https://github.com/fpletz/kernelroll

linux kernel module for advanced rickrolling
https://github.com/fpletz/kernelroll

Last synced: about 2 months ago
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linux kernel module for advanced rickrolling

• Host: GitHub
• URL: https://github.com/fpletz/kernelroll
• Owner: fpletz
• License: gpl-3.0
• Created: 2011-09-07T23:00:02.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2011-09-09T23:35:30.000Z (over 13 years ago)
• Last Synced: 2023-11-07T15:14:51.572Z (about 1 year ago)
• Language: C
• Homepage:
• Size: 138 KB
• Stars: 215
• Watchers: 6
• Forks: 24
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Putting rickrolling in kernel space

Kernelroll is a linux kernel module for advanced rickrolling.

It works by patching the open() system call to open a specified music file

instead of other music files. Currently, it only checks if the file extension

"mp3" is present and calls the original open() with the supplied path

instead.

WARNING: There is probably a performance penalty and your kernel might crash

at a very inappropriate time and cause data loss! You are responsible for

the code you load into your kernel!

But most probably, it will be alright! ;)

# Installation

You need the address of sys_call_table in your kernel. Use

    $ grep sys_call_table /boot/System.map-3.0.0-1-amd64

    ffffffff81400300 R sys_call_table

on the respective System.map of your kernel to find out the address

Now fire up kernelroll.c and add yours:

    void **sys_call_table = (void **)0xffffffff81400300;

This will probably be simplified in the future, but as sys_call_table isn't

exported anymore in 2.6 kernels, we have to use some tricks.

Compile with:

    $ make

Load with:

    $ insmod kernelroll.ko rollfile=/path/to/rickroll.mp3

Fire up a music player of your choice, play a song and consider yourself

kernelrolled. ;)