iotests: Test block-export-* QMP interface
[qemu.git] / tests / qemu-iotests / 307
1 #!/usr/bin/env python3
2 #
3 # Copyright (C) 2020 Red Hat, Inc.
4 #
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
17 #
18 # Creator/Owner: Kevin Wolf <kwolf@redhat.com>
19 #
20 # Test the block export QAPI interfaces
21
22 import iotests
23 import os
24
25 # Need a writable image format (but not vpc, which rounds the image size, nor
26 # luks which requires special command lines)
27 iotests.script_initialize(
28     supported_fmts=['generic'],
29     unsupported_fmts=['luks', 'vpc'],
30     supported_platforms=['linux'],
31 )
32
33 with iotests.FilePath('image') as img, \
34      iotests.FilePath('socket', base_dir=iotests.sock_dir) as socket, \
35      iotests.VM() as vm:
36
37     iotests.qemu_img('create', '-f', iotests.imgfmt, img, '64M')
38     iotests.qemu_io_log('-f', iotests.imgfmt, '-c', 'write -P 0x11 0 4k', img)
39
40     iotests.log('=== Launch VM ===')
41
42     virtio_scsi_device = iotests.get_virtio_scsi_device()
43
44     vm.add_object('iothread,id=iothread0')
45     vm.add_blockdev(f'file,filename={img},node-name=file')
46     vm.add_blockdev(f'{iotests.imgfmt},file=file,node-name=fmt')
47     vm.add_blockdev('raw,file=file,node-name=ro,read-only=on')
48     vm.add_device(f'id=scsi0,driver={virtio_scsi_device},iothread=iothread0')
49     vm.launch()
50
51     vm.qmp_log('nbd-server-start',
52                addr={'type': 'unix', 'data': {'path': socket}},
53                filters=(iotests.filter_qmp_testfiles, ))
54     vm.qmp_log('query-block-exports')
55
56     iotests.log('\n=== Create a read-only NBD export ===')
57
58     vm.qmp_log('block-export-add', id='export0', type='nbd', node_name='fmt')
59     vm.qmp_log('query-block-exports')
60
61     iotests.qemu_nbd_list_log('-k', socket)
62
63     iotests.log('\n=== Try a few invalid things ===')
64
65     vm.qmp_log('block-export-add', id='#invalid', type='nbd', node_name='fmt')
66     vm.qmp_log('block-export-add', id='export0', type='nbd', node_name='fmt')
67     vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='ro',
68                writable=True)
69     vm.qmp_log('block-export-del', id='export1')
70     vm.qmp_log('query-block-exports')
71
72     iotests.log('\n=== Move export to an iothread ===')
73
74     vm.qmp_log('device_add', id='sda', driver='scsi-hd', drive='fmt')
75     vm.qmp_log('query-block-exports')
76     iotests.qemu_nbd_list_log('-k', socket)
77
78     iotests.log('\n=== Add a writable export ===')
79
80     # This fails because share-rw=off
81     vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='fmt',
82                name='export1', writable=True, writethrough=True,
83                description='This is the writable second export')
84
85     vm.qmp_log('device_del', id='sda')
86     event = vm.event_wait(name="DEVICE_DELETED",
87                           match={'data': {'device': 'sda'}})
88     iotests.log(event, filters=[iotests.filter_qmp_event])
89     vm.qmp_log('device_add', id='sda', driver='scsi-hd', drive='fmt',
90                share_rw=True)
91
92     # Now it should work
93     vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='fmt',
94                name='export1', writable=True, writethrough=True,
95                description='This is the writable second export')
96
97     vm.qmp_log('query-block-exports')
98     iotests.qemu_nbd_list_log('-k', socket)
99
100     iotests.log('\n=== Connect qemu-io to export1, try removing exports ===')
101
102     nbd_url = f'nbd+unix:///export1?socket={socket}'
103     qemu_io = iotests.QemuIoInteractive('-f', 'raw', nbd_url)
104
105     iotests.log(qemu_io.cmd('read -P 0x11 0 4k'),
106                 filters=[iotests.filter_qemu_io])
107     iotests.log(qemu_io.cmd('write -P 0x22 4k 4k'),
108                 filters=[iotests.filter_qemu_io])
109
110     vm.qmp_log('block-export-del', id='export1')
111     vm.qmp_log('block-export-del', id='export0')
112     iotests.log(vm.get_qmp_events_filtered())
113     qemu_io.close()
114
115     vm.qmp_log('query-block-exports')
116     iotests.qemu_nbd_list_log('-k', socket)
117
118     iotests.log('\n=== Connect qemu-io again, try force removing ===')
119
120     qemu_io = iotests.QemuIoInteractive('-f', 'raw', nbd_url)
121     vm.qmp_log('block-export-del', id='export1')
122     vm.qmp_log('block-export-del', id='export1', mode='hard')
123
124     # This should fail now
125     iotests.log(qemu_io.cmd('read -P 0x11 0 4k'))
126     qemu_io.close()
127
128     vm.qmp_log('query-block-exports')
129     iotests.qemu_nbd_list_log('-k', socket)
130
131     iotests.log('\n=== Shut down QEMU ===')
132     vm.shutdown()