Add microdroid specific sepolicy
Microdroid will have a separate sepolicy, apart from the core policy.
This is the first step; For now it's a simple copy of system/sepolicy.
For the future work, it will be stripped.
Bug: 189165759
Test: boot microdroid and see selinux enforced
Change-Id: I2fee39f7231560b49c93bd5e8d0feeffada40938
diff --git a/microdroid/sepolicy/system/public/mediadrmserver.te b/microdroid/sepolicy/system/public/mediadrmserver.te
new file mode 100644
index 0000000..a52295e
--- /dev/null
+++ b/microdroid/sepolicy/system/public/mediadrmserver.te
@@ -0,0 +1,33 @@
+# mediadrmserver - mediadrm daemon
+type mediadrmserver, domain;
+type mediadrmserver_exec, system_file_type, exec_type, file_type;
+
+typeattribute mediadrmserver mlstrustedsubject;
+
+net_domain(mediadrmserver)
+binder_use(mediadrmserver)
+binder_call(mediadrmserver, binderservicedomain)
+binder_call(mediadrmserver, appdomain)
+binder_service(mediadrmserver)
+hal_client_domain(mediadrmserver, hal_drm)
+
+add_service(mediadrmserver, mediadrmserver_service)
+allow mediadrmserver mediaserver_service:service_manager find;
+allow mediadrmserver mediametrics_service:service_manager find;
+allow mediadrmserver processinfo_service:service_manager find;
+allow mediadrmserver surfaceflinger_service:service_manager find;
+allow mediadrmserver system_file:dir r_dir_perms;
+
+# TODO(b/80317992): remove
+binder_call(mediadrmserver, hal_omx_server)
+
+###
+### neverallow rules
+###
+
+# mediadrmserver should never execute any executable without a
+# domain transition
+neverallow mediadrmserver { file_type fs_type }:file execute_no_trans;
+
+# do not allow privileged socket ioctl commands
+neverallowxperm mediadrmserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;