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Commit 8564347b authored by Achim Thesmann's avatar Achim Thesmann
Browse files

Log if ApplicationThread is used from Non-System 

Bug: 317346668
Test: atest ActivityThreadTest BackgroundActivityLaunchTest
Flag: EXEMPT logging only
Change-Id: I7508b4e710f07a884ee18d5d01709b91e2ef0558
parent afaaf340

core/java/android/app/ActivityThread.java

+34 −0
Original line number Diff line number Diff line
@@ -298,6 +298,7 @@ import java.util.TimeZone; 
import java.util.concurrent.Executor;

import java.util.concurrent.atomic.AtomicInteger;

import java.util.function.Consumer;

import java.util.stream.Collectors;



/**

 * This manages the execution of the main thread in an
@@ -1168,6 +1169,39 @@ public final class ActivityThread extends ClientTransactionHandler 
        ApplicationThread() {

        }



        @Override

        public boolean onTransact(int code, Parcel data, Parcel reply, int flags)

                throws RemoteException {

            if (Build.IS_DEBUGGABLE) {

                int callingUid = Binder.getCallingUid();

                if (callingUid != Process.SYSTEM_UID) {

                    String packageName;

                    if (callingUid == Process.ROOT_UID) {

                        packageName = "root";

                    } else {

                        String[] packagesForUid =

                                getSystemContext().getPackageManager().getPackagesForUid(

                                        callingUid);

                        if (packagesForUid == null || packagesForUid.length == 0) {

                            packageName = "unknown";

                        } else if (packagesForUid.length == 1) {

                            packageName = packagesForUid[0];

                        } else {

                            packageName = Arrays.asList(packagesForUid).stream().sorted().collect(

                                    Collectors.joining(", "));

                        }

                    }

                    Slog.wtf(TAG, "ApplicationThread called by non-system process"

                            + " (callingUid: " + callingUid

                            + "; packageName: " + packageName

                            + "; code: " + code

                            + "; flags: " + flags

                            + ")");

                }

            }

            return super.onTransact(code, data, reply, flags);

        }



        private static final String DB_CONNECTION_INFO_HEADER = "  %8s %8s %14s %5s %5s %5s  %s";

        private static final String DB_CONNECTION_INFO_FORMAT = "  %8s %8s %14s %5d %5d %5d  %s";

        private static final String DB_POOL_INFO_HEADER = "  %13s %13s %13s  %s";