/* * FreeRTOS memory safety proofs with CBMC. * Copyright (C) 2022 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_ND.h" /* CBMC includes. */ #include "../../utility/memory_assignments.c" #include "cbmc.h" /**************************************************************** * Signature of the function under test ****************************************************************/ ICMPPrefixOption_IPv6_t * __CPROVER_file_local_FreeRTOS_RA_c_vReceiveRA_ReadReply( const NetworkBufferDescriptor_t * pxNetworkBuffer ); void harness() { NetworkBufferDescriptor_t * pxNetworkBuffer = ensure_FreeRTOS_NetworkBuffer_is_allocated(); uint8_t * pucBytes; size_t uxNeededSize = ipSIZE_OF_ETH_HEADER + ipSIZE_OF_IPv6_HEADER + sizeof( ICMPRouterAdvertisement_IPv6_t ); size_t uxDataLen = 8; ICMPPrefixOption_IPv6_t * pxReturn; /* The code does not expect pxNetworkBuffer to be NULL. */ __CPROVER_assume( pxNetworkBuffer != NULL ); /* Allocates min. buffer size + 8 bytes required for the proof */ pxNetworkBuffer->xDataLength = uxNeededSize + uxDataLen; pxNetworkBuffer->pucEthernetBuffer = safeMalloc( uxNeededSize + uxDataLen ); __CPROVER_assume( pxNetworkBuffer->pucEthernetBuffer != NULL ); pxNetworkBuffer->pxInterface = safeMalloc( sizeof( NetworkInterface_t ) ); __CPROVER_assume( pxNetworkBuffer->pxInterface != NULL ); pxReturn = __CPROVER_file_local_FreeRTOS_RA_c_vReceiveRA_ReadReply( pxNetworkBuffer ); }