| 1 | /* $Id: tcpip.h 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * NAT - TCP/IP (declarations/defines).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | /*
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| 19 | * This code is based on:
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| 20 | *
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| 21 | * Copyright (c) 1982, 1986, 1993
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| 22 | * The Regents of the University of California. All rights reserved.
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| 23 | *
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| 24 | * Redistribution and use in source and binary forms, with or without
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| 25 | * modification, are permitted provided that the following conditions
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| 26 | * are met:
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| 27 | * 1. Redistributions of source code must retain the above copyright
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| 28 | * notice, this list of conditions and the following disclaimer.
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| 29 | * 2. Redistributions in binary form must reproduce the above copyright
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| 30 | * notice, this list of conditions and the following disclaimer in the
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| 31 | * documentation and/or other materials provided with the distribution.
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| 32 | * 3. All advertising materials mentioning features or use of this software
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| 33 | * must display the following acknowledgement:
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| 34 | * This product includes software developed by the University of
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| 35 | * California, Berkeley and its contributors.
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| 36 | * 4. Neither the name of the University nor the names of its contributors
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| 37 | * may be used to endorse or promote products derived from this software
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| 38 | * without specific prior written permission.
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| 39 | *
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| 40 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 50 | * SUCH DAMAGE.
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| 51 | *
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| 52 | * @(#)tcpip.h 8.1 (Berkeley) 6/10/93
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| 53 | * tcpip.h,v 1.3 1994/08/21 05:27:40 paul Exp
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| 54 | */
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| 55 |
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| 56 | #ifndef _TCPIP_H_
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| 57 | #define _TCPIP_H_
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| 58 |
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| 59 | /*
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| 60 | * Tcp+ip header, after ip options removed.
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| 61 | */
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| 62 | struct tcpiphdr
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| 63 | {
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| 64 | struct ipovly ti_i; /* overlaid ip structure */
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| 65 | struct tcphdr ti_t; /* tcp header */
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| 66 | };
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| 67 | AssertCompileSize(struct tcpiphdr, 40);
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| 68 | #define ti_next ti_i.ih_next
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| 69 | #define ti_prev ti_i.ih_prev
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| 70 | #define ti_x1 ti_i.ih_x1
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| 71 | #define ti_pr ti_i.ih_pr
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| 72 | #define ti_len ti_i.ih_len
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| 73 | #define ti_src ti_i.ih_src
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| 74 | #define ti_dst ti_i.ih_dst
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| 75 | #define ti_sport ti_t.th_sport
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| 76 | #define ti_dport ti_t.th_dport
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| 77 | #define ti_seq ti_t.th_seq
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| 78 | #define ti_ack ti_t.th_ack
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| 79 | #define ti_x2 ti_t.th_x2
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| 80 | #define ti_off ti_t.th_off
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| 81 | #define ti_flags ti_t.th_flags
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| 82 | #define ti_win ti_t.th_win
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| 83 | #define ti_sum ti_t.th_sum
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| 84 | #define ti_urp ti_t.th_urp
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| 85 |
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| 86 | /*
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| 87 | * Just a clean way to get to the first byte
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| 88 | * of the packet
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| 89 | */
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| 90 | struct tcpiphdr_2
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| 91 | {
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| 92 | struct tcpiphdr dummy;
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| 93 | char first_char;
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| 94 | };
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| 95 |
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| 96 | #endif
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