[ath9k-devel] [PATCH] ath9k_htc: advertise support for TDLS

[Csaba Kiraly <csaba.kiraly@gmail.com>]

On Thu Aug 21 21:29:46 2014, Oleksij Rempel wrote:
>
> Am 19.08.2014 um 21:00 schrieb Csaba Kiraly:
>>
>> On 19/08/2014 10:27, Oleksij Rempel wrote:
>>>
>>> Oppss... wrong email address.
>>>
>>> Am 19.08.2014 um 10:25 schrieb Oleksij Rempel:
>>>>
>>>> Am 18.08.2014 um 01:53 schrieb Csaba Kiraly:
>>>>>
>>>>> Based on a quick test with AR9271, TDLS seems to be working fine.
>>>>>
>>>>> Tests were done with 2 Atheros AR9271 based devices with firmware
>>>>> 1.3 (sha1 8d49f928aa40ac53c729189bff1333cd373a7fb5), associated
>>>>> with a WAP54G access point.
>>>>
>>>>
>>>> please, don't use firmware 1.3. Use git source, or you can get
>>>> precompiled version here:
>>>> https://github.com/olerem/ath9k-htc-firmware-blob
>>>
>>
>>
>> I have just tried it with the latest firmware from git
>> (dc465e811c0272df7ec93b67de393129ff614173). Works fine.
>>
>>>
>>>>
>>>>
>>>>>
>>>>> TDLS worked fine both in WPA2 mode and
>>>>> without encryption. Stations maintained ping flood traffic between
>>>>> each other and towards the AP without significant losses.
>>>>>
>>>>> Not tested with AR7010.
>>>>
>>>>
>>>> Seems ok for me. How can i reproduce testing environment?
>>>
>>
>>
>> Here it comes. I try to give a detailed description, although I suppose
>> you don't need most of it :)
>> I have used two laptops, two TP-Link TL-WN722N USB devices, and a
>> Linksys WAP54g AP.
>>
>> # 0) stop conflicting services, clean up files
>> service network-manager stop
>> killall wpa_supplicant
>> killall dhclient
>> rm -rf /run/wpa_supplicant
>>
>> # 1) on both nodes, start wpa_supplicant and connect to the same AP.
>> # Conf files attached
>> hostap/wpa_supplicant/wpa_supplicant -D nl80211 -i wlan2 -c 
>> wpa_supplicant_wap54g_WPA2.conf
>>
>> # 2) on each node, configure IP addresses (or start dhclient)
>> ifconfig wlan2 $IP1
>> ifconfig wlan2 $IP2
>>
>> # 3) start pinging the other node
>> ping $IP2
>>
>> # 4) start pinging the AP
>> ping $IPAP
>>
>> # 5) get MAC of node2's Atheros card
>> # get it on node2, or directly on node1 from the arp cache
>> arp -n
>>
>> # 6) on node1, start wpa_cli
>> hostap/wpa_supplicant/wpa_cli -i wlan2
>>
>> # 7) on node1, in wpa_cli, start the TDLS setup
>> tdls_setup <MAC2>
>>
>> # 8) verify that TDLS works
>> # - ping time will reduce (in my case it went from 1.6 ms to 1 ms)
>> # - ping time to the AP should remain the same
>> # - node2's MAC will appear in ath9k_htc debugfs
>> ls /sys/kernel/debug/ieee80211/phy1/netdev:wlan2/stations
>> # - look inside the debugfs folder for more details
>>
>> # 9) stress test
>> ping -f $IP2
>>
>> # 10) disable encryption in the AP and repeat the same with the 
>> "open" config file
>>
>> # pitfalls and notes
>> - APs could interfere in various ways with the test. Some models could
>> set the TDLS prohibit flag. Others (like my Huawei E587) could
>> work at the beginning but deauthenticate the nodes after 20-30 seconds.
>> - I didn't check 802.11n
>> - I have used the stock 3.16.0 kernel as the base, since
>> wireless-testing with tag master-2014-08-11 gave kernel panic
>> during wlan scan, even without my patch (but this is for another mail)
>> - use wpa_passphrase to generate the wpa_supplicant WPA2 config file
>>
>> Csaba
>
>
> Thank you,
> i'll try to reproduce it. Is it ok if i copy/past your description to
> ath9k_htc wiki?

Of course. Maybe you could put a link to the mail thread to help out 
Google :)
Feel free to update/modify it as well.

Csaba