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190b9a03 | 1 | /* |
a28d06f3 | 2 | * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. |
190b9a03 PY |
3 | * Copyright 2017 BaishanCloud. All rights reserved. |
4 | * | |
909f1a2e | 5 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
190b9a03 PY |
6 | * this file except in compliance with the License. You can obtain a copy |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
9 | */ | |
10 | ||
11 | #include <string.h> | |
12 | ||
13 | #include <openssl/opensslconf.h> | |
14 | #include <openssl/bio.h> | |
15 | #include <openssl/crypto.h> | |
16 | #include <openssl/evp.h> | |
17 | #include <openssl/ssl.h> | |
18 | #include <openssl/err.h> | |
19 | #include <time.h> | |
20 | ||
0d345f0e | 21 | #include "internal/packet.h" |
190b9a03 PY |
22 | |
23 | #include "testutil.h" | |
176db6dc | 24 | #include "internal/nelem.h" |
20f8bc72 | 25 | #include "helpers/ssltestlib.h" |
190b9a03 PY |
26 | |
27 | #define CLIENT_VERSION_LEN 2 | |
28 | ||
29 | static const char *host = "dummy-host"; | |
30 | ||
f01344cb MC |
31 | static char *cert = NULL; |
32 | static char *privkey = NULL; | |
33 | ||
a763ca11 MC |
34 | #if defined(OPENSSL_NO_TLS1_3) || \ |
35 | (defined(OPENSSL_NO_EC) && defined(OPENSSL_NO_DH)) | |
36 | static int maxversion = TLS1_2_VERSION; | |
37 | #else | |
38 | static int maxversion = 0; | |
39 | #endif | |
40 | ||
190b9a03 PY |
41 | static int get_sni_from_client_hello(BIO *bio, char **sni) |
42 | { | |
43 | long len; | |
44 | unsigned char *data; | |
72962d02 | 45 | PACKET pkt, pkt2, pkt3, pkt4, pkt5; |
190b9a03 PY |
46 | unsigned int servname_type = 0, type = 0; |
47 | int ret = 0; | |
48 | ||
72962d02 P |
49 | memset(&pkt, 0, sizeof(pkt)); |
50 | memset(&pkt2, 0, sizeof(pkt2)); | |
51 | memset(&pkt3, 0, sizeof(pkt3)); | |
52 | memset(&pkt4, 0, sizeof(pkt4)); | |
53 | memset(&pkt5, 0, sizeof(pkt5)); | |
54 | ||
66325793 P |
55 | if (!TEST_long_ge(len = BIO_get_mem_data(bio, (char **)&data), 0) |
56 | || !TEST_true(PACKET_buf_init(&pkt, data, len)) | |
190b9a03 PY |
57 | /* Skip the record header */ |
58 | || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH) | |
59 | /* Skip the handshake message header */ | |
60 | || !TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH)) | |
61 | /* Skip client version and random */ | |
62 | || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN | |
63 | + SSL3_RANDOM_SIZE)) | |
64 | /* Skip session id */ | |
65 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
66 | /* Skip ciphers */ | |
67 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2)) | |
68 | /* Skip compression */ | |
69 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
70 | /* Extensions len */ | |
71 | || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2))) | |
72 | goto end; | |
73 | ||
74 | /* Loop through all extensions for SNI */ | |
75 | while (PACKET_remaining(&pkt2)) { | |
76 | if (!TEST_true(PACKET_get_net_2(&pkt2, &type)) | |
77 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3))) | |
78 | goto end; | |
