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1 /* |
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2 * Copyright (c) 2007 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 CDevEncStarterMmcObserver |
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15 * |
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16 * Version : %version: 9 %, %date_modified: Fri Nov 13 11:16:40 2009 % by %derived_by: e0326969 % |
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17 */ |
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18 |
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19 |
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20 #include <centralrepository.h> |
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21 #include <DevEncExternalCRKeys.h> |
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22 #include <DevEncEngineConstants.h> |
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23 #include "DevEncLog.h" |
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24 #include "DevEncMmcObserver.h" |
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25 #include "DevEncStarterMmcObserver.h" |
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26 #include "DevEncStarterMemoryEntity.h" |
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27 #include "DevEncStarterUtils.h" |
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28 #include "DevEncUids.hrh" |
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29 #include "MmcInfo.h" |
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30 |
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31 const TInt mmcDrive( /*EDriveE*/EDriveF ); |
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32 //const TInt KPowerKeyCode( EKeyPowerOff ); |
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33 //const TInt KPowerKeyScanCode( EStdKeyPowerOff ); |
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34 |
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35 // ----------------------------------------------------------------------------- |
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36 // CDevEncStarterMmcObserver::NewL |
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37 // Two-phased constructor. |
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38 // ----------------------------------------------------------------------------- |
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39 CDevEncStarterMmcObserver* CDevEncStarterMmcObserver::NewL( |
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40 CDevEncStarterUtils*& aUtils ) |
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41 { |
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42 CDevEncStarterMmcObserver* self = |
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43 new ( ELeave ) CDevEncStarterMmcObserver( aUtils ); |
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44 CleanupStack::PushL( self ); |
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45 self->ConstructL(); |
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46 CleanupStack::Pop( self ); |
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47 return self; |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CDevEncStarterMmcObserver::CDevEncStarterMmcObserver |
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52 // |
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53 // ----------------------------------------------------------------------------- |
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54 CDevEncStarterMmcObserver::CDevEncStarterMmcObserver( |
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55 CDevEncStarterUtils*& aUtils ) |
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56 : iUtils( aUtils ) |
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57 { |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // CDevEncStarterMmcObserver::ConstructL |
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62 // |
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63 // ----------------------------------------------------------------------------- |
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64 void CDevEncStarterMmcObserver::ConstructL() |
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65 { |
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66 DFLOG( "CDevEncStarterMmcObserver::ConstructL" ); |
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67 // Central repository settings |
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68 iCrSettings = CRepository::NewL( TUid::Uid( KCRDevEncUiSettings ) ); |
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69 |
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70 DFLOG( "ObsCon 1" ); |
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71 |
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72 // Create objects representing the different types of memory |
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73 // The order is important |
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74 CDevEncStarterMemoryEntity* phoneMemory = |
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75 CDevEncStarterMemoryEntity::NewLC( EPhoneMemory ); |
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76 iMemEntities.AppendL( phoneMemory ); |
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77 CleanupStack::Pop( phoneMemory ); |
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78 |
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79 DFLOG( "ObsCon 2" ); |
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80 |
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81 CDevEncStarterMemoryEntity* memoryCard = |
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82 CDevEncStarterMemoryEntity::NewLC( EMemoryCard ); |
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83 iMemEntities.AppendL( memoryCard ); |
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84 CleanupStack::Pop( memoryCard ); |
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85 |
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86 DFLOG( "ObsCon 3" ); |
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87 CDevEncStarterMemoryEntity* massMemory = |
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88 CDevEncStarterMemoryEntity::NewLC( EPrimaryPhoneMemory ); |
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89 |
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90 iMemEntities.AppendL( massMemory ); |
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91 CleanupStack::Pop( massMemory ); |
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92 |
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93 // Create an MMC file system observer |
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94 User::LeaveIfError( iFs.Connect() ); |
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95 iObserver = CMmcObserver::NewL( this, &iFs ); |
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96 iObserver->StartObserver(); |
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97 |
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98 DFLOG( "ObsCon 4" ); |
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99 |
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100 // Call the MMC callback function once to get the initial card status |
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101 MMCStatusChangedL(); |
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102 |
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103 DFLOG( "ObsCon 5" ); |
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104 |
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105 // This class needs to observe memory card status changes. |
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106 // (This call results in a call to UpdateInfo, hence we need to be fully |
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107 // constructed before this.) |
