1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * ethernet.h header for common Ethernet declarations. 28 */ 29 30 #ifndef _SYS_ETHERNET_H 31 #define _SYS_ETHERNET_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #define ETHERADDRL (6) /* ethernet address length in octets */ 40 #define ETHERFCSL (4) /* ethernet FCS length in octets */ 41 42 /* 43 * Ethernet address - 6 octets 44 */ 45 typedef uchar_t ether_addr_t[ETHERADDRL]; 46 47 /* 48 * Ethernet address - 6 octets 49 */ 50 struct ether_addr { 51 ether_addr_t ether_addr_octet; 52 }; 53 54 /* 55 * Structure of a 10Mb/s Ethernet header. 56 */ 57 struct ether_header { 58 struct ether_addr ether_dhost; 59 struct ether_addr ether_shost; 60 ushort_t ether_type; 61 }; 62 63 #define ETHER_CFI 0 64 65 struct ether_vlan_header { 66 struct ether_addr ether_dhost; 67 struct ether_addr ether_shost; 68 ushort_t ether_tpid; 69 ushort_t ether_tci; 70 ushort_t ether_type; 71 }; 72 73 /* 74 * The VLAN tag. Available for applications that cannot make use of struct 75 * ether_vlan_header because they assume Ethernet encapsulation. 76 */ 77 struct ether_vlan_extinfo { 78 ushort_t ether_tci; 79 ushort_t ether_type; 80 }; 81 82 #define ETHERTYPE_PUP (0x0200) /* PUP protocol */ 83 #define ETHERTYPE_802_MIN (0x0600) /* Min valid ethernet type */ 84 /* under IEEE 802.3 rules */ 85 #define ETHERTYPE_IP (0x0800) /* IP protocol */ 86 #define ETHERTYPE_ARP (0x0806) /* Addr. resolution protocol */ 87 #define ETHERTYPE_REVARP (0x8035) /* Reverse ARP */ 88 #define ETHERTYPE_AT (0x809b) /* AppleTalk protocol */ 89 #define ETHERTYPE_AARP (0x80f3) /* AppleTalk ARP */ 90 #define ETHERTYPE_VLAN (0x8100) /* 802.1Q VLAN */ 91 #define ETHERTYPE_IPV6 (0x86dd) /* IPv6 */ 92 #define ETHERTYPE_SLOW (0x8809) /* Slow Protocol */ 93 #define ETHERTYPE_PPPOED (0x8863) /* PPPoE Discovery Stage */ 94 #define ETHERTYPE_PPPOES (0x8864) /* PPPoE Session Stage */ 95 #define ETHERTYPE_MAX (0xffff) /* Max valid ethernet type */ 96 97 /* 98 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have 99 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed 100 * by an ETHER type (as given above) and then the (variable-length) header. 101 */ 102 #define ETHERTYPE_TRAIL (0x1000) /* Trailer packet */ 103 #define ETHERTYPE_NTRAILER (16) 104 105 #define ETHERMTU (1500) /* max frame w/o header or fcs */ 106 #define ETHERMIN (60) /* min frame w/header w/o fcs */ 107 #define ETHERMAX (1514) /* max frame w/header w/o fcs */ 108 109 /* 110 * Compare two Ethernet addresses - assumes that the two given 111 * pointers can be referenced as shorts. On architectures 112 * where this is not the case, use bcmp instead. Note that like 113 * bcmp, we return zero if they are the SAME. 114 */ 115 116 #if defined(__sparc) || defined(__i386) || defined(__amd64) 117 #define ether_cmp(a, b) (((short *)b)[2] != ((short *)a)[2] || \ 118 ((short *)b)[1] != ((short *)a)[1] || \ 119 ((short *)b)[0] != ((short *)a)[0]) 120 #else 121 #define ether_cmp(a, b) (bcmp((caddr_t)a, (caddr_t)b, 6)) 122 #endif 123 124 /* 125 * Copy Ethernet addresses from a to b - assumes that the two given 126 * pointers can be referenced as shorts. On architectures 127 * where this is not the case, use bcopy instead. 128 */ 129 130 #if defined(__sparc) || defined(__i386) || defined(__amd64) 131 #define ether_copy(a, b) { ((short *)b)[0] = ((short *)a)[0]; \ 132 ((short *)b)[1] = ((short *)a)[1]; ((short *)b)[2] = ((short *)a)[2]; } 133 #else 134 #define ether_copy(a, b) (bcopy((caddr_t)a, (caddr_t)b, 6)) 135 #endif 136 137 #ifdef _KERNEL 138 extern int localetheraddr(struct ether_addr *, struct ether_addr *); 139 extern char *ether_sprintf(struct ether_addr *); 140 extern int ether_aton(char *, uchar_t *); 141 #else /* _KERNEL */ 142 #ifdef __STDC__ 143 extern char *ether_ntoa(const struct ether_addr *); 144 extern struct ether_addr *ether_aton(const char *); 145 extern int ether_ntohost(char *, const struct ether_addr *); 146 extern int ether_hostton(const char *, struct ether_addr *); 147 extern int ether_line(const char *, struct ether_addr *, char *); 148 #else /* __STDC__ */ 149 extern char *ether_ntoa(); 150 extern struct ether_addr *ether_aton(); 151 extern int ether_ntohost(); 152 extern int ether_hostton(); 153 extern int ether_line(); 154 #endif /* __STDC__ */ 155 #endif /* _KERNEL */ 156 157 #ifdef __cplusplus 158 } 159 #endif 160 161 #endif /* _SYS_ETHERNET_H */ 162