f8307e1233
NGM_BINARY2ASCII, which convert control messages to ASCII and back. This allows control messages to be sent and received in ASCII form using ngctl(8), which makes ngctl a lot more useful. This also allows all the type-specific debugging code in libnetgraph to go away -- instead, we just ask the node itself to do the ASCII translation for us. Currently, all generic control messages are supported, as well as messages associated with the following node types: async, cisco, ksocket, and ppp. See /usr/share/examples/netgraph/ngctl for an example of using this. Also give ngctl(8) the ability to print out incoming data and control messages at any time. Eventually nghook(8) may be subsumed. Several other misc. bug fixes. Reviewed by: julian
128 lines
4.6 KiB
Groff
128 lines
4.6 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 FreeBSD 3
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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 ngctl
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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 ngctl
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will enter interactive mode. Otherwise
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.Nm ngctl
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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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ASCII 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 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 ``#'' 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. 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 ngctl
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are:
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.Pp
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.Bd -literal -offset indent -compact
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connect Connects two nodes
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debug Get/set debugging verbosity level
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help Show command summary or get help on a command
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list Show information about all nodes
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mkpeer Create and connect a new node to an existing node
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msg Send an ASCII formatted message to a node
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name Assign a name to a node
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read Read and execute commands from a file
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rmhook Disconnect a node's hook
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show Show information about a node
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shutdown Shutdown a node
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status Get human readable status from a node
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types Show all installed node types
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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., ``ls'' is the same as ``list''.
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The ``help'' command displays the available
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commands, their usage and aliases, and a brief description.
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.Sh EXIT VALUE
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The
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.Nm
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utility exits 0 on success, and >0 if an error occurs.
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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 AUTHOR
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Archie Cobbs <archie@whistle.com>
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.Sh HISTORY
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The
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.Em netgraph
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system was designed and first implemented at Whistle Communications, Inc. in
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a version FreeBSD 2.2 customized for the Whistle InterJet.
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