| 1 | /* $Id: slirp.h 29656 2010-05-19 06:05:09Z vboxsync $ */
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| 2 | /** @file
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| 3 | * NAT - slirp (declarations/defines).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2010 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 | #ifndef __COMMON_H__
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| 19 | #define __COMMON_H__
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| 20 |
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| 21 | #include <VBox/stam.h>
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| 22 |
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| 23 | #ifdef RT_OS_WINDOWS
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| 24 | # include <winsock2.h>
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| 25 | # include <ws2tcpip.h>
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| 26 | typedef int socklen_t;
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| 27 | #endif
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| 28 | #ifdef RT_OS_OS2 /* temporary workaround, see ticket #127 */
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| 29 | # define mbstat mbstat_os2
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| 30 | # include <sys/socket.h>
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| 31 | # undef mbstat
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| 32 | typedef int socklen_t;
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| 33 | #endif
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| 34 |
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| 35 | #define CONFIG_QEMU
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| 36 |
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| 37 | #ifdef DEBUG
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| 38 | # undef DEBUG
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| 39 | # define DEBUG 1
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| 40 | #endif
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| 41 |
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| 42 | #ifndef CONFIG_QEMU
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| 43 | # include "version.h"
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| 44 | #endif
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| 45 | #define LOG_GROUP LOG_GROUP_DRV_NAT
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| 46 | #include <VBox/log.h>
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| 47 | #include <iprt/mem.h>
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| 48 | #ifdef RT_OS_WINDOWS
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| 49 | # include <windows.h>
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| 50 | # include <io.h>
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| 51 | #endif
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| 52 | #include <iprt/asm.h>
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| 53 | #include <iprt/assert.h>
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| 54 | #include <iprt/string.h>
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| 55 | #include <iprt/dir.h>
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| 56 | #include <iprt/rand.h>
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| 57 | #include <VBox/types.h>
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| 58 |
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| 59 | #undef malloc
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| 60 | #define malloc dont_use_malloc
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| 61 | #undef free
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| 62 | #define free dont_use_free
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| 63 | #undef realloc
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| 64 | #define realloc dont_use_realloc
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| 65 | #undef strdup
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| 66 | #define strdup dont_use_strdup
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| 67 |
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| 68 | #include "slirp_config.h"
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| 69 |
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| 70 | #ifdef RT_OS_WINDOWS
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| 71 |
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| 72 | # ifndef _MSC_VER
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| 73 | # include <inttypes.h>
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| 74 | # endif
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| 75 |
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| 76 |
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| 77 | # include <sys/timeb.h>
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| 78 | # include <iphlpapi.h>
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| 79 |
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| 80 | # define EWOULDBLOCK WSAEWOULDBLOCK
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| 81 | # define EINPROGRESS WSAEINPROGRESS
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| 82 | # define ENOTCONN WSAENOTCONN
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| 83 | # define EHOSTUNREACH WSAEHOSTUNREACH
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| 84 | # define ENETUNREACH WSAENETUNREACH
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| 85 | # define ECONNREFUSED WSAECONNREFUSED
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| 86 |
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| 87 | typedef uint8_t u_int8_t;
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| 88 | typedef uint16_t u_int16_t;
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| 89 | typedef uint32_t u_int32_t;
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| 90 |
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| 91 | #else /* !RT_OS_WINDOWS */
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| 92 |
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| 93 | # define ioctlsocket ioctl
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| 94 | # define closesocket(s) close(s)
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| 95 | # define O_BINARY 0
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| 96 |
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| 97 | #endif /* !RT_OS_WINDOWS */
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| 98 |
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| 99 | #if defined(RT_OS_WINDOWS) || defined (RT_OS_SOLARIS)
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| 100 | typedef uint64_t u_int64_t;
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| 101 | typedef char *caddr_t;
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| 102 | #endif
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| 103 |
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| 104 | #include <sys/types.h>
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| 105 | #ifdef HAVE_SYS_BITYPES_H
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| 106 | # include <sys/bitypes.h>
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| 107 | #endif
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| 108 |
