sys/netgraph7/ng_bridge.h

   1 /*
   2  * ng_bridge.h
   3  */
   4
   5 /*-
   6  * Copyright (c) 2000 Whistle Communications, Inc.
   7  * All rights reserved.
   8  *
   9  * Subject to the following obligations and disclaimer of warranty, use and
  10  * redistribution of this software, in source or object code forms, with or
  11  * without modifications are expressly permitted by Whistle Communications;
  12  * provided, however, that:
  13  * 1. Any and all reproductions of the source or object code must include the
  14  *    copyright notice above and the following disclaimer of warranties; and
  15  * 2. No rights are granted, in any manner or form, to use Whistle
  16  *    Communications, Inc. trademarks, including the mark "WHISTLE
  17  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
  18  *    such appears in the above copyright notice or in the software.
  19  *
  20  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
  21  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
  22  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
  23  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
  24  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  25  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
  26  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
  27  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
  28  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
  29  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
  30  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  31  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
  32  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  35  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
  36  * OF SUCH DAMAGE.
  37  *
  38  * Author: Archie Cobbs <archie@freebsd.org>
  39  *
  40  * $FreeBSD: src/sys/netgraph/ng_bridge.h,v 1.4 2005/10/28 14:41:28 ru Exp $
  41  * $DragonFly: src/sys/netgraph7/ng_bridge.h,v 1.2 2008/06/26 23:05:35 dillon Exp $
  42  */
  43
  44 #ifndef _NETGRAPH_NG_BRIDGE_H_
  45 #define _NETGRAPH_NG_BRIDGE_H_
  46
  47 /* Node type name and magic cookie */
  48 #define NG_BRIDGE_NODE_TYPE             "bridge"
  49 #define NGM_BRIDGE_COOKIE               967239368
  50
  51 /* Hook names */
  52 #define NG_BRIDGE_HOOK_LINK_PREFIX      "link"   /* append decimal integer */
  53 #define NG_BRIDGE_HOOK_LINK_FMT         "link%d" /* for use with printf(3) */
  54
  55 /* Maximum number of supported links */
  56 #define NG_BRIDGE_MAX_LINKS             32
  57
  58 /* Node configuration structure */
  59 struct ng_bridge_config {
  60         u_char          ipfw[NG_BRIDGE_MAX_LINKS];      /* enable ipfw */
  61         u_char          debugLevel;             /* debug level */
  62         u_int32_t       loopTimeout;            /* link loopback mute time */
  63         u_int32_t       maxStaleness;           /* max host age before nuking */
  64         u_int32_t       minStableAge;           /* min time for a stable host */
  65 };
  66
  67 /* Keep this in sync with the above structure definition */
  68 #define NG_BRIDGE_CONFIG_TYPE_INFO(ainfo)       {               \
  69           { "ipfw",             (ainfo)                 },      \
  70           { "debugLevel",       &ng_parse_uint8_type    },      \
  71           { "loopTimeout",      &ng_parse_uint32_type   },      \
  72           { "maxStaleness",     &ng_parse_uint32_type   },      \
  73           { "minStableAge",     &ng_parse_uint32_type   },      \
  74           { NULL }                                              \
  75 }
  76
  77 /* Statistics structure (one for each link) */
  78 struct ng_bridge_link_stats {
  79         u_int64_t       recvOctets;     /* total octets rec'd on link */
  80         u_int64_t       recvPackets;    /* total pkts rec'd on link */
  81         u_int64_t       recvMulticasts; /* multicast pkts rec'd on link */
  82         u_int64_t       recvBroadcasts; /* broadcast pkts rec'd on link */
  83         u_int64_t       recvUnknown;    /* pkts rec'd with unknown dest addr */
