sr-users July 2018

sr-users@lists.kamailio.org

84 participants
99 discussions

Kamailio, forking and multiple answer
by Marino Mileti 10 Jul '18

10 Jul '18

Hi guys, i've a Kamailio with forking scenario using addbranch technique.Now I've a problem; i know it's very very very rare but it could be possible so it's better for me to find a solution. A -> B,C,D in forking parallel mode, so B C and D rings simultaneulsy. What is happen if B anser the call, and at the same time C decline the call?It seems that, using my cfg scripts, C sends DECLINE but this message never arrive to A because it receives a 200OK of B. How I can prevent this? I would like that if DECLINE is the first message, all other answers will be ignored (first answer win). Any help or comment? ThanksMarino

2 1

TLS CRL configuration
by Amarnath Kanchivanam 10 Jul '18

10 Jul '18

Hi All, I'm trying to configured kamailio as TLS server with below configuration (tls.cfg) and TLS server is started successfully. [server:default] method = TLSv1+ verify_certificate = yes require_certificate = yes private_key = ./sip/server.key certificate = ./sip/server.crt ca_list = ./bundle.crt crl = ./sip_crl.pem verify_depth = 9 [client:default] verify_certificate = no require_certificate = no TLS connection works fine. Later i have updated the sip_crl.pem with server certificate revoked details and performed tls.reload command to load the latest update. After this I expect any TLS client trying to establish TLS connection should fail, as the client and server certificates are signed by same authority and server certificate is revoked. But the clients are able to establish TLS connection without any errors. I'm not getting any traces to confirm CRL validation has been performed before accepting the TLS connection. Any advice would be help to proceed with evaluating CRL functionality. -Amar

3 5

CPS
by Sergiu Pojoga 10 Jul '18

10 Jul '18

Hi folks, Trying to implement CPS throttling based on this <https://lists.kamailio.org/pipermail/sr-users/2013-September/079713.html>article, having some trouble. modparam("htable", "htable", "rhs=>size=32;initval=0;autoexpire=300;" modparam("htable", "htable", "rhm=>size=32;initval=0;autoexpire=1800;") route[CPS] { $var(rateHashSec) = $si+":sec:"+$timef(%Y/%m/%d_%H_%M_%S); $var(rateHashMin) = $si+":min:"+$timef(%Y/%m/%d_%H_%M_00); xlog("L_INFO", "var(rateHashSec)=$var(rateHashSec); var(rateHashMin)=$var(rateHashMin)\n"); $var(ratePerSec) = $shtinc(rhs=>$var(rateHashSec)); $var(ratePerMin) = $shtinc(rhm=>$var(rateHashMin)); xlog("L_INFO", "var(ratePerSec)=$var(ratePerSec); var(ratePerMin)=$var(ratePerMin)\n"); $var(limitPerSec) = 1; $var(limitPerMin) = 1; if ($var(ratePerSec) > $var(limitPerSec) || $var(ratePerMin) > $var(limitPerMin)) { xlog("L_INFO", "CPS Limit on IP $si\n"); send_reply("503", "CPS Limit on IP $si"); exit; } } Logs show hashes are created but *$var(ratePerSec/Min)* won't increment no matter how many calls I place per second or minute: Jul 9 14:35:52 proxy /usr/local/sbin/kamailio[1484]: INFO: <script>: var(rateHashSec)=65.39.XX.XX:sec:2018/07/09_14_35_52; var(rateHashMin)=65.39.XX.XX:min:2018/07/09_14_35_00 Jul 9 14:35:52 proxy /usr/local/sbin/kamailio[1484]: INFO: <script>: var(ratePerSec)=0; var(ratePerMin)=0 Much obliged. --Sergiu

2 3

Delay in 100 Trying response for INVITE when the load is 70 INVITE's per sec
by vivek＠advaitamtech.com 09 Jul '18

09 Jul '18

Hi All, When we are using the kamailio to handle around 70 INVITE's per second, kamailio is sending 100 Trying with the delay of around 3-4sec for few INVITE's. How can I reduce the delay in 100 Trying? Also, I tried increasing the number of threads for SIP routing processes. This doesnt seem to help. Also tried "modparam("tm", "auto_inv_100", 0)" . This is not working. Please help. Thank you, Vivek.

