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190b9a03 | 1 | /* |
72a7a702 | 2 | * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved. |
190b9a03 PY |
3 | * Copyright 2017 BaishanCloud. All rights reserved. |
4 | * | |
5 | * Licensed under the OpenSSL license (the "License"). You may not use | |
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 | ||
21 | #include "../ssl/packet_locl.h" | |
22 | ||
23 | #include "testutil.h" | |
176db6dc | 24 | #include "internal/nelem.h" |
f01344cb | 25 | #include "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 | ||
190b9a03 PY |
34 | static int get_sni_from_client_hello(BIO *bio, char **sni) |
35 | { | |
36 | long len; | |
37 | unsigned char *data; | |
38 | PACKET pkt = {0}, pkt2 = {0}, pkt3 = {0}, pkt4 = {0}, pkt5 = {0}; | |
39 | unsigned int servname_type = 0, type = 0; | |
40 | int ret = 0; | |
41 | ||
42 | len = BIO_get_mem_data(bio, (char **)&data); | |
43 | if (!TEST_true(PACKET_buf_init(&pkt, data, len)) | |
44 | /* Skip the record header */ | |
45 | || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH) | |
46 | /* Skip the handshake message header */ | |
47 | || !TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH)) | |
48 | /* Skip client version and random */ | |
49 | || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN | |
50 | + SSL3_RANDOM_SIZE)) | |
51 | /* Skip session id */ | |
52 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
53 | /* Skip ciphers */ | |
54 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2)) | |
55 | /* Skip compression */ | |
56 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
57 | /* Extensions len */ | |
58 | || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2))) | |
59 | goto end; | |
60 | ||
61 | /* Loop through all extensions for SNI */ | |
62 | while (PACKET_remaining(&pkt2)) { | |
63 | if (!TEST_true(PACKET_get_net_2(&pkt2, &type)) | |
64 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3))) | |
65 | goto end; | |
66 | if (type == TLSEXT_TYPE_server_name) { | |
67 | if (!TEST_true(PACKET_get_length_prefixed_2(&pkt3, &pkt4)) | |
68 | || !TEST_uint_ne(PACKET_remaining(&pkt4), 0) | |
69 | || !TEST_true(PACKET_get_1(&pkt4, &servname_type)) | |
70 | || !TEST_uint_eq(servname_type, TLSEXT_NAMETYPE_host_name) | |
71 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt4, &pkt5)) | |
72 | || !TEST_uint_le(PACKET_remaining(&pkt5), TLSEXT_MAXLEN_host_name) | |
73 | || !TEST_false(PACKET_contains_zero_byte(&pkt5)) | |
74 | || !TEST_true(PACKET_strndup(&pkt5, sni))) | |
75 | goto end; | |
76 | ret = 1; | |
77 | goto end; | |
78 | } | |
79 | } | |
80 | end: | |
81 | return ret; | |
82 | } | |
83 | ||
31a80694 | 84 | static int client_setup_sni_before_state(void) |
190b9a03 PY |
85 | { |
86 | SSL_CTX *ctx; | |
87 | SSL *con = NULL; | |
88 | BIO *rbio; | |
89 | BIO *wbio; | |
90 | char *hostname = NULL; | |
91 | int ret = 0; | |
92 | ||
93 | /* use TLS_method to blur 'side' */ | |
94 | ctx = SSL_CTX_new(TLS_method()); | |
95 | if (!TEST_ptr(ctx)) | |
96 | goto end; | |
97 | ||
98 | con = SSL_new(ctx); | |
99 | if (!TEST_ptr(con)) | |
100 | goto end; | |
101 | ||
102 | /* set SNI before 'client side' is set */ | |
103 | SSL_set_tlsext_host_name(con, host); | |
104 | ||
105 | rbio = BIO_new(BIO_s_mem()); | |
106 | wbio = BIO_new(BIO_s_mem()); | |
107 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { | |
108 | BIO_free(rbio); | |
109 | BIO_free(wbio); | |
110 | goto end; | |
111 | } | |
112 | ||
113 | SSL_set_bio(con, rbio, wbio); | |
114 | ||
115 | if (!TEST_int_le(SSL_connect(con), 0)) | |
116 | /* This shouldn't succeed because we don't have a server! */ | |
117 | goto end; | |
118 | if (!TEST_true(get_sni_from_client_hello(wbio, &hostname))) | |
119 | /* no SNI in client hello */ | |
120 | goto end; | |
