Re: Hostapd de-auth connected clients

Re: Hostapd de-auth connected clients

[Arend Van Spriel]

+ linux-wireless

On 2-3-2017 10:28, ravin goyal wrote:
> Hi Arend
> 
> Thanks, I will certainly try with brcmfmac if you say so.
> Currently I am testing hostapd on orange pi zero board running debian
> jessie and its wlan driver is xradio_wlan and it is working fine.
> I don't know why raspbian and debian have introduced bcmdhd for WLAN
> in their distros.
> I have filed bug on raspbian but received on response yet.

Now it gets confusing. From what I found xradio_wlan is for some
Allwinner flavor based on ST/Ericsson chipset with sdio id 0020:2281.
That would not be a device that bcmdhd would try to bind to.

Regards,
Arend

> Regards
> Ravin
> 
> On 1 March 2017 at 18:59, Arend Van Spriel <arend.vanspriel@broadcom.com> wrote:
>> On 28-2-2017 23:28, Jouni Malinen wrote:
>>> On Tue, Feb 28, 2017 at 04:06:48PM +0530, ravin goyal wrote:
>>>> I am sharing link to recent debug log related to de-auth messages in
>>>> hostapd, I hope it might help to figure out what's really happening
>>>> and to know whether it is due to driver or hostapd.
>>>>
>>>> Please take a look at this.
>>>>
>>>> link to log file: https://clbin.com/0flGD
>>>
>>> It looks like number of the disconnections in the two logs are triggered
>>> by station inactivity check:
>>>
>>> 1488275056.529235: wlan0: Station 00:73:8d:43:87:2e has been inactive too long: 308 sec, max allowed: 300
>>> 1488275056.529389:   Polling STA
>>> 1488275056.529457: nl80211: send_mlme - da= 00:73:8d:43:87:2e noack=0 freq=0 no_cck=0 offchanok=0 wait_time=0 fc=0x248 (WLAN_FC_STYPE_NULLFUNC) nlmode=3
>>> 1488275056.529574: nl80211: Use bss->freq=2442
>>> 1488275056.529634: nl80211: CMD_FRAME freq=2442 wait=0 no_cck=0 no_ack=0 offchanok=0
>>> 1488275056.529711: CMD_FRAME - hexdump(len=24): 48 02 00 00 00 73 8d 43 87 2e 02 1a 11 f5 47 06 02 1a 11 f5 47 06 00 00
>>> 1488275056.530129: nl80211: Frame command failed: ret=-22 (Invalid argument) (freq=2442 wait=0)
>>> 1488275056.530231: nl80211_send_null_frame: Failed to send poll frame
>>> 1488275056.530295: ap_handle_timer: register ap_handle_timer timeout for 00:73:8d:43:87:2e (1 seconds - AP_DISASSOC_DELAY)
>>>
>>>
>>> This code should not have been triggered at all if the driver reported
>>> activity in the expected way, so I'm assuming the driver does not
>>> support that.. And then it does not support sending out the poll frame
>>> to check whether the STA is still there.
>>>
>>> You might be able to work around this by setting a significantly larger
>>> ap_max_inactivity value in hostapd.conf, but for a proper fix, someone
>>> more familiar with the particular driver would need to take a look at
>>> what's happening and why the driver does not indicate station activity.
>>
>> I would suggest trying brcmfmac instead of bcmdhd. The bcmdhd is
>> specifically for Android and verification is done on Android targets.
>> Not saying your problems will be gone, but at least you can ask me for help.
>>
>> Regards,
>> Arend

Re: Hostapd de-auth connected clients

[ravin goyal]

Hi, I think I need to mention the hardware specification
I was first trying on banana pi m2+ which has WLAN chip AP6212(ampak)
here is the link to it: http://linux-sunxi.org/Wifi#Ampak
I tried both raspbian and debian jessie on it both distros has
wireless driver bcmhd linked to the wifi chip.
Both these distros has flaws in its wireless driver when it comes to
run hostapd on it.

