InputTracer: Adjust traced event sensitivity based on allow-list
An allow-list of packages will be defined in the perfetto config for
input traces. We can only allow an event to traced completely (i.e.
treated as a non-sensitive event) if _all_ of the UIDs that the event is
targeting are allow-listed for the trace.
In each trace instace, we maintain a cache of whether UIDs seen so far
are allow-listed. Since the allow-list is specified through a list of
package names, we must query PackageManager through the InputDispatcher
policy to look up the packages that correspond to each UID that we see.
Bug: 210460522
Test: manual with perfetto
Change-Id: I9c19a5ed941ebc239dccc0363cc6553733e16afd
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 62c2b02..91a3e3f 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -163,6 +163,9 @@
virtual void notifyDeviceInteraction(DeviceId deviceId, nsecs_t timestamp,
const std::set<gui::Uid>& uids) = 0;
+ /* Get the UID associated with the given package. */
+ virtual gui::Uid getPackageUid(std::string package) = 0;
+
private:
// Additional key latency in case a connection is still processing some motion events.
// This will help with the case when a user touched a button that opens a new window,