sr-users

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13 participants
37464 discussions

[OpenSER-Users] Openser Transaction State Machine
by Aadilkhan Maniyar 28 Apr '08

28 Apr '08

Hi, We are in the process of evaluating the architecture of OpenSER for a local deployment. For this purpose I was looking at the State Machine implemented in OpenSER. More specifically I am looking at the state machine related to the INVITE transaction. In order to know the State machine, what files do I have to look at? Can anyone please guide me. Has the state machine been documented at some place, so that I can read about it? Any help would be appreciated. Thanks a lot, Aadil

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[OpenSER-Users] mediaproxy server NEW FEATURE!!!
by Gonzalo J. Sambucaro 28 Apr '08

28 Apr '08

Folks, I developed a new feature in the Media Proxy project of AG-Proyect. With this new feature the Media Proxy Server is now able to manage the problem of the NAT IP change in an established call. It is currently in production and working without any problem. Somebody wants to test it? I would like to know what to do to make this feature available to everybody. Does anybody know? Regards, ------------------------------ Details: ------- Supose that there is an established rtp connection between two endpoints and the media proxy is in the middle doing the relay of the rtp streams, let´s say (MP = mediaproxy) EP A <--------->[NAT with IP1]<-----------> MP <--------------------> EP B EP A sends rtp to MP_IP:MP_PORT passing through the NAT box. EP B sends rtp to MP_IP:MP_PORT without passing through a NAT box. The MP know that the caller = NAT_IP1:NAT_PORT1, and the called = EP_B_IP:EP_B_PORT Now, supose that the NAT box change their PUBLIC IP from IP1 to IP2, so this escenary EP A <------->[NAT with IP1]<---------> MP <-------------> EP B will change to this EP A <------->[NAT with IP2]<---------> MP <--------------> EP B so the MP should detect that change of IPs and continue relaying the rtp streams but now to IP2:PORT2 instead of IP1:PORT1. Well, that was the situation y have experienced. To fix this, I developed this solution, changing rtphandler.py file: 1) When the first rtp packet of a source arrives, save the SSRC field in the MP. - Save the SSRC of the caller. - Save the SSRC of the called. 2) If arrives a rtp packet with unknown source IP but with the same SSRC field of some of the two streams, updates the binding (with the new IP detected) between the caller and the MP or between the called and the MP according to the field SSRC previously saved. Note: SSRC (RFC 3550 RTP), (from the rfc: "The SSRC identifier carried in the RTP header and in various fields of RTCP packets is a random 32-bit number that is required to be globally unique within an RTP session ") -------------------------------- -- Gonzalo J. Sambucaro Ingeniería de Software Tel: +54-341-4230504 MSLC gonzalo.sambucaro(a)mslc.com.ar www.mslc.com.ar Ocampo y Esmeralda - Vivero de Empresas de Base Tecnológica Ciudad Universitaria Rosario UNR, CCT CONICET Rosario - Santa Fé - Argentina -- Gonzalo J. Sambucaro Ingeniería de Software Tel: +54-341-4230504 MSLC gonzalo.sambucaro(a)mslc.com.ar www.mslc.com.ar Ocampo y Esmeralda - Vivero de Empresas de Base Tecnológica Ciudad Universitaria Rosario UNR, CCT CONICET Rosario - Santa Fé - Argentina

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[OpenSER-Users] Speeddial
by CSB 28 Apr '08

28 Apr '08

Is it possible to use speeddial to associate one number with two destinations. E.g. user dials 10 which then calls both sip:bob@domain.com and sip:jane@domain.com. If not then could anyone suggest an alternative scheme whereby a user dials a short code which can be associated with multiple URIs for parallel or serial forking? Thanks Cameron

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[OpenSER-Users] Bigger OpenSER installation (2-5 Mio subs) and High Availability
by Peter P GMX 28 Apr '08

28 Apr '08

Hello, I have done a project for a SIP provider who is rapidly growing. Designed as a SBC for about 50.000 subscribers at first, I setup a system with a high availability cluster (HA/DRBD) on 2 servers which had one single database on the DRBD volume. Failover works like a charm with only very limited downtime. Now we have to consider to scale the system to about 2-5 Mio subs, so I have to challenge with some things I cannot oversee at the moment. My question is: How do you deal with big installations? - how do you load balance the openser? Is it advisable put put some dedicated SIP hardware in front for load balancing? Or is the dispatcher module on a seperate machine sufficiant (again HA-issue)? - we have a portion of calls who have to go through mediaproxy (How do you load balance this?) - Do you face database issues? We think about setting up a database on 2 seperate servers. Is MySQL ok for this or do you use other DBMS? - Form your exoperience: Are there other things I have to consider? Best regards and thanks for your support. Peter

