Willie Solano / mbedtls-slave-prot-prod

mbed TLS Build

Dependents:   Slave-prot-prod

include/mbedtls/platform.h@1:1a219dea6cb5, 2019-06-04 (annotated)

Committer:
williequesada
Date:
Tue Jun 04 16:03:38 2019 +0000
Revision:
1:1a219dea6cb5
Parent:
0:cdf462088d13 
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markrad 0:cdf462088d13 1 /**
markrad 0:cdf462088d13 2 * \file platform.h
markrad 0:cdf462088d13 3 *
markrad 0:cdf462088d13 4 * \brief mbed TLS Platform abstraction layer
markrad 0:cdf462088d13 5 *
markrad 0:cdf462088d13 6 * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
markrad 0:cdf462088d13 7 * SPDX-License-Identifier: Apache-2.0
markrad 0:cdf462088d13 8 *
markrad 0:cdf462088d13 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
markrad 0:cdf462088d13 10 * not use this file except in compliance with the License.
markrad 0:cdf462088d13 11 * You may obtain a copy of the License at
markrad 0:cdf462088d13 12 *
markrad 0:cdf462088d13 13 * http://www.apache.org/licenses/LICENSE-2.0
markrad 0:cdf462088d13 14 *
markrad 0:cdf462088d13 15 * Unless required by applicable law or agreed to in writing, software
markrad 0:cdf462088d13 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
markrad 0:cdf462088d13 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
markrad 0:cdf462088d13 18 * See the License for the specific language governing permissions and
markrad 0:cdf462088d13 19 * limitations under the License.
markrad 0:cdf462088d13 20 *
markrad 0:cdf462088d13 21 * This file is part of mbed TLS (https://tls.mbed.org)
markrad 0:cdf462088d13 22 */
markrad 0:cdf462088d13 23 #ifndef MBEDTLS_PLATFORM_H
markrad 0:cdf462088d13 24 #define MBEDTLS_PLATFORM_H
markrad 0:cdf462088d13 25
markrad 0:cdf462088d13 26 #if !defined(MBEDTLS_CONFIG_FILE)
markrad 0:cdf462088d13 27 #include "config.h"
markrad 0:cdf462088d13 28 #else
markrad 0:cdf462088d13 29 #include MBEDTLS_CONFIG_FILE
markrad 0:cdf462088d13 30 #endif
markrad 0:cdf462088d13 31
markrad 0:cdf462088d13 32 #if defined(MBEDTLS_HAVE_TIME)
markrad 0:cdf462088d13 33 #include "mbedtls/platform_time.h"
markrad 0:cdf462088d13 34 #endif
markrad 0:cdf462088d13 35
markrad 0:cdf462088d13 36 #ifdef __cplusplus
markrad 0:cdf462088d13 37 extern "C" {
markrad 0:cdf462088d13 38 #endif
markrad 0:cdf462088d13 39
markrad 0:cdf462088d13 40 /**
markrad 0:cdf462088d13 41 * \name SECTION: Module settings
markrad 0:cdf462088d13 42 *
markrad 0:cdf462088d13 43 * The configuration options you can set for this module are in this section.
markrad 0:cdf462088d13 44 * Either change them in config.h or define them on the compiler command line.
