")
   modparam("auth_db", "calculate_ha1", 1)
   modparam("auth_db", "password_column", "password")
   modparam("nathelper", "rtpproxy_disable", 1)
   modparam("nathelper", "natping_interval", 0)

   modparam("mediaproxy","natping_interval", 30)
   modparam("mediaproxy","mediaproxy_socket",     
"/var/run/mediaproxy.sock")
  #

modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/ser/sip-clients")

   #

modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/ser/rtp-clients")

   modparam("usrloc", "db_mode", 2)

   modparam("registrar", "nat_flag", 6)

   modparam("rr", "enable_full_lr", 1)

   modparam("tm", "fr_inv_timer", 120)
   modparam("tm", "fr_inv_timer_avp", "inv_timeout")

   modparam("permissions", "db_mode", 1)
   modparam("permissions", "trusted_table", "trusted")

  modparam("lcr","db_url",
"mysql://ser:pass@localhost/ser")
  modparam("lcr","gw_table","gw")
  modparam("lcr","gw_name_column","gw_name")
  modparam("lcr","ip_addr_column","ip_addr")
  modparam("lcr","port_column","port")
  modparam("lcr","grp_id_column","grp_id")
  modparam("lcr","lcr_table","lcr")
  modparam("lcr","prefix_column","prefix")
  modparam("lcr","from_uri_column","from_uri")
  modparam("lcr","priority_column","priority")
  modparam("lcr","contact_avp","1401")
  modparam("lcr","fr_inv_timer_avp","fr_inv_timer_avp")
  modparam("lcr","fr_inv_timer",90)
  modparam("lcr","fr_inv_timer_next",60)
 # ------ Account and Radius modules--------------
 modparam("acc", "db_url", "
mysql://ser:pass@localhost/ser")

 modparam("acc","log_level",1)
 modparam("acc","log_flag",1)
 modparam("acc", "db_flag", 1)

 modparam("acc","radius_flag",1)
 modparam("acc","service_type",15)

#modparam("acc","radius_config","/usr/local/etc/radiusclient-ng/radiusclient.conf")

   route {

     # 

-----------------------------------------------------------------
       #
Sanity Check Section
     # 

-----------------------------------------------------------------
       if
(!mf_process_maxfwd_header("10")) {
       sl_send_reply("483", "Too Many Hops");
       break;
     };

     if (msg:len > max_len) {
       sl_send_reply("513", "Message Overflow");
       break;
     };

     # 

-----------------------------------------------------------------
       #
Record Route Section
     # 

-----------------------------------------------------------------
      >     if (method=="INVITE"
&& client_nat_test("3")) { #      setflag(1);
      >       # INSERT YOUR IP ADDRESS HERE
     >       record_route_preset(" 192.168.2.210:5060     
<http://192.168.2.210:5060>
      <http://192.168.2.210:5060>

<http://192.168.2.210:5060/>;nat=yes");
     } else if (method!="REGISTER") {
       record_route();
     };
     # 

-----------------------------------------------------------------
       #
Call Tear Down Section
     # 

-----------------------------------------------------------------
       if
(method=="BYE" || method=="CANCEL") {  setflag(1);
      end_media_session();
     };

     # 

-----------------------------------------------------------------
       #
Loose Route Section
     # 

-----------------------------------------------------------------
      >     if (loose_route()) {
     >
     >       if ((method=="INVITE" || method=="REFER") &&
     !has_totag()) {
      >         sl_send_reply("403",
"Forbidden Cant cross 1st      bridge");
      >         break;
     >       };
     >
     >       if (method=="INVITE") {
     >
     >         if (!allow_trusted()) {
     >
     >           if (!proxy_authorize("","subscriber")) {
     >             proxy_challenge("","0");
     >             break;
     >           } else if (!check_from()) {
     >             sl_send_reply("403", "Use From=ID");
     >             break;
     >           };
     >
     >           consume_credentials();
     >         };
     >
     >         if     
(client_nat_test("3")||search("^Route:.*;nat=yes")){

setflag(6);
           use_media_proxy();
         };
       };

       route(1);
       break;
   };
   # 

-----------------------------------------------------------------
     # Call
Type Processing Section
   # 

