sr-dev September 2020

sr-dev@lists.kamailio.org

12 participants
271 discussions

[kamailio/kamailio] import_file - wildcard support (#2125)
by sergey-safarov 31 Mar '21

31 Mar '21

### Description Could you extend `import_file` directive to support wildcards like ``` import_file "/run/kamailio/cfg/*" ``` This will allow place runtime config files with public IP of VM. Useful for cloud installation. ``` listen=udp:eth0 advertise 52.24.72.57:5060 listen=tcp:eth0 advertise 52.24.72.57:5060 ``` ### Expected behavior All files matched to wildcard included into config #### Actual observed behavior wildcard ignored -- 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/2125

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[kamailio/kamailio] $(hdr(foo)[idx]) is 0-based, textopsx.remove_hf_value("foo[idx]") is 1-based, they should be the same (#2387)
by Sebastian Damm 31 Mar '21

31 Mar '21

### Description We have some JS code looping over all P-Asserted-Identity headers removing some of the entries: ``` let headerIndex = 0; const telUriMatcher = new RegExp("tel:"); let paiValue = ksr.pv .gete("$(hdr(P-Asserted-Identity)[" + headerIndex + "])") .toString(); while (paiValue.length > 0) { ksr.info( `${ksr.pv.getw("$ci")}: Found P-A-I header with content <${ksr.pv.getw( "$(hdr(P-Asserted-Identity)[" + headerIndex + "])" )}> at index ${headerIndex}\n` ); if (telUriMatcher.test(paiValue)) { ksr.info( `${ksr.pv.getw("$ci")}: Removed P-A-I header ${ksr.pv.getw( "$(hdr(P-Asserted-Identity)[" + headerIndex + "])" )}\n` ); ksr.textopsx.remove_hf_value( "P-Asserted-Identity[" + headerIndex + "]" ); } headerIndex++; paiValue = ksr.pv .gete("$(hdr(P-Asserted-Identity)[" + headerIndex + "])") .toString(); } ``` In our tests, we wanted to remove the second header, but the first one got removed instead. The pseudovars docs say, the index of a header is 0-based. In textopsx docs it doesn't explicitly say, it's 1-based, but the first example shows it actually is. ### Possible Solutions Right now, we replaced the line ``` ksr.textopsx.remove_hf_value("P-Asserted-Identity[" + headerIndex + "]"); ``` with this one: ``` ksr.textopsx.remove_hf_value("P-Asserted-Identity[" + (headerIndex + 1) + "]"); ``` This solves the problem, but it is not what we would expect. Both header access methods should use the same index base. ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.3.5 (x86_64/linux) 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, TLS_PTHREAD_MUTEX_SHARED 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 8.3.0 ``` * **Operating System**:  ``` Linux hostname 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) 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/2387

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[kamailio/kamailio] xavp set in event_route[tm:local-request] are not used in SIP transaction (#2413)
by arkadiam 31 Mar '21

