tests/qemu-iotests/206

   1 #!/usr/bin/env python3
   2 #
   3 # Test qcow2 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.script_initialize(supported_fmts=['qcow2'])
  27 iotests.verify_working_luks()
  28
  29 with iotests.FilePath('t.qcow2') as disk_path, \
  30      iotests.FilePath('t.qcow2.base') as backing_path, \
  31      iotests.VM() as vm:
  32
  33     vm.add_object('secret,id=keysec0,data=foo')
  34
  35     #
  36     # Successful image creation (defaults)
  37     #
  38     iotests.log("=== Successful image creation (defaults) ===")
  39     iotests.log("")
  40
  41     size = 128 * 1024 * 1024
  42
  43     vm.launch()
  44     vm.blockdev_create({ 'driver': 'file',
  45                          'filename': disk_path,
  46                          'size': 0 })
  47
  48     vm.qmp_log('blockdev-add',
  49                filters=[iotests.filter_qmp_testfiles],
  50                driver='file', filename=disk_path,
  51                node_name='imgfile')
  52
  53     vm.blockdev_create({ 'driver': imgfmt,
  54                          'file': 'imgfile',
  55                          'size': size })
  56     vm.shutdown()
  57
  58     iotests.img_info_log(disk_path)
  59
  60     #
  61     # Successful image creation (inline blockdev-add, explicit defaults)
  62     #
  63     iotests.log("=== Successful image creation (inline blockdev-add, explicit defaults) ===")
  64     iotests.log("")
  65
  66     # Choose a different size to show that we got a new image
  67     size = 64 * 1024 * 1024
  68
  69     vm.launch()
  70     vm.blockdev_create({ 'driver': 'file',
  71                          'filename': disk_path,
  72                          'size': 0,
  73                          'preallocation': 'off',
  74                          'nocow': False })
  75
  76     vm.blockdev_create({ 'driver': imgfmt,
  77                          'file': {
  78                              'driver': 'file',
  79                              'filename': disk_path,
  80                          },
  81                          'size': size,
  82                          'version': 'v3',
  83                          'cluster-size': 65536,
  84                          'preallocation': 'off',
  85                          'lazy-refcounts': False,
  86                          'refcount-bits': 16 })
  87     vm.shutdown()
  88
  89     iotests.img_info_log(disk_path)
  90
  91     #
  92     # Successful image creation (v3 non-default options)
  93     #
  94     iotests.log("=== Successful image creation (v3 non-default options) ===")
  95     iotests.log("")
  96
  97     # Choose a different size to show that we got a new image
  98     size = 32 * 1024 * 1024
  99
 100     vm.launch()
 101     vm.blockdev_create({ 'driver': 'file',
 102                          'filename': disk_path,
 103                          'size': 0,
 104                          'preallocation': 'falloc',
 105                          'nocow': True })
 106
 107     vm.blockdev_create({ 'driver': imgfmt,
 108                          'file': {
 109                              'driver': 'file',
 110                              'filename': disk_path,
 111                          },
 112                          'size': size,
 113                          'version': 'v3',
 114                          'cluster-size': 2097152,
 115                          'preallocation': 'metadata',
 116                          'lazy-refcounts': True,
 117                          'refcount-bits': 1 })
 118     vm.shutdown()
 119
 120     iotests.img_info_log(disk_path)
 121
 122     #
 123     # Successful image creation (v2 non-default options)
 124     #
 125     iotests.log("=== Successful image creation (v2 non-default options) ===")
 126     iotests.log("")
 127
 128     vm.launch()
 129     vm.blockdev_create({ 'driver': 'file',
 130                          'filename': disk_path,
 131                          'size': 0 })
 132
 133     vm.blockdev_create({ 'driver': imgfmt,
 134                          'file': {
 135                              'driver': 'file',
 136                              'filename': disk_path,
 137                          },
 138                          'size': size,
 139                          'backing-file': backing_path,
 140                          'backing-fmt': 'qcow2',
 141                          'version': 'v2',
 142                          'cluster-size': 512 })
 143     vm.shutdown()
 144
 145     iotests.img_info_log(disk_path)
 146
 147     #
 148     # Successful image creation (encrypted)
 149     #
 150     iotests.log("=== Successful image creation (encrypted) ===")
 151     iotests.log("")
 152
