This patch extends the vboot2 API by three callback functions that the
platform firmware may implement to offer hardware crypto engine support.
For now we only support this for hash algorithms, and we will only allow
it for firmware body hashes (not the keyblock or preamble which are too
small to matter execution-time-wise anyway). The API is similar to the
vb2api_*_hash() functions used to start body hashing in the first place,
but we still take this round trip through vboot to allow it to do
key/signature management and retain full control of the verification
process. We also add a new preamble flag to explicitly disable this
feature, so that we can later return to a solely software-based
verification path through a firmware update in case a hardware crypto
engine turns out to be insecure.
CQ-DEPEND=CL:236435
BRANCH=None
BUG=chrome-os-partner:32987
TEST='make runtests VBOOT2=1'. Manually booted on Pinky with and without
HW crypto support and with the preamble flag set to confirm expected
behavior. lib21/ parts untested except for compiling and new unit tests.
Change-Id: I17c7d02f392089875a5942a5aafcf6a657354863
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/236453
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Now that lib20 and lib21 are distinct, they can have overlapping
struct names. This will be cleaner in the long run, since vboot 2.0
(lib20) is just a temporary stepping stone to vboot 2.1 (lib21). It
would be a shame to need to carry around the overhead of that extra
digit forever.
No functional changes, just a lot of renaming.
BUG=chromium:423882
BRANCH=none
TEST=make runtests && VBOOT2=1 make runtests (works with/withoug VBOOT2 flag)
And compile firmware for veyron_pinky
Change-Id: I25f348fd31e32d08ca576836dfdd1278828765a1
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/233183
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
And associated unit tests.
And fix a memory overwrite in the old vb_api_tests.c, which apparently
didn't touch a critical piece of the shared work buffer, but was still
wrong. (This was a problem in the test, not in the code being
tested.)
BUG=chromium:423882
BRANCH=none
TEST=VBOOT2=1 make runtests
Change-Id: I322fb7e6bb5214b0adcf5d6d48a0cd238abba88e
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/229738
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This allows the api header to include it without pulling in the rest
of the vboot2 internal structs.
No functional changes; just moving a struct definition.
BUG=chromium:423882
BRANCH=none
TEST=VBOOT2=1 make runtests
Change-Id: Ife9408f9b597939a3cc85a10d534108e12f2d739
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/229793
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
And add a few hash tag types we'll be supporting soon.
No functional changes; just moving an enum from one header to another.
BUG=chromium:423882
BRANCH=none
TEST=VBOOT2=1 make runtests
Change-Id: I6f0fa54ee85fd857c4037856b81e2159e92f1ea9
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223532
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
I'm breaking the last chunk of vboot2 into smaller pieces as I add
tests. This has the api-level routines actually called by depthcharge.
BUG=chromium:370082
BRANCH=none
TEST=make clean && VBOOT2=1 COV=1 make
Change-Id: Ic7c082fc5faa0b874b2fa5a15ebda7135dcafe0b
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/200151
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
I'm breaking the last chunk of vboot2 into smaller pieces as I add
tests. This has a bunch of misc routines like the dev switch logic
and GBB header parsing.
BUG=chromium:370082
BRANCH=none
TEST=make clean && VBOOT2=1 COV=1 make
Change-Id: I0f67400d9b59ec21ed5cc155a9b774fd37eb559b
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/203374
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This is the second of several CLs adding a more memory- and
code-efficient firmware verification library.
BUG=chromium:370082
BRANCH=none
TEST=make clean && COV=1 make
Change-Id: I1dd571e7511bff18469707d5a2e90068e68e0d6f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/199841
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
