On Sat, Jul 30, 2005 at 11:44:55PM -0700, David S. Miller wrote:
> 
> This bounds the pollution a remote entity could cause to the
> number of hash chains we have, and no greater.

Yes that sounds like a good idea.

> I wish I could come up with a sane way to use the inetpeer cache to
> store this info.  Unfortunately we need to key on address _and_ ID.

However, this is even better :) Except that I'm confused by what you
said here that we need to key on the ID.  Why do we need to key on
the ID? I would've thought that the saddr is sufficient.

> What's more, even if inetpeer could be made to work we would need to
> think about inetpeer cache pollution issues similar to the ipc ones we
> are trying to discuss here.  I actually think inetpeer would be ok in
> this regard due to it's "unused list" scheme, but we'd need to double-
> check just to make sure.

Yep you're absolutely right there.

The only reservation I have is the ability of an attacker to throw
entries out of the inetpeer cache.  But I suppose they can do that
anyway through sending spoofed ICMP echo requests.

Cheers,
-- 
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