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authorArchie Cobbs <archie@FreeBSD.org>2000-09-01 01:37:13 +0000
committerArchie Cobbs <archie@FreeBSD.org>2000-09-01 01:37:13 +0000
commited2dbd316aca41338dbad82208cd24cb96b33faa (patch)
tree910968afe6642bc434a029ca68ea2ab6251cc34b /sys/netgraph/ng_bridge.h
parent405177510cd034e7197559ea22afb5f16eca39f4 (diff)
downloadsrc-ed2dbd316aca41338dbad82208cd24cb96b33faa.tar.gz
src-ed2dbd316aca41338dbad82208cd24cb96b33faa.zip
New netgraph node type for Ethernet bridging.
No ipfw support yet.
Notes
Notes: svn path=/head/; revision=65310
Diffstat (limited to 'sys/netgraph/ng_bridge.h')
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1 files changed, 162 insertions, 0 deletions
diff --git a/sys/netgraph/ng_bridge.h b/sys/netgraph/ng_bridge.h
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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_ */
+