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annotate deps/Platinum/ThirdParty/Neptune/Source/System/Win32/NptWin32Network.cpp @ 0:3425707ddbf6

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author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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1 /*****************************************************************
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2 |
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3 | Neptune - Network :: Winsock Implementation
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4 |
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5 | (c) 2001-2006 Gilles Boccon-Gibod
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6 | Author: Gilles Boccon-Gibod (bok@bok.net)
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7 |
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8 ****************************************************************/
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9
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10 /*----------------------------------------------------------------------
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11 | includes
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12 +---------------------------------------------------------------------*/
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13 #define STRICT
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14 #include <winsock2.h>
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15 #include <ws2tcpip.h>
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16 #include "NptNetwork.h"
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17 #include "NptWin32Network.h"
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18
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19 /*----------------------------------------------------------------------
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20 | static initializer
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21 +---------------------------------------------------------------------*/
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22 NPT_WinsockSystem::NPT_WinsockSystem() {
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23 WORD wVersionRequested;
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24 WSADATA wsaData;
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25 wVersionRequested = MAKEWORD(2, 2);
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26 /*wVersionRequested = MAKEWORD(1, 1);*/
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27 WSAStartup( wVersionRequested, &wsaData );
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28 }
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29 NPT_WinsockSystem::~NPT_WinsockSystem() {
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30 WSACleanup();
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31 }
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32 NPT_WinsockSystem NPT_WinsockSystem::Initializer;
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33
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34 #if defined(_WIN32_WCE)
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35 // don't use the SIO_GET_INTERFACE_LIST on Windows CE, it is
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36 // hopelessly broken, and will crash your application.
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37 #define NPT_NETWORK_USE_IP_HELPER_API
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38 #else
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39 #define NPT_NETWORK_USE_SIO_GET_INTERFACE_LIST
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40 #endif
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41
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42 #if defined(NPT_NETWORK_USE_SIO_GET_INTERFACE_LIST)
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43 /*----------------------------------------------------------------------
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44 | NPT_NetworkInterface::GetNetworkInterfaces
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45 +---------------------------------------------------------------------*/
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46 NPT_Result
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47 NPT_NetworkInterface::GetNetworkInterfaces(NPT_List<NPT_NetworkInterface*>& interfaces)
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48 {
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49 // create a socket to talk to the TCP/IP stack
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50 SOCKET net;
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51 if((net = WSASocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, 0, 0)) == INVALID_SOCKET) {
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52 return NPT_FAILURE;
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53 }
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54
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55 // get a list of interfaces
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56 INTERFACE_INFO query[32]; // get up to 32 interfaces
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57 DWORD bytes_returned;
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58 int io_result = WSAIoctl(net,
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59 SIO_GET_INTERFACE_LIST,
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60 NULL, 0,
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61 &query, sizeof(query),
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62 &bytes_returned,
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63 NULL, NULL);
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64 if (io_result == SOCKET_ERROR) {
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65 closesocket(net);
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66 return NPT_FAILURE;
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67 }
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68
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69 // we don't need the socket anymore
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70 closesocket(net);
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71
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72 // Display interface information
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73 int interface_count = (bytes_returned/sizeof(INTERFACE_INFO));
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74 unsigned int iface_index = 0;
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75 for (int i=0; i<interface_count; i++) {
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76 SOCKADDR_IN* address;
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77 NPT_Flags flags = 0;
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78
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79 // primary address
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80 address = (SOCKADDR_IN*)&query[i].iiAddress;
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81 NPT_IpAddress primary_address(ntohl(address->sin_addr.s_addr));
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82
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83 // netmask
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84 address = (SOCKADDR_IN*)&query[i].iiNetmask;
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85 NPT_IpAddress netmask(ntohl(address->sin_addr.s_addr));
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86
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87 // broadcast address
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88 address = (SOCKADDR_IN*)&query[i].iiBroadcastAddress;
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89 NPT_IpAddress broadcast_address(ntohl(address->sin_addr.s_addr));
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90
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91 {
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92 // broadcast address is incorrect
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93 unsigned char addr[4];
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94 for(int i=0; i<4; i++) {
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95 addr[i] = (primary_address.AsBytes()[i] & netmask.AsBytes()[i]) |
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96 ~netmask.AsBytes()[i];
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97 }
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98 broadcast_address.Set(addr);
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99 }
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100
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101 // ignore interfaces that are not up
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102 if (!(query[i].iiFlags & IFF_UP)) {
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103 continue;
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104 }
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105 if (query[i].iiFlags & IFF_BROADCAST) {
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106 flags |= NPT_NETWORK_INTERFACE_FLAG_BROADCAST;
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107 }
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108 if (query[i].iiFlags & IFF_MULTICAST) {
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109 flags |= NPT_NETWORK_INTERFACE_FLAG_MULTICAST;
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110 }
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111 if (query[i].iiFlags & IFF_LOOPBACK) {
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112 flags |= NPT_NETWORK_INTERFACE_FLAG_LOOPBACK;
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113 }
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114 if (query[i].iiFlags & IFF_POINTTOPOINT) {
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115 flags |= NPT_NETWORK_INTERFACE_FLAG_POINT_TO_POINT;
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116 }
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117
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118 // mac address (no support for this for now)
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119 NPT_MacAddress mac;
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120
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121 // create an interface object
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122 char iface_name[5];
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123 iface_name[0] = 'i';
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124 iface_name[1] = 'f';
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125 iface_name[2] = '0'+(iface_index/10);
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126 iface_name[3] = '0'+(iface_index%10);
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127 iface_name[4] = '\0';
