#!/bin/sh
#
# nfs           This shell script takes care of starting and stopping
#               the NFS services.
#
# chkconfig: - 60 20
# 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

# Source networking configuration.
if [ ! -f /etc/sysconfig/network ]; then
    exit 0
fi

. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -x /usr/sbin/rpc.nfsd ] || exit 0
[ -x /usr/sbin/rpc.mountd ] || exit 0
[ -x /usr/sbin/exportfs ] || exit 0

# Don't fail if /etc/exports doesn't exist; create a bare-bones version and continue.
[ -s /etc/exports ] || \
    { echo "#" > /etc/exports && chmod u+rw,g+r,o+r /etc/exports ; } || \
    { echo "/etc/exports does not exist" ; exit 0 ; }

# Number of servers to be started by default
RPCNFSDCOUNT=8

# NFSv3 only if kernel >= 2.2.18
OS_RELEASE=`uname --release`
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 [ "$OS_RELEASE_MINOR" -gt 2 ]; then
	RPCMOUNTDOPTS=
elif [ "$OS_RELEASE_MINOR" -eq 2 -a "$OS_RELEASE_VERSION" -ge 18 ]; then
	RPCMOUNTDOPTS=
else
	RPCMOUNTDOPTS="--no-nfs-version 3"
fi

if [ -n "$MOUNTD_PORT" ]; then
    RPCMOUNTDOPTS="$RPCMOUNTDOPTS --port $MOUNTD_PORT"
fi

# See how we were called.
case "$1" in
  start)
	# Start daemons.
	action "Starting NFS services: " /usr/sbin/exportfs -r
	if [ -x /usr/sbin/rpc.rquotad ] ; then
	    echo -n "Starting NFS quotas: "
	    daemon rpc.rquotad
	    echo
	fi
	echo -n "Starting NFS mountd: "
	daemon rpc.mountd $RPCMOUNTDOPTS
	echo
	echo -n "Starting NFS daemon: "
	daemon rpc.nfsd $RPCNFSDCOUNT
	echo
	touch /var/lock/subsys/nfs
	;;
  stop)
	# Stop daemons.
	echo -n "Shutting down NFS mountd: "
	killproc rpc.mountd
	echo
	echo -n "Shutting down NFS daemon: "
	killproc nfsd
	echo
	action "Shutting down NFS services: " /usr/sbin/exportfs -au
	if [ -x /usr/sbin/rpc.rquotad ] ; then
	    echo -n "Shutting down NFS quotas: "
	    killproc rpc.rquotad
	    echo
	fi
	rm -f /var/lock/subsys/nfs
	;;
  status)
	status rpc.mountd
	status nfsd
	if [ -x /usr/sbin/rpc.rquotad ] ; then
	    status rpc.rquotad
	fi
	;;
  restart)
	echo -n "Restarting NFS services: "
	echo -n "rpc.mountd "
	killproc rpc.mountd
	daemon rpc.mountd $RPCMOUNTDOPTS
	/usr/sbin/exportfs -r
	touch /var/lock/subsys/nfs
	echo
	;;
  reload)
	/usr/sbin/exportfs -r
	touch /var/lock/subsys/nfs
	;;
  probe)
	if [ ! -f /var/lock/subsys/nfs ] ; then
	  echo start; exit 0
	fi
	/sbin/pidof rpc.mountd >/dev/null 2>&1; MOUNTD="$?"
	/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
	;;
  *)
	echo "Usage: $0 {start|stop|status|restart|reload}"
	exit 1
esac

exit 0