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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
#!/usr/bin/env bash
#
# Test image locking
#
# Copyright 2016, 2017 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=famz@redhat.com
seq="$(basename $0)"
echo "QA output created by $seq"
tmp=/tmp/$$
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
rm -f "${TEST_IMG}.base"
rm -f "${TEST_IMG}.overlay"
rm -f "${TEST_IMG}.convert"
rm -f "${TEST_IMG}.a"
rm -f "${TEST_IMG}.b"
rm -f "${TEST_IMG}.c"
rm -f "${TEST_IMG}.lnk"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.qemu
size=32M
_check_ofd()
{
_make_test_img $size >/dev/null
if $QEMU_IMG_PROG info --image-opts "driver=file,locking=on,filename=$TEST_IMG" 2>&1 |
grep -q 'falling back to POSIX file'; then
return 1
else
return 0
fi
}
_check_ofd || _notrun "OFD lock not available"
_supported_fmt qcow2
_supported_proto file
_supported_os Linux
_run_cmd()
{
echo
(echo "$@"; "$@" 2>&1 1>/dev/null) | _filter_testdir
}
_do_run_qemu()
{
(
if ! test -t 0; then
while read cmd; do
echo $cmd
done
fi
echo quit
) | $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
}
_run_qemu_with_images()
{
_do_run_qemu \
$(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
| _filter_testdir | _filter_qemu
}
echo "== readonly=off,force-share=on should be rejected =="
_run_qemu_with_images null-co://,readonly=off,force-share=on
for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do
echo
echo "== Creating base image =="
TEST_IMG="${TEST_IMG}.base" _make_test_img $size
echo
echo "== Creating test image =="
$QEMU_IMG create -f $IMGFMT "${TEST_IMG}" -b ${TEST_IMG}.base | _filter_img_create
echo
echo "== Launching QEMU, opts: '$opts1' =="
_launch_qemu -drive file="${TEST_IMG}",if=none,$opts1
h=$QEMU_HANDLE
for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do
echo
echo "== Launching another QEMU, opts: '$opts2' =="
echo "quit" | \
$QEMU -nographic -monitor stdio \
-drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null | \
_filter_testdir | _filter_qemu
done
for L in "" "-U"; do
echo
echo "== Running utility commands $L =="
_run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}"
_run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}"
_run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512"
_run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512"
_run_cmd $QEMU_IMG info $L "${TEST_IMG}"
_run_cmd $QEMU_IMG check $L "${TEST_IMG}"
_run_cmd $QEMU_IMG compare $L "${TEST_IMG}" "${TEST_IMG}"
_run_cmd $QEMU_IMG map $L "${TEST_IMG}"
_run_cmd $QEMU_IMG amend -o "" $L "${TEST_IMG}"
_run_cmd $QEMU_IMG commit $L "${TEST_IMG}"
_run_cmd $QEMU_IMG resize $L "${TEST_IMG}" $size
_run_cmd $QEMU_IMG rebase $L "${TEST_IMG}" -b "${TEST_IMG}.base"
_run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}"
_run_cmd $QEMU_IMG convert $L "${TEST_IMG}" "${TEST_IMG}.convert"
_run_cmd $QEMU_IMG dd $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1
_run_cmd $QEMU_IMG bench $L -c 1 "${TEST_IMG}"
_run_cmd $QEMU_IMG bench $L -w -c 1 "${TEST_IMG}"
# qemu-img create does not support -U
if [ -z "$L" ]; then
_run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \
-b ${TEST_IMG}.base
# Read the file format. It used to be the case that
# file-posix simply truncated the file, but the qcow2
# driver then failed to format it because it was unable
# to acquire the necessary WRITE permission. However, the
# truncation was already wrong, and the whole process
# resulted in the file being completely empty and thus its
# format would be detected to be raw.
# So we read it here to see that creation either completed
# successfully (thus the format is qcow2) or it aborted
# before the file was changed at all (thus the format stays
# qcow2).
_img_info -U | grep 'file format'
fi
done
_send_qemu_cmd $h "{ 'execute': 'quit', }" ""
echo
echo "Round done"
_cleanup_qemu
done
test_opts="read-only=off read-only=on read-only=on,force-share=on"
for opt1 in $test_opts; do
for opt2 in $test_opts; do
echo
echo "== Two devices with the same image ($opt1 - $opt2) =="
_run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2"
done
done
echo
echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir
(
$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}"
$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}"
$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b"
) | _filter_img_create
echo
echo "== Two devices sharing the same file in backing chain =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b"
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c"
echo
echo "== Backing image also as an active device =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}"
echo
echo "== Backing image also as an active device (ro) =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on"
echo
echo "== Symbolic link =="
rm -f "${TEST_IMG}.lnk" &>/dev/null
ln -s ${TEST_IMG} "${TEST_IMG}.lnk" || echo "Failed to create link"
_run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"
echo
echo "== Active commit to intermediate layer should work when base in use =="
_launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \
-device virtio-blk,drive=drive0
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'qmp_capabilities' }" \
'return'
_run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c"
_cleanup_qemu
_launch_qemu
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'qmp_capabilities' }" \
'return'
echo "Adding drive"
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \
""
_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
echo "Creating overlay with qemu-img when the guest is running should be allowed"
_run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" "${TEST_IMG}.overlay"
echo "== Closing an image should unlock it =="
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_del d0' } }" \
""
_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
echo "Adding two and closing one"
for d in d0 d1; do
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \
""
done
_run_cmd $QEMU_IMG info "${TEST_IMG}"
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_del d0' } }" \
""
_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
echo "Closing the other"
_send_qemu_cmd $QEMU_HANDLE \
"{ 'execute': 'human-monitor-command',
'arguments': { 'command-line': 'drive_del d1' } }" \
""
_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
_cleanup_qemu
echo
echo "== Detecting -U and force-share conflicts =="
echo
echo 'No conflict:'
$QEMU_IMG info -U --image-opts driver=null-co,force-share=on
echo
echo 'Conflict:'
$QEMU_IMG info -U --image-opts driver=null-co,force-share=off
echo
echo 'No conflict:'
$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on'
echo
echo 'Conflict:'
$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off'
# success, all done
echo "*** done"
rm -f $seq.full
status=0
|