sr-dev December 2019

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19 participants
280 discussions

[kamailio/kamailio] Continued OpenSSL 1.1 crashes with 5.3.0 (#2121)
by Nathan Whitehorn 05 May '20

05 May '20

### Description After upgrading to 5.3.0 from 5.2.2 (standard packages on FreeBSD 12.0), I am experiencing intermittent crashes related to handling of BYE messages. ### Troubleshooting #### Reproduction This happens ~ weekly and I have not found a good way to reproduce it. #### Debugging Data An example backtrace is below from the last dumped core (the SIGSEGV one); unfortunately it overwrote the earlier one: ``` * thread #1, name = 'kamailio', stop reason = signal SIGSEGV * frame #0: 0x00000008009c5b79 libc.so.7`___lldb_unnamed_symbol403$$libc.so.7 + 41 frame #1: 0x00000008009ed63e libc.so.7`__free + 990 frame #2: 0x000000080271562b libthr.so.3`pthread_rwlock_destroy + 59 frame #3: 0x0000000802bedbf6 libcrypto.so.111`CRYPTO_THREAD_lock_free + 22 frame #4: 0x0000000802aef3c4 libcrypto.so.111`RSA_free + 100 frame #5: 0x0000000802b10c32 libcrypto.so.111`EVP_PKEY_free + 66 frame #6: 0x000000080296ed86 libssl.so.111`___lldb_unnamed_symbol646$$libssl.so.111 + 134 frame #7: 0x000000080295f93c libssl.so.111`SSL_CTX_free + 236 frame #8: 0x00000008028aee42 tls.so`tls_free_domain + 114 frame #9: 0x00000008028af1d7 tls.so`tls_free_cfg + 199 frame #10: 0x00000008028af2df tls.so`tls_destroy_cfg + 191 frame #11: 0x00000008028ad1f1 tls.so`destroy_tls_h + 1185 frame #12: 0x000000000041adea kamailio`destroy_tls + 26 frame #13: 0x00000000002e36fd kamailio`cleanup + 269 frame #14: 0x00000000002eb5b7 kamailio`___lldb_unnamed_symbol5$$kamailio + 1351 frame #15: 0x00000000002ea5e5 kamailio`handle_sigs + 21669 frame #16: 0x00000000002fb83e kamailio`main_loop + 40014 frame #17: 0x0000000000307d2b kamailio`main + 50267 frame #18: 0x00000000002e311b kamailio`_start + 283 ``` This is with OpenSSL 1.1 With the LD_PRELOAD hack to 5.2.2, things were completely stable; I am trying to use kamailio without the LD_PRELOAD'ed mutex wrapper now, which I believe is no longer required. It looks like the SSL-related stuff in the TLS crash (which was 5 minutes later!) is unrelated to the initial problem and may just be an artifact of one of the kamailio processes crashing earlier. #### Log Messages ``` Nov 2 08:11:31 home /usr/local/sbin/kamailio[94702]: CRITICAL: {1 527440 BYE 973470944-5061-16392(a)BA.A.B.I} <core> [core/mem/q_malloc.c:149]: qm_debug_check_frag(): BUG: qm: prev. fragm. tail overwritten(c0c0c000, abcdefed)[0x801544c58:0x801544c90]! Memory allocator was called from core: core/action.c:754. Fragment marked by core: core/dset.c:733. Exec from core/mem/q_malloc.c:504. Nov 2 08:13:41 home /usr/local/sbin/kamailio[94703]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 22 Nov 2 08:13:41 home kernel: pid 94702 (kamailio), uid 0: exited on signal 6 (core dumped) Nov 2 08:13:41 home /usr/local/sbin/kamailio[94692]: ALERT: <core> [main.c:767]: handle_sigs(): child process 94702 exited by a signal 6 Nov 2 08:13:41 home /usr/local/sbin/kamailio[94692]: ALERT: <core> [main.c:770]: handle_sigs(): core was generated Nov 2 08:14:56 home login[8284]: ROOT LOGIN (root) ON ttyu0 Nov 2 08:16:26 home kernel: pid 94692 (kamailio), uid 0: exited on signal 11 (core dumped) ``` I had an identical problem a week ago, also with a crash on a BYE for an active call: ``` Oct 27 13:00:02 home /usr/local/sbin/kamailio[79819]: CRITICAL: {1 598425 BYE 649761149-5061-291(a)BA.A.B.I} <core> [core/mem/q_malloc.c:149]: qm_debug_check_frag(): BUG: qm: prev. fragm. tail overwritten(c0c0c000, abcdefed)[0x801551808:0x801551840]! Memory allocator was called from core: core/action.c:754. Fragment marked by core: core/dset.c:733. Exec from core/mem/q_malloc.c:504. Oct 27 13:02:09 home /usr/local/sbin/kamailio[79820]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 22 Oct 27 13:02:09 home kernel: pid 79819 (kamailio), uid 0: exited on signal 6 (core dumped) Oct 27 13:02:09 home /usr/local/sbin/kamailio[79809]: ALERT: <core> [main.c:767]: handle_sigs(): child process 79819 exited by a signal 6 Oct 27 13:02:09 home /usr/local/sbin/kamailio[79809]: ALERT: <core> [main.c:770]: handle_sigs(): core was generated Oct 27 13:04:55 home kernel: pid 79809 (kamailio), uid 0: exited on signal 11 (core dumped) ``` ### Possible Solutions  ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.3.0 (x86_64/freebsd) 4cc67a flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, 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, select, kqueue. id: 4cc67a compiled on 18:51:34 Oct 25 2019 with cc 6.0 ``` * **Operating System**: FreeBSD 12.0 ``` FreeBSD home.XXX 12.0-RELEASE-p10 FreeBSD 12.0-RELEASE-p10 GENERIC amd64 ``` -- 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/2121

