[Serusers] Mediaproxy sample

[Kiko Vives]

Hi all.

Can anyone send me I simple ser.cfg file with mediaproxy support or take a
look at mine which is below ?

I have been using rtpproxy and nathelper and now I have changed to
Mediaproxy. I have substitute the functions but it does not work properly
and it hangs when I try to establish a session between 2 UAs and I am almost
sure that is my ser.cfg (attached).

Thanks in advance:

Kiko

ser.cfg
=====

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"
listen=193.145.235.165

# Defino lo alias siguiente para identificar si la llamada va hacia dentro
# del dominio o ambas partes pertenecen al dominio.
alias="ua.es"
alias="sipua.ua.es"

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

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

loadmodule "/usr/local/ser/lib/ser/modules/auth.so"
loadmodule "/usr/local/ser/lib/ser/modules/acc.so"
loadmodule "/usr/local/ser/lib/ser/modules/auth_radius.so"


# !! Mediaproxy
#loadmodule "/usr/local/ser/lib/ser/modules/domain.so"
loadmodule "/usr/local/ser/lib/ser/modules/mediaproxy.so"


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

# -- usrloc params --

modparam("usrloc", "db_mode",   0)
modparam("auth_radius", "radius_config",
"/usr/local/etc/radiusclient/radiusclient.conf")

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

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

# Mediaproxy !!!
modparam("mediaproxy", "mediaproxy_socket",
"/usr/local/ser/etc/ser/mediaproxy.socket")
modparam("mediaproxy", "sip_asymmetrics",
"/usr/local/ser/etc/ser/sip-asymmetric-clients")
modparam("mediaproxy", "rtp_asymmetrics",
"/usr/local/ser/etc/ser/rtp-asymmetric-clients")
modparam("mediaproxy", "natping_interval", 20)

modparam("acc", "log_level", 1)
modparam("acc", "radius_config",
"/usr/local/etc/radiusclient/radiusclient.conf")
modparam("acc", "radius_flag", 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;
 };

        # !! 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 (client_nat_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_contact(); # Rewrite contact with source IP of signalling
          #if (method == "INVITE") {
             # fix_nated_sdp("1"); # Add direction=active to SDP
          #};
          force_rport(); # Add rport parameter to topmost Via
          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();

 # subsequent messages withing a dialog should take the
 # path determined by record-routing
 if (loose_route()) {
      # mark routing logic in request
      append_hf("P-hint: rr-enforced\r\n");
      route(1);
      break;
 };

 if (!uri==myself) {
      # mark routing logic in request
      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) {

      if (method=="REGISTER") {

           # Uncomment this if you want to use digest authentication
           if (!radius_www_authorize("193.145.235.165")) {
                www_challenge("193.145.235.165", "1");
                break;
           };
           setflag(1);
           save("location");
           break;
      };

      lookup("aliases");
      if (!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;
          };
     };
     setflag(1);
     append_hf("P-hint: usrloc applied\r\n");
     route(1);
}

route[1]
{
     #if client or server know to be behind a NAT, enable relay
     if (isflagset(6))
     {
         log("LOG: Forzamos RTPPRoxy\n\r");
         use_media_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
onreply_route[1] {
     # NATed transaction ?
     if (isflagset(6) && status =~ "(183)|2[0-9][0-9]")
     {
             fix_contact();
             use_media_proxy();
             # otherwise, is it a transaction behind a NAT and we did not
             # know at time of request processing ? (RFC1918 contacts)
     }
     else if (client_nat_test("1"))
     {
          fix_contact();
     };
 }