sr-dev November 2024

sr-dev@lists.kamailio.org

20 participants
371 discussions

[kamailio/kamailio] fr_timer documentation mistake (Issue #3939)
by Dmitry Sinina 05 Apr '25

05 Apr '25

Documentation https://www.kamailio.org/docs/modules/devel/modules/tm.html#tm.p.fr_timer says: >Timer which hits if no **final reply** for a request or ACK for a negative INVITE reply arrives (in milliseconds). Looks like it is not correct description - fr_timer value works until 1xx(not **final**) response received and then timer restarted with fr_inv_timer value there: https://github.com/kamailio/kamailio/blob/master/src/modules/tm/t_reply.c#L… Looks like old doc from sip router https://sip-router.org/wiki/ref_manual/timers explains it correctly: > fr_timer This timer is used for all SIP requests. It hits if no reply for an INVITE request or other request has been received (F in milliseconds). If a provisional reply is received for an INVITE (any 1xx), then the fr_inv_timer will be used instead. And if no replies (at all) for an INVITE are received before `fr_timer` hits, the transaction is terminated with a 408 in failure route. -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3939 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3939(a)github.com>

3 8

[kamailio/kamailio] tcp_timer_check_connections() logs on CRITICAL and is not caught by event_route[tcp:timeout] (Issue #3995)
by Fritjof Höst 02 Apr '25

02 Apr '25

### Description Hi! We are in the progress of upgrading from Kamailio 5.5 to 5.8. During our testing we have noticed a new error being reported from Kamailio. We don’t see any other errors following it. ```jsx /usr/sbin/kamailio[201]: CRITICAL: <core> [core/tcp_main.c:5544]: tcp_timer_check_connections(): message processing timeout on connection id: 67896 (state: 3) - closing ``` It does seem to be [new code](https://github.com/kamailio/kamailio/blob/master/src/core/tcp_main.c#… in Kamailio reporting this issue. Given that this is a fairly expected thing, cleaning up a connection which receives no traffic within the given time, is there a need for it to be reported on CRITICAL? I’d also expect it to be caught by ``` event_route[tcp:timeout] { xlog("L_INFO","connection $conid timeouts (unanswered keepalives)"); } ``` given that [the description](https://www.kamailio.org/docs/modules/stable/modules/tcpops.ht… of this one is `Called for connection timeouts (unanswered keepalives).`. ### Troubleshooting We don't have any way to reproduce it, we are still investigating it to figure out the cause. It happens around every 2 hours, so we think there might some some scheduled test or job running in our test system causing this. ### Additional Information * **Kamailio Version** - 5.8.3 * **Operating System**: Debian 12 AMI from the AWS Marketplace. -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3995 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3995(a)github.com>

5 7

[kamailio/kamailio] tls: Create one shared context and reuse it. (PR #3972)
by Xenofon Karamanos 01 Apr '25

01 Apr '25

#### Pre-Submission Checklist    - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] 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) - [x] 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 - [x] Tested changes locally - [x] Related to issue #3823 #### Description  This PR aims to implement what was discussed in [mailing list](https://lists.kamailio.org/mailman3/hyperkitty/list/sr-dev@lists.kama… regarding some `tls.reload` and increasing memory usage. It adds a new parameter `enable_shared_ctx` in `tls` module that if set to 0, preserves the old behavior and if set to 1 (other than 0 tbh), it creates a single SSL context that is being shared. This have the effect of using way less memory when initialized as well, but also minimizes (can't say it fixes the problem) the `tls.reload` memory increase. I have also added a small markdown (comparison.md) file, where some comparisons where made between enabled/disabled shared context and with/without CA file (where the initial problem was occurring by the reporter). Feedback would be necessary to verify whether this patch, acts as expected and kamailio works as intented. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3972 -- Commit Summary -- * tls: Add parameter for shared contexts * tls: Comparison for enable_shared_ctx -- File Changes -- A comparison.md (15) M src/modules/tls/tls_domain.c (172) M src/modules/tls/tls_mod.c (11) M src/modules/tls/tls_mod.h (1) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3972.patch https://github.com/kamailio/kamailio/pull/3972.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3972 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3972(a)github.com>

