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: src/sys/netgraph/ng_bridge.h,v 1.4 2005/10/28 14:41:28 ru Exp $
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 };
153
154 #endif /* _NETGRAPH_NG_BRIDGE_H_ */
155
156
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