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[kamailio/kamailio] [Feature Request] Python3 compatibility for dbtextdb (#1747)
by Anthony Messina 04 May '20

04 May '20

kamctl's dbtextdb.py fails to build in a Python3-only environment. Update dbtextdb to Python3. -- 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/1747

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[kamailio/kamailio] db_redis: warning: 'table_name.len' may be used uninitialized (#2169)
by sergey-safarov 23 Apr '20

23 Apr '20

``` CC (gcc) [M db_redis.so] redis_table.o CC (gcc) [M db_redis.so] db_redis_mod.o CC (gcc) [M db_redis.so] redis_connection.o In file included from ../../lib/srdb1/../../core/ut.h:42, from ../../lib/srdb1/db_key.h:31, from ../../lib/srdb1/db.h:43, from db_redis_mod.h:26, from redis_table.c:25: redis_table.c: In function 'db_redis_parse_keys': ../../lib/srdb1/../../core/dprint.h:303:8: warning: 'table_name.len' may be used uninitialized in this function [-Wmaybe-uninitialized] 303 | fprintf(stderr, "%2d(%d) %s: %.*s%s" fmt, \ | ^~~~~~~ redis_table.c:494:9: note: 'table_name.len' was declared here 494 | str table_name; | ^~~~~~~~~~ In file included from ../../lib/srdb1/../../core/ut.h:42, from ../../lib/srdb1/db_key.h:31, from ../../lib/srdb1/db.h:43, from db_redis_mod.h:26, from redis_table.c:25: ../../lib/srdb1/../../core/dprint.h:303:8: warning: 'table_name.s' may be used uninitialized in this function [-Wmaybe-uninitialized] 303 | fprintf(stderr, "%2d(%d) %s: %.*s%s" fmt, \ | ^~~~~~~ redis_table.c:494:9: note: 'table_name.s' was declared here 494 | str table_name; | ^~~~~~~~~~ redis_table.c:581:38: warning: 'table' may be used uninitialized in this function [-Wmaybe-uninitialized] 581 | table->types = type_target = type; | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ CC (gcc) [M db_redis.so] redis_dbase.o make[3]: 'libsrdb2.so.1.0' is up to date. make[3]: 'libsrdb1.so.1.0' is up to date. ``` -- 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/2169

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[kamailio/kamailio] Kamailio 5.3.0 crashed when exec module tried to execute external program (#2165)
by Konstantin 22 Apr '20

22 Apr '20

### Description  In some cases we need to call zabbix_sender utility to notify that some failure happens. At this time we move our configs from Kamailio 4.4.7 to Kamailio 5.3.0 and during testing we meet this issue. We configured exec module to kill the program after 20 seconds ``` modparam("exec", "time_to_kill", 20) .... exec_avp("/usr/bin/zabbix_sender --config ZABBIX_AGENT_CONFIG_PATH --key ecsp_no_telephony --value 1"); ``` zabbix_sender could not connect to server and were hanged up. Kamailio probably tried to kill it and crashed. ### Troubleshooting #### Reproduction  #### Debugging Data  ``` Dec 5 12:25:08 sip-proxy01 /usr/ecsp/sbin/kamailio[12458]: NOTICE: <script>: zabbix_sender (ecsp_no_telephony) Dec 5 12:25:09 sip-proxy01 /usr/ecsp/sbin/kamailio[12417]: ALERT: <core> [main.c:767]: handle_sigs(): child process 12458 exited by a signal 11 Dec 5 12:25:09 sip-proxy01 /usr/ecsp/sbin/kamailio[12466]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 50 Dec 5 12:25:09 sip-proxy01 /usr/ecsp/sbin/kamailio[12417]: ALERT: <core> [main.c:770]: handle_sigs(): core was generated ``` #### SIP Traffic  ``` (paste your sip traffic here) ``` ### Possible Solutions  ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.3.0 (x86_64/linux) 4cc67a flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, 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: 4cc67a compiled on 14:01:24 Nov 28 2019 with gcc 4.8.5 ``` * **Operating System**:  ``` Linux sip-proxy01 3.10.0-1062.4.1.el7.x86_64 #1 SMP Fri Oct 18 17:15:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux CentOS Linux release 7.7.1908 (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/2165

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[kamailio/kamailio] TLS module compiled with outdated OpenSSL version for Ubuntu bionic (#2018)
