sr-dev August 2019

sr-dev@lists.kamailio.org

17 participants
339 discussions

[kamailio/kamailio] topos module producing invalid SIP message (missing Via header) when handling 200 OK to OPTIONS request (#1350)

by George Diamantopoulos

Hello all, I've come across the following issue with topos on Kamailio 5.1.0-rc2. ### Description Kamailio acts as a proxy for asterisk instances residing in a private IP range. Asterisk's peers are configured with their public IP address or hostname, but asterisk will dispatch requests to them to kamailio instead (because kamailio's IP is set in outboundproxy option in peer definition). This works fine for INVITEs, but if qualify=yes is set for the peer, asterisk will send out OPTIONs to monitor these peers. If the topos module is loaded, 200 OK replies to these OPTIONs will be malformed when forwarded from kamailio to asterisk (no Via header present). Disabling the topos module will resolve this. ### Troubleshooting #### Reproduction Configure a peer in asterisk with outboundproxy option set to kamailio's IP address. Set qualify=yes. Adjust kamailio's default configuration so that OPTIONs to other hosts besides itself are routed. Change the following section in request_route: ``` if ($rU==$null) { # request with no Username in RURI sl_send_reply("484","Address Incomplete"); exit; } ``` to: ``` if ( ($rU==$null) && !(is_method("OPTIONS")) ) { # request with no Username in RURI sl_send_reply("484","Address Incomplete"); exit; } # Permit asterisk's monitoring using options if(is_method("OPTIONS") && uri!=myself) { route(RELAY); } ``` Enable and configure the topos module with database. #### SIP Traffic asterisk:5060 -> kamailio:5060 ``` OPTIONS sip:peer.domain.tld SIP/2.0 Via: SIP/2.0/UDP asterisk:5060;branch=z9hG4bK460330cf;rport Max-Forwards: 70 From: "asterisk" <sip:asterisk@domain.tld>;tag=as690c2406 To: <sip:peer.domain.tld> Contact: <sip:asterisk@asterisk:5060> Call-ID: 6548f43b2d8740122186bb0c6e72ac78(a)domain.tld CSeq: 102 OPTIONS User-Agent: myUA Date: Sun, 03 Dec 2017 00:39:38 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Content-Length: 0 ``` kamailio:5060 -> peer:5060 ``` OPTIONS sip:peer.domain.tld SIP/2.0 Via: SIP/2.0/UDP kamailio:5060;branch=z9hG4bK460330cf;rport Max-Forwards: 69 From: "asterisk" <sip:asterisk@domain.tld>;tag=as690c2406 To: <sip:peer.domain.tld> Contact: <sip:asterisk@asterisk:5060> Call-ID: 6548f43b2d8740122186bb0c6e72ac78(a)domain.tld CSeq: 102 OPTIONS User-Agent: myUA Date: Sun, 03 Dec 2017 00:39:38 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Content-Length: 0 ``` peer:5060 -> kamailio:5060 ``` SIP/2.0 200 OK Via: SIP/2.0/UDP kamailio;branch=z9hG4bKda8d.cc03bd2def8ad36e8c43f61ab31a636f.0;received=kamailio;rport=5060 From: "asterisk" <sip:asterisk@domain.tld>;tag=as690c2406 To: <sip:peer.domain.tld>;tag=as472874ee Call-ID: 6548f43b2d8740122186bb0c6e72ac78(a)domain.tld CSeq: 102 OPTIONS Server: myUA Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Contact: <sip:peer:5060> Accept: application/sdp Content-Length: 0 ``` **kamailio:5060 -> asterisk:5060: Missing Via Header** ``` SIP/2.0 200 OK From: "asterisk" <sip:asterisk@domain.tld>;tag=as690c2406 To: <sip:peer.domain.tld>;tag=as472874ee Call-ID: 6548f43b2d8740122186bb0c6e72ac78(a)domain.tld CSeq: 102 OPTIONS Server: myUA Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Contact: <sip:peer:5060> Accept: application/sdp Content-Length: 0 ``` ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.1.0-rc2 (x86_64/linux) flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, 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: unknown compiled with gcc 6.3.0 ``` * **Operating System**: ``` Debian 9.1 ``` * **Other pertinent configuration information**: This kamailio box has several network interfaces. mhomed is not used, instead force_send_socket is called where necessary. I'm mentioning this in case it's what might trigger this issue with topos. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/1350

