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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 "btnotifpairingmanager.h" |
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20 #include "btnotifoutgoingpairinghandler.h" |
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21 #include <btengconstants.h> |
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22 |
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23 const TInt KBTNotifWaitingForPairingOkDelay = 500000; // 0.5s |
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24 |
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25 enum TPairingStageId |
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26 { |
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27 /** |
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28 * is monitoring physical link status |
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29 */ |
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30 EPhysicalLinkNotify = 100, |
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31 EWaitingForPairingOk, |
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32 }; |
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33 |
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34 // ======== MEMBER FUNCTIONS ======== |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 // C++ default constructor |
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38 // --------------------------------------------------------------------------- |
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39 // |
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40 CBTNotifIncomingPairingHandler::CBTNotifIncomingPairingHandler( CBTNotifPairingManager& aParent, |
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41 const TBTDevAddr& aAddr) : CBTNotifBasePairingHandler( aParent, aAddr ) |
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42 { |
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43 } |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // 2nd phase constructor |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 void CBTNotifIncomingPairingHandler::ConstructL() |
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50 { |
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51 BaseConstructL(); |
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52 iActivePairingOk = CBtSimpleActive::NewL(*this, EWaitingForPairingOk ); |
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53 User::LeaveIfError( iPairingOkTimer.CreateLocal() ); |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // NewL |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 CBTNotifBasePairingHandler* CBTNotifIncomingPairingHandler::NewL( CBTNotifPairingManager& aParent, |
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61 const TBTDevAddr& aAddr) |
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62 { |
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63 CBTNotifIncomingPairingHandler* self = new (ELeave) CBTNotifIncomingPairingHandler(aParent, aAddr); |
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64 CleanupStack::PushL( self ); |
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65 self->ConstructL(); |
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66 CleanupStack::Pop( self ); |
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67 return self; |
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68 } |
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69 |
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70 // --------------------------------------------------------------------------- |
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71 // Destructor |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 CBTNotifIncomingPairingHandler::~CBTNotifIncomingPairingHandler() |
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75 { |
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76 // TRACE_FUNC_ENTRY |
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77 // Cancel all outstanding requests |
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78 CancelPlaNotification(); |
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79 iPla.Close(); |
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80 delete iActivePairingOk; |
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81 iPairingOkTimer.Close(); |
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82 // TRACE_FUNC_EXIT |
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83 } |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // Accept this message only if the specified device is the same as this is |
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87 // dealing with. |
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88 // --------------------------------------------------------------------------- |
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89 // |
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90 TInt CBTNotifIncomingPairingHandler::ObserveIncomingPair( const TBTDevAddr& aAddr ) |
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91 { |
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92 TInt err( KErrServerBusy ); |
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93 if ( iAddr == aAddr ) |
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94 { |
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95 err = KErrNone; |
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96 iUserAwarePairing = ETrue; // This function is called by a notifier, which means the UI has been involved |
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97 // Therefore we can display it in the paired devices list |
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98 if ( !iActive->IsActive() && !OpenPhysicalLinkAdaptor() ) |
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99 { |
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100 // If we are observing physical link, or showing user a note, |
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101 // we won't interrupt it. |
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102 UnSetPairResult(); |
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103 MonitorPhysicalLink(); |
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104 } |
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105 } |
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106 return err; |
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107 } |
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108 |
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109 // --------------------------------------------------------------------------- |
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110 // Assign the responsibility of outgoing pair handling to CBTEngOtgPair |
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111 // --------------------------------------------------------------------------- |
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112 // |
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113 void CBTNotifIncomingPairingHandler::HandleOutgoingPairL( const TBTDevAddr& aAddr, TUint aCod ) |
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114 { |
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115 // TRACE_FUNC_ENTRY |
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116 // Outgoing pairing always takes highest priority: |
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117 CBTNotifBasePairingHandler* pairinghandler = CBTNotifOutgoingPairingHandler::NewL( iParent, aAddr ); |
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118 pairinghandler->HandleOutgoingPairL( aAddr, aCod ); |
