156 lines
6.1 KiB
C
156 lines
6.1 KiB
C
/*
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* ng_bridge.h
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*/
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/*-
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* Copyright (c) 2000 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Archie Cobbs <archie@freebsd.org>
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*
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_NG_BRIDGE_H_
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#define _NETGRAPH_NG_BRIDGE_H_
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/* Node type name and magic cookie */
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#define NG_BRIDGE_NODE_TYPE "bridge"
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#define NGM_BRIDGE_COOKIE 967239368
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/* Hook names */
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#define NG_BRIDGE_HOOK_LINK_PREFIX "link" /* append decimal integer */
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#define NG_BRIDGE_HOOK_LINK_FMT "link%d" /* for use with printf(3) */
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/* Maximum number of supported links */
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#define NG_BRIDGE_MAX_LINKS 32
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/* Node configuration structure */
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struct ng_bridge_config {
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u_char ipfw[NG_BRIDGE_MAX_LINKS]; /* enable ipfw */
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u_char debugLevel; /* debug level */
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u_int32_t loopTimeout; /* link loopback mute time */
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u_int32_t maxStaleness; /* max host age before nuking */
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u_int32_t minStableAge; /* min time for a stable host */
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};
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/* Keep this in sync with the above structure definition */
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#define NG_BRIDGE_CONFIG_TYPE_INFO(ainfo) { \
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{ "ipfw", (ainfo) }, \
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{ "debugLevel", &ng_parse_uint8_type }, \
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{ "loopTimeout", &ng_parse_uint32_type }, \
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{ "maxStaleness", &ng_parse_uint32_type }, \
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{ "minStableAge", &ng_parse_uint32_type }, \
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{ NULL } \
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}
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/* Statistics structure (one for each link) */
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struct ng_bridge_link_stats {
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u_int64_t recvOctets; /* total octets rec'd on link */
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u_int64_t recvPackets; /* total pkts rec'd on link */
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u_int64_t recvMulticasts; /* multicast pkts rec'd on link */
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u_int64_t recvBroadcasts; /* broadcast pkts rec'd on link */
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u_int64_t recvUnknown; /* pkts rec'd with unknown dest addr */
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u_int64_t recvRunts; /* pkts rec'd less than 14 bytes */
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u_int64_t recvInvalid; /* pkts rec'd with bogus source addr */
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u_int64_t xmitOctets; /* total octets xmit'd on link */
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u_int64_t xmitPackets; /* total pkts xmit'd on link */
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u_int64_t xmitMulticasts; /* multicast pkts xmit'd on link */
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u_int64_t xmitBroadcasts; /* broadcast pkts xmit'd on link */
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u_int64_t loopDrops; /* pkts dropped due to loopback */
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u_int64_t loopDetects; /* number of loop detections */
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u_int64_t memoryFailures; /* times couldn't get mem or mbuf */
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};
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/* Keep this in sync with the above structure definition */
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#define NG_BRIDGE_STATS_TYPE_INFO { \
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{ "recvOctets", &ng_parse_uint64_type }, \
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{ "recvPackets", &ng_parse_uint64_type }, \
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{ "recvMulticast", &ng_parse_uint64_type }, \
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{ "recvBroadcast", &ng_parse_uint64_type }, \
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{ "recvUnknown", &ng_parse_uint64_type }, \
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{ "recvRunts", &ng_parse_uint64_type }, \
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{ "recvInvalid", &ng_parse_uint64_type }, \
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{ "xmitOctets", &ng_parse_uint64_type }, \
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{ "xmitPackets", &ng_parse_uint64_type }, \
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{ "xmitMulticasts", &ng_parse_uint64_type }, \
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{ "xmitBroadcasts", &ng_parse_uint64_type }, \
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{ "loopDrops", &ng_parse_uint64_type }, \
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{ "loopDetects", &ng_parse_uint64_type }, \
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{ "memoryFailures", &ng_parse_uint64_type }, \
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{ NULL } \
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}
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/* Structure describing a single host */
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struct ng_bridge_host {
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u_char addr[6]; /* ethernet address */
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u_int16_t linkNum; /* link where addr can be found */
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u_int16_t age; /* seconds ago entry was created */
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u_int16_t staleness; /* seconds ago host last heard from */
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};
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/* Keep this in sync with the above structure definition */
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#define NG_BRIDGE_HOST_TYPE_INFO(entype) { \
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{ "addr", (entype) }, \
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{ "linkNum", &ng_parse_uint16_type }, \
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{ "age", &ng_parse_uint16_type }, \
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{ "staleness", &ng_parse_uint16_type }, \
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{ NULL } \
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}
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/* Structure returned by NGM_BRIDGE_GET_TABLE */
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struct ng_bridge_host_ary {
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u_int32_t numHosts;
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struct ng_bridge_host hosts[0];
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};
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/* Keep this in sync with the above structure definition */
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#define NG_BRIDGE_HOST_ARY_TYPE_INFO(harytype) { \
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{ "numHosts", &ng_parse_uint32_type }, \
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{ "hosts", (harytype) }, \
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{ NULL } \
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}
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/* Netgraph control messages */
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enum {
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NGM_BRIDGE_SET_CONFIG = 1, /* set node configuration */
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NGM_BRIDGE_GET_CONFIG, /* get node configuration */
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NGM_BRIDGE_RESET, /* reset (forget) all information */
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NGM_BRIDGE_GET_STATS, /* get link stats */
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NGM_BRIDGE_CLR_STATS, /* clear link stats */
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NGM_BRIDGE_GETCLR_STATS, /* atomically get & clear link stats */
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NGM_BRIDGE_GET_TABLE, /* get link table */
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};
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#endif /* _NETGRAPH_NG_BRIDGE_H_ */
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