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1 /* |
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2 * Copyright (c) 2010 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: |
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15 * |
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16 */ |
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17 |
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18 #include "btnotifincomingpairinghandler.h" |
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19 #include "btnotifsecuritymanager.h" |
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20 #include "btnotifoutgoingpairinghandler.h" |
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21 #include <btengconstants.h> |
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22 #include "bluetoothtrace.h" |
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23 |
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24 const TInt KBTNotifWaitingForPairingOkDelay = 500000; // 0.5s |
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25 |
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26 enum TPairingStageId |
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27 { |
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28 /** |
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29 * is monitoring physical link status |
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30 */ |
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31 EPhysicalLinkNotify = 100, |
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32 EWaitingForPairingOk, |
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33 }; |
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34 |
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35 // ======== MEMBER FUNCTIONS ======== |
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36 |
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37 // --------------------------------------------------------------------------- |
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38 // C++ default constructor |
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39 // --------------------------------------------------------------------------- |
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40 // |
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41 CBTNotifIncomingPairingHandler::CBTNotifIncomingPairingHandler( CBTNotifSecurityManager& aParent, |
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42 const TBTDevAddr& aAddr) : CBTNotifBasePairingHandler( aParent, aAddr ) |
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43 { |
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44 } |
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45 |
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46 // --------------------------------------------------------------------------- |
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47 // 2nd phase constructor |
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48 // --------------------------------------------------------------------------- |
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49 // |
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50 void CBTNotifIncomingPairingHandler::ConstructL() |
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51 { |
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52 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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53 BaseConstructL(); |
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54 iActivePairingOk = CBtSimpleActive::NewL(*this, EWaitingForPairingOk ); |
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55 User::LeaveIfError( iPairingOkTimer.CreateLocal() ); |
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56 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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57 } |
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58 |
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59 // --------------------------------------------------------------------------- |
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60 // NewL |
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61 // --------------------------------------------------------------------------- |
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62 // |
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63 CBTNotifBasePairingHandler* CBTNotifIncomingPairingHandler::NewL( CBTNotifSecurityManager& aParent, |
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64 const TBTDevAddr& aAddr) |
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65 { |
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66 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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67 CBTNotifIncomingPairingHandler* self = new (ELeave) CBTNotifIncomingPairingHandler(aParent, aAddr); |
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68 CleanupStack::PushL( self ); |
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69 self->ConstructL(); |
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70 CleanupStack::Pop( self ); |
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71 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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72 return self; |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Destructor |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 CBTNotifIncomingPairingHandler::~CBTNotifIncomingPairingHandler() |
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80 { |
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81 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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82 // Cancel all outstanding requests |
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83 CancelPlaNotification(); |
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84 iPla.Close(); |
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85 delete iActivePairingOk; |
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86 iPairingOkTimer.Close(); |
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87 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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88 } |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // Accept this message only if the specified device is the same as this is |
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92 // dealing with. |
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93 // --------------------------------------------------------------------------- |
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94 // |
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95 TInt CBTNotifIncomingPairingHandler::ObserveIncomingPair( const TBTDevAddr& aAddr ) |
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96 { |
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97 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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98 TInt err( KErrServerBusy ); |
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99 if ( iAddr == aAddr ) |
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100 { |
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101 err = KErrNone; |
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102 // This function is called by a notifier, which means the UI has been involved |
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103 // Therefore we can display it in the paired devices list |
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104 iUserAwarePairing = ETrue; |
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105 if ( !iActive->IsActive() && !OpenPhysicalLinkAdaptor() ) |
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106 { |
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107 // If we are observing physical link, or showing user a note, |
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108 // we won't interrupt it. |
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109 UnSetPairResult(); |
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110 MonitorPhysicalLink(); |
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111 } |
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112 } |
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113 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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114 return err; |
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115 } |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // Assign the responsibility of outgoing pair handling to CBTEngOtgPair |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 void CBTNotifIncomingPairingHandler::HandleOutgoingPairL( const TBTDevAddr& aAddr, TUint aCod ) |
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122 { |
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123 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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124 // Outgoing pairing always takes highest priority: |
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125 CBTNotifBasePairingHandler* pairinghandler = CBTNotifOutgoingPairingHandler::NewL( iParent, aAddr ); |
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126 pairinghandler->HandleOutgoingPairL( aAddr, aCod ); |
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127 iParent.RenewPairingHandler( pairinghandler ); |
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128 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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129 } |
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130 |
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131 // --------------------------------------------------------------------------- |
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132 // Accept this message only if the specified device is the same as this is |
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133 // dealing with. |
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134 // --------------------------------------------------------------------------- |
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135 // |
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136 void CBTNotifIncomingPairingHandler::StopPairHandling( const TBTDevAddr& aAddr ) |
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137 { |
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138 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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139 if ( aAddr == iAddr ) |
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140 { |
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141 iParent.RenewPairingHandler( NULL ); |
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142 } |
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143 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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144 } |
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145 |
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146 // --------------------------------------------------------------------------- |
