FreeBSD/Linux Kernel Cross Reference
sys/device/if_ether.h
1 /*
2 * Mach Operating System
3 * Copyright (c) 1991 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie Mellon
24 * the rights to redistribute these changes.
25 */
26 /*
27 * HISTORY
28 * $Log: if_ether.h,v $
29 * Revision 2.4 91/08/03 18:17:37 jsb
30 * Protected against multiple inclusion.
31 * [91/07/24 22:57:01 jsb]
32 *
33 * Revision 2.3 91/05/14 15:48:21 mrt
34 * Correcting copyright
35 *
36 * Revision 2.2 91/02/05 17:09:40 mrt
37 * Changed to new Mach copyright
38 * [91/01/31 17:29:27 mrt]
39 *
40 */
41 /*
42 * Ethernet definitions.
43 */
44 /*
45 * Author: David B. Golub, Carnegie Mellon University
46 * Date: 8/89
47 */
48
49 #ifndef _DEVICE_IF_ETHER_H_
50 #define _DEVICE_IF_ETHER_H_
51
52 #include <sys/types.h>
53
54 /*
55 * Structure of a 10Mb/s Ethernet header.
56 */
57 struct ether_header {
58 u_char ether_dhost[6];
59 u_char ether_shost[6];
60 u_short ether_type;
61 };
62
63 #define ETHERMTU 1500
64 #define ETHERMIN (60-14)
65
66 #ifdef KERNEL
67 u_char etherbroadcastaddr[6];
68
69 extern char * ether_sprintf();
70 #endif KERNEL
71
72 #endif /*_DEVICE_IF_ETHER_H_*/
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