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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: Media stream component class implementation |
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15 * |
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16 */ |
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17 |
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18 #include "natfwcandidate.h" |
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19 #include "natfwcandidatepair.h" |
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20 #include "mnatfwsocketmediaconnwrapper.h" |
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21 #include "nspsessionobserver.h" |
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22 #include "nspmediastreamcomponent.h" |
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23 #include "nspnatfwasyncstate.h" |
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24 #include "nspcontrollerif.h" |
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25 #include "nspdefs.h" |
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26 |
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27 const TUint KNSPFetchCandTimerInMicros = 7000000; // 7 seconds |
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28 const TUint KNSPRtcpComponentId = 2; |
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29 |
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30 #define TOINETADDR_L( aDesc, aPort ) ConvertTDesC8ToTInetAddrL( aDesc, aPort ) |
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31 #define NATFWRECEIVING_L( aCand, aState ) \ |
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32 iController.SetReceivingStateL( aCand, aState ) |
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33 #define NATFWSENDING_L( aCand, aState ) \ |
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34 iController.SetSendingStateL( aCand, aState, iRemoteAddress, iRemotePort ) |
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35 |
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36 |
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37 // ======== MEMBER FUNCTIONS ======== |
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38 // --------------------------------------------------------------------------- |
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39 // CNSPMediaStreamComponent::CNSPMediaStreamComponent |
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40 // --------------------------------------------------------------------------- |
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41 // |
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42 CNSPMediaStreamComponent::CNSPMediaStreamComponent( MNSPControllerIF& aController, |
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43 TUint aSessionId, TUint aCollectionId, TUint aComponentId ) |
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44 : iController( aController ), |
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45 iSessionId( aSessionId ), |
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46 iCollectionId( aCollectionId ), |
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47 iComponentId( aComponentId ) |
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48 { |
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49 } |
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50 |
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51 |
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52 // --------------------------------------------------------------------------- |
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53 // CNSPMediaStreamComponent::ConstructL |
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54 // --------------------------------------------------------------------------- |
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55 // |
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56 void CNSPMediaStreamComponent::ConstructL( const TDesC8& aAddress, TUint aPort, |
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57 TUint aProtocol, TUint aMediaTos ) |
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58 { |
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59 TInetAddr addr = TOINETADDR_L( aAddress, aPort ); |
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60 iAddrFamily = addr.Family(); |
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61 |
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62 iStreamId = iController.CreateStreamL( |
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63 iSessionId, aProtocol, static_cast<TInt>( aMediaTos ) ); |
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64 iWrapper = &iController.CreateWrapperL( iSessionId, iStreamId ); |
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65 |
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66 iWrapper->SetIncomingAddrL( addr ); |
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67 iWrapper->SetReceivingStateL( EStreamingStateActive ); |
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68 iWrapper->SetSendingStateL( EStreamingStateActive ); |
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69 |
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70 iState = CNSPNATFWAsyncState::NewL(); |
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71 iRemoteAddress.Assign( KNullDesC8().AllocL() ); |
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72 } |
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73 |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // CNSPMediaStreamComponent::NewL |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 CNSPMediaStreamComponent* CNSPMediaStreamComponent::NewL( |
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80 MNSPControllerIF& aController, TUint aSessionId, |
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81 TUint aCollectionId, TUint aComponentId, const TDesC8& aAddress, |
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82 TUint aPort, TUint aProtocol, TUint aMediaTos ) |
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83 { |
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84 CNSPMediaStreamComponent* self = CNSPMediaStreamComponent::NewLC( |
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85 aController, aSessionId, aCollectionId, aComponentId, |
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86 aAddress, aPort, aProtocol, aMediaTos ); |
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87 CleanupStack::Pop( self ); |
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88 return self; |
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89 } |
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90 |
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91 |
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92 // --------------------------------------------------------------------------- |
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93 // CNSPMediaStreamComponent::NewLC |
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94 // --------------------------------------------------------------------------- |
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95 // |
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96 CNSPMediaStreamComponent* CNSPMediaStreamComponent::NewLC( |
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97 MNSPControllerIF& aController, TUint aSessionId, TUint aCollectionId, |
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98 TUint aComponentId, const TDesC8& aAddress, TUint aPort, |
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99 TUint aProtocol, TUint aMediaTos ) |
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100 { |
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101 CNSPMediaStreamComponent* self = new ( ELeave ) CNSPMediaStreamComponent( |
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102 aController, aSessionId, aCollectionId, aComponentId ); |
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103 CleanupStack::PushL( self ); |
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104 self->ConstructL( aAddress, aPort, aProtocol, aMediaTos ); |
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105 return self; |
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106 } |
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107 |
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108 |
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109 // --------------------------------------------------------------------------- |
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110 // CNSPMediaStreamComponent::~CNSPMediaStreamComponent |
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111 // --------------------------------------------------------------------------- |
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112 // |
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113 CNSPMediaStreamComponent::~CNSPMediaStreamComponent() |
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114 { |
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115 iRemoteAddress.Close(); |
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116 iWrapper = NULL; |
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117 delete iState; |
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118 delete iCandidatePair; |
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119 iLocalCandidates.ResetAndDestroy(); |
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120 iLocalCandidates.Close(); |
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121 iController.Cancel( iTimerTransactionId ); |
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122 TRAP_IGNORE( iController.CloseStreamL( iSessionId, iStreamId ) ) |
