1/*
2 * ng_vjc.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_vjc.h,v 1.6 1999/01/25 02:40:22 archie Exp $
40 */
41
42#ifndef _NETGRAPH_NG_VJC_H_
43#define _NETGRAPH_NG_VJC_H_
44
45 /* Node type name and magic cookie */
46#define NG_VJC_NODE_TYPE "vjc"
47#define NGM_VJC_COOKIE 868219210
48
49 /* Hook names */
50#define NG_VJC_HOOK_IP "ip" /* normal IP traffic */
51#define NG_VJC_HOOK_VJCOMP "vjcomp" /* compressed TCP */
52#define NG_VJC_HOOK_VJUNCOMP "vjuncomp" /* uncompressed TCP */
53#define NG_VJC_HOOK_VJIP "vjip" /* uncompressed IP */
54
55 /* Minimum and maximum number of compression channels */
56#define NG_VJC_MIN_CHANNELS 4
57#define NG_VJC_MAX_CHANNELS 16
58
59 /* Configure struct */
60struct ngm_vjc_config {
61 u_char enableComp; /* Enable compression */
62 u_char enableDecomp; /* Enable decompression */
63 u_char maxChannel; /* Number of compression channels - 1 */
64 u_char compressCID; /* OK to compress outgoing CID's */
65};
66
67/* Keep this in sync with the above structure definition */
68#define NG_VJC_CONFIG_TYPE_INFO { \
69 { "enableComp", &ng_parse_uint8_type }, \
70 { "enableDecomp", &ng_parse_uint8_type }, \
71 { "maxChannel", &ng_parse_uint8_type }, \
72 { "compressCID", &ng_parse_uint8_type }, \
73 { NULL } \
74}
75
76 /* Netgraph commands */
77enum {
78 NGM_VJC_SET_CONFIG, /* Supply a struct ngm_vjc_config */
79 NGM_VJC_GET_CONFIG, /* Returns a struct ngm_vjc_config */
80 NGM_VJC_GET_STATE, /* Returns current struct slcompress */
81 NGM_VJC_CLR_STATS, /* Clears statistics counters */
82 NGM_VJC_RECV_ERROR, /* Indicate loss of incoming frame */
83};
84
85#endif /* _NETGRAPH_NG_VJC_H_ */