6 Commits

Include renames

Author	SHA1	Message	Date
enricobuehlerandClaude Opus 5	560e663aef	fix(drivers): the pad channel asks the devnode who to trust, not the mailbox ... 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
enricobuehlerandClaude Opus 4.8	09849906e9	Merge perf/first-frame-latency: driver proto v4 + first-frame/resize latency (P0-P2) ... Brings the first-frame-latency branch (P0.1 transition tracing, P1.1/P1.2 Welcome-time display prep, P2 in-place resize; pf-driver-proto v3 -> v4 with IOCTL_UPDATE_MODES) onto current main. The branch predates the W6.2/W7 splits, so git's rename detection carried most of it into the moved crates (pf-capture idd_push, pf-vdisplay manager/pf_vdisplay, pf-win-display, pf-driver-proto, the driver workspace) and the punktfunk1.rs remainder was re-homed by hand: - native/handshake.rs: welcome/start trace marks + the Welcome-time display prep spawn (the prep thread BECOMES the stream thread; hand-off via a SyncSender<SessionContext>). negotiate() gains bringup/quit/stop and returns the PrepHandle. - native.rs: bringup/resize_ms creation + the stop/quit flags hoisted BEFORE the handshake (the close watcher splits: flags pre-handshake, lifecycle events post-handshake where `hello` exists); punch_done stamp; the data plane adopts the prep thread's result or builds inline. - native/stream.rs: SessionContext/SendStats carry the trace; send_loop finishes it on the first video packet; the resize path gains the in-place fast path (try_inplace_resize) with the full rebuild as fallback, restructured so both share the post-rebuild bookkeeping; prepare_display/PreparedDisplay/ PrepHandle; build_pipeline(+retry) thread the stage marks. - session_status/mgmt: ttff_ms + last_resize_ms per session (union with the lifecycle-events fields main added to the same spots). - pf-capture: Capturer gains capture_target_id() + resize_output() defaults. - pf-vdisplay manager: perf's faster activation poll (60x50ms) + the settle floor before the PnP sweep, on main's knobs/no-trait shape. Also: packaging/windows/build-gamepad-drivers.ps1 is ASCII again (an em-dash from the pf-mouse work tripped windows-host.yml's locale-safety gate on main). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-17 16:08:16 +02:00
enricobuehlerandClaude Fable 5	85dd2bb077	feat(host/windows): resident virtual HID mouse (pf-mouse UMDF minidriver) ... Headless Windows hosts (no dongle) stream an INVISIBLE cursor: with no pointing device present win32k reports SM_MOUSEPRESENT=0 and DWM never composites a pointer into the pf-vdisplay frame, even though SendInput moves it. Keep ONE virtual HID mouse devnode alive for the host's lifetime — the Sunshine/Parsec-class fix, zero client changes. - pf-mouse: UMDF2 HID minidriver, one fixed identity (PF:MO 5046:4D4F, obviously virtual, nothing fingerprints it), one 8-byte input report (5 buttons + absolute 15-bit X/Y + wheel + AC-pan). Transport is the sealed pad channel verbatim (Global\pfmouse-boot-0 mailbox + unnamed MouseShm DATA section) so pf-umdf-util's audited layer serves it unchanged; report delivery is event-driven (idle = no HID traffic). - host: inject::mouse_windows — VirtualMouse (SwDeviceCreate'd devnode + channel), ensure_resident() keeper thread started by every InjectorService (process-wide, PUNKTFUNK_NO_VIRTUAL_MOUSE opts out), vmouse-spike on-glass validation (cursor sweep via HID reports). - proto: mouse module (magic, boot-name, identity, report layout, unit-tested input_report packing). - SwDeviceProfile grows container_tag so the mouse's ContainerId family (PFMO) never groups with a pad's (PFDS) in the Devices UI. - packaging: pf-mouse rides the gamepad-driver build + install pipeline (build-gamepad-drivers.ps1, windows-drivers.yml, driver install --gamepad picks up every staged .inf). On-glass validated on winbox: devnode + HID child bind, SM_MOUSEPRESENT=1 with no physical mouse, cursor sweeps via HID reports (vmouse-spike). This work was implemented in a parallel session; committed here as the build prerequisite for the HID compose kick that follows. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-17 11:02:10 +02:00
