NetBSD/etc/rc.d/named

162 lines
3.9 KiB
Bash
Executable File

#!/bin/sh
#
# $NetBSD: named,v 1.27 2021/03/31 04:57:25 christos Exp $
#
# PROVIDE: named
# REQUIRE: NETWORKING mountcritremote syslogd
# BEFORE: DAEMON
# KEYWORD: chrootdir
$_rc_subr_loaded . /etc/rc.subr
name="named"
rcvar=$name
command="/usr/sbin/${name}"
pidfile="/var/run/${name}/${name}.pid"
start_precmd="named_precmd"
extra_commands="reload"
required_dirs="$named_chrootdir" # if it is set, it must exist
named_migrate()
{
local src="$1"
local dst="$2$1"
echo "Migrating $src to $dst"
(
diff=false
cd "$src"
mkdir -p "$dst"
for f in $(find . -type f)
do
f="${f##./}"
case "$f" in
*/*)
ds="$(dirname "$f")"
dd="$dst/$ds"
mkdir -p "$dd"
chmod "$(stat -f "%p" "$ds" |
sed -e 's/.*\([0-7][0-7][0-7][0-7]\)$/\1/g')" "$dd"
chown "$(stat -f %u:%g "$ds")" "$dd"
;;
*)
;;
esac
if [ -r "$dst/$f" ]
then
if ! cmp "$f" "$dst/$f"; then
diff=true
fi
else
cp -p "$f" "$dst/$f"
fi
done
if $diff; then
echo "Cannot complete migration because files are different"
echo "Run 'diff -r $src $dst' resolve the differences"
else
rm -fr "$src"
ln -s "$dst" "$src"
fi
)
}
copy_if_newer()
{
local chrootdir="$1"
local dir="$2"
local file="$3"
if [ ! -x "${chrootdir}${dir}/${file}" -o \
"${chrootdir}${dir}/${file}" -ot "${dir}/${file}" ]; then
rm -f "${chrootdir}${dir}/${file}"
cp -p "${dir}/${file}" "${chrootdir}${dir}/${file}"
fi
}
named_precmd()
{
if [ ! -e "/etc/rndc.key" ]; then
echo "Generating rndc.key"
/usr/sbin/rndc-confgen -a
fi
if [ -z "$named_chrootdir" ]; then
if [ ! -d "/etc/namedb/keys" ]; then
mkdir -m 775 "/etc/namedb/keys"
chown named:named "/etc/namedb/keys"
fi
return 0;
fi
# If running in a chroot cage, ensure that the appropriate files
# exist inside the cage, as well as helper symlinks into the cage
# from outside.
#
# As this is called after the is_running and required_dir checks
# are made in run_rc_command(), we can safely assume ${named_chrootdir}
# exists and named isn't running at this point (unless forcestart
# is used).
#
case "$($command -v)" in
BIND*) # 9 no group, named-xfer, or ndc
named_plugindir="/usr/libexec/named"
if [ ! -d "${named_chrootdir}${named_plugindir}" ]; then
mkdir -p -m 755 "${named_chrootdir}${named_plugindir}"
chown root:wheel "${named_chrootdir}${named_plugindir}"
fi
for p in filter-aaaa.so; do
copy_if_newer "${named_chrootdir}" \
"${named_plugindir}" "$p"
done
;;
named*) # 4 and 8
rc_flags="-g named $rc_flags"
copy_if_newer "${named_chrootdir}" "/usr/libexec" "named-xfer"
ln -fs "${named_chrootdir}/var/run/ndc" /var/run/ndc
;;
esac
for i in null random urandom; do
if [ ! -c "${named_chrootdir}/dev/$i" ]; then
rm -f "${named_chrootdir}/dev/$i"
(cd /dev &&
/bin/pax -rw -pe "$i" "${named_chrootdir}/dev")
fi
done
if [ ! -h /etc/namedb ]; then
named_migrate /etc/namedb ${named_chrootdir}
fi
for i in named.conf rndc.key; do
if [ \( -r "/etc/$i" \) -a \( ! -h "/etc/$i" \) -a \
\( ! -r "${named_chrootdir}/etc/$i" \) ]; then
mv "/etc/$i" "${named_chrootdir}/etc/$i"
ln -s "${named_chrootdir}/etc/$i" "/etc/$i"
fi
done
if [ \( ! -r ${named_chrootdir}/etc/named.conf \) -a \
\( -r ${named_chrootdir}/etc/namedb/named.conf \) ]; then
ln -s namedb/named.conf ${named_chrootdir}/etc
fi
if [ -f /etc/localtime ]; then
cmp -s /etc/localtime "${named_chrootdir}/etc/localtime" || \
cp -p /etc/localtime "${named_chrootdir}/etc/localtime"
fi
local piddir="$(dirname "${pidfile}")"
mkdir -p "${named_chrootdir}${piddir}" "${piddir}"
chmod 755 "${named_chrootdir}${piddir}" "${piddir}"
chown named:named "${named_chrootdir}${piddir}" "${piddir}"
ln -fs "${named_chrootdir}${pidfile}" "${pidfile}"
# Change run_rc_commands()'s internal copy of $named_flags
#
rc_flags="-u named -t ${named_chrootdir} $rc_flags"
}
load_rc_config $name
run_rc_command "$1"