1 /*
2 * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.openssl.org/source/license.html
8 * or in the file LICENSE in the source distribution.
9 */
10
11 #include <stdio.h>
12 #include <string.h>
13
14 #include <openssl/opensslconf.h>
15 #include <openssl/err.h>
16 #include <openssl/e_os2.h>
17 #include <openssl/ssl.h>
18 #include <openssl/ssl3.h>
19 #include <openssl/tls1.h>
20
21 #include "internal/nelem.h"
22 #include "testutil.h"
23
24 typedef struct cipherlist_test_fixture {
25 const char *test_case_name;
26 SSL_CTX *server;
27 SSL_CTX *client;
28 } CIPHERLIST_TEST_FIXTURE;
29
30
tear_down(CIPHERLIST_TEST_FIXTURE * fixture)31 static void tear_down(CIPHERLIST_TEST_FIXTURE *fixture)
32 {
33 if (fixture != NULL) {
34 SSL_CTX_free(fixture->server);
35 SSL_CTX_free(fixture->client);
36 fixture->server = fixture->client = NULL;
37 OPENSSL_free(fixture);
38 }
39 }
40
set_up(const char * const test_case_name)41 static CIPHERLIST_TEST_FIXTURE *set_up(const char *const test_case_name)
42 {
43 CIPHERLIST_TEST_FIXTURE *fixture;
44
45 if (!TEST_ptr(fixture = OPENSSL_zalloc(sizeof(*fixture))))
46 return NULL;
47 fixture->test_case_name = test_case_name;
48 if (!TEST_ptr(fixture->server = SSL_CTX_new(TLS_server_method()))
49 || !TEST_ptr(fixture->client = SSL_CTX_new(TLS_client_method()))) {
50 tear_down(fixture);
51 return NULL;
52 }
53 return fixture;
54 }
55
56 /*
57 * All ciphers in the DEFAULT cipherlist meet the default security level.
58 * However, default supported ciphers exclude SRP and PSK ciphersuites
59 * for which no callbacks have been set up.
60 *
61 * Supported ciphers also exclude TLSv1.2 ciphers if TLSv1.2 is disabled,
62 * and individual disabled algorithms. However, NO_RSA, NO_AES and NO_SHA
63 * are currently broken and should be considered mission impossible in libssl.
64 */
65 static const uint32_t default_ciphers_in_order[] = {
66 #ifndef OPENSSL_NO_TLS1_3
67 TLS1_3_CK_AES_256_GCM_SHA384,
68 # if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
69 TLS1_3_CK_CHACHA20_POLY1305_SHA256,
70 # endif
71 TLS1_3_CK_AES_128_GCM_SHA256,
72 #endif
73 #ifndef OPENSSL_NO_TLS1_2
74 # ifndef OPENSSL_NO_EC
75 TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
76 TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
77 # endif
78 # ifndef OPENSSL_NO_DH
79 TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384,
80 # endif
81
82 # if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
83 # ifndef OPENSSL_NO_EC
84 TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
85 TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305,
86 # endif
87 # ifndef OPENSSL_NO_DH
88 TLS1_CK_DHE_RSA_WITH_CHACHA20_POLY1305,
89 # endif
90 # endif /* !OPENSSL_NO_CHACHA && !OPENSSL_NO_POLY1305 */
91
92 # ifndef OPENSSL_NO_EC
93 TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
94 TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
95 # endif
96 # ifndef OPENSSL_NO_DH
97 TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256,
98 # endif
99 # ifndef OPENSSL_NO_EC
100 TLS1_CK_ECDHE_ECDSA_WITH_AES_256_SHA384,
101 TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384,
102 # endif
103 # ifndef OPENSSL_NO_DH
104 TLS1_CK_DHE_RSA_WITH_AES_256_SHA256,
105 # endif
106 # ifndef OPENSSL_NO_EC
107 TLS1_CK_ECDHE_ECDSA_WITH_AES_128_SHA256,
108 TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256,
109 # endif
110 # ifndef OPENSSL_NO_DH
111 TLS1_CK_DHE_RSA_WITH_AES_128_SHA256,
112 # endif
113 #endif /* !OPENSSL_NO_TLS1_2 */
114
115 #if !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3)
116 /* These won't be usable if TLSv1.3 is available but TLSv1.2 isn't */
117 # ifndef OPENSSL_NO_EC
118 TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
119 TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA,
120 # endif
121 #ifndef OPENSSL_NO_DH
122 TLS1_CK_DHE_RSA_WITH_AES_256_SHA,
123 # endif
124 # ifndef OPENSSL_NO_EC
125 TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
126 TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA,
127 # endif
128 # ifndef OPENSSL_NO_DH
129 TLS1_CK_DHE_RSA_WITH_AES_128_SHA,
130 # endif
