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
|
import io
import os
from socket import AF_INET, AF_INET6
from unittest.mock import Mock, patch, call
import pytest
import sshuttle.firewall
def setup_daemon():
stdin = io.StringIO(u"""ROUTES
{inet},24,0,1.2.3.0,8000,9000
{inet},32,1,1.2.3.66,8080,8080
{inet6},64,0,2404:6800:4004:80c::,0,0
{inet6},128,1,2404:6800:4004:80c::101f,80,80
NSLIST
{inet},1.2.3.33
{inet6},2404:6800:4004:80c::33
PORTS 1024,1025,1026,1027
GO 1 - 0x01 12345
HOST 1.2.3.3,existing
""".format(inet=AF_INET, inet6=AF_INET6))
stdout = Mock()
return stdin, stdout
def test_rewrite_etc_hosts(tmpdir):
orig_hosts = tmpdir.join("hosts.orig")
orig_hosts.write("1.2.3.3 existing\n")
new_hosts = tmpdir.join("hosts")
orig_hosts.copy(new_hosts)
hostmap = {
'myhost': '1.2.3.4',
'myotherhost': '1.2.3.5',
}
with patch('sshuttle.firewall.HOSTSFILE', new=str(new_hosts)):
sshuttle.firewall.rewrite_etc_hosts(hostmap, 10)
with new_hosts.open() as f:
line = f.readline()
s = line.split()
assert s == ['1.2.3.3', 'existing']
line = f.readline()
s = line.split()
assert s == ['1.2.3.4', 'myhost',
'#', 'sshuttle-firewall-10', 'AUTOCREATED']
line = f.readline()
s = line.split()
assert s == ['1.2.3.5', 'myotherhost',
'#', 'sshuttle-firewall-10', 'AUTOCREATED']
line = f.readline()
assert line == ""
with patch('sshuttle.firewall.HOSTSFILE', new=str(new_hosts)):
sshuttle.firewall.restore_etc_hosts(hostmap, 10)
assert orig_hosts.computehash() == new_hosts.computehash()
@patch('os.link')
@patch('os.rename')
def test_rewrite_etc_hosts_no_overwrite(mock_link, mock_rename, tmpdir):
mock_link.side_effect = OSError
mock_rename.side_effect = OSError
with pytest.raises(OSError):
os.link('/test_from', '/test_to')
with pytest.raises(OSError):
os.rename('/test_from', '/test_to')
test_rewrite_etc_hosts(tmpdir)
def test_subnet_weight():
subnets = [
(AF_INET, 16, 0, '192.168.0.0', 0, 0),
(AF_INET, 24, 0, '192.168.69.0', 0, 0),
(AF_INET, 32, 0, '192.168.69.70', 0, 0),
(AF_INET, 32, 1, '192.168.69.70', 0, 0),
(AF_INET, 32, 1, '192.168.69.70', 80, 80),
(AF_INET, 0, 1, '0.0.0.0', 0, 0),
(AF_INET, 0, 1, '0.0.0.0', 8000, 9000),
(AF_INET, 0, 1, '0.0.0.0', 8000, 8500),
(AF_INET, 0, 1, '0.0.0.0', 8000, 8000),
(AF_INET, 0, 1, '0.0.0.0', 400, 450)
]
subnets_sorted = [
(AF_INET, 32, 1, '192.168.69.70', 80, 80),
(AF_INET, 0, 1, '0.0.0.0', 8000, 8000),
(AF_INET, 0, 1, '0.0.0.0', 400, 450),
(AF_INET, 0, 1, '0.0.0.0', 8000, 8500),
(AF_INET, 0, 1, '0.0.0.0', 8000, 9000),
(AF_INET, 32, 1, '192.168.69.70', 0, 0),
(AF_INET, 32, 0, '192.168.69.70', 0, 0),
(AF_INET, 24, 0, '192.168.69.0', 0, 0),
(AF_INET, 16, 0, '192.168.0.0', 0, 0),
(AF_INET, 0, 1, '0.0.0.0', 0, 0)
]
assert subnets_sorted == sorted(subnets,
key=sshuttle.firewall.subnet_weight,
reverse=True)
@patch('sshuttle.firewall.rewrite_etc_hosts')
@patch('sshuttle.firewall.setup_daemon')
@patch('sshuttle.firewall.get_method')
def test_main(mock_get_method, mock_setup_daemon, mock_rewrite_etc_hosts):
stdin, stdout = setup_daemon()
mock_setup_daemon.return_value = stdin, stdout
mock_get_method("not_auto").name = "test"
mock_get_method.reset_mock()
sshuttle.firewall.main("not_auto", False)
assert mock_rewrite_etc_hosts.mock_calls == [
call({'1.2.3.3': 'existing'}, 1024),
call({}, 1024),
]
assert stdout.mock_calls == [
call.write('READY test\n'),
call.flush(),
call.write('STARTED\n'),
call.flush()
]
assert mock_setup_daemon.mock_calls == [call()]
assert mock_get_method.mock_calls == [
call('not_auto'),
call().is_supported(),
call().is_supported().__bool__(),
call().setup_firewall(
1024, 1026,
[(AF_INET6, u'2404:6800:4004:80c::33')],
AF_INET6,
[(AF_INET6, 64, False, u'2404:6800:4004:80c::', 0, 0),
(AF_INET6, 128, True, u'2404:6800:4004:80c::101f', 80, 80)],
True,
None,
'0x01'),
call().setup_firewall(
1025, 1027,
[(AF_INET, u'1.2.3.33')],
AF_INET,
[(AF_INET, 24, False, u'1.2.3.0', 8000, 9000),
(AF_INET, 32, True, u'1.2.3.66', 8080, 8080)],
True,
None,
'0x01'),
call().restore_firewall(1024, AF_INET6, True, None),
call().restore_firewall(1025, AF_INET, True, None),
]
|