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128 NPT_NetworkInterface* iface = new NPT_NetworkInterface(iface_name, mac, flags);
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129
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130 // set the interface address
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131 NPT_NetworkInterfaceAddress iface_address(
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132 primary_address,
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133 broadcast_address,
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134 NPT_IpAddress::Any,
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135 netmask);
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136 iface->AddAddress(iface_address);
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137
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138 // add the interface to the list
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139 interfaces.Add(iface);
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140
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141 // increment the index (used for generating the name
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142 iface_index++;
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143 }
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144
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145 return NPT_SUCCESS;
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146 }
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147 #elif defined(NPT_NETWORK_USE_IP_HELPER_API)
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148 // Use the IP Helper API
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149 #include <iphlpapi.h>
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150
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151 /*----------------------------------------------------------------------
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152 | NPT_NetworkInterface::GetNetworkInterfaces
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153 +---------------------------------------------------------------------*/
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154 NPT_Result
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155 NPT_NetworkInterface::GetNetworkInterfaces(NPT_List<NPT_NetworkInterface*>& interfaces)
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156 {
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157 IP_ADAPTER_ADDRESSES* iface_list = NULL;
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158 ULONG size = sizeof(IP_ADAPTER_INFO);
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159
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160 // get the interface table
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161 for(;;) {
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162 iface_list = (IP_ADAPTER_ADDRESSES*)malloc(size);
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163 DWORD result = GetAdaptersAddresses(AF_INET,
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164 0,
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165 NULL,
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166 iface_list, &size);
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167 if (result == NO_ERROR) {
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168 break;
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169 } else {
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170 if (result == ERROR_BUFFER_OVERFLOW) {
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171 // free and try again
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172 free(iface_list);
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173 } else {
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174 return NPT_FAILURE;
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175 }
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176 }
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177 }
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178
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179 // iterate over the interfaces
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180 for (IP_ADAPTER_ADDRESSES* iface = iface_list; iface; iface = iface->Next) {
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181 // skip this interface if it is not up
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182 if (iface->OperStatus != IfOperStatusUp) continue;
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183
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184 // get the interface type and mac address
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185 NPT_MacAddress::Type mac_type;
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186 switch (iface->IfType) {
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187 case IF_TYPE_ETHERNET_CSMACD: mac_type = NPT_MacAddress::TYPE_ETHERNET; break;
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188 case IF_TYPE_SOFTWARE_LOOPBACK: mac_type = NPT_MacAddress::TYPE_LOOPBACK; break;
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189 case IF_TYPE_PPP: mac_type = NPT_MacAddress::TYPE_PPP; break;
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190 default: mac_type = NPT_MacAddress::TYPE_UNKNOWN; break;
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191 }
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192 NPT_MacAddress mac(mac_type, iface->PhysicalAddress, iface->PhysicalAddressLength);
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193
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194 // compute interface flags
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195 NPT_Flags flags = 0;
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196 if (!(iface->Flags & IP_ADAPTER_NO_MULTICAST)) flags |= NPT_NETWORK_INTERFACE_FLAG_MULTICAST;
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197 if (iface->IfType == IF_TYPE_SOFTWARE_LOOPBACK) flags |= NPT_NETWORK_INTERFACE_FLAG_LOOPBACK;
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198 if (iface->IfType == IF_TYPE_PPP) flags |= NPT_NETWORK_INTERFACE_FLAG_POINT_TO_POINT;
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199
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200 // compute the unicast address (only the first one is supported for now)
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201 NPT_IpAddress primary_address;
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202 if (iface->FirstUnicastAddress) {
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203 if (iface->FirstUnicastAddress->Address.lpSockaddr == NULL) continue;
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204 if (iface->FirstUnicastAddress->Address.iSockaddrLength != sizeof(SOCKADDR_IN)) continue;
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205 SOCKADDR_IN* address = (SOCKADDR_IN*)iface->FirstUnicastAddress->Address.lpSockaddr;
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206 if (address->sin_family != AF_INET) continue;
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207 primary_address.Set(ntohl(address->sin_addr.s_addr));
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208 }
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209 NPT_IpAddress broadcast_address; // not supported yet
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210 NPT_IpAddress netmask; // not supported yet
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211
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212 // convert the interface name to UTF-8
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213 unsigned int iface_name_length = (unsigned int)wcslen(iface->FriendlyName);
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214 char* iface_name = new char[4*iface_name_length+1];
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215 int result = WideCharToMultiByte(
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216 CP_UTF8, 0, iface->FriendlyName, iface_name_length,
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217 iface_name, 4*iface_name_length+1,
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218 NULL, NULL);
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219 if (result > 0) {
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220 iface_name[result] = '\0';
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221 } else {
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222 iface_name[0] = '\0';
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223 }
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224
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225 // create an interface descriptor
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226 NPT_NetworkInterface* iface_object = new NPT_NetworkInterface(iface_name, mac, flags);
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227 NPT_NetworkInterfaceAddress iface_address(
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228 primary_address,
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229 broadcast_address,
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230 NPT_IpAddress::Any,
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231 netmask);
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232 iface_object->AddAddress(iface_address);
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233
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234 // cleanup
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235 delete[] iface_name;
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236
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237 // add the interface to the list
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238 interfaces.Add(iface_object);
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239 }
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240
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241 return NPT_SUCCESS;
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242 }
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243 #else
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244 /*----------------------------------------------------------------------
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245 | NPT_NetworkInterface::GetNetworkInterfaces
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246 +---------------------------------------------------------------------*/
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247 NPT_Result
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248 NPT_NetworkInterface::GetNetworkInterfaces(NPT_List<NPT_NetworkInterface*>&)
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249 {
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250 return NPT_SUCCESS;
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251 }
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252 #endif