Android 14 Internals customize Cuttlefish in the cloud

Android 14 Internals – customize Cuttlefish in the cloud, available at Free, has an average rating of 4.35, with 49 lectures, based on 14 reviews, and has 284 subscribers.

You will learn about Understand Android OS Architecture and control Linux kernel drivers Develop a C++ service and make it persistent with an rc file Build a Kotlin application with system control UI Use AIDL for HAL communication be in line to AOSP design patterns and the CTS Learn how to solve SELinux avc denied errors This course is ideal for individuals who are Anyone wanting to understand the Android OS for work, hobby or to gain experience It is particularly useful for Anyone wanting to understand the Android OS for work, hobby or to gain experience.

Enroll now: Android 14 Internals – customize Cuttlefish in the cloud

Summary

Title: Android 14 Internals – customize Cuttlefish in the cloud

Price: Free

Average Rating: 4.35

Number of Lectures: 49

Number of Published Lectures: 49

Number of Curriculum Items: 49

Number of Published Curriculum Objects: 49

Original Price: Free

Quality Status: approved

Status: Live

What You Will Learn

Understand Android OS Architecture and control Linux kernel drivers

Develop a C++ service and make it persistent with an rc file

Build a Kotlin application with system control UI

Use AIDL for HAL communication be in line to AOSP design patterns and the CTS

Learn how to solve SELinux avc denied errors

Who Should Attend

Anyone wanting to understand the Android OS for work, hobby or to gain experience

Target Audiences

Anyone wanting to understand the Android OS for work, hobby or to gain experience

This comprehensive course is designed to guide participants through the intricacies of setting up a development environment on Ubuntu 20.04 within Google Cloud, diving deep into the Android Open Source Project (AOSP), and mastering the art of Android platform development.
Through a structured series of lectures and labs, learners will embark on a journey that covers a broad spectrum of topics from VM setup and source code compilation to advanced security and debugging techniques.

Section 1 lays the foundational knowledge required to navigate Google Cloud’s compute engine, install the gcloud CLI, and create a VMX-enabled Ubuntu VM, ensuring students are well-prepared for Android platform development.

Section 2 progresses to downloading and building the Android 14 source code. Participants will learn how to bring the Cuttlefish device to life, providing a practical environment for testing and development.

In Section 3, the course shifts focus to transforming Ubuntu Server into a Desktop environment and installing ASfP, equipping learners with the tools necessary for Android platform development.

Section 4 introduces essential tools like the ‘hmm’ command and adb, enhancing the learners’ ability to interact with and control Android devices and environments effectively.

Security basics are demystified in Section 5, where participants explore user IDs, discretionary and mandatory access control, and how Android secures application data and processes, providing a solid understanding of Android’s security model.

Section 6 delves into images and partitions of Android, revealing the complexities of system updates, and partition management.

Sections 7 through 14 consist of hands-on labs ranging from creating a CPU HAL interface with AIDL, developing service daemons, setting correct SELinux permissions, to creating and registering the CPU service implementation. Each lab is meticulously designed to reinforce learning, encourage exploration, and develop a thorough understanding of Android platform development.

Moreover, the labs tackles debugging tools and strategies, including forcing crashes and using llvm-addr2line, as well as debugging native services with lldb, preparing students to troubleshoot and optimize Android platform applications and services efficiently.

By the end of this course, participants will have gained not only theoretical knowledge but also practical experience in Android platform development, security models, debugging, and application deployment, enabling them to contribute to the Android ecosystem or undertake custom Android platform projects with confidence.

Course Curriculum

Chapter 1: Set up VMX enabled Ubuntu 20.04 in Google Cloud

Lecture 1: Create a Google Cloud account with compute engine enabled

Lecture 2: Install the gcloud CLI and connect to the AOSP project on your Google Cloud

Lecture 3: Create an Ubuntu 20.04 VM with VMX enabled

Chapter 2: Download the Android 14 source code, build and run the cuttlefish device

Lecture 1: Download the android-14.0.0_r21 branch

Lecture 2: Build and run the Cuttlefish VM

Chapter 3: Ubuntu Desktop + Android Studio for Platform (ASfP)

Lecture 1: Convert Ubuntu Server to Ubuntu Desktop

Lecture 2: Install and configure the Android Studio for Platform

Chapter 4: Tools – hmm, adb

Lecture 1: The hmm Command

Lecture 2: Authorizing Real Device for ADB Connection

Chapter 5: Security basics

Lecture 1: User IDs and the Discretionary Access Control

Lecture 2: Mandatory Access Control – SELinux

Lecture 3: Process Status (ps) and Private Application Files in /data/data

Chapter 6: Images and partitions

Lecture 1: PRODUCT_MAKEFILES and Makefile Inheritance

Lecture 2: Generic System Image (GSI)

Lecture 3: Android Partitions

Lecture 4: Dynamic Partitions, super.img, A/B System Updates and fastbootd

Chapter 7: Lab 1: AIDL for HAL – creating a CPU HAL Interface Definition

Lecture 1: About the Main Lab

Lecture 2: Change the CPU scaling governor via the command line (adb shell)

Lecture 3: Define an aidl_interface module in Android.bp

Lecture 4: Define a CPU interface in ICpu.aidl

Lecture 5: Build the CPU Interface using mm

Lecture 6: Add the AIDL interface to the Cuttlefish build

Chapter 8: Lab 2: Creating the service daemon

Lecture 1: Create an empty service holder in service.cpp

Lecture 2: Define a new CPU Service executable in Android.bp

Lecture 3: Define an init.rc persistent service pointing to the CPU service executable

Lecture 4: Define a Vendor Interface (VINTF) xml object

Lecture 5: Add the CPU Service to the Cuttlefish build

Chapter 9: Lab 3: Setting correct SELinux permissions

Lecture 1: Print the logcat and correctly label the service executable

Lecture 2: Define new SELinux types and use SELinux macros

Lecture 3: Use audit2allow to solve avc: denied errors

Chapter 10: Lab 4: Create and register the CPU service implementation

Lecture 1: Define the CPU class header file

Lecture 2: Define the CPU class implementation file

Lecture 3: Register the CPU service with the Service Manager

Lecture 4: Define a new CPU service interface SELinux type in the Service Manager

Chapter 11: Lab 5: Test the CPU service and fix permissions errors

Lecture 1: Create CpuTester executable

Lecture 2: Change the Scaling Governor file permissions

Chapter 12: Lab 6: Create a services system app with a Broadcast Receiver

Lecture 1: Extend the Application class

Lecture 2: Create a Broadcast Receiver to handle external requests

Lecture 3: Defne a persistent Android App in AndroidManifest.xml

Lecture 4: Create a strings.xml resources file

Lecture 5: Define an Android App module in Android.bp

Lecture 6: Set SELinux rules for the system app

Lecture 7: Test the services app by sending a broadcast

Chapter 13: Lab 7: Add Activity Control UI to the Platform app

Lecture 1: Create the resource files

Lecture 2: Extend the Activity class

Lecture 3: Add the activity to the AndroidManifest.xml file

Lecture 4: Test the Activity

Chapter 14: Lab 8: Debugging Tools

Lecture 1: Forcing a crash and using llvm-addr2line

Lecture 2: Debugging native service with lldb

Instructors

Gil Zhaiek
Android OS Instructor

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2 stars: 1 votes

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4 stars: 5 votes

5 stars: 8 votes

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