1# vim: filetype=sh
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	"@(#)scrub_mirror_common.kshlib	1.5	07/10/09 SMI"
30#
31
32function overwrite_verify_mirror
33{
34	typeset POOL=$1
35	typeset AFFECTED_DEVICE=$2
36	typeset OVERWRITING_DEVICE=$3
37
38	typeset atfile=0
39	set -A files
40	set -A cksums
41	set -A newcksums
42
43	fill_fs $TESTDIR -1 $FILE_COUNT $BLOCKSZ $WRITE_COUNT
44	while [ "$atfile" -lt "$FILE_COUNT" ]; do
45		if [ -f ${TESTDIR}/0/${TESTFILE}.${atfile} ]; then
46			cksums[$atfile]=$($CKSUM ${TESTDIR}/0/${TESTFILE}.${atfile})
47		fi
48		(( atfile = $atfile + 1 ))
49	done
50
51	# unmount and export before dd
52	log_must $ZPOOL export $POOL
53
54	# dd the affected side of the mirror
55	log_must $DD if=$OVERWRITING_DEVICE of=$(bsddevmap $AFFECTED_DEVICE) \
56		seek=8 bs=$BLOCKSZ count=$(( WRITE_COUNT - 8 )) conv=notrunc
57
58	# now remount and scrub
59	log_must $ZPOOL import $POOL
60	log_must $ZPOOL scrub $POOL
61	wait_for 60 1 is_pool_scrubbed $POOL
62
63	atfile=0
64	typeset -i failedcount=0
65	while [ "$atfile" -lt "$FILE_COUNT" ]; do
66		if [ -f ${TESTDIR}/0/${TESTFILE}.${atfile} ]; then
67			newcksum=$($CKSUM $TESTDIR/0/${TESTFILE}.${atfile})
68			if [[ $newcksum != ${cksums[$atfile]} ]]; then
69				(( failedcount = $failedcount + 1 ))
70			else
71				log_note "${TESTFILE}.${atfile} checksums match:"\
72				    "old ${cksums[$atfile]} new $newcksum"
73			fi
74			$RM -f ${files[$atfile]}
75		fi
76		(( atfile = $atfile + 1 ))
77	done
78
79	if [ "$failedcount" -gt 0 ]; then
80		log_fail "of the $FILE_COUNT files $failedcount did not " \
81		    "have the same checksum before and after."
82	fi
83}
84