tree 9d371e32a721ab29ec0e1c860a46a1ea1dcf7b92
parent 48a7e7dd7b5c50249e6507499f014c9616221433
author Kelvin Zhang <zhangkelvin@google.com> 1621026950 -0400
committer Kelvin Zhang <zhangkelvin@google.com> 1621457882 +0000

Check SPL downgrade before install OTA in recovery

Applying an SPL downgrade package can cause boot failures
(/data failed to decrypt). Today's ota_from_target_files
tool already try to prevent this. But Packages generated
using older tools are still around.

Add check in recovery to prevent such OTA package from
installing.

Test: th
Test: Sideload an OTA with newer SPL, make sure check passes
Test; Sideload an OTA with older SPL, make sure check fails

Bug: 186581246
Bug: 188575410

cherry-picked from aosp/1708986
cherry-picked from commit: 33c62fc4b81b93b29c7a94fba20ab56d7f5f6bd7

Change-Id: Icffe8097521c511e151af023a443ccbb4b59e22c