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[OpenSER-Users] Proxy Authorization - Two Digests
by Adrian Georgescu 28 Apr '08

28 Apr '08

Ash, You can set up the SIP Proxies to use the same nonce. Adrian >>>>>>>>>> We are having a separate issue now with our ATA - the ATA (a cheap generic brand) we use as our CPE, won't issue two digest authentication response unlike X-Lite. Seems like we will be forced to use authentication at B2BUA level only after all. Anyone knows any ATA positively supports sending two separate authentication digests for two separate nonce in same INVITE? Ovidiu Sas wrote: > I don't think it is reported. > > On Fri, Apr 25, 2008 at 6:36 AM, Iñaki Baz Castillo <ibc at in.ilimit.es> wrote: > >> El Friday 25 April 2008 09:57:09 Ovidiu Sas escribió: >> >> >>> Yes, it should work but it doesn't. >>> >> > I remember trying this long time ago (using openser 1.0 and chaining >> > several openser proxies) and I hit the same issue: openser is not able >> > to deal properly with multiple Proxy-Authorization headers. >> >> So this is a bug (IMHO an important bug), isn't? is it reported? >> >> >> -- >> >>

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[OpenSER-Users] interaction between msrp and openser
by Adrian Georgescu 28 Apr '08

28 Apr '08

Hi Gaoqiang, MSRPRelay is not dependent on OpenSER. You can set it up separately based on the instructions available at http://msrprelay.org. You only need a client with support for the MSRP relay extension, the SIP session can be established by any version of OpenSER. I believe you refer to the MSRP chat server when you say "session switch". MSRP chat server is work in progress, no software has been released yet, we plan to release a first version this summer. Regards, Adrian >>> Hi list, Could anyone here tell me is the openser 1.3.x version support MSRP(e.g. MSRPRelay)? Is there any document describe how to configure the openser work with MSRP(MSRPRelay) as a message session switch. Does anyone have successful experience configure openser to work with the MSRP Relay. Thanks a lot. -- Gaoqiang Qian Automation System and Technology Helsinki University Of Technology GSM: +358415058138

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[OpenSER-Users] Force OpenSER to send all SIP messages to src_port
by Höskuldur 27 Apr '08

27 Apr '08

Hi, How can I force OpenSER to send all SIP messages to source port of the UA? That is, the same port as userloc lists in MySQL/openser/location/received column? For some reason it only sends the Invite message to that port, but then all Info,Ack,Ok messages go to the port found in VIA...which the UA doesn't receive because it's behind NAT. I've tried force_rport(); without any success, but I must admit that I'm not sure I used it in the right route. My config is previously posted here: http://www.voipuser.org/forum_topic_12946.html Any ideas?

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[Serusers] RTPProxy
by Strassburger, Patrick 27 Apr '08

27 Apr '08

> Hi all, > > Is there an easy way to disable RTPProxy for certain calls eg. based > on called number? > Am using the ser.cfg from > http://www.iptel.org/ser/howtos/optimizing_the_use_of_rtp_proxy. > > For whatever reason all calls are passing the RTPProxy. > - I would like to disable the RTPProxy for calls where I know the > destination is able to handle NAT. > - For calls where I know both UAT are behind the same NAT. > As soon as I update the realm of those clients with whatever > value beside the ser IP adress, those useres cannot login anymore. > > Is this sufficient information - do you need the ser.cfg? > > Thanks > Patrick > > > ************************************************************************************* The message is intended for the named addressee only and may not be disclosed to or used by anyone else, nor may it be copied in any way. The contents of this message and its attachments are confidential and may also be subject to legal privilege. If you are not the named addressee and/or have received this message in error, please advise us by e-mailing security(a)colt.net and delete the message and any attachments without retaining any copies. Internet communications are not secure and COLT does not accept responsibility for this message, its contents nor responsibility for any viruses. No contracts can be created or varied on behalf of COLT Telecommunications, its subsidiaries or affiliates ("COLT") and any other party by email Communications unless expressly agreed in writing with such other party. Please note that incoming emails will be automatically scanned to eliminate potential viruses and unsolicited promotional emails. For more information refer to www.colt.net or contact us on +44(0)20 7390 3900.

