tests/qemu-iotests/225

   1 #!/bin/bash
   2 #
   3 # Test vmdk backing file correlation
   4 #
   5 # Copyright (C) 2018 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=mreitz@redhat.com
  23
  24 seq=$(basename $0)
  25 echo "QA output created by $seq"
  26
  27 here=$PWD
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     rm -f "$TEST_IMG.not_base"
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40 . ./common.qemu
  41
  42 # This tests vmdk-specific low-level functionality
  43 _supported_fmt vmdk
  44 _supported_proto file
  45 _supported_os Linux
  46 _unsupported_imgopts "subformat=monolithicFlat" \
  47                      "subformat=twoGbMaxExtentFlat" \
  48                      "subformat=twoGbMaxExtentSparse"
  49
  50 TEST_IMG="$TEST_IMG.base" _make_test_img 1M
  51 TEST_IMG="$TEST_IMG.not_base" _make_test_img 1M
  52 _make_test_img -b "$TEST_IMG.base"
  53
  54 make_opts()
  55 {
  56     node_name=$1
  57     filename=$2
  58     backing=$3
  59
  60     if [ -z "$backing" ]; then
  61         backing="null"
  62     else
  63         backing="'$backing'"
  64     fi
  65
  66     echo "{ 'node-name': '$node_name',
  67             'driver': 'vmdk',
  68             'file': {
  69                 'driver': 'file',
  70                 'filename': '$filename'
  71             },
  72             'backing': $backing }"
  73 }
  74
  75 overlay_opts=$(make_opts overlay "$TEST_IMG" backing)
  76 base_opts=$(make_opts backing "$TEST_IMG.base")
  77 not_base_opts=$(make_opts backing "$TEST_IMG.not_base")
  78
  79 not_vmdk_opts="{ 'node-name': 'backing', 'driver': 'null-co' }"
  80
  81 echo
  82 echo '=== Testing fitting VMDK backing image ==='
  83 echo
  84
  85 qemu_comm_method=monitor \
  86     _launch_qemu -blockdev "$base_opts" -blockdev "$overlay_opts"
  87
  88 # Should not return an error
  89 _send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'ops'
  90
  91 _cleanup_qemu
  92
  93
  94 echo
  95 echo '=== Testing unrelated VMDK backing image ==='
  96 echo
  97
  98 qemu_comm_method=monitor \
  99     _launch_qemu -blockdev "$not_base_opts" -blockdev "$overlay_opts"
 100
 101 # Should fail (gracefully)
 102 _send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed'
 103
 104 _cleanup_qemu
 105
 106
 107 echo
 108 echo '=== Testing non-VMDK backing image ==='
 109 echo
 110
 111 # FIXME: This is the reason why we have to use two -blockdev
 112 # invocations.  You can only fully override the backing file options
 113 # if you either specify a node reference (as done here) or the new
 114 # options contain file.filename (which in this case they do not).
 115 # In other cases, file.filename will be set to whatever the image
 116 # header of the overlay contains (which we do not want).  I consider
 117 # this a FIXME because with -blockdev, you cannot specify "partial"
 118 # options, so setting file.filename but leaving the rest as specified
 119 # by the user does not make sense.
 120 qemu_comm_method=monitor \
 121     _launch_qemu -blockdev "$not_vmdk_opts" -blockdev "$overlay_opts"
 122
 123 # Should fail (gracefully)
 124 _send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed'
 125
 126 _cleanup_qemu
 127
 128
 129 # success, all done
 130 echo "*** done"
 131 rm -f $seq.full
 132 status=0