Minimize public policy
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.
Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
<(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
diff --git a/private/hwservice.te b/private/hwservice.te
index b7ba4d7..1a56eb7 100644
--- a/private/hwservice.te
+++ b/private/hwservice.te
@@ -1 +1,10 @@
type hal_lazy_test_hwservice, hwservice_manager_type, protected_hwservice;
+
+###
+### Neverallow rules
+###
+
+# hwservicemanager handles registering or looking up named services.
+# It does not make sense to register or lookup something which is not a
+# hwservice. Trigger a compile error if this occurs.
+neverallow domain ~hwservice_manager_type:hwservice_manager { add find };