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Update the method to handle global su db

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This commit is contained in:
topjohnwu 2018-01-31 04:00:11 +08:00
parent b05d2d3a2d
commit 3f55be9676
6 changed files with 87 additions and 138 deletions
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7
src/main/java/com/topjohnwu/magisk/MagiskManager.java
View File

@ -119,7 +119,7 @@ public class MagiskManager extends Shell.ContainerApp {
} catch (PackageManager.NameNotFoundException ignored) { /* Expected */ }
}
suDB = SuDatabaseHelper.getSuDB(false);
suDB = SuDatabaseHelper.getInstance(this);
repoDB = new RepoDatabaseHelper(this);
defaultLocale = Locale.getDefault();
setLocale();
@ -219,11 +219,6 @@ public class MagiskManager extends Shell.ContainerApp {
ret = Shell.Sync.su("echo \"$BOOTIMAGE\"");
if (Utils.isValidShellResponse(ret))
bootBlock = ret.get(0);
if (suDB != null && !SuDatabaseHelper.verified) {
suDB.close();
suDB = SuDatabaseHelper.getSuDB(true);
}
}
public void getDefaultInstallFlags() {

2
src/main/java/com/topjohnwu/magisk/asyncs/HideManager.java
View File

@ -4,13 +4,13 @@ import android.app.Activity;
import android.app.ProgressDialog;
import android.widget.Toast;
import com.topjohnwu.utils.JarMap;
import com.topjohnwu.magisk.MagiskManager;
import com.topjohnwu.magisk.R;
import com.topjohnwu.magisk.utils.Const;
import com.topjohnwu.magisk.utils.Utils;
import com.topjohnwu.magisk.utils.ZipUtils;
import com.topjohnwu.superuser.Shell;
import com.topjohnwu.utils.JarMap;
import java.io.File;
import java.io.FileInputStream;

2
src/main/java/com/topjohnwu/magisk/asyncs/InstallMagisk.java
View File

@ -7,7 +7,6 @@ import android.os.Build;
import android.text.TextUtils;
import android.view.View;
import com.topjohnwu.utils.SignBoot;
import com.topjohnwu.magisk.FlashActivity;
import com.topjohnwu.magisk.MagiskManager;
import com.topjohnwu.magisk.container.TarEntry;
@ -15,6 +14,7 @@ import com.topjohnwu.magisk.utils.Const;
import com.topjohnwu.magisk.utils.Utils;
import com.topjohnwu.magisk.utils.ZipUtils;
import com.topjohnwu.superuser.Shell;
import com.topjohnwu.utils.SignBoot;
import org.kamranzafar.jtar.TarInputStream;
import org.kamranzafar.jtar.TarOutputStream;

