blob: 425544c064d247af86925696bf6da34c0666d2b8 [file] [log] [blame]
Andrey Shinkevichbf654b32020-08-06 22:35:47 +03001#!/usr/bin/env python3
Vladimir Sementsov-Ogievskiy9dd003a2021-01-16 16:44:19 +03002# group: rw quick
Andrey Shinkevichbf654b32020-08-06 22:35:47 +03003#
4# Test for dumping of qcow2 image metadata
5#
6# Copyright (c) 2020 Virtuozzo International GmbH
7#
8# This program is free software; you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation; either version 2 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program. If not, see <http://www.gnu.org/licenses/>.
20#
21
22import iotests
23import subprocess
24from iotests import qemu_img_create, qemu_io, file_path, log, filter_qemu_io
25
26iotests.script_initialize(supported_fmts=['qcow2'])
27
28disk = file_path('disk')
29chunk = 1024 * 1024
30
31
32def create_bitmap(bitmap_number, disabled):
33 granularity = 1 << (14 + bitmap_number)
34 bitmap_name = 'bitmap-' + str(bitmap_number)
35 args = ['bitmap', '--add', '-g', f'{granularity}', '-f', iotests.imgfmt,
36 disk, bitmap_name]
37 if disabled:
38 args.append('--disable')
39
40 iotests.qemu_img_pipe(*args)
41
42
43def write_to_disk(offset, size):
44 write = f'write {offset} {size}'
45 log(qemu_io('-c', write, disk), filters=[filter_qemu_io])
46
47
48def add_bitmap(num, begin, end, disabled):
49 log(f'Add bitmap {num}')
50 create_bitmap(num, disabled)
51 for i in range(begin, end):
52 write_to_disk((i) * chunk, chunk)
53 log('')
54
55
56qemu_img_create('-f', iotests.imgfmt, disk, '10M')
57
58add_bitmap(1, 0, 6, False)
59add_bitmap(2, 6, 8, True)
Vladimir Sementsov-Ogievskiyfb07b5c2021-01-16 16:44:15 +030060dump = ['./qcow2.py', disk, 'dump-header']
Andrey Shinkevichbf654b32020-08-06 22:35:47 +030061subprocess.run(dump)
Andrey Shinkevich76bbbb22020-08-06 22:35:57 +030062# Dump the metadata in JSON format
63dump.append('-j')
64subprocess.run(dump)