| 1 | /*
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| 2 | * Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | * or in the file LICENSE in the source distribution.
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| 9 | */
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| 10 |
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| 11 | #include <string.h>
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| 12 | #include <stdio.h>
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| 13 |
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| 14 | #include <openssl/opensslconf.h>
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| 15 | #include <openssl/err.h>
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| 16 | #include <openssl/e_os2.h>
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| 17 | #include <openssl/ssl.h>
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| 18 | #include <openssl/ssl3.h>
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| 19 | #include <openssl/tls1.h>
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| 20 |
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| 21 | #include "internal/nelem.h"
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| 22 | #include "testutil.h"
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| 23 |
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| 24 | static SSL_CTX *ctx;
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| 25 | static SSL *s;
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| 26 |
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| 27 | static int test_empty(void)
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| 28 | {
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| 29 | STACK_OF(SSL_CIPHER) *sk = NULL, *scsv = NULL;
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| 30 | const unsigned char bytes[] = {0x00};
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| 31 | int ret = 0;
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| 32 |
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| 33 | if (!TEST_int_eq(SSL_bytes_to_cipher_list(s, bytes, 0, 0, &sk, &scsv), 0)
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| 34 | || !TEST_ptr_null(sk)
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| 35 | || !TEST_ptr_null(scsv))
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| 36 | goto err;
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| 37 | ret = 1;
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| 38 |
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| 39 | err:
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| 40 | sk_SSL_CIPHER_free(sk);
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| 41 | sk_SSL_CIPHER_free(scsv);
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| 42 | return ret;
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| 43 | }
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| 44 |
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| 45 | static int test_unsupported(void)
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| 46 | {
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| 47 | STACK_OF(SSL_CIPHER) *sk, *scsv;
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| 48 | /* ECDH-RSA-AES256 (unsupported), ECDHE-ECDSA-AES128, <unassigned> */
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| 49 | const unsigned char bytes[] = {0xc0, 0x0f, 0x00, 0x2f, 0x01, 0x00};
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| 50 | int ret = 0;
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| 51 |
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| 52 | if (!TEST_true(SSL_bytes_to_cipher_list(s, bytes, sizeof(bytes),
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| 53 | 0, &sk, &scsv))
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| 54 | || !TEST_ptr(sk)
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| 55 | || !TEST_int_eq(sk_SSL_CIPHER_num(sk), 1)
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| 56 | || !TEST_ptr(scsv)
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| 57 | || !TEST_int_eq(sk_SSL_CIPHER_num(scsv), 0)
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| 58 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 0)),
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| 59 | "AES128-SHA"))
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| 60 | goto err;
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| 61 |
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| 62 | ret = 1;
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| 63 | err:
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| 64 | sk_SSL_CIPHER_free(sk);
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| 65 | sk_SSL_CIPHER_free(scsv);
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| 66 | return ret;
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| 67 | }
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| 68 |
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| 69 | static int test_v2(void)
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| 70 | {
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| 71 | STACK_OF(SSL_CIPHER) *sk, *scsv;
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| 72 | /* ECDHE-ECDSA-AES256GCM, SSL2_RC4_1238_WITH_MD5,
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| 73 | * ECDHE-ECDSA-CHACHA20-POLY1305 */
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| 74 | const unsigned char bytes[] = {0x00, 0x00, 0x35, 0x01, 0x00, 0x80,
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| 75 | 0x00, 0x00, 0x33};
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| 76 | int ret = 0;
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| 77 |
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| 78 | if (!TEST_true(SSL_bytes_to_cipher_list(s, bytes, sizeof(bytes), 1,
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| 79 | &sk, &scsv))
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| 80 | || !TEST_ptr(sk)
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| 81 | || !TEST_int_eq(sk_SSL_CIPHER_num(sk), 2)
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| 82 | || !TEST_ptr(scsv)
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| 83 | || !TEST_int_eq(sk_SSL_CIPHER_num(scsv), 0))
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| 84 | goto err;
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| 85 | if (strcmp(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 0)),
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| 86 | "AES256-SHA") != 0 ||
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| 87 | strcmp(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 1)),
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| 88 | "DHE-RSA-AES128-SHA") != 0)
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| 89 | goto err;
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| 90 |
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| 91 | ret = 1;
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| 92 |
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| 93 | err:
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| 94 | sk_SSL_CIPHER_free(sk);
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| 95 | sk_SSL_CIPHER_free(scsv);
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| 96 | return ret;
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| 97 | }
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| 98 |
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| 99 | static int test_v3(void)
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| 100 | {
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| 101 | STACK_OF(SSL_CIPHER) *sk = NULL, *scsv = NULL;
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| 102 | /* ECDHE-ECDSA-AES256GCM, ECDHE-ECDSA-CHACHAPOLY, DHE-RSA-AES256GCM,
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| 103 | * EMPTY-RENEGOTIATION-INFO-SCSV, FALLBACK-SCSV */
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| 104 | const unsigned char bytes[] = {0x00, 0x2f, 0x00, 0x33, 0x00, 0x9f, 0x00, 0xff,
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| 105 | 0x56, 0x00};
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| 106 | int ret = 0;
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| 107 |
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| 108 | if (!SSL_bytes_to_cipher_list(s, bytes, sizeof(bytes), 0, &sk, &scsv)
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| 109 | || !TEST_ptr(sk)
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| 110 | || !TEST_int_eq(sk_SSL_CIPHER_num(sk), 3)
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| 111 | || !TEST_ptr(scsv)
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| 112 | || !TEST_int_eq(sk_SSL_CIPHER_num(scsv), 2)
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| 113 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 0)),
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| 114 | "AES128-SHA")
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| 115 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 1)),
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| 116 | "DHE-RSA-AES128-SHA")
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| 117 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(sk, 2)),
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| 118 | "DHE-RSA-AES256-GCM-SHA384")
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| 119 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(scsv, 0)),
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| 120 | "TLS_EMPTY_RENEGOTIATION_INFO_SCSV")
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| 121 | || !TEST_str_eq(SSL_CIPHER_get_name(sk_SSL_CIPHER_value(scsv, 1)),
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| 122 | "TLS_FALLBACK_SCSV"))
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| 123 | goto err;
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| 124 |
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| 125 | ret = 1;
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| 126 | err:
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| 127 | sk_SSL_CIPHER_free(sk);
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| 128 | sk_SSL_CIPHER_free(scsv);
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| 129 | return ret;
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| 130 | }
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| 131 |
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| 132 | int setup_tests(void)
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| 133 | {
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| 134 | if (!TEST_ptr(ctx = SSL_CTX_new(TLS_server_method()))
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| 135 | || !TEST_ptr(s = SSL_new(ctx)))
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| 136 | return 0;
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| 137 |
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| 138 | ADD_TEST(test_empty);
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| 139 | ADD_TEST(test_unsupported);
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| 140 | ADD_TEST(test_v2);
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| 141 | ADD_TEST(test_v3);
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| 142 | return 1;
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| 143 | }
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| 144 |
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| 145 | void cleanup_tests(void)
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| 146 | {
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| 147 | SSL_free(s);
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| 148 | SSL_CTX_free(ctx);
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| 149 | }
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