Cherry-pick: mount-encrypted: explicitly use uint64_t for sizes
On very large HDDs, the sector count was wrapping around. Switch most
calculations to bytes using uint64_t, and use BLKGETSIZE64 for checking
the loopback device size.
BUG=chrome-os-partner:12705
TEST=parrot build, manual testing
STATUS=Fixed
Change-Id: I61fed0d498e04f0b224645883929288362e44302
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/31073
Reviewed-by: Elly Jones <ellyjones@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/31155
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Gaurav Shah <gauravsh@chromium.org>
3 files changed
