* Expose networking.interfaces as an attribute set keyed on the

interface name through the derived option networking.ifaces.  This
  makes it easier to get information about specific interfaces
  (e.g. `nodes.router.config.networking.ifaces.eth2.ipAddress').
  Really networking.interfaces should be an attribute set.

svn path=/nixos/trunk/; revision=21938

modules/tasks/network-interfaces.nix

@@ -117,6 +117,16 @@ in
       
     };
 
+    networking.ifaces = mkOption {
+      default = listToAttrs
+        (map (iface: { name = iface.name; value = iface; }) config.networking.interfaces);
+      internal = true;
+      description = ''
+        The network interfaces in <option>networking.interfaces</option>
+        as an attribute set keyed on the interface name.
+      '';
+    };
+    
   };