sys/hardware/yubico: enable pam-u2f

1 files changed, 39 insertions, 2 deletions

diff --git a/sys/hardware/yubico.nix b/sys/hardware/yubico.nix
index 0c8478c..0c26133 100644
--- a/sys/hardware/yubico.nix
+++ b/sys/hardware/yubico.nix
@@ -7,8 +7,22 @@
 with lib; let
   cfg = config.local.hardware.yubico;
 in {
-  options.local.hardware.yubico = {
-    enable = mkEnableOption "Yubico hardware support";
+  options = {
+    local.hardware.yubico = {
+      enable = mkEnableOption "Yubico hardware support";
+
+      pamAuth = mkOption {
+        type = lib.types.bool;
+        default = false;
+      };
+    };
+
+    security.pam.services = mkOption {
+      type = with lib.types;
+        attrsOf (submodule {
+          config.u2fAuth = lib.mkDefault false;
+        });
+    };
   };
 
   config = mkIf cfg.enable {
@@ -16,6 +30,29 @@ in {
       module: ${pkgs.yubico-piv-tool}/lib/libykcs11.so
     '';
 
+    security.pam = mkIf cfg.pamAuth {
+      u2f = {
+        enable = true;
+        control = "sufficient";
+
+        settings = {
+          authfile = "/var/trust/pam_u2f_keys";
+          cue = true;
+          pinverification = true;
+          userpresence = false;
+          userverification = false;
+        };
+      };
+
+      services = {
+        gtklock.u2fAuth = true;
+        su.u2fAuth = true;
+        sudo.u2fAuth = true;
+        systemd-run0.u2fAuth = true;
+        vlock.u2fAuth = true;
+      };
+    };
+
     services = {
       pcscd.enable = true;
       udev.packages = [pkgs.yubikey-personalization];