by welljsjs 14 Apr '20

14 Apr '20

### Description  Ubuntu Bionic 18.04.02 LTS ships with "OpenSSL 1.1.1 11 Sep 2018" (0x1010100f), whereas the `kamailio-tls-modules` package is compiled with "OpenSSL 1.1.0g 2 Nov 2017" (0x1010007f). I installed Kamailio from the Kamailio repositories (not from the Ubuntu repositories). This leads to Kamailio being unable to start as it complains about the OpenSSL versions being too different from each other. Overriding the OpenSSl version check by enabling `tls_force_run` does not solve the issue, instead, it leads to Kamailio emitting multiple errors.  #### Reproduction I installed Kamailio from the official Kamailio apt sources (nightly build, the same occurs for the latest stable version 5.2). ``` deb http://deb.kamailio.org/kamailiodev-nightly bionic main deb-src http://deb.kamailio.org/kamailiodev-nightly bionic main ``` I enabled TLS and edited the configuration files accordingly.    ``` (paste your debugging data here) ``` #### Log Messages ``` CRITICAL: tls [tls_init.c:677]: init_tls_h(): installed openssl library version is too different from the library the kamailio tls module was compiled with: installed "OpenSSL 1.1.1 11 Sep 2018" (0x1010100f), compiled "OpenSSL 1.1.0g 2 Nov 2017" (0x1010007f).#012 Please make sure a compatible version is used (tls_force_run in kamailio.cfg will override this check) ```  ### Possible Solutions Recompile and publish the `kamailio-tls-modules` package compiled with OpenSSL 1.1.1b. ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.3.0-dev6 (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_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**:  ``` Linux hostname 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Description: Ubuntu 18.04.2 LTS Release: 18.04 ``` -- 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/2018

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[kamailio/kamailio] Support for 192.0.0.0/29 as NATed source (#1488)
by dtryba 07 Apr '20

07 Apr '20

#### Pre-Submission Checklist    - [ ] Commit message has the format required by CONTRIBUTING guide - [ ] Commits are split per component (core, individual modules, libs, utils, ...) - [ ] Each component has a single commit (if not, squash them into one commit) - [ ] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated) #### Type Of Change - [X] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality) #### Checklist:  - [X] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description  192.0.0.0/29 is a reserved subnet for NATtin IPv4 across an IPv6 netwerk. For example Dual Stack Lite carrier grade NAT. This is small change and updates the subnets used for NAT according to https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-speci… You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/1488 -- Commit Summary -- * Support for -- File Changes -- M src/modules/ipops/detailed_ip_type.c (1) M src/modules/ipops/detailed_ip_type.h (2) M src/modules/nat_traversal/nat_traversal.c (3) M src/modules/nathelper/nathelper.c (1) -- Patch Links -- https://github.com/kamailio/kamailio/pull/1488.patch https://github.com/kamailio/kamailio/pull/1488.diff -- 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/pull/1488

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[kamailio/kamailio] app_python warning about strict-aliasing (#1249)
