tests/qemu-iotests/211

   1 #!/usr/bin/env python
   2 #
   3 # Test VDI and file image creation
   4 #
   5 # Copyright (C) 2018 Red Hat, Inc.
   6 #
   7 # Creator/Owner: Kevin Wolf <kwolf@redhat.com>
   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 import iotests
  24 from iotests import imgfmt
  25
  26 iotests.verify_image_format(supported_fmts=['vdi'])
  27 iotests.verify_protocol(supported=['file'])
  28
  29 def blockdev_create(vm, options):
  30     error = vm.blockdev_create(options)
  31     if error and 'Could not allocate bmap' in error:
  32         iotests.notrun('Insufficient memory')
  33
  34 with iotests.FilePath('t.vdi') as disk_path, \
  35      iotests.VM() as vm:
  36
  37     #
  38     # Successful image creation (defaults)
  39     #
  40     iotests.log("=== Successful image creation (defaults) ===")
  41     iotests.log("")
  42
  43     size = 128 * 1024 * 1024
  44
  45     vm.launch()
  46     blockdev_create(vm, { 'driver': 'file',
  47                           'filename': disk_path,
  48                           'size': 0 })
  49
  50     vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
  51                node_name='imgfile', filters=[iotests.filter_qmp_testfiles])
  52
  53     blockdev_create(vm, { 'driver': imgfmt,
  54                           'file': 'imgfile',
  55                           'size': size })
  56     vm.shutdown()
  57
  58     iotests.img_info_log(disk_path)
  59     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  60
  61     #
  62     # Successful image creation (explicit defaults)
  63     #
  64     iotests.log("=== Successful image creation (explicit defaults) ===")
  65     iotests.log("")
  66
  67     size = 64 * 1024 * 1024
  68
  69     vm.launch()
  70     blockdev_create(vm, { 'driver': 'file',
  71                           'filename': disk_path,
  72                           'size': 0 })
  73     blockdev_create(vm, { 'driver': imgfmt,
  74                           'file': {
  75                               'driver': 'file',
  76                               'filename': disk_path,
  77                           },
  78                           'size': size,
  79                           'preallocation': 'off' })
  80     vm.shutdown()
  81
  82     iotests.img_info_log(disk_path)
  83     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  84
  85     #
  86     # Successful image creation (with non-default options)
  87     #
  88     iotests.log("=== Successful image creation (with non-default options) ===")
  89     iotests.log("")
  90
  91     size = 32 * 1024 * 1024
  92
  93     vm.launch()
  94     blockdev_create(vm, { 'driver': 'file',
  95                           'filename': disk_path,
  96                           'size': 0 })
  97     blockdev_create(vm, { 'driver': imgfmt,
  98                           'file': {
  99                               'driver': 'file',
 100                               'filename': disk_path,
 101                           },
 102                           'size': size,
 103                           'preallocation': 'metadata' })
 104     vm.shutdown()
 105
 106     iotests.img_info_log(disk_path)
 107     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
 108
 109     #
 110     # Invalid BlockdevRef
 111     #
 112     iotests.log("=== Invalid BlockdevRef ===")
 113     iotests.log("")
 114
 115     vm.launch()
 116     blockdev_create(vm, { 'driver': imgfmt,
 117                           'file': "this doesn't exist",
 118                           'size': size })
 119     vm.shutdown()
 120
 121     #
 122     # Zero size
 123     #
 124     iotests.log("=== Zero size ===")
 125     iotests.log("")
 126
 127     vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
 128     vm.launch()
 129     blockdev_create(vm, { 'driver': imgfmt,
 130                           'file': 'node0',
 131                           'size': 0 })
 132     vm.shutdown()
 133
 134     iotests.img_info_log(disk_path)
 135
 136     #
 137     # Maximum size
 138     #
 139     iotests.log("=== Maximum size ===")
 140     iotests.log("")
 141
 142     vm.launch()
 143     blockdev_create(vm, { 'driver': imgfmt,
 144                           'file': 'node0',
 145                           'size': 562949819203584 })
 146     vm.shutdown()
 147
 148     iotests.img_info_log(disk_path)
 149
 150     #
 151     # Invalid sizes
 152     #
 153
 154     # TODO Negative image sizes aren't handled correctly, but this is a problem
 155     # with QAPI's implementation of the 'size' type and affects other commands
 156     # as well. Once this is fixed, we may want to add a test case here.
 157
 158     # 1. 2^64 - 512
 159     # 2. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
 160     # 3. 0x1fffff8000001 (one byte more than maximum image size for VDI)
 161
 162     iotests.log("=== Invalid sizes ===")
 163     iotests.log("")
 164
 165     vm.launch()
 166     for size in [ 18446744073709551104, 9223372036854775808, 562949819203585 ]:
 167         blockdev_create(vm, { 'driver': imgfmt,
 168                               'file': 'node0',
 169                               'size': size })
 170     vm.shutdown()