b0eba1c55d
This improves SDL's ability to detect joystick hotplug in a container environment. We cannot reliably receive events from udev in a container, because they are delivered as netlink events, which are authenticated by their uid being 0. However, in a user namespace created by an unprivileged user (for example bubblewrap, as used by Flatpak and Steam's pressure-vessel-wrap), the kernel does not allow us to map uid 0, and the netlink events appear to be from the kernel's overflowuid (typically 65534/nobody), meaning libudev cannot distinguish between genuine uevents from udevd and an attack by a malicious local user. Signed-off-by: Simon McVittie <smcv@collabora.com>
Simple DirectMedia Layer
(SDL)
Version 2.0
---
https://www.libsdl.org/
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)