November 2016 - sr-users

Roadmap to Kamailio v5.0
by Daniel-Constantin Mierla 21 Nov '16

21 Nov '16

Hello, following the last IRC devel meeting, I am writing the summary of the main points being discussed there and what's planned to get to Kamailio v5.0. 1) Freezing should be done either before Chrismas holidays or at beginning of January 2017 to aim meeting the deadline for next Debian stable distro 2) Restructuring the source tree To be done in the weeks before freezing, so eventual fixes won't have hard time to be backported to 4.4. This means it will be done in December. Open issues: a) anyone aware of a tool that can update include directives upon relocation of the file? b) who is interested to join an eventual online session to perform the restructuring? C coding is not a must here, but more knowledge of sed/awk/perl/python/... and Makefiles ... 3) Defining a template for generating main file of a module The scope is to have a descriptive file for the module where one lists exported symbols (config params, functions, kemi functions, rpc/mi commands, etc.) which along with a template will generate the c code. The effective implementation of the functions/commands will be done separately, in a different file (e.g, the main file that is generated can have references to parameter variables with extern ... and will also generate the .h which will have only the prototypes for the functions). The main goal here is to get a way of easily generated an index of exported symbols that can be used to discover missing documentation. Right now we sort of do 'gentlemen agreement' on documenting functions and parameters, but many rpc commands are not documented (they are extracted with some tool scanning compiled objects). Also, same concept as with c code can be used to generate some stubs for documentation that can be included in docbook xml files. Few proposals of templating engines were mentioned, coming in my mind now being jinja2 and mustache. Anyone else with more suggestions? Or even propose alternatives of what can be used to solve this relation between code and docs? Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

1 0

usage of app_mono : how to communicate results back to config file
by Pranathi Venkatayogi 21 Nov '16

21 Nov '16

Hi, I am using app_mono module and building my logic in c# app. I am unable to understand how to send the decision back to kamalio.cfg. More precisely: I would like my routing logic to allow specific user names though they are not registered as subscribers. Like: translate(a)myip.cyracom.com<mailto:translate@myip.cyracom.com> I have the logic in c# app which takes $ru and validates such that: Host is myip.cyracom.com User is translate How do I communicate the decision if it is valid or not back to my config script. Do I need to introduce new pseudo variable for this purpose? Thanks, Pranathi

2 1

Is there a way to detect inactive MSRP chat sessions without using SIP session timers
by Pranathi Venkatayogi 18 Nov '16

18 Nov '16

Hi, I am using MSRP feature of Blink client. I want to track when the chat starts and ends so I can free up server resources. Apparently Blink client does not send BYE when MSRP chat window closes. It does not support SIP session timers even. So potential use of SIP session timers (sst and dialog modules) is ruled out. Only possible way is to track every message that goes through the server and keep the session alive. If no message comes within “expiry time period”, server can send “bye” to all parties and tear up the session. Can you please comment if there are other approaches to solve this problem? If not, are they any modules that will help me implement the above approach easily? Thanks Pranathi

2 2

tcp_set_connection_lifetime - does not close the connection immediately
by Andy 18 Nov '16

18 Nov '16

I am calling tcp_set_connection_lifetime(conid, 1), which I understand is one sec after now, but I see it taking upto 60 secs to kill the connection, is there any other timer which has a larger interval which might affect this. -- View this message in context: http://sip-router.1086192.n5.nabble.com/tcp-set-connection-lifetime-does-no… Sent from the Users mailing list archive at Nabble.com.

