Commit Graph
747 Commits
Author SHA1 Message Date
enricobuehlerandClaude Fable 5 9f72a3b6ad feat(host): HDR and 4:4:4 stop being mutually exclusive on Windows
windows-host / package (push) Failing after 22s
windows-host / canary-manifest (push) Skipped
windows-host / winget-source (push) Skipped
ci / web (push) Successful in 1m7s
ci / rust-arm64 (push) Successful in 1m30s
ci / docs-site (push) Successful in 1m31s
docker / builders (--build-arg FEDORA_VERSION=44, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm, -f44) (push) Successful in 8s
docker / builders (ci/android-ci.Dockerfile, punktfunk-android-ci) (push) Successful in 6s
docker / builders (ci/arch-ci.Dockerfile, punktfunk-arch-ci) (push) Successful in 9s
docker / builders (ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 11s
docker / builders (ci/rust-ci-noble.Dockerfile, punktfunk-rust-ci-noble) (push) Successful in 19s
docker / builders (ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 15s
docker / apps (., web/Dockerfile, punktfunk-web) (push) Successful in 13s
deb / build-publish-client-arm64 (push) Successful in 2m21s
docker / apps (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 1m6s
deb / build-publish (push) Successful in 4m43s
docker / builders-arm64cross (push) Successful in 11s
docker / deploy-docs (push) Successful in 33s
deb / build-publish-host (push) Successful in 5m4s
android / android (push) Successful in 6m40s
ci / rust (push) Successful in 7m10s
arch / build-publish (push) Successful in 8m11s
apple / swift (push) Successful in 5m8s
apple / screenshots (push) Canceled after 10m53s
rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Canceled after 16m14s
rpm / build-publish (44, fedora-44, punktfunk-fedora44-rpm) (push) Canceled after 15m50s
An HDR display cost you full chroma: the IDD-push capturer's only 10-bit
output was P010, so a session that negotiated 4:4:4 on an HDR desktop was
converted to 4:2:0 at capture time — *after* the Welcome had already told
the client 4:4:4. The client believed it (nothing on the wire contradicts
a Welcome), and the new chroma tag in the stats overlay is what finally
made the discrepancy visible.

Everything except the source was already in place, which is why this is
small: the NVENC config layer has stamped `FREXT` + `chromaFormatIDC=3` +
`pixelBitDepthMinus8=2` — HEVC Main 4:4:4 10 — with a unit test since the
4:4:4 work landed, `PixelFormat::Rgb10a2` already maps to `ABGR10` and
already counts as a full-chroma input, and the desktop client learned the
10-bit 4:4:4 Vulkan pool format in 74863c96. The one missing piece was a
capture format that keeps 10 bits AND full chroma.

`HdrRgb10Converter` is that piece: one full-res pass from the FP16 scRGB
desktop to packed `R10G10B10A2` in BT.2020 PQ, reusing the P010 shader's
`scrgb_to_pq2020` verbatim so both HDR outputs share bit-identical colour
math — it simply stops before the RGB→YUV matrix, the studio-range
squeeze and the chroma decimation. NVENC then does the CSC to YUV 4:4:4
itself under FREXT, exactly as the SDR BGRA passthrough has always done
at 8 bits.

No swizzle is involved and that is worth stating, because it looks like
it should be: NVENC names packed formats from the MSB down, so its
`ABGR10` (A2B10G10R10) puts R in the low 10 bits — bit-identical to DXGI
`R10G10B10A2_UNORM`. It is the same relationship the proven SDR pair
relies on between DXGI `B8G8R8A8` and NVENC's `ARGB`.

The honesty gap closes as a consequence: `capturer_supports_444` no
longer has a depth it cannot serve, so the chroma resolved before the
Welcome is the chroma the wire carries. AV1 is deliberately untouched —
Range Extensions are HEVC-only and no consumer encoder does AV1 4:4:4.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 23:06:44 +02:00
enricobuehlerandClaude Fable 5 5926306a4c feat(windows): the web console becomes a supervised child of the host service
windows-host / package (push) Failing after 22s
windows-host / canary-manifest (push) Skipped
windows-host / winget-source (push) Skipped
ci / docs-site (push) Successful in 1m47s
ci / web (push) Successful in 1m53s
ci / rust-arm64 (push) Successful in 1m58s
docker / builders (--build-arg FEDORA_VERSION=44, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm, -f44) (push) Successful in 11s
docker / builders (ci/android-ci.Dockerfile, punktfunk-android-ci) (push) Successful in 9s
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docker / builders (ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 7s
docker / builders (ci/rust-ci-noble.Dockerfile, punktfunk-rust-ci-noble) (push) Successful in 8s
docker / builders (ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 6s
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apple / swift (push) Successful in 4m45s
deb / build-publish-client-arm64 (push) Successful in 3m28s
docker / apps (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 1m27s
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docker / builders-arm64cross (push) Successful in 6s
android / android (push) Successful in 6m22s
docker / deploy-docs (push) Successful in 38s
ci / rust (push) Successful in 7m10s
deb / build-publish-host (push) Successful in 5m27s
arch / build-publish (push) Successful in 8m42s
rpm / build-publish (44, fedora-44, punktfunk-fedora44-rpm) (push) Successful in 16m58s
rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Successful in 17m16s
apple / screenshots (push) Successful in 20m19s
Three silent console outages in one week (0x1 / 0xFFFFFFFF / 0x41306),
each a different proximate cause of the same structural defect: the
console's lifecycle was owned by Task Scheduler — one best-effort start
per boot/logon/install, no retry on a plain non-zero exit, no watchdog —
while the product already shipped a real supervisor.

The service now supervises the console as a second child slot: plain
session-0 spawn (suspended → own no-breakaway kill-on-close job →
resume), started only once the host has written mgmt-token + cert.pem +
key.pem (the cert race dies by construction), secrets read from their
files at every respawn, bun's stdout finally captured in logs\web.log,
doubling backoff 0.5s→60s that never gives up. Session switches never
touch it; a service stop takes it down via the job.

The PunktfunkWeb task is retired: web setup slims to password + legacy
task delete + firewall, the 127-line web-run.cmd batch supervisor is
deleted, an [InstallDelete] entry reaps the stale copy, and service
install now sets SCM crash-recovery actions (restart 1s/5s/60s) since
the console rides on the service process. StopBunRuntimes stays for the
scripting runner + the one migrating upgrade.

Design: punktfunk-planning design/windows-web-console-lifecycle.md

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 20:16:19 +02:00
enricobuehlerandClaude Opus 5 020306b5ac fix(packaging,host): a fresh Linux install can start, and the comments stop lying
ci / web (push) Successful in 1m3s
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docker / builders (--build-arg FEDORA_VERSION=44, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm, -f44) (push) Successful in 11s
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docker / builders (ci/arch-ci.Dockerfile, punktfunk-arch-ci) (push) Successful in 24s
deb / build-publish-client-arm64 (push) Successful in 2m28s
docker / builders (ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 8s
docker / builders (ci/rust-ci-noble.Dockerfile, punktfunk-rust-ci-noble) (push) Successful in 7s
docker / builders (ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 7s
docker / apps (., web/Dockerfile, punktfunk-web) (push) Successful in 13s
apple / swift (push) Successful in 4m48s
docker / apps (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 1m36s
arch / build-publish (push) Successful in 7m20s
ci / rust (push) Successful in 7m21s
deb / build-publish-host (push) Successful in 7m4s
docker / builders-arm64cross (push) Successful in 8s
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android / android (push) Successful in 8m17s
windows-host / package (push) Successful in 10m43s
windows-host / winget-source (push) Skipped
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rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Successful in 16m40s
rpm / build-publish (44, fedora-44, punktfunk-fedora44-rpm) (push) Failing after 17m31s
apple / screenshots (push) Successful in 20m57s
Fallout from the documentation sweep: verifying doc claims against the code
turned up defects in the code and the shipped templates. Mostly comments that
describe behaviour we no longer have — which is how the docs went wrong in the
first place, since someone reads the comment and writes the page.

The one that mattered: a fresh deb/RPM/Arch install could not start the host at
all. The unit's `EnvironmentFile=` had no `-`, making host.env mandatory, and no
package creates it — all three ship only the templates under /usr/share and the
postinst merely prints the copy command. So `systemctl --user enable --now
punktfunk-host` died on "Failed to load environment files". Every field in
HostConfig::from_env resolves through unwrap_or/filter/None, so absent means all
defaults, exactly like a hand-run `serve`; the Nix module already wrote it as
`-${environmentFile}`. The Deck installer's own generated unit gets the same
prefix for the case where an operator later removes the file.

Shipped templates: PUNKTFUNK_SECURE_DDA is read by nothing (DDA/WGC are gone;
IDD-push is the sole Windows capture path and the secure desktop is
unconditional), so it stops being written into a fresh host.env;
PUNKTFUNK_INPUT_BACKEND offered a `uinput` value that does not exist and omitted
`kwin`, which is what a KDE session actually resolves to; PUNKTFUNK_RENDER_ADAPTER
no longer claims to pick a "Desktop-Duplication" GPU.

Comments corrected rather than deleted, since each explains a real why:
PUNKTFUNK_10BIT is default-on with explicit-off grammar, not an operator opt-in;
GNOME reaches EIS through Mutter's direct RemoteDesktop API, so it needs no portal
approval and is headless-capable; and the host does not run in session 0 — the
service is the session-0 supervisor and the host runs as SYSTEM in the interactive
console session, which is why game_term has to bind the input desktop at all.

packaging/bazzite/update-punktfunk.sh is now installed to /usr/share/punktfunk/,
so the command the docs promised exists.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 18:46:38 +02:00
enricobuehlerandClaude Opus 5 5520167958 feat(clients): the OS marks tell gaming distros apart, and Windows looks current
Three things were wrong with the host-card OS icons.

The Windows mark was Font Awesome 5's, which is still the Windows 8/10 flag
with the perspective skew — dated next to the flat four-pane mark Microsoft
has shipped since Windows 11. No icon set has the current one (Simple Icons
carries no windows/microsoft slug at all), so it is drawn here: four equal
squares at the authentic 11.377 + 1.246 proportion. The Decky plugin was
pulling FaWindows straight from react-icons, so it now inlines the masters
like the web console does, or it would have kept the old flag regardless.

Bazzite, CachyOS and Nobara collapsed onto their family's mark. The host
already advertises the full chain, so this is purely missing art: all three
now ship a leaf mark, because "a Bazzite box" and "a Fedora box" are
different machines to the person reading the card. CachyOS and Nobara come
from Simple Icons; Bazzite has no icon anywhere, so its "b" is lifted out of
the project's own badge (Apache-2.0, attributed).

On Android every non-square mark was stretched. A VectorPainter maps the
viewport onto the ImageVector's default size with independent x and y
scales, so declaring a 448x512 Tux as 24x24 dp squashed it — silently, no
crash, no warning. The longest viewport edge now sets the 24 dp box and the
other follows the ratio, which is what Icon()'s ContentScale.Fit expects.
A unit test pins the invariant; every other client was already correct.

Also: scripts/gen-os-icons.sh replaces the undocumented hand-run pipeline
that turns a master into the GTK symbolic SVG, the Windows PNG and the Apple
template PDF. It reproduces the committed artifacts byte-identically.

