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#!/usr/bin/env python
#
# Test VDI and file image creation
#
# Copyright (C) 2018 Red Hat, Inc.
#
# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import iotests
from iotests import imgfmt
iotests.verify_image_format(supported_fmts=['vdi'])
iotests.verify_protocol(supported=['file'])
def blockdev_create(vm, options):
result = vm.qmp_log('blockdev-create', job_id='job0', options=options,
filters=[iotests.filter_qmp_testfiles])
if 'return' in result:
assert result['return'] == {}
error = vm.run_job('job0')
if error and 'Could not allocate bmap' in error:
iotests.notrun('Insufficient memory')
iotests.log("")
with iotests.FilePath('t.vdi') as disk_path, \
iotests.VM() as vm:
#
# Successful image creation (defaults)
#
iotests.log("=== Successful image creation (defaults) ===")
iotests.log("")
size = 128 * 1024 * 1024
vm.launch()
blockdev_create(vm, { 'driver': 'file',
'filename': disk_path,
'size': 0 })
vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
node_name='imgfile', filters=[iotests.filter_qmp_testfiles])
blockdev_create(vm, { 'driver': imgfmt,
'file': 'imgfile',
'size': size })
vm.shutdown()
iotests.img_info_log(disk_path)
iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
#
# Successful image creation (explicit defaults)
#
iotests.log("=== Successful image creation (explicit defaults) ===")
iotests.log("")
size = 64 * 1024 * 1024
vm.launch()
blockdev_create(vm, { 'driver': 'file',
'filename': disk_path,
'size': 0 })
blockdev_create(vm, { 'driver': imgfmt,
'file': {
'driver': 'file',
'filename': disk_path,
},
'size': size,
'preallocation': 'off' })
vm.shutdown()
iotests.img_info_log(disk_path)
iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
#
# Successful image creation (with non-default options)
#
iotests.log("=== Successful image creation (with non-default options) ===")
iotests.log("")
size = 32 * 1024 * 1024
vm.launch()
blockdev_create(vm, { 'driver': 'file',
'filename': disk_path,
'size': 0 })
blockdev_create(vm, { 'driver': imgfmt,
'file': {
'driver': 'file',
'filename': disk_path,
},
'size': size,
'preallocation': 'metadata' })
vm.shutdown()
iotests.img_info_log(disk_path)
iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
#
# Invalid BlockdevRef
#
iotests.log("=== Invalid BlockdevRef ===")
iotests.log("")
vm.launch()
blockdev_create(vm, { 'driver': imgfmt,
'file': "this doesn't exist",
'size': size })
vm.shutdown()
#
# Zero size
#
iotests.log("=== Zero size ===")
iotests.log("")
vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
vm.launch()
blockdev_create(vm, { 'driver': imgfmt,
'file': 'node0',
'size': 0 })
vm.shutdown()
iotests.img_info_log(disk_path)
#
# Maximum size
#
iotests.log("=== Maximum size ===")
iotests.log("")
vm.launch()
blockdev_create(vm, { 'driver': imgfmt,
'file': 'node0',
'size': 562949819203584 })
vm.shutdown()
iotests.img_info_log(disk_path)
#
# Invalid sizes
#
# TODO Negative image sizes aren't handled correctly, but this is a problem
# with QAPI's implementation of the 'size' type and affects other commands
# as well. Once this is fixed, we may want to add a test case here.
# 1. 2^64 - 512
# 2. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
# 3. 0x1fffff8000001 (one byte more than maximum image size for VDI)
iotests.log("=== Invalid sizes ===")
iotests.log("")
vm.launch()
for size in [ 18446744073709551104, 9223372036854775808, 562949819203585 ]:
blockdev_create(vm, { 'driver': imgfmt,
'file': 'node0',
'size': size })
vm.shutdown()
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