mushorg
AWL/STL/PLC simulator support
Skills required: Python, programming PLCs (AWL, STL), network programming Short Description: Add support for a AWL/STL/PLC simulator. Goals is to run AWL/STL programs in Conpot and allow communication with the PLC emulator. Description: Conpot supports the protocols a common PLC is providing but not the functionality of a PLC. This means besides some randomized values and linear incrementing values like uptime the data in the honeypot is static. In order to appear more realistic and handle input values properly, we would like to support a PLC simulator. A good candidate is Awlsim (http://bues.ch/cms/hacking/awlsim.html): Awlsim is a free Step 7 compatible AWL/STL Soft-PLC written in Python. Awlsim provides an interface for virtual hardware connection modules (currently available are PROFIBUS-DP and LINUX-CNC). This interface could be used to connect Awlsim to Conpot. Maybe we could add an I/O interface to it in order to retrieve and even inject data to a running simulation.
This looks very powerful. Did you had a look at his network emulation? I just skimmed through the tests and it seems like he emulates network interfaces.
To be honest, I could not find any hint on network emulation yet, but this is great news.
I think I was mistaken. It actually seems like there is no intended interaction...
Note to myself: glaslos found awlsim profibus support: https://github.com/mbuesch/awlsim/blob/master/awlsimhw_pyprofibus/main.py
Seems like the easiest way to interact with awlsim is by writing our own hardware extension: https://github.com/mbuesch/awlsim/blob/master/awlsimhw_dummy/main.py
@creolis Did you got a quote on how relevant this is? I remember you mentioning that this might not be state of the art anymore (not sure if you can ever say something like that in the ICS domain...)
Some initial work on the AWLSim TCP module: https://github.com/glastopf/awlsim/blob/hw_tcp/awlsimhw_tcp/main.py