tests/qemu-iotests/206

   1 #!/usr/bin/env python
   2 #
   3 # Test qcow2 and file image creation
   4 #
   5 # Copyright (C) 2018 Red Hat, Inc.
   6 #
   7 # Creator/Owner: Kevin Wolf <[email protected]>
   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=['qcow2'])
  27
  28 def blockdev_create(vm, options):
  29     result = vm.qmp_log('blockdev-create', job_id='job0', options=options)
  30
  31     if 'return' in result:
  32         assert result['return'] == {}
  33         vm.run_job('job0')
  34     iotests.log("")
  35
  36 with iotests.FilePath('t.qcow2') as disk_path, \
  37      iotests.FilePath('t.qcow2.base') as backing_path, \
  38      iotests.VM() as vm:
  39
  40     vm.add_object('secret,id=keysec0,data=foo')
  41
  42     #
  43     # Successful image creation (defaults)
  44     #
  45     iotests.log("=== Successful image creation (defaults) ===")
  46     iotests.log("")
  47
  48     size = 128 * 1024 * 1024
  49
  50     vm.launch()
  51     blockdev_create(vm, { 'driver': 'file',
  52                           'filename': disk_path,
  53                           'size': 0 })
  54
  55     vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
  56                node_name='imgfile')
  57
  58     blockdev_create(vm, { 'driver': imgfmt,
  59                           'file': 'imgfile',
  60                           'size': size })
  61     vm.shutdown()
  62
  63     iotests.img_info_log(disk_path)
  64
  65     #
  66     # Successful image creation (inline blockdev-add, explicit defaults)
  67     #
  68     iotests.log("=== Successful image creation (inline blockdev-add, explicit defaults) ===")
  69     iotests.log("")
  70
  71     # Choose a different size to show that we got a new image
  72     size = 64 * 1024 * 1024
  73
  74     vm.launch()
  75     blockdev_create(vm, { 'driver': 'file',
  76                           'filename': disk_path,
  77                           'size': 0,
  78                           'preallocation': 'off',
  79                           'nocow': False })
  80
  81     blockdev_create(vm, { 'driver': imgfmt,
  82                           'file': {
  83                               'driver': 'file',
  84                               'filename': disk_path,
  85                           },
  86                           'size': size,
  87                           'version': 'v3',
  88                           'cluster-size': 65536,
  89                           'preallocation': 'off',
  90                           'lazy-refcounts': False,
  91                           'refcount-bits': 16 })
  92     vm.shutdown()
  93
  94     iotests.img_info_log(disk_path)
  95
  96     #
  97     # Successful image creation (v3 non-default options)
  98     #
  99     iotests.log("=== Successful image creation (v3 non-default options) ===")
 100     iotests.log("")
 101
 102     # Choose a different size to show that we got a new image
 103     size = 32 * 1024 * 1024
 104
 105     vm.launch()
 106     blockdev_create(vm, { 'driver': 'file',
 107                           'filename': disk_path,
 108                           'size': 0,
 109                           'preallocation': 'falloc',
 110                           'nocow': True })
 111
 112     blockdev_create(vm, { 'driver': imgfmt,
 113                           'file': {
 114                               'driver': 'file',
 115                               'filename': disk_path,
 116                           },
 117                           'size': size,
 118                           'version': 'v3',
 119                           'cluster-size': 2097152,
 120                           'preallocation': 'metadata',
 121                           'lazy-refcounts': True,
 122                           'refcount-bits': 1 })
 123     vm.shutdown()
 124
 125     iotests.img_info_log(disk_path)
 126
 127     #
 128     # Successful image creation (v2 non-default options)
 129     #
 130     iotests.log("=== Successful image creation (v2 non-default options) ===")
 131     iotests.log("")
 132
 133     vm.launch()
 134     blockdev_create(vm, { 'driver': 'file',
 135                           'filename': disk_path,
 136                           'size': 0 })
 137
 138     blockdev_create(vm, { 'driver': imgfmt,
 139                           'file': {
 140                               'driver': 'file',
 141                               'filename': disk_path,
 142                           },
 143                           'size': size,
 144                           'backing-file': backing_path,
 145                           'backing-fmt': 'qcow2',
 146                           'version': 'v2',
 147                           'cluster-size': 512 })
 148     vm.shutdown()
 149
 150     iotests.img_info_log(disk_path)
 151
 152     #
 153     # Successful image creation (encrypted)
