netdev - Re: [PATCH] RAW6: Do not allow set IPV6

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Date:	Thu, 24 Apr 2008 21:31:10 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	ellre923@...il.com, wangchen@...fujitsu.com, netdev@...r.kernel.org
Subject: Re: [PATCH] RAW6: Do not allow set IPV6_CHECKSUM for ICMPv6 socket

From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@...ux-ipv6.org>
Date: Thu, 24 Apr 2008 21:19:53 +0900 (JST)

> In article <20080424.034845.137470754.davem@...emloft.net> (at Thu, 24 Apr 2008 03:48:45 -0700 (PDT)), David Miller <davem@...emloft.net> says:
> 
> > From: "chen wang" <ellre923@...il.com>
> > Date: Sun, 20 Apr 2008 18:42:14 +0800
> > 
> > > 2008/4/20, YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>:
> > > > RFC3542 tells that IPV6_CHECKSUM socket option in the IPPROTO_IPV6
> > > 
> > > 
> > > 
> > >              ^^^^^^^^^^^^^^^^^^^
> > > Where in RFC3542 says that "only IPPROTO_IPV6 level" is not allowed to be
> > > set
> > > IPV6_CHECKSUM option on ICMPv6 socket?
> > 
> > Yoshifuji-san, please address this question.
> > 
> > I haven't applied this patch, and I won't until this is resolved
> > and discussed.
> 
> RFC3542 discusses about IPPROTO_IPV6 level IPV6_CHECKSUM socket option only.
> IPPROTO_RAW level IPV6_CHECKSUM socket option is undocumented Linux
> extension.  So, we are free to choose allowing setting that option on
> ICMPv6 socket as we have been doing.

Thank you for this clarification.

I've applied this patch and I'll queue it up for -stable as well.

Thanks again.
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