Draft for new libnet internals

Hello all,

During CanSecWest, I talked to Mike about new internals for libnet. As
it seems to be ok, I started to code the new internal structures :

http://www.security-labs.org/index.php3?page=libnetng

The goal is to be fully compliant with the current API, but also to
provide new functions, and a more efficient memory management. For
instance, I'd like to add writing functions like those in libpcap
using callback functions, or also to provide interoperability
functions with libdnet and libpcap.

As this is a draft, comments are expected. I hope to be able to port
the current libnet to these structures asap.

Feel free to ask questions as this draft may not always be very clear.

	Fred Raynal