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enc28j60_arp.h

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00001 /*******************************************************************************
00002    enc28j60_arp.h: Implementace protokolu ARP.
00003    Copyright (C) 2010 Brno University of Technology,
00004                       Faculty of Information Technology
00005    Author(s): Martin Musil <xmusil34 AT fit.vutbr.cz>
00006 
00007    LICENSE TERMS
00008 
00009    Redistribution and use in source and binary forms, with or without
00010    modification, are permitted provided that the following conditions
00011    are met:
00012    1. Redistributions of source code must retain the above copyright
00013       notice, this list of conditions and the following disclaimer.
00014    2. Redistributions in binary form must reproduce the above copyright
00015       notice, this list of conditions and the following disclaimer in
00016       the documentation and/or other materials provided with the
00017       distribution.
00018    3. All advertising materials mentioning features or use of this software
00019       or firmware must display the following acknowledgement:
00020 
00021         This product includes software developed by the University of
00022         Technology, Faculty of Information Technology, Brno and its
00023         contributors.
00024 
00025    4. Neither the name of the Company nor the names of its contributors
00026       may be used to endorse or promote products derived from this
00027       software without specific prior written permission.
00028 
00029    This software or firmware is provided ``as is'', and any express or implied
00030    warranties, including, but not limited to, the implied warranties of
00031    merchantability and fitness for a particular purpose are disclaimed.
00032    In no event shall the company or contributors be liable for any
00033    direct, indirect, incidental, special, exemplary, or consequential
00034    damages (including, but not limited to, procurement of substitute
00035    goods or services; loss of use, data, or profits; or business
00036    interruption) however caused and on any theory of liability, whether
00037    in contract, strict liability, or tort (including negligence or
00038    otherwise) arising in any way out of the use of this software, even
00039    if advised of the possibility of such damage.
00040 
00041    $Id$
00042 
00043 *******************************************************************************/ 
00044 
00050 #ifndef _ENC28J60_ARP_
00051 #define _ENC28J60_ARP_
00052 
00057 #define ARP_REQUEST 1           
00058 #define ARP_REPLY 2                     
00059 
00060 #define ETH_HW_TYPE 1           
00061 #define ARP_HEADER_LEN 28       
00062 #define ARP_TABLE_SIZE 6        
00063 #define ARP_RECORD_SIZE 10      
00064 #define MAC_LEN 6                       
00065 
00066 
00070 struct arp_h{
00071         unsigned int hw_type;                           
00072         unsigned int proto_type;                        
00073         unsigned char hw_addr_len;                      
00074         unsigned char proto_addr_len;           
00075         unsigned int operation;                         
00076         unsigned char sender_mac[MAC_LEN];      
00077         unsigned long sender_ip;                        
00078         unsigned char target_mac[MAC_LEN];      
00079         unsigned long target_ip;                        
00080 };
00081 
00086 struct arp_record{
00087         unsigned int ip;                                
00088         unsigned char mac[MAC_LEN];             
00089 };
00090 
00091 
00095 void arp_recv();
00096 
00104 void arp_table_clear();
00105 
00114 char arp_send(unsigned long dest_ip);
00115 
00125 void arp_table_add(int ip,unsigned char* mac);
00126 
00137 unsigned char* arp_table_find(int ip);
00138 
00143 #endif /*_ENC28J60_ARP_*/