[2229] | 1 | //////////////////////////////////////////////////////////////////////////////// |
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| 2 | // Copyright (c) 2004 Xilinx, Inc. All rights reserved. |
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| 3 | // |
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| 4 | // Xilinx, Inc. |
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| 5 | // XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A |
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| 6 | // COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS |
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| 7 | // ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR |
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| 8 | // STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION |
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| 9 | // IS FREE FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE |
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| 10 | // FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION. |
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| 11 | // XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO |
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| 12 | // THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO |
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| 13 | // ANY WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE |
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| 14 | // FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY |
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| 15 | // AND FITNESS FOR A PARTICULAR PURPOSE. |
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| 16 | // |
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| 17 | // File : arp.h |
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| 18 | // Date : 2002, March 20. |
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| 19 | // Author : Sathya Thammanur |
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| 20 | // Company: Xilinx |
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| 21 | // Group : Emerging Software Technologies |
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| 22 | // |
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| 23 | // Summary: |
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| 24 | // Header file for ARP |
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| 25 | // |
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| 26 | // $Id: arp.h,v 1.2.8.6 2005/11/15 23:41:10 salindac Exp $ |
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| 27 | // |
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| 28 | //////////////////////////////////////////////////////////////////////////////// |
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| 29 | |
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| 30 | //////////////////////////////////////////////////////////////////////////////// |
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| 31 | // see copyright.txt for Rice University/Mango Communications modifications |
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| 32 | //////////////////////////////////////////////////////////////////////////////// |
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| 33 | |
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| 34 | #ifndef _ARP_H |
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| 35 | #define _ARP_H |
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| 36 | |
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| 37 | #ifdef __cplusplus |
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| 38 | extern "C" { |
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| 39 | #endif |
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| 40 | |
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| 41 | #include <xilnet_eth.h> |
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| 42 | |
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| 43 | /* ARP hardware types */ |
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| 44 | |
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| 45 | #define ARP_HARD_TYPE_ETH 0x01 /* ethernet hardware address */ |
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| 46 | #define ARP_HARD_SIZE 0x06 /* ethernet address size */ |
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| 47 | #define ARP_PROTO_IP_SIZE 0x04 /* ip address size */ |
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| 48 | #define ARP_PAD_SIZE 18 /* no.of bytes to be padded in arp pkt */ |
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| 49 | |
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| 50 | |
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| 51 | /* ARP operation codes */ |
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| 52 | #define ARP_REQ 1 /* ARP request */ |
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| 53 | #define ARP_REPLY 2 /* ARP reply */ |
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| 54 | |
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| 55 | #define ARP_SIP_OFFSET 14 |
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| 56 | #define ARP_DIP_OFFSET 24 |
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| 57 | |
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| 58 | /* |
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| 59 | * This structure defines an ethernet arp header. |
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| 60 | */ |
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| 61 | |
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| 62 | struct xilnet_arp_hdr |
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| 63 | { |
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| 64 | unsigned short hard_type; /* type of hardware address */ |
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| 65 | unsigned short prot_type; /* type of protocol address */ |
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| 66 | unsigned char hard_size; /* hardware address size */ |
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| 67 | unsigned char prot_size; /* protocol address size */ |
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| 68 | unsigned short op; /* arp opcode */ |
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| 69 | }; |
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| 70 | |
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| 71 | struct xilnet_arp_pkt |
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| 72 | { |
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| 73 | struct xilnet_arp_hdr hdr; /* arp header */ |
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| 74 | unsigned char sender_hw[ETH_ADDR_LEN]; /* sender hardware address */ |
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| 75 | unsigned char sender_ip[4]; /* sender IP address */ |
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| 76 | unsigned char target_hw[ETH_ADDR_LEN]; /* target hardware address */ |
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| 77 | unsigned char target_ip[4]; /* target IP address */ |
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| 78 | unsigned char pad[18]; /* pad with 0 for min eth frame requirement */ |
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| 79 | }; |
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| 80 | |
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| 81 | #ifdef __cplusplus |
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| 82 | } |
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| 83 | #endif |
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| 84 | |
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| 85 | #endif /* _ARP_H */ |
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