#!/bin/sh
#
# nfslock       This shell script takes care of starting and stopping
#               the NFS file locking service.
#
# chkconfig: 345 14 86
# description: NFS is a popular protocol for file sharing across \
#	       TCP/IP networks. This service provides NFS file \
#	       locking functionality.
# probe: true

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
if [ ! -f /etc/sysconfig/network ]; then
    exit 6
fi

# Check for and source configuration file
[ -f /etc/sysconfig/nfs ] && . /etc/sysconfig/nfs

. /etc/sysconfig/network

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 6

# Start lockd from userland only if kernel <= 2.2.18
OS_RELEASE=`uname --release`
OS_RELEASE_MAJOR=`echo "$OS_RELEASE" | sed 's/\(^[0-9]\)\..*/\1/'`
OS_RELEASE_MINOR=`echo "$OS_RELEASE" | sed 's/\(^[0-9]\)\.\([0-9]*\)\..*/\2/'`
OS_RELEASE_VERSION=`echo "$OS_RELEASE" | sed 's/\(^[0-9]\)\.\([0-9]*\)\.\([0-9]*\).*/\3/'`

if [ "$OS_RELEASE_MAJOR" -le 2 -a "$OS_RELEASE_MINOR" -le 2 -a "$OS_RELEASE_VERSION" -le 18 ] ; then
    USERLAND_LOCKD="yes"
else
    USERLAND_LOCKD=
fi

if [ "$USERLAND_LOCKD" ] ; then
    [ -x /sbin/rpc.lockd ] || exit 5
fi

[ -x /sbin/rpc.statd ] || exit 5 

RETVAL=0
if [ -n "${STATD_HOSTNAME}" ]; then
    STATDARG="-n ${STATD_HOSTNAME}"
else
    STATDARG=""
fi


start() {
    if [ ! -f /var/lock/subsys/nfslock ]; then
	# Start daemons.
	if [ "$USERLAND_LOCKD" ]; then
	  echo -n $"Starting NFS locking: "
	  daemon rpc.lockd
	  echo
	else 
	# See if the kernel lockd should start up 
	# listening on a particular port
	#
		[ -n "$LOCKD_TCPPORT" ] && \
			/sbin/sysctl -w fs.nfs.nlm_tcpport=$LOCKD_TCPPORT >/dev/null 2>&1
		[ -n "$LOCKD_UDPPORT" ] && \
			/sbin/sysctl -w fs.nfs.nlm_udpport=$LOCKD_UDPPORT >/dev/null 2>&1
	fi  
	echo -n $"Starting NFS statd: "
	# See if a statd's ports has been defined
	[ -n "$STATD_PORT" ] && STATDARG="$STATDARG -p $STATD_PORT"
	[ -n "$STATD_OUTGOING_PORT" ] \
		&& STATDARG="$STATDARG -o $STATD_OUTGOING_PORT"
	# See if we have an HA-callout program specified
	[ -n "$STATD_HA_CALLOUT" ] \
		&& STATDARG="$STATDARG -H $STATD_HA_CALLOUT"
	daemon rpc.statd "$STATDARG"
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/nfslock
    fi
    return $RETVAL
}

stop() {
	# Stop daemons.
	if [ -n "`pidofproc lockd`" ]; then
		echo -n $"Stopping NFS locking: "
		killproc lockd -KILL
		echo
	fi

	echo -n $"Stopping NFS statd: "
	killproc rpc.statd
	RETVAL=$?
	echo
	rm -f /var/lock/subsys/nfslock
	return $RETVAL
}

# See how we were called.
case "$1" in
  start)
        start
	;;
  stop)
  	stop
	;;
  status)
	if [ "$USERLAND_LOCKD" ]; then
	  status lockd
	fi 
	status rpc.statd
	;;
  restart)
        stop
	start
	;;
  probe)
	if [ ! -f /var/lock/subsys/nfslock ] ; then
	  echo $"start"; exit 0
	fi
	/sbin/pidof rpc.statd >/dev/null 2>&1; STATD="$?"
	if [ "$USERLAND_LOCKD" ]; then
	   /sbin/pidof lockd >/dev/null 2>&1; LOCKD="$?"
	else
	   LOCKD=0
	fi
	if [ $STATD = 1 -o $LOCKD = 1 ] ; then
	  echo $"restart"; exit 0
	fi
	;;
  condrestart)
  	[ -f /var/lock/subsys/nfslock ] && {
		stop
		start
	}
	;;
  *)
	echo $"Usage: $0 {start|stop|status|restart|probe|condrestart}"
	RETVAL=3
	;;
esac

exit $RETVAL
