1 files changed, 38 insertions, 0 deletions
diff --git a/sys/auth/oath.nix b/sys/auth/oath.nix
new file mode 100644
index 0000000..6b00680
--- /dev/null
+++ b/sys/auth/oath.nix
@@ -0,0 +1,38 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.local.auth.oath;
+in {
+  options.local.auth.oath = {
+    enable = lib.mkEnableOption "pam-oath";
+  };
+
+  config = lib.mkIf cfg.enable {
+    security.pam = {
+      oath = {
+        digits = 6;
+        window = 30;
+
+        usersFile = "/var/trust/auth/users.oath";
+      };
+
+      services.sshd.oathAuth = true;
+    };
+
+    users.users.tunnel = {
+      uid = 1100;
+      group = "nogroup";
+      isSystemUser = true;
+
+      # Requiere oath
+      password = "tunnel";
+
+      home = "/var/empty";
+      shell = "${pkgs.coreutils}/bin/true";
+    };
+  };
+}