nm-wlan - NetworkManager WLAN scripts

A few scripts to handle Wifi connections on a laptop.

Scripts

/etc/NetworkManager/dispatcher.d/99-wlan

Usage: 99-wlan IFACE ACTION

• Disable WiFi when a wired connection comes up.
• Re-enable WiFi when the wired connection goes down again.
• When a WiFi connection CONN_NAME comes up, run wlan-up.d/CONN_NAME if it exists.

Triggered by any wired interface, so really only useful for laptops with one interface.

/etc/NetworkManager/dispatcher.d/wlan-up.d/default

Default script to run if a WiFi connection comes up and there is no explicit script for the network.

/etc/NetworkManager/dispatcher.d/wlan-up.d/scripts/disable_ipv6.sh

Usage: disable_ipv6 [IFACE [ACTION [CONN_NAME] ] ]

Helper script to disable IPv6 on the given interface.

Installation

Install the dispatcher.d files in /etc/NetworkManager/dispatcher.d, owned by root.

rsync -av dispatcher.d/ /etc/NetworkManager/dispatcher.d/
chown -R root: /etc/NetworkManager/dispatcher.d

Usage

The 99-wlan should get called automatically.

To execute custom actions for when a WiFi network FOO comes up, create a script in /etc/NetworkManager/wlan-up.d/FOO. For example, if you want to disable IPv6 on network FOO:

sudo dd of=/etc/NetworkManager/wlan-up.d/FOO <'EOF'
#!/bin/sh

disable_ipv6.sh "$@"
EOF
sudo chmod +x /etc/NetworkManager/wlan-up.d/FOO
sudo chown root: /etc/NetworkManager/wlan-up.d/FOO