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-rw-r--r--cmds/bu/src/com/android/commands/bu/Backup.java7
-rw-r--r--core/java/android/app/backup/IBackupManager.aidl6
-rw-r--r--services/java/com/android/server/BackupManagerService.java39
3 files changed, 40 insertions, 12 deletions
diff --git a/cmds/bu/src/com/android/commands/bu/Backup.java b/cmds/bu/src/com/android/commands/bu/Backup.java
index 4c4bf9863aea..046ccca9b02a 100644
--- a/cmds/bu/src/com/android/commands/bu/Backup.java
+++ b/cmds/bu/src/com/android/commands/bu/Backup.java
@@ -66,6 +66,7 @@ public final class Backup {
boolean saveApks = false;
boolean saveShared = false;
boolean doEverything = false;
+ boolean allIncludesSystem = true;
String arg;
while ((arg = nextArg()) != null) {
@@ -78,6 +79,10 @@ public final class Backup {
saveShared = true;
} else if ("-noshared".equals(arg)) {
saveShared = false;
+ } else if ("-system".equals(arg)) {
+ allIncludesSystem = true;
+ } else if ("-nosystem".equals(arg)) {
+ allIncludesSystem = false;
} else if ("-all".equals(arg)) {
doEverything = true;
} else {
@@ -102,7 +107,7 @@ public final class Backup {
try {
ParcelFileDescriptor fd = ParcelFileDescriptor.adoptFd(socketFd);
String[] packArray = new String[packages.size()];
- mBackupManager.fullBackup(fd, saveApks, saveShared, doEverything,
+ mBackupManager.fullBackup(fd, saveApks, saveShared, doEverything, allIncludesSystem,
packages.toArray(packArray));
} catch (RemoteException e) {
Log.e(TAG, "Unable to invoke backup manager for backup");
diff --git a/core/java/android/app/backup/IBackupManager.aidl b/core/java/android/app/backup/IBackupManager.aidl
index c154296fbf03..acdd0b54559a 100644
--- a/core/java/android/app/backup/IBackupManager.aidl
+++ b/core/java/android/app/backup/IBackupManager.aidl
@@ -157,11 +157,15 @@ interface IBackupManager {
* @param allApps If <code>true</code>, the resulting tar stream will include all
* installed applications' data, not just those named in the <code>packageNames</code>
* parameter.
+ * @param allIncludesSystem If {@code true}, then {@code allApps} will be interpreted
+ * as including packages pre-installed as part of the system. If {@code false},
+ * then setting {@code allApps} to {@code true} will mean only that all 3rd-party
+ * applications will be included in the dataset.
* @param packageNames The package names of the apps whose data (and optionally .apk files)
* are to be backed up. The <code>allApps</code> parameter supersedes this.
*/
void fullBackup(in ParcelFileDescriptor fd, boolean includeApks, boolean includeShared,
- boolean allApps, in String[] packageNames);
+ boolean allApps, boolean allIncludesSystem, in String[] packageNames);
/**
* Restore device content from the data stream passed through the given socket. The
diff --git a/services/java/com/android/server/BackupManagerService.java b/services/java/com/android/server/BackupManagerService.java
index fe49cd2bd4c8..7b8657a03f26 100644
--- a/services/java/com/android/server/BackupManagerService.java
+++ b/services/java/com/android/server/BackupManagerService.java
@@ -325,14 +325,16 @@ class BackupManagerService extends IBackupManager.Stub {
public boolean includeApks;
public boolean includeShared;
public boolean allApps;
+ public boolean includeSystem;
public String[] packages;
FullBackupParams(ParcelFileDescriptor output, boolean saveApks, boolean saveShared,
- boolean doAllApps, String[] pkgList) {
+ boolean doAllApps, boolean doSystem, String[] pkgList) {
fd = output;
includeApks = saveApks;
includeShared = saveShared;
allApps = doAllApps;
+ includeSystem = doSystem;
packages = pkgList;
}
}
@@ -504,7 +506,7 @@ class BackupManagerService extends IBackupManager.Stub {
PerformFullBackupTask task = new PerformFullBackupTask(params.fd,
