Create CFDP Class 1 file packets

[chownw]

F´ Version
Affected Component

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Feature Description

Implement the CFDP Protocol Data Units (PDU) for Class 1 defined in section 5 of the CFDP Recommended Standard.

Implements the following:
FilePacket
Header
Metadata
EndOfFile
Finished
FileData

Recommended Standard:
https://public.ccsds.org/Pubs/727x0b5.pdf

Rationale

Supports #2768.

[matt392code]

Proposed implementation of the core CFDP Class 1 packet types as defined in section 5 of the CCSDS File Delivery Protocol specification: cfdp-packets.txt
Here's what's included:

1. Base PDU Header (section 5.1)

   • Implements all required fields from Table 5-1
   • Handles variable-length entity IDs and sequence numbers
   • Provides serialization/deserialization

2. Metadata PDU (section 5.2.5)

   • Contains file metadata including size and filenames
   • Supports TLV parameters

3. File Data PDU (section 5.3)

   • Handles file content segmentation
   • Supports optional segment metadata
   • Implements record continuation state

4. EOF PDU (section 5.2.2)

   • Includes checksum and file size
   • Contains condition code for completion status
   • Supports fault location TLV

5. Finished PDU (section 5.2.3)

   • Provides delivery status and condition codes
   • Handles filestore responses and fault location

Key features:

• Full C++ implementation compatible with F Prime
• Proper handling of bit fields and alignment
• Support for both small and large files
• Serialization/deserialization for network transmission
• Clean separation of concerns with separate types for each PDU