1 | /* $Id: winutils.h 64759 2016-11-28 09:04:38Z vboxsync $ */
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2 | /** @file
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3 | * NAT Network - winsock compatibility shim.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2013-2016 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 __WINUTILS_H_
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19 | # define __WINUTILS_H_
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20 |
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21 | # include <iprt/cdefs.h>
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22 |
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23 | # ifdef RT_OS_WINDOWS
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24 | # include <iprt/win/winsock2.h>
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25 | # include <iprt/win/ws2tcpip.h>
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26 | # include <mswsock.h>
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27 | # include <iprt/win/windows.h>
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28 | # include <iprt/err.h>
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29 | # include <iprt/net.h>
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30 | # include <iprt/log.h>
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31 | /**
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32 | * Inclusion of lwip/def.h was added here to avoid conflict of definitions
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33 | * of hton-family functions in LWIP and windock's headers.
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34 | */
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35 | # include <lwip/def.h>
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36 |
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37 | # ifndef PF_LOCAL
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38 | # define PF_LOCAL AF_INET
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39 | # endif
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40 |
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41 | # ifdef DEBUG
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42 | # define err(code,...) do { \
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43 | AssertMsgFailed((__VA_ARGS__)); \
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44 | }while(0)
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45 | #else
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46 | # define err(code,...) do { \
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47 | DPRINTF0((__VA_ARGS__)); \
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48 | ExitProcess(code); \
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49 | }while(0)
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50 | #endif
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51 | # define errx err
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52 | # define __func__ __FUNCTION__
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53 | # define __attribute__(x) /* IGNORE */
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54 |
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55 | # define SOCKERRNO() (WSAGetLastError())
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56 | # define SET_SOCKERRNO(error) do { WSASetLastError(error); } while (0)
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57 |
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58 | /**
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59 | * "Windows Sockets Error Codes" obtained with WSAGetLastError().
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60 | * http://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx
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61 | *
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62 | * This block of error codes from <winsock2.h> conflicts with "POSIX
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63 | * supplement" error codes from <errno.h>, but we don't expect to ever
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64 | * encounter the latter in the proxy code, so redefine them to their
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65 | * unixy names.
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66 | */
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67 | # undef EWOULDBLOCK
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68 | # define EWOULDBLOCK WSAEWOULDBLOCK
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69 | # undef EINPROGRESS
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70 | # define EINPROGRESS WSAEINPROGRESS
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71 | # undef EALREADY
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72 | # define EALREADY WSAEALREADY
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73 | # undef ENOTSOCK
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74 | # define ENOTSOCK WSAENOTSOCK
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75 | # undef EDESTADDRREQ
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76 | # define EDESTADDRREQ WSAEDESTADDRREQ
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77 | # undef EMSGSIZE
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78 | # define EMSGSIZE WSAEMSGSIZE
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79 | # undef EPROTOTYPE
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80 | # define EPROTOTYPE WSAEPROTOTYPE
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81 | # undef ENOPROTOOPT
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82 | # define ENOPROTOOPT WSAENOPROTOOPT
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83 | # undef EPROTONOSUPPORT
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84 | # define EPROTONOSUPPORT WSAEPROTONOSUPPORT
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85 | # undef ESOCKTNOSUPPORT
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86 | # define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
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87 | # undef EOPNOTSUPP
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88 | # define EOPNOTSUPP WSAEOPNOTSUPP
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89 | # undef EPFNOSUPPORT
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90 | # define EPFNOSUPPORT WSAEPFNOSUPPORT
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91 | # undef EAFNOSUPPORT
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92 | # define EAFNOSUPPORT WSAEAFNOSUPPORT
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93 | # undef EADDRINUSE
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94 | # define EADDRINUSE WSAEADDRINUSE
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95 | # undef EADDRNOTAVAIL
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96 | # define EADDRNOTAVAIL WSAEADDRNOTAVAIL
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97 | # undef ENETDOWN
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98 | # define ENETDOWN WSAENETDOWN
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99 | # undef ENETUNREACH
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100 | # define ENETUNREACH WSAENETUNREACH
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101 | # undef ENETRESET
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102 | # define ENETRESET WSAENETRESET
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103 | # undef ECONNABORTED
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104 | # define ECONNABORTED WSAECONNABORTED
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105 | # undef ECONNRESET
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106 | # define ECONNRESET WSAECONNRESET
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107 | # undef ENOBUFS
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108 | # define ENOBUFS WSAENOBUFS
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109 | # undef EISCONN
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110 | # define EISCONN WSAEISCONN