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| 109 | #ifdef _MSC_VER
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| 110 | # include <time.h>
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| 111 | #else /* !_MSC_VER */
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| 112 | # include <sys/time.h>
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| 113 | #endif /* !_MSC_VER */
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| 114 |
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| 115 | #ifdef NEED_TYPEDEFS
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| 116 | typedef char int8_t;
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| 117 | typedef unsigned char u_int8_t;
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| 118 |
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| 119 | # if SIZEOF_SHORT == 2
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| 120 | typedef short int16_t;
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| 121 | typedef unsigned short u_int16_t;
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| 122 | # else
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| 123 | # if SIZEOF_INT == 2
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| 124 | typedef int int16_t;
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| 125 | typedef unsigned int u_int16_t;
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| 126 | # else
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| 127 | #error Cannot find a type with sizeof() == 2
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| 128 | # endif
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| 129 | # endif
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| 130 |
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| 131 | # if SIZEOF_SHORT == 4
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| 132 | typedef short int32_t;
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| 133 | typedef unsigned short u_int32_t;
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| 134 | # else
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| 135 | # if SIZEOF_INT == 4
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| 136 | typedef int int32_t;
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| 137 | typedef unsigned int u_int32_t;
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| 138 | # else
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| 139 | #error Cannot find a type with sizeof() == 4
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| 140 | # endif
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| 141 | # endif
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| 142 | #endif /* NEED_TYPEDEFS */
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| 143 |
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| 144 | #ifdef HAVE_UNISTD_H
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| 145 | # include <unistd.h>
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| 146 | #endif
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| 147 |
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| 148 | #ifdef HAVE_STDLIB_H
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| 149 | # include <stdlib.h>
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| 150 | #endif
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| 151 |
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| 152 | #include <errno.h>
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| 153 |
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| 154 |
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| 155 | #ifndef HAVE_MEMMOVE
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| 156 | # define memmove(x, y, z) bcopy(y, x, z)
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| 157 | #endif
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| 158 |
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| 159 | #if TIME_WITH_SYS_TIME
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| 160 | # include <sys/time.h>
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| 161 | # include <time.h>
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| 162 | #else
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| 163 | # if HAVE_SYS_TIME_H
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| 164 | # include <sys/time.h>
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| 165 | # else
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| 166 | # include <time.h>
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| 167 | # endif
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| 168 | #endif
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| 169 |
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| 170 | #ifdef HAVE_STRING_H
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| 171 | # include <string.h>
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| 172 | #else
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| 173 | # include <strings.h>
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| 174 | #endif
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| 175 |
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| 176 | #ifndef RT_OS_WINDOWS
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| 177 | # include <sys/uio.h>
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| 178 | #endif
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| 179 |
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| 180 | #ifndef RT_OS_WINDOWS
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| 181 | # include <netinet/in.h>
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| 182 | # include <arpa/inet.h>
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| 183 | #endif
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| 184 |
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| 185 | #ifdef GETTIMEOFDAY_ONE_ARG
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| 186 | # define gettimeofday(x, y) gettimeofday(x)
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| 187 | #endif
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| 188 |
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| 189 | #ifndef HAVE_INET_ATON
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| 190 | int inet_aton (const char *cp, struct in_addr *ia);
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| 191 | #endif
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| 192 |
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| 193 | #include <fcntl.h>
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| 194 | #ifndef NO_UNIX_SOCKETS
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| 195 | # include <sys/un.h>
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| 196 | #endif
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| 197 | #include <signal.h>
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| 198 | #ifdef HAVE_SYS_SIGNAL_H
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| 199 | # include <sys/signal.h>
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| 200 | #endif
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| 201 | #ifndef RT_OS_WINDOWS
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| 202 | # include <sys/socket.h>
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| 203 | #endif
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| 204 |