121 | if (!TEST_str_eq(hostname, host)) | |
122 | /* incorrect SNI value */ | |
123 | goto end; | |
124 | ret = 1; | |
125 | end: | |
126 | OPENSSL_free(hostname); | |
127 | SSL_free(con); | |
128 | SSL_CTX_free(ctx); | |
129 | return ret; | |
130 | } | |
131 | ||
31a80694 | 132 | static int client_setup_sni_after_state(void) |
190b9a03 PY |
133 | { |
134 | SSL_CTX *ctx; | |
135 | SSL *con = NULL; | |
136 | BIO *rbio; | |
137 | BIO *wbio; | |
138 | char *hostname = NULL; | |
139 | int ret = 0; | |
140 | ||
141 | /* use TLS_method to blur 'side' */ | |
142 | ctx = SSL_CTX_new(TLS_method()); | |
143 | if (!TEST_ptr(ctx)) | |
144 | goto end; | |
145 | ||
146 | con = SSL_new(ctx); | |
147 | if (!TEST_ptr(con)) | |
148 | goto end; | |
149 | ||
150 | rbio = BIO_new(BIO_s_mem()); | |
151 | wbio = BIO_new(BIO_s_mem()); | |
152 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { | |
153 | BIO_free(rbio); | |
154 | BIO_free(wbio); | |
155 | goto end; | |
156 | } | |
157 | ||
158 | SSL_set_bio(con, rbio, wbio); | |
159 | SSL_set_connect_state(con); | |
160 | ||
161 | /* set SNI after 'client side' is set */ | |
162 | SSL_set_tlsext_host_name(con, host); | |
163 | ||
164 | if (!TEST_int_le(SSL_connect(con), 0)) | |
165 | /* This shouldn't succeed because we don't have a server! */ | |
166 | goto end; | |
167 | if (!TEST_true(get_sni_from_client_hello(wbio, &hostname))) | |
168 | /* no SNI in client hello */ | |
169 | goto end; | |
170 | if (!TEST_str_eq(hostname, host)) | |
171 | /* incorrect SNI value */ | |
172 | goto end; | |
173 | ret = 1; | |
174 | end: | |
175 | OPENSSL_free(hostname); | |
176 | SSL_free(con); | |
177 | SSL_CTX_free(ctx); | |
178 | return ret; | |
179 | } | |
180 | ||
31a80694 | 181 | static int server_setup_sni(void) |
190b9a03 | 182 | { |
f01344cb MC |
183 | SSL_CTX *cctx = NULL, *sctx = NULL; |
184 | SSL *clientssl = NULL, *serverssl = NULL; | |
185 | int testresult = 0; | |
190b9a03 | 186 | |
f01344cb MC |
187 | if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(), |
188 | TLS_client_method(), | |
189 | TLS1_VERSION, TLS_MAX_VERSION, | |
190 | &sctx, &cctx, cert, privkey)) | |
191 | || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, | |
192 | NULL, NULL))) | |
190b9a03 | 193 | goto end; |
190b9a03 PY |
194 | |
195 | /* set SNI at server side */ | |
f01344cb | 196 | SSL_set_tlsext_host_name(serverssl, host); |
190b9a03 | 197 | |
f01344cb | 198 | if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))) |
190b9a03 | 199 | goto end; |
f01344cb MC |
200 | |
201 | if (!TEST_ptr_null(SSL_get_servername(serverssl, | |
202 | TLSEXT_NAMETYPE_host_name))) { | |
203 | /* SNI should have been cleared during handshake */ | |
190b9a03 | 204 | goto end; |
f01344cb | 205 | } |
3b09585b | 206 | |
f01344cb | 207 | testresult = 1; |
190b9a03 | 208 | end: |
f01344cb MC |
209 | SSL_free(serverssl); |
210 | SSL_free(clientssl); | |
211 | SSL_CTX_free(sctx); | |
212 | SSL_CTX_free(cctx); | |
213 | ||
214 | return testresult; | |
190b9a03 PY |
215 | } |
216 | ||
217 | typedef int (*sni_test_fn)(void); | |
218 | ||
219 | static sni_test_fn sni_test_fns[3] = { | |
220 | client_setup_sni_before_state, | |
221 | client_setup_sni_after_state, | |
222 | server_setup_sni | |
223 | }; | |
224 | ||
225 | static int test_servername(int test) | |
226 | { | |
227 | /* | |
228 | * For each test set up an SSL_CTX and SSL and see | |
229 | * what SNI behaves. | |
230 | */ | |
231 | return sni_test_fns[test](); | |
232 | } | |
233 | ||
234 | int setup_tests(void) | |
235 | { | |
f01344cb MC |
236 | if (!TEST_ptr(cert = test_get_argument(0)) |
237 | || !TEST_ptr(privkey = test_get_argument(1))) | |
238 | return 0; | |
239 | ||
190b9a03 PY |
240 | ADD_ALL_TESTS(test_servername, OSSL_NELEM(sni_test_fns)); |
241 | return 1; | |
242 | } |