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ParrotXray 2026-05-23 03:46:15 +00:00
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# acc-001: Account System, JWT Auth, and axum 0.8 Migration
**Cycle**: 1 | **Theme**: backend-infra | **Kind**: design + implementation | **Status**: done
**Date**: 2026-05-23
---
## Summary
Implemented a complete auth stack (SQLCipher-encrypted account DB, Argon2id password hashing,
HS256 JWT bearer tokens) and simultaneously migrated the HTTP layer from actix-web 4 to axum 0.8.
Auth is opt-in: removing `[Config.auth]` from config.toml disables all auth routes with zero
impact on existing monitoring endpoints.
---
## Findings
### Q: Which crates form the auth stack, and why?
A: Three crates, all pure-Rust or vendored:
| Crate | Version | Role |
|---|---|---|
| `rusqlite` | 0.31 feat `bundled-sqlcipher-vendored-openssl` | Encrypted SQLite; vendors both SQLCipher and OpenSSL — zero system deps |
| `argon2` | 0.5 | Argon2id password hashing; PHC string format (salt embedded in hash string) |
| `jsonwebtoken` | 9 | HS256 JWT sign/verify; v9 chosen over v10 to avoid mandatory crypto backend selection |
**Confidence**: high
### Q: What is the DB schema?
```sql
CREATE TABLE accounts (
id TEXT PRIMARY KEY,
username TEXT UNIQUE NOT NULL,
password_hash TEXT NOT NULL, -- PHC string, includes salt
role TEXT NOT NULL DEFAULT 'viewer',
created_at INTEGER NOT NULL
);
CREATE TABLE sessions (
token TEXT PRIMARY KEY,
account_id TEXT NOT NULL,
expires_at INTEGER NOT NULL,
FOREIGN KEY (account_id) REFERENCES accounts(id) ON DELETE CASCADE
);
```
DB is opened with `PRAGMA key = '<db_key>'` as the **first** SQL statement.
Default admin account (`admin` / `admin`) is seeded on first boot if accounts table is empty.
### Q: What are the auth API endpoints and their exact response formats?
**POST /auth/login**
```
Request: { "username": "admin", "password": "admin" }
Response 200: { "token": "<HS256 JWT>" }
Response 401: "Invalid credentials"
Response 501: "Auth not configured" (if [Config.auth] absent)
```
**GET /auth/me** — requires `Authorization: Bearer <token>`
```
Response 200: { "id": "admin", "username": "admin", "role": "admin" }
Response 401: "Unauthorized"
```
**POST /auth/logout** — requires `Authorization: Bearer <token>`
```
Response 200: (empty body)
```
Stateless: server does nothing; client discards the token.
### Q: JWT claims structure?
```json
{
"sub": "<account_id>",
"username": "<username>",
"role": "admin | viewer",
"exp": <unix_timestamp>
}
```
Signed with HS256 using `jwt_secret` from config. Expiry default: 86400s (24h).
### Q: Why axum 0.8 over actix-web 4?
A: Switched to unify state passing via a single `AppState` (Clone) instead of N separate
`web::Data<T>` registrations, and to get native Tower middleware composability for future
rate-limiting and auth middleware layers. Migration was mechanical: ~1200 lines changed,
zero functional difference.
Key axum 0.8 gotchas encountered:
- Path params use `{param}` not `:param` (breaking change from 0.7)
- `async_trait` macro not needed — Rust 2024 edition supports async fn in traits natively
- WebSocket: must `socket.split()` into `SplitSink + SplitStream` for concurrent send/recv
### Q: How does graceful shutdown work?
```rust
axum::serve(listener, app)
.with_graceful_shutdown(async { tokio::signal::ctrl_c().await.ok(); })
.await?;
```
SIGINT → axum drains active connections → `run_http_server()` returns →
`system.terminate()` detaches eBPF, stops ML engine, stops Suricata.
---
## Unexpected Discoveries
- `actix` (actor crate) was listed in Cargo.toml but not used anywhere in the codebase.
Removed cleanly with no impact.
- axum 0.8 `with_graceful_shutdown` is synchronous to add but was previously missing,
meaning SIGINT killed the process before eBPF detach could run.
---
## Open Questions
1. **JWT secret rotation**: no mechanism to rotate `jwt_secret` without invalidating all
active sessions. Acceptable for research prototype; production would need versioned keys
or short TTL + refresh tokens.