markrad 0:cdf462088d13 45 * \{
markrad 0:cdf462088d13 46 */
markrad 0:cdf462088d13 47
markrad 0:cdf462088d13 48 #if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
markrad 0:cdf462088d13 49 #include <stdio.h>
markrad 0:cdf462088d13 50 #include <stdlib.h>
markrad 0:cdf462088d13 51 #include <time.h>
markrad 0:cdf462088d13 52 #if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
markrad 0:cdf462088d13 53 #if defined(_WIN32)
markrad 0:cdf462088d13 54 #define MBEDTLS_PLATFORM_STD_SNPRINTF mbedtls_platform_win32_snprintf /**< Default snprintf to use */
markrad 0:cdf462088d13 55 #else
markrad 0:cdf462088d13 56 #define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use */
markrad 0:cdf462088d13 57 #endif
markrad 0:cdf462088d13 58 #endif
markrad 0:cdf462088d13 59 #if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
markrad 0:cdf462088d13 60 #define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use */
markrad 0:cdf462088d13 61 #endif
markrad 0:cdf462088d13 62 #if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
markrad 0:cdf462088d13 63 #define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use */
markrad 0:cdf462088d13 64 #endif
markrad 0:cdf462088d13 65 #if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
markrad 0:cdf462088d13 66 #define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use */
markrad 0:cdf462088d13 67 #endif
markrad 0:cdf462088d13 68 #if !defined(MBEDTLS_PLATFORM_STD_FREE)
markrad 0:cdf462088d13 69 #define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use */
markrad 0:cdf462088d13 70 #endif
markrad 0:cdf462088d13 71 #if !defined(MBEDTLS_PLATFORM_STD_EXIT)
markrad 0:cdf462088d13 72 #define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use */
markrad 0:cdf462088d13 73 #endif
markrad 0:cdf462088d13 74 #if !defined(MBEDTLS_PLATFORM_STD_TIME)
markrad 0:cdf462088d13 75 #define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use */
markrad 0:cdf462088d13 76 #endif
markrad 0:cdf462088d13 77 #if !defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS)
markrad 0:cdf462088d13 78 #define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS EXIT_SUCCESS /**< Default exit value to use */
markrad 0:cdf462088d13 79 #endif
markrad 0:cdf462088d13 80 #if !defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE)
markrad 0:cdf462088d13 81 #define MBEDTLS_PLATFORM_STD_EXIT_FAILURE EXIT_FAILURE /**< Default exit value to use */
markrad 0:cdf462088d13 82 #endif
markrad 0:cdf462088d13 83 #if defined(MBEDTLS_FS_IO)
markrad 0:cdf462088d13 84 #if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ)
markrad 0:cdf462088d13 85 #define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read
markrad 0:cdf462088d13 86 #endif
markrad 0:cdf462088d13 87 #if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE)
markrad 0:cdf462088d13 88 #define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write
markrad 0:cdf462088d13 89 #endif
markrad 0:cdf462088d13 90 #if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_FILE)
markrad 0:cdf462088d13 91 #define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile"
markrad 0:cdf462088d13 92 #endif
markrad 0:cdf462088d13 93 #endif /* MBEDTLS_FS_IO */
markrad 0:cdf462088d13 94 #else /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
markrad 0:cdf462088d13 95 #if defined(MBEDTLS_PLATFORM_STD_MEM_HDR)
markrad 0:cdf462088d13 96 #include MBEDTLS_PLATFORM_STD_MEM_HDR
markrad 0:cdf462088d13 97 #endif
markrad 0:cdf462088d13 98 #endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
markrad 0:cdf462088d13 99
markrad 0:cdf462088d13 100
markrad 0:cdf462088d13 101 /* \} name SECTION: Module settings */
markrad 0:cdf462088d13 102
markrad 0:cdf462088d13 103 /*
markrad 0:cdf462088d13 104 * The function pointers for calloc and free
markrad 0:cdf462088d13 105 */
markrad 0:cdf462088d13 106 #if defined(MBEDTLS_PLATFORM_MEMORY)
markrad 0:cdf462088d13 107 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) && \
markrad 0:cdf462088d13 108 defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
markrad 0:cdf462088d13 109 #define mbedtls_free MBEDTLS_PLATFORM_FREE_MACRO
markrad 0:cdf462088d13 110 #define mbedtls_calloc MBEDTLS_PLATFORM_CALLOC_MACRO
markrad 0:cdf462088d13 111 #else
markrad 0:cdf462088d13 112 /* For size_t */
markrad 0:cdf462088d13 113 #include <stddef.h>
