1 /*-
2  * Copyright (c) 2006 Alexander Motin <mav@alkar.net>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD: src/sys/netgraph/ng_deflate.h,v 1.1 2006/12/28 15:44:05 glebius Exp $
28  * $DragonFly: src/sys/netgraph7/ng_deflate.h,v 1.2 2008/06/26 23:05:35 dillon Exp $
29  */
30 
31 #ifndef _NETGRAPH_NG_DEFLATE_H_
32 #define _NETGRAPH_NG_DEFLATE_H_
33 
34 /* Node type name and magic cookie */
35 #define NG_DEFLATE_NODE_TYPE	"deflate"
36 #define NGM_DEFLATE_COOKIE	1166642656
37 
38 /* Hook names */
39 #define NG_DEFLATE_HOOK_COMP	"comp"		/* compression hook */
40 #define NG_DEFLATE_HOOK_DECOMP	"decomp"	/* decompression hook */
41 
42 /* Config struct */
43 struct ng_deflate_config {
44 	u_char		enable;			/* node enabled */
45 	u_char		windowBits;		/* log2(Window size) */
46 };
47 
48 /* Keep this in sync with the above structure definition. */
49 #define NG_DEFLATE_CONFIG_INFO	{			\
50 	{ "enable",	&ng_parse_uint8_type	},	\
51 	{ "windowBits",	&ng_parse_uint8_type	},	\
52 	{ NULL }					\
53 }
54 
55 /* Statistics structure for one direction. */
56 struct ng_deflate_stats {
57 	uint64_t	FramesPlain;
58 	uint64_t	FramesComp;
59 	uint64_t	FramesUncomp;
60 	uint64_t	InOctets;
61 	uint64_t	OutOctets;
62 	uint64_t	Errors;
63 };
64 
65 /* Keep this in sync with the above structure definition. */
66 #define NG_DEFLATE_STATS_INFO	{				\
67 	{ "FramesPlain",&ng_parse_uint64_type	},	\
68 	{ "FramesComp",	&ng_parse_uint64_type	},	\
69 	{ "FramesUncomp", &ng_parse_uint64_type	},	\
70 	{ "InOctets",	&ng_parse_uint64_type	},	\
71 	{ "OutOctets",	&ng_parse_uint64_type	},	\
72 	{ "Errors",	&ng_parse_uint64_type	},	\
73 	{ NULL }					\
74 }
75 
76 /* Netgraph commands */
77 enum {
78 	NGM_DEFLATE_CONFIG = 1,
79 	NGM_DEFLATE_RESETREQ,			/* sent either way! */
80 	NGM_DEFLATE_GET_STATS,
81 	NGM_DEFLATE_CLR_STATS,
82 	NGM_DEFLATE_GETCLR_STATS,
83 };
84 
85 #endif /* _NETGRAPH_NG_DEFLATE_H_ */
86 
87