[B.A.T.M.A.N.] editing the routing information

Hi all,

I am using the batmand release and I trying to edit where batman keeps
a statistic of next best hops to a destination node. I want to change
the metric in some way to alter the choices that batman makes when
routing a packet to its destination. However I am rather stuck, and
would appreciate some direction on where the updating of this
statistic of next best hops for a destination is done in the batman
code.

Many Thanks
Dominic