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2021-09-02seat: Avoid holding a tty fdKenny Levinsen
The kernel Secure Attention Key killer, triggered by SysRq+k, kills all processes that hold an fd referencing the tty. To avoid its attention, we stop storing the fd for the currently active VT in seat state. This has the added benefit of simplifying state a bit.
2021-02-27seatd: Tear down VT when disabled client closesKenny Levinsen
If a client closed while it was disabled, the VT would not be torn down. If the user navigated back to the VT it belonged to, they would be stuck. When a client is disabled, open the fd for the VT it belonged to and perform regular teardown on it.
2020-09-22terminal: Ack both release and acquireKenny Levinsen
Linux only requires acking release and ignores ack of acquire, but FreeBSD is more stringent and will patiently wait for both to be acked. Implement proper acking for both events.
2020-09-22seat: Rework seat activation/switch logicKenny Levinsen
The seat activation logic did not correctly handle VT switching and switching between multiple sessions. Session switching on VT-bound seats is now performed using a VT switch, taking advantage of VT signals to perform the actual switch. This simplifies switching logic and makes it more robust.
2020-08-31server: Convert seat list to linked_listKenny Levinsen
2020-08-03seat: Convert client list to linked listKenny Levinsen
2020-08-03seat: Convert device list to linked listKenny Levinsen
2020-08-02seat: Deactivate devices before sending disableKenny Levinsen
Previously, seatd would not deactivate devices until the client had acked the disable. In once instance, this lead to libinput spending significant time checking and closing each input device. As a workaround, mimick logind's behavior of deactivating devices first. The original behavior can be reintroduced if the client-side problem is fixed. Closes: https://todo.sr.ht/~kennylevinsen/seatd/5
2020-08-02seat: Open/close tty on activation/deactivationKenny Levinsen
The VT and KD ioctl's are picky about the tty fd used. In order to satisfy these, and to improve state cleanup, we now only and store the current tty when opening a client, and use this fd to perform teardown later. The presence of the fd is also used to signal that teardown is needed.
2020-08-01devices: Use path to check device typeKenny Levinsen
FreeBSD device numbers cannot be used to check the type of a device, as they are merely unique filesystem IDs. As the paths we use have been sanitized with realpath, we can simply use the path to check if a requested file is an evdev or drm device. This also allows us to make the check before the file is opened.
2020-07-31Initial implementation of seatd and libseatKenny Levinsen