commit eaadc9d4266c2c20274d9d4f4a8ad55c48e155f5
author Eric Biggers <ebiggers@google.com> Fri Sep 13 10:54:53 2019 -0700
committer Eric Biggers <ebiggers@google.com> Mon Sep 30 10:27:38 2019 -0700
tree 99c31de8747ba370c06f1bcdd3511f29ce57dc6a
parent d964376a927a5210f7bb7e80ca738b05b65b8d87

init/fscrypt_init_extensions: support setting v2 encryption policies

Support setting v2 encryption policies on init-created directories.  The
policy version to set is gotten from a new field in
/data/unencrypted/mode, which is the file that's used to pass the
encryption options from vold to init.

Also don't bother falling back to defaults if fields are missing from
this file, since it's re-written on every boot by vold.

Bug: 140500999
Test: tested as series; see If64028d8580584b2c33c614cabd5d6b93657f608
Change-Id: Ia9c5d4b80199686799e3ac80de78a50ed3bdabf4