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 2007 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)snapshot_001_pos.ksh	1.2	07/01/09 SMI"
30#
31. $STF_SUITE/include/libtest.kshlib
32
33################################################################################
34#
35# __stc_assertion_start
36#
37# ID: snapshot_001_pos
38#
39# DESCRIPTION:
40# A zfs file system snapshot is identical to
41# the originally snapshot'd file system, after the file
42# system has been changed. Uses 'sum -r'.
43#
44# STRATEGY:
45# 1. Create a file in the zfs file system
46# 2. Checksum the file for later comparison
47# 3. Create a snapshot of the dataset
48# 4. Append to the original file
49# 5. Verify the snapshot and file agree
50#
51# TESTABILITY: explicit
52#
53# TEST_AUTOMATION_LEVEL: automated
54#
55# CODING_STATUS: COMPLETED (2005-07-04)
56#
57# __stc_assertion_end
58#
59###############################################################################
60
61verify_runnable "both"
62
63function cleanup
64{
65	snapexists $SNAPFS
66	if [[ $? -eq 0 ]]; then
67		log_must $ZFS destroy $SNAPFS
68	fi
69
70	if [[ -e $SNAPDIR ]]; then
71		log_must $RM -rf $SNAPDIR > /dev/null 2>&1
72	fi
73
74	if [[ -e $TESTDIR ]]; then
75		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
76	fi
77}
78
79log_assert "Verify a file system snapshot is identical to original."
80
81log_onexit cleanup
82
83log_note "Create a file in the zfs filesystem..."
84log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
85    -c $NUM_WRITES -d $DATA
86
87log_note "Sum the file, save for later comparison..."
88FILE_SUM=`$SUM -r $TESTDIR/$TESTFILE | $AWK  '{ print $1 }'`
89log_note "FILE_SUM = $FILE_SUM"
90
91log_note "Create a snapshot and mount it..."
92log_must $ZFS snapshot $SNAPFS
93
94log_note "Append to the original file..."
95log_must $FILE_WRITE -o append -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
96    -c $NUM_WRITES -d $DATA
97
98SNAP_FILE_SUM=`$SUM -r $SNAPDIR/$TESTFILE | $AWK '{ print $1 }'`
99if [[ $SNAP_FILE_SUM -ne $FILE_SUM ]]; then
100	log_fail "Sums do not match, aborting!! ($SNAP_FILE_SUM != $FILE_SUM)"
101fi
102
103log_pass "Both Sums match. ($SNAP_FILE_SUM == $FILE_SUM)"
104