[SR-Users] Kamailio - Separated Servers
Daniel-Constantin Mierla
miconda at gmail.com
Wed Sep 24 09:02:30 CEST 2014
Hello,
I haven't time to look at the traces and code, but be sure that you
don't do any fixing to contact address when receiving traffic from the
other proxy. The first proxy should do that.
Cheers,
Daniel
On 23/09/14 23:07, Bruno Emer wrote:
> Hello Guys!
>
> Good news about my tests here!
> I found some configurations relative to Outbound proxy and I get this
> working. Now, I can have two outbound proxies, one registrar and one
> database. I can register one user in the Outbound Proxy1 and one user
> in Outbound Proxy 2 and place a call between these users.
>
> But now I'm facing another problem! The ACK messages are not being
> delivered, so the session is being dropped after a few seconds. I
> think that the problem is in the Contact field. Trying to investigate
> it now!
>
> I'm not sure about how to change the message to deliver the ACK. Did
> someone had this problem before?
>
> In anycase, here is the routing configuration that I'm using in my
> Oubound proxy:
>
>
> request_route {
> if (($Rp == MY_WS_PORT || $Rp == MY_WSS_PORT)
> && !(proto == WS || proto == WSS)) {
> xlog("L_WARN", "SIP request received on $Rp\n");
> sl_send_reply("403", "Forbidden");
> exit;
> }
>
> route(REQINIT);
>
> if (is_method("CANCEL")) {
> if (t_check_trans()) {
> route(RELAY);
> }
> exit;
> }
>
> route(WITHINDLG);
>
> t_check_trans();
>
> if (is_method("REGISTER")) {
> remove_hf("Route");
> add_path();
> $du = "sip:REGISTRAR_IP:REGISTRAR_PORT";
> } else {
> if (is_method("INVITE|SUBSCRIBE|ACK"))
> record_route();
>
> if (@via[2] == "") {
> # From client so route to registrar...
>
> if ($rU == $null) {
> sl_send_reply("484", "Address Incomplete");
> exit;
> }
> remove_hf("Route");
> $du = "sip:REGISTRAR_IP:REGISTRAR_PORT";
> } else {
> # From registrar so route using "Route:" headers...
>
> if (!loose_route()) {
> switch($rc) {
> case -2:
> sl_send_reply("403", "Forbidden");
> exit;
> default:
> xlog("L_ERR", "in request_route\n");
> sl_reply_error();
> exit;
> }
> }
>
> t_on_failure("FAIL_OUTBOUND");
> }
> }
>
> route(RELAY);
> }
>
> route[RELAY] {
> if (!t_relay()) {
> sl_reply_error();
> }
> exit;
> }
>
> route[REQINIT] {
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> exit;
> }
>
> if(!sanity_check("1511", "7"))
> {
> xlog("Malformed SIP message from $si:$sp\n");
> exit;
> }
> }
>
> route[WITHINDLG] {
> if (has_totag()) {
> if (!loose_route()) {
> switch($rc) {
> case -2:
> sl_send_reply("403", "Forbidden");
> exit;
> default:
> if (is_method("ACK")) {
> if ( t_check_trans() ) {
> record_route();
> route(RELAY);
> exit;
> } else {
> exit;
> }
> }
> sl_send_reply("404","Not Found");
> }
> } else {
> if (is_method("NOTIFY")) {
> record_route();
> }
> route(RELAY);
> }
> exit;
> }
> }
>
> onreply_route {
> if (($Rp == MY_WS_PORT || $Rp == MY_WSS_PORT)
> && !(proto == WS || proto == WSS)) {
> xlog("L_WARN", "SIP response received on $Rp\n");
> drop;
> }
>
> if (!t_check_trans()) {
> drop;
> }
>
> if ($rm == "REGISTER" && $rs >= 200 && $rs <= 299) {
> remove_hf("Flow-Timer");
> if ($(hdr(Require)[*])=~"outbound")
> insert_hf("Flow-Timer: FLOW_TIMER\r\n", "Call-ID");
> }
> }
>
> failure_route[FAIL_OUTBOUND] {
> if (t_branch_timeout() || !t_branch_replied()) {
> send_reply("430", "Flow Failed");
> }
> }
>
> event_route[xhttp:request] {
> set_reply_close();
> set_reply_no_connect();
>
> if ($Rp != MY_WS_PORT
> #!ifdef WITH_TLS
> && $Rp != MY_WSS_PORT
> #!endif
> ) {
> xlog("L_WARN", "HTTP request received on $Rp\n");
> xhttp_reply("403", "Forbidden", "", "");
> exit;
> }
>
> xlog("L_DBG", "HTTP Request Received\n");
>
> if ($hdr(Upgrade)=~"websocket"
> && $hdr(Connection)=~"Upgrade"
> && $rm=~"GET") {
>
> # Validate Host - make sure the client is using the correct
> # alias for WebSockets
> if ($hdr(Host) == $null || !is_myself("sip:" + $hdr(Host))) {
> xlog("L_WARN", "Bad host $hdr(Host)\n");
> xhttp_reply("403", "Forbidden", "", "");
> exit;
> }
>
> # Optional... validate Origin - make sure the client is from an
> # authorised website. For example,
> #
> # if ($hdr(Origin) != "http://communicator.MY_DOMAIN"
> # && $hdr(Origin) != "https://communicator.MY_DOMAIN") {
> #xlog("L_WARN", "Unauthorised client $hdr(Origin)\n");
> #xhttp_reply("403", "Forbidden", "", "");
> #exit;
> # }
>
> # Optional... perform HTTP authentication
>
> # ws_handle_handshake() exits (no further configuration file
> # processing of the request) when complete.
