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#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27# ident	"@(#)snapshot_001_pos.ksh	1.2	07/01/09 SMI"
28#
29. $STF_SUITE/include/libtest.kshlib
30
31################################################################################
32#
33# __stc_assertion_start
34#
35# ID: snapshot_001_pos
36#
37# DESCRIPTION:
38# A zfs file system snapshot is identical to
39# the originally snapshot'd file system, after the file
40# system has been changed. Uses 'sum -r'.
41#
42# STRATEGY:
43# 1. Create a file in the zfs file system
44# 2. Checksum the file for later comparison
45# 3. Create a snapshot of the dataset
46# 4. Append to the original file
47# 5. Verify the snapshot and file agree
48#
49# TESTABILITY: explicit
50#
51# TEST_AUTOMATION_LEVEL: automated
52#
53# CODING_STATUS: COMPLETED (2005-07-04)
54#
55# __stc_assertion_end
56#
57###############################################################################
58
59verify_runnable "both"
60
61function cleanup
62{
63	snapexists $SNAPFS
64	if [[ $? -eq 0 ]]; then
65		log_must $ZFS destroy $SNAPFS
66	fi
67
68	if [[ -e $SNAPDIR ]]; then
69		log_must $RM -rf $SNAPDIR > /dev/null 2>&1
70	fi
71
72	if [[ -e $TESTDIR ]]; then
73		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
74	fi
75}
76
77log_assert "Verify a file system snapshot is identical to original."
78
79log_onexit cleanup
80
81log_note "Create a file in the zfs filesystem..."
82log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
83    -c $NUM_WRITES -d $DATA
84
85log_note "Sum the file, save for later comparison..."
86FILE_SUM=`$SUM -r $TESTDIR/$TESTFILE | $AWK  '{ print $1 }'`
87log_note "FILE_SUM = $FILE_SUM"
88
89log_note "Create a snapshot and mount it..."
90log_must $ZFS snapshot $SNAPFS
91
92log_note "Append to the original file..."
93log_must $FILE_WRITE -o append -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
94    -c $NUM_WRITES -d $DATA
95
96SNAP_FILE_SUM=`$SUM -r $SNAPDIR/$TESTFILE | $AWK '{ print $1 }'`
97if [[ $SNAP_FILE_SUM -ne $FILE_SUM ]]; then
98	log_fail "Sums do not match, aborting!! ($SNAP_FILE_SUM != $FILE_SUM)"
99fi
100
101log_pass "Both Sums match. ($SNAP_FILE_SUM == $FILE_SUM)"
102