3 2

RTPEngine-Recording-daemon
by Mojtaba 09 Jul '18

09 Jul '18

Hello, In RTPEngine recording-daemon, I enabled "forward-to" option to unix_socket. All things work right, I got metadata at first, then media packets (RTP-UDP-IP). The metadata for each calls is received just at first packet, but i want to know, if i have more than one concurrent active call in RTPEngine, How can i distinct which media packet was from which call? Thanks with Regards. --Mojtaba Esfandiari.S

2 2

ul.add | path & socket not correctly set
by Laurent Schweizer 09 Jul '18

09 Jul '18

Dear all, I have kamailio 5.0.6 and I have an issue to add permanent location When I add a location with : kamcmd ul.add location_ch demo(a)peoplefone.ch sip: demo@95.128.80.122:5060 0 0.0 . 0 128 6111 . udp:95.128.80.3:5060 then I get the following insertion: kamcmd ul.lookup location_ch demo@ { AoR: demo Contacts: { Contact: { Address: sip:demo@95.128.80.122:5060 Expires: permanent Q: 0.000000 Call-ID: dfjrewr12386fd6-343(a)kamailio.mi CSeq: 1 User-Agent: SIP Router MI Server Received: [not set] Path: . State: CS_SYNC Flags: 0 CFlags: 128 Socket: [not set] Methods: 6111 Ruid: ulcx-5b243cb5-67c6-31 Instance: [not set] Reg-Id: 0 Server-Id: 0 Tcpconn-Id: 0 Keepalive: 0 Last-Keepalive: 0 Last-Modified: 0 } } As you can see the Path value is set to "." But it must be set to [not set] The Socket is also not set. Any idea ? BR Laurent

2 3

RFC: database unsigned number types
by Daniel-Constantin Mierla 07 Jul '18

07 Jul '18

Hello, starting here a discussion about an issue with the database API and signed/unsigned number type to see how to address it. So far, the database API supported only signed types for numbers, respectively DB1_INT (int in c) and DB1_BIGINT (long long in c). However, many database table columns are defined as UNSIGNED INT or UNSIGNED BIGINT. The database connector modules are mapping UNSIGED values retrieved from database over signed fields in DB API structure. The other way around is done as well: signed values are the inserted in the unsigned columns. There is no issue if the value in C is a positive number, however, if the value goes over MAX_UINT/2 (over 2147483647), it becomes negative and inserting the value in database results in an exception and 0 being stored instead. So far, I guess the issue was rarely exposed, if at all, because no report on it, even these data types for DB1 are since the SER project was started in 2001. As I looked at database definition schema, most of unsigned columns are for internal flags or ids (e.g., lcr_id), where I guess no large values were used or needed so far. However, it can bite at any time and needs to be addressed. So far, two solutions come in mind: 1) drop using UNSIGNED INT for those db columns, use only INT and do unsigned cast in the C code when reading and cast to int when writing. 2) update the db connector modules to support unsigned types -- I added support for them in DB API, but each db_* module has to be updated. The also each module that uses UNSIGNED DB columns must be updated 1) should be simpler, 2) more work but better in long term Any other ideas? Which of the options you prefer to go for? Not to forget: somehow related, probably we have to switch from int to long for PV number values, otherwise timestamp variables can go negative once unix timestamp approaches MAX_UINT/2 (still plenty of time, but should not be delayed for long ...). Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference -- www.kamailioworld.com

2 1

sdpops / keep_codecs_by_name not modifying sdp unless i call msg_apply_changes
by Enrico Bandiera 06 Jul '18

06 Jul '18

Hi, I'm encountering an issue where calling keep_codecs_by_name does not modify the SDP on the INVITE unless I call the "evil function" msg_apply_changes Any help is welcome, Thanks, Enrico.

2 2

rtpengine installation dependencies
by Aqs Younas 05 Jul '18

05 Jul '18

Greetings list. This might not be related to Kamailio but I thought someone would be able to give a hand in resolving dependency during the installation of rtpengine on Debian 8 Jessie. It is complaining about below dependencies. root@debian-769mb-miami-01:/usr/src/rtpengine# dpkg-buildpackage dpkg-buildpackage: source package ngcp-rtpengine dpkg-buildpackage: source version 6.3.0.0+0~mr6.3.0.0 dpkg-buildpackage: source distribution unstable dpkg-buildpackage: source changed by Sipwise Jenkins Builder < jenkins(a)sipwise.com> dpkg-buildpackage: host architecture amd64 dpkg-source --before-build rtpengine dpkg-source: info: using options from rtpengine/debian/source/options: --extend-diff-ignore=.gitreview dpkg-checkbuilddeps: *Unmet build dependencies: debhelper (>= 10~) libbcg729-dev* dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting dpkg-buildpackage: warning: (Use -d flag to override.) I tried to install debhelper from deb but complained from dh-autoreconf and that itself complained abount debhelpler. So, no one is being installed. Also, If someone can help me how to resolve dependency for libbcg729-dev too. Any pointer or hint or link to some installation guide would be more than welcome. Br, Aqs.

