linux-kernel - Re: [PATCH v1 3/5] ima: limit including fs-verity's file digest in measurement list

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Message-ID: <YalHCz/FzQXKHx4u@sol.localdomain>
Date:   Thu, 2 Dec 2021 14:22:03 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     Mimi Zohar <zohar@...ux.ibm.com>
Cc:     linux-integrity@...r.kernel.org, linux-fscrypt@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/5] ima: limit including fs-verity's file digest in
 measurement list

On Thu, Dec 02, 2021 at 04:55:05PM -0500, Mimi Zohar wrote:
> Without the file signature included in the IMA measurement list, the type
> of file digest is unclear.  Set up the plumbing to limit including
> fs-verity's file digest in the IMA measurement list based on whether the
> template name is ima-sig.  In the future, this could be relaxed to include
> any template format that includes the file signature.
> 

Does it make sense to tie IMA's fs-verity support to files having signatures?
What about IMA audit mode?  I thought that is just about collecting hashes, and
has nothing to do with signatures.

- Eric