sr-users September 2009

sr-users@lists.kamailio.org

69 participants
106 discussions

[Serusers] Search trough status line for specific reason phrase
by Josip Djuricic 23 Sep '09

23 Sep '09

Dear, is there any way to search inside Status-Line of response message? I have strange b2bua that always returns SIP 500 just with different reason phrase. I need to match on them so that I can rewrite failure messages. I thought about something like this: failure_route[1] { if (t_check_status("500")) { #here I need to search trough status line for specific reasons, but have no idea how to do that if (search("^Specific message")) { t_reply("480", "Temporarily Unavailable"); break; } } } Thank you J.

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[Kamailio-Users] H323 - SIP Signalling gateway for Kamailio
by General Lee 23 Sep '09

23 Sep '09

Hi, I'm looking for a H323 - SIP signalling gateway which I can use to bridge video calls between my H323 Gatekeeper and Kamailio system. Has anyone done anything like this before? Are you able to suggest any suitable h323 - SIP video gateway solutions I could use? Thanks -- View this message in context: http://www.nabble.com/H323---SIP-Signalling-gateway-for-Kamailio-tp25530990… Sent from the OpenSER Users Mailing List mailing list archive at Nabble.com.

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[Serusers] SER as a stateless proxy server
by Muhammad Ali 23 Sep '09

23 Sep '09

Hi, How SER can be configured as a stateless proxy server? Best regards M Ali

1 0

[Kamailio-Users] content about kamailio start error
by zhangchao00001 23 Sep '09

23 Sep '09

Hello everyone, i have some questions about kamailio. After i install rtpproxy 0.3version, the kamailio server can't work any more. The following is the error message. Dose any one know the reason? dose the rtpproxy 0.3 change something that kamailio need? Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module registrar Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module textops Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module uri_db Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module siputils Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module xlog Sep 23 11:07:53 [4911] INFO:core:init_mod: initializing module acc Sep 23 11:07:53 [4911] INFO:core:probe_max_receive_buffer: using a UDP receive buffer of 255 kb Sep 23 11:07:53 [4911] INFO:core:probe_max_receive_buffer: using a UDP receive buffer of 255 kb Sep 23 11:07:53 [4911] INFO:core:probe_max_receive_buffer: using a UDP receive buffer of 255 kb Sep 23 11:07:57 [4925] ERROR:core:build_req_buf_from_sip_req: out of pkg memory Sep 23 11:07:57 [4925] ERROR:tm:print_uac_request: no more shm_mem Sep 23 11:07:57 [4925] ERROR:tm:t_forward_nonack: failure to add branches Sep 23 11:07:57 [4925] ERROR:tm:_reply_light: failed to allocate shmem buffer Sep 23 11:07:57 [4925] ERROR:tm:relay_reply: no more share memory Sep 23 11:07:57 [4925] ERROR:tm:_reply_light: failed to allocate shmem buffer

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[Kamailio-Users] Comparing AVPs to user variables
by Alex Balashov 23 Sep '09

23 Sep '09

Is there a known bug in Kamailio 1.4.1 that causes comparisons like this to be inaccurate? get_profile_size("people", "$avp(s:person_id)", "$var(u_call_count)"); ... if($var(u_call_count) >= $avp(s:call_limit)) In this case, $var(u_call_count) was 3 and $avp(s:call_limit) was 26 - I printed both values beforehand. Yet, the comparison was evaluated as true. I worked around the problem by storing the profile size in an AVP as well and comparing them instead, and it seems to have solved the problem: if($avp(s:u_call_count) >= $avp(s:call_limit)) However, I was wondering if this is a known problem in 1.4.1 and possibly 1.4.x. Thanks! -- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671

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[Kamailio-Users] Stupid softswitch sending a CANCEL with "To tag" in parallel forking
by Iñaki Baz Castillo 22 Sep '09

22 Sep '09

Hi, I've experimenting an absurd issue when a softswitch calls to Kamailio and receives two 180 (with different To tags) due to parallel forking made by Kamailio. When the softswitch receives the second 180 (with the second To tag) it sends a ridiculous CANCEL with To tag matching the second To tag received (yes, a CANCEL with To tag !!!). Of course Kamailio replies "403 Why do you send a CANCEL with To tag? please read the RFC 3261". Unfortunatelly the softswitch didn't go to the school and ignores the 403 by repeating the CANCEL. And the worst, when *any* of the ringing phones answerw, the softswitch ignores the 200 so the call is never established. IMHO there is nothing I can do to "fix" this stupid issue. I've tried to reply 200 for the CANCEL but the softswitch is not happy (it seems that it expects the 487 from the canceled branch). And of course, if I do "t_relay()" for the CANCEL then Kamailio cancels both branches (the correct behavior). The only hyper exotic "solution" I can imagine is the following: - Kamailio receives the wrong CANCEL with To tag "2". - Reply 200 for the CANCEL to make the softswitch happy. - Reply 487 with To tag "2" to make the softswitch happy (IMHO this is not possible). - Generate a spoofed BYE for the second branch (that with To tag "2"). Of course, this is not possible with dialog module as it doesn't handle parallel forking. Any suggestion? (yes, I would like to kill the softswitch). Thanks. -- Iñaki Baz Castillo <ibc(a)aliax.net>

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[Kamailio-Users] new feature: update sip msg content in request route
by Daniel-Constantin Mierla 21 Sep '09

21 Sep '09

Hello, I just committed a new function in modules_k/textops - msg_apply_changes(). Hopefully the name is suggestive enough - the function applies the changes done to the content of sip message - e.g., if you added a new header, once you use the function, that header will become visible in config file. Therefore the function tries to overcome the overhead of looping various messages back to sip server just because modifications were not visible once done. Another benefit is ability to access latest value for a field (being header or body content) in case of need to hashes or signatures for security purposes. The function can be used only in request route for now. Be carefully when using it, since it changes the expectation you had so far of always working on initially received sip message. Once the function is sued, initial content is lost forever. Since it builds a new buffer and re-parses, it is not very recommended to use it extensively. Example of usage: append_hf("My-Header: yes\r\n"); if(msg_apply_changes()) { # msg buffer has a new content if(is_present_hf("My-Header")) { # will get always here } } Testing and feedback is welcome! Cheers, Daniel

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[Kamailio-Users] questions about TLS
by zhangchao00001 21 Sep '09

21 Sep '09

Hello everybody: I've have some questions about tls connection. How to build the tls connection between two proxy? there's just one function is_peer_verified() in tlsops module. Is it that we set the paramer, the proxy will connect by itself or we should build the connection in the config file explicitly? could someone give me a example? Proxy1<----TLS--->Proxy2

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[Kamailio-Users] room does not exists in IMC
by Rajesh 21 Sep '09

