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#!/bin/bash
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Tom Grennan <tgrennan@vyatta.com>
# Description: firewall init
# this is an indirect init sub-script executed by ofr.init
#
# **** End License ****
prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
sbindir=@sbindir@
export PATH=/usr/bin:/usr/sbin:/bin:/sbin:$bindir:$sbindir
. /lib/lsb/init-functions
ACTION=$1
declare -a modules=(
nf_conntrack
nf_conntrack_ftp
nf_conntrack_tftp
nf_nat
nf_nat_ftp
nf_nat_tftp
nf_nat_proto_gre
nf_nat_sip
nf_nat_h323
nf_nat_pptp)
## setup firewall & nat conntrack modules
start () {
for mod in ${modules[@]} ; do
modprobe --syslog $mod
done
# set up notrack chains/rules
# by default, nothing is tracked.
iptables -t raw -A PREROUTING -j NOTRACK
iptables -t raw -A OUTPUT -j NOTRACK
# set up post-firewall hook
iptables -N VYATTA_POST_FW_HOOK
iptables -A VYATTA_POST_FW_HOOK -j ACCEPT
iptables -A INPUT -j VYATTA_POST_FW_HOOK
iptables -A FORWARD -j VYATTA_POST_FW_HOOK
}
case "$ACTION" in
start) start ;;
stop|restart|force-reload) true ;; # nothing to stop/restart
*) log_failure_msg "action unknown: $ACTION" ;
false ;;
esac
exit $?
# Local Variables:
# mode: shell-script
# sh-indentation: 4
# End:
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