1 files changed, 51 insertions, 0 deletions
diff --git a/sys/boot/secure-boot.nix b/sys/boot/secure-boot.nix
new file mode 100644
index 0000000..b13ab7c
--- /dev/null
+++ b/sys/boot/secure-boot.nix
@@ -0,0 +1,51 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.local.boot.secureBoot;
+
+  pkiBundle =
+    if cfg.legacyPath
+    then "/etc/secureboot"
+    else "/var/lib/sbctl";
+in {
+  options.local.boot.secureBoot = {
+    enable = mkEnableOption "secure boot";
+
+    legacyPath = mkOption {
+      type = types.bool;
+      default = false;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = config.local.boot.efi.enable;
+        message = "secure boot requires EFI";
+      }
+      {
+        assertion = config.local.boot.loader == "systemd-boot";
+        message = "lanzaboote requires systemd-boot";
+      }
+    ];
+
+    boot = {
+      loader.systemd-boot.enable = mkForce false;
+
+      lanzaboote = {
+        enable = true;
+        inherit pkiBundle;
+      };
+    };
+
+    environment.systemPackages = [
+      pkgs.sbctl
+    ];
+
+    local.boot.impermanence.directories = [pkiBundle];
+  };
+}