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openssl/test/cipherlist_test.c

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/*
* Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
#include <stdio.h>
#include <string.h>
#include <openssl/opensslconf.h>
#include <openssl/err.h>
#include <openssl/e_os2.h>
#include <openssl/ssl.h>
#include <openssl/ssl3.h>
#include <openssl/tls1.h>
#include "internal/nelem.h"
#include "testutil.h"
typedef struct cipherlist_test_fixture {
const char *test_case_name;
SSL_CTX *server;
SSL_CTX *client;
} CIPHERLIST_TEST_FIXTURE;
static void tear_down(CIPHERLIST_TEST_FIXTURE *fixture)
{
if (fixture != NULL) {
SSL_CTX_free(fixture->server);
SSL_CTX_free(fixture->client);
fixture->server = fixture->client = NULL;
OPENSSL_free(fixture);
}
}
static CIPHERLIST_TEST_FIXTURE *set_up(const char *const test_case_name)
{
CIPHERLIST_TEST_FIXTURE *fixture;
if (!TEST_ptr(fixture = OPENSSL_zalloc(sizeof(*fixture))))
return NULL;
fixture->test_case_name = test_case_name;
if (!TEST_ptr(fixture->server = SSL_CTX_new(TLS_server_method()))
|| !TEST_ptr(fixture->client = SSL_CTX_new(TLS_client_method()))) {
tear_down(fixture);
return NULL;
}
return fixture;
}
/*
* All ciphers in the DEFAULT cipherlist meet the default security level.
* However, default supported ciphers exclude SRP and PSK ciphersuites
* for which no callbacks have been set up.
*
* Supported ciphers also exclude TLSv1.2 ciphers if TLSv1.2 is disabled,
* and individual disabled algorithms. However, NO_RSA, NO_AES and NO_SHA
* are currently broken and should be considered mission impossible in libssl.
*/
static const uint32_t default_ciphers_in_order[] = {
#ifndef OPENSSL_NO_TLS1_3
TLS1_3_CK_AES_256_GCM_SHA384,
# if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
TLS1_3_CK_CHACHA20_POLY1305_SHA256,
# endif
TLS1_3_CK_AES_128_GCM_SHA256,
#endif
#ifndef OPENSSL_NO_TLS1_2
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384,
# endif
# if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_CHACHA20_POLY1305,
# endif
# endif /* !OPENSSL_NO_CHACHA && !OPENSSL_NO_POLY1305 */
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256,
# endif
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_256_SHA384,
TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_256_SHA256,
# endif
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_SHA256,
TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_128_SHA256,
# endif
#endif /* !OPENSSL_NO_TLS1_2 */
#if !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3)
/* These won't be usable if TLSv1.3 is available but TLSv1.2 isn't */
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA,
# endif
#ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_256_SHA,
# endif
# ifndef OPENSSL_NO_EC
TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA,
# endif
# ifndef OPENSSL_NO_DH
TLS1_CK_DHE_RSA_WITH_AES_128_SHA,
# endif
#endif /* !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3) */
#ifndef OPENSSL_NO_TLS1_2
TLS1_CK_RSA_WITH_AES_256_GCM_SHA384,
TLS1_CK_RSA_WITH_AES_128_GCM_SHA256,
#endif
#ifndef OPENSSL_NO_TLS1_2
TLS1_CK_RSA_WITH_AES_256_SHA256,
