test/cipherlist_test.c

   1 /*
   2  * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL licenses, (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
  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
  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_2
  67 # ifndef OPENSSL_NO_EC
  68     TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
  69     TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
  70 # endif
  71 # ifndef OPENSSL_NO_DH
  72     TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384,
  73 # endif
  74
  75 # if !defined OPENSSL_NO_CHACHA && !defined OPENSSL_NO_POLY1305
  76 #  ifndef OPENSSL_NO_EC
  77     TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
  78     TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305,
  79 #  endif
  80 #  ifndef OPENSSL_NO_DH
  81     TLS1_CK_DHE_RSA_WITH_CHACHA20_POLY1305,
  82 #  endif
  83 # endif  /* !OPENSSL_NO_CHACHA && !OPENSSL_NO_POLY1305 */
  84
  85 # ifndef OPENSSL_NO_EC
  86     TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
  87     TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
  88 # endif
  89 # ifndef OPENSSL_NO_DH
  90     TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256,
  91 # endif
  92 # ifndef OPENSSL_NO_EC
  93     TLS1_CK_ECDHE_ECDSA_WITH_AES_256_SHA384,
  94     TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384,
  95 # endif
  96 # ifndef OPENSSL_NO_DH
  97     TLS1_CK_DHE_RSA_WITH_AES_256_SHA256,
  98 # endif
  99 # ifndef OPENSSL_NO_EC
 100     TLS1_CK_ECDHE_ECDSA_WITH_AES_128_SHA256,
 101     TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256,
 102 # endif
 103 # ifndef OPENSSL_NO_DH
 104     TLS1_CK_DHE_RSA_WITH_AES_128_SHA256,
 105 # endif
 106 #endif  /* !OPENSSL_NO_TLS1_2 */
 107
 108 #ifndef OPENSSL_NO_EC
 109     TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
 110     TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA,
 111 #endif
 112 #ifndef OPENSSL_NO_DH
 113     TLS1_CK_DHE_RSA_WITH_AES_256_SHA,
 114 #endif
 115 #ifndef OPENSSL_NO_EC
 116     TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
 117     TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA,
 118 #endif
 119 #ifndef OPENSSL_NO_DH
 120     TLS1_CK_DHE_RSA_WITH_AES_128_SHA,
 121 #endif
 122
 123 #ifndef OPENSSL_NO_TLS1_2
 124     TLS1_CK_RSA_WITH_AES_256_GCM_SHA384,
 125     TLS1_CK_RSA_WITH_AES_128_GCM_SHA256,
 126 #endif
 127 #ifndef OPENSSL_NO_TLS1_3
 128     TLS1_3_CK_AES_256_GCM_SHA384,
 129     TLS1_3_CK_CHACHA20_POLY1305_SHA256,
 130     TLS1_3_CK_AES_128_GCM_SHA256,
 131 #endif
 132 #ifndef OPENSSL_NO_TLS1_2
 133     TLS1_CK_RSA_WITH_AES_256_SHA256,
 134     TLS1_CK_RSA_WITH_AES_128_SHA256,
 135 #endif
 136     TLS1_CK_RSA_WITH_AES_256_SHA,
 137     TLS1_CK_RSA_WITH_AES_128_SHA,
 138 };
 139
 140 static int test_default_cipherlist(SSL_CTX *ctx)
 141 {
 142     STACK_OF(SSL_CIPHER) *ciphers = NULL;
 143     SSL *ssl = NULL;
 144     int i, ret = 0, num_expected_ciphers, num_ciphers;
 145     uint32_t expected_cipher_id, cipher_id;
 146
 147     if (ctx == NULL)
 148         return 0;
 149
 150     if (!TEST_ptr(ssl = SSL_new(ctx))
 151             || !TEST_ptr(ciphers = SSL_get1_supported_ciphers(ssl)))
 152         goto err;
 153
 154     num_expected_ciphers = OSSL_NELEM(default_ciphers_in_order);
 155     num_ciphers = sk_SSL_CIPHER_num(ciphers);
 156     if (!TEST_int_eq(num_ciphers, num_expected_ciphers))
 157         goto err;
 158
 159     for (i = 0; i < num_ciphers; i++) {
 160         expected_cipher_id = default_ciphers_in_order[i];
 161         cipher_id = SSL_CIPHER_get_id(sk_SSL_CIPHER_value(ciphers, i));
 162         if (!TEST_int_eq(cipher_id, expected_cipher_id)) {
 163             TEST_info("Wrong cipher at position %d", i);
 164             goto err;
 165         }
 166     }
 167
 168     ret = 1;
 169
 170  err:
 171     sk_SSL_CIPHER_free(ciphers);
 172     SSL_free(ssl);
 173     return ret;
 174 }
 175
 176 static int execute_test(CIPHERLIST_TEST_FIXTURE *fixture)
 177 {
 178     return fixture != NULL
 179         && test_default_cipherlist(fixture->server)
 180         && test_default_cipherlist(fixture->client);
 181 }
 182
 183 #define SETUP_CIPHERLIST_TEST_FIXTURE() \
 184     SETUP_TEST_FIXTURE(CIPHERLIST_TEST_FIXTURE, set_up)
 185
 186 #define EXECUTE_CIPHERLIST_TEST() \
 187     EXECUTE_TEST(execute_test, tear_down)
 188
 189 static int test_default_cipherlist_implicit(void)
 190 {
 191     SETUP_CIPHERLIST_TEST_FIXTURE();
 192     if (fixture == NULL)
 193         return 0;
 194     EXECUTE_CIPHERLIST_TEST();
 195     return result;
 196 }
 197
 198 static int test_default_cipherlist_explicit(void)
 199 {
 200     SETUP_CIPHERLIST_TEST_FIXTURE();
 201     if (fixture == NULL)
 202         return 0;
 203     if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, "DEFAULT"))
 204             || !TEST_true(SSL_CTX_set_cipher_list(fixture->client, "DEFAULT")))
 205         tear_down(fixture);
 206     EXECUTE_CIPHERLIST_TEST();
 207     return result;
 208 }
 209
 210 int setup_tests()
 211 {
 212     ADD_TEST(test_default_cipherlist_implicit);
 213     ADD_TEST(test_default_cipherlist_explicit);
 214     return 1;
 215 }