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
|
import os.path
import shutil
import subprocess
from ipaddress import IPv4Address
from subprocess import Popen
from typing import Optional, List
from unittest import TestCase
from unittest.mock import patch, Mock, PropertyMock
from blueman.main.NetConf import DnsMasqHandler, NetworkSetupError, DhcpdHandler, UdhcpdHandler, NetConf, DHCPHandler
class FakeSocket:
def __init__(self, connect_return_value: int) -> None:
self._ret = connect_return_value
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
pass
def connect_ex(self, *_args: object) -> int:
return self._ret
@patch("blueman.main.NetConf.have", return_value="/usr/bin/mydnsmasq")
@patch("blueman.main.NetConf.DnsMasqHandler._pid_path", PropertyMock(return_value="/tmp/pid"))
class TestDnsmasqHandler(TestCase):
@patch("blueman.main.NetConf.Popen", return_value=Popen("true"))
@patch("blueman.main.NetConf.NetConf.lock")
@patch("blueman.main.NetConf.socket.socket", lambda *args: FakeSocket(1))
@patch("blueman.main.NetConf.DNSServerProvider.get_servers", lambda: [])
def test_success_with_dns(self, lock_mock: Mock, popen_mock: Mock, have_mock: Mock) -> None:
with open("/tmp/pid", "w") as f:
f.write("123")
DnsMasqHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
lock_mock.assert_called_with("dhcp")
@patch("blueman.main.NetConf.Popen", return_value=Popen("true"))
@patch("blueman.main.NetConf.NetConf.lock")
@patch("blueman.main.NetConf.socket.socket", lambda *args: FakeSocket(0))
@patch("blueman.main.NetConf.DNSServerProvider.get_servers", lambda: [IPv4Address("203.0.113.10")])
def test_success_without_dns(self, lock_mock: Mock, popen_mock: Mock, have_mock: Mock) -> None:
with open("/tmp/pid", "w") as f:
f.write("123")
DnsMasqHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock, ["--port=0", "--dhcp-option=option:dns-server,203.0.113.10"])
lock_mock.assert_called_with("dhcp")
@patch("blueman.main.NetConf.Popen", return_value=Popen(["sh", "-c", "echo errormsg >&2"], stderr=subprocess.PIPE))
@patch("blueman.main.NetConf.socket.socket", lambda *args: FakeSocket(1))
@patch("blueman.main.NetConf.DNSServerProvider.get_servers", lambda: [])
def test_failure(self, popen_mock: Mock, have_mock: Mock) -> None:
with self.assertRaises(NetworkSetupError) as cm:
DnsMasqHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
self.assertEqual(cm.exception.args, ("dnsmasq failed to start: errormsg",))
def _check_invocation(self, have_mock: Mock, popen_mock: Mock, additional_args: Optional[List[str]] = None) -> None:
have_mock.assert_called_with("dnsmasq")
popen_mock.assert_called_with(
["/usr/bin/mydnsmasq", "--pid-file=/tmp/pid", "--except-interface=lo",
"--interface=pan1", "--bind-interfaces", "--dhcp-range=203.0.113.2,203.0.113.254,60m",
"--dhcp-option=option:router,203.0.113.1"] + ([] if additional_args is None else additional_args),
stderr=subprocess.PIPE
)
@patch("blueman.main.NetConf.have", return_value="/usr/bin/mydhcpd")
@patch("blueman.main.NetConf.DhcpdHandler._pid_path", PropertyMock(return_value="/tmp/pid"))
@patch("blueman.main.NetConf.DHCP_CONFIG_FILE", "/tmp/dhcpd.conf")
@patch("blueman.main.NetConf.DNSServerProvider.get_servers", lambda: [])
class TestDhcpdHandler(TestCase):
@classmethod
def setUpClass(cls) -> None:
with open("/tmp/dhcpd.conf", "w"):
pass
@classmethod
