[Serusers] Mediaproxy
Tjapko ITS Consult@ncy
itsc99 at cantv.net
Thu May 27 15:36:00 CEST 2004
Martin,
I have a question. After you run the ser mediaproxy and start up SER do you
see the subprocesses of SER with ps -A ? Does a ser -ddd -c returns OK? If
you agree with the default values for de mediaproxy modparam values you
don't have to specify them. And i still see some nathelper related stuff in
your ser.cfg Tjapko.
-----Original Message-----
From: serusers-bounces at iptel.org [mailto:serusers-bounces at lists.iptel.org]On
Behalf Of Martin Rusnak
Sent: Jueves, 27 de Mayo de 2004 04:37 a.m.
To: serusers at lists.iptel.org
Subject: Re: [Serusers] Mediaproxy
Comment out everything realted to nathelper:
loading nathelper module
function fix_nated_sdp() is from nathelper too
Have you installed and run mediaproxy? It is available from:
http://mediaproxy.ag-projects.com/
After starting media proxy check if the socket file exist an if
it has proper user rights.
giAndrea wrote:
> At 17.22 26/05/2004 +0200, Martin Rusnak wrote:
>
>> ser uses a unix socket to talk to mediaproxy. You can specify socket
>> file as a parameter --socket when starting mediaproxy (the default is
>> /var/run/ser/mediaproxy.sock). And inside ser.cfg you should specify
>> the file for the mediaproxy module, for example:
>>
>> modparam("mediaproxy", "mediaproxy_socket",
>> "/var/run/ser/mediaproxy.sock")
>
>
> i've already inserted this row on my ser.cfg.
>
>
>
> # ----------- global configuration parameters ------------------------
>
> debug=9
> fork=no
> log_stderror=yes
>
> check_via=no
> dns=no
> rev_dns=no
> port=5060
> children=4
> fifo="/tmp/ser_fifo"
>
> # ------------------ 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/textops.so"
>
> # mysql.so must be loaded !
> loadmodule "/usr/lib/ser/modules/auth.so"
> loadmodule "/usr/lib/ser/modules/auth_db.so"
>
> # !! MediaProxy
> loadmodule "/usr/lib/ser/modules/domain.so"
> loadmodule "/usr/lib/ser/modules/mediaproxy.so"
>
> # !! Nathelper
> loadmodule "/usr/lib/ser/modules/nathelper.so"
>
>
> # ----------------- setting module-specific parameters ---------------
>
> # -- usrloc params --
> modparam("usrloc", "db_mode", 2)
>
> # -- auth params --
> modparam("auth_db", "calculate_ha1", yes)
> 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)
>
> # !! Nathelper
> modparam("registrar", "nat_flag", 6)
> modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
> modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind
> NAT
>
> # !! MediaProxy
> modparam("mediaproxy", "mediaproxy_socket",
> "/var/run/proxydispatcher.sock")
> modparam("mediaproxy", "sip_asymmetrics",
> "/etc/ser/sip-asymmetrics-clients")
> modparam("mediaproxy", "rtp_asymmetrics",
> "/etc/ser/rtp-asymmetrics-clients")
> modparam("mediaproxy", "natping_interval", 20)
>
>
>
> # ------------------------- 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")) { #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_contact(); # fix_nated_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") {
>
> if (!www_authorize("webby.spidlink.com",
> "subscriber")) {
> www_challenge("webby.spidlink.com", "0");
> break;
> };
>
> 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;
> };
> };
> append_hf("P-hint: usrloc applied\r\n");
> route(1);
> }
>
> 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)) {
> use_media_proxy(); # sostituisce 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
> onreply_route[1] {
> # NATed transaction ?
> if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
> fix_contact(); # sostituisce fix_nated_contact();
> use_media_proxy(); # sostituisce force_rtp_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")) { # sostituisce (nat_uac_test("1")) {
> fix_contact(); # sostituisce fix_nated_contact();
> };
> }
>
>
>
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