Re: cooperative scanning patch

[Dan Williams <dcbw redhat com>]

On Tue, 2006-04-04 at 21:22 +0200, Theetjuh wrote:
> Dan,
> 
> 
> Should this help against the constant reconnects Simon B�d
> reported at 25 march ?

I talked to Jouni (wpa_supplicant guy) about this, and he thought that
drivers shouldn't report disconnect events when scanning.  This patch
won't really fix that, but I guess this means another round of driver
updates, unfortunately.  Ideally, all drivers would do background
scanning like Madwifi and Prism54 (fullmac).

Dan


> I've noticed the same problem, when watching 'wpa_cli'
> 
> On 3/30/06, Dan Williams <dcbw redhat com> wrote:
>         Hi, 
>         
>         Here's a reworked patch that makes use of the netlink/wireless
>         event
>         stuff from about a month ago.  It's got a few features:
>         
>         * Notices driver-provided scan completion events and pulls
>         from them
>         * Uses wpa_supplicant for scanning when a wireless connection
>         is active 
>         * Works around older drivers that don't send scan completion
>         events
>         * Doesn't block waiting for scan results
>         
>         Please test it out (against HEAD) and see if it works for you.
>         
>         I've noticed one fairly large issue though...  wpa_supplicant
>         seems to 
>         get its link state confused and doesn't reconnect.  I don't
>         know if this
>         is due to the driver not sending reconnect events or whether
>         wpa_supplicant is just dumb.  It doesn't appear that
>         wpa_supplicant has
>         much special logic to 'fake' a connection through a scan,
>         which sucks 
>         for us.  More investigation is certainly needed.
>         
>         Dan
>         
>         
>         
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> 
> 
> -- 
> 
> 
> Greetz
> Theetjuh 
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