image_signing: Verify cr50 signing manifest compliance
When signing Cr50 images, Board ID flags and major version number
fields of the manifest must follow the following convention:
- even major version numbers indicate pre-pvt branch, Board ID flag
bit 0x10 must be set;
- odd major version numbers indicate mp branch, Board ID flag bit
0x10000 must be set;
BRANCH=none
BUG=b:74100307
TEST=extracted pre-pvt branch produced Cr50 tarball into /tmp/cr50.cp,
and ran the following command:
scripts/image_signing/sign_cr50_firmware.sh /tmp/cr50.cp tests/devkeys \
signed
observed successful completion. Modified
/tmp/cr50.cp/ec_RW-manifest-prod.json to set major version number
to 3 instead of 4 and tried again, got the following error, as
expected:
sign_cr50_firmware.sh: ERROR : Inconsistent manifest \
/tmp/cr50.cp/ec_RW-manifest-prod.json: major = "3", board_id_flags = "16"
Change-Id: Ic123df4396d7d497347de40a5ff448940c0b1982
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1321410
Reviewed-by: David Riley <davidriley@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed
