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#!/bin/sh
# This file is part of netfilter-persistent
# (was iptables-persistent)
# Copyright (C) 2018, gustavo panizzo <gfa@zumbi.com.ar>
#
# 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 script saves and/or restores ipset(s) to/from a file
# Flush is implemented in another script, as it has to run after
# iptables flush
set -e
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
# Source configuration
if [ -f "/etc/default/netfilter-persistent" ]; then
. /etc/default/netfilter-persistent
fi
# Create the ipsets and populate them
load_sets ()
{
#load ipset rules
if [ ! -f /etc/iptables/ipsets ]; then
echo "Warning: skipping IPSet (no rules to load)"
else
ipset restore -exist < /etc/iptables/ipsets
fi
}
# Save current contents of the ipsets to file
save_sets ()
{
if [ ! "${IPSET_SKIP_SAVE}x" = "yesx" ]; then
touch /etc/iptables/ipsets
chmod 0640 /etc/iptables/ipsets
ipset save > /etc/iptables/ipsets
fi
}
# flush sets
flush_sets ()
{
:
}
case "$1" in
start|restart|reload|force-reload)
load_sets
;;
save)
save_sets
;;
stop)
# While it makes sense to stop (delete) ipsets we keep the same
# semanthics as ip(6)?tables rules
echo "Automatic flushing disabled, use \"flush\" instead of \"stop\""
;;
flush)
flush_sets
;;
*)
echo "Usage: $0 {start|restart|reload|force-reload|save|flush}" >&2
exit 1
;;
esac
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