sr-users December 2004

sr-users@lists.kamailio.org

184 participants
400 discussions

RE: [Serusers] URI rewrite
by Matt Schulte 03 Dec '04

03 Dec '04

Ok, got this far: replace_all(";rn=\+[0-9]*;npdi=(yes|no)", ""); Anyone know if replace and substitute with nothing? Basically its not working :) -----Original Message----- From: Matt Schulte Sent: Thursday, December 02, 2004 11:00 PM To: serusers(a)lists.iptel.org Subject: [Serusers] URI rewrite Importance: High I have an usual problem, a sip provder we're using is sending us long forms of URI's: +16365551212;rn=+16182074198;npdi=yes(a)blahblah.com What I'm wanting to do is remove everything after +16365551212 (except domain of course) Ideas? stuck!!!! Thanks _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

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[Serusers] ser+asterisk
by Graziano Poretti 03 Dec '04

03 Dec '04

hi to all we installed our ser+billing+asterisk -> termination asterisk+pstn and it works fine. now i would like to bypass our asterisk and allow our ser to redirect directly to our pstn providers asterisk (at least for sip connections). i have account, password, ip of remote asterisk but can't find how should i modify my ser.cfg to allow ser to redirect to that asterisk (t_relay_to_udp allows me to redirect to an ip/port without changing anything else) thnx for your help Graziano

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[Serusers] Mac OS X
by Nicolás Lagalaye Falcionelli 03 Dec '04

03 Dec '04

How can I compile SER on Mac OS X? With the package I got instructions came in order to start SER at startup, but I found nothing about building. I tried typing "make" but I got a very long list of all kinds o errors. Can anyone help? Thanks

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[Serusers] re: return codes from exported functions in ser.cfg
by Gandhi, Jignesh 03 Dec '04

03 Dec '04

Hello all, I have written a custom modules and am thinking about returning not just -1 on error but different values if I can handle them differently in the ser.cfg. I know that I can do the following.... if (!function_a()) { do something; } else { do something else; } But I want to do store the return value of "function_a" and do different stuff depending on the return value. Is this possible ? thanks for any help in advance. Jignesh Gandhi Software Engineer II

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[Serusers] HELP: custom ser module
by Java Rockx 03 Dec '04

03 Dec '04

Hi All. I'm using ser-0.8.99-dev21 and I'm trying to create a module which will query MySQL to see if the number dialed is in a table of unassigned DIDs. The reason is that we use a third party for PSTN access and they assign us DIDs. If a DID is dialed that is not assigned to a ser subscriber our sip proxy routes the caller to the PSTN gateway. But the PSTN gateway provider sees the DID as belonging to our sip proxy so they route it right back to us. And we get in a loop. I've basically got my custom ser module working but there is a bug that I cannot find. This modules exports a single function called "is_did_unassigned()". The bug is this - when I dial a number that is unassigned is_did_unassigned() returns "0". But if I dial a number on the PSTN the call to "is_did_unassigned()" hangs. So it appears that when the MySQL query returns zero rows the module freezes. My question is this - can someone give the attached source code a quick look to see what I've messed up. Please be nice - this is my first stab at ser modules and I'm still very unclear on all the db abstractions. The MySQL table looks like this CREATE TABLE unassigned_dids (username char(10)) My ser.cfg looks like this: loadmodule "/usr/local/lib/ser/modules/dbdid.so" modparam("dbdid", "db_url", "mysql://ser:heslo@localhost/ser") route { if (!lookup("location")) { if (isflagset(31)) { # Send to voicemail route(5); } else if (does_uri_exist()) { sl_send_reply("480", "Temporarily Unavailable"); } else if (is_did_unassigned()) { # User Does Not Exist, but the DID is ours sl_send_reply("480", "Temporarily Unavailable"); } else if (uri=~"^sip:[0-9]{10}@") { # Send to PSTN Gateway route(3); } else { sl_send_reply("404", "User Not Found"); }; break; }; } And finally the code for the custom module which provided the "is_did_unassigned()" function is attached. Regards, Paul __________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250

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RE: [Serusers] SER stops after connecting to RTP Proxy
by Matt Schulte 03 Dec '04

