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

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Message-Id: <20070711.135646.115909857.davem@davemloft.net>
Date:	Wed, 11 Jul 2007 13:56:46 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rdenis@...phalempin.com
Cc:	dlstevens@...ibm.com, vladislav.yasevich@...com,
	netdev@...r.kernel.org, yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH] IPv6: optionaly validate RAs on raw sockets

From: Rémi_Denis-Courmont <rdenis@...phalempin.com>
Date: Wed, 11 Jul 2007 19:19:11 +0300

> 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...

We already have cases like that with network device firmware that
has to be loaded in from the filesystem in userspace, and the
answer is to use a properly populated initrd.

Same goes for things like this.

That's the fact of life these days, like it or not.

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