by Daniel-Constantin Mierla 12 Mar '20

12 Mar '20

Tracking here the issue exposed by @linuxmaniac via PR #924, as it was merged and then reverted (by #1248), so anyone can be aware of as well as comment/propose solutions for it. > Add "-fno-strict-aliasing" to compilation flags > > Fixes a slew of: > "dereferencing type-punned pointer will break strict-aliasing rules" > warnings from GCC for lines of the form: > Py_INCREF(Py_True); > and > Py_INCREF(Py_False); > > due to the cast from PyIntObject* to PyObject* > > GCC is technically correct here; see: > http://www.python.org/dev/peps/pep-3123/ > though this is unlikely to lead to non-working machine code. The initial proposed patch for `src/modules/app_python/Makefile` is: ``` @@ -22,6 +22,8 @@ ifeq ($(OS), freebsd) LIBS+=-pthread endif +# python2 https://www.python.org/dev/peps/pep-3123/ +DEFS+=-fno-strict-aliasing DEFS+=-I${PYTHON_INCDIR} DEFS+=-DKAMAILIO_MOD_INTERFACE ``` -- 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/1249

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[kamailio/kamailio] Kamailio SDP Error 5.1.8 (#1983)
by nicoonline 09 Mar '20

09 Mar '20

Hello, I got this message under some circumstances (the number called) Jun 12 15:15:01 proxy1 /usr/sbin/kamailio[16096]: ERROR: <core> [core/parser/sdp/sdp.c:228]: set_sdp_payload_fmtp(): Invalid payload location What means "Payload location" ? SDP Debug from the callee: Jun 12 15:15:01 proxy1 /usr/sbin/kamailio[16096]: DEBUG: sdpops [sdpops_mod.c:1626]: sdp_get_helper(): Found SDP v=0#015#012o=- 5793 1 IN IP4 192.168.50.50#015#012s=-#015#012t=0 0#015#012m=audio 24734 RTP/AVP 8 101#015#012c=IN IP4 217.112.190.117#015#012a=rtpmap:101 telephone-event/8000#015#012a=fmtp:18 annexa=yes#015#012a=fmtp:101 0-15#015#012a=ptime:30#015#012a=silenceSupp:off - - - -#015#012a=sendrecv#015#012 SDP Debug called pbx: Jun 12 15:15:01 proxy1 /usr/sbin/kamailio[16097]: DEBUG: sdpops [sdpops_mod.c:1626]: sdp_get_helper(): Found SDP v=0#015#012o=root 1673681431 1673681431 IN IP4 217.112.180.5#015#012s=Asterisk PBX 11.25.1#015#012c=IN IP4 217.112.180.5#015#012t=0 0#015#012m=audio 10884 RTP/AVP 8 101#015#012a=rtpmap:8 PCMA/8000#015#012a=rtpmap:101 telephone-event/8000#015#012a=fmtp:101 0-16#015#012a=ptime:20#015#012a=sendrecv#015#012 -- 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/1983

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[kamailio/kamailio] New branch in DNS SRV failover is using wrong source socket (#2152)
by Thomas Lobker 03 Mar '20

03 Mar '20

### Description When relaying an `INVITE` from a Kamailio proxy to an interconnect we are using DNS SRV records for load-balancing and failover. The proxy is listening on both a private interface and a public interface with an rfc1918 (ie. `10.0.0.14`) and a public IP address (ie. `185.0.0.34`) respectively. The first branch (before DNS SRV failover) is working as expected. The message will be relayed from the received socket (`185.0.0.34`) to the interconnect. When this branch results in a timeout, the proxy will try to do DNS SRV failover. This new branch and any subsequent branches will no longer use the initial received socket as source. In our case we see that the private address (`10.0.0.14`) is now being used as source address. ### Troubleshooting #### Reproduction DNS SRV: ``` _sip._udp.transit.net. SRV 10 10 5060 transit1.net. _sip._udp.transit.net. SRV 20 10 5060 transit2.net. transit1.net. A 185.10.20.30 transit2.net. A 185.10.20.31 ``` Kamailio: ``` $du = "sip:transit.net;transport=udp"; xinfo("Relaying [$rm] request: [$ru] with Call-ID [$ci]"); t_set_fr(0, 1000); if (not