| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Tests for qmp command nbd-server-remove. |
| 5 | # |
| 6 | # Copyright (c) 2017 Virtuozzo International GmbH |
| 7 | # |
| 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. |
| 12 | # |
| 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. |
| 17 | # |
| 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/>. |
| 20 | # |
| 21 | |
| 22 | import os |
| 23 | import sys |
| 24 | import iotests |
| 25 | import time |
| 26 | from iotests import qemu_img_create, qemu_io, filter_qemu_io, QemuIoInteractive |
| 27 | |
| 28 | nbd_sock = os.path.join(iotests.sock_dir, 'nbd_sock') |
| 29 | nbd_uri = 'nbd+unix:///exp?socket=' + nbd_sock |
| 30 | disk = os.path.join(iotests.test_dir, 'disk') |
| 31 | |
| 32 | |
| 33 | class TestNbdServerRemove(iotests.QMPTestCase): |
| 34 | def setUp(self): |
| 35 | qemu_img_create('-f', iotests.imgfmt, disk, '1M') |
| 36 | |
| 37 | self.vm = iotests.VM().add_drive(disk) |
| 38 | self.vm.launch() |
| 39 | |
| 40 | address = { |
| 41 | 'type': 'unix', |
| 42 | 'data': { |
| 43 | 'path': nbd_sock |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | self.vm.cmd('nbd-server-start', addr=address) |
| 48 | self.vm.cmd('nbd-server-add', device='drive0', name='exp') |
| 49 | |
| 50 | def tearDown(self): |
| 51 | self.vm.shutdown() |
| 52 | os.remove(nbd_sock) |
| 53 | os.remove(disk) |
| 54 | |
| 55 | def remove_export(self, name, mode=None): |
| 56 | if mode is None: |
| 57 | return self.vm.qmp('nbd-server-remove', name=name) |
| 58 | else: |
| 59 | return self.vm.qmp('nbd-server-remove', name=name, mode=mode) |
| 60 | |
| 61 | def assertExportNotFound(self, name): |
| 62 | result = self.vm.qmp('nbd-server-remove', name=name) |
| 63 | desc = result.get('error', {}).get('desc', '') |
| 64 | self.assertIn(desc, ("Export '%s' is not found" % name, |
| 65 | "Export '%s' is already shutting down" % name)) |
| 66 | |
| 67 | def assertExistingClients(self, result): |
| 68 | self.assert_qmp(result, 'error/desc', "export 'exp' still in use") |
| 69 | |
| 70 | def assertReadOk(self, qemu_io_output): |
| 71 | self.assertEqual( |
| 72 | filter_qemu_io(qemu_io_output).strip(), |
| 73 | 'read 512/512 bytes at offset 0\n' + |
| 74 | '512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)') |
| 75 | |
| 76 | def assertReadFailed(self, qemu_io_output): |
| 77 | self.assertEqual(filter_qemu_io(qemu_io_output).strip(), |
| 78 | 'qemu-io: read failed: Input/output error') |
| 79 | |
| 80 | def assertConnectFailed(self, qemu_io_output): |
| 81 | self.assertEqual(filter_qemu_io(qemu_io_output).strip(), |
| 82 | "qemu-io: can't open device " + nbd_uri + |
| 83 | ": Requested export not available\n" |
| 84 | "server reported: export 'exp' not present") |
| 85 | |
| 86 | def do_test_connect_after_remove(self, mode=None): |
| 87 | args = ('-r', '-f', 'raw', '-c', 'read 0 512', nbd_uri) |
| 88 | self.assertReadOk(qemu_io(*args).stdout) |
| 89 | |
| 90 | result = self.remove_export('exp', mode) |
| 91 | self.assert_qmp(result, 'return', {}) |
| 92 | |
| 93 | self.assertExportNotFound('exp') |
| 94 | self.assertConnectFailed(qemu_io(*args, check=False).stdout) |
| 95 | |
| 96 | def test_connect_after_remove_default(self): |
| 97 | self.do_test_connect_after_remove() |
| 98 | |
| 99 | def test_connect_after_remove_safe(self): |
| 100 | self.do_test_connect_after_remove('safe') |
| 101 | |
| 102 | def test_connect_after_remove_force(self): |
| 103 | self.do_test_connect_after_remove('hard') |
| 104 | |
| 105 | def do_test_remove_during_connect_safe(self, mode=None): |
| 106 | qio = QemuIoInteractive('-r', '-f', 'raw', nbd_uri) |
| 107 | self.assertReadOk(qio.cmd('read 0 512')) |
| 108 | |
| 109 | result = self.remove_export('exp', mode) |
| 110 | self.assertExistingClients(result) |
| 111 | |
| 112 | self.assertReadOk(qio.cmd('read 0 512')) |
| 113 | |
| 114 | qio.close() |
| 115 | |
| 116 | result = self.remove_export('exp', mode) |
| 117 | self.assert_qmp(result, 'return', {}) |
| 118 | |
| 119 | self.assertExportNotFound('exp') |
| 120 | |
| 121 | def test_remove_during_connect_default(self): |
| 122 | self.do_test_remove_during_connect_safe() |
| 123 | |
| 124 | def test_remove_during_connect_safe(self): |
| 125 | self.do_test_remove_during_connect_safe('safe') |
| 126 | |
| 127 | def test_remove_during_connect_hard(self): |
| 128 | qio = QemuIoInteractive('-r', '-f', 'raw', nbd_uri) |
| 129 | self.assertReadOk(qio.cmd('read 0 512')) |
| 130 | |
| 131 | result = self.remove_export('exp', 'hard') |
| 132 | self.assert_qmp(result, 'return', {}) |
| 133 | |
| 134 | self.assertReadFailed(qio.cmd('read 0 512')) |
| 135 | self.assertExportNotFound('exp') |
| 136 | |
| 137 | qio.close() |
| 138 | |
| 139 | def test_remove_during_connect_safe_hard(self): |
| 140 | qio = QemuIoInteractive('-r', '-f', 'raw', nbd_uri) |
| 141 | self.assertReadOk(qio.cmd('read 0 512')) |
| 142 | |
| 143 | result = self.remove_export('exp', 'safe') |
| 144 | self.assertExistingClients(result) |
| 145 | |
| 146 | self.assertReadOk(qio.cmd('read 0 512')) |
| 147 | |
| 148 | result = self.remove_export('exp', 'hard') |
| 149 | self.assert_qmp(result, 'return', {}) |
| 150 | |
| 151 | self.assertExportNotFound('exp') |
| 152 | self.assertReadFailed(qio.cmd('read 0 512')) |
| 153 | qio.close() |
| 154 | |
| 155 | |
| 156 | if __name__ == '__main__': |
| 157 | iotests.main(supported_fmts=['raw'], |
| 158 | supported_protocols=['nbd']) |