Re: [PATCH] mac80211: Parse IEEE80211_RADIOTAP_RATE on TX

On Mon, 2014-07-21 at 12:20 +0200, Johannes Berg wrote:

On Thu, 2014-07-10 at 14:27 +0200, Rostislav Lisovy wrote:

quoted

Add support for parsing radiotap field IEEE80211_RADIOTAP_RATE
for transmitted frames. Use the provided datarate value in
info->control.rates[] array so it will be used for transmission.

Signed-off-by: Rostislav Lisovy <redacted>
---
This feature is essential for Transmit Datarate Control (TDC)
in future implementation of IEEE 802.11-2012 "Wireless Access
for the Vehicular Environment" support.

It seems like an extremely bad idea to base your implementation of WAVE
on monitor mode with injection.

Why can't you add a proper datapath?

You are right. I was overthinking the per-packet datarate setting a
little bit.
If I am not mistaken it is not possible to say that this feature may be
useful as the general method for monitor-mode injection with datarate
until there is some user-space utility really using/needing it?

Best regards;
Rostislav