#!/bin/bash

# firewall, a simple init.d script for configuring iptables
# Copyright (C) 2006-2007  Daniel Kinzler, brightbyte.de
#
# Expects config files created with iptables-save in /etc/iptables/
#
# == MIT License ==
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

if [[ "$1" == status ]] ; then
  iptables -L -v
elif [[ "$1" == restart ]]; then
  "$0" stop
  "$0" start
elif [[ "$1" == reset ]] ; then
  echo -n "Resetting firewall: "
  iptables -F
  iptables -P INPUT ACCEPT
  iptables -P OUTPUT ACCEPT
  echo "done."
else
  echo -n "Applying firewall rules ($1): "
  /etc/iptables/kernel
  
  if [ -e /etc/iptables/"$1" ]; then
	iptables-restore /etc/iptables/"$1"
	if [ $? -eq 0 ]; then
		echo "OK"
	else
		echo "failed!"
		exit 5
	fi
  else 
	echo "not found: /etc/iptables/$1"
	exit 3
  fi
fi