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1 /* |
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2 * Copyright (c) 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: Implementation of WLAN Coverage Check class |
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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 #include <wlanmgmtclient.h> |
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20 |
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21 #include "wlancoveragecheck.h" |
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22 #include "NetworkInfoBase.h" |
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23 #include "ConnectionDialogsLogger.h" |
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24 |
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25 |
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26 /** |
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27 * Management frame information element IDs. |
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28 * needed to determine coverage |
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29 */ |
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30 enum T802Dot11InformationElementID |
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31 { |
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32 E802Dot11SsidIE = 0, |
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33 E802Dot11SupportedRatesIE = 1, |
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34 E802Doi11FhParameterSetIE = 2, |
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35 E802Dot11DsParameterSetIE = 3, |
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36 E802Dot11CfParameterSetIE = 4, |
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37 E802Dot11TimIE = 5, |
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38 E802Dot11IbssParameterSetIE = 6, |
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39 E802Dot11CountryIE = 7, |
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40 E802Dot11HoppingPatternParamIE = 8, |
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41 E802Dot11HoppingPatternTableIE = 9, |
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42 E802Dot11RequestIE = 10, |
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43 |
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44 E802Dot11ChallengeTextIE = 16, |
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45 // Reserved for challenge text extension 17 - 31 |
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46 E802Dot11ErpInformationIE = 42, |
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47 E802Dot11ExtendedRatesIE = 50, |
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48 E802Dot11AironetIE = 133, |
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49 E802Dot11ApIpAddressIE = 149, |
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50 E802Dot11RsnIE = 221 |
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51 }; |
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52 |
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53 |
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54 /** |
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55 * Bit masks for Capability Information field. |
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56 */ |
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57 enum T802Dot11CapabilityBitMask |
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58 { |
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59 E802Dot11CapabilityEssMask = 0x0001, |
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60 E802Dot11CapabilityIbssMask = 0x0002, |
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61 E802Dot11CapabilityCfPollableMask = 0x0004, |
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62 E802Dot11CapabilityCfPollRequestMask= 0x0008, |
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63 E802Dot11CapabilityPrivacyMask = 0x0010, |
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64 E802Dot11ShortPreambleMask = 0x0020, |
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65 E802Dot11PbccMask = 0x0040, |
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66 E802Dot11ChannelAgilityMask = 0x0080 |
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67 }; |
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68 |
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69 |
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70 // ======================= MEMBER FUNCTIONS ================================= |
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71 |
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72 // ---------------------------------------------------------------------------- |
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73 // CWlanCoverageCheck::CWlanCoverageCheck() |
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74 // ---------------------------------------------------------------------------- |
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75 // |
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76 CWlanCoverageCheck::CWlanCoverageCheck() |
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77 : CActive( EPriorityStandard ) |
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78 { |
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79 CActiveScheduler::Add( this ); |
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80 } |
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81 |
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82 // ---------------------------------------------------------------------------- |
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83 // CWlanCoverageCheck::~CWlanCoverageCheck() |
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84 // ---------------------------------------------------------------------------- |
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85 // |
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86 CWlanCoverageCheck::~CWlanCoverageCheck() |
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87 { |
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88 Cancel(); |
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89 } |
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90 |
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91 // ---------------------------------------------------------------------------- |
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92 // CWlanCoverageCheck::DoCancel |
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93 // ---------------------------------------------------------------------------- |
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94 // |
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95 void CWlanCoverageCheck::DoCancel() |
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96 { |
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97 iWait.AsyncStop(); |
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98 } |
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99 |
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100 // ---------------------------------------------------------------------------- |
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101 // CWlanCoverageCheck::RunL |
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102 // ---------------------------------------------------------------------------- |
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103 // |
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104 void CWlanCoverageCheck::RunL() |
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105 { |
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106 CLOG_WRITE( "RunL entered" ); |
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107 switch( iProgState ) |
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108 { |
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109 case EScanning: |
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110 { |
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111 CLOG_WRITE( "Scanning state" ); |
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112 if( !iStatus.Int() ) |
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113 // The list is ready |
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114 { |
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115 CLOG_WRITE( "No error" ); |
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116 iProgState = EDone; |
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117 iWait.AsyncStop(); |
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118 CLOG_WRITE( "wait stopped" ); |
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119 } |
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120 else |
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121 // something went wrong -> no coverage. |
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122 { |
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123 CLOG_WRITE( "error" ); |
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124 iWait.AsyncStop(); |
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125 } |
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126 } |
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127 break; |
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128 case EDone: |
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129 { |
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130 CLOG_WRITE( "State Done entered" ); |
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131 iWait.AsyncStop(); |
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132 } |
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133 break; |
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134 |
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135 default: |