31 Mar '21

### Description I'm using dispatcher module like: ``` loadmodule "dispatcher.so" modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.list") modparam("dispatcher", "ds_probing_mode", 1) modparam("dispatcher", "ds_ping_interval", 60) ``` With records like: ``` 1 sip:sip.host.com;transport=tls 0 1 socket=tls:111.222.233.10:5061;ping_from=sip:my-domain-01.com 2 sip:sip.host.com;transport=tls 0 1 socket=tls:111.222.233.20:5061;ping_from=sip:my-domain-02.com ``` In event_route[tm:local-request] I'm modifying 'Contact' and would like to specify what client TLS profile to use via server name or server id. ``` event_route[tm:local-request] { if(is_method("OPTIONS")) { append_hf("Contact: <sip:some-host.com;transport=tls>\r\n"); $xavp(tls=>server_name)=$fd; $xavp(tls[0]=>server_id)=$fd; } } ``` Setting 'tls' xavp doesn't make any difference and default client TLS profile is being used. It happens because in src/modules/tm/uac.c there is a code: ``` t_run_local_req() ... tm_xdata_swap(new_cell, &backup_xd, 0); ... /* restore original environment */ tm_xdata_swap(new_cell, &backup_xd, 1); ``` which resets any xavp changes done in event_route[tm:local-request]. Expected behaviour: ability to use xavp in tm:local-request route. That would allow to choose TLS client profile for dispatcher initiated requests. ### Possible Solutions As a hack, in tm_xdata_swap() for mode=1, don't restore xavp list if it was NULL. ``` if (x->xavps_list != NULL && *x->xavps_list==NULL) { // .... don't restore empty list... } else { xavp_set_list(x->xavps_list); } ``` This change allows to select required TLS profile for dispatcher requests. ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.3.5 (x86_64/linux) ff2f8c-dirty 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, TLS_PTHREAD_MUTEX_SHARED 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: ff2f8c -dirty compiled on 10:19:05 Jul 28 2020 with gcc 7.5.0 ``` * **Operating System**: ``` Linux xx 4.15.0-111-generic #112-Ubuntu SMP Thu Jul 9 20:32:34 UTC 2020 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/2413

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[kamailio/kamailio] lreproxy module (#2208)
by mojtabaesfandiari 03 Mar '21

03 Mar '21

lreproxy: add new lreproxy module   #### 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 - [ ] 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:  - [ ] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description  You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/2208 -- Commit Summary -- * lreproxy module -- File Changes -- A src/modules/lreproxy/README.md (1) A src/modules/lreproxy/lreproxy.c (1976) A src/modules/lreproxy/lreproxy.h (120) A src/modules/lreproxy/lreproxy_funcs.c (460) A src/modules/lreproxy/lreproxy_funcs.h (41) A src/modules/lreproxy/lreproxy_hash.c (521) A src/modules/lreproxy/lreproxy_hash.h (70) -- Patch Links -- https://github.com/kamailio/kamailio/pull/2208.patch https://github.com/kamailio/kamailio/pull/2208.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/2208

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[kamailio/kamailio] ndb_redis: cluster support broken (#2461)
by Kritarth 02 Mar '21

02 Mar '21

### Description ndb_redis is treating MOVED reply from redis cluster as error and breaking out even before the cluster handling code gets a chance to process this. ``` if(rpl->rplRedis->type == REDIS_REPLY_ERROR) { LM_ERR("Redis error:%.*s\n", (int)rpl->rplRedis->len, rpl->rplRedis->str); goto error_exec; } if (check_cluster_reply(rpl->rplRedis, &rsrv)) { ... } ``` ### Troubleshooting #### Reproduction Setup a redis cluster with at least 2 nodes. Set modparam cluster=1 and allow_dynamic_nodes=1 fire redis get commands #### Log Messages ``` ERROR: ndb_redis [redis_client.c:1037]: redisc_exec(): Redis error:MOVED 1090 10.4.20.69:6379 ``` ### Possible Solutions revert https://github.com/kamailio/kamailio/commit/d00b14704805d728f5a845a6af900ef… or Add another check to ignore the above logic if cluster support is enabled. or Do not treat MOVED replies as of type REDIS_REPLY_ERROR ### Additional Information ``` kamailio built from branch 5.4.1 ``` -- 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/2461

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[kamailio/kamailio] Kamailio not retrieving custom or default socket when sending timed REGISTER messages (#2262)
by kdanderso 26 Jan '21

