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IVNPROTECT: Isolable and Traceable Lightweight CAN-Bus Kernel-Level Protection for Securing In-Vehicle Communication

Shuji Ohira, Araya Kibrom Desta, Ismail Arai, Kazutoshi Fujikawa, "IVNPROTECT: Isolable and Traceable Lightweight CAN-Bus Kernel-Level Protection for Securing In-Vehicle Communication," In Proceedings of the 9th International Conference on Information Systems Security and Privacy (ICISSP 2023), pp.17–28, Feb. 2023.

@inproceedings{ohira2022ivnprotect,
  title={{IVNPROTECT: Isolable and Traceable Lightweight CAN-Bus Kernel-Level Protection for Securing In-Vehicle Communication}},
  author={Ohira, Shuji and Araya, Kibrom Desta and Arai, Ismail and Fujikawa, Kazutoshi},
  booktitle={In Proceedings of the 9th International Conference on Information Systems Security and Privacy (ICISSP 2023)},
  pages={17--28},
  year={2023},
  doi={10.5220/0011605300003405}
}

Introduction

Linux kernel version

5.10.y

Required Hardware

  • Raspberry Pi Model B or B+
  • PiCAN 2 Board

Install

At first, you should write Raspberry Pi OS (bullseye) image to your microSD card.
After that, you can build our protection mechanism with following commands.

Download kernel source and kernel headers, and build our kernel module

$ sudo apt update  
$ sudo apt install git bc bison flex libssl-dev python2 libncurses5-dev  
$ sudo wget https://raw.githubusercontent.com/RPi-Distro/rpi-source/master/rpi-source -O /usr/local/bin/rpi-source && sudo chmod +x /usr/local/bin/rpi-source && /usr/local/bin/rpi-source -q --tag-update  
$ rpi-source  
  
$ git clone https://github.com/shuji-oh/ivnprotect  
$ cd ivnprotect/mcp251x_ivnprotect  
$ make  
$ sudo rmmod mcp251x  
$ sudo insmod mcp251x_ivnprotect.ko

Enable PiCAN board

$ sudo vi /boot/config.txt  
dtparam=spi=on  
dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=25  
dtoverlay=spi-bcm2835-overlay  
$ sudo ip link set can0 up type can bitrate 500000  
$ ifconfig can0

Extend can interface's txqueue length

The default tx queue length is 10. So, we need to increase the length to 10000 (example).

$ sudo ifconfig can0 txqueuelen 10000

Build our kernel module for debugging

$ cd ivnprotect/mcp251x_ivnprotect  
$ make debug  
$ sudo rmmod mcp251x  
$ sudo insmod mcp251x_ivnprotect.ko