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37548 discussions

Video Key-Frame Request using RTCP FIR or SIP INFO message
by Muhammad Shahzad 02 Feb '15

02 Feb '15

Hi, This may be a bit out of focus topic for this forum but i am posting it here anyway with hope that some guru would shed some light on it and point me to right direction. The problem is that i want to establish video call between a webrtc and a sip client using kamailio (for signalling) and RTPEngine (for media relay). Both signalling and the audio stream seems to work perfectly fine The remote video on webrtc client side (i.e. video stream from sip client) takes about 20-30 seconds to establish but once it starts it works fine. However, the remote video on sip client side (i.e. video stream from webrtc client) starts almost immediately (within 3-5 seconds) but it gets stuck after 1 or 2 seconds, then it goes blank after about 30 seconds. After a long discussion with sip client developer, we now understand the fact that sip client sends a request for so called key-frame, which is ignored by webrtc client. This request is sent through both RTCP stream and SIP INFO message. The SIP INFO message seems to be pointless as media is internally managed by chrome/firefox and these browsers don't give us such sophisticated access and control over media streams. Please let me know if this assumption is wrong. For the RTCP stream based request (RTCP-FIR), i only see "Invalid RTCP packet type" error message in RTPEngine logs (not sure if it drops this packet or relay it anyway). Does anyone has any idea on how can we either, 1. Force WebRTC client (running on Chrome / Firefox) to honor SIP INFO message and issue a key-frame in RTP video stream in response to this SIP request? OR 2. Force RTPEngine to accept RTCP-FIR and issue key-frame in RTP video stream on webrtc client's behalf? If there is any other solution to this, please feel free to share. Thank you.

4 5

What could cause an intermittent fault (28) with http_query()?
by Tim Chubb 01 Feb '15

01 Feb '15

Hi All I seem to be experiencing an intermittent fault with the utils http_query() method. We are implementing a routing and white list component that is accessed via a REST api, however i have observed several occasions where this is logged: Jan 30 16:04:17 vs-kam-prod02 /usr/local/sbin/kamailio[13184]: ERROR: utils [functions.c:149]: http_query(): failed to perform curl (28) The indicated error number (28) seems to suggest a timeout is occurring with curl, however examining a capture of network traffic when this happens shows that a http request is not sent from the server to the destination at all, usually attempting a second call results in everything working correctly. As stated its intermittent in its nature and so I cannot reliably trigger this issue, other than through sheer repetition, so any ideas as to what could be causing this issue would be gratefully received,

