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64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
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/*
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* Mach Operating System
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* Copyright (c) 1987 Carnegie-Mellon University
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* All rights reserved. The CMU software License Agreement specifies
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* the terms and conditions for use and redistribution.
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*/
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/*
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* Copyright (c) 1982, 1986 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of California at Berkeley. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*
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* HISTORY
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* 09-Apr-90 Bradley Taylor (btaylor) at NeXT, Inc.
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* Created. Originally part of <netinet/if_ether.h>.
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*/
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#ifndef _ETHERDEFS_
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#define _ETHERDEFS_
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/*
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* Ethernet address - 6 octets
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*/
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struct ether_addr {
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u_char ether_addr_octet[6];
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};
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/*
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* Structure of a 10Mb/s Ethernet header.
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*/
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struct ether_header {
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u_char ether_dhost[6];
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u_char ether_shost[6];
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u_short ether_type;
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};
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#define IFTYPE_ETHERNET "10MB Ethernet"
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#define ETHERTYPE_PUP 0x0200 /* PUP protocol */
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#define ETHERTYPE_IP 0x0800 /* IP protocol */
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#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
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#define ETHERTYPE_REVARP 0x8035 /* Reverse ARP (SUN_RPC) */
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/*
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* The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
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* (type-ETHERTYPE_TRAIL)*512 bytes of data followed
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* by an ETHER type (as given above) and then the (variable-length) header.
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*/
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#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */
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#define ETHERTYPE_NTRAILER 16
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#define ETHERHDRSIZE 14
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#define ETHERMTU 1500
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#define ETHERMIN (60-ETHERHDRSIZE)
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#endif /* _ETHERDEFS_ */
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