26 Jan '21

### Description When using Kamailio in a multi-homed configuration to register with another device using the uac module, it does not retrieve the custom or default socket information for timed registration attempts. It does, however, use the custom/default socket data for the initial registration. #### Reproduction The network is configured for two addresses: 10.9.9.121/24 and 10.9.7.121/24. Two floating IP addresses are also assigned (via Pacemaker/Corosync): 10.9.9.120/24 and 10.9.7.120/24. For testing, all addresses can be assigned permanently, so it is not necessary to have Pacemaker/Corosync installed. MySQL database has a user in the uacreg table with the socket column set to udp:10.9.7.120:5060. kamailio.cfg includes the following to enable sending of REGISTER messages: mhomed = 1 listen=udp:10.9.9.120 listen=udp:10.9.7.120 #!define DBURL "mysql://kamailio:kamailiorw@10.9.9.101/kamailio" modparam("rr", "append_fromtag", 1); modparam("uac", "reg_db_url", DBURL); modparam("uac", "reg_contact_addr", "10.9.7.120:5060"); modparam("uac", "reg_keep_callid", 1); modparam("uac", "default_socket", "udp:10.9.7.120:5060"); modparam("uac", "reg_timer_interval", 30); #### Log Messages The initial REGISTER outputs the following log data. The registration completes successfully. Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: uac [uac.c:407]: child_init(): run initial uac registration routine Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: uac [uac_reg.c:1172]: uac_reg_update(): using custom socket udp:10.9.7.120:5060 to send request Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/socket_info.c:628]: grep_sock_info(): checking if host==us: 10==10 && [10.9.7.120] == [10.9.9.120] Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/socket_info.c:635]: grep_sock_info(): checking if port 5060 (advertise 0) matches port 5060 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/socket_info.c:628]: grep_sock_info(): checking if host==us: 10==10 && [10.9.7.120] == [10.9.7.120] Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/socket_info.c:635]: grep_sock_info(): checking if port 5060 (advertise 0) matches port 5060 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: tm [uac.c:435]: t_uac_prepare(): next_hop=<sip:10.9.7.102> Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: tm [uac.c:158]: dlg2hash(): hashid 3846 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: tm [uac.c:244]: t_run_local_req(): executing event_route[tm:local-request] Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:610]: parse_msg(): SIP Request: Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:612]: parse_msg(): method: <REGISTER> Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:614]: parse_msg(): uri: <sip:10.9.7.102> Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:616]: parse_msg(): version: <SIP/2.0> Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/parse_via.c:1303]: parse_via_param(): Found param type 232, <branch> = <z9hG4bK60f.6fd7c907000000000000000000000000.0>; state=16 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/parse_via.c:2639]: parse_via(): end of header reached, state=5 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:498]: parse_headers(): Via found, flags=2 Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <core> [core/parser/msg_parser.c:500]: parse_headers(): this is the first via Mar 24 19:09:27 kam_test kamailio[8425]: exec: *** cfgtrace:local_route=[tm:local-request] c=[/usr/local/etc/kamailio/kamailio.cfg] l=229 a=26 n=xlog Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: <script>: In event_route(tm:local-request) Mar 24 19:09:27 kam_test kamailio[8425]: DEBUG: tm [uac.c:664]: send_prepared_request_impl(): uac: 0x7268e184 branch: 0 to 10.9.7.102:5060 When the timer expires, the following is logged. Since the socket is not found, the registration fails: Mar 24 19:09:57 kam_test kamailio[8425]: DEBUG: tm [uac.c:435]: t_uac_prepare(): next_hop=<sip:10.9.7.102> Mar 24 19:09:57 kam_test kamailio[8425]: ERROR: <core> [core/forward.c:181]: get_out_socket(): no socket found Mar 24 19:09:57 kam_test kamailio[8425]: ERROR: <core> [core/forward.c:183]: get_out_socket(): no corresponding socket found for(udp:10.9.7.102:5060) Mar 24 19:09:57 kam_test kamailio[8425]: ERROR: tm [ut.h:316]: uri2dst2(): no corresponding socket found for "10.9.7.102" af 2 (udp:10.9.7.102:5060) Mar 24 19:09:57 kam_test kamailio[8425]: ERROR: tm [uac.c:463]: t_uac_prepare(): no socket found Mar 24 19:09:57 kam_test kamailio[8425]: DEBUG: tm [h_table.c:132]: free_cell_helper(): freeing transaction 0x7268de10 from uac.c:604 Mar 24 19:09:57 kam_test kamailio[8425]: ERROR: uac [uac_reg.c:1196]: uac_reg_update(): failed to send request for [kamailioha] ### Additional Information version: kamailio 5.3.2 (arm6/linux) 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, TLS_PTHREAD_MUTEX_SHARED 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 on 17:22:05 Mar 18 2020 with gcc 8.3.0 * **Operating System**: Linux kam_test 4.19.75-v7+ #1270 SMP Tue Sep 24 18:45:11 BST 2019 armv7l 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/2262

