SimpleLib_03272011
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ethernet.h
00001 /* 00002 * Copyright or � or Copr. 2010, Thomas SOETE 00003 * 00004 * Author e-mail: thomas@soete.org 00005 * Library website : http://mbed.org/users/Alkorin/libraries/SimpleLib/ 00006 * 00007 * This software is governed by the CeCILL license under French law and 00008 * abiding by the rules of distribution of free software. You can use, 00009 * modify and/ or redistribute the software under the terms of the CeCILL 00010 * license as circulated by CEA, CNRS and INRIA at the following URL 00011 * "http://www.cecill.info". 00012 * 00013 * As a counterpart to the access to the source code and rights to copy, 00014 * modify and redistribute granted by the license, users are provided only 00015 * with a limited warranty and the software's author, the holder of the 00016 * economic rights, and the successive licensors have only limited 00017 * liability. 00018 * 00019 * In this respect, the user's attention is drawn to the risks associated 00020 * with loading, using, modifying and/or developing or reproducing the 00021 * software by the user in light of its specific status of free software, 00022 * that may mean that it is complicated to manipulate, and that also 00023 * therefore means that it is reserved for developers and experienced 00024 * professionals having in-depth computer knowledge. Users are therefore 00025 * encouraged to load and test the software's suitability as regards their 00026 * requirements in conditions enabling the security of their systems and/or 00027 * data to be ensured and, more generally, to use and operate it in the 00028 * same conditions as regards security. 00029 * 00030 * The fact that you are presently reading this means that you have had 00031 * knowledge of the CeCILL license and that you accept its terms. 00032 */ 00033 00034 #ifndef __SIMPLELIB_ETHERNET_H__ 00035 #define __SIMPLELIB_ETHERNET_H__ 00036 00037 typedef __packed struct { 00038 char destination[6]; 00039 char source[6]; 00040 uint16_t type; 00041 } ethernet_packet; 00042 #define asETH(x) ((ethernet_packet*)(x)) 00043 00044 #define IPV4_TYPE 0x0800 00045 #define ARP_TYPE 0x0806 00046 00047 typedef __packed struct { 00048 ethernet_packet eth; 00049 __packed struct { 00050 char hardware_type[2]; 00051 char protocol_type[2]; 00052 char hardware_size; 00053 char protocol_size; 00054 uint16_t opcode_request; 00055 char sender_mac[6]; 00056 char sender_ip[4]; 00057 char target_mac[6]; 00058 char target_ip[4]; 00059 } arp; 00060 } arp_packet; 00061 #define asARP(x) ((arp_packet*)(x)) 00062 00063 #define ARP_REQUEST 0x0001 00064 #define ARP_REPLY 0x0002 00065 00066 #endif
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