79 | if (type == TLSEXT_TYPE_server_name) { | |
80 | if (!TEST_true(PACKET_get_length_prefixed_2(&pkt3, &pkt4)) | |
81 | || !TEST_uint_ne(PACKET_remaining(&pkt4), 0) | |
82 | || !TEST_true(PACKET_get_1(&pkt4, &servname_type)) | |
83 | || !TEST_uint_eq(servname_type, TLSEXT_NAMETYPE_host_name) | |
84 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt4, &pkt5)) | |
85 | || !TEST_uint_le(PACKET_remaining(&pkt5), TLSEXT_MAXLEN_host_name) | |
86 | || !TEST_false(PACKET_contains_zero_byte(&pkt5)) | |
87 | || !TEST_true(PACKET_strndup(&pkt5, sni))) | |
88 | goto end; | |
89 | ret = 1; | |
90 | goto end; | |
91 | } | |
92 | } | |
93 | end: | |
94 | return ret; | |
95 | } | |
96 | ||
31a80694 | 97 | static int client_setup_sni_before_state(void) |
190b9a03 PY |
98 | { |
99 | SSL_CTX *ctx; | |
100 | SSL *con = NULL; | |
101 | BIO *rbio; | |
102 | BIO *wbio; | |
103 | char *hostname = NULL; | |
104 | int ret = 0; | |
105 | ||
106 | /* use TLS_method to blur 'side' */ | |
107 | ctx = SSL_CTX_new(TLS_method()); | |
108 | if (!TEST_ptr(ctx)) | |
109 | goto end; | |
110 | ||
a763ca11 MC |
111 | if (maxversion > 0 |
112 | && !TEST_true(SSL_CTX_set_max_proto_version(ctx, maxversion))) | |
113 | goto end; | |
114 | ||
190b9a03 PY |
115 | con = SSL_new(ctx); |
116 | if (!TEST_ptr(con)) | |
117 | goto end; | |
118 | ||
119 | /* set SNI before 'client side' is set */ | |
120 | SSL_set_tlsext_host_name(con, host); | |
121 | ||
122 | rbio = BIO_new(BIO_s_mem()); | |
123 | wbio = BIO_new(BIO_s_mem()); | |
124 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { | |
125 | BIO_free(rbio); | |
126 | BIO_free(wbio); | |
127 | goto end; | |
128 | } | |
129 | ||
130 | SSL_set_bio(con, rbio, wbio); | |
131 | ||
132 | if (!TEST_int_le(SSL_connect(con), 0)) | |
133 | /* This shouldn't succeed because we don't have a server! */ | |
134 | goto end; | |
135 | if (!TEST_true(get_sni_from_client_hello(wbio, &hostname))) | |
136 | /* no SNI in client hello */ | |
137 | goto end; | |
138 | if (!TEST_str_eq(hostname, host)) | |
139 | /* incorrect SNI value */ | |
140 | goto end; | |
141 | ret = 1; | |
142 | end: | |
143 | OPENSSL_free(hostname); | |
144 | SSL_free(con); | |
145 | SSL_CTX_free(ctx); | |
146 | return ret; | |
147 | } | |
148 | ||
31a80694 | 149 | static int client_setup_sni_after_state(void) |
190b9a03 PY |
150 | { |
151 | SSL_CTX *ctx; | |
152 | SSL *con = NULL; | |
153 | BIO *rbio; | |
154 | BIO *wbio; | |
155 | char *hostname = NULL; | |
156 | int ret = 0; | |
157 | ||
158 | /* use TLS_method to blur 'side' */ | |
159 | ctx = SSL_CTX_new(TLS_method()); | |
160 | if (!TEST_ptr(ctx)) | |
161 | goto end; | |
162 | ||
a763ca11 MC |
163 | if (maxversion > 0 |
164 | && !TEST_true(SSL_CTX_set_max_proto_version(ctx, maxversion))) | |
165 | goto end; | |
166 | ||
190b9a03 PY |
167 | con = SSL_new(ctx); |
168 | if (!TEST_ptr(con)) | |
169 | goto end; | |
170 | ||
171 | rbio = BIO_new(BIO_s_mem()); | |
172 | wbio = BIO_new(BIO_s_mem()); | |
173 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { | |
174 | BIO_free(rbio); | |