-----------------------------------------------------------------
     if
(!is_uri_host_local()) {
     if (is_from_local() || allow_trusted()) {
         sl_send_reply("404", "I am trusted host, ");
       route(4);
       route(1);
     } else {
       sl_send_reply("403", "Forbidden, I am here");
     };
     break;
   };

   if (method=="ACK") {  setflag(1);
     route(1);
     break;
   } if (method=="CANCEL") {  setflag(1);
     route(1);
     break;
   } else if (method=="INVITE") {  setflag(1);
 #    sl_send_reply("410", "I am sending your call, ");
     route(3);
     break;
   } else  if (method=="REGISTER") {
     route(2);
     break;
   };

   lookup("aliases");
   if (!is_uri_host_local()) {
     route(4);
     route(1);
     break;
   };

   if (!lookup("location")) {
     sl_send_reply("404", "User Not Found");
     break;
   };

   route(1);
 }

 route[1] {

   # 

-----------------------------------------------------------------
     #
Default Message Handler
   # 

-----------------------------------------------------------------

   t_on_reply("1");

   if (!t_relay()) {

     if (method=="INVITE" || method=="ACK") {  setflag(1);
       end_media_session();
     };

     sl_reply_error();
   };
 }

 route[2] {

   # 

-----------------------------------------------------------------
     #
REGISTER Message Handler
   # 

-----------------------------------------------------------------

   sl_send_reply("100", "Trying");

   if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
     setflag(6);
     fix_nated_register();
     force_rport();
   };

   if (!www_authorize("","subscriber")) {
     www_challenge("","0");
     break;
   };
   if (!check_to()) {
     sl_send_reply("401", "Unauthorized");
     break;
   };

   consume_credentials();

   if (!save("location")) {
     sl_reply_error();
   };
 }

 route[3] {

   # 

-----------------------------------------------------------------
     #
INVITE Message Handler
   # 

-----------------------------------------------------------------

   if (client_nat_test("3")) {
     setflag(7);
     force_rport();
     fix_nated_contact();
   };

   if (!allow_trusted()) {

     if (!proxy_authorize("","subscriber")) {
       proxy_challenge("","0");
       break;
     } else if (!check_from()) {
       sl_send_reply("403", "Use From=ID");
       break;
     };

     consume_credentials();
   };

 route(4);

 if(!load_gws()){
    sl_send_reply("500", "Internal server error, unable to load     
gateways");
     >  break;
     >  }
     >  if(!next_gw()){
     >    sl_send_reply("503", "Service not available, no     
gateways found");
    break;
  };

   if (!is_uri_host_local()) {
     route(4);
     route(1);
     break;
   };

 #  route(1);
 }

 route[4] {

   # 

-----------------------------------------------------------------
     # NAT
Traversal Section
   # 

-----------------------------------------------------------------
      >
     >   if (isflagset(6) || isflagset(7)) {
     >     if (!isflagset(8)) {
     >       setflag(8);
     >       use_media_proxy();
     >     };
     >   };
     > }
     >
     > onreply_route[1] {
     >
     >   if ((isflagset(6) || isflagset(7)) &&
     >       (status=~"(180)|(183)|2[0-9][0-9]")) {
     >
     >     if (!search("^Content-Length:[ ]*0")) {
     >       use_media_proxy();
     >     };
     >   };
     >
     >   if (client_nat_test("1")) {
     >     fix_nated_contact();
     >   };
     > }
     >
     >
     > thanks very much
     >
     > arun
     >
     > On 1/10/07, * Greger V. Teigre* &lt;greger(a)teigre.com     
<mailto:greger@teigre.com>
      <mailto: greger(a)teigre.com
<mailto:greger@teigre.com>>
     > <mailto: greger(a)teigre.com <mailto:greger@teigre.com>     
<mailto:greger@teigre.com <mailto:greger@teigre.com>>>> wrote:
      >
     >     A quick search on iptel.org <http://iptel.org>     
<http://iptel.org>
      <http://iptel.org> would have given
     >     you these:
     >     http://www.iptel.org/lcr_module_drop_in_for_0_9_x
     >     http://www.iptel.org/lcr_with_mysql_accounting     
<http://www.iptel.org/lcr_with_mysql_accounting>

<http://www.iptel.org/lcr_with_mysql_accounting>
     >
     >
     >     Arun Kumar wrote:
     >>     Hi
     >>
     >>     please help with LCR can some one show his lcr config      file
  >    
please. I'm not able to make it working.
>
>     please help
>
>     thanks
>     arun
> 

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