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#!/bin/bash
# Author: Steven Shiau <steven _at_ clonezilla org>
# License: GPL
#
# To arm wake on LAN for NIC in DRBL client.
#
# chkconfig: 2345 99 99
# description: To arm wake on LAN for NIC in DRBL client before it poweroffs.
# Author: Steven Shiau <steven _at_ clonezilla org>
# License: GPL
#
# For SuSE insserv
### BEGIN INIT INFO
# Provides: arm-wol
# Required-Start:
# Required-Stop:
# X-UnitedLinux-Should-Start:
# X-UnitedLinux-Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description: To arm wake on LAN for NIC in DRBL client before it poweroffs.
### END INIT INFO
# Append a default search path.
PATH="$PATH:/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin"
export PATH
#
if [ ! "$UID" = "0" ]; then
echo
echo "[$LOGNAME] You need to run this script \"`basename $0`\" as root."
echo
exit 1
fi
# Exclude some devices, like lo, sit0, vmnet... It's regular expression.
exluding_dev="(lo|sit[0-9]+|vmnet)"
export LC_ALL=C
if [ -d /sys/class/net/ ]; then
# kernel support sysfs, so get the NIC devices from /sys
NETDEVICES="$(unalias ls &>/dev/null; ls /sys/class/net/ | grep -v -E "$exluding_dev")"
elif [ -f /proc/net/dev ]; then
# kernel do not support sysfs, so get the NIC devices from /proc
NETDEVICES="$(cat /proc/net/dev | grep "^.*:" | cut -d: -f1 | grep -v -E "$exluding_dev")"
else
echo "Network interface card is not found in /sys/class/net/ or /proc/net/dev!"
echo "Program terminated!"
exit 1
fi
echo -n "Trying to arm the wake on LAN for "
RETVAL=0
for nic in $NETDEVICES; do
echo -n "$nic... "
ethtool -s $nic wol g &> /dev/null
RETVAL="$((RETVAL+$?))"
done
echo "done!"
exit $RETVAL
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