tree e2dabf59fc7e225a17c384c03620f89fef6929d6
parent f9494d172bb56c08d6859d8d51d38c682647f083
author Nathan Huckleberry <nhuck@google.com> 1680197267 +0000
committer Nathan Huckleberry <nhuck@google.com> 1685562681 +0000

Separate logic for user reset, remove, and init

Keystore2 super key handling is being refactored in preparation for
Unlocked-Only Storage.

This does not change the behavior of keystore2. It is a readability
change.

Currently, super_key.rs exposes one function for resetting, removing,
and initializing users:
- reset_or_init_user_and_get_user_state

This change breaks this function into smaller parts:
- reset_user
- init_user
- remove_user
- get_user_state

This simplifies the code in super_key.rs and allows it to act more like
a state machine.

Bug: 280502317
Bug: 277798192
Test: Wiped device. Setup user with PIN. Ensured unlock works. Remove
    PIN. Ensured unlock works. Added pin and biometric. Ensured unlock
    works.  Rebooted device. Ensured unlock works.
Change-Id: I4e27b41a76a8b45ca2bae6daabe51f2a985c2efe