2. **`sessions` table is unused**: currently pure stateless JWT; the sessions table exists
in schema but nothing writes to it. If logout-invalidation is needed later, sessions
table is ready to use as a blocklist.
3. **Role enforcement**: `AuthenticatedUser.role` is decoded from JWT but no handler
currently gates on role. Future admin-only routes should check `user.0.role == "admin"`.
4. **Default admin password**: seeded as "admin" if no accounts exist. Must document that
operators change this on first boot; consider forcing a password-change flow.
---
## Impact on Downstream Tasks
- **HTTP API (auth/accounts/lists/system)**: foundation is in place. Next: account CRUD
(`GET/POST /api/accounts`, `PUT /api/accounts/:id/password`, `DELETE /api/accounts/:id`)
and role-based guard on management endpoints.
- **Suppress list API**: `POST /api/suppress` can now be auth-gated via `AuthenticatedUser`
extractor — add it to the route and it's protected.
- **XDP active response**: when implemented, `POST /api/blacklist` should require auth.

121
CLAUDE.md
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@ -48,8 +48,9 @@ Ignore these expected errors when SKIP_EBPF_BUILD is set:
```
src/
├── core/
│ ├── app_state.rs - AppState (Clone) shared across all axum handlers
│ ├── ebpf/ - XDP/AF_XDP packet capture, access control
│ └── infrastructure/- AppServices init, AppConfig, GeoIP, MLAlert
│ └── infrastructure/- AppServices init, AppConfig, AppDb, GeoIP
├── detection/
│ ├── ml/ - ML inference pipeline
│ │ ├── engine.rs - inference loop (tokio interval)
@ -62,10 +63,13 @@ src/
│ │ └── traffic_logger.rs - CSV recording mode
│ └── rule/ - Suricata/Snort rule matching (vectorscan)
├── model/
│ ├── error/ - one file per domain (ml, ebpf, http, rule, ...)
│ ├── log/ - one file per domain (ml, ebpf, http, rule, ...)
│ ├── error/ - one file per domain (ml, ebpf, http, auth, ...)
│ ├── log/ - one file per domain (ml, ebpf, http, auth, ...)
│ └── ml_detection.rs- shared ML types (FlowKey, DetectionResult, ...)
├── web/ - actix-web HTTP API and WebSocket endpoints
├── web/
│ ├── api/ - axum route handlers
│ ├── middleware/ - auth.rs: AuthenticatedUser (FromRequestParts)
│ └── websocket/ - alert, health, flow WebSocket handlers
└── utils/ - packet parsing, logging setup, boot time
```
@ -133,6 +137,115 @@ ML artifacts: `mantis/static/artifacts/`
- `deep_autoencoder.onnx` - LSTM autoencoder model
- `inference_config.json` - window size, feature names, scaler params, threshold
Auth DB: `static/db/app.db` (SQLCipher-encrypted, path configurable via `[Config.auth].db_path`)
## HTTP API
Base URL: `http://<host>:8080`
All routes that require auth expect `Authorization: Bearer <token>` header.
Auth is disabled if `[Config.auth]` is absent from config.toml.
### Auth
| Method | Path | Auth | Request body | Response |
|--------|------|------|--------------|----------|
| POST | `/auth/login` | No | `{"username":"…","password":"…"}` | `{"token":"<jwt>"}` |
| GET | `/auth/me` | Bearer | — | `{"id":"…","username":"…","role":"…"}` |
| POST | `/auth/logout` | Bearer | — | 200 OK (stateless, client discards token) |
JWT claims: `{ sub, username, role, exp }`. Default TTL: 86400s.
Default admin: username=`admin`, password=`admin` (seeded on first boot).
