xref: /minix/etc/rc.d/named (revision bb9622b5)
1#!/bin/sh
2#
3# $NetBSD: named,v 1.25 2014/07/13 22:06:56 tls Exp $
4#
5
6# PROVIDE: named
7# REQUIRE: NETWORKING mountcritremote syslogd
8# BEFORE:  DAEMON
9# KEYWORD: chrootdir
10
11$_rc_subr_loaded . /etc/rc.subr
12
13name="named"
14rcvar=$name
15command="/usr/sbin/${name}"
16pidfile="/var/run/${name}/${name}.pid"
17start_precmd="named_precmd"
18extra_commands="reload"
19required_dirs="$named_chrootdir"	# if it is set, it must exist
20
21named_migrate()
22{
23	local src="$1"
24	local dst="$2$1"
25	echo "Migrating $src to $dst"
26(
27	diff=false
28	cd "$src"
29	mkdir -p "$dst"
30	for f in $(find . -type f)
31	do
32		f="${f##./}"
33		case "$f" in
34		*/*)
35			ds="$(dirname "$f")"
36			dd="$dst/$ds"
37			mkdir -p "$dd"
38			chmod "$(stat -f "%p" "$ds" |
39			    sed -e 's/.*\([0-7][0-7][0-7][0-7]\)$/\1/g')" "$dd"
40			chown "$(stat -f %u:%g "$ds")" "$dd"
41			;;
42		*)
43			;;
44		esac
45		if [ -r "$dst/$f" ]
46		then
47			if ! cmp "$f" "$dst/$f"; then
48				diff=true
49			fi
50		else
51			cp -p "$f" "$dst/$f"
52		fi
53	done
54	if $diff; then
55		echo "Cannot complete migration because files are different"
56		echo "Run 'diff -r $src $dst' resolve the differences"
57	else
58		rm -fr "$src"
59		ln -s "$dst" "$src"
60	fi
61)
62}
63
64named_precmd()
65{
66	if [ ! -e "/etc/rndc.key" ]; then
67		echo "Generating rndc.key"
68		/usr/sbin/rndc-confgen -a
69	fi
70
71	if [ -z "$named_chrootdir" ]; then
72		if [ ! -d "/etc/namedb/keys" ]; then
73			mkdir -m 775 "/etc/namedb/keys"
74			chown named:named "/etc/namedb/keys"
75		fi
76		return 0;
77	fi
78
79	# If running in a chroot cage, ensure that the appropriate files
80	# exist inside the cage, as well as helper symlinks into the cage
81	# from outside.
82	#
83	# As this is called after the is_running and required_dir checks
84	# are made in run_rc_command(), we can safely assume ${named_chrootdir}
85	# exists and named isn't running at this point (unless forcestart
86	# is used).
87	#
88	case "$($command -v)" in
89	BIND*)	# 9 no group, named-xfer, or ndc
90		;;
91	named*)	# 4 and 8
92		rc_flags="-g named $rc_flags"
93		if [ ! -x "${named_chrootdir}/usr/libexec/named-xfer" -o \
94		    "${named_chrootdir}/usr/libexec/named-xfer" -ot \
95		    /usr/libexec/named-xfer ]; then
96			rm -f "${named_chrootdir}/usr/libexec/named-xfer"
97			cp -p /usr/libexec/named-xfer \
98			    "${named_chrootdir}/usr/libexec"
99		fi
100		ln -fs "${named_chrootdir}/var/run/ndc" /var/run/ndc
101		;;
102	esac
103
104	for i in null random urandom; do
105		if [ ! -c "${named_chrootdir}/dev/$i" ]; then
106			rm -f "${named_chrootdir}/dev/$i"
107			(cd /dev &&
108			    /bin/pax -rw -pe "$i" "${named_chrootdir}/dev")
109		fi
110	done
111
112	if [ ! -h /etc/namedb ]; then
113		named_migrate /etc/namedb ${named_chrootdir}
114	fi
115
116	for i in named.conf rndc.key; do
117		if [ \( -r "/etc/$i" \) -a \( ! -h "/etc/$i" \) -a \
118		     \( ! -r "${named_chrootdir}/etc/$i" \) ]; then
119			mv "/etc/$i" "${named_chrootdir}/etc/$i"
120			ln -s "${named_chrootdir}/etc/$i" "/etc/$i"
121		fi
122	done
123
124	if [ \( ! -r ${named_chrootdir}/etc/named.conf \) -a \
125	    \( -r ${named_chrootdir}/etc/namedb/named.conf \) ]; then
126		ln -s namedb/named.conf ${named_chrootdir}/etc
127	fi
128
129	if [ -f /etc/localtime ]; then
130		cmp -s /etc/localtime "${named_chrootdir}/etc/localtime" || \
131		    cp -p /etc/localtime "${named_chrootdir}/etc/localtime"
132	fi
133
134	local piddir="$(dirname "${pidfile}")"
135	mkdir -p "${named_chrootdir}${piddir}" "${piddir}"
136	chmod 755 "${named_chrootdir}${piddir}" "${piddir}"
137	chown named:named "${named_chrootdir}${piddir}" "${piddir}"
138	ln -fs "${named_chrootdir}${pidfile}" "${pidfile}"
139
140	#	Change run_rc_commands()'s internal copy of $named_flags
141	#
142	rc_flags="-u named -t ${named_chrootdir} $rc_flags"
143}
144
145load_rc_config $name
146run_rc_command "$1"
147