21 Sep '09

Dear Experts, I have been trying to configure IMC for quite some time now..when ti try to create the chatroom (using my xlite phone), using the command #create q, i get the following error. *ERROR:imc:imc_handle_message: room [q] does not exist! Sep 17 10:25:36 [2562] ERROR:imc:imc_manager: failed to handle 'message' * Iam posting my cfg below.. Your sujjestion would be of immense help to me.. # # $Id: kamailio.cfg 5881 2009-06-22 09:13:04Z henningw $ # # Kamailio (OpenSER) SIP Server - basic configuration script # - web: http://www.kamailio.org # - svn: http://openser.svn.sourceforge.net/viewvc/openser/ # # Direct your questions about this file to: <users(a)lists.kamailio.org> debug=3 log_stderror=yes log_facility=LOG_LOCAL0 fork=yes children=4 port=5060 /* uncomment and configure the following line if you want Kamailio to bind on a specific interface/port/proto (default bind on all available) */ #listen=udp:192.168.1.2:5060 ####### Modules Section ######## #set module path mpath="/usr/local/lib/kamailio/modules/" /* uncomment next line for MySQL DB support */ loadmodule "db_mysql.so" loadmodule "mi_fifo.so" loadmodule "sl.so" loadmodule "tm.so" loadmodule "rr.so" loadmodule "pv.so" loadmodule "maxfwd.so" loadmodule "usrloc.so" loadmodule "registrar.so" loadmodule "textops.so" loadmodule "uri_db.so" loadmodule "siputils.so" loadmodule "xlog.so" loadmodule "acc.so" loadmodule "imc.so" /* uncomment next lines for MySQL based authentication support NOTE: a DB (like db_mysql) module must be also loaded */ loadmodule "auth.so" loadmodule "auth_db.so" /* uncomment next line for aliases support NOTE: a DB (like db_mysql) module must be also loaded */ #loadmodule "alias_db.so" /* uncomment next line for multi-domain support NOTE: a DB (like db_mysql) module must be also loaded NOTE: be sure and enable multi-domain support in all used modules (see "multi-module params" section ) */ #loadmodule "domain.so" /* uncomment the next two lines for presence server support NOTE: a DB (like db_mysql) module must be also loaded */ #p#loadmodule "presence.so" #p#loadmodule "presence_xml.so" #n#loadmodule "nathelper.so" # ----------------- setting module-specific parameters --------------- # ----- mi_fifo params ----- modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo") # ----- rr params ----- # add value to ;lr param to cope with most of the UAs modparam("rr", "enable_full_lr", 1) # do not append from tag to the RR (no need for this script) modparam("rr", "append_fromtag", 0) # ----- rr params ----- modparam("registrar", "method_filtering", 1) /* uncomment the next line to disable parallel forking via location */ # modparam("registrar", "append_branches", 0) /* uncomment the next line not to allow more than 10 contacts per AOR */ #modparam("registrar", "max_contacts", 10) # ----- uri_db params ----- /* by default we disable the DB support in the module as we do not need it in this configuration */ modparam("uri_db", "use_uri_table", 0) modparam("uri_db", "db_url", "") # ----- acc params ----- /* what sepcial events should be accounted ? */ modparam("acc", "early_media", 1) modparam("acc", "report_ack", 1) modparam("acc", "report_cancels", 1) /* by default ww do not adjust the direct of the sequential requests. if you enable this parameter, be sure the enable "append_fromtag" in "rr" module */ modparam("acc", "detect_direction", 0) /* account triggers (flags) */ modparam("acc", "failed_transaction_flag", 3) modparam("acc", "log_flag", 1) modparam("acc", "log_missed_flag", 2) modparam("acc", "log_extra", "src_user=$fU;src_domain=$fd;dst_ouser=$tU;dst_user=$rU;dst_domain=$rd") # ----- auth_db params ----- /* uncomment the following lines if you want to enable the DB based authentication */ modparam("auth_db", "calculate_ha1", yes) modparam("auth_db", "password_column", "password") modparam("auth_db", "db_url", "mysql://openser:openserrw@localhost/openser") modparam("auth_db", "load_credentials", "") #-------tm params----- modparam("tm", "fr_timer", 10 ) modparam("tm", "fr_inv_timer", 15 ) modparam("tm", "wt_timer", 10 ) #-------imc params----- modparam("imc", "db_url", "mysql://openser:openserrw@localhost/openser") modparam("imc", "hash_size", 8) modparam("imc", "imc_cmd_start_char", "#") #n#modparam("usrloc", "nat_bflag", 6) ####### Routing Logic ######## # main request routing logic route{ if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); exit; } # NAT detection route(4); if (has_totag()) { # sequential request withing a dialog should # take the path determined by record-routing if (loose_route()) { if (is_method("BYE")) { setflag(1); # do accounting ... setflag(3); # ... even if the transaction fails } route(1); } else { if (is_method("SUBSCRIBE") && uri == myself) { # in-dialog subscribe requests route(2); exit; } if ( is_method("ACK") ) { if ( t_check_trans() ) { # non loose-route, but stateful ACK; must be an ACK after a 487 or e.g. 404 from upstream server t_relay(); exit; } else { # ACK without matching transaction ... ignore and discard.