freebsd-skq/sys/netgraph/ng_deflate.h
glebius b4f4c288b8 A node that implements the Deflate sub-protocols of the Compression Control
Protocol (CCP).

Submitted by:	Alexander Motin <mav alkar.net>
2006-12-28 15:44:05 +00:00

86 lines
2.8 KiB
C

/*-
* Copyright (c) 2006 Alexander Motin <mav@alkar.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NETGRAPH_NG_DEFLATE_H_
#define _NETGRAPH_NG_DEFLATE_H_
/* Node type name and magic cookie */
#define NG_DEFLATE_NODE_TYPE "deflate"
#define NGM_DEFLATE_COOKIE 1166642656
/* Hook names */
#define NG_DEFLATE_HOOK_COMP "comp" /* compression hook */
#define NG_DEFLATE_HOOK_DECOMP "decomp" /* decompression hook */
/* Config struct */
struct ng_deflate_config {
u_char enable; /* node enabled */
u_char windowBits; /* log2(Window size) */
};
/* Keep this in sync with the above structure definition. */
#define NG_DEFLATE_CONFIG_INFO { \
{ "enable", &ng_parse_uint8_type }, \
{ "windowBits", &ng_parse_uint8_type }, \
{ NULL } \
}
/* Statistics structure for one direction. */
struct ng_deflate_stats {
uint64_t FramesPlain;
uint64_t FramesComp;
uint64_t FramesUncomp;
uint64_t InOctets;
uint64_t OutOctets;
uint64_t Errors;
};
/* Keep this in sync with the above structure definition. */
#define NG_DEFLATE_STATS_INFO { \
{ "FramesPlain",&ng_parse_uint64_type }, \
{ "FramesComp", &ng_parse_uint64_type }, \
{ "FramesUncomp", &ng_parse_uint64_type }, \
{ "InOctets", &ng_parse_uint64_type }, \
{ "OutOctets", &ng_parse_uint64_type }, \
{ "Errors", &ng_parse_uint64_type }, \
{ NULL } \
}
/* Netgraph commands */
enum {
NGM_DEFLATE_CONFIG = 1,
NGM_DEFLATE_RESETREQ, /* sent either way! */
NGM_DEFLATE_GET_STATS,
NGM_DEFLATE_CLR_STATS,
NGM_DEFLATE_GETCLR_STATS,
};
#endif /* _NETGRAPH_NG_DEFLATE_H_ */