From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: Eric Dumazet <eric.dumazet@gmail.com>,
Christian Grothoff <grothoff@in.tum.de>,
Jacob Appelbaum <jacob@appelbaum.net>,
Andi Kleen <andi@firstfloor.org>,
Stephen Hemminger <stephen@networkplumber.org>,
David Miller <davem@davemloft.net>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
knock@gnunet.org
Subject: Re: [PATCH] TCP: add option for silent port knocking with integrity protection
Date: Fri, 13 Dec 2013 04:07:11 +0100 [thread overview]
Message-ID: <20131213030711.GA30876@order.stressinduktion.org> (raw)
In-Reply-To: <20131212154637.GG4675@order.stressinduktion.org>
On Thu, Dec 12, 2013 at 04:46:37PM +0100, Hannes Frederic Sowa wrote:
> 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.
Just fyi, maybe it is useful. I haven't tested it:
For the sending side one could craft the handshake by hand (raw/packet
sockets) and splice in an already established socket via tcp connection
repair.
next prev parent reply other threads:[~2013-12-13 3:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-10 18:35 Christian Grothoff
2013-12-11 20:01 ` David Miller
2013-12-11 20:19 ` Christian Grothoff
2013-12-11 20:26 ` Stephen Hemminger
2013-12-11 20:39 ` Christian Grothoff
2013-12-11 21:25 ` Andi Kleen
2013-12-11 22:53 ` Christian Grothoff
2013-12-12 1:23 ` Andi Kleen
2013-12-12 10:19 ` Jacob Appelbaum
2013-12-12 11:43 ` Christian Grothoff
2013-12-12 12:23 ` Jacob Appelbaum
2013-12-12 14:34 ` Eric Dumazet
2013-12-12 15:07 ` Christian Grothoff
2013-12-12 15:33 ` Eric Dumazet
2013-12-12 15:46 ` Hannes Frederic Sowa
2013-12-13 3:07 ` Hannes Frederic Sowa [this message]
2014-08-19 19:36 ` Alexander Holler
2014-08-20 8:24 ` Hagen Paul Pfeifer
2014-08-20 9:07 ` Alexander Holler
2014-08-20 9:28 ` Hagen Paul Pfeifer
2014-08-20 9:47 ` Alexander Holler
2014-08-20 10:20 ` Alexander Holler
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