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

[Oleksij Rempel <linux@rempel-privat.de>]

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?

-- 
Regards,
Oleksij

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