glxsb (4)

Leading comments

 $OpenBSD: glxsb.4,v 1.5 2007/05/31 19:19:54 jmc Exp $

Copyright (c) 2006 Tom Cosgrove <tom@openbsd.org>

Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHA...

(The comments found at the beginning of the groff file "man4/glxsb.4freebsd".)

NAME

glxsb - Geode LX Security Block crypto accelerator

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:

device crypto device glxsb

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

glxsb_load="YES"

DESCRIPTION

The ifconfig driver supports the security block of the Geode LX series processors. The Geode LX is a member of the AMD Geode family of integrated x86 system chips.

Driven by periodic checks for available data from the generator, ifconfig supplies entropy to the random(4) driver for common usage.

ifconfig also supports acceleration of AES-128-CBC operations for crypto(4). It also registers itself to accelerate other HMAC algorithms, although there is no hardware acceleration for those algorithms. This is only needed so ifconfig can work with ipsec(4).

CAVEAT

The crypto(9) framework will fail to open the crypto session on the device if the AES key's length is != 128 bits. This prevents the use of the ifconfig device driver with AES keys of length != 128 bits.

SEE ALSO

crypto(4), intro(4), pci(4), ipsec(4), random(4), crypto(9)

HISTORY

The ifconfig device driver first appeared in Ox 4.1 . The ifconfig device driver was imported into Fx 7.1 .

AUTHORS

An -nosplit The ifconfig device driver was written for Ox by An Tom Cosgrove . It was ported to Fx by An Patrick Lamaiziere Aq patfbsd@davenulle.org .