Calculate vbmetadigest of inactive slot
We want to improve the security of the keystore encryption key for resume
on reboot. One AI is to create the key with the vbmeta digest of the
next slot to boot into. After reboot, the decryption will fail if
ro.boot.vbmeta.digest of the new slot doesn't match the calculated value
before reboot.
Since update_engine manages the slot switch, let it calculate the digest
as well.
Bug: 177625570
Test: do a update, check that the sysprop is set.
Change-Id: I74b20fca72f6946d980b93d76990f1c8b8f246a9
diff --git a/aosp/hardware_android.h b/aosp/hardware_android.h
index 5ffd7c5..78f056e 100644
--- a/aosp/hardware_android.h
+++ b/aosp/hardware_android.h
@@ -58,6 +58,7 @@
bool GetFirstActiveOmahaPingSent() const override;
bool SetFirstActiveOmahaPingSent() override;
void SetWarmReset(bool warm_reset) override;
+ void SetVbmetaDigestForInactiveSlot(bool reset) override;
[[nodiscard]] std::string GetVersionForLogging(
const std::string& partition_name) const override;
[[nodiscard]] ErrorCode IsPartitionUpdateValid(