sys/netgraph/bridge/ng_bridge.h

   1
   2 /*
   3  * ng_bridge.h
   4  *
   5  * Copyright (c) 2000 Whistle Communications, Inc.
   6  * All rights reserved.
   7  *
   8  * Subject to the following obligations and disclaimer of warranty, use and
   9  * redistribution of this software, in source or object code forms, with or
  10  * without modifications are expressly permitted by Whistle Communications;
  11  * provided, however, that:
  12  * 1. Any and all reproductions of the source or object code must include the
  13  *    copyright notice above and the following disclaimer of warranties; and
  14  * 2. No rights are granted, in any manner or form, to use Whistle
  15  *    Communications, Inc. trademarks, including the mark "WHISTLE
  16  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  17  *    such appears in the above copyright notice or in the software.
  18  *
  19  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  20  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  21  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
  22  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
  23  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  24  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
  25  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
  26  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
  27  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
  28  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
  29  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  30  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
  35  * OF SUCH DAMAGE.
  36  *
  37  * Author: Archie Cobbs <archie@freebsd.org>
  38  *
  39  * $FreeBSD: src/sys/netgraph/ng_bridge.h,v 1.1.2.2 2002/07/02 23:44:02 archie Exp $
  40  * $DragonFly: src/sys/netgraph/bridge/ng_bridge.h,v 1.2 2003/06/17 04:28:49 dillon Exp $
  41  */
  42
  43 #ifndef _NETGRAPH_NG_BRIDGE_H_
  44 #define _NETGRAPH_NG_BRIDGE_H_
  45
  46 /* Node type name and magic cookie */
  47 #define NG_BRIDGE_NODE_TYPE             "bridge"
  48 #define NGM_BRIDGE_COOKIE               967239368
  49
  50 /* Hook names */
  51 #define NG_BRIDGE_HOOK_LINK_PREFIX      "link"   /* append decimal integer */
  52 #define NG_BRIDGE_HOOK_LINK_FMT         "link%d" /* for use with printf(3) */
  53
  54 /* Maximum number of supported links */
  55 #define NG_BRIDGE_MAX_LINKS             32
  56
  57 /* Node configuration structure */
  58 struct ng_bridge_config {
  59         u_char          ipfw[NG_BRIDGE_MAX_LINKS];      /* enable ipfw */
  60         u_char          debugLevel;             /* debug level */
  61         u_int32_t       loopTimeout;            /* link loopback mute time */
  62         u_int32_t       maxStaleness;           /* max host age before nuking */
  63         u_int32_t       minStableAge;           /* min time for a stable host */
  64 };
  65
  66 /* Keep this in sync with the above structure definition */
  67 #define NG_BRIDGE_CONFIG_TYPE_INFO(ainfo)       {               \
  68           { "ipfw",             (ainfo)                 },      \
  69           { "debugLevel",       &ng_parse_uint8_type    },      \
  70           { "loopTimeout",      &ng_parse_uint32_type   },      \
  71           { "maxStaleness",     &ng_parse_uint32_type   },      \
  72           { "minStableAge",     &ng_parse_uint32_type   },      \
  73           { NULL }                                              \
  74 }
  75
  76 /* Statistics structure (one for each link) */
  77 struct ng_bridge_link_stats {
  78         u_int64_t       recvOctets;     /* total octets rec'd on link */
  79         u_int64_t       recvPackets;    /* total pkts rec'd on link */
  80         u_int64_t       recvMulticasts; /* multicast pkts rec'd on link */
  81         u_int64_t       recvBroadcasts; /* broadcast pkts rec'd on link */
  82         u_int64_t       recvUnknown;    /* pkts rec'd with unknown dest addr */
