[RFC] wpa_supplicant: add fast reconnect support

[Johannes Berg]

On Wed, 2011-09-21 at 11:36 -0700, Sam Leffler wrote:

> > I looked at this in more detail since I want something like this too for
> > resume support, but I don't like the way you play with the internal
> > state machines -- not advancing it at all but still calling back into
> > the core code etc. I think that adds too much fragility to an already
> > pretty finicky system.
> 
> I totally agree.  Since that patch I had to fix some edge cases and
> there may still be more.  I think to make this work right it needs to
> be carefully tied to the SME pieces of supplicant or madness will
> ensue.  OTOH all this could be dramatically simplified if one could
> just re-auth w/o having to re-establish the BSS entry in the kernel by
> doing the 1-channel scan...

:-)

I don't think it's actually possible though since we rely on the BSS
entry for a whole bunch of things like knowing what we're connected to.

Maybe it'd be possible to hide it in driver_nl80211?

johannes