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From: Michael Peddemors <michael@linuxmagic.com>
To: Jan Rekorajski <baggins@sith.mimuw.edu.pl>, Chris Wedgwood <cw@f00f.org>
Cc: "David S. Miller" <davem@redhat.com>,
	linux-kernel@vger.kernel.org, netdev@oss.sgi.com,
	waltje@uWalt.NL.Mugnet.ORG
Subject: Re: [UPDATE] zerocopy.. While working on ip.h stuff
Date: Mon, 26 Feb 2001 15:46:56 -0800	[thread overview]
Message-ID: <0102261546570H.02007@mistress> (raw)
In-Reply-To: <14998.2628.144784.585248@pizda.ninka.net> <20010225163836.A12173@metastasis.f00f.org> <20010225045420.B10281@sith.mimuw.edu.pl>
In-Reply-To: <20010225045420.B10281@sith.mimuw.edu.pl>

While doing some work on some ip options stuff, I have noticed a bunchof 
unused entries in linux/include/linux/ip.h

A few things.. why is ip.h not part of the linux/include/net rather than 
linux/include/linux hierachy?

Defined items that are not used anywhere in the source..
Can any of them be deleted now?
<see below>

Also, I was looking into some RFC 1812 stuff. (Thanks for nothing Dave :) and 
was looking at 4.2.2.6 where it mentions that a router MUST implement the End 
of Option List option..  Havent' figured out where that is implememented yet..

Also was trying to figure out some things. 
I want to create a new ip_option for use in some DOS protection experiments.
I have a whole 40 bytes (+/-) to share...  Now although I don't see anything 
explicitly prohibiting the use of unused IP Header option space, I know that 
it really was designed for use by the sending parties, and not routers in 
between.. Has anyone seen any RFC that explicitly says I MUST NOT?


IPTOS_PREC_NETCONTROL
IPTOS_PREC_FLASHOVERRIDE
IPTOS_PREC_FLASH
IPTOS_PREC_IMMEDIATE
IPTOS_PREC_PRIORITY
IPTOS_PREC_ROUTINE
IPOPT_RESERVED1
IPOPT_RESERVED2
IPOPT_OPTVAL
IPOPT_OLEN
IPOPT_MINOFF
MAX_IPOPTLEN
IPOPT_EOL



> diff -urN linux/include/net/ip.h linux.fixed/include/net/ip.h
--------------------------------------------------------
Michael Peddemors - Senior Consultant
Unix Administration - WebSite Hosting
Network Services - Programming
Wizard Internet Services http://www.wizard.ca
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  parent reply	other threads:[~2001-02-26 22:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-23  6:59 [UPDATE] zerocopy BETA 3 David S. Miller
2001-02-23 10:42 ` Jan Rekorajski
2001-02-25  3:38   ` Chris Wedgwood
2001-02-25  3:54     ` Jan Rekorajski
2001-02-26 23:25       ` [UPDATE] zerocopy.. While working on ip.h stuff David S. Miller
2001-02-26 23:47         ` Benjamin C.R. LaHaise
2001-02-27  0:05         ` David S. Miller
2001-02-27  0:11           ` Benjamin C.R. LaHaise
2001-02-27  3:41             ` Michael Peddemors
2001-02-27  3:24         ` Michael Peddemors
2001-02-26 23:46       ` Michael Peddemors [this message]
2001-02-26 23:23         ` Andi Kleen
2001-02-26  5:28   ` [UPDATE] zerocopy BETA 3 David S. Miller
     [not found] <2137.983232656@ISI.EDU>
2001-02-27  1:53 ` [UPDATE] zerocopy.. While working on ip.h stuff Michael Peddemors
2001-02-27  2:31   ` Craig Milo Rogers

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