platform_Cryptohome, cryptohome.py: kill c-homed on dbus silence
Move platform_Cryptohome over to using the CryptohomeProxy and
ensure that any unreplied DBus call results in cryptohomed being
ABRT'd with the hope that we'll get a crash dump on daisy flake.
As we discover blocking operations, we can move them off the main
thread.
TEST=passes; kills -ABRT if cryptohomed gets a SIGSTOP during the test (as a proof of hang detection)
BUG=chromium:303677
Change-Id: Ia40b0120f4f7a918c8288bf65b5c251fb0671223
Reviewed-on: https://chromium-review.googlesource.com/178881
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Queue: Will Drewry <wad@chromium.org>
Tested-by: Will Drewry <wad@chromium.org>
2 files changed
