logging-dlt

Documentation

DLT Autosar Specification

A python logging adapter for "diagnostic log and trace" protocol.

Description

The goal of this project is to provide a way to route the proprietary dlt protocol into the python logging framework. This is done by using a logging adapter together with a dlt stream parser.

DLT protocol

DLT (Diagnostic Log and Trace) is a proprietary logging protocol. It is used in debugging automotive ECUs that run Autosar OS.

You should NOT use it if you have the choice!

It has many traps, inconsistencies and architecture dependencies. In the field it does overflow its own stream buffer, corrupting data on the wire. It causes endianess problems, e.g. use big endian even if it announced little endian a few bytes before ( Proof 1, 2 ) etc.

It is clear that it did not compete against any other logging mechanism or had any trial phase. It was just forged into a standard that is enforced for the Autosar OS.

License

This software is distributed under GPLv3 with some extension because GPLv3 did not manage to deny criminal misuse by organizations. This software is intended for usage by community and private individuals who are interested in car hacking. It is explicitly denied that any company or organization monetizes on this software. Monetize does not only mean money, it means gaining a competitive advantage of any kind by using this software. The author explicitly denies the usage for people associated with military, government agencies of any kind to whatever degree, same for car manufacturers and associates.

Deprecation of PyPi Packages

Packages on PyPi are no longer updated due to attempts of the Python Software Foundation to enforce new rules and basically flush out developers who do not consent.
Recent packages can be installed directly from git, i.e.
pip install git+https://gitlab.com/menschel/logging-dlt.git --upgrade