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136 { |
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137 } |
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138 } |
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139 } |
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140 |
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141 |
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142 |
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143 // ---------------------------------------------------------------------------- |
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144 // CWlanCoverageCheck::ScanForPromptedSsidL |
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145 // ---------------------------------------------------------------------------- |
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146 // |
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147 TBool CWlanCoverageCheck::ScanForPromptedSsidL( TWlanSsid aEnteredSsid, |
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148 TBool aBroadcast, |
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149 TWlanConnectionMode& aConnectionMode, |
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150 TWlanConnectionSecurityMode& aSecurityMode, |
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151 TWlanConnectionExtentedSecurityMode& aExtSecurityMode, |
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152 TBool& aProtectedSetupSupported ) |
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153 { |
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154 TBool found = EFalse; |
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155 |
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156 CLOG_WRITE( "ScanForPromptedSsidL started" ); |
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157 |
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158 CWlanMgmtClient* wlanMgmt = CWlanMgmtClient::NewL(); |
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159 CleanupStack::PushL( wlanMgmt ); |
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160 CLOG_WRITE( "Client created" ); |
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161 |
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162 CWlanScanInfo* scanInfo = CWlanScanInfo::NewL(); |
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163 CleanupStack::PushL( scanInfo ); |
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164 CLOG_WRITE( "Scaninfo created" ); |
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165 |
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166 iProgState = EScanning; |
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167 CLOG_WRITE( "State set to scanning" ); |
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168 |
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169 if ( aBroadcast ) |
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170 { |
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171 wlanMgmt->GetScanResults( iStatus, *scanInfo ); |
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172 } |
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173 else |
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174 { |
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175 wlanMgmt->GetScanResults( aEnteredSsid, iStatus, *scanInfo ); |
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176 } |
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177 |
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178 CLOG_WRITE( "GetScanResult called" ); |
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179 |
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180 SetActive(); |
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181 CLOG_WRITE( "SetActive called" ); |
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182 CLOG_WRITE( "wait started" ); |
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183 iWait.Start(); |
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184 |
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185 CLOG_WRITE( "Wait returned" ); |
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186 |
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187 // now we have the results and might start to work on them... |
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188 if ( iProgState == EDone ) |
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189 { //finished without error, work on the result... |
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190 TSignalStrength signalStrength = ESignalStrengthMin; |
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191 |
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192 for ( scanInfo->First(); !scanInfo->IsDone(); scanInfo->Next() ) |
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193 { |
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194 TUint8 ieLen( 0 ); |
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195 const TUint8* ieData; |
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196 TBuf8<KWlanMaxSsidLength> ssid8; |
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197 |
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198 TInt ret = scanInfo->InformationElement( E802Dot11SsidIE, ieLen, |
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199 &ieData ); |
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200 if ( ret == KErrNone ) |
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201 { |
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202 CLOG_WRITE( "Starting copying ssid" ); |
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203 // get the ssid |
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204 ssid8.Copy( ieData, ieLen ); |
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205 CLOG_WRITE( "SSID copied" ); |
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206 |
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207 if ( !aEnteredSsid.Compare( ssid8 ) ) |
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208 { |
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209 // get the signal strength |
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210 TUint8 rxLevel8 = scanInfo->RXLevel(); |
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211 TInt rxLevel = static_cast< TInt >( rxLevel8 ); |
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212 |
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213 TSignalStrength strength = ( TSignalStrength )rxLevel; |
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214 if ( !found || ( found && strength < signalStrength ) ) |
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215 { |
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216 found = ETrue; |
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217 signalStrength = strength; |
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218 |
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219 if ( scanInfo->Capability() & |
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220 E802Dot11CapabilityEssMask ) |
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221 { |
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222 aConnectionMode = |
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223 ( TWlanConnectionMode )ENetworkModeInfrastructure; |
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224 } |
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225 else |
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226 { |
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227 aConnectionMode = |
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228 ( TWlanConnectionMode )ENetworkModeAdHoc; |
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229 } |
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230 |
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231 aSecurityMode = scanInfo->SecurityMode(); |
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232 aExtSecurityMode = scanInfo->ExtendedSecurityMode(); |
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233 aProtectedSetupSupported = |
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234 scanInfo->IsProtectedSetupSupported(); |
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235 CLOG_WRITEF( _L( "****Protected Setup in CWlanCoverageCheck::ScanForPromptedSsidL: %d***" ), aProtectedSetupSupported ); |
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236 } |
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237 } |
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238 } |
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239 else |
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240 { |
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241 User::Leave( ret ); |
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242 } |
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243 |
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244 } |
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245 |
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246 CleanupStack::PopAndDestroy( scanInfo ); |
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247 CleanupStack::PopAndDestroy( wlanMgmt ); |
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248 } |
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249 else |
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250 { |
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251 User::LeaveIfError( iStatus.Int() ); |
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252 } |
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253 |
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254 return found; |
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255 } |
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256 |
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257 |