faith revision 197701 
1#!/bin/sh
2# $FreeBSD: head/etc/rc.d/faith 197701 2009-10-02 06:19:34Z hrs $
3#
4
5# PROVIDE: faith
6# REQUIRE: netif routing
7# KEYWORD: nojail
8
9. /etc/rc.subr
10. /etc/network.subr
11
12name="faith"
13start_cmd="faith_up"
14stop_cmd="faith_down"
15
16faith_up()
17{
18	case ${ipv6_faith_prefix} in
19	[Nn][Oo] | '')
20		;;
21	*)
22		echo "Configuring IPv6-to-IPv4 TCP relay capturing interface:" \
23		    " faith0."
24		${SYSCTL_W} net.inet6.ip6.keepfaith=1
25		ifconfig faith0 create >/dev/null 2>&1
26		ifconfig faith0 up
27		for prefix in ${ipv6_faith_prefix}; do
28			prefixlen=`expr "${prefix}" : ".*/\(.*\)"`
29			case ${prefixlen} in
30			'')
31				prefixlen=96
32				;;
33			*)
34				prefix=`expr "${prefix}" : \
35					     "\(.*\)/${prefixlen}"`
36				;;
37			esac
38			route add -inet6 ${prefix} -prefixlen ${prefixlen} ::1
39			route change -inet6 ${prefix} -prefixlen ${prefixlen} \
40				-ifp faith0
41		done
42		if [ -z "${rc_quiet}" ]; then
43			ifconfig faith0
44		fi
45		;;
46	esac
47}
48
49faith_down()
50{
51	echo "Removing IPv6-to-IPv4 TCP relay capturing interface: faith0."
52	ifconfig faith0 destroy
53	${SYSCTL_W} net.inet6.ip6.keepfaith=0
54
55	case ${ipv6_faith_prefix} in
56	[Nn][Oo] | '')
57		;;
58	*)
59		for prefix in ${ipv6_faith_prefix}; do
60			prefixlen=`expr "${prefix}" : ".*/\(.*\)"`
61			case ${prefixlen} in
62			'')
63				prefixlen=96
64				;;
65			*)
66				prefix=`expr "${prefix}" : \
67					     "\(.*\)/${prefixlen}"`
68				;;
69			esac
70			route delete -inet6 ${prefix} -prefixlen ${prefixlen}
71		done
72		;;
73	esac
74}
75
76load_rc_config $name
77run_rc_command "$1"
78