[PATCH v3 4/9] KEYS: Updated IMA policy functions for handling key measurement

[Mimi Zohar]

This patch adds support for "keyring=".  The patch title should
reflect it.

On Wed, 2019-10-30 at 18:19 -0700, Lakshmi Ramasubramanian wrote:
> Information regarding what keyrings need to be measured is missing.
> 
> A new field in the IMA policy, namely, keyrings is added to
> convey what keyrings need to be measured.
> 
> This patch updates the IMA function to retrieve keyrings from the policy.

Defining a new policy option should be separate from modifying
functions.

Mimi