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108 iMemEntities[ EMemoryCard ]->AddObserverL( this ); |
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109 |
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110 DFLOG( "ObsCon 6" ); |
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111 |
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112 } |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // CDevEncStarterMmcObserver::~CDevEncStarterMmcObserver |
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116 // |
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117 // ----------------------------------------------------------------------------- |
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118 CDevEncStarterMmcObserver::~CDevEncStarterMmcObserver() |
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119 { |
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120 delete iObserver; |
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121 iFs.Close(); |
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122 |
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123 if ( iMemEntities.Count() > EMemoryCard ) |
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124 { |
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125 iMemEntities[ EMemoryCard ]->RemoveObserver( this ); |
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126 for ( TInt i = 0; i < iMemEntities.Count(); i++ ) |
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127 { |
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128 delete iMemEntities[i]; |
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129 } |
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130 iMemEntities.Close(); |
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131 } |
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132 delete iCrSettings; |
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133 } |
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134 |
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135 // ----------------------------------------------------------------------------- |
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136 // CDevEncStarterMmcObserver::MMCStatusChangedL |
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137 // From MMemoryCardObserver |
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138 // ----------------------------------------------------------------------------- |
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139 void CDevEncStarterMmcObserver::MMCStatusChangedL() |
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140 { |
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141 DFLOG( "CDevEncStarterMmcObserver::MMCStatusChangedL" ); |
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142 TVolumeInfo volInfo; |
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143 |
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144 TInt err = iFs.Volume( volInfo, /*EDriveE*/EDriveF ); |
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145 switch ( err ) |
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146 { |
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147 case KErrNone: |
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148 { |
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149 // Readable MMC inserted |
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150 DFLOG( "MMC inserted" ); |
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151 iMmcStatus = EMmcOk; |
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152 |
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153 break; |
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154 } |
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155 |
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156 case KErrNotReady: |
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157 { |
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158 // MMC ejected |
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159 DFLOG( "MMC ejected" ); |
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160 iMmcStatus = EMmcNotPresent; |
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161 //This is because for some reason when the memory card is ejected the Disk status observer is not notified |
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162 //thus the Ui is started even if the MMC is removed. |
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163 iMemEntities[ EMemoryCard ]->SetState( EUnmounted ); |
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164 break; |
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165 } |
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166 |
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167 case KErrCorrupt: |
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168 { |
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169 // Corrupt or unformatted MMC, or wrong key |
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170 DFLOG( "MMC corrupt, unformatted or encrypted with other key" ); |
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171 iMmcStatus = EMmcNotReadable; |
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172 |
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173 break; |
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174 } |
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175 |
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176 default: |
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177 { |
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178 DFLOG2( "RFs::Volume returned error %d", err ); |
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179 break; |
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180 } |
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181 } // switch |
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182 } |
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183 |
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184 // ----------------------------------------------------------------------------- |
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185 // CDevEncStarterMmcObserver::GetInfo |
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186 // From MMemoryCardObserver |
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187 // ----------------------------------------------------------------------------- |
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188 TInt CDevEncStarterMmcObserver::GetInfo( TMmcInfo& aInfo ) |
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189 { |
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190 TVolumeInfo volInfo; |
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191 TDriveInfo driveInfo; |
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192 |
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193 // Check if MMC mounted |
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194 TInt err = CheckMMC(); |
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195 |
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196 DFLOG2( "CDevEncStarterMmcObserver::GetInfo - CheckMMC returned %d", err ); |
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197 |
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198 if( !err ) |
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199 { |
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200 // MMC is mounted, get further information |
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201 err = iFs.Drive( driveInfo, mmcDrive ); |
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202 |
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203 DFLOG2( "CDevEncStarterMmcObserver::GetInfo - iFs.Drive returned %d", err ); |
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204 DFLOG3( "CDevEncStarterMmcObserver::GetInfo - driveInfo.iDriveAtt %d, driveInfo.iMediaAtt %d", |
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205 driveInfo.iDriveAtt, |
