sys/boot: rename sb.nix -> secure-boot.nix

1 files changed, 37 insertions, 0 deletions

diff --git a/sys/boot/secure-boot.nix b/sys/boot/secure-boot.nix
new file mode 100644
index 0000000..bdf7f0f
--- /dev/null
+++ b/sys/boot/secure-boot.nix
@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+with lib; let
+  cfg = config.local.boot.secureBoot;
+in
+{
+  options.local.boot.secureBoot = {
+    enable = mkEnableOption "secure boot";
+  };
+
+  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;
+        pkiBundle = "/etc/secureboot";
+      };
+    };
+
+    environment.systemPackages = [
+      pkgs.sbctl
+    ];
+
+    local.boot.impermanence.directories = [ "/etc/secureboot" ];
+  };
+}