netdev - Re: [PATCH] tcp: add server ip to encrypt cookie in fast open

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Message-ID: <CADVnQynQZDzefMWX868c46i0RkuRig=6By1B70a9=2GWTkcDfA@mail.gmail.com>
Date:	Thu, 8 Aug 2013 20:48:28 -0400
From:	Neal Cardwell <ncardwell@...gle.com>
To:	Yuchung Cheng <ycheng@...gle.com>
Cc:	David Miller <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] tcp: add server ip to encrypt cookie in fast open

On Thu, Aug 8, 2013 at 5:06 PM, Yuchung Cheng <ycheng@...gle.com> wrote:
> Encrypt the cookie with both server and client IPv4 addresses,
> such that multi-homed server will grant different cookies
> based on both the source and destination IPs. No client change
> is needed since cookie is opaque to the client.
>
> Signed-off-by: Yuchung Cheng <ycheng@...gle.com>
> ---
>  include/net/tcp.h       |  3 ++-
>  net/ipv4/tcp_fastopen.c | 13 ++++++-------
>  net/ipv4/tcp_ipv4.c     | 10 +++++++---
>  3 files changed, 15 insertions(+), 11 deletions(-)

Acked-by: Neal Cardwell <ncardwell@...gle.com>
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