1#!/usr/local/bin/ksh93 -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.
13#
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]
19#
20# CDDL HEADER END
21#
22
23# $FreeBSD$
24
25#
26# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)zfs_mount_008_pos.ksh	1.3	09/01/13 SMI"
30#
31
32. $STF_SUITE/tests/cli_root/zfs_mount/zfs_mount.kshlib
33
34#################################################################################
35#
36# __stc_assertion_start
37#
38# ID: zfs_mount_008_pos
39#
40# DESCRIPTION:
41#	'zfs mount -O' allow the file system to be mounted over an existing
42#	mount point, making the underlying file system inaccessible.
43#
44# STRATEGY:
45#	1. Create two filesystem fs & fs1, and create two test files for them.
46#	2. Unmount fs1 and set mountpoint property is identical to fs.
47#	3. Verify 'zfs mount -O' will make the underlying filesystem fs
48#	   inaccessible.
49#
50# TESTABILITY: explicit
51#
52# TEST_AUTOMATION_LEVEL: automated
53#
54# CODING_STATUS: COMPLETED (2006-08-02)
55#
56# __stc_assertion_end
57#
58################################################################################
59
60function cleanup
61{
62	! ismounted $fs && log_must $ZFS mount $fs
63
64	if datasetexists $fs1; then
65		log_must $ZFS destroy $fs1
66	fi
67
68	if [[ -f $testfile ]]; then
69		log_must $RM -f $testfile
70	fi
71}
72
73log_assert "Verify 'zfs mount -O' will override existing mount point."
74log_onexit cleanup
75
76fs=$TESTPOOL/$TESTFS; fs1=$TESTPOOL/$TESTFS1
77
78cleanup
79
80# Get the original mountpoint of $fs and $fs1
81mntpnt=$(get_prop mountpoint $fs)
82log_must $ZFS create $fs1
83mntpnt1=$(get_prop mountpoint $fs1)
84
85testfile=$mntpnt/$TESTFILE0; testfile1=$mntpnt1/$TESTFILE1
86log_must $MKFILE 1M $testfile $testfile1
87
88log_must $ZFS unmount $fs1
89log_must $ZFS set mountpoint=$mntpnt $fs1
90log_must $ZFS mount $fs1
91
92# Create new file in override mountpoint
93log_must $MKFILE 1M $mntpnt/$TESTFILE2
94
95# Verify the underlying file system inaccessible
96log_mustnot $LS $testfile
97log_must $LS $mntpnt/$TESTFILE1 $mntpnt/$TESTFILE2
98
99# Verify $TESTFILE2 was created in $fs1, rather then $fs
100log_must $ZFS unmount $fs1
101log_must $ZFS set mountpoint=$mntpnt1 $fs1
102log_must $ZFS mount $fs1
103log_must $LS $testfile1 $mntpnt1/$TESTFILE2
104
105# Verify $TESTFILE2 was not created in $fs, and $fs is accessible again.
106log_mustnot $LS $mntpnt/$TESTFILE2
107log_must $LS $testfile
108
109log_pass "Verify 'zfs mount -O' override mount point passed."
110