[ns] how to implement extension to NS2

[Syed Md. Ashraful Karim]

Hi
I want implement a security extension to ad-hoc routing protocol in ns2.33. If anybody knows how to extend ns2, which core ns2.33 files are to be edited, or any tutorial on writing extension, please help me. Oh, I am a newbie in NS2 and C++ (not in C).
Thanks,
Ashraf
Norwegian University of Science and Technology, Trondheim, Norway.