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
|
//
// Copyright (C) 2013 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "shill/connection_info_reader.h"
#include <netinet/in.h>
#include <base/files/file_util.h>
#include <base/files/scoped_temp_dir.h>
#include <base/strings/stringprintf.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using base::FilePath;
using base::ScopedTempDir;
using base::StringPrintf;
using std::string;
using std::vector;
using testing::Return;
namespace shill {
namespace {
// TODO(benchan): Test IPv6 addresses.
const char* kConnectionInfoLines[] = {
"udp 17 30 src=192.168.1.1 dst=192.168.1.2 sport=9000 dport=53 "
"[UNREPLIED] src=192.168.1.2 dst=192.168.1.1 sport=53 dport=9000 use=2",
"tcp 6 299 ESTABLISHED src=192.168.2.1 dst=192.168.2.3 sport=8000 "
"dport=7000 src=192.168.2.3 dst=192.168.2.1 sport=7000 dport=8000 [ASSURED] "
"use=2",
};
} // namespace
class ConnectionInfoReaderUnderTest : public ConnectionInfoReader {
public:
// Mock out GetConnectionInfoFilePath to use a temporary created connection
// info file instead of the actual path in procfs (i.e.
// /proc/net/ip_conntrack).
MOCK_CONST_METHOD0(GetConnectionInfoFilePath, FilePath());
};
class ConnectionInfoReaderTest : public testing::Test {
protected:
IPAddress StringToIPv4Address(const string& address_string) {
IPAddress ip_address(IPAddress::kFamilyIPv4);
EXPECT_TRUE(ip_address.SetAddressFromString(address_string));
return ip_address;
}
IPAddress StringToIPv6Address(const string& address_string) {
IPAddress ip_address(IPAddress::kFamilyIPv6);
EXPECT_TRUE(ip_address.SetAddressFromString(address_string));
return ip_address;
}
void CreateConnectionInfoFile(const char** lines, size_t num_lines,
const FilePath& dir_path, FilePath* file_path) {
ASSERT_TRUE(base::CreateTemporaryFileInDir(dir_path, file_path));
for (size_t i = 0; i < num_lines; ++i) {
string line = lines[i];
line += '\n';
ASSERT_TRUE(base::AppendToFile(*file_path, line.data(), line.size()));
}
}
void ExpectConnectionInfoEqual(const ConnectionInfo& info1,
const ConnectionInfo& info2) {
EXPECT_EQ(info1.protocol(), info2.protocol());
EXPECT_EQ(info1.time_to_expire_seconds(), info2.time_to_expire_seconds());
EXPECT_EQ(info1.is_unreplied(), info2.is_unreplied());
EXPECT_TRUE(info1.original_source_ip_address()
.Equals(info2.original_source_ip_address()));
EXPECT_EQ(info1.original_source_port(), info2.original_source_port());
EXPECT_TRUE(info1.original_destination_ip_address()
.Equals(info2.original_destination_ip_address()));
EXPECT_EQ(info1.original_destination_port(),
info2.original_destination_port());
EXPECT_TRUE(info1.reply_source_ip_address()
.Equals(info2.reply_source_ip_address()));
EXPECT_EQ(info1.reply_source_port(), info2.reply_source_port());
EXPECT_TRUE(info1.reply_destination_ip_address()
.Equals(info2.reply_destination_ip_address()));
EXPECT_EQ(info1.reply_destination_port(), info2.reply_destination_port());
}
ConnectionInfoReaderUnderTest reader_;
};
TEST_F(ConnectionInfoReaderTest, LoadConnectionInfo) {
vector<ConnectionInfo> info_list;
ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
// Loading a non-existent file should fail.
FilePath info_file("/non-existent-file");
EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file));
EXPECT_FALSE(reader_.LoadConnectionInfo(&info_list));
// Loading an empty file should succeed.
CreateConnectionInfoFile(kConnectionInfoLines, 0, temp_dir.path(),
&info_file);
EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file));
EXPECT_TRUE(reader_.LoadConnectionInfo(&info_list));
EXPECT_TRUE(info_list.empty());
// Loading a non-empty file should succeed.
