Wireshark · Wireshark-dev: Re: [Wireshark-dev] Patch: Prepare for some cleanups of 802.11ad

[Richard Sharpe <realrichardsharpe@xxxxxxxxx>]

On Sat, Aug 22, 2015 at 12:09 PM, Richard Sharpe
<realrichardsharpe@xxxxxxxxx> wrote:
> On Sat, Aug 22, 2015 at 11:43 AM, Guy Harris <guy@xxxxxxxxxxxx> wrote:
>>
>> On Aug 22, 2015, at 7:46 AM, Richard Sharpe <realrichardsharpe@xxxxxxxxx> wrote:
>>
>>> As part of fixing some problems in the 802.11ad dissector that I am
>>> aware of
>>
>> Presumably you have 802.11ad captures of some sort.
>
> Yes.
>
>> If they have radiotap headers, do they have either an MCS field:
>>
>>         http://www.radiotap.org/defined-fields/MCS
>
> Yes.
>
>> which indicates 802.11n or a VHT field:
>>
>>         http://www.radiotap.org/defined-fields/VHT
>>
>> which indicates 802.11ac?  Is there any information in either of those fields that would be useful radio information for 802.11ad?
>
> The MCS field only contains the MCS index, but it is 0.
>
> However, the 802.11 radio information header claims that the PHY type
> is 802.11n, which is probably because the Radiotap dissector did not
> set it correctly.

Hmmm, looking at this again, I wonder if it should not contain an MCS
field, because the radiotap dissector thinks that mean
PHDR_802_11_PHY_11N.

I need to ask some questions.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)