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119 iParent.RenewPairingHandler( pairinghandler ); |
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120 // TRACE_FUNC_EXIT |
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121 } |
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122 |
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123 // --------------------------------------------------------------------------- |
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124 // Accept this message only if the specified device is the same as this is |
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125 // dealing with. |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 void CBTNotifIncomingPairingHandler::StopPairHandling( const TBTDevAddr& aAddr ) |
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129 { |
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130 if ( aAddr == iAddr ) |
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131 { |
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132 // TRACE_FUNC_ENTRY |
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133 iParent.RenewPairingHandler( NULL ); |
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134 // TRACE_FUNC_EXIT |
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135 } |
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136 } |
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137 |
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138 // --------------------------------------------------------------------------- |
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139 // Notify user if pairing failed. |
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140 // --------------------------------------------------------------------------- |
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141 // |
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142 void CBTNotifIncomingPairingHandler::DoHandlePairServerResult( TInt aResult ) |
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143 { |
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144 CancelPlaNotification(); |
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145 // For a successful pairing, we need wait for registry table change. |
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146 if( aResult != KErrNone && aResult != KHCIErrorBase ) |
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147 { |
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148 // Pair failure situation. |
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149 SetPairResult( aResult ); |
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150 // todo: show pairing failure note. |
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151 } |
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152 } |
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153 |
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154 // --------------------------------------------------------------------------- |
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155 // Kill this if the linkkey type indicates OBEX authentication. |
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156 // Otherwise notify user the pair result. |
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157 // --------------------------------------------------------------------------- |
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158 // |
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159 void CBTNotifIncomingPairingHandler::DoHandleRegistryNewPairedEvent( const TBTNamelessDevice& aDev ) |
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160 { |
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161 // TRACE_FUNC_ENTRY |
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162 |
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163 // First of all cancel the iPairingOkTimer timer, if active |
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164 if (iActivePairingOk->IsActive()) |
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165 { |
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166 iActivePairingOk->Cancel(); |
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167 UnSetPairResult(); // we might have set it before (if the link went down) so we want to reset it. |
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168 } |
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169 if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedNonUpgradable && !iUserAwarePairing) |
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170 { |
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171 // If an application uses btengconnman API to connect a service of |
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172 // this device and JW pairing occurred as part of security enforcement, |
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173 // it shall be a user aware pairing, and we shall add this device in paired |
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174 // view. In this way, user is able to disconnect the device from our UI. |
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175 // Otherwise the link key has been created by a device without IO requesting |
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176 // a service connection with phone. We won't take any action (e.g. remove |
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177 // link key) in this case. As the result, this device can't be seen in our UI, |
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178 // however other applications are still freely to use its services. |
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179 // TRACE_INFO(_L("[BTEng]: CBTEngIncPair: JW pairing with no IO device" ) ) |
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180 TBTEngConnectionStatus status = iParent.ConnectStatus( aDev.Address() ); |
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181 if ( status == EBTEngConnecting || status == EBTEngConnected ) |
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182 { |
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183 // the return error is ingore as we can not have other proper |
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184 // exception handling option: |
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185 (void) iParent.AddUiCookieJustWorksPaired( aDev ); |
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186 } |
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187 iParent.RenewPairingHandler( NULL ); |
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188 } |
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189 else if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedUpgradable && !iUserAwarePairing) |
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190 { |
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191 // The linkkey has been created by an incoming OBEX service request |
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192 // which resulted a pairing event received from pair server. |
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193 // TRACE_INFO(_L("[BTEng]: CBTEngIncPair: JW pairing with IO device" ) ) |
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194 iParent.RenewPairingHandler( NULL ); |
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195 } |
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196 else |
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197 { |
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198 if (aDev.LinkKeyType() == ELinkKeyUnauthenticatedNonUpgradable || aDev.LinkKeyType() == ELinkKeyUnauthenticatedUpgradable) |
