14cf49a43SJulian Elischer.\" Copyright (c) 1996-1999 Whistle Communications, Inc. 24cf49a43SJulian Elischer.\" All rights reserved. 34cf49a43SJulian Elischer.\" 44cf49a43SJulian Elischer.\" Subject to the following obligations and disclaimer of warranty, use and 54cf49a43SJulian Elischer.\" redistribution of this software, in source or object code forms, with or 64cf49a43SJulian Elischer.\" without modifications are expressly permitted by Whistle Communications; 74cf49a43SJulian Elischer.\" provided, however, that: 84cf49a43SJulian Elischer.\" 1. Any and all reproductions of the source or object code must include the 94cf49a43SJulian Elischer.\" copyright notice above and the following disclaimer of warranties; and 104cf49a43SJulian Elischer.\" 2. No rights are granted, in any manner or form, to use Whistle 114cf49a43SJulian Elischer.\" Communications, Inc. trademarks, including the mark "WHISTLE 124cf49a43SJulian Elischer.\" COMMUNICATIONS" on advertising, endorsements, or otherwise except as 134cf49a43SJulian Elischer.\" such appears in the above copyright notice or in the software. 144cf49a43SJulian Elischer.\" 154cf49a43SJulian Elischer.\" THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 164cf49a43SJulian Elischer.\" TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 174cf49a43SJulian Elischer.\" REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 184cf49a43SJulian Elischer.\" INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 194cf49a43SJulian Elischer.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 204cf49a43SJulian Elischer.\" WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 214cf49a43SJulian Elischer.\" REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 224cf49a43SJulian Elischer.\" SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 234cf49a43SJulian Elischer.\" IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 244cf49a43SJulian Elischer.\" RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 254cf49a43SJulian Elischer.\" WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 264cf49a43SJulian Elischer.\" PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 274cf49a43SJulian Elischer.\" SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 284cf49a43SJulian Elischer.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 294cf49a43SJulian Elischer.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 304cf49a43SJulian Elischer.\" THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 314cf49a43SJulian Elischer.\" OF SUCH DAMAGE. 324cf49a43SJulian Elischer.\" 33eddc45e7SJeroen Ruigrok van der Werven.\" Author: Archie Cobbs <archie@FreeBSD.org> 344cf49a43SJulian Elischer.\" 354cf49a43SJulian Elischer.\" $FreeBSD$ 364cf49a43SJulian Elischer.\" $Whistle: ng_hole.8,v 1.4 1999/01/25 23:46:26 archie Exp $ 374cf49a43SJulian Elischer.\" 384cf49a43SJulian Elischer.Dd January 19, 1999 39bec35b9aSArchie Cobbs.Dt NG_HOLE 4 403d45e180SRuslan Ermilov.Os 414cf49a43SJulian Elischer.Sh NAME 424cf49a43SJulian Elischer.Nm ng_hole 434cf49a43SJulian Elischer.Nd netgraph discard node type 444cf49a43SJulian Elischer.Sh SYNOPSIS 454cf49a43SJulian Elischer.Fd #include <netgraph/ng_hole.h> 464cf49a43SJulian Elischer.Sh DESCRIPTION 474cf49a43SJulian ElischerThe 484cf49a43SJulian Elischer.Nm hole 494cf49a43SJulian Elischernode type silently discards all data and control messages it receives. 504cf49a43SJulian ElischerThis type is used for testing and debugging. 514cf49a43SJulian Elischer.Sh HOOKS 5251291597SJulian ElischerA 5351291597SJulian Elischer.Nm 5451291597SJulian Elischernode accepts any request to connect, regardless of the hook name, 554cf49a43SJulian Elischeras long as the name is unique. 564cf49a43SJulian Elischer.Sh CONTROL MESSAGES 574cf49a43SJulian ElischerThis node type supports only the generic control messages. 584cf49a43SJulian ElischerOther control messages are silently discarded. 594cf49a43SJulian Elischer.Sh SHUTDOWN 604cf49a43SJulian ElischerThis node shuts down upon receipt of a 614cf49a43SJulian Elischer.Dv NGM_SHUTDOWN 624cf49a43SJulian Elischercontrol message, or when all hooks have been disconnected. 634cf49a43SJulian Elischer.Sh SEE ALSO 644cf49a43SJulian Elischer.Xr netgraph 4 , 65bec35b9aSArchie Cobbs.Xr ng_echo 4 , 66bec35b9aSArchie Cobbs.Xr ngctl 8 6751291597SJulian Elischer.Sh HISTORY 6851291597SJulian ElischerThe 6951291597SJulian Elischer.Nm 7051291597SJulian Elischernode type was implemented in 7151291597SJulian Elischer.Fx 4.0 . 7251291597SJulian Elischer.Sh AUTHORS 73eddc45e7SJeroen Ruigrok van der Werven.An Julian Elischer Aq julian@FreeBSD.org 74