  83         u_int64_t       recvRunts;      /* pkts rec'd less than 14 bytes */
  84         u_int64_t       recvInvalid;    /* pkts rec'd with bogus source addr */
  85         u_int64_t       xmitOctets;     /* total octets xmit'd on link */
  86         u_int64_t       xmitPackets;    /* total pkts xmit'd on link */
  87         u_int64_t       xmitMulticasts; /* multicast pkts xmit'd on link */
  88         u_int64_t       xmitBroadcasts; /* broadcast pkts xmit'd on link */
  89         u_int64_t       loopDrops;      /* pkts dropped due to loopback */
  90         u_int64_t       loopDetects;    /* number of loop detections */
  91         u_int64_t       memoryFailures; /* times couldn't get mem or mbuf */
  92 };
  93
  94 /* Keep this in sync with the above structure definition */
  95 #define NG_BRIDGE_STATS_TYPE_INFO       {                       \
  96           { "recvOctets",       &ng_parse_uint64_type   },      \
  97           { "recvPackets",      &ng_parse_uint64_type   },      \
  98           { "recvMulticast",    &ng_parse_uint64_type   },      \
  99           { "recvBroadcast",    &ng_parse_uint64_type   },      \
 100           { "recvUnknown",      &ng_parse_uint64_type   },      \
 101           { "recvRunts",        &ng_parse_uint64_type   },      \
 102           { "recvInvalid",      &ng_parse_uint64_type   },      \
 103           { "xmitOctets",       &ng_parse_uint64_type   },      \
 104           { "xmitPackets",      &ng_parse_uint64_type   },      \
 105           { "xmitMulticasts",   &ng_parse_uint64_type   },      \
 106           { "xmitBroadcasts",   &ng_parse_uint64_type   },      \
 107           { "loopDrops",        &ng_parse_uint64_type   },      \
 108           { "loopDetects",      &ng_parse_uint64_type   },      \
 109           { "memoryFailures",   &ng_parse_uint64_type   },      \
 110           { NULL }                                              \
 111 }
 112
 113 /* Structure describing a single host */
 114 struct ng_bridge_host {
 115         u_char          addr[6];        /* ethernet address */
 116         u_int16_t       linkNum;        /* link where addr can be found */
 117         u_int16_t       age;            /* seconds ago entry was created */
 118         u_int16_t       staleness;      /* seconds ago host last heard from */
 119 };
 120
 121 /* Keep this in sync with the above structure definition */
 122 #define NG_BRIDGE_HOST_TYPE_INFO(entype)        {               \
 123           { "addr",             (entype)                },      \
 124           { "linkNum",          &ng_parse_uint16_type   },      \
 125           { "age",              &ng_parse_uint16_type   },      \
 126           { "staleness",        &ng_parse_uint16_type   },      \
 127           { NULL }                                              \
 128 }
 129
 130 /* Structure returned by NGM_BRIDGE_GET_TABLE */
 131 struct ng_bridge_host_ary {
 132         u_int32_t               numHosts;
 133         struct ng_bridge_host   hosts[0];
 134 };
 135
 136 /* Keep this in sync with the above structure definition */
 137 #define NG_BRIDGE_HOST_ARY_TYPE_INFO(harytype)  {               \
 138           { "numHosts",         &ng_parse_uint32_type   },      \
 139           { "hosts",            (harytype)              },      \
 140           { NULL }                                              \
 141 }
 142
 143 /* Netgraph control messages */
 144 enum {
 145         NGM_BRIDGE_SET_CONFIG = 1,      /* set node configuration */
 146         NGM_BRIDGE_GET_CONFIG,          /* get node configuration */
 147         NGM_BRIDGE_RESET,               /* reset (forget) all information */
 148         NGM_BRIDGE_GET_STATS,           /* get link stats */
 149         NGM_BRIDGE_CLR_STATS,           /* clear link stats */
 150         NGM_BRIDGE_GETCLR_STATS,        /* atomically get & clear link stats */
 151         NGM_BRIDGE_GET_TABLE,           /* get link table */
 152 };
 153
 154 #endif /* _NETGRAPH_NG_BRIDGE_H_ */
 155