131 #endif /* !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3) */
132
133 #ifndef OPENSSL_NO_TLS1_2
134 TLS1_CK_RSA_WITH_AES_256_GCM_SHA384,
135 TLS1_CK_RSA_WITH_AES_128_GCM_SHA256,
136 #endif
137 #ifndef OPENSSL_NO_TLS1_2
138 TLS1_CK_RSA_WITH_AES_256_SHA256,
139 TLS1_CK_RSA_WITH_AES_128_SHA256,
140 #endif
141 #if !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3)
142 /* These won't be usable if TLSv1.3 is available but TLSv1.2 isn't */
143 TLS1_CK_RSA_WITH_AES_256_SHA,
144 TLS1_CK_RSA_WITH_AES_128_SHA,
145 #endif
146 };
147
test_default_cipherlist(SSL_CTX * ctx)148 static int test_default_cipherlist(SSL_CTX *ctx)
149 {
150 STACK_OF(SSL_CIPHER) *ciphers = NULL;
151 SSL *ssl = NULL;
152 int i, ret = 0, num_expected_ciphers, num_ciphers;
153 uint32_t expected_cipher_id, cipher_id;
154
155 if (ctx == NULL)
156 return 0;
157
158 if (!TEST_ptr(ssl = SSL_new(ctx))
159 || !TEST_ptr(ciphers = SSL_get1_supported_ciphers(ssl)))
160 goto err;
161
162 num_expected_ciphers = OSSL_NELEM(default_ciphers_in_order);
163 num_ciphers = sk_SSL_CIPHER_num(ciphers);
164 if (!TEST_int_eq(num_ciphers, num_expected_ciphers))
165 goto err;
166
167 for (i = 0; i < num_ciphers; i++) {
168 expected_cipher_id = default_ciphers_in_order[i];
169 cipher_id = SSL_CIPHER_get_id(sk_SSL_CIPHER_value(ciphers, i));
170 if (!TEST_int_eq(cipher_id, expected_cipher_id)) {
171 TEST_info("Wrong cipher at position %d", i);
172 goto err;
173 }
174 }
175
176 ret = 1;
177
178 err:
179 sk_SSL_CIPHER_free(ciphers);
180 SSL_free(ssl);
181 return ret;
182 }
183
execute_test(CIPHERLIST_TEST_FIXTURE * fixture)184 static int execute_test(CIPHERLIST_TEST_FIXTURE *fixture)
185 {
186 return fixture != NULL
187 && test_default_cipherlist(fixture->server)
188 && test_default_cipherlist(fixture->client);
189 }
190
191 #define SETUP_CIPHERLIST_TEST_FIXTURE() \
192 SETUP_TEST_FIXTURE(CIPHERLIST_TEST_FIXTURE, set_up)
193
194 #define EXECUTE_CIPHERLIST_TEST() \
195 EXECUTE_TEST(execute_test, tear_down)
196
test_default_cipherlist_implicit(void)197 static int test_default_cipherlist_implicit(void)
198 {
199 SETUP_CIPHERLIST_TEST_FIXTURE();
200 EXECUTE_CIPHERLIST_TEST();
201 return result;
202 }
203
test_default_cipherlist_explicit(void)204 static int test_default_cipherlist_explicit(void)
205 {
206 SETUP_CIPHERLIST_TEST_FIXTURE();
207 if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, "DEFAULT"))
208 || !TEST_true(SSL_CTX_set_cipher_list(fixture->client, "DEFAULT"))) {
209 tear_down(fixture);
210 fixture = NULL;
211 }
212 EXECUTE_CIPHERLIST_TEST();
213 return result;
214 }
215
216 /* SSL_CTX_set_cipher_list() should fail if it clears all TLSv1.2 ciphers. */
test_default_cipherlist_clear(void)217 static int test_default_cipherlist_clear(void)
218 {
219 SSL *s = NULL;
220 SETUP_CIPHERLIST_TEST_FIXTURE();
221
222 if (!TEST_int_eq(SSL_CTX_set_cipher_list(fixture->server, "no-such"), 0))
223 goto end;
224
225 if (!TEST_int_eq(ERR_GET_REASON(ERR_get_error()), SSL_R_NO_CIPHER_MATCH))
226 goto end;
227
228 s = SSL_new(fixture->client);
229
230 if (!TEST_ptr(s))
231 goto end;
232
233 if (!TEST_int_eq(SSL_set_cipher_list(s, "no-such"), 0))
234 goto end;
235
236 if (!TEST_int_eq(ERR_GET_REASON(ERR_get_error()),
237 SSL_R_NO_CIPHER_MATCH))
238 goto end;
239
240 result = 1;
241 end:
242 SSL_free(s);
243 tear_down(fixture);
244 return result;
245 }
246
247 /* SSL_CTX_set_cipher_list matching with cipher standard name */
test_stdname_cipherlist(void)248 static int test_stdname_cipherlist(void)
249 {
250 SETUP_CIPHERLIST_TEST_FIXTURE();
251 if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, TLS1_RFC_RSA_WITH_AES_128_SHA))
252 || !TEST_true(SSL_CTX_set_cipher_list(fixture->client, TLS1_RFC_RSA_WITH_AES_128_SHA))) {
253 goto end;
254 }
255 result = 1;
256 end:
257 tear_down(fixture);
258 fixture = NULL;
259 return result;
260 }
261
setup_tests(void)262 int setup_tests(void)
263 {
264 ADD_TEST(test_default_cipherlist_implicit);
265 ADD_TEST(test_default_cipherlist_explicit);
266 ADD_TEST(test_default_cipherlist_clear);
267 ADD_TEST(test_stdname_cipherlist);
268 return 1;
269 }
270
