1
2/*
3 * ng_tee.h
4 *
5 * Copyright (c) 1996-1999 Whistle Communications, Inc.
6 * All rights reserved.
7 *
8 * Subject to the following obligations and disclaimer of warranty, use and
9 * redistribution of this software, in source or object code forms, with or
10 * without modifications are expressly permitted by Whistle Communications;
11 * provided, however, that:
12 * 1. Any and all reproductions of the source or object code must include the
13 * copyright notice above and the following disclaimer of warranties; and
14 * 2. No rights are granted, in any manner or form, to use Whistle
15 * Communications, Inc. trademarks, including the mark "WHISTLE
16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
17 * such appears in the above copyright notice or in the software.
18 *
19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35 * OF SUCH DAMAGE.
36 *
37 * Author: Archie Cobbs <archie@freebsd.org>
38 *
39 * $FreeBSD: head/sys/netgraph/ng_tee.h 67506 2000-10-24 17:32:45Z julian $
40 * $Whistle: ng_tee.h,v 1.2 1999/01/20 00:22:14 archie Exp $
41 */
42
43#ifndef _NETGRAPH_TEE_H_
44#define _NETGRAPH_TEE_H_
45
46/* Node type name and magic cookie */
47#define NG_TEE_NODE_TYPE "tee"
48#define NGM_TEE_COOKIE 916107047
49
50/* Hook names */
51#define NG_TEE_HOOK_RIGHT "right"
52#define NG_TEE_HOOK_LEFT "left"
53#define NG_TEE_HOOK_RIGHT2LEFT "right2left"
54#define NG_TEE_HOOK_LEFT2RIGHT "left2right"
55
56/* Statistics structure for one hook */
57struct ng_tee_hookstat {
58 u_int64_t inOctets;
59 u_int64_t inFrames;
60 u_int64_t outOctets;
61 u_int64_t outFrames;
62};
63
64/* Keep this in sync with the above structure definition */
65#define NG_TEE_HOOKSTAT_INFO { \
66 { \
67 { "inOctets", &ng_parse_uint64_type }, \
68 { "inFrames", &ng_parse_uint64_type }, \
69 { "outOctets", &ng_parse_uint64_type }, \
70 { "outFrames", &ng_parse_uint64_type }, \
71 { NULL }, \
72 } \
73}
74
75/* Statistics structure returned by NGM_TEE_GET_STATS */
76struct ng_tee_stats {
77 struct ng_tee_hookstat right;
78 struct ng_tee_hookstat left;
79 struct ng_tee_hookstat right2left;
80 struct ng_tee_hookstat left2right;
81};
82
83/* Keep this in sync with the above structure definition */
84#define NG_TEE_STATS_INFO(hstype) { \
85 { \
86 { "right", (hstype) }, \
87 { "left", (hstype) }, \
88 { "right2left", (hstype) }, \
89 { "left2right", (hstype) }, \
90 { NULL }, \
91 } \
92}
93
94/* Netgraph commands */
95enum {
96 NGM_TEE_GET_STATS = 1, /* get stats */
97 NGM_TEE_CLR_STATS, /* clear stats */
98 NGM_TEE_GETCLR_STATS, /* atomically get and clear stats */
99};
100
101#endif /* _NETGRAPH_TEE_H_ */