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CFDP Manager Attribution

This component implements the CCSDS File Delivery Protocol (CFDP) for F-Prime (F'). It includes both ported code from NASA's Core Flight System (cFS) CFDP application and new F' implementations.

Source Attribution

Portions of this code are derived from the NASA Core Flight System (cFS) CFDP (CF) Application:

  • Repository: https://github.com/nasa/CF
  • Version: 3.0.0
  • License: Apache License 2.0
  • Copyright: Copyright (c) 2019 United States Government as represented by the Administrator of the National Aeronautics and Space Administration
  • NASA Docket: GSC-18,447-1

Files Ported from CF

The following files are ports/adaptations from CF source code and retain the original NASA copyright:

Core Engine & Transaction Management

  • Engine.hpp / .cpp - from cf_cfdp.c / cf_cfdp.h
  • Transaction.hpp - from cf_cfdp_r.h / cf_cfdp_s.h / cf_cfdp_dispatch.h
  • TransactionTx.cpp - from cf_cfdp_s.c / cf_cfdp_dispatch.c
  • TransactionRx.cpp - from cf_cfdp_r.c / cf_cfdp_dispatch.c

Data Structures & Utilities

  • Types/Types.hpp - from cf_cfdp_types.h
  • Utils.hpp / .cpp - from cf_utils.h / cf_utils.c
  • Channel.hpp / .cpp - from channel functions in cf_cfdp.c / cf_utils.c
  • Chunk.hpp / .cpp - from cf_chunks.h / cf_chunks.c
  • Clist.hpp / .cpp - from cf_clist.h / cf_clist.c

Each of these files includes the full NASA copyright notice and Apache 2.0 license text in its header.

New F-Prime Implementations

The following files are new implementations for F-Prime and do not contain CF-derived code:

Integration Layer

  • CfdpManager.hpp / .cpp - F-Prime component wrapper
  • Timer.hpp / .cpp - F-Prime timer implementation

PDU Object-Oriented Implementation

All files in the Types/ directory are new F' serializable implementations based on the CFDP Blue Book specification (CCSDS 727.0-B-5):

  • Types/PduBase.hpp - Base class for all PDU types
  • Types/PduHeader.hpp / .cpp - PDU header encoding/decoding
  • Types/MetadataPdu.hpp / .cpp - Metadata PDU
  • Types/FileDataPdu.hpp / .cpp - File Data PDU
  • Types/EofPdu.hpp / .cpp - End of File PDU
  • Types/FinPdu.hpp / .cpp - Finished PDU
  • Types/AckPdu.hpp / .cpp - Acknowledge PDU
  • Types/NakPdu.hpp / .cpp - Negative Acknowledge PDU

These files implement CFDP PDU encoding/decoding based on the specification rather than porting CF's C-style codec.

License

This component as a whole is licensed under the Apache License 2.0. See the top-level LICENSE.txt for the full license text.

The CF-derived portions retain their original NASA copyright and Apache 2.0 license as documented in their file headers.