 154     #
 155     iotests.log("=== Successful image creation (encrypted) ===")
 156     iotests.log("")
 157
 158     vm.launch()
 159     blockdev_create(vm, { 'driver': imgfmt,
 160                           'file': {
 161                               'driver': 'file',
 162                               'filename': disk_path,
 163                           },
 164                           'size': size,
 165                           'encrypt': {
 166                               'format': 'luks',
 167                               'key-secret': 'keysec0',
 168                               'cipher-alg': 'twofish-128',
 169                               'cipher-mode': 'ctr',
 170                               'ivgen-alg': 'plain64',
 171                               'ivgen-hash-alg': 'md5',
 172                               'hash-alg': 'sha1',
 173                               'iter-time': 10,
 174                           }})
 175     vm.shutdown()
 176
 177     iotests.img_info_log(disk_path)
 178
 179     #
 180     # Invalid BlockdevRef
 181     #
 182     iotests.log("=== Invalid BlockdevRef ===")
 183     iotests.log("")
 184
 185     vm.launch()
 186     blockdev_create(vm, { 'driver': imgfmt,
 187                           'file': "this doesn't exist",
 188                           'size': size })
 189     vm.shutdown()
 190
 191     #
 192     # Invalid sizes
 193     #
 194     iotests.log("=== Invalid sizes ===")
 195
 196     # TODO Negative image sizes aren't handled correctly, but this is a problem
 197     # with QAPI's implementation of the 'size' type and affects other commands
 198     # as well. Once this is fixed, we may want to add a test case here.
 199     #
 200     # 1. Misaligned image size
 201     # 2. 2^64 - 512
 202     # 3. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
 203     # 4. 2^63 - 512 (generally valid, but qcow2 can't handle images this size)
 204
 205     vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
 206
 207     vm.launch()
 208     for size in [ 1234, 18446744073709551104, 9223372036854775808,
 209                   9223372036854775296 ]:
 210         blockdev_create(vm, { 'driver': imgfmt,
 211                               'file': 'node0',
 212                               'size': size })
 213     vm.shutdown()
 214
 215     #
 216     # Invalid version
 217     #
 218     iotests.log("=== Invalid version ===")
 219
 220     vm.launch()
 221     blockdev_create(vm, { 'driver': imgfmt,
 222                           'file': 'node0',
 223                           'size': 67108864,
 224                           'version': 'v1' })
 225     blockdev_create(vm, { 'driver': imgfmt,
 226                           'file': 'node0',
 227                           'size': 67108864,
 228                           'version': 'v2',
 229                           'lazy-refcounts': True })
 230     blockdev_create(vm, { 'driver': imgfmt,
 231                           'file': 'node0',
 232                           'size': 67108864,
 233                           'version': 'v2',
 234                           'refcount-bits': 8 })
 235     vm.shutdown()
 236
 237     #
 238     # Invalid backing file options
 239     #
 240     iotests.log("=== Invalid backing file options ===")
 241
 242     vm.launch()
 243     blockdev_create(vm, { 'driver': imgfmt,
 244                           'file': 'node0',
 245                           'size': 67108864,
 246                           'backing-file': '/dev/null',
 247                           'preallocation': 'full' })
 248     blockdev_create(vm, { 'driver': imgfmt,
 249                           'file': 'node0',
 250                           'size': 67108864,
 251                           'backing-fmt': imgfmt })
 252     vm.shutdown()
 253
 254     #
 255     # Invalid cluster size
 256     #
 257     iotests.log("=== Invalid cluster size ===")
 258
 259     vm.launch()
 260     for csize in [ 1234, 128, 4194304, 0 ]:
 261         blockdev_create(vm, { 'driver': imgfmt,
 262                               'file': 'node0',
 263                               'size': 67108864,
 264                               'cluster-size': csize })
 265     blockdev_create(vm, { 'driver': imgfmt,
 266                           'file': 'node0',
 267                           'size': 281474976710656,
 268                           'cluster-size': 512 })
 269     vm.shutdown()
 270
 271     #
 272     # Invalid refcount width
 273     #
 274     iotests.log("=== Invalid refcount width ===")
 275
 276     vm.launch()
 277     for refcount_bits in [ 128, 0, 7 ]:
 278         blockdev_create(vm, { 'driver': imgfmt,
 279                               'file': 'node0',
 280                               'size': 67108864,
 281                               'refcount-bits': refcount_bits })
 282     vm.shutdown()