| 1 | /* Modified for emx by hv 1994,1996
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| 2 | * Modified for gcc/os2 by bird 2003
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| 3 | *
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| 4 | * Copyright (c) 1986 Regents of the University of California.
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| 5 | * All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * 3. All advertising materials mentioning features or use of this software
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| 16 | * must display the following acknowledgement:
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| 17 | * This product includes software developed by the University of
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| 18 | * California, Berkeley and its contributors.
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| 19 | * 4. Neither the name of the University nor the names of its contributors
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| 20 | * may be used to endorse or promote products derived from this software
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| 21 | * without specific prior written permission.
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| 22 | *
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 33 | * SUCH DAMAGE.
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| 34 | *
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| 35 | * from: @(#)if_arp.h 7.4 (Berkeley) 6/28/90
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| 36 | * $Id: if_arp.h,v 1.5 1993/09/05 00:46:54 cassidy Exp $
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| 37 | */
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| 38 |
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| 39 | #ifndef _NET_IF_ARP_H_
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| 40 | #define _NET_IF_ARP_H_
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| 41 |
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| 42 | /*
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| 43 | * Address Resolution Protocol.
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| 44 | *
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| 45 | * See RFC 826 for protocol description. ARP packets are variable
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| 46 | * in size; the arphdr structure defines the fixed-length portion.
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| 47 | * Protocol type values are the same as those for 10 Mb/s Ethernet.
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| 48 | * It is followed by the variable-sized fields ar_sha, arp_spa,
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| 49 | * arp_tha and arp_tpa in that order, according to the lengths
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| 50 | * specified. Field names used correspond to RFC 826.
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| 51 | */
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| 52 | #ifndef TCPV40HDR
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| 53 | #pragma pack(1)
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| 54 | #endif
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| 55 | struct arphdr {
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| 56 | u_short ar_hrd; /* format of hardware address */
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| 57 | #define ARPHRD_ETHER 1 /* ethernet hardware address */
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| 58 | #define ARPHRD_802 6 /* 802 net hardware address */
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| 59 | #ifndef TCPV40HDRS
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| 60 | #define ARPHRD_FRELAY 15 /* frame relay hardware format */
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| 61 | #endif
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| 62 | u_short ar_pro; /* format of protocol address */
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| 63 | u_char ar_hln; /* length of hardware address */
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| 64 | u_char ar_pln; /* length of protocol address */
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| 65 | u_short ar_op; /* one of: */
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| 66 | #define ARPOP_REQUEST 1 /* request to resolve address */
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| 67 | #define ARPOP_REPLY 2 /* response to previous request */
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| 68 | #ifndef TCPV40HDRS
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| 69 | #define ARPOP_REVREQUEST 3 /* request protocol address given hardware */
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| 70 | #define ARPOP_REVREPLY 4 /* response giving protocol address */
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| 71 | #define ARPOP_INVREQUEST 8 /* request to identify peer */
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| 72 | #define ARPOP_INVREPLY 9 /* response identifying peer */
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| 73 | #endif
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| 74 | #if 0 /* not OS/2 */
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| 75 | #define REVARP_REQUEST 3 /* reverse ARP request (not IBM) */
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| 76 | #define REVARP_REPLY 4 /* reverse ARP reply (not IBM) */
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| 77 | #endif
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| 78 | /*
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| 79 | * The remaining fields are variable in size,
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| 80 | * according to the sizes above.
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| 81 | */
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| 82 | /* u_char ar_sha[]; * sender hardware address */
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| 83 | /* u_char ar_spa[]; * sender protocol address */
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| 84 | /* u_char ar_tha[]; * target hardware address */
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| 85 | /* u_char ar_tpa[]; * target protocol address */
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| 86 | };
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| 87 | #ifndef TCPV40HDRS
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| 88 | #pragma pack()
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| 89 | #endif
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| 90 |
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| 91 | /*
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| 92 | * ARP ioctl request
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| 93 | */
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| 94 | #ifndef TCPV40HDRS
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| 95 | #pragma pack(4)
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| 96 | #endif
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| 97 | struct arpreq {
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| 98 | struct sockaddr arp_pa; /* protocol address */
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| 99 | struct sockaddr arp_ha; /* hardware address */
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| 100 | int arp_flags; /* flags */
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| 101 | };
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| 102 | #ifndef TCPV40HDRS
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| 103 | #pragma pack()
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| 104 | #endif
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| 105 |
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| 106 | #ifndef TCPV40HDRS
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