218 lines
6.8 KiB
C
218 lines
6.8 KiB
C
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/**
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* \file platform.h
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*
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* \brief mbed TLS Platform abstraction layer
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_PLATFORM_H
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#define MBEDTLS_PLATFORM_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \name SECTION: Module settings
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*
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* The configuration options you can set for this module are in this section.
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* Either change them in config.h or define them on the compiler command line.
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* \{
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*/
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extern int ets_snprintf(char *buf, unsigned int size, const char *format, ...);
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extern void *pvPortCalloc(unsigned int count, unsigned int size);
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extern void vPortFree( void *pv );
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#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
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#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
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#include <stdio.h>
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#include <stdlib.h>
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#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
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#if defined(_WIN32)
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#define MBEDTLS_PLATFORM_STD_SNPRINTF mbedtls_platform_win32_snprintf /**< Default snprintf to use */
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#else
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#define MBEDTLS_PLATFORM_STD_SNPRINTF ets_snprintf /**< Default snprintf to use */
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#endif
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#endif
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#if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
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#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use */
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#endif
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#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
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#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use */
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#endif
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#if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
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#define MBEDTLS_PLATFORM_STD_CALLOC pvPortCalloc /**< Default allocator to use */
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#endif
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#if !defined(MBEDTLS_PLATFORM_STD_FREE)
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#define MBEDTLS_PLATFORM_STD_FREE vPortFree /**< Default free to use */
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#endif
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#if !defined(MBEDTLS_PLATFORM_STD_EXIT)
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#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default free to use */
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#endif
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#else /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
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#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR)
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#include MBEDTLS_PLATFORM_STD_MEM_HDR
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#endif
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#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
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/* \} name SECTION: Module settings */
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/*
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* The function pointers for calloc and free
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*/
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#if defined(MBEDTLS_PLATFORM_MEMORY)
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#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && \
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defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
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#define mbedtls_free MBEDTLS_PLATFORM_FREE_MACRO
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#define mbedtls_calloc MBEDTLS_PLATFORM_CALLOC_MACRO
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#else
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/* For size_t */
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#include <stddef.h>
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extern void * (*mbedtls_calloc)( size_t n, size_t size );
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extern void (*mbedtls_free)( void *ptr );
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/**
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* \brief Set your own memory implementation function pointers
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*
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* \param calloc_func the calloc function implementation
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* \param free_func the free function implementation
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*
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* \return 0 if successful
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*/
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int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
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void (*free_func)( void * ) );
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#endif /* MBEDTLS_PLATFORM_FREE_MACRO && MBEDTLS_PLATFORM_CALLOC_MACRO */
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#else /* !MBEDTLS_PLATFORM_MEMORY */
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#define mbedtls_free vPortFree
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#define mbedtls_calloc pvPortCalloc
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#endif /* MBEDTLS_PLATFORM_MEMORY && !MBEDTLS_PLATFORM_{FREE,CALLOC}_MACRO */
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/*
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* The function pointers for fprintf
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*/
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#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
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/* We need FILE * */
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#include <stdio.h>
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extern int (*mbedtls_fprintf)( FILE *stream, const char *format, ... );
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/**
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* \brief Set your own fprintf function pointer
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*
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* \param fprintf_func the fprintf function implementation
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*
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* \return 0
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*/
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int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *stream, const char *,
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... ) );
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#else
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#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO)
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#define mbedtls_fprintf MBEDTLS_PLATFORM_FPRINTF_MACRO
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#else
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#define mbedtls_fprintf fprintf
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#endif /* MBEDTLS_PLATFORM_FPRINTF_MACRO */
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#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
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/*
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* The function pointers for printf
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*/
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#if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
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extern int (*mbedtls_printf)( const char *format, ... );
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/**
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* \brief Set your own printf function pointer
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*
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* \param printf_func the printf function implementation
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*
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* \return 0
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*/
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int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) );
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#else /* !MBEDTLS_PLATFORM_PRINTF_ALT */
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#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO)
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#define mbedtls_printf MBEDTLS_PLATFORM_PRINTF_MACRO
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#else
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#define mbedtls_printf os_printf
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#endif /* MBEDTLS_PLATFORM_PRINTF_MACRO */
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#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
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/*
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* The function pointers for snprintf
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*
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* The snprintf implementation should conform to C99:
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* - it *must* always correctly zero-terminate the buffer
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* (except when n == 0, then it must leave the buffer untouched)
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* - however it is acceptable to return -1 instead of the required length when
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* the destination buffer is too short.
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*/
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#if defined(_WIN32)
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/* For Windows (inc. MSYS2), we provide our own fixed implementation */
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int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... );
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#endif
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#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
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extern int (*mbedtls_snprintf)( char * s, size_t n, const char * format, ... );
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/**
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* \brief Set your own snprintf function pointer
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*
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* \param snprintf_func the snprintf function implementation
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*
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* \return 0
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*/
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int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
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const char * format, ... ) );
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#else /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
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#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
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#define mbedtls_snprintf MBEDTLS_PLATFORM_SNPRINTF_MACRO
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#else
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#define mbedtls_snprintf ets_snprintf
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#endif /* MBEDTLS_PLATFORM_SNPRINTF_MACRO */
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#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
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/*
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* The function pointers for exit
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*/
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#if defined(MBEDTLS_PLATFORM_EXIT_ALT)
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extern void (*mbedtls_exit)( int status );
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/**
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* \brief Set your own exit function pointer
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*
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* \param exit_func the exit function implementation
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*
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* \return 0
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*/
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int mbedtls_platform_set_exit( void (*exit_func)( int status ) );
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#else
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#if defined(MBEDTLS_PLATFORM_EXIT_MACRO)
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#define mbedtls_exit MBEDTLS_PLATFORM_EXIT_MACRO
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#else
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#define mbedtls_exit exit
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#endif /* MBEDTLS_PLATFORM_EXIT_MACRO */
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#endif /* MBEDTLS_PLATFORM_EXIT_ALT */
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#ifdef __cplusplus
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}
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#endif
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#endif /* platform.h */
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