1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
2 | /* |
3 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
4 | * operating system. INET is implemented using the BSD Socket |
5 | * interface as the means of communication with the user level. |
6 | * |
7 | * Global definitions for the Ethernet IEEE 802.3 interface. |
8 | * |
9 | * Version: @(#)if_ether.h 1.0.1a 02/08/94 |
10 | * |
11 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
12 | * Donald Becker, <becker@super.org> |
13 | * Alan Cox, <alan@lxorguk.ukuu.org.uk> |
14 | * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk> |
15 | * |
16 | * This program is free software; you can redistribute it and/or |
17 | * modify it under the terms of the GNU General Public License |
18 | * as published by the Free Software Foundation; either version |
19 | * 2 of the License, or (at your option) any later version. |
20 | */ |
21 | |
22 | #ifndef _LINUX_IF_ETHER_H |
23 | #define _LINUX_IF_ETHER_H |
24 | |
25 | #include <linux/types.h> |
26 | |
27 | /* |
28 | * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble |
29 | * and FCS/CRC (frame check sequence). |
30 | */ |
31 | |
32 | #define ETH_ALEN 6 /* Octets in one ethernet addr */ |
33 | #define ETH_TLEN 2 /* Octets in ethernet type field */ |
34 | #define ETH_HLEN 14 /* Total octets in header. */ |
35 | #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */ |
36 | #define ETH_DATA_LEN 1500 /* Max. octets in payload */ |
37 | #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */ |
38 | #define ETH_FCS_LEN 4 /* Octets in the FCS */ |
39 | |
40 | #define ETH_MIN_MTU 68 /* Min IPv4 MTU per RFC791 */ |
41 | #define ETH_MAX_MTU 0xFFFFU /* 65535, same as IP_MAX_MTU */ |
42 | |
43 | /* |
44 | * These are the defined Ethernet Protocol ID's. |
45 | */ |
46 | |
47 | #define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */ |
48 | #define ETH_P_PUP 0x0200 /* Xerox PUP packet */ |
49 | #define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */ |
50 | #define ETH_P_TSN 0x22F0 /* TSN (IEEE 1722) packet */ |
51 | #define ETH_P_ERSPAN2 0x22EB /* ERSPAN version 2 (type III) */ |
52 | #define ETH_P_IP 0x0800 /* Internet Protocol packet */ |
53 | #define ETH_P_X25 0x0805 /* CCITT X.25 */ |
54 | #define ETH_P_ARP 0x0806 /* Address Resolution packet */ |
55 | #define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */ |
56 | #define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */ |
57 | #define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */ |
58 | #define ETH_P_BATMAN 0x4305 /* B.A.T.M.A.N.-Advanced packet [ NOT AN OFFICIALLY REGISTERED ID ] */ |
59 | #define ETH_P_DEC 0x6000 /* DEC Assigned proto */ |
60 | #define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */ |
61 | #define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */ |
62 | #define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */ |
63 | #define ETH_P_LAT 0x6004 /* DEC LAT */ |
64 | #define ETH_P_DIAG 0x6005 /* DEC Diagnostics */ |
65 | #define ETH_P_CUST 0x6006 /* DEC Customer use */ |
66 | #define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */ |
67 | #define ETH_P_TEB 0x6558 /* Trans Ether Bridging */ |
68 | #define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */ |
69 | #define ETH_P_ATALK 0x809B /* Appletalk DDP */ |
70 | #define ETH_P_AARP 0x80F3 /* Appletalk AARP */ |
71 | #define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */ |
72 | #define ETH_P_ERSPAN 0x88BE /* ERSPAN type II */ |
73 | #define ETH_P_IPX 0x8137 /* IPX over DIX */ |
74 | #define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */ |
75 | #define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */ |
76 | #define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */ |
77 | #define ETH_P_WCCP 0x883E /* Web-cache coordination protocol |
78 | * defined in draft-wilson-wrec-wccp-v2-00.txt */ |
79 | #define ETH_P_MPLS_UC 0x8847 /* MPLS Unicast traffic */ |
80 | #define ETH_P_MPLS_MC 0x8848 /* MPLS Multicast traffic */ |
81 | #define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */ |
82 | #define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */ |
83 | #define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */ |
84 | #define ETH_P_LINK_CTL 0x886c /* HPNA, wlan link local tunnel */ |
85 | #define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport |
86 | * over Ethernet |
87 | */ |
88 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ |
89 | #define ETH_P_AOE 0x88A2 /* ATA over Ethernet */ |
90 | #define ETH_P_8021AD 0x88A8 /* 802.1ad Service VLAN */ |