4 9

[kamailio/kamailio] core: local TCP socket is bound on listening address (PR #3925)
by sergey-safarov 01 Apr '25

01 Apr '25

#### Pre-Submission Checklist - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] 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 - [x] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description As a local IP address for TCP sending operation the Kamailio service is taking the same network_interface/IP_address, which is used by the service for TCP listening. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3925 -- Commit Summary -- * core: local TCP socket is bound on listening address -- File Changes -- M src/core/tcp_main.c (24) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3925.patch https://github.com/kamailio/kamailio/pull/3925.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3925 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3925(a)github.com>

5 14

[kamailio/kamailio] Memory usage increases everytime tls.reload is executed (Issue #3823)
by Sebastian Denz 27 Mar '25

27 Mar '25

### Description We are using Kamailio 5.7.4 on Debian 12 (from http://deb.kamailio.org/kamailio57) with rtpengine as an Edgeproxy for our clients. The instance terminates SIP/TLS (with Cliencertificates) and forwards the SIP Traffic to internal systems. After some days we are getting errors like this `tls_complete_init(): tls: ssl bug #1491 workaround: not enough memory for safe operation: shm=7318616 threshold1=8912896` First we thought Kamailio just doesnt have enough memory, so we doubled it.. But after some days the Logmessage (and Userissues) occured again. So we monitored the shmmem statistics and found that used and max_used are constantly growing til it reaches the limit. As i mentioned we are using client-certificates and so we are also using the CRL feature. We do have a systemd-timer which fetches the CRL every hour and runs 'kamcmd tls.reload' when finished. Our tls.cfg looks like this: ``` [server:default] method = TLSv1.2+ private_key = /etc/letsencrypt/live/hostname.de/privkey.pem certificate = /etc/letsencrypt/live/hostname.de/fullchain.pem ca_list = /etc/kamailio/ca_list.pem ca_path = /etc/kamailio/ca_list.pem crl = /etc/kamailio/combined.crl.pem verify_certificate = yes require_certificate = yes [client:default] verify_certificate = yes require_certificate = yes ``` After testing a bit we found that every time tls.reload is executed Kamailio consumes a bit more memory which eventually leads to all the memory being consumed which leads to issues for our users. See following example: ``` [0][root@edgar-dev:~]# while true ; do /usr/sbin/kamcmd tls.reload ; /usr/sbin/kamcmd core.shmmem ; sleep 1 ; done Ok. TLS configuration reloaded. { total: 268435456 free: 223001520 used: 41352552 real_used: 45433936 max_used: 45445968 fragments: 73 } Ok. TLS configuration reloaded. { total: 268435456 free: 222377960 used: 41975592 real_used: 46057496 max_used: 46069232 fragments: 78 } Ok. TLS configuration reloaded. { total: 268435456 free: 221748664 used: 42604992 real_used: 46686792 max_used: 46698080 fragments: 77 } Ok. TLS configuration reloaded. { total: 268435456 free: 221110832 used: 43242408 real_used: 47324624 max_used: 47335608 fragments: 81 } ^C [130][root@edgar-dev:~]# ``` ### Troubleshooting #### Reproduction Everytime tls.reload is called the memory consumptions grows.. #### Debugging Data  ``` If you let me know what would be interesting for tracking this down, i am happy to provide logs/debugging data! ``` #### Log Messages  ``` If you let me know what would be interesting for tracking this down, i am happy to provide logs/debugging data! ``` #### SIP Traffic SIP doesnt seem to be relevant here ### Possible Solutions Calling tls.reload less often or restart kamailio before memory is consumed ;) ### Additional Information ``` version: kamailio 5.7.4 (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, MEM_JOIN_FREE, 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_BLOCKLIST, 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 12.2.0 ``` * **Operating System**: ``` * Debian GNU/Linux 12 (bookworm) * Linux edgar-dev 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux ``` -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3823 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3823(a)github.com>

8 30

[kamailio/kamailio] topos: add enable_register_publish (PR #3766)
by Harish S 09 Mar '25

