Websockets - bind address/host in listener doesn't work for websockets protocol

[Dobiesław Chabrzyk]

1. Tested on RaspberryPi, Mosquitto version 2.0.11

2. Application doesn't respect the bind address/host option for listener parameter when using websockets protocol. After changing protocol to MQTT everything works fine.

3. Tested configuration entry
   listener 9001 127.0.0.1
   protocol websockets

4. netstat output
   masta@rpi-masta:/etc/mosquitto $ sudo netstat -tulnp | grep mosquitto
   tcp 0 0 127.0.0.1:1883 0.0.0.0:* LISTEN 3583/mosquitto
   tcp6 0 0 :::9001 :::* LISTEN 3583/mosquitto

[Tobias Assarsson]

is that the whole configuration?

listener 9001 127.0.0.1
protocol websockets

[Tobias Assarsson]

running this tiny config in a container for 2.0.11 has the same issue. 2.0.12 does not.
not sure if this is a libwebsockets or mosquitto issue, but you could try go up a few mosquitto versions too.

[t-stamm]

I'm facing a similar issue except that I am using 2.0.18.

config is:
`allow_anonymous true
listener 1883
protocol mqtt

listener 1884
protocol websockets`

netstat shows successful connections on 1883 but nothing even listening on 1884, even though the log during starting states

Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: mosquitto version 2.0.18 starting
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: Config loaded from /etc/mosquitto/mosquitto.conf.
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: Opening ipv4 listen socket on port 1883.
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: Opening ipv6 listen socket on port 1883.
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: Warning: Address family not supported by protocol
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: Opening websockets listen socket on port 1884.
Jun 18 15:14:31 servername mosquitto[253693]: 1718723671: mosquitto version 2.0.18 running