3 years, 2 months

[kamailio/kamailio] db_redis: add support for native redis cluster (#1997)

by George Diamantopoulos

The db_redis module seems to only support connecting with a single redis instance. It is not evident from the documentation if it implements support for native redis cluster by honouring 'MOVED' replies. ndb_redis seems to have support for native redis clusters, and supports both automatic (see allow_dynamic_nodes parameter of ndb_redis) and manual configuration of redis nodes. Since both modules are based on the hiredis library, is it safe to assume this support could be easily implemented, with some code sharing between the two modules perhaps? If db_redis supports clusters with automatic configuration only (by processing MOVED replies), perhaps the module's documentation should be updated to reflect that. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/1997

3 years, 3 months

[kamailio/kamailio] Wrong Record-Route and Via header fields when TCP is used (#2033)

by leonid-xorcom

### Description Kamailio server has two legs that are connected to different networks. I'm using Kamailio v.5.2.3 and the "enable_double_rr" is implicitly set to "1". The leg "A" IP address is 10.28.80.1 The leg "B" IP address is 192.168.9.103 The call is initiated from 10.28.80.47 According to the "rr" module documentation, function record_route() should insert two "Record_Route" header fields when a request is accepted on one leg is should go out via the second leg. This works as expected in case of UDP protocol: INVITE sip:2601@192.168.0.178:49162;transport=udp SIP/2.0 Record-Route: <sip:192.168.9.103;r2=on;lr;did=e2c.a191> Record-Route: <sip:10.28.80.1;r2=on;lr;did=e2c.a191> Via: SIP/2.0/UDP 192.168.9.103;branch=z9hG4bKcfa5.d64ecbd87d5315b5993c4ccf16f86537.0 Via: SIP/2.0/UDP 10.28.80.47:5060;rport=5060;branch=z9hG4bK3a9e9a4d But when the TCP protocol is used AND "listen" parameters are defined: listen=udp:10.28.80.1:5060 listen=tcp:10.28.80.1:5060 listen=udp:192.168.9.103:5060 listen=tcp:192.168.9.103:5060 then the outbound message looks like this: INVITE sip:2601@192.168.0.178:48758;transport=tcp SIP/2.0 Record-Route: <sip:10.28.80.1;transport=tcp;lr;did=bcd.72f> Via: SIP/2.0/TCP 10.28.80.1;branch=z9hG4bKb9ca.26ea08654c9dbc32bb0dc6e3b6f92d45.0;i=3 Via: SIP/2.0/TCP 10.28.80.47:5060;rport=33976;branch=z9hG4bK5291fab1 There are two problems there: a) only one Record-Route with leg "A" is inserted b) the added "Via" header field contains the leg "A" IP address instead of expected leg "B" IP address (192.168.9.103). In the LAN trace, I see that in reality the message was sent from leg "B". IMPORTANT: The problem occurs only when the "listen" parameters are defined in the Kamailio configuration. When the "listens" are not configured then everything works correctly. ### Troubleshooting #### Reproduction #### Debugging Data #### Log Messages http://updates.xorcom.com/~xorcom/kam-tcp-problem.tar.gz The archive contains the following files: * syslog-bad.log and bad.cap - Kamailio log and tcpdump trace of a call when the problem occurs * syslog-good.log and good.cap - Kamailio log and tcpdump trace of a call when the problem doesn't occur #### SIP Traffic ### Possible Solutions ### Additional Information kamailio -v version: kamailio 5.2.3 (x86_64/linux) 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_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled with gcc 7.3.0 ***Operating System**: Ubuntu 18.0.4 -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2033