 153     vm.launch()
 154     vm.blockdev_create({ 'driver': imgfmt,
 155                          'file': {
 156                              'driver': 'file',
 157                              'filename': disk_path,
 158                          },
 159                          'size': size,
 160                          'encrypt': {
 161                              'format': 'luks',
 162                              'key-secret': 'keysec0',
 163                              'cipher-alg': 'twofish-128',
 164                              'cipher-mode': 'ctr',
 165                              'ivgen-alg': 'plain64',
 166                              'ivgen-hash-alg': 'md5',
 167                              'hash-alg': 'sha1',
 168                              'iter-time': 10,
 169                          }})
 170     vm.shutdown()
 171
 172     iotests.img_info_log(disk_path)
 173
 174     #
 175     # Invalid BlockdevRef
 176     #
 177     iotests.log("=== Invalid BlockdevRef ===")
 178     iotests.log("")
 179
 180     vm.launch()
 181     vm.blockdev_create({ 'driver': imgfmt,
 182                          'file': "this doesn't exist",
 183                          'size': size })
 184     vm.shutdown()
 185
 186     #
 187     # Invalid sizes
 188     #
 189     iotests.log("=== Invalid sizes ===")
 190
 191     # TODO Negative image sizes aren't handled correctly, but this is a problem
 192     # with QAPI's implementation of the 'size' type and affects other commands
 193     # as well. Once this is fixed, we may want to add a test case here.
 194     #
 195     # 1. Misaligned image size
 196     # 2. 2^64 - 512
 197     # 3. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
 198     # 4. 2^63 - 512 (generally valid, but qcow2 can't handle images this size)
 199
 200     vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
 201
 202     vm.launch()
 203     for size in [ 1234, 18446744073709551104, 9223372036854775808,
 204                   9223372036854775296 ]:
 205         vm.blockdev_create({ 'driver': imgfmt,
 206                              'file': 'node0',
 207                              'size': size })
 208     vm.shutdown()
 209
 210     #
 211     # Invalid version
 212     #
 213     iotests.log("=== Invalid version ===")
 214
 215     vm.launch()
 216     vm.blockdev_create({ 'driver': imgfmt,
 217                          'file': 'node0',
 218                          'size': 67108864,
 219                          'version': 'v1' })
 220     vm.blockdev_create({ 'driver': imgfmt,
 221                          'file': 'node0',
 222                          'size': 67108864,
 223                          'version': 'v2',
 224                          'lazy-refcounts': True })
 225     vm.blockdev_create({ 'driver': imgfmt,
 226                          'file': 'node0',
 227                          'size': 67108864,
 228                          'version': 'v2',
 229                          'refcount-bits': 8 })
 230     vm.shutdown()
 231
 232     #
 233     # Invalid backing file options
 234     #
 235     iotests.log("=== Invalid backing file options ===")
 236
 237     vm.launch()
 238     vm.blockdev_create({ 'driver': imgfmt,
 239                          'file': 'node0',
 240                          'size': 67108864,
 241                          'backing-file': '/dev/null',
 242                          'preallocation': 'full' })
 243     vm.blockdev_create({ 'driver': imgfmt,
 244                          'file': 'node0',
 245                          'size': 67108864,
 246                          'backing-fmt': imgfmt })
 247     vm.shutdown()
 248
 249     #
 250     # Invalid cluster size
 251     #
 252     iotests.log("=== Invalid cluster size ===")
 253
 254     vm.launch()
 255     for csize in [ 1234, 128, 4194304, 0 ]:
 256         vm.blockdev_create({ 'driver': imgfmt,
 257                              'file': 'node0',
 258                              'size': 67108864,
 259                              'cluster-size': csize })
 260     vm.blockdev_create({ 'driver': imgfmt,
 261                          'file': 'node0',
 262                          'size': 281474976710656,
 263                          'cluster-size': 512 })
 264     vm.shutdown()
 265
 266     #
 267     # Invalid refcount width
 268     #
 269     iotests.log("=== Invalid refcount width ===")
 270
 271     vm.launch()
 272     for refcount_bits in [ 128, 0, 7 ]:
 273         vm.blockdev_create({ 'driver': imgfmt,
 274                              'file': 'node0',
 275                              'size': 67108864,
 276                              'refcount-bits': refcount_bits })
 277     vm.shutdown()