Adding ecryptfs, and one of its dependencies: keyutils.

(I have not tried whether they work)

svn path=/nixpkgs/trunk/; revision=19645

pkgs/os-specific/linux/keyutils/default.nix

@@ -0,0 +1,25 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation rec {
+  name = "keyutils-1.2";
+  
+  src = fetchurl {
+    url = http://people.redhat.com/dhowells/keyutils/keyutils-1.2.tar.bz2;
+    sha256 = "0gcv47crbaw6crgn02j1w75mknhnwgkhmfcmwq2qi9iwiwprnv9h";
+  };
+
+  patchPhase = ''
+    sed -i -e "s, /etc, $out/etc," \
+        -e "s, /bin, $out/bin," \
+        -e "s, /sbin, $out/sbin," \
+        -e "s, /lib, $out/lib," \
+        -e "s,/usr,$out," \
+        Makefile
+  '';
+  
+  meta = {
+    homepage = http://people.redhat.com/dhowells/keyutils/;
+    description = "Tools used to control the Linux kernel key management system";
+    license = "GPLv2+";
+  };
+}