Line data Source code
1 : /*
2 : *
3 : * Copyright 2015, Google Inc.
4 : * All rights reserved.
5 : *
6 : * Redistribution and use in source and binary forms, with or without
7 : * modification, are permitted provided that the following conditions are
8 : * met:
9 : *
10 : * * Redistributions of source code must retain the above copyright
11 : * notice, this list of conditions and the following disclaimer.
12 : * * Redistributions in binary form must reproduce the above
13 : * copyright notice, this list of conditions and the following disclaimer
14 : * in the documentation and/or other materials provided with the
15 : * distribution.
16 : * * Neither the name of Google Inc. nor the names of its
17 : * contributors may be used to endorse or promote products derived from
18 : * this software without specific prior written permission.
19 : *
20 : * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 : * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 : * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 : * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 : * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 : * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 : * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 : *
32 : */
33 :
34 : #include "src/core/iomgr/sockaddr_utils.h"
35 :
36 : #include <errno.h>
37 : #include <string.h>
38 :
39 : #include <grpc/support/alloc.h>
40 : #include <grpc/support/log.h>
41 : #include <grpc/support/port_platform.h>
42 : #include "test/core/util/test_config.h"
43 :
44 4 : static struct sockaddr_in make_addr4(const gpr_uint8 *data, size_t data_len) {
45 : struct sockaddr_in addr4;
46 4 : memset(&addr4, 0, sizeof(addr4));
47 4 : addr4.sin_family = AF_INET;
48 4 : GPR_ASSERT(data_len == sizeof(addr4.sin_addr.s_addr));
49 4 : memcpy(&addr4.sin_addr.s_addr, data, data_len);
50 4 : addr4.sin_port = htons(12345);
51 4 : return addr4;
52 : }
53 :
54 8 : static struct sockaddr_in6 make_addr6(const gpr_uint8 *data, size_t data_len) {
55 : struct sockaddr_in6 addr6;
56 8 : memset(&addr6, 0, sizeof(addr6));
57 8 : addr6.sin6_family = AF_INET6;
58 8 : GPR_ASSERT(data_len == sizeof(addr6.sin6_addr.s6_addr));
59 8 : memcpy(&addr6.sin6_addr.s6_addr, data, data_len);
60 8 : addr6.sin6_port = htons(12345);
61 8 : return addr6;
62 : }
63 :
64 : static const gpr_uint8 kMapped[] = {0, 0, 0, 0, 0, 0, 0, 0,
65 : 0, 0, 0xff, 0xff, 192, 0, 2, 1};
66 :
67 : static const gpr_uint8 kNotQuiteMapped[] = {0, 0, 0, 0, 0, 0, 0, 0,
68 : 0, 0, 0xff, 0xfe, 192, 0, 2, 99};
69 : static const gpr_uint8 kIPv4[] = {192, 0, 2, 1};
70 :
71 : static const gpr_uint8 kIPv6[] = {0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
72 : 0, 0, 0, 0, 0, 0, 0, 1};
73 :
74 1 : static void test_sockaddr_is_v4mapped(void) {
75 : struct sockaddr_in input4;
76 : struct sockaddr_in6 input6;
77 : struct sockaddr_in output4;
78 : struct sockaddr_in expect4;
79 :
80 1 : gpr_log(GPR_INFO, "%s", "test_sockaddr_is_v4mapped");
81 :
82 : /* v4mapped input should succeed. */
83 1 : input6 = make_addr6(kMapped, sizeof(kMapped));
84 1 : GPR_ASSERT(grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL));
85 1 : GPR_ASSERT(
86 : grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4));
87 1 : expect4 = make_addr4(kIPv4, sizeof(kIPv4));
88 1 : GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0);
89 :
90 : /* Non-v4mapped input should fail. */
91 1 : input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped));
92 1 : GPR_ASSERT(
93 : !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL));
94 1 : GPR_ASSERT(
95 : !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4));
96 : /* Output is unchanged. */
97 1 : GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0);
98 :
99 : /* Plain IPv4 input should also fail. */
100 1 : input4 = make_addr4(kIPv4, sizeof(kIPv4));
101 1 : GPR_ASSERT(
102 : !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input4, NULL));
103 1 : }
104 :
105 1 : static void test_sockaddr_to_v4mapped(void) {
106 : struct sockaddr_in input4;
107 : struct sockaddr_in6 input6;
108 : struct sockaddr_in6 output6;
109 : struct sockaddr_in6 expect6;
110 :
111 1 : gpr_log(GPR_INFO, "%s", "test_sockaddr_to_v4mapped");
112 :
113 : /* IPv4 input should succeed. */
114 1 : input4 = make_addr4(kIPv4, sizeof(kIPv4));
115 1 : GPR_ASSERT(
116 : grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input4, &output6));
117 1 : expect6 = make_addr6(kMapped, sizeof(kMapped));
118 1 : GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0);
119 :
120 : /* IPv6 input should fail. */
121 1 : input6 = make_addr6(kIPv6, sizeof(kIPv6));
122 1 : GPR_ASSERT(
123 : !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6));
