1.\" $NetBSD: secmodel_overlay.9,v 1.6 2014/03/18 18:20:40 riastradh Exp $ 2.\" 3.\" Copyright (c) 2006 Elad Efrat <elad@NetBSD.org> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. The name of the author may not be used to endorse or promote products 15.\" derived from this software without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.Dd September 15, 2006 29.Dt SECMODEL_OVERLAY 9 30.Os 31.Sh NAME 32.Nm secmodel_overlay 33.Nd sample overlay security model implementation 34.Sh SYNOPSIS 35.In secmodel/overlay/overlay.h 36.Sh DESCRIPTION 37.Nm 38is a sample implementation for an overlay security model. 39It can be thought of as a 40.Dq filter 41for the underlying model it overlays, by default it is 42.Xr secmodel_bsd44 9 , 43where developers or administrators can implement custom policies using 44least intrusive code changes. 45.Sh CODE REFERENCES 46.Pa sys/secmodel/overlay/secmodel_overlay.c 47.Sh SEE ALSO 48.Xr kauth 9 , 49.Xr secmodel 9 , 50.Xr secmodel_bsd44 9 51.Sh AUTHORS 52.An Elad Efrat Aq Mt elad@NetBSD.org 53