Merge "Temp skip /product folder during root-hash calculation." into tm-dev

import android.content.pm.ApkChecksum;

import android.content.pm.Checksum;

import android.content.pm.IOnChecksumsReadyListener;

import android.content.pm.PackageManager;

import android.content.pm.PackageManagerInternal;

import android.content.pm.Signature;

import android.content.pm.SigningDetails.SignatureSchemeVersion;

import android.content.pm.parsing.ApkLiteParseUtils;

import android.content.pm.parsing.result.ParseResult;

import android.content.pm.parsing.result.ParseTypeImpl;

import android.os.Environment;

import android.os.FileUtils;

import android.os.Handler;

import android.os.RemoteException;

import android.os.SystemClock;

import com.android.internal.annotations.VisibleForTesting;

import com.android.internal.security.VerityUtils;

import com.android.server.LocalServices;

import com.android.server.pm.parsing.pkg.AndroidPackage;

import java.io.ByteArrayOutputStream;

        return null;

    }

    private static boolean containsFile(File dir, String filePath) {

        if (dir == null) {

            return false;

        }

        return FileUtils.contains(dir.getAbsolutePath(), filePath);

    }

    private static ApkChecksum extractHashFromFS(String split, String filePath) {

        // verity first

        {

        // Skip /product folder.

        // TODO(b/231354111): remove this hack once we are allowed to change SELinux rules.

        if (!containsFile(Environment.getProductDirectory(), filePath)) {

            byte[] hash = VerityUtils.getFsverityRootHash(filePath);

            if (hash != null) {

                return new ApkChecksum(split, TYPE_WHOLE_MERKLE_ROOT_4K_SHA256, hash);