markrad 0:cdf462088d13 114 extern void * (*mbedtls_calloc)( size_t n, size_t size );
markrad 0:cdf462088d13 115 extern void (*mbedtls_free)( void *ptr );
markrad 0:cdf462088d13 116
markrad 0:cdf462088d13 117 /**
markrad 0:cdf462088d13 118 * \brief Set your own memory implementation function pointers
markrad 0:cdf462088d13 119 *
markrad 0:cdf462088d13 120 * \param calloc_func the calloc function implementation
markrad 0:cdf462088d13 121 * \param free_func the free function implementation
markrad 0:cdf462088d13 122 *
markrad 0:cdf462088d13 123 * \return 0 if successful
markrad 0:cdf462088d13 124 */
markrad 0:cdf462088d13 125 int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
markrad 0:cdf462088d13 126 void (*free_func)( void * ) );
markrad 0:cdf462088d13 127 #endif /* MBEDTLS_PLATFORM_FREE_MACRO && MBEDTLS_PLATFORM_CALLOC_MACRO */
markrad 0:cdf462088d13 128 #else /* !MBEDTLS_PLATFORM_MEMORY */
markrad 0:cdf462088d13 129 #define mbedtls_free free
markrad 0:cdf462088d13 130 #define mbedtls_calloc calloc
markrad 0:cdf462088d13 131 #endif /* MBEDTLS_PLATFORM_MEMORY && !MBEDTLS_PLATFORM_{FREE,CALLOC}_MACRO */
markrad 0:cdf462088d13 132
markrad 0:cdf462088d13 133 /*
markrad 0:cdf462088d13 134 * The function pointers for fprintf
markrad 0:cdf462088d13 135 */
markrad 0:cdf462088d13 136 #if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
markrad 0:cdf462088d13 137 /* We need FILE * */
markrad 0:cdf462088d13 138 #include <stdio.h>
markrad 0:cdf462088d13 139 extern int (*mbedtls_fprintf)( FILE *stream, const char *format, ... );
markrad 0:cdf462088d13 140
markrad 0:cdf462088d13 141 /**
markrad 0:cdf462088d13 142 * \brief Set your own fprintf function pointer
markrad 0:cdf462088d13 143 *
markrad 0:cdf462088d13 144 * \param fprintf_func the fprintf function implementation
markrad 0:cdf462088d13 145 *
markrad 0:cdf462088d13 146 * \return 0
markrad 0:cdf462088d13 147 */
markrad 0:cdf462088d13 148 int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *stream, const char *,
markrad 0:cdf462088d13 149 ... ) );
markrad 0:cdf462088d13 150 #else
markrad 0:cdf462088d13 151 #if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO)
markrad 0:cdf462088d13 152 #define mbedtls_fprintf MBEDTLS_PLATFORM_FPRINTF_MACRO
markrad 0:cdf462088d13 153 #else
markrad 0:cdf462088d13 154 #define mbedtls_fprintf fprintf
markrad 0:cdf462088d13 155 #endif /* MBEDTLS_PLATFORM_FPRINTF_MACRO */
markrad 0:cdf462088d13 156 #endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
markrad 0:cdf462088d13 157
markrad 0:cdf462088d13 158 /*
markrad 0:cdf462088d13 159 * The function pointers for printf
markrad 0:cdf462088d13 160 */
markrad 0:cdf462088d13 161 #if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
markrad 0:cdf462088d13 162 extern int (*mbedtls_printf)( const char *format, ... );
markrad 0:cdf462088d13 163
markrad 0:cdf462088d13 164 /**
markrad 0:cdf462088d13 165 * \brief Set your own printf function pointer
markrad 0:cdf462088d13 166 *
markrad 0:cdf462088d13 167 * \param printf_func the printf function implementation
markrad 0:cdf462088d13 168 *
markrad 0:cdf462088d13 169 * \return 0
markrad 0:cdf462088d13 170 */
markrad 0:cdf462088d13 171 int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) );
markrad 0:cdf462088d13 172 #else /* !MBEDTLS_PLATFORM_PRINTF_ALT */
markrad 0:cdf462088d13 173 #if defined(MBEDTLS_PLATFORM_PRINTF_MACRO)
markrad 0:cdf462088d13 174 #define mbedtls_printf MBEDTLS_PLATFORM_PRINTF_MACRO
markrad 0:cdf462088d13 175 #else
markrad 0:cdf462088d13 176 #define mbedtls_printf printf
markrad 0:cdf462088d13 177 #endif /* MBEDTLS_PLATFORM_PRINTF_MACRO */
markrad 0:cdf462088d13 178 #endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
markrad 0:cdf462088d13 179
markrad 0:cdf462088d13 180 /*
markrad 0:cdf462088d13 181 * The function pointers for snprintf
markrad 0:cdf462088d13 182 *
markrad 0:cdf462088d13 183 * The snprintf implementation should conform to C99:
markrad 0:cdf462088d13 184 * - it *must* always correctly zero-terminate the buffer
markrad 0:cdf462088d13 185 * (except when n == 0, then it must leave the buffer untouched)
markrad 0:cdf462088d13 186 * - however it is acceptable to return -1 instead of the required length when
markrad 0:cdf462088d13 187 * the destination buffer is too short.
