[PATCH v2 06/15] ima: add parser of digest lists metadata

Hi Serge,

On Fri, 2017-11-17 at 22:20 -0600, Serge E. Hallyn wrote:

On Tue, Nov 07, 2017 at 11:37:01AM +0100, Roberto Sassu wrote:

quoted

from a predefined position (/etc/ima/digest_lists/metadata), when rootfs
becomes available. Digest lists must be loaded before IMA appraisal is in
enforcing mode.

I'm sure there's a good reason for it, but this seems weird to me.
Why read it from a file on disk instead of accepting it through say
a securityfile write?

Assuming that the concept of a white list is something we want to
support, then at minimum the list needs to be signed and verified.
Instead of defining a new Kconfig pathname option, a securityfs file
could read it, like the IMA policy.

Mimi


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