enricobuehlerandClaude Opus 4.8	6e41356919	feat(protocol,clients): codec preference negotiation + Linux client decodes per Welcome (Phase 2a) ... Adds a client-selectable **preferred codec** and wires the core + ABI + probe + Linux client to negotiate and decode it. (Windows/Apple/Android follow in 2b.) **Core:** - `Hello.preferred_codec` (a single CODEC_* bit, 0 = auto) — a soft hint appended after `video_codecs`. `resolve_codec(client, host, preferred)` now honors the preference when the host can also emit it, else falls back to precedence (HEVC > AV1 > H.264). Roundtrip + preference tests. - `NativeClient::connect` takes `video_codecs` + `preferred_codec`; `NativeClient.codec` exposes the resolved `Welcome.codec`. - ABI: `punktfunk_connect_ex7` (adds the two codec params; `ex6` delegates to it advertising HEVC-only) + `punktfunk_connection_codec` getter + `PUNKTFUNK_CODEC_{H264,HEVC,AV1}` constants (drift-guarded against the wire values). Header regenerated. **Host:** passes `hello.preferred_codec` into `resolve_codec`. **probe:** `--codec h264|hevc|av1|auto` sets the preference (still advertises it can decode all three); the dump extension already follows the resolved codec. **Linux client:** advertises the codecs FFmpeg can actually decode (`decodable_codecs()`), threads the user's `codec` setting as the preference, and builds the decoder — both the software and VAAPI paths, plus the mid-session VAAPI→software demotion — from the negotiated `Welcome.codec` instead of hardcoding HEVC. New "Video codec" dropdown in Preferences (Automatic/HEVC/H.264/AV1). Live-validated on the dev box: probe `--codec hevc` against a software (H.264-only) host resolves to H.264 (graceful soft-preference fallback), no failure. clippy + core (57) + host (133) tests green. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-07-02 00:13:26 +00:00
enricobuehlerandClaude Opus 4.8	b2acebdf58	chore(windows): clean up build/packaging - drop vendored driver binaries + the LLVM-21 pin ... Now that the drivers build from source in CI, remove the dead checked-in binaries and the toolchain cruft they left behind: - Delete packaging/windows/{pf-vdisplay,gamepad-drivers}/ (the prebuilt .dll/.inf/.cat/.cer). pack-host-installer.ps1 builds + signs all three drivers from the drivers/ workspace and nothing reads the vendored dirs anymore; stage-pf-vdisplay.ps1's -VendorDir is now a mandatory build-output path, not a vendored default. - Drop the LLVM-21 pin. The vendored bindgen 0.71->0.72 bump (the shipping pack already builds green on the runner-default clang 22) retired the bindgen-0.71 layout-test overflow that needed LLVM 21.1.2, so windows-drivers.yml + provision-windows-wdk.ps1 no longer install/point at C:\llvm-21 (~898 MB off a fresh provision) - both driver builds now use one toolchain (clang 22 + bindgen 0.72). - pack -SkipBuild on the gamepad build (build-pf-vdisplay.ps1 already builds the whole workspace), build-web.ps1 reaps a stale node too, deploy-dev.ps1 nefconc path + comments. - Reword the vendored-driver references (build scripts, .iss, READMEs, the vite web-bundle comment) to the build-from-source reality. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-26 16:16:46 +00:00
enricobuehlerandClaude Opus 4.8	8d5e33da0f	fix(windows-installer): build the gamepad drivers from source in CI too ... Fold the pf-dualsense (DualSense / DualShock 4) and pf-xusb (Xbox 360 / XInput) UMDF drivers into the in-tree drivers workspace (their source had stale ../../crates/wdk-* path-deps from before the wdk vendoring reorg and could no longer build at all) and build them from source per release, exactly like pf-vdisplay - same anti-stale reasoning. One `cargo build --release` now builds all three drivers against the vendored wdk-sys (incl. the bindgen 0.72 pin), and build-gamepad-drivers.ps1 signs pf_dualsense + pf_xusb (clear FORCE_INTEGRITY -> sign dll -> stampinf -> Inf2Cat -> sign cat) with one shared cert + .cer, matching the layout install-gamepad-drivers.ps1 expects. pack-host-installer.ps1 builds + stages them instead of the retired checked-in binaries. Validated on the runner: the whole workspace (pf-vdisplay + pf-dualsense + pf-xusb) builds with CARGO_TARGET_DIR=C:\t set, and build-gamepad-drivers.ps1 produces signed pf_dualsense.{dll,inf,cat} + pf_xusb.{dll,inf,cat} + the .cer. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-26 15:08:40 +00:00