[kamailio/kamailio] Advertise in listen directive still gives port in headers even though it's not set or set to 0 (Issue #3933)
26 Jul
2024
26 Jul
'24
3:51 a.m.
Reopening.
(https://github.com/kamailio/kamailio/issues/3932#issuecomment-2252138364)
It's bug.
Please see highlighted on screenshot.
Hey Team,
Thank you for the awesome software
### Description
Neither option work:
`listen=... advertise some.custom.hostname.io`
`listen=... advertise some.custom.hostname.io:0`
to make Kamailio present only hostname(without port) in Record-Route headers, affects
NAPTR/SRV.
### Troubleshooting
============
_Hostname without port - still gives port 5081 in Record-Route_
**kamailio.cfg**
...
`listen=tls:KAM_LOC_IP:5081 advertise some.custom.io name
"provider_socket_tls"`
...
**sngrep, 200 OK for INVITE**
...
`Record-Route: <sip:some.custom.io:5081;transport=tls;r2=on;lr;did=494.6e51>`
...
**kamcmd corex.list_sockets**
...
```
{
af: IPv4
proto: tls
name: 172.17.57.164
addrlist: {
addr: 172.17.57.164
}
port: 5081
sockstr: tls:172.17.57.164:5081
mcast: no
mhomed: no
virtual: no
sockname: provider_socket_tls
advertise: tls:some.custom.io:0
}
```
...
========
_Hostname with port 0 - still gives port 5081 in Record-Route_
kamailio.cfg
...
`listen=tls:KAM_LOC_IP:5081 advertise some.custom.io:0 name
"provider_socket_tls"`
...
sngrep, 200 OK for INVITE
...
`Record-Route: <sip:some.custom.io:5081;transport=tls;r2=on;lr;did=042.7721>`
...
kamcmd corex.list_sockets
...
```
{
af: IPv4
proto: tls
name: 172.17.57.164
addrlist: {
addr: 172.17.57.164
}
port: 5081
sockstr: tls:172.17.57.164:5081
mcast: no
mhomed: no
virtual: no
sockname: provider_socket_tls
advertise: tls:some.custom.io:0
}
```
...
============
_Hostname with explicit different port 8888 - gives that port 8888 in Record-Route (to
confirm config works)_
kamailio.cfg
...
`listen=tls:KAM_LOC_IP:5081 advertise some.custom.io:8888 name
"provider_socket_tls"`
...
sngrep, 200 OK for INVITE
...
`Record-Route: <sip:some.custom.io:8888;transport=tls;r2=on;lr;did=dae.ac31>`
...
kamcmd corex.list_sockets
...
```
{
af: IPv4
proto: tls
name: 172.17.57.164
addrlist: {
addr: 172.17.57.164
}
port: 5081
sockstr: tls:172.17.57.164:5081
mcast: no
mhomed: no
virtual: no
sockname: provider_socket_tls
advertise: tls:some.custom.io:8888
}
```
...
#### Reproduction
Please see Troubleshooting section
#### Debugging Data
Please see Troubleshooting section
#### Log Messages
N/A
#### SIP Traffic
Please see Troubleshooting section
### Possible Solutions
N/A
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.8.2 (x86_64/linux) dbe51d
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: dbe51d
compiled on 07:13:22 Jul 17 2024 with gcc 12.2.0)
```
* **Operating System**:
```
[dev]root@[voiceproxy]:~# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
[dev]root@[voiceproxy]:~# uname -a
Linux i-0875d7720d6152612 6.1.0-23-cloud-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.99-1
(2024-07-15) x86_64 GNU/Linux
[dev]root@[voiceproxy]:~# cat /etc/*relea*
ID=ec2
VERSION="20240702-1796"
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
```
* **Might be related** :
https://github.com/kamailio/kamailio/issues/1884
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12 Aug
12 Aug
6:43 p.m.
Hey Team, Let me know if this ticket would benefit of any additional
information/clarification. Thank you.
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9 Sep
9 Sep
4:38 a.m.
I jus tested with latest 5.8 and master branches and all is fine -- the advertise is a
hostname without port or with port 0 and the Via and Record-Route do not have any port in
it.
Can you retest with these versions and see if headers are ok? If not, be sure you
don't use other functions to add record route where the port is explicitly provided.
Otherwise, you may have to provide the config in order to see what is specific to it.
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11 Sep
11 Sep
7:10 a.m.
Preparing config.
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12 Sep
12 Sep
1:39 a.m.
