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1 /** @file |
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2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: IP Address utils |
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15 * |
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16 */ |
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17 |
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18 |
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19 // INCLUDES |
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20 #include <e32base.h> |
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21 #include <commdb.h> |
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22 #include <in_sock.h> |
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23 #include "upnpipaddressutils.h" |
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24 #define KLogFile _L("DLNAWebServer.txt") |
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25 #include "upnpcustomlog.h" |
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26 |
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27 // ================= MEMBER FUNCTIONS ======================= |
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28 namespace UpnpIpAddressUtil |
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29 { |
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30 // ----------------------------------------------------------------------------- |
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31 // UpnpIpAddressUtil::GetIfNameForIap |
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32 // Reads the IF name for the specified IAP ID. |
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33 // ----------------------------------------------------------------------------- |
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34 // |
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35 EXPORT_C void GetIfNameForIap( TUint32 aIapId, TDes& aIfName ) |
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36 { |
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37 CCommsDatabase* theDb; |
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38 TUint32 iapId; |
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39 TBool nameNotFound = ETrue; |
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40 |
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41 // First zero the name. If IF Name is not found, it will be zero lenght. |
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42 aIfName.Zero(); |
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43 |
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44 // Open CommDB |
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45 theDb = CCommsDatabase::NewL( EDatabaseTypeIAP ); |
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46 CleanupStack::PushL( theDb ); |
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47 |
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48 theDb->ShowHiddenRecords(); |
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49 |
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50 // Open IAP table and find the IAP ID given as method parameter. |
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51 CCommsDbTableView* view = theDb->OpenTableLC( TPtrC( IAP ) ); |
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52 TInt res = view->GotoFirstRecord(); |
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53 while ( res == KErrNone && nameNotFound ) |
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54 { |
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55 // Read IAP ID and match it to the one given as parameter |
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56 view->ReadUintL( TPtrC( COMMDB_ID ), iapId ); |
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57 if ( iapId == aIapId ) |
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58 { |
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59 // Right IAP found, read bearer ID and type |
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60 TUint32 iapBearerId; |
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61 view->ReadUintL( TPtrC( IAP_BEARER ),iapBearerId ); |
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62 view->ReadTextL( TPtrC( IAP_BEARER_TYPE ),aIfName ); |
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63 |
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64 // Find the correct bearer table specified by bearer type |
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65 CCommsDbTableView* ifView = theDb->OpenTableLC( |
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66 TPtrC( aIfName ) ); |
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67 TInt bearerRes = ifView->GotoFirstRecord(); |
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68 TUint32 bearerId; |
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69 while ( bearerRes == KErrNone && nameNotFound ) |
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70 { |
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71 ifView->ReadUintL( TPtrC( COMMDB_ID ), bearerId ); |
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72 // Find out right bearer record and read IF name |
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73 if ( bearerId == iapBearerId ) |
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74 { |
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75 // Read the IF name, it is returned in the method |
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76 // parameter |
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77 ifView->ReadTextL( TPtrC( IF_NAME ),aIfName ); |
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78 nameNotFound = EFalse; |
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79 } |
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80 // Bearer id does not match, check next record |
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81 else |
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82 { |
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83 bearerRes = ifView->GotoNextRecord(); |
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84 } |
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85 } |
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86 CleanupStack::PopAndDestroy( ifView ); |
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87 } |
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88 // IAP id does not match, check next record |
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89 else |
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90 { |
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91 res = view->GotoNextRecord(); |
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92 } |
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93 } |
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94 CleanupStack::PopAndDestroy( view ); |
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95 CleanupStack::PopAndDestroy( theDb ); |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // UpnpFileUtil::MatchIfNameWithIpInterface |
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100 // Matches IF name with IP address of the TCP/IP stack interfaces. |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 EXPORT_C TInetAddr MatchIfNameWithIpInterface( RSocketServ& aSocketServer, |
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104 TDesC& aIfName, |
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105 TInt& aInterfaceIndex ) |
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106 { |
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107 // Buffer for IP address |
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108 const TUint KAddrOutputLength = 50; |
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109 TBuf<KAddrOutputLength> address; |
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110 TPckgBuf<TSoInetInterfaceInfo> info; |
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111 TInetAddr localIpAddress; |
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112 TInetAddr autoIpAddress; |
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113 TInt autoIfIndex = 0; |
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114 RSocket sock; |
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115 TBool autoIpFound = EFalse; |
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116 TBool ipFound = EFalse; |
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117 |
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118 _LIT( KUdpProtocol, "udp" ); |
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119 _LIT( KLoop4Interface, "loop4" ); |
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120 _LIT( KLoop6Interface, "loop6" ); |
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121 _LIT( KNoAddress, "0.0.0.0"); |
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122 _LIT( KLocalHost, "127.0.0.1"); |
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123 _LIT( KWlanIPv6IfSearchString, "wlan6[*"); |
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124 _LIT( KWlanIPv4IfSearchString, "wlan[*"); |
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125 _LIT( KWlanIfMatchString, "wlan*"); |
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126 _LIT( KEtherIfSearchString, "eth[*"); |
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127 _LIT( KEtherIfMatchString, "eth*"); |
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128 // BT PAN is the same for both info and NIF name |
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129 _LIT( KBtPanIfSearchString, "btpannif*"); |