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| 205 | #if defined(HAVE_SYS_IOCTL_H)
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| 206 | # include <sys/ioctl.h>
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| 207 | #endif
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| 208 |
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| 209 | #ifdef HAVE_SYS_SELECT_H
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| 210 | # include <sys/select.h>
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| 211 | #endif
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| 212 |
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| 213 | #ifdef HAVE_SYS_WAIT_H
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| 214 | # include <sys/wait.h>
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| 215 | #endif
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| 216 |
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| 217 | #ifdef HAVE_SYS_FILIO_H
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| 218 | # include <sys/filio.h>
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| 219 | #endif
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| 220 |
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| 221 | #if defined(__STDC__) || defined(_MSC_VER)
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| 222 | # include <stdarg.h>
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| 223 | #else
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| 224 | # include <varargs.h>
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| 225 | #endif
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| 226 |
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| 227 | #include <sys/stat.h>
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| 228 |
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| 229 | /* Avoid conflicting with the libc insque() and remque(), which
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| 230 | * have different prototypes. */
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| 231 | #define insque slirp_insque
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| 232 | #define remque slirp_remque
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| 233 |
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| 234 | #ifdef HAVE_SYS_STROPTS_H
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| 235 | # include <sys/stropts.h>
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| 236 | #endif
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| 237 |
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| 238 | #include "libslirp.h"
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| 239 |
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| 240 | #include "debug.h"
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| 241 |
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| 242 | #include "ip.h"
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| 243 | #include "tcp.h"
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| 244 | #include "tcp_timer.h"
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| 245 | #include "tcp_var.h"
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| 246 | #include "tcpip.h"
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| 247 | #include "udp.h"
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| 248 | #include "icmp_var.h"
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| 249 | #include "mbuf.h"
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| 250 | #include "sbuf.h"
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| 251 | #include "socket.h"
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| 252 | #include "if.h"
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| 253 | #include "main.h"
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| 254 | #include "misc.h"
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| 255 | #include "ctl.h"
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| 256 | #include "bootp.h"
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| 257 | #include "tftp.h"
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| 258 |
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| 259 | #include "slirp_state.h"
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| 260 |
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| 261 | #undef PVM /* XXX Mac OS X hack */
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| 262 |
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| 263 | #ifndef NULL
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| 264 | # define NULL (void *)0
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| 265 | #endif
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| 266 |
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| 267 | void if_start (PNATState);
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| 268 |
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| 269 | #ifndef HAVE_INDEX
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| 270 | char *index (const char *, int);
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| 271 | #endif
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| 272 |
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| 273 | #ifndef HAVE_GETHOSTID
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| 274 | long gethostid (void);
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| 275 | #endif
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| 276 |
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| 277 | #ifndef RT_OS_WINDOWS
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| 278 | #include <netdb.h>
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| 279 | #endif
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| 280 |
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| 281 | #include "dnsproxy/dnsproxy.h"
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| 282 |
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| 283 | #define DEFAULT_BAUD 115200
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| 284 |
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| 285 | int get_dns_addr(PNATState pData, struct in_addr *pdns_addr);
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| 286 |
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| 287 | /* cksum.c */
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| 288 | #ifndef VBOX_WITH_SLIRP_BSD_MBUF
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| 289 | int cksum(struct mbuf *m, int len);
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| 290 | #else
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| 291 | typedef uint16_t u_short;
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| 292 | typedef unsigned int u_int;
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| 293 | #include "in_cksum.h"
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| 294 | #endif
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| 295 |
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| 296 | /* if.c */
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| 297 | void if_init (PNATState);
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| 298 | void if_output (PNATState, struct socket *, struct mbuf *);
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| 299 |
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| 300 | /* ip_input.c */
