tests/zfs-tests/tests/functional/clean_mirror/clean_mirror_common.kshlib

   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 http://www.opensolaris.org/os/licensing.
  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 by Delphix. All rights reserved.
  29 #
  30
  31 . $STF_SUITE/tests/functional/clean_mirror/default.cfg
  32
  33 # Most of the code related to the clearing of mirrors is duplicated in all
  34 # the test cases below this directory, barring a few minor changes
  35 # involving the device to be affected and the 'object' to use to mangle
  36 # the contents of the mirror.
  37 # This code is sourced into each of these test cases.
  38
  39 function overwrite_verify_mirror
  40 {
  41         typeset AFFECTED_DEVICE=$1
  42         typeset OVERWRITING_DEVICE=$2
  43
  44         typeset atfile=0
  45         set -A files
  46         set -A cksums
  47         set -A newcksums
  48
  49         while (( atfile < FILE_COUNT )); do
  50                 files[$atfile]=$TESTDIR/file.$atfile
  51                 log_must $FILE_WRITE -o create -f $TESTDIR/file.$atfile \
  52                         -b $FILE_SIZE -c 1
  53                 cksums[$atfile]=$($CKSUM ${files[$atfile]})
  54                 (( atfile = atfile + 1 ))
  55         done
  56
  57         # dd the primary side of the mirror
  58         log_must $DD if=$OVERWRITING_DEVICE of=$AFFECTED_DEVICE \
  59                 seek=8 bs=$DD_BLOCK count=$(( DD_COUNT - 128 )) conv=notrunc
  60
  61         atfile=0
  62
  63         typeset -i failedcount=0
  64         while (( atfile < FILE_COUNT )); do
  65                 files[$atfile]=$TESTDIR/file.$atfile
  66                 newcksum=$($CKSUM ${files[$atfile]})
  67                 if [[ $newcksum != ${cksums[$atfile]} ]]; then
  68                         (( failedcount = failedcount + 1 ))
  69                 fi
  70                 $RM -f ${files[$atfile]}
  71                 (( atfile = atfile + 1 ))
  72         done
  73
  74         if (( $failedcount > 0 )); then
  75                 log_fail "of the $FILE_COUNT files $failedcount did not " \
  76                     "have the same checksum before and after."
  77         fi
  78 }