This repo holds a naive, partial implementation of the CCSDS File Delivery Protocol in Go. It implements a very small subset of the full spec, including:

• Unacknowledged transaction types.
• A minimal set of PDUs needed to support Copy File operations.
• TLV, LV value encoding.
• End-to-end testing for a ListDirectory operation.
• Support for UDP transport.
• CRC32, Proximity-1 CRC and modular checksums.

• CFPD spec
• Notes & papers on real-world deployments:
  • James Webb Space Telescope - L2 Communications for Science Data Processing
  • LRO (Lunar Reconnaissance Orbiter)
  • NASA Ground Network Support of the Lunar Reconnaissance Orbiter
  • Ground-space communication solution for the European Space Agency (ESA)
  • File Based Operations - Architectures and the EUCLID Example