### Description
I encountered an issue with a specific device that is receiving a T.38 fax. The call gets established towards the device normally with inband media, then the device requests T.38 media and tries to remove the audio media via sending port 0 in the ReInvite SDP. Also it sends connection-information only on the media level and there is no "c=" on the session level.
Reading through the related RFCs and the kamailio code and discussing this on the mailing list, we came to the conclusion that kamailio is doing everything correct as per RFC. Though we were wondering if it would be possible to adjust the parser to be not as strict as it is right now, and allow a missing "c=" line on the media-level if the stream is removed/rejected via port 0, since i see no sense in requiring connection information. Of course we are also in contact with the vendor to hopefully adjust on their side.
Here are the related RFCs:
1. RFC8866 5.7
`A session description MUST contain either at least one "c=" line in each media description or a single "c=" line at the session level. It MAY contain a single session-level "c=" line and additional media-level "c=" line(s) per-media-description, in which case the media-level values override the session-level settings for the respective media.`
2. RFC3264 8.2
`Existing media streams are removed by creating a new SDP with the port number for that stream set to zero. The stream description MAY omit all attributes present previously, and MAY list just a single media format.`
At first i was especially confused by the RFC3264 8.2 part, since it seemed correct what the device is sending, but if you read carefully and keep the wording for SDP in mind only attributes ("a=") MAY be omitted. So a "c=" line should still be in the SDP for the removed media if it's not included on the session-level. Or do you see this differently?
### Expected behavior
Kamailio allows and parses the SDP when there is no session-wide "c=", a media stream is being removed via port zero and there is no "c=" for this media stream and only the remaining media streams include a "c=" line.
#### Actual observed behavior
Kamailio throws an error when trying to parse the SDP.
#### Log Messages
```
<core> [core/parser/sdp/sdp.c:523]: parse_sdp_session(): can't find media IP in the message
```
#### SIP Traffic
```
v=0
o=xmserver 1726638425 1726638427 IN IP4 169.254.1.1
s=xmserver
t=0 0
m=audio 0 RTP/AVP 8
m=image 56002 udptl t38
c=IN IP4 169.254.1.1
a=sendrecv
a=T38FaxVersion:0
a=T38MaxBitRate:14400
a=T38FaxFillBitRemoval:0
a=T38FaxTranscodingMMR:0
a=T38FaxTranscodingJBIG:0
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:200
a=T38FaxMaxDatagram:72
a=T38FaxUdpEC:t38UDPRedundancy
```
### Possible Solutions
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.8.3 (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_SEND_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 12
Linux hostname 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
```
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### 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 got a core dump, use gdb to extract troubleshooting data - full backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
bt full
info locals
list
If you are familiar with gdb, feel free to attach more of what you consider to
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```
If you let me know what would be interesting for tracking this down, i am happy to provide logs/debugging data!
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
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
```
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#### 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.patchhttps://github.com/kamailio/kamailio/pull/3925.diff
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### Description
It seems that the fixup_free_* functions are not getting called when used with:
```
static cmd_export_t cmds[] = {
{"acc_log_request", (cmd_function)w_acc_log_request, 1,
acc_fixup, free_acc_fixup,
ANY_ROUTE},
// ...
{0, 0, 0, 0, 0, 0}
};
static int free_acc_fixup(void **param, int param_no)
{
LM_CRIT("acc free fixup = %d\n", param_no);
if(*param) {
pkg_free(*param);
*param = 0;
}
return 0;
}
```
Nothing is getting logged from the function. Is this expected not to print in free_fixup due to the destruction of kamailio and the logging is not reliable?
I also used gdb and added some breakpoints in `fixup` and `free_fixup` functions in some other modules (file_out) and the breakpoint was only found in `fixup` but not in `free_fixup`.
When is the `free_fixup` supposed to be called, at kamailio destruction or after fixing it and before the main loop starts?
<!--
Explain what you did, what you expected to happen, and what actually happened.
-->
### Troubleshooting
#### Reproduction
<!--
If the issue can be reproduced, describe how it can be done.
-->
Use any module that has a custom (maybe also provided from core) `free_fixup` function, and monitor if `free_fixup` is called using debug mode.
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
Apr 15 15:52:03 app01 kamailio[812169]: INFO: <core> [core/mem/q_malloc.c:402]: qm_malloc(): qm_malloc(0x7fcdcab18010, 56) called from file_out: file_out.c: fo_fixup_str_index(287)
Apr 15 15:52:03 app01 kamailio[812169]: INFO: <core> [core/mem/q_malloc.c:449]: qm_malloc(): qm_malloc(0x7fcdcab18010, 64) returns address 0x7fcdcacc4280 frag. 0x7fcdcacc4240 (size=64) on 1 -th hit```
`0x7fcdcacc4240` fragment is not found anywhere in the logs reported that it was freed unlike other malloced resources.
