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 "$SOCK_DIR/nbd.socket"
37 trap "_cleanup; exit \$status" 0 1 2 3 15
39 # get standard environment, filters and checks
52 _launch_qemu -drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
53 -device virtio-blk,drive=drive0
56 echo "Starting a second QEMU using the same image should fail"
57 echo 'quit' | $QEMU -nographic -monitor stdio \
58 -drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
59 -device virtio-blk,drive=drive0 2>&1 | _filter_testdir 2>&1 |
61 sed -e '/falling back to POSIX file/d' \
62 -e '/locks can be lost unexpectedly/d'
67 echo '=== Testing reopen ==='
70 # This tests that reopening does not unshare any permissions it should
72 # (There was a bug where reopening shared exactly the opposite of the
73 # permissions it was supposed to share)
77 _send_qemu_cmd $QEMU_HANDLE \
78 "{'execute': 'qmp_capabilities'}" \
81 # Open the image without any format layer (we are not going to access
82 # it, so that is fine)
83 # This should keep all permissions shared.
84 success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
85 "{'execute': 'blockdev-add',
89 'filename': '$TEST_IMG',
95 # This snapshot will perform a reopen to drop R/W to RO.
96 # It should still keep all permissions shared.
97 success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
98 "{'execute': 'blockdev-snapshot-sync',
100 'node-name': 'node0',
101 'snapshot-file': '$TEST_IMG.overlay',
102 'snapshot-node-name': 'node1'
107 # Now open the same file again
108 # This does not require any permissions (and does not unshare any), so
109 # this will not conflict with node0.
110 success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
111 "{'execute': 'blockdev-add',
113 'node-name': 'node1',
115 'filename': '$TEST_IMG',
121 # Start an NBD server to which we can attach node1
122 success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
123 "{'execute': 'nbd-server-start',
128 'path': '$SOCK_DIR/nbd.socket'
133 # Now we attach the image to the NBD server. This server does require
134 # some permissions (at least WRITE and READ_CONSISTENT), so if
135 # reopening node0 unshared any (which it should not have), this will
136 # fail (but it should not).
137 success_or_failure=y _send_qemu_cmd $QEMU_HANDLE \
138 "{'execute': 'nbd-server-add',
148 echo '=== Testing failure to loosen restrictions ==='
151 _launch_qemu -drive file=$TEST_IMG,if=none,file.locking=on
153 _send_qemu_cmd $QEMU_HANDLE \
154 "{'execute': 'qmp_capabilities'}" \
159 # When quitting qemu, it will try to drop its locks on the test image.
160 # Because that file no longer exists, it will be unable to do so.
161 # However, that is not fatal, so it should just move on.
162 _send_qemu_cmd $QEMU_HANDLE \
163 "{'execute': 'quit'}" \