Verified: web and Decky typecheck, Decky bundles, Android compiles and its
tests pass, PunktfunkKit builds, osinfo's tests pass. Not verified on glass,
and the GTK/Windows client crates do not build on macOS.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 14:17:02 +02:00
enricobuehlerandClaude Fable 5 f4f83202cb feat(core/client): an AU's prefix reaches the decoder while its tail is on the wire
rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Canceled after 0s
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windows-msix / package (x64, C:\Users\Public\ffmpeg, , x86_64-pc-windows-msvc, C:\t) (push) Canceled after 0s
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Delivery used to be all-or-nothing: the decoder saw byte 0 only after the
last packet of the AU landed, so the whole transmit time sat in front of
decode. With the slice-streamed wire (previous commit) blocks now arrive
addressable, and a client can opt in (connect's new frame_parts) to
receive each AU's newly-contiguous prefix as Frame::part pieces - offset
tiling, first/last marked, the completing push carrying only the suffix.
A PARTIAL_FRAME-capable decoder then chews slices concurrently with the
remaining network transfer.

The reassembler walks a per-frame cursor over successfully-completed
blocks (failed FEC reconstructs don't advance it), coalesces blocks that
finished out of order into one part, keeps probe filler whole, and stops
short of the final block so the zero-padded tail still trims at
completion. Whole-frame consumers see byte-identical behavior - parts
never flow without the opt-in, and never on PyroWave (its newest-wins
draining assumes whole AUs).

Per-AU accounting keeps its units: OWD/ABR feeds, the inter-arrival
series and the clock-based jump-to-live detector only count completing
deliveries, and FrameChannel::depth() counts AUs so a part-rich queue
can't trip jump-to-live at a fraction of the real backlog. The consumer
contract (gap or orphan part = AU lost: abandon, flush, resync on the
next first) is documented on FramePart; the C ABI keeps parts off until
PunktfunkFrame can express them.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 14:14:46 +02:00
enricobuehlerandClaude Fable 5 440cb8d1ec feat(core/wire): streamed AUs cut blocks at slice boundaries, not at 5.5 MB
The streamed-AU path only ever flushed a block when a full FEC block's
worth of bytes accumulated - at real bitrates a frame finished encoding
before that, so every AU degenerated to one tail-heavy send and the
overlap the sentinel wire was built for never happened.

Now a slice boundary flushes every whole shard (floored at
MIN_STREAM_BLOCK_SHARDS so per-block parity stays economical), which
means blocks are variable-size and can no longer be addressed by the
uniform block_index * K_max formula. USER_FLAG_SLICE_STREAM marks such
frames on every packet: sentinel blocks reuse frame_bytes as their
shard-aligned base offset, the final block's base derives from the
totals, and the receiver pins/validates positionally (sentinels must sit
strictly below the final block's base; a mixed-flag or out-of-range
header is dropped before it can place a byte).

The AU's own flag bit gates the wire shape, and the host sets it only
toward clients advertising STREAMED_AU + MULTI_SLICE, so shipped
receivers keep seeing the byte-identical legacy sentinel
(PUNKTFUNK_SLICE_STREAM=0 pins legacy for A/B). Both sides bound the
per-frame block count by the same floored formula, and the flush loop
cuts as many blocks as a chunk completes - a slice bigger than one FEC
block can't leave an oversized final block behind.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 14:14:46 +02:00
enricobuehlerandClaude Opus 5 78926be4ac fix(store): a plugin install lands in the plugins dir, not the nearest package.json above it
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Installing any plugin from the console failed on a user's Fedora 44 host with

  plugin store job failed: @punktfunk/plugin-virtualhere is not present after install

while the same version installed fine on every box we tried. The difference turned
out to be a file in his home directory.

`bun add` does not install into its working directory. It walks UP to the nearest
ancestor `package.json` and installs into that tree. A fresh plugins dir has no
`package.json` — the store and the runner only write `bunfig.toml` — so any stray
one above it captures the install: the packages land in `~/node_modules`, the
dependency is written to `~/package.json`, bun prints "installed …" and exits 0,
and the plugins dir stays empty. The plugins-dir `bunfig.toml` is not read in that
case either, so the outcome splits on whether `@punktfunk` resolves in the hijacked
tree: with no scope mapping there it 404s against npmjs and exits 1 ("the plugin
runner exited with status 1"); with one, it succeeds into the wrong tree and the
job dies on the presence check instead. Only the second shape looks like a broken
store, which is why this took a reproduction to find.

Seed the plugins dir with a `package.json` so it owns bun's install root. Three
call sites rather than one: the store job, the `plugins add` CLI, and the SDK's
`ensurePluginsDir`. The runner ships as its own package and can predate the host
binary, so the host cannot delegate this — the same reason `ensure_bunfig_scope`
writes the registry mapping on this side rather than passing a runner flag.

Seeding only ever touches a tree with no `node_modules`. A dir with packages and
no `package.json` is the hand-assembled/older layout that `installed_packages`
deliberately falls back to the naming convention for, and dropping an empty
`dependencies` on it reports every plugin the operator runs as uninstalled —
already pinned by `an_emptied_dependency_list_means_nothing_is_installed`.

The residual failure stops dead-ending: if the presence check fails anyway, the
error names the capturing ancestor and what to do about it.

Reproduced and fixed on glass (Nobara 44 VM, host + runner 0.22.3): with a stray
~/package.json the store reproduces the field report byte for byte — same 150 ms,
same phase sequence, same message — and with the plugins dir seeded the same
install lands correctly with nothing leaking into the home dir.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 12:48:25 +02:00
enricobuehlerandClaude Fable 5 759aac255b feat(phase-lock): controller v3 — grid-locked submits, arrival sensing, antipode damping
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Midday on-glass falsified v2's remaining assumptions: a per-frame additive
hold SATURATES the arrival-slaved loop once hold + work >= interval — submits
free-run at their own cadence and the commanded phase dissolves (measured:
+-2 ms hold steps, zero client response) — and the latch statistic hovers at
the target's ANTIPODE, where shortest-way errors sign-flip on noise (the
0<->2<->4 ms offset chatter).

v3, one change per falsified assumption:
- ACTUATOR: submits lock to an absolute grid (epoch + k x period + offset);
  the controller walks only the offset. A periodic grid cannot free-run —
  occupancy is one frame per period whatever the offset — so phase actuation
  is linear BY CONSTRUCTION. Disengaged = no grid sleeps = zero cost; every
  failure path DISENGAGES (never parks: v2's e2e-tax lesson).
- SENSOR: the client reports the circular mean + coherence of the ARRIVAL
  lead (per-AU reassembly stamps vs the panel latch grid) — the phase the
  host actually controls; latch measured downstream of the decoder pipeline,
  which absorbed the actuation. pf.phase logs "arrival lead circ= coh=".
- ANTIPODE DAMPING: errors within 1 ms of +-period/2 take half-steps until
  they commit to a side.

Harness rewritten around plants glass validated: a GRID plant (linear by
construction), the DECOUPLED plant (v2's saturation — must disengage, not
orbit or park), an antipode start (must converge within one period of
travel), incoherence (never engages), a regime change (re-engages after
backoff), and the actuator's own periodicity/offset-linearity. Also fixes
the harness's SIM_TARGET (a mis-derived max asserted 3.5 ms where the
controller's actual target is 2.5 — the controller was right, the ruler
was wrong; the Python cross-check inherited the same constant, a lesson in
replicating the CODE, not the author's belief about it).

Gates: v3 simulations 6/6; host bin suite 345/1 (the documented
environmental qemu UDP test); clippy --all-targets -D warnings clean;
cargo ndk arm64 check clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 12:20:39 +02:00
enricobuehlerandClaude Fable 5 4457356ee4 test(phase-lock): a closed-loop simulation harness — both on-glass failures become CI regressions
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The controller iterated twice on the user's gaming PC before this existed;
never again. punktfunk_core::phase::circular_latch is extracted from the
Android presenter (shared: iOS reports next, and the harness generates its
synthetic reports through the IDENTICAL statistic the clients ship), with
unit tests including the wrap-straddling cluster an arithmetic mean gets
maximally wrong.

The stream.rs harness models the plant — latch = (base − hold + noise)
mod P, deterministic LCG noise — and drives PhaseController::adjust through
five regimes:
- tight jitter locks into the deadband within ~5 adjusts and stops moving;
- a wrap-side start takes the SHORTEST way (travel < P/2 asserted);
- an incoherent phase never steps (zero hold, ever);
- a v1 pinned-median report trips the travel budget and DECAYS TO ZERO —
  the 2026-07-31 orbit and the parked-hold e2e tax, both as asserts;
- a post-decay regime tightening re-locks.

Gates: host bin suite 344 passed / 1 failed = the documented environmental
qemu UDP-loopback test (clean main fails identically in this container);
core phase tests 4/4; clippy --all-targets -D warnings clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 11:18:30 +02:00
enricobuehlerandClaude Fable 5 1d31e4c565 feat(phase-lock): controller v2 — circular phase, coherence gate, decay-to-zero
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Round-1 on-glass falsified two v1 assumptions in one morning (NP3 ↔ .173):

- A median lead is immovable under period-spanning jitter (uniform mod P),
  so v1 orbited the period at 2 ms/s forever — and the dead-signal freeze
  hotfix never armed, because ±1.5 ms of window sampling noise kept
  resetting its 'error responded' check. Thresholds can't referee noise.
- A HELD hold is not free: it delays sampling after the capture stamp,
  taxing e2e by up to a period (user-measured: ~+4 ms during the orbit).
  The correct failure response is DECAY TO ZERO, never freeze-in-place.

v2, all three layers:
- Wire: PhaseReport grows a length-discriminated coherence tail (27-byte
  form; the u16::MAX sentinel encodes as the byte-identical 25-byte v1 —
  strict-prefix discipline, both forms pinned by tests).
- Client: the reporter sends the CIRCULAR vector-mean latch phase mod the
  panel period + its coherence (‰); pf.present logs circ=/coh=.
- Host: steps only while coherent (floor 300‰; a v1 report bypasses the
  gate), along the signed SHORTEST way around the period, under a
  cumulative 1.25-period travel budget that is noise-immune by construction
  (it integrates applied steps, not reported errors); incoherence or budget
  exhaustion decays the hold to zero and re-arms once flat. Deadband
  convergence resets the budget — tight regimes lock exactly as designed.

report_phase + the C ABI mirror gain the coherence parameter (canary-only
ABI, hours old, sole caller in-tree). Gates: docker amd64 clippy
--all-targets -D warnings (host+core, nvenc) clean; core suite 244/244;
cargo ndk arm64 check clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 10:55:24 +02:00
enricobuehlerandClaude Fable 5 74ca42568a fix(host/phase-lock): a dead error signal freezes the hold instead of orbiting the period
First on-glass closed-loop run (NP3 ↔ .173, canary 0.23.10498) proved the
transport and both endpoints work — and exposed the controller chasing a
statistic that cannot respond: under period-spanning arrival jitter the
client's latch DISTRIBUTION is ~uniform mod the refresh, so shifting its
mean (the hold — provably reaching the client: the paced-drop bursts locked
to each wrap) cannot move its MEDIAN. The controller stepped +2 ms/s in one
direction forever, wrapping the period every ~4 s, and every wrap coalesced
~30 frames at the client — a periodic hiccup that must not ship.

The controller now remembers its last error: three consecutive steps that
fail to move it ≥1.5 ms freeze the hold (kept, not zeroed) and log; a later
report whose error moved re-arms stepping — a tight-jitter regime still
locks exactly as designed. Controller v2 (a circular phase statistic with a
coherence gate, per the design doc's follow-ups) replaces the median
outright; this freeze stays as its safety net.

