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From: Simon Barber <simon-vp0mx6+5gkqFX2APIN6yfw@public.gmane.org>
To: Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
Cc: radiotap-S783fYmB3Ccdnm+yROfE0A@public.gmane.org
Subject: Re: [RFC] 0-length PPDU reporting
Date: Mon, 18 Jun 2018 09:05:36 -0700
Message-ID: <00986C20-9443-40FC-9A7E-DE636A743951@superduper.net> (raw)
In-Reply-To: <1529332670.3490.50.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>

Some chipsets will also report particular types of noise as a special PPDU - used for radar detection - it might be nice to allow these as well.

Simon


> On Jun 18, 2018, at 7:37 AM, Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
> 
> 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

  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-18 14:37 Johannes Berg
     [not found] ` <1529332670.3490.50.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2018-06-18 16:05   ` Simon Barber [this message]
     [not found]     ` <00986C20-9443-40FC-9A7E-DE636A743951-vp0mx6+5gkqFX2APIN6yfw@public.gmane.org>
2018-06-18 19:20       ` Johannes Berg
     [not found]         ` <1529349637.3092.8.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2018-06-19 21:20           ` Guy Harris
     [not found]             ` <3028EC8F-6CFD-4F52-8349-D49B1F37AC22-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org>
2018-06-19 22:50               ` Guy Harris
     [not found]                 ` <BC6DCA08-4049-4B7A-A7C0-9FC545173FE5-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org>
2018-06-29 10:49                   ` Johannes Berg
2018-07-02 14:33   ` Johannes Berg
     [not found]     ` <1530542000.3117.4.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2018-07-03 12:13       ` Johannes Berg
2018-07-09  8:30   ` [RFA] 0-length PSDU reporting Johannes Berg
     [not found]     ` <1531125042.3298.5.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2018-08-09  1:53       ` Guy Harris
     [not found]         ` <AEBBAD8F-A779-4E0A-B40D-659D55DFE847-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org>
2018-08-13 10:35           ` Johannes Berg
     [not found]             ` <1534156537.3093.7.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2018-08-14  8:30               ` Johannes Berg
2018-09-04 12:10   ` [ADOPTION] " Johannes Berg

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