enricobuehlerandClaude Opus 5 43a631ea9c fix(clients): a host that re-keys stops locking the client out for good ...

Reinstall a host, wipe its ProgramData, or otherwise regenerate its identity,
and the desktop clients refused it forever: "Host identity rejected — wrong
fingerprint, or the host requires pairing", including immediately after a
successful re-pair. There was no way out of it from the UI — the host list
showed two cards for one address and forgetting the wrong one was a guess.

`KnownHosts::upsert` matches on the FINGERPRINT, which is what lets a host that
moved address keep its record and everything the user set on it. A host that
changed identity matched nothing, so pairing appended a SECOND record for an
address that already had one, and `find_by_addr` returned whichever came first
in the file — the dead one, every time.

Trust decisions (PIN ceremony, delegated approval, TOFU accept, headless pair —
all funnelled through `persist_host`, plus the Windows shell's two direct
upserts) now go through `upsert_trusted`, which retires any OTHER record for
that address. Retired means DELETED, not demoted: a record whose certificate
the host no longer holds cannot connect, so keeping it only reproduces the two-
cards-one-address confusion this fixes. What described the box rather than the
identity — its MAC, its OS chain, the bound profile, the pinned cards, when it
was last used — moves onto the record that survives, so a reinstall doesn't
quietly cost the user their setup. What described the dead identity does not:
`paired` and `clipboard_sync` are decisions about one specific certificate and
have to be made again for a new one, and the retired record's stable id stays
retired (a deep link written from it falls through to the `host=` recovery the
link grammar already specifies).

Only trust decisions may retire a record. The wake path's address re-key and
every learn-from-advert path stay on plain `upsert`: those are driven by
unauthenticated mDNS, and letting an advert delete a saved host by claiming its
address would trade this bug for a much worse one. A plain reconnect still
fails closed on a pin mismatch — nothing here changes what the pin is checked
against.

Stores that already hold the duplicate recover on the next connect, not at
load: which of two records is live isn't knowable at load time and guessing
wrong would throw away the good one. Instead `find_by_addr` stops being
positional — a real fingerprint beats a placeholder, and among real ones the
newest trust decision wins, since records are only ever appended by one. The
next successful pair then cleans the store up for good. Every lookup that picks
a pin or a per-host decision for a connect now goes through it (the session's
pin and clipboard read, the deep-link resolver, orchestrate's plan, both speed
tests, the CLI's --wake and --library, which had also been ignoring the port),
and an advert's learned MAC/OS lands on the record it identified rather than on
a stale namesake that merely came first.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-08-01 00:00:49 +02:00

..

android

feat(clients): the Apple deadline presenter reports its latch phase

2026-07-31 17:41:46 +02:00

apple

feat(apple): a Pencil near the glass pins the panel at the link ceiling

2026-07-31 17:41:46 +02:00

cli

feat(core/client): an AU's prefix reaches the decoder while its tail is on the wire

2026-07-31 14:14:46 +02:00

decky

feat(client): "Capture system shortcuts" finally decides where Alt+Tab goes

2026-07-31 19:27:33 +02:00

linux

fix(clients): a host that re-keys stops locking the client out for good

2026-08-01 00:00:49 +02:00

probe

fix(host/linux): a no-channel session composites the metadata cursor — Mutter never embeds on a virtual stream

2026-07-30 00:35:25 +02:00

session

fix(clients): a host that re-keys stops locking the client out for good

2026-08-01 00:00:49 +02:00

shared

feat(client): the punktfunk:// grammar — one parser, one emitter, one vector file

2026-07-28 20:32:32 +02:00

windows

fix(clients): a host that re-keys stops locking the client out for good

2026-08-01 00:00:49 +02:00