nixpkgs/nixos/modules/services/security/physlock.nix
2017-03-15 11:47:02 +01:00

105 lines
2.6 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.physlock;
in
{
###### interface
options = {
services.physlock = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable the <command>physlock</command> screen locking mechanism.
Enable this and then run <command>systemctl start physlock</command>
to securely lock the screen.
This will switch to a new virtual terminal, turn off console
switching and disable SysRq mechanism (when
<option>services.physlock.disableSysRq</option> is set)
until the root or user password is given.
'';
};
disableSysRq = mkOption {
type = types.bool;
default = true;
description = ''
Whether to disable SysRq when locked with physlock.
'';
};
lockOn = {
suspend = mkOption {
type = types.bool;
default = true;
description = ''
Whether to lock screen with physlock just before suspend.
'';
};
hibernate = mkOption {
type = types.bool;
default = true;
description = ''
Whether to lock screen with physlock just before hibernate.
'';
};
extraTargets = mkOption {
type = types.listOf types.str;
default = [];
example = [ "display-manager.service" ];
description = ''
Other targets to lock the screen just before.
Useful if you want to e.g. both autologin to X11 so that
your <filename>~/.xsession</filename> gets executed and
still to have the screen locked so that the system can be
booted relatively unattended.
'';
};
};
};
};
###### implementation
config = mkIf cfg.enable {
# for physlock -l and physlock -L
environment.systemPackages = [ pkgs.physlock ];
systemd.services."physlock" = {
enable = true;
description = "Physlock";
wantedBy = optional cfg.lockOn.suspend "suspend.target"
++ optional cfg.lockOn.hibernate "hibernate.target"
++ cfg.lockOn.extraTargets;
before = optional cfg.lockOn.suspend "systemd-suspend.service"
++ optional cfg.lockOn.hibernate "systemd-hibernate.service"
++ cfg.lockOn.extraTargets;
serviceConfig.Type = "forking";
script = ''
${pkgs.physlock}/bin/physlock -d${optionalString cfg.disableSysRq "s"}
'';
};
};
}