Eric Tsai / mbedtls

Modified mbed TLS headers for AES functionality only to reduce build size

Dependents:   BLE_Gateway_Linker_fix BLE_Gateway

Fork of mbedtls by sandbox

source/platform.c@5:f09f5ed830ca, 2017-07-10 (annotated)

Committer:
electronichamsters
Date:
Mon Jul 10 04:00:25 2017 +0000
Revision:
5:f09f5ed830ca
Parent:
1:24750b9ad5ef 
working gateway

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 1:24750b9ad5ef 1 /*
Christopher Haster 1:24750b9ad5ef 2 * Platform abstraction layer
Christopher Haster 1:24750b9ad5ef 3 *
Christopher Haster 1:24750b9ad5ef 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
Christopher Haster 1:24750b9ad5ef 5 * SPDX-License-Identifier: Apache-2.0
Christopher Haster 1:24750b9ad5ef 6 *
Christopher Haster 1:24750b9ad5ef 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Christopher Haster 1:24750b9ad5ef 8 * not use this file except in compliance with the License.
Christopher Haster 1:24750b9ad5ef 9 * You may obtain a copy of the License at
Christopher Haster 1:24750b9ad5ef 10 *
Christopher Haster 1:24750b9ad5ef 11 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 1:24750b9ad5ef 12 *
Christopher Haster 1:24750b9ad5ef 13 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 1:24750b9ad5ef 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Christopher Haster 1:24750b9ad5ef 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 1:24750b9ad5ef 16 * See the License for the specific language governing permissions and
Christopher Haster 1:24750b9ad5ef 17 * limitations under the License.
Christopher Haster 1:24750b9ad5ef 18 *
Christopher Haster 1:24750b9ad5ef 19 * This file is part of mbed TLS (https://tls.mbed.org)
Christopher Haster 1:24750b9ad5ef 20 */
Christopher Haster 1:24750b9ad5ef 21
Christopher Haster 1:24750b9ad5ef 22 #if !defined(MBEDTLS_CONFIG_FILE)
Christopher Haster 1:24750b9ad5ef 23 #include "mbedtls/config.h"
Christopher Haster 1:24750b9ad5ef 24 #else
Christopher Haster 1:24750b9ad5ef 25 #include MBEDTLS_CONFIG_FILE
Christopher Haster 1:24750b9ad5ef 26 #endif
Christopher Haster 1:24750b9ad5ef 27
Christopher Haster 1:24750b9ad5ef 28 #if defined(MBEDTLS_PLATFORM_C)
Christopher Haster 1:24750b9ad5ef 29
Christopher Haster 1:24750b9ad5ef 30 #include "mbedtls/platform.h"
Christopher Haster 1:24750b9ad5ef 31
Christopher Haster 1:24750b9ad5ef 32 #if defined(MBEDTLS_PLATFORM_MEMORY)
Christopher Haster 1:24750b9ad5ef 33 #if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
Christopher Haster 1:24750b9ad5ef 34 static void *platform_calloc_uninit( size_t n, size_t size )
Christopher Haster 1:24750b9ad5ef 35 {
Christopher Haster 1:24750b9ad5ef 36 ((void) n);
Christopher Haster 1:24750b9ad5ef 37 ((void) size);
Christopher Haster 1:24750b9ad5ef 38 return( NULL );
Christopher Haster 1:24750b9ad5ef 39 }
Christopher Haster 1:24750b9ad5ef 40
Christopher Haster 1:24750b9ad5ef 41 #define MBEDTLS_PLATFORM_STD_CALLOC platform_calloc_uninit
Christopher Haster 1:24750b9ad5ef 42 #endif /* !MBEDTLS_PLATFORM_STD_CALLOC */
Christopher Haster 1:24750b9ad5ef 43
