4 # Test image locking for POSIX locks
6 # Copyright 2017 Red Hat, Inc.
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.
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.
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/>.
26 echo "QA output created by $seq"
29 status
=1 # failure is the default!
34 _rm_test_img
"$TEST_IMG.overlay"
35 rm -f "$SOCK_DIR/nbd.socket"
37 trap "_cleanup; exit \$status" 0 1 2 3 15
39 # get standard environment, filters and checks
49 case "$QEMU_DEFAULT_MACHINE" in
51 virtioblk
=virtio-blk-ccw
54 virtioblk
=virtio-blk-pci
61 _launch_qemu
-drive file=$TEST_IMG,if=none
,id
=drive0
,file.locking
=on \
62 -device $virtioblk,drive
=drive0
65 echo "Starting a second QEMU using the same image should fail"
66 echo 'quit' |
$QEMU -nographic -monitor stdio \
67 -drive file=$TEST_IMG,if=none
,id
=drive0
,file.locking
=on \
68 -device $virtioblk,drive
=drive0
2>&1 | _filter_testdir
2>&1 |
70 sed -e '/falling back to POSIX file/d' \
71 -e '/locks can be lost unexpectedly/d'
76 echo '=== Testing reopen ==='
79 # This tests that reopening does not unshare any permissions it should
81 # (There was a bug where reopening shared exactly the opposite of the
82 # permissions it was supposed to share)
86 _send_qemu_cmd
$QEMU_HANDLE \
87 "{'execute': 'qmp_capabilities'}" \
90 # Open the image without any format layer (we are not going to access
91 # it, so that is fine)
92 # This should keep all permissions shared.
93 success_or_failure
=y _send_qemu_cmd
$QEMU_HANDLE \
94 "{'execute': 'blockdev-add',
98 'filename': '$TEST_IMG',
104 # This snapshot will perform a reopen to drop R/W to RO.
105 # It should still keep all permissions shared.
106 success_or_failure
=y _send_qemu_cmd
$QEMU_HANDLE \
107 "{'execute': 'blockdev-snapshot-sync',
109 'node-name': 'node0',
110 'snapshot-file': '$TEST_IMG.overlay',
111 'snapshot-node-name': 'node1'
116 # Now open the same file again
117 # This does not require any permissions (and does not unshare any), so
118 # this will not conflict with node0.
119 success_or_failure
=y _send_qemu_cmd
$QEMU_HANDLE \
120 "{'execute': 'blockdev-add',
122 'node-name': 'node1',
124 'filename': '$TEST_IMG',
130 # Start an NBD server to which we can attach node1
131 success_or_failure
=y _send_qemu_cmd
$QEMU_HANDLE \
132 "{'execute': 'nbd-server-start',
137 'path': '$SOCK_DIR/nbd.socket'
142 # Now we attach the image to the NBD server. This server does require
143 # some permissions (at least WRITE and READ_CONSISTENT), so if
144 # reopening node0 unshared any (which it should not have), this will
145 # fail (but it should not).
146 success_or_failure
=y _send_qemu_cmd
$QEMU_HANDLE \
147 "{'execute': 'nbd-server-add',
157 echo '=== Testing failure to loosen restrictions ==='
160 _launch_qemu
-drive file=$TEST_IMG,if=none
,file.locking
=on
162 _send_qemu_cmd
$QEMU_HANDLE \
163 "{'execute': 'qmp_capabilities'}" \
168 # When quitting qemu, it will try to drop its locks on the test image.
169 # Because that file no longer exists, it will be unable to do so.
170 # However, that is not fatal, so it should just move on.
171 _send_qemu_cmd
$QEMU_HANDLE \
172 "{'execute': 'quit'}" \