Re: [PATCH] TCP: add option for silent port knocking with integrity protection

[Hannes Frederic Sowa]

On Thu, Dec 12, 2013 at 06:34:24AM -0800, Eric Dumazet wrote:
> With various proposals (like TCP minion), maybe its time to be able to
> implement part of TCP stack in user land (Keep the mux inside the
> kernel, and forward raw incoming packets to user land where all the
> crazy things can be done without kernel patching.)

Maybe this knocking scheme is implementable with a socket filter and we could
add a switch to tweak drop behaviour.

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