#!/bin/bash
#
# init script for the Ethernet Bridge filter tables
#
# Written by Dag Wieers <dag@wieers.com>.
# Modified by Rok Papez <rok.papez@arnes.si>.
#
# chkconfig: - 15 85
# description: Ethernet Bridge filtering tables
#
# config: /etc/sysconfig/ebtables

source /etc/init.d/functions
source /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -x /sbin/ebtables ] || exit 1
[ -x /sbin/ebtables-save ] || exit 1
[ -x /sbin/ebtables-restore ] || exit 1

[ "$1" == "save" -o -r /etc/sysconfig/ebtables ] || exit 1

RETVAL=0
prog="ebtables"
desc="Ethernet bridge filtering"

start() {
	echo -n $"Starting $desc ($prog): "
	/sbin/ebtables-restore < /etc/sysconfig/ebtables || RETVAL=1

	if [ $RETVAL -eq 0 ]; then
		success "$prog startup"
		rm -f /var/lock/subsys/$prog
	else
		failure "$prog startup"
	fi

	echo
	return $RETVAL
}

stop() {
	echo -n $"Stopping $desc ($prog): "
	/sbin/ebtables -t filter --init-table || RETVAL=1
	/sbin/ebtables -t nat --init-table || RETVAL=1
	/sbin/ebtables -t broute --init-table || RETVAL=1

	for mod in $(grep -E '^(ebt|ebtable)_' /proc/modules | cut -f1 -d' ') ebtables; do
		rmmod $mod || RETVAL=1
	done

	if [ $RETVAL -eq 0 ]; then
		success "$prog shutdown"
		rm -f %{_localstatedir}/lock/subsys/$prog
	else
		failure "$prog shutdown"
	fi

	echo
	return $RETVAL
}

restart() {
	stop
	start
}

save() {
	echo -n $"Saving $desc ($prog): "
	/sbin/ebtables-save > /etc/sysconfig/ebtables || RETVAL=1

	if [ $RETVAL -eq 0 ]; then
		success "$prog saved"
	else
		failure "$prog saved"
	fi
	echo
}

case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  restart|reload)
	restart
	;;
  condrestart)
	[ -e /var/lock/subsys/$prog ] && restart
	RETVAL=$?
	;;
  save)
	save
	;;
  status)
	/sbin/ebtables-save
	RETVAL=$?
	;;
  *)
	echo $"Usage $0 {start|stop|restart|condrestart|save|status}"
	RETVAL=1
esac

exit $RETVAL