Re-tested on latest Master:
```
# kamailio -V
version: kamailio 6.0.0-dev2 (x86_64/linux) 2bcd29
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: 2bcd29
compiled on 02:01:14 Sep 12 2024 with gcc 12.2.0
```
Script to prepare config:
```
# cat cfg_prep.sh
#!/bin/bash
KAM_LOCAL_IPV4=${1:-"192.168.0.114"}
mkdir -p /etc/kamailio/
curl -s https://raw.githubusercontent.com/kamailio/kamailio/master/etc/kamailio.cfg -o
/etc/kamailio/kamailio.cfg_orig_master
sed -e "s|# listen=udp:10.0.0.10:5060|# listen=udp:10.0.0.10:5060\n\
listen=udp:${KAM_LOCAL_IPV4}:5060 advertise name3 name \"sockname3\"\n\
listen=udp:${KAM_LOCAL_IPV4}:5070 advertise name2:0 name \"sockname2\"\n\
listen=udp:${KAM_LOCAL_IPV4}:5080 advertise name1 name \"sockname1\"\n\
|g" \
-e 's|# - define WITH_PSTN|#!define WITH_PSTN|g' \
-e 's|pstn.gw_ip = "" desc "PSTN GW Address"|pstn.gw_ip =
"8.8.8.8" desc "PSTN GW Address"|g' \
-e 's|pstn.gw_port = "" desc "PSTN GW Port"|pstn.gw_port =
"5081" desc "PSTN GW Port"|g' \
-e 's|# normalize target number for pstn gateway|$fsn =
"sockname1";|g' \
/etc/kamailio/kamailio.cfg_orig_master
```
To generate config issue the following(where 192.168.2.22 is local Kamailio ipv4):
```
bash ./cfg_prep.sh 192.168.2.22 > /etc/kamailio.cfg
```
Call from somewhere to udp:kamailio_ip:5070
This is export from sngrep while testing:
```
2024/09/12 05:18:10.163960 192.168.1.201:63333 -> 192.168.1.114:5070
INVITE sip:00111111@192.168.1.114:5070 SIP/2.0
Via: SIP/2.0/UDP
192.168.1.201:63333;rport;branch=z9hG4bKPjKODU-8Rj6qEaa0zRs8y8YIXZizScJ0w9
Max-Forwards: 70
From: "www" <sip:fff@192.168.1.114>;tag=DFPm.aaF4b7t-6i.D4iPRlVKDhsERLmh
To: sip:00111111@192.168.1.114
Contact: "www" <sip:fff@192.168.1.201:63333;ob>
Call-ID: IWoCmeJg5FuclMQJxrRPYiEp.bKObBxV
CSeq: 26703 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE,
OPTIONS
Supported: replaces, 100rel, norefersub
User-Agent: Telephone 1.6
Content-Type: application/sdp
Content-Length: 348
v=0
o=- 3935107090 3935107090 IN IP4 192.168.1.201
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 4004 RTP/AVP 8 0 101
c=IN IP4 192.168.1.201
b=TIAS:64000
a=rtcp:4005 IN IP4 192.168.1.201
a=sendrecv
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ssrc:566268823 cname:02ea4a2263a8ffac
2024/09/12 05:18:10.165079 192.168.1.114:5070 -> 192.168.1.201:63333
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP
192.168.1.201:63333;rport=63333;branch=z9hG4bKPjKODU-8Rj6qEaa0zRs8y8YIXZizScJ0w9;received=192.168.1.201
From: "www" <sip:fff@192.168.1.114>;tag=DFPm.aaF4b7t-6i.D4iPRlVKDhsERLmh
To: sip:00111111@192.168.1.114
Call-ID: IWoCmeJg5FuclMQJxrRPYiEp.bKObBxV
CSeq: 26703 INVITE
Server: kamailio (6.0.0-dev2 (x86_64/linux))
Content-Length: 0
2024/09/12 05:18:10.165566 192.168.1.114:5080 -> 8.8.8.8:5081
INVITE sip:+111111@8.8.8.8:5081 SIP/2.0
Record-Route: <sip:name1:5080;r2=on;lr>
Record-Route: <sip:name2:5070;r2=on;lr>
Via: SIP/2.0/UDP name1:5080;branch=z9hG4bK9e32.8824aa0f912d2eef54ed88beef9ccede.0
Via: SIP/2.0/UDP
192.168.1.201:63333;received=192.168.1.201;rport=63333;branch=z9hG4bKPjKODU-8Rj6qEaa0zRs8y8YIXZizScJ0w9
Max-Forwards: 69
From: "www" <sip:fff@192.168.1.114>;tag=DFPm.aaF4b7t-6i.D4iPRlVKDhsERLmh
To: sip:00111111@192.168.1.114
Contact: "www" <sip:fff@192.168.1.201:63333;ob>
Call-ID: IWoCmeJg5FuclMQJxrRPYiEp.bKObBxV
CSeq: 26703 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE,
OPTIONS
Supported: replaces, 100rel, norefersub
User-Agent: Telephone 1.6
Content-Type: application/sdp
Content-Length: 348
v=0
o=- 3935107090 3935107090 IN IP4 192.168.1.201
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 4004 RTP/AVP 8 0 101
c=IN IP4 192.168.1.201
b=TIAS:64000
a=rtcp:4005 IN IP4 192.168.1.201
a=sendrecv
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ssrc:566268823 cname:02ea4a2263a8ffac
```
We can see ports are present in headers:
```
Record-Route: <sip:name1:5080;r2=on;lr>
Record-Route: <sip:name2:5070;r2=on;lr>
Via: SIP/2.0/UDP name1:5080;branch=z9hG4bK9e32.8824aa0f912d2eef54ed88beef9ccede.0
Via: SIP/2.0/UDP
192.168.1.201:63333;received=192.168.1.201;rport=63333;branch=z9hG4bKPjKODU-8Rj6qEaa0zRs8y8YIXZizScJ0w9
```
@miconda
Thank you
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16 Sep
16 Sep
4:50 a.m.
Can you try with latest git master branch?
I could reproduce when it was bridging between sockets and different ports. Let's see
if works as expected.
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1
days inactive
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days old
5 comments
2 participants
participants (2)
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Daniel-Constantin Mierla -
Evgenii Buchnev