fix usbauth

1 files changed, 10 insertions, 8 deletions

diff --git a/modules/usbauth/default.nix b/modules/usbauth/default.nix
index aca217e..b10e426 100644
--- a/modules/usbauth/default.nix
+++ b/modules/usbauth/default.nix
@@ -12,15 +12,16 @@
   options.usbauth = lib.mkOption {
     description = "USB Auth";
     type = lib.types.submodule {
-      options = lib.mkOption {
-        device = lib.types.str;
-        keyname = lib.types.str;
-        uuid = lib.types.str;
+      options = {
+        enable = lib.mkOption { type = lib.types.bool; };
+        device = lib.mkOption { type = lib.types.str; };
+        keyname = lib.mkOption { type = lib.types.str; };
+        uuid = lib.mkOption { type = lib.types.str; };
       };
     };
   };
 
-  config = {
+  config = lib.mkIf config.usbauth.enable {
     boot.initrd.postDeviceCommands = pkgs.lib.mkBefore ''
       mkdir -m 0755 -p /key
       lsblk -o NAME,UUID
@@ -29,8 +30,9 @@
       mount -o ro "/dev/mapper/_key" /key
     '';
 
-    boot.initrd.luks.devices."${config.usbauth.device
-    }".keyFile = "/key/.keys/${config.usbauth.keyname}";
-    boot.initrd.luks.devices."${config.usbauth.device}".preLVM = false;
+    boot.initrd.luks.devices."${config.usbauth.device}" = {
+      keyFile = "/key/.keys/${config.usbauth.keyname}";
+      preLVM = false;
+    };
   };
 }