Re: [PATCH v4 13/16] fs-verity: support builtin file signatures

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On Thu, Jun 06, 2019 at 08:52:02AM -0700, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@xxxxxxxxxx>
> 
> To meet some users' needs, add optional support for having fs-verity
> handle a portion of the authentication policy in the kernel.  An
> ".fs-verity" keyring is created to which X.509 certificates can be
> added; then a sysctl 'fs.verity.require_signatures' can be set to cause
> the kernel to enforce that all fs-verity files contain a signature of
> their file measurement by a key in this keyring.

I think it might be a good idea to allow the require_signatures
setting to be set on a per-file system basis, via a mount option?  We
could plumb it in via a flag in fsverity_info, set by the file system.

Other than this feature request, looks good; you can add:

Reviewed-off-by: Theodore Ts'o <tytso@xxxxxxx>

						- Ted



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