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206 driveInfo.iMediaAtt ); |
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207 |
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208 if ( !err ) |
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209 { |
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210 aInfo.iIsFormattable = driveInfo.iMediaAtt & KMediaAttFormattable; |
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211 aInfo.iIsLockable = driveInfo.iMediaAtt & KMediaAttLockable; |
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212 aInfo.iIsLocked = driveInfo.iMediaAtt & KMediaAttLocked; |
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213 aInfo.iIsReadOnly = driveInfo.iMediaAtt & KMediaAttWriteProtected; |
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214 aInfo.iIsPasswordSet = driveInfo.iMediaAtt & KMediaAttHasPassword; |
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215 |
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216 if ( !aInfo.iIsLocked ) |
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217 { |
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218 // Then get volume info for name etc. |
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219 err = iFs.Volume( volInfo, mmcDrive ); |
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220 //#if defined _DEBUG |
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221 #if 0 |
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222 TBuf<50> tempDes1; // helpers for showing valid memory amount, which do not fit in 32 bits |
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223 TBuf<50> tempDes2; |
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224 |
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225 tempDes1.Num( volInfo.iSize ); |
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226 tempDes2.Num( volInfo.iFree ); |
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227 DFLOG2( "CDevEncStarterMmcObserver::GetInfo - iFs.Volume returned %d", err ); |
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228 DFLOG2( "CDevEncStarterMmcObserver::GetInfo - volInfo iUniqueID %d, iSize, iFree, iName:", |
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229 volInfo.iUniqueID ); |
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230 DFLOGBUF( tempDes1 ); |
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231 DFLOGBUF( tempDes2 ); |
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232 DFLOGBUF( volInfo.iName ); |
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233 #endif // _DEBUG |
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234 } |
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235 else |
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236 { |
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237 err = KErrLocked; |
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238 } |
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239 } |
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240 else |
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241 { |
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242 err = KErrNotReady; |
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243 } |
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244 } |
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245 |
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246 DFLOG2( "CDevEncStarterMmcObserver::GetInfo - err %d", err ); |
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247 |
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248 if( !err ) |
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249 { |
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250 // MMC ok, get rest of the information |
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251 aInfo.iIsInserted = ETrue; |
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252 aInfo.iIsInUse = EFalse; |
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253 aInfo.iName = volInfo.iName; |
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254 aInfo.iUid = volInfo.iUniqueID; |
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255 // Use all 64 bits |
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256 aInfo.iCapacity = volInfo.iSize; |
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257 aInfo.iSpaceFree = volInfo.iFree; |
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258 |
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259 // Check if the volume is formatted |
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260 aInfo.iIsFormatted = volInfo.iSize > 0; |
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261 |
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262 // Test if a previous backup exists |
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263 aInfo.iBackupExists = EFalse; //BaflUtils::FileExists( iFs, aBackupFile ); |
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264 } |
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265 else |
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266 { |
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267 // By default set values as |
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268 aInfo.iIsInserted = EFalse; |
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269 aInfo.iIsInUse = EFalse; |
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270 aInfo.iIsFormatted = EFalse; |
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271 aInfo.iBackupExists = EFalse; |
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272 |
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273 switch( err ) |
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274 { |
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275 case KErrInUse: |
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276 { |
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277 aInfo.iIsInserted = ETrue; |
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278 aInfo.iIsInUse = ETrue; |
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279 break; |
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280 } |
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281 case KErrNotReady: |
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282 { |
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283 // If card is not ready, but media attributes set, it is reserved. |
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284 if ( driveInfo.iMediaAtt ) |
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285 { |
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286 aInfo.iIsInserted = ETrue; |
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287 aInfo.iIsInUse = ETrue; |
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288 } |
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289 break; |
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290 } |
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291 case KErrCorrupt: |
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292 { |
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293 aInfo.iIsInserted = ETrue; |
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294 break; |
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295 } |
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296 case KErrLocked: |
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297 { |
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298 // Could not mount due card locked or volume info query returned card locked. |
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299 // Hence info-flags possibly set accoring to iMediaAtt are overridden. |
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300 aInfo.iIsInserted = ETrue; |
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301 aInfo.iIsFormatted = ETrue; |
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302 aInfo.iIsLocked = ETrue; |
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303 aInfo.iIsPasswordSet = ETrue; |