212
src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
View File

@ -5,8 +5,8 @@ import android.content.Context;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Build;
import android.os.Process;
import android.text.TextUtils;
import android.widget.Toast;
@ -25,142 +25,99 @@ import java.util.Collections;
import java.util.Date;
import java.util.List;
public class SuDatabaseHelper extends SQLiteOpenHelper {
public static final String DB_NAME = "su.db";
public static boolean verified = false;
public class SuDatabaseHelper {
private static final int DATABASE_VER = 5;
private static final String POLICY_TABLE = "policies";
private static final String LOG_TABLE = "logs";
private static final String SETTINGS_TABLE = "settings";
private static final String STRINGS_TABLE = "strings";
private static final File GLOBAL_DB = new File("/data/adb/magisk.db");
private Context mContext;
private PackageManager pm;
private SQLiteDatabase mDb;
private static void unmntDB() {
Shell.Sync.su(Utils.fmt("umount -l /data/user*/*/%s/*/*.db", MagiskManager.get().getPackageName()));
}
private static Context initDB(boolean verify) {
Context context, de = null;
MagiskManager ce = MagiskManager.get();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
de = ce.createDeviceProtectedStorageContext();
File ceDB = Utils.getDB(ce, DB_NAME);
if (ceDB.exists()) {
context = ce;
} else {
context = de;
}
} else {
context = ce;
}
File db = Utils.getDB(context, DB_NAME);
if (!verify) {
if (db.exists() && db.length() == 0) {
ce.loadMagiskInfo();
// Continue verification
} else {
return context;
}
}
// Encryption storage
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
if (ce.magiskVersionCode < 1410) {
if (context == de) {
unmntDB();
ce.moveDatabaseFrom(de, DB_NAME);
context = ce;
}
} else {
if (context == ce) {
unmntDB();
de.moveDatabaseFrom(ce, DB_NAME);
context = de;
}
}
}
// Context might be updated
db = Utils.getDB(context, DB_NAME);
if (!Shell.rootAccess())
return context;
// Verify the global db matches the local with the same inode
if (ce.magiskVersionCode >= 1450 && ce.magiskVersionCode < 1460) {
// v14.5 global su db
File OLD_GLOBAL_DB = new File(context.getFilesDir().getParentFile().getParentFile(), "magisk.db");
verified = TextUtils.equals(Utils.checkInode(OLD_GLOBAL_DB), Utils.checkInode(db));
if (!verified) {
context.deleteDatabase(DB_NAME);
db.getParentFile().mkdirs();
Shell.Sync.su(Utils.fmt("magisk --clone-attr %s %s; chmod 600 %s; ln %s %s",
context.getFilesDir(), OLD_GLOBAL_DB, OLD_GLOBAL_DB, OLD_GLOBAL_DB, db));
verified = TextUtils.equals(Utils.checkInode(OLD_GLOBAL_DB), Utils.checkInode(db));
}
} else if (ce.magiskVersionCode >= 1464) {
// New global su db
Shell.Sync.su(Utils.fmt("mkdir %s 2>/dev/null; chmod 700 %s", GLOBAL_DB.getParent(), GLOBAL_DB.getParent()));
if (!Utils.itemExist(GLOBAL_DB)) {
context.openOrCreateDatabase(DB_NAME, 0, null).close();
Shell.Sync.su(Utils.fmt("cp -af %s %s; rm -f %s*", db, GLOBAL_DB, db));
}
verified = TextUtils.equals(Utils.checkInode(GLOBAL_DB), Utils.checkInode(db));
if (!verified) {
context.deleteDatabase(DB_NAME);
Utils.javaCreateFile(db);
Shell.Sync.su(Utils.fmt(
"chown 0.0 %s; chmod 666 %s; chcon u:object_r:su_file:s0 %s;" +
"mount -o bind %s %s",
GLOBAL_DB, GLOBAL_DB, GLOBAL_DB, GLOBAL_DB, db));
verified = TextUtils.equals(Utils.checkInode(GLOBAL_DB), Utils.checkInode(db));
}
}
return context;
}
public static SuDatabaseHelper getSuDB(boolean verify) {
public static SuDatabaseHelper getInstance(MagiskManager mm) {
try {
return new SuDatabaseHelper(initDB(verify));
} catch(Exception e) {
// Try to catch runtime exceptions and remove all db for retry
unmntDB();
Shell.Sync.su(Utils.fmt("rm -rf /data/user*/*/magisk.db /data/adb/magisk.db /data/user*/*/%s/databases",
MagiskManager.get().getPackageName()));
e.printStackTrace();
return new SuDatabaseHelper(initDB(false));
}
}
private SuDatabaseHelper(Context context) {
super(context, DB_NAME, null, DATABASE_VER);
mContext = context;
pm = context.getPackageManager();
mDb = getWritableDatabase();
return new SuDatabaseHelper(mm);
} catch (Exception e) {
// Let's cleanup and try again
cleanup();
if (context.getPackageName().equals(Const.ORIG_PKG_NAME)) {
String pkg = getStrings(Const.Key.SU_REQUESTER, null);
if (pkg != null) {
Utils.uninstallPkg(pkg);
setStrings(Const.Key.SU_REQUESTER, null);
}
return new SuDatabaseHelper(mm);
}
}
@Override
public void onCreate(SQLiteDatabase db) {
onUpgrade(db, 0, DATABASE_VER);
public static void cleanup() {
Shell.Sync.su(
"umount -l /data/user*/*/*/databases/su.db /sbin/.core/db-*/magisk.db",
"rm -rf /sbin/.core/db-*");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
private SuDatabaseHelper(MagiskManager mm) {
pm = mm.getPackageManager();
mDb = openDatabase(mm);
clearOutdated();
}
private SQLiteDatabase openDatabase(MagiskManager mm) {
SQLiteDatabase db = null;
String GLOBAL_DB = "/data/adb/magisk.db";
File dbFile = new File(Utils.fmt("/sbin/.core/db-%s/magisk.db", mm.getPackageName()));
Context de = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N
? mm.createDeviceProtectedStorageContext() : mm;
if (!dbFile.exists()) {
if (!Shell.rootAccess()) {
// We don't want the app to crash, create a db and return
return mm.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
}
mm.loadMagiskInfo();
// Cleanup
cleanup();
if (mm.magiskVersionCode < 1410) {
// Super old legacy mode
db = mm.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
} else if (mm.magiskVersionCode < 1450) {
// Legacy mode with FBE aware
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
de.moveDatabaseFrom(mm, "su.db");
}
db = de.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
} else {
mm.deleteDatabase("su.db");
de.deleteDatabase("su.db");
if (mm.magiskVersionCode < 1460) {
// v14.5 global DB location
GLOBAL_DB = new File(de.getFilesDir().getParentFile().getParentFile(),
"magisk.db").getPath();
// We need some additional policies on old versions
Shell.Sync.su("magiskpolicy --live 'create su_file' 'allow * su_file file *'");
}
// Touch global DB and setup db in tmpfs
Shell.Sync.su(Utils.fmt("touch %s; mkdir -p %s; touch %s; touch %s-journal;" +
"mount -o bind %s %s;" +
"chcon u:object_r:su_file:s0 %s/*; chown %d.%d %s;" +
"chmod 666 %s/*; chmod 700 %s;",
GLOBAL_DB, dbFile.getParent(), dbFile, dbFile,
GLOBAL_DB, dbFile,
dbFile.getParent(), Process.myUid(), Process.myUid(), dbFile.getParent(),
dbFile.getParent(), dbFile.getParent()
));
}
}
if (db == null) {
// Not using legacy mode, open the mounted global DB
db = SQLiteDatabase.openOrCreateDatabase(dbFile, null);
}
int version = db.getVersion();
if (version < DATABASE_VER) {
onUpgrade(db, version);
} else if (version > DATABASE_VER) {
onDowngrade(db);
}
db.setVersion(DATABASE_VER);
return db;
}
public void onUpgrade(SQLiteDatabase db, int oldVersion) {
try {
if (oldVersion == 0) {
createTables(db);
@ -196,23 +153,18 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
}
} catch (Exception e) {
e.printStackTrace();
onDowngrade(db, DATABASE_VER, 0);
onDowngrade(db);
}
}
@Override
public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
MagiskManager.toast(R.string.su_db_corrupt, Toast.LENGTH_LONG);
// Remove everything, we do not support downgrade
public void onDowngrade(SQLiteDatabase db) {
MagiskManager.toast(R.string.su_db_corrupt, Toast.LENGTH_LONG);
db.execSQL("DROP TABLE IF EXISTS " + POLICY_TABLE);
db.execSQL("DROP TABLE IF EXISTS " + LOG_TABLE);
db.execSQL("DROP TABLE IF EXISTS " + SETTINGS_TABLE);
db.execSQL("DROP TABLE IF EXISTS " + STRINGS_TABLE);
onUpgrade(db, 0, DATABASE_VER);
}
public File getDbFile() {
return mContext.getDatabasePath(DB_NAME);
onUpgrade(db, 0);
}
private void createTables(SQLiteDatabase db) {
@ -235,7 +187,7 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
"(key TEXT, value INT, PRIMARY KEY(key))");
}
public void cleanup() {
public void clearOutdated() {
// Clear outdated policies
mDb.delete(POLICY_TABLE, Utils.fmt("until > 0 AND until < %d", System.currentTimeMillis() / 1000), null);
// Clear outdated logs

