NetworkManager

When using NetworkManager, it is posible to start a VPN connection after a successful wireless connection.
I have autofs configured on my home directory, so I need to start autofs after VPN connection:
/etc/NetworkManager/dispatcher.d/10autofs

#!/bin/bash
SERVER='172.16.1.1'
# Nothing to do if user does not have requisite binaries.
ping -c 1 $SERVER &>/dev/null
if [ $? -ne 0 ]; then
        # server is down so unmount
        /etc/init.d/autofs stop
else
        # server is up
        /etc/init.d/autofs start
fi

Whenever a VPN or wireless disconnection ocurrs, I've to stop autofs:

/etc/NetworkManager/dispatcher.d/pre-down.d/autofs

#!/bin/bash

interface=$1 

status=$2

if [ "$interface" == "wlan0" ] || [ "$CONNECTION_ID" == "reyesdf-tap" ]; then

        for dir in $(mount | grep "/mnt/auto" | awk '{print $3}' | tail -n +2)

        do

            umount $dir

        done

        sleep 5

        /etc/init.d/autofs stop

fi

References for understanding the scripts:

https://wiki.archlinux.org/index.php/NetworkManager

https://developer.gnome.org/NetworkManager/unstable/NetworkManager.html