1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
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14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
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20# CDDL HEADER END
21#
22
23#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
33
34#
35# DESCRIPTION:
36# The following options can be set on a temporary basis using the -o option
37# without affecting the on-disk property. The original on-disk value will be
38# restored when the file system is unmounted and mounted.
39#
40#         PROPERTY		MOUNT OPTION
41#	  atime			atime/noatime
42#	  devices		devices/nodevices
43#	  exec			exec/noexec
44#	  readonly		ro/rw
45#	  setuid		setuid/nosetuid
46#
47# STRATEGY:
48#	1. Create filesystem and get origianl property value.
49#	2. Using 'zfs mount -o' to set filesystem property.
50#	3. Verify the property was set temporarily.
51#	4. Verify it will not affect the property that is stored on disk.
52#
53
54function cleanup
55{
56	if ! ismounted $TESTPOOL/$TESTFS; then
57		log_must zfs mount $TESTPOOL/$TESTFS
58	fi
59}
60
61log_assert "Verify '-o' will set filesystem property temporarily, " \
62	"without affecting the property that is stored on disk."
63log_onexit cleanup
64
65set -A properties "atime" "devices" "exec" "readonly" "setuid"
66
67#
68# Get the specified filesystem property reverse mount option.
69#
70# $1 filesystem
71# $2 property
72#
73function get_reverse_option
74{
75	typeset fs=$1
76	typeset prop=$2
77
78	# Define property value: "reverse if value=on" "reverse if value=off"
79	set -A values "noatime"   "atime" \
80		      "nodevices" "devices" \
81		      "noexec"    "exec" \
82		      "rw"        "ro" \
83		      "nosetuid"  "setuid"
84
85	typeset -i i=0
86	while (( i < ${#properties[@]} )); do
87		if [[ $prop == ${properties[$i]} ]]; then
88			break
89		fi
90
91		(( i += 1 ))
92	done
93	if (( i >= ${#properties[@]} )); then
94		log_fail "Incorrect option: $prop"
95	fi
96
97	typeset val
98	typeset -i ind=0
99	val=$(get_prop $prop $fs) || log_fail "get_prop $prop $fs"
100	if [[ $val == "on" ]]; then
101		(( ind = i * 2 ))
102	else
103		(( ind = i * 2 + 1 ))
104	fi
105
106	echo ${values[$ind]}
107}
108
109fs=$TESTPOOL/$TESTFS
110cleanup
111
112for property in ${properties[@]}; do
113	orig_val=$(get_prop $property $fs)
114	(($? != 0)) && log_fail "get_prop $property $fs"
115
116	# Set filesystem property temporarily
117	reverse_opt=$(get_reverse_option $fs $property)
118	log_must zfs mount -o remount,$reverse_opt $fs
119
120	cur_val=$(get_prop $property $fs)
121	(($? != 0)) && log_fail "get_prop $property $fs"
122
123	# In LZ, a user with all zone privileges can never with "devices"
124	if ! is_global_zone && [[ $property == devices ]] ; then
125		if [[ $cur_val != off || $orig_val != off ]]; then
126			log_fail "'devices' property shouldn't " \
127				"be enabled in LZ"
128		fi
129	elif [[ $orig_val == $cur_val ]]; then
130		log_fail "zfs mount -o remount,$reverse_opt " \
131			"doesn't change property."
132	fi
133
134	# unmount & mount will revert property to the original value
135	log_must zfs unmount $fs
136	log_must zfs mount $fs
137
138	cur_val=$(get_prop $property $fs)
139	(($? != 0)) && log_fail "get_prop $property $fs"
140	if [[ $orig_val != $cur_val ]]; then
141		log_fail "zfs mount -o remount,$reverse_opt " \
142			"change the property that is stored on disks"
143	fi
144done
145
146log_pass "Verify '-o' set filesystem property temporarily passed."
147