DO NOT MERGE Fake 29.0 sepolicy prebuilts
I took current AOSP policy as base, then removed sepolicy so that the
set of type and attributes was a subset of types and attributes in Q
sepolicy, with exception of those that have not yet been cleand up in
current AOSP:
mediaswcodec_server
netd_socket
mediaextractor_update_service
thermalserviced
thermalserviced_exec
Bug: 133196056
Test: n/a
Change-Id: I2cbe749777684146114c89e1e6fc3f07400c0ae5
diff --git a/prebuilts/api/29.0/public/performanced.te b/prebuilts/api/29.0/public/performanced.te
new file mode 100644
index 0000000..7dcb5ea
--- /dev/null
+++ b/prebuilts/api/29.0/public/performanced.te
@@ -0,0 +1,30 @@
+# performanced
+type performanced, domain, mlstrustedsubject;
+type performanced_exec, system_file_type, exec_type, file_type;
+
+# Needed to check for app permissions.
+binder_use(performanced)
+binder_call(performanced, system_server)
+allow performanced permission_service:service_manager find;
+
+pdx_server(performanced, performance_client)
+
+# TODO: use file caps to obtain sys_nice instead of setuid / setgid.
+allow performanced self:global_capability_class_set { setuid setgid sys_nice };
+
+# Access /proc to validate we're only affecting threads in the same thread group.
+# Performanced also shields unbound kernel threads. It scans every task in the
+# root cpu set, but only affects the kernel threads.
+r_dir_file(performanced, { appdomain bufferhubd kernel surfaceflinger })
+dontaudit performanced domain:dir read;
+allow performanced { appdomain bufferhubd kernel surfaceflinger }:process setsched;
+
+# These /proc accesses only show up in permissive mode but they
+# generate a lot of noise in the log.
+userdebug_or_eng(`
+ dontaudit performanced domain:dir open;
+ dontaudit performanced domain:file { open read getattr };
+')
+
+# Access /dev/cpuset/cpuset.cpus
+r_dir_file(performanced, cgroup)