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 2014 Garrett D'Amore <garrett@damore.org> 23 * 24 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* 29 * ethernet.h header for common Ethernet declarations. 30 */ 31 32 #ifndef _SYS_ETHERNET_H 33 #define _SYS_ETHERNET_H 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_EAPOL (0x888e) /* EAPOL protocol */ 96 #define ETHERTYPE_RSN_PREAUTH (0x88c7) /* RSN PRE-Authentication */ 97 #define ETHERTYPE_TRILL (0x88c8) /* TBD. TRILL frame */ 98 #define ETHERTYPE_FCOE (0x8906) /* FCoE */ 99 #define ETHERTYPE_MAX (0xffff) /* Max valid ethernet type */ 100 101 /* 102 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have 103 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed 104 * by an ETHER type (as given above) and then the (variable-length) header. 105 */ 106 #define ETHERTYPE_TRAIL (0x1000) /* Trailer packet */ 107 #define ETHERTYPE_NTRAILER (16) 108 109 #define ETHERMTU (1500) /* max frame w/o header or fcs */ 110 #define ETHERMIN (60) /* min frame w/header w/o fcs */ 111 #define ETHERMAX (1514) /* max frame w/header w/o fcs */ 112 113 /* 114 * Compare two Ethernet addresses - assumes that the two given 115 * pointers can be referenced as shorts. On architectures 116 * where this is not the case, use bcmp instead. Note that like 117 * bcmp, we return zero if they are the SAME. 118 */ 119 120 #if defined(__sparc) || defined(__i386) || defined(__amd64) 121 #define ether_cmp(a, b) (((short *)b)[2] != ((short *)a)[2] || \ 122 ((short *)b)[1] != ((short *)a)[1] || \ 123 ((short *)b)[0] != ((short *)a)[0]) 124 #else 125 #define ether_cmp(a, b) (bcmp((caddr_t)a, (caddr_t)b, 6)) 126 #endif 127 128 /* 129 * Copy Ethernet addresses from a to b - assumes that the two given 130 * pointers can be referenced as shorts. On architectures 131 * where this is not the case, use bcopy instead. 132 */ 133 134 #if defined(__sparc) || defined(__i386) || defined(__amd64) 135 #define ether_copy(a, b) { ((short *)b)[0] = ((short *)a)[0]; \ 136 ((short *)b)[1] = ((short *)a)[1]; ((short *)b)[2] = ((short *)a)[2]; } 137 #else 138 #define ether_copy(a, b) (bcopy((caddr_t)a, (caddr_t)b, 6)) 139 #endif 140 141 #ifdef _KERNEL 142 extern int localetheraddr(struct ether_addr *, struct ether_addr *); 143 extern char *ether_sprintf(struct ether_addr *); 144 extern int ether_aton(char *, uchar_t *); 145 #else /* _KERNEL */ 146 extern char *ether_ntoa(const struct ether_addr *); 147 extern struct ether_addr *ether_aton(const char *); 148 extern int ether_ntohost(char *, const struct ether_addr *); 149 extern int ether_hostton(const char *, struct ether_addr *); 150 extern int ether_line(const char *, struct ether_addr *, char *); 151 #endif /* _KERNEL */ 152 153 #ifdef __cplusplus 154 } 155 #endif 156 157 #endif /* _SYS_ETHERNET_H */ 158