programs.mtr: init setcap-wrapper

nixos/modules/module-list.nix

@@ -80,6 +80,7 @@
   ./programs/light.nix
   ./programs/man.nix
   ./programs/mosh.nix
+  ./programs/mtr.nix
   ./programs/nano.nix
   ./programs/oblogout.nix
   ./programs/screen.nix

nixos/modules/programs/mtr.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.mtr;
+in {
+  options = {
+    programs.mtr = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to add mtr to the global environment and configure a
+          setcap wrapper for it.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    security.wrappers.mtr = {
+      source = "${pkgs.mtr}/bin/mtr";
+      capabilities = "cap_net_raw+p";
+    };
+  };
+}