glm-5.1
596c89ce24
Rename all crates, CLI commands, constants, type names, doc comments, and documentation from wraith to alknet. Includes wire-protocol changes: ALPN wraith-ssh -> alknet-ssh, reserved destination prefix wraith- -> alknet-, SSH auth username wraith -> alknet.
54 lines
2.4 KiB
Markdown
54 lines
2.4 KiB
Markdown
---
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id: transport/tls-transport
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name: Implement TlsTransport and TlsAcceptor (feature-gated tls)
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status: pending
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depends_on:
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- transport/tcp-transport
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- transport/trait-and-types
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scope: moderate
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risk: medium
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impact: component
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level: implementation
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---
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## Description
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Implement TLS transport that wraps TCP with `tokio-rustls`. Client-side: `TlsTransport` establishes a TCP connection and wraps it with a TLS client session. Server-side: `TlsAcceptor` accepts TCP connections and wraps them with a TLS server session.
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Supports:
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- Manual cert/key configuration (`--tls-cert`, `--tls-key`)
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- insecure mode (accept self-signed certs) for development
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- `tls_server_name` override for SNI (ADR-010)
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- Stealth mode support requires peeking at first bytes post-TLS-handshake (handled in server task, but TLS stream must support this)
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Feature-gated behind `tls` feature flag.
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## Acceptance Criteria
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- [ ] `crates/alknet-core/src/transport/tls.rs` (behind `#[cfg(feature = "tls")]`)
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- [ ] `TlsTransport` holds: target addr, optional `tls_server_name`, `insecure` flag, optional root cert for verification
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- [ ] `TlsTransport::connect()` does TCP connect then TLS client handshake via `tokio_rustls::TlsConnector`
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- [ ] When `insecure`, accepts any certificate (dangerous, `webpki_roots::CertStore` bypass or custom verifier)
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- [ ] When not `insecure`, verifies server cert against system roots + optional custom CA
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- [ ] `TlsTransport::describe()` returns e.g. `"tls://example.com:443"`
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- [ ] `TlsAcceptor` holds: `TcpListener`, `ServerConfig` (from `rustls::ServerConfig`)
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- [ ] `TlsAcceptor::accept()` does TCP accept then TLS server handshake via `tokio_rustls::TlsAcceptor`
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- [ ] `TlsAcceptor` constructor accepts: `tls_cert` path/data, `tls_key` path/data, optional ACME config (stub for now)
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- [ ] `TransportInfo.transport_kind` is `TransportKind::Tls { server_name }`
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- [ ] Module re-exported from `transport/mod.rs` behind `#[cfg(feature = "tls")]`
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- [ ] Unit tests for connect/accept with self-signed certs (insecure mode)
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- [ ] Integration test: full TLS client-to-server connection succeeds
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## References
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- docs/architecture/transport.md — TlsTransport row, TLS cert provisioning
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- docs/architecture/server.md — TLS certificate provisioning modes
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- docs/architecture/decisions/008-acme-lets-encrypt.md — ACME cert support (feature-gated)
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## Notes
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> To be filled by implementation agent
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## Summary
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> To be filled on completion |