Mariano Abad eec14a0592 drm: refuse a libdrmtap that cannot do the split export
The root --service must never load libEGL/libGLESv2: the point of the split is
that it exports the scanout dma-buf and the unprivileged --server converts. Two
paths could still break that, both because the loader accepted a library too
old to export.

drm_prewarm() called grab() when the loaded .so had no drmtap_grab_desc, and
grab() maps and detiles, so the privileged process pulled in the vendor GL stack
at startup, before any consumer had asked for a frame. The per-connection
capture loop then did the same for every frame, through the CPU fallback.

The version guard could not prevent it: it compared the ABI major only, and this
library is still 0.x, so every release it has ever made passed. Add a floor at
0.4.9, where the split entry points landed, and require the three split symbols,
which also rejects a build that reports a new enough version without carrying
them. That is not hypothetical: a pre-release stamped 0.4.15 shipped without the
multi-GPU accessors. Both refusals fall back to PipeWire/portal and say which
file and which symbols, at warn level.

The split symbols are no longer Options, so the type system carries the
guarantee instead of a convention. What is left of the CPU path is only what it
was meant to be: the consumer has no render node of its own, or the seat exports
no transferable dma-buf. Both are facts about the hardware, with no alternative
that keeps the stream, and neither is a property of which file was on the load
path.

Verified against the real library on i915. With 0.4.15 the export path captures
a tiled XR30 scanout and libEGL stays out of /proc/self/maps, while the old
grab() branch maps it, so the finding reproduces. A stub reporting 0.4.8 and a
stub reporting 0.4.15 without the split symbols are both refused, each with its
own diagnostic. The mirrored repr(C) layouts are unchanged across 0.4.9 to
0.4.15, checked field by field against include/drmtap.h at both ends, so the
floor costs no compatibility that was real.
2026-07-28 08:28:53 -03:00
2026-06-18 22:37:15 +08:00
2026-07-06 18:00:39 +08:00
2025-03-14 00:21:05 +08:00
2026-04-21 16:27:39 +08:00
2021-08-05 11:27:56 +08:00
2026-01-07 14:11:20 +08:00
2026-06-02 23:33:40 +08:00
2025-11-28 10:45:48 +08:00
2026-04-09 15:12:57 +08:00
2026-05-26 11:45:15 +08:00
2026-04-09 15:12:57 +08:00
2022-05-29 23:01:09 +08:00
2025-10-27 16:52:36 +08:00

RustDesk - Your remote desktop
BuildDockerStructureSnapshot
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Caution

Misuse Disclaimer:
The developers of RustDesk do not condone or support any unethical or illegal use of this software. Misuse, such as unauthorized access, control or invasion of privacy, is strictly against our guidelines. The authors are not responsible for any misuse of the application.

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RustDesk Server Pro

Yet another remote desktop solution, written in Rust. Works out of the box with no configuration required. You have full control of your data, with no concerns about security. You can use our rendezvous/relay server, set up your own, or write your own rendezvous/relay server.

image

RustDesk welcomes contribution from everyone. See CONTRIBUTING.md for help getting started.

FAQ

BINARY DOWNLOAD

NIGHTLY BUILD

Get it on F-Droid Get it on Flathub

Dependencies

Desktop versions use Flutter or Sciter (deprecated) for GUI, this tutorial is for Sciter only, since it is easier and more friendly to start. Check out our CI for building Flutter version.

Please download Sciter dynamic library yourself.

Windows | Linux | macOS

Raw Steps to build

  • Prepare your Rust development env and C++ build env

  • Install vcpkg, and set VCPKG_ROOT env variable correctly

    • Windows: vcpkg install libvpx:x64-windows-static libyuv:x64-windows-static opus:x64-windows-static aom:x64-windows-static
    • Linux/macOS: vcpkg install libvpx libyuv opus aom
  • run cargo run

Build

How to Build on Linux

Ubuntu 18 (Debian 10)

sudo apt install -y zip g++ gcc git curl wget nasm yasm libgtk-3-dev clang libxcb-randr0-dev libxdo-dev \
        libxfixes-dev libxcb-shape0-dev libxcb-xfixes0-dev libasound2-dev libpulse-dev cmake make \
        libclang-dev ninja-build libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libpam0g-dev

openSUSE Tumbleweed

sudo zypper install gcc-c++ git curl wget nasm yasm gcc gtk3-devel clang libxcb-devel libXfixes-devel cmake alsa-lib-devel gstreamer-devel gstreamer-plugins-base-devel xdotool-devel pam-devel

Fedora 28 (CentOS 8)

sudo yum -y install gcc-c++ git curl wget nasm yasm gcc gtk3-devel clang libxcb-devel libxdo-devel libXfixes-devel pulseaudio-libs-devel cmake alsa-lib-devel gstreamer1-devel gstreamer1-plugins-base-devel pam-devel

Arch (Manjaro)

sudo pacman -Syu --needed unzip git cmake gcc curl wget yasm nasm zip make pkg-config clang gtk3 xdotool libxcb libxfixes alsa-lib pipewire

Install vcpkg

git clone https://github.com/microsoft/vcpkg
cd vcpkg
git checkout 2023.04.15
cd ..
vcpkg/bootstrap-vcpkg.sh
export VCPKG_ROOT=$HOME/vcpkg
vcpkg/vcpkg install libvpx libyuv opus aom

Fix libvpx (For Fedora)

cd vcpkg/buildtrees/libvpx/src
cd *
./configure
sed -i 's/CFLAGS+=-I/CFLAGS+=-fPIC -I/g' Makefile
sed -i 's/CXXFLAGS+=-I/CXXFLAGS+=-fPIC -I/g' Makefile
make
cp libvpx.a $HOME/vcpkg/installed/x64-linux/lib/
cd

Build

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env
git clone --recurse-submodules https://github.com/rustdesk/rustdesk
cd rustdesk
mkdir -p target/debug
wget https://raw.githubusercontent.com/c-smile/sciter-sdk/master/bin.lnx/x64/libsciter-gtk.so
mv libsciter-gtk.so target/debug
VCPKG_ROOT=$HOME/vcpkg cargo run

How to build with Docker

Begin by cloning the repository and building the Docker container:

git clone https://github.com/rustdesk/rustdesk
cd rustdesk
git submodule update --init --recursive
docker build -t "rustdesk-builder" .

Then, each time you need to build the application, run the following command:

docker run --rm -it -v $PWD:/home/user/rustdesk -v rustdesk-git-cache:/home/user/.cargo/git -v rustdesk-registry-cache:/home/user/.cargo/registry -e PUID="$(id -u)" -e PGID="$(id -g)" rustdesk-builder

Note that the first build may take longer before dependencies are cached, subsequent builds will be faster. Additionally, if you need to specify different arguments to the build command, you may do so at the end of the command in the <OPTIONAL-ARGS> position. For instance, if you wanted to build an optimized release version, you would run the command above followed by --release. The resulting executable will be available in the target folder on your system, and can be run with:

target/debug/rustdesk

Or, if you're running a release executable:

target/release/rustdesk

Please ensure that you run these commands from the root of the RustDesk repository, or the application may not find the required resources. Also note that other cargo subcommands such as install or run are not currently supported via this method as they would install or run the program inside the container instead of the host.

File Structure

Screenshots

Connection Manager

Connected to a Windows PC

File Transfer

TCP Tunneling

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