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cdf6d93cb9
Some proofs assume that some pointers returned by malloc are not NULL. This patch modifies those proofs to make these assumptions explicit with `__CPROVER_assume(pointer != NULL)` for all such pointers. Co-authored-by: Mark R. Tuttle <mrtuttle@amazon.com> Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>
36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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#include "queue.h"
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/* FreeRTOS+TCP includes. */
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#include "FreeRTOS_IP.h"
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#include "FreeRTOS_IP_Private.h"
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/* proof is done separately */
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BaseType_t xProcessReceivedTCPPacket(NetworkBufferDescriptor_t *pxNetworkBuffer) { }
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/* proof is done separately */
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BaseType_t xProcessReceivedUDPPacket(NetworkBufferDescriptor_t *pxNetworkBuffer, uint16_t usPort) { }
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/* This proof was done before. Hence we assume it to be correct here. */
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void vARPRefreshCacheEntry( const MACAddress_t * pxMACAddress, const uint32_t ulIPAddress ) { }
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eFrameProcessingResult_t publicProcessIPPacket( IPPacket_t * const pxIPPacket, NetworkBufferDescriptor_t * const pxNetworkBuffer);
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void harness() {
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NetworkBufferDescriptor_t * const pxNetworkBuffer = malloc(sizeof(NetworkBufferDescriptor_t));
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__CPROVER_assume(pxNetworkBuffer != NULL);
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/* Pointer to the start of the Ethernet frame. It should be able to access the whole Ethernet frame.*/
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pxNetworkBuffer->pucEthernetBuffer = malloc(ipTOTAL_ETHERNET_FRAME_SIZE);
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__CPROVER_assume(pxNetworkBuffer->pucEthernetBuffer != NULL);
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/* Minimum length of the pxNetworkBuffer->xDataLength is at least the size of the IPPacket_t. */
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__CPROVER_assume(pxNetworkBuffer->xDataLength >= sizeof(IPPacket_t) && pxNetworkBuffer->xDataLength <= ipTOTAL_ETHERNET_FRAME_SIZE);
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IPPacket_t * const pxIPPacket = malloc(sizeof(IPPacket_t));
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__CPROVER_assume(pxIPPacket != NULL);
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publicProcessIPPacket(pxIPPacket, pxNetworkBuffer);
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}
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