tree cdf7df10096b0fd3919578a988810eb52c4a3611
parent 90f783f3ca34134298c6220b9223da08319804b3
author Kelvin Zhang <zhangkelvin@google.com> 1621026950 -0400
committer Kelvin Zhang <zhangkelvin@google.com> 1621283100 -0400

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

Change-Id: Icffe8097521c511e151af023a443ccbb4b59e22c