Gate: docker amd64 clippy --all-targets -D warnings (host, nvenc) clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 10:12:56 +02:00
f6cfe382fd refactor(update): one signed-manifest checker, shared by the host and the client
The host has known how to answer "is a newer build available for this box's
channel?" since the update-from-web-console work. The Linux client is about to
need the same answer from the same signed document, and a trust rule that lives
in two places is a trust rule that will drift.

So the parts where being wrong is a security bug now exist exactly once, in the
new `pf-update-check`: Ed25519 verification against pinned keys, the manifest
schema and its fail-closed validation, the post-redirect fetch, the version
comparison that has to reconcile four different canary spellings, and the
install-kind ladder — the last parameterised by which product is asking, since
the delivery channels are the same ones but the markers are not.

The pinned key list moves with them. Two lists could have disagreed about who
may announce a release, and the one that drifted is the one nobody would have
noticed; `publish-update-manifest.sh` follows to the new path, and a MISSING
keys file there is now fatal rather than a warning that silently skips the
cross-check the step exists to perform.

Host call sites are unchanged throughout: `store::index` and `update::manifest`
re-export from the shared crate under their old names, and `update::detect`
keeps its cached `detect()` and the host's command hints. Verified with clippy
-D warnings on Linux and on Windows (nvenc,amf-qsv,qsv), 340 host tests green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 09:41:26 +02:00
enricobuehlerandClaude Fable 5 fa822744ff feat(core/host/android): phase-locked capture — frames arrive on the client's latch schedule
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The host's capture tick and a client's panel vsync are independent ~120 Hz
oscillators; their drifting phase sweeps every frame's wait-for-latch across
a full refresh period (measured on-glass: latch p50 oscillating 5.4-8.9 ms
with a fixed margin) — the beat is the residual judder and the fat p95, and
no client can fix it alone. Design: punktfunk-planning
design/phase-locked-capture.md.

Protocol (punktfunk-core):
- PhaseReport (control 0x32, next to the clock family): the client's next
  display latch ALREADY CONVERTED to host clock (the skew offset lives only
  client-side), panel period, uncertainty, and the measured median
  arrival-lead — the controller's error signal. ~1 Hz, latest-wins.
  CLIENT_CAP_PHASE_LOCK advertises it; CtrlRequest::Phase + report_phase()
  + the C ABI mirror carry it.
- The 0xCF host-timing tail grows a phase ACK (applied_phase_ns, 29-byte
  form) under the same strict-prefix append discipline — old readers parse
  the shorter forms; degradation pinned by tests.

Host engine (arrival-slaved loop — no backend can move the source vsync,
per the tick-ownership audit in the design doc):
- PhaseCtl bridges control task → encode loop (the fec_target pattern,
  multi-field). PhaseController walks a per-frame HOLD before submit toward
  the client's reported lead hitting target = max(2.5 ms, uncertainty+1ms):
  1 Hz adjust, 2 ms max step, 300 µs deadband, period-wrapping (the
  newest-wins capture slot makes a wrapped hold sample fresher content, not
  staler). A loop local, so every mid-stream rebuild keeps the lock; a new
  session re-acquires. PUNKTFUNK_PHASE_LOCK=0 disarms.

Android reporter: the presenter's 1 Hz pf.present flush returns the
window's measured latch p50; the async loop converts the vsync clock's next
timeline monotonic→realtime→host and reports. Inert toward old hosts.

Gates: docker amd64 clippy --all-targets -D warnings (host+core, nvenc)
clean; core suite incl. the new wire tests; cargo ndk arm64 check/clippy
clean. On-glass A/B vs the .173 host owed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 f87c1e6cec fix(encode): gate multi-slice frames on the client's decoder — the 0.17.0 Chromecast crash
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Field report: since 0.17.0 a stream to a Chromecast with Google TV 4K
freezes on the first frame and ~80% of the time crashes + reboots the
DEVICE — with both the Punktfunk app and Moonlight, while an Xbox
Series S is fine. Root cause: LN1 Phase 3 (67b79810) defaulted Linux
direct-NVENC to 4 slices per frame for EVERY session. Amlogic HEVC
decoders wedge on multi-slice AUs — exactly why moonlight-android
requests slicesPerFrame=1 for every hardware decoder (4 only for
software slice-threading) — and our RTSP parser never read the request.
The Phase-3 commit recorded the untested leg ("a live Moonlight re-test
joins the standing owed Moonlight item"); this report is that re-test.

The slicing ceiling now belongs to the CLIENT, threaded as open_video's
new max_slices from both planes:
- GameStream: parse x-nv-video[0].videoEncoderSlicesPerFrame into
  StreamConfig and honor it; absent/out-of-range (pre-auth input) => 1.
- punktfunk/1: new Hello cap VIDEO_CAP_MULTI_SLICE (0x80 — the byte's
  LAST free bit; the next cap needs a second byte + ABI bump).
  SessionPlan.max_slices = 32 with the bit, 1 without, applied to every
  encoder the plan opens so rebuilds can't change the wire shape. The
  desktop session client advertises it (FFmpeg/D3D11VA/Vulkan decode
  stacks are fine); Android/Apple stay off until they can decide
  per-decoder like Moonlight does — the cap is embedder-set decoder
  truth, never OR'd in by the shared pump.
- Linux direct-NVENC clamps its Phase-3 default to the ceiling
  (resolve_slices(codec, 4.min(max_slices))) and logs slices/max_slices
  in the caps-probe line; PUNKTFUNK_NVENC_SLICES stays the explicit
  operator override in both directions. Windows keeps its single-slice
  default untouched.

Also repairs the nvenc_cuda #[ignore] hardware tests: d2c46eaf added
open()'s cursor_blend param without updating them, invisible because CI
never compiles tests with the nvenc feature.

Verified on .21 (RTX 5070 Ti): pf-encode + host check/clippy clean with
nvenc; host unit suite 263/0; rtsp announce tests 7/7 incl. the new
slicesPerFrame coverage; on-hardware smokes — default e2e still 4
chunks/frame, NEW single-slice client-ceiling test clamps + disarms
chunked poll with no env involved, env escape unchanged. rustfmt clean.
Windows leg (prepare_display param) is CI-only.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 22:23:42 +02:00
enricobuehlerandClaude Opus 5 d9912aa795 fix(windows/update): an update puts the status tray back instead of killing it for good
Every update started from the web console killed the tray permanently. Three
pieces had to line up, and they did: the installer's StopTrays force-kills every
punktfunk-tray.exe (it is one of the files being replaced), its relaunch is a
[Run] entry flagged skipifsilent, and the in-console updater spawns the installer
with /VERYSILENT. So the tray died on every such update and waited for the next
sign-in, because the Run value is a logon trigger. Confirmed on a box whose tray
was absent while its Run key, its exe and a session signed in hours before the
update were all present.

The installer cannot fix this itself. Spawned from the SYSTEM host service, its
`runasoriginaluser` resolves to SYSTEM — so relaunching there would place a
SYSTEM-owned tray in the user's session, where it would hold the per-session
Local\PunktfunkTray mutex and block the real tray at the next sign-in. Strictly
worse than the bug.

The host does it instead, because only the host has the right token. IntentRecord
gains tray_was_running, captured before the installer is spawned (reusing the
conflicting-host scan's process snapshot rather than opening a second one), and
boot reconciliation reads it off the intent before reconcile consumes it and
relaunches through tray::start(). Restored on both terminal outcomes — a
rolled-back install killed the tray just as dead as a successful one — but never
while an apply is still in flight, where the installer may only kill it again.

The field is serde(default), so an intent written by an older host reads as false
and behaves exactly as before; covered by a test.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 20:42:50 +02:00
enricobuehlerandClaude Opus 5 c77823d800 feat(windows/tray): punktfunk-host tray start|stop|status, so a dead tray is one command away
The status tray is a per-user, per-session GUI process with no recovery path of
its own: the HKLM Run value only fires at sign-in, and nothing in the product
ever restarts one. Anything that kills a tray — an upgrade's StopTrays, a crash —
therefore left the operator without an icon until they signed out and back in,
with no way to ask for it back.

windows/tray.rs becomes the one place that knows tray lifecycle (find, start,
stop, is-running), so the CLI and post-update reconciliation share an
implementation rather than growing two.

start() cannot simply spawn the exe, because the launch crosses a privilege
boundary in one direction only:

  - from the host service (SYSTEM) the tray must land in the active console
    session under the LOGGED-IN USER's token, which is WTSQueryUserToken +
    CreateProcessAsUserW and needs SE_TCB — SYSTEM-only;
  - from a shell already in the console session that call fails (an administrator
    does not hold SE_TCB either) and a plain spawn is both sufficient and right.

Trying the privileged path and falling back discriminates the two without
inspecting a token, and adds no unsafe to the crate. But a plain fallback from
ssh/RDP would put a tray in a session nobody can see and report success, so on
failure it consults console_session_mismatch() and refuses with an explanation
instead. stop() is graceful first (--quit lets the tray remove its own icon via
NIM_DELETE, as the uninstaller does), then forces any instance in another session.

Verified on Windows: launched from a SYSTEM scheduled task the tray comes up in
the console session owned by the interactive user, not SYSTEM; from an ssh
session (0 -> console 2) it refuses; a second start is a no-op; stop is graceful
and idempotent.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 20:42:50 +02:00
enricobuehlerandClaude Opus 5 3bb30cb2f6 fix(windows/web-console): a bun exit no longer parks the console until the next sign-in
The PunktfunkWeb task registers RestartCount=10/PT1M, but Task Scheduler honours
restart-on-failure only when the action crashes or fails to start — never for a
plain non-zero exit. So any bun exit left the console down until the next boot or
interactive logon, with the host still streaming perfectly next to it. Seen on
glass on a 0.22.3 upgrade: `web setup` started the task one second after the new
service came up, bun exited at once (Last Run Result 0xFFFFFFFF), and the console
sat dead for hours while its box served clients — which reads to an operator as
"the host is gone".

web-run.cmd now supervises bun instead of exiting with it: restart on any exit,
indefinitely for a console that served a while and then died, but give up after
10 CONSECUTIVE fast exits so a genuinely broken install still surfaces as a failed
task. Any run lasting >= 60s resets that counter. It exits 0 rather than
respawning when the payload disappears, so an uninstall does not make it spin.

Uptime is measured with an unambiguous clock rather than parsed out of %TIME%,
which is locale-formatted (12-hour locales append " PM", many others use ',' as
the decimal separator) — the box this was found on prints 18:36:28,39.

stop_web_console() polls until :47992 is really free instead of sleeping a blind
second: both `schtasks /end` and `taskkill /F` are asynchronous, and web_setup
starts the new task immediately afterwards, where bun cannot bind a port the
corpse still holds. It re-ends the TASK halfway through, not just the listener —
with the launcher now supervising, killing bun alone would be undone by its own
restart loop.

