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GKMSPatch
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Use SharedMemory to load modules

This commit is contained in:
Nullptr 2021-08-11 16:55:35 +08:00
parent 258e10337d
commit 2d0a2bdd27
2 changed files with 74 additions and 12 deletions
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84
app/src/main/java/org/lsposed/lspatch/loader/LSPApplication.java
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@ -16,7 +16,10 @@ import android.os.Environment;
import android.os.IBinder;
import android.os.Parcel;
import android.os.ParcelFileDescriptor;
import android.os.SharedMemory;
import android.system.ErrnoException;
import android.system.Os;
import android.system.OsConstants;
import android.util.Log;
import org.json.JSONArray;
@ -27,18 +30,21 @@ import org.lsposed.lspatch.share.Constants;
import org.lsposed.lspd.config.ApplicationServiceClient;
import org.lsposed.lspd.core.Main;
import org.lsposed.lspd.models.Module;
import org.lsposed.lspd.models.PreLoadedApk;
import org.lsposed.lspd.nativebridge.SigBypass;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.nio.channels.Channels;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
@ -47,6 +53,7 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.zip.ZipFile;
import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedBridge;
@ -191,8 +198,8 @@ public class LSPApplication extends ApplicationServiceClient {
if (target.lastModified() > lastInstalledTime) {
embedded_modules.add(name);
var module = new Module();
module.apk = target.getAbsolutePath();
module.name = target.getName();
module.apkPath = target.getAbsolutePath();
module.packageName = target.getName();
LSPApplication.modules.add(module);
continue;
}
@ -200,8 +207,8 @@ public class LSPApplication extends ApplicationServiceClient {
Files.copy(is, target.toPath());
embedded_modules.add(name);
var module = new Module();
module.apk = target.getAbsolutePath();
module.name = target.getName();
module.apkPath = target.getAbsolutePath();
module.packageName = target.getName();
LSPApplication.modules.add(module);
} catch (IOException ignored) {
@ -227,19 +234,20 @@ public class LSPApplication extends ApplicationServiceClient {
}
if (app.metaData != null && app.metaData.containsKey("xposedminversion") && !embedded_modules.contains(app.packageName)) {
var module = new Module();
module.apk = app.publicSourceDir;
module.name = app.packageName;
module.apkPath = app.publicSourceDir;
module.packageName = app.packageName;
LSPApplication.modules.add(module);
}
}
final var new_modules = new JSONArray();
LSPApplication.modules.forEach(m -> {
try {
m.file = loadModule(m.apkPath);
var module = new JSONObject();
module.put("name", m.name);
module.put("enabled", !disabled_modules.contains(m.name));
module.put("use_embed", embedded_modules.contains(m.name));
module.put("path", m.apk);
module.put("name", m.packageName);
module.put("enabled", !disabled_modules.contains(m.packageName));
module.put("use_embed", embedded_modules.contains(m.packageName));
module.put("path", m.apkPath);
new_modules.put(module);
} catch (Throwable ignored) {
}
@ -257,6 +265,60 @@ public class LSPApplication extends ApplicationServiceClient {
}
}
private static void readDexes(ZipFile apkFile, List<SharedMemory> preLoadedDexes) {
int secondary = 2;
for (var dexFile = apkFile.getEntry("classes.dex"); dexFile != null;
dexFile = apkFile.getEntry("classes" + secondary + ".dex"), secondary++) {
try (var in = apkFile.getInputStream(dexFile)) {
var memory = SharedMemory.create(null, in.available());
var byteBuffer = memory.mapReadWrite();
Channels.newChannel(in).read(byteBuffer);
SharedMemory.unmap(byteBuffer);
memory.setProtect(OsConstants.PROT_READ);
preLoadedDexes.add(memory);
} catch (IOException | ErrnoException e) {
Log.w(TAG, "Can not load " + dexFile + " in " + apkFile, e);
}
}
}
private static void readName(ZipFile apkFile, String initName, List<String> names) {
var initEntry = apkFile.getEntry(initName);
if (initEntry == null) return;
try (var in = apkFile.getInputStream(initEntry)) {
var reader = new BufferedReader(new InputStreamReader(in));
String name;
while ((name = reader.readLine()) != null) {
name = name.trim();
if (name.isEmpty() || name.startsWith("#")) continue;
names.add(name);
}
} catch (IOException e) {
Log.e(TAG, "Can not open " + initEntry, e);
}
}
private static PreLoadedApk loadModule(String path) {
var file = new PreLoadedApk();
var preLoadedDexes = new ArrayList<SharedMemory>();
var moduleClassNames = new ArrayList<String>(1);
var moduleLibraryNames = new ArrayList<String>(1);
try (var apkFile = new ZipFile(path)) {
readDexes(apkFile, preLoadedDexes);
readName(apkFile, "assets/xposed_init", moduleClassNames);
readName(apkFile, "assets/native_init", moduleLibraryNames);
} catch (IOException e) {
Log.e(TAG, "Can not open " + path, e);
return null;
}
if (preLoadedDexes.isEmpty()) return null;
if (moduleClassNames.isEmpty()) return null;
file.preLoadedDexes = preLoadedDexes;
file.moduleClassNames = moduleClassNames;
file.moduleLibraryNames = moduleLibraryNames;
return file;
}
public LSPApplication() {
super();
}

2
core

@ -1 +1 @@
Subproject commit fe666de6eac0bac98cd0ea192d8cdcc7ea6b6d80
Subproject commit 89b6ddbb68c1256284153299036b0cfa8b887d9a