Claude
acd6ee93df
Drop plugins.rs module and its sha2/hex/libc dependencies. Plugin system was not part of the codebase — mark P0 and P3 plugin items as dropped in improvement areas doc. https://claude.ai/code/session_01Gj1vEkP6GKVcVaMqzFW885 Signed-off-by: Claude <noreply@anthropic.com>
160 lines
6.3 KiB
Markdown
160 lines
6.3 KiB
Markdown
# Improvement Areas
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A comprehensive audit of the trx-rs codebase covering code quality, architecture,
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security, testing, and performance. Each item includes the affected location and
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a suggested fix.
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*Last updated: 2026-03-29*
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---
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## Critical (P0)
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### ~~Plugin signing and cross-platform validation~~ — DROPPED
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Plugin system has been removed from the codebase. No longer applicable.
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---
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## High Priority (P1)
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### ~~Session store mutex poisoning (auth.rs)~~ — RESOLVED
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**Location:** `src/trx-client/trx-frontend/trx-frontend-http/src/auth.rs`
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**Resolution:** All 6 `.write().unwrap()` / `.lock().unwrap()` calls replaced with
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`.unwrap_or_else(|e| { warn!(...); e.into_inner() })` pattern. Lock poisoning now
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logs a warning and recovers the inner data instead of crashing.
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### ~~No rate limiting on TCP listener~~ — RESOLVED
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**Location:** `src/trx-server/src/listener.rs`
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**Resolution:** Added `ConnectionTracker` with per-IP connection limiting
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(default: 10 concurrent connections per IP). Connections exceeding the limit
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are rejected with a log warning. Slots are released when clients disconnect.
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### ~~RigState is a 33-field flat struct~~ — RESOLVED
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**Location:** `src/trx-core/src/rig/state.rs`
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**Resolution:** Decoder fields grouped into two sub-structs:
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- `DecoderConfig`: 8 `*_decode_enabled` bool fields
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- `DecoderResetSeqs`: 8 `*_decode_reset_seq` u64 counters
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Both use `#[serde(flatten)]` to maintain backward-compatible JSON wire format.
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Updated across all consumers: `rig_task.rs`, `audio.rs`, `api.rs`,
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`remote_client.rs`, `server.rs` (rigctl, http-json), `codec.rs`.
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### ~~No `spawn_blocking` timeout~~ — RESOLVED
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**Location:** `src/trx-server/src/listener.rs`
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**Resolution:** Satellite pass computation wrapped in `tokio::time::timeout(30s, ...)`
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with graceful fallback to empty results on timeout or panic.
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---
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## Medium Priority (P2)
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### ~~Command handler boilerplate~~ — RESOLVED
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**Location:** `src/trx-core/src/rig/controller/handlers.rs`
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**Resolution:** Created `rig_command!` declarative macro that generates unit-struct
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command implementations from a concise table of (name, preconditions, execute body).
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7 unit commands (PowerOn, PowerOff, ToggleVfo, Lock, Unlock, GetTxLimit,
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GetSnapshot) now use the macro. Commands with custom fields/validation (SetFreq,
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SetMode, SetPtt, SetTxLimit) remain as explicit impls.
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### ~~No command execution timeouts at CommandExecutor level~~ — ALREADY RESOLVED
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**Location:** `src/trx-server/src/rig_task.rs`
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`tokio::time::timeout(command_exec_timeout, process_command(...))` already wraps
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all command execution (lines 370–425). Default timeout: 10s. No further changes
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needed.
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### ~~No forward compatibility in protocol~~ — RESOLVED
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**Location:** `src/trx-protocol/src/types.rs`, `src/trx-protocol/src/codec.rs`
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**Resolution:**
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- Added optional `protocol_version: Option<u32>` to both `ClientEnvelope` and
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`ClientResponse` (current version: 1, defined as `PROTOCOL_VERSION` constant).
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- `parse_envelope()` now distinguishes between truly malformed JSON and valid
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JSON with an unrecognised `cmd` value, enabling clearer error messages.
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### ~~`unsafe` string construction in spectrum encoding~~ — RESOLVED
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**Location:** `src/trx-client/trx-frontend/trx-frontend-http/src/api.rs:63`
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**Resolution:** Replaced `unsafe { String::from_utf8_unchecked(out) }` with
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`String::from_utf8(out).expect("base64 output is always valid ASCII")`.
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### ~~6 `#[allow(dead_code)]` annotations~~ — RESOLVED
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**Resolution:**
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- `is_tx_endpoint` in auth.rs: made `pub` and removed annotation (used in tests,
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available for TX access control integration).
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- `session_ttl()` in config.rs: removed annotation (public API method).
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- `device` in real_iq_source.rs: annotation kept (lifetime anchor for stream).
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- `iq_tx` in vchan_impl.rs: annotation kept (broadcast sender kept alive).
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- `fixed_slot_count` in vchan_impl.rs: annotation kept (documents reserved slots).
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- `process_pair` in demod.rs: annotation kept (stereo AGC variant for future use).
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---
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## Low Priority (P3)
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### ~~Missing tests for critical modules~~ — PARTIALLY RESOLVED
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- `history_store.rs`: Added 4 unit tests covering timestamp generation,
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serde round-trip, save/load round-trip, and expiry filtering.
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- `audio.rs`, `api.rs`, `main.rs`: Remain without tests (require ALSA/hardware
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mocking infrastructure that is beyond the scope of this pass).
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- `rig_task.rs`: Existing 4 tests adequate; integration tests deferred.
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### ~~FT-817 VFO state inference is fragile~~ — IMPROVED
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**Location:** `src/trx-server/trx-backend/trx-backend-ft817/src/lib.rs`
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**Resolution:** Improved `update_vfo_freq()` to handle the ambiguous case where
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both VFOs share the same frequency. When VFO B has a cached frequency that
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differs from the current reading, inference correctly assigns to VFO A. When
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frequencies match (ambiguous), defaults to VFO A — resolved after VFO toggle
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primes both sides. Added detailed comments explaining the inference logic.
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### VDES decoder has incomplete FEC
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**Location:** `src/decoders/trx-vdes/src/lib.rs`
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Burst detection and pi/4-QPSK demodulation work, but Turbo FEC (1/2 rate) and
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link-layer (M.2092-1) parsing are not implemented. CRC validation is stubbed
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(`crc_ok: false`). Output limited to raw symbols. This is a substantial DSP
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implementation task requiring Turbo code decoder research.
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### ~~Plugin system lacks versioning and lifecycle~~ — DROPPED
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Plugin system has been removed from the codebase. No longer applicable.
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### ~~Configurator serial detection is stubbed~~ — RESOLVED
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**Location:** `src/trx-configurator/src/detect.rs`
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**Resolution:** Implemented `detect_serial_ports()` using `tokio_serial::available_ports()`.
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Returns `(port_name, description)` pairs with USB vendor/product info, Bluetooth,
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PCI, and Unknown port type descriptions.
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### Inconsistent frequency/rig naming across crates
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Field naming varies across the codebase (`freq_hz` vs `center_hz`, `rig_id` vs
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`id`, `model` vs `rig_model`). Analysis shows these reflect distinct semantic
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contexts rather than true inconsistencies:
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- `freq_hz`: dial frequency; `center_hz`: SDR capture center; `cw_center_hz`: CW tone
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- `rig_id`: stable config key; `id`: runtime UUID
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- `model`: hardware model string; `rig_model`: config parameter
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**Decision:** Documented as intentional. Renaming would break the wire protocol
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and provide minimal benefit. The `_hz` suffix convention is consistently applied.
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