The systemd unit had the same shape of hole: Restart=on-failure leaves a console
that exited 0 down. Now Restart=always, which an explicit `systemctl stop` still
overrides.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 20:42:50 +02:00
enricobuehlerandClaude Fable 5 696386dee7 fix(host/windows): clippy — SAFETY comments on the WinTrust FFI, explicit truncate(false), sort_by_key
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windows-host.yml's clippy sees what the Linux gate structurally cannot (cfg(windows)
code); verified with the same clippy line on the runner this time, not just cargo check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 17:42:25 +02:00
enricobuehlerandClaude Fable 5 3b1485e2a1 fix(plugins/windows): the runner can read its own bundle, so it actually starts
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Enabling the plugin runner did everything right and then nothing happened.
The task went Ready with LastTaskResult 1 within a second of every start, and
the console kept showing it enabled-but-not-running with nothing to explain
why. Task Scheduler discards the action's output, so the reason never
surfaced anywhere:

  error: EPERM reading "C:\Program Files\punktfunk\scripting\runner-cli.js"

This file already knows why. RUNNER_UNIT_DIRS carries the note that bun opens
the files it loads asking for FILE_WRITE_ATTRIBUTES on top of read, so a plain
(RX) grant makes them die with EPERM — found on glass when the plugin and
script directories were fixed. The runner's own entry script was missed. It
lives in {app}\scripting, which carries only Users:(RX), and LocalService
reaches that through Authenticated Users, so bun could never open the one file
it was started to run. The runner has not been able to start since it moved
off SYSTEM, which is a principal that has full control everywhere and so never
met this.

So {app}\scripting now gets the same (OI)(CI)(RX,WA) the unit dirs get, at
enable, revoked at disable like every other grant here. WA moves timestamps
and the read-only bit and cannot touch content, so the three-way split the
module maintains still holds: code read-only, secrets read-only, only
plugin-state writable. A plugin still cannot rewrite the runner.

Measured on glass on .173, same box, same task, only the ACE differing:
without it Ready/lastResult=1 and no runner process; with it Running, a live
runner, and GET /store/runtime answering running:true — which is exactly what
the console reads. Also checked what bun does with the access: nothing. It
opens the entry for write and never writes, and the directory is byte-identical
afterwards.

Windows-only code, so it is rustfmt-clean and type-reviewed but NOT
compile-verified here — the Windows CI job is the gate.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 17:23:16 +02:00
enricobuehlerandClaude Fable 5 4a540bddc8 feat(host/deck): one-click source rebuild — the update.sh run as a transient user unit
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The U3.1 leg of planning:host-update-from-web-console.md. The Deck's on-device install
gets the Update-now button with no opt-in (user-owned, no root): update.sh --pull runs
under systemd-run --user so the script's own restart of punktfunk-host can't kill it
mid-build (a child in our cgroup would die with us). Outcome without version equality —
which a source rebuild can't promise: a failed build leaves the host alive to report it
(unit watched to failure, log attached); a successful one restarts us, and the new
source_build intent flag makes intent-present-at-boot itself the success signal (the
script only restarts the host after a successful install). The console stops treating
a live long build as a timeout.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 16:28:40 +02:00
enricobuehlerandClaude Fable 5 51d5f6cb29 feat(host/windows): boot-loop auto-rollback — the supervisor re-runs the cached previous installer
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The U3.2 leg of planning:host-update-from-web-console.md. The service worker loop —
the one piece that survives an upgrade — detects a fresh update-intent whose target
version is the crash-looping child (≥3 rapid restarts, intent <30 min), then exactly
once: picks the newest cached non-target installer, requires a valid Authenticode
signature, writes a rolled-back result record for the console, deletes the intent,
and spawns the installer silently. No cached installer or a failing signature degrade
to today's backoff loop with a loud log — never a brick, never an installer loop.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 16:12:22 +02:00
enricobuehlerandClaude Fable 5 06a249e49f feat(host/linux): opt-in one-click updates — the pf-update root helper, group-scoped polkit grant, per-PM legs
The U2 leg of planning:host-update-from-web-console.md. A new dep-free root helper
(crates/pf-update) runs the distro package manager against the INSTALLED punktfunk
packages — apt (index refresh scoped to our list when present), dnf, rpm-ostree
(single-transaction re-resolve, reported staged), sysext (the proven signed-feed
updater), pacman only behind the explicit PACMAN_FULL_SYSUPGRADE opt-in — then the
run-the-binary gate, then a root-written result record. Zero attacker-influenceable
parameters end to end: fixed ExecStart oneshot (punktfunk-update.service), polkit rule
scoped to that one unit's start verb for the shipped-EMPTY punktfunk-update group
(joining it is the auditable opt-in; every postinst creates it, none populate it).
The host starts the unit, interprets the record (staged / nothing-newer-yet / changed),
and crosses its own restart on the same intent/reconcile machinery as the Windows leg.
Status now reports staged results and the opt-in hint.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 15:55:27 +02:00
enricobuehlerandClaude Fable 5 bb48225414 feat(host/windows): one-click update apply — verified installer download, intent/reconcile, POST /update/apply
The U1 leg of planning:host-update-from-web-console.md. The apply request carries no
version/url/channel (the zero-parameter invariant): the host installs exactly what its
Ed25519-verified manifest announced. Pipeline: staged download (resume + disk preflight)
→ manifest sha256 → Authenticode (valid signature, untrusted root tolerated while the
cert is self-signed; leaf sha256 pinned via the signed manifest, extracted from the SAME
WinVerifyTrust state) → intent record → detached CREATE_BREAKAWAY_FROM_JOB spawn of the
winget-blessed silent flags. The installer kills this process by design; boot-time
reconciliation reports the outcome (update.applied event / a durable failure with the
installer log path) across the restart. Session guard (force to override),
PUNKTFUNK_UPDATE_APPLY=0 kill switch, single-flight via job + fresh-intent detection.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 15:55:27 +02:00
enricobuehlerandClaude Fable 5 cc01562631 feat(host): update check — signed per-channel manifest, install-kind detection, /api/v1/update surface
The U0 leg of planning:host-update-from-web-console.md: a signed update manifest
(Ed25519, keys pinned in the binary via the plugin-store verify path, serial floor
persisted against rollback, channel-bound, 45-day stale hint) fetched lazily behind
GET /update/status + rate-limited POST /update/check, admin lane only (plugin lane
whole-prefix denied, absent from the cert allowlist). Install kind + channel come
from root-owned facts; deb/rpm/pacman builds now stamp /usr/share/punktfunk/install-kind.
Emits update.available once per discovered version.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 14:34:46 +02:00
enricobuehlerandClaude Opus 5 553676282a feat(windows): the brand reads Punktfunk on every device Windows shows
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Device Manager, the firewall list and the monitor name all said "punktfunk". The brand
is Punktfunk.

Renamed: the [Strings] blocks of all four driver INFs (device descriptions, install
disks, provider, manufacturer), the `description` on every SwDeviceProfile the host
creates, pf-mouse's HID manufacturer + product strings, pf-vdisplay's IddCx endpoint
friendly + manufacturer names, the EDID 0xFC display-name descriptor — so Windows now
shows `Generic Monitor (Punktfunk)` — and the netsh firewall rule names.

The EDID edit is a single byte (0x70 -> 0x50) and needs no hand-patched checksum:
Edid::generate_with already recomputes both block checksums after patching the serial.

Deliberately left lowercase, because these are IDENTITIES rather than display names and
renaming them would orphan installed state:

  * the SwDeviceCreate enumerator `w!("punktfunk")` — it IS the SWD\PUNKTFUNK\... path
    every pad instance id is built from
  * pf-paths' `join("punktfunk")` — C:\ProgramData\punktfunk
  * the CN=punktfunk-driver cert subject, which purge_driver_certs and both driver build
    scripts match by string
  * install.rs' `lo.contains("punktfunk virtual display")` probes, whose haystack is
    to_ascii_lowercase()d, so they already match the capitalised name

Nothing is orphaned by the renames that DID happen either: netsh rule names,
Get-NetFirewallRule -DisplayName and PowerShell's -match are all case-insensitive, so
the firewall delete paths and reset-pf-vdisplay.ps1's -AdapterName / -GhostMatch
defaults still reap what every release up to 0.22.1 created.

Cosmetic, with two consequences worth knowing: it takes a driver rebuild + re-sign to
appear at all, and an existing devnode keeps its cached FriendlyName until it is
recreated.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 12:30:46 +02:00
enricobuehlerandClaude Fable 5 1f59498c5c fix(host/linux): a no-channel session composites the metadata cursor — Mutter never embeds on a virtual stream
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The capture-latched client (console.rs latched_mouse) never advertises
CLIENT_CAP_CURSOR, so its session resolved cursor_blend=false and asked
Mutter to EMBED the pointer. On a Mutter virtual stream that is a
fiction: since Mutter 48 (7ff5334a, hw-cursor inhibition removed) the
software cursor overlay is suppressed stage-globally whenever any
physical head realizes a HW cursor — dmabuf-recorded frames blit the
view without a pointer, and cursor-only motion schedules no re-record
either (mutter#4939). Probed on-glass on Mutter 50.3: embedded +
relative motion = frozen frame counter; SPA_META_Cursor positions kept
flowing in the same setup.

So the no-channel session now takes the path that was verified end to
end: cursor-as-metadata + the host composites, permanently — the same
arm a channel session lands in after its capture-model flip. Embedded
remains only the can't-blend fallback (libav VAAPI/NVENC, software).

- session_plan::cursor_blend_for grows the no-channel arm (codec +
  depth in, the same CUDA-payload prediction handshake makes);
  gamescope excluded so patch-2+ keeps its native-NV12 zero-copy shape
- the encode loop's composite refresh + one-shot breadcrumbs now cover
  the no-channel session; the park schedule keeps retrying while its
  composite is starved (relative-only clients cannot park themselves)
- the compositor retarget re-applies set_hw_cursor — the rebuilt
  display used to come up EMBEDDED even for channel sessions
- the GameStream virtual source takes the same rule (it never has a
  channel); its stream_body blend flag mirrors the request
- punktfunk-probe grows --cursor-nochannel (the latched-capture client,
  headless); cursor-probe grows --dump (PPM frames + a content-change
  counter, the pixel evidence the embedded A/B lacked)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 00:35:25 +02:00
enricobuehlerandClaude Fable 5 9b2404a580 feat(core): every connect introduces the device by name
The wire always had Hello.name and the host always honored it - but the
connect path hardcoded None (only the PIN-pairing ceremony sent a name),
so every no-PIN "request access" knock surfaced as the fingerprint
placeholder "device abcd1234", and approving one without retyping a
name persisted that placeholder into the trust store forever.

NativeClient::connect now takes the device name. The session workers
and the probe connects pass trust::device_name() (the hostname), the C
ABI defaults to the same without a signature change (an ex10 variant
can make it explicit if an embedder wants a custom label), and Android
threads Build.MODEL through nativeConnect - the same convention its
pairing dialogs already use for nativePair.

The host, in turn, resolves the streaming client's display name (trust
store first, so an approval-time rename wins; else the sanitized Hello
name) and exposes it as client_name in GET /api/v1/local/summary for
the tray's connect toast - a deliberate, documented loosening of that
route's "no device names" contract, in the local user's favor: it tells
them who is on their machine. A paired-but-idle device's name still
never appears, which the mgmt tests now pin explicitly. openapi.json,
its docs-site copy, and the SDK bindings regenerate.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 21:32:50 +02:00
enricobuehlerandClaude Fable 5 751fbd6c47 fix(host/linux): park the seat pointer on the streamed surface — a capture-mode client cannot
ROOT CAUSE of the GNOME capture-mode cursorless stream (and the same
latent hole on KWin, whose screencast also gates cursor data on
includesCursor): a virtual output is created fresh per session while the
seat pointer stays wherever it was — usually a physical monitor. A
capture-model (pointer-lock) client sends only RELATIVE deltas, so
nothing ever moves the pointer INTO the streamed output: input lands on
the wrong monitor, Mutter suppresses SPA_META_Cursor entirely
(should_cursor_metadata_be_set: visible AND in-stream), and both the
embedded and the encoder-blend composite models stream cursorless.

