258 lines
6.5 KiB
Bash
Executable File
258 lines
6.5 KiB
Bash
Executable File
#!/bin/bash
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#
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# named This shell script takes care of starting and stopping
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# named (BIND DNS server).
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#
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# chkconfig: - 13 87
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# description: named (BIND) is a Domain Name Server (DNS) \
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# that is used to resolve host names to IP addresses.
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# probe: true
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# Return codes
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# - script (all except status command)
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# - 2 invalid or excess argument(s)
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# - 3 unimplemented feature (for example, "reload")
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# - 4 user had insufficient privilege
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# - 5 program is not installed
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# - 6 program is not configured
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# - 7 program is not running
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# Source function library.
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. /etc/rc.d/init.d/functions
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[ -r /etc/sysconfig/named ] && . /etc/sysconfig/named
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RETVAL=0
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# Don't kill named during clean-up
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NAMED_SHUTDOWN_TIMEOUT=${NAMED_SHUTDOWN_TIMEOUT:-100}
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if [ -n "$ROOTDIR" ]; then
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ROOTDIR=`echo $ROOTDIR | sed 's#//*#/#g;s#/$##'`;
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rdl=`/usr/bin/readlink $ROOTDIR`;
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if [ -n "$rdl" ]; then
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ROOTDIR="$rdl";
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fi;
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fi
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# Run SDB backend?
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named='named'
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if `echo "$ENABLE_SDB" | grep -q ^[yY1].*`; then
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named='named_sdb';
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fi;
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# Manage forwarders through D-BUS?
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for a in $OPTIONS; do
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if [ $a = "-D" ]; then
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dbusEnabled=1;
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fi;
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done
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if [ -z $dbusEnabled ] && [ -z "$DISABLE_NAMED_DBUS" ] ; then
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for l in 0 1 2 3 4 5 6; do
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if /sbin/chkconfig --level=$l NetworkManager >/dev/null 2>&1; then
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dbusEnabled=1;
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fi;
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done
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[ -z $dbusEnabled ] || OPTIONS="$OPTIONS -D";
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fi;
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# Check if all what named needs running
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start()
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{
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# Source networking configuration.
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[ -r /etc/sysconfig/network ] && . /etc/sysconfig/network
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# Check that networking is up
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[ "${NETWORKING}" = "no" ] && exit 1
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[ -x /usr/sbin/$named ] || exit 5
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# Handle -c option
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previous_option='unspecified';
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for a in $OPTIONS; do
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if [ $previous_option = '-c' ]; then
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named_conf=$a;
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fi;
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previous_option=$a;
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done;
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named_conf=${named_conf:-/etc/named.conf};
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if [ ! -r $named_conf ]; then
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echo 'Cannot find configuration file. You could create it by system-config-bind'
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exit 6;
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fi;
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# all pre-start is done, lets start named
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echo -n $"Starting $named: "
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if [ -n "`/sbin/pidof -o %PPID $named`" ]; then
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echo -n $"$named: already running"
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failure
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echo
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exit 1;
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fi;
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ckcf_options='-z'; # enable named-checkzone for each zone (9.3.1+) !
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if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
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OPTIONS="${OPTIONS} -t ${ROOTDIR}"
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ckcf_options="$ckcf_options -t ${ROOTDIR}";
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[ -s /etc/localtime ] && cp -fp /etc/localtime ${ROOTDIR}/etc/localtime;
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[ -d ${ROOTDIR}/proc ] || mkdir -p ${ROOTDIR}/proc;
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if ! egrep -q '^/proc[[:space:]]+'${ROOTDIR}'/proc' /proc/mounts; then
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mount --bind -n /proc ${ROOTDIR}/proc >/dev/null 2>&1;
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fi
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if [ ! -z $dbusEnabled ]; then
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if ! egrep -q '^/[^[:space:]]+[[:space:]]+'${ROOTDIR}'/var/run/dbus' /proc/mounts; then
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mkdir -p ${ROOTDIR}/var/run/dbus
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[ -d /var/run/dbus ] || mkdir -p /var/run/dbus;
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mount --bind -n /var/run/dbus ${ROOTDIR}/var/run/dbus > /dev/null 2>&1;
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fi;
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fi;
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fi
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RETVAL=0
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# check if configuration is correct
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if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} >/dev/null 2>&1; then
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daemon /usr/sbin/$named -u named ${OPTIONS};
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RETVAL=$?
