#!/bin/bash -x

# id of the user running qemu (kvm). Make sure you change it appropriately.
USERID=1000

# number of TUN/TAP devices to setup
NUM_OF_DEVICES=1

case $1 in
start)
	modprobe tun
	/etc/init.d/vtun start
	chmod a+rw /dev/net/tun
	echo -n "Setting up bridge device br0"
	brctl addbr br0
	ifconfig br0 192.168.99.1 netmask 255.255.255.0 up
	for ((i=0; i < NUM_OF_DEVICES ; i++)); do
		echo -n "Setting up "
		tunctl -b -u $USERID -t qtap$i
		brctl addif br0 qtap$i
		ifconfig qtap$i up 0.0.0.0 promisc
	done
	;;
stop)
	for ((i=0; i < NUM_OF_DEVICES ; i++)); do
		ifconfig qtap$i down
		brctl delif br0 qtap$i
		tunctl -d qtap$i
	done
	ifconfig br0 down
	brctl delbr br0
	/etc/init.d/vtun stop
	;;
*)
	echo "Usage: $(basename $0) (start|stop)"
	;;
esac