Jan Korycan / WNCInterface

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   WncControllerK64F

Fork of WNCInterface by Jan Korycan

mbedtls/source/platform.c@12:0071cb144c7a, 2016-11-01 (annotated)

Committer:
JMF
Date:
Tue Nov 01 14:22:56 2016 +0000
Revision:
12:0071cb144c7a
Adding mbedtls files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 12:0071cb144c7a 1 /*
JMF 12:0071cb144c7a 2 * Platform abstraction layer
JMF 12:0071cb144c7a 3 *
JMF 12:0071cb144c7a 4 * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
JMF 12:0071cb144c7a 5 * SPDX-License-Identifier: Apache-2.0
JMF 12:0071cb144c7a 6 *
JMF 12:0071cb144c7a 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
JMF 12:0071cb144c7a 8 * not use this file except in compliance with the License.
JMF 12:0071cb144c7a 9 * You may obtain a copy of the License at
JMF 12:0071cb144c7a 10 *
JMF 12:0071cb144c7a 11 * http://www.apache.org/licenses/LICENSE-2.0
JMF 12:0071cb144c7a 12 *
JMF 12:0071cb144c7a 13 * Unless required by applicable law or agreed to in writing, software
JMF 12:0071cb144c7a 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
JMF 12:0071cb144c7a 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
JMF 12:0071cb144c7a 16 * See the License for the specific language governing permissions and
JMF 12:0071cb144c7a 17 * limitations under the License.
JMF 12:0071cb144c7a 18 *
JMF 12:0071cb144c7a 19 * This file is part of mbed TLS (https://tls.mbed.org)
JMF 12:0071cb144c7a 20 */
JMF 12:0071cb144c7a 21
JMF 12:0071cb144c7a 22 #if !defined(MBEDTLS_CONFIG_FILE)
JMF 12:0071cb144c7a 23 #include "mbedtls/config.h"
JMF 12:0071cb144c7a 24 #else
JMF 12:0071cb144c7a 25 #include MBEDTLS_CONFIG_FILE
JMF 12:0071cb144c7a 26 #endif
JMF 12:0071cb144c7a 27
JMF 12:0071cb144c7a 28 #if defined(MBEDTLS_PLATFORM_C)
JMF 12:0071cb144c7a 29
JMF 12:0071cb144c7a 30 #include "mbedtls/platform.h"
JMF 12:0071cb144c7a 31
JMF 12:0071cb144c7a 32 #if defined(MBEDTLS_PLATFORM_MEMORY)
JMF 12:0071cb144c7a 33 #if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
JMF 12:0071cb144c7a 34 static void *platform_calloc_uninit( size_t n, size_t size )
JMF 12:0071cb144c7a 35 {
JMF 12:0071cb144c7a 36 ((void) n);
JMF 12:0071cb144c7a 37 ((void) size);
JMF 12:0071cb144c7a 38 return( NULL );
JMF 12:0071cb144c7a 39 }
JMF 12:0071cb144c7a 40
JMF 12:0071cb144c7a 41 #define MBEDTLS_PLATFORM_STD_CALLOC platform_calloc_uninit
JMF 12:0071cb144c7a 42 #endif /* !MBEDTLS_PLATFORM_STD_CALLOC */
JMF 12:0071cb144c7a 43
JMF 12:0071cb144c7a 44 #if !defined(MBEDTLS_PLATFORM_STD_FREE)
JMF 12:0071cb144c7a 45 static void platform_free_uninit( void *ptr )
JMF 12:0071cb144c7a 46 {
JMF 12:0071cb144c7a 47 ((void) ptr);
JMF 12:0071cb144c7a 48 }
JMF 12:0071cb144c7a 49
JMF 12:0071cb144c7a 50 #define MBEDTLS_PLATFORM_STD_FREE platform_free_uninit
JMF 12:0071cb144c7a 51 #endif /* !MBEDTLS_PLATFORM_STD_FREE */
JMF 12:0071cb144c7a 52
JMF 12:0071cb144c7a 53 void * (*mbedtls_calloc)( size_t, size_t ) = MBEDTLS_PLATFORM_STD_CALLOC;
JMF 12:0071cb144c7a 54 void (*mbedtls_free)( void * ) = MBEDTLS_PLATFORM_STD_FREE;
