Archive for December, 2008

Mech Heat Tracker

As my application for the MechWarior: Living Legends Crysis Mod (which was successful, btw ;) ), I had to implement a Mech Heat Tracker. I was given a template to work from—a class with a couple of method and attribute declarations—and had to work out the implementation details all by myself. I was only given a few instructions (see MechHeatTracker.h).

Basically, this is a simulation of a two-legged combat vehicle called ‘BattleMech’ (in short ‘Mech) which generates lots of heat while fighting. ‘Mechs are equipped with heat sinks to dissipate the excessing heat they are generating. When the excess heat is just too much the heat sinks to cope with they can flush coolant to increase their cooling rate, as long as the coolant tanks don’t run out of it. Heat sink’s effectiveness is affected by the environment (they have a harder time to dissipate heat in the sahara as they would have at the north pole). Also, if the heat exceeds a certain threshold, the heat sinks may take some damage—when they are, their effectiveness is affected.

You can take a look at my implementation by downloading the source files given in the download links below. I’ve also created a little test program (Windows binary), which just generates some random input data for the Mech Heat Tracker and prints the results to the console.

Download
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Security mechanisms in Linux

In my 4th Semester, I have written an introduction on Linux security mechanisms on application level. This introduction covers topics like Access Control techniques, hardening the linux kernel, the LSM Framework, SELinux and AppArmor, as well as Ruleset Based Access Control.

I want to emphasize that this work is only an introduction on the topic and therefore does not contain manuals or step-by-step tutorials on how to set those features up, rather explaining how they work as well as elaborating their advantages and disadvantages.

Disclaimer

This document was completely written in german. There is no english version available. It was written to the best of my knowledge, though I can’t guarantee it’s perfectly free of errors.

Download
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