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147 // Notify user if pairing failed. |
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148 // --------------------------------------------------------------------------- |
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149 // |
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150 void CBTNotifIncomingPairingHandler::DoHandlePairServerResult( TInt aResult ) |
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151 { |
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152 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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153 CancelPlaNotification(); |
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154 // For a successful pairing, we need wait for registry table change. |
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155 if( aResult != KErrNone && aResult != KHCIErrorBase ) |
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156 { |
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157 // Pair failure situation. |
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158 SetPairResult( aResult ); |
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159 } |
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160 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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161 } |
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162 |
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163 // --------------------------------------------------------------------------- |
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164 // Kill this if the linkkey type indicates OBEX authentication. |
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165 // Otherwise notify user the pair result. |
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166 // --------------------------------------------------------------------------- |
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167 // |
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168 void CBTNotifIncomingPairingHandler::DoHandleRegistryNewPairedEvent( const TBTNamelessDevice& aDev ) |
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169 { |
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170 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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171 |
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172 // First of all cancel the iPairingOkTimer timer, if active |
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173 if (iActivePairingOk->IsActive()) |
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174 { |
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175 iActivePairingOk->Cancel(); |
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176 UnSetPairResult(); // we might have set it before (if the link went down) so we want to reset it. |
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177 } |
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178 if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedNonUpgradable && !iUserAwarePairing) |
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179 { |
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180 // If an application uses btengconnman API to connect a service of |
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181 // this device and JW pairing occurred as part of security enforcement, |
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182 // it shall be a user aware pairing, and we shall add this device in paired |
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183 // view. In this way, user is able to disconnect the device from our UI. |
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184 // Otherwise the link key has been created by a device without IO requesting |
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185 // a service connection with phone. We won't take any action (e.g. remove |
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186 // link key) in this case. As the result, this device can't be seen in our UI, |
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187 // however other applications are still freely to use its services. |
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188 BOstrace0(TRACE_DEBUG,DUMMY_DEVLIST,"[BTNotif]: JW pairing with no IO device"); |
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189 TBTEngConnectionStatus status = iParent.ConnectStatus( aDev.Address() ); |
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190 if ( status == EBTEngConnecting || status == EBTEngConnected ) |
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191 { |
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192 // the return error is ingore as we can not have other proper |
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193 // exception handling option: |
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194 (void) iParent.AddUiCookieJustWorksPaired( aDev ); |
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195 } |
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196 TRAP_IGNORE(ShowPairingResultNoteL(KErrNone)); |
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197 iParent.RenewPairingHandler( NULL ); |
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198 } |
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199 else if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedUpgradable && !iUserAwarePairing) |
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200 { |
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201 // The linkkey has been created by an incoming OBEX service request |
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202 // which resulted a pairing event received from pair server. |
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203 BOstrace0(TRACE_DEBUG,DUMMY_DEVLIST,"[BTNotif]: JW pairing with IO device"); |
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204 iParent.RenewPairingHandler( NULL ); |
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205 } |
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206 else |
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207 { |
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208 if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedNonUpgradable || aDev.LinkKeyType() == ELinkKeyUnauthenticatedUpgradable) |
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209 { |
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210 // The user was involved in the pairing, so display in the paired devices list |
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211 (void) iParent.AddUiCookieJustWorksPaired(aDev); |
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212 } |
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213 BOstrace0(TRACE_DEBUG,DUMMY_DEVLIST,"[BTNotif]: Non-JW pairing"); |
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214 // Other pairing model than Just Works: |
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215 CancelPlaNotification(); |
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216 SetPairResult( KErrNone ); |
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217 TRAP_IGNORE(ShowPairingResultNoteL(KErrNone)); |
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218 iParent.RenewPairingHandler( NULL ); |
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219 } |
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220 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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221 } |
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222 |
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223 // --------------------------------------------------------------------------- |
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224 // From class MBTNotifPairingAOObserver. |
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225 // --------------------------------------------------------------------------- |
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226 // |
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227 void CBTNotifIncomingPairingHandler::RequestCompletedL( CBtSimpleActive* aActive, TInt aStatus ) |
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228 { |
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229 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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230 // Check which request completed. |
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231 switch( aActive->RequestId() ) |
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232 { |
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233 case EPhysicalLinkNotify: |
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234 { |
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235 // Check if the link has disconnected. |
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236 HandlePhysicalLinkResultL( aStatus ); |
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237 break; |
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238 } |
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239 case EWaitingForPairingOk: |
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240 { |
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241 // pairing failed, inform user: |
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242 if (iPairResult == KErrNone) |
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243 { |
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244 // iPairResult must have been set as an error. if it's not it means somewhere else |
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245 // it has been reset. But we need to have it set to an error as we are notifying |
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246 // the "unable to pair" message. |
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247 SetPairResult(KErrGeneral); |
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248 } |
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249 iParent.RenewPairingHandler( NULL ); |
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250 break; |
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251 } |
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252 default: |
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253 // Should not be possible, but no need for handling. |
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254 break; |
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255 } |
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256 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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257 } |
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258 |
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259 |
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260 // --------------------------------------------------------------------------- |
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261 // From class MBTNotifPairingAOObserver. |
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262 // cancels an outstanding request according to the given id. |
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263 // --------------------------------------------------------------------------- |
