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#!/bin/sh
# This file is part of netfilter-persistent
# (was iptables-persistent)
# Copyright (C) 2009, Simon Richter <sjr@debian.org>
# Copyright (C) 2010, 2014 Jonathan Wiltshire <jmw@debian.org>
#
# 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.
set -e
rc=0
load_rules()
{
#load IPv6 rules
if [ ! -f /etc/iptables/rules.v6 ]; then
echo "Warning: skipping IPv6 (no rules to load)"
else
ip6tables-restore < /etc/iptables/rules.v6 2> /dev/null
if [ $? -ne 0 ]; then
rc=1
fi
fi
}
save_rules()
{
#save IPv6 rules
#need at least ip6table_filter loaded:
/sbin/modprobe -q ip6table_filter
if [ ! -f /proc/net/ip6_tables_names ]; then
log_action_cont_msg "Warning: skipping IPv6 (no modules loaded)"
elif [ -x /sbin/ip6tables-save ]; then
touch /etc/iptables/rules.v6
chmod 0640 /etc/iptables/rules.v6
ip6tables-save > /etc/iptables/rules.v6
if [ $? -ne 0 ]; then
rc=1
fi
fi
}
flush_rules()
{
if [ ! -f /proc/net/ip6_tables_names ]; then
echo "Warning: skipping IPv6 (no module loaded)"
elif [ -x /sbin/ip6tables ]; then
for param in F Z X; do /sbin/ip6tables -$param; done
for table in $(cat /proc/net/ip6_tables_names)
do
/sbin/ip6tables -t $table -F
/sbin/ip6tables -t $table -Z
/sbin/ip6tables -t $table -X
done
for chain in INPUT FORWARD OUTPUT
do
/sbin/ip6tables -P $chain ACCEPT
done
fi
}
case "$1" in
start|restart|reload|force-reload)
load_rules
;;
save)
save_rules
;;
stop)
# Why? because if stop is used, the firewall gets flushed for a variable
# amount of time during package upgrades, leaving the machine vulnerable
# It's also not always desirable to flush during purge
echo "Automatic flushing disabled, use \"flush\" instead of \"stop\""
;;
flush)
flush_rules
;;
*)
echo "Usage: $0 {start|restart|reload|force-reload|save|flush}" >&2
exit 1
;;
esac
exit $rc
|
