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