add pppoe

overlay.nix

@@ -3,4 +3,50 @@ final: prev: {
   s6-init-files = final.callPackage ./pkgs/s6-init-files {};
   strace = prev.strace.override { libunwind = null; };
   liminix = final.callPackage ./pkgs/liminix-tools {};
+  pppoe = prev.rpPPPoE.overrideAttrs (o: {
+    # use newer rp-pppoe, it builds cleanly
+    src = final.fetchFromGitHub {
+      owner = "dfskoll";
+      repo = "rp-pppoe";
+      rev = "7cfd8c0405d14cf1c8d799d41d8207fd707979c1";
+      hash = "sha256-MFdCwNj8c52blxEuXH5ltT2yYDmKMH5MLUgtddZV25E=";
+    };
+  });
+  ppp =
+    (prev.ppp.override {
+      libpcap = null;
+    }).overrideAttrs (o : {
+      stripAllList = [ "bin" ];
+      buildInputs = [];
+
+      # patches =
+      #   o.patches ++
+      #   [(final.fetchpatch {
+      #     name = "ipv6-script-options.patch";
+      #     url = "https://github.com/ppp-project/ppp/commit/874c2a4a9684bf6938643c7fa5ff1dd1cf80aea4.patch";
+      #     sha256 = "sha256-K46CKpDpm1ouj6jFtDs9IUMHzlRMRP+rMPbMovLy3o4=";
+      #   })];
+
+      postPatch = ''
+        sed -i -e  's@_PATH_VARRUN@"/run/"@'  pppd/main.c
+        sed -i -e  's@^FILTER=y@# FILTER unset@'  pppd/Makefile.linux
+        sed -i -e  's/-DIPX_CHANGE/-UIPX_CHANGE/g'  pppd/Makefile.linux
+      '';
+      buildPhase = ''
+        runHook preBuild
+        make -C pppd CC=$CC USE_TDB= HAVE_MULTILINK= USE_EAPTLS= USE_CRYPT=y
+        make -C pppd/plugins/pppoe CC=$CC
+        make -C pppd/plugins/pppol2tp CC=$CC
+        runHook postBuild;
+      '';
+      installPhase = ''
+        runHook preInstall
+        mkdir -p $out/bin $out/lib/pppd/2.4.9
+        cp pppd/pppd pppd/plugins/pppoe/pppoe-discovery $out/bin
+        cp pppd/plugins/pppoe/pppoe.so $out/lib/pppd/2.4.9
+        cp pppd/plugins/pppol2tp/{open,pppo}l2tp.so $out/lib/pppd/2.4.9
+        runHook postInstall
+      '';
+      postFixup = "";
+    });
 }