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#!/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
# allow server sync
restrict 1.example.com nomodify notrap
# Server configuration for: 2.example.com
server 2.example.com iburst
# allow server sync
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()
|