2 2

Htable sht_rm_name_re usage
by Grant Bagdasarian 18 Nov '16

18 Nov '16

Hello Community, We were facing a weird issue in one of our Kamailio servers where custom htable entries were removed which did not belong to a particular call. Background Information: We use htable to store the call-id and a uuid when an INVITE message is received and remove these entries when the call is completed/failed (so on CANCEL, BYE, 4XX, 5XX, 6XX, etc). In this case the function sht_rm_name_re was causing incremented call-id's belonging to different calls to be removed from the htable, since the removal is based on regex and not the exact key. On INVITE we do this: $var(reference) = $uuid(g); $sht(calls=>$ci) = $ci; $sht(calls=>$ci::reference) = $var(reference); On BYE/4XX,5XX,6XX, etc we did this: sht_rm_name_re("calls=>$ci"); sht_rm_name_re("calls=>$ci::reference"); SIPP generates incremented call-id's, like this: 1-14875(a)1.0.0.1<mailto:1-14875@1.0.0.1>. When you generate enough calls, for instance 30 calls, the 21st call will have the call-id 21-14875(a)1.0.0.1<mailto:21-14875@1.0.0.1>. If for instance the BYE for the call-id 1-14875(a)1.0.0.1<mailto:1-14875@1.0.0.1> arrives before 21-14875(a)1.0.0.1<mailto:21-14875@1.0.0.1> , both htable entries will be removed by the sht_rm_name_re function, since it matches based on regex. To fix this we made sure the function matches on the exact keys by doing this: $var(callid) = '^' + $ci + '$'; $var(callid_reference) = '^' + $ci + '::reference' + '$'; sht_rm_name_re("calls=>$var(callid)"); sht_rm_name_re("calls=>$var(callid_reference)"); Hope this may help someone in the future facing the same issue. Regards, Grant Bagdasarian CM

2 1

Kamailio for SIP Capture With Registration
by Ali Dakroub~Vanrise Technical Support 18 Nov '16

18 Nov '16

Hello, Kindly note that I am configuring Kamailio for SIP capture with "Registration" module (registrar.so). Before loading the "Sip Capture" module (sipcapture.so) into Kamailio.cfg file, the registration of the SIP Phone (X-lite) is successful. Yet, when we add the "Sip Capture" module (sipcapture.so) into Kamailio.cfg file with the below parameters: modparam("sipcapture", "db_url", "postgres://postgres:postgres@localhost/kamailio") modparam("sipcapture", "capture_on", 1) modparam("sipcapture", "table_name", "sip_capture") modparam("sipcapture", "raw_moni_capture_on", 1) /* IP to listen. Port/Portrange apply only on mirroring port capturing */ modparam("sipcapture", "raw_socket_listen", "10.0.10.1:5060") /* Name of interface to bind on raw socket */ modparam("sipcapture", "raw_interface", "eth0") /* children for raw socket */ modparam("sipcapture", "raw_sock_children", 4) /* insert delayed */ #modparam("sipcapture", "db_insert_mode", 1) /* Linux only */ /* Promiscious mode RAW socket. Mirroring port. */ modparam("sipcapture", "promiscious_on", 1) /* activate BPF */ modparam("sipcapture", "raw_moni_bpf_on", 1) With the following routing logic: ####### Routing Logic ######## request_route { #sip_capture(); # CANCEL processing # record routing for dialog forming requests (in case they are routed) # - remove preloaded route headers remove_hf("Route"); if (is_method("INVITE|SUBSCRIBE")) record_route(); route(REGISTRAR); if ($rU==$null) { # request with no Username in RURI sl_send_reply("484","Address Incomplete"); exit; } # user location service } route[REGISTRAR] { if (is_method("REGISTER")) { if (!save("location")) { sl_reply_error(); } exit; } } The registration of the SIP Phone fails and we are getting the following error in Kamailio.log file: 2016-11-16T09:49:28.809247-08:00 ubuntu /usr/local/sbin/kamailio[10612]: ERROR: <core> [udp_server.c:550]: udp_send(): sendto(sock,0x7f60c7593910,481,0,192.168.26.4:14661,16): Bad file descriptor(9) 2016-11-16T09:49:28.856080-08:00 ubuntu /usr/local/sbin/kamailio[10612]: ERROR: sl [../../forward.h:192]: msg_send(): udp_send failed 2016-11-16T09:49:28.860251-08:00 ubuntu /usr/local/sbin/kamailio[10612]: ERROR: registrar [reply.c:734]: reg_send_reply(): failed to send 200 OK It would be highly appreciated to check what went wrong here. Thanks in advance. Ali Dakroub

2 1

Kamctl stats
by Alexandru Covalschi 18 Nov '16

18 Nov '16

Hello list, Where can I found any information to completely understand what do values returned by 'kamctl stats' represent? Cheers, Alex

