- Uniformly use .In for header file references.
[dragonfly.git] / share / man / man4 / ng_echo.4
CommitLineData
984263bc
MD
1.\" Copyright (c) 1996-1999 Whistle Communications, Inc.
2.\" All rights reserved.
3.\"
4.\" Subject to the following obligations and disclaimer of warranty, use and
5.\" redistribution of this software, in source or object code forms, with or
6.\" without modifications are expressly permitted by Whistle Communications;
7.\" provided, however, that:
8.\" 1. Any and all reproductions of the source or object code must include the
9.\" copyright notice above and the following disclaimer of warranties; and
10.\" 2. No rights are granted, in any manner or form, to use Whistle
11.\" Communications, Inc. trademarks, including the mark "WHISTLE
12.\" COMMUNICATIONS" on advertising, endorsements, or otherwise except as
13.\" such appears in the above copyright notice or in the software.
14.\"
15.\" THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
16.\" TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
17.\" REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
18.\" INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
19.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
20.\" WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
21.\" REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
22.\" SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
23.\" IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
24.\" RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
25.\" WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
26.\" PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
27.\" SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
28.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30.\" THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
31.\" OF SUCH DAMAGE.
32.\"
33.\" Author: Archie Cobbs <archie@FreeBSD.org>
34.\"
35.\" $FreeBSD: src/share/man/man4/ng_echo.4,v 1.10.2.1 2001/12/21 09:00:51 ru Exp $
44cb301e 36.\" $DragonFly: src/share/man/man4/ng_echo.4,v 1.3 2006/05/26 19:39:39 swildner Exp $
984263bc
MD
37.\" $Whistle: ng_echo.8,v 1.4 1999/01/25 23:46:26 archie Exp $
38.\"
39.Dd January 19, 1999
40.Dt NG_ECHO 4
41.Os
42.Sh NAME
43.Nm ng_echo
44.Nd netgraph echo node type
45.Sh SYNOPSIS
44cb301e 46.In netgraph/echo/ng_echo.h
984263bc
MD
47.Sh DESCRIPTION
48The
49.Nm echo
50node type reflects all data and control messages back to the sender.
51This node type is used for testing and debugging.
52.Sh HOOKS
53A
54.Nm echo
55node accepts any request to connect, regardless of the hook name,
56as long as the name is unique.
57.Sh CONTROL MESSAGES
58This node type supports only the generic control messages.
59Any other control messages are reflected back to the sender.
60.Sh SHUTDOWN
61This node shuts down upon receipt of a
62.Dv NGM_SHUTDOWN
63control message, or when all hooks have been disconnected.
64.Sh SEE ALSO
65.Xr netgraph 4 ,
66.Xr ng_hole 4 ,
67.Xr ngctl 8
68.Sh HISTORY
69The
70.Nm
71node type was implemented in
72.Fx 4.0 .
73.Sh AUTHORS
74.An Julian Elischer Aq julian@FreeBSD.org