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/private/incident.te b/microdroid/sepolicy/system/private/incident.te
new file mode 100644
index 0000000..db9ae86
--- /dev/null
+++ b/microdroid/sepolicy/system/private/incident.te
@@ -0,0 +1,37 @@
+typeattribute incident coredomain;
+
+type incident_exec, system_file_type, exec_type, file_type;
+
+# switch to incident domain for incident command
+domain_auto_trans(shell, incident_exec, incident)
+domain_auto_trans(dumpstate, incident_exec, incident)
+
+# allow incident access to stdout from its parent shell.
+allow incident shell:fd use;
+
+# allow incident to communicate with dumpstate, and write incident report to
+# /data/data/com.android.shell/files/bugreports/tmp_incident_report
+allow incident dumpstate:fd use;
+allow incident dumpstate:unix_stream_socket { read write };
+allow incident shell_data_file:file write;
+
+# allow incident be able to output data for CTS to fetch.
+allow incident devpts:chr_file { read write };
+
+# allow incident to communicate use, read and write over the adb
+# connection.
+allow incident adbd:fd use;
+allow incident adbd:unix_stream_socket { read write };
+
+# allow adbd to reap incident
+allow incident adbd:process { sigchld };
+
+# Allow the incident command to talk to the incidentd over the binder, and get
+# back the incident report data from a ParcelFileDescriptor.
+binder_use(incident)
+allow incident incident_service:service_manager find;
+binder_call(incident, incidentd)
+allow incident incidentd:fifo_file write;
+
+# only allow incident being called by shell or dumpstate
+neverallow { domain -su -shell -incident -dumpstate} incident_exec:file { execute execute_no_trans };