xref: /qemu/tests/qemu-iotests/031 (revision 727385c4)
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
46_unsupported_imgopts data_file 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
47
48CLUSTER_SIZE=65536
49
50# qcow2.py output depends on the exact options used, so override the command
51# line here as an exception
52for compat in "compat=0.10" "compat=1.1"; do
53
54    echo
55    echo ===== Testing with -o $compat =====
56    echo
57    echo === Create image with unknown header extension ===
58    echo
59    _make_test_img -o $compat 64M
60    $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension"
61    $PYTHON qcow2.py "$TEST_IMG" dump-header
62    _check_test_img
63
64    echo
65    echo === Rewrite header with no backing file ===
66    echo
67    $QEMU_IMG rebase -u -b "" "$TEST_IMG"
68    $PYTHON qcow2.py "$TEST_IMG" dump-header
69    _check_test_img
70
71    echo
72    echo === Add a backing file and format ===
73    echo
74    $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG"
75    $PYTHON qcow2.py "$TEST_IMG" dump-header
76done
77
78# success, all done
79echo "*** done"
80rm -f $seq.full
81status=0
82