core/iptables/iptables
Jan Mette a20ff5c68a
2010-03-13 15:25:19 +00:00

96 lines
2.1 KiB
Bash
Executable File

#!/bin/bash
# source application-specific settings
[ -f /etc/conf.d/iptables ] && . /etc/conf.d/iptables
# Set defaults if settings are missing
[ -z "$IPTABLES" ] && IPTABLES=/usr/sbin/iptables
[ -z "$IPTABLES_CONF" ] && IPTABLES_CONF=/etc/iptables/iptables.rules
. /etc/rc.conf
. /etc/rc.d/functions
case "$1" in
start)
if [ ! -f $IPTABLES_CONF ]; then
echo "Cannot load iptables rules: $IPTABLES_CONF is missing!" >&2
exit 1
fi
stat_busy "Starting IP Tables"
if [ "$IPTABLES_FORWARD" = "1" ]; then
echo 1 >/proc/sys/net/ipv4/ip_forward
fi
if ck_daemon iptables; then
/usr/sbin/iptables-restore < $IPTABLES_CONF
if [ $? -gt 0 ]; then
stat_fail
else
add_daemon iptables
stat_done
fi
else
stat_fail
fi
;;
stop)
stat_busy "Stopping IP Tables"
echo 0 >/proc/sys/net/ipv4/ip_forward
if ! ck_daemon iptables; then
fail=0
for table in $(cat /proc/net/ip_tables_names); do
$IPTABLES -t $table -F &>/dev/null && \
$IPTABLES -t $table -X &>/dev/null && \
$IPTABLES -t $table -Z &>/dev/null
[ $? -gt 0 ] && fail=1
done
if [ $fail -gt 0 ]; then
stat_fail
else
rm_daemon iptables
# reset policies
for table in filter nat mangle raw; do
if grep -qw $table /proc/net/ip_tables_names; then
$IPTABLES -t $table -P OUTPUT ACCEPT
fi
done
for table in filter mangle; do
if grep -qw $table /proc/net/ip_tables_names; then
$IPTABLES -t $table -P INPUT ACCEPT
$IPTABLES -t $table -P FORWARD ACCEPT
fi
done
for table in nat mangle raw; do
if grep -qw $table /proc/net/ip_tables_names; then
$IPTABLES -t $table -P PREROUTING ACCEPT
fi
done
for table in nat mangle; do
if grep -qw $table /proc/net/ip_tables_names; then
$IPTABLES -t $table -P POSTROUTING ACCEPT
fi
done
stat_done
fi
else
stat_fail
fi
;;
restart)
$0 stop
sleep 2
$0 start
;;
save)
stat_busy "Saving IP Tables"
/usr/sbin/iptables-save >$IPTABLES_CONF
if [ $? -gt 0 ]; then
stat_fail
else
stat_done
fi
;;
*)
echo "usage: $0 {start|stop|restart|save}"
esac
exit 0