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5221d127e1
This patch introduces a delay between accepted cr50 firmware upload
attempts. The next attempt to write into the same or lower address in
flash would be accepted no sooner than in 60 seconds after the
previous attempt.
This would prevent a rogue user from wearing the flash by repeated
uploads to the same address.
This limitation is not imposed by dev images (those compiled with
CR50_DEV=1).
BRANCH=none
BUG=chrome-os-partner:63098
TEST=verified that attempts to update soon after the previous update
result in the following error message issued by usb_updater:
sending 0x2d8b8 bytes to 0x4000
Error: status 0x9
Modified usb_updater to send one random pdu twice. Observed the
same error message.
Change-Id: Idca55ad091d09daaddd0a4cad5b1f871af1ede93
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/445496
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This directory is for experiments only. It is not built automatically, required, supported, guaranteed to work, or necessarily well-documented. The contents may change without warning at any time.