params.observer, params.includeApks,
params.includeShared, params.curPassword, params.encryptPassword,
- params.allApps, params.packages, params.latch);
+ params.allApps, params.includeSystem, params.packages, params.latch);
(new Thread(task)).start();
break;
}
@@ -2161,6 +2163,7 @@ class BackupManagerService extends IBackupManager.Stub {
boolean mIncludeApks;
boolean mIncludeShared;
boolean mAllApps;
+ final boolean mIncludeSystem;
String[] mPackages;
String mCurrentPassword;
String mEncryptPassword;
@@ -2219,13 +2222,14 @@ class BackupManagerService extends IBackupManager.Stub {
PerformFullBackupTask(ParcelFileDescriptor fd, IFullBackupRestoreObserver observer,
boolean includeApks, boolean includeShared, String curPassword,
- String encryptPassword, boolean doAllApps, String[] packages,
+ String encryptPassword, boolean doAllApps, boolean doSystem, String[] packages,
AtomicBoolean latch) {
mOutputFile = fd;
mObserver = observer;
mIncludeApks = includeApks;
mIncludeShared = includeShared;
mAllApps = doAllApps;
+ mIncludeSystem = doSystem;
mPackages = packages;
mCurrentPassword = curPassword;
// when backing up, if there is a current backup password, we require that
@@ -2245,7 +2249,7 @@ class BackupManagerService extends IBackupManager.Stub {
@Override
public void run() {
- final List<PackageInfo> packagesToBackup;
+ List<PackageInfo> packagesToBackup = new ArrayList<PackageInfo>();
Slog.i(TAG, "--- Performing full-dataset backup ---");
sendStartBackup();
@@ -2254,8 +2258,23 @@ class BackupManagerService extends IBackupManager.Stub {
if (mAllApps) {
packagesToBackup = mPackageManager.getInstalledPackages(
PackageManager.GET_SIGNATURES);
- } else {
- packagesToBackup = new ArrayList<PackageInfo>();
+ // Exclude system apps if we've been asked to do so
+ if (mIncludeSystem == false) {
+ for (int i = 0; i < packagesToBackup.size(); ) {
+ PackageInfo pkg = packagesToBackup.get(i);
+ if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+ packagesToBackup.remove(i);
+ } else {
+ i++;
+ }
+ }
+ }
+ }
+
+ // Now process the command line argument packages, if any. Note that explicitly-
+ // named system-partition packages will be included even if includeSystem was
+ // set to false.
+ if (mPackages != null) {
for (String pkgName : mPackages) {
try {
packagesToBackup.add(mPackageManager.getPackageInfo(pkgName,
@@ -2268,8 +2287,8 @@ class BackupManagerService extends IBackupManager.Stub {
// Cull any packages that have indicated that backups are not permitted.
for (int i = 0; i < packagesToBackup.size(); ) {
- PackageInfo info = packagesToBackup.get(i);
- if ((info.applicationInfo.flags & ApplicationInfo.FLAG_ALLOW_BACKUP) == 0) {
+ PackageInfo pkg = packagesToBackup.get(i);
+ if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_ALLOW_BACKUP) == 0) {
packagesToBackup.remove(i);
} else {
i++;
@@ -4781,7 +4800,7 @@ class BackupManagerService extends IBackupManager.Stub {
// to the supplied file descriptor. This method is synchronous and does not return
// to the caller until the backup has been completed.
public void fullBackup(ParcelFileDescriptor fd, boolean includeApks, boolean includeShared,
- boolean doAllApps, String[] pkgList) {
+ boolean doAllApps, boolean includeSystem, String[] pkgList) {
mContext.enforceCallingPermission(android.Manifest.permission.BACKUP, "fullBackup");
// Validate
@@ -4811,7 +4830,7 @@ class BackupManagerService extends IBackupManager.Stub {
Slog.i(TAG, "Beginning full backup...");
FullBackupParams params = new FullBackupParams(fd, includeApks, includeShared,
- doAllApps, pkgList);
+ doAllApps, includeSystem, pkgList);
final int token = generateToken();
synchronized (mFullConfirmations) {
mFullConfirmations.put(token, params);
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-10 14:04:25 +0000