Reuse error mapping logic for key operation metrics
Define SerializedError wire type for convenience and type safety. It
does not change the rules of how errors are downcasted to an i32.
Change operation outcome errors from Keymint ErrorCode to
SerializedError. This has an intended effect of binder errors being
reported to metrics as ResponseCode::SYSTEM_ERROR instead of
ErrorCode::UNKNOWN_ERROR.
Also update comments.
Bug: 298194325
Test: m
Change-Id: Ieff70245b776c38845c4f5142ab13d438ff79104
3 files changed