def tearDownClass(cls) -> None:
os.remove("/tmp/dhcpd.conf")
@patch("blueman.main.NetConf.Popen", return_value=Popen(["sh", "-c", "echo warning >&2"], stderr=subprocess.PIPE))
@patch("blueman.main.NetConf.NetConf.lock")
def test_success(self, lock_mock: Mock, popen_mock: Mock, have_mock: Mock) -> None:
with open("/tmp/pid", "w") as f:
f.write("123")
DhcpdHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
lock_mock.assert_called_with("dhcp")
@patch("blueman.main.NetConf.Popen",
return_value=Popen(["sh", "-c", "echo errormsg >&2; exit 1"], stderr=subprocess.PIPE))
def test_failure(self, popen_mock: Mock, have_mock: Mock) -> None:
with self.assertRaises(NetworkSetupError) as cm:
DhcpdHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
self.assertEqual(cm.exception.args, ("dhcpd failed to start: errormsg",))
def _check_invocation(self, have_mock: Mock, popen_mock: Mock) -> None:
have_mock.assert_called_with("dhcpd3")
popen_mock.assert_called_with(
["/usr/bin/mydhcpd", "-pf", "/tmp/pid", "pan1"],
stderr=subprocess.PIPE
)
@patch("blueman.main.NetConf.have", return_value="/usr/bin/myudhcpd")
@patch("blueman.main.NetConf.UdhcpdHandler._pid_path", PropertyMock(return_value="/tmp/pid"))
@patch("blueman.main.NetConf.DNSServerProvider.get_servers", lambda: [])
class TestUdhcpdHandler(TestCase):
@classmethod
def setUpClass(cls) -> None:
with open("/tmp/dhcpd.conf", "w"):
pass
@classmethod
def tearDownClass(cls) -> None:
os.remove("/tmp/dhcpd.conf")
@patch("blueman.main.NetConf.Popen", return_value=Popen(["sh", "-c", "echo warning >&2"], stderr=subprocess.PIPE))
@patch("blueman.main.NetConf.NetConf.lock")
@patch("blueman.main.NetConf._is_running", lambda _name, _pid: True)
def test_success(self, lock_mock: Mock, popen_mock: Mock, have_mock: Mock) -> None:
with open("/tmp/pid", "w") as f:
f.write("123")
UdhcpdHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
lock_mock.assert_called_with("dhcp")
@patch("blueman.main.NetConf.Popen", return_value=Popen(["sh", "-c", "echo errormsg >&2"], stderr=subprocess.PIPE))
@patch("blueman.main.NetConf._is_running", lambda _name, _pid: False)
def test_failure(self, popen_mock: Mock, have_mock: Mock) -> None:
with open("/tmp/pid", "w") as f:
f.write("123")
with self.assertRaises(NetworkSetupError) as cm:
UdhcpdHandler().apply("203.0.113.1", "255.255.255.0")
self._check_invocation(have_mock, popen_mock)
self.assertEqual(cm.exception.args, ("udhcpd failed to start: errormsg",))
def _check_invocation(self, have_mock: Mock, popen_mock: Mock) -> None:
have_mock.assert_called_with("udhcpd")
args = popen_mock.call_args
self.assertEqual(len(args[0]), 1)
self.assertEqual(args[0][0][:-1], ["/usr/bin/myudhcpd", "-S"])
self.assertEqual(args[1], {"stderr": subprocess.PIPE})
@patch("blueman.main.NetConf.NetConf._IPV4_SYS_PATH", "/tmp/blueman-test/ipv4")
@patch("blueman.main.NetConf.NetConf._RUN_PATH", "/tmp/blueman-test/run")
@patch("blueman.main.NetConf.create_bridge")
@patch("blueman.main.NetConf.call", return_value=0)
class TestNetConf(TestCase):
def setUp(self) -> None:
os.makedirs("/tmp/blueman-test/run", exist_ok=True)
os.makedirs("/tmp/blueman-test/ipv4/conf", exist_ok=True)
os.makedirs("/tmp/blueman-test/ipv4/conf/i0", exist_ok=True)
os.makedirs("/tmp/blueman-test/ipv4/conf/i1", exist_ok=True)
def tearDown(self) -> None:
shutil.rmtree("/tmp/blueman-test")
