1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#!/usr/bin/env bash
#
# Test qemu-img convert --salvage
#
# Copyright (C) 2019 Red Hat, Inc.
#
# 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/>.
#
# creator
owner=mreitz@redhat.com
seq=$(basename $0)
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.qemu
_supported_fmt generic
_supported_proto file
_supported_os Linux
_unsupported_imgopts "subformat=streamOptimized"
if [ "$IMGOPTSSYNTAX" = "true" ]; then
# We use json:{} filenames here, so we cannot work with additional options.
_unsupported_fmt $IMGFMT
else
# With VDI, the output is ordered differently. Just disable it.
_unsupported_fmt vdi
fi
TEST_IMG="$TEST_IMG.orig" _make_test_img 64M
$QEMU_IO -c 'write -P 42 0 64M' "$TEST_IMG.orig" | _filter_qemu_io
sector_size=512
# Offsets on which to fail block-status. Keep in ascending order so
# the indexing done by _filter_offsets will appear in ascending order
# in the output as well.
status_fail_offsets="$((16 * 1024 * 1024 + 8192))
$((33 * 1024 * 1024 + 512))"
# Offsets on which to fail reads. Keep in ascending order for the
# same reason.
# The second element is shared with $status_fail_offsets on purpose.
# Starting with the third element, we test what happens when a
# continuous range of sectors is inaccessible.
read_fail_offsets="$((32 * 1024 * 1024 - 65536))
$((33 * 1024 * 1024 + 512))
$(seq $((34 * 1024 * 1024)) $sector_size \
$((34 * 1024 * 1024 + 4096 - $sector_size)))"
# blkdebug must be above the format layer so it can intercept all
# block-status events
source_img="json:{'driver': 'blkdebug',
'image': {
'driver': '$IMGFMT',
'file': {
'driver': 'file',
'filename': '$TEST_IMG.orig'
}
},
'inject-error': ["
for ofs in $status_fail_offsets
do
source_img+="{ 'event': 'none',
'iotype': 'block-status',
'errno': 5,
'sector': $((ofs / sector_size)) },"
done
for ofs in $read_fail_offsets
do
source_img+="{ 'event': 'none',
'iotype': 'read',
'errno': 5,
'sector': $((ofs / sector_size)) },"
done
# Remove the trailing comma and terminate @inject-error and json:{}
source_img="${source_img%,} ] }"
echo
_filter_offsets() {
filters=
index=0
for ofs in $1
do
filters+=" -e s/$ofs/status_fail_offset_$index/"
index=$((index + 1))
done
index=0
for ofs in $2
do
filters+=" -e s/$ofs/read_fail_offset_$index/"
index=$((index + 1))
done
sed $filters
}
# While determining the number of allocated sectors in the input
# image, we should see one block status warning per element of
# $status_fail_offsets.
#
# Then, the image is read. Since the block status is queried in
# basically the same way, the same warnings as in the previous step
# should reappear. Interleaved with those we should see a read
# warning per element of $read_fail_offsets.
# Note that $read_fail_offsets and $status_fail_offsets share an
# element (read_fail_offset_1 == status_fail_offset_1), so
# "status_fail_offset_1" in the output is the same as
# "read_fail_offset_1".
$QEMU_IMG convert --salvage "$source_img" "$TEST_IMG" 2>&1 \
| _filter_offsets "$status_fail_offsets" "$read_fail_offsets"
echo
# The offsets where the block status could not be determined should
# have been treated as containing data and thus should be correct in
# the output image.
# The offsets where reading failed altogether should be 0. Make them
# 0 in the input image, too, so we can compare both images.
for ofs in $read_fail_offsets
do
$QEMU_IO -c "write -z $ofs $sector_size" "$TEST_IMG.orig" \
| _filter_qemu_io \
| _filter_offsets '' "$read_fail_offsets"
done
echo
# These should be equal now.
$QEMU_IMG compare "$TEST_IMG.orig" "$TEST_IMG"
# success, all done
echo "*** done"
rm -f $seq.full
status=0
|