Christopher Haster 1:24750b9ad5ef 44 #if !defined(MBEDTLS_PLATFORM_STD_FREE)
Christopher Haster 1:24750b9ad5ef 45 static void platform_free_uninit( void *ptr )
Christopher Haster 1:24750b9ad5ef 46 {
Christopher Haster 1:24750b9ad5ef 47 ((void) ptr);
Christopher Haster 1:24750b9ad5ef 48 }
Christopher Haster 1:24750b9ad5ef 49
Christopher Haster 1:24750b9ad5ef 50 #define MBEDTLS_PLATFORM_STD_FREE platform_free_uninit
Christopher Haster 1:24750b9ad5ef 51 #endif /* !MBEDTLS_PLATFORM_STD_FREE */
Christopher Haster 1:24750b9ad5ef 52
Christopher Haster 1:24750b9ad5ef 53 void * (*mbedtls_calloc)( size_t, size_t ) = MBEDTLS_PLATFORM_STD_CALLOC;
Christopher Haster 1:24750b9ad5ef 54 void (*mbedtls_free)( void * ) = MBEDTLS_PLATFORM_STD_FREE;
Christopher Haster 1:24750b9ad5ef 55
Christopher Haster 1:24750b9ad5ef 56 int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
Christopher Haster 1:24750b9ad5ef 57 void (*free_func)( void * ) )
Christopher Haster 1:24750b9ad5ef 58 {
Christopher Haster 1:24750b9ad5ef 59 mbedtls_calloc = calloc_func;
Christopher Haster 1:24750b9ad5ef 60 mbedtls_free = free_func;
Christopher Haster 1:24750b9ad5ef 61 return( 0 );
Christopher Haster 1:24750b9ad5ef 62 }
Christopher Haster 1:24750b9ad5ef 63 #endif /* MBEDTLS_PLATFORM_MEMORY */
Christopher Haster 1:24750b9ad5ef 64
Christopher Haster 1:24750b9ad5ef 65 #if defined(_WIN32)
Christopher Haster 1:24750b9ad5ef 66 #include <stdarg.h>
Christopher Haster 1:24750b9ad5ef 67 int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... )
Christopher Haster 1:24750b9ad5ef 68 {
Christopher Haster 1:24750b9ad5ef 69 int ret;
Christopher Haster 1:24750b9ad5ef 70 va_list argp;
Christopher Haster 1:24750b9ad5ef 71
Christopher Haster 1:24750b9ad5ef 72 /* Avoid calling the invalid parameter handler by checking ourselves */
Christopher Haster 1:24750b9ad5ef 73 if( s == NULL || n == 0 || fmt == NULL )
Christopher Haster 1:24750b9ad5ef 74 return( -1 );
Christopher Haster 1:24750b9ad5ef 75
Christopher Haster 1:24750b9ad5ef 76 va_start( argp, fmt );
Christopher Haster 1:24750b9ad5ef 77 #if defined(_TRUNCATE)
Christopher Haster 1:24750b9ad5ef 78 ret = _vsnprintf_s( s, n, _TRUNCATE, fmt, argp );
Christopher Haster 1:24750b9ad5ef 79 #else
Christopher Haster 1:24750b9ad5ef 80 ret = _vsnprintf( s, n, fmt, argp );
Christopher Haster 1:24750b9ad5ef 81 if( ret < 0 || (size_t) ret == n )
Christopher Haster 1:24750b9ad5ef 82 {
Christopher Haster 1:24750b9ad5ef 83 s[n-1] = '\0';
Christopher Haster 1:24750b9ad5ef 84 ret = -1;
Christopher Haster 1:24750b9ad5ef 85 }
Christopher Haster 1:24750b9ad5ef 86 #endif
Christopher Haster 1:24750b9ad5ef 87 va_end( argp );
Christopher Haster 1:24750b9ad5ef 88
Christopher Haster 1:24750b9ad5ef 89 return( ret );
Christopher Haster 1:24750b9ad5ef 90 }
Christopher Haster 1:24750b9ad5ef 91 #endif
Christopher Haster 1:24750b9ad5ef 92
Christopher Haster 1:24750b9ad5ef 93 #if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
Christopher Haster 1:24750b9ad5ef 94 #if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
Christopher Haster 1:24750b9ad5ef 95 /*