3 years, 7 months

[kamailio/kamailio] Expand the list of required default 3rd party libraries for Kamailio (#969)

by Olle E. Johansson

(from devmeeting #Fosdem) - adding new dependencies as core dependencies - Curl - libssl - uuid - libunistring - libxml2 Any other candidates? They have to be libraries that are commonly installed on most Linux/Unix system. This would mean that a lot of more modules will be built by default, like TLS, HTTP_CLIENT, WEBSOCKET. We may also look over the names of the packages/groups for the build system and linux distros -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/969

4 years

[kamailio/kamailio] topos module seems to break re-SUBSCRIBE routing to downstream destinations (#1724)

by George Diamantopoulos

### Description Kamailio seems to fail to properly route in-dialog SUBSCRIBE with the topos module enabled. In this configuration, SUBSCRIBEs are expected to be delivered to a downstream UAS, an asterisk instance in the internal network. record_route() is executed for all initial requests, including SUBSCRIBEs. Routing is performed correctly with the topos module disabled, no other modifications were needed.  ### Troubleshooting I haven't been able to work around this issue in any other way other than disabling the topos module. #### Reproduction The configuration used is a heavily modified version of the example configuration file, but the handling of SUBSCRIBEs is generally simple. The initial SUBSCRIBE is subject to some tests, the R-URI is edited and dispatched to a farm of asterisk servers based on some criteria. Record Routing is enforced, so subsequent in-dialog re-SUBSCRIBEs are expected to be routed with loose_route(), which doesn't seem to handle things properly.  #### Debugging Data I'm attaching kamailio logs with debug=4, cfg_trace  #### Log Messages See attachments  #### SIP Traffic Please see: https://www.cloudshark.org/captures/d2643aae7f2a  ### Possible Solutions Using topoh instead for topos, but unfortunately this will break communication for other reasons (messages too large/UDP fragmentation for some peers). ### Additional Information * **Kamailio Version** Tried with kamailio 5.1.6 and kamailio 5.3.0-dev0 deb.kamailio.org repositories were used to acquire binaries for both versions * **Operating System**: Debian Stretch  [resubscribe.log](https://github.com/kamailio/kamailio/files/2586440/resubsc… -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/1724

4 years, 1 month

[kamailio/kamailio] uri_restore_rcv_alias() tried twice for local request (#2014)

by Alex Hermann

### Description While debugging an issue with locally generated in-dialog requests I stumbled upon some weirdness with the alias functionality from the nathelper module. The dialog modules tries to handle an alias parameter when sending an in-dialog request by calling ```uri_restore_rcv_alias()``` in the function ```build_dlg_t()```. A few instructions later, the same is attempted by the tm module in the function ```req_within()```. It seems to me that the attempt by the dialog module is redundant and can be removed. And while at it, IMHO it should be removed from the tm module too. This is functionality introduced by the nathelper module. Nowhere in the documentation it is mentioned there is some automatic handling of the alias parameter. If handling is needed for local requests, the script writer can call ```handle_uri_alias()``` from within local_route. If the functionality has to stay, may I suggest that the code in the nathelper module makes use of the ```uri_restore_rcv_alias()``` function instead of having its own duplicate implementation. Less maintenance, easier debugging. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2014

4 years, 1 month

[kamailio/kamailio] rtpengine: stats for rtpengine command and reply from rtpengine (#1699)

by Surendra Tiwari

### Description rightnow, there is no stats about command sent to rtpengine and getting reply from rtpengine. There should be a stats that will tell that number of offer request sent: number of answer request sent: number of delete request sent: number of failed request for offer [after retry]: number of failed request for answer [after retry]: number of failed request for delete [after retry]: This will help to identify actual number of failed request.  ### Troubleshooting #### Reproduction  #### Debugging Data  ``` (paste your debugging data here) ``` #### Log Messages  ``` (paste your log messages here) ``` #### SIP Traffic  ``` (paste your sip traffic here) ``` ### Possible Solutions  ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` (paste your output here) ``` * **Operating System**:  ``` (paste your output here) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/1699

