Phase 1 Freeze: C++ BLE Protocol Core

Date: 2026-05-17 Host: jp / zerodev1 / zerodev2 Project: ble-reticulum

Scope

Phase 1 extracted and validated the protocol-core portions of the BLE Reticulum implementation.

Accepted CORE symbols:

BLEFragmenter
BLEFragmenter.init
BLEFragmenter.fragment_packet
BLEFragmenter.get_fragment_overhead
BLEReassembler
BLEReassembler.init
BLEReassembler.receive_fragment
BLEReassembler._reassemble
BLEReassembler.cleanup_stale_buffers
BLEReassembler.get_statistics
BLEReassembler.reset_statistics
HDLCFramer
HDLCFramer.frame_packet
HDLCFramer.deframe_packet
BLEInterface._get_fragmenter_key
BLEInterface._compute_identity_hash

Evidence

Fragmentation/reassembly/HDLC C++ equivalence tests passed.
Backend shim tests passed.
Identity helper C++ equivalence tests passed.
ARM compile and tests passed on zerodev1 and zerodev2.
Bilateral US Constitution transfer field test succeeded using the C++ backend.
Transfer completed 100% in both directions.
No missing chunks.
No duplicate chunks.

Database status

SQLite migration database reports:

16 CORE symbols FIELD_ACCEPTED.
No remaining CORE symbols not accepted.
No UNKNOWN or NEEDS_REVIEW symbols.
No candidate next tasks remaining for Phase 1.

Freeze meaning

This freezes Phase 1 as a completed milestone.

Further changes to these accepted Phase 1 protocol-core functions should be treated as bug fixes or Phase 2 work, not as continuing Phase 1 development.

Next likely work

Potential Phase 2 investigation:

Determine whether BLEInterface._handle_identity_handshake can be split into:
- a pure protocol helper suitable for C++/Rust, and
- Python GLUE that performs Reticulum and driver state updates.

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