1#
2# CDDL HEADER START
3#
4# The contents of this file are subject to the terms of the
5# Common Development and Distribution License (the "License").
6# You may not use this file except in compliance with the License.
7#
8# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9# or https://opensource.org/licenses/CDDL-1.0.
10# See the License for the specific language governing permissions
11# and limitations under the License.
12#
13# When distributing Covered Code, include this CDDL HEADER in each
14# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15# If applicable, add the following below this CDDL HEADER, with the
16# fields enclosed by brackets "[]" replaced with your own identifying
17# information: Portions Copyright [yyyy] [name of copyright owner]
18#
19# CDDL HEADER END
20#
21
22#
23# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24# Use is subject to license terms.
25#
26
27#
28# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
29#
30
31. $STF_SUITE/include/libtest.shlib
32. $STF_SUITE/tests/functional/scrub_mirror/default.cfg
33
34function overwrite_verify_mirror
35{
36	typeset AFFECTED_DEVICE=$1
37	typeset OVERWRITING_DEVICE=$2
38
39	typeset atfile=0
40	set -A files
41	set -A cksums
42	set -A newcksums
43
44	while (( atfile < FILE_COUNT )); do
45		files[$atfile]=$TESTDIR/file.$atfile
46		log_must file_write -o create -f $TESTDIR/file.$atfile \
47			-b $FILE_SIZE -c 1
48		cksums[$atfile]=$(cksum ${files[$atfile]})
49		(( atfile = atfile + 1 ))
50	done
51
52	# dd the affected side of the mirror
53	log_must dd if=$OVERWRITING_DEVICE of=$AFFECTED_DEVICE \
54		seek=8 bs=$DD_BLOCK count=$(( DD_COUNT - 128 )) conv=notrunc
55
56	log_must zpool scrub $TESTPOOL
57	log_must wait_scrubbed $TESTPOOL
58
59	atfile=0
60
61	typeset -i failedcount=0
62	while (( atfile < FILE_COUNT )); do
63		files[$atfile]=$TESTDIR/file.$atfile
64		newcksum=$(cksum ${files[$atfile]})
65		if [[ $newcksum != ${cksums[$atfile]} ]]; then
66			(( failedcount = failedcount + 1 ))
67		fi
68		rm -f ${files[$atfile]}
69		(( atfile = atfile + 1 ))
70	done
71
72	if (( $failedcount > 0 )); then
73		log_fail "of the $FILE_COUNT files $failedcount did not " \
74		    "have the same checksum before and after."
75	fi
76}
77