On 26 January 2015 at 10:49, Janusz Dziedzic <[email protected]> wrote:
> On 26 January 2015 at 10:25, Johannes Berg <[email protected]> wrote:
>> On Mon, 2015-01-26 at 10:19 +0100, Janusz Dziedzic wrote:
>>> On 26 January 2015 at 10:00, Johannes Berg <[email protected]> 
>>> wrote:
>>> > On Mon, 2015-01-26 at 10:37 +0200, Arik Nemtsov wrote:
>>> >
>>> >> >> Shouldn't you also set vht_oper->basic_mcs_set here? Of course if you
>>> >> >> have no use for it in IBSS I can add it later.
>>> >> >
>>> >> > Why would you want to require VHT rates?
>>> >>
>>> >> Are you sure it's required and no the other way around in this case?
>>> >> As in specifying which rates are not supported.
>>> >> Not sure it means the same thing as in the HT instance.
>>> >
>>> > Well, it does mean the same thing ("these rates are required") but it's
>>> > encoded in a way that you have to set it to all-ones (rather than
>>> > all-zeroes) to mean "no requirements", so in that sense you're right.
>>> >
>>>
>>> I already set this in the patch:
>>> +       vht_oper->basic_mcs_set = vht_cap->vht_mcs.rx_mcs_map;
>>
>> But do you really want to require the local capabilities as basic MCSes?
>>
> I am not sure. Will check spec and how we do that for an AP.
>
The Basic VHT-MCS and NSS Set field indicates the VHT-MCSs for each
number of spatial streams in VHT
PPDUs that are supported by all VHT STAs in the BSS (including IBSS and MBSS).

hostapd set this as: 0xfffc - 1 stream, MCS0-7 as a min Basic VHT MCS
rates - this seems to be secure.

BR
Janusz
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