Freebsd7.0 - errors in compilation

[rajasooriyar lakshman]

Hello,

I am new to FreeBSD....My question is regarding a compilation of a routing protocol in FreeBSD 7.0. 

I am trying to run a adhoc routing protocol called, Dynamic Source Routing (DSR) on my freebsd router (7.0).. I have got the implementation from the link given below.

http://www.monarch.cs.rice.edu/pran/Rice_PRAN_v2.tar.gz

Infact the implementation on the link is compatible with FreeBSD 5.1. That is why I get errors such as files, opt_ bdg.h, opt_ random_ ip_ id.h  are missing. Because of this I could not compile the kernel. 
 
Can any one please suggest me as to how can I compile the package successfully on FreeBSD 7.0. I would very much appreciate, if some one could fix the errors for me. 
 
Thanks in advance.
 
Regards,
 
Raj.