glm-5.3-flash
0d3fd48f5d
The client direction's substrate (client.md §The dial surface), the mirror of w2-server-mount: dial(DialConfig) runs the fail-closed four-step sequence — decrypt-at-dial key load (every KeySource posture a distinct no-dial outcome), the bounded russh client Config from Limits (keepalive 15 s / 3, the wall clock always Some, window/ packet/buffer verbatim), the injected host-key policy at check_server_key (RejectAll connects to nothing; UnknownKey maps to DialError::HostKeyRejected — its only producer), and exactly one publickey-only auth attempt — and returns the authenticated SshConnection handle everything else in the wave rides. - DialConfig amendment (the sanctioned course-correction, recorded): the required `username` field — the USERAUTH_REQUEST's user string; no crate default, never identity, never logged (ADR-004 decision 5). - The client Handler skeleton (src/client_handler.rs): every server_channel_open_* hook overridden explicit-over-inherited with a clean AdministrativelyProhibited reject (never russh's accept-and-drop default, ADR-003 §4); should_accept_unknown_ server_channel the explicit false; decline events on the crate vocabulary (no-acceptor / never-feature reasons). - The in-process fake sshd (tests/common/sshd_double.rs): the client-direction contract vehicle — a plain russh server on a real loopback TCP listener, accept-set identity resolution, the auth_ succeeded handle carrier for the server-initiated-open rows, the per-session outcome channel for the clean-close rows. - tests/client_dial.rs: 10 contract rows — dial success, the five key-source no-dial postures, RejectAll / pin-mismatch / case-2 policy rows, refused auth, the malformed-address dial-time refusal, the bounded-config observable, the six-hook decline wire rows with decline events, and the smoke: alkssh-client ↔ alkssh-server over a real TCP loopback (real-sshd dial stays wave-5 e2e). Verification: cargo test + per-feature + --all-features (14 binaries, all green), cargo clippy ×2 (-D warnings), cargo fmt --check, cargo doc --no-deps — all clean. taskgraph validate: 35 tasks valid.