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- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)if_ether.h 7.3 (Berkeley) 6/29/88
- */
-
- /*
- * Structure of a 10Mb/s Ethernet header.
- */
- struct ether_header {
- u_char ether_dhost[6];
- u_char ether_shost[6];
- u_short ether_type;
- };
-
- #define ETHERTYPE_PUP 0x0200 /* PUP protocol */
- #define ETHERTYPE_IP 0x0800 /* IP protocol */
- #define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
-
- /*
- * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
- * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
- * by an ETHER type (as given above) and then the (variable-length) header.
- */
- #define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */
- #define ETHERTYPE_NTRAILER 16
-
- #define ETHERMTU 1500
- #define ETHERMIN (60-14)
-
- /*
- * Ethernet Address Resolution Protocol.
- *
- * See RFC 826 for protocol description. Structure below is adapted
- * to resolving internet addresses. Field names used correspond to
- * RFC 826.
- */
- struct ether_arp {
- struct arphdr ea_hdr; /* fixed-size header */
- u_char arp_sha[6]; /* sender hardware address */
- u_char arp_spa[4]; /* sender protocol address */
- u_char arp_tha[6]; /* target hardware address */
- u_char arp_tpa[4]; /* target protocol address */
- };
- #define arp_hrd ea_hdr.ar_hrd
- #define arp_pro ea_hdr.ar_pro
- #define arp_hln ea_hdr.ar_hln
- #define arp_pln ea_hdr.ar_pln
- #define arp_op ea_hdr.ar_op
-
-
- /*
- * Structure shared between the ethernet driver modules and
- * the address resolution code. For example, each ec_softc or il_softc
- * begins with this structure.
- */
- struct arpcom {
- struct ifnet ac_if; /* network-visible interface */
- u_char ac_enaddr[6]; /* ethernet hardware address */
- struct in_addr ac_ipaddr; /* copy of ip address- XXX */
- };
-
- /*
- * Internet to ethernet address resolution table.
- */
- struct arptab {
- struct in_addr at_iaddr; /* internet address */
- u_char at_enaddr[6]; /* ethernet address */
- u_char at_timer; /* minutes since last reference */
- u_char at_flags; /* flags */
- struct mbuf *at_hold; /* last packet until resolved/timeout */
- };
-
- #ifdef _KERNEL
- u_char etherbroadcastaddr[6];
- struct arptab *arptnew();
- char *ether_sprintf();
- #endif
-