Lines Matching +full:ascii +full:. +full:d

1 .\" Copyright (c) 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_bpf.4,v 1.17.2.1 2001/12/21 09:00:51 ru Exp $
36 .\" $Whistle: ng_bpf.8,v 1.2 1999/12/03 01:57:12 archie Exp $
37 .\"
52 filters to be applied to data travelling through a Netgraph network.
54 named hooks.  With each hook is associated a
58 and various statistics counters.
63 the length of the prefix of the packet to return.  In the context of this
65 entire packet is delivered out the non-match destination hook.
67 to that length and delivered out the match destination hook.
69 not exist, in which case the packet is dropped.
71 New hooks are initially configured to drop all packets.
74 control message.
76 This node type supports any number of hooks having arbitrary names.
82 data on a hook.  The following structure must be supplied as an argument:
94 .Dv thisHook .
99 of them.
104 respectively.  The program must be a valid
108 is returned.
111 .Tn ASCII
115 as shown above.
118 .Tn ASCII
121 .Dv "struct ng_bpf_hookstat" .
124 .Tn ASCII
126 statistics associated with the hook.
130 except that the statistics are also atomically cleared.
135 control message, or when all hooks have been disconnected.
141 script to create the ASCII form of a
153 cat > /tmp/bpf.awk << xxENDxx
156     printf "bpf_prog_len=%d bpf_prog=[", \\$1;
159     printf " { code=%d jt=%d jf=%d k=%d }", \\$1, \\$2, \\$3, \\$4;
167 BPFPROG=`tcpdump -s 8192 -ddd ${PATTERN} | awk -f /tmp/bpf.awk`
182 .Fx 4.0 .
184 .An Archie Cobbs Aq Mt archie@FreeBSD.org
187 .Pa net/bpf_filter.c .
189 .Pa net/bpf_filter.c
191 copies of the file do not interfere.
192 However, this may change in the future.