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/*
* FreeRTOS V202107.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/**
* @file mbedtls_bio_freertos_cellular.c
* @brief Implements mbed TLS platform send/receive functions for cellular.
*/
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "FreeRTOS_Sockets.h"
/* mbed TLS includes. */
#include "mbedtls_config.h"
#include "threading_alt.h"
#include "mbedtls/entropy.h"
#include "mbedtls/ssl.h"
/*-----------------------------------------------------------*/
/**
* @brief Sends data over cellular sockets.
*
* @param[in] ctx The network context containing the socket handle.
* @param[in] buf Buffer containing the bytes to send.
* @param[in] len Number of bytes to send from the buffer.
*
* @return Number of bytes sent on success; else a negative value.
*/
int mbedtls_cellular_send( void * ctx,
const unsigned char * buf,
size_t len )
{
configASSERT( ctx != NULL );
configASSERT( buf != NULL );
return Sockets_Send( ( Socket_t ) ctx, buf, len );
}
/*-----------------------------------------------------------*/
/**
* @brief Receives data from cellular socket.
*
* @param[in] ctx The network context containing the socket handle.
* @param[out] buf Buffer to receive bytes into.
* @param[in] len Number of bytes to receive from the network.
*
* @return Number of bytes received if successful; Negative value on error.
*/
int mbedtls_cellular_recv( void * ctx,
unsigned char * buf,
size_t len )
{
int recvStatus = 0;
int returnStatus = -1;
configASSERT( ctx != NULL );
configASSERT( buf != NULL );
recvStatus = Sockets_Recv( ( Socket_t ) ctx, buf, len );
if( recvStatus < 0 )
{
returnStatus = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
}
else
{
returnStatus = recvStatus;
}
return returnStatus;
}
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