1 #ifndef TINC_ETHERNET_H
2 #define TINC_ETHERNET_H
5 ethernet.h -- missing Ethernet related definitions
6 Copyright (C) 2005 Ivo Timmermans
7 2006 Guus Sliepen <guus@tinc-vpn.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
34 #ifndef ETHER_TYPE_LEN
35 #define ETHER_TYPE_LEN 2
40 #define ARPHRD_ETHER 1
44 #define ETH_P_IP 0x0800
48 #define ETH_P_ARP 0x0806
52 #define ETH_P_IPV6 0x86DD
56 #define ETH_P_8021Q 0x8100
60 #define ETH_P_MAX 0xFFFF
63 #ifndef HAVE_STRUCT_ETHER_HEADER
64 PACKED(struct ether_header {
65 uint8_t ether_dhost[ETH_ALEN];
66 uint8_t ether_shost[ETH_ALEN];
71 STATIC_ASSERT(sizeof(struct ether_header) == 14, "ether_header has incorrect size");
73 #ifndef HAVE_STRUCT_ARPHDR
74 PACKED(struct arphdr {
81 #define ARPOP_REQUEST 1
83 #define ARPOP_RREQUEST 3
84 #define ARPOP_RREPLY 4
85 #define ARPOP_InREQUEST 8
86 #define ARPOP_InREPLY 9
90 STATIC_ASSERT(sizeof(struct arphdr) == 8, "arphdr has incorrect size");
92 #ifndef HAVE_STRUCT_ETHER_ARP
93 PACKED(struct ether_arp {
95 uint8_t arp_sha[ETH_ALEN];
97 uint8_t arp_tha[ETH_ALEN];
100 #define arp_hrd ea_hdr.ar_hrd
101 #define arp_pro ea_hdr.ar_pro
102 #define arp_hln ea_hdr.ar_hln
103 #define arp_pln ea_hdr.ar_pln
104 #define arp_op ea_hdr.ar_op
107 STATIC_ASSERT(sizeof(struct ether_arp) == 28, "ether_arp has incorrect size");