sys/netgraph7/ng_deflate.h

   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