Find hal_foo_hwservice -> you are hal_foo_client.
Before, it was possible to access a hwservice without declaring
that you were a client.
This introduces the following macro:
hal_attribute_hwservice_client(hal_foo, hal_foo_hwservice)
which makes sure the above implication holds using a neverallow rule.
Bug: 80319537
Test: boot + sanity
Change-Id: Iededae68f14f0f3bd412c1205aa3b650a54d55c6
diff --git a/public/hal_fingerprint.te b/public/hal_fingerprint.te
index ebe0b0c..240f1dd 100644
--- a/public/hal_fingerprint.te
+++ b/public/hal_fingerprint.te
@@ -3,7 +3,7 @@
binder_call(hal_fingerprint_server, hal_fingerprint_client)
add_hwservice(hal_fingerprint_server, hal_fingerprint_hwservice)
-allow hal_fingerprint_client hal_fingerprint_hwservice:hwservice_manager find;
+hal_attribute_hwservice_client(hal_fingerprint, hal_fingerprint_hwservice)
# For memory allocation
allow hal_fingerprint ion_device:chr_file r_file_perms;