WIP: apparmor: Implement keyring permissions checking

This is a work in progress. There's no permissions checking or auditing
yet. The encoding for AppArmor key rules needs to be determined in order
to implement permissions checking. Prior to that, AppArmor policy syntax
for key rules needs to be designed/reviewed.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
4 files changed