91 | #define ETH_P_802_EX1 0x88B5 /* 802.1 Local Experimental 1. */ |
92 | #define ETH_P_PREAUTH 0x88C7 /* 802.11 Preauthentication */ |
93 | #define ETH_P_TIPC 0x88CA /* TIPC */ |
94 | #define ETH_P_LLDP 0x88CC /* Link Layer Discovery Protocol */ |
95 | #define ETH_P_MRP 0x88E3 /* Media Redundancy Protocol */ |
96 | #define ETH_P_MACSEC 0x88E5 /* 802.1ae MACsec */ |
97 | #define ETH_P_8021AH 0x88E7 /* 802.1ah Backbone Service Tag */ |
98 | #define ETH_P_MVRP 0x88F5 /* 802.1Q MVRP */ |
99 | #define ETH_P_1588 0x88F7 /* IEEE 1588 Timesync */ |
100 | #define ETH_P_NCSI 0x88F8 /* NCSI protocol */ |
101 | #define ETH_P_PRP 0x88FB /* IEC 62439-3 PRP/HSRv0 */ |
102 | #define ETH_P_CFM 0x8902 /* Connectivity Fault Management */ |
103 | #define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */ |
104 | #define ETH_P_IBOE 0x8915 /* Infiniband over Ethernet */ |
105 | #define ETH_P_TDLS 0x890D /* TDLS */ |
106 | #define ETH_P_FIP 0x8914 /* FCoE Initialization Protocol */ |
107 | #define ETH_P_80221 0x8917 /* IEEE 802.21 Media Independent Handover Protocol */ |
108 | #define ETH_P_HSR 0x892F /* IEC 62439-3 HSRv1 */ |
109 | #define ETH_P_NSH 0x894F /* Network Service Header */ |
110 | #define ETH_P_LOOPBACK 0x9000 /* Ethernet loopback packet, per IEEE 802.3 */ |
111 | #define ETH_P_QINQ1 0x9100 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */ |
112 | #define ETH_P_QINQ2 0x9200 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */ |
113 | #define ETH_P_QINQ3 0x9300 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */ |
114 | #define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */ |
115 | #define ETH_P_DSA_8021Q 0xDADB /* Fake VLAN Header for DSA [ NOT AN OFFICIALLY REGISTERED ID ] */ |
116 | #define ETH_P_IFE 0xED3E /* ForCES inter-FE LFB type */ |
117 | #define ETH_P_AF_IUCV 0xFBFB /* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */ |
118 | |
119 | #define ETH_P_802_3_MIN 0x0600 /* If the value in the ethernet type is less than this value |
120 | * then the frame is Ethernet II. Else it is 802.3 */ |
121 | |
122 | /* |
123 | * Non DIX types. Won't clash for 1500 types. |
124 | */ |
125 | |
126 | #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */ |
127 | #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */ |
128 | #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */ |
129 | #define ETH_P_802_2 0x0004 /* 802.2 frames */ |
130 | #define ETH_P_SNAP 0x0005 /* Internal only */ |
131 | #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */ |
132 | #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/ |
133 | #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */ |
134 | #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */ |
135 | #define ETH_P_CAN 0x000C /* CAN: Controller Area Network */ |
136 | #define ETH_P_CANFD 0x000D /* CANFD: CAN flexible data rate*/ |
137 | #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/ |
138 | #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */ |
139 | #define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */ |
140 | #define ETH_P_CONTROL 0x0016 /* Card specific control frames */ |
141 | #define ETH_P_IRDA 0x0017 /* Linux-IrDA */ |
142 | #define ETH_P_ECONET 0x0018 /* Acorn Econet */ |
143 | #define ETH_P_HDLC 0x0019 /* HDLC frames */ |
144 | #define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */ |
145 | #define ETH_P_DSA 0x001B /* Distributed Switch Arch. */ |
146 | #define ETH_P_TRAILER 0x001C /* Trailer switch tagging */ |
147 | #define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */ |
148 | #define ETH_P_IEEE802154 0x00F6 /* IEEE802.15.4 frame */ |
149 | #define ETH_P_CAIF 0x00F7 /* ST-Ericsson CAIF protocol */ |
150 | #define ETH_P_XDSA 0x00F8 /* Multiplexed DSA protocol */ |
151 | #define ETH_P_MAP 0x00F9 /* Qualcomm multiplexing and |
152 | * aggregation protocol |
153 | */ |
154 | #define ETH_P_MCTP 0x00FA /* Management component transport |
155 | * protocol packets |
156 | */ |
157 | |
158 | /* |
159 | * This is an Ethernet frame header. |
160 | */ |
161 | |
162 | /* allow libcs like musl to deactivate this, glibc does not implement this. */ |
163 | #ifndef __UAPI_DEF_ETHHDR |
164 | #define __UAPI_DEF_ETHHDR 1 |
165 | #endif |
166 | |
167 | #if __UAPI_DEF_ETHHDR |
168 | struct ethhdr { |
169 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ |
170 | unsigned char h_source[ETH_ALEN]; /* source ether addr */ |
171 | __be16 h_proto; /* packet type ID field */ |
172 | } __attribute__((packed)); |
173 | #endif |
174 | |
175 | |
176 | #endif /* _LINUX_IF_ETHER_H */ |
177 | |