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 * $FreeBSD$ 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[]; 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 NGM_BRIDGE_SET_PERSISTENT, /* set persistent mode */ 153 }; 154 155 #endif /* _NETGRAPH_NG_BRIDGE_H_ */ 156 157