tests/qemu-iotests/131

   1 #!/usr/bin/env bash
   2 # group: rw quick
   3 #
   4 # parallels format validation tests (created by QEMU)
   5 #
   6 # Copyright (C) 2014 Denis V. Lunev <den@openvz.org>
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 # creator
  23 owner=den@openvz.org
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39
  40 _supported_fmt parallels
  41 _supported_proto file
  42 _supported_os Linux
  43
  44 inuse_offset=$((0x2c))
  45
  46 size=$((64 * 1024 * 1024))
  47 CLUSTER_SIZE=64k
  48 IMGFMT=parallels
  49 _make_test_img $size
  50
  51 echo == read empty image ==
  52 { $QEMU_IO -c "read -P 0 32k 64k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  53 echo == write more than 1 block in a row ==
  54 { $QEMU_IO -c "write -P 0x11 32k 128k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  55 echo == read less than block ==
  56 { $QEMU_IO -c "read -P 0x11 32k 32k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  57 echo == read exactly 1 block ==
  58 { $QEMU_IO -c "read -P 0x11 64k 64k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  59 echo == read more than 1 block ==
  60 { $QEMU_IO -c "read -P 0x11 32k 128k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  61 echo == check that there is no trash after written ==
  62 { $QEMU_IO -c "read -P 0 160k 32k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  63 echo == check that there is no trash before written ==
  64 { $QEMU_IO -c "read -P 0 0 32k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  65
  66 echo "== Corrupt image =="
  67 poke_file "$TEST_IMG" "$inuse_offset" "\x59\x6e\x6f\x74"
  68 { $QEMU_IO -c "read -P 0x11 64k 64k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  69 _check_test_img
  70 _check_test_img -r all
  71 { $QEMU_IO -c "read -P 0x11 64k 64k" "$TEST_IMG"; } 2>&1 | _filter_qemu_io | _filter_testdir
  72
  73 echo "== allocate with backing =="
  74 # Verify that allocating clusters works fine even when there is a backing image.
  75 # Regression test for a bug where we would pass a buffer read from the backing
  76 # node as a QEMUIOVector object, which could cause anything from I/O errors over
  77 # assertion failures to invalid reads from memory.
  78
  79 # Clear image
  80 _make_test_img $size
  81 # Create base image
  82 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  83
  84 # Write some data to the base image (which would trigger an assertion failure if
  85 # interpreted as a QEMUIOVector)
  86 $QEMU_IO -c 'write -P 42 0 64k' "$TEST_IMG.base" | _filter_qemu_io
  87
  88 # Parallels does not seem to support storing a backing filename in the image
  89 # itself, so we need to build our backing chain on the command line
  90 imgopts="driver=$IMGFMT,file.driver=$IMGPROTO,file.filename=$TEST_IMG"
  91 imgopts+=",backing.driver=$IMGFMT"
  92 imgopts+=",backing.file.driver=$IMGPROTO,backing.file.filename=$TEST_IMG.base"
  93
  94 # Cause allocation in the top image
  95 QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
  96     $QEMU_IO --image-opts "$imgopts" -c 'write -P 1 0 64' | _filter_qemu_io
  97
  98 # Verify
  99 QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
 100     $QEMU_IO --image-opts "$imgopts" \
 101     -c 'read -P 1 0 64' \
 102     -c "read -P 42 64 $((64 * 1024 - 64))" \
 103     -c "read -P 0 64k $((size - 64 * 1024))" \
 104     | _filter_qemu_io
 105
 106 # success, all done
 107 echo "*** done"
 108 rm -f $seq.full
 109 status=0