The stream loop now parks the pointer at the streamed surface's centre
through the session's own input pipeline (capability routing, region
ladder, anchor — the path client events take): armed per (re)built
display and by the capture-model flip, retried on a schedule because the
first park of a session can land on a still-cold EIS connection (devices
not resumed — the injector drops it; observed on-glass), and kept trying
while a capture-model session still has no live overlay. A desktop-model
client overrides the park with its first absolute move.

Verified end-to-end on GNOME 50.3/Mutter (RTX 5070 Ti): the reference
client in capture mode now shows the host-composited cursor moving in
the decoded H.265 dump, and the PyroWave session hands the overlay to
the wavelet CSC blend. One-shot per-session/per-stream breadcrumbs
(first meta region, first bitmap, first overlay handed to the blend /
still-cursorless) make the next field triage a grep instead of a rebuild.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 17:59:03 +02:00
enricobuehlerandClaude Fable 5 4c2a6dd091 feat(host,api): the host knows what OS it runs, and says so
Clients want to show which OS/distro a host runs. The host now detects it once
per process (new osinfo module: compile-time on Windows/macOS, os-release on
Linux) and advertises an icon-friendly specificity chain, generic → specific —
`windows`, `macos`, `linux[/<family>][/<id>]`, e.g. `linux/fedora/bazzite`,
`linux/arch/steamos`. A client walks the chain most-specific-first and shows the
first token it has art for, so an unknown distro degrades to its family's mark
and finally to plain Tux — the host emits the full chain precisely so clients
need zero distro→parent knowledge. The middle token is the first recognized
ID_LIKE ancestor (the spec orders them most-similar-first); the leaf is ID
verbatim, sanitized to TXT-safe `[a-z0-9._-]` because it feeds a DNS record.

Two carriers, both additive: a new advisory mDNS `os=` TXT key (same trust
posture as `mac` — unauthenticated, a wrong value only draws a wrong icon), and
`HostInfo.os` + `HostInfo.os_name` on the mgmt API (`os_name` is the os-release
PRETTY_NAME, REST-only so the TXT stays small). GameStream serverinfo and the
QUIC Welcome are untouched. api/openapi.json regenerated (drift test green on
Linux) and the TS SDK gen refreshed from it — which also catches the committed
gen up with earlier spec changes it had missed (monitors, native_paired_clients,
encoder_backend).

assets/os-icons/ gains the ten master SVG marks every client derives its
per-platform art from (Font Awesome Free brands CC BY 4.0 + Simple Icons CC0 —
provenance in its README), with attribution folded into THIRD-PARTY-NOTICES.txt
via the generator (regenerating also catches the stale crate manifest up with
the current lockfile).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 17:58:33 +02:00
enricobuehlerandClaude Opus 5 9243a770bc fix(host/encode): an Automatic bitrate follows the pixels actually encoded
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`build_pipeline` opens the encoder at the DELIVERED frame size but was handed a
bitrate resolved from the NEGOTIATED mode. Those agree for a virtual display,
which is created at the mode that was asked for. They do not agree for a monitor
mirror: `MirrorDisplay::create` ignores the requested mode by design (a physical
head runs at the mode its owner set), so a client asking for 1080p and mirroring a
4K panel encoded four times the pixels at the 1080p rate — a quarter of the bits
per pixel the codec was sized for, which arrives as a soft, stuttering picture
rather than as the mismatch it actually is. This is the reported "laggy mirror".

Re-resolve for what will really be encoded, and thread the applied rate back out
so the session adopts it: `bitrate_kbps` is what the ABR controller climbs from,
what the console samples, and what a `SetBitrate` ack is measured against, so
letting it disagree with the live encoder makes each of those reason about a
stream that does not exist. The mid-stream rebuild paths (mode switch, compositor
switch, capture-loss) adopt it too — each can land on a different source than it
left.

Automatic only. An explicit client rate is the operator's statement about their
own link and is never second-guessed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-29 12:23:32 +02:00
enricobuehlerandClaude Opus 5 a49858f194 feat(packaging/windows): give the drivers one publisher identity, and give the trust back
The drivers had no cryptographic identity at all. Every build minted a fresh
`CN=punktfunk-driver` cert (build-pf-vdisplay.ps1, build-gamepad-drivers.ps1), and
install.rs `trust_cert` adds whatever .cer it finds in the unpacked bundle to
machine Root AND TrustedPublisher. So the signature vouched for nothing an
attacker couldn't restage — replace the bundle, ship your own cert beside your own
driver, install proceeds identically. It was ceremony to make PnP install quietly.

Worse, it leaked. `trust_cert` runs once per driver (install.rs:102 and :155), so
every upgrade added TWO more self-signed root CAs under the same name, and nothing
ever removed them: uninstalling punktfunk left trust behind that the user had no
reason to keep granting.

So: both build scripts now take a stable cert via DRIVER_CERT_PFX_B64 (they already
read the env var — windows-host.yml just never passed it) and fail closed on a v*
tag, same rule as the host and MSIX packers. `driver uninstall` purges every
`CN=punktfunk-driver` cert from both stores, and `driver install` purges before
adding, so an upgrade also collects the historical pile instead of adding to it.

Purge-before-add lives ONLY on the pf-vdisplay install path, not the gamepad one.
The installer runs vdisplay first and gamepad second; purging in both would have
the gamepad leg delete the cert the vdisplay leg just added whenever the two
bundles carry different certs — which is exactly what canary's per-build fallback
produces. Purging by subject rather than thumbprint is deliberate too: it is what
lets one install clean up certs from builds that no longer exist anywhere, and it
needs no parsing of certutil's localized output (this module exists because
locale-parsed PowerShell broke the driver install on a German box).

This does NOT make the driver download authenticated — a self-signed leaf is its
own root, so the installer must trust it for the driver to install at all. What it
buys is a fingerprint we can publish out-of-band so a substituted driver is
detectable, an allowlistable publisher, continuity across releases, and no root
accumulation. Attestation signing remains the real fix; documented as such.

Documented the key-custody trade honestly in packaging/windows/README.md: a stable
key trusted as a machine root on every install is worth stealing in a way a
throwaway never was, with no revocation path. CI secret only.

⚠️ The secrets must exist before the next v* tag or the release will fail — that
is the guard working, and the generation runbook is in that README. The fingerprint
line there is a placeholder until the key is generated.

Verified: punktfunk-host compiles clean on the windows-amd64 runner with this
install.rs (exit 0, no warnings); both build scripts parse; cargo fmt clean.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-29 12:12:21 +02:00
enricobuehler aa070f2d55 feat(ffi): hand-mirrored C structs are now layout-checked at compile time
The sharpest memory-safety risk left in this codebase is not an `unsafe` block — it is a
hand-written `#[repr(C)]` mirror of an external C struct. Get a field offset wrong and nothing fails
to compile and nothing reliably crashes: the library reads a pointer, a length or a pitch out of the
wrong bytes. Eleven such structs across five files had NO check at all.

Guarded here, each next to the struct it protects:

* `AVCUDADeviceContext`, and `AVD3D11VADeviceContext`/`AVD3D11VAFramesContext`. `ffmpeg-sys-next`
  binds none of them, so these mirrors are the only definitions — and we WRITE through them
  (`cuda_ctx`, `device`, `bind_flags`). ⚠ The D3D11VA pair is duplicated VERBATIM in two crates
  (pf-encode's `ffmpeg_win.rs`, pf-client-core's `video_d3d11.rs`) because neither can depend on the
  other; they must agree with libav and with each other, and now a drift in either is a build error.
* The six cuda.h structs. Three were already asserted — but only in `#[cfg(test)]`, so the check ran
  when someone ran the tests and never in a release build. They are `const` now. The other three,
  including `CUDA_MEMCPY2D` which is filled on EVERY zero-copy frame, had nothing.
* `MsghdrX`, Darwin's `msghdr_x`, which `libc` does not expose. Its layout is not reviewable by eye:
  the 32-bit fields force padding before each following pointer, so `msg_iov` sits at 16 and not 12.
  `sendmsg_x`/`recvmsg_x` take the pointer and length from it.
* `IPolicyConfigVtbl` — the sharpest of the set. It mirrors an UNDOCUMENTED COM interface, and
  `set_default_endpoint` is called by SLOT INDEX through a ten-entry `_reserved` gap that carries no
  names to anchor a review. A field added or resized above it does not break the build; it calls a
  different function pointer through a mismatched signature.

Every assertion is `const _: () = assert!(..)`, so it holds on every build including release and
cannot be skipped. The compiler verified the numbers — the sizes and offsets asserted here are the
ones the target actually produces, on each platform that compiles the struct.

Verified: Linux .21 fmt + both CI clippy steps rc=0 (CUDA + libav CUDA mirrors); Windows .47 full CI
clippy set rc=0 + pf-capture tests (D3D11VA pair, COM vtable); macOS `cargo check -p punktfunk-core`
(MsghdrX — the only platform that compiles it).
2026-07-29 08:48:42 +02:00
enricobuehler 50531c8e9e fix(host/display): a screen picker that cannot stream a screen now says so instead of saving
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The Windows console's "Streamed screen" picker SAVED and then did nothing. `capture_monitor` is
platform-neutral, so the PUT persisted; every consumer of it is Linux-gated, so a virtual display
was still created on connect. The operator got a control that acknowledged the click and changed
nothing — the worst of the three possible behaviours.

The root cause is not a missing gate, it is a missing BACKEND. Per-monitor capture is Linux/portal
only: `vdisplay::open`'s mirror arm is `#[cfg(target_os = "linux")]` because `pf-capture` has no
Windows entry point that can capture an arbitrary head. Its sole Windows entry point is
`open_idd_push`, a frame channel pushed by our OWN IddCx virtual display; DXGI Desktop Duplication
was deliberately REMOVED (`windows/dxgi.rs` keeps the GPU-preference hook only to stop DXGI
reparenting the virtual display off the pinned adapter, and says so). So there is nothing for a pin
to aim at, and exposing the picker got ahead of that.

Decision of record (user, this session): mark it unsupported now rather than build the Windows
backend here. A Windows mirror backend is a real feature gap and a project of its own — it needs a
duplication capturer plus everything the IDD-push path carries today (cursor sidechannel, 444,
10-bit, PyroWave, HDR) re-plumbed through it — not a follow-on to an enumeration commit.

Three places, so the answer is consistent wherever it is asked:

* `MonitorsResponse.pin_supported` — a CAPABILITY, reported by the build that would have to honor
  the pin rather than sniffed from the OS client-side. When a Windows mirror backend lands this
  flips and the console needs no change. `pinned` stays `None` off-Linux deliberately, and now says
  why: it is what the console highlights as "sessions stream this", and highlighting a head nothing
  will capture is the same lie in a different place.
* `enforced` drops `capture_monitor` off Linux. That list is exactly the "which controls are live vs.
  coming soon" contract, and claiming this one unconditionally is what let the picker ship enabled.
* The PUT drops a non-Linux `capture_monitor` instead of storing it, and logs that it did. COERCED,
  not rejected with a 400: this PUT is WHOLE-OBJECT, so a host that already stored a pin would have
  every later settings save rejected over a field the operator cannot see — taking the other axes
  down with it. This way such a policy self-heals on the next write.

Console: the picker renders read-only with an explanation, reusing the `envLocked` shape rather than
inventing a second one (`locked = envLocked || !pinSupported`). Managed heads were ALREADY excluded
from selection here (`mon.enabled && !mon.managed`), which is the "grey out, never filter blindly"
rule working as intended — the heads stay listed and explicable. `pin_supported` defaults to TRUE
when absent so an older host, which only ever shipped this picker where it worked, is not
retroactively locked out.

