Use attributes for exclusive property owners
tests/sepolicy_tests.py has been checking whether the property owner
attributes are mutually exclusive. This is because current policy
language can't express the following snippet:
neverallow domain {
system_property_type && vendor_property_type
}:file no_rw_file_perms;
neverallow domain {
system_property_type && vendor_property_type
}:property_service set;
This uses technical_debt.cil to workaround this.
Bug: 171437654
Test: Try to compile a type having both system_property_type and
vendor_property_type
Change-Id: Ic65f2d00aa0f2fb7f5d78331b0a26e733fcd128e
diff --git a/private/attributes b/private/attributes
index 3d18d71..cf1c307 100644
--- a/private/attributes
+++ b/private/attributes
@@ -4,3 +4,8 @@
# to exempt them from recent mls changes. It must not be applied
# to any domain on newer system or vendor image.
attribute mlsvendorcompat;
+
+# Attributes for property types having both system_property_type
+# and vendor_property_type. Such types are ill-formed because
+# property owner attributes must be exclusive.
+attribute system_and_vendor_property_type;