netdev - Re: [PATCH iproute2] ss: add fastopen support

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Message-ID: <20130503204218.5a7d537f@nehalam.linuxnetplumber.net>
Date:	Fri, 3 May 2013 20:42:18 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev <netdev@...r.kernel.org>, Yuchung Cheng <ycheng@...gle.com>
Subject: Re: [PATCH iproute2] ss: add fastopen support

On Fri, 29 Mar 2013 13:51:57 -0700
Eric Dumazet <eric.dumazet@...il.com> wrote:

> From: Eric Dumazet <edumazet@...gle.com>
> 
> ss -i can output "fastopen" attribute if socket used Fast Open
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Yuchung Cheng <ycheng@...gle.com>

Ok, but the header stuff needs work.

The headers from iproute2 come from the kernel sanitized headers (ie make headers_install)
The only definition of TCPI_OPT_ECN_SEEN in those headers is in <linux/tcp.h>
I will tweak the ss to use linux/tcp.h

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