JMF 12:0071cb144c7a 55
JMF 12:0071cb144c7a 56 int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
JMF 12:0071cb144c7a 57 void (*free_func)( void * ) )
JMF 12:0071cb144c7a 58 {
JMF 12:0071cb144c7a 59 mbedtls_calloc = calloc_func;
JMF 12:0071cb144c7a 60 mbedtls_free = free_func;
JMF 12:0071cb144c7a 61 return( 0 );
JMF 12:0071cb144c7a 62 }
JMF 12:0071cb144c7a 63 #endif /* MBEDTLS_PLATFORM_MEMORY */
JMF 12:0071cb144c7a 64
JMF 12:0071cb144c7a 65 #if defined(_WIN32)
JMF 12:0071cb144c7a 66 #include <stdarg.h>
JMF 12:0071cb144c7a 67 int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... )
JMF 12:0071cb144c7a 68 {
JMF 12:0071cb144c7a 69 int ret;
JMF 12:0071cb144c7a 70 va_list argp;
JMF 12:0071cb144c7a 71
JMF 12:0071cb144c7a 72 /* Avoid calling the invalid parameter handler by checking ourselves */
JMF 12:0071cb144c7a 73 if( s == NULL || n == 0 || fmt == NULL )
JMF 12:0071cb144c7a 74 return( -1 );
JMF 12:0071cb144c7a 75
JMF 12:0071cb144c7a 76 va_start( argp, fmt );
JMF 12:0071cb144c7a 77 #if defined(_TRUNCATE)
JMF 12:0071cb144c7a 78 ret = _vsnprintf_s( s, n, _TRUNCATE, fmt, argp );
JMF 12:0071cb144c7a 79 #else
JMF 12:0071cb144c7a 80 ret = _vsnprintf( s, n, fmt, argp );
JMF 12:0071cb144c7a 81 if( ret < 0 || (size_t) ret == n )
JMF 12:0071cb144c7a 82 {
JMF 12:0071cb144c7a 83 s[n-1] = '\0';
JMF 12:0071cb144c7a 84 ret = -1;
JMF 12:0071cb144c7a 85 }
JMF 12:0071cb144c7a 86 #endif
JMF 12:0071cb144c7a 87 va_end( argp );
JMF 12:0071cb144c7a 88
JMF 12:0071cb144c7a 89 return( ret );
JMF 12:0071cb144c7a 90 }
JMF 12:0071cb144c7a 91 #endif
JMF 12:0071cb144c7a 92
JMF 12:0071cb144c7a 93 #if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
JMF 12:0071cb144c7a 94 #if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
JMF 12:0071cb144c7a 95 /*
JMF 12:0071cb144c7a 96 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 97 */
JMF 12:0071cb144c7a 98 static int platform_snprintf_uninit( char * s, size_t n,
JMF 12:0071cb144c7a 99 const char * format, ... )
JMF 12:0071cb144c7a 100 {
JMF 12:0071cb144c7a 101 ((void) s);
JMF 12:0071cb144c7a 102 ((void) n);
JMF 12:0071cb144c7a 103 ((void) format);
JMF 12:0071cb144c7a 104 return( 0 );
JMF 12:0071cb144c7a 105 }
JMF 12:0071cb144c7a 106
JMF 12:0071cb144c7a 107 #define MBEDTLS_PLATFORM_STD_SNPRINTF platform_snprintf_uninit
JMF 12:0071cb144c7a 108 #endif /* !MBEDTLS_PLATFORM_STD_SNPRINTF */
JMF 12:0071cb144c7a 109
JMF 12:0071cb144c7a 110 int (*mbedtls_snprintf)( char * s, size_t n,
JMF 12:0071cb144c7a 111 const char * format,
JMF 12:0071cb144c7a 112 ... ) = MBEDTLS_PLATFORM_STD_SNPRINTF;
JMF 12:0071cb144c7a 113
JMF 12:0071cb144c7a 114 int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
JMF 12:0071cb144c7a 115 const char * format,
JMF 12:0071cb144c7a 116 ... ) )
JMF 12:0071cb144c7a 117 {
JMF 12:0071cb144c7a 118 mbedtls_snprintf = snprintf_func;
JMF 12:0071cb144c7a 119 return( 0 );
JMF 12:0071cb144c7a 120 }
JMF 12:0071cb144c7a 121 #endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
JMF 12:0071cb144c7a 122