> if (ws_handle_handshake())
> {
> # Optional... cache some information about the
> # successful connection
> exit;
> }
> }
>
> xhttp_reply("404", "Not Found", "", "");
> }
>
> event_route[websocket:closed] {
> xlog("L_INFO", "WebSocket connection from $si:$sp has closed\n");
> }
>
>
>
>
> Thanks again!!!
>
> *_
> _*
> *_
> _*
> *_Bruno Emer_*
>
> Mobile: +55 11 96540-0044
> email: brunoemer at gmail.com <mailto:brunoemer at gmail.com>
> <https://www.facebook.com/bruno.emer.5><https://www.linkedin.com/profile/view?id=86461237&trk=spm_pic><https://twitter.com/brunoemer_><https://www.flickr.com/photos/122070309@N03/><http://google.com/+BrunoEmer><http://instagram.com/brunoemer_>
>
> 2014-09-22 12:40 GMT-03:00 Bruno Emer <brunoemer at gmail.com
> <mailto:brunoemer at gmail.com>>:
>
> Hi, Daniel and Frank!
>
> Thanks for your support!
> Now, I changed my scenario just a lil bit to make it easy to
> understand and deploy. I'm doing the following:
>
> 1. Created a server using the "Outbound" module configuration
> example, but add WebSocket support in it. (IP Address 192.168.1.16)
> 2. Created a server running as Proxy and Registrar with
> WebSockets support. (IP Address 192.168.1.15)
> 3. Registered two users (bob and alice at enterprise.com
> <mailto:alice at enterprise.com>) using WebRTC. These users sent they
> Register requests to the Oubount server (192.168.1.16).
> 4. I'm also using an external postgres database to store the
> user informations. In my proxy/registrar server, I've configurated
> "modparam("usrloc", "db_mode", 3)", so it will not store data in
> memory.
>
>
> After register the users in my scenario, I can see the following
> information stored in my database (output of kamctl db show location):
>
> id | ruid | username | domain |
> contact | received | path | expires
> | q | callid | cseq | last_modified |
> flags | cflags | user_agent | socket | methods |
> instance | reg_id
> -----+----------------------+----------+----------------+------------------------------------------------+-----------------------+------+---------------------+----+------------------------+------+---------------------+-------+--------+-------------------+---------------------+---------+-------------------------------------------------+--------
> 277 | uloc-54203f71-10bd-2 | alice | enterprise.com
> <http://enterprise.com> |
> sip:v4s0prah at o35ctmdnnruv.invalid;transport=ws |
> sip:192.168.1.16:5060 <http://192.168.1.16:5060> | |
> 2014-09-22 15:31:21 | -1 | udb4shpe4dnm1jsl6016s5 | 82 |
> 2014-09-22 15:26:21 | 0 | 0 | JsSIP 0.4.0-devel |
> udp:192.168.1.15:80 <http://192.168.1.15:80> | 783 |
> <urn:uuid:75c837d1-740a-4c62-baa0-56a06149699e> | 1
> 278 | uloc-54203f71-10bc-2 | bob | enterprise.com
> <http://enterprise.com> |
> sip:lr78s270 at 0mkf6fgtprlh.invalid;transport=ws |
> sip:192.168.1.16:5060 <http://192.168.1.16:5060> | |
> 2014-09-22 15:34:02 | -1 | 5mpl9q4bkuqsnpk8r316j5 | 82 |
> 2014-09-22 15:29:02 | 0 | 0 | JsSIP 0.4.0-devel |
> udp:192.168.1.15:80 <http://192.168.1.15:80> | 783 |
> <urn:uuid:e92ef911-1ae4-45b1-bfc9-b5752b0f2fe1> | 1
>
>
> So, I can assume that both users are registered and ready to start
> sessions.
>
> Now, when I try to start a new session between then (let's say bob
> calling alice) what I get in the endpoint is the following message:
>
> SIP/2.0 500 I'm terribly sorry, server error occurred (1/SL)
> Via: SIP/2.0/WS
> 0mkf6fgtprlh.invalid;rport=33154;received=192.168.1.11;branch=z9hG4bK7711221
> To: <sip:alice at enterprise.com
> <mailto:sip%3Aalice at enterprise.com>>;tag=94c1b96a0e6eb467885b5057e1e49f9e.1970
> From: <sip:bob at enterprise.com
> <mailto:sip%3Abob at enterprise.com>>;tag=on056iipql
> Call-ID: 5e1pmj2fppbgg13doi4k
> CSeq: 3989 INVITE
> Server: kamailio (4.1.5 (x86_64/linux))
> Content-Length: 0
>
> What I understood about this problem is that the Proxy server is
> trying to forward the INVITE to the Outbound server and this
> server does not know that to do with this message - like forward
> it to alice.