2 2

Async module taking down our server
by Will Ferrer 31 Jan '15

31 Jan '15

Hi All We are trying to use the async module to to delay sending a bye on from one end of the call to the other. We are using async_route(routename, seconds) to delay the WITHINDLG route. The idea is that in the future we want to be able to have our billing min duration enforced (though currently we are having issues with the dialog module that we are discussing in another thread). After running this on our deploy servers, the delays before sending on the byes get longer and longer, and then kamailio goes down. Then the receive udp buffer fills up. We tried it with both 4 and 400 async workers, and it made no difference. I am including a screen capture of the servers stats when this happens taken from voip monitor. Here are the relevant parts of the config: ... loadmodule "async.so" ... modparam("async", "workers", ASYNC_THREADS) ... request_route { ... route(DELAYED_BYE_STATIC); ... route[DELAYED_BYE_STATIC] { xlog("L_DEBUG","route DELAYED_BYE_STATIC"); #!ifdef WITH_DELAYED_BYE_STATIC if (is_method("BYE")) { xlog("L_DEBUG","route DELAYED_BYE_STATIC, from self \n"); #if (from_uri == myself) { if ((allow_trusted() || allow_source_address()) && from_uri == myself) { xlog("L_DEBUG","route DELAYED_BYE_STATIC, Bye detected, from self \n"); send_reply("200", "OK"); xlog("L_DEBUG","route DELAYED_BYE_STATIC, sent 200 about to sleep \n"); setflag(FLT_ACC); # do accounting ... setflag(FLT_ACCFAILED); # ... even if the transaction fails if (has_totag()) { xlog("L_DEBUG","route DELAYED_BYE_STATIC, sleeping to WITHINDLG_DELAYED \n"); async_route("WITHINDLG_DELAYED", MIN_DURATION); } else { xlog("L_DEBUG","route DELAYED_BYE_STATIC, sleeping to WITHINDLG \n"); async_route("WITHINDLG", MIN_DURATION); } xlog("L_DEBUG","route DELAYED_BYE_STATIC, slept\n"); exit; } } #!endif return; } ... route[WITHINDLG_DELAYED] { xlog("L_DEBUG", "route WITHINDLG_DELAYED: triggered \n"); $avp(was_delayed) = 1; route(WITHINDLG); } ... route[WITHINDLG] { xlog("L_DEBUG", "route WITHINDLG: will -- DLG triggered, request method: $rm \n"); #!ifdef WITH_DISPATCHER if(is_method("BYE|CANCEL")) { xlog("L_DEBUG","route WITHINDLG: cancel or bye detected, request method: $rm \n"); #!ifdef WITH_DISPATCHER_LOAD_AWARE xlog("L_DEBUG","route WITHINDLG: running ds_load_update, request method: $rm \n"); ds_load_update(); #dlg_get ("$ci","$ft","$tt"); #dlg_bye ("all"); #!endif } #!endif if (has_totag() || $avp(was_delayed) == 1) { xlog("L_DEBUG", "route WITHINDLG: will -- DLG has totag or was_delayed: $avp(was_delayed) \n"); # sequential request withing a dialog should # take the path determined by record-routing if (loose_route()) { xlog("L_DEBUG", "route WITHINDLG: will -- DLG has loose route \n"); route(DLGURI); if (is_method("BYE")) { xlog("L_DEBUG","route WITHINDLG: BYE detected"); setflag(FLT_ACC); # do accounting ... setflag(FLT_ACCFAILED); # ... even if the transaction fails xlog("L_DEBUG","route WITHINDLG: ACC flag set"); } else if ( is_method("ACK") ) { # ACK is forwarded statelessy route(NATMANAGE); } else if ( is_method("NOTIFY") ) { # Add Record-Route for in-dialog NOTIFY as per RFC 6665. record_route(); } xlog("L_DEBUG", "route WITHINDLG: will -- DLG RELAY 1\n"); route(RELAY); } else { xlog("L_DEBUG", "route WITHINDLG: will -- DLG else \n"); if (is_method("SUBSCRIBE") && uri == myself) { # in-dialog subscribe requests route(PRESENCE); exit; } if ( is_method("ACK") ) { xlog("L_DEBUG", "route WITHINDLG: will -- DLG is ack \n"); if ( t_check_trans() ) { xlog("L_DEBUG", "route WITHINDLG: will -- DLG t_check_trans \n"); # no loose-route, but stateful ACK; # must be an ACK after a 487 # or e.g. 404 from upstream server xlog("L_DEBUG", "route WITHINDLG: will -- DLG RELAY 2\n"); route(RELAY); exit; } else { # ACK without matching transaction ... ignore and discard exit; } } sl_send_reply("404","Not here"); } exit; } } ... Does any one know if this is a bug or a leak with in the async module, or perhaps something I am doing in my config? Thanks in advance for an assistance you can offer me. All the best. Will Ferrer Switchsoft