JMF 12:0071cb144c7a 123 #if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
JMF 12:0071cb144c7a 124 #if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
JMF 12:0071cb144c7a 125 /*
JMF 12:0071cb144c7a 126 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 127 */
JMF 12:0071cb144c7a 128 static int platform_printf_uninit( const char *format, ... )
JMF 12:0071cb144c7a 129 {
JMF 12:0071cb144c7a 130 ((void) format);
JMF 12:0071cb144c7a 131 return( 0 );
JMF 12:0071cb144c7a 132 }
JMF 12:0071cb144c7a 133
JMF 12:0071cb144c7a 134 #define MBEDTLS_PLATFORM_STD_PRINTF platform_printf_uninit
JMF 12:0071cb144c7a 135 #endif /* !MBEDTLS_PLATFORM_STD_PRINTF */
JMF 12:0071cb144c7a 136
JMF 12:0071cb144c7a 137 int (*mbedtls_printf)( const char *, ... ) = MBEDTLS_PLATFORM_STD_PRINTF;
JMF 12:0071cb144c7a 138
JMF 12:0071cb144c7a 139 int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) )
JMF 12:0071cb144c7a 140 {
JMF 12:0071cb144c7a 141 mbedtls_printf = printf_func;
JMF 12:0071cb144c7a 142 return( 0 );
JMF 12:0071cb144c7a 143 }
JMF 12:0071cb144c7a 144 #endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
JMF 12:0071cb144c7a 145
JMF 12:0071cb144c7a 146 #if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
JMF 12:0071cb144c7a 147 #if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
JMF 12:0071cb144c7a 148 /*
JMF 12:0071cb144c7a 149 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 150 */
JMF 12:0071cb144c7a 151 static int platform_fprintf_uninit( FILE *stream, const char *format, ... )
JMF 12:0071cb144c7a 152 {
JMF 12:0071cb144c7a 153 ((void) stream);
JMF 12:0071cb144c7a 154 ((void) format);
JMF 12:0071cb144c7a 155 return( 0 );
JMF 12:0071cb144c7a 156 }
JMF 12:0071cb144c7a 157
JMF 12:0071cb144c7a 158 #define MBEDTLS_PLATFORM_STD_FPRINTF platform_fprintf_uninit
JMF 12:0071cb144c7a 159 #endif /* !MBEDTLS_PLATFORM_STD_FPRINTF */
JMF 12:0071cb144c7a 160
JMF 12:0071cb144c7a 161 int (*mbedtls_fprintf)( FILE *, const char *, ... ) =
JMF 12:0071cb144c7a 162 MBEDTLS_PLATFORM_STD_FPRINTF;
JMF 12:0071cb144c7a 163
JMF 12:0071cb144c7a 164 int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
JMF 12:0071cb144c7a 165 {
JMF 12:0071cb144c7a 166 mbedtls_fprintf = fprintf_func;
JMF 12:0071cb144c7a 167 return( 0 );
JMF 12:0071cb144c7a 168 }
JMF 12:0071cb144c7a 169 #endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
JMF 12:0071cb144c7a 170
JMF 12:0071cb144c7a 171 #if defined(MBEDTLS_PLATFORM_EXIT_ALT)
JMF 12:0071cb144c7a 172 #if !defined(MBEDTLS_PLATFORM_STD_EXIT)
JMF 12:0071cb144c7a 173 /*
JMF 12:0071cb144c7a 174 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 175 */
JMF 12:0071cb144c7a 176 static void platform_exit_uninit( int status )
JMF 12:0071cb144c7a 177 {
JMF 12:0071cb144c7a 178 ((void) status);
JMF 12:0071cb144c7a 179 }
JMF 12:0071cb144c7a 180
JMF 12:0071cb144c7a 181 #define MBEDTLS_PLATFORM_STD_EXIT platform_exit_uninit
JMF 12:0071cb144c7a 182 #endif /* !MBEDTLS_PLATFORM_STD_EXIT */
JMF 12:0071cb144c7a 183
JMF 12:0071cb144c7a 184 void (*mbedtls_exit)( int status ) = MBEDTLS_PLATFORM_STD_EXIT;