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[kamailio/kamailio] Kamailio-5.4.: Crashs from keepalive module (#2476)
by zhangyang 14 Dec '20

14 Dec '20

### Description I just update kamailio 5.2.1 to 5.4.1. then there are some crashs from keepalive module. ### Troubleshooting ![image](https://user-images.githubusercontent.com/16113837/93066033-08c29880-f6ac-11ea-8660-12348f8881ab.png) #### Reproduction #### Debugging Data ``` Thread 1 (Thread 0x2b4d0df90d00 (LWP 30239)): #0 0x00000000004ef1a7 in atomic_cmpxchg_int (var=0x0, old=0, new_v=1) at core/mem/../atomic/atomic_x86.h:224 #1 0x00000000004ef21a in futex_get (lock=0x0) at core/mem/../futexlock.h:99 #2 0x00000000004f339a in timer_add_safe (tl=0x2b4d13af7928, delta=8) at core/timer.c:543 #3 0x00002b4d133b32c3 in ka_add_dest (uri=0x7ffe571d1440, owner=0x7ffe571d1430, flags=0, ping_interval=3, statechanged_clb=0x0, response_clb=0x0, user_attr=0x0) at keepalive_api.c:120 #4 0x00002b4d133b95ff in ka_mod_add_destination (type=2147483649, val=0x2b4d0ed29300) at keepalive_mod.c:244 #5 0x00000000006615b8 in set_mod_param_regex (regex=0x2b4d0ed29130 "keepalive", name=0x2b4d0ed29218 "destination", type=1, val=0x2b4d0ed29300) at core/modparam.c:125 #6 0x00000000007becec in yyparse () at core/cfg.y:1842 #7 0x000000000042f216 in main (argc=5, argv=0x7ffe571d2578) at main.c:2320 #3 0x00002b4d133b32c3 in ka_add_dest (uri=0x7ffe571d1440, owner=0x7ffe571d1430, flags=0, ping_interval=3, statechanged_clb=0x0, response_clb=0x0, user_attr=0x0) at keepalive_api.c:120 120 if(timer_add(dest->timer, MS_TO_TICKS(KA_FIRST_TRY_DELAY)) < 0){ $2 = {next = 0x0, prev = 0x0, expire = 0, initial_timeout = 0, data = 0x2b4d13af7738, f = 0x2b4d133b4fbf <ka_check_timer>, flags = 0, slow_idx = 0} _uri = {user = {s = 0x0, len = 0}, passwd = {s = 0x0, len = 0}, host = {s = 0x2b4d13af783c "172.18.67.47", len = 12}, port = {s = 0x0, len = 0}, params = {s = 0x0, len = 0}, sip_params = {s = 0x0, len = 0}, headers = {s = 0x0, len = 0}, port_no = 0, proto = 0, type = SIP_URI_T, flags = (unknown: 0), transport = {s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x0, len = 0}, maddr = {s = 0x0, len = 0}, method = {s = 0x0, len = 0}, lr = {s = 0x0, len = 0}, r2 = {s = 0x0, len = 0}, gr = {s = 0x0, len = 0}, transport_val = {s = 0x0, len = 0}, ttl_val = {s = 0x0, len = 0}, user_param_val = { s = 0x0, len = 0}, maddr_val = {s = 0x0, len = 0}, method_val = {s = 0x0, len = 0}, lr_val = {s = 0x0, len = 0}, r2_val = {s = 0x0, len = 0}, gr_val = {s = 0x0, len = 0}} dest = 0x2b4d13af7738 hollow = 0x0 __FUNCTION__ = "ka_add_dest" #2 0x00000000004f339a in timer_add_safe (tl=0x2b4d13af7928, delta=8) at core/timer.c:543 543 LOCK_TIMER_LIST(); ret = 0 __FUNCTION__ = "timer_add_safe" ``` #### Log Messages ``` Sep 14 15:49:34 localhost kamailio: INFO: pv [pv_shv.c:60]: shvar_init_locks(): locks array size 16 Sep 14 15:49:34 localhost kernel: kamailio[30186]: segfault at 0 ip 00000000004ef1a7 sp 00007ffdd2db9170 error 6 in kamailio[400000+4ae000] ``` #### SIP Traffic ``` (paste your sip traffic here) ``` ### Possible Solutions ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` (paste your output here) ``` * **Operating System**: ``` Linux version 3.10.0-327.el7.x86_64 (builder(a)kbuilder.dev.centos.org) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Thu Nov 19 22:10:57 UTC 2015 ``` -- 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/2476

