# include configuration
. /opt/etc/vbox-network

IF_FD="$1"
IF_NAME="$2"

# get the user running vbox
if [ "$SUDO_USER" = "" ]; then
	VBOX_USER=$USER
else
	VBOX_USER=$SUDO_USER
fi

# errors
NO_ERROR=0
E_ERROR=1
E_NOT_ROOT=2
E_TUNCTL_CREATE=3
E_BAD_CALLNAME=4

function create_iface
{
	# need to be root
	[ "$UID" = "0" ] || return $E_NOT_ROOT

	# create the interface
	TUNCTL_CMD="$TUNCTL -b -u $VBOX_USER"
	[ "$IF_NAME" = "" ] || TUNCTL_CMD="$TUNCTL_CMD -t $IF_NAME"
	IF=$( $TUNCTL_CMD )	
	[ -z "$IF" ] && return $E_TUNCTL_CREATE

	# bring it up
	$IFCONFIG $IF up >> /dev/null

	# bridge it
	$BRCTL addif $BRIDGE $IF >> /dev/null

	echo $IF
	return $NO_ERROR
}

function delete_iface
{
	# need to be root
	[ "$UID" = "0" ] || return $E_NOT_ROOT

	# unbridge
	$BRCTL delif $BRIDGE $IF_NAME >> /dev/null

	# delete
	$TUNCTL -d $IF_NAME >> /dev/null
}