2
src/main/java/com/topjohnwu/magisk/superuser/RequestActivity.java
View File

@ -68,7 +68,7 @@ public class RequestActivity extends Activity {
pm = getPackageManager();
mm = Utils.getMagiskManager(this);
mm.suDB.cleanup();
mm.suDB.clearOutdated();
Intent intent = getIntent();
socketPath = intent.getStringExtra("socket");

4
src/main/java/com/topjohnwu/magisk/utils/Utils.java
View File

@ -28,6 +28,7 @@ import com.topjohnwu.magisk.MagiskManager;
import com.topjohnwu.magisk.R;
import com.topjohnwu.magisk.SplashActivity;
import com.topjohnwu.magisk.components.SnackbarMaker;
import com.topjohnwu.magisk.database.SuDatabaseHelper;
import com.topjohnwu.magisk.receivers.DownloadReceiver;
import com.topjohnwu.superuser.Shell;
@ -80,7 +81,8 @@ public class Utils {
}
public static void uninstallPkg(String pkg) {
Shell.Sync.su(fmt("umount -l /data/user*/*/%s/*/*.db 2>/dev/null; pm uninstall %s", pkg, pkg));
SuDatabaseHelper.cleanup();
Shell.Sync.su("pm uninstall " + pkg);
}
public static void dlAndReceive(Context context, DownloadReceiver receiver, String link, String filename) {