summaryrefslogtreecommitdiff
path: root/include/linux/if_ether.h
blob: 0d62aefa0dc95c1e999ae4f7d28e1ba08a49fba9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Global definitions for the Ethernet IEEE 802.3 interface.
 *
 * Version:	@(#)if_ether.h	1.0.1a	02/08/94
 *
 * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *		Donald Becker, <becker@super.org>
 *		Alan Cox, <alan@lxorguk.ukuu.org.uk>
 *		Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */

#ifndef _UAPI_LINUX_IF_ETHER_H
#define _UAPI_LINUX_IF_ETHER_H

#include <linux/types.h>

/*
 *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
 *	and FCS/CRC (frame check sequence).
 */

#define ETH_ALEN	6	/* Octets in one ethernet addr   */
#define ETH_TLEN	2	/* Octets in ethernet type field */
#define ETH_HLEN	14	/* Total octets in header.       */
#define ETH_ZLEN	60	/* Min. octets in frame sans FCS */
#define ETH_DATA_LEN	1500	/* Max. octets in payload        */
#define ETH_FRAME_LEN	1514	/* Max. octets in frame sans FCS */
#define ETH_FCS_LEN	4	/* Octets in the FCS             */

#define ETH_MIN_MTU	68	/* Min IPv4 MTU per RFC791       */
#define ETH_MAX_MTU	0xFFFFU	/* 65535, same as IP_MAX_MTU     */

/*
 *	These are the defined Ethernet Protocol ID's.
 */

#define ETH_P_LOOP	0x0060	/* Ethernet Loopback packet     */
#define ETH_P_PUP	0x0200	/* Xerox PUP packet             */
#define ETH_P_PUPAT	0x0201	/* Xerox PUP Addr Trans packet  */
#define ETH_P_TSN	0x22F0	/* TSN (IEEE 1722) packet       */
#define ETH_P_ERSPAN2	0x22EB	/* ERSPAN version 2 (type III)  */
#define ETH_P_IP	0x0800	/* Internet Protocol packet     */
#define ETH_P_X25	0x0805	/* CCITT X.25                   */
#define ETH_P_ARP	0x0806	/* Address Resolution packet    */
#define ETH_P_BPQ	0x08FF	/* G8BPQ AX.25 Ethernet Packet  */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_IEEEPUP	0x0a00	/* Xerox IEEE802.3 PUP packet   */
#define ETH_P_IEEEPUPAT	0x0a01	/* Xerox IEEE802.3 PUP Addr Trans packet */
#define ETH_P_BATMAN	0x4305	/* B.A.T.M.A.N.-Advanced packet */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_DEC	0x6000	/* DEC Assigned proto           */
#define ETH_P_DNA_DL	0x6001	/* DEC DNA Dump/Load            */
#define ETH_P_DNA_RC	0x6002	/* DEC DNA Remote Console       */
#define ETH_P_DNA_RT	0x6003	/* DEC DNA Routing              */
#define ETH_P_LAT	0x6004	/* DEC LAT                      */
#define ETH_P_DIAG	0x6005	/* DEC Diagnostics              */
#define ETH_P_CUST	0x6006	/* DEC Customer use             */
#define ETH_P_SCA	0x6007	/* DEC Systems Comms Arch       */
#define ETH_P_TEB	0x6558	/* Trans Ether Bridging         */
#define ETH_P_RARP	0x8035	/* Reverse Addr Res packet      */
#define ETH_P_ATALK	0x809B	/* Appletalk DDP                */
#define ETH_P_AARP	0x80F3	/* Appletalk AARP               */
#define ETH_P_8021Q	0x8100	/* 802.1Q VLAN Extended Header  */
#define ETH_P_ERSPAN	0x88BE	/* ERSPAN type II               */
#define ETH_P_IPX	0x8137	/* IPX over DIX                 */
#define ETH_P_IPV6	0x86DD	/* IPv6 over bluebook           */
#define ETH_P_PAUSE	0x8808	/* IEEE Pause frames. See 802.3 31B */
#define ETH_P_SLOW	0x8809	/* Slow Protocol. See 802.3ad 43B */
#define ETH_P_WCCP	0x883E	/* Web-cache coordination */
				/* protocol defined in */
				/* draft-wilson-wrec-wccp-v2-00.txt */
#define ETH_P_MPLS_UC	0x8847	/* MPLS Unicast traffic         */
#define ETH_P_MPLS_MC	0x8848	/* MPLS Multicast traffic       */
#define ETH_P_ATMMPOA	0x884c	/* MultiProtocol Over ATM       */
#define ETH_P_PPP_DISC	0x8863	/* PPPoE discovery messages     */
#define ETH_P_PPP_SES	0x8864	/* PPPoE session messages       */
#define ETH_P_LINK_CTL	0x886c	/* HPNA, wlan link local tunnel */
#define ETH_P_ATMFATE	0x8884	/* Frame-based ATM Transport over Ethernet */
#define ETH_P_PAE	0x888E	/* Port Access Entity (IEEE 802.1X) */
#define ETH_P_AOE	0x88A2	/* ATA over Ethernet            */
#define ETH_P_8021AD	0x88A8	/* 802.1ad Service VLAN         */
#define ETH_P_802_EX1	0x88B5	/* 802.1 Local Experimental 1.  */
#define ETH_P_PREAUTH	0x88C7	/* 802.11 Preauthentication     */
#define ETH_P_TIPC	0x88CA	/* TIPC                         */
#define ETH_P_MACSEC	0x88E5	/* 802.1ae MACsec               */
#define ETH_P_8021AH	0x88E7	/* 802.1ah Backbone Service Tag */
#define ETH_P_MVRP	0x88F5	/* 802.1Q MVRP                  */
#define ETH_P_1588	0x88F7	/* IEEE 1588 Timesync           */
#define ETH_P_NCSI	0x88F8	/* NCSI protocol                */
#define ETH_P_PRP	0x88FB	/* IEC 62439-3 PRP/HSRv0        */
#define ETH_P_FCOE	0x8906	/* Fibre Channel over Ethernet  */
#define ETH_P_IBOE	0x8915	/* Infiniband over Ethernet     */
#define ETH_P_TDLS	0x890D	/* TDLS                         */
#define ETH_P_FIP	0x8914	/* FCoE Initialization Protocol */
#define ETH_P_80221	0x8917	/* IEEE 802.21 Media Independent */
				/* Handover Protocol            */
#define ETH_P_HSR	0x892F	/* IEC 62439-3 HSRv1            */
#define ETH_P_NSH	0x894F	/* Network Service Header       */
#define ETH_P_LOOPBACK	0x9000	/* Ethernet loopback packet, per IEEE 802.3 */
#define ETH_P_QINQ1	0x9100	/* deprecated QinQ VLAN         */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_QINQ2	0x9200	/* deprecated QinQ VLAN         */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_QINQ3	0x9300	/* deprecated QinQ VLAN]        */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_EDSA	0xDADA	/* Ethertype DSA                */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_IFE	0xED3E	/* ForCES inter-FE LFB type     */
#define ETH_P_AF_IUCV   0xFBFB	/* IBM af_iucv                  */
				/* [ NOT AN OFFICIALLY REGISTERED ID ] */

