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
|
#!/usr/bin/env bash
#
# Test image locking for POSIX locks
#
# Copyright 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 "$TEST_IMG.overlay"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.qemu
_supported_fmt qcow2
_supported_proto file
_supported_os Linux
size=32M
case "$QEMU_DEFAULT_MACHINE" in
s390-ccw-virtio)
virtioblk=virtio-blk-ccw
;;
*)
virtioblk=virtio-blk-pci
;;
esac
_make_test_img $size
echo "Starting QEMU"
_launch_qemu -drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
-device $virtioblk,drive=drive0
echo
echo "Starting a second QEMU using the same image should fail"
echo 'quit' | $QEMU -nographic -monitor stdio \
-drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
-device $virtioblk,drive=drive0 2>&1 | _filter_testdir 2>&1 |
_filter_qemu |
sed -e '/falling back to POSIX file/d' \
-e '/locks can be lost unexpectedly/d'
_cleanup_qemu
echo
echo '=== Testing reopen ==='
echo
# This tests that reopening does not unshare any permissions it should
# not unshare
# (There was a bug where reopening shared exactly the opposite of the
# permissions it was supposed to share)
_launch_qemu
_send_qemu_cmd $QEMU_HANDLE \
"{'execute': 'qmp_capabilities'}" \
'return'
# Open the image without any format layer (we are not going to access
# it, so that is fine)
# This should keep all permissions shared.
success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
"{'execute': 'blockdev-add',
'arguments': {
'node-name': 'node0',
'driver': 'file',
'filename': '$TEST_IMG',
'locking': 'on'
} }" \
'return' \
'error'
# This snapshot will perform a reopen to drop R/W to RO.
# It should still keep all permissions shared.
success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
"{'execute': 'blockdev-snapshot-sync',
'arguments': {
'node-name': 'node0',
'snapshot-file': '$TEST_IMG.overlay',
'snapshot-node-name': 'node1'
} }" \
'return' \
'error'
# Now open the same file again
# This does not require any permissions (and does not unshare any), so
# this will not conflict with node0.
success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
"{'execute': 'blockdev-add',
'arguments': {
'node-name': 'node1',
'driver': 'file',
'filename': '$TEST_IMG',
'locking': 'on'
} }" \
'return' \
'error'
# Now we attach the image to a virtio-blk device. This device does
# require some permissions (at least WRITE and READ_CONSISTENT), so if
# reopening node0 unshared any (which it should not have), this will
# fail (but it should not).
success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
"{'execute': 'device_add',
'arguments': {
'driver': 'virtio-blk',
'drive': 'node1'
} }" \
'return' \
'error'
_cleanup_qemu
# success, all done
echo "*** done"
rm -f $seq.full
status=0
|