JMF 12:0071cb144c7a 185
JMF 12:0071cb144c7a 186 int mbedtls_platform_set_exit( void (*exit_func)( int status ) )
JMF 12:0071cb144c7a 187 {
JMF 12:0071cb144c7a 188 mbedtls_exit = exit_func;
JMF 12:0071cb144c7a 189 return( 0 );
JMF 12:0071cb144c7a 190 }
JMF 12:0071cb144c7a 191 #endif /* MBEDTLS_PLATFORM_EXIT_ALT */
JMF 12:0071cb144c7a 192
JMF 12:0071cb144c7a 193 #if defined(MBEDTLS_HAVE_TIME)
JMF 12:0071cb144c7a 194
JMF 12:0071cb144c7a 195 #if defined(MBEDTLS_PLATFORM_TIME_ALT)
JMF 12:0071cb144c7a 196 #if !defined(MBEDTLS_PLATFORM_STD_TIME)
JMF 12:0071cb144c7a 197 /*
JMF 12:0071cb144c7a 198 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 199 */
JMF 12:0071cb144c7a 200 static mbedtls_time_t platform_time_uninit( mbedtls_time_t* timer )
JMF 12:0071cb144c7a 201 {
JMF 12:0071cb144c7a 202 ((void) timer);
JMF 12:0071cb144c7a 203 return( 0 );
JMF 12:0071cb144c7a 204 }
JMF 12:0071cb144c7a 205
JMF 12:0071cb144c7a 206 #define MBEDTLS_PLATFORM_STD_TIME platform_time_uninit
JMF 12:0071cb144c7a 207 #endif /* !MBEDTLS_PLATFORM_STD_TIME */
JMF 12:0071cb144c7a 208
JMF 12:0071cb144c7a 209 mbedtls_time_t (*mbedtls_time)( mbedtls_time_t* timer ) = MBEDTLS_PLATFORM_STD_TIME;
JMF 12:0071cb144c7a 210
JMF 12:0071cb144c7a 211 int mbedtls_platform_set_time( mbedtls_time_t (*time_func)( mbedtls_time_t* timer ) )
JMF 12:0071cb144c7a 212 {
JMF 12:0071cb144c7a 213 mbedtls_time = time_func;
JMF 12:0071cb144c7a 214 return( 0 );
JMF 12:0071cb144c7a 215 }
JMF 12:0071cb144c7a 216 #endif /* MBEDTLS_PLATFORM_TIME_ALT */
JMF 12:0071cb144c7a 217
JMF 12:0071cb144c7a 218 #endif /* MBEDTLS_HAVE_TIME */
JMF 12:0071cb144c7a 219
JMF 12:0071cb144c7a 220 #if defined(MBEDTLS_ENTROPY_NV_SEED)
JMF 12:0071cb144c7a 221 #if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO)
JMF 12:0071cb144c7a 222 /* Default implementations for the platform independent seed functions use
JMF 12:0071cb144c7a 223 * standard libc file functions to read from and write to a pre-defined filename
JMF 12:0071cb144c7a 224 */
JMF 12:0071cb144c7a 225 int mbedtls_platform_std_nv_seed_read( unsigned char *buf, size_t buf_len )
JMF 12:0071cb144c7a 226 {
JMF 12:0071cb144c7a 227 FILE *file;
JMF 12:0071cb144c7a 228 size_t n;
JMF 12:0071cb144c7a 229
JMF 12:0071cb144c7a 230 if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "rb" ) ) == NULL )
JMF 12:0071cb144c7a 231 return -1;
JMF 12:0071cb144c7a 232
JMF 12:0071cb144c7a 233 if( ( n = fread( buf, 1, buf_len, file ) ) != buf_len )
JMF 12:0071cb144c7a 234 {
JMF 12:0071cb144c7a 235 fclose( file );
JMF 12:0071cb144c7a 236 return -1;
JMF 12:0071cb144c7a 237 }
JMF 12:0071cb144c7a 238
JMF 12:0071cb144c7a 239 fclose( file );
JMF 12:0071cb144c7a 240 return( n );
JMF 12:0071cb144c7a 241 }
JMF 12:0071cb144c7a 242
JMF 12:0071cb144c7a 243 int mbedtls_platform_std_nv_seed_write( unsigned char *buf, size_t buf_len )
JMF 12:0071cb144c7a 244 {
JMF 12:0071cb144c7a 245 FILE *file;
JMF 12:0071cb144c7a 246 size_t n;
JMF 12:0071cb144c7a 247
JMF 12:0071cb144c7a 248 if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "w" ) ) == NULL )
