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1 | /* |
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | |
3 | * operating system. INET is implemented using the BSD Socket | |
4 | * interface as the means of communication with the user level. | |
5 | * | |
6 | * Global definitions for the ARP (RFC 826) protocol. | |
7 | * | |
8 | * Version: @(#)if_arp.h 1.0.1 04/16/93 | |
9 | * | |
10 | * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 | |
11 | * Portions taken from the KA9Q/NOS (v2.00m PA0GRI) source. | |
02c30a84 | 12 | * Ross Biro |
1da177e4 LT |
13 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
14 | * Florian La Roche, | |
15 | * Jonathan Layes <layes@loran.com> | |
16 | * Arnaldo Carvalho de Melo <acme@conectiva.com.br> ARPHRD_HWX25 | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or | |
19 | * modify it under the terms of the GNU General Public License | |
20 | * as published by the Free Software Foundation; either version | |
21 | * 2 of the License, or (at your option) any later version. | |
22 | */ | |
23 | #ifndef _LINUX_IF_ARP_H | |
24 | #define _LINUX_IF_ARP_H | |
25 | ||
26 | #include <linux/netdevice.h> | |
27 | ||
28 | /* ARP protocol HARDWARE identifiers. */ | |
29 | #define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */ | |
30 | #define ARPHRD_ETHER 1 /* Ethernet 10Mbps */ | |
31 | #define ARPHRD_EETHER 2 /* Experimental Ethernet */ | |
32 | #define ARPHRD_AX25 3 /* AX.25 Level 2 */ | |
33 | #define ARPHRD_PRONET 4 /* PROnet token ring */ | |
34 | #define ARPHRD_CHAOS 5 /* Chaosnet */ | |
35 | #define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */ | |
36 | #define ARPHRD_ARCNET 7 /* ARCnet */ | |
37 | #define ARPHRD_APPLETLK 8 /* APPLEtalk */ | |
38 | #define ARPHRD_DLCI 15 /* Frame Relay DLCI */ | |
39 | #define ARPHRD_ATM 19 /* ATM */ | |
40 | #define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */ | |
41 | #define ARPHRD_IEEE1394 24 /* IEEE 1394 IPv4 - RFC 2734 */ | |
42 | #define ARPHRD_EUI64 27 /* EUI-64 */ | |
43 | #define ARPHRD_INFINIBAND 32 /* InfiniBand */ | |
44 | ||
45 | /* Dummy types for non ARP hardware */ | |
46 | #define ARPHRD_SLIP 256 | |
47 | #define ARPHRD_CSLIP 257 | |
48 | #define ARPHRD_SLIP6 258 | |
49 | #define ARPHRD_CSLIP6 259 | |
50 | #define ARPHRD_RSRVD 260 /* Notional KISS type */ | |
51 | #define ARPHRD_ADAPT 264 | |
52 | #define ARPHRD_ROSE 270 | |
53 | #define ARPHRD_X25 271 /* CCITT X.25 */ | |
54 | #define ARPHRD_HWX25 272 /* Boards with X.25 in firmware */ | |
55 | #define ARPHRD_PPP 512 | |
56 | #define ARPHRD_CISCO 513 /* Cisco HDLC */ | |
57 | #define ARPHRD_HDLC ARPHRD_CISCO | |
58 | #define ARPHRD_LAPB 516 /* LAPB */ | |
59 | #define ARPHRD_DDCMP 517 /* Digital's DDCMP protocol */ | |
60 | #define ARPHRD_RAWHDLC 518 /* Raw HDLC */ | |
61 | ||
62 | #define ARPHRD_TUNNEL 768 /* IPIP tunnel */ | |
63 | #define ARPHRD_TUNNEL6 769 /* IP6IP6 tunnel */ | |
64 | #define ARPHRD_FRAD 770 /* Frame Relay Access Device */ | |
65 | #define ARPHRD_SKIP 771 /* SKIP vif */ | |
66 | #define ARPHRD_LOOPBACK 772 /* Loopback device */ | |
67 | #define ARPHRD_LOCALTLK 773 /* Localtalk device */ | |
68 | #define ARPHRD_FDDI 774 /* Fiber Distributed Data Interface */ | |
69 | #define ARPHRD_BIF 775 /* AP1000 BIF */ | |
70 | #define ARPHRD_SIT 776 /* sit0 device - IPv6-in-IPv4 */ | |
71 | #define ARPHRD_IPDDP 777 /* IP over DDP tunneller */ | |
72 | #define ARPHRD_IPGRE 778 /* GRE over IP */ | |
73 | #define ARPHRD_PIMREG 779 /* PIMSM register interface */ | |
74 | #define ARPHRD_HIPPI 780 /* High Performance Parallel Interface */ | |
