#!/usr/bin/env python3 # # Test qcow2 and file image creation # # Copyright (C) 2018 Red Hat, Inc. # # Creator/Owner: Kevin Wolf # # 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 . # import iotests from iotests import imgfmt iotests.verify_image_format(supported_fmts=['qcow2']) with iotests.FilePath('t.qcow2') as disk_path, \ iotests.FilePath('t.qcow2.base') as backing_path, \ iotests.VM() as vm: vm.add_object('secret,id=keysec0,data=foo') # # Successful image creation (defaults) # iotests.log("=== Successful image creation (defaults) ===") iotests.log("") size = 128 * 1024 * 1024 vm.launch() vm.blockdev_create({ 'driver': 'file', 'filename': disk_path, 'size': 0 }) vm.qmp_log('blockdev-add', filters=[iotests.filter_qmp_testfiles], driver='file', filename=disk_path, node_name='imgfile') vm.blockdev_create({ 'driver': imgfmt, 'file': 'imgfile', 'size': size }) vm.shutdown() iotests.img_info_log(disk_path) # # Successful image creation (inline blockdev-add, explicit defaults) # iotests.log("=== Successful image creation (inline blockdev-add, explicit defaults) ===") iotests.log("") # Choose a different size to show that we got a new image size = 64 * 1024 * 1024 vm.launch() vm.blockdev_create({ 'driver': 'file', 'filename': disk_path, 'size': 0, 'preallocation': 'off', 'nocow': False }) vm.blockdev_create({ 'driver': imgfmt, 'file': { 'driver': 'file', 'filename': disk_path, }, 'size': size, 'version': 'v3', 'cluster-size': 65536, 'preallocation': 'off', 'lazy-refcounts': False, 'refcount-bits': 16 }) vm.shutdown() iotests.img_info_log(disk_path) # # Successful image creation (v3 non-default options) # iotests.log("=== Successful image creation (v3 non-default options) ===") iotests.log("") # Choose a different size to show that we got a new image size = 32 * 1024 * 1024 vm.launch() vm.blockdev_create({ 'driver': 'file', 'filename': disk_path, 'size': 0, 'preallocation': 'falloc', 'nocow': True }) vm.blockdev_create({ 'driver': imgfmt, 'file': { 'driver': 'file', 'filename': disk_path, }, 'size': size, 'version': 'v3', 'cluster-size': 2097152, 'preallocation': 'metadata', 'lazy-refcounts': True, 'refcount-bits': 1 }) vm.shutdown() iotests.img_info_log(disk_path) # # Successful image creation (v2 non-default options) # iotests.log("=== Successful image creation (v2 non-default options) ===") iotests.log("") vm.launch() vm.blockdev_create({ 'driver': 'file', 'filename': disk_path, 'size': 0 }) vm.blockdev_create({ 'driver': imgfmt, 'file': { 'driver': 'file', 'filename': disk_path, }, 'size': size, 'backing-file': backing_path, 'backing-fmt': 'qcow2', 'version': 'v2', 'cluster-size': 512 }) vm.shutdown() iotests.img_info_log(disk_path) # # Successful image creation (encrypted) # iotests.log("=== Successful image creation (encrypted) ===") iotests.log("") vm.launch() vm.blockdev_create({ 'driver': imgfmt, 'file': { 'driver': 'file', 'filename': disk_path, }, 'size': size, 'encrypt': { 'format': 'luks', 'key-secret': 'keysec0', 'cipher-alg': 'twofish-128', 'cipher-mode': 'ctr', 'ivgen-alg': 'plain64', 'ivgen-hash-alg': 'md5', 'hash-alg': 'sha1', 'iter-time': 10, }}) vm.shutdown() iotests.img_info_log(disk_path) # # Invalid BlockdevRef # iotests.log("=== Invalid BlockdevRef ===") iotests.log("") vm.launch() vm.blockdev_create({ 'driver': imgfmt, 'file': "this doesn't exist", 'size': size }) vm.shutdown() # # Invalid sizes # iotests.log("=== 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. Misaligned image size # 2. 2^64 - 512 # 3. 2^63 = 8 EB (qemu-img enforces image sizes less than this) # 4. 2^63 - 512 (generally valid, but qcow2 can't handle images this size) vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path)) vm.launch() for size in [ 1234, 18446744073709551104, 9223372036854775808, 9223372036854775296 ]: vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': size }) vm.shutdown() # # Invalid version # iotests.log("=== Invalid version ===") vm.launch() vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'version': 'v1' }) vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'version': 'v2', 'lazy-refcounts': True }) vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'version': 'v2', 'refcount-bits': 8 }) vm.shutdown() # # Invalid backing file options # iotests.log("=== Invalid backing file options ===") vm.launch() vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'backing-file': '/dev/null', 'preallocation': 'full' }) vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'backing-fmt': imgfmt }) vm.shutdown() # # Invalid cluster size # iotests.log("=== Invalid cluster size ===") vm.launch() for csize in [ 1234, 128, 4194304, 0 ]: vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'cluster-size': csize }) vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 281474976710656, 'cluster-size': 512 }) vm.shutdown() # # Invalid refcount width # iotests.log("=== Invalid refcount width ===") vm.launch() for refcount_bits in [ 128, 0, 7 ]: vm.blockdev_create({ 'driver': imgfmt, 'file': 'node0', 'size': 67108864, 'refcount-bits': refcount_bits }) vm.shutdown()