⚠️ `api/openapi.json` is hand-patched — punktfunk-host does not build on macOS, so the spec could not
be regenerated from the binary. The shape was verified by running the real generator over it: orval
emits `pin_supported: boolean` (required, no `?`) on `MonitorsResponse`.

Verified: `bun run codegen` (orval + paraglide + i18n parity: 434 messages, en + de), `bun run build`,
`bun run lint` (tsc --noEmit) all clean. Rust verified separately on .173 — see the next commit's
note if that lands, since neither xcheck target covers punktfunk-host.
2026-07-29 00:18:27 +02:00
enricobuehler 22f2686680 feat(vdisplay/windows): the console can finally show the operator's real screens
`GET /display/monitors` returned an empty list on every Windows host, plus a LINUX error string:
`monitors::list` is a per-compositor dispatch whose non-Linux arm bails, and it never even got
that far because `detect()` was not cfg-gated — on Windows it fell through to an
`XDG_CURRENT_DESKTOP` sniff and failed with advice about setting `PUNKTFUNK_COMPOSITOR`, which the
handler puts VERBATIM into the response. So the console showed no physical screen and its only
explanation was Linux troubleshooting (sweep §13.17).

The data was there all along. `target_inventory()` already walks the CCD database; it now also
reports the geometry that walk had in hand — the driving source's position and mode, the GDI
device name, the refresh rational, and `primary`. No second CCD walker.

* `monitors::list_windows()` maps that onto `PhysicalMonitor`. Two fields cannot mean on Windows
  what they mean on Linux and are reported honestly rather than invented: `scale` is always 1.0
  (Windows scaling is per-monitor DPI applied per application, not a compositor-global logical
  scale — so the geometry is PIXELS), and an INACTIVE head gets zeroed geometry because the CCD
  mode indices are only valid for active paths. Inactive heads are still listed, per `list`'s own
  contract, so "why can't I pick it?" keeps an answer.
* `managed` is finally truthful. The doc says only KWin can tell a virtual output from a real head;
  Windows can too, via our own EDID manufacturer id in the device path (21eda37a).
* `detect()` gets an honest non-Linux arm, the operator pin gated with it — naming a Wayland
  compositor on Windows could never be honoured either.
* The handler reports `compositor: "windows"` instead of null-plus-a-Linux-error.

ON GLASS (.173, host 0.21.0, TV attached):

    connector=\\.\DISPLAY1  enabled=true  managed=false  primary=true
    3840x2160 @165Hz  pos=(0,0)  "LG TV SSCR2"

Pinned by an `#[ignore]`d hardware case that asserts at least one NON-managed head is visible —
the exact thing that was missing. Read-only, so it is safe against a live host.

This also gives `capture_monitor` a picker on Windows, where the handler currently hardcodes
`pinned: None`; wiring that is left for the per-monitor-capture work rather than smuggled in here.

Verified on .173: `clippy -p punktfunk-host -p pf-vdisplay -p pf-win-display --all-targets
-- -D warnings` clean; both xcheck targets clean.
2026-07-29 00:18:27 +02:00
enricobuehler 6de325a6b6 fix(ci): the unsafe lint said warn while CI enforced it as deny, and main went red
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`unsafe_op_in_unsafe_fn = "warn"` was adopted workspace-wide in 39513528 on the assumption that
`warn` is a soft setting you can clear at leisure. It is not: ci.yml runs `cargo clippy … -D
warnings`, which promotes it to a hard error, so main has failed on EVERY commit since — Linux
`rust` and `rust-arm64` both dying on `pf-client-core` with 70 E0133 errors, and windows-host.yml
alongside them. A lint level that understates its own severity is worse than a strict one, so this
states what CI already does — `deny` — and writes the exemptions down instead.

Fourteen GPU/FFI backend files take `#![allow(unsafe_op_in_unsafe_fn)]`, each with its reason and
the workspace Cargo.toml carrying the argument in full. They are not "not done yet": measured
across them, 64% of the sites are a single third-party FFI call (ash, pyrowave-sys, libav, the
NVENC/AMF entry tables), and of the 44 `unsafe fn`s only 4 have a body containing no unsafe
operation at all. Since pf-encode also denies `undocumented_unsafe_blocks`, narrowing them means a
hand-written SAFETY comment per line that could only restate the signature — the exact noise that
made `unsafe` stop meaning anything here before. Everything else stays at zero and enforced, and
each allow is removable on its own terms.

Two smaller things this had to clear, both invisible to the job that would have caught them:

- `service.rs`: `undocumented_unsafe_blocks` wants the proof on EACH block, and a comment covering
  a group of consecutive `unsafe` statements only credits the first — so the two `OwnedHandle`
  wraps became their own statements. Windows-gated, so only the .47 gate sees it. 37a42078 fixed
  the same class of failure in pf-frame/dxgi.rs concurrently; that fix is taken as-is here.
- `clients/linux/ui_settings.rs`: `show`'s deletion left its doc comment stranded on `show_scoped`,
  which silently merged two unrelated doc blocks onto one fn. Removed.

Verified by running the real CI commands, not proxies: on .21 fmt + `clippy --workspace
--all-targets -- -D warnings` + the feature-gated `-p pf-encode --features
nvenc,vulkan-encode,pyrowave` + build + test, all rc=0; on the Intel box .47 all four
windows-host.yml clippy invocations, all rc=0. The arm64 job lints pf-client-core and
punktfunk-client-linux, both covered here.
2026-07-28 22:32:30 +02:00
enricobuehler f40c90aa23 refactor(host/inject/win-display): the Win32 unsafe surface is the FFI call, not the function
`spawn_in_active_session` existed only to launder `spawn_inner`'s `unsafe fn` marker — and its
own comment said why that marker was empty: the callee "has no caller-side preconditions, it
validates the session/token itself and owns every handle it opens". A marker that documents the
absence of a contract is not a contract. The two collapse into one safe fn whose `unsafe` now sits
on the eight Win32 calls, each with the proof it actually needs.

Kept `unsafe fn` exactly where a caller CAN break something: `merged_env_block` (a `*const u16`
block it must trust), `spawn_host` (a borrowed job `HANDLE`), `desktop_name` (an `HDESK`),
`inject_following_desktop` (a live synthetic-pointer device). Those bodies gain explicit blocks
instead — `merged_env_block`'s pointer walk is the one place here where the proof is load-bearing
rather than restating a signature, and it now says why the scan cannot run off the block's end.

With those four files at zero, all three crates take `deny(unsafe_op_in_unsafe_fn)` at the root,
next to the `undocumented_unsafe_blocks` deny they already had. The pair matters: alone, the older
deny is satisfied by an `unsafe fn` body, which needs no blocks at all and so can hide an unproven
FFI call. The workspace lint stays `warn` — it is a ratchet over the encoder backends still to be
cleared, and a crate that reaches zero should not be able to drift back silently.

Windows E0133 214 -> 182 (the remainder is the ash/AMF-dense encode backends). Verified on the
Intel box .47 and on Linux .21: no errors, no `unused_unsafe`, no dead-code fallout.
2026-07-28 22:31:11 +02:00
enricobuehler c262bf43df refactor(host): three more Windows unsafe fns that had no caller contract
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Continues the crate-by-crate `unsafe_op_in_unsafe_fn` work. Same finding as
pf-frame: the useful move is often deleting the `unsafe fn` marker, not decorating
the body.

`install_steam_audio_pair` (no arguments) and `try_install_steam_audio(&str)` are now
safe fns. The call sites had already worked this out — both carried a SAFETY comment
opening "`install_steam_audio_pair` is `unsafe` only because it `LoadLibraryExW`s
`newdev.dll`", i.e. the obligation was never the caller's. Making them safe deletes
14 lines of that prose from two call sites and moves the real reasoning next to the
`LoadLibraryExW`/`transmute`/call chain it actually describes. wasapi_mic.rs: 8 -> 0.

`make_job` (no arguments, and it wraps its handle in an `OwnedHandle` before the
first fallible step) and `open_log_handle(&Path)` are safe fns too. The latter
returns a raw `HANDLE`, but that is an ownership obligation, not a safety one —
nothing a caller does with it can cause UB, and it is inherited by the child and
closed there. service.rs: 19 -> 14.

`spawn_host` keeps `unsafe fn`: it takes a raw `HANDLE`, and an invalid one is UB.
That is a contract worth stating, so it keeps the marker.

Windows-only note: `LoadLibraryExW` here already passes
`LOAD_LIBRARY_SEARCH_SYSTEM32`, so the newdev.dll load cannot pick up a planted DLL
from the working directory — now recorded in the SAFETY note rather than left
implicit.

Verified on Windows .47: punktfunk-host clean at EXITCODE=0 — zero errors, zero
unused-unsafe. Crate's own files now 29 E0133 (interactive.rs 15, service.rs 14),
down from 42.
2026-07-28 21:31:42 +02:00
enricobuehlerandClaude Opus 5 33a31427ae fix(vdisplay): locks held across seconds-long work, an AB/BA inversion, and a panic that poisons the manager
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Phase 7's contained half. 7.1's writer split and 7.3's reservation are NOT here — see
the plan; both need more than a local edit.

**Lock-order inversion, gamescope.** `create_managed_session_steamos` held
MANAGED_SESSION while taking STEAMOS_TOOK_OVER (and `persist_takeover`'s locks), while
`do_restore_tv_session` takes STEAMOS_TOOK_OVER first and MANAGED_SESSION second —
AB/BA between a connect and the restore worker, which genuinely run concurrently
(`vd.create` runs off the registry lock; the worker is its own thread). The connect
path now drops its guard before the pair and re-acquires after `poll_managed_node`, the
shape `create_managed_session` already used. And `takeover_live` held all four statics
at once — in a `||` chain every `.lock()` temporary lives to the end of the statement —
for four reads; scoped bindings drop each guard before the next, taking it out of the
ordering graph entirely.

**`observe_session_instance` decided and acted under one lock.** It held LAST_INSTANCE
across `invalidate_backend` (which drops keep-alive displays through the registry lock)
and a `systemctl` shell-out on a 10 s budget, from three call sites including a
per-second watcher. It decides under the lock and acts outside now; the baseline is
advanced inside it, so a concurrent observer cannot run the action twice.

**`admit` held the live-session table across the budget checks** — `manager::snapshot()`
blocks on the manager `state` lock, which is itself held across DDC round trips and
three 3 s activation ladders. Every connect, disconnect and mgmt read queued behind one
slow display operation. The guard is scoped to `decide` alone.

**GameStream never registered**, so its display was invisible to both Windows budgets
(they gate on `!live.is_empty()`) and a native connect could be admitted past capacity
the box had already spent. It registers now, anonymously, for the session's lifetime.

**`ensure_exclusive_watch` panicked on a failed thread spawn** while holding BOTH
`exclusive_watch` and (via its caller) `state` — poisoning the two locks the whole
manager runs on, so every later acquire and mgmt read would panic on `.lock().unwrap()`.
It logs and degrades instead: no re-assert watchdog is a degradation, a wedged manager
is not.

Also fixes two things only a Windows build shows, both mine: Phase 2.3 left
`gamescope_route` unused there (every reader is Linux-gated), which `-D warnings` in
Windows CI would have rejected — I had only run the host clippy on Linux. And Phase
5.4's helper-safening reaches a FOURTH crate, pf-inject, which xcheck does not lint.

