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
|
#!/usr/bin/env python
#
# Test case for NBD's blockdev-add interface
#
# Copyright (C) 2016 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/>.
#
import os
import socket
import stat
import time
import iotests
from iotests import cachemode, imgfmt, qemu_img, qemu_nbd
NBD_PORT = 10811
test_img = os.path.join(iotests.test_dir, 'test.img')
unix_socket = os.path.join(iotests.test_dir, 'nbd.socket')
def flatten_sock_addr(crumpled_address):
result = { 'type': crumpled_address['type'] }
result.update(crumpled_address['data'])
return result
class NBDBlockdevAddBase(iotests.QMPTestCase):
def blockdev_add_options(self, address, export=None):
options = { 'node-name': 'nbd-blockdev',
'driver': 'raw',
'file': {
'driver': 'nbd',
'server': address
} }
if export is not None:
options['file']['export'] = export
return options
def client_test(self, filename, address, export=None):
bao = self.blockdev_add_options(address, export)
result = self.vm.qmp('blockdev-add', **bao)
self.assert_qmp(result, 'return', {})
result = self.vm.qmp('query-named-block-nodes')
for node in result['return']:
if node['node-name'] == 'nbd-blockdev':
if isinstance(filename, str):
self.assert_qmp(node, 'image/filename', filename)
else:
self.assert_json_filename_equal(node['image']['filename'],
filename)
break
result = self.vm.qmp('blockdev-del', node_name='nbd-blockdev')
self.assert_qmp(result, 'return', {})
class QemuNBD(NBDBlockdevAddBase):
def setUp(self):
qemu_img('create', '-f', iotests.imgfmt, test_img, '64k')
self.vm = iotests.VM()
self.vm.launch()
def tearDown(self):
self.vm.shutdown()
os.remove(test_img)
try:
os.remove(unix_socket)
except OSError:
pass
def _server_up(self, *args):
self.assertEqual(qemu_nbd('-f', imgfmt, test_img, *args), 0)
def test_inet(self):
self._server_up('-p', str(NBD_PORT))
address = { 'type': 'inet',
'data': {
'host': 'localhost',
'port': str(NBD_PORT)
} }
self.client_test('nbd://localhost:%i' % NBD_PORT,
flatten_sock_addr(address))
def test_unix(self):
self._server_up('-k', unix_socket)
address = { 'type': 'unix',
'data': { 'path': unix_socket } }
self.client_test('nbd+unix://?socket=' + unix_socket,
flatten_sock_addr(address))
class BuiltinNBD(NBDBlockdevAddBase):
def setUp(self):
qemu_img('create', '-f', iotests.imgfmt, test_img, '64k')
self.vm = iotests.VM()
self.vm.launch()
self.server = iotests.VM('.server')
self.server.add_drive_raw('if=none,id=nbd-export,' +
'file=%s,' % test_img +
'format=%s,' % imgfmt +
'cache=%s' % cachemode)
self.server.launch()
def tearDown(self):
self.vm.shutdown()
self.server.shutdown()
os.remove(test_img)
try:
os.remove(unix_socket)
except OSError:
pass
def _server_up(self, address):
result = self.server.qmp('nbd-server-start', addr=address)
self.assert_qmp(result, 'return', {})
result = self.server.qmp('nbd-server-add', device='nbd-export')
self.assert_qmp(result, 'return', {})
def _server_down(self):
result = self.server.qmp('nbd-server-stop')
self.assert_qmp(result, 'return', {})
def test_inet(self):
address = { 'type': 'inet',
'data': {
'host': 'localhost',
'port': str(NBD_PORT)
} }
self._server_up(address)
self.client_test('nbd://localhost:%i/nbd-export' % NBD_PORT,
flatten_sock_addr(address), 'nbd-export')
self._server_down()
def test_inet6(self):
try:
socket.getaddrinfo("::0", "0", socket.AF_INET6,
socket.SOCK_STREAM, socket.IPPROTO_TCP,
socket.AI_ADDRCONFIG | socket.AI_CANONNAME)
except socket.gaierror:
# IPv6 not available, skip
return
address = { 'type': 'inet',
'data': {
'host': '::1',
'port': str(NBD_PORT),
'ipv4': False,
'ipv6': True
} }
filename = { 'driver': 'raw',
'file': {
'driver': 'nbd',
'export': 'nbd-export',
'server': flatten_sock_addr(address)
} }
self._server_up(address)
self.client_test(filename, flatten_sock_addr(address), 'nbd-export')
self._server_down()
def test_unix(self):
address = { 'type': 'unix',
'data': { 'path': unix_socket } }
self._server_up(address)
self.client_test('nbd+unix:///nbd-export?socket=' + unix_socket,
flatten_sock_addr(address), 'nbd-export')
self._server_down()
def test_fd(self):
self._server_up({ 'type': 'unix',
'data': { 'path': unix_socket } })
sockfd = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sockfd.connect(unix_socket)
result = self.vm.send_fd_scm(str(sockfd.fileno()))
self.assertEqual(result, 0, 'Failed to send socket FD')
result = self.vm.qmp('getfd', fdname='nbd-fifo')
self.assert_qmp(result, 'return', {})
address = { 'type': 'fd',
'data': { 'str': 'nbd-fifo' } }
filename = { 'driver': 'raw',
'file': {
'driver': 'nbd',
'export': 'nbd-export',
'server': flatten_sock_addr(address)
} }
self.client_test(filename, flatten_sock_addr(address), 'nbd-export')
self._server_down()
if __name__ == '__main__':
# Need to support image creation
iotests.main(supported_fmts=['vpc', 'parallels', 'qcow', 'vdi', 'qcow2',
'vmdk', 'raw', 'vhdx', 'qed'])
|