75 | #define ARPHRD_ASH 781 /* Nexus 64Mbps Ash */ | |
76 | #define ARPHRD_ECONET 782 /* Acorn Econet */ | |
77 | #define ARPHRD_IRDA 783 /* Linux-IrDA */ | |
78 | /* ARP works differently on different FC media .. so */ | |
79 | #define ARPHRD_FCPP 784 /* Point to point fibrechannel */ | |
80 | #define ARPHRD_FCAL 785 /* Fibrechannel arbitrated loop */ | |
81 | #define ARPHRD_FCPL 786 /* Fibrechannel public loop */ | |
82 | #define ARPHRD_FCFABRIC 787 /* Fibrechannel fabric */ | |
83 | /* 787->799 reserved for fibrechannel media types */ | |
84 | #define ARPHRD_IEEE802_TR 800 /* Magic type ident for TR */ | |
85 | #define ARPHRD_IEEE80211 801 /* IEEE 802.11 */ | |
86 | #define ARPHRD_IEEE80211_PRISM 802 /* IEEE 802.11 + Prism2 header */ | |
3905ec45 | 87 | #define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */ |
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88 | |
89 | #define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */ | |
90 | #define ARPHRD_NONE 0xFFFE /* zero header length */ | |
91 | ||
92 | /* ARP protocol opcodes. */ | |
93 | #define ARPOP_REQUEST 1 /* ARP request */ | |
94 | #define ARPOP_REPLY 2 /* ARP reply */ | |
95 | #define ARPOP_RREQUEST 3 /* RARP request */ | |
96 | #define ARPOP_RREPLY 4 /* RARP reply */ | |
97 | #define ARPOP_InREQUEST 8 /* InARP request */ | |
98 | #define ARPOP_InREPLY 9 /* InARP reply */ | |
99 | #define ARPOP_NAK 10 /* (ATM)ARP NAK */ | |
100 | ||
101 | ||
102 | /* ARP ioctl request. */ | |
103 | struct arpreq { | |
104 | struct sockaddr arp_pa; /* protocol address */ | |
105 | struct sockaddr arp_ha; /* hardware address */ | |
106 | int arp_flags; /* flags */ | |
107 | struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ | |
108 | char arp_dev[16]; | |
109 | }; | |
110 | ||
111 | struct arpreq_old { | |
112 | struct sockaddr arp_pa; /* protocol address */ | |
113 | struct sockaddr arp_ha; /* hardware address */ | |
114 | int arp_flags; /* flags */ | |
115 | struct sockaddr arp_netmask; /* netmask (only for proxy arps) */ | |
116 | }; | |
117 | ||
118 | /* ARP Flag values. */ | |
119 | #define ATF_COM 0x02 /* completed entry (ha valid) */ | |
120 | #define ATF_PERM 0x04 /* permanent entry */ | |
121 | #define ATF_PUBL 0x08 /* publish entry */ | |
122 | #define ATF_USETRAILERS 0x10 /* has requested trailers */ | |
123 | #define ATF_NETMASK 0x20 /* want to use a netmask (only | |
124 | for proxy entries) */ | |
125 | #define ATF_DONTPUB 0x40 /* don't answer this addresses */ | |
126 | ||
127 | /* | |
128 | * This structure defines an ethernet arp header. | |
129 | */ | |
130 | ||
131 | struct arphdr | |
132 | { | |
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133 | __be16 ar_hrd; /* format of hardware address */ |
134 | __be16 ar_pro; /* format of protocol address */ | |
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135 | unsigned char ar_hln; /* length of hardware address */ |
136 | unsigned char ar_pln; /* length of protocol address */ | |
bd6d610a | 137 | __be16 ar_op; /* ARP opcode (command) */ |
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138 | |
139 | #if 0 | |
140 | /* | |
141 | * Ethernet looks like this : This bit is variable sized however... | |
142 | */ | |
143 | unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */ | |
144 | unsigned char ar_sip[4]; /* sender IP address */ | |
145 | unsigned char ar_tha[ETH_ALEN]; /* target hardware address */ | |
146 | unsigned char ar_tip[4]; /* target IP address */ | |
147 | #endif | |
148 | ||
149 | }; | |
150 | ||
151 | #endif /* _LINUX_IF_ARP_H */ |