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Date: Tue, 14 Jun 2011 07:31:07 +0200
From: Andre Oppermann <andre@freebsd.org>
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To: Kip Macy <kip.macy@gmail.com>
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Cc: Mikolaj Golub <trociny@freebsd.org>, freebsd-net@freebsd.org
Subject: Re: Automatic receive buffer sizing works only for connections in
 ESTABLISHED state
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On 13.06.2011 18:47, Kip Macy wrote:
> On Mon, Jun 13, 2011 at 4:58 PM, Mikolaj Golub<trociny@freebsd.org>  wrote:
>> Hi,
>>
>> Automatic receive buffer sizing works only for connections in ESTABLISHED
>> state. In tcp_input() auto resizing code is under "if (tp->t_state ==
>> TCPS_ESTABLISHED&&  ...)" branch.
>>
>> This is unfortunate for HAST, which uses one direction connections and
>> shutdown another direction, so the receiving socket is in FIN_WAIT_2 and auto
>> resizing does not work here.
>>
>> Is there some reason why it should be only for connections in ESTABLISHED
>> state or this should be considered as a bug?
>
> Andre wrote the socket buffer auto-sizing, so I am CC'ing him.

It certainly could be extended from == to >= ESTABLISHED for the mentioned
reason.

At the moment I'm still quite busy with other stuff.  However from July on
I've got plenty of time again for FreeBSD works.

-- 
Andre