#!/bin/sh
#
# nfslock	This shell script takes care of starting and stopping
#		the NFS file locking service.
#
# chkconfig:	345 14 81
# 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

# Get network config
. /etc/sysconfig/network

# Get service config
[ -f /etc/sysconfig/nfslock ] && . /etc/sysconfig/nfslock

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down "NFS lockd"
		exit 1
	fi
else
	exit 0
fi

if [ -x /sbin/pidof ] && [ "$1" != "stop" ]; then
	[ -z "`/sbin/pidof portmap`" ] && nls "Error: portmap isn't running" && exit 0
fi

# /usr may be on NFS, fail silently, nfsfs will start it
[ -x /usr/sbin/rpc.statd ] || exit 0

start() {
	# Check if the service is already running?
	if [ ! -f /var/lock/subsys/nfslock ]; then
		# Set the ports lockd should listen on
		if [ -n "$LOCKD_TCPPORT" ]; then
			/sbin/sysctl -w fs.nfs.nlm_tcpport=$LOCKD_TCPPORT >/dev/null 2>&1
		fi
		if [ -n "$LOCKD_UDPPORT" ]; then
			/sbin/sysctl -w fs.nfs.nlm_udpport=$LOCKD_UDPPORT >/dev/null 2>&1
		fi

		[ -n "$STATD_PORT" ] && STATDOPTS="$STATDOPTS -p $STATD_PORT"
		[ -n "$STATD_OUTPORT" ] && STATDOPTS="$STATDOPTS -o $STATD_OUTPORT"

		# Start daemons.
		if is_yes "$NFSv2" || is_yes "$NFSv3" ; then
			msg_starting "NFS statd"
			daemon rpc.statd $STATDOPTS
			RETVAL=$?
			[ $RETVAL -eq 0 ] && touch /var/lock/subsys/nfslock
		else
			touch /var/lock/subsys/nfslock
		fi
	else
		msg_already_running "NFS statd"
	fi
}

stop() {
	if [ -f /var/lock/subsys/nfslock ]; then
		# Reset the lockd ports if they were set
		if [ -n "$LOCKD_TCPPORT" ]; then
			/sbin/sysctl -w fs.nfs.nlm_tcpport=0 >/dev/null 2>&1
		fi
		if [ -n "$LOCKD_UDPPORT" ]; then
			/sbin/sysctl -w fs.nfs.nlm_udpport=0 >/dev/null 2>&1
		fi
		# Stop daemons.
		if is_yes "$NFSv2" || is_yes "$NFSv3" ; then
			msg_stopping "NFS statd"
			killproc rpc.statd
		fi
		rm -f /var/lock/subsys/nfslock
	else
		msg_not_running "NFS statd"
	fi
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
  	start
	;;
  stop)
  	stop
	;;
  status)
	if is_yes "$NFSv2" || is_yes "$NFSv3" ; then
		status rpc.statd
		exit $?
	else
		echo "NFSv2 and NFSv3 disabled"
		exit 0
	fi
	;;
  restart|force-reload)
	stop
	start
	;;
  probe)
	if [ ! -f /var/lock/subsys/nfslock ]; then
		echo start
		exit 0
	fi
	if is_yes "$NFSv2" || is_yes "$NFSv3" ; then
		/sbin/pidof rpc.statd >/dev/null 2>&1; STATD="$?"
		if [ $STATD = 1 ]; then
			echo restart
			exit 0
		fi
	else
		exit 0
	fi
	;;
  *)
	msg_usage "$0 {start|stop|restart|force-reload|probe|status}"
	exit 3
esac

exit $RETVAL