4 years, 1 month

[kamailio/kamailio] 100% CPU usage after NTP date update (#2046)

by Benjamin Marty

#### Reproduction Install newest Kamailio 5.2. Change date e.g. 2 Years into the future. (Make sure you have no daemon running which prohibits those operations): ``` sudo date -s "2014-12-25 $(date +%H:%M:%S)" ``` ``` sudo date -s "2016-12-25 $(date +%H:%M:%S)" ``` Kamailio now uses the whole CPU to do stuff: ``` top - 08:10:35 up 14 days, 1:29, 2 users, load average: 3.77, 1.83, 1.05 Tasks: 212 total, 11 running, 201 sleeping, 0 stopped, 0 zombie %Cpu(s): 95.9 us, 1.5 sy, 2.2 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.4 si, 0.0 st MiB Mem : 926.1 total, 116.3 free, 382.5 used, 427.3 buff/cache MiB Swap: 100.0 total, 40.4 free, 59.6 used. 423.4 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 13264 root 20 0 89720 3944 2676 R 44.9 0.4 0:05.15 kamailio 13266 root 20 0 89720 4000 2736 R 37.3 0.4 0:04.63 kamailio 13267 root 20 0 89720 4912 3488 R 36.0 0.5 0:04.37 kamailio 13270 root 20 0 89720 4540 3240 R 36.0 0.5 0:05.85 kamailio 13269 root 20 0 89720 4000 2736 R 34.7 0.4 0:04.81 kamailio 13265 root 20 0 89720 3944 2680 R 34.4 0.4 0:04.61 kamailio 13261 root 20 0 89720 3952 2676 R 32.2 0.4 0:04.44 kamailio 13262 root 20 0 89720 3944 2676 R 31.8 0.4 0:04.72 kamailio 13256 root 20 0 89720 4752 3540 R 30.3 0.5 0:07.04 kamailio 13268 root 20 0 89720 4000 2736 R 30.3 0.4 0:04.49 kamailio 18021 root 20 0 40116 11884 5728 D 13.7 1.3 0:01.11 apt-get ``` There are multiple mailing list entries regarding this issue: https://lists.kamailio.org/pipermail/sr-users/2015-October/090465.html https://lists.kamailio.org/pipermail/sr-users/2015-November/090487.html https://lists.kamailio.org/pipermail/sr-users/2019-June/105967.html https://lists.kamailio.org/pipermail/sr-users/2019-August/106428.html I was able to get rid of the issue with uncommenting the mentioned part of the code. But I'm quite sure that's not a fix :) ![image](https://user-images.githubusercontent.com/11159719/63680341-b6d67880-c7f3-11e9-825b-529e7ec26b2e.png) -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2046

4 years, 1 month

[kamailio/kamailio] Can't install kamailio-sipcapture-daemon-config package due to missing dependency (#1861)

