[SR-Users] Strict routing configuration

Mon Jun 10 08:58:27 CEST 2013

Hello,

r-uri in initial request has nothing to do with record-route headers.

You just have to us ds_select_domain(...) function from dispatcher 
module instead of ds_select_dst(...).

Cheers,
Daniel

On 6/7/13 11:03 PM, julian arsanches wrote:
> If anyone can help me on this one thanks before hand, i have a setup 
> on kamilio and everything has been working fine, i need to interface 
> with a huge carrier and they don't like the way kamailio sends the 
> invites so i need to implement stric routing .
>
> now when kamailio sends an invite it goes like
>  +0.000140 Kamailio:5060 -> CarrierIP:5060
> INVITE sip:XXXXXX at Kamailio IP SIP/2.0.
>
> Record-Route: <sip:Kamailio IP;lr=on;ftag=as4640f260 
> <sip:54.236.192.19;lr=on;ftag=as4640f260>>.
>
> Via: SIP/2.0/UDP Kamailio IP:5060;branch=z9hG4bK9156.eeb6fbf7.0.
>
> Via: SIP/2.0/UDP Kamailio IP:5060;branch=z9hG4bK7aeceb75;rport=5060.
>
> Max-Forwards: 16.
>
> To: sip:XXXXXX at KAMAILIO IP at 54.236.192.19 
> <sip:85630573108863792 at 54.236.192.19@54.236.192.19>.
>
>
> and they wanted to receive it like this
>
> INVITE sip:XXXXXX at CARRIER IP;user=phone SIP/2.0.
>
> Via: SIP/2.0/UDP KAMAILIO IP:5062;
>
> From: <sip:XXXXXX at KAMAILIO 
> IP:5060;user=phone>;tag=514594693-3792808143-4087363760-57672641.
>
> To: <sip:XXXXXXXX at CARRIERIP;user=phone>.
>
> Call-ID: 8517ac46cfa811e2b038a0f3c1037003 at 204.2.202.12 
> <mailto:8517ac46cfa811e2b038a0f3c1037003 at 204.2.202.12>.
>
> CSeq: 1 INVITE.
>
>
> I dont know how to achieve this in kamailio, i am working fine with 
> several carriers using loose routing
>
>
> here is my config any help is greatly apreciated
>
> debug=4
>
> log_stderror=yes
>
> #!else
>
> #debug=2
>
> #log_stderror=yes
>
> #!endif
>
>
> memdbg=5
>
> memlog=5
>
>
> log_facility=LOG_LOCAL7
>
>
> fork=yes
>
> children=6
>
>
> auto_aliases=no
>
>
> #listen=udp:KAMAILIO IP
>
> listen=udp:KAMAILIO IP:5060 advertise EXTERNALIP:5060
>
>
>
> port=5060
>
>
> enable_tls=no
>
>
> #tcp_connection_lifetime=3605
>
>
> #!ifdef WITH_SRCPATH
>
> mpath="modules_k:modules"
>
> #!else
>
> mpath="/usr/lib64/kamailio/modules_k/:/usr/lib64/kamailio/modules/"
>
> #path="/usr/lib64/kamailio/modules_k/:/usr/lib64/kamailio/modules/"
>
> oadmodule "db_mysql.so"
>
> loadmodule "tm.so"
>
> loadmodule "sl.so"
>
> loadmodule "acc.so"
>
> loadmodule "rr.so"
>
> loadmodule "maxfwd.so"
>
> loadmodule "textops.so"
>
> loadmodule "pv.so"
>
> loadmodule "dispatcher.so"
>
> loadmodule "usrloc.so"
>
> loadmodule "registrar.so"
>
> loadmodule "siputils.so"
>
> loadmodule "sanity.so"
>
> loadmodule "ctl.so"
>
> loadmodule "mi_rpc.so"
>
> loadmodule "avpops.so"
>
> #!ifdef WITH_NAT
>
> loadmodule "nathelper.so"
>
> loadmodule "rtpproxy.so"
>
> #!endif
>
> loadmodule "xlog.so"
>
> #mysqlcdr
>
> modparam("acc", "db_flag", 2)
>
> modparam("acc", "db_missed_flag", 3)
>
> modparam("acc", "db_url", "mysql://some mysql server/openser")
>
> modparam("acc", "db_extra", "some credentials" )
>
>
> #loadmodule "carrierroute"
>
>
> modparam("tm", "failure_reply_mode", 3)
>
> modparam("tm", "fr_timer", 30000)
>
> modparam("tm", "fr_inv_timer", 120000)
>
>
> modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.lst")
>
> modparam("rr", "enable_full_lr", 1)
>
>
> !ifdef WITH_NAT
>
> # ----- rtpproxy params -----
>
> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722 
> <http://127.0.0.1:7722>")
>
>
> # ----- nathelper params -----
>
> modparam("nathelper", "natping_interval", 30)
>
> modparam("nathelper", "ping_nated_only", 1)
>
> modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
>
> modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org 
> <mailto:sip%3Apinger at kamailio.org>")
>
>
> # params needed for NAT traversal in other modules
>
> modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
>
> modparam("usrloc", "nat_bflag", FLB_NATB)
>
> #!endif
>
> modparam("xlog", "buf_size", 8192)
>
> modparam("xlog", "force_color", 1)
>
> #carrierroute
>
> #modparam("carrierroute", "config_file", 
> "/etc/kamailio/carrierroute.conf")
>
> #end carrierroute
>
>
> modparam("pv", "shvset", "ruta=s:$ru")
>
>
> request_route {
>
>
>         if (!mf_process_maxfwd_header("10")) {
>
> sl_send_reply("483","Too Many Hops");
>
>                 exit;
>
>         }
>
>
> #
>
> if(is_method("OPTIONS")) {
>
>             # send reply for each options request
>
> sl_send_reply("200", "ok");
>
>             exit();
>
>          }
>
> #
>
>    if(method=="BYE") {
>
>    #Account BYE transactions
>
> setflag(2);
>
> };
>
>
> #CANCEL processing
>
> if (method=="CANCEL") {
>
> setflag(2);
>
> if (t_check_trans()) t_relay();
>
>
> exit;
>
> };
>
>
> #
>
>        if (loose_route()) {
>
> if(method=="BYE") {
>
>    #Account BYE transactions
>
> setflag(2);
>
> };
>
> ##CANCEL processing
>
> if (method=="CANCEL") {
>
> setflag(3);
>
> if (t_check_trans()) t_relay();
>
>
> exit;
>
> };
>
>                         if (!t_relay()) {
>
> sl_reply_error();
>
>                 }
>
>                 exit;
>
>        }
>
>   if (is_method("INVITE")) {
>
>
>      # Account INVITE packets
>
> setflag(2);
>
> # Account Missed calls
>
> setflag(3);
>
> record_route();
>
>         }
>
>
>
>
>
> #removed 1 from string
>
> #(ai{s.substr,4,0});
>
>
> xlog("before strip,< time [$Tf] > Aip= $src_ip, r-uri($ru\n");
>
>
> #MYvariables
>
> $var(x) = $ru;
>
>
> $var(y)=$(var(x){s.substr,4,3});
>
>
> $var(z)=$(var(y){s.int <http://s.int>});
>
>
> $var(t)=$(var(x){s.substr,7,0});
>
>
>
> xlog("dsroute $var(z)fullruri($ru)\n");
>
>
> xlog(">>>>>>>>>>>>>>>>>la header TO 
> $var(t)----------fullruri($ru)<<<<<<<<<<<<<<<<<<\n");
>
>
> xlog("all---$Tf,$ct,$cs,<$cs>,callid-$ci,$re,$du,$rt,$ru,$si,$sp,$ua,$rm,$rs,$fn,$fd,$fu,$fU 
> ");
>
>
> strip(3);
>
>
> xlog("after strip time [$Tf] method ($rm) via el code ($var(z)-- 
> ($var(y))\n");
>
>
>
> ds_select_dst("$var(z)", "4");#carrer dynamic
>
>
> #ds_select_dst("103", "4");#to change static carrier
>
>
> xlog("print el destination y el $var(z) ($du)>>($td)>>> ($ru)\n");
>
>
> xlog("errors---$err.info 
> <http://err.info>,$err.rcode,$err.rreason,$rc,$rc,$rc,$rr,--end errors 
>  ");
>
>
> #remove_hf("To") ;
>
> #$insert_hf("To: sip:$var(t)@$rd\r\n", "From"); # trying to change to 
> header
>
>
>   #if (!forward()){; #if forwarding
>
>  # if(!t_relay()){;
>
>      if (!t_relay_to_udp()) {#proxing
>
>
> sl_reply_error();
>
> exit;
>
> };
>
>
> }
>
>
>
>
>
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> sr-users at lists.sip-router.org
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, San Francisco, USA - June 24-27, 2013
   * http://asipto.com/u/katu *

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