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199 { |
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200 // The user was involved in the pairing, so display in the paired devices list |
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201 (void) iParent.AddUiCookieJustWorksPaired(aDev); |
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202 } |
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203 // TRACE_INFO(_L("[BTEng]: CBTEngIncPair: Non-JW pairing")) |
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204 // Other pairing model than Just Works: |
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205 CancelPlaNotification(); |
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206 SetPairResult( KErrNone ); |
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207 iParent.RenewPairingHandler( NULL ); |
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208 } |
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209 // TRACE_FUNC_EXIT |
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210 } |
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211 |
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212 // --------------------------------------------------------------------------- |
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213 // From class MBTNotifPairingAOObserver. |
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214 // --------------------------------------------------------------------------- |
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215 // |
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216 void CBTNotifIncomingPairingHandler::RequestCompletedL( CBtSimpleActive* aActive, TInt aStatus ) |
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217 { |
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218 // TRACE_FUNC_ARG( ( _L( "aId: %d, aStatus: %d"), aId, aStatus ) ) |
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219 // Check which request completed. |
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220 switch( aActive->RequestId() ) |
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221 { |
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222 case EPhysicalLinkNotify: |
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223 { |
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224 // Check if the link has disconnected. |
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225 HandlePhysicalLinkResultL( aStatus ); |
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226 break; |
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227 } |
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228 case EWaitingForPairingOk: |
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229 { |
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230 // pairing failed, inform user: |
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231 if (iPairResult == KErrNone) |
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232 { |
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233 // iPairResult must have been set as an error. if it's not it means somewhere else |
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234 // it has been reset. But we need to have it set to an error as we are notifying |
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235 // the "unable to pair" message. |
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236 SetPairResult(KErrGeneral); |
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237 } |
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238 iParent.RenewPairingHandler( NULL ); |
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239 break; |
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240 } |
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241 default: |
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242 // Should not be possible, but no need for handling. |
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243 break; |
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244 } |
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245 // TRACE_FUNC_EXIT |
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246 } |
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247 |
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248 |
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249 // --------------------------------------------------------------------------- |
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250 // From class MBTEngActiveObserver. |
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251 // cancels an outstanding request according to the given id. |
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252 // --------------------------------------------------------------------------- |
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253 // |
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254 void CBTNotifIncomingPairingHandler::CancelRequest( TInt aRequestId ) |
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255 { |
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256 switch ( aRequestId ) |
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257 { |
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258 case EPhysicalLinkNotify: |
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259 { |
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260 iPla.CancelNextBasebandChangeEventNotifier(); |
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261 } |
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262 case EWaitingForPairingOk: |
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263 { |
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264 iPairingOkTimer.Cancel(); |
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265 } |
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266 } |
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267 } |
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268 |
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269 // --------------------------------------------------------------------------- |
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270 // From class MBTNotifPairingAOObserver. |
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271 // Handles a leave in RequestCompleted by simply self-destructing. |
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272 // --------------------------------------------------------------------------- |
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273 // |
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274 void CBTNotifIncomingPairingHandler::HandleError( CBtSimpleActive* aActive, TInt aError ) |
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275 { |
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276 // TRACE_FUNC_ARG( ( _L( "request id: %d, error: %d" ), aId, aError ) ) |
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277 (void) aActive; |
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278 (void) aError; |
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279 // Our error handling is to just stop observing. |
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280 // Nothing critical to be preserved here, the user |
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281 // just won't get any notification of pairing result. |
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282 iParent.RenewPairingHandler( NULL ); |
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283 } |
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284 |
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285 // --------------------------------------------------------------------------- |