by pwakano

kamailio-sipcapture-daemon-config can't be installed because it depends on the kamailio-sipcapture package, which can't be found...  Use the http://download.opensuse.org/repositories/home:/kamailio:/v5.2.x-rpms/CentO… repo and try to install the kamailio-sipcapture-daemon-config. The dependency can't be resolved and so the package does not install. It is not clear if the dependency is missing or if it is not valid. ``` # yum install kamailio-sipcapture-daemon-config Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.optus.net * epel: mirror.optus.net * extras: mirror.intergrid.com.au * updates: mirror.intergrid.com.au Resolving Dependencies --> Running transaction check ---> Package kamailio-sipcapture-daemon-config.x86_64 0:5.2.1-1.el7.centos will be installed --> Processing Dependency: kamailio-sipcapture = 5.2.1 for package: kamailio-sipcapture-daemon-config-5.2.1-1.el7.centos.x86_64 --> Finished Dependency Resolution Error: Package: kamailio-sipcapture-daemon-config-5.2.1-1.el7.centos.x86_64 (home_kamailio_v5.2.x-rpms) Requires: kamailio-sipcapture = 5.2.1 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest # yum deplist kamailio-sipcapture-daemon-config Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.optus.net * epel: mirror.optus.net * extras: mirror.intergrid.com.au * updates: mirror.intergrid.com.au package: kamailio-sipcapture-daemon-config.x86_64 5.2.1-1.el7.centos dependency: /bin/sh provider: bash.x86_64 4.2.46-31.el7 dependency: kamailio-sipcapture = 5.2.1 Unsatisfied dependency ```      * **Operating System**:  ``` # uname -a Linux voice-conn-kamailio-1 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux # cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/1861

4 years, 2 months

[kamailio/kamailio] topos/topos_redis canceled and failed calls not deleted in redis (#2012)

by ohammami

### Description `topos-redis` does not clean entries for failed and canceled calls. modules are loaded in this order: ``` ... loadmodule "topos.so" loadmodule "ndb_redis.so" loadmodule "topos_redis.so" # ----- ndb_redis params ----- modparam("ndb_redis", "server", "name=srvC;addr=REDIS_HOST;port=REDIS_PORT;db=REDIS_DB_TOPOS") # ----- topos params ----- modparam("topos", "storage", "redis") modparam("topos_redis", "serverid", "srvC") modparam("topos", "mask_callid", 0) modparam("topos", "sanity_checks", 0) modparam("topos", "branch_expire", 30) modparam("topos", "dialog_expire", 14400) modparam("topos", "clean_interval", 10) ... ``` When a call is answered the timer are working fine and the records are cleaned after branch_expire timer. 1. call established ``` 10.0.1.11:6379[9]> KEYS * 1) "b:x:z9hG4bKe33b.1c2d440696a8e6d47f678fcf80962608.0" 2) "d:z:atpsh-5d305fc4-51c0-1" 3) "b:x:INVITE:6cbb3f3c-0470-474a-90e9-1d3f07d42a1a:as32b06c60" ``` 2. after 30s ``` 10.0.1.11:6379[9]> KEYS * 1) "d:z:atpsh-5d305fc4-51c0-1" ``` 4. call ends ``` 10.0.1.11:6379[9]> KEYS * 1) "b:x:z9hG4bKa4f4.d283ab69d26e3eadea338bb3cc28860e.0" 2) "d:z:atpsh-5d305fc4-51c0-1" ``` 5. after 30s ``` 10.0.1.11:6379[9]> KEYS * (empty list or set) ``` #### Issue description When the call fails or it's canceled ``` 10.0.1.11:6379[9]> KEYS * 1) "b:x:z9hG4bK6b04.0b594f71aba72f5f7f6f3ca8d7e57f04.0" 2) "d:z:atpsh-5d305fc4-51c3-1" 3) "b:x:INVITE:0319e114-c5b9-4dfc-91f0-392dc4239255:as018c9b6b" ``` after 30s ``` 10.0.1.11:6379[9]> KEYS * 1) "d:z:atpsh-5d305fc4-51c3-1" 10.0.1.11:6379[9]> TTL "d:z:atpsh-5d305fc4-51c3-1" (integer) 14319 ``` The record `d:z:atpsh-5d305fc4-51c3-1` is not cleaned by the cancel or busy...it will persist in the redis until it expires. I upgraded my machine from 5.1.3 to 5.1.8 after finding this fix #1608 which I noticed in the beginning. ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.1.8 (x86_64/linux) c7a172 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_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: c7a172 compiled on 05:42:57 Jun 19 2019 with gcc 4.8.5 ``` * **Operating System**: ``` 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Lin ``` ``` CentOS Linux release 7.4.1708 (Core) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2012

4 years, 3 months

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sr-dev August 2019