HEADSUP: updated net80211 layer committed

[Sam Leffler]

I just committed a major update to the 802.11 support.  I did my best to 
verify all existing users compile and work (where I have cards) but there's 
sure to be some fallout.  In particular I expect that wi cards operating in 
hostap with wep will need some fixup.  If you encounter problems please post 
here as I've been promised other folks will assist in handling issues.

There are many new features added.  The most important probably is that there 
is now full support for WPA, 802.11i, and 802.1x though the wpa_supplicant 
and hostap programs.  I've got simple ports for these packages 

http://people.freebsd.org/~sam/security-wpa_supplicant.tgz
http://people.freebsd.org/~sam/security-hostapd.tgz

If someone wants to step up and see them committed it would be appreciated.

More work will be filtering in to the tree.  I've got a revised ifconfig that 
hooks up to all the new 802.11 functionality and a dhclient that understands 
events generated by the 802.11 layer so, for example, roaming between AP's 
results in fast IP address changes.

	Sam