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286 // Subscribe to physical link notifications. |
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287 // physical link must exist when calling this function. |
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288 // --------------------------------------------------------------------------- |
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289 // |
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290 void CBTNotifIncomingPairingHandler::MonitorPhysicalLink() |
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291 { |
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292 // TRACE_FUNC_ENTRY |
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293 iActive->SetRequestId( EPhysicalLinkNotify ); |
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294 // Subscribe to disconnect and error events. |
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295 iPla.NotifyNextBasebandChangeEvent( iBbEvent, |
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296 iActive->RequestStatus(), |
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297 ENotifyPhysicalLinkDown | ENotifyPhysicalLinkError ); |
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298 iActive->GoActive(); |
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299 // TRACE_FUNC_EXIT |
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300 } |
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301 |
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302 // --------------------------------------------------------------------------- |
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303 // Opens the adaptor if physical link exists. |
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304 // --------------------------------------------------------------------------- |
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305 // |
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306 TInt CBTNotifIncomingPairingHandler::OpenPhysicalLinkAdaptor() |
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307 { |
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308 // TRACE_FUNC_ENTRY |
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309 TInt err ( KErrNone ); |
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310 if( !iPla.IsOpen() ) |
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311 { |
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312 // Try to open the adapter in case it failed earlier. |
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313 // This can happen for outgoing dedicated bonding with |
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314 // non-SSP device, as the PIN dialog can be kept open even |
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315 // though the link has dropped because of a time-out. |
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316 err = iPla.Open( iParent.SocketServ(), iAddr ); |
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317 } |
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318 // TRACE_INFO( (_L("[BTEng]: CBTEngIncPair::HasPhysicalLink ? %d"), iPla.IsOpen() ) ) |
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319 return err; |
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320 } |
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321 |
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322 // --------------------------------------------------------------------------- |
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323 // Cancel outstanding physical link notification |
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324 // --------------------------------------------------------------------------- |
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325 // |
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326 void CBTNotifIncomingPairingHandler::CancelPlaNotification() |
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327 { |
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328 // TRACE_FUNC_ENTRY |
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329 if( iActive && iActive->RequestId() == EPhysicalLinkNotify ) |
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330 { |
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331 // cancel Baseband monitor |
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332 iActive->Cancel(); |
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333 } |
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334 // TRACE_FUNC_EXIT |
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335 } |
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336 |
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337 // --------------------------------------------------------------------------- |
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338 // Handle a physical link event. Notify pair failed if physical link is down. |
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339 // --------------------------------------------------------------------------- |
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340 // |
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341 void CBTNotifIncomingPairingHandler::HandlePhysicalLinkResultL( TInt aResult ) |
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342 { |
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343 // TRACE_FUNC_ARG( ( _L( " BBEvent 0x%08X, code %d"), |
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344 // iBbEvent().EventType(), iBbEvent().SymbianErrorCode() ) ) |
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345 // Check if the connection is still alive. |
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346 TBool physicalLinkDown = |
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347 ( iBbEvent().EventType() == ENotifyPhysicalLinkDown | ENotifyPhysicalLinkError ); |
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348 |
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349 if( aResult || physicalLinkDown ) |
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350 { |
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351 // link went down. It might be because of pairing failed or the remote device disconnected the |
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352 // physical link after a successful pairing. |
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353 // we wait for 0.5 secs before notifying the "unable to pair" message as, if the pair is |
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354 // successful, we manage it to show the right confirmation message. |
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355 SetPairResult( (aResult == 0) ? KErrGeneral : aResult ); |
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356 iPairingOkTimer.After(iActivePairingOk->iStatus, KBTNotifWaitingForPairingOkDelay); |
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357 iActivePairingOk->GoActive(); |
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358 } |
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359 else |
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360 { |
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361 // Uninteresting event, re-subscribe. |
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362 MonitorPhysicalLink(); |
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363 } |
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364 // TRACE_FUNC_EXIT |
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365 } |
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366 |
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367 |
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368 |