jlpoole/ble-reticulum
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Author SHA1 Message Date
torlando-tech
799b91122f fix(tests): update tests for driver callback signature and Python 3.14 compatibility 
- Fix BLEInterface.handle_peripheral_data to use _compute_identity_hash
  instead of RNS.Identity.full_hash for consistent identity hash computation
- Update MockBLEDriver.on_device_connected callback to match the
  (address, peer_identity) signature in bluetooth_driver.py
- Fix test_v2_2_identity_handshake.py and test_v2_2_race_conditions.py
  to properly mock ble_reticulum.Interface without breaking the namespace
- Use BLEFragmenter/BLEReassembler directly in tests instead of
  non-existent _create_fragmenter/_create_reassembler methods
- Fix asyncio.get_event_loop() deprecation in test_ble_peer_interface.py
  for Python 3.10+ compatibility
- Update MAC address test fixtures to account for v2.2 MAC sorting logic
- Fix test_peer_address_mac_rotation to properly simulate MAC rotation
  where old connection is dropped before new one arrives

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-18 01:26:57 -05:00
torlando-tech
5947544cd7 test: fix test suite for BLE interface changes 
- Fix mock_ble_driver.py import path (src/RNS/Interfaces -> src/ble_reticulum)
- Add address_to_interface, _pending_detach, _pending_detach_grace_period to test fixture
- Update test_identity_cache to expect grace period behavior (deferred cleanup)
- Update test_v2_2_mac_sorting to use renamed _cleanup_stale_address function

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-01 14:03:59 -05:00
torlando-tech
12eafcdffc fix(ble): Prevent data loss from peripheral reassembler race condition 
Reorder operations in handle_peripheral_data() to create
fragmenter/reassembler BEFORE spawning peer interface. This
prevents data from being dropped during the brief window when
the interface exists but the reassembler doesn't.

Also adds unit tests to verify the fix and prevent regression.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-26 12:21:42 -05:00
torlando-tech
63064ccf3a Refactor BLEInterface to driver-based architecture 
Major architectural refactoring to separate high-level Reticulum protocol
logic from platform-specific Bluetooth operations. This enables code sharing
between pure Python and Android (Columba) implementations, improves
testability, and creates a clean boundary for future platform support.

ARCHITECTURE CHANGES:

1. **Driver Abstraction Layer**
   - Created BLEDriverInterface (bluetooth_driver.py) defining the contract
     for all platform-specific BLE drivers
   - Abstraction includes 18 methods + 6 callbacks for complete BLE lifecycle
   - Enhanced BLEDevice dataclass with service_uuids and manufacturer_data
   - Added on_mtu_negotiated callback for delayed MTU reporting
   - Added on_error callback for consistent platform error reporting

2. **Linux Driver Implementation**
   - Created LinuxBluetoothDriver (linux_bluetooth_driver.py, 1534 lines)
   - Moved ALL bleak/bluezero/D-Bus code from BLEInterface
   - Preserves 5 critical platform workarounds:
     * BlueZ ServicesResolved race condition patch
     * D-Bus LE-only connection (ConnectDevice)
     * BLE Agent registration for Just Works pairing
     * MTU negotiation with 3-method fallback
     * Service discovery delay for bluezero timing
   - Role-aware send() automatically chooses GATT write vs notification
   - Dedicated asyncio event loop management in separate thread
   - Configuration via constructor (no Reticulum dependencies)

3. **Refactored BLEInterface**
   - Removed 801 lines (32.3% reduction: 2479 → 1678 lines)
   - Removed all platform-specific imports (bleak, bluezero, dbus_fast)
   - Removed 9 async methods (moved to driver)
   - Driver dependency injection via constructor
   - Implemented 6 driver callbacks for event handling
   - PRESERVED high-level logic:
     * Peer scoring algorithm (RSSI + history + recency)
     * Connection blacklist with exponential backoff
     * MAC-based connection direction (prevents dual connections)
     * Fragmentation/reassembly orchestration (identity-based keying)
     * Interface spawning per peer

4. **Simplified BLEPeerInterface**
   - Removed connection_type, client, mtu parameters
   - Deleted _send_via_central() and _send_via_peripheral() methods
   - Single send path via driver.send() (driver handles role routing)
   - 77 lines removed from peer interface class

5. **Mock Driver for Testing**
   - Created MockBLEDriver (tests/mock_ble_driver.py)
   - Complete BLEDriverInterface implementation without hardware
   - Bidirectional communication via link_drivers()
   - Enables unit testing of BLEInterface logic (fragmentation, reassembly,
     peer lifecycle, blacklist management)

CRITICAL FIXES:

1. **Restored Periodic Cleanup Task** (CRITICAL: prevents memory leaks)
   - Converted from async (driver-owned loop) to threading.Timer
   - Runs every 30 seconds to clean stale reassembly buffers
   - Essential for long-running instances (Pi Zero with 512MB RAM)
   - Properly cancelled in detach() for clean shutdown

2. **Fixed Naming Consistency**
   - Renamed processOutgoing → process_outgoing (snake_case)

FILES MODIFIED:
- src/RNS/Interfaces/BLEInterface.py (refactored, -801 lines)

FILES ADDED:
- bluetooth_driver.py (driver abstraction interface)
- linux_bluetooth_driver.py (Linux/BlueZ implementation, 1534 lines)
- tests/mock_ble_driver.py (mock driver for unit tests)
- REFACTORING_GUIDE.md (comprehensive refactoring documentation)
- BLE_PROTOCOL_v2.2.md (protocol specification)
- tests/test_refactor_suite.py (initial test suite)

BENEFITS:

1. **Testability** - Mock driver enables hardware-free unit testing
2. **Portability** - Easy to create Android/Windows/macOS drivers
3. **Maintainability** - Platform quirks isolated in single driver file
4. **Code Sharing** - High-level logic shared across all platforms
5. **Clean Architecture** - Clear separation of concerns

TESTING REQUIRED:

- Tier 1 (Unit): Test with MockBLEDriver (fragmentation, reassembly, lifecycle)
- Tier 2 (Integration): Test on Raspberry Pi hardware (scanning, connecting,
  dual mode, MTU negotiation, identity exchange)
- Tier 3 (Regression): Full Reticulum stack (announces, LXMF, multi-hop)
- Tier 4 (Edge Cases): MAC rotation, identity handshake, reconnection,
  reassembly timeout, discovery cache pruning

BACKWARD COMPATIBILITY:

- Configuration: Fully backward compatible (same config parameters)
- Protocol: No changes to BLE wire protocol (v2.2)
- Interface API: Unchanged for Reticulum Transport integration

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Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-03 23:15:22 -05:00