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[kamailio/kamailio] Deadlocks after ungracefully terminated TLS connections (#2395)
by Laszlo 09 Dec '20

09 Dec '20

This bug report concerns a Kamailio instance that's functioning as an edge proxy, accepting requests from clients over TLS and forwarding them to internal components over UDP. I've observed occasional "deadlocks" that all take place after there were connectivity issues between Kamailio and one or more of the clients (logging messages such as "tcp_send failed", "handle_tcpconn_ev(): connect x failed", "tcp_read_data(): error reading: Connection reset by peer"). Environment: * Ubuntu 16.04 * Kamailio 5.2.7 (5.2.7+ubuntu16.04) Relevant config: ``` # for TLS clients socket_workers=10 listen=tls:wan.ip:TLS_PORT # to be able to forward incoming TCP requests to UDP destinations socket_workers=10 listen=udp:wan.ip:TLS_PORT # for RPC commands socket_workers=2 listen=tcp:127.0.0.1:HTTP_PORT ``` ## Reproduction After a lot of trial and error, I've found a way to somewhat reproducibly trigger the problem using sipp. It involves setting up a large amount of simultaneous calls dialing into the edge proxy using TLS, to a destination UA that will answer the call and keep it open for a few seconds, then using `ctrl-c` to suddenly quit sipp which will ungracefully terminate the TCP/TLS connections. It takes me a couple of iterations to trigger the problem, e.g repeat until Kamailio starts failing: * start sipp * terminate sipp with ctrl-c * (quickly) restart sipp * terminate sipp * etc The amount of simultaneous calls has to be sufficiently large. In my environment I'm unable to reproduce the problem at all with 10-20 calls, while 50 calls always triggers the problem after a couple of iterations. Example sipp commandline: `sipp -nd -sf caller.xml -d 2000 -r 50 -l 500 -m 5000 -max_socket 1000 -t ln -tls_cert cert.crt -tls_key key.key kamailio.edge.proxy:5061` ## Failure mode 1 In one of the failure modes, it appears that all available TCP/TLS workers are permanently bricked; sipp's calls will simply timeout and not trigger any dialplan handling. Interestingly, even though I have dedicated workers for TLS (SIP client) and TCP (RPC commands), and my reproduction scenario doesn't connect to the HTTP_PORT at all, this failure scenario bricks the TCP (RPC) listeners as well; any curl requests to it will simply timeout as well. Kamailio will hang for a while on (systemd) restart. ## Failure mode 2 In another failure mode, it looks like the TCP workers are unaffected but the UDP perform forwarding to UDP destinations are broken. Sipp's calls will enter Kamailio, but forwarding (`relay()`) to the next hop will timeout even though the destination is functioning just fine. Since this failure mode doesn't break RPC I was able to enable debug logging: ``` 2020-07-07T17:26:58.770411+02:00 kamailio[24056]: INFO: From Customer 2020-07-07T17:26:58.770697+02:00 kamailio[24056]: DEBUG: pv [pv_trans.c:590]: tr_eval_string(): i=0 j=2 