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Monitor mode 'cook' flag meaning

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I've been looking through the different flags for monitor mode in iw.
Most of them are rather obvious (and well explained) but what is
exactly 'cooked mode'?

I looked up in Google and in the linux-wireless wiki (nothing in
there) and I only found explanations in 2 patches (most likely still
in the source code) which are still vague:
- A monitor interface in "cooked" mode will see all frames that
mac80211 has not used internally
- report frames after processing. Overrides all other flags.

Thinking about what the first one says, it doesn't seem any different
than just fcsfail. I don't even see when control or otherbss should be
needed since 'none' is already providing them.

Am I correct? Or is it related to transmitting frames? And in this case, how?

Thanks in advance,

Thomas



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