tests/qemu-iotests/244

   1 #!/usr/bin/env bash
   2 #
   3 # Test qcow2 with external data files
   4 #
   5 # Copyright (C) 2019 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=kwolf@redhat.com
  23
  24 seq=$(basename $0)
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _cleanup_test_img
  32     rm -f $TEST_IMG.data
  33     rm -f $TEST_IMG.src
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40
  41 _supported_fmt qcow2
  42 _supported_proto file
  43 _supported_os Linux
  44
  45 echo
  46 echo "=== Create and open image with external data file ==="
  47 echo
  48
  49 echo "With data file name in the image:"
  50 IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
  51 _check_test_img
  52
  53 $QEMU_IO -c "open $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  54 $QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  55 $QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  56
  57 echo
  58 echo "Data file required, but without data file name in the image:"
  59 $QEMU_IMG amend -odata_file= $TEST_IMG
  60
  61 $QEMU_IO -c "open $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  62 $QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  63 $QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  64
  65 echo
  66 echo "Setting data-file for an image with internal data:"
  67 _make_test_img 64M
  68
  69 $QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  70 $QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir
  71
  72 echo
  73 echo "=== Conflicting features ==="
  74 echo
  75
  76 echo "Convert to compressed target with data file:"
  77 TEST_IMG="$TEST_IMG.src" _make_test_img 64M
  78
  79 $QEMU_IO -c 'write -P 0x11 0 1M' \
  80          -f $IMGFMT "$TEST_IMG.src" |
  81          _filter_qemu_io
  82
  83 $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c -odata_file="$TEST_IMG.data" \
  84     "$TEST_IMG.src" "$TEST_IMG"
  85
  86 echo
  87 echo "Convert uncompressed, then write compressed data manually:"
  88 $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -odata_file="$TEST_IMG.data" \
  89     "$TEST_IMG.src" "$TEST_IMG"
  90 $QEMU_IMG compare "$TEST_IMG.src" "$TEST_IMG"
  91
  92 $QEMU_IO -c 'write -c -P 0x22 0 1M' \
  93          -f $IMGFMT "$TEST_IMG" |
  94          _filter_qemu_io
  95 _check_test_img
  96
  97 echo
  98 echo "Take an internal snapshot:"
  99
 100 $QEMU_IMG snapshot -c test "$TEST_IMG"
 101 _check_test_img
 102
 103 echo
 104 echo "=== Standalone image with external data file (efficient) ==="
 105 echo
 106
 107 IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
 108
 109 echo -n "qcow2 file size before I/O: "
 110 du -b $TEST_IMG | cut -f1
 111
 112 # Create image with the following layout
 113 # 0-1 MB: Unallocated
 114 # 1-2 MB: Written (pattern 0x11)
 115 # 2-3 MB: Discarded
 116 # 3-4 MB: Zero write over discarded space
 117 # 4-5 MB: Zero write over written space
 118 # 5-6 MB: Zero write over unallocated space
 119
 120 echo
 121 $QEMU_IO -c 'write -P 0x11 1M 4M' \
 122          -c 'discard 2M 2M' \
 123          -c 'write -z 3M 3M' \
 124          -f $IMGFMT "$TEST_IMG" |
 125          _filter_qemu_io
 126 _check_test_img
 127
 128 echo
 129 $QEMU_IMG map --output=json "$TEST_IMG"
 130
 131 echo
 132 $QEMU_IO -c 'read -P 0 0 1M' \
 133          -c 'read -P 0x11 1M 1M' \
 134          -c 'read -P 0 2M 4M' \
 135          -f $IMGFMT "$TEST_IMG" |
 136          _filter_qemu_io
 137
 138 # Zero clusters are only marked as such in the qcow2 metadata, but contain
 139 # stale data in the external data file
 140 echo
 141 $QEMU_IO -c 'read -P 0 0 1M' \
 142          -c 'read -P 0x11 1M 1M' \
 143          -c 'read -P 0 2M 2M' \
 144          -c 'read -P 0x11 4M 1M' \
 145          -c 'read -P 0 5M 1M' \
 146          -f raw "$TEST_IMG.data" |
 147          _filter_qemu_io
 148
 149
 150 echo -n "qcow2 file size after I/O: "
 151 du -b $TEST_IMG | cut -f1
 152
 153 echo
 154 echo "=== Standalone image with external data file (valid raw) ==="
 155 echo
 156
 157 IMGOPTS="data_file=$TEST_IMG.data,data_file_raw=on" _make_test_img 64M
 158
 159 echo -n "qcow2 file size before I/O: "
 160 du -b $TEST_IMG | cut -f1
 161
 162 echo
 163 $QEMU_IO -c 'write -P 0x11 1M 4M' \
 164          -c 'discard 2M 2M' \
 165          -c 'write -z 3M 3M' \
 166          -f $IMGFMT "$TEST_IMG" |
 167          _filter_qemu_io
 168 _check_test_img
 169
 170 echo
 171 $QEMU_IMG map --output=json "$TEST_IMG"
 172
 173 echo
 174 $QEMU_IO -c 'read -P 0 0 1M' \
 175          -c 'read -P 0x11 1M 1M' \
 176          -c 'read -P 0 2M 4M' \
 177          -f $IMGFMT "$TEST_IMG" |
 178          _filter_qemu_io
 179
 180 echo
 181 $QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.data"
 182
 183 echo -n "qcow2 file size after I/O: "
 184 du -b $TEST_IMG | cut -f1
 185
 186 echo
 187 echo "=== bdrv_co_block_status test for file and offset=0 ==="
 188 echo
 189
 190 IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
 191
 192 $QEMU_IO -c 'write -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
 193 $QEMU_IO -c 'read -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
 194 $QEMU_IMG map --output=human "$TEST_IMG" | _filter_testdir
 195 $QEMU_IMG map --output=json "$TEST_IMG"
 196
 197 # success, all done
 198 echo "*** done"
 199 rm -f $seq.full
 200 status=0