2 1

Re: [SR-Users] msilo
by Slava Bendersky 17 Nov '16

17 Nov '16

Hello Daniel, Yes that good alternative. I will use sql to fetch or insert staff. Slava From: "Daniel-Constantin Mierla" <miconda(a)gmail.com> To: "sr-users" <sr-users(a)lists.sip-router.org> Sent: Wednesday, 16 November, 2016 04:37:24 Subject: Re: [SR-Users] msilo Hello, as an alternative, I think it should work by using sql_query(...) to insert whatever values one would like to have in msilo table. This might be a quick workaround until someone will code the extension to get the body via a function parameter. Cheers, Daniel On 15/11/16 16:07, Federico Cabiddu wrote: Hi Slava, if I understand correctly your scenario, you could call t_on_failure before relaying the MESSAGE. In this way you should have access to the original message in the failure route triggered after receiving a final reply and you should be able to store it with the regular msilo functions. Hope this helps. Cheers, Federico On 15 Nov 2016 3:47 pm, "Slava Bendersky" < volga629(a)skillsearch.ca > wrote: BQ_BEGIN Hello Daniel, I am not programmer, but I want place request if kaamilio devs can complete it . Thanks Slava. From: "Daniel-Constantin Mierla" < miconda(a)gmail.com > To: "sr-users" < sr-users(a)lists.sip-router.org > Sent: Tuesday, 15 November, 2016 03:00:19 Subject: Re: [SR-Users] msilo Hello, for me it is fine to add a new parameter to m_store() that takes the body content. Are you asking for more details of how can be done? Cheers, Daniel On 13/11/16 07:08, Slava Bendersky wrote: BQ_BEGIN Hello Everyone, I asking question/request to add improvement for msilo module where will have ability set $avp(i:body) in mod params. That will allow use it in m_store() by specifying body message $avp. In my case registration is on B2BUA so kamailio pass through/proxy to destination. In order to check user status online/offline kamailio wait for reply from B2BUA on MESSAGE status if it return error 503 that mean user offline and m_store(0 should store message in db, but the issue that error 503 is in final stage and MESSAGE body is not available any more. The improvement will allow specify body $var in m_store() so new way will be m_store($tu, $avp(body)). Any help thank you. Slava. _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users BQ_END BQ_END -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

2 1

Possible memory leak in mysql driver
by Alexandru Covalschi 17 Nov '16

17 Nov '16

Hello list, We’re using dev version of Kamailio: version: kamailio 5.0.0-dev4 (x86_64/linux) ff63e5 flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: ff63e5 compiled on 15:46:49 May 31 2016 with gcc 4.9.2 Sometimes we encounter such issue: Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: <core> [db_row.c:114]: db_allocate_row(): no private memory left Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_row.c:57]: db_mysql_convert_row(): could not allocate row Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_res.c:188]: db_mysql_convert_rows(): error while converting row #16 Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_res.c:217]: db_mysql_convert_result(): error while converting rows Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_dbase.c:261]: db_mysql_store_result(): error while converting result Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: <core> [db_query.c:139]: db_do_query_internal(): error while storing result Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: permissions [trusted.c:91]: reload_trusted_table(): failed to query database Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: <core> [db_row.c:114]: db_allocate_row(): no private memory left Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_row.c:57]: db_mysql_convert_row(): could not allocate row Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: db_mysql [km_dbase.c:444]: db_mysql_fetch_result(): error while converting row #15 Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: ERROR: htable [ht_db.c:234]: ht_db_load_table(): Error while fetching result Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12276]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7f5ebda8ae18), called from db_mysql: km_dbase.c: db_mysql_free_result(305), first free db_mysql: km_dbase.c: db_mysql_free_result(305) - aborting Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12281]: CRITICAL: <core> [pass_fd.c:275]: receive_fd(): EOF on 16 Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12268]: ALERT: <core> [main.c:739]: handle_sigs(): child process 12276 exited by a signal 6 Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12268]: ALERT: <core> [main.c:742]: handle_sigs(): core was not generated Nov 9 23:30:01 sbc01 /usr/local/sbin/kamailio[12268]: INFO: <core> [main.c:754]: handle_sigs(): terminating due to SIGCHLD The thing is we heavily use mysql module, but only to update the in-memory tables by kamcmd. Each N minutes a special script updates the trusted,address and htable executing kamcmd. Kamailio (and kamcmd as well) talks only with localhost mysql server. What I saw when encountered that issue on a live machine is that issue happens only with one of child processes, any other are ok. Interesting thing is that happens at the same time with machines on the same «set», I mean that issue happened simultaneously with two our test machines which actually didn’t have any load on them. The common thing between those machines is that they are in same subnet and local mysql databases are filled by scripts which query same external db. I can’t confirm if there were or there weren’t any networking issues at that time with those machines, but as soon as kamcmd queries localhost that shouldn’t be the source of the issue. So my questions are: 1. Has anyone encountered such thing? 2. Maybe the issue is already localized so it has sense to update? We actually use that on production (pls don’t throw too much rocks at me), so maintenance should be properly planned and I must be sure update won’t break anything. 3. If update is proposed - how to do it? I mean - follow the guide https://www.kamailio.org/wiki/install/devel/git or there are some other tips? I suppose in ideal world I don’t even stop the binary, only restart after make all && make install are done, as everything is in-memory. Am I correct? 4. When can we expect stable 5.0 version? (at least tell if it’s months/years) Thanks in advance!

2 3

Error message not seen before
by Kevin Greene 17 Nov '16

17 Nov '16

Hi fellow Kamailio people: I was using the Siremis (v2.0) to manage my Kamailio application. I received a message labeled "System Internal Error" It seems, assuming I understand it correctly, that a table called "kamailio.uacreg" does not exist in the database. I receive this error when I click on the following: Main System > SIP Admin Menu > Server Services > UACReg List function. Any help in pointing me in the right direction would be great. Thanks. Kevin 2016-11-16 22:29:23 (GMT)] An exception occurred while executing this script: Error message: #0, Error in query:: SELECT T0.id, T0.l_uuid, T0.l_username, T0.l_domain, T0.r_username, T0.r_domain, T0.realm, T0.auth_username, T0.auth_password, T0.auth_proxy, T0.expires FROM uacreg T0 LIMIT 10. SQLSTATE[42S02]: Base table or view not found: 1146 Table 'kamailio.uacreg' doesn't exist Script name and line number of error: /var/www/siremis/openbiz/bin/data/BizDataObj_Lite.php:447 *function:* _run_search ( Array(2) ) @ /var/www/siremis/openbiz/bin/data/BizDataObj_Lite.php 243 *function:* fetch ( ) @ /var/www/siremis/openbiz/bin/easy/EasyForm.php 690 *function:* fetchDataSet ( ) @ /var/www/siremis/openbiz/bin/easy/FormRenderer.php 69 *function:* renderSmarty ( Object(EasyForm), "/var/www/siremis/siremis/modules/ser/template/grid.tpl" ) @ /var/www/siremis/openbiz/bin/easy/FormRenderer.php 45 *function:* render ( Object(EasyForm) ) @ /var/www/siremis/openbiz/bin/easy/EasyForm.php 1648 *function:* renderHTML ( ) @ /var/www/siremis/openbiz/bin/easy/EasyForm.php 1538 *function:* render ( ) @ /var/www/siremis/openbiz/bin/easy/ViewRenderer.php 83 *function:* renderSmarty ( Object(EasyView), "/var/www/siremis/siremis/modules/ser/template/view.tpl" ) @ /var/www/siremis/openbiz/bin/easy/ViewRenderer.php 40 *function:* render ( Object(EasyView) ) @ /var/www/siremis/openbiz/bin/easy/EasyView.php 274 *function:* _render ( ) @ /var/www/siremis/openbiz/bin/easy/EasyView.php 237 *function:* render ( ) @ /var/www/siremis/openbiz/bin/BizController.php 221 *function:* renderView ( "ser.view.UacregListView", "", "", Null, "" ) @ /var/www/siremis/openbiz/bin/BizController.php 107 *function:* dispatchRequest ( ) @ /var/www/siremis/openbiz/bin/BizController.php 32 *function:* include_once ( "/var/www/siremis/openbiz/bin/BizController.php" ) @

2 1