markrad 0:cdf462088d13 188 */
markrad 0:cdf462088d13 189 #if defined(_WIN32)
markrad 0:cdf462088d13 190 /* For Windows (inc. MSYS2), we provide our own fixed implementation */
markrad 0:cdf462088d13 191 int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... );
markrad 0:cdf462088d13 192 #endif
markrad 0:cdf462088d13 193
markrad 0:cdf462088d13 194 #if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
markrad 0:cdf462088d13 195 extern int (*mbedtls_snprintf)( char * s, size_t n, const char * format, ... );
markrad 0:cdf462088d13 196
markrad 0:cdf462088d13 197 /**
markrad 0:cdf462088d13 198 * \brief Set your own snprintf function pointer
markrad 0:cdf462088d13 199 *
markrad 0:cdf462088d13 200 * \param snprintf_func the snprintf function implementation
markrad 0:cdf462088d13 201 *
markrad 0:cdf462088d13 202 * \return 0
markrad 0:cdf462088d13 203 */
markrad 0:cdf462088d13 204 int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
markrad 0:cdf462088d13 205 const char * format, ... ) );
markrad 0:cdf462088d13 206 #else /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
markrad 0:cdf462088d13 207 #if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
markrad 0:cdf462088d13 208 #define mbedtls_snprintf MBEDTLS_PLATFORM_SNPRINTF_MACRO
markrad 0:cdf462088d13 209 #else
markrad 0:cdf462088d13 210 #define mbedtls_snprintf snprintf
markrad 0:cdf462088d13 211 #endif /* MBEDTLS_PLATFORM_SNPRINTF_MACRO */
markrad 0:cdf462088d13 212 #endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
markrad 0:cdf462088d13 213
markrad 0:cdf462088d13 214 /*
markrad 0:cdf462088d13 215 * The function pointers for exit
markrad 0:cdf462088d13 216 */
markrad 0:cdf462088d13 217 #if defined(MBEDTLS_PLATFORM_EXIT_ALT)
markrad 0:cdf462088d13 218 extern void (*mbedtls_exit)( int status );
markrad 0:cdf462088d13 219
markrad 0:cdf462088d13 220 /**
markrad 0:cdf462088d13 221 * \brief Set your own exit function pointer
markrad 0:cdf462088d13 222 *
markrad 0:cdf462088d13 223 * \param exit_func the exit function implementation
markrad 0:cdf462088d13 224 *
markrad 0:cdf462088d13 225 * \return 0
markrad 0:cdf462088d13 226 */
markrad 0:cdf462088d13 227 int mbedtls_platform_set_exit( void (*exit_func)( int status ) );
markrad 0:cdf462088d13 228 #else
markrad 0:cdf462088d13 229 #if defined(MBEDTLS_PLATFORM_EXIT_MACRO)
markrad 0:cdf462088d13 230 #define mbedtls_exit MBEDTLS_PLATFORM_EXIT_MACRO
markrad 0:cdf462088d13 231 #else
markrad 0:cdf462088d13 232 #define mbedtls_exit exit
markrad 0:cdf462088d13 233 #endif /* MBEDTLS_PLATFORM_EXIT_MACRO */
markrad 0:cdf462088d13 234 #endif /* MBEDTLS_PLATFORM_EXIT_ALT */
markrad 0:cdf462088d13 235
markrad 0:cdf462088d13 236 /*
markrad 0:cdf462088d13 237 * The default exit values
markrad 0:cdf462088d13 238 */
markrad 0:cdf462088d13 239 #if defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS)
markrad 0:cdf462088d13 240 #define MBEDTLS_EXIT_SUCCESS MBEDTLS_PLATFORM_STD_EXIT_SUCCESS
markrad 0:cdf462088d13 241 #else
markrad 0:cdf462088d13 242 #define MBEDTLS_EXIT_SUCCESS 0
markrad 0:cdf462088d13 243 #endif
markrad 0:cdf462088d13 244 #if defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE)
