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 * ping.h: The common header file shared between ping.c (ping client)
34 * and pingd.c (ping server). This mostly just defines the
35 * application layer protocol format (over-the-air).
36 *
37 * $Id: glsping.h,v 1.3 2003-07-11 22:30:01 cerpa Exp $
38 */
39
40 #ifndef __PING_H__
41 #define __PING_H__
42
43 #include <sys/types.h>
44
45 #define PING_REQUEST 1
46 #define PING_REPLY 2
47
48 typedef struct ping_pkt {
49 unsigned int cmd:2; /* request or reply, 2 bits */
50 unsigned int random_id:14; /* random client ID, 14 bits */
51 uint16_t seqno; /* sequence number of the ping, 16 bits */
52 node_id_t node_id; /* node ID (it's not part of the link layer) */
53 } ping_pkt_t __attribute__ ((packed));
54
55
56 #endif /* _PING_H__ */
57
58
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