Christopher Haster 1:24750b9ad5ef 96 * Make dummy function to prevent NULL pointer dereferences
Christopher Haster 1:24750b9ad5ef 97 */
Christopher Haster 1:24750b9ad5ef 98 static int platform_snprintf_uninit( char * s, size_t n,
Christopher Haster 1:24750b9ad5ef 99 const char * format, ... )
Christopher Haster 1:24750b9ad5ef 100 {
Christopher Haster 1:24750b9ad5ef 101 ((void) s);
Christopher Haster 1:24750b9ad5ef 102 ((void) n);
Christopher Haster 1:24750b9ad5ef 103 ((void) format);
Christopher Haster 1:24750b9ad5ef 104 return( 0 );
Christopher Haster 1:24750b9ad5ef 105 }
Christopher Haster 1:24750b9ad5ef 106
Christopher Haster 1:24750b9ad5ef 107 #define MBEDTLS_PLATFORM_STD_SNPRINTF platform_snprintf_uninit
Christopher Haster 1:24750b9ad5ef 108 #endif /* !MBEDTLS_PLATFORM_STD_SNPRINTF */
Christopher Haster 1:24750b9ad5ef 109
Christopher Haster 1:24750b9ad5ef 110 int (*mbedtls_snprintf)( char * s, size_t n,
Christopher Haster 1:24750b9ad5ef 111 const char * format,
Christopher Haster 1:24750b9ad5ef 112 ... ) = MBEDTLS_PLATFORM_STD_SNPRINTF;
Christopher Haster 1:24750b9ad5ef 113
Christopher Haster 1:24750b9ad5ef 114 int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
Christopher Haster 1:24750b9ad5ef 115 const char * format,
Christopher Haster 1:24750b9ad5ef 116 ... ) )
Christopher Haster 1:24750b9ad5ef 117 {
Christopher Haster 1:24750b9ad5ef 118 mbedtls_snprintf = snprintf_func;
Christopher Haster 1:24750b9ad5ef 119 return( 0 );
Christopher Haster 1:24750b9ad5ef 120 }
Christopher Haster 1:24750b9ad5ef 121 #endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
Christopher Haster 1:24750b9ad5ef 122
Christopher Haster 1:24750b9ad5ef 123 #if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
Christopher Haster 1:24750b9ad5ef 124 #if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
Christopher Haster 1:24750b9ad5ef 125 /*
Christopher Haster 1:24750b9ad5ef 126 * Make dummy function to prevent NULL pointer dereferences
Christopher Haster 1:24750b9ad5ef 127 */
Christopher Haster 1:24750b9ad5ef 128 static int platform_printf_uninit( const char *format, ... )
Christopher Haster 1:24750b9ad5ef 129 {
Christopher Haster 1:24750b9ad5ef 130 ((void) format);
Christopher Haster 1:24750b9ad5ef 131 return( 0 );
Christopher Haster 1:24750b9ad5ef 132 }
Christopher Haster 1:24750b9ad5ef 133
Christopher Haster 1:24750b9ad5ef 134 #define MBEDTLS_PLATFORM_STD_PRINTF platform_printf_uninit
Christopher Haster 1:24750b9ad5ef 135 #endif /* !MBEDTLS_PLATFORM_STD_PRINTF */
Christopher Haster 1:24750b9ad5ef 136
Christopher Haster 1:24750b9ad5ef 137 int (*mbedtls_printf)( const char *, ... ) = MBEDTLS_PLATFORM_STD_PRINTF;
Christopher Haster 1:24750b9ad5ef 138
Christopher Haster 1:24750b9ad5ef 139 int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) )
Christopher Haster 1:24750b9ad5ef 140 {
Christopher Haster 1:24750b9ad5ef 141 mbedtls_printf = printf_func;
Christopher Haster 1:24750b9ad5ef 142 return( 0 );
Christopher Haster 1:24750b9ad5ef 143 }
Christopher Haster 1:24750b9ad5ef 144 #endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
