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 2009 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 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #define ETHERADDRL (6) /* ethernet address length in octets */ 38 #define ETHERFCSL (4) /* ethernet FCS length in octets */ 39 40 /* 41 * Ethernet address - 6 octets 42 */ 43 typedef uchar_t ether_addr_t[ETHERADDRL]; 44 45 /* 46 * Ethernet address - 6 octets 47 */ 48 struct ether_addr { 49 ether_addr_t ether_addr_octet; 50 }; 51 52 /* 53 * Structure of a 10Mb/s Ethernet header. 54 */ 55 struct ether_header { 56 struct ether_addr ether_dhost; 57 struct ether_addr ether_shost; 58 ushort_t ether_type; 59 }; 60 61 #define ETHER_CFI 0 62 63 struct ether_vlan_header { 64 struct ether_addr ether_dhost; 65 struct ether_addr ether_shost; 66 ushort_t ether_tpid; 67 ushort_t ether_tci; 68 ushort_t ether_type; 69 }; 70 71 /* 72 * The VLAN tag. Available for applications that cannot make use of struct 73 * ether_vlan_header because they assume Ethernet encapsulation. 74 */ 75 struct ether_vlan_extinfo { 76 ushort_t ether_tci; 77 ushort_t ether_type; 78 }; 79 80 #define ETHERTYPE_PUP (0x0200) /* PUP protocol */ 81 #define ETHERTYPE_802_MIN (0x0600) /* Min valid ethernet type */ 82 /* under IEEE 802.3 rules */ 83 #define ETHERTYPE_IP (0x0800) /* IP protocol */ 84 #define ETHERTYPE_ARP (0x0806) /* Addr. resolution protocol */ 85 #define ETHERTYPE_REVARP (0x8035) /* Reverse ARP */ 86 #define ETHERTYPE_AT (0x809b) /* AppleTalk protocol */ 87 #define ETHERTYPE_AARP (0x80f3) /* AppleTalk ARP */ 88 #define ETHERTYPE_VLAN (0x8100) /* 802.1Q VLAN */ 89 #define ETHERTYPE_IPV6 (0x86dd) /* IPv6 */ 90 #define ETHERTYPE_SLOW (0x8809) /* Slow Protocol */ 91 #define ETHERTYPE_PPPOED (0x8863) /* PPPoE Discovery Stage */ 92 #define ETHERTYPE_PPPOES (0x8864) /* PPPoE Session Stage */ 93 #define ETHERTYPE_EAPOL (0x888e) /* EAPOL protocol */ 94 #define ETHERTYPE_RSN_PREAUTH (0x88c7) /* RSN PRE-Authentication */ 95 #define ETHERTYPE_FCOE (0x8906) /* FCoE */ 96 #define ETHERTYPE_MAX (0xffff) /* Max valid ethernet type */ 97 98 /* 99 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have 100 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed 101 * by an ETHER type (as given above) and then the (variable-length) header. 102 */ 103 #define ETHERTYPE_TRAIL (0x1000) /* Trailer packet */ 104 #define ETHERTYPE_NTRAILER (16) 105 106 #define ETHERMTU (1500) /* max frame w/o header or fcs */ 107 #define ETHERMIN (60) /* min frame w/header w/o fcs */ 108 #define ETHERMAX (1514) /* max frame w/header w/o fcs */ 109 110 /* 111 * Compare two Ethernet addresses - assumes that the two given 112 * pointers can be referenced as shorts. On architectures 113 * where this is not the case, use bcmp instead. Note that like 114 * bcmp, we return zero if they are the SAME. 115 */ 116 117 #if defined(__sparc) || defined(__i386) || defined(__amd64) 118 #define ether_cmp(a, b) (((short *)b)[2] != ((short *)a)[2] || \ 119 ((short *)b)[1] != ((short *)a)[1] || \ 120 ((short *)b)[0] != ((short *)a)[0]) 121 #else 122 #define ether_cmp(a, b) (bcmp((caddr_t)a, (caddr_t)b, 6)) 123 #endif 124 125 /* 126 * Copy Ethernet addresses from a to b - assumes that the two given 127 * pointers can be referenced as shorts. On architectures 128 * where this is not the case, use bcopy instead. 129 */ 130 131 #if defined(__sparc) || defined(__i386) || defined(__amd64) 132 #define ether_copy(a, b) { ((short *)b)[0] = ((short *)a)[0]; \ 133 ((short *)b)[1] = ((short *)a)[1]; ((short *)b)[2] = ((short *)a)[2]; } 134 #else 135 #define ether_copy(a, b) (bcopy((caddr_t)a, (caddr_t)b, 6)) 136 #endif 137 138 #ifdef _KERNEL 139 extern int localetheraddr(struct ether_addr *, struct ether_addr *); 140 extern char *ether_sprintf(struct ether_addr *); 141 extern int ether_aton(char *, uchar_t *); 142 #else /* _KERNEL */ 143 #ifdef __STDC__ 144 extern char *ether_ntoa(const struct ether_addr *); 145 extern struct ether_addr *ether_aton(const char *); 146 extern int ether_ntohost(char *, const struct ether_addr *); 147 extern int ether_hostton(const char *, struct ether_addr *); 148 extern int ether_line(const char *, struct ether_addr *, char *); 149 #else /* __STDC__ */ 150 extern char *ether_ntoa(); 151 extern struct ether_addr *ether_aton(); 152 extern int ether_ntohost(); 153 extern int ether_hostton(); 154 extern int ether_line(); 155 #endif /* __STDC__ */ 156 #endif /* _KERNEL */ 157 158 #ifdef __cplusplus 159 } 160 #endif 161 162 #endif /* _SYS_ETHERNET_H */ 163