3 5

Dispatcher weight dont work
by Yuriy Gorlichenko 30 Jan '15

30 Jan '15

Hello I use dipatcher algorithm 8 that works with weight. I added 2 Asterisks and try to call its with my kam.We use 4.3 version. Tthis config select needed dst from database with my scenario. if(!ds_select_dst("$var(setid)", "8")) $var(setid)- is variable for setting setid that i get from database with my own scenario. IT does not matter. When running asterisk with weight 90 - all calls goes through it. When I starting asterisk with weight 10 -calls going through asterisk 90. When I shut down asterisk with weight 90 -calls goes through asterisk 10? but when i start asterisk weight 90 all calls goes through sterisk 10 until I shut down it. root@Kamailio:~# kamailio -v version: kamailio 4.3.0-dev3 (x86_64/linux) 8cdbe7 flags: STATS: Off, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, F_MALLOC, DBG_F_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 8cdbe7 compiled on 01:17:56 Jan 21 2015 with gcc 4.8.2 id setid destination flags priority attrs 1 2 sip:34.25.123.45:506000 0 weight=10 2 2 sip:10.0.1.6:506000 0weight=90 modparam("dispatcher", "db_url",DBURL) modparam("dispatcher", "table_name", "dispatcher") modparam("dispatcher", "setid_col", "setid") modparam("dispatcher", "destination_col", "destination") modparam("dispatcher", "force_dst", 1) modparam("dispatcher", "flags", 3) modparam("dispatcher", "dst_avp", "$avp(i:271)") modparam("dispatcher", "grp_avp", "$avp(i:272)") modparam("dispatcher", "cnt_avp", "$avp(i:273)") modparam("dispatcher", "ds_ping_from", "sip:proxy@10.0.1.1") modparam("dispatcher", "ds_ping_interval",15) modparam("dispatcher", "ds_probing_mode", 1) modparam("dispatcher", "ds_ping_reply_codes", "class=2;code=403;code=404;code=484;class=3") modparam("tm", "reparse_on_dns_failover", 0) Thanks

2 3

NDB_REDIS password to REDIS remote DB
by Yuriy Gorlichenko 30 Jan '15

30 Jan '15

Hello. I try to use NDB_REDIS with remote REDIS DB and can not to connect because remote DB use password, but Kamailio module have no any variable or attr of modparam that implenets password for DB. How I can connect to my REDIS?

3 5

why do not support tcp:eth1:5062，only support eht1:5062
by 张顺通 30 Jan '15

30 Jan '15

why do not support tcp:eth1:5062，only support eht1:5062? I need to bind on eth1 only tcp.

2 6

tls_port_no maybe do not work
by 张顺通 30 Jan '15

30 Jan '15

I set cfg like this: tls_port_no=9004 listen=bond0:9002 but result is: udp: 10.232.98.23 [10.232.98.23]:9002 tcp: 10.232.98.23 [10.232.98.23]:9002 tls: 10.232.98.23 [10.232.98.23]:9003

1 0

Wrong location entries when using usrloc with Mongo
by Mickael Marrache 30 Jan '15