Christopher Haster 1:24750b9ad5ef 145
Christopher Haster 1:24750b9ad5ef 146 #if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
Christopher Haster 1:24750b9ad5ef 147 #if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
Christopher Haster 1:24750b9ad5ef 148 /*
Christopher Haster 1:24750b9ad5ef 149 * Make dummy function to prevent NULL pointer dereferences
Christopher Haster 1:24750b9ad5ef 150 */
Christopher Haster 1:24750b9ad5ef 151 static int platform_fprintf_uninit( FILE *stream, const char *format, ... )
Christopher Haster 1:24750b9ad5ef 152 {
Christopher Haster 1:24750b9ad5ef 153 ((void) stream);
Christopher Haster 1:24750b9ad5ef 154 ((void) format);
Christopher Haster 1:24750b9ad5ef 155 return( 0 );
Christopher Haster 1:24750b9ad5ef 156 }
Christopher Haster 1:24750b9ad5ef 157
Christopher Haster 1:24750b9ad5ef 158 #define MBEDTLS_PLATFORM_STD_FPRINTF platform_fprintf_uninit
Christopher Haster 1:24750b9ad5ef 159 #endif /* !MBEDTLS_PLATFORM_STD_FPRINTF */
Christopher Haster 1:24750b9ad5ef 160
Christopher Haster 1:24750b9ad5ef 161 int (*mbedtls_fprintf)( FILE *, const char *, ... ) =
Christopher Haster 1:24750b9ad5ef 162 MBEDTLS_PLATFORM_STD_FPRINTF;
Christopher Haster 1:24750b9ad5ef 163
Christopher Haster 1:24750b9ad5ef 164 int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
Christopher Haster 1:24750b9ad5ef 165 {
Christopher Haster 1:24750b9ad5ef 166 mbedtls_fprintf = fprintf_func;
Christopher Haster 1:24750b9ad5ef 167 return( 0 );
Christopher Haster 1:24750b9ad5ef 168 }
Christopher Haster 1:24750b9ad5ef 169 #endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
Christopher Haster 1:24750b9ad5ef 170
Christopher Haster 1:24750b9ad5ef 171 #if defined(MBEDTLS_PLATFORM_EXIT_ALT)
Christopher Haster 1:24750b9ad5ef 172 #if !defined(MBEDTLS_PLATFORM_STD_EXIT)
Christopher Haster 1:24750b9ad5ef 173 /*
Christopher Haster 1:24750b9ad5ef 174 * Make dummy function to prevent NULL pointer dereferences
Christopher Haster 1:24750b9ad5ef 175 */
Christopher Haster 1:24750b9ad5ef 176 static void platform_exit_uninit( int status )
Christopher Haster 1:24750b9ad5ef 177 {
Christopher Haster 1:24750b9ad5ef 178 ((void) status);
Christopher Haster 1:24750b9ad5ef 179 }
Christopher Haster 1:24750b9ad5ef 180
Christopher Haster 1:24750b9ad5ef 181 #define MBEDTLS_PLATFORM_STD_EXIT platform_exit_uninit
Christopher Haster 1:24750b9ad5ef 182 #endif /* !MBEDTLS_PLATFORM_STD_EXIT */
Christopher Haster 1:24750b9ad5ef 183
Christopher Haster 1:24750b9ad5ef 184 void (*mbedtls_exit)( int status ) = MBEDTLS_PLATFORM_STD_EXIT;
Christopher Haster 1:24750b9ad5ef 185
Christopher Haster 1:24750b9ad5ef 186 int mbedtls_platform_set_exit( void (*exit_func)( int status ) )
Christopher Haster 1:24750b9ad5ef 187 {
Christopher Haster 1:24750b9ad5ef 188 mbedtls_exit = exit_func;
Christopher Haster 1:24750b9ad5ef 189 return( 0 );
Christopher Haster 1:24750b9ad5ef 190 }
Christopher Haster 1:24750b9ad5ef 191 #endif /* MBEDTLS_PLATFORM_EXIT_ALT */
Christopher Haster 1:24750b9ad5ef 192
Christopher Haster 1:24750b9ad5ef 193 #endif /* MBEDTLS_PLATFORM_C */