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130 _LIT( KAutoIpMatch, "169.254.*"); |
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131 |
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132 //the default interface index |
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133 aInterfaceIndex = 0; |
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134 |
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135 TInt ret= sock.Open( aSocketServer, KUdpProtocol ); |
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136 if ( KErrNone == ret ) |
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137 { |
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138 ret = sock.SetOpt( KSoInetEnumInterfaces, KSolInetIfCtrl ); |
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139 } |
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140 |
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141 if ( KErrNone == ret ) |
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142 { |
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143 while( KErrNone == sock.GetOpt( |
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144 KSoInetNextInterface, KSolInetIfCtrl, info ) ) |
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145 { |
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146 |
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147 // If state is up and name is not empty, loop4 or loop6, |
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148 // then get the address |
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149 if ( ( EIfUp == info().iState ) && |
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150 ( 0 != info().iName.Length() ) && |
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151 ( 0 != info().iName.Match( KLoop4Interface ) ) && |
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152 ( 0 != info().iName.Match( KLoop6Interface ) ) ) |
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153 { |
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154 // Check if we have valid IP |
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155 address.Zero(); |
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156 info().iAddress.Output( address ); |
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157 |
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158 if ( ( 0 < address.Length() ) && |
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159 ( 0 != address.Match( KNoAddress ) ) && |
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160 ( 0 != address.Match( KLocalHost ) ) ) |
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161 { |
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162 |
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163 // read index of interface |
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164 |
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165 TPckgBuf<TSoInetIfQuery> query; |
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166 query().iName = info().iName; |
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167 |
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168 TInt index; |
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169 ret=sock.GetOpt(KSoInetIfQueryByName, KSolInetIfQuery, query); |
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170 if(KErrNone==ret) |
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171 { |
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172 index = query().iIndex; |
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173 |
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174 // For ethernet, WLAN and BT PAN interfaces, |
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175 // change the match string to suit right interfaces |
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176 if ( 0 <= info().iName.MatchC( KEtherIfSearchString ) ) |
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177 { |
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178 // Set the IF name for ETH Match operation below. |
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179 info().iName.Copy( KEtherIfMatchString ); |
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180 } |
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181 else if ( 0 <= info().iName.MatchC( |
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182 KWlanIPv4IfSearchString ) ) |
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183 { |
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184 // Set the IF name for WLAN Match operation below. |
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185 info().iName.Copy( KWlanIfMatchString ); |
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186 } |
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187 else if ( 0 <= info().iName.MatchC( |
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188 KBtPanIfSearchString ) ) |
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189 { |
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190 // Set the IF name for BT PAN Match operation below. |
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191 info().iName.Copy( KBtPanIfSearchString ); |
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192 } |
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193 |
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194 // Exlude IPv6 addresses, they are not supported. |
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195 // If IF name matches with the one given as parameter, |
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196 // then we have the same interface with IP. |
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197 if ( ( 0 > info().iName.MatchC( KWlanIPv6IfSearchString ) ) && |
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198 ( 0 <= aIfName.MatchC( info().iName ) ) ) |
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199 { |
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200 // If the address is auto-ip, check whether there |
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201 // is also DHCP IP in the same interface. |
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202 if ( 0 <= address.Match( KAutoIpMatch ) ) |
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203 { |
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204 autoIpFound = ETrue; |
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205 autoIpAddress = info().iAddress; |
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206 autoIpAddress.ConvertToV4(); |
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207 autoIfIndex = index; |
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208 } |
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209 // Other than auto IP |
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210 else |
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211 { |
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212 ipFound = ETrue; |
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213 localIpAddress = info().iAddress; |
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214 // we're using ipv4 addresses |
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215 localIpAddress.ConvertToV4(); |
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216 aInterfaceIndex = index; |
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217 } |
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218 } |
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219 } |
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220 } |
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221 } |
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222 } |
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223 } |
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224 sock.Close(); |
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225 |
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226 // If only auto-IP was found, then return it. |
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227 // If only DHCP IP was found or also auto-IP, then return the |
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228 // DHCP IP which is already placed in localIpAddress variable. |
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229 // It is not possible that there is no IP as the connection has |
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230 // been started already by the UPnP application and this method can't |
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231 // be called if there is no connection. |
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232 if ( !ipFound && autoIpFound ) |
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233 { |
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234 localIpAddress = autoIpAddress; |
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235 aInterfaceIndex = autoIfIndex; |
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236 } |
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237 |
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238 address.Zero(); |
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239 localIpAddress.Output( address ); |
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240 |
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241 // return the address |
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242 return localIpAddress; |
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243 } |
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244 } |
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245 |
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246 // End of File |