CyberBoat
  • CyberBoat HomePage
  • About the Project
  • Attack Surface of Ships
    • NMEA2000 and CAN Bus
  • CyberBoat
    • CyberBoat Overview
    • Components
    • Datasheet and Manuals
    • NMEA T Connector
      • T Connector Instructions
      • ESP32 Firmware
        • Issues I've had that may come up again
      • Firmware-WASM API
      • WASM Application
        • NMEA PGNS
      • ESP-IDF Resources
        • FreeRTOS
        • ESP-IDF Debugging Tips
      • WAMR Resources
        • Building iwasm VM core for your ESP archtitecture
      • NMEA Firehose Device
    • Control
      • Materials and Wiring
      • Autopilot Setup
        • OpenPlotter / Pypilot setup
          • Installing on Ubuntu 22.04
          • OUTDATED - Installing as a RasbPi Image
      • Controller Setup
      • Connect Raspberry Pi to NMEA2000 network
      • OpenCPN Setup
      • Manual Operation
        • Notes about the Arduino Code
    • Ship to Shore Communication Set Up
      • Wired Connection between Pi and a linux computer
    • Boat Design
    • Start-Up Guide
    • Attack Demonstrations
    • Remaining Work
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  • lib.rs
  • Attack Modes
  1. CyberBoat
  2. NMEA T Connector

WASM Application

PreviousFirmware-WASM APINextNMEA PGNS

Last updated 1 year ago

The WASM Application can be found in .

lib.rs

Contains functions called by the firmware.

main()

  • Reads a message from the message buffer, reads the attack mode from the attack mode buffer.

  • Based on the mode, either sends no messages, sends all messages without modifying them, or modifies messages for GPS attacks. When sending messages, messages received on controller 0 are sent to controllers 1 and 2, messages received on controller 1 are sent to controllers 0 and 2, and messages received on controller 2 are sent to controllers 0 and 1.

Attack Modes

Attack modes are currently set from the script running on the Pi. The script sets controls 2 pins connected to 2 pins on the ESP32.

1. OFF

Stops transmission off all messages passing through the T connector.

2. PASSIVE

This is the default mode. Sends all messages through without modifying them.

3. OPPOSITE DIRECTION ATTACK

Shows the boat moving in the opposite direction of real movement. Flips heading by 180 degrees.

4. TRANSLATION ATTACK

Translates the current position by a constant latitude and longitude. Heading remains the same.

nmea_attack
nmea_t_modes.py