#!/bin/sh
### BEGIN INIT INFO
# Provides:          cal-scripts-firewall
# Required-Start:    $network $local_fs
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Startup script for setting up and down the firewall
# Description:       <Enter a long description of the software>
#                    <...>
#                    <...>
### END INIT INFO
#
# 
#
# Introduce a short description here
DESC="Startup script for setting up and down the firewall" 
NAME=firewall                 # Introduce the short server's name here
DAEMON=/etc/init.d/iptablesv3 # iptables rules file
SCRIPTNAME=/etc/init.d/$NAME


IPTABLES=/sbin/iptables
RULES=$DAEMON                 #For compatability

# Exit if don't exist rules
[ -x $DAEMON ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
        $DAEMON || return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	$IPTABLES --flush
	$IPTABLES --delete-chain
	$IPTABLES --policy INPUT ACCEPT
	$IPTABLES --policy OUTPUT ACCEPT
	$IPTABLES --policy FORWARD ACCEPT
	return 0
}

case $1 in
    start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC " "$NAME"
	do_start
	case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
    stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
    status)
	log_daemon_msg "Status not implemented for $DESC " "$NAME"
	log_end_msg 0 
	;;
   restart|force-reload)
	log_daemon_msg "Restarting $DESC" "$NAME"
	$0 stop
	$0 start
	case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
    *)
	echo "usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac
