Does free radius support diameter? And If not is it easy to make it support diameter via modified the source code?

Hi: I have a node in my target system that has two interfaces of which one is diameter and the other is radius.So only radius protocol is supported does not meet the requirement.So does anybody know whether free radius support diameter or not(as far as I know it does not).If not supported, is there a way to make it support the diameter via modifying the souce codes or what else? Is it a tough job or an easy one,how much efforts shall be made? Br /Leon