I am using CCNx Protocol implemented in Contiki OS. Details of this implementation are available in the given link. And source code for this protocol is also given in attachment. In this protocol, broadcast mode is implemented. I want to use this protocol in multicast or unicast mode. Whats changes will be required. Code for broadcast mode is given in ccn_driver.c file which is present in this folder contiki/core/net/ccn.
Your advantageous and valuable help is required.
https://hal.inria.fr/hal-00755482/file/RT-432.pdf
http://ccnx-contiki.gforge.inria.fr/ccnx_contiki.tgz