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