124 : /* Output is unchanged. */
125 1 : GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0);
126 :
127 : /* Already-v4mapped input should also fail. */
128 1 : input6 = make_addr6(kMapped, sizeof(kMapped));
129 1 : GPR_ASSERT(
130 : !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6));
131 1 : }
132 :
133 1 : static void test_sockaddr_is_wildcard(void) {
134 : struct sockaddr_in wild4;
135 : struct sockaddr_in6 wild6;
136 : struct sockaddr_in6 wild_mapped;
137 : struct sockaddr dummy;
138 : int port;
139 :
140 1 : gpr_log(GPR_INFO, "%s", "test_sockaddr_is_wildcard");
141 :
142 : /* Generate wildcards. */
143 1 : grpc_sockaddr_make_wildcards(555, &wild4, &wild6);
144 1 : GPR_ASSERT(
145 : grpc_sockaddr_to_v4mapped((const struct sockaddr *)&wild4, &wild_mapped));
146 :
147 : /* Test 0.0.0.0:555 */
148 1 : port = -1;
149 1 : GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port));
150 1 : GPR_ASSERT(port == 555);
151 1 : memset(&wild4.sin_addr.s_addr, 0xbd, 1);
152 1 : GPR_ASSERT(
153 : !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port));
154 :
155 : /* Test [::]:555 */
156 1 : port = -1;
157 1 : GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port));
158 1 : GPR_ASSERT(port == 555);
159 1 : memset(&wild6.sin6_addr.s6_addr, 0xbd, 1);
160 1 : GPR_ASSERT(
161 : !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port));
162 :
163 : /* Test [::ffff:0.0.0.0]:555 */
164 1 : port = -1;
165 1 : GPR_ASSERT(
166 : grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port));
167 1 : GPR_ASSERT(port == 555);
168 1 : memset(&wild_mapped.sin6_addr.s6_addr, 0xbd, 1);
169 1 : GPR_ASSERT(
170 : !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port));
171 :
172 : /* Test AF_UNSPEC. */
173 1 : port = -1;
174 1 : memset(&dummy, 0, sizeof(dummy));
175 1 : GPR_ASSERT(!grpc_sockaddr_is_wildcard(&dummy, &port));
176 1 : GPR_ASSERT(port == -1);
177 1 : }
178 :
179 10 : static void expect_sockaddr_str(const char *expected, void *addr,
180 : int normalize) {
181 : int result;
182 : char *str;
183 10 : gpr_log(GPR_INFO, " expect_sockaddr_str(%s)", expected);
184 10 : result = grpc_sockaddr_to_string(&str, (struct sockaddr *)addr, normalize);
185 10 : GPR_ASSERT(str != NULL);
186 10 : GPR_ASSERT(result >= 0);
187 10 : GPR_ASSERT((size_t)result == strlen(str));
188 10 : GPR_ASSERT(strcmp(expected, str) == 0);
189 10 : gpr_free(str);
190 10 : }
191 :
192 4 : static void expect_sockaddr_uri(const char *expected, void *addr) {
193 : char *str;
194 4 : gpr_log(GPR_INFO, " expect_sockaddr_uri(%s)", expected);
195 4 : str = grpc_sockaddr_to_uri((struct sockaddr *)addr);
196 4 : GPR_ASSERT(str != NULL);
197 4 : GPR_ASSERT(strcmp(expected, str) == 0);
198 4 : gpr_free(str);
199 4 : }
200 :
201 1 : static void test_sockaddr_to_string(void) {
202 : struct sockaddr_in input4;
203 : struct sockaddr_in6 input6;
204 : struct sockaddr dummy;
205 :
206 1 : gpr_log(GPR_INFO, "%s", "test_sockaddr_to_string");
207 :
208 1 : errno = 0x7EADBEEF;
209 :
210 1 : input4 = make_addr4(kIPv4, sizeof(kIPv4));
211 1 : expect_sockaddr_str("192.0.2.1:12345", &input4, 0);
212 1 : expect_sockaddr_str("192.0.2.1:12345", &input4, 1);
213 1 : expect_sockaddr_uri("ipv4:192.0.2.1:12345", &input4);
214 :
215 1 : input6 = make_addr6(kIPv6, sizeof(kIPv6));
216 1 : expect_sockaddr_str("[2001:db8::1]:12345", &input6, 0);
217 1 : expect_sockaddr_str("[2001:db8::1]:12345", &input6, 1);
218 1 : expect_sockaddr_uri("ipv6:[2001:db8::1]:12345", &input6);
219 :
220 1 : input6 = make_addr6(kMapped, sizeof(kMapped));
221 1 : expect_sockaddr_str("[::ffff:192.0.2.1]:12345", &input6, 0);
222 1 : expect_sockaddr_str("192.0.2.1:12345", &input6, 1);
223 1 : expect_sockaddr_uri("ipv4:192.0.2.1:12345", &input6);
224 :
225 1 : input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped));
226 1 : expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 0);
227 1 : expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 1);
228 1 : expect_sockaddr_uri("ipv6:[::fffe:c000:263]:12345", &input6);
229 :
230 1 : memset(&dummy, 0, sizeof(dummy));
231 1 : dummy.sa_family = 123;
232 1 : expect_sockaddr_str("(sockaddr family=123)", &dummy, 0);
233 1 : expect_sockaddr_str("(sockaddr family=123)", &dummy, 1);
234 1 : GPR_ASSERT(grpc_sockaddr_to_uri(&dummy) == NULL);
235 :
236 1 : GPR_ASSERT(errno == 0x7EADBEEF);
237 1 : }
238 :
239 1 : int main(int argc, char **argv) {
240 1 : grpc_test_init(argc, argv);
241 :
242 1 : test_sockaddr_is_v4mapped();
243 1 : test_sockaddr_to_v4mapped();
244 1 : test_sockaddr_is_wildcard();
245 1 : test_sockaddr_to_string();
246 :
247 1 : return 0;
248 : }
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