cpukit/libtest/t-test-hash-sha256.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSTestFrameworkImpl
0007  *
0008  * @brief This source file contains the implementation of
0009  *   T_report_hash_sha256_update() and T_report_hash_sha256().
0010  */
0011
0012 /*
0013  * Copyright (C) 2019, 2021 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #include <rtems/test.h>
0038
0039 #include <limits.h>
0040
0041 #if defined(__rtems__)
0042 #include <sha256.h>
0043 #else
0044 #include <openssl/sha.h>
0045 #endif
0046
0047 #include <rtems/base64.h>
0048
0049 typedef struct {
0050     SHA256_CTX sha256;
0051     T_putchar putchar;
0052     void *putchar_arg;
0053 } T_report_hash_sha256_context;
0054
0055 static T_report_hash_sha256_context T_report_hash_sha256_instance;
0056
0057 void
0058 T_report_hash_sha256_update(char c)
0059 {
0060     T_report_hash_sha256_context *ctx;
0061
0062     ctx = &T_report_hash_sha256_instance;
0063     SHA256_Update(&ctx->sha256, &c, sizeof(c));
0064 }
0065
0066 static void
0067 T_report_hash_sha256_putchar(int c, void *arg)
0068 {
0069     T_report_hash_sha256_context *ctx;
0070     char cc;
0071
0072     ctx = arg;
0073     cc = (char)c;
0074     SHA256_Update(&ctx->sha256, &cc, sizeof(cc));
0075     (*ctx->putchar)(c, ctx->putchar_arg);
0076 }
0077
0078 static void
0079 T_report_hash_sha256_initialize(void)
0080 {
0081     T_report_hash_sha256_context *ctx;
0082
0083     ctx = &T_report_hash_sha256_instance;
0084     SHA256_Init(&ctx->sha256);
0085     T_set_putchar(T_report_hash_sha256_putchar, ctx, &ctx->putchar,
0086         &ctx->putchar_arg);
0087 }
0088
0089 static void
0090 T_report_hash_sha256_finalize(void)
0091 {
0092     T_report_hash_sha256_context *ctx;
0093     unsigned char hash[32];
0094
0095     ctx = &T_report_hash_sha256_instance;
0096     SHA256_Final(hash, &ctx->sha256);
0097     T_printf("Y:ReportHash:SHA256:");
0098     (void)_Base64url_Encode(ctx->putchar, ctx->putchar_arg, hash,
0099         sizeof(hash), NULL, INT_MAX);
0100     T_printf("\n");
0101 }
0102
0103 void
0104 T_report_hash_sha256(T_event event, const char *name)
0105 {
0106     (void)name;
0107
0108     switch (event) {
0109     case T_EVENT_RUN_INITIALIZE_EARLY:
0110         T_report_hash_sha256_initialize();
0111         break;
0112     case T_EVENT_RUN_FINALIZE_LATE:
0113         T_report_hash_sha256_finalize();
0114         break;
0115     default:
0116         break;
0117     };
0118 }