```
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.9.0-dev0 (x86_64/linux) 8bc64a
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_SEND_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: 8bc64a
compiled on 15:32:09 Apr 15 2024 with gcc 10.5.0
```
* **Operating System**:
<!--
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Kernel details (output of `lsb_release -a` and `uname -a`)
-->
```
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
5.4.0-176-generic #196-Ubuntu SMP Fri Mar 22 16:46:39 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
```
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### Description
`secf_check_sqli_all();` block requests when a single quote is present in From name :
```
From: "O'Reilly" <sip:100@example.net>;tag=abcd
```
Since single quotes are frequent in names.
It makes it difficult to use this function.
### Possible Solutions
A solution would be to skip single quote check in From name.
I'll write the PR if you are OK with this solution
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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.
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Hi team, i got this issue when i change network connection
connect and disconnect wifi or lan
this is log
09-25 11:31:17.826 4510 4510 E kamailio: ERROR: <core> [core/tcp_main.c:3955]: handle_new_connect(): error while accepting connection(22): Invalid argument
09-25 11:31:22.019 4510 4510 I chatty : uid=0(root) kamailio identical 45884 lines
09-25 11:31:22.022 4510 4510 E kamailio: ERROR: <core> [core/tcp_main.c:3955]: handle_new_connect(): error while accepting connection(22): Invalid argument
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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.
<!-- Kamailio Pull Request Template -->
<!--
IMPORTANT:
- for detailed contributing guidelines, read:
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of fixes from master branch to a stable branch
- backports to stable branches must be done with 'git cherry-pick -x ...'
- code is contributed under BSD for core and main components (tm, sl, auth, tls)
- code is contributed GPLv2 or a compatible license for the other components
- GPL code is contributed with OpenSSL licensing exception
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#### Pre-Submission Checklist
<!-- Go over all points below, and after creating the PR, tick all the checkboxes that apply -->
<!-- All points should be verified, otherwise, read the CONTRIBUTING guidelines from above-->
<!-- If you're unsure about any of these, don't hesitate to ask on sr-dev mailing list -->
- [x] Commit message has the format required by CONTRIBUTING guide
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- [ ] 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:
<!-- Go over all points below, and after creating the PR, tick the checkboxes that apply -->
- [ ] PR should be backported to stable branches
- [ ] Tested changes locally
- [ ] Related to issue #XXXX (replace XXXX with an open issue number)
#### Description
<!-- Describe your changes in detail -->
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.patchhttps://github.com/kamailio/kamailio/pull/3766.diff
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- backports to stable branches must be done with 'git cherry-pick -x ...'
- code is contributed under BSD for core and main components (tm, sl, auth, tls)
- code is contributed GPLv2 or a compatible license for the other components
- GPL code is contributed with OpenSSL licensing exception
-->
#### Pre-Submission Checklist
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<!-- All points should be verified, otherwise, read the CONTRIBUTING guidelines from above-->
<!-- If you're unsure about any of these, don't hesitate to ask on sr-dev mailing list -->
- [x] Commit message has the format required by CONTRIBUTING guide
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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:
<!-- Go over all points below, and after creating the PR, tick the checkboxes that apply -->
- [x] PR should be backported to stable branches
- [x] Tested changes locally
- [ ] Related to issue #XXXX (replace XXXX with an open issue number)
#### Description
<!-- Describe your changes in detail -->
This PR fixes a bug in pseudo-variables related to "From" and "To" headers and changing the `Display Name` through `$tu/$fu/$fn/$tn`.
According to standard the URI must be enclosed in <> if a `Display Name` is given, but it may or may NOT if no display name is present.
So, if one tries to modify the `from`/`to` header with an initial empty display name and URI that is NOT enclosed in <>, it yields an invalid message.
This PR makes sure that if URI was not enclosed in <> and display name is modified, that will wrap URI in <>.
You can view, comment on, or merge this pull request online at:
https://github.com/kamailio/kamailio/pull/3935
-- Commit Summary --
* pv: Ensure URI enclosed in <> when changing Display Name
-- File Changes --
M src/modules/pv/pv_core.c (62)
-- Patch Links --
https://github.com/kamailio/kamailio/pull/3935.patchhttps://github.com/kamailio/kamailio/pull/3935.diff
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