glm-5.2
40f6468e18
Critical:
- operation-registry: remove stale duplicate OperationEnv impl that
propagated parent.metadata through composition (violated ADR-014);
collapse to one canonical block with metadata: HashMap::new()
- operation-registry: fix request_id collision — format!("env-{name}")
produced identical IDs across concurrent invocations, corrupting
PendingRequestMap correlation and the abort-cascade tree (ADR-016)
- operation-registry + ADR-015: fix OperationContext.internal visibility —
pub field let handlers mark their own call internal (privilege
escalation per ADR-015); change to pub(crate) with pub fn is_internal
Warnings:
- core-types: add Connection::set_identity/identity (OQ-11) to the
Connection type spec — was specified in auth.md but missing from the
type definition
- operation-registry: add Capabilities: Clone design note — invoke()
clones capabilities through composition; explicit security implication
- call-protocol: add CallAdapter root OperationContext construction
example showing internal: false wire path, complementing
OperationEnv::invoke() internal: true composition path
- overview: remove alknet/agent from ALPN registry — agent is a future
consumer of alknet-call (call-protocol operations), not a separate ALPN
- call-protocol: clarify call.requested payload schema and the
leading-slash convention (wire operationId has slash, registry name
does not)
Suggestions:
- operation-registry: cross-reference ResponseEnvelope definition
- core-types: add StreamError to HandlerError mapping table
status, last_updated
| status | last_updated |
|---|---|
| draft | 2026-06-21 |
alknet-core
Core library for ALPN-based protocol dispatch. Every handler crate depends on alknet-core.
Documents
| Document | Status | Description |
|---|---|---|
| core-types.md | draft | ProtocolHandler trait, HandlerError, Connection, BiStream, StreamError |
| endpoint.md | draft | ALPN router, HandlerRegistry, accept loop, graceful shutdown |
| auth.md | draft | AuthContext, Identity, IdentityProvider, AuthToken, resolution flow |
| config.md | draft | StaticConfig, DynamicConfig, ArcSwap, ConfigReloadHandle |
Applicable ADRs
| ADR | Title | Relevance |
|---|---|---|
| 001 | ALPN-Based Protocol Dispatch | Core architectural model |
| 002 | ProtocolHandler Trait | The trait every handler implements |
| 003 | Crate Decomposition | alknet-core's position in the crate graph |
| 004 | Auth as Shared Core | IdentityProvider in core |
| 006 | ALPN String Convention | ALPN format, one-ALPN-per-connection |
| 007 | BiStream Type Definition | Connection, BiStream trait, SendStream, RecvStream |
| 009 | One-Way Door Framework | Decision classification |
| 010 | ALPN Router and Endpoint | Endpoint, HandlerRegistry, accept loop |
| 011 | AuthContext Structure | AuthContext fields and resolution flow |
Relevant Open Questions
| OQ | Title | Status | Relevance |
|---|---|---|---|
| OQ-04 | Dynamic handler registration | resolved (start static) | HandlerRegistry is immutable at startup |
| OQ-05 | Multi-connectivity endpoint | resolved (quinn + iroh) | AlknetEndpoint supports both, both feature-gated |
| OQ-11 | Handler-level auth resolution observability | resolved | Handlers store resolved identity on Connection; two identity scopes (connection-level for observability, per-request for ACL) |
Key Design Principles
- One trait, one dispatch point:
ProtocolHandleris the only abstraction handlers implement. No StreamInterface/MessageInterface split. - ALPN does the routing: The endpoint dispatches by ALPN string. No byte-peeking, no ListenerConfig enum.
- Handlers own their wire format: Each handler manages its own protocol parsing. alknet-core provides the Connection, not the framing.
- Auth is hybrid: The endpoint provides what it can (TLS-level auth). Handlers complete what they need. AuthContext may be partial.
- WASM door preserved: BiStream is a trait, Connection is an opaque type. Core types don't assume tokio or quinn in public APIs.