sepolicy: add version_policy tool and version non-platform policy.
In order to support platform changes without simultaneous updates from
non-platform components, the platform and non-platform policies must be
split. In order to provide a guarantee that policy written for
non-platform objects continues to provide the same access, all types
exposed to non-platform policy are versioned by converting them and the
policy using them into attributes.
This change performs that split, the subsequent versioning and also
generates a mapping file to glue the different policy components
together.
Test: Device boots and runs.
Bug: 31369363
Change-Id: Ibfd3eb077bd9b8e2ff3b2e6a0ca87e44d78b1317
diff --git a/private/ephemeral_app.te b/private/ephemeral_app.te
index 939737b..3375bc9 100644
--- a/private/ephemeral_app.te
+++ b/private/ephemeral_app.te
@@ -3,3 +3,9 @@
# Define and allow access to our own type for ashmem regions.
# Label ashmem objects with our own unique type.
tmpfs_domain(ephemeral_app)
+# TODO: deal with tmpfs_domain pub/priv split properly
+# Map with PROT_EXEC.
+allow ephemeral_app ephemeral_app_tmpfs:file execute;
+
+# Read system properties managed by zygote.
+allow ephemeral_app zygote_tmpfs:file read;