From owner-freebsd-net@FreeBSD.ORG  Mon Jan 10 10:01:34 2005
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Date: Mon, 10 Jan 2005 04:01:29 -0600 (CST)
From: Mike Silbersack <silby@silby.com>
To: Don Lewis <truckman@FreeBSD.org>
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 <20050110034422.C9716@odysseus.silby.com>
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cc: net@FreeBSD.org
Subject: Re: Slipping in the window update
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On Mon, 10 Jan 2005, Mike Silbersack wrote:

> We could do something there like
>
> if (th->th_seq != tp->irs) {
> 	goto dropafterack; /* Or however we handle these bad syns */
> } else {
> thflags &= ~TH_SYN;
> th->th_seq++;
> if (th->th_urp > 1)
> 	th->th_urp--;
> else
> 	thflags &= ~TH_URG;
> todrop--;
> }

Uh, I greatly oversimplified the changes that would be needed there, so 
that implementation would be totally wrong.  I'll go get some sleep and 
then think about the implementation...

Mike "Silby" Silbersack