Commit Graph

2 Commits

Author SHA1 Message Date
Gaurav Shah
b69a6bbfe7 Don't use hardcoded offsets for parsing.
Forgot to propagate the use of area_offset= pattern for ouput parsing to the unpacking script.

BUG=none
TEST=Tested by running on a firmware image with flashmap enabled. Correctly parsed the section offsets and sizes and output them to files.

Review URL: http://codereview.chromium.org/3050019
2010-07-27 11:45:07 -07:00
Gaurav Shah
aa22a5dea5 Add script for re-signing final firmware images with the correct keys.
Also add a script for splitting a firmware image into component firmware data, vblocks and the GBB.

Note: The script uses fmap_decode, a utility to parse flashmap of a firmware image, and a part of the flashmap project:
http://code.google.com/p/flashmap/

BUG=3496
TEST=Tested with newer builds of firmware images with flashmaps enabled. Steps to verify:

1) Use script to re-sign an existing image with a new set of keys.
2) Use unpack_firmwarefd.sh to get individual firmware data and vblocks.
3) Use vbutil_firmware with the new keys. Verification should succeed with
   the newer keys but fail with the older ones.

Review URL: http://codereview.chromium.org/3026018
2010-07-27 10:52:07 -07:00