30 Jan '15

Hi, I start with no location nor in Mongo, nor in memory. My UA registers successfully and I can see the location entry in Mongo. Then, I close my UA which unregisters (by setting Expires header to 0). Then, I open the app again and a new registration is made. The entry after first registration. Looks okay. { "_id" : ObjectId("54cb38f684e58133783f2b42"), "username" : "A", "contact" : "sip:A@192.168.1.3:54217;rinstance=DFAEBBC7;transport=tcp", "expires" : ISODate("2015-01-30T08:55:34Z"), "q" : -1, "callid" : "297EC55073A07BF78F0C05822A6CCDFB47E48705", "cseq" : 8809, "flags" : 0, "cflags" : 0, "user_agent" : "Acrobits Softphone Business/3.1", "received" : "sip:XXXXXXXXXXX:54217;transport=tcp", "path" : "<sip:XXXXXXXXXX;lr;received=sip:XXXXXXXXXXX:54217%3Btransport%3Dtcp>", "socket" : "udp:XXXXXXXXX:5060", "methods" : 4751, "last_modified" : ISODate("2015-01-30T07:55:34Z"), "ruid" : "uloc-54cb38df-3378-2", "instance" : null, "reg_id" : 0 } The same entry after un register (Expires 0). Note that the username field is missing. In any case, I expected the entry to be deleted. { "_id" : ObjectId("54cb38f684e58133783f2b42"), "expires" : ISODate("2015-01-30T08:56:51Z"), "q" : -1, "cseq" : 8811, "flags" : 0, "cflags" : 0, "user_agent" : "Acrobits Softphone Business/3.1", "received" : "sip: XXXXXXXXX:54217;transport=tcp", "path" : "<sip: XXXXXXXXX;lr;received=sip: XXXXXXXXX:54217%3Btransport%3Dtcp>", "socket" : "udp: XXXXXXXXX:5060", "methods" : 4751, "last_modified" : ISODate("2015-01-30T07:56:51Z"), "callid" : "297EC55073A07BF78F0C05822A6CCDFB47E48705", "instance" : null, "reg_id" : 0, "contact" : "sip:A@192.168.1.3:54217;rinstance=DFAEBBC7;transport=tcp" } The entries after second registration. The new entry looks okay. But, the old entry is still here. { "_id" : ObjectId("54cb38f684e58133783f2b42"), "expires" : ISODate("2015-01-30T08:56:51Z"), "q" : -1, "cseq" : 8811, "flags" : 0, "cflags" : 0, "user_agent" : "Acrobits Softphone Business/3.1", "received" : "sip: XXXXXXXXX:54217;transport=tcp", "path" : "<sip: XXXXXXXXX;lr;received=sip: XXXXXXXXX:54217%3Btransport%3Dtcp>", "socket" : "udp: XXXXXXXXX:5060", "methods" : 4751, "last_modified" : ISODate("2015-01-30T07:56:51Z"), "callid" : "297EC55073A07BF78F0C05822A6CCDFB47E48705", "instance" : null, "reg_id" : 0, "contact" : "sip:A@192.168.1.3:54217;rinstance=DFAEBBC7;transport=tcp" } { "_id" : ObjectId("54cb3a7884e581337a25b895"), "username" : "A", "contact" : "sip:A@192.168.1.3:54217;rinstance=DFAEBBC7;transport=tcp", "expires" : ISODate("2015-01-30T09:02:00Z"), "q" : -1, "callid" : "297EC55073A07BF78F0C05822A6CCDFB47E48705", "cseq" : 8813, "flags" : 0, "cflags" : 0, "user_agent" : "Acrobits Softphone Business/3.1", "received" : "sip: XXXXXXXXX:54217;transport=tcp", "path" : "<sip: XXXXXXXXX;lr;received=sip: XXXXXXXXX:54217%3Btransport%3Dtcp>", "socket" : "udp: XXXXXXXXX:5060", "methods" : 4751, "last_modified" : ISODate("2015-01-30T08:02:00Z"), "ruid" : "uloc-54cb38df-337a-1", "instance" : null, "reg_id" : 0 } The issue is the entry is not deleted after un registering. I precise that registrations are dispatched over multiple registrars with all accesses the same Mongo cluster. Thanks, Mickael

1 0

Can kamailio generate a PRACK
by Rahul MathuR 30 Jan '15

30 Jan '15

Hello, I was wondering whether Kamailio (as proxy) can generate a PRACK on its own ( since one of the custom written dialer is not sending PRACK) ? Is there any way I can achieve this ? -- Warm Regds. MathuRahul

