1. Use mrc_metadata structure with new fields for header checksum and
data checksum.
2. Use region file metadata to ensure there is only one metadata block
present and only one slot in recovery MRC cache. Use the offset and size
based on values in metadata block.
BUG=chrome-os-partner:61306
BRANCH=None
TEST=Verified that recovery MRC cache is verified using futility.
Change-Id: I68b2d75ea70fdaef6c87cdaa6ce97656e8a8bddc
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/424213
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This functionality allows factory to ensure that the recovery MRC cache
trained during finalization has the right signature and the checksum on
the data can be verified.
BUG=chrome-os-partner:59661
BRANCH=None
TEST=Verified checksum on recovery mrc cache.
Change-Id: Ic5bd9910b4542037ad86f6fb7a7d83b97be5c792
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/409680
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
