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8 Commits

Author SHA1 Message Date
Gaurav Shah
0265882a34 Change VerifyFirmware() to take separate pointers to firmware verification header and firmware data. 
The firmware verification code no longer assumes that verification data and firmware data are contiguous and follow each other. Needed for EFI where the actual firmware must be stored in its own firmware volume.

BUG=1704
TEST=modified existing tests for the new API, and they still pass

Review URL: http://codereview.chromium.org/1578035
 2010-04-18 16:35:07 -07:00
Gaurav Shah
5411c7a9f0 combined patch for: 
http://codereview.chromium.org/1574005
http://codereview.chromium.org/1604001

Review URL: http://codereview.chromium.org/1585007
 2010-03-31 10:56:49 -07:00
David Garcia
21c3f7fef7 Revert "VBoot Reference: Refactor Part 2 - Crypto Libraries" 
This reverts commit e018a80a37aaa45681f45f5852f04d20aedd8b2d.

Review URL: http://codereview.chromium.org/1593002
 2010-03-31 09:04:15 -07:00
Gaurav Shah
d46c347018 VBoot Reference: Refactor Part 2 - Crypto Libraries 
Removing multiple top level includes - now padding.h, rsa.h and sha.h are used internally and cryptolib.h must be used instead for all modules that wish to use crypto functions.

I am trying to separate refactors involving code movement from one file to another, and the movement of files themselves into separate CLs so that it's clear what changed.

Review URL: http://codereview.chromium.org/1574005
 2010-03-30 23:08:10 -07:00
Gaurav Shah
e450be4ce4 Propagate use of uint64_t to more functions that may need to deal with arbitrary length data. 
This CL fixes some functions to use uint64_t that I missed the first time around. It ended up requiring some minor changes to how some of the helper functions work (StatefulMemcpy*()).

Also adds new tests to make sure that reference code can verify/process big firmware and kernel images.

BUG=670
TEST=Adds some new, old ones still pass.

Review URL: http://codereview.chromium.org/1519008
 2010-03-29 21:27:08 -07:00
Gaurav Shah
a82bf268b2 VBoot Reference: Add kernel rollback prevention and choosing logic. 
Also adds tests for kernel rollback prevention.

Review URL: http://codereview.chromium.org/1320010
 2010-03-26 10:38:08 -07:00
Gaurav Shah
3199eed3d3 Move test utility functions to a common place. 
Also removes the dev_mode flag from Firmware Image verification as key signature for the firmware should be checked whether or not dev mode is enabled.

BUG=670
TEST=All tests still pass.

Merge remote branch 'refs/remotes/origin/master' into fixtests

Fix tests, remove dev mode. Move common code.

Review URL: http://codereview.chromium.org/1280002
 2010-03-25 13:04:45 -07:00
Gaurav Shah
ce0cc30e55 VBoot Reference: Add version checking to for preventing rollbacks. 
This CL adds a new function VerifyFirmwareDriver_f() means to be a part of the RO firmware which determine which copy of the firmware to boot from. It is meant to ensure that a particular firmware is only booted if 1) it verifies successfully, 2) its version is newer or equal to current stored version. In addition, the driver function also updates the stored version if needed.

Currently I am using the TLCL API with stub calls, (in fact, most of the TPM interaction is done in rollback_index.c which implements the actual version query/update API) used by the firmware.

Review URL: http://codereview.chromium.org/1241002
 2010-03-24 13:48:55 -07:00