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