markrad 0:cdf462088d13 245 #define MBEDTLS_EXIT_FAILURE MBEDTLS_PLATFORM_STD_EXIT_FAILURE
markrad 0:cdf462088d13 246 #else
markrad 0:cdf462088d13 247 #define MBEDTLS_EXIT_FAILURE 1
markrad 0:cdf462088d13 248 #endif
markrad 0:cdf462088d13 249
markrad 0:cdf462088d13 250 /*
markrad 0:cdf462088d13 251 * The function pointers for reading from and writing a seed file to
markrad 0:cdf462088d13 252 * Non-Volatile storage (NV) in a platform-independent way
markrad 0:cdf462088d13 253 *
markrad 0:cdf462088d13 254 * Only enabled when the NV seed entropy source is enabled
markrad 0:cdf462088d13 255 */
markrad 0:cdf462088d13 256 #if defined(MBEDTLS_ENTROPY_NV_SEED)
markrad 0:cdf462088d13 257 #if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO)
markrad 0:cdf462088d13 258 /* Internal standard platform definitions */
markrad 0:cdf462088d13 259 int mbedtls_platform_std_nv_seed_read( unsigned char *buf, size_t buf_len );
markrad 0:cdf462088d13 260 int mbedtls_platform_std_nv_seed_write( unsigned char *buf, size_t buf_len );
markrad 0:cdf462088d13 261 #endif
markrad 0:cdf462088d13 262
markrad 0:cdf462088d13 263 #if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
markrad 0:cdf462088d13 264 extern int (*mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len );
markrad 0:cdf462088d13 265 extern int (*mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len );
markrad 0:cdf462088d13 266
markrad 0:cdf462088d13 267 /**
markrad 0:cdf462088d13 268 * \brief Set your own seed file writing/reading functions
markrad 0:cdf462088d13 269 *
markrad 0:cdf462088d13 270 * \param nv_seed_read_func the seed reading function implementation
markrad 0:cdf462088d13 271 * \param nv_seed_write_func the seed writing function implementation
markrad 0:cdf462088d13 272 *
markrad 0:cdf462088d13 273 * \return 0
markrad 0:cdf462088d13 274 */
markrad 0:cdf462088d13 275 int mbedtls_platform_set_nv_seed(
markrad 0:cdf462088d13 276 int (*nv_seed_read_func)( unsigned char *buf, size_t buf_len ),
markrad 0:cdf462088d13 277 int (*nv_seed_write_func)( unsigned char *buf, size_t buf_len )
markrad 0:cdf462088d13 278 );
markrad 0:cdf462088d13 279 #else
markrad 0:cdf462088d13 280 #if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) && \
markrad 0:cdf462088d13 281 defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO)
markrad 0:cdf462088d13 282 #define mbedtls_nv_seed_read MBEDTLS_PLATFORM_NV_SEED_READ_MACRO
markrad 0:cdf462088d13 283 #define mbedtls_nv_seed_write MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO
markrad 0:cdf462088d13 284 #else
markrad 0:cdf462088d13 285 #define mbedtls_nv_seed_read mbedtls_platform_std_nv_seed_read
markrad 0:cdf462088d13 286 #define mbedtls_nv_seed_write mbedtls_platform_std_nv_seed_write
markrad 0:cdf462088d13 287 #endif
markrad 0:cdf462088d13 288 #endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
markrad 0:cdf462088d13 289 #endif /* MBEDTLS_ENTROPY_NV_SEED */
markrad 0:cdf462088d13 290
markrad 0:cdf462088d13 291 #ifdef __cplusplus
markrad 0:cdf462088d13 292 }
markrad 0:cdf462088d13 293 #endif
markrad 0:cdf462088d13 294
markrad 0:cdf462088d13 295 #endif /* platform.h */