ipfilter revision 164175 
1#!/bin/sh
2#
3# $NetBSD: ipfilter,v 1.10 2001/02/28 17:03:50 lukem Exp $
4# $FreeBSD: head/etc/rc.d/ipfilter 164175 2006-11-11 10:48:34Z ceri $
5#
6
7# PROVIDE: ipfilter
8# REQUIRE: root mountcritlocal
9# BEFORE:  netif
10# KEYWORD: nojail
11
12. /etc/rc.subr
13
14name="ipfilter"
15rcvar=`set_rcvar`
16load_rc_config $name
17stop_precmd="test -f ${ipfilter_rules} -o -f ${ipv6_ipfilter_rules}"
18
19start_precmd="ipfilter_prestart"
20start_cmd="ipfilter_start"
21stop_cmd="ipfilter_stop"
22reload_precmd="$stop_precmd"
23reload_cmd="ipfilter_reload"
24resync_precmd="$stop_precmd"
25resync_cmd="ipfilter_resync"
26status_precmd="$stop_precmd"
27status_cmd="ipfilter_status"
28extra_commands="reload resync status"
29
30ipfilter_loaded()
31{
32	if ! kldstat -v | grep "ipfilter$" > /dev/null 2>&1; then
33		return 1
34	else
35		return 0
36	fi
37}
38
39ipfilter_prestart()
40{
41	# load ipfilter kernel module if needed
42	if ! ipfilter_loaded; then
43		if kldload ipl; then
44			info 'IP-filter module loaded.'
45		else
46			err 1 'IP-filter module failed to load.'
47		fi
48	fi
49
50	# check for ipfilter rules
51	if [ ! -r "${ipfilter_rules}" ] && [ ! -r "${ipv6_ipfilter_rules}" ]
52	then
53		warn 'IP-filter: NO IPF RULES'
54		return 1
55	fi
56	return 0
57}
58
59ipfilter_start()
60{
61	echo "Enabling ipfilter."
62	if [ `sysctl -n net.inet.ipf.fr_running` -le 0 ]; then
63		${ipfilter_program:-/sbin/ipf} -E
64	fi
65	${ipfilter_program:-/sbin/ipf} -Fa
66	if [ -r "${ipfilter_rules}" ]; then
67		${ipfilter_program:-/sbin/ipf} \
68		    -f "${ipfilter_rules}" ${ipfilter_flags}
69	fi
70	${ipfilter_program:-/sbin/ipf} -6 -Fa
71	if [ -r "${ipv6_ipfilter_rules}" ]; then
72		${ipfilter_program:-/sbin/ipf} -6 \
73		    -f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
74	fi
75}
76
77ipfilter_stop()
78{
79	# XXX - The ipf -D command is not effective for 'lkm's
80	if [ `sysctl -n net.inet.ipf.fr_running` -eq 1 ]; then
81		echo "Saving firewall state tables"
82		${ipfs_program:-/sbin/ipfs} -W ${ipfs_flags}
83		echo "Disabling ipfilter."
84		${ipfilter_program:-/sbin/ipf} -D
85	fi
86}
87
88ipfilter_reload()
89{
90	echo "Reloading ipfilter rules."
91
92	${ipfilter_program:-/sbin/ipf} -I -Fa
93	if [ -r "${ipfilter_rules}" ]; then
94		${ipfilter_program:-/sbin/ipf} -I \
95		    -f "${ipfilter_rules}" ${ipfilter_flags}
96		if [ $? -ne 0 ]; then
97			err 1 'Load of rules into alternate set failed; aborting reload'
98		fi
99	fi
100	${ipfilter_program:-/sbin/ipf} -I -6 -Fa
101	if [ -r "${ipv6_ipfilter_rules}" ]; then
102		${ipfilter_program:-/sbin/ipf} -I -6 \
103		    -f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
104		if [ $? -ne 0 ]; then
105			err 1 'Load of IPv6 rules into alternate set failed; aborting reload'
106		fi
107	fi
108	${ipfilter_program:-/sbin/ipf} -s
109
110}
111
112ipfilter_resync()
113{
114	# Don't resync if ipfilter is not loaded
115	if ! ipfilter_loaded; then
116		 return
117	fi
118	${ipfilter_program:-/sbin/ipf} -y ${ipfilter_flags}
119}
120
121ipfilter_status()
122{
123	${ipfilter_program:-/sbin/ipf} -V
124}
125
126run_rc_command "$1"
127