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 https://opensource.org/licenses/CDDL-1.0.
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#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/include/libtest.shlib
33. $STF_SUITE/tests/functional/snapshot/snapshot.cfg
34
35#
36# DESCRIPTION:
37# An archive of a zfs file system and an archive of its snapshot
38# is identical even though the original file system has
39# changed since the snapshot was taken.
40#
41# STRATEGY:
42# 1) Create files in all of the zfs file systems
43# 2) Create a tarball of the file system
44# 3) Create a snapshot of the dataset
45# 4) Remove all the files in the original file system
46# 5) Create a tarball of the snapshot
47# 6) Extract each tarball and compare directory structures
48#
49
50verify_runnable "both"
51
52function cleanup
53{
54	[ -d $CWD ] && log_must cd $CWD
55
56	snapexists $SNAPFS && log_must zfs destroy $SNAPFS
57
58	[ -e $SNAPDIR ] && log_must rm -rf $SNAPDIR
59	[ -e $TESTDIR ] && log_must rm -rf $TESTDIR/*
60	[ -d "$SNAPSHOT_TARDIR" ] && log_must rm -rf $SNAPSHOT_TARDIR
61}
62
63log_assert "Verify an archive of a file system is identical to " \
64    "an archive of its snapshot."
65
66SNAPSHOT_TARDIR="$(mktemp -d /tmp/zfstests_snapshot_002.XXXXXX)"
67log_onexit cleanup
68
69typeset -i COUNT=21
70typeset OP=create
71
72[ -n $TESTDIR ] && rm -rf $TESTDIR/*
73
74log_note "Create files in the zfs filesystem..."
75
76typeset i=1
77while [ $i -lt $COUNT ]; do
78	log_must file_write -o $OP -f $TESTDIR/file$i \
79	    -b $BLOCKSZ -c $NUM_WRITES -d $DATA
80	(( i = i + 1 ))
81done
82
83log_note "Create a tarball from $TESTDIR contents..."
84CWD=$PWD
85log_must cd $TESTDIR
86log_must tar cf $SNAPSHOT_TARDIR/original.tar .
87log_must cd $CWD
88
89log_note "Create a snapshot and mount it..."
90log_must zfs snapshot $SNAPFS
91
92log_note "Remove all of the original files..."
93log_must rm -f $TESTDIR/file*
94
95log_note "Create tarball of snapshot..."
96CWD=$PWD
97log_must cd $SNAPDIR
98log_must tar cf $SNAPSHOT_TARDIR/snapshot.tar .
99log_must cd $CWD
100
101log_must mkdir $TESTDIR/original $TESTDIR/snapshot
102
103CWD=$PWD
104log_must cd $TESTDIR/original
105log_must tar xf $SNAPSHOT_TARDIR/original.tar
106
107log_must cd $TESTDIR/snapshot
108log_must tar xf $SNAPSHOT_TARDIR/snapshot.tar
109
110log_must cd $CWD
111
112log_must directory_diff $TESTDIR/original $TESTDIR/snapshot
113log_pass "Directory structures match."
114