ng_bridge.h revision 65310
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: head/sys/netgraph/ng_bridge.h 65310 2000-09-01 01:37:13Z archie $ 40 */ 41 42#ifndef _NETGRAPH_NG_BRIDGE_H_ 43#define _NETGRAPH_NG_BRIDGE_H_ 44 45/* Node type name and magic cookie */ 46#define NG_BRIDGE_NODE_TYPE "bridge" 47#define NGM_BRIDGE_COOKIE 967239368 48 49/* Hook names */ 50#define NG_BRIDGE_HOOK_LINK_PREFIX "link" /* append decimal integer */ 51#define NG_BRIDGE_HOOK_LINK_FMT "link%d" /* for use with printf(3) */ 52 53/* Maximum number of supported links */ 54#define NG_BRIDGE_MAX_LINKS 32 55 56/* Node configuration structure */ 57struct ng_bridge_config { 58 u_char ipfw[NG_BRIDGE_MAX_LINKS]; /* enable ipfw */ 59 u_char debugLevel; /* debug level */ 60 u_int32_t loopTimeout; /* link loopback mute time */ 61 u_int32_t maxStaleness; /* max host age before nuking */ 62 u_int32_t minStableAge; /* min time for a stable host */ 63}; 64 65/* Keep this in sync with the above structure definition */ 66#define NG_BRIDGE_CONFIG_TYPE_INFO(ainfo) { \ 67 { \ 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 77/* Statistics structure (one for each link) */ 78struct 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 { \ 98 { "recvOctets", &ng_parse_uint64_type }, \ 99 { "recvPackets", &ng_parse_uint64_type }, \ 100 { "recvMulticast", &ng_parse_uint64_type }, \ 101 { "recvBroadcast", &ng_parse_uint64_type }, \ 102 { "recvUnknown", &ng_parse_uint64_type }, \ 103 { "recvRunts", &ng_parse_uint64_type }, \ 104 { "recvInvalid", &ng_parse_uint64_type }, \ 105 { "xmitOctets", &ng_parse_uint64_type }, \ 106 { "xmitPackets", &ng_parse_uint64_type }, \ 107 { "xmitMulticasts", &ng_parse_uint64_type }, \ 108 { "xmitBroadcasts", &ng_parse_uint64_type }, \ 109 { "loopDrops", &ng_parse_uint64_type }, \ 110 { "loopDetects", &ng_parse_uint64_type }, \ 111 { "memoryFailures", &ng_parse_uint64_type }, \ 112 { NULL } \ 113 } \ 114} 115 116/* Structure describing a single host */ 117struct ng_bridge_host { 118 u_char addr[6]; /* ethernet address */ 119 u_int16_t linkNum; /* link where addr can be found */ 120 u_int16_t age; /* seconds ago entry was created */ 121 u_int16_t staleness; /* seconds ago host last heard from */ 122}; 123 124/* Keep this in sync with the above structure definition */ 125#define NG_BRIDGE_HOST_TYPE_INFO(entype) { \ 126 { \ 127 { "addr", (entype) }, \ 128 { "linkNum", &ng_parse_uint16_type }, \ 129 { "age", &ng_parse_uint16_type }, \ 130 { "staleness", &ng_parse_uint16_type }, \ 131 { NULL } \ 132 } \ 133} 134 135/* Structure returned by NGM_BRIDGE_GET_TABLE */ 136struct ng_bridge_host_ary { 137 u_int32_t numHosts; 138 struct ng_bridge_host hosts[0]; 139}; 140 141/* Keep this in sync with the above structure definition */ 142#define NG_BRIDGE_HOST_ARY_TYPE_INFO(harytype) { \ 143 { \ 144 { "numHosts", &ng_parse_uint32_type }, \ 145 { "hosts", (harytype) }, \ 146 { NULL } \ 147 } \ 148} 149 150/* Netgraph control messages */ 151enum { 152 NGM_BRIDGE_SET_CONFIG = 1, /* set node configuration */ 153 NGM_BRIDGE_GET_CONFIG, /* get node configuration */ 154 NGM_BRIDGE_RESET, /* reset (forget) all information */ 155 NGM_BRIDGE_GET_STATS, /* get link stats */ 156 NGM_BRIDGE_CLR_STATS, /* clear link stats */ 157 NGM_BRIDGE_GETCLR_STATS, /* atomically get & clear link stats */ 158 NGM_BRIDGE_GET_TABLE, /* get link table */ 159}; 160 161#endif /* _NETGRAPH_NG_BRIDGE_H_ */ 162 163