  84         u_int64_t       recvRunts;      /* pkts rec'd less than 14 bytes */
  85         u_int64_t       recvInvalid;    /* pkts rec'd with bogus source addr */
  86         u_int64_t       xmitOctets;     /* total octets xmit'd on link */
  87         u_int64_t       xmitPackets;    /* total pkts xmit'd on link */
  88         u_int64_t       xmitMulticasts; /* multicast pkts xmit'd on link */
  89         u_int64_t       xmitBroadcasts; /* broadcast pkts xmit'd on link */
  90         u_int64_t       loopDrops;      /* pkts dropped due to loopback */
  91         u_int64_t       loopDetects;    /* number of loop detections */
  92         u_int64_t       memoryFailures; /* times couldn't get mem or mbuf */
  93 };
  94
  95 /* Keep this in sync with the above structure definition */
  96 #define NG_BRIDGE_STATS_TYPE_INFO       {                       \
  97           { "recvOctets",       &ng_parse_uint64_type   },      \
  98           { "recvPackets",      &ng_parse_uint64_type   },      \
  99           { "recvMulticast",    &ng_parse_uint64_type   },      \
 100           { "recvBroadcast",    &ng_parse_uint64_type   },      \
 101           { "recvUnknown",      &ng_parse_uint64_type   },      \
 102           { "recvRunts",        &ng_parse_uint64_type   },      \
 103           { "recvInvalid",      &ng_parse_uint64_type   },      \
 104           { "xmitOctets",       &ng_parse_uint64_type   },      \
 105           { "xmitPackets",      &ng_parse_uint64_type   },      \
 106           { "xmitMulticasts",   &ng_parse_uint64_type   },      \
 107           { "xmitBroadcasts",   &ng_parse_uint64_type   },      \
 108           { "loopDrops",        &ng_parse_uint64_type   },      \
 109           { "loopDetects",      &ng_parse_uint64_type   },      \
 110           { "memoryFailures",   &ng_parse_uint64_type   },      \
 111           { NULL }                                              \
 112 }
 113
 114 /* Structure describing a single host */
 115 struct ng_bridge_host {
 116         u_char          addr[6];        /* ethernet address */
 117         u_int16_t       linkNum;        /* link where addr can be found */
 118         u_int16_t       age;            /* seconds ago entry was created */
 119         u_int16_t       staleness;      /* seconds ago host last heard from */
 120 };
 121
 122 /* Keep this in sync with the above structure definition */
 123 #define NG_BRIDGE_HOST_TYPE_INFO(entype)        {               \
 124           { "addr",             (entype)                },      \
 125           { "linkNum",          &ng_parse_uint16_type   },      \
 126           { "age",              &ng_parse_uint16_type   },      \
 127           { "staleness",        &ng_parse_uint16_type   },      \
 128           { NULL }                                              \
 129 }
 130
 131 /* Structure returned by NGM_BRIDGE_GET_TABLE */
 132 struct ng_bridge_host_ary {
 133         u_int32_t               numHosts;
 134         struct ng_bridge_host   hosts[];
 135 };
 136
 137 /* Keep this in sync with the above structure definition */
 138 #define NG_BRIDGE_HOST_ARY_TYPE_INFO(harytype)  {               \
 139           { "numHosts",         &ng_parse_uint32_type   },      \
 140           { "hosts",            (harytype)              },      \
 141           { NULL }                                              \
 142 }
 143
 144 /* Netgraph control messages */
 145 enum {
 146         NGM_BRIDGE_SET_CONFIG = 1,      /* set node configuration */
 147         NGM_BRIDGE_GET_CONFIG,          /* get node configuration */
 148         NGM_BRIDGE_RESET,               /* reset (forget) all information */
 149         NGM_BRIDGE_GET_STATS,           /* get link stats */
 150         NGM_BRIDGE_CLR_STATS,           /* clear link stats */
 151         NGM_BRIDGE_GETCLR_STATS,        /* atomically get & clear link stats */
 152         NGM_BRIDGE_GET_TABLE,           /* get link table */
 153 };
 154
 155 #endif /* _NETGRAPH_NG_BRIDGE_H_ */
 156