1 /*
2 *
3 * Copyright (c) 2003 The Regents of the University of California. All
4 * rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * - Neither the name of the University nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
25 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 */
30
31
32 /*
33 * Structs for talking to the neighbor service
34 *
35 * $Id: neighbor_structs.h,v 1.2 2004-10-26 18:46:15 girod Exp $
36 */
37
38 #ifndef __NEIGHBOR_STRUCTS_H__
39 #define __NEIGHBOR_STRUCTS_H__
40
41
42 /* States that a neighbor can be in */
43 typedef enum {
44 NB_UNKNOWN = 0, /* Initial state (you should never see this) */
45 SELF = 1, /* Nodes have entries for themselves */
46 ASYMMETRIC = 2, /* We hear them; they can't hear us */
47 ACTIVE = 3, /* We hear them and they hear us */
48 DEAD = 4, /* Was active and has since timed out */
49 } neighbor_state_t;
50
51 /*
52 * State about a particular neighbor -- The information that is
53 * exported to users of the daemon
54 */
55 typedef struct neighbor {
56 node_id_t node_id; /* Neighbor's node ID */
57 if_id_t if_id; /* Neighbor's network interface ID */
58 loc_t loc; /* Neighbor's claimed location */
59 uint8_t interface; /* interface index */
60 neighbor_state_t state:8; /* state: ACTIVE, DEAD, etc. */
61 uint16_t pad; /* alignment pad */
62 conn_t conn_from; /* percentage (%) of packets successfully
63 RECEIVED from this neighbor (IN) */
64 conn_t conn_to; /* percentage (%) of packets successfully
65 SENT to this neighbor (OUT) */
66 int period; /* Neighbor's claimed HB period (ms) */
67 struct timeval last_heard; /* Time we last heard from this neigh */
68 struct timeval last_ack; /* Time we sent the last pkt that the
69 neighbor reported having received */
70 } neighbor_t;
71
72 #endif /* __NEIGHBOR_STRUCTS_H__ */
73
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