#!/bin/sh
#
# nfs		This shell script takes care of starting and stopping
#		the NFS services.
#
# chkconfig:	345 13 81
# description:	NFS is a popular protocol for file sharing across TCP/IP \
#		networks. This service provides NFS server functionality, \
#		which is configured via the /etc/exports file.
# probe:	true

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

# Get network config
. /etc/sysconfig/network

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

# 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 daemon"
		exit 1
	fi
else
	exit 0
fi

if [ "$1" != "stop" ]; then
	check_portmapper || { nls "Error: portmap isn't running" && exit 0; }
fi

start() {
	# Check if the service is already running?
	if [ -f /var/lock/subsys/nfs ]; then
		msg_already_running "NFS daemon"
		return
	fi

	if ! grep -q nfsd /proc/mounts ; then
		modprobe -s nfsd > /dev/null 2>&1
		run_cmd "Mounting /proc/fs/nfsd filesystem" mount -t nfsd nfsd /proc/fs/nfsd
	fi

	# 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

	# Start daemons.
	msg_starting "NFS exportfs"
	daemon /usr/sbin/exportfs -r
	msg_starting "NFS mountd"
	daemon /usr/sbin/rpc.mountd $RPCMOUNTDOPTIONS
	msg_starting "NFS daemon"
	daemon /usr/sbin/rpc.nfsd $RPCNFSDCOUNT
	touch /var/lock/subsys/nfs
}

stop() {
	if [ ! -f /var/lock/subsys/nfs ]; then
		msg_not_running "NFS"
		return
	fi

	# Stop daemons.
	msg_stopping "NFS daemon"
	killproc nfsd -QUIT
	msg_stopping "NFS mountd"
	killproc rpc.mountd
	msg_stopping "NFS exportfs"
	daemon /usr/sbin/exportfs -au
	rm -f /var/lock/subsys/nfs
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
  	start
	;;
  stop)
  	stop
	;;
  restart)
	stop
	start
	/sbin/service idmapd status >/dev/null && /sbin/service idmapd reload
	/sbin/service svcgssd status >/dev/null && /sbin/service svcgssd restart
	;;
  reload|force-reload)
	if [ -f /var/lock/subsys/nfs ]; then
		msg_reloading "NFS"
		busy
		/usr/sbin/exportfs -r
		[ $? -ne 0 ] && RETVAL=7
		if [ $RETVAL -eq 0 ]; then
			ok
			/sbin/service idmapd status >/dev/null && /sbin/service idmapd reload
			/sbin/service svcgssd status >/dev/null && /sbin/service svcgssd restart
		else
			died
		fi
	else
		msg_not_running "NFS"
		exit 7
	fi
	;;
  probe)
	if [ ! -f /var/lock/subsys/nfs ]; then
		echo start
		exit 0
	fi
	/sbin/pidof rpc.mountd >/dev/null 2>&1; MOUNTD="$?"
	/sbin/pidof nfsd >/dev/null 2>&1; NFSD="$?"
	if [ $MOUNTD = 1 -o $NFSD = 1 ]; then
		echo restart
		exit 0
	fi
	if [ /etc/exports -nt /var/lock/subsys/nfs ]; then
		echo reload
		exit 0
	fi
	;;
  status)
	echo "Configured NFS exports:"
	grep -v "^#" /etc/exports
	echo
	echo "Active NFS exports:"
	/usr/sbin/exportfs -v
	echo
	status rpc.mountd
	RETVAL=$?
	status nfsd
	RET=$?
	[ $RETVAL -eq 0 ] && RETVAL=$RET
	;;
  *)
	msg_usage "$0 {start|stop|restart|reload|force-reload|probe|status}"
	exit 3
esac

exit $RETVAL