>
> I'm stucked in this step.
>
> Here you can find the configuration files that I'm using:
>
> Outbound Server:
> https://mega.co.nz/#!Wlw2RL7S!G2YOP-1QbSCeNQddaAe3kyQMqz8yteZlZsAUpjZX4v4
> <https://mega.co.nz/#%21Wlw2RL7S%21G2YOP-1QbSCeNQddaAe3kyQMqz8yteZlZsAUpjZX4v4>
>
> Proxy Server:
> https://mega.co.nz/#!qxAXTbbb!4zBjRtmADdl3rPCN2Yidd3xnZEjFahW3GSMb00w41xc
> <https://mega.co.nz/#%21qxAXTbbb%214zBjRtmADdl3rPCN2Yidd3xnZEjFahW3GSMb00w41xc>
>
>
>
> Thanks again!
>
> Bruno Emer
>
> *_
> _*
> *_
> _*
> *_Bruno Emer_*
>
> Mobile: +55 11 96540-0044 <tel:%2B55%2011%2096540-0044>
> email: brunoemer at gmail.com <mailto:brunoemer at gmail.com>
> <https://www.facebook.com/bruno.emer.5><https://www.linkedin.com/profile/view?id=86461237&trk=spm_pic><https://twitter.com/brunoemer_><https://www.flickr.com/photos/122070309@N03/><http://google.com/+BrunoEmer><http://instagram.com/brunoemer_>
>
> 2014-09-18 18:04 GMT-03:00 Bruno Emer <brunoemer at gmail.com
> <mailto:brunoemer at gmail.com>>:
>
> Ok, Daniel!
>
> I am trying exactly what you said, but for some reason the
> proxy server can't forward the message back to the WebSocket
> server. I am getting "487 Unresolvable destination". Appears
> that my Proxy Server can't get data from usrloc.
>
> When I register an user using WebRTC I can see that the system
> stores the information in kamailio database and in the field
> "contact" it puts a string. The Proxy server is looking in
> database and just find this information. Actually, I'm trying
> to understand the entire process that envolves passing
> information from an Edge Server to a Proxy server that sends
> the Register information to another Registrar server (as I
> described before). The database is shared between all the
> servers, and they are in the same network.
>
> I just read the information in another topic, as you said, but
> I think that my case is a lil bit different from it. I you
> agree, I can post my configuration files here. Maybe this can
> help another users with the same problem!
>
> Thanks again!!!
>
> *_
> _*
> *_
> _*
> *_Bruno Emer_*
>
> Mobile: +55 11 96540-0044 <tel:%2B55%2011%2096540-0044>
> email: brunoemer at gmail.com <mailto:brunoemer at gmail.com>
> <https://www.facebook.com/bruno.emer.5><https://www.linkedin.com/profile/view?id=86461237&trk=spm_pic><https://twitter.com/brunoemer_><https://www.flickr.com/photos/122070309@N03/><http://google.com/+BrunoEmer><http://instagram.com/brunoemer_>
>
> 2014-09-17 9:13 GMT-03:00 Bruno Emer <brunoemer at gmail.com
> <mailto:brunoemer at gmail.com>>:
>
> Hello!
>
> I am relatively new to Kamailio and I'm trying to create a
> new enviroment using it in my company. I am thinking about
> use Amazon to host the servers and use OpsWorks to
> automatically escalate then if necessary. To accomplish
> this, my idea is to separate the servers, using one
> dedicated server to run as WebSocket, one to run as proxy
> and one as a Registrar. I'll be using just one database to
> store informations to all of my servers. With this, if I
> need more resources later, I can just create new servers
> with the specific roles (WebSockets, Proxy, Registrar).
>
> By now, the idea is clear, but the point is that I don't
> know how to separate the WebSockets server from the proxy
> server. Actually, I can do this, but when I have one agent
> using a regular softphone and one agent using WebSockets
> (with JSSIP) they are not able to establish a session if
> the softphone user starts it. Now, I want to know if is
> there a way to use two websockets servers, register users
> using both of then and start sessions between then, with a
> separated proxy and registrar.
>
> Has anyone done this before? Is possible to use kamailio
> like this?
>
>
> Thanks.
>
> *_
> _*
> *_
> _*
> *_Bruno Emer_*
>
> Mobile: +55 11 96540-0044 <tel:%2B55%2011%2096540-0044>
> email: brunoemer at gmail.com <mailto:brunoemer at gmail.com>
> <https://www.facebook.com/bruno.emer.5><https://www.linkedin.com/profile/view?id=86461237&trk=spm_pic><https://twitter.com/brunoemer_><https://www.flickr.com/photos/122070309@N03/><http://google.com/+BrunoEmer><http://instagram.com/brunoemer_>
>
>
>
>
>
>
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--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
Sep 22-25, Berlin, Germany
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