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_ */