09 Mar '25

Added enable_register_publish parameter to enable REGISTER and PUBLISH method for topos If set to 1 REGISTER and PUBLISH will be enabled for topos Currently only via header will be applied for topos and if mask_callid is set to 1 call-ID will be masked. Other headers should be manged by the user as required.   #### Pre-Submission Checklist    - [x] Commit message has the format required by CONTRIBUTING guide - [x] 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/3766 -- Commit Summary -- * add enable_register_publish -- File Changes -- M src/modules/topos/topos_mod.c (2) M src/modules/topos/tps_msg.c (132) M src/modules/topos/tps_msg.h (2) M src/modules/topos/tps_storage.c (6) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3766.patch https://github.com/kamailio/kamailio/pull/3766.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3766 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3766(a)github.com>

5 39

[kamailio/kamailio] topos:added get_callid_mask/get_callid_unmask funtion for handeling Refer-To header (PR #3872)
by Harish S 09 Mar '25

09 Mar '25

Topos: Added get_callid_mask functin which will give the masked callID if actual callID is given and get_callid_unmask function which will unmask the given call-ID. This funtion is useful when the client sends a refer methord with refer-to header containing call-id  #### Pre-Submission Checklist    - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] 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) - [x] 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 - [x] 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/3872 -- Commit Summary -- * add funtion to mask/unmask callID * get_callid_mask /get_callid_unmask Document Update -- File Changes -- M src/modules/topos/doc/topos_admin.xml (87) M src/modules/topos/topos_mod.c (183) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3872.patch https://github.com/kamailio/kamailio/pull/3872.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3872 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3872(a)github.com>

4 12

[kamailio/kamailio] In function ksr_tm_event_response_sent(evname), header and body modifications are not applied (Issue #3997)
by JuanPascual2 05 Mar '25