\n"); exit; } } sl_send_reply("404","Not here"); } exit; } #initial requests # CANCEL processing if (is_method("CANCEL")) { if (t_check_trans()) t_relay(); exit; } t_check_trans(); # authentication route(3); # record routing if (!is_method("REGISTER|MESSAGE")) record_route(); # account only INVITEs if (is_method("INVITE")) { setflag(1); # do accounting } if (!uri==myself) /* replace with following line if multi-domain support is used */ ##if (!is_uri_host_local()) { append_hf("P-hint: outbound\r\n"); # if you have some interdomain connections via TLS ##if($rd=="tls_domain1.net") { ## t_relay("tls:domain1.net"); ## exit; ##} else if($rd=="tls_domain2.net") { ## t_relay("tls:domain2.net"); ## exit; ##} route(1); } # requests for my domain if( is_method("PUBLISH|SUBSCRIBE")) route(2); if (is_method("REGISTER")) { if (!save("location")) sl_reply_error(); exit; } #if(uri=~"sip:q.*@") if(uri=~"sip:q@192.168.64.75") { # IMC - message xdbg("script: message from [$fu] r-uri [$ru] msg [$rb]\n"); if(is_method("MESSAGE")) { log("MESSAGE received -> processing with imc\n"); sl_send_reply("200", "ok"); imc_manager(); exit; } else { sl_send_reply("404", "not found"); exit; }; } else { xdbg("script: message not for room, from [$fu] r-uri [$ru] msg [$rb]\n"); if(!lookup("location")) { sl_send_reply("404", "not found"); exit; } t_relay(); #sl_send_reply("200", "ok"); exit(); }; if ($rU==NULL) { # request with no Username in RURI sl_send_reply("484","Address Incomplete"); exit; } # apply DB based aliases (uncomment to enable) ##alias_db_lookup("dbaliases"); if (!lookup("location")) { switch ($retcode) { case -1: case -3: t_newtran(); t_reply("404", "Not Found"); exit; case -2: sl_send_reply("405", "Method Not Allowed"); exit; } } # when routing via usrloc, log the missed calls also setflag(2); route(1); } route[1] { /* example how to enable some additional event routes */ if (is_method("INVITE")) { #t_on_branch("1"); t_on_reply("1"); t_on_failure("1"); } if (!t_relay()) { sl_reply_error(); } exit; } # Presence route /* uncomment the whole following route for enabling presence server */ route[2] { # if presence enabled, this part will not be executed if (is_method("PUBLISH") || $rU==null) { sl_send_reply("404", "Not here"); exit; } return; } # Authentication route /* uncomment the whole following route for enabling authentication */ route[3] { if (is_method("REGISTER")) { # authenticate the REGISTER requests (uncomment to enable auth) if (!www_authorize("", "subscriber")) { www_challenge("", "0"); exit; } if ($au!=$tU) { sl_send_reply("403","Forbidden auth ID"); exit; } } else { # authenticate if from local subscriber (uncomment to enable auth) if (from_uri==myself) { if (!proxy_authorize("", "subscriber")) { proxy_challenge("", "0"); exit; } if (is_method("PUBLISH")) { if ($au!=$tU) { sl_send_reply("403","Forbidden auth ID"); exit; } } else { if ($au!=$fU) { sl_send_reply("403","Forbidden auth ID"); exit; } } consume_credentials(); # caller authenticated } } return; } # Caller NAT detection route /* uncomment the whole following route for enabling Caller NAT Detection */ route[4]{ return; } # RTPProxy control /* uncomment the whole following route for enabling RTPProxy Control */ route[5] { return; } branch_route[1] { xdbg("new branch at $ru\n"); } onreply_route[1] { xdbg("incoming reply\n"); } failure_route[1] { if (t_was_cancelled()) { exit; } } - Regards, Rajesh

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[Kamailio-Users] allow_address and "Error while converting IP address string to in_addr"
by Marcello Lupo 21 Sep '09

21 Sep '09

Hi to all, i'm using openser-1.2.2 and i'm getting the error: "Error while converting IP address string to in_addr" while using the allow_address function. I tried both with: allow_address("$(ru{uri.host})", "$rp") allow_address("$rd", "$rp") I made debugging printng content of both $rd and $(ru{uri.host}) and both return the correct value. Don't know anymore where to search about it. Any help? Thank you, regards, Marcello

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sr-users September 2009