[src/netbsd-1-5]: src/sbin/rndctl revised rndctl which can display pool stati...

[sommerfeld <sommerfeld%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f58cddaf51eb
branches:  netbsd-1-5
changeset: 488178:f58cddaf51eb
user:      sommerfeld <sommerfeld%NetBSD.org@localhost>
date:      Tue Jun 20 02:40:11 2000 +0000

description:
revised rndctl which can display pool statistics.

diffstat:

 sbin/rndctl/rndctl.8 |  115 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 115 insertions(+), 0 deletions(-)

diffs (119 lines):

diff -r 76dece5d3be1 -r f58cddaf51eb sbin/rndctl/rndctl.8
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sbin/rndctl/rndctl.8      Tue Jun 20 02:40:11 2000 +0000
@@ -0,0 +1,115 @@
+.\"    $NetBSD: rndctl.8,v 1.6.2.2 2000/06/20 02:40:11 sommerfeld Exp $
+.\"
+.\" Copyright (c) 1997 Michael Graff
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd October 12, 1997
+.Dt RNDCTL 8
+.Os NetBSD
+.Sh NAME
+.Nm rndctl
+.Nd in-kernel random number generator management tool
+.Sh SYNOPSIS
+.Nm
+.Fl CEce
+.Op Fl t Ar devtype
+.Op Fl d Ar devname
+.Nm ""
+.Fl l
+.Op Fl t Ar devtype
+.Op Fl d Ar devname
+.Sh DESCRIPTION
+The
+.Nm
+program displays statistics on the current state of the 
+.Xr rnd 4
+pseudo-driver, and allows the administrator to control which sources
+are allowed to contribute to the randomness pool maintained by 
+.Xr rnd 4 ,
+as well as whether a given source is counts as strongly random.
+.Sh OPTIONS
+The following options are available:
+.Bl -tag -width 123456
+.It Fl C
+Disable collection of timing information for the given
+device name or device type.
+.It Fl c
+Enable collection of timing information for the given
+device name of device type.
+.It Fl E
+Disable entropy estimation from the collected timing information for
+the given device name or device type.  If collection is still enabled,
+timing information is still collected and mixed into the internal
+entropy pool, but no entropy is assumed to be present.
+.It Fl e
+Enable entropy estimation using the collected timing information
+for the given device name or device type.
+.It Fl s
+Display statistics on the current state of the random collection pool.
+.It Fl l
+List all sources, or, if the
+.Fl t
+or
+.Fl d
+flags are specified, only those specified by the
+.Ar devtype
+or
+.Ar devname
+specified.
+.It Fl t
+All devices of type
+.Ar devtype
+are altered or displayed.
+.It Fl d
+Only the device named
+.Ar devname
+is altered or displayed.
+.El
+.Sh WARNINGS
+Turning on entropy estimation from unsafe or predictable sources will
+weaken system security, while turning on entropy collection from such
+sources may weaken system security.
+.Pp
+Care should be taken when using this command.
+.Sh FILES
+.Bl -tag -width /dev/urandomx -compact
+.It Pa /dev/random
+Returns ``good'' values only
+.It Pa /dev/urandom
+Always returns data, degenerates to a pseudo-random generator
+.El
+.Sh HISTORY
+The
+.Nm
+program was first made available in
+.Nx 1.3 .
+.Sh AUTHOR
+The
+.Nm
+program was written by Michael Graff <explorer%flame.org@localhost>.
+.Sh SEE ALSO
+.Xr rnd 4 ,
+.Xr rnd 9