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FreeRTOS-Kernel/FreeRTOS/Test/CBMC/proofs/DHCP/DHCPProcess
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AniruddhaKanhere 4db195c916
Adding FreeRTOS+TCP CBMC proofs to FreeRTOS/FreeRTOS (#56) 
ParseDNSReply is to be added in the next PR.
2020-04-21 15:40:08 -07:00
..
DHCPProcess_harness.c Adding FreeRTOS+TCP CBMC proofs to FreeRTOS/FreeRTOS (#56) 2020-04-21 15:40:08 -07:00
Makefile.json Adding FreeRTOS+TCP CBMC proofs to FreeRTOS/FreeRTOS (#56) 2020-04-21 15:40:08 -07:00
README.md Adding FreeRTOS+TCP CBMC proofs to FreeRTOS/FreeRTOS (#56) 2020-04-21 15:40:08 -07:00

README.md

This is the memory safety proof for DHCPProcess function, which is the function that triggers the DHCP protocol.

The main stubs in this proof deal with buffer management, which assume that the buffer is large enough to accomodate a DHCP message plus a few additional bytes for options (which is the last, variable-sized field in a DHCP message). We have abstracted away sockets, concurrency and third-party code. For more details, please check the comments on the harness file.

This proof is a work-in-progress. Proof assumptions are described in the harness. The proof also assumes the following functions are memory safe and have no side effects relevant to the memory safety of this function:

  • FreeRTOS_sendto
  • FreeRTOS_setsockopt
  • FreeRTOS_socket
  • ulRand
  • vARPSendGratuitous
  • vApplicationIPNetworkEventHook
  • vLoggingPrintf
  • vPortEnterCritical
  • vPortExitCritical
  • vReleaseNetworkBufferAndDescriptor
  • vSocketBind
  • vSocketClose