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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.art;
import static com.android.server.art.OutputArtifacts.PermissionSettings;
import static com.android.server.art.OutputArtifacts.PermissionSettings.SeContext;
import static com.android.server.art.PrimaryDexUtils.DetailedPrimaryDexInfo;
import static com.android.server.art.Utils.Abi;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.content.Context;
import android.os.Build;
import android.os.CancellationSignal;
import android.os.Process;
import android.os.RemoteException;
import android.os.ServiceSpecificException;
import android.os.UserHandle;
import android.text.TextUtils;
import android.util.Log;
import androidx.annotation.RequiresApi;
import com.android.internal.annotations.VisibleForTesting;
import com.android.modules.utils.pm.PackageStateModulesUtils;
import com.android.server.art.model.ArtFlags;
import com.android.server.art.model.Config;
import com.android.server.art.model.DexoptParams;
import com.android.server.art.model.DexoptResult;
import com.android.server.pm.PackageManagerLocal;
import com.android.server.pm.pkg.AndroidPackage;
import com.android.server.pm.pkg.PackageState;
import dalvik.system.DexFile;
import com.google.auto.value.AutoValue;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/** @hide */
@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
public class PrimaryDexopter extends Dexopter<DetailedPrimaryDexInfo> {
private static final String TAG = ArtManagerLocal.TAG;
private final int mSharedGid;
public PrimaryDexopter(@NonNull Context context, @NonNull Config config,
@NonNull PackageState pkgState, @NonNull AndroidPackage pkg,
@NonNull DexoptParams params, @NonNull CancellationSignal cancellationSignal) {
this(new Injector(context, config), pkgState, pkg, params, cancellationSignal);
}
@VisibleForTesting
public PrimaryDexopter(@NonNull Injector injector, @NonNull PackageState pkgState,
@NonNull AndroidPackage pkg, @NonNull DexoptParams params,
@NonNull CancellationSignal cancellationSignal) {
super(injector, pkgState, pkg, params, cancellationSignal);
mSharedGid = UserHandle.getSharedAppGid(pkgState.getAppId());
if (mSharedGid < 0) {
throw new IllegalStateException(
String.format("Unable to get shared gid for package '%s' (app ID: %d)",
pkgState.getPackageName(), pkgState.getAppId()));
}
}
@Override
protected boolean isInDalvikCache() throws RemoteException {
return Utils.isInDalvikCache(mPkgState, mInjector.getArtd());
}
@Override
@NonNull
protected List<DetailedPrimaryDexInfo> getDexInfoList() {
return PrimaryDexUtils.getDetailedDexInfo(mPkgState, mPkg);
}
@Override
protected boolean isDexoptable(@NonNull DetailedPrimaryDexInfo dexInfo) {
if (!dexInfo.hasCode()) {
return false;
}
if ((mParams.getFlags() & ArtFlags.FLAG_FOR_SINGLE_SPLIT) != 0) {
return Objects.equals(mParams.getSplitName(), dexInfo.splitName());
}
return true;
}
@Override
protected boolean needsToBeShared(@NonNull DetailedPrimaryDexInfo dexInfo) {
return isSharedLibrary()
|| mInjector.getDexUseManager().isPrimaryDexUsedByOtherApps(
mPkgState.getPackageName(), dexInfo.dexPath());
}
@Override
protected boolean isDexFilePublic(@NonNull DetailedPrimaryDexInfo dexInfo) {
// The filesystem permission of a primary dex file always has the S_IROTH bit. In practice,
// the accessibility is enforced by Application Sandbox, not filesystem permission.
return true;
}
@Override
@NonNull
protected List<ProfilePath> getExternalProfiles(@NonNull DetailedPrimaryDexInfo dexInfo) {
return PrimaryDexUtils.getExternalProfiles(dexInfo);
}
@Override
@NonNull
protected PermissionSettings getPermissionSettings(
@NonNull DetailedPrimaryDexInfo dexInfo, boolean canBePublic) {
// The files and directories should belong to the system so that Package Manager can manage
// them (e.g., move them around).
// We don't need the "read" bit for "others" on the directories because others only need to
// access the files in the directories, but they don't need to "ls" the directories.
FsPermission dirFsPermission = AidlUtils.buildFsPermission(Process.SYSTEM_UID /* uid */,
Process.SYSTEM_UID /* gid */, false /* isOtherReadable */,
true /* isOtherExecutable */);
FsPermission fileFsPermission = AidlUtils.buildFsPermission(
Process.SYSTEM_UID /* uid */, mSharedGid /* gid */, canBePublic);
// For primary dex, we can use the default SELinux context.
SeContext seContext = null;
return AidlUtils.buildPermissionSettings(dirFsPermission, fileFsPermission, seContext);
}
@Override
@NonNull
protected List<Abi> getAllAbis(@NonNull DetailedPrimaryDexInfo dexInfo) {
return Utils.getAllAbis(mPkgState);
}
@Override
@NonNull
protected ProfilePath buildRefProfilePathAsInput(@NonNull DetailedPrimaryDexInfo dexInfo) {
return PrimaryDexUtils.buildRefProfilePathAsInput(mPkgState, dexInfo);
}
@Override
@NonNull
protected OutputProfile buildOutputProfile(
@NonNull DetailedPrimaryDexInfo dexInfo, boolean isPublic) {
return PrimaryDexUtils.buildOutputProfile(mPkgState, dexInfo, Process.SYSTEM_UID,
mSharedGid, isPublic, mInjector.isPreReboot());
}
@Override
@NonNull
protected List<ProfilePath> getCurProfiles(@NonNull DetailedPrimaryDexInfo dexInfo) {
return PrimaryDexUtils.getCurProfiles(mInjector.getUserManager(), mPkgState, dexInfo);
}
@Override
@Nullable
protected DexMetadataPath buildDmPath(@NonNull DetailedPrimaryDexInfo dexInfo) {
return AidlUtils.buildDexMetadataPath(dexInfo.dexPath());
}
private boolean isSharedLibrary() {
return PackageStateModulesUtils.isLoadableInOtherProcesses(mPkgState, true /* codeOnly */);
}
}
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