#! /bin/sh
# Copyright (c) 1995-2004 SUSE Linux AG, Nuernberg, Germany
# All rights reserved.
#
# Author: Lars Mueller <lmuelle@suse.de>
#
# /etc/init.d/named
# and its symbolic link
# /usr/sbin/rcnamed
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
### BEGIN INIT INFO
# Provides: named
# Required-Start: $network $remote_fs $syslog
# Required-Stop: $network $remote_fs $syslog
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Short-Description: Domain Name System (DNS) server, named
# Description: Berkeley Internet Name Domain (BIND) implementation of the
# Domain Name System (DNS) server named.
### END INIT INFO
. /etc/rc.status
rc_reset
PATH="/sbin:/usr/sbin:/bin:/usr/bin"
SYSCONFIG_FILE="/etc/sysconfig/named"
NAMED_CONF="/etc/named.conf"
if [ "$1" != "stop" ]; then
for configfile in ${SYSCONFIG_FILE} ${NAMED_CONF}; do
if [ ! -f ${configfile} ]; then
echo -n "Name server configuration file ${configfile} does not exist. "
# Tell the user this has skipped
rc_status -s
exit 6
fi
done
. /etc/sysconfig/named
# Ensure to work always with absolut filenames.
temp_file_list=""
for configfile in ${NAMED_CONF_INCLUDE_FILES}; do
# prepend the default include directory if the filename is
# relative
test "${configfile:0:1}" = "/" || configfile="/etc/named.d/${configfile}"
temp_file_list="${temp_file_list} ${configfile}"
done
NAMED_CONF_INCLUDE_FILES=${temp_file_list}
# Add include files from named.conf.
NAMED_CONF_INCLUDE_LINES=$( grep -e '^[[:space:]]*include' "${NAMED_CONF}" | cut -f 2 -d '"')
for file in ${NAMED_CONF_INCLUDE_LINES}; do
test "${file}" = "${NAMED_CONF_META_INCLUDE_FILE}" && continue
case "${NAMED_CONF_INCLUDE_FILES}" in
*${file}*) ;;
*) NAMED_CONF_INCLUDE_FILES="${NAMED_CONF_INCLUDE_FILES} ${file}" ;;
esac
done
fi
function warnMessage()
{
tput bold
echo -en "\nWarning: "
tput sgr0
echo -e "$1 "
}
if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
CHROOT_PREFIX="/var/lib/named"
NAMED_ARGS="${NAMED_ARGS} -t ${CHROOT_PREFIX}"
NAMED_CHECKCONF_ARGS="-t ${CHROOT_PREFIX}"
else
CHROOT_PREFIX=""
fi
NAMED_BIN="/usr/sbin/named"
NAMED_CHECKCONF_BIN="/usr/sbin/named-checkconf"
NAMED_CONF_META_INCLUDE_FILE_SCRIPT="/usr/share/bind/createNamedConfInclude"
NAMED_PID="${CHROOT_PREFIX}/var/run/named/named.pid"
RNDC_BIN="/usr/sbin/rndc"
if [ ! -x ${NAMED_BIN} ] ; then
echo -n "Name server, ${NAMED_BIN} not installed! "
# Tell the user this has skipped
rc_status -s
exit 5
fi
# Check for NAMED_CONF_META_INCLUDE_FILE or set it to our default if we use
# the NAMED_CONF_META_INCLUDE_FILE_SCRIPT script.
if [ -z "${NAMED_CONF_META_INCLUDE_FILE}" ]; then
BASENAME_NAMED_CONF_META_INCLUDE_FILE_SCRIPT=$( basename ${NAMED_CONF_META_INCLUDE_FILE_SCRIPT})
for script in ${NAMED_INITIALIZE_SCRIPTS}; do
if [ "${script}" = "${BASENAME_NAMED_CONF_META_INCLUDE_FILE_SCRIPT}" -o \
"${script}" = "${NAMED_CONF_META_INCLUDE_FILE_SCRIPT}" ]; then
NAMED_CONF_META_INCLUDE_FILE="/etc/named.conf.include"
break
fi
done
fi
function initializeNamed
{
rc=0
test "${initializeNamedCalled}" = "yes" && return
for script in ${NAMED_INITIALIZE_SCRIPTS}; do
test "${script:0:1}" = "/" || script="/usr/share/bind/${script}"
${script}
test $? -ne 0 && rc=$?
done
# We want to start each script one time only
export initializeNamedCalled="yes"
return ${rc}
}
# Create destination directory in the chroot.
function makeDestDir
{
if [ ! -d "${CHROOT_PREFIX}/${configfile%/*}" ]; then
umask 0022
mkdir -p "${CHROOT_PREFIX}/${configfile%/*}"
fi
}
# Check if all needed configuration files exist and copy these files relativly
# to the chroot directory if 'named' runs chrooted.
function checkAndCopyConfigFiles
{
test "${checkAndCopyConfigFilesCalled}" = "yes" && return
# check for /etc/rndc.key
if [ ! -f /etc/rndc.key ]; then
warnMessage "File /etc/rndc.key not found. Creating it."