t_relay()) { sl_reply_error(); } ``` Network flow: ``` 12:30:00 INVITE udp:10.0.0.18:5060 => udp:185.0.0.34:5060 (internal request to proxy) 12:30:00 INVITE udp:185.0.0.34:5060 => udp:185.10.20.30:5060 (relaying from proxy to interconnect) ^^^^^^^^^^ (request times out after 1 second, proxy will do a failover to the next endpoint) 12:30:01 INVITE udp:10.0.0.14:5060 => udp:185.10.20.31:5060 (relaying to next interconnect address) ^^^^^^^^^ ``` #### Log Messages Attempt to see where it goes wrong: ``` onsend_route { xinfo("[$RAut] [$Rut] [$sas]\n"); xinfo("$snd(buf)\n"); } ``` ``` INFO: [sip:185.0.0.34:5060;transport=udp] [sip:185.0.0.34:5060;transport=udp] [udp:10.0.0.18:5060] INFO: INVITE sip:+1234567890@transit.net;user=phone SIP/2.0#015#012Record-Route: <sip:185.0.0.34;lr;ftag=tDr7m6erX1N3D>#015#012Via: SIP/2.0/UDP 10.0.0.14;branch=z9hG4bKafe7.7fb590e263fa44677514193a6a1156ce.1#015#012Via: SIP/2.0/UDP 10.0.0.18;received=10.0.0.18;rport=5060;branch=z9hG4bK6t59a17N60FcB ... ``` So the `Record-Route` seems to be correct, but the top most `Via` header shows the private IP address. The message is being sent from the private IP address as well and never reaches the second address from the interconnect. ### Possible Solutions A workaround to add `$fs = "udp:185.0.0.34:5060"` in the `onsend_route` seems to be effective. ### Additional Information * **Kamailio Version** - output of `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 7.4.0 ``` * **Operating System**: ``` Ubuntu 18.04 LTS Linux proxy4 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux ``` -- 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/2152

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[kamailio/kamailio] [kamailio 5.2.5] Wrong send socket on a multi homed proxy (#2181)
by vitalikvoip 02 Mar '20

02 Mar '20

### Description Kamailio fails to forward in-dialog request over TCP/TLS/WS/WSS connection. ### Troubleshooting kamailio 5.2 branch has a commit 09ac3e47ef79dbd599b7dec5b84ae3b792f025ed cherry picked from master branch. It makes sense for master because get_send_socket2() behavior has changed and function became smarter and also there were some patches to propagate connection it to the uac structure. After applying this patch to 5.2.x kamailio searches for an outgoing socket, receives the first one due to limitations of get_send_socket2() and SND_F_FORCE_SOCKET flag. Then it fails to find an existing TCP connection by destination ip:port since it searches for a connection associated with a wrong socket. #### Log Messages  ``` Dec 11 21:33:49 kamailio[17999]: WARNING: <core> [core/msg_translator.c:2832]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found Dec 11 21:33:49 kamailio[17999]: ERROR: tm [t_msgbuilder.c:1372]: assemble_via(): via building failed Dec 11 21:33:49 kamailio[17999]: ERROR: tm [t_msgbuilder.c:1540]: build_uac_req(): error while assembling Via Dec 11 21:33:49 kamailio[17999]: ERROR: tm [uac.c:517]: t_uac_prepare(): Error while building message Dec 11 21:33:49 kamailio[17999]: ERROR: presence [notify.c:1798]: send_notify_request(): in function tmb.t_request_within Dec 11 21:33:49 kamailio[17999]: ERROR: presence [notify.c:1897]: notify(): sending Notify not successful Dec 11 21:33:49 kamailio[17999]: ERROR: presence [notify.c:1491]: publ_notify(): Could not send notify for message-summary ``` ### Possible Solutions Delete mentioned commit from the 5.2 branch.  ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` 5.2.5 ``` * **Operating System**:  ``` linux ``` -- 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/2181

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sr-dev December 2019