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//usr/libexec/scripts/linux/hal-system-wol-linux

#!/bin/bash
#
# Copyright (C) 2007 Holger Macht <holger@homac.de>
#
# Author: Holger Macht <holger@homac.de>
#
# This file is released under the GPLv2.
#

SUPPORT_FLAGS=
IFACE="$HAL_PROP_NET_INTERFACE"

wol_get_flags() {
    SUPPORT_FLAGS=`ethtool $IFACE | awk '/Supports Wake-on:/{if ($3 ~ /g/) print $3 }'`
    [ -n "$SUPPORT_FLAGS" ] && return 0
    echo "org.freedesktop.Hal.Device.WakeOnLAN.NotSupported" >&2
    echo "Network interface does not support Wake On LAN" >&2
    exit 1
}

wol_supported() {
    wol_get_flags
    [ -n "$SUPPORT_FLAGS" ] && return 0
    return 1
}

wol_enabled() {
    ENABLED=`ethtool $IFACE | awk '/[^s ]Wake-on:/{if ($2 ~ /g/) print $2 }'`
    [ -n "$ENABLED" ] && return 0
    return 1
}

wol_enable() {
    wol_get_flags

if [ -z "$SUPPORT_FLAGS" ]; then
	echo "No support flags set, using default: g"
	SUPPORT_FLAGS=g
    fi

ethtool -s $IFACE wol $SUPPORT_FLAGS
    if [ "$?" != "0" ]; then
	echo "error enabling wake on LAN for interface $IFACE"
	return 1
    fi
}

wol_disable() {
    ethtool -s $IFACE wol d
    if [ "$?" != "0" ]; then
	echo "error disabling wake on LAN for interface $IFACE"
	return 1
    fi
}

which ethtool >/dev/null 2>&1
if [ "$?" != "0" ]; then
    echo "org.freedesktop.Hal.Device.WakeOnLan.NoEthtool" >&2
    echo -e "No ethtool found in \$PATH" >&2
    exit 1
fi

case "`basename $0`" in
    hal-system-wol-supported-linux)
	wol_supported
	;;
    hal-system-wol-enabled-linux)
	wol_enabled
	;;
    hal-system-wol-enable-linux)
	if [ "$enable" = "true" ]; then
	    wol_enable
	elif [ "$enable" = "false" ]; then
	    wol_disable
	else
	    echo "org.freedesktop.Hal.Device.WakeOnLAN.InvalidArgument" >&2
	    echo "argument must be of boolean type" >&2
	    exit 1
	fi
	;;
    *) ;;
esac

exit $?