Messages in this thread | | | Date | Wed, 3 Oct 2007 13:21:32 -0700 (PDT) | From | Casey Schaufler <> | Subject | Re: [PATCH] Version 4 (2.6.23-rc8-mm2) Smack: Simplified Mandatory Access Control Kernel |
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--- Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > Absolute paths in that kind of thing are _wrong_. You know where the > things > > are on your fs. You don't know if anything else will be visible, let alone > > whether it will be at the same place in all chroots or namespaces. And no, > > you _can't_ make sure that fs is visible only in one place. No fs can or > > has any business even trying. > > What I don't understand here is why we need the hacks when we already > support sufficient mount magic to give each login session its own > private /tmp ?
An embedded system that does not have user logins but that does have applications that require separation, perhaps a moble communication device with application download capability, is just one example where the smack symlink implementation provides the required function without requiring application support.
Casey Schaufler casey@schaufler-ca.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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