Re: Patch for collecting SSID from other APs

From: Jouni Malinen (
Date: 2002-06-16 18:55:26 UTC

On Wed, Jun 12, 2002 at 01:54:07PM -0700, Jean Tourrilhes wrote:

> For the last few months, Wireless Extensions has included an
> API for scanning, that allow to dump various info about Access Points
> in a flexible manner.
> When you are in AP mode, you could use the above information
> and feed it to Wireless Extensions. Actually, I'm curious on well it
> would fit my current architecture and what attributes I would need to
> add for you ;-).

I did not (yet) add code to convert recorded beacon data to WE format, but I will probably do that at some point. There should not be any need for changes since data collected from beacons is more or less equal to data received from active scanning (ProbeResponses). Up to date data is present all the time, so there will not be need for waiting for scanning to complete in SIOCGIWSCAN.

> When you are in station mode, you could just cut'n'paste the
> code availalble in my orinoco patch (actually, I could give you tips
> on the RID version for PrismII which might be cleaner).

I've merged the changes (thanks for the patch!) to Host AP driver. Current versions seems to work fine as long as station firmware version is 0.8.3 or newer. I will take a look at implementing host-based roaming after which support for WE scanning could be added also for older f/w versions.

Jouni Malinen                                            PGP id EFC895FA

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