Leave minimal sepolicy for microdroid
Steps taken:
1) Grab remaining types in contexts files.
2) Leave such types and remove all other types.
3) Set attributes, according to system/etc/selinux/plat_sepolicy.cil.
4) Repeat booting and adding missing types, rules, and attributes.
5) Organize types and allow rules.
Bug: 191131624
Test: atest MicrodroidHostTestCases
Change-Id: I1302701f67e61795474c667e8e6094d67912eea0
diff --git a/microdroid/sepolicy/system/private/servicemanager.te b/microdroid/sepolicy/system/private/servicemanager.te
index 6294452..8ff964f 100644
--- a/microdroid/sepolicy/system/private/servicemanager.te
+++ b/microdroid/sepolicy/system/private/servicemanager.te
@@ -2,6 +2,22 @@
init_daemon_domain(servicemanager)
-read_runtime_log_tags(servicemanager)
+selinux_check_access(servicemanager)
-set_prop(servicemanager, ctl_interface_start_prop)
+# Note that we do not use the binder_* macros here.
+# servicemanager is unique in that it only provides
+# name service (aka context manager) for Binder.
+# As such, it only ever receives and transfers other references
+# created by other domains. It never passes its own references
+# or initiates a Binder IPC.
+allow servicemanager self:binder set_context_mgr;
+allow servicemanager {
+ domain
+ -init
+ -vendor_init
+ -hwservicemanager
+}:binder transfer;
+
+allow servicemanager service_contexts_file:file r_file_perms;
+
+allow servicemanager vendor_service_contexts_file:file r_file_perms;