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/*
* FreeRTOS memory safety proofs with CBMC.
* Copyright (C) 2019 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.
*
* http://aws.amazon.com/freertos
* http://www.FreeRTOS.org
*/
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "queue.h"
/* FreeRTOS+TCP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_IP_Private.h"
#include "FreeRTOS_TCP_IP.h"
#include "FreeRTOS_Stream_Buffer.h"
#include "../../utility/memory_assignments.c"
/* This proof assumes that pxGetNetworkBufferWithDescriptor is implemented correctly. */
int32_t publicTCPPrepareSend( FreeRTOS_Socket_t *pxSocket, NetworkBufferDescriptor_t **ppxNetworkBuffer, UBaseType_t uxOptionsLength );
/* Abstraction of pxGetNetworkBufferWithDescriptor. It creates a buffer. */
NetworkBufferDescriptor_t *pxGetNetworkBufferWithDescriptor( size_t xRequestedSizeBytes, TickType_t xBlockTimeTicks ){
NetworkBufferDescriptor_t *pxBuffer = ensure_FreeRTOS_NetworkBuffer_is_allocated ();
size_t bufferSize = sizeof(NetworkBufferDescriptor_t);
if (ensure_memory_is_valid(pxBuffer, bufferSize)) {
/* The code does not expect pucEthernetBuffer to be equal to NULL if
pxBuffer is not NULL. */
pxBuffer->pucEthernetBuffer = malloc(xRequestedSizeBytes);
pxBuffer->xDataLength = xRequestedSizeBytes;
}
return pxBuffer;
}
void harness() {
FreeRTOS_Socket_t *pxSocket = ensure_FreeRTOS_Socket_t_is_allocated();
NetworkBufferDescriptor_t *pxNetworkBuffer = ensure_FreeRTOS_NetworkBuffer_is_allocated();
size_t socketSize = sizeof(FreeRTOS_Socket_t);
size_t bufferSize = sizeof(TCPPacket_t);
if (ensure_memory_is_valid(pxNetworkBuffer, sizeof(*pxNetworkBuffer))) {
pxNetworkBuffer->xDataLength = bufferSize;
/* The code does not expect pucEthernetBuffer to be equal to NULL if
pxNetworkBuffer is not NULL. */
pxNetworkBuffer->pucEthernetBuffer = malloc(bufferSize);
}
UBaseType_t uxOptionsLength;
if(pxSocket) {
publicTCPPrepareSend(pxSocket, &pxNetworkBuffer, uxOptionsLength );
}
}
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