ng_car.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2005 Nuno Antunes <nuno.antunes@gmail.com>
    5  * Copyright (c) 2007 Alexander Motin <mav@freebsd.org>
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD: releng/12.0/sys/netgraph/ng_car.h 326272 2017-11-27 15:23:17Z pfg $
   30  */
   31 
   32 #ifndef _NETGRAPH_NG_CAR_H_
   33 #define _NETGRAPH_NG_CAR_H_
   34 
   35 #define NG_CAR_NODE_TYPE        "car"
   36 #define NGM_CAR_COOKIE          1173648034
   37 
   38 /* Hook names */
   39 #define NG_CAR_HOOK_UPPER       "upper"
   40 #define NG_CAR_HOOK_LOWER       "lower"
   41 
   42 /* Per hook statistics counters */
   43 struct ng_car_hookstats {
   44         u_int64_t passed_pkts;  /* Counter for passed packets */
   45         u_int64_t droped_pkts;  /* Counter for droped packets */
   46         u_int64_t green_pkts;   /* Counter for green packets */
   47         u_int64_t yellow_pkts;  /* Counter for yellow packets */
   48         u_int64_t red_pkts;     /* Counter for red packets */
   49         u_int64_t errors;       /* Counter for operation errors */
   50 };
   51 #define NG_CAR_HOOKSTATS        {                               \
   52           { "passed",           &ng_parse_uint64_type   },      \
   53           { "droped",           &ng_parse_uint64_type   },      \
   54           { "green",            &ng_parse_uint64_type   },      \
   55           { "yellow",           &ng_parse_uint64_type   },      \
   56           { "red",              &ng_parse_uint64_type   },      \
   57           { "errors",           &ng_parse_uint64_type   },      \
   58           { NULL }                                              \
   59 }
   60 
   61 /* Bulk statistics */
   62 struct ng_car_bulkstats {
   63         struct ng_car_hookstats upstream;
   64         struct ng_car_hookstats downstream;
   65 };
   66 #define NG_CAR_BULKSTATS(hstatstype) {                          \
   67           { "upstream",         (hstatstype)            },      \
   68           { "downstream",       (hstatstype)            },      \
   69           { NULL }                                              \
   70 }
   71 
   72 /* Per hook configuration */
   73 struct ng_car_hookconf {
   74         u_int64_t cbs;          /* Committed burst size (bytes) */
   75         u_int64_t ebs;          /* Exceeded/Peak burst size (bytes) */
   76         u_int64_t cir;          /* Committed information rate (bits/s) */
   77         u_int64_t pir;          /* Peak information rate (bits/s) */
   78         u_int8_t green_action;  /* Action for green packets */
   79         u_int8_t yellow_action; /* Action for yellow packets */
   80         u_int8_t red_action;    /* Action for red packets */
   81         u_int8_t mode;          /* single/double rate, ... */
   82         u_int8_t opt;           /* color-aware or color-blind */
   83 };
   84 /* Keep this definition in sync with the above structure */
   85 #define NG_CAR_HOOKCONF {                                       \
   86           { "cbs",              &ng_parse_uint64_type   },      \
   87           { "ebs",              &ng_parse_uint64_type   },      \
   88           { "cir",              &ng_parse_uint64_type   },      \
   89           { "pir",              &ng_parse_uint64_type   },      \
   90           { "greenAction",      &ng_parse_uint8_type    },      \
   91           { "yellowAction",     &ng_parse_uint8_type    },      \
   92           { "redAction",        &ng_parse_uint8_type    },      \
   93           { "mode",             &ng_parse_uint8_type    },      \
   94           { "opt",              &ng_parse_uint8_type    },      \
   95           { NULL }                                              \
   96 }
   97 
   98 #define NG_CAR_CBS_MIN          8192
   99 #define NG_CAR_EBS_MIN          8192
  100 #define NG_CAR_CIR_DFLT         10240
  101 
  102 /* possible actions (...Action) */
  103 enum {
  104     NG_CAR_ACTION_FORWARD = 1,
  105     NG_CAR_ACTION_DROP,
  106     NG_CAR_ACTION_MARK,
  107     NG_CAR_ACTION_SET_TOS
  108 };
  109 
  110 /* operation modes (mode) */
  111 enum {
  112     NG_CAR_SINGLE_RATE = 0,
  113     NG_CAR_DOUBLE_RATE,
  114     NG_CAR_RED,
  115     NG_CAR_SHAPE
  116 };
  117 
  118 /* mode options (opt) */
  119 #define NG_CAR_COLOR_AWARE      1
  120 #define NG_CAR_COUNT_PACKETS    2
  121 
  122 /* Bulk config */
  123 struct ng_car_bulkconf {
  124         struct ng_car_hookconf upstream;
  125         struct ng_car_hookconf downstream;
  126 };
  127 #define NG_CAR_BULKCONF(hconftype) {                            \
  128           { "upstream",         (hconftype)             },      \
  129           { "downstream",       (hconftype)             },      \
  130           { NULL }                                              \
  131 }
  132 
  133 /* Commands */
  134 enum {
  135         NGM_CAR_GET_STATS = 1,          /* Get statistics */
  136         NGM_CAR_CLR_STATS,              /* Clear statistics */
  137         NGM_CAR_GETCLR_STATS,           /* Get and clear statistics */
  138         NGM_CAR_GET_CONF,               /* Get bulk configuration */
  139         NGM_CAR_SET_CONF,               /* Set bulk configuration */
  140 };
  141 
  142 #endif /* _NETGRAPH_NG_CAR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/netgraph/ng_car.h

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sys/netgraph/ng_car.h