xref: /qemu/tests/qemu-iotests/031 (revision b2a3cbb8)
1#!/usr/bin/env bash
2# group: rw auto quick
3#
4# Test that all qcow2 header extensions survive a header rewrite
5#
6# Copyright (C) 2011 Red Hat, Inc.
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
22# creator
23owner=kwolf@redhat.com
24
25seq=`basename $0`
26echo "QA output created by $seq"
27
28status=1	# failure is the default!
29
30_cleanup()
31{
32	_cleanup_test_img
33}
34trap "_cleanup; exit \$status" 0 1 2 3 15
35
36# get standard environment, filters and checks
37. ./common.rc
38. ./common.filter
39. ./common.pattern
40
41# This tests qcow2-specific low-level functionality
42_supported_fmt qcow2
43_supported_proto file fuse
44# We want to test compat=0.10, which does not support external data
45# files or refcount widths other than 16 or compression type
46_unsupported_imgopts data_file compression_type \
47    'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
48
49CLUSTER_SIZE=65536
50
51# qcow2.py output depends on the exact options used, so override the command
52# line here as an exception
53for compat in "compat=0.10" "compat=1.1"; do
54
55    echo
56    echo ===== Testing with -o $compat =====
57    echo
58    echo === Create image with unknown header extension ===
59    echo
60    _make_test_img -o $compat 64M
61    $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension"
62    _qcow2_dump_header
63    _check_test_img
64
65    echo
66    echo === Rewrite header with no backing file ===
67    echo
68    $QEMU_IMG rebase -u -b "" "$TEST_IMG"
69    _qcow2_dump_header
70    _check_test_img
71
72    echo
73    echo === Add a backing file and format ===
74    echo
75    $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG"
76    _qcow2_dump_header
77done
78
79# success, all done
80echo "*** done"
81rm -f $seq.full
82status=0
83