2 1

Core dump while saving user location in mongo
by Mickael Marrache 30 Jan '15

30 Jan '15

Hi, When my proxy receives a REGISTER request, it crashes while saving the user location in MongoDB. This is the backtrace from the core dump: #0 0x0000003f08e32625 in raise () from /lib64/libc.so.6 #1 0x0000003f08e33e05 in abort () from /lib64/libc.so.6 #2 0x00000000006196f9 in fm_free (qm=0x7f4368bf7010, p=0x210add0, file=0x7f4367fd7608 "<core>: db_res.c", func=0x7f4367fd8100 "db_free_columns", line=86) at mem/f_malloc.c:588 #3 0x00007f4367fc37ab in db_free_columns (_r=0x7f4368ca0430) at db_res.c:86 #4 0x00007f4367fc479e in db_free_result (_r=0x7f4368ca0430) at db_res.c:134 #5 0x00007f4367da37cb in db_mongodb_free_result (_h=0x7f4368c94718, _r=0x7f4368ca0430) at mongodb_dbase.c:646 #6 0x00007f4367da5d65 in db_mongodb_query (_h=0x7f4368c94718, _k=0x7fffa03d5550, _op=0x0, _v=0x7fffa03d5510, _c=0x7fffa03d5560, _n=1, _nc=16, _o=0x7f4365ed2c80, _r=0x7fffa03d5508) at mongodb_dbase.c:783 #7 0x00007f4365cac7d2 in db_load_urecord (_c=0x7f4368c94718, _d=0x7f436154a0e8, _aor=0x7fffa03d59d0) at udomain.c:601 #8 0x00007f4365cb1e8e in get_urecord (_d=0x7f436154a0e8, _aor=0x7fffa03d59d0, _r=0x7fffa03d5760) at udomain.c:1106 #9 0x00007f4365a75dea in add_contacts (_m=0x7f4368cbdc40, _d=0x7f436154a0e8, _a=0x7fffa03d59d0, _mode=1, _use_regid=1) at save.c:832 #10 0x00007f4365a77d32 in save (_m=0x7f4368cbdc40, _d=0x7f436154a0e8, _cflags=4, _uri=0x0) at save.c:986 #11 0x00007f4365a606db in w_save2 (_m=0x7f4368cbdc40, _d=0x7f436154a0e8 "H\240TaC\177", _cflags=0x4 <Address 0x4 out of bounds>) at reg_mod.c:447 #12 0x000000000041d489 in do_action (h=0x7fffa03d6180, a=0x7f4368c71e98, msg=0x7f4368cbdc40) at action.c:1100 #13 0x0000000000429a7a in run_actions (h=0x7fffa03d6180, a=0x7f4368c71e98, msg=0x7f4368cbdc40) at action.c:1583 #14 0x000000000042a0df in run_actions_safe (h=0x7fffa03d7470, a=0x7f4368c71e98, msg=0x7f4368cbdc40) at action.c:1648 #15 0x0000000000540b7c in rval_get_int (h=0x7fffa03d7470, msg=0x7f4368cbdc40, i=0x7fffa03d6658, rv=0x7f4368c72830, cache=0x0) at rvalue.c:924 #16 0x0000000000544db4 in rval_expr_eval_int (h=0x7fffa03d7470, msg=0x7f4368cbdc40, res=0x7fffa03d6658, rve=0x7f4368c72828) at rvalue.c:1918 #17 0x00000000005451aa in rval_expr_eval_int (h=0x7fffa03d7470, msg=0x7f4368cbdc40, res=0x7fffa03d6ae0, rve=0x7f4368c72070) at rvalue.c:1926 #18 0x000000000041ce4e in do_action (h=0x7fffa03d7470, a=0x7f4368c73148, msg=0x7f4368cbdc40) at action.c:1064 #19 0x0000000000429a7a in run_actions (h=0x7fffa03d7470, a=0x7f4368c71cc0, msg=0x7f4368cbdc40) at action.c:1583 #20 0x0000000000419dea in do_action (h=0x7fffa03d7470, a=0x7f4368c3bdb8, msg=0x7f4368cbdc40) at action.c:712 #21 0x0000000000429a7a in run_actions (h=0x7fffa03d7470, a=0x7f4368c33898, msg=0x7f4368cbdc40) at action.c:1583 #22 0x000000000042a1a7 in run_top_route (a=0x7f4368c33898, msg=0x7f4368cbdc40, c=0x0) at action.c:1669 #23 0x000000000050747e in receive_msg ( buf=0xa6f780 "REGISTER sip:XXXXXXXXXXXX:5060;transport=tcp SIP/2.0\r\nVia: SIP/2.0/UDP XXXXXXXXX;branch=z9hG4bK242c.26de52a75c8675f6757e0958454a0ad5.0;i=1\r\nv: SIP/2.0/TCP XXXXXXXXXX:62051;received=XXXXXXXX"..., len=1004, rcv_info=0x7fffa03d7760) at receive.c:216 #24 0x0000000000606e76 in udp_rcv_loop () at udp_server.c:521 #25 0x00000000004a5c97 in main_loop () at main.c:1629 #26 0x00000000004aaf2a in main (argc=13, argv=0x7fffa03d7b78) at main.c:2561 I tested multiple times, it occurs everytime. Let me know if you need more information. Thanks, Mickael

2 6

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