#!/bin/sh
### BEGIN INIT INFO
# Provides:          nfs-common
# Required-Start:    $portmap hwclock
# Required-Stop:     $portmap hwclock
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: NFS support for both client and server
# Description:       NFS is a popular protocol for file sharing across
#                    TCP/IP networks. This service provides various
#                    support functions for NFS mounts.
### END INIT INFO
#
# Startup script for nfs-utils
#
#
# Location of executables:

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

test -x "$NFS_STATD" || NFS_STATD=/usr/sbin/rpc.statd
test -x "$NFS_IDMAPD" || NFS_IDMAPD=/usr/sbin/rpc.idmapd
test -z "$STATD_PID" && STATD_PID=/var/run/rpc.statd.pid
#
# The default state directory is /var/lib/nfs
test -n "$NFS_STATEDIR" || NFS_STATEDIR=/var/lib/nfs
#
#
#----------------------------------------------------------------------
# Startup and shutdown functions.
#  Actual startup/shutdown is at the end of this file.
#directories
create_directories(){
	echo -n 'creating NFS state directory: '
	mkdir -p "$NFS_STATEDIR"
	(	cd "$NFS_STATEDIR"
		umask 077
		mkdir -p rpc_pipefs
		mkdir -p sm sm.bak statd
		chown rpcuser:rpcuser sm sm.bak statd
		test -w statd/state || {
			rm -f statd/state
			:>statd/state
		}
		umask 022
		for file in xtab etab smtab rmtab
		do
			test -w "$file" || {
				rm -f "$file"
				:>"$file"
			}
		done
	)
	chown rpcuser:rpcuser "$NFS_STATEDIR"
	echo done
}

# Parse the fstab and exports file, determine if we need idmapd.
#
NEED_IDMAPD=no

if [ -f /etc/fstab ]; then
    exec 9<&0 </etc/fstab

    while read DEV MTPT FSTYPE OPTS REST
    do
	case $DEV in
	    ''|\#*)
		continue
		;;
	esac
	# FSTYPE "nfs" can be NFSv4 now
        if [ "$FSTYPE" = "nfs4" ] || [ "$FSTYPE" = "nfs" ]; then
            NEED_IDMAPD=yes
        fi
    done

    exec 0<&9 9<&-
fi

if [ -f /etc/exports ] && grep -q '^[[:space:]]*[^#]*/' /etc/exports; then
    NEED_IDMAPD=yes
fi
#
#idmapd
start_idmapd(){
	if [ "$NEED_IDMAPD" = no ]; then
		return
	fi
	mount -t rpc_pipefs rpc_pipefs $NFS_STATEDIR/rpc_pipefs
	echo -n "starting idmapd: "
	start-stop-daemon --start --exec "$NFS_IDMAPD"
	echo done
}
stop_idmapd(){
	if [ "$NEED_IDMAPD" = no ]; then
		return
	fi
	echo -n 'stopping idmapd: '
	start-stop-daemon --stop --quiet --name rpc.idmapd
	umount $NFS_STATEDIR/rpc_pipefs 2>/dev/null
	echo done
}
#statd
start_statd(){
	echo -n "starting statd: "
	start-stop-daemon --start --exec "$NFS_STATD" --pidfile "$STATD_PID"
	echo done
}
stop_statd(){
	echo -n 'stopping statd: '
	start-stop-daemon --stop --quiet --signal 1 --pidfile "$STATD_PID"
	echo done
}

#----------------------------------------------------------------------
#
# supported options:
#  start
#  stop
#  restart: stops and starts mountd
#FIXME: need to create the /var/lib/nfs/... directories
case "$1" in
  start)
	create_directories
	start_statd
	start_idmapd;;
  stop)	stop_idmapd
	stop_statd;;
  status)
	status $NFS_STATD;
	RETVAL=$?
	if [ "$NEED_IDMAPD" = yes ]
	then
		status $NFS_IDMAPD
		rval=$?
		[ $rval -ne 0 ] && exit $rval
	fi
	exit $RETVAL;;
  restart)
	$0 stop
	$0 start;;
  *)
	echo "Usage: /etc/init.d/nfscommon {start|stop|status|restart}"
	exit 1;;
esac