| 1 | /* Modified for emx by hv 1994,1996
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| 2 | * Modified for gcc by bird 2003
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| 3 | *
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| 4 | * Copyright (c) 1982, 1986 Regents of the University of California.
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| 5 | * All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * 3. All advertising materials mentioning features or use of this software
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| 16 | * must display the following acknowledgement:
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| 17 | * This product includes software developed by the University of
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| 18 | * California, Berkeley and its contributors.
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| 19 | * 4. Neither the name of the University nor the names of its contributors
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| 20 | * may be used to endorse or promote products derived from this software
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| 21 | * without specific prior written permission.
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| 22 | *
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 33 | * SUCH DAMAGE.
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| 34 | *
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| 35 | * from: @(#)if_ether.h 7.5 (Berkeley) 6/28/90
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| 36 | * $Id: if_ether.h,v 1.8 1994/02/02 05:58:54 hpeyerl Exp $
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| 37 | */
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| 38 |
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| 39 | #ifndef _NETINET_IF_ETHER_H_
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| 40 | #define _NETINET_IF_ETHER_H_
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| 41 |
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| 42 | #ifdef TCPV40HDRS
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| 43 |
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| 44 | /*
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| 45 | * Structure of a 10Mb/s Ethernet header.
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| 46 | */
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| 47 | struct ether_header {
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| 48 | u_char ether_dhost[6];
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| 49 | u_char ether_shost[6];
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| 50 | u_short ether_type;
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| 51 | };
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| 52 |
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| 53 | #define ETHERTYPE_PUP 0x0200 /* PUP protocol */
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| 54 | #define ETHERTYPE_IP 0x0800 /* IP protocol */
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| 55 | #ifdef OS2 /* hv thinks this is just a dirty hack, but we must include it. */
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| 56 | #define ETHERTYPE_ARP 0x0608 /* address resolution protocol */
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| 57 | #else
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| 58 | #define ETHERTYPE_ARP 0x0806 /* address resolution protocol */
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| 59 | #endif
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| 60 |
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| 61 | /*
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| 62 | * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
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| 63 | * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
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| 64 | * by an ETHER type (as given above) and then the (variable-length) header.
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| 65 | */
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| 66 | #define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */
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| 67 | #define ETHERTYPE_NTRAILER 16
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| 68 |
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| 69 | #define ETHERMTU 1500
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| 70 | #define ETHERMIN (60-14)
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| 71 |
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| 72 | /*
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| 73 | * Ethernet Address Resolution Protocol.
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| 74 | *
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| 75 | * See RFC 826 for protocol description. Structure below is adapted
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| 76 | * to resolving internet addresses. Field names used correspond to
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| 77 | * RFC 826.
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| 78 | */
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| 79 | struct ether_arp {
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| 80 | struct arphdr ea_hdr; /* fixed-size header */
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| 81 | u_char arp_sha[6]; /* sender hardware address */
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| 82 | u_char arp_spa[4]; /* sender protocol address */
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| 83 | u_char arp_tha[6]; /* target hardware address */
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| 84 | u_char arp_tpa[4]; /* target protocol address */
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| 85 | };
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| 86 | #define arp_hrd ea_hdr.ar_hrd
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| 87 | #define arp_pro ea_hdr.ar_pro
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| 88 | #define arp_hln ea_hdr.ar_hln
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| 89 | #define arp_pln ea_hdr.ar_pln
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| 90 | #define arp_op ea_hdr.ar_op
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| 91 |
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| 92 |
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| 93 | /*
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| 94 | * Structure shared between the ethernet driver modules and
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| 95 | * the address resolution code. For example, each ec_softc or il_softc
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| 96 | * begins with this structure.
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| 97 | */
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| 98 | struct arpcom {
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| 99 | struct ifnet ac_if; /* network-visible interface */
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| 100 | u_char ac_enaddr[6]; /* ethernet hardware address */
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| 101 | struct in_addr ac_ipaddr; /* copy of ip address- XXX */
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| 102 | /* not os2 */
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| 103 | /* struct ether_multi *ac_multiaddrs;*/ /* list of ether multicast addrs */
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| 104 | /* int ac_multicnt;*/ /* length of ac_multiaddrs list */
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| 105 | };
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| 106 |
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| 107 | /*
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| 108 | * Internet to ethernet address resolution table.
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| 109 | */
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| 110 | #pragma pack(1)
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| 111 | struct arptab {
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| 112 | struct in_addr at_iaddr; /* internet address */
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| 113 | u_char at_enaddr[6]; /* ethernet address */
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| 114 | u_char at_timer; /* minutes since last reference */
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| 115 | u_char at_flags; /* flags */
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| 116 | struct mbuf *at_hold; /* last packet until resolved/timeout */
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| 117 | /* only os2 */
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| 118 | u_short at_rcf; /* token ring routing control field */
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| 119 | u_short at_rseg[8]; /* token ring routing segments */
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| 120 | #ifdef OS2
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| 121 | u_long at_millisec; /* TOD millsecons of last update */
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| 122 | short at_interface; /* interface index */
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| 123 | #endif
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| 124 | };
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| 125 | #pragma pack()
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| 126 |
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| 127 |
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| 128 | #else /*TCPV40HDRS*/
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| 129 |
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| 130 |
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| 131 | #pragma pack(1)
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| 132 | struct sockaddr_inarp {
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| 133 | u_char sin_len;
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| 134 | u_char sin_family;
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| 135 | u_short sin_port;
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| 136 | struct in_addr sin_addr;
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| 137 | struct in_addr sin_srcaddr;
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| 138 | u_short sin_tos;
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| 139 | u_short sin_other;
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| 140 | #define SIN_PROXY 1
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| 141 | };
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| 142 | struct oarptab {
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| 143 | struct in_addr at_iaddr; /* internet address */
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| 144 | u_char at_enaddr[6]; /* ethernet address */
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| 145 | u_char at_timer; /* minutes since last reference */
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| 146 | u_char at_flags; /* flags */
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| 147 | void * at_hold;
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| 148 | u_short at_rcf; /* token ring routing control field */
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| 149 | u_short at_rseg[8]; /* token ring routing segments */
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| 150 | u_long at_millisec; /* TOD milliseconds of last update */
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| 151 | u_short at_interface; /* interface index */
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| 152 | };
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| 153 | #pragma pack()
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| 154 |
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| 155 | /*
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| 156 | * IP and ethernet specific routing flags
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| 157 | */
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| 158 | #define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
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| 159 | #define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
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| 160 |
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| 161 |
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| 162 | #endif /*TCPV40HDRS (else) */
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| 163 |
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| 164 | #endif /* !_NETINET_IF_ETHER_H_ */
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