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| 301 | void ip_init (PNATState);
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| 302 | void ip_input (PNATState, struct mbuf *);
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| 303 | struct mbuf * ip_reass (PNATState, register struct mbuf *);
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| 304 | void ip_freef (PNATState, struct ipqhead *, struct ipq_t *);
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| 305 | void ip_slowtimo (PNATState);
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| 306 | void ip_stripoptions (register struct mbuf *, struct mbuf *);
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| 307 |
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| 308 | /* ip_output.c */
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| 309 | int ip_output (PNATState, struct socket *, struct mbuf *);
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| 310 | int ip_output0 (PNATState, struct socket *, struct mbuf *, int urg);
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| 311 |
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| 312 | /* tcp_input.c */
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| 313 | int tcp_reass (PNATState, struct tcpcb *, struct tcphdr *, int *, struct mbuf *);
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| 314 | void tcp_input (PNATState, register struct mbuf *, int, struct socket *);
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| 315 | void tcp_dooptions (PNATState, struct tcpcb *, u_char *, int, struct tcpiphdr *);
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| 316 | void tcp_xmit_timer (PNATState, register struct tcpcb *, int);
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| 317 | int tcp_mss (PNATState, register struct tcpcb *, u_int);
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| 318 |
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| 319 | /* tcp_output.c */
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| 320 | int tcp_output (PNATState, register struct tcpcb *);
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| 321 | void tcp_setpersist (register struct tcpcb *);
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| 322 |
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| 323 | /* tcp_subr.c */
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| 324 | void tcp_init (PNATState);
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| 325 | void tcp_template (struct tcpcb *);
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| 326 | void tcp_respond (PNATState, struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int);
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| 327 | struct tcpcb * tcp_newtcpcb (PNATState, struct socket *);
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| 328 | struct tcpcb * tcp_close (PNATState, register struct tcpcb *);
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| 329 | void tcp_drain (void);
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| 330 | void tcp_sockclosed (PNATState, struct tcpcb *);
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| 331 | int tcp_fconnect (PNATState, struct socket *);
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| 332 | void tcp_connect (PNATState, struct socket *);
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| 333 | int tcp_attach (PNATState, struct socket *);
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| 334 | u_int8_t tcp_tos (struct socket *);
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| 335 | int tcp_ctl (PNATState, struct socket *);
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| 336 | struct tcpcb *tcp_drop(PNATState, struct tcpcb *tp, int err);
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| 337 |
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| 338 | /*slirp.c*/
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| 339 | void slirp_arp_who_has(PNATState pData, uint32_t dst);
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| 340 | int slirp_arp_cache_update(PNATState pData, uint32_t dst, const uint8_t *mac);
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| 341 | void slirp_arp_cache_add(PNATState pData, uint32_t ip, const uint8_t *ether);
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| 342 | int slirp_arp_cache_update_or_add(PNATState pData, uint32_t dst, const uint8_t *mac);
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| 343 | int slirp_init_dns_list(PNATState pData);
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| 344 | void slirp_release_dns_list(PNATState pData);
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| 345 | #define MIN_MRU 128
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| 346 | #define MAX_MRU 16384
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| 347 |
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| 348 | #ifndef RT_OS_WINDOWS
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| 349 | # define min(x, y) ((x) < (y) ? (x) : (y))
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| 350 | # define max(x, y) ((x) > (y) ? (x) : (y))
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| 351 | #endif
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| 352 |
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| 353 | #ifdef RT_OS_WINDOWS
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| 354 | # undef errno
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| 355 | # if 0 /* debugging */
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| 356 | int errno_func(const char *file, int line);
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| 357 | # define errno (errno_func(__FILE__, __LINE__))
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| 358 | # else
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| 359 | # define errno (WSAGetLastError())
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| 360 | # endif
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| 361 | #endif
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| 362 |
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| 363 | # define ETH_ALEN 6
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| 364 | # define ETH_HLEN 14
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| 365 |
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| 366 | # define ARPOP_REQUEST 1 /* ARP request */
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| 367 | # define ARPOP_REPLY 2 /* ARP reply */
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| 368 |
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| 369 | struct ethhdr
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| 370 | {
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| 371 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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| 372 | unsigned char h_source[ETH_ALEN]; /* source ether addr */
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| 373 | unsigned short h_proto; /* packet type ID field */
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| 374 | };
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| 375 | AssertCompileSize(struct ethhdr, 14);
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| 376 |
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| 377 | /*
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| 378 | * (vvl) externing of sscanf.