05 Mar '25

Hello In the function ksr_tm_event_response_sent(evname), header and body modifications are not applied. **Example of modification:** KSR.textops.set_body("application/test", "teststbody") KSR.textops.remove_hf("Contact") KSR.hdr.append("X-My-Hdr: testhdrappend \r\n") In the Kamailio logs, we can see that the changes have been processed, but the response sent does not contain the changes. BR Juan **Configuration kamailio.cfg** modparam("tm", "event_callback_lres_sent", "ksr_tm_event_response_sent") **Configuration kamailio.lua** ----------------------- --Function ksr_tm_event_response_sent bug ----------------------- function ksr_tm_event_response_sent(evname) log.debug("\27[36m --> Sending reply: $rs $rr \27[0m") log.debug("\27[35m Reply sent ",evname,"\27[0m") KSR.textops.set_body("application/test", "teststbody") KSR.textops.remove_hf("Contact") KSR.hdr.append("X-My-Hdr: testhdrappend \r\n") end **Traces debug KAMAILIO** 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: xinfo is str: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:96: --> Sending reply: $rs $rr 4(260) DEBUG: <core> [core/pvapi.c:502]: pv_spec_lookup(): PV <$rs> is not in cache 4(260) DEBUG: <core> [core/pvapi.c:386]: pv_cache_add(): pvar [$rs] added in cache 4(260) DEBUG: <core> [core/pvapi.c:502]: pv_spec_lookup(): PV <$rr> is not in cache 4(260) DEBUG: <core> [core/pvapi.c:386]: pv_cache_add(): pvar [$rr] added in cache 4(260) INFO: <script>: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:96: --> Sending reply: 200 OK 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: xinfo is str: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:97: Reply sent tm:local-response-sent 4(260) INFO: <script>: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:97: Reply sent tm:local-response-sent 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: set_body is str: application/test 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[1] for: set_body is str: teststbody 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [To] type 3 4(260) DEBUG: <core> [core/parser/parse_addr_spec.c:185]: parse_to_param(): add param: tag=bb3c24ed793eec883784ff522b4e48d0 4(260) DEBUG: <core> [core/parser/parse_addr_spec.c:904]: parse_addr_spec(): end of header reached, state=29 4(260) DEBUG: <core> [core/parser/msg_parser.c:172]: get_hdr_field(): <To> [61]; uri=[sip:1234@sip.osp.com] 4(260) DEBUG: <core> [core/parser/msg_parser.c:174]: get_hdr_field(): to body (22)[<sip:1234@sip.osp.com>], to tag (32)[bb3c24ed793eec883784ff522b4e48d0] 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [From] type 4 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [CSeq] type 5 4(260) DEBUG: <core> [core/parser/msg_parser.c:152]: get_hdr_field(): cseq <CSeq>: <63723> <REGISTER> 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [Call-ID] type 6 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [Content-Type] type 11 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [Contact] type 7 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [Content-Length] type 12 4(260) DEBUG: <core> [core/parser/msg_parser.c:187]: get_hdr_field(): content_length=6 4(260) DEBUG: <core> [core/parser/msg_parser.c:91]: get_hdr_field(): found end of header 4(260) DEBUG: textops [textops.c:2597]: ki_set_body(): new body: [application/test] 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: remove_hf is str: Contact 4(260) DEBUG: <core> [core/parser/parse_hname2.c:315]: parse_sip_header_name(): parsed header name [Contact] type 7 4(260) DEBUG: <core> [core/kemi.c:2350]: sr_kemi_hdr_remove(): remove hf: Contact 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: append is str: X-My-Hdr: testhdrappend 4(260) DEBUG: <core> [core/kemi.c:2224]: sr_kemi_hdr_append(): append hf: X-My-Hdr: testhdrappend 4(260) DEBUG: app_lua [app_lua_mod.c:166]: sr_kemi_config_engine_lua(): execution of route type 513 with name [ksr_tm_event_response_sent] returned 1 4(260) DEBUG: tm [t_reply.c:634]: _reply_light(): reply sent out - buf=0x786b611bb9e0: SIP/2.0 200 OK Via:... shmem=0x786b58ceea80: SIP/2.0 200 OK Via: 4(260) DEBUG: tm [t_funcs.c:133]: put_on_wait(): put T [0x786b58ceb770] on wait 4(260) DEBUG: tm [t_reply.c:650]: _reply_light(): finished 4(260) DEBUG: jsonrpcs [jsonrpcs_mod.c:443]: jsonrpc_send_mode(): sending response with body: (nil) - 200 OK 4(260) DEBUG: app_lua [app_lua_api.c:1023]: sr_kemi_lua_exec_func_ex(): param[0] for: xinfo is str: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:36: ksr_request_route: 23.11 ms 4(260) INFO: <script>: 2024-10-10 10-18-10 [debug] /opt/kamailio/kamailio.lua:36: ksr_request_route: 23.11 ms 4(260) DEBUG: app_lua [app_lua_mod.c:169]: sr_kemi_config_engine_lua(): execution of route type 1 with no name returned 1 4(260) DEBUG: <core> [core/receive.c:531]: receive_msg(): request-route executed in: 23343 usec 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/usr_avp.c:654]: destroy_avp_list(): destroying list (nil) 4(260) DEBUG: <core> [core/xavp.c:630]: xavp_destroy_list(): destroying xavp list (nil) 4(260) DEBUG: <core> [core/xavp.c:630]: xavp_destroy_list(): destroying xavp list (nil) 4(260) DEBUG: <core> [core/xavp.c:630]: xavp_destroy_list(): destroying xavp list (nil) 4(260) DEBUG: <core> [core/receive.c:635]: receive_msg(): cleaning up 18(274) DEBUG: tm [timer.c:642]: wait_handler(): finished transaction: 0x786b58ce81a0 (p:0x786b58baa3c0/n:0x786b58baa3c0) 18(274) DEBUG: tm [h_table.c:133]: free_cell_helper(): freeing transaction 0x786b58ce81a0 from timer.c:651 18(274) DEBUG: tm [timer.c:642]: wait_handler(): finished transaction: 0x786b58ceb770 (p:0x786b58b729c0/n:0x786b58b729c0) 18(274) DEBUG: tm [h_table.c:133]: free_cell_helper(): freeing transaction 0x786b58ceb770 from timer.c:651 -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3997 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3997(a)github.com>

4 8

[kamailio/kamailio] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls (Issue #4006)
by igorpotjevlesh 28 Feb '25