2020-07-07T17:26:58.770971+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2055]: ds_manage_routes(): set [4] 2020-07-07T17:26:58.771248+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2161]: ds_manage_routes(): using alg [0] hash [250849449] 2020-07-07T17:26:58.771535+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2205]: ds_manage_routes(): selected [0-4-0/1] <sip:wan.ip:8065> 2020-07-07T17:26:58.771817+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2226]: ds_manage_routes(): using first entry [4/1] 2020-07-07T17:26:58.772090+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2269]: ds_manage_routes(): using entry [4/0] 2020-07-07T17:26:58.772362+02:00 kamailio[24056]: DEBUG: dispatcher [dispatch.c:2016]: ds_select_dst_limit(): selected target destinations: 2 2020-07-07T17:26:58.773001+02:00 kamailio[24056]: DEBUG: pv [pv_core.c:2611]: pv_set_force_sock(): trying to set send-socket to [udp:wan.ip:5061] 2020-07-07T17:26:58.773353+02:00 kamailio[24056]: DEBUG: <core> [core/socket_info.c:559]: grep_sock_info(): checking if host==us: 13==13 && [wan.ip] == [wan.ip] 2020-07-07T17:26:58.773829+02:00 kamailio[24056]: DEBUG: <core> [core/socket_info.c:566]: grep_sock_info(): checking if port 5061 (advertise 0) matches port 5061 2020-07-07T17:26:58.774122+02:00 kamailio[24056]: NOTICE: Relaying (cid: 1-9151(a)sipp.ip). 2020-07-07T17:26:58.774417+02:00 kamailio[24056]: DEBUG: siputils [checks.c:120]: has_totag(): no totag 2020-07-07T17:26:58.774708+02:00 kamailio[24056]: DEBUG: tm [t_lookup.c:1344]: t_newtran(): msg (0x7f69d1cc4980) id=1265/24056 global id=1265/24056 T start=(nil) 2020-07-07T17:26:58.774989+02:00 kamailio[24056]: DEBUG: tm [t_lookup.c:499]: t_lookup_request(): start searching: hash=43232, isACK=0 2020-07-07T17:26:58.775315+02:00 kamailio[24056]: DEBUG: tm [t_lookup.c:457]: matching_3261(): RFC3261 transaction matching failed - via branch [z9hG4bK-9151-1-1] 2020-07-07T17:26:58.775612+02:00 kamailio[24056]: DEBUG: tm [t_lookup.c:682]: t_lookup_request(): no transaction found 2020-07-07T17:26:58.775908+02:00 kamailio[24056]: DEBUG: <core> [core/md5utils.c:67]: MD5StringArray(): MD5 calculated: 0a5d4a8d13f9606523da9c4d193b2261 2020-07-07T17:26:58.776270+02:00 kamailio[24056]: DEBUG: <core> [core/dns_cache.c:3197]: dns_srv_sip_resolve(): (wan.ip, 0, 0), ip, ret=0 2020-07-07T17:26:58.776701+02:00 kamailio[24056]: DEBUG: <core> [core/msg_translator.c:1765]: check_boundaries(): no multi-part body 2020-07-07T17:26:58.777012+02:00 kamailio[24056]: DEBUG: <core> [core/msg_translator.c:2935]: create_via_hf(): id added: <;i=a701>, rcv proto=3 2020-07-07T17:26:58.777596+02:00 kamailio[24056]: DEBUG: tm [t_funcs.c:375]: t_relay_to(): new transaction forwarded 2020-07-07T17:26:58.777948+02:00 kamailio[24056]: DEBUG: <core> [core/receive.c:354]: receive_msg(): request-route executed in: 1927 usec 2020-07-07T17:26:58.778243+02:00 kamailio[24056]: DEBUG: <core> [core/usr_avp.c:636]: destroy_avp_list(): destroying list (nil) 2020-07-07T17:26:58.779265+02:00 