#!/bin/sh

###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2013                                                          #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################
# Author: Alexander Marx (amarx@ipfire.org)                                   #
###############################################################################


eval $(/usr/local/bin/readhash /var/ipfire/forward/settings)
eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)

iptables -F POLICYFWD
iptables -F POLICYOUT
iptables -F POLICYIN

if [ -f "/var/ipfire/red/iface" ]; then
	IFACE=`cat /var/ipfire/red/iface`
fi

#FORWARDFW
if [ "$POLICY" == "MODE1" ]; then
		if [ "$FWPOLICY" == "REJECT" ]; then
			if [ "$DROPFORWARD" == "on" ]; then
				/sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "REJECT_FORWARD"
			fi
			/sbin/iptables -A POLICYFWD -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_FORWARD"
		fi
		if [ "$FWPOLICY" == "DROP" ]; then
			if [ "$DROPFORWARD" == "on" ]; then
				/sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
			fi
			/sbin/iptables -A POLICYFWD -j DROP -m comment --comment "DROP_FORWARD"
		fi
else
	if [  "$BLUE_DEV" ] && [ "$IFACE" ]; then
		/sbin/iptables -A POLICYFWD -i blue0 ! -o $IFACE -j DROP 
	fi
	/sbin/iptables -A POLICYFWD -i orange0 ! -o $IFACE -j DROP
	/sbin/iptables -A POLICYFWD -j ACCEPT 
	/sbin/iptables -A POLICYFWD -m comment --comment "DROP_FORWARD" -j DROP
fi

#OUTGOINGFW
if [ "$POLICY1" == "MODE1" ]; then
	if [ "$FWPOLICY1" == "REJECT" ]; then
		if [ "$DROPOUTGOING" == "on" ]; then
			/sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "REJECT_OUTPUT"
		fi
		/sbin/iptables -A POLICYOUT -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_OUTPUT"
	fi
	if [ "$FWPOLICY1" == "DROP" ]; then
		if [ "$DROPOUTGOING" == "on" ]; then
			/sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_OUTPUT"
		fi
			/sbin/iptables -A POLICYOUT -j DROP -m comment --comment "DROP_OUTPUT"
	fi
else
	/sbin/iptables -A POLICYOUT -j ACCEPT 
	/sbin/iptables -A POLICYOUT -m comment --comment "DROP_OUTPUT" -j DROP
fi
#INPUT
if [ "$FWPOLICY2" == "REJECT" ]; then
	if [ "$DROPINPUT" == "on" ]; then
		/sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "REJECT_INPUT"
	fi
	/sbin/iptables -A POLICYIN -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_INPUT"
fi
if [ "$FWPOLICY2" == "DROP" ]; then
	if [ "$DROPINPUT" == "on" ]; then
		/sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	fi
	/sbin/iptables -A POLICYIN -j DROP -m comment --comment "DROP_INPUT"
fi

exit 0