142 lines
4.8 KiB
Groff
142 lines
4.8 KiB
Groff
.\" Copyright (c) 1996-1999 Whistle Communications, Inc.
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.\" All rights reserved.
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.\"
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.\" Subject to the following obligations and disclaimer of warranty, use and
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.\" redistribution of this software, in source or object code forms, with or
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.\" without modifications are expressly permitted by Whistle Communications;
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.\" provided, however, that:
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.\" 1. Any and all reproductions of the source or object code must include the
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.\" copyright notice above and the following disclaimer of warranties; and
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.\" 2. No rights are granted, in any manner or form, to use Whistle
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.\" Communications, Inc. trademarks, including the mark "WHISTLE
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.\" COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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.\" such appears in the above copyright notice or in the software.
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.\"
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.\" THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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.\" TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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.\" REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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.\" INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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.\" WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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.\" REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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.\" SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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.\" IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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.\" RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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.\" WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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.\" PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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.\" SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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.\" OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\" $Whistle: ngctl.8,v 1.6 1999/01/20 03:19:44 archie Exp $
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.\"
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.Dd January 19, 1999
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.Dt NGCTL 8
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.Os
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.Sh NAME
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.Nm ngctl
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.Nd netgraph control utility
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.Sh SYNOPSIS
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.Nm
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.Op Fl d
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.Op Fl f Ar filename
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.Op Fl n Ar nodename
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.Op Ar command ...
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.Sh DESCRIPTION
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The
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.Nm
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utility creates a new netgraph node of type
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.Em socket
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which can be used to issue netgraph commands.
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If no
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.Fl f
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flag is given, no
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command is supplied on the command line, and standard input is a tty,
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.Nm
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will enter interactive mode.
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Otherwise
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.Nm
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will execute the supplied command(s) and exit immediately.
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.Pp
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Nodes can be created, removed, joined together, etc.
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.Tn ASCII
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formatted control messages can be sent to any node if that node
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supports binary/ASCII control message conversion.
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.Pp
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In interactive mode,
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.Nm
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will display any control messages and data packets received by the socket node.
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In the case of control messages, the message arguments are displayed in
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.Tn ASCII
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form if the originating node supports conversion.
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl f Ar nodeinfo
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Read commands from the named file.
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A single dash represents the standard input.
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Blank lines and lines starting with a
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.Dq #
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are ignored.
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.It Fl n Ar nodename
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Assign
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.Em nodename
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to the newly created netgraph node.
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The default name is
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.Em ngctlXXX
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where XXX is the process ID number.
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.It Fl d
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Increase the debugging verbosity level.
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.El
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.Sh COMMANDS
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The currently supported commands in
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.Nm
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are:
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.Pp
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.Bd -literal -offset indent -compact
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config get or set configuration of node at <path>
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connect Connects hook <peerhook> of the node at <relpath> to <hook>
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debug Get/set debugging verbosity level
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dot Produce a GraphViz (.dot) of the entire netgraph.
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help Show command summary or get more help on a specific command
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list Show information about all nodes
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mkpeer Create and connect a new node to the node at "path"
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msg Send a netgraph control message to the node at "path"
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name Assign name <name> to the node at <path>
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read Read and execute commands from a file
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rmhook Disconnect hook "hook" of the node at "path"
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show Show information about the node at <path>
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shutdown Shutdown the node at <path>
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status Get human readable status information from the node at <path>
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types Show information about all installed node types
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write Send a data packet down the hook named by "hook".
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quit Exit program
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.Ed
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.Pp
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Some commands have aliases, e.g.,
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.Dq ls
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is the same as
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.Dq list .
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The
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.Dq help
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command displays the available
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commands, their usage and aliases, and a brief description.
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.Sh DIAGNOSTICS
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.Ex -std
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.Sh SEE ALSO
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.Xr netgraph 3 ,
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.Xr netgraph 4 ,
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.Xr nghook 8
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.Sh HISTORY
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The
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.Nm netgraph
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system was designed and first implemented at Whistle Communications, Inc.\& in
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a version of
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.Fx 2.2
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customized for the Whistle InterJet.
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.Sh AUTHORS
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.An Archie Cobbs Aq archie@whistle.com
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