Return to if_ether.h CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / sys / netinet

Annotation of 43BSDTahoe/sys/netinet/if_ether.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  *
                     17:  *     @(#)if_ether.h  7.3 (Berkeley) 6/29/88
                     18:  */
                     19: 
                     20: /*
                     21:  * Structure of a 10Mb/s Ethernet header.
                     22:  */
                     23: struct ether_header {
                     24:        u_char  ether_dhost[6];
                     25:        u_char  ether_shost[6];
                     26:        u_short ether_type;
                     27: };
                     28: 
                     29: #define        ETHERTYPE_PUP   0x0200          /* PUP protocol */
                     30: #define        ETHERTYPE_IP    0x0800          /* IP protocol */
                     31: #define ETHERTYPE_ARP  0x0806          /* Addr. resolution protocol */
                     32: 
                     33: /*
                     34:  * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
                     35:  * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
                     36:  * by an ETHER type (as given above) and then the (variable-length) header.
                     37:  */
                     38: #define        ETHERTYPE_TRAIL         0x1000          /* Trailer packet */
                     39: #define        ETHERTYPE_NTRAILER      16
                     40: 
                     41: #define        ETHERMTU        1500
                     42: #define        ETHERMIN        (60-14)
                     43: 
                     44: /*
                     45:  * Ethernet Address Resolution Protocol.
                     46:  *
                     47:  * See RFC 826 for protocol description.  Structure below is adapted
                     48:  * to resolving internet addresses.  Field names used correspond to 
                     49:  * RFC 826.
                     50:  */
                     51: struct ether_arp {
                     52:        struct  arphdr ea_hdr;  /* fixed-size header */
                     53:        u_char  arp_sha[6];     /* sender hardware address */
                     54:        u_char  arp_spa[4];     /* sender protocol address */
                     55:        u_char  arp_tha[6];     /* target hardware address */
                     56:        u_char  arp_tpa[4];     /* target protocol address */
                     57: };
                     58: #define        arp_hrd ea_hdr.ar_hrd
                     59: #define        arp_pro ea_hdr.ar_pro
                     60: #define        arp_hln ea_hdr.ar_hln
                     61: #define        arp_pln ea_hdr.ar_pln
                     62: #define        arp_op  ea_hdr.ar_op
                     63: 
                     64: 
                     65: /*
                     66:  * Structure shared between the ethernet driver modules and
                     67:  * the address resolution code.  For example, each ec_softc or il_softc
                     68:  * begins with this structure.
                     69:  */
                     70: struct arpcom {
                     71:        struct  ifnet ac_if;            /* network-visible interface */
                     72:        u_char  ac_enaddr[6];           /* ethernet hardware address */
                     73:        struct in_addr ac_ipaddr;       /* copy of ip address- XXX */
                     74: };
                     75: 
                     76: /*
                     77:  * Internet to ethernet address resolution table.
                     78:  */
                     79: struct arptab {
                     80:        struct  in_addr at_iaddr;       /* internet address */
                     81:        u_char  at_enaddr[6];           /* ethernet address */
                     82:        u_char  at_timer;               /* minutes since last reference */
                     83:        u_char  at_flags;               /* flags */
                     84:        struct  mbuf *at_hold;          /* last packet until resolved/timeout */
                     85: };
                     86: 
                     87: #ifdef KERNEL
                     88: u_char etherbroadcastaddr[6];
                     89: struct arptab *arptnew();
                     90: char *ether_sprintf();
                     91: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.