#!/sbin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (the "License").  You may not use this file except in compliance
# with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#pragma ident	"%Z%%M%	%I%	%E% SMI"

# Start/stop processes required for server NFS

. /lib/svc/share/smf_include.sh
zone=${_INIT_ZONENAME:=`/sbin/zonename`}

case "$1" in
'start')
	# The NFS server is not supported in a local zone
	if [ $zone != "global" ] ; then
		/usr/sbin/svcadm disable -t svc:/network/nfs/server
		echo "The NFS server is not supported in a local zone"
		sleep 5 &
		exit $SMF_EXIT_OK
	fi

	# Share any ZFS filesystems marked for sharing.  The environment
	# variable prevents share(1M) from checking whether each filesystem
	# is in use, an O(n^2) operation with no purpose at this time

	if [ -x /usr/sbin/zfs ]; then
		SHARE_NOINUSE_CHECK=1; export SHARE_NOINUSE_CHECK
		/usr/sbin/zfs share -a
		unset SHARE_NOINUSE_CHECK
	fi

	# If /etc/dfs/dfstab exists and has non-blank or non-commented-out
	# lines, then run shareall to export them.

	startnfsd=0
	if [ -f /etc/dfs/dfstab ] && /usr/bin/egrep -v '^[	 ]*(#|$)' \
	    /etc/dfs/dfstab >/dev/null 2>&1; then

		/usr/sbin/shareall -F nfs
	fi


	# Start up mountd and nfsd if anything is exported.

	if /usr/bin/grep -s nfs /etc/dfs/sharetab >/dev/null; then
		startnfsd=1
	fi

	# When the system comes up umask is not set; so set the mode now

	[ -f /etc/dfs/sharetab ] && /usr/bin/chmod 644 /etc/dfs/sharetab

	# Start nfslogd if /etc/nfs/nfslogtab exists and is not empty
	# This means that either we just shared new filesystems with
	# logging enabled, or they were shared in the previous session
	# and their working buffers haven't been processed yet.

	if [ -s /etc/nfs/nfslogtab ]; then
		/usr/lib/nfs/nfslogd &
	fi

	# Options for nfsd are now set in /etc/default/nfs
	if [ $startnfsd -ne 0 ]; then
		/usr/lib/nfs/mountd
		/usr/lib/nfs/nfsd
	else
		/usr/sbin/svcadm disable -t svc:/network/nfs/server
		echo "No NFS filesystems are shared"
		sleep 5 &
	fi

	;;

'refresh')
	/usr/sbin/shareall -F nfs
	;;

'stop')
	/usr/bin/pkill -x -u 0,1 -z $zone '(nfsd|mountd)'

	# Unshare shared ZFS filesystems.

	if [ -x /usr/sbin/zfs ]; then
		/usr/sbin/zfs unshare -a
	fi

	# Unshare remaining shared filesystems.

	if /usr/bin/grep -s nfs /etc/dfs/sharetab >/dev/null; then
		/usr/sbin/unshareall -F nfs
	fi

	#
	# Wait up to 10 seconds for nfslogd to gracefully handle SIGHUP
	#
	/usr/bin/pkill -HUP -x -u 0 -z $zone nfslogd
	wtime=10

	while [ $wtime -gt 0 ]; do
		/usr/bin/pgrep -x -u 0 -z $zone nfslogd >/dev/null || break
		wtime=`expr $wtime - 1`
		sleep 1
	done

	#
	# Kill nfslogd more forcefully if it did not shutdown during
	# the grace period
	#
	if [ $wtime -eq 0 ]; then
		/usr/bin/pkill -TERM -x -u 0 -z $zone nfslogd
	fi

	# Kill any processes left in service contract
	smf_kill_contract $2 TERM 1
	[ $? -ne 0 ] && exit 1
	;;

*)
	echo "Usage: $0 { start | stop | refresh }"
	exit 1
	;;
esac
exit $SMF_EXIT_OK