Verified on .173: `cargo clippy -p punktfunk-host -p pf-vdisplay --all-targets` clean
across the whole tree; local fmt, both xcheck targets and 53 tests green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 19:46:15 +02:00
enricobuehlerandClaude Opus 5 8b076f5cc9 fix(vdisplay): the gamescope sub-mode is a per-session value, not a process-global env write
Completes what the env-lock fix started. `apply_input_env` published its decision into
PUNKTFUNK_GAMESCOPE_NODE/_SESSION and `GamescopeDisplay::create` read it back out —
with the lock released in between, and with the GameStream plane, the mid-stream
switch watcher and the capture-loss rebuild all re-running the writer. So session B's
routing decision could retarget session A's `create`: A asks for a bare spawn, B
connects, A attaches to B's session instead.

The decision now travels as a `GamescopeRoute` return value and is carried on the
backend INSTANCE via `set_gamescope_route` — the discipline `set_launch_command`
already documents two lines above it ("Carried on the backend instance — NOT a
process-global env var — so concurrent sessions can't stomp each other's launch
target"). Nothing writes the two keys any more; they are read once, as operator
overrides, and `create`/`poolable_now`/`launch_is_nested` all answer from the
session's own route.

The route carries its payload rather than just the verdict, so the managed session
flavour and the attach node id stop being separate env reads too.

Threaded through both planes: handshake -> SessionContext -> `vd`, and the GameStream
`open_source` -> `run`. Three re-resolution points needed the same treatment and each
would have silently downgraded a session to a bare spawn without it — the switch
watcher's rebuilt backend, the capture-loss rebuild (which can swap the whole
instance), and the operator-pinned path, which deliberately skips the input-backend
write but still needs a route. That last one is why the ladder is split out as
`resolve_gamescope_route`: a `PUNKTFUNK_COMPOSITOR` pin must not silently mean "bare
spawn" on a box pinned to the managed session.

`#[must_use]` on both entry points found the capture-loss site, which I had missed.

Verified on 192.168.1.21: whole workspace `cargo check -p punktfunk-host`, clippy
--all-targets clean over the host and pf-vdisplay, 100 pf-vdisplay tests, and the live
GNOME create/drop still green. Windows + Linux xcheck clean on the Mac.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 19:46:15 +02:00
enricobuehlerandClaude Opus 5 9b38b6a22d feat(stats): a capture records which encoder and GPU produced it
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The stage split is the thing an fps-shortfall report is diagnosed from, and
it cannot be read without knowing the backend behind it: a p50 `submit` of
10 ms means "the GPU's CSC+encode throughput is the ceiling" on one backend
and something else entirely on another. The capture's meta carried the mode,
codec and client but neither the encoder nor the GPU, so every report so far
cost a round-trip asking which one it was.

Both come from `pf_gpu::active()` — the record the encoder open itself
writes — so they name the branch that really opened rather than a re-derived
guess that goes stale the moment a backend gains an internal fallback. Read
once per capture, not per frame.

The console shows them next to the mode in the recording's header. Both
fields are `serde(default)`, so a recording made before this still loads and
simply omits them.

Refs #9

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 19:14:10 +02:00
enricobuehlerandClaude Opus 5 86b605f01f feat(host): run the virtual display faster than the stream needs
PUNKTFUNK_VDISPLAY_HZ_MULT runs the virtual display at a multiple of the
session's rate without putting one extra frame on the wire. A compositor
paints on its own vblank, so a frame finished just after the capture sampled
waits nearly a full interval to be picked up — the jittery part of the
latency budget, not the steady part; at 2 that worst case halves. It costs
the compositor and GPU the extra composites, so it stays opt-in at 1.

The pacing rate was previously just "whatever the backend achieved". It is
now the session's rate floored by the achieved one — the same value as
before whenever the knob is unset, and the only correct answer when it is
set: never above what the client negotiated, never above what the display
actually produces. Both build sites get it, the initial build and the
in-place resize, so a mid-stream resize can't silently drop back to 1x.

A backend that won't give the multiplied rate now says so at info rather
than warn, since that is the expected outcome of an opt-in knob; falling
short of the SESSION's own rate still warns, because that one costs the
client frames.

Closes #14

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 19:13:19 +02:00
enricobuehlerandClaude Opus 5 f98547c41f fix(web-console): the paired-clients card counts both pairing planes
GameStream and native (punktfunk/1) clients pair into separate stores, and
`/status` only ever reported the GameStream certificate count. Native is the
DEFAULT plane, so a host whose clients had all paired normally — and which
Moonlight had never touched — showed "0 paired" on the dashboard.

Report the native count alongside it, the way the tray's own summary route
already does, and sum the two in the card.

Closes #10

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 19:13:19 +02:00
enricobuehlerandClaude Opus 5 0c4e582b29 fix(gamescope): a managed session now proves our flags reached it
The bare spawn builds gamescope's argv itself. The two managed modes hand the
flags over indirectly — `gamescope-session-plus` through `GAMESCOPE_BIN` +
`PF_HDR_ARGS`, SteamOS through a PATH shim — and a session free to ignore
either would exec the distro's gamescope carrying none of them.

Half of that failure was already loud: HDR dies on the bit depth the Welcome
fixed before the display existed. The other half was silent. The host had been
told the compositor would paint the pointer, so it stopped painting one, and
nobody did — a stream that is correct in every respect except that it has no
cursor, which nothing in the logs would have said.

So both managed paths now read the running compositor's `/proc/<pid>/cmdline`
once its node appears, and refuse the session when a flag we passed is missing.
The plan is fixed by then (`cursor_blend` feeds the encoder open, which
precedes the display), so this session cannot be corrected in place; instead
the capability is latched off for the process and the spawn fails, and the
retry resolves a correct SDR host-composited session. One rejected attempt per
boot, then it converges.

Fails OPEN at every ambiguity: no flags expected, or no readable gamescope in
`/proc`, says nothing. And it accepts ANY running gamescope carrying the flags,
because a box commonly has a second one — the Nobara test box runs its own
game-mode `/usr/bin/gamescope --steam` beside ours. That leaves only false
PASSES possible, and the flag that matters cannot produce one:
`--pipewire-composite-cursor` exists nowhere but our patch set.

Two things fell out of writing it. `gamescope_argvs` matches argv[0]'s basename
with `ends_with`, not `==` — the old equality test would have missed our own
`punktfunk-gamescope`, which is what `current_gamescope_output_size` was
already scanning for. And `hdr-probe` gained a line for who paints the cursor,
the one capability with no symptom of its own until you compare two streams.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 18:03:30 +02:00
enricobuehler fd648aa776 feat(gamescope): put the cursor in the node, so a session can be zero-copy
gamescope keeps the pointer out of its PipeWire node — it lives on a hardware
plane for scanout, and `paint_pipewire()` composites a separate, reduced frame
that never includes it. So punktfunk has always reconstructed it from XFixes
and blended it in host-side.

That blend is what has been blocking the zero-CSC encode path, and the cost is
larger than it sounds: `VulkanVideoEncoder::open` refuses the RGB-direct (EFC)
source for any session with `cursor_blend`, because that front end is
fixed-function and has no blend stage. `cursor_blend_for` sets it
unconditionally for gamescope. Net effect: a gamescope session paid a
full-frame colour-conversion pass per frame, forever, for a pointer.

So put the cursor where it belongs. A second carried gamescope patch adds
`--pipewire-composite-cursor` (off by default — the node has never carried it,
and a consumer that draws its own would get two), painting it with the same
`MouseCursor::paint` call the scanout composite uses. It scales for free:
paint_pipewire has already set `currentOutputWidth/Height` to the capture size,
which is what that function scales against. The repaint test grows the cursor's
state beside the commit ids — a pointer-only move produces no commit, so
without it the composited cursor would freeze on a static screen while the real
one moved, and a cursor that became hidden would never be erased.

Host side, the `+pfhdr` marker becomes a monotonic PATCH LEVEL, so one probe
answers every capability the session must know before it is planned (level 1 =
HDR formats, level 2 = the cursor flag). `cursor_blend_for` and the
`gamescope_cursor` resolver both consult it through one helper, because they
have to agree: the reader without the blend is a wasted X11 connection, the
blend without the reader is a stream with no pointer, and both together with a
gamescope that paints its own would draw two.

⚠ The two indirect spawn modes carry the flag through `PF_HDR_ARGS`, so this
shares a dependency with the HDR flags: a session that ignores
`GAMESCOPE_BIN`/`PATH` and execs the distro's gamescope gets neither. HDR fails
loudly there (negotiation timeout + SDR latch); a missing cursor would be
silent. Noted in packaging/gamescope/README.md as worth a post-spawn
`/proc/<pid>/cmdline` check if it ever bites.
2026-07-28 18:03:30 +02:00
enricobuehler 2a13bc5252 fix(gamestream): advertise AV1 Main10, and honour HDR per negotiated codec
`ServerCodecModeSupport` layered `SCM_HEVC_MAIN10` and never `SCM_AV1_MAIN10`,
on the stated theory that "the GameStream AV1 path is left off until
live-confirmed". But the SDR baseline has always offered AV1 **Main8** to every
client, so that path is either live or it is not — the DEPTH was never the
uncertain part, and the omission only cost AV1-preferring clients their HDR.

Now that the encoders probe 10-bit per codec, each bit is gated on that codec's
own `can_encode_10bit` AND the SDR baseline already advertising it. A box that
does HEVC Main10 but not 10-bit AV1 — or the reverse — advertises the truth
instead of one bit standing in for both.

Two gates follow from that:

* `host_hdr_capable` becomes codec-agnostic (ANY 10-bit-capable codec makes the
  host HDR-capable). It was asking about HEVC alone, which would have hidden
  HDR entirely on a hypothetical AV1-only-10-bit box;
* the RTSP honor gains the per-session half: a client that negotiated the codec
  this host CANNOT do 10-bit with degrades to 8-bit SDR there, rather than
  being handed a PQ label over an 8-bit stream. H.264 always lands there —
  there is no 10-bit H.264 encode anywhere.

The unit test now pins each bit independently, including the two one-without-
the-other cases a single shared flag got wrong in both directions.
2026-07-28 18:03:30 +02:00
enricobuehler 689297c86e feat(hdr): a gamescope session streams true HDR10, decided before the Welcome
The Linux native plane has been 8-bit for a reason that stopped being true:
`capturer_supports_hdr()` returned a flat `false` because Mutter's virtual
monitors are SDR-only upstream. That is still right for Mutter, KWin and
wlroots — and wrong for gamescope, whose node can now offer 10-bit BT.2020 PQ
(packaging/gamescope). Open the three gates that held it off, together:

* the capture-side gate becomes SOURCE-AWARE (`capturer_supports_hdr_for`):
  Windows keeps its platform answer, gamescope asks whether the resolved binary
  offers the formats, everything else stays false. It must be truthful rather
  than optimistic — the Welcome is irrevocable, and PQ frames on an 8-bit
  encoder are a deliberate hard error — so every term is a static fact resolved
  before anything is spawned, including "do we spawn gamescope at all" (an
  attach inherits someone else's flags and can promise nothing);
* `want_hdr` reaches the capturer: `open_virtual_output` grew the parameter it
  never had, and the host arm stopped dropping `want.hdr` on the floor;
* the spawn gains `--hdr-enabled --hdr-debug-force-support` on all three
  sub-modes (bare args, the `GAMESCOPE_BIN` wrapper, the SteamOS PATH shim),
  from one shared `hdr_args` — the force flag is what makes it work headless,
  and forgetting it looks exactly like a negotiation failure.

