Mabinogion

Industrial Protocol Simulator Server

"Spawn protocols at will"

What is Mabinogion?

Mabinogion is an industrial protocol simulator server written in Rust. It creates virtual devices that speak real industrial protocols, allowing you to develop and test client software without physical hardware.

Why Use It?

• No Hardware Required: Simulate PLCs, sensors, and building automation systems
• Realistic Testing: Virtual devices respond exactly like real equipment
• Scale Testing: Spawn 10,000+ devices to stress test your client
• Chaos Engineering: Inject network delays, packet loss, and device failures

The Name

Mabinogion comes from Welsh mythology — ancient tales of magical forges where legendary weapons were crafted.

Your protocol clients are forged here too.

And yes, I spent way too many hours playing Mabinogi back in the day.

Quick Example

# Start a Modbus server with 10 virtual devices
mabi modbus --port 5020 --devices 10

# Connect with any Modbus client
mbpoll -a 1 -r 1 -c 10 -p 5020 127.0.0.1

Installation

For Simulator Users (Recommended)

cargo install mabi-cli

All protocols, scenario engine, and chaos engineering built-in.

For Library Developers (Optional)

[dependencies]
mabi-core = "1.0"        # Core abstractions (required)
mabi-modbus = "1.0"      # Modbus TCP/RTU (optional)
mabi-opcua = "1.0"       # OPC UA (optional)
mabi-bacnet = "1.0"      # BACnet/IP (optional)
mabi-knx = "1.0"         # KNXnet/IP (optional)
mabi-scenario = "1.0"    # Scenario engine (optional)
mabi-chaos = "1.0"       # Chaos engineering (optional)

Quick Start

mabi modbus --port 502 --devices 10 --points 100
mabi opcua --port 4840 --nodes 1000
mabi bacnet --port 47808 --instance 1234
mabi knx --port 3671 --address 1.1.1
mabi run scenario.yaml --time-scale 2.0 --duration 10m

Documentation

All detailed documentation lives in the docs/ directory. Each module has a comprehensive guide covering architecture, API reference, configuration, and usage examples.

Protocol Simulators

Core & Infrastructure

API Reference

Crate	crates.io	docs.rs
mabi-core		docs.rs
mabi-modbus		docs.rs
mabi-opcua		docs.rs
mabi-bacnet		docs.rs
mabi-knx		docs.rs
mabi-scenario		docs.rs
mabi-chaos		docs.rs
mabi-cli		docs.rs

Performance Targets

Project Structure

mabinogion/
├── crates/
│   ├── mabi-core/       # Core abstractions and utilities
│   ├── mabi-modbus/     # Modbus TCP/RTU simulator
│   ├── mabi-opcua/      # OPC UA server simulator
│   ├── mabi-bacnet/     # BACnet/IP simulator
│   ├── mabi-knx/        # KNXnet/IP simulator
│   ├── mabi-scenario/   # Scenario engine
│   ├── mabi-chaos/      # Chaos engineering
│   └── mabi-cli/        # CLI (mabi)
├── docs/                # Detailed documentation
├── scenarios/           # Scenario files
└── tests/               # Integration/E2E tests

Development

cargo build --workspace          # Build
cargo test --workspace           # Full test suite
cargo test --test integration_tests   # Integration tests
cargo test --test e2e_protocol_tests  # E2E tests
cargo bench                      # Benchmarks

Requirements: Rust 1.75+, Tokio async runtime

License

Licensed under the Apache License, Version 2.0.

_{"Your protocols are forged in the crucible of mythology"}