In this repository you'll find my OpenWRT configuration.
The router I've chose is the GL-AR750S. Some of the reasons for this are the small form factor and the low power consumption (my current setup +-3W). Besides that it ships with OpenWRT installed out of the box. The extra benefit is that it's very hackable because it has a I2C port and some extra GPIO ports available.
As you might notice in some of the config files I'm using variables for some sesitive information like MAC addresses or passwords. These are all defined as environment variables in the .secrets file which is encrypted using git-crypt. To give you an idea how this secret file looks once decrypted you can see the snippet below:
export WIFI_2G_PASSWORD=passhere
export WIFI_5G_PASSWORD=passhere
# accounts
export MQTT_USER=myuser
export MQTT_PASSWORD=mypassword
export MQTT_HOST=192.168.8.101
# device mac addresses
export MAC_RPI_HOMEASSISTANT_ETH="00:00:00:00:00:00"
export MAC_HUE_BRIDGE_ETH="00:00:00:00:00:01"
export MAC_PHONE_WIM_WIFI="00:00:00:00:00:02"
If you have a home automation system on your network it could be useful to send events to a MQTT broker based on events happening on your router.
mosquitto_pub -h $MQTT_HOST -u $MQTT_USER -P $MQTT_PASSWORD -t "homeassistant/openwrt/started" -m "${HOSTNAME}" -p 1883
Create a script in /etc/hotplug.d/button/99-buttons with following content:
source /root/.secrets
logger -t gpio "${BUTTON} state changed to ${ACTION}"
mosquitto_pub -h $MQTT_HOST -u $MQTT_USER -P $MQTT_PASSWORD -t "openwrt/gpio/${BUTTON}" -m "${ACTION}" -p 1883
This script will automatically trigger MQTT events based on buttons pressed on the router.
List of the packages I'm using and the reason why:
- luci-app-simple-adblock: Block ads and trackers
- Install mounts for external antenna
- Get SSL working for admin panel
- Do a duplicate IP check in validate (cat config/dhcp| grep 'option ip' | sort) not sure if uci already does this
- ED25519 ssh keys are not supported out of the box so don't try to use them. More info