[9fans] scanning for base stations/access points

[David Presotto <presotto@plan9.bell-labs.com>]

I've updated the kernel sources for:

port/netif.h
port/netif.c
port/wavelan.h
port/wavelan.c

to try to get scanning for base stations/access points to
work.  I ripped off what I could from Linux but seem to be
faiing miserably.  If I don't set the essid, the scanning seems
to work but doesn't return the essid of the access points.
It also doesn't get all the access points in range.  If I
set the essid, it gets them all and returns the essid values.

I'm clearly doing something wrong but don't see what.  If
anyone can help, I'ld appreciate it.

To get the scanning to work:

	% cd /net/ether0/0
	% cat data &
	% echo scanbs 5 > ctl

The '5' is the seconds between scans (5 is the minimum).

You might also want to turn stuff off to see if it changes
things:

	% echo crypt off > ctl
	% echo essid default > ctl

Thanks