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111 | # undef ENOTCONN
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112 | # define ENOTCONN WSAENOTCONN
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113 | # undef ESHUTDOWN
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114 | # define ESHUTDOWN WSAESHUTDOWN
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115 | # undef ETOOMANYREFS
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116 | # define ETOOMANYREFS WSAETOOMANYREFS
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117 | # undef ETIMEDOUT
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118 | # define ETIMEDOUT WSAETIMEDOUT
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119 | # undef ECONNREFUSED
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120 | # define ECONNREFUSED WSAECONNREFUSED
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121 | # undef ELOOP
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122 | # define ELOOP WSAELOOP
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123 | # undef ENAMETOOLONG
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124 | # define ENAMETOOLONG WSAENAMETOOLONG
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125 | # undef EHOSTDOWN
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126 | # define EHOSTDOWN WSAEHOSTDOWN
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127 | # undef EHOSTUNREACH
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128 | # define EHOSTUNREACH WSAEHOSTUNREACH
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129 |
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130 | /**
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131 | * parameters to shutdown (2) with Winsock2
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132 | * http://msdn.microsoft.com/en-us/library/windows/desktop/ms740481(v=vs.85).aspx
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133 | */
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134 | # define SHUT_RD SD_RECEIVE
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135 | # define SHUT_WR SD_SEND
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136 | # define SHUT_RDWR SD_BOTH
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137 |
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138 | typedef ULONG nfds_t;
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139 |
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140 | typedef WSABUF IOVEC;
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141 |
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142 | # define IOVEC_GET_BASE(iov) ((iov).buf)
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143 | # define IOVEC_SET_BASE(iov, b) ((iov).buf = (b))
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144 |
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145 | # define IOVEC_GET_LEN(iov) ((iov).len)
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146 | # define IOVEC_SET_LEN(iov, l) ((iov).len = (ULONG)(l))
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147 |
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148 | #if _WIN32_WINNT < 0x0600
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149 | /* otherwise defined the other way around in ws2def.h */
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150 | #define cmsghdr _WSACMSGHDR
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151 |
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152 | #undef CMSG_DATA /* wincrypt.h can byte my shiny metal #undef */
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153 | #define CMSG_DATA WSA_CMSG_DATA
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154 | #define CMSG_LEN WSA_CMSG_LEN
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155 | #define CMSG_SPACE WSA_CMSG_SPACE
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156 |
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157 | #define CMSG_FIRSTHDR WSA_CMSG_FIRSTHDR
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158 | #define CMSG_NXTHDR WSA_CMSG_NXTHDR
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159 | #endif /* _WIN32_WINNT < 0x0600 - provide unglified CMSG names */
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160 |
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161 | RT_C_DECLS_BEGIN
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162 | int RTWinSocketPair(int domain, int type, int protocol, SOCKET socket_vector[2]);
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163 | RT_C_DECLS_END
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164 |
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165 | # else /* !RT_OS_WINDOWS */
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166 |
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167 | # include <errno.h>
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168 | # include <unistd.h>
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169 |
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170 | # define SOCKET int
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171 | # define INVALID_SOCKET (-1)
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172 | # define SOCKET_ERROR (-1)
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173 |
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174 | # define SOCKERRNO() (errno)
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175 | # define SET_SOCKERRNO(error) do { errno = (error); } while (0)
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176 |
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177 | # define closesocket(s) close(s)
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178 | # define ioctlsocket(s, req, arg) ioctl((s), (req), (arg))
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179 |
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180 | typedef struct iovec IOVEC;
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181 |
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182 | # define IOVEC_GET_BASE(iov) ((iov).iov_base)
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183 | # define IOVEC_SET_BASE(iov, b) ((iov).iov_base = (b))
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184 |
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185 | # define IOVEC_GET_LEN(iov) ((iov).iov_len)
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186 | # define IOVEC_SET_LEN(iov, l) ((iov).iov_len = (l))
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187 | # endif
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188 |
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189 | DECLINLINE(int)
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190 | proxy_error_is_transient(int error)
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191 | {
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192 | # if !defined(RT_OS_WINDOWS)
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193 | return error == EWOULDBLOCK
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194 | # if EAGAIN != EWOULDBLOCK
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195 | || error == EAGAIN
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196 | # endif
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197 | || error == EINTR
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198 | || error == ENOBUFS
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199 | || error == ENOMEM;
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200 | # else
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201 | return error == WSAEWOULDBLOCK
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202 | || error == WSAEINTR /* NB: we don't redefine EINTR above */
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203 | || error == WSAENOBUFS;
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204 | # endif
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205 | }
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206 |
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207 | #endif
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