This set of patches implements BSD Secure Levels as a Linux Security
Module (LSM).

The purpose of this patch is to leverage the LSM hook infrastructure
to provide administrators who are already familiar with BSD Secure
Levels the option of using a simple protection mechanism on their
Linux servers.  By using this module, those administrators who require
the security provided by BSD Secure Levels do not have to deal with
the complexity of deploying a capabilities- or SE Linux-based
mandatory access control solution.

Sys Admin Magazine is carrying an article about this module in its
September issue:

http://www.samag.com/documents/s=9304/sam0409a/0409a.htm

This particular patch adds a set of hooks that are necessary to catch
attempts to decrement the system time.  These hooks do not restrict
hardware devices that perform this operation, such as in
drivers/acorn/char/i2c.c.

Mike
.___________________________________________________________________.
                         Michael A. Halcrow                          
       Security Software Engineer, IBM Linux Technology Center       
GnuPG Fingerprint: 05B5 08A8 713A 64C1 D35D  2371 2D3C FDDA 3EB6 601D