New iptables initscript

iptables (text/plain), 1.67 KB, created by Michael C. Ferguson on 2003-09-22 09:56:56 UTC

#!/sbin/runscript
# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or
# later
# $Header: /home/cvsroot/gentoo-x86/net-firewall/iptables/files/iptables.init,v 1.2 2003/05/04 18:19:03 aliz Exp $

opts="start stop save reload"

depend() {
	before net
	use logger
}

checkrules() {
	if [ ! -f ${IPTABLES_SAVE} ]
	then
		eerror "Not starting iptables. First create some rules then run"
		eerror "/etc/init.d/iptables save"
		return 1
	fi
}

start() {
	checkrules || return 1	
	ebegin "Loading iptables state and starting firewall"
	einfo "Restoring iptables ruleset"
	/sbin/iptables-restore ${SAVE_RESTORE_OPTIONS} < ${IPTABLES_SAVE}

	eend $?
}

stop() {
	save

	ebegin "Stopping firewall"

		for a in `cat /proc/net/ip_tables_names`; do
			iptables -F -t $a
			iptables -X -t $a

			if [ $a == nat ]; then
				iptables -t nat -P PREROUTING ACCEPT
				iptables -t nat -P POSTROUTING ACCEPT
				iptables -t nat -P OUTPUT ACCEPT
			elif [ $a == mangle ]; then
				iptables -t mangle -P PREROUTING ACCEPT
				iptables -t mangle -P INPUT ACCEPT
				iptables -t mangle -P FORWARD ACCEPT
				iptables -t mangle -P OUTPUT ACCEPT
				iptables -t mangle -P POSTROUTING ACCEPT
			elif [ $a == filter ]; then
				iptables -t filter -P INPUT ACCEPT
				iptables -t filter -P FORWARD ACCEPT
				iptables -t filter -P OUTPUT ACCEPT
			fi
		done
	eend $?
}

save() {
        ebegin "Saving iptables state"
        /sbin/iptables-save ${SAVE_RESTORE_OPTIONS} > ${IPTABLES_SAVE}
        eend $?
}

reload() {
	ebegin "Flushing firewall"
		for a in `cat /proc/net/ip_tables_names`; do
			/sbin/iptables -F -t $a
			/sbin/iptables -X -t $a
		done;
	eend $?

	start
}