nixpkgs/nixos/modules/virtualisation/virtualbox-guest.nix

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# Module for VirtualBox guests.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.virtualisation.virtualbox.guest;
kernel = config.boot.kernelPackages;
in
{
###### interface
options.virtualisation.virtualbox.guest = {
enable = mkOption {
default = false;
type = types.bool;
description = "Whether to enable the VirtualBox service and other guest additions.";
};
x11 = mkOption {
default = true;
type = types.bool;
description = "Whether to enable x11 graphics";
};
};
###### implementation
config = mkIf cfg.enable (mkMerge [{
assertions = [{
assertion = pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64;
message = "Virtualbox not currently supported on ${pkgs.stdenv.system}";
}];
environment.systemPackages = [ kernel.virtualboxGuestAdditions ];
boot.extraModulePackages = [ kernel.virtualboxGuestAdditions ];
boot.supportedFilesystems = [ "vboxsf" ];
boot.initrd.supportedFilesystems = [ "vboxsf" ];
users.extraGroups.vboxsf.gid = config.ids.gids.vboxsf;
systemd.services.virtualbox =
{ description = "VirtualBox Guest Services";
wantedBy = [ "multi-user.target" ];
requires = [ "dev-vboxguest.device" ];
after = [ "dev-vboxguest.device" ];
unitConfig.ConditionVirtualization = "oracle";
serviceConfig.ExecStart = "@${kernel.virtualboxGuestAdditions}/bin/VBoxService VBoxService --foreground";
};
services.udev.extraRules =
''
# /dev/vboxuser is necessary for VBoxClient to work. Maybe we
# should restrict this to logged-in users.
KERNEL=="vboxuser", OWNER="root", GROUP="root", MODE="0666"
# Allow systemd dependencies on vboxguest.
SUBSYSTEM=="misc", KERNEL=="vboxguest", TAG+="systemd"
'';
} (mkIf cfg.x11 {
services.xserver.videoDrivers = mkOverride 50 [ "virtualbox" "modesetting" ];
services.xserver.config =
''
Section "InputDevice"
Identifier "VBoxMouse"
Driver "vboxmouse"
EndSection
'';
services.xserver.serverLayoutSection =
''
InputDevice "VBoxMouse"
'';
services.xserver.displayManager.sessionCommands =
''
PATH=${makeBinPath [ pkgs.gnugrep pkgs.which pkgs.xorg.xorgserver.out ]}:$PATH \
${kernel.virtualboxGuestAdditions}/bin/VBoxClient-all
'';
})]);
}