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[OpenSER-Users] SIP SIMPLE - XMPP interoperability issue
by Gaoqiang Qian 27 Apr '08

27 Apr '08

Hello everyone, I have setup the openser server with the very basic default configuration. Now I have to configure my openser server to connect with a xmpp envoironment on another host with a purpose of piloting the SIP SIMPLE - XMPP IOP. So does anyone here have successful experience of configure openser to connect with XMPP on different hosts? Or could someone provide me some instruction how to configure it. Thanks a lot in advance -- Gaoqiang Qian Automation System and Technology Helsinki University Of Technology GSM: +358415058138

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[OpenSER-Users] OpenSER+mediaproxy changes SIP dst port so client never receives ACK, causing timeout
by Höskuldur 27 Apr '08

27 Apr '08

I hope I'm not waisting your time with a problem that has a obvious solution, I've actually tried to find a similar case without any success. I'm making a call between two NATed clients which are using STUN. The call goes through OpenSER which is configured to use mediaproxy - see my config at the bottom of my email Below is a dump from the location table: MySQL / openser / location _______________________________________________________________________ | contact | received | flag | ----------------------------------------------------------------------- |sip:1007@130.XXX.XXX.XXX:49162 |sip:130.XXX.XXX.XXX:49163 | 1 | |sip:1003@85.XXX.XXX.XXX:3676 | sip:85.XXX.XXX.XXX:3688 | 1 | ----------------------------------------------------------------------- The problem is that the call from 1003 to 1007 initiates OK, but disconnects after 20-30 seconds. From my logs it looks like OpenSER stops sending SIP messages to port 49163 after getting SDP from 1007, but starts sending to 49162 instead, so 1007 never gets the ACK message. So 1007 repeatedly sends SDP description but OpenSER replies to the wrong port. Please see the attached picture, graph from Wireshark.If the picture doesn't attach, it can be found here: http://hoski.public.is/openser.jpg So my question is, why does OpenSER stop sending SIP messages to port: 49163 and how can I fix it? Thanks in advance, Hoski listen = XX.XXX.XX.XXX mpath = "/usr/lib/openser/modules" children = 8 debug = 3 fork = yes group = "openser" user = "openser" disable_tcp = no log_facility=LOG_LOCAL7 log_stderror = no tcp_children = 4 fifo = "/tmp/openser_fifo" fifo_db_url="mysql://openser:XXXX@localhost/openser" # ATH: PrÃ³eftir BOSTON fifo_group = "openser" fifo_mode = 0666 fifo_user = "openser" mhomed = no server_signature = yes sock_group = "openser" sock_mode = 0600 sock_user = "openser" unix_sock = "/tmp/openser.sock" unix_sock_children = 1 reply_to_via = no sip_warning = no check_via = no dns = no rev_dns = no syn_branch = yes disable_core_dump = no dns_try_ipv6 = yes dns_use_search_list = yes loadmodule "usrloc.so" modparam("usrloc", "user_column", "username") modparam("usrloc", "domain_column", "domain") modparam("usrloc", "contact_column", "contact") modparam("usrloc", "expires_column", "expires") modparam("usrloc", "q_column", "q") modparam("usrloc", "callid_column", "callid") modparam("usrloc", "cseq_column", "cseq") modparam("usrloc", "methods_column", "methods") modparam("usrloc", "flags_column", "flags") modparam("usrloc", "user_agent_column", "user_agent") modparam("usrloc", "received_column", "received") modparam("usrloc", "socket_column", "socket") modparam("usrloc", "use_domain", 0) modparam("usrloc", "desc_time_order", 0) modparam("usrloc", "timer_interval", 60) modparam("usrloc", "db_url", "mysql://openser:openserrw@localhost/openser") modparam("usrloc", "db_mode", 1) modparam("usrloc", "matching_mode", 0) modparam("usrloc", "cseq_delay", 20) loadmodule "mediaproxy.so" modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy/proxydispatcher.sock") modparam("mediaproxy", "sip_asymmetrics", "/etc/openser/sip-asymmetric-clients") modparam("mediaproxy", "rtp_asymmetrics", "/etc/openser/rtp-asymmetric-clients") modparam("mediaproxy", "natping_interval", 30) loadmodule "rr.so" modparam("rr", "enable_full_lr", 0) modparam("rr", "append_fromtag", 1) modparam("rr", "enable_double_rr", 1) modparam("rr", "add_username", 0) loadmodule "tm.so" modparam("tm", "fr_timer", 30) modparam("tm", "fr_inv_timer", 120) modparam("tm", "wt_timer", 5) modparam("tm", "delete_timer", 2) modparam("tm", "retr_timer1p1", 1) modparam("tm", "retr_timer1p2", 2) modparam("tm", "retr_timer1p3", 4) modparam("tm", "retr_timer2", 4) modparam("tm", "noisy_ctimer", 0) modparam("tm", "ruri_matching", 1) modparam("tm", "via1_matching", 1) modparam("tm", "unix_tx_timeout", 2) modparam("tm", "restart_fr_on_each_reply", 1) modparam("tm", "fr_timer_avp", "s:callee_fr_timer") modparam("tm", "fr_inv_timer_avp", "s:callee_fr_inv_timer") modparam("tm", "pass_provisional_replies", 0) loadmodule "xlog.so" modparam("xlog", "buf_size", 4096) modparam("xlog", "force_color", 1) loadmodule "domain.so" modparam("domain", "db_url", "mysql://openser:XXXXXXX@localhost/openser") modparam("domain", "db_mode", 1) modparam("domain", "domain_table", "domain") modparam("domain", "domain_col", "domain") loadmodule "nathelper.so" modparam("nathelper", "natping_interval", 180) modparam("nathelper", "ping_nated_only", 0) modparam("nathelper", "received_avp", 42) modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpproxy.sock") modparam("nathelper", "rtpproxy_disable", 1) modparam("nathelper", "rtpproxy_disable_tout", 60) modparam("nathelper", "rtpproxy_tout", 1) modparam("nathelper", "rtpproxy_retr", 5) modparam("nathelper", "sipping_method", "OPTIONS") loadmodule "textops.so" loadmodule "sl.so" modparam("sl", "enable_stats", 1) loadmodule "uri.so" loadmodule "registrar.so" modparam("registrar", "default_expires", 3600) modparam("registrar", "min_expires", 60) modparam("registrar", "max_expires", 0) modparam("registrar", "default_q", 0) modparam("registrar", "append_branches", 1) modparam("registrar", "use_domain", 0) modparam("registrar", "case_sensitive", 0) modparam("registrar", "desc_time_order", 0) modparam("registrar", "received_avp", 42) modparam("registrar", "received_param", "received") modparam("registrar", "max_contacts", 0) modparam("registrar", "retry_after", 0) modparam("registrar", "use_branch_flags", 0) modparam("registrar", "method_filtering", 0) modparam("registrar", "path_mode", 2) modparam("registrar", "path_use_received", 0) modparam("registrar", "nat_flag", 6) loadmodule "maxfwd.so" modparam("maxfwd", "max_limit", 256) loadmodule "mysql.so" modparam("mysql", "ping_interval", 300) modparam("mysql", "auto_reconnect", 1) loadmodule "auth.so" modparam("auth", "nonce_expire", 300) modparam("auth", "rpid_suffix", ";party=calling;id-type=subscriber;screen=yes") modparam("auth", "rpid_avp", "s:rpid") loadmodule "auth_db.so" modparam("auth_db", "db_url", "mysql://openser:XXXXXX@localhost/openser") modparam("auth_db", "user_column", "username") modparam("auth_db", "domain_column", "domain") modparam("auth_db", "password_column", "password") modparam("auth_db", "password_column_2", "ha1b") modparam("auth_db", "calculate_ha1", 1) modparam("auth_db", "use_domain", 0) modparam("auth_db", "load_credentials", "rpid") loadmodule "uri_db.so" modparam("uri_db", "db_url", "mysql://openser:XXXXXXX@localhost/openser") modparam("uri_db", "uri_table", "uri") modparam("uri_db", "uri_user_column", "username") modparam("uri_db", "uri_domain_column", "domain") modparam("uri_db", "uri_uriuser_column", "uri_user") modparam("uri_db", "subscriber_table", "subscriber") modparam("uri_db", "subscriber_user_column", "username") modparam("uri_db", "subscriber_domain_column", "domain") modparam("uri_db", "use_uri_table", 0) modparam("uri_db", "use_domain", 0) ######################################################################## # Request route 'main' ######################################################################## route[0] { xlog("L_INFO", "New request - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); force_rport(); if(msg:len > max_len) { xlog("L_INFO", "Message too big - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("513", "Message Too Big"); exit; } if (!mf_process_maxfwd_header("10")) { xlog("L_INFO", "Too many hops - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("483", "Too Many Hops"); exit; } if(!is_method("REGISTER")) { if(nat_uac_test("19")) { record_route(";nat=yes"); } else { record_route(); } } if(is_method("CANCEL") || is_method("BYE")) { end_media_session(); } if(loose_route()) { if(!has_totag()) { xlog("L_INFO", "Initial loose-routing rejected - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("403", "Initial Loose-Routing Rejected"); exit; } if(nat_uac_test("19") || search("^Route:.*;nat=yes")) { fix_nated_contact(); setflag(6); } route(3); } if(is_method("REGISTER")) { route(2); } if(is_method("INVITE")) { route(4); } if(is_method("CANCEL") || is_method("ACK")) { route(8); } route(9); } ######################################################################## # Request route 'stop-media-proxy' ######################################################################## route[1] { if(isflagset(22)) { end_media_session(); } } ######################################################################## # Request route 'base-route-register' ######################################################################## route[2] { sl_send_reply("100", "Trying"); if(!www_authorize("", "subscriber")) { xlog("L_INFO", "Register authentication failed - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); www_challenge("", "0"); exit; } if(!check_to()) { xlog("L_INFO", "Spoofed To-URI detected - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("403", "Spoofed To-URI Detected"); exit; } consume_credentials(); if(!search("^Contact:[ ]*\*") && nat_uac_test("19")) { fix_nated_register(); setflag(6); } if(!save("location")) { xlog("L_ERR", "Saving contact failed - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_reply_error(); exit; } xlog("L_INFO", "Registration