Then I tired on orange pi zero running debian jessie and its wifi
chipset is XR819 and wlan driver is xradio_wlan
http://linux-sunxi.org/Wifi#Allwinner

This driver seems to be working fine with hostapd so far.
I hope the confusion is clear now.

Regards,
Ravin

On 2 March 2017 at 18:07, Arend Van Spriel <arend.vanspriel@broadcom.com> wrote:
> + linux-wireless
>
> On 2-3-2017 10:28, ravin goyal wrote:
>> Hi Arend
>>
>> Thanks, I will certainly try with brcmfmac if you say so.
>> Currently I am testing hostapd on orange pi zero board running debian
>> jessie and its wlan driver is xradio_wlan and it is working fine.
>> I don't know why raspbian and debian have introduced bcmdhd for WLAN
>> in their distros.
>> I have filed bug on raspbian but received on response yet.
>
> Now it gets confusing. From what I found xradio_wlan is for some
> Allwinner flavor based on ST/Ericsson chipset with sdio id 0020:2281.
> That would not be a device that bcmdhd would try to bind to.
>
> Regards,
> Arend
>
>> Regards
>> Ravin
>>
>> On 1 March 2017 at 18:59, Arend Van Spriel <arend.vanspriel@broadcom.com> wrote:
>>> On 28-2-2017 23:28, Jouni Malinen wrote:
>>>> On Tue, Feb 28, 2017 at 04:06:48PM +0530, ravin goyal wrote:
>>>>> I am sharing link to recent debug log related to de-auth messages in
>>>>> hostapd, I hope it might help to figure out what's really happening
>>>>> and to know whether it is due to driver or hostapd.
>>>>>
>>>>> Please take a look at this.
>>>>>
>>>>> link to log file: https://clbin.com/0flGD
>>>>
>>>> It looks like number of the disconnections in the two logs are triggered
>>>> by station inactivity check:
>>>>
>>>> 1488275056.529235: wlan0: Station 00:73:8d:43:87:2e has been inactive too long: 308 sec, max allowed: 300
>>>> 1488275056.529389:   Polling STA
>>>> 1488275056.529457: nl80211: send_mlme - da= 00:73:8d:43:87:2e noack=0 freq=0 no_cck=0 offchanok=0 wait_time=0 fc=0x248 (WLAN_FC_STYPE_NULLFUNC) nlmode=3
>>>> 1488275056.529574: nl80211: Use bss->freq=2442
>>>> 1488275056.529634: nl80211: CMD_FRAME freq=2442 wait=0 no_cck=0 no_ack=0 offchanok=0
>>>> 1488275056.529711: CMD_FRAME - hexdump(len=24): 48 02 00 00 00 73 8d 43 87 2e 02 1a 11 f5 47 06 02 1a 11 f5 47 06 00 00
>>>> 1488275056.530129: nl80211: Frame command failed: ret=-22 (Invalid argument) (freq=2442 wait=0)
>>>> 1488275056.530231: nl80211_send_null_frame: Failed to send poll frame
>>>> 1488275056.530295: ap_handle_timer: register ap_handle_timer timeout for 00:73:8d:43:87:2e (1 seconds - AP_DISASSOC_DELAY)
>>>>
>>>>
>>>> This code should not have been triggered at all if the driver reported
>>>> activity in the expected way, so I'm assuming the driver does not
>>>> support that.. And then it does not support sending out the poll frame
>>>> to check whether the STA is still there.
>>>>
>>>> You might be able to work around this by setting a significantly larger
>>>> ap_max_inactivity value in hostapd.conf, but for a proper fix, someone
>>>> more familiar with the particular driver would need to take a look at
>>>> what's happening and why the driver does not indicate station activity.
>>>
>>> I would suggest trying brcmfmac instead of bcmdhd. The bcmdhd is
>>> specifically for Android and verification is done on Android targets.
>>> Not saying your problems will be gone, but at least you can ask me for help.
>>>
>>> Regards,
>>> Arend