#!/bin/sh

DAEMON=nfsd
DAEMON_CHECK="portmap nfsd mountd"
. /etc/init.d/modlibrc

PROCNFSD_DIR=/proc/fs/nfsd

start() {
	set -o noglob
	echo -n 'Starting nfsd ... '

	if [ ! -e /etc/exports ]; then
		echo "can't open /etc/exports ... failed."
		exit 1
	fi

	modprobe nfsd > /dev/null 2>&1

	# Fill /proc/fs/nfsd
	mount -t nfsd nfsd $PROCNFSD_DIR > /dev/null 2>&1

	# set max rsize/wsize supported by server to 64kb
	[ -e $PROCNFSD_DIR/max_block_size ] && echo 65536 > $PROCNFSD_DIR/max_block_size

	local NFS_DIR=/var/lib/nfs
	mkdir -p $NFS_DIR
	for file in etab rmtab xtab; do
		touch $NFS_DIR/$file
	done

	/usr/sbin/portmap
 	exitval1=$?
	/usr/sbin/exportfs -r > /dev/null 2>&1
 	exitval2=$?
	/usr/sbin/nfsd
 	exitval3=$?
	/usr/sbin/mountd
	exitval4=$?

	if [ "$exitval1" -eq 0 ] && [ "$exitval2" -eq 0 ] \
		&& [ "$exitval3" -eq 0 ] && [ "$exitval4" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		return 1
	fi
}

stop() {
	killall mountd >/dev/null 2>&1
	exitval1=$?
	killall -9 nfsd > /dev/null 2>&1
	exitval2=$?
	/usr/sbin/exportfs -au
	exitval3=$?
	killall portmap > /dev/null 2>&1
	exitval4=$?
	umount $PROCNFSD_DIR > /dev/null 2>&1
	[ "$exitval1" -eq 0 -a "$exitval2" -eq 0 -a "$exitval3" -eq 0 -a "$exitval4" -eq 0 ] && return 0
}

reload() {
	/usr/sbin/exportfs -r > /dev/null 2>&1
}

case $1 in
	""|load)
		[ -d "/tmp/flash/nfsd" ] || mkdir -p /tmp/flash/nfsd
		ln -fs /tmp/flash/nfsd/exports /var/tmp/exports

		# portmap needs this
		modlib_addgroup nobody
		modlib_adduser nobody -s /bin/false -D -S -H -G nobody -g 'nobody'

		modreg cgi 'nfsd' 'NFS-Server'
		modreg daemon $DAEMON
		modreg file nfsd hosts_allow 'hosts.allow' 1 "hosts_allow"
		modreg file nfsd hosts_deny 'hosts.deny' 1 "hosts_deny"
		modreg file nfsd exports 'exports' 1 "exports"

		modlib_start $NFSD_ENABLED
		;;
	unload)
		modunreg file nfsd
		modunreg daemon $DAEMON
		modunreg cgi nfsd
		modlib_stop
		rmmod nfsd lock sunrpc exportfs > /dev/null 2>&1
		;;
	start)
		modlib_start
		;;
	stop)
		modlib_stop
		;;
	reload)
		modlib_reload
		;;
	restart)
		modlib_restart
		;;
	status)
		modlib_status
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|reload|status]" 1>&2
		exit 1
		;;
esac

exit 0