TLS1_CK_RSA_WITH_AES_128_SHA256,
#endif
#if !defined(OPENSSL_NO_TLS1_2) || defined(OPENSSL_NO_TLS1_3)
/* These won't be usable if TLSv1.3 is available but TLSv1.2 isn't */
TLS1_CK_RSA_WITH_AES_256_SHA,
TLS1_CK_RSA_WITH_AES_128_SHA,
#endif
};
static int test_default_cipherlist(SSL_CTX *ctx)
{
STACK_OF(SSL_CIPHER) *ciphers = NULL;
SSL *ssl = NULL;
int i, ret = 0, num_expected_ciphers, num_ciphers;
uint32_t expected_cipher_id, cipher_id;
if (ctx == NULL)
return 0;
if (!TEST_ptr(ssl = SSL_new(ctx))
|| !TEST_ptr(ciphers = SSL_get1_supported_ciphers(ssl)))
goto err;
num_expected_ciphers = OSSL_NELEM(default_ciphers_in_order);
num_ciphers = sk_SSL_CIPHER_num(ciphers);
if (!TEST_int_eq(num_ciphers, num_expected_ciphers))
goto err;
for (i = 0; i < num_ciphers; i++) {
expected_cipher_id = default_ciphers_in_order[i];
cipher_id = SSL_CIPHER_get_id(sk_SSL_CIPHER_value(ciphers, i));
if (!TEST_int_eq(cipher_id, expected_cipher_id)) {
TEST_info("Wrong cipher at position %d", i);
goto err;
}
}
ret = 1;
err:
sk_SSL_CIPHER_free(ciphers);
SSL_free(ssl);
return ret;
}
static int execute_test(CIPHERLIST_TEST_FIXTURE *fixture)
{
return fixture != NULL
&& test_default_cipherlist(fixture->server)
&& test_default_cipherlist(fixture->client);
}
#define SETUP_CIPHERLIST_TEST_FIXTURE() \
SETUP_TEST_FIXTURE(CIPHERLIST_TEST_FIXTURE, set_up)
#define EXECUTE_CIPHERLIST_TEST() \
EXECUTE_TEST(execute_test, tear_down)
static int test_default_cipherlist_implicit(void)
{
SETUP_CIPHERLIST_TEST_FIXTURE();
EXECUTE_CIPHERLIST_TEST();
return result;
}
static int test_default_cipherlist_explicit(void)
{
SETUP_CIPHERLIST_TEST_FIXTURE();
if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, "DEFAULT"))
|| !TEST_true(SSL_CTX_set_cipher_list(fixture->client, "DEFAULT"))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_CIPHERLIST_TEST();
return result;
}
/* SSL_CTX_set_cipher_list() should fail if it clears all TLSv1.2 ciphers. */
static int test_default_cipherlist_clear(void)
{
SSL *s = NULL;
SETUP_CIPHERLIST_TEST_FIXTURE();
if (!TEST_int_eq(SSL_CTX_set_cipher_list(fixture->server, "no-such"), 0))
goto end;
if (!TEST_int_eq(ERR_GET_REASON(ERR_get_error()), SSL_R_NO_CIPHER_MATCH))
goto end;
s = SSL_new(fixture->client);
if (!TEST_ptr(s))
goto end;
if (!TEST_int_eq(SSL_set_cipher_list(s, "no-such"), 0))
goto end;
if (!TEST_int_eq(ERR_GET_REASON(ERR_get_error()),
SSL_R_NO_CIPHER_MATCH))
goto end;
result = 1;
end:
SSL_free(s);
tear_down(fixture);
return result;
}
/* SSL_CTX_set_cipher_list matching with cipher standard name */
static int test_stdname_cipherlist(void)
{
SETUP_CIPHERLIST_TEST_FIXTURE();
if (!TEST_true(SSL_CTX_set_cipher_list(fixture->server, TLS1_RFC_RSA_WITH_AES_128_SHA))
|| !TEST_true(SSL_CTX_set_cipher_list(fixture->client, TLS1_RFC_RSA_WITH_AES_128_SHA))) {
goto end;
}
result = 1;
end:
tear_down(fixture);
fixture = NULL;
return result;
}
int setup_tests(void)
{
ADD_TEST(test_default_cipherlist_implicit);
ADD_TEST(test_default_cipherlist_explicit);
ADD_TEST(test_default_cipherlist_clear);
ADD_TEST(test_stdname_cipherlist);
return 1;
}
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