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nixos/xscreensaver: init module

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This adds a NixOS module for XScreenSaver (from @aidalgol in #130218,
with a few updates).

The module:

* Installs XScreenSaver
* Sets up a suid wrapper for xscreensaver-auth
* Sets up a user service for xscreensaver

The suid wrapper should function correctly when xscreensaver is
installed via the derivation update in 40a00547b71.

Co-authored-by: Aidan Gauland <aidalgol@fastmail.net>
Co-authored-by: Anderson Torres <torres.anderson.85@protonmail.com>
This commit is contained in:
Chris Marchesi 2023-11-23 12:31:34 -08:00 committed by Anderson Torres
parent 2034ea01b9
commit 54020c36a2
2 changed files with 41 additions and 0 deletions
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1
nixos/modules/module-list.nix
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@ -1406,6 +1406,7 @@
./services/x11/xautolock.nix
./services/x11/xbanish.nix
./services/x11/xfs.nix
./services/x11/xscreensaver.nix
./services/x11/xserver.nix
./system/activation/activatable-system.nix
./system/activation/activation-script.nix

40
nixos/modules/services/x11/xscreensaver.nix Normal file
View File

@ -0,0 +1,40 @@
{ config, lib, pkgs, ... }:
let
cfg = config.services.xscreensaver;
in
{
options.services.xscreensaver = {
enable = lib.mkEnableOption "xscreensaver user service";
package = lib.mkOption {
type = lib.types.package;
default = pkgs.xscreensaver;
defaultText = lib.literalExpression "pkgs.xscreensaver";
description = "Which xscreensaver package to use.";
};
};
config = lib.mkIf cfg.enable {
# Make xscreensaver-auth setuid root so that it can (try to) prevent the OOM
# killer from unlocking the screen.
security.wrappers.xscreensaver-auth = {
setuid = true;
owner = "root";
group = "root";
source = "${pkgs.xscreensaver}/libexec/xscreensaver/xscreensaver-auth";
};
systemd.user.services.xscreensaver = {
enable = true;
description = "XScreenSaver";
after = [ "graphical-session-pre.target" ];
partOf = [ "graphical-session.target" ];
wantedBy = [ "graphical-session.target" ];
path = [ cfg.package ];
serviceConfig.ExecStart = "${cfg.package}/bin/xscreensaver -no-splash";
};
};
meta.maintainers = with lib.maintainers; [ vancluever AndersonTorres ];
}