private - 0.6 - beta 

Private is a kernel module which tries to implement 4.4BSD like 
securelevels as a Linux Security Module.
You have the control over ptrace(), file permissions, module loading/
unloading, changing system time, readonly filesystem mounting much like 
in the original securelevels know on BSD.

This is a beta version thus there aren't all BSD securelevel features 
implemented. If you know of any feature which you would like to 
see in a next release, write me a mail.
It means aswell that the code is not cleaned up...


- Prerequisite

You need a linux 2.5.x/2.6.x kernel with sysfs and LSM support to 
be able to use this module

- How to install

. mv the private folder to <kernel source>/security/
. patch the <kernel source>/security/Makefile with the patch given in the
  private directory
. goto <kernel source> and rebuild the kernel
. the module is located at <kernel source>/security/private/priv_plug.ko

- How to control this module

You should download the 'levelctrl' package aswell. It compiles policies 
for the private module and is able to get and raise securelevels.
You can get it from www.drugphish.ch/~jonny.

- Keep in mind

Private does not inherit the restrictions from a preceding securelevel to
the next. If you want raising strictness with each level you have to 
configure it that way.

- Bug reports

..are welcome. Send them to jonny@drugphish.ch.
I appreciate any testing.


Thanks to Serge Hallyn's DTE security module where I adopted some ideas of the
sysfs implementation.

tested on 2.6.0-test3.
published under GPLv2.