On Tue, 11 Mar 2008 13:10:24 -0400 "John W. Linville" <linville@xxxxxxxxxxxxx> wrote: > On Tue, Mar 11, 2008 at 12:50:37PM -0400, Dan Williams wrote: > > 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... > > Is a firmware update a possibility? We've had these discussions > before. I doubt Sony is any more excited about a firmware spin than > Intel has been. The fix is already scheduled and is under testing. The future update of the system software for PS3 should have the fix. > Does this problem apply to probe responses as well? (Do probe > responses from hidden SSID APs still exclude the SSID? I would > guess not.) There has been a problem in parsing IEs, so if the received probe responses include zero length IEs, they also suffer this bug. > As long as you can still associate w/ hidden SSID APs, I don't see > a big problem. Even if you can't, no information for those APs is > probably better than bad information, no? I was anxious that the userland apps or the users may get confused. Any other thing harmful is not found. OK, I withdraw this patch. Thanks for the reviews. -- Masakazu MOKUNO -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
