Re: [PATCH 01/11] Security: Add hook to get full maclabel xattr name

On Thu, 28 Feb 2008, Casey Schaufler wrote:

> Easier may be pragmatic, but that does not make it right.
> I suggest, that in my opinion (there, is that sufficiently
> non-confrontational?) that Linux and the LSM are much better
> served by a general xattr protocol than by adding a single
> reccommended attribute.

An xattr protocol is overkill for conveying a MAC label over the network, and would still not provide the required semantics.

Please see prior discussion on this e.g.

http://marc.info/?l=linux-kernel&m=120424789929258&w=2

Note that RAs are already used to convey ACLs and all other system-managed metatdata. i.e. an extensible, appropriate infrastructure already exists in the NFSv4 protocol, and has been used successfully for similar purposes. We do not need to add a new, generalized protocol to NFSv4 for this, especially one which does not meet the requirements.

• James -- James Morris <jmorris@namei.org> -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html