28 Feb '25

### Description We are plotting the call success rate on each of our proxies. Using the Kamailio snmpstats module, we try to obtain three counters in order to plot them on a graph: - Total Calls - Active Calls - Error Calls Most of the time, everything works well and we obtain sensible values: `snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n` > .1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 309 -> Total Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 95 -> Active Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 214 -> Error calls However, **when our proxies are facing intense peaks of failed calls in a short timespan**, sometimes, the **"Error Calls"** counter returns a value **higher than "Total Calls"**. As a result, **"Active Calls"** suddenly reaches a value close to the **maximum of a _Gauge32_** (because ${TotalCalls} - {ErrorCalls} < 0$). `snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n` > .1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 153 -> Total Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 4294967226 -> Active Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 223 -> Error calls As a result, our graphs make no more sense. ### Troubleshooting There seems to be a bug causing Total calls to be lower than Error calls when a high number of failed calls are received in a short time window. Moreover, there is an integer overflow resulting to the negative result of the substraction being converted to a _Gauge32_. Maybe setting it to 0 in case of a negative result would be safer ? #### Reproduction Using the following configuration for the snmpstats module of your Kamailio proxy: ``` # -------- snmpstats params ------- modparam("snmpstats", "snmpgetPath", "/usr/bin/") modparam("snmpstats", "snmpCommunity", "mycommunity") modparam("snmpstats", "sipEntityType", "proxyServer") ``` On intense peaks of failed calls, get the call success metrics using `snmpwalk` : `snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n` > .1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 153 -> Total Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 4294967226 -> Active Calls .1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 223-> Error calls ### Additional Information **Kamailio Version**: `kamailio -v` > version: kamailio 5.6.4 (x86_64/linux) a004cf 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_S R_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, U SE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SI ZE 65535, DEFAULT PKG_SIZE 64MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: a004cf compiled on 16:10:41 May 22 2023 with gcc 4.4.7 * **Operating System**: `uname -r` > 2.6.32-279.el6.x86_64 `lsb_release -a` > LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch Distributor ID: RedHatEnterpriseServer Description: Red Hat Enterprise Linux Server release 6.3 (Santiago) Release: 6.3 Codename: Santiago -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/4006 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/4006(a)github.com>

2 5

[kamailio/kamailio] Wrong Route header order in called party re-INVITE when using topos (Issue #3778)
by Javi Montoro 24 Feb '25

24 Feb '25

Hi There, We found a situation where topos seems to break, let me explain... Assuming the following scenario: ``` Caller ---- Callee A: ------INVITE-----> Record-Route:A.A.A.A, Record-Route:B.B.B.B B: <-----200 OK------ C: <-----INVITE------ Route: A.A.A.A, B.B.B.B D: ------200 OK-----> Record-Route:B.B.B.B, Record-Route:A.A.A.A (reversed order) E: <======INVITE===== Route: B.B.B.B, A.A.A.A (wrong) ``` A and B establish the connection from caller to callee, and topos works fine. C (re-INVITE from callee) sends the Route header according to the Record-Routes from the original INVITE (A) D is the 200 OK sent from the caller to the first re-INVITE (C) coming from the callee, with the Record-Route headers reversed, because is the order in which the callee received them; and according to the RFC it's working as intended: ``` When a UAS responds to a request with a response that establishes a dialog (such as a 2xx to INVITE), the UAS MUST copy all Record-Route header field values from the request into the response (including the URIs, URI parameters, and any Record-Route header field parameters, whether they are known or unknown to the UAS) and MUST maintain the order of those values. [...] [When a UAC receives a response...] The route set MUST be set to the list of URIs in the Record-Route header field from the response, taken in reverse order and preserving all URI parameters. ``` E takes the Route order from the last 200 OK ignoring they are in reversed order and assuming the top one is the first one, when it should be the other way around, sending to an IP address not reachable from the callee. And I think here is the issue, topos should not update the path on the Record-Routes from a 200 OK but if it does, it should take the reverse order When disabling topos, everything works fine, or with topos enabled, by setting rr_update=0 works for us, but what if there is a real path update, rr_update=0 wouldn't work for us anymore. The Kamailio version is 5.8.0-rc0 Let me know if you need more information. Thanks a lot, Javi -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3778 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3778(a)github.com>

5 16

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

sr-dev November 2024