netdev - Re: [PATCH] IPv6: optionaly validate RAs on raw sockets

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Message-ID: <46950A44.2040808@hp.com>
Date:	Wed, 11 Jul 2007 12:50:12 -0400
From:	Vlad Yasevich <vladislav.yasevich@...com>
To:	Rémi Denis-Courmont <rdenis@...phalempin.com>
Cc:	David Stevens <dlstevens@...ibm.com>, davem@...emloft.net,
	netdev@...r.kernel.org,
	YOSHIFUJI Hideaki / ???? <yoshfuji@...ux-ipv6.org>
Subject: Re: [PATCH] IPv6: optionaly validate RAs on raw sockets

Rémi Denis-Courmont wrote:
> Le mercredi 11 juillet 2007, David Stevens a écrit :
>>         That sounds like a good idea to me (FWIW),
>> though I also still think a simple raw-socket
>> application would do it just fine, possibly with
>> no kernel modification at all.
>>         But since the kernel wouldn't be maintaining
>> the DNS info, which was my real objection to the
>> original version,  netlink would work well too.
> 
> One remaining corner case is NFS/IPv6 root, whereby userland won't have 
> a chance to start before the network, and hence may miss the solicited 
> RA. Or would it? By default, the next unsolicited RA can be anytime 
> from now to after 10 minutes, so that's not sufficient. I wouldn't 
> personnaly care, but...
> 

You've got the same issue with the socket option approach.

-vlad
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