A complete solution for apps using root permissions
An Android library providing a complete solution for apps using root permissions.
libsu comes with 2 main components: the core module handles the creation of the Unix (root) shell process and wraps it with high level, robust Java APIs; the service module handles the launching, binding, and management of root services over IPC, allowing you to run Java/Kotlin and C/C++ code (via JNI) with root permissions.
…Please note that this is a quick demo going through the key features of libsu. Please read the full Javadoc and check out the example app (:example) in this project for more details.
Similar to threads where there is a special "main thread", libsu also has the concept of the "main shell". For each process, there is a single globally shared "main shell" that is constructed on-demand and cached. Set default configurations before the main Shell instance is created:
…Shell operations can be performed through static Shell.cmd(...) methods that directly use the main root shell:
…Optionally, a similar concept to .bashrc, initialize shells with custom Shell.Initializer:
…If interacting with a root shell is too limited for your needs, you can also implement a root service to run complex code. A root service is similar to Bound Services but running in a root process. libsu uses Android's native IPC mechanism, binder, for communication between your root service and the main application process. In addition to running Java/Kotlin code, loading native libraries with JNI is also supported (android:extractNativeLibs=false is allowed). For more details, please read the full Javadoc of RootService and check out the example app for more details. Add com.github.topjohnwu.libsu:service as a dependency to access RootService:
public class RootConnection implements ServiceConnection { ... }
public class ExampleService extends RootService {
@Override
public IBinder onBind(Intent intent) {
// return IBinder from Messenger or AIDL stub implementation
}
}
RootConnection connection = new RootConnection();
Intent intent = new Intent(context, ExampleService.class);
RootService.bind(intent, connection);If the application process creating the root service has a debugger attached, the root service will automatically enable debugging mode and wait for the debugger to attach. In Android Studio, go to "Run > Attach Debugger to Android Process", tick the "Show all processes" box, and you should be able to manually attach to the remote root process. Currently, only the "Java only" debugger is supported.
Add com.github.topjohnwu.libsu:nio as a dependency to access remote file system APIs:
…This project is licensed under the Apache License, Version 2.0. Please refer to LICENSE for the full text.
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