successful - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); exit; } ######################################################################## # Request route 'base-outbound' ######################################################################## route[3] { if(isflagset(6)) { if(!isflagset(22) && !search("^Content-Length:[ ]*0")) { setflag(22); use_media_proxy(); } t_on_reply("2"); } else { t_on_reply("1"); } if(!isflagset(21)) { t_on_failure("1"); } if(isflagset(29)) { append_branch(); } if(is_present_hf("Proxy-Authorization")) { consume_credentials(); } xlog("L_INFO", "Request leaving server, D-URI='$du' - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); if(!t_relay()) { sl_reply_error(); if(is_method("INVITE") && isflagset(6)) { end_media_session(); } } exit; } ######################################################################## # Request route 'base-route-invite' ######################################################################## route[4] { sl_send_reply("100", "Trying"); if(!proxy_authorize("", "subscriber")) { xlog("L_INFO", "Proxy authentication failed - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); proxy_challenge("", "0"); exit; } if(!check_from()) { xlog("L_INFO", "Spoofed From-URI detected - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("403", "Spoofed From-URI Detected"); exit; } if(nat_uac_test("19")) { fix_nated_contact(); setflag(6); } route(5); } ######################################################################## # Request route 'invite-find-callee' ######################################################################## route[5] { if(!is_domain_local("$ruri")) { setflag(20); route(7); } if(does_uri_exist()) { xlog("L_INFO", "Callee is local - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); route(6); } else { xlog("L_INFO", "Callee is not local - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); route(7); } exit; } ######################################################################## # Request route 'invite-to-internal' ######################################################################## route[6] { if(!lookup("location")) { xlog("L_INFO", "Local user offline - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("404", "User Offline"); } else { xlog("L_INFO", "Local user online - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); route(3); } exit; } ######################################################################## # Request route 'invite-to-external' ######################################################################## route[7] { if(isflagset(20)) { xlog("L_INFO", "Call to foreign domain - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); route(3); exit; } xlog("L_INFO", "Call to unknown user - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("404", "User Not Found"); exit; } ######################################################################## # Request route 'base-route-local' ######################################################################## route[8] { t_on_reply("1"); if(t_check_trans()) { xlog("L_INFO", "Request leaving server - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); if(!t_relay()) { sl_reply_error(); } } else { xlog("L_INFO", "Dropping mis-routed request - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); } exit; } ######################################################################## # Request route 'base-route-generic' ######################################################################## route[9] { xlog("L_INFO", "Method not supported - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("501", "Method Not Supported Here"); exit; } ######################################################################## # Request route 'base-filter-failover' ######################################################################## route[10] { if(!t_check_status("408|500|503")) { xlog("L_INFO", "No failover routing needed for this response code - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); route(1); exit; } } ######################################################################## # Reply route 'base-standard-reply' ######################################################################## onreply_route[1] { xlog("L_INFO", "Reply - S=$rs D=$rr F=$fu T=$tu IP=$si ID=$ci\n"); exit; } ######################################################################## # Reply route 'base-nat-reply' ######################################################################## onreply_route[2] { xlog("L_INFO", "NAT-Reply - S=$rs D=$rr F=$fu T=$tu IP=$si ID=$ci\n"); if(nat_uac_test("1")) { fix_nated_contact(); } if(isflagset(6) && status=~"(180)|(183)|2[0-9][0-9]") { if(!search("^Content-Length:[ ]*0")) { use_media_proxy(); } } exit; } ######################################################################## # Failure route 'base-standard-failure' ######################################################################## failure_route[1] { route(10); route(1); }

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