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