03 Dec '04

That's pretty much the end of startup, actually :-). The rest starts jamming when you get connections to port 5060. You could debug = 4 to see more output if you'd like.. Keep in mind that SER is by no means "intelligent", especially without modules, *you* tell it what to listen for and what to say via the config file. ie: without a routing statement the proxy will literally do nothing. I would recommend starting out with nathelper.cfg located in the src sample directory, that actually works from default for local user routing. Forwarding to Asterisk (,etc..) is another story, see if you get all that working first and then move on. I made the mistake of trying to do too much without knowing how the config worked, the result I had was often infinite loops that would crash SER and Asterisk. Matt -----Original Message----- From: Tareq Siraj [mailto:to_tareq@yahoo.com] Sent: Thursday, December 02, 2004 8:38 AM To: serusers(a)lists.iptel.org Subject: [Serusers] SER stops after connecting to RTP Proxy Hi all, Its me again ... I got the RTP proxy thing working ... SER connects to RTPProxy ... then its stuck there ... doesnt proceed. the console log i get is like this: Listening on 192.168.1.21 [192.168.1.21]:5060 Aliases: machinename.localdomain:5060 machinename:* WARNING: no fork mode stateless - initializing Maxfwd module- initializing 0(8908) mod_init(): Database connection opened successfuly textops - initializing 0(0) INFO: udp_init: SO_RCVBUF is initially 110592 0(0) INFO: udp_init: SO_RCVBUF is finally 221184 2(0) INFO: fifo process starting: 8912 1(8910) rtpp_test: RTP proxy found, support for it enabled 2(8912) rtpp_test: RTP proxy found, support for it enabled 2(8912) SER: open_uac_fifo: fifo server up at /tmp/ser_fifo... 0(8908) rtpp_test: RTP proxy found, support for it enabled 1(8910) 2(8912) INFO: signal 15 received Thanks in advance. Any pointer would be appreciated. - Tareq __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

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[Serusers] help cpl-c. forwarding just do as redirect!
by jacky 03 Dec '04