kamailio[24056]: message repeated 5 times: [ DEBUG: <core> [core/usr_avp.c:636]: destroy_avp_list(): destroying list (nil)] 2020-07-07T17:26:58.779431+02:00 kamailio[24056]: DEBUG: <core> [core/xavp.c:507]: xavp_destroy_list(): destroying xavp list (nil) 2020-07-07T17:26:58.779753+02:00 kamailio[24056]: DEBUG: <core> [core/receive.c:458]: receive_msg(): cleaning up 2020-07-07T17:27:00.705303+02:00 kamailio[24053]: DEBUG: tm [t_reply.c:1266]: t_should_relay_response(): ->>>>>>>>> T_code=0, new_code=408 2020-07-07T17:27:00.705917+02:00 kamailio[24053]: DEBUG: tm [t_lookup.c:1041]: t_check_msg(): msg (0x7f69b1017e80) id=1264/24056 global id=1264/24056 T start=0x7f69b10167c0 2020-07-07T17:27:00.706187+02:00 kamailio[24053]: DEBUG: tm [t_lookup.c:1116]: t_check_msg(): T (0x7f69b10167c0) already found for msg (0x7f69b1017e80)! 2020-07-07T17:27:00.706533+02:00 kamailio[24053]: DEBUG: tmx [t_var.c:539]: pv_get_tm_reply_code(): reply code is <408> 2020-07-07T17:27:00.706879+02:00 kamailio[24053]: DEBUG: tm [t_lookup.c:1041]: t_check_msg(): msg (0x7f69b1017e80) id=1264/24056 global id=1264/24056 T start=0x7f69b10167c0 2020-07-07T17:27:00.707198+02:00 kamailio[24053]: DEBUG: tm [t_lookup.c:1116]: t_check_msg(): T (0x7f69b10167c0) already found for msg (0x7f69b1017e80)! 2020-07-07T17:27:00.707522+02:00 kamailio[24053]: DEBUG: tmx [t_var.c:594]: pv_get_tm_reply_reason(): reply reason is [Request Timeout] { "DSC": "tcp receiver (tls:wan.ip:5061) child=0", "IDX": 14, "PID": 24056 }, { "DSC": "slow timer", "IDX": 11, "PID": 24053 }, ``` Kamailio will restart (systemd) normally and everything will function normally again afterwards. -- 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/2395

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[kamailio/kamailio] core: main - Protect async-signal-unsafe code in sig_usr() with SIG_DEBUG (#2127)
by Guillem Jover 02 Dec '20

02 Dec '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 - [ ] 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: - [ ] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description The sig_usr() signal handler contains debug code to print memory usage and statistics that is not async-signal-safe, which can cause crashes or misbehavior. This code which only affects explicit SIGUSR1 signals on children processes, and is not guarded with the SIG_DEBUG macro. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/2127 -- Commit Summary -- * core: main - Protect async-signal-unsafe code in sig_usr() with SIG_DEBUG -- File Changes -- M src/main.c (2) -- Patch Links -- https://github.com/kamailio/kamailio/pull/2127.patch https://github.com/kamailio/kamailio/pull/2127.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/2127

4 9

[kamailio/kamailio] Expand the list of required default 3rd party libraries for Kamailio (#969)
by Olle E. Johansson 02 Dec '20

02 Dec '20

(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

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sr-dev September 2020