A host's pairing-gate rejections (not armed / bound to another device /
rate-limited / identity required / denied / approval timeout / superseded /
wire-version mismatch) used to drop the connection with a bare code-0 close,
and every client collapsed that — plus plain unreachability — into one
"wrong PIN / not accepted" message. A dead network path, a disarmed host,
and an operator denial were indistinguishable, which is exactly the
misdiagnosis behind the recent Android pairing support thread.
- core: new ungated `reject` module — shared close-code block 0x60–0x67
(+ 0x42 busy promoted from the host), `RejectReason`, and
`PunktfunkError::Rejected`; `pair()`/`connect()` decode the host's
ApplicationClosed code into `Rejected` instead of a generic Io error.
C ABI v7: status block −20…−28 and `punktfunk_connect_ex8` (`status_out`
reports the failure cause; NULL-return alone can't). Wire unchanged —
old peers see exactly the old bare close.
- host: every gate rejection `conn.close()`s with its typed code (and the
human reason as close bytes) before erroring out of the session task.
- pf-client-core: shared `pair_error_message`/`connect_reject_message`
wording consumed by the Windows + Linux + console-UI + CLI surfaces; a
connect failure now renders the host's stated reason.
- android: `nativeTakeLastError()` JNI token + `ConnectErrors.kt` — a
network timeout is no longer reported as "wrong PIN, or the host isn't
armed", and a typed rejection skips the wake-and-wait fallback (the host
is demonstrably awake).
- apple: `HostRejection` + `.rejected`; the pair sheet and session alerts
show the stated reason; connect moves to `ex8`.
Completes the cross-client half of the hunks that rode along in 12148243
(client.rs / trust.rs / punktfunk1.rs) — main did not build without this.
Validated: workspace clippy -D warnings + full test suite green on .21
(EXIT=0, 309 host / 148 core suites); macOS core 147+c_abi green; swift
build green; Android Kotlin + native crate green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
punktfunk-session
The Vulkan session binary: one stream per invocation in an SDL3 window — no UI toolkit,
no widgets, terminal stats. The power-user / gamescope stream client, and the stage-2
presenter of the Linux client re-architecture (punktfunk-planning:
linux-client-rearchitecture.md).
punktfunk-session --connect host[:port] [--fp HEX] [--launch id] [--fullscreen] [--stats]
punktfunk-session --browse host[:port] [--mgmt PORT] [--fullscreen]
--browse opens the console game library (the Skia coverflow over the animated aurora)
instead of connecting: A launches the focused title as a stream in the same window,
session end returns to the library, B quits (Gaming Mode returns). Paired hosts only —
pairing is the desktop client / Decky plugin's job. PUNKTFUNK_FAKE_LIBRARY=<file.json>
feeds canned entries with no host (portrait paths starting with / load from disk).
Reads the same identity / known-hosts / settings stores as the desktop client
(punktfunk-client) — pair there (or via its headless --pair) first; this binary never
connects to a host it has no pinned fingerprint for (--fp HEX overrides the store).
Stdout is the machine interface: {"ready":true} after the first presented frame,
stats: … once per second while the overlay tier isn't Off (always the full detailed
text, whatever the OSD shows; --stats forces the overlay on), one
{"error"|"ended": …} JSON line on the way out. Logs go to stderr. Exit codes: 0
clean end, 2 connect failed, 3 trust rejected / pairing required, 4 presenter
init failed.
In-stream keys match the desktop client: click captures input (Ctrl+Alt+Shift+Q releases), Ctrl+Alt+Shift+D disconnects, F11 toggles fullscreen; the controller escape chord (L1+R1+Start+Select, hold to disconnect) works the same.
The default build carries the Skia console UI (ui feature): the stats OSD and capture
hint render in-window. Ctrl+Alt+Shift+S cycles the OSD tier live — Off → Compact (one
line: fps · latency · Mb/s) → Normal (mode + end-to-end percentiles) → Detailed (decoder
path + per-stage latency equation); any tier but Off also emits the stdout mirror.
--no-default-features is the ~5 MB power-user build — same streaming, stats on stdout
only, no Skia anywhere in the dependency tree.
Decode follows the Settings preference (auto: Vulkan Video → VAAPI → software on Linux,
Vulkan Video → D3D11VA → software on Windows): FFmpeg's Vulkan Video decoder runs on the
presenter's own device where the stack supports it (every vendor, zero copy); VAAPI
dmabufs import per-plane elsewhere (D3D11VA textures on Windows); software is the
universal fallback. 10-bit Main10 and HDR10 are advertised
(VIDEO_CAP_10BIT|HDR): P010 decodes through all three paths, and PQ streams present
on an HDR10/ST.2084 swapchain when the desktop offers one (KDE HDR, gamescope) or
tone-map in-shader to SDR when it doesn't (PUNKTFUNK_TONEMAP_PEAK tunes the rolloff,
default ≈1000 nits). The host still gates the upgrade behind its PUNKTFUNK_10BIT
policy.
Debug/bisect knobs: PUNKTFUNK_DECODER=vulkan|vaapi|d3d11va|software, PUNKTFUNK_PRESENT_MODE= mailbox|immediate (default FIFO), PUNKTFUNK_VK_DEVICE=<index> (multi-GPU), and
PUNKTFUNK_HW_FAULT=import (fault every VAAPI dmabuf import — proves the three-strike
demotion to software on healthy hardware).