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if [ $RETVAL -eq 0 ]; then
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rm -f /var/run/named.pid;
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rm -f /var/run/named_sdb.pid;
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ln -s $ROOTDIR/var/run/named/named.pid /var/run/named.pid;
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[ "$named" = "named_sdb" ] && ln -s $ROOTDIR/var/run/named/named.pid /var/run/named_sdb.pid;
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fi;
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if [ -n "`/sbin/pidof -o %PPID $named`" ]; then
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# Verify that named actually started (JM 2006-10-04)
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if [ ! -e $ROOTDIR/var/run/named/named.pid ]; then
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# If there is not a file containing the PID of the now running named daemon then create it (JM 2006-10-04)
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echo `/sbin/pidof -o %PPID $named` > $ROOTDIR/var/run/named/named.pid;
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[ "$named" = "named_sdb" ] && echo `/sbin/pidof -o %PPID $named` > $ROOTDIR/var/run/named/named_sdb.pid;
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fi;
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fi;
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else
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named_err="`/usr/sbin/named-checkconf $ckcf_options $named_conf 2>&1`";
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echo
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echo "Error in named configuration:";
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echo "$named_err";
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failure
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echo
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[ -x /usr/bin/logger ] && echo "$named_err" | /usr/bin/logger -pdaemon.error -tnamed;
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exit 2;
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fi;
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if [ $RETVAL -eq 0 ]; then
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touch /var/lock/subsys/named;
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else
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exit 7;
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fi
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echo
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return 0;
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}
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stop() {
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# Stop daemons.
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echo -n $"Stopping $named: "
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[ -x /usr/sbin/rndc ] && /usr/sbin/rndc stop >/dev/null 2>&1;
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RETVAL=$?
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# is it still here?
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if /sbin/pidof -o %PPID $named >/dev/null; then
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timeout=0
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while : ; do
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if /sbin/pidof -o %PPID $named >/dev/null; then
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if [ $timeout -ge $NAMED_SHUTDOWN_TIMEOUT ]; then
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killproc $named -TERM >/dev/null 2>&1
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RETVAL=$?
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echo $"no response, killing with -TERM "
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break
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else
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sleep 2 && echo -n "."
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timeout=$((timeout+2))
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fi;
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else
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break
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fi;
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done
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fi;
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# remove pid files
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if [ $RETVAL -eq 0 ]; then
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rm -f /var/lock/subsys/named
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rm -f /var/run/named.pid
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rm -f /var/run/named_sdb.pid
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fi;
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# unmount mounted filesystems/directories
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if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
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if egrep -q '^/proc[[:space:]]+'${ROOTDIR}'/proc' /proc/mounts; then
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umount ${ROOTDIR}/proc >/dev/null 2>&1
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fi
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if [ ! -z $dbusEnabled ]; then
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if egrep -q '^/[^[:space:]]+[[:space:]]+'${ROOTDIR}'/var/run/dbus' /proc/mounts; then
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umount ${ROOTDIR}/var/run/dbus > /dev/null 2>&1
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fi;
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fi;
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fi;
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if [ $RETVAL -eq 0 ]; then
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success
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else
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failure
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RETVAL=1
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fi;
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echo
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return $RETVAL
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}
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rhstatus() {
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[ -x /usr/sbin/rndc ] && /usr/sbin/rndc status;
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status /usr/bin/$named;
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return $?
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}
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restart() {
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stop
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start
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}
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reload() {
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echo -n $"Reloading $named: "
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p=`/sbin/pidof -o %PPID $named`
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RETVAL=$?
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if [ "$RETVAL" -eq 0 ]; then
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/usr/sbin/rndc reload >/dev/null 2>&1 || /bin/kill -HUP $p;
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RETVAL=$?
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fi
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[ "$RETVAL" -eq 0 ] && success $"$named reload" || failure $"$named reload"
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echo
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return $RETVAL
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}
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# See how we were called.
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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status)
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rhstatus;
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RETVAL=$?
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;;
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restart)
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restart
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;;
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condrestart)
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if [ -e /var/lock/subsys/named ]; then restart; fi
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;;
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reload)
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reload
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;;
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*)
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echo $"Usage: $0 {start|stop|status|restart|condrestart|reload}"
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exit 3
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esac
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exit $RETVAL
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