#!/bin/sh
#

NFSSERVER_ON=1
MOUNTD_PORT_ON=1
MOUNTD_PORT=2049
DESC="NFS kernel daemon"
RPCNFSDCOUNT=16
PIDFILE=/var/run/nsfd.pid

if [ -d /usr/sbin ] ; then
	PORTMAP_BIN=/usr/sbin/portmap
	NFSD_BIN=/usr/sbin/nfsd
	MOUNTD_BIN=/usr/sbin/mountd
	EXPORTFS_BIN=/usr/sbin/exportfs

else
	PORTMAP_BIN=/sbin/portmap
	NFSD_BIN=/sbin/nfsd
	MOUNTD_BIN=/sbin/mountd
	EXPORTFS_BIN=/sbin/exportfs
fi


[ -x $NFSD_BIN ] || exit 0
[ -x $MOUNTD_BIN ] || exit 0
[ -x $EXPORTFS_BIN ] || exit 0
[ -x $PORTMAP_BIN ] || exit 0

set -e

if [ $NFSSERVER_ON -ne 0 ]; then
	if [ ! -d /var/lib ] ; then mkdir /var/lib; fi
	rm -R /var/lib/nfs 2> /dev/null || /bin/true
	ln -sf /tmp /var/lib/nfs
	touch /var/lib/nfs/rmtab
fi

# See how we were called.
case "$1" in
	start)
		if [ $NFSSERVER_ON -ne 0 ]; then
			##############_Module_############
			modprobe exportfs
			modprobe nfsd
			#############_PORTMAP_############
			echo -n "Starting portmap daemon:"
			echo -n " portmap"
			start-stop-daemon --start --quiet --exec $PORTMAP_BIN
			echo "."

			if [ -f /var/run/portmap.upgrade-state ]; then
				echo -n "Restoring old RPC service information..."
				sleep 1 # needs a short pause or pmap_set won't work. :(
				pmap_set </var/run/portmap.upgrade-state
				rm -f /var/run/portmap.upgrade-state
				echo "done."
			fi
			#############_PORTMAP_############
			sleep 1
			############_NFSSERVER_###########
			$EXPORTFS_BIN -r
	
			if ! grep -qs /proc/fs/nfsd /proc/mounts ; then
				mount -t nfsd nfsd /proc/fs/nfsd
			fi	
	
			echo "Exporting directories for $DESC..."
			echo "done."
			echo "Starting $DESC:"
			echo " nfsd"
			start-stop-daemon --start --quiet --exec $NFSD_BIN -- $RPCNFSDCOUNT

			echo " mountd"
			#/sbin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1
			if [ $MOUNTD_PORT_ON -ne 0 ]; then
				start-stop-daemon --start --quiet --exec $MOUNTD_BIN -- -p $MOUNTD_PORT
			else
				start-stop-daemon --start --quiet --exec $MOUNTD_BIN
			fi

			echo "."
			pidof nsfd > $PIDFILE
			############_NFSSERVER_###########
		fi
	;;
	stop)
		#############_PORTMAP_############
		echo -n "Stopping portmap daemon:"
		echo -n " portmap"
		start-stop-daemon --stop --quiet --exec $PORTMAP_BIN
        	echo "."
		#############_PORTMAP_############
		sleep 1
		############_NFSSERVER_###########
		echo "Stopping $DESC: mountd"
		start-stop-daemon --stop --quiet --name mountd --user 0
		sleep 1
		echo " nfsd"
		start-stop-daemon --stop --quiet --name nfsd --user 0 --signal 2
		rm -rf $PIDFILE
		echo "."

		echo "Unexporting directories for $DESC..."
		$EXPORTFS_BIN -au
		if grep -qs /proc/fs/nfsd /proc/mounts ; then
			umount /proc/fs/nfsd
		fi
		rm -rf /tmp/etab
		rm -rf /tmp/rmtab
		rm -rf /tmp/xtab
		rm -rf /var/lib/nfs
		echo "done."
		############_NFSSERVER_###########
	;;
	reload | force-reload)
		############_NFSSERVER_###########
		echo "Re-exporting directories for $DESC..."
		$EXPORTFS_BIN -r
		echo "done."
		############_NFSSERVER_###########
	;;
	restart)
		echo "restarting $DESC: $NAME... "
		$0 stop
		sleep 1
		$0 start
		echo "done."
	;;
  	*)
		echo "Usage: nfs-kernel-server & portmap {start|stop|reload|force-reload|restart}"
		exit 1
	;;
esac

exit 0