1 #ifndef TINC_ETHERNET_H 2 #define TINC_ETHERNET_H 3 4 /* 5 ethernet.h -- missing Ethernet related definitions 6 Copyright (C) 2005 Ivo Timmermans 7 2006 Guus Sliepen <guus@tinc-vpn.org> 8 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. 13 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. 18 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. 22 */ 23 24 #ifndef ETH_ALEN 25 #define ETH_ALEN 6 26 #endif 27 28 #ifndef ARPHRD_ETHER 29 #define ARPHRD_ETHER 1 30 #endif 31 32 #ifndef ETH_P_IP 33 #define ETH_P_IP 0x0800 34 #endif 35 36 #ifndef ETH_P_ARP 37 #define ETH_P_ARP 0x0806 38 #endif 39 40 #ifndef ETH_P_IPV6 41 #define ETH_P_IPV6 0x86DD 42 #endif 43 44 #ifndef ETH_P_8021Q 45 #define ETH_P_8021Q 0x8100 46 #endif 47 48 #ifndef HAVE_STRUCT_ETHER_HEADER 49 struct ether_header { 50 uint8_t ether_dhost[ETH_ALEN]; 51 uint8_t ether_shost[ETH_ALEN]; 52 uint16_t ether_type; 53 } __attribute__((__packed__)); 54 #endif 55 56 #ifndef HAVE_STRUCT_ARPHDR 57 struct arphdr { 58 uint16_t ar_hrd; 59 uint16_t ar_pro; 60 uint8_t ar_hln; 61 uint8_t ar_pln; 62 uint16_t ar_op; 63 } __attribute__((__packed__)); 64 65 #define ARPOP_REQUEST 1 66 #define ARPOP_REPLY 2 67 #define ARPOP_RREQUEST 3 68 #define ARPOP_RREPLY 4 69 #define ARPOP_InREQUEST 8 70 #define ARPOP_InREPLY 9 71 #define ARPOP_NAK 10 72 #endif 73 74 #ifndef HAVE_STRUCT_ETHER_ARP 75 struct ether_arp { 76 struct arphdr ea_hdr; 77 uint8_t arp_sha[ETH_ALEN]; 78 uint8_t arp_spa[4]; 79 uint8_t arp_tha[ETH_ALEN]; 80 uint8_t arp_tpa[4]; 81 } __attribute__((__packed__)); 82 #define arp_hrd ea_hdr.ar_hrd 83 #define arp_pro ea_hdr.ar_pro 84 #define arp_hln ea_hdr.ar_hln 85 #define arp_pln ea_hdr.ar_pln 86 #define arp_op ea_hdr.ar_op 87 #endif 88 89 #endif 90