summaryrefslogtreecommitdiff
path: root/src/tests/test_ntp.py
blob: 0b0b67231d89ad3d19f65c1bd796582f54c245c5 (plain)
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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
#!/usr/bin/env python3
#
# Copyright (C) 2018 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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 tempfile
import unittest
from unittest import TestCase, mock
import ipaddress
from contextlib import ExitStack 
import textwrap

from vyos import ConfigError
from vyos.config import Config
try:
    from src.conf_mode import ntp
except ModuleNotFoundError:  # for unittest.main()
    import sys
    sys.path.append(os.path.join(os.path.dirname(__file__), '../..'))
    from src.conf_mode import ntp


class TestNtp(TestCase):

    def test_get_config(self):
        tests = [
            {
                'name': 'empty',
                'config': {
                    'system ntp': None,
                },
                'expected': None,
            },
            {
                'name': 'full-options',
                'config': {
                    'system ntp': 'yes',
                    'allow-clients address': ['192.0.2.0/24'],
                    'listen-address': ['198.51.100.0/24'],
                    'server': ['example.com'],
                    'server example.com noselect': 'yes',
                    'server example.com preempt': 'yes',
                    'server example.com prefer': 'yes',
                },
                'expected': {
                    'allowed_networks': [{
                        'address': ipaddress.ip_address('192.0.2.0'),
                        'netmask': ipaddress.ip_address('255.255.255.0'),
                        'network': '192.0.2.0/24',
                    }],
                    'listen_address': ['198.51.100.0/24'],
                    'servers': [
                        {'name': 'example.com', 'options': ['noselect', 'preempt', 'prefer']}
                    ]
                },
            },
            {
                'name': 'non-options',
                'config': {
                    'system ntp': 'yes',
                    'allow-clients address': ['192.0.2.0/24'],
                    'listen-address': ['198.51.100.0/24'],
                    'server': ['example.com'],
                },
                'expected': {
                    'allowed_networks': [{
                        'address': ipaddress.ip_address('192.0.2.0'),
                        'netmask': ipaddress.ip_address('255.255.255.0'),
                        'network': '192.0.2.0/24',
                    }],
                    'listen_address': ['198.51.100.0/24'],
                    'servers': [
                        {'name': 'example.com', 'options': []}
                    ]
                },
            },
        ]
        for case in tests:
            def mocked_fn(path):
                return case['config'].get(path)

            with self.subTest(msg = case['name']):
                m = {
                    'return_value': mock.Mock(side_effect = mocked_fn),
                    'return_values': mock.Mock(side_effect = mocked_fn),
                    'list_nodes': mock.Mock(side_effect = mocked_fn),
                    'exists': mock.Mock(side_effect = mocked_fn),
                }
                with mock.patch.multiple(Config, **m):
                    actual = ntp.get_config()
                    self.assertEqual(actual, case['expected'])

    def test_verify(self):
        tests = [
            {
                'name': 'none',
                'config': None,
                'expected': None
            },
            {
                'name': 'valid',
                'config': {
                    'allowed_networks': [{
                        'address': ipaddress.ip_address('192.0.2.1'),
                        'netmask': ipaddress.ip_address('255.255.255.0'),
                        'network': '192.0.2.0/24',
                    }],
                    'listen_address': ['198.51.100.0/24'],
                    'servers': [
                        {'name': 'example.com', 'options': ['noselect', 'preempt', 'prefer']}
                    ]
                },
                'expected': None,
            },
            {
                'name': 'not configure servers',
                'config': {
                    'allowed_networks': [{
                        'address': ipaddress.ip_address('192.0.2.1'),
                        'netmask': ipaddress.ip_address('255.255.255.0'),
                        'network': '192.0.2.0/24',
                    }],
                    'servers': []
                },
                'expected': ConfigError,
            },
            {
                'name': 'does not exist in the network',
                'config': {
                    'allowed_networks': [{
                        'address': ipaddress.ip_address('192.0.2.1'),
                        'netmask': ipaddress.ip_address('255.255.255.0'),
                        'network': '192.0.2.0/50', # invalid netmask
                    }],
                    'listen_address': ['198.51.100.0/24'],
                    'servers': [
                        {'name': 'example.com', 'options': []}
                    ]
                },
                'expected': ConfigError,
            },
        ]
        for case in tests:
            with self.subTest(msg = case['name']):
                if case['expected'] is not None:
                    with self.assertRaises(case['expected']):
                        ntp.verify(case['config'])
                else:
                    ntp.verify(case['config'])

    def test_generate(self):
        tests = [
            {
                'name': 'empty',
                'config': None,
                'expected': '',
            },
            {
                'name': 'valid',
                'config': {
                    'allowed_networks': [
                        {
                            'address': ipaddress.ip_address('192.0.2.1'),
                            'netmask': ipaddress.ip_address('255.255.255.0'),
                            'network': '192.0.2.0/24',
                        },
                        {
                            'address': ipaddress.ip_address('198.51.100.1'),
                            'netmask': ipaddress.ip_address('255.255.255.0'),
                            'network': '198.51.100.0/24',
                        },
                    ],
                    'listen_address': ['198.51.100.0/24'],
                    'servers': [
                        {'name': '1.example.com', 'options': ['noselect', 'preempt', 'prefer']},
                        {'name': '2.example.com', 'options': []},
                    ]
                },
                'expected': textwrap.dedent('''
                    ### Autogenerated by ntp.py ###

                    #
                    # Non-configurable defaults
                    #
                    driftfile /var/lib/ntp/ntp.drift
                    # By default, only allow ntpd to query time sources, ignore any incoming requests
                    restrict default noquery nopeer notrap nomodify noquery notrust
                    # Local users have unrestricted access, allowing reconfiguration via ntpdc
                    restrict 127.0.0.1
                    restrict -6 ::1


                    #
                    # Configurable section
                    #

                    # Server configuration for: 1.example.com
                    server 1.example.com iburst noselect preempt prefer
                    restrict  1.example.com nomodify notrap

                    # Server configuration for: 2.example.com
                    server 2.example.com iburst
                    restrict  2.example.com nomodify notrap

                    # Client configuration for network: 192.0.2.0/24
                    restrict 192.0.2.1 mask 255.255.255.0 nomodify notrap nopeer
                    
                    # Client configuration for network: 198.51.100.0/24
                    restrict 198.51.100.1 mask 255.255.255.0 nomodify notrap nopeer


                    # NTP should listen on configured addresses only
                    interface ignore wildcard
                    interface listen 198.51.100.0/24

                '''),
            },
        ]

        for case in tests:
            with self.subTest(msg = case['name']):
                with tempfile.NamedTemporaryFile() as fp:
                    ntp.config_file = fp.name

                    ntp.generate(case['config'])
                    actual = fp.file.read().decode('ascii')
                    # print(actual)
                    self.assertEqual(case['expected'], actual)

    def test_apply(self):
        with tempfile.NamedTemporaryFile(delete = False) as fp:
            ntp.config_file = fp.name
            with mock.patch('os.system') as os_system:
                ntp.apply({}) # some configure
                os_system.assert_has_calls([
                    mock.call('sudo systemctl restart ntp.service'),
                ])
                self.assertTrue(os.path.exists(fp.name))
                
                ntp.apply(None) # empty configure
                os_system.assert_has_calls([
                    mock.call('sudo systemctl stop ntp.service'),
                ])
                self.assertFalse(os.path.exists(fp.name))

if __name__ == "__main__":
    unittest.main()