tree 553f149bfef4b72404a7ced3c1e7a4687017d9dd
parent 0d75830053538103788952e437d6347f44d0b38b
author Pavel Grafov <pgrafov@google.com> 1534344331 +0100
committer Pavel Grafov <pgrafov@google.com> 1534428294 +0000

Use DPM's counter for invalid password attempts

Currently Keyguard uses separate counter for invalid password attempts
that is not persisted and is always initialized to zero after boot,
so if the user made several attempts and rebooted the device, the
device will show more allowed attempts before wipe than actually
available. The counter is also incorrectly reset to zero when
fingerprint is used successfully.

With this CL the same counter is used for that message and for actual
wipe triggering, it is persisted and is not reset upon reboot or
fingerprint authehtication.

Counting failed password attempts should be available in DevicePolicyManager
even without PackageManager.FEATURE_DEVICE_ADMIN.

Test: manual, tried using fingerprint and rebooting.
Bug: 112588257
Merged-In: I1f4012a95c6f6758885206f69e7ebe2c3704a567
Change-Id: I1f4012a95c6f6758885206f69e7ebe2c3704a567