class TestDHCPHandler(DHCPHandler):
@property
def _key(self) -> str:
return "test-dhcp-handler"
apply = Mock()
class TestDHCPHandler2(TestDHCPHandler):
clean_up = Mock()
def test_initial_apply(self, call_mock: Mock, bridge_mock: Mock) -> None:
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler, False)
bridge_mock.assert_called_once_with("pan1")
self._check_forwarding()
self._check_iptables(call_mock)
self.TestDHCPHandler.apply.assert_called_with("203.0.113.1", "255.255.255.0")
call_mock.assert_any_call(["ip", "link", "set", "dev", "pan1", "up"])
call_mock.assert_any_call(["ip", "address", "add", "203.0.113.1/255.255.255.0", "dev", "pan1"])
self.assertTrue(NetConf.locked("netconfig"))
def test_address_change(self, call_mock: Mock, bridge_mock: Mock) -> None:
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler, True)
bridge_mock.assert_called_once_with("pan1")
self._check_forwarding()
self._check_iptables(call_mock)
self.TestDHCPHandler.apply.assert_called_with("203.0.113.1", "255.255.255.0")
call_mock.assert_any_call(["ip", "link", "set", "dev", "pan1", "up"])
call_mock.assert_any_call(["ip", "address", "add", "203.0.113.1/255.255.255.0", "dev", "pan1"])
self.assertTrue(NetConf.locked("netconfig"))
@patch("blueman.main.NetConf.have", lambda key: key != "ip")
def test_nettools(self, call_mock: Mock, bridge_mock: Mock) -> None:
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler, False)
bridge_mock.assert_called_once_with("pan1")
self._check_forwarding()
call_mock.assert_any_call(["ifconfig", "pan1", "203.0.113.1", "netmask", "255.255.255.0", "up"])
self.assertTrue(NetConf.locked("netconfig"))
def _check_forwarding(self) -> None:
for file in [
"/tmp/blueman-test/ipv4/ip_forward",
"/tmp/blueman-test/ipv4/conf/i0/forwarding",
"/tmp/blueman-test/ipv4/conf/i1/forwarding",
]:
with open(file, "r") as f:
self.assertEqual(f.read(), "1")
def _check_iptables(self, call_mock: Mock, remove: bool = False) -> None:
command = "-D" if remove else "-A"
call_mock.assert_any_call(["/sbin/iptables", "-t", "nat", command, "POSTROUTING",
"-s", "203.0.113.1/255.255.255.0", "-j", "MASQUERADE"])
call_mock.assert_any_call(["/sbin/iptables", "-t", "filter", command, "FORWARD", "-i", "pan1", "-j", "ACCEPT"])
call_mock.assert_any_call(["/sbin/iptables", "-t", "filter", command, "FORWARD", "-o", "pan1", "-j", "ACCEPT"])
self.assertEqual(NetConf.locked("iptables"), not remove)
def test_dhcp_handler_replacement(self, _call_mock: Mock, _bridge_mock: Mock) -> None:
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler2, False)
self.TestDHCPHandler2.clean_up.reset_mock()
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler, False)
self.TestDHCPHandler2.clean_up.assert_called_once_with()
self.TestDHCPHandler.apply.assert_called_with("203.0.113.1", "255.255.255.0")
@patch("blueman.main.NetConf.destroy_bridge")
def test_cleanup(self, destroy_bridge_mock: Mock, call_mock: Mock, _create_bridge_mock: Mock) -> None:
NetConf.apply_settings("203.0.113.1", "255.255.255.0", self.TestDHCPHandler2, False)
self.TestDHCPHandler2.clean_up.reset_mock()
NetConf.clean_up()
destroy_bridge_mock.assert_called_once_with("pan1")
self.TestDHCPHandler2.clean_up.assert_called_once_with()
self._check_iptables(call_mock, remove=True)
self.assertFalse(NetConf.locked("netconfig"))
self.assertFalse(NetConf.locked("iptables"))
|
