sys/netgraph7/ng_car.h

   1 /*-
   2  * Copyright (c) 2005 Nuno Antunes <nuno.antunes@gmail.com>
   3  * Copyright (c) 2007 Alexander Motin <mav@freebsd.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following 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 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 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_car.h,v 1.2 2007/12/19 22:50:14 mav Exp $
  28  */
  29
  30 #ifndef _NETGRAPH_NG_CAR_H_
  31 #define _NETGRAPH_NG_CAR_H_
  32
  33 #define NG_CAR_NODE_TYPE        "car"
  34 #define NGM_CAR_COOKIE          1173648034
  35
  36 /* Hook names */
  37 #define NG_CAR_HOOK_UPPER       "upper"
  38 #define NG_CAR_HOOK_LOWER       "lower"
  39
  40 /* Per hook statistics counters */
  41 struct ng_car_hookstats {
  42         u_int64_t passed_pkts;  /* Counter for passed packets */
  43         u_int64_t droped_pkts;  /* Counter for droped packets */
  44         u_int64_t green_pkts;   /* Counter for green packets */
  45         u_int64_t yellow_pkts;  /* Counter for yellow packets */
  46         u_int64_t red_pkts;     /* Counter for red packets */
  47         u_int64_t errors;       /* Counter for operation errors */
  48 };
  49 #define NG_CAR_HOOKSTATS        {                               \
  50           { "passed",           &ng_parse_uint64_type   },      \
  51           { "droped",           &ng_parse_uint64_type   },      \
  52           { "green",            &ng_parse_uint64_type   },      \
  53           { "yellow",           &ng_parse_uint64_type   },      \
  54           { "red",              &ng_parse_uint64_type   },      \
  55           { "errors",           &ng_parse_uint64_type   },      \
  56           { NULL }                                              \
  57 }
  58
  59 /* Bulk statistics */
  60 struct ng_car_bulkstats {
  61         struct ng_car_hookstats upstream;
  62         struct ng_car_hookstats downstream;
  63 };
  64 #define NG_CAR_BULKSTATS(hstatstype) {                          \
  65           { "upstream",         (hstatstype)            },      \
  66           { "downstream",       (hstatstype)            },      \
  67           { NULL }                                              \
  68 }
  69
  70 /* Per hook configuration */
  71 struct ng_car_hookconf {
  72         u_int64_t cbs;          /* Commited burst size (bytes) */
  73         u_int64_t ebs;          /* Exceeded/Peak burst size (bytes) */
  74         u_int64_t cir;          /* Commited information rate (bits/s) */
  75         u_int64_t pir;          /* Peak information rate (bits/s) */
  76         u_int8_t green_action;  /* Action for green packets */
  77         u_int8_t yellow_action; /* Action for yellow packets */
  78         u_int8_t red_action;    /* Action for red packets */
  79         u_int8_t mode;          /* single/double rate, ... */
  80         u_int8_t opt;           /* color-aware or color-blind */
  81 };
  82 /* Keep this definition in sync with the above structure */
  83 #define NG_CAR_HOOKCONF {                                       \
  84           { "cbs",              &ng_parse_uint64_type   },      \
  85           { "ebs",              &ng_parse_uint64_type   },      \
  86           { "cir",              &ng_parse_uint64_type   },      \
  87           { "pir",              &ng_parse_uint64_type   },      \
  88           { "greenAction",      &ng_parse_uint8_type    },      \
  89           { "yellowAction",     &ng_parse_uint8_type    },      \
  90           { "redAction",        &ng_parse_uint8_type    },      \
  91           { "mode",             &ng_parse_uint8_type    },      \
  92           { "opt",              &ng_parse_uint8_type    },      \
  93           { NULL }                                              \
  94 }
  95
  96 #define NG_CAR_CBS_MIN          8192
  97 #define NG_CAR_EBS_MIN          8192
  98 #define NG_CAR_CIR_DFLT         10240
  99
 100 /* possible actions (...Action) */
 101 enum {
 102     NG_CAR_ACTION_FORWARD = 1,
 103     NG_CAR_ACTION_DROP,
 104     NG_CAR_ACTION_MARK,
 105     NG_CAR_ACTION_SET_TOS
 106 };
 107
 108 /* operation modes (mode) */
 109 enum {
 110     NG_CAR_SINGLE_RATE = 0,
 111     NG_CAR_DOUBLE_RATE,
 112     NG_CAR_RED,
 113     NG_CAR_SHAPE
 114 };
 115
 116 /* mode options (opt) */
 117 #define NG_CAR_COLOR_AWARE      1
 118 #define NG_CAR_COUNT_PACKETS    2
 119
 120 /* Bulk config */
 121 struct ng_car_bulkconf {
 122         struct ng_car_hookconf upstream;
 123         struct ng_car_hookconf downstream;
 124 };
 125 #define NG_CAR_BULKCONF(hconftype) {                            \
 126           { "upstream",         (hconftype)             },      \
 127           { "downstream",       (hconftype)             },      \
 128           { NULL }                                              \
 129 }
 130
 131 /* Commands */
 132 enum {
 133         NGM_CAR_GET_STATS = 1,          /* Get statistics */
 134         NGM_CAR_CLR_STATS,              /* Clear statistics */
 135         NGM_CAR_GETCLR_STATS,           /* Get and clear statistics */
 136         NGM_CAR_GET_CONF,               /* Get bulk configuration */
 137         NGM_CAR_SET_CONF,               /* Set bulk configuration */
 138 };
 139
 140 #endif /* _NETGRAPH_NG_CAR_H_ */