From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Berg Subject: [RFC] 0-length PPDU reporting Date: Mon, 18 Jun 2018 16:37:50 +0200 Message-ID: <1529332670.3490.50.camel@sipsolutions.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Sender: radiotap-owner-sUITvd46vNxg9hUCZPvPmw@public.gmane.org List-Unsubscribe: To: radiotap-S783fYmB3Ccdnm+yROfE0A@public.gmane.org List-Id: radiotap@radiotap.org Hi, With HE in particular, but also previously, there are PPDUs that don't carry any MAC header, for example sounding frames. It seems useful to report these up, but they cause wireshark to display an error since it's expecting to be able to decode the remainder of the data after radiotap as an 802.11 frame. To fix that, and to be able to show the type of PPDU, I think we should add a new field, that contains just a 16-bit value (or 8? or even 32 since we often need more alignment anyway?) indicating the type of 0- length PPDU. Does anyone happen to have a more comprehensive list of PPDUs that are like this? johannes