Two things that would have gone wrong quietly:

* the keep-alive reuse key gains `hdr`. gamescope cannot turn HDR on live, so a
  kept SDR display handed to an HDR session would give the game no HDR surfaces
  while the stream negotiated PQ over an SDR composite — wrong, and not
  obviously broken. Same for the managed session-plus/SteamOS reuse check.
* the HDR-negotiation-failure latch becomes PER SOURCE. It was one
  process-wide flag, so a monitor that left HDR mode would have disabled
  gamescope HDR until the host restarted, and vice versa — two facts with
  nothing in common but the word HDR.

GameStream follows the same shape: `host_hdr_capable` gains the gamescope arm,
and the RTSP gate's live BT.2100 monitor probe is scoped to the portal source —
a headless box has no monitor to be in HDR mode, so running it there would
hard-refuse every gamescope HDR session.

Off by default for one release (`PUNKTFUNK_GAMESCOPE_HDR=1`), and
`punktfunk-host hdr-probe` now answers for both Linux HDR sources.
2026-07-28 18:02:13 +02:00
enricobuehler 0868b6a364 fix(vdisplay): compositor availability follows the live session, not the env
GNOME/Mutter reported "Unavailable" on a host sitting in a live Mutter
session — and, on the same request, "Default", because the two columns had
different sources. available() asked each backend, and those probes read
the process env (XDG_CURRENT_DESKTOP for Mutter, WAYLAND_DISPLAY for
KWin's registry handshake, SWAYSOCK for sway) — env a host started outside
the session (systemd --user, a TTY, ssh) never inherited. It is only
retargeted at the live session on the connect path, so the answer also
flipped depending on whether anyone had connected yet.

Both columns now come from the same /proc scan detect() already used: the
live session's compositor is usable by definition, as is an explicit
operator pin, and the per-backend probe stays as the fallback for backends
that are not the live session (gamescope, which spawns its own). A live
KWin without the zkde_screencast grant now surfaces as available and fails
at create with that probe's precise message, which beats "no usable
compositor" on a box visibly running KDE.

Mutter's env sniff stays deliberately narrow — one var, not three.
XDG_CURRENT_DESKTOP is the one apply_session_env owns end to end (written
per connect, scrubbed when nothing is live); sniffing DESKTOP_SESSION
alongside would resurrect the bug that scrub exists to prevent, where a
stale value after a gnome-shell crash routes the next client into a dead
session.

Non-Linux hosts now report no compositors at all rather than five Linux
backends flagged unavailable with no default — on Windows the pf-vdisplay
driver is the only backend and vdisplay::open ignores the argument, so the
old list read as broken detection instead of "not applicable here". The
console says so explicitly.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
(cherry picked from commit eb7ba3d6177552f5c3ed6a15439404084869c636)
2026-07-28 17:01:59 +02:00
enricobuehler b444308592 feat(host): PUNKTFUNK_HOST_NAME names the host in Moonlight and the clients
A box called `bazzite-htpc` had no way to present itself as "Living Room"
short of renaming the machine. The new knob overrides the name everywhere
a human sees it: the GameStream serverinfo <hostname> element and the
mDNS service instance name both adverts carry. Unset (the default) is the
machine's own hostname, exactly as before.

Free text is the point, so the DNS-level name is now a separate concern
from the display name. The instance label may contain spaces and accents;
an A-record target may not, and mdns-sd rejects the whole ServiceInfo if
the target is not a legal name — which would take discovery down rather
than merely look wrong. dns_label() sanitizes the target and passes an
already-legal name through byte-for-byte, so hosts without the override
advertise precisely what they always did. The display name loses `.` (it
would split the label, and clients derive the name as the first label of
the fullname, so "Ben's PC v1.2" would arrive as "Ben's PC v1") and is
capped at the 63-byte DNS-SD ceiling on a char boundary.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
(cherry picked from commit bbf72261a12e0e67601f549d40db65ae61979268)
2026-07-28 17:01:59 +02:00
enricobuehler 188f55d3b1 fix(encode/nvenc): the host advertises what the driver lists, not a superset
Every NVIDIA host advertised a static H.264|HEVC|AV1 superset, so a 1st-gen
Maxwell (GTX 960M, no HEVC/AV1 encode) offered HEVC — a client that believed
it got ~15 s of blank video and a disconnect instead of a stream. Both OSes
now ask the driver itself (nvEncGetEncodeGUIDs) on one throwaway direct-SDK
session: Linux on the shared CUDA context, Windows on the selected render
adapter, wired into host_wire_caps AND the GameStream serverinfo mask (which
had been left on the superset for NVIDIA on both OSes). Fails open — an
unanswerable probe keeps the historical superset, so it can only ever narrow
the advertisement to codecs the GPU really encodes.

The HEVC 4:4:4 answer rides the same session on Linux instead of opening a
libav hevc_nvenc FREXT probe: that open is the prime suspect for the field
bug where one probe wedges NVENC process-wide (NV_ENC_ERR_INVALID_VERSION on
every later session until a host restart), and the direct backend re-checks
the same caps bit at session open anyway. The ffmpeg probe remains only for
hosts that really stream over libav (PUNKTFUNK_NVENC_DIRECT=0 or a build
without the nvenc feature), where ffmpeg's NVENC client runs regardless. The
10-bit probe deliberately stays libav — Linux HDR rides the libav P010 path.

On-hardware: .136 (RTX 5070 Ti) 14/14 nvenc tests in one process incl. the
probe followed by real sessions and dirty teardown; .173 (Windows RTX) probe
+ 47 release lib tests. The Windows probe test documents the pre-existing
MSVC debug-link failure (LNK2019 via the sdk crate's unused lazy loader) —
run it with --release, the same reason windows-host.yml gates with clippy.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
(cherry picked from commit 0346ec8090568eb499e8cb7d735305b28471185e)
2026-07-28 17:01:59 +02:00
enricobuehlerandClaude Opus 5 560e663aef fix(drivers): the pad channel asks the devnode who to trust, not the mailbox
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A LocalService principal could take over a virtual pad's shared input section and
forge HID input into the interactive desktop.

The host duplicates each pad's unnamed DATA section into the driver's WUDFHost, and
through gamepad proto v2 it learned that process from `driver_pid` in the named
bootstrap mailbox. That mailbox has to be LocalService-writable — that is what the
driver's own WUDFHost runs as — and the delivery gate, verify_is_wudfhost, only checks
that the target's IMAGE is %SystemRoot%\System32\WUDFHost.exe. That image is
world-executable. So anything running as LocalService — notably the deliberately
de-privileged plugin runner — could spawn its own WUDFHost (CREATE_SUSPENDED parks it
indefinitely with the right image path), publish that pid, and be handed
SECTION_MAP_READ|WRITE on a live section. For pf-mouse that section drives a real
absolute pointer, so it was desktop control; for the pads it was forged gamepad input
plus a read of the remote user's controller state.

The module docs claimed mailbox tampering "yields at worst a gamepad DoS, never a read
or an injection". That was wrong, and the reasoning behind it — that a LocalService
token is DACL-denied OpenProcess on a UMDF WUDFHost — only covers the REAL host, not
one the attacker spawned itself.

The pid now comes from the device stack (ChannelProof, proto 2 -> 3). The host asks the
devnode it SwDeviceCreate'd who is serving it, looked up by the instance id PnP handed
back, so a planted look-alike devnode is not a candidate and the kernel — not anything
the attacker supplies — does the routing. Only the driver PnP actually bound to that
device can answer. `driver_pid` survives as a liveness hint; a tamperer can still deny a
pad, which squatting the name always allowed, but can no longer choose the recipient.
Two rules keep the state machine honest around it: a delivery stands until its target
process EXITS (judged on a retained SYNCHRONIZE handle, so a recycled pid cannot fake
it, and UMDF's restart-after-driver-crash still re-attaches), and a pad with no
SwDeviceCreate devnode refuses to deliver rather than fall back — unless an operator
sets PUNKTFUNK_PAD_CHANNEL_TRUST_MAILBOX, which says so loudly.

Three transports, because Windows carries different things to different driver shapes,
and the obvious two did not survive contact with hidclass. Measured on .173 (Win11
26200): HidD_GetIndexedString is NOT forwarded to a UMDF HID minidriver at all — it
failed for every index including ones the driver demonstrably serves through the named
wrappers; and a private device interface registers and enumerates but cannot be OPENED
(ERROR_GEN_FAILURE), because hidclass owns IRP_MJ_CREATE on a devnode it is the FDO for.
That is exactly why pf-xusb was never affected: it is not a HID minidriver, so nothing
sits above it. What works:

  * pf-xusb   — a private IOCTL on its own GUID_DEVINTERFACE_XUSB.
  * pf-mouse  — the HID serial string. Verified: PFCP:3:0:7296, and 7296 was a genuine
                service-spawned WUDFHost.exe. Safe here alone: nothing reads the virtual
                mouse's serial, whereas a pad's is SDL/Steam dedup material.
  * pf-gamepad — a HID feature report, and it cost NO report-descriptor change. The
                captured descriptors already declare far more Feature ids than the driver
                ever served: 0x85 is declared on DualSense, DualShock 4 and Edge alike and
                used to fail with STATUS_INVALID_PARAMETER, so hidclass lets it through and
                nothing can have depended on the old failure. The Deck's one feature report
                is unnumbered and Steam drives it command->response, so its proof rides that
                existing contract via a private two-byte command. Verified: feature 0x85
                returned magic "PFCP", proto 3, pad_index 0, wudf_pid 18456 — and 18456 was
                a WUDFHost — with the product string still 'DualSense Wireless Controller'.

Also renamed pf-dualsense -> pf-gamepad. One driver has always served four identities, so
the old name read as if the other three lived elsewhere. ONLY the package identity moved
(crate, INF/CAT/DLL, UMDF service, build script, CI lines, log file, env var). The four
HARDWARE IDS are deliberately unchanged — they bind every devnode the host creates and
every installed system — as are the Global\pfds-boot-<i> mailbox and PAD_MAGIC, which are
wire contract. `driver install --gamepad` now retires the pre-rename store package first,
matched on pf_dualsense.dll because that string appears only in the OLD inf; matching on
the hardware ids would delete what we are about to install. On .173 that separated 14
stale packages from the 1 new one with 0 ambiguous, and the renamed package binds the old
hwid (devgen root\pf_dualsense -> oem143.inf = pf_gamepad.inf).

The repo's own pre-commit/pre-push rustfmt hooks named the old crate, so they caught the
rename before the commit did — they now check pf-gamepad, and pf-mouse alongside it, which
they had been missing relative to the CI line.

Host and drivers MUST ship together: v2<->v3 fails closed in both directions by design,
with the existing "update host + drivers together" diagnostic.

The rename moved files that also carry the security change, so splitting this into two
commits would mean reconstructing an intermediate state that was never gated. It is one
commit on purpose.

Gated on the windows-amd64 runner with cargo clean first (the box's clock lags, so stale
artifacts would read as a vacuous green): clippy -D warnings clean for pf-inject,
pf-capture and pf-driver-proto, drivers workspace build + the CI clippy line clean,
cargo check --release -p punktfunk-host clean, 19 + 58 tests green. Also fixes pf-mouse
still writing its debug log to world-writable C:\Users\Public, which the 2026-07-17
review moved for the other three drivers and missed here.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-28 16:54:40 +02:00