1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /****************************************************************************** 3 * 4 * Copyright(c) 2007 - 2017 Realtek Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of version 2 of the GNU General Public License as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 *****************************************************************************/ 16 17 #ifndef _LINUX_IF_ETHER_H 18 #define _LINUX_IF_ETHER_H 19 20 /* 21 * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble 22 * and FCS/CRC (frame check sequence). 23 */ 24 25 #define ETH_ALEN 6 /* Octets in one ethernet addr */ 26 #define ETH_HLEN 14 /* Total octets in header. */ 27 #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */ 28 #define ETH_DATA_LEN 1500 /* Max. octets in payload */ 29 #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */ 30 31 /* 32 * These are the defined Ethernet Protocol ID's. 33 */ 34 35 #define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */ 36 #define ETH_P_PUP 0x0200 /* Xerox PUP packet */ 37 #define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */ 38 #define ETH_P_IP 0x0800 /* Internet Protocol packet */ 39 #define ETH_P_X25 0x0805 /* CCITT X.25 */ 40 #define ETH_P_ARP 0x0806 /* Address Resolution packet */ 41 #define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */ 42 #define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */ 43 #define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */ 44 #define ETH_P_DEC 0x6000 /* DEC Assigned proto */ 45 #define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */ 46 #define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */ 47 #define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */ 48 #define ETH_P_LAT 0x6004 /* DEC LAT */ 49 #define ETH_P_DIAG 0x6005 /* DEC Diagnostics */ 50 #define ETH_P_CUST 0x6006 /* DEC Customer use */ 51 #define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */ 52 #define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */ 53 #define ETH_P_ATALK 0x809B /* Appletalk DDP */ 54 #define ETH_P_AARP 0x80F3 /* Appletalk AARP */ 55 #define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */ 56 #define ETH_P_IPX 0x8137 /* IPX over DIX */ 57 #define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */ 58 #define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */ 59 #define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */ 60 #define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */ 61 #define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport 62 * over Ethernet 63 */ 64 65 /* 66 * Non DIX types. Won't clash for 1500 types. 67 */ 68 69 #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */ 70 #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */ 71 #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */ 72 #define ETH_P_802_2 0x0004 /* 802.2 frames */ 73 #define ETH_P_SNAP 0x0005 /* Internal only */ 74 #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */ 75 #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/ 76 #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */ 77 #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */ 78 #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/ 79 #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */ 80 #define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */ 81 #define ETH_P_CONTROL 0x0016 /* Card specific control frames */ 82 #define ETH_P_IRDA 0x0017 /* Linux-IrDA */ 83 #define ETH_P_ECONET 0x0018 /* Acorn Econet */ 84 85 /* 86 * This is an Ethernet frame header. 87 */ 88 89 struct ethhdr { 90 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ 91 unsigned char h_source[ETH_ALEN]; /* source ether addr */ 92 unsigned short h_proto; /* packet type ID field */ 93 }; 94 95 struct _vlan { 96 unsigned short h_vlan_TCI; /* Encapsulates priority and VLAN ID */ 97 unsigned short h_vlan_encapsulated_proto; 98 }; 99 100 101 102 #define get_vlan_id(pvlan) ((ntohs((unsigned short)pvlan->h_vlan_TCI)) & 0xfff) 103 #define get_vlan_priority(pvlan) ((ntohs((unsigned short)pvlan->h_vlan_TCI))>>13) 104 #define get_vlan_encap_proto(pvlan) (ntohs((unsigned short)pvlan->h_vlan_encapsulated_proto)) 105 106 107 #endif /* _LINUX_IF_ETHER_H */ 108