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
|
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_NO_MAIN
#include <boost/test/unit_test.hpp>
#include "iputils.hh"
#include "proxy-protocol.hh"
using namespace boost;
using std::string;
BOOST_AUTO_TEST_SUITE(test_proxy_protocol_cc)
#define BINARY(s) (std::string(s, sizeof(s) - 1))
#define PROXYMAGIC "\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A"
#define PROXYMAGICLEN sizeof(PROXYMAGIC)-1
static string proxymagic(PROXYMAGIC, PROXYMAGICLEN);
BOOST_AUTO_TEST_CASE(test_roundtrip) {
std::vector<ProxyProtocolValue> values;
string proxyheader;
bool ptcp = true;
ComboAddress src("65.66.67.68:18762"); // 18762 = 0x494a = "IJ"
ComboAddress dest("69.70.71.72:19276"); // 19276 = 0x4b4c = "KL"
proxyheader = makeProxyHeader(ptcp, src, dest, values);
BOOST_CHECK_EQUAL(proxyheader, BINARY(
PROXYMAGIC
"\x21" // version | command
"\x11" // ipv4=0x10 | TCP=0x1
"\x00\x0c" // 4 bytes IPv4 * 2 + 2 port numbers = 8 + 2 * 2 =12 = 0xc
"ABCD" // 65.66.67.68
"EFGH" // 69.70.71.72
"IJ" // src port
"KL" // dst port
));
bool proxy;
bool ptcp2;
ComboAddress src2, dest2;
BOOST_CHECK_EQUAL(parseProxyHeader(proxyheader, proxy, src2, dest2, ptcp2, values), 28);
BOOST_CHECK_EQUAL(proxy, true);
BOOST_CHECK_EQUAL(ptcp2, true);
BOOST_CHECK(src2 == src);
BOOST_CHECK(dest2 == dest);
}
BOOST_AUTO_TEST_CASE(test_local_proxy_header) {
auto payload = makeLocalProxyHeader();
BOOST_CHECK_EQUAL(payload, BINARY(
PROXYMAGIC
"\x20" // version | command
"\x00" // protocol family and address are set to 0
"\x00\x00" // no content
));
bool proxy;
bool tcp = false;
ComboAddress src, dest;
std::vector<ProxyProtocolValue> values;
BOOST_CHECK_EQUAL(parseProxyHeader(payload, proxy, src, dest, tcp, values), 16);
BOOST_CHECK_EQUAL(proxy, false);
BOOST_CHECK_EQUAL(tcp, false);
BOOST_CHECK_EQUAL(values.size(), 0U);
}
BOOST_AUTO_TEST_CASE(test_tlv_values_content_len_signedness) {
std::string largeValue;
/* this value will make the content length parsing fail in case of signedness mistake */
largeValue.resize(65128, 'A');
const std::vector<ProxyProtocolValue> values = { { "foo", 0 }, { largeValue, 255 }};
const bool tcp = false;
const ComboAddress src("[2001:db8::1]:0");
const ComboAddress dest("[::1]:65535");
const auto payload = makeProxyHeader(tcp, src, dest, values);
bool proxy;
bool tcp2;
ComboAddress src2;
ComboAddress dest2;
std::vector<ProxyProtocolValue> parsedValues;
BOOST_CHECK_EQUAL(parseProxyHeader(payload, proxy, src2, dest2, tcp2, parsedValues), 16 + 36 + 6 + 65131);
BOOST_CHECK_EQUAL(proxy, true);
BOOST_CHECK_EQUAL(tcp2, tcp);
BOOST_CHECK(src2 == src);
BOOST_CHECK(dest2 == dest);
BOOST_REQUIRE_EQUAL(parsedValues.size(), values.size());
for (size_t idx = 0; idx < values.size(); idx++) {
BOOST_CHECK_EQUAL(parsedValues.at(idx).type, values.at(idx).type);
BOOST_CHECK_EQUAL(parsedValues.at(idx).content, values.at(idx).content);
}
}
BOOST_AUTO_TEST_CASE(test_tlv_values_length_signedness) {
std::string largeValue;
/* this value will make the TLV length parsing fail in case of signedness mistake */
largeValue.resize(65000, 'A');
const std::vector<ProxyProtocolValue> values = { { "foo", 0 }, { largeValue, 255 }};
const bool tcp = false;
const ComboAddress src("[2001:db8::1]:0");
const ComboAddress dest("[::1]:65535");