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264 // |
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265 void CBTNotifIncomingPairingHandler::CancelRequest( TInt aRequestId ) |
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266 { |
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267 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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268 switch ( aRequestId ) |
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269 { |
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270 case EPhysicalLinkNotify: |
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271 { |
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272 iPla.CancelNextBasebandChangeEventNotifier(); |
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273 break; |
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274 } |
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275 case EWaitingForPairingOk: |
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276 { |
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277 iPairingOkTimer.Cancel(); |
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278 break; |
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279 } |
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280 } |
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281 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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282 } |
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283 |
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284 // --------------------------------------------------------------------------- |
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285 // From class MBTNotifPairingAOObserver. |
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286 // Handles a leave in RequestCompleted by simply self-destructing. |
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287 // --------------------------------------------------------------------------- |
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288 // |
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289 void CBTNotifIncomingPairingHandler::HandleError( CBtSimpleActive* aActive, TInt aError ) |
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290 { |
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291 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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292 (void) aActive; |
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293 (void) aError; |
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294 // Our error handling is to just stop observing. |
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295 // Nothing critical to be preserved here, the user |
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296 // just won't get any notification of pairing result. |
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297 iParent.RenewPairingHandler( NULL ); |
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298 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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299 } |
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300 |
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301 // --------------------------------------------------------------------------- |
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302 // Subscribe to physical link notifications. |
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303 // physical link must exist when calling this function. |
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304 // --------------------------------------------------------------------------- |
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305 // |
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306 void CBTNotifIncomingPairingHandler::MonitorPhysicalLink() |
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307 { |
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308 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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309 iActive->SetRequestId( EPhysicalLinkNotify ); |
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310 // Subscribe to disconnect and error events. |
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311 iPla.NotifyNextBasebandChangeEvent( iBbEvent, |
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312 iActive->RequestStatus(), |
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313 ENotifyPhysicalLinkDown | ENotifyPhysicalLinkError ); |
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314 iActive->GoActive(); |
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315 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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316 } |
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317 |
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318 // --------------------------------------------------------------------------- |
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319 // Opens the adaptor if physical link exists. |
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320 // --------------------------------------------------------------------------- |
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321 // |
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322 TInt CBTNotifIncomingPairingHandler::OpenPhysicalLinkAdaptor() |
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323 { |
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324 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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325 TInt err ( KErrNone ); |
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326 if( !iPla.IsOpen() ) |
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327 { |
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328 // Try to open the adapter in case it failed earlier. |
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329 // This can happen for outgoing dedicated bonding with |
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330 // non-SSP device, as the PIN dialog can be kept open even |
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331 // though the link has dropped because of a time-out. |
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332 err = iPla.Open( iParent.SocketServ(), iAddr ); |
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333 } |
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334 BOstrace1(TRACE_DEBUG,DUMMY_DEVLIST,"[BTNotif]:HasPhysicalLink ? %d", iPla.IsOpen() ); |
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335 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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336 return err; |
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337 } |
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338 |
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339 // --------------------------------------------------------------------------- |
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340 // Cancel outstanding physical link notification |
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341 // --------------------------------------------------------------------------- |
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342 // |
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343 void CBTNotifIncomingPairingHandler::CancelPlaNotification() |
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344 { |
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345 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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346 if( iActive && iActive->RequestId() == EPhysicalLinkNotify ) |
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347 { |
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348 // cancel Baseband monitor |
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349 iActive->Cancel(); |
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350 } |
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351 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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352 } |
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353 |
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354 // --------------------------------------------------------------------------- |
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355 // Handle a physical link event. Notify pair failed if physical link is down. |
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356 // --------------------------------------------------------------------------- |
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357 // |
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358 void CBTNotifIncomingPairingHandler::HandlePhysicalLinkResultL( TInt aResult ) |
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359 { |
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360 BOstraceFunctionEntry0( DUMMY_DEVLIST ); |
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361 // Check if the connection is still alive. |
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362 TBool physicalLinkDown = |
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363 ( iBbEvent().EventType() == ENotifyPhysicalLinkDown | ENotifyPhysicalLinkError ); |
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364 |
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365 if( aResult || physicalLinkDown ) |
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366 { |
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367 // link went down. It might be because of pairing failed or the remote device disconnected the |
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368 // physical link after a successful pairing. |
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369 // we wait for 0.5 secs before notifying the "unable to pair" message as, if the pair is |
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370 // successful, we manage it to show the right confirmation message. |
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371 SetPairResult( (aResult == 0) ? KErrGeneral : aResult ); |
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372 iPairingOkTimer.After(iActivePairingOk->iStatus, KBTNotifWaitingForPairingOkDelay); |
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373 iActivePairingOk->GoActive(); |
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374 } |
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375 else |
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376 { |
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377 // Uninteresting event, re-subscribe. |
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378 MonitorPhysicalLink(); |
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379 } |
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380 BOstraceFunctionExit0( DUMMY_DEVLIST ); |
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381 } |
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382 |
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383 |
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384 |