| ng_bpf.4 (79538) | ng_bpf.4 (79727) |
|---|---|
| 1.\" Copyright (c) 1999 Whistle Communications, Inc. 2.\" All rights reserved. | 1.\" Copyright (c) 1999 Whistle Communications, Inc. 2.\" All rights reserved. |
| 3.\" | 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. | 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.\" | 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. | 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.\" | 32.\" |
| 33.\" Author: Archie Cobbs <archie@FreeBSD.org> 34.\" | 33.\" Author: Archie Cobbs <archie@FreeBSD.org> 34.\" |
| 35.\" $FreeBSD: head/share/man/man4/ng_bpf.4 79538 2001-07-10 15:31:11Z ru $ | 35.\" $FreeBSD: head/share/man/man4/ng_bpf.4 79727 2001-07-14 19:41:16Z schweikh $ |
| 36.\" $Whistle: ng_bpf.8,v 1.2 1999/12/03 01:57:12 archie Exp $ 37.\" 38.Dd December 2, 1999 39.Dt NG_BPF 4 40.Os 41.Sh NAME 42.Nm ng_bpf 43.Nd Berkeley packet filter netgraph node type --- 86 unchanged lines hidden (view full) --- 130except that the statistics are also atomically cleared. 131.El 132.Sh SHUTDOWN 133This node shuts down upon receipt of a 134.Dv NGM_SHUTDOWN 135control message, or when all hooks have been disconnected. 136.Sh EXAMPLES 137It is possible to configure a node from the command line, using | 36.\" $Whistle: ng_bpf.8,v 1.2 1999/12/03 01:57:12 archie Exp $ 37.\" 38.Dd December 2, 1999 39.Dt NG_BPF 4 40.Os 41.Sh NAME 42.Nm ng_bpf 43.Nd Berkeley packet filter netgraph node type --- 86 unchanged lines hidden (view full) --- 130except that the statistics are also atomically cleared. 131.El 132.Sh SHUTDOWN 133This node shuts down upon receipt of a 134.Dv NGM_SHUTDOWN 135control message, or when all hooks have been disconnected. 136.Sh EXAMPLES 137It is possible to configure a node from the command line, using |
| 138.Xr tcpdump 1 | 138.Xr tcpdump 1 |
| 139to generate raw BPF instructions which are then fed into an 140.Xr awk 1 141script to create the ASCII form of a 142.Dv NGM_BPF_SET_PROGRAM 143control message, as demonstrated here: 144.Bd -literal -offset 4n 145#!/bin/sh 146 --- 46 unchanged lines hidden --- | 139to generate raw BPF instructions which are then fed into an 140.Xr awk 1 141script to create the ASCII form of a 142.Dv NGM_BPF_SET_PROGRAM 143control message, as demonstrated here: 144.Bd -literal -offset 4n 145#!/bin/sh 146 --- 46 unchanged lines hidden --- |