Re: [RFC] mac80211: fix software decryption with b43legacy

[Larry Finger <larry.finger@lwfinger.net>]

Ulrich Kunitz wrote:
> Larry Finger wrote:
> 
>> I have added the lists to this message.
>>
>> I got b43legacy up and running with the software decryption modifications. 
>> It started OK with WPA-PSK TKIP encryption, but soon thereafter, I got this 
>> message:
>>
>> eth1: No ProbeResp from current AP 00:1a:70:46:ba:b1 - assume out of range
>>
> 
> Since the git tree reorg wireless-dev branch created comparable
> problems for zd1211rw-mac80211 too. It might be related:
> 
> Aug 19 07:08:51 keks kernel: [   83.572628] wlan0: CCMP replay detected for RX frame from 00:04:0e:68:ad:70 (RX PN 00000000000c <= prev. PN 00000000000c)
> Aug 19 07:08:54 keks kernel: [   87.432010] usb 1-2: handle_regs_int() regs interrupt ignored
> Aug 19 07:08:55 keks kernel: [   87.898447] wlan0: No ProbeResp from current AP 00:04:0e:68:ad:70 - assume out of range
> Aug 19 07:08:55 keks kernel: [   87.899649] wmaster0: Removed STA 00:04:0e:68:ad:70
> Aug 19 07:08:55 keks kernel: [   87.901406] wlan0: set_encrypt - unknown addr 00:04:0e:68:ad:70
> 
> The first message might be a simple duplicate. The
> handle_regs_int() is absolutely suspicious and I cannot really
> explain it right now. The "No ProbeResp" might be a follow-up
> problem. The whole USB subsystem becomes absolutely instable to
> the point that I can't use keyboard and mouse anymore. 
> 
> I will try Johannes' patch tomorrow.
> 
> BTW the wireless-dev reorg makes it impossible to actually use
> git-bisect to find the patch, which caused the problem. 
> 
> BTW the current Linus tree following patch doesn't work with the
> current zd1211rw-mac80211. The offending patch is the following one:
> 
> commit b9bf1e60a294fc7795d5198f94a917290e52865b
> Author: John W. Linville <linville@tuxdriver.com>
> Date:   Tue Aug 7 16:33:15 2007 -0400
> 
>     [PATCH] mac80211: probe for hidden SSIDs in pre-auth scan
>     
>     Probe for hidden SSIDs if initiating pre-authentication scan and SSID
>     is set for STA interface.
>     
>     Signed-off-by: John W. Linville <linville@tuxdriver.com>
> 

This patch is not in my tree, but adding it breaks WEP. WPA fails with it in or out at the moment. 
I'm still looking at that problem.

Larry