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| 379 | */
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| 380 | int sscanf(const char *s, const char *format, ...);
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| 381 |
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| 382 | #if defined(VBOX_SLIRP_ALIAS) || defined(VBOX_SLIRP_BSD)
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| 383 |
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| 384 | # define ip_next(ip) (void *)((uint8_t *)(ip) + ((ip)->ip_hl << 2))
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| 385 | # define udp_next(udp) (void *)((uint8_t *)&((struct udphdr *)(udp))[1] )
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| 386 | # define bcopy(src, dst, len) memcpy((dst), (src), (len))
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| 387 | # define bcmp(a1, a2, len) memcmp((a1), (a2), (len))
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| 388 | # define NO_FW_PUNCH
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| 389 |
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| 390 | # ifdef alias_addr
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| 391 | # ifndef VBOX_SLIRP_BSD
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| 392 | # error alias_addr has already defined!!!
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| 393 | # else
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| 394 | # undef alias_addr
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| 395 | # endif
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| 396 | # endif
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| 397 |
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| 398 | # define arc4random() RTRandU32()
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| 399 | # undef malloc
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| 400 | # undef calloc
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| 401 | # undef free
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| 402 | # define malloc(x) RTMemAlloc((x))
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| 403 | # define calloc(x, n) RTMemAllocZ((x)*(n))
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| 404 | # define free(x) RTMemFree((x))
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| 405 | # ifndef __unused
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| 406 | # define __unused
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| 407 | # endif
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| 408 |
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| 409 | # define strncasecmp RTStrNICmp
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| 410 | # define stderr NULL
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| 411 | # define stdout NULL
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| 412 |
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| 413 | # ifdef VBOX_WITH_DEBUG_LIBALIAS
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| 414 | # define LIBALIAS_DEBUG
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| 415 | # endif
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| 416 |
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| 417 | # define fflush(x) do{} while(0)
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| 418 | # include "ext.h"
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| 419 | #endif /*VBOX_SLIRP_ALIAS*/
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| 420 |
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| 421 | #ifdef VBOX_WITH_SLIRP_BSD_MBUF
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| 422 | /**
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| 423 | * @todo might be useful to make it configurable, especially in terms of Intnet behind NAT
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| 424 | */
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| 425 | # define maxusers 32
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| 426 | # define max_protohdr 0
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| 427 | /**
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| 428 | * @todo (vvl) for now ignore these values, later perhaps initialize tuning parameters
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| 429 | */
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| 430 | # define TUNABLE_INT_FETCH(name, pval) do { } while (0)
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| 431 | # define SYSCTL_PROC(a0, a1, a2, a3, a4, a5, a6, a7, a8) const int dummy_ ## a6 = 0
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| 432 | # define SYSCTL_STRUCT(a0, a1, a2, a3, a4, a5, a6) const int dummy_ ## a5 = 0
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| 433 | # define SYSINIT(a0, a1, a2, a3, a4) const int dummy_ ## a3 = 0
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| 434 | # define sysctl_handle_int(a0, a1, a2, a3) 0
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| 435 | # define EVENTHANDLER_INVOKE(a) do{}while(0)
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| 436 | # define EVENTHANDLER_REGISTER(a0, a1, a2, a3) do{}while(0)
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| 437 | # define KASSERT AssertMsg
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| 438 |
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| 439 | struct dummy_req
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| 440 | {
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| 441 | void *newptr;
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| 442 | };
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| 443 |
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| 444 | #define SYSCTL_HANDLER_ARGS PNATState pData, void *oidp, struct dummy_req *req
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| 445 |
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| 446 | void mbuf_init(void *);
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| 447 | # define cksum(m, len) in_cksum_skip((m), (len), 0)
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| 448 | #endif
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| 449 |
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| 450 | int ftp_alias_load(PNATState);
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| 451 | int ftp_alias_unload(PNATState);
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| 452 | int nbt_alias_load(PNATState);
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| 453 | int nbt_alias_unload(PNATState);
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| 454 | int dns_alias_load(PNATState);
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| 455 | int dns_alias_unload(PNATState);
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| 456 | int slirp_arp_lookup_ip_by_ether(PNATState, const uint8_t *, uint32_t *);
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| 457 | int slirp_arp_lookup_ether_by_ip(PNATState, uint32_t, uint8_t *);
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| 458 | #endif
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| 459 |
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