Return-path: Received: from mx1.redhat.com ([66.187.233.31]:39349 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751969AbYCKQ7M (ORCPT ); Tue, 11 Mar 2008 12:59:12 -0400 Subject: Re: [PATCH] PS3: gelic: ignore scan info from zero SSID beacons From: Dan Williams To: Johannes Berg Cc: Masakazu Mokuno , "John W. Linville" , linux-wireless@vger.kernel.org, cbe-oss-dev@ozlabs.org, Geert Uytterhoeven , Stefan Assmann In-Reply-To: <1205252287.6387.54.camel@johannes.berg> References: <20080311130630.0AF0.40F06B3A@sm.sony.co.jp> (sfid-20080311_051712_368863_0E0A4ECC) <1205252287.6387.54.camel@johannes.berg> Content-Type: text/plain Date: Tue, 11 Mar 2008 12:50:37 -0400 Message-Id: <1205254237.8774.0.camel@localhost.localdomain> (sfid-20080311_165919_163294_FB56907D) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2008-03-11 at 17:18 +0100, Johannes Berg wrote: > On Tue, 2008-03-11 at 13:15 +0900, Masakazu Mokuno wrote: > > Some implementations of the hidden SSID APs emit beacons which have the zero > > length SSID information element instead of SSID padded by null (\0) characters. > > If the firmware of the PS3 wireless hardware meets these beacons, it abandons parsing > > IEs. Thus guest OSes get the invalid scan information for the AP. > > > > To work around this, ignore these scan informations from the list. > > I'm not sure this is a good idea. Is there any way to get at decent > information from those beacons? Yeah, there are quite a few of these out there. Ideally the firmware wouldn't puke on it... Dan