ndppd module: init (#35533)

pkgs/applications/networking/ndppd/default.nix

@@ -1,6 +1,11 @@
-{ stdenv, fetchFromGitHub, gzip, ... }:
+{ stdenv, fetchFromGitHub, fetchurl, gzip, ... }:
 
-stdenv.mkDerivation rec {
+let
+  serviceFile = fetchurl {
+    url = "https://raw.githubusercontent.com/DanielAdolfsson/ndppd/f37e8eb33dc68b3385ecba9b36a5efd92755580f/ndppd.service";
+    sha256 = "1zf54pzjfj9j9gr48075njqrgad4myd3dqmhvzxmjy4gjy9ixmyh";
+  };
+in stdenv.mkDerivation rec {
   name = "ndppd-${version}";
   version = "0.2.5";
 
@@ -19,6 +24,16 @@ stdenv.mkDerivation rec {
     substituteInPlace Makefile --replace /bin/gzip ${gzip}/bin/gzip
   '';
 
+  postInstall = ''
+    mkdir -p $out/etc
+    cp ndppd.conf-dist $out/etc/ndppd.conf
+
+    mkdir -p $out/lib/systemd/system
+    # service file needed for our module is not in release yet
+    substitute ${serviceFile} $out/lib/systemd/system/ndppd.service \
+      --replace /usr/sbin/ndppd $out/sbin/ndppd
+  '';
+
   meta = {
     description = "A daemon that proxies NDP (Neighbor Discovery Protocol) messages between interfaces";
     homepage = https://github.com/DanielAdolfsson/ndppd;