03 Dec '04

I have two CPL scripts, redirect work fine, but forwarding work as redirect! My ser from CVS. ua is SJphone-252. this is redirect.xml for sip:100004@192.168.2.77, when i invited 100004, redirect to 100003 ------------------------------------------------ <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE cpl PUBLIC '-//IETF//DTD RFCxxxx CPL 1.0//EN' 'cpl.dtd'> <cpl> <incoming> <location url="sip:100004@192.168.2.77"> <redirect/> </location> </incoming> </cpl> --------------------------------------------------- this is forwarding.xml for sip:100002@192.168.2.77. I have use tcpdump on sip proxy, not find invite request send to 100002. as redirect, sip proxy after receive invite request, as soon as send to 100003. ------------------------------------------------- <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE cpl PUBLIC '-//IETF//DTD RFCxxxx CPL 1.0//EN' 'cpl.dtd'> <cpl> <subaction id="voicemail"> <location url="sip:100003@192.168.2.77"> <proxy/> </location> </subaction> <incoming> <location url="sip:100003@192.168.2.77"> <proxy timeout="8"> <busy> <sub ref="voicemail"/> </busy> <noanswer> <sub ref="voicemail"/> </noanswer> </proxy> </location> </incoming> </cpl> ------------------------------------------------- this is my ser.cfg, in ser log. not find serror. ------------------------------------------------- # # $Id: ser.cfg,v 1.21 2003/06/04 13:47:36 jiri Exp $ # # simple quick-start config script # # ----------- global configuration parameters ------------------------ debug=8 # debug level 3 (cmd line: -dddddddddd) fork=yes log_stderror=no # (cmd line: -E) # Uncomment these lines to enter debugging mode /* debug=8 fork=no log_stderror=yes */ check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) port=16800 children=4 fifo="/tmp/ser_fifo" disable_core_dump=1 alias=192.168.2.77 # ------------------ module loading ---------------------------------- # Uncomment this if you want to use SQL database loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/rr.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so" loadmodule "/usr/local/lib/ser/modules/textops.so" loadmodule "/usr/local/lib/ser/modules/auth.so" loadmodule "/usr/local/lib/ser/modules/auth_db.so" loadmodule "/usr/local/lib/ser/modules/auth_radius.so" loadmodule "/usr/local/lib/ser/modules/enum.so" loadmodule "/usr/local/lib/ser/modules/nathelper.so" loadmodule "/usr/local/lib/ser/modules/acc.so" loadmodule "/usr/local/lib/ser/modules/cpl-c.so" modparam("registrar", "nat_flag", 6) modparam("registrar", "max_expires", 1200) modparam("registrar", "min_expires", 300) modparam("registrar", "default_expires", 1200) modparam("usrloc", "db_mode", 0) modparam("usrloc", "db_mode", 2) modparam("auth_db", "calculate_ha1", yes) modparam("auth_db", "password_column", "password") modparam("rr", "enable_full_lr", 1) modparam("nathelper", "natping_interval", 10) modparam("nathelper", "ping_nated_only", 1) modparam("tm", "fr_timer", 60 ) modparam("tm", "fr_inv_timer", 120 ) modparam("acc", "log_level", 1) modparam("acc", "radius_flag", 1) modparam("cpl-c","cpl_db","mysql://ser:heslo@localhost/ser") modparam("cpl-c","cpl_table","cpl") modparam("cpl-c","cpl_dtd_file","/usr/local/etc/ser/cpl-06.dtd") modparam("cpl-c","log_dir","/var/log/") modparam("cpl-c","proxy_recurse",0) ##modparam("cpl-c","proxy_route",1) modparam("cpl-c","nat_flag",6) # ------------------------- request routing logic ------------------- # main routing logic route{ log(1, "-------------------------------------------\n"); log(1, "entering main loop\n"); # 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) { #if (len_gt( max_len )) { sl_send_reply("513", "Message too big"); break; }; if (nat_uac_test("2")) { log(1, "src address different than via header->NAT detected\n"); log(1, "force_rport and fix_nated_contact and setflag(5)\n"); #try NAT traversal, works only if the client is symmetrical force_rport(); fix_nated_contact(); append_hf("P-hint: fixed NAT contact for request\r\n"); # flag 5 indicates that incoming request is from NATed client setflag(5); }; setflag(1); setflag(2); # create transaction state; abort if error occured # if ( !t_newtran()) { # sl_reply_error(); # break; # }; if (!method=="REGISTER") { record_route(); }; # 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") { log(1, "analyzing REGISTER request\n"); log(1, "About to register cpl script\n"); if(!cpl_process_register()) { log(1, "Error: fail cpl registering\n"); break; } # Uncomment this if you want to use digest authentication if (!radius_www_authorize("192.168.2.77")) { log(1,"radius_www_authorize fail\n"); www_challenge("192.168.2.77", "0"); break; }; if (isflagset(5)) { #register from nated client, save nat_flag=6 #in location table setflag(6); }; if (!save("location")) { log(1, "save location error\n"); sl_send_reply("404", "Not Find User"); break; }; break; }; lookup("aliases"); if (method=="INVITE") { if(!cpl_run_script("incoming","force_stateful")) { log(1,"cpl_run_script fail\n"); break; }; }; # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { # handle user which was not found log(1, "requested user not found\n"); route(4); break; }; }; #add failure route which should be performed if response code >=300 if (method=="INVITE" && isflagset(4)) { log(1, "invite for voicemail user->initiate failureroute[1]\nn"); t_on_failure("1"); }; # forward to current uri now; use stateful forwarding; that # works reliably even if we forward from TCP to UDP route(1); } route[1]{ log(1, "-------------------------------------------\n"); log(1, "entering route[1] - relaying SIP message\n"); if ((isflagset(5)) || (isflagset(6))) { log(1, "at least one of the participants is NATed->record_route\n"); record_route(); log(1, " -->setting up reply processing ->onreply_route[1]"); t_on_reply("1"); if (method=="INVITE") { log(1, " INVITE request-->force_rtp_proxy, set NATED-INVITE flag(7)"); force_rtp_proxy(); append_hf("P-hint: request forced to rtp proxy\r\n"); setflag(7); }; }; log(1, "relaying message ...\n"); if (!t_relay()) { log(1, "t_relay error occured\n"); sl_reply_error(); }; } # all incoming replies for t_onrepli-ed transactions enter here onreply_route[1] { log(1, "-------------------------------------------\n"); log(1, "onreply_route[1] entered\n"); if (isflagset(6)) { log(1, "transaction was sent to a NATED client -> fix nated contact\n"); fix_nated_contact(); append_hf("P-hint: fixed NAT contact for response\r\n"); } if ( (status=~"100") ) { log(1, "status 100 received\n"); }; if ( (status=~"180") ) { log(1, "status 180 received\n"); }; if ( (status=~"202") ) { log(1, "status 202 received\n"); }; if ( (status=~"200" || status=~"183") ) { log(1, "status 2xx or 183"); if ( isflagset(7) ) { log(1, "marked(7) as NATED-INVITE -> force_rtp_proxy \n"); force_rtp_proxy(); append_hf("P-hint: response forced to rtp proxy\r\n"); }; }; } route[4]{ log(1, "-------------------------------------------\n"); log(1, "entering route[4] = requested user not online\n"); # non-Voip -- just send "off-line" if (!(method == "INVITE" || method == "ACK" || method == "CANCEL" || method == "REFER" || method == "BYE")) { log(1, "no invite,ack,cancel,refer->return 404\n"); sl_send_reply("404", "Not Found"); break; }; # not voicemail subscriber and no echo/conference call if ( isflagset(4)) { log(1, "flag(4) active\n"); }; if (uri =~ "conference") { log(1, "conference call\n"); }; if (uri =~ "echo") { log(1, "echo call\n"); }; if ( !( isflagset(4) || (uri =~ "conference") || (uri =~ "echo") ) ) { log(1, "no voicemail subscriber->return 404"); sl_send_reply("404", "Not Found and no voicemail turned on"); break; }; if ( isflagset(5) ) { log(1, "caller is NATed->record_route\n"); record_route(); log(1, " -->setting up reply processing ->onreply_route[1]\n"); t_on_reply("1"); if (method=="INVITE") { log(1, " INVITE request-->force_rtp_proxy\n"); force_rtp_proxy(); }; }; } failure_route[1] { /* XX: note: unsafe if preloaded routes without username used */ log(1, "-------------------------------------------\n"); log(1, "failureroute[1] entered"); revert_uri(); #rewritehostport("machtnix.ict.tuwien.ac.at:5060"); # append_branch(); ##t_relay_to_udp("192.168.2.77", "5060"); ##sl_send_reply("404", "Not Found"); break; } -------------------------------------------------

