1 | /* $Id: slirp.h 29506 2010-05-17 07:14:47Z 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 | #define MIN_MRU 128
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344 | #define MAX_MRU 16384
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345 |
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346 | #ifndef RT_OS_WINDOWS
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347 | # define min(x, y) ((x) < (y) ? (x) : (y))
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348 | # define max(x, y) ((x) > (y) ? (x) : (y))
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349 | #endif
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350 |
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351 | #ifdef RT_OS_WINDOWS
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352 | # undef errno
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353 | # if 0 /* debugging */
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354 | int errno_func(const char *file, int line);
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355 | # define errno (errno_func(__FILE__, __LINE__))
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356 | # else
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357 | # define errno (WSAGetLastError())
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358 | # endif
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359 | #endif
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360 |
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361 | # define ETH_ALEN 6
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362 | # define ETH_HLEN 14
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363 |
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364 | # define ARPOP_REQUEST 1 /* ARP request */
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365 | # define ARPOP_REPLY 2 /* ARP reply */
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366 |
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367 | struct ethhdr
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368 | {
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369 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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370 | unsigned char h_source[ETH_ALEN]; /* source ether addr */
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371 | unsigned short h_proto; /* packet type ID field */
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372 | };
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373 | AssertCompileSize(struct ethhdr, 14);
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374 |
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375 | /*
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376 | * (vvl) externing of sscanf.
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377 | */
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378 | int sscanf(const char *s, const char *format, ...);
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379 |
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380 | #if defined(VBOX_SLIRP_ALIAS) || defined(VBOX_SLIRP_BSD)
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381 |
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382 | # define ip_next(ip) (void *)((uint8_t *)(ip) + ((ip)->ip_hl << 2))
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383 | # define udp_next(udp) (void *)((uint8_t *)&((struct udphdr *)(udp))[1] )
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384 | # define bcopy(src, dst, len) memcpy((dst), (src), (len))
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385 | # define bcmp(a1, a2, len) memcmp((a1), (a2), (len))
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386 | # define NO_FW_PUNCH
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387 |
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388 | # ifdef alias_addr
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389 | # ifndef VBOX_SLIRP_BSD
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390 | # error alias_addr has already defined!!!
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391 | # else
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392 | # undef alias_addr
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393 | # endif
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394 | # endif
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395 |
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396 | # define arc4random() RTRandU32()
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397 | # undef malloc
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398 | # undef calloc
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399 | # undef free
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400 | # define malloc(x) RTMemAlloc((x))
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401 | # define calloc(x, n) RTMemAllocZ((x)*(n))
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402 | # define free(x) RTMemFree((x))
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403 | # ifndef __unused
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404 | # define __unused
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405 | # endif
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406 |
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407 | # define strncasecmp RTStrNICmp
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408 | # define stderr NULL
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409 | # define stdout NULL
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410 |
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411 | # ifdef VBOX_WITH_DEBUG_LIBALIAS
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412 | # define LIBALIAS_DEBUG
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413 | # endif
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414 |
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415 | # define fflush(x) do{} while(0)
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416 | # include "ext.h"
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417 | #endif /*VBOX_SLIRP_ALIAS*/
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418 |
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419 | #ifdef VBOX_WITH_SLIRP_BSD_MBUF
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420 | /**
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421 | * @todo might be useful to make it configurable, especially in terms of Intnet behind NAT
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422 | */
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423 | # define maxusers 32
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424 | # define max_protohdr 0
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425 | /**
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426 | * @todo (vvl) for now ignore these values, later perhaps initialize tuning parameters
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427 | */
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428 | # define TUNABLE_INT_FETCH(name, pval) do { } while (0)
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429 | # define SYSCTL_PROC(a0, a1, a2, a3, a4, a5, a6, a7, a8) const int dummy_ ## a6 = 0
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430 | # define SYSCTL_STRUCT(a0, a1, a2, a3, a4, a5, a6) const int dummy_ ## a5 = 0
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431 | # define SYSINIT(a0, a1, a2, a3, a4) const int dummy_ ## a3 = 0
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432 | # define sysctl_handle_int(a0, a1, a2, a3) 0
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433 | # define EVENTHANDLER_INVOKE(a) do{}while(0)
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434 | # define EVENTHANDLER_REGISTER(a0, a1, a2, a3) do{}while(0)
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435 | # define KASSERT AssertMsg
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436 |
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437 | struct dummy_req
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438 | {
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439 | void *newptr;
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440 | };
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441 |
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442 | #define SYSCTL_HANDLER_ARGS PNATState pData, void *oidp, struct dummy_req *req
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443 |
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444 | void mbuf_init(void *);
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445 | # define cksum(m, len) in_cksum_skip((m), (len), 0)
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446 | #endif
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447 |
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448 | int ftp_alias_load(PNATState);
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449 | int ftp_alias_unload(PNATState);
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450 | int nbt_alias_load(PNATState);
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451 | int nbt_alias_unload(PNATState);
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452 | int dns_alias_load(PNATState);
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453 | int dns_alias_unload(PNATState);
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454 | int slirp_arp_lookup_ip_by_ether(PNATState, const uint8_t *, uint32_t *);
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455 | int slirp_arp_lookup_ether_by_ip(PNATState, uint32_t, uint8_t *);
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456 | #endif
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457 |
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