Hi Andrzej, I found a deadlock situation using the script you posted, thanks to an unusual way of using the functions that the module exports.
About the script itself: I found a few inconsistencies that would have caused a problem with handing the calls even if there was no bug in the software. For example: - if you want to set the maximum amount of calls per user, use the function "cnxcc_set_max_channel" - the "call-shutdown" event route is only executed if the call runs out of credit, never for "normal call clearing". For that, use "dialog:end" or "dialog:failed" instead. - you cannot access "$var(client)" from outside the process that created it. This means that when the call is killed, "$var(client)" will have a NULL value since this event is processed by a completely different process. If you want to have this information available everywhere, use a shared memory variable instead ($sht). I created a sample script [1] that applies your requirements in a slightly different way: - it authorizes the call by checking the balance - it kills the call when the credit is over - it doesn't allow more than one call per customer [1] https://gist.github.com/caruizdiaz/11359122 In this example I used a shared memory variable, to give you an idea of how to persist the customer's ID across processes. Regards, Carlos - On Sat, Apr 26, 2014 at 10:34 AM, Carlos Ruiz Díaz < carlos.ruizd...@gmail.com> wrote: > I did find a bug, using your config script, I will fix it this weekend. > Try with this configuration file [1]. > > [1] https://gist.github.com/caruizdiaz/11323017 > > In summary, you can't use more than one check mechanisms. It has to be > credit, time or channels, exclusively. > > Also, I need to test your config with Kam 4.1. I am using the trunk > version. > > Regards, > > > On Sat, Apr 26, 2014 at 10:23 AM, Andrzej Ciupek < > andrzej.ciu...@hotmail.com> wrote: > >> Yes. I want prepaid subscribers be able to create only one channel to >> prevent frauds for simultaneous calls. >> >> Greetings >> Andrzej Ciupek >> ------------------------------ >> Od: Carlos Ruiz Díaz <carlos.ruizd...@gmail.com> >> Wysłano: 2014-04-26 16:42 >> Do: Andrzej Ciupek <andrzej.ciu...@hotmail.com> >> DW: Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org> >> Temat: Re: [SR-Users] cnxcc >> >> Hi Andrzej, >> >> are you trying to setup cnxcc to check both credit and maximum >> simultaneous calls? >> >> Regards, >> >> >> >> On Sat, Apr 26, 2014 at 9:26 AM, Andrzej Ciupek < >> andrzej.ciu...@hotmail.com> wrote: >> >> Hello >> >> I’am using default config with options from an example. It looks like >> event route isn’t execuded after hangup. >> >> Apr 26 16:26:14 kamailio /usr/local/sbin/kamailio[4611]: INFO: >> <script>: 1000 has 1 call(s) >> Apr 26 16:26:15 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:16 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:17 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:18 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:19 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:20 kamailio /usr/local/sbin/kamailio[4611]: INFO: <script>: >> 1000 has 1 call(s) >> Apr 26 16:26:20 kamailio /usr/local/sbin/kamailio[4604]: INFO: <script>: >> Setting up money based credit control >> Apr 26 16:26:20 kamailio /usr/local/sbin/kamailio[4604]: INFO: <script>: >> Setting up channel based credit control >> Apr 26 16:26:20 kamailio /usr/local/sbin/kamailio[4604]: INFO: <script>: >> CNXCC ROUTE: 1000 has 2 call(s) >> >> kamailio.cfg >> … >> … >> # ----- prepaid call controll ----- >> >> #!define DLG_FLAG 28 >> #!define CC_FLAG 29 >> >> loadmodule "dialog.so" >> >> modparam("dialog", "hash_size", 2048) >> modparam("dialog", "default_timeout", 3600) >> modparam("dialog", "db_mode", 0) >> modparam("dialog", "dlg_flag", DLG_FLAG) >> >> modparam("rtimer", "timer", "name=ta;interval=1;mode=1;") >> modparam("rtimer", "exec", "timer=ta;route=SHOW_CHANNEL_COUNT") >> >> loadmodule "cnxcc.so" >> >> modparam("cnxcc", "dlg_flag", CC_FLAG) >> modparam("cnxcc", "credit_check_period", 1) #check every 1 second >> >> … >> … >> … >> route { >> … >> … >> if (!allow_source_address("2") and !allow_source_address("1")){ >> route(CNXCC); >> route(PSTN); >> } >> … >> } >> >> route[CNXCC] >> { >> >> $var(client) = "1000"; >> >> xlog("L_INFO", "Setting up money based credit control"); >> >> $var(credit) = "10"; # 10$ of credit >> $var(cost_per_sec) = "1"; # 1$ per sec >> $var(i_pulse) = "1"; # 1$ to establish the call >> $var(f_pulse) = "1"; # 1$ per second >> >> # if only one call is established, that call should last 9 >> seconds. >> >> if (!cnxcc_set_max_credit("$var(client)", >> "$var(credit)", >> "$var(cost_per_sec)", >> "$var(i_pulse)", >> "$var(f_pulse)")) { >> xlog("Error setting up credit control"); >> return; >> } >> $var(count) = -1; >> >> if (!cnxcc_get_channel_count("$var(client)", "$var(count)")) { >> xlog("Error getting customer's channel count"); >> } >> >> xlog("L_INFO", "CNXCC ROUTE: $var(client) has $var(count) >> call(s)"); >> >> if ($var(retcode) < -1) { >> xlog("Too many channels for customer"); >> sl_send_reply(403, "Forbidden"); >> >> if (!cnxcc_terminate_all("$var(client)")) { >> xlog("Error terminating customer's calls"); >> } else { >> xlog("Terminating customer's call"); >> } >> >> exit; >> } >> } >> >> route[SHOW_CHANNEL_COUNT] >> { >> $var(count) = @cnxcc.channels["1000"].count; >> xlog("L_INFO", "1000 has $var(count) call(s)"); >> } >> >> event_route[dialog:failed] >> { >> xlog("dialog failed"); >> } >> >> event_route[cnxcc:call-shutdown] >> { >> xlog("L_INFO", "Shutting down channel by callcontroll"); >> xlog("L_INFO", "[$ci]: call killed"); >> $var(count) = $var(count)-1; >> if (!cnxcc_get_channel_count("$var(client)", "$var(count)")) { >> xlog("Error getting customer's channel count"); >> } >> xlog("L_INFO", "CNXCC ROUTE: $var(client) has $var(count) >> call(s)"); >> # perform some kind of notification, database update, email >> sending, etc >> } >> >> Greetings >> Andrzej Ciupek >> >> *Od:* Carlos Ruiz Díaz <carlos.ruizd...@gmail.com> >> *Wysłano:* sobota, 26 kwietnia 2014 15:19 >> *Do:* Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>, >> Andrzej Ciupek <andrzej.ciu...@hotmail.com> >> >> Hi, >> >> sorry guys, I forgot about this. I will make my own tests and post the >> results. >> >> Andrzej, can you post the configuration file you are using? >> >> Regards, >> Carlos >> >> >> On Sat, Apr 26, 2014 at 4:15 AM, Kelvin Chua <kel...@gmail.com> wrote: >> >> No, I have not yet found the solution for this issue on my setup. >> >> Maybe Carlos can help us out >> On Apr 26, 2014 5:10 PM, "Andrzej Ciupek" <andrzej.ciu...@hotmail.com> >> wrote: >> >> Hello >> >> Have You solved this issue ? >> I’am using Kamailio 4.1.3 and I’am getting the same results. >> >> Greetings >> Andrzej Ciupek >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> >> >> >> >> -- >> Carlos >> http://caruizdiaz.com >> http://ngvoice.com >> +52 55 3048 3303 >> >> >> >> >> -- >> Carlos >> http://caruizdiaz.com >> http://ngvoice.com >> +52 55 3048 3303 >> > > > > -- > Carlos > http://caruizdiaz.com > http://ngvoice.com > +52 55 3048 3303 > -- Carlos http://caruizdiaz.com http://ngvoice.com +52 55 3048 3303
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