CreateConnectionInfoFile(kConnectionInfoLines,
arraysize(kConnectionInfoLines),
temp_dir.path(),
&info_file);
EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file));
EXPECT_TRUE(reader_.LoadConnectionInfo(&info_list));
EXPECT_EQ(arraysize(kConnectionInfoLines), info_list.size());
ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_UDP,
30,
true,
StringToIPv4Address("192.168.1.1"),
9000,
StringToIPv4Address("192.168.1.2"),
53,
StringToIPv4Address("192.168.1.2"),
53,
StringToIPv4Address("192.168.1.1"),
9000),
info_list[0]);
ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_TCP,
299,
false,
StringToIPv4Address("192.168.2.1"),
8000,
StringToIPv4Address("192.168.2.3"),
7000,
StringToIPv4Address("192.168.2.3"),
7000,
StringToIPv4Address("192.168.2.1"),
8000),
info_list[1]);
}
TEST_F(ConnectionInfoReaderTest, ParseConnectionInfo) {
ConnectionInfo info;
EXPECT_FALSE(reader_.ParseConnectionInfo("", &info));
EXPECT_TRUE(reader_.ParseConnectionInfo(kConnectionInfoLines[0], &info));
ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_UDP,
30,
true,
StringToIPv4Address("192.168.1.1"),
9000,
StringToIPv4Address("192.168.1.2"),
53,
StringToIPv4Address("192.168.1.2"),
53,
StringToIPv4Address("192.168.1.1"),
9000),
info);
}
TEST_F(ConnectionInfoReaderTest, ParseProtocol) {
int protocol = 0;
EXPECT_FALSE(reader_.ParseProtocol("", &protocol));
EXPECT_FALSE(reader_.ParseProtocol("a", &protocol));
EXPECT_FALSE(reader_.ParseProtocol("-1", &protocol));
EXPECT_FALSE(reader_.ParseProtocol(StringPrintf("%d", IPPROTO_MAX),
&protocol));
for (int i = 0; i < IPPROTO_MAX; ++i) {
EXPECT_TRUE(reader_.ParseProtocol(StringPrintf("%d", i), &protocol));
EXPECT_EQ(i, protocol);
}
}
TEST_F(ConnectionInfoReaderTest, ParseTimeToExpireSeconds) {
int64_t time_to_expire = 0;
EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("", &time_to_expire));
EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("a", &time_to_expire));
EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("-1", &time_to_expire));
EXPECT_TRUE(reader_.ParseTimeToExpireSeconds("100", &time_to_expire));
EXPECT_EQ(100, time_to_expire);
}
TEST_F(ConnectionInfoReaderTest, ParseIPAddress) {
IPAddress ip_address(IPAddress::kFamilyUnknown);
bool is_source = false;
EXPECT_FALSE(reader_.ParseIPAddress("", &ip_address, &is_source));
EXPECT_FALSE(reader_.ParseIPAddress("abc", &ip_address, &is_source));
EXPECT_FALSE(reader_.ParseIPAddress("src=", &ip_address, &is_source));
EXPECT_FALSE(reader_.ParseIPAddress("src=abc", &ip_address, &is_source));
EXPECT_FALSE(reader_.ParseIPAddress("dst=", &ip_address, &is_source));
EXPECT_FALSE(reader_.ParseIPAddress("dst=abc", &ip_address, &is_source));
EXPECT_TRUE(reader_.ParseIPAddress("src=192.168.1.1",
&ip_address, &is_source));
EXPECT_TRUE(ip_address.Equals(StringToIPv4Address("192.168.1.1")));
EXPECT_TRUE(is_source);
EXPECT_TRUE(reader_.ParseIPAddress("dst=192.168.1.2",
&ip_address, &is_source));
EXPECT_TRUE(ip_address.Equals(StringToIPv4Address("192.168.1.2")));
EXPECT_FALSE(is_source);
}
TEST_F(ConnectionInfoReaderTest, ParsePort) {
uint16_t port = 0;
bool is_source = false;
EXPECT_FALSE(reader_.ParsePort("", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("a", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("0", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("sport=", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("sport=a", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("sport=-1", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("sport=65536", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("dport=", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("dport=a", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("dport=-1", &port, &is_source));
EXPECT_FALSE(reader_.ParsePort("dport=65536", &port, &is_source));
EXPECT_TRUE(reader_.ParsePort("sport=53", &port, &is_source));
EXPECT_EQ(53, port);
EXPECT_TRUE(is_source);
EXPECT_TRUE(reader_.ParsePort("dport=80", &port, &is_source));
EXPECT_EQ(80, port);
EXPECT_FALSE(is_source);
}
} // namespace shill
|
