glm-5.2
613bf680cd
ADR-091: ConnectionCredentials — decouple the dial credential bundle from the call protocol. CallCredentials (call-protocol-level, carries auth_token) was being used as the dial's credential type, coupling the dial to the call protocol. The auth_token is a hub-layer identity correlation mechanism (browsers, alknet/register), not a transport credential. ConnectionCredentials (transport-level: local_identity + remote_identity) is the dial's credential bundle; all three dial signatures unify on &ConnectionCredentials; dial_iroh's node_id parameter is derived from remote_identity.fingerprint. CallCredentials stays in alknet-call with auth_token. The shape is validated by the future dial_ssh pattern (russh's check_server_key + authenticate_publickey consume the same two dimensions). Amends ADR-089 §3 (dial signatures) and §5 (move consequence), ADR-087 (input framing). Updates client/tls/call/core crate specs and the extraction plan's Phase 0/3/4/5. Migration plan cleanups (findings.md): - Remove duplicated ordering-rationale bullets (copy-paste artifact) - TL;DR: six phases -> seven (Phase 0 promoted); four compilable intermediate states -> each phase leaves workspace compilable - Remove inline 'Wait — that's 10, not 8' self-correction; fix Category B header to (10 tests) - Replace contradictory line ranges in Net Phase 5 test impact with name-based references - Decide quinn feature fate: removed (not no-op) - Note webpki-roots always-present per ADR-088 §5 in Phase 1 dep list
status, last_updated
| status | last_updated |
|---|---|
| draft | 2026-07-15 |
alknet-core
Shared types, auth, config, and identity for ALPN-based protocol
dispatch. Every handler crate depends on alknet-core for
ProtocolHandler, Connection, AuthContext, IdentityProvider, and
config types. The endpoint (AlknetEndpoint, HandlerRegistry) has
been extracted to alknet-endpoint (ADR-083
Amendment 2026-07-15; EndpointError is removed — both variants were
vestigial); core no longer carries the accept-loop runner or its
transport deps (quinn, iroh, rcgen, rustls-acme).
Connection::from_quinn / from_iroh stay in core's types.rs as
shared constructors (gated on core's quinn / iroh features).
ConnectionCredentials and RemoteIdentity move to alknet-core
(from alknet-call, per ADR-091) — the transport-level credential
bundle consumed by the dial (alknet-client) and by server-side
transport construction. CallCredentials (the call-protocol credential
bundle, including auth_token) stays in alknet-call — the dial does
not carry call-protocol dimensions.
Documents
| Document | Status | Description |
|---|---|---|
| core-types.md | draft | ProtocolHandler trait, HandlerError, Connection (Box<dyn BidiStreamSource> — ADR-070), BidiStreamSource trait, BiStream, StreamError |
| endpoint.md | deprecated | Endpoint spec — moved to alknet-endpoint (ADR-083 Am. 2026-07-15); this file is a stub |
| auth.md | draft | AuthContext (incl. anonymous constructor), Identity, IdentityProvider, AuthToken, resolution flow, PeerEntry, CredentialStore |
| config.md | draft | StaticConfig, DynamicConfig, ArcSwap, ConfigReloadHandle, AuthPolicy.peers |
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 | HandlerRegistry, accept loop — endpoint extracted to alknet-endpoint per ADR-083 Am. 2026-07-15 |
| 011 | AuthContext Structure | AuthContext fields and resolution flow |
| 015 | Privilege Model and Authority Context | Per-request identity on OperationContext; admin scope for config reload |
| 030 | PeerEntry and Identity.id Decoupling | authorized_fingerprints → peers: Vec<PeerEntry>; Identity.id = peer_id (stable) |
| 031 | CredentialStore Repo Trait | Second repo trait in core; InMemoryCredentialStore default adapter |
| 033 | Storage Boundary and Repo/Adapter Pattern | Core defines traits + in-memory defaults; persistence adapters are separate crates |
| 065 | Connection::from_stream — Generic Single-Stream Connections |
from_stream/from_bidi accept any AsyncRead + AsyncWrite; yield-once accept_bi contract; unblocks TCP+TLS, SSH channels, WebTransport, wasm |
| 070 | BidiStreamSource Trait — Open Connection for Extension | Connection holds Box<dyn BidiStreamSource>; QUIC/iroh/stream wrap crate-private impls; from_source is the public constructor for downstream crates that implement the trait (channels, future transports) |
| 083 | Endpoint as accept-loop runner + crate extraction | The endpoint is extracted from core into alknet-endpoint; core loses quinn/iroh/rcgen/rustls-acme deps; Connection::from_quinn/from_iroh stay in core as shared constructors |
Relevant Open Questions
| OQ | Title | Status | Relevance |
|---|---|---|---|
| OQ-04 | Dynamic handler registration | resolved (start static) | HandlerRegistry is immutable at startup (now in alknet-endpoint) |
| OQ-05 | Multi-connectivity endpoint | resolved (quinn + iroh) | AlknetEndpoint supports both, both feature-gated (now in alknet-endpoint) |
| 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) |
| OQ-33 | PeerId — logical id vs crypto identity | resolved by ADR-030 | PeerId = Identity.id = PeerEntry.peer_id (stable across key rotation) |
| OQ-34 | Persistent peer registry (storage boundary) | resolved by ADR-030+031+033 | Core defines repo traits + in-memory defaults; persistence adapters are separate crates |
| OQ-35 | dissolved | PeerEntry supports multiple credential paths; ApiKeyEntry is for tokens that ARE the identity |
|
| OQ-36 | Concrete persistence adapter shapes | resolved by ADR-035 | Read-sync / write-async split (IdentityStore); SQLite adapter caches in memory, honker NOTIFY for no-restart cache invalidation; alknet-store-sqlite crate |
| OQ-37 | X.509 outgoing-only case | resolved by ADR-034 | Three remote roles (public X.509 endpoint, transport relay, hub); PeerEntry asymmetry correct; client-side verifier by PeerEntry presence (CA vs fingerprint pin) |
| OQ-55 | AlknetClient / Client Establishment Extraction | resolved by ADR-089 | The native dial seam is extracted as alknet-client — the client-side analogue of AlknetEndpoint (now in alknet-endpoint). Three dial methods (QUIC + TCP+TLS via TlsClientConfig, iroh via key). |
Key Design Principles
- One trait, one dispatch point:
ProtocolHandleris the only abstraction handlers implement. No StreamInterface/MessageInterface split. - ALPN does the routing: The endpoint (in
alknet-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.