175 | BIO_free(wbio); | |
176 | goto end; | |
177 | } | |
178 | ||
179 | SSL_set_bio(con, rbio, wbio); | |
180 | SSL_set_connect_state(con); | |
181 | ||
182 | /* set SNI after 'client side' is set */ | |
183 | SSL_set_tlsext_host_name(con, host); | |
184 | ||
185 | if (!TEST_int_le(SSL_connect(con), 0)) | |
186 | /* This shouldn't succeed because we don't have a server! */ | |
187 | goto end; | |
188 | if (!TEST_true(get_sni_from_client_hello(wbio, &hostname))) | |
189 | /* no SNI in client hello */ | |
190 | goto end; | |
191 | if (!TEST_str_eq(hostname, host)) | |
192 | /* incorrect SNI value */ | |
193 | goto end; | |
194 | ret = 1; | |
195 | end: | |
196 | OPENSSL_free(hostname); | |
197 | SSL_free(con); | |
198 | SSL_CTX_free(ctx); | |
199 | return ret; | |
200 | } | |
201 | ||
31a80694 | 202 | static int server_setup_sni(void) |
190b9a03 | 203 | { |
f01344cb MC |
204 | SSL_CTX *cctx = NULL, *sctx = NULL; |
205 | SSL *clientssl = NULL, *serverssl = NULL; | |
206 | int testresult = 0; | |
190b9a03 | 207 | |
5e30f2fd | 208 | if (!TEST_true(create_ssl_ctx_pair(NULL, TLS_server_method(), |
f01344cb | 209 | TLS_client_method(), |
5c587fb6 | 210 | TLS1_VERSION, 0, |
f01344cb MC |
211 | &sctx, &cctx, cert, privkey)) |
212 | || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, | |
213 | NULL, NULL))) | |
190b9a03 | 214 | goto end; |
190b9a03 PY |
215 | |
216 | /* set SNI at server side */ | |
f01344cb | 217 | SSL_set_tlsext_host_name(serverssl, host); |
190b9a03 | 218 | |
f01344cb | 219 | if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))) |
190b9a03 | 220 | goto end; |
f01344cb MC |
221 | |
222 | if (!TEST_ptr_null(SSL_get_servername(serverssl, | |
223 | TLSEXT_NAMETYPE_host_name))) { | |
224 | /* SNI should have been cleared during handshake */ | |
190b9a03 | 225 | goto end; |
f01344cb | 226 | } |
df443918 | 227 | |
f01344cb | 228 | testresult = 1; |
190b9a03 | 229 | end: |
f01344cb MC |
230 | SSL_free(serverssl); |
231 | SSL_free(clientssl); | |
232 | SSL_CTX_free(sctx); | |
233 | SSL_CTX_free(cctx); | |
234 | ||
235 | return testresult; | |
190b9a03 PY |
236 | } |
237 | ||
238 | typedef int (*sni_test_fn)(void); | |
239 | ||
240 | static sni_test_fn sni_test_fns[3] = { | |
241 | client_setup_sni_before_state, | |
242 | client_setup_sni_after_state, | |
243 | server_setup_sni | |
244 | }; | |
245 | ||
246 | static int test_servername(int test) | |
247 | { | |
248 | /* | |
249 | * For each test set up an SSL_CTX and SSL and see | |
250 | * what SNI behaves. | |
251 | */ | |
252 | return sni_test_fns[test](); | |
253 | } | |
254 | ||
255 | int setup_tests(void) | |
256 | { | |
8d242823 MC |
257 | if (!test_skip_common_options()) { |
258 | TEST_error("Error parsing test options\n"); | |
259 | return 0; | |
260 | } | |
261 | ||
f01344cb MC |
262 | if (!TEST_ptr(cert = test_get_argument(0)) |
263 | || !TEST_ptr(privkey = test_get_argument(1))) | |
264 | return 0; | |
265 | ||
190b9a03 PY |
266 | ADD_ALL_TESTS(test_servername, OSSL_NELEM(sni_test_fns)); |
267 | return 1; | |
268 | } |