ng_vjc.h revision 53087 
1
2/*
3 * ng_vjc.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@whistle.com>
38 *
39 * $FreeBSD: head/sys/netgraph/ng_vjc.h 53087 1999-11-10 23:56:19Z archie $
40 * $Whistle: ng_vjc.h,v 1.6 1999/01/25 02:40:22 archie Exp $
41 */
42
43#ifndef _NETGRAPH_VJC_H_
44#define _NETGRAPH_VJC_H_
45
46 /* Node type name and magic cookie */
47#define NG_VJC_NODE_TYPE	"vjc"
48#define NGM_VJC_COOKIE		868219209
49
50 /* Hook names */
51#define NG_VJC_HOOK_IP		"ip"		/* normal IP traffic */
52#define NG_VJC_HOOK_VJCOMP	"vjcomp"	/* compressed TCP */
53#define NG_VJC_HOOK_VJUNCOMP	"vjuncomp"	/* uncompressed TCP */
54#define NG_VJC_HOOK_VJIP	"vjip"		/* uncompressed IP */
55
56 /* Minimum and maximum number of channels */
57#define NG_VJC_MIN_CHANNELS	4
58#define NG_VJC_MAX_CHANNELS	16
59
60 /* Configure struct */
61struct ngm_vjc_config {
62	u_char	enableComp;	/* Enable compression */
63	u_char	enableDecomp;	/* Enable decompression */
64	u_char	maxChannel;	/* Number of compression channels - 1 */
65	u_char	compressCID;	/* OK to compress outgoing CID's */
66};
67
68 /* Netgraph commands */
69enum {
70	NGM_VJC_SET_CONFIG,	/* Supply a struct ngm_vjc_config */
71	NGM_VJC_GET_STATE,	/* Returns current struct slcompress */
72	NGM_VJC_CLR_STATS,	/* Clears statistics counters */
73	NGM_VJC_RECV_ERROR,	/* Indicate loss of incoming frame */
74};
75
76#endif /* _NETGRAPH_VJC_H_ */
77