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304 aInfo.iIsLockable = ETrue; |
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305 break; |
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306 } |
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307 default: |
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308 { |
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309 break; |
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310 } |
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311 } |
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312 } |
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313 |
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314 return err; |
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315 } |
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316 |
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317 // ----------------------------------------------------------------------------- |
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318 // CDevEncStarterMmcObserver::CheckMMC |
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319 // |
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320 // ----------------------------------------------------------------------------- |
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321 TInt CDevEncStarterMmcObserver::CheckMMC() |
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322 { |
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323 // Check if MMC mounted, mount if required |
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324 TFullName fsname; |
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325 |
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326 // If can't use the drive, returns KErrNotFound |
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327 TInt err = iFs.FileSystemName( fsname, mmcDrive ); |
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328 |
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329 if ( !err ) |
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330 { |
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331 // MMC found. Checking if it is mounted |
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332 if ( fsname.Length( ) == 0 ) |
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333 { |
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334 // MMC not mounted ( file system name is empty ) |
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335 DFLOG( "Mmc not mounted" ); |
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336 err = KErrDisMounted; |
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337 } |
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338 } |
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339 return err; |
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340 } |
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341 |
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342 // ----------------------------------------------------------------------------- |
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343 // CDevEncStarterMmcObserver::CheckMMC |
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344 // |
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345 // ----------------------------------------------------------------------------- |
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346 void CDevEncStarterMmcObserver::LogInfo( const TMmcInfo& aInfo ) const |
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347 { |
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348 DFLOG2( "aInfo.iIsFormattable %d", aInfo.iIsFormattable ? 1 : 0 ); |
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349 DFLOG2( "aInfo.iIsFormatted %d", aInfo.iIsFormatted ? 1 : 0 ); |
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350 DFLOG2( "aInfo.iIsLockable %d", aInfo.iIsLockable ? 1 : 0 ); |
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351 DFLOG2( "aInfo.iIsLocked %d", aInfo.iIsLocked ? 1 : 0 ); |
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352 DFLOG2( "aInfo.iIsReadOnly %d", aInfo.iIsReadOnly ? 1 : 0 ); |
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353 DFLOG2( "aInfo.iIsPasswordSet %d", aInfo.iIsPasswordSet ? 1 : 0 ); |
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354 DFLOG2( "aInfo.iIsInserted %d", aInfo.iIsInserted ? 1 : 0 ); |
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355 DFLOG2( "aInfo.iBackupExists %d", aInfo.iBackupExists ? 1 : 0 ); |
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356 DFLOG2( "aInfo.iIsInUse %d", aInfo.iIsInUse ? 1 : 0 ); |
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357 } |
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358 |
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359 // -------------------------------------------------------------------------- |
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360 // Called by memory entity when memory status changes. |
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361 // |
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362 // -------------------------------------------------------------------------- |
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363 void CDevEncStarterMmcObserver::UpdateInfo( TDevEncUiMemoryType aType, |
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364 TUint aState, |
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365 TUint /*aProgress*/ ) |
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366 { |
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367 DFLOG3( "CDevEncStarterMmcObserver::UpdateInfo, type %d, state %d", |
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368 aType, aState ); |
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369 DFLOG2( "Phone state %d", iPhoneEncState ); |
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370 DFLOG2( "Mmc state %d", iMmcStatus ); |
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371 |
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372 TBool startUi = NeedToStartUi( aType, aState ); |
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373 |
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374 if ( aType == EPhoneMemory ) |
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375 { |
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376 iPhoneEncState = aState; |
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377 } |
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378 else // EMemoryCard |
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379 { |
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380 iMmcEncState = aState; |
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381 } |
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382 |
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383 if ( startUi ) |
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384 { |
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385 TInt error( KErrNone ); |
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386 TRAP( error, iUtils->StartAppL( KDevEncUiUid, |
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387 this ) ); |
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388 DFLOG2( "App start requested, result %d", error ); |
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389 } |
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390 } |
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391 |
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392 // ----------------------------------------------------------------------------- |
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393 // CDevEncStarterMmcObserver::NeedToStartUi |
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394 // |
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395 // ----------------------------------------------------------------------------- |
