4165289b36
Instead of building the test suites inherited from BoringSSL as seperate executables, link them all together into one executable, giving all their `main` functions unique names. This allows all the tests to be run, even on platforms that don't have traditional process spawning, and avoids the need to keep track of directory names even on platforms that do support process spawning. This also makes it easier to integrate new BoringSSL test suites on Windows, because we don't need to create a new `vcxproj` file for each one. Having one test executable may also make code coverage easier.
129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
/*
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* Utilities for constant-time cryptography.
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*
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* Author: Emilia Kasper (emilia@openssl.org)
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* Based on previous work by Bodo Moeller, Emilia Kasper, Adam Langley
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* (Google).
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* ====================================================================
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* Copyright (c) 2014 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include "internal.h"
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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int bssl_constant_time_test_main(void);
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static const unsigned int CONSTTIME_TRUE = (unsigned)(~0);
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static const unsigned int CONSTTIME_FALSE = 0;
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static int test_is_zero(unsigned int a) {
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unsigned int c = constant_time_is_zero(a);
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if (a == 0 && c != CONSTTIME_TRUE) {
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fprintf(stderr,
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"Test failed for constant_time_is_zero(%du): expected %du (TRUE), "
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"got %du\n",
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a, CONSTTIME_TRUE, c);
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return 1;
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} else if (a != 0 && c != CONSTTIME_FALSE) {
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fprintf(stderr,
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"Test failed for constant_time_is_zero(%du): expected %du (FALSE), "
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"got %du\n",
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a, CONSTTIME_FALSE, c);
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return 1;
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}
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return 0;
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}
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static int test_eq_int(int a, int b) {
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unsigned int equal = constant_time_eq_int(a, b);
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if (a == b && equal != CONSTTIME_TRUE) {
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fprintf(stderr,
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"Test failed for constant_time_eq_int(%d, %d): expected %du(TRUE), "
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"got %du\n",
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a, b, CONSTTIME_TRUE, equal);
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return 1;
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} else if (a != b && equal != CONSTTIME_FALSE) {
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fprintf(stderr,
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"Test failed for constant_time_eq_int(%d, %d): expected "
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"%du(FALSE), got %du\n",
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a, b, CONSTTIME_FALSE, equal);
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return 1;
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}
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return 0;
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}
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static unsigned int test_values[] = {0, 1, 1024, 12345, 32000, UINT_MAX / 2 - 1,
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UINT_MAX / 2, UINT_MAX / 2 + 1,
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UINT_MAX - 1, UINT_MAX};
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static int signed_test_values[] = {
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0, 1, -1, 1024, -1024, 12345, -12345,
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32000, -32000, INT_MAX, INT_MIN, INT_MAX - 1, INT_MIN + 1};
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int bssl_constant_time_test_main(void) {
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unsigned int a, i, j;
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int c, d;
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int num_failed = 0, num_all = 0;
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for (i = 0; i < sizeof(test_values) / sizeof(int); ++i) {
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a = test_values[i];
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num_failed += test_is_zero(a);
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num_all += 2;
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}
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for (i = 0; i < sizeof(signed_test_values) / sizeof(int); ++i) {
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c = signed_test_values[i];
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for (j = 0; j < sizeof(signed_test_values) / sizeof(int); ++j) {
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d = signed_test_values[j];
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num_failed += test_eq_int(c, d);
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num_all += 3;
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}
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}
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if (!num_failed) {
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return EXIT_SUCCESS;
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} else {
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fprintf(stdout, "%d of %d tests failed!\n", num_failed, num_all);
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return EXIT_FAILURE;
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}
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}
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