tests/qemu-iotests/171

   1 #!/usr/bin/env bash
   2 # group: rw quick
   3 #
   4 # Test 'offset' and 'size' options of the raw driver. Make sure we can't
   5 # (or can) read and write outside of the image size.
   6 #
   7 # Copyright (C) 2016 Red Hat, Inc.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 # creator
  24 owner=tgolembi@redhat.com
  25
  26 seq=`basename $0`
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33     _cleanup_test_img
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40
  41 _supported_fmt raw
  42 _supported_proto file fuse
  43 _supported_os Linux
  44
  45
  46 # Create JSON with options
  47 img_json() {
  48     printf %s 'json:{"driver":"raw", '
  49     printf %s "\"offset\":\"$img_offset\", "
  50     if [ "$img_size" -ne -1 ] ; then
  51         printf %s "\"size\":\"$img_size\", "
  52     fi
  53     printf %s '"file": {'
  54     printf %s   '"driver":"file", '
  55     printf %s   "\"filename\":\"$TEST_IMG\" "
  56     printf %s "} }"
  57 }
  58
  59 do_general_test() {
  60     if [ "$img_size" -ge 0 ] ; then
  61         test_size=$img_size
  62     else
  63         test_size=$((size-img_offset))
  64     fi
  65
  66     echo
  67     echo "write to image"
  68     $QEMU_IO -c "write -P 0x0a 0 $test_size" "$(img_json)" | _filter_qemu_io
  69
  70     echo
  71     echo "read the image"
  72     $QEMU_IO -c "read -P 0x0a 0 $test_size" "$(img_json)" | _filter_qemu_io
  73
  74     echo
  75     echo "check that offset is respected"
  76     $QEMU_IO -c "read -v $((img_offset-2)) 4" $TEST_IMG | _filter_qemu_io
  77
  78     echo
  79     echo "write before image boundary"
  80     $QEMU_IO -c "write $((test_size-1)) 1" "$(img_json)" | _filter_qemu_io
  81
  82     echo
  83     echo "write across image boundary"
  84     $QEMU_IO -c "write $((test_size-1)) 2" "$(img_json)" | _filter_qemu_io
  85
  86     echo
  87     echo "write at image boundary"
  88     $QEMU_IO -c "write $test_size 1" "$(img_json)" | _filter_qemu_io
  89
  90     echo
  91     echo "write after image boundary"
  92     $QEMU_IO -c "write $((test_size+512)) 1" "$(img_json)" | _filter_qemu_io
  93
  94     echo
  95     echo "writev before/after image boundary"
  96     $QEMU_IO -c "writev $((test_size-512)) 512 512" "$(img_json)" | _filter_qemu_io
  97
  98     echo
  99     echo "read before image boundary"
 100     $QEMU_IO -c "read $((test_size-1)) 1" "$(img_json)" | _filter_qemu_io
 101
 102     echo
 103     echo "read across image boundary"
 104     $QEMU_IO -c "read $((test_size-1)) 2" "$(img_json)" | _filter_qemu_io
 105
 106     echo
 107     echo "read at image boundary"
 108     $QEMU_IO -c "read $test_size 1" "$(img_json)" | _filter_qemu_io
 109
 110     echo
 111     echo "read after image boundary"
 112     $QEMU_IO -c "read $((test_size+512)) 1" "$(img_json)" | _filter_qemu_io
 113
 114     echo
 115     echo "readv before/after image boundary"
 116     $QEMU_IO -c "readv $((test_size-512)) 512 512" "$(img_json)" | _filter_qemu_io
 117
 118     echo
 119     echo "fill image with pattern"
 120     $QEMU_IO -c "write -P 0x0a 0 $size" $TEST_IMG | _filter_qemu_io
 121
 122     echo
 123     echo "write zeroes and check"
 124     $QEMU_IO -c "write -z 0 512" "$(img_json)" | _filter_qemu_io
 125     $QEMU_IO -c "read -v $((img_offset-2)) 4" $TEST_IMG | _filter_qemu_io
 126
 127     echo
 128     echo "write zeroes across image boundary"
 129     $QEMU_IO -c "write -z $((test_size-1)) 2" "$(img_json)" | _filter_qemu_io
 130
 131     echo
 132     echo "write zeroes at image boundary and check"
 133     $QEMU_IO -c "write -z $((test_size-2)) 2" "$(img_json)" | _filter_qemu_io
 134     $QEMU_IO -c "read -v $((img_offset+test_size-2)) 2" $TEST_IMG | _filter_qemu_io
 135     $QEMU_IO -c "read -v $((img_offset+test_size)) 2" $TEST_IMG | _filter_qemu_io
 136
 137     echo
 138     echo "fill image with pattern"
 139     $QEMU_IO -c "write -P 0x0a 0 $size" $TEST_IMG | _filter_qemu_io
 140
 141     echo
 142     echo "discard and check"
 143     $QEMU_IO -c "discard 0 512" "$(img_json)" | _filter_qemu_io
 144     $QEMU_IO -c "read -v $((img_offset-2)) 4" $TEST_IMG | _filter_qemu_io
 145
 146     echo
 147     echo "discard across image boundary"
 148     $QEMU_IO -c "discard $((test_size-1)) 2" "$(img_json)" | _filter_qemu_io
 149
 150     echo
 151     echo "discard at image boundary and check"
 152     $QEMU_IO -c "discard $((test_size-2)) 2" "$(img_json)" | _filter_qemu_io
 153     $QEMU_IO -c "read -v $((img_offset+test_size-2)) 2" $TEST_IMG | _filter_qemu_io
 154     $QEMU_IO -c "read -v $((img_offset+test_size)) 2" $TEST_IMG | _filter_qemu_io
 155 }
 156
 157 echo
 158 echo "== test 'offset' option =="
 159 size=4096
 160 img_offset=512
 161 img_size=-1
 162 _make_test_img $size
 163 do_general_test
 164 _cleanup_test_img
 165
 166 echo
 167 echo "== test 'offset' and 'size' options =="
 168 size=4096
 169 img_offset=512
 170 img_size=2048
 171 _make_test_img $size
 172 do_general_test
 173 _cleanup_test_img
 174
 175 echo
 176 echo "== test misaligned 'offset' =="
 177 size=4096
 178 img_offset=10
 179 img_size=2048
 180 _make_test_img $size
 181 do_general_test
 182 _cleanup_test_img
 183
 184 echo
 185 echo "== test reopen =="
 186 size=4096
 187 img_offset=512
 188 img_size=512
 189 _make_test_img $size
 190 (
 191 $QEMU_IO "$(img_json)"  <<EOT
 192 write -P 0x0a 0 512
 193 write -P 0x0a 511 1
 194 write -P 0x0a 512 1
 195 reopen -o driver=raw,offset=1536,size=1024
 196 write -P 0x0a 0 1024
 197 write -P 0x0a 1023 1
 198 write -P 0x0a 1024 1
 199 EOT
 200 ) | _filter_qemu_io
 201 echo "checking boundaries"
 202 $QEMU_IO -c "read -v 510 4" $TEST_IMG | _filter_qemu_io
 203 $QEMU_IO -c "read -v 1022 4" $TEST_IMG | _filter_qemu_io
 204 $QEMU_IO -c "read -v 1534 4" $TEST_IMG | _filter_qemu_io
 205 $QEMU_IO -c "read -v 2558 4" $TEST_IMG | _filter_qemu_io
 206 _cleanup_test_img
 207
 208 # success, all done
 209 echo
 210 echo "*** done"
 211 rm -f $seq.full
 212 status=0