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[Serusers] URI rewrite
by Matt Schulte 03 Dec '04

03 Dec '04

I have an usual problem, a sip provder we're using is sending us long forms of URI's: +16365551212;rn=+16182074198;npdi=yes(a)blahblah.com What I'm wanting to do is remove everything after +16365551212 (except domain of course) Ideas? stuck!!!! Thanks

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[Serusers] all users get the same alias
by rosita sita 03 Dec '04

03 Dec '04

dear jiri, i have problem in my serweb. i have 2 clients in softphone and 1 client in hardphone. they can do communication well but they just call by "username@mydomain". mydomain is sip.pcr.ac.id. my problem is : all they just recieve the same alias. it is 62761100. i don't know how it can be. please help me.......... thanks before for your kindness. this is my ser.cfg # ----------- global configuration parameters ------------------------ #debug=3 # debug level (cmd line: -dddddddddd) #fork=yes #log_stderror=no # (cmd line: -E) /* Uncomment these lines to enter debugging mode debug=7 fork=yes log_stderror=yes */ 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=192.168.10.64 listen=127.0.0.1 # ------------------ module loading ---------------------------------- # Uncomment this if you want to use SQL database 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" loadmodule "/usr/lib/ser/modules/auth.so" loadmodule "/usr/lib/ser/modules/auth_db.so" loadmodule "/usr/lib/ser/modules/nathelper.so" loadmodule "/usr/lib/ser/modules/msilo.so" loadmodule "/usr/lib/ser/modules/acc.so" loadmodule "/usr/lib/ser/modules/group.so" loadmodule "/usr/lib/ser/modules/vm.so" # ----------------- setting module-specific parameters --------------- # -- usrloc params -- #modparam("usrloc", "db_mode", 0) # Uncomment this if you want to use SQL database # for persistent storage and comment the previous line modparam("usrloc", "db_mode", 2) modparam("usrloc", "timer_interval", 10) #mod acc modparam("acc", "log_missed_flag", 3) modparam("acc", "log_level", 1) modparam("acc", "log_flag", 1) #rrparams modparam("rr", "enable_full_lr", 1) #tm params modparam("tm", "fr_timer", 12) modparam("tm", "fr_inv_timer", 24) # -- auth params -- # Uncomment if you are using auth module # modparam("auth_db", "calculate_ha1", yes) # # If you set "calculate_ha1" parameter to yes (which true in this config), # uncomment also the following parameter) # 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) # -- msilo params -- modparam("msilo","registrar","sip:registrar@sip.pcr.ac.id") modparam("msilo", "check_time", 90) modparam("msilo", "use_contact", 0) #modparam("msilo","db_url","sql://ser:passwd@dbhost/ser") # ------------------------- request routing logic ------------------- # main routing logic alias="sip.pcr.ac.id" alias="gateway.sip.pcr.ac.id" alias="192.168.10.64" 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; }; # 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 record_route(); # loose-route processing if (loose_route()) { t_relay(); 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 (!www_authorize("sip.pcr.ac.id", "subscriber")) { www_challenge("sip.pcr.ac.id", "0"); break; }; save("location"); break; #MSILO - dumping user's offline message if (m_dump()) { log("MSILO: offline message dumped - if they were\n"); } else { log("MSILO: no offline message dumped\n"); }; break; # -- aliases -- lookup("aliases"); if (!uri==myself) { append_hf("P-hint: outbound alias\r\n"); route(1); break; }; }; # -- acc -- # call initiation if (method=="INVITE") { setflag(1); }; # -- msilo -- # we do not care about anything else but MESSAGEs if (method=="MESSAGE") { if (t_newtran()) { log("MESSAGE received -> storing using MSILO\n"); # MSILO - storing as offline message if (m_store("0")) { log("MSILO: offline message stored\n"); if (!t_reply("202", "Accepted")) { sl_reply_error(); }; } else { log("MSILO: offline message NOT stored\n"); if (!t_reply("503", "Service Unavailable")) { sl_reply_error(); }; }; # if the downstream UA does not support MESSAGE requests # go to failure_route[2] t_on_failure("2"); #if (!t_relay()) #{ # sl_reply_error(); #}; route(1); break; }; }; # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { sl_send_reply("404", "Not Found"); break; }; }; # forward to current uri now; use stateful forwarding; that # works reliably even if we forward from TCP to UDP if (!t_relay()) { sl_reply_error(); }; } route[1] {if (!t_relay()) { sl_reply_error(); }; } this a little in my config.php : $this->first_alias_number=62761100; /* expiration times, priorities, etc. for usrloc/alias contacts */ $this->new_alias_expires='567648000'; $this->new_alias_q=1.00; $this->new_alias_callid="web_call_id(a)sip.pcr.ac.id"; $this->new_alias_cseq=1; $this->ul_priority="1.00"; Sita Rosita ___________________________________________________ Create your own safe chat rooms. http://www.homemaster.net - Homemaster. Come Together. Online.

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[Serusers] ERROR: extract_body: message body has lenght zero
by Ladislav Andel 02 Dec '04

02 Dec '04

Hi everybody, I'm trying to get SER working and I get these errors(below) during running of SER. I've already found an answer in the list, but still don't know when this situation happen. After this, all UA's cannot register with SER. Would anybody be able to tell me how can I fix this. how can I set sending only INVITE, 183 and 200 messages to the rtpproxy? I'm using nathelper.cfg from source package with minor changes. Thanks for help Ladia This is from syslog: Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: extract_body: message body has lenght zero Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: force_rtp_proxy2: can't extract body from the message Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: on_reply processing failed Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: extract_body: message body has lenght zero Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: force_rtp_proxy2: can't extract body from the message Dec 2 21:31:44 linux /usr/local/sbin/ser[9313]: ERROR: on_reply processing failed

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sr-users December 2004