/usr/sbin/rndc-confgen -a -b 512 -r /dev/urandom
chmod 0640 /etc/rndc.key
chown root:named /etc/rndc.key
fi
# Handle all include files.
for configfile in "${NAMED_CONF_META_INCLUDE_FILE}" ${NAMED_CONF_INCLUDE_FILES}; do
if [ ! -f "${configfile}" ]; then
case "${configfile}" in
"${NAMED_CONF_META_INCLUDE_FILE}")
warnMessage "File, ${configfile} not found. Creating it."
initializeNamed
;;
*)
test -z "${NAMED_CONF_META_INCLUDE_FILE}" && continue
grep -qe "^[[:space:]]*include[[:space:]]*\"${configfile}\"" "${NAMED_CONF_META_INCLUDE_FILE}" && \
initializeNamed || \
warnMessage "File, ${configfile} not found. Skipping.\nPlease check the setting of NAMED_CONF_INCLUDE_FILES in /etc/sysconfig/named."
continue
;;
esac
fi
if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
makeDestDir
cp -a ${configfile} ${CHROOT_PREFIX}/${configfile%/*}
fi
done
# Handle known configuration files.
if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
for configfile in ${NAMED_CONF} /etc/{localtime,rndc.key}; do
if [ ! -e ${configfile} ]; then
warnMessage "File ${configfile} not found. Skipping."
continue
fi
makeDestDir
cp -a ${configfile} ${CHROOT_PREFIX}/${configfile%/*}
done
fi
export checkAndCopyConfigFilesCalled="yes"
}
# Check the syntax of our 'named' configuration.
function namedCheckConf
{
test "${namedConfChecked}" = "yes" && return
if ! ${NAMED_CHECKCONF_BIN} ${NAMED_CHECKCONF_ARGS} >/dev/null; then
checkAndCopyConfigFiles
if ! ${NAMED_CHECKCONF_BIN} ${NAMED_CHECKCONF_ARGS}; then
rc_status -s
rc_failed 6
rc_exit
fi
fi
export namedConfChecked="yes"
}
case "$1" in
start)
echo -n "Starting name server BIND "
checkproc -p ${NAMED_PID} ${NAMED_BIN}
case $? in
0) echo -n "- Warning: named already running! " ;;
1) echo -n "- Warning: ${NAMED_PID} exists! " ;;
esac
checkAndCopyConfigFiles
namedCheckConf
initializeNamed
startproc -p ${NAMED_PID} ${NAMED_BIN} ${NAMED_ARGS} -u named
rc_status -v
;;
stop)
echo -n "Shutting down name server BIND "
checkproc -p ${NAMED_PID} ${NAMED_BIN} || echo -n "- Warning: named not running! "
if ${RNDC_BIN} status &>/dev/null; then
${RNDC_BIN} stop
else
killproc -p ${NAMED_PID} -TERM ${NAMED_BIN}
fi
rc=$?
# let's wait, because
# 1) trying to start named before it has terminated can leave
# us without a running named...
# 2) making sure that pending updates are written to zone files is good
# before trying to modify them externally
first=0; timeout=30; startDate=$( date +%s)
while checkproc -p ${NAMED_PID} ${NAMED_BIN}; do
rc=$?
if [ ${first} -eq 0 ]; then
echo -n >&2 " waiting for named to shut down "
rc_timer_on ${timeout} 63
first=1
fi
if [ $(( $( date +%s) - ${startDate} )) -gt $timeout ]; then
echo -en >&2 "\nNamed still appears to be running after $timeout seconds, sending SIGTERM"
killproc -p ${NAMED_PID} -TERM ${NAMED_BIN}
rc=$?
break
fi
sleep 2
done
test ${first} -ne 0 && rc_timer_off
rc_failed ${rc}
rc_status -v
;;
try-restart)
namedCheckConf
$0 status >/dev/null && $0 restart
rc_status
;;
restart)
namedCheckConf
# Some of the scripts need a running named.
$0 status >/dev/null && initializeNamed
$0 stop
$0 start
rc_status
;;
force-reload|reload)
echo -n "Reloading name server BIND "
checkproc -p ${NAMED_PID} ${NAMED_BIN} || echo "- Warning: named not running! "
rc=$?
if [ ${rc} -ne 0 ]; then
echo "- Warning: named not running! "
else
checkAndCopyConfigFiles
namedCheckConf
initializeNamed
${RNDC_BIN} status &>/dev/null
if [ $? -ne 0 ]; then
killproc -p ${NAMED_PID} -HUP ${NAMED_BIN}
else
${RNDC_BIN} reload
fi
rc=$?
fi
( exit ${rc} )
rc_status -v
;;
status)
echo -n "Checking for nameserver BIND "
checkproc -p ${NAMED_PID} ${NAMED_BIN}
if [ $? -ne 0 ]; then
false
else
test "${RNDC_BIN}" && echo && ${RNDC_BIN} status && echo -en "${esc}[1A"
true
fi
rc_status -v
;;
probe)
rc=0
for configfile in ${NAMED_CONF} /etc/{localtime,rndc.key} "${NAMED_CONF_META_INCLUDE_FILE}" ${NAMED_CONF_INCLUDE_FILES}; do
if [ "${configfile}" -nt ${NAMED_PID} ]; then
rc=1
break
fi
done
test ${rc} -ne 0 && echo reload
;;
*)
echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
exit 1
;;
esac
rc_exit