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396 TBool CDevEncStarterMmcObserver::NeedToStartUi( TDevEncUiMemoryType aType, |
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397 TUint aState ) |
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398 { |
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399 TBool startUi( EFalse ); |
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400 |
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401 DFLOG2( "CDevEncStarterMmcObserver::NeedToStartUi => aState = %d", |
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402 aState ); |
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403 DFLOG2( "CDevEncStarterMmcObserver::NeedToStartUi => iMmcStatus = %d", |
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404 iMmcStatus ); |
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405 DFLOG2( "CDevEncStarterMmcObserver::NeedToStartUi => iMmcEncState = %d", |
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406 iMmcEncState ); |
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407 |
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408 // Check encryption key status |
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409 TInt mmcKeyInDriver( 0 ); |
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410 TInt error = iCrSettings->Get( KDevEncUserSettingMemoryCard, |
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411 mmcKeyInDriver ); |
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412 if ( error ) |
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413 { |
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414 DFLOG2( "Cenrep get error %d", error ); |
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415 return startUi; |
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416 } |
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417 |
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418 if ( ( iMmcStatus == EMmcOk ) && |
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419 ( iMmcEncState == EUnmounted ) && |
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420 ( aState == EDecrypted ) ) |
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421 { |
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422 // A readable memory card has just been inserted |
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423 |
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424 if ( mmcKeyInDriver ) |
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425 { |
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426 // We have a valid encryption key, but the newly inserted |
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427 // card is decrypted. Ask if the user wants to encrypt. |
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428 // (see UI spec 2.13) |
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429 startUi = ETrue; |
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430 } |
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431 } |
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432 |
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433 if ( ( iMmcStatus == EMmcNotReadable ) && |
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434 ( iMmcEncState == EUnmounted ) && |
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435 ( aState == ECorrupted ) ) |
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436 { |
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437 // An unreadable memory card has just been inserted |
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438 |
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439 if ( mmcKeyInDriver ) |
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440 { |
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441 // We seem to have the wrong encryption key in the driver. |
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442 // Inform the user that the card cannot be used. |
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443 // (see UI spec 2.16) |
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444 startUi = ETrue; |
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445 } |
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446 else |
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447 { |
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448 // We have no encryption key in the driver. |
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449 // Ask if the user wants to import a key and decrypt. |
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450 // (see UI spec 2.17) |
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451 startUi = ETrue; |
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452 } |
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453 } |
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454 |
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455 if ( ( iMmcStatus == EMmcNotReadable ) && |
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456 ( iMmcEncState == ECorrupted ) && |
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457 ( aState == ECorrupted ) ) |
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458 { |
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459 // We have an unreadable memory card, and tried to load a new key |
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460 // but the card is still unreadable. Inform the user and let the user |
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461 // select some other key. (see UI spec 2.10) |
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462 startUi = ETrue; |
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463 } |
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464 |
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465 if ( ( iMmcStatus == EMmcOk ) && |
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466 ( iMmcEncState == ECorrupted ) && |
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467 ( aState == EEncrypted ) ) |
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468 { |
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469 // We have just imported the correct key and the card is now |
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470 // readable. Show a note to the user. |
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471 // (see UI spec 2.7) |
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472 startUi = ETrue; |
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473 } |
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474 return startUi; |
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475 } |
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476 |
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477 |
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478 // ----------------------------------------------------------------------------- |
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479 // CDevEncStarterMmcObserver::AppStarted |
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480 // |
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481 // ----------------------------------------------------------------------------- |
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482 void CDevEncStarterMmcObserver::AppStarted( const TUint32& aUid ) |
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483 { |
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484 if ( !iUtils ) |
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485 { |
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486 DFLOG( "CDevEncStarterMmcObserver::AppStarted error: no utils" ); |
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487 return; |
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488 } |
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489 } |
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490 |
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491 // End of file |