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