9 17

RTPEngine Recording does not work
by Mojtaba 05 Jul '18

05 Jul '18

Hi all, I installed RTPEngine (Version: 6.4.0.0+0~mr6.4.0.0 git-master-4eb80da) in my VM machine (Debian GNU/Linux 8 (jessie), i also installed kamailio 5.1. In kamailio routes, i have: route { ... #rtpengine_manage("record-call") rtpengine_manage(); start_recording(); ... } Here is all other configuration files: In /etc/default/ngcp-rtpengine-daemon file: RUN_RTPENGINE=yes CONFIG_FILE=/etc/rtpengine/rtpengine.conf CONFIG_SECTION=rtpengine PIDFILE=/var/run/ngcp-rtpengine-daemon.pid MANAGE_IPTABLES=yes TABLE=0 In /etc/default/ngcp-rtpengine-recording-daemon file: RUN_RTPENGINE_RECORDING=yes CONFIG_FILE=/etc/rtpengine/rtpengine-recording.conf CONFIG_SECTION=rtpengine-recording PIDFILE=/var/run/ngcp-rtpengine-recording-daemon.pid MUST_NFS=no NFS_HOST=192.168.1.1 NFS_REMOTE_PATH=/var/recordings NFS_LOCAL_MOUNT=/var/lib/rtpengine-recording # must match output-dir if used NFS_OPTIONS=hard,intr,tcp In /etc/rtpengine/rtpengine.conf file: [rtpengine] table = 0 interface = 192.168.122.200 listen-ng = 127.0.0.1:2223 recording-dir = /var/spool/rtpengine/ recording-method = proc In [rtpengine-recording] table = 0 # output-storage = db (use default) # output-format = mp3 (use default) # output-mixed = 1 spool-dir = /var/spool/rtpengine/metadata output-dir = /var/spool/rtpengine/recording But the recording is not work, I have these issues in syslog: [1530178531.860171] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Received command 'start recording' from 127.0.0.1:38654 [1530178531.860191] NOTICE: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Turning on call recording. [1530178531.860239] WARNING: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Call recording through /proc interface requested, but kernel table not open [1530178531.860262] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860269] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860275] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860281] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860287] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860292] ERR: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Failed to open recording metadata file '(null)' for writing: Bad address [1530178531.860303] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Replying to 'start recording' from 127.0.0.1:38654 (elapsed time 0.000112 sec) [1530178531.969040] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Received command 'start recording' from 127.0.0.1:39374 [1530178531.969069] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Replying to 'start recording' from 127.0.0.1:39374 (elapsed time 0.000004 sec) [1530178537.176906] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Received command 'delete' from 127.0.0.1:40258 [1530178537.177003] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Scheduling deletion of call branch '9052b05a' (via-branch '') in 30 seconds [1530178537.177026] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Replying to 'delete' from 127.0.0.1:40258 (elapsed time 0.000084 sec) [1530178537.178368] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Received command 'start recording' from 127.0.0.1:40258 [1530178537.178392] INFO: [MWFhMWM4MmVhYjFmYjY3MzVlZDlmZWMyYjNmNGVhNmY.]: Replying to 'start recording' from 127.0.0.1:40258 (elapsed time 0.000004 sec) ^C[1530178543.752740] INFO: Version 6.4.0.0+0~mr6.4.0.0 git-master-4eb80da shutting down Also when i start RTPEngine, I have FATAL error about module xt_RTPENGINEer in syslog: Jun 28 05:44:58 debian8 systemd[1]: Starting NGCP RTP/media Proxy Daemon... Jun 28 05:44:58 debian8 ngcp-rtpengine-iptables-setup[10203]: modprobe: FATAL: Module xt_RTPENGINE not found. Jun 28 05:44:58 debian8 ngcp-rtpengine-iptables-setup[10203]: iptables: No chain/target/match by that name. Jun 28 05:44:58 debian8 ngcp-rtpengine-iptables-setup[10203]: ip6tables: No chain/target/match by that name. Jun 28 05:44:58 debian8 systemd[1]: Started NGCP RTP/media Proxy Daemon. Jun 28 05:44:58 debian8 rtpengine[10219]: [1530179098.989322] INFO: Generating new DTLS certificate Jun 28 05:44:59 debian8 rtpengine[10219]: [1530179099.033499] ERR: FAILED TO CREATE KERNEL TABLE 0 (No such file or directory), KERNEL FORWARDING DISABLED J Let me know what is the problem and how can i solve it? -- --Mojtaba Esfandiari.S

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sr-users July 2018