JMF 12:0071cb144c7a 249 return -1;
JMF 12:0071cb144c7a 250
JMF 12:0071cb144c7a 251 if( ( n = fwrite( buf, 1, buf_len, file ) ) != buf_len )
JMF 12:0071cb144c7a 252 {
JMF 12:0071cb144c7a 253 fclose( file );
JMF 12:0071cb144c7a 254 return -1;
JMF 12:0071cb144c7a 255 }
JMF 12:0071cb144c7a 256
JMF 12:0071cb144c7a 257 fclose( file );
JMF 12:0071cb144c7a 258 return( n );
JMF 12:0071cb144c7a 259 }
JMF 12:0071cb144c7a 260 #endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
JMF 12:0071cb144c7a 261
JMF 12:0071cb144c7a 262 #if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
JMF 12:0071cb144c7a 263 #if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ)
JMF 12:0071cb144c7a 264 /*
JMF 12:0071cb144c7a 265 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 266 */
JMF 12:0071cb144c7a 267 static int platform_nv_seed_read_uninit( unsigned char *buf, size_t buf_len )
JMF 12:0071cb144c7a 268 {
JMF 12:0071cb144c7a 269 ((void) buf);
JMF 12:0071cb144c7a 270 ((void) buf_len);
JMF 12:0071cb144c7a 271 return( -1 );
JMF 12:0071cb144c7a 272 }
JMF 12:0071cb144c7a 273
JMF 12:0071cb144c7a 274 #define MBEDTLS_PLATFORM_STD_NV_SEED_READ platform_nv_seed_read_uninit
JMF 12:0071cb144c7a 275 #endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_READ */
JMF 12:0071cb144c7a 276
JMF 12:0071cb144c7a 277 #if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE)
JMF 12:0071cb144c7a 278 /*
JMF 12:0071cb144c7a 279 * Make dummy function to prevent NULL pointer dereferences
JMF 12:0071cb144c7a 280 */
JMF 12:0071cb144c7a 281 static int platform_nv_seed_write_uninit( unsigned char *buf, size_t buf_len )
JMF 12:0071cb144c7a 282 {
JMF 12:0071cb144c7a 283 ((void) buf);
JMF 12:0071cb144c7a 284 ((void) buf_len);
JMF 12:0071cb144c7a 285 return( -1 );
JMF 12:0071cb144c7a 286 }
JMF 12:0071cb144c7a 287
JMF 12:0071cb144c7a 288 #define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE platform_nv_seed_write_uninit
JMF 12:0071cb144c7a 289 #endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_WRITE */
JMF 12:0071cb144c7a 290
JMF 12:0071cb144c7a 291 int (*mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len ) =
JMF 12:0071cb144c7a 292 MBEDTLS_PLATFORM_STD_NV_SEED_READ;
JMF 12:0071cb144c7a 293 int (*mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len ) =
JMF 12:0071cb144c7a 294 MBEDTLS_PLATFORM_STD_NV_SEED_WRITE;
JMF 12:0071cb144c7a 295
JMF 12:0071cb144c7a 296 int mbedtls_platform_set_nv_seed(
JMF 12:0071cb144c7a 297 int (*nv_seed_read_func)( unsigned char *buf, size_t buf_len ),
JMF 12:0071cb144c7a 298 int (*nv_seed_write_func)( unsigned char *buf, size_t buf_len ) )
JMF 12:0071cb144c7a 299 {
JMF 12:0071cb144c7a 300 mbedtls_nv_seed_read = nv_seed_read_func;
JMF 12:0071cb144c7a 301 mbedtls_nv_seed_write = nv_seed_write_func;
JMF 12:0071cb144c7a 302 return( 0 );
JMF 12:0071cb144c7a 303 }
JMF 12:0071cb144c7a 304 #endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
JMF 12:0071cb144c7a 305 #endif /* MBEDTLS_ENTROPY_NV_SEED */
JMF 12:0071cb144c7a 306
JMF 12:0071cb144c7a 307 #endif /* MBEDTLS_PLATFORM_C */