const auto payload = makeProxyHeader(tcp, src, dest, values);
bool proxy;
bool tcp2;
ComboAddress src2;
ComboAddress dest2;
std::vector<ProxyProtocolValue> parsedValues;
BOOST_CHECK_EQUAL(parseProxyHeader(payload, proxy, src2, dest2, tcp2, parsedValues), 16 + 36 + 6 + 65003);
BOOST_CHECK_EQUAL(proxy, true);
BOOST_CHECK_EQUAL(tcp2, tcp);
BOOST_CHECK(src2 == src);
BOOST_CHECK(dest2 == dest);
BOOST_REQUIRE_EQUAL(parsedValues.size(), values.size());
for (size_t idx = 0; idx < values.size(); idx++) {
BOOST_CHECK_EQUAL(parsedValues.at(idx).type, values.at(idx).type);
BOOST_CHECK_EQUAL(parsedValues.at(idx).content, values.at(idx).content);
}
}
BOOST_AUTO_TEST_CASE(test_parsing_invalid_headers) {
const std::vector<ProxyProtocolValue> noValues;
const bool tcp = false;
const ComboAddress src("[2001:db8::1]:0");
const ComboAddress dest("[::1]:65535");
const auto payload = makeProxyHeader(tcp, src, dest, noValues);
bool proxy;
bool tcp2;
ComboAddress src2;
ComboAddress dest2;
std::vector<ProxyProtocolValue> values;
{
/* just checking that everything works */
BOOST_CHECK_EQUAL(parseProxyHeader(payload, proxy, src2, dest2, tcp2, values), 52);
BOOST_CHECK_EQUAL(proxy, true);
BOOST_CHECK_EQUAL(tcp2, tcp);
BOOST_CHECK(src2 == src);
BOOST_CHECK(dest2 == dest);
BOOST_CHECK_EQUAL(values.size(), 0U);
}
{
/* too short (not even full header) */
std::string truncated = payload;
truncated.resize(15);
BOOST_CHECK_EQUAL(parseProxyHeader(truncated, proxy, src2, dest2, tcp2, values), -1);
}
{
/* too short (missing address part) */
std::string truncated = payload;
truncated.resize(/* full header */ 16 + /* two IPv6s + port */ 36 - /* truncation */ 1);
BOOST_CHECK_EQUAL(parseProxyHeader(truncated, proxy, src2, dest2, tcp2, values), -1);
}
{
/* too short (missing TLV) */
values = { { "foo", 0 }, { "bar", 255 }} ;
const auto payloadWithValues = makeProxyHeader(tcp, src, dest, values);
std::string truncated = payloadWithValues;
truncated.resize(/* full header */ 16 + /* two IPv6s + port */ 36 + /* TLV 1 */ 6 + /* TLV 2 */ 6 - /* truncation */ 2);
BOOST_CHECK_EQUAL(parseProxyHeader(truncated, proxy, src2, dest2, tcp2, values), -2);
}
{
/* invalid magic */
std::string invalid = payload;
invalid.at(4) = 42;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
{
/* invalid version */
std::string invalid = payload;
invalid.at(12) = 0x10 | 0x01;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
{
/* invalid command */
std::string invalid = payload;
invalid.at(12) = 0x20 | 0x02;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
{
/* invalid family */
std::string invalid = payload;
invalid.at(13) = (0x04 << 4) | 0x01 /* STREAM */;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
{
/* invalid address */
std::string invalid = payload;
invalid.at(13) = (0x02 /* AF_INET */ << 4) | 0x03;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
{
/* TLV advertised len gets out of bounds */
values = { { "foo", 0 }, { "bar", 255 }} ;
const auto payloadWithValues = makeProxyHeader(tcp, src, dest, values);
std::string invalid = payloadWithValues;
/* full header (16) + two IPv6s + port (36) + TLV (6) TLV 2 (6) */
invalid.at(59) += 1;
BOOST_CHECK_EQUAL(parseProxyHeader(invalid, proxy, src2, dest2, tcp2, values), 0);
}
}
BOOST_AUTO_TEST_SUITE_END()
|
