AOSP Device Policy Service (Simulation)

A modular Android framework project demonstrating how system services can be designed, exposed, and consumed using AOSP-inspired architecture.

🎯 Overview

This project models a policy-driven system service similar to Android’s DevicePolicyManager, using a layered architecture to separate framework APIs, service logic, and policy enforcement.

🏗️ Architecture

App (demo-app)
   ↓
DevicePolicyManagerCustom (Framework API)
   ↓
IDevicePolicyCustom (Interface)
   ↓
DevicePolicyCustomService (System Service)
   ↓
PolicyEngine (Core Logic)

🔧 Key Components

• DevicePolicyManagerCustom Framework-facing API for applications (similar to getSystemService() pattern)

• DevicePolicyCustomService Core service layer handling requests and coordinating policy execution

• PolicyEngine Centralized logic for policy management and enforcement

• IDevicePolicyCustom Interface layer simulating AIDL-based communication

• SystemServerSimulation Simulates Android service initialization lifecycle

⚙️ Features

• WiFi policy control (simulated)
• Bluetooth policy control (simulated)
• Extensible policy-based architecture

🔄 Execution Flow

App → Manager → Service → PolicyEngine

Policy updates are processed through layered abstraction, ensuring clear separation between API, service, and logic layers.

🎯 Key Concepts Demonstrated

• System service design patterns
• Layered architecture (Framework → Service → Logic)
• Interface-driven communication (AIDL-inspired)
• Modular and extensible system design

⚠️ Note

Binder (AIDL) communication is simulated using interfaces to focus on architectural design rather than IPC implementation.

🚀 Future Enhancements

• Binder/AIDL integration
• Permission and security enforcement
• Multi-client handling
• Advanced policy controls (kiosk mode, app restrictions)

👨‍💻 Author

Jagdish Bhavsar Technical Lead – Android | AOSP | IoT | System-Level Design

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