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We've got a Kamailio setup on Ubuntu 20.04 with multiple TLS sockets: 5061 for SIPS, 8088 for WSS. When checking the received socket or port in the onreply_route for a packet received on the SIPS port, $Rn, $Rn, and $Rut contain information taken from the socket defined first in the configuration file. Swapping the listen statements in the attached minimal configuration leads to the respective other set of information being contained in the variables. The issue is reproducable with at least 5.7.0 and 5.7.1.
I've attached a (very) stripped down version of our configuration. The outline is as follows:
request_route relaying everything to another hardcoded SIP server – I've attached a SIPp scenario for the UAS rolereply_route printing $Rp, $Rn, and $Rut – at this point the issue has already occured, no further processing is necessaryWith the listen directive for the wss socket above the directive for the tls socket, all inbound packets on port 5061 are logged as being received on the wss socket.
In the setup to reproduce the issue, 192.168.100.2 is the kamailio server and 192.168.100.123 is the machine running the UAS on port 5061 and the UAC starting the call.
To reproduce, start Kamailio with the provided configuration file minimal.cfg. I've used the following command line:
/usr/sbin/kamailio -P /tmp/kamailio.pid -f minimal.cfg -E -e -m 512 -M 128 --atexit=no -DD
Then, run the SIPp UAS scenario
uas_tls.xml with
sipp -sf ~/ucware/sipp/scenarios/uas_tls.xml -trace_msg -trace_err -trace_logs -t l1 -i 192.168.100.123 -p 5061 -m 1
Lastly, start a call using the SIPp scenario
wrong_port_call.xml with
sipp -sf wrong_port_call.xml -m 1 -trace_msg -trace_err 192.168.100.2:5060
version: kamailio 5.7.1 (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 9.4.0
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
$ uname -a
Linux kamailiotest 5.4.0-159-generic #176-Ubuntu SMP Mon Aug 14 12:04:20 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
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