udslib

Memory-safe C framework for building UDS sessions, lookup tables, and security access across any communication protocol - namely ISO-TP.

While UDS is typically used in a CAN/LIN bus environment with ISO-TP, this abstraction allows the same diagnostic procedures to be implemented with other protocols like TCP/IP + BLE without rewriting diagnostic code.

Important

This library solely focuses on implementation of the UDS protocol. As UDS is often implemented alongside ISO-TP, this library was designed to integrate seamlessly with isotplib.

🚀 Features

• UDS session management
• Sending requests:
  • Standard services provided
  • Extremely easy to implement proprietary services
• Pure C, platform agnostic with C++/Arduino compatibility
• No dynamic code allocation required
• Tight scope, no bloat

⚡️ Advanced Features

• Handling requests:
  • Easily build resource lookup tables:
    • Services
    • Local IDs
    • Functions
  • Manage security access to resources easily
  • Readable and easy to implement
• Multiple concurrent sessions
• Peek at multi-packet data before full transfer completion
• Optional user-defined dynamic memory allocation

✏️ Usage

• See examples/ for functioning code examples (command line & microcontroller)
• See Implementation for generic implementation directions