tree 6003da94d6b463b32981b0d74b02658ac8e24268
parent f89067ab97c964cad317045ccbfff173c8a4cb72
author Tianjie Xu <xunchang@google.com> 1536954722 -0700
committer Tianjie Xu <xunchang@google.com> 1538696577 -0700

Compare the fingerprint before reading the partition

The update_verifier now compares the fingerprint of a partition before
performing the blocks read. If the fingerprint of the current system property
mismatches the one embedded in the care_map, verification of this partition
will be skipped. This is useful for the possible system only updates in the
future.

Bug: 114778109
Test: unit tests pass
Change-Id: Iea309148a05109b5810dfb533d94260d77ab8540