#define ETH_P_802_3_MIN	0x0600	/* If the value in the ethernet type is less */
				/* than this value then the frame is Ethernet */
				/* II. Else it is 802.3 */

/*
 *	Non DIX types. Won't clash for 1500 types.
 */

#define ETH_P_802_3	0x0001	/* Dummy type for 802.3 frames  */
#define ETH_P_AX25	0x0002	/* Dummy protocol id for AX.25  */
#define ETH_P_ALL	0x0003	/* Every packet (be careful!!!) */
#define ETH_P_802_2	0x0004	/* 802.2 frames                 */
#define ETH_P_SNAP	0x0005	/* Internal only                */
#define ETH_P_DDCMP	0x0006	/* DEC DDCMP: Internal only     */
#define ETH_P_WAN_PPP	0x0007	/* Dummy type for WAN PPP frames*/
#define ETH_P_PPP_MP	0x0008	/* Dummy type for PPP MP frames */
#define ETH_P_LOCALTALK	0x0009	/* Localtalk pseudo type        */
#define ETH_P_CAN	0x000C	/* CAN: Controller Area Network */
#define ETH_P_CANFD	0x000D	/* CANFD: CAN flexible data rate*/
#define ETH_P_PPPTALK	0x0010	/* Dummy type for Atalk over PPP*/
#define ETH_P_TR_802_2	0x0011	/* 802.2 frames                 */
#define ETH_P_MOBITEX	0x0015	/* Mobitex (kaz@cafe.net)       */
#define ETH_P_CONTROL	0x0016	/* Card specific control frames */
#define ETH_P_IRDA	0x0017	/* Linux-IrDA                   */
#define ETH_P_ECONET	0x0018	/* Acorn Econet                 */
#define ETH_P_HDLC	0x0019	/* HDLC frames                  */
#define ETH_P_ARCNET	0x001A	/* 1A for ArcNet :-)            */
#define ETH_P_DSA	0x001B	/* Distributed Switch Arch      */
#define ETH_P_TRAILER	0x001C	/* Trailer switch tagging       */
#define ETH_P_PHONET	0x00F5	/* Nokia Phonet frames          */
#define ETH_P_IEEE802154 0x00F6	/* IEEE802.15.4 frame           */
#define ETH_P_CAIF	0x00F7	/* ST-Ericsson CAIF protocol    */
#define ETH_P_XDSA	0x00F8	/* Multiplexed DSA protocol     */
#define ETH_P_MAP	0x00F9	/* Qualcomm multiplexing and    */
				/* aggregation protocol         */

/* The following macros come from Linux kernel include/linux/if_vlan.h */

#define VLAN_HLEN	4	/* The additional bytes required by VLAN */
				/* (in addition to the Ethernet header)  */
#define VLAN_ETH_HLEN	18	/* Total octets in header.               */
#define VLAN_ETH_ZLEN	64	/* Min. octets in frame sans FCS         */

/*
 * According to 802.3ac, the packet can be 4 bytes longer. --Klika Jan
 */
#define VLAN_ETH_DATA_LEN	1500	/* Max. octets in payload        */
#define VLAN_ETH_FRAME_LEN	1518	/* Max. octets in frame sans FCS */

#define VLAN_PRIO_MASK		0xe000	/* Priority Code Point           */
#define VLAN_PRIO_SHIFT		13
#define VLAN_CFI_MASK		0x1000	/* Canonical Format Indicator    */
#define VLAN_TAG_PRESENT	VLAN_CFI_MASK
#define VLAN_VID_MASK		0x0fff	/* VLAN Identifier               */
#define VLAN_N_VID		4096

#endif /* _UAPI_LINUX_IF_ETHER_H */