### eBPF Access Control — `/ebpf/access_control`
| Method | Path | Body | Description |
|--------|------|------|-------------|
| GET | `/ipv4/{direction}/{list_type}` | — | Get IPv4 list |
| PUT | `/ipv4/{direction}/{list_type}` | `SocketAddrV4` JSON | Add entry |
| DELETE | `/ipv4/{direction}/{list_type}` | `SocketAddrV4` JSON | Remove entry |
| GET | `/ipv6/{direction}/{list_type}` | — | Get IPv6 list |
| PUT | `/ipv6/{direction}/{list_type}` | `SocketAddrV6` JSON | Add entry |
| DELETE | `/ipv6/{direction}/{list_type}` | `SocketAddrV6` JSON | Remove entry |
`direction`: `ingress` | `egress``list_type`: `whitelist` | `blacklist`
### eBPF Service Control — `/ebpf/service`
| Method | Path | Body | Description |
|--------|------|------|-------------|
| GET | `/ipv4/http_service` | — | List IPv4 HTTP service entries |
| PUT | `/ipv4/http_service` | `[SocketAddrV4, [HttpMethod]]` | Add HTTP service |
| DELETE | `/ipv4/http_service` | `[SocketAddrV4, [HttpMethod]]` | Remove HTTP service |
| GET | `/ipv6/http_service` | — | List IPv6 HTTP service entries |
| PUT | `/ipv6/http_service` | `[SocketAddrV6, [HttpMethod]]` | Add HTTP service |
| DELETE | `/ipv6/http_service` | `[SocketAddrV6, [HttpMethod]]` | Remove HTTP service |
| GET | `/ssh_white_list` | — | SSH whitelist enabled? |
| POST | `/ssh_white_list/enable` | — | Enable SSH whitelist |
| POST | `/ssh_white_list/disable` | — | Disable SSH whitelist |
| GET/PUT/DELETE | `/ipv4/ssh_service` | `SocketAddrV4` | SSH service list |
| GET/PUT/DELETE | `/ipv6/ssh_service` | `SocketAddrV6` | SSH service list |
| GET/PUT/DELETE | `/ipv4/ssh_white_list` | `Ipv4Addr` | SSH whitelist |
| GET/PUT/DELETE | `/ipv6/ssh_white_list` | `Ipv6Addr` | SSH whitelist |
| GET/PUT/DELETE | `/ipv4/ssh_black_list` | `Ipv4Addr` | SSH blacklist |
| GET/PUT/DELETE | `/ipv6/ssh_black_list` | `Ipv6Addr` | SSH blacklist |
### eBPF Statistics — `/ebpf/statistics`
| Method | Path | Description |
|--------|------|-------------|
| GET | `/get/ipv4/{direction}/{flow_direction}/{time_type}` | IPv4 flow data snapshot |
| GET | `/get/ipv6/{direction}/{flow_direction}/{time_type}` | IPv6 flow data snapshot |
| GET (WS) | `/websocket/ipv4/{direction}/{flow_direction}/{time_type}` | IPv4 flow stream |
| GET (WS) | `/websocket/ipv6/{direction}/{flow_direction}/{time_type}` | IPv6 flow stream |
`direction`: `inbound` | `outbound``flow_direction`: `source` | `destination`
`time_type`: `per_second` | `per_minute` | `per_hour`
### Health — `/health`
| Method | Path | Description |
|--------|------|-------------|
| GET | `/metrics` | Current system metrics (CPU, memory, etc.) |
| GET | `/status` | Boolean system health |
| GET (WS) | `/websocket/metrics` | Live metrics stream |
### Detection — `/detection`
| Method | Path | Description |
|--------|------|-------------|
| GET (WS) | `/websocket/alert` | Unified alert stream (`UnifiedAlert` JSON) |
`UnifiedAlert` fields: `source`, `severity`, `src_ip`, `dst_ip`, `proto`, `timestamp`, `detail`
### Misc — `/misc`
| Method | Path | Description |
|--------|------|-------------|
| GET | `/boot_time` | System boot timestamp |
### WebSocket Protocol
All WebSocket endpoints push JSON on data events. Clients should:
- Respond to `Ping` frames with `Pong` (handled automatically by most WS clients)
- Send `Close` frame to disconnect gracefully
## HTTP Framework
axum 0.8 + tower-http. State is passed via `AppState` (Clone) registered with `.with_state()`.
New handlers: add `State(state): State<AppState>` as parameter. Path params use `{param}` syntax.
Auth-protected handlers: add `user: AuthenticatedUser` as parameter (auto-rejects invalid tokens).
```rust
// Example: auth-protected handler
async fn my_handler(
user: AuthenticatedUser,
State(state): State<AppState>,
) -> impl IntoResponse {
// user.0.role, user.0.username available
}
```
## Implementation Priority
See `TODO` for the full backlog.