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123 } |
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124 |
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125 // --------------------------------------------------------------------------- |
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126 // CNSPMediaStreamComponent::ControlMediaL |
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127 // --------------------------------------------------------------------------- |
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128 // |
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129 TNatReturnStatus CNSPMediaStreamComponent::ControlMediaL( |
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130 MNATFWConnectivityObserver::TNATFWConnectivityEvent aEvent, |
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131 TInt aError, TAny* aData ) |
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132 { |
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133 NSPLOG_STR( "CNSPMediaStreamComponent::ControlMediaL(), Entry" ) |
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134 |
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135 TNatReturnStatus status = KNatAsync; |
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136 |
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137 switch ( aEvent ) |
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138 { |
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139 case MNATFWConnectivityObserver::ELocalCandidateFound: |
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140 { |
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141 iLocalCandidates.AppendL( reinterpret_cast<CNATFWCandidate*>(aData) ); |
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142 break; |
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143 } |
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144 |
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145 case MNATFWConnectivityObserver::ECandidatePairFound: |
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146 { |
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147 delete iCandidatePair; |
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148 iCandidatePair = reinterpret_cast<CNATFWCandidatePair*>(aData); |
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149 break; |
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150 } |
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151 |
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152 case MNATFWConnectivityObserver::EReceivingActivated: |
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153 { |
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154 status = HandleReceivingActivated( aError ); |
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155 break; |
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156 } |
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157 |
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158 case MNATFWConnectivityObserver::ESendingActivated: |
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159 { |
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160 status = HandleSendingActivated( aError ); |
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161 break; |
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162 } |
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163 |
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164 case MNATFWConnectivityObserver::EFetchingCompleted: |
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165 { |
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166 status = HandleFetchingCompleted( aError ); |
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167 break; |
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168 } |
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169 |
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170 case MNATFWConnectivityObserver::EConnChecksCompleted: |
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171 { |
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172 status = HandleConnChecksCompleted( aError ); |
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173 break; |
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174 } |
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175 |
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176 case MNATFWConnectivityObserver::EReceivingDeactivated: |
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177 { |
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178 status = HandleReceivingDeActivated( aError ); |
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179 break; |
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180 } |
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181 |
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182 case MNATFWConnectivityObserver::ESendingDeactivated: |
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183 { |
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184 status = HandleSendingDeActivated( aError ); |
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185 break; |
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186 } |
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187 |
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188 case MNATFWConnectivityObserver::EGeneralError: |
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189 { |
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190 status = ErrorOccurred( aError ); |
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191 break; |
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192 } |
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193 |
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194 case MNATFWConnectivityObserver::ESessionCreated: |
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195 default: |
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196 { |
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197 User::Leave( KErrNotReady ); |
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198 } |
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199 } |
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200 |
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201 NSPLOG_INT( "CNSPMediaStreamComponent::ControlMediaL(), Exit, status", status ) |
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202 return status; |
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203 } |
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204 |
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205 |
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206 // --------------------------------------------------------------------------- |
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207 // CNSPMediaStreamComponent::ResetAndDestroyCandidates |
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208 // --------------------------------------------------------------------------- |
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209 // |
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210 void CNSPMediaStreamComponent::ResetAndDestroyCandidates() |
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211 { |
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212 iLocalCandidates.ResetAndDestroy(); |
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213 } |
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214 |
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215 |
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216 // --------------------------------------------------------------------------- |
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217 // CNSPMediaStreamComponent::FetchCandidateL |
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218 // --------------------------------------------------------------------------- |
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219 // |
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220 void CNSPMediaStreamComponent::FetchCandidateL() |
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221 { |
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222 iState->CheckStateL( CNSPNATFWAsyncState::ENATFWEventFetchCand ); |
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223 |
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224 iController.FetchCandidateL( iSessionId, iStreamId, iAddrFamily ); |
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225 iTimerTransactionId = iController.OrderTimeoutL( iSessionId, iStreamId, |
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226 MNATFWConnectivityObserver::EFetchingCompleted, |
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227 KNSPFetchCandTimerInMicros ); |
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228 |
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229 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventFetchCand ); |
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230 } |
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231 |
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232 |
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233 // --------------------------------------------------------------------------- |
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234 // CNSPMediaStreamComponent::FetchCandidatesL |
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235 // --------------------------------------------------------------------------- |
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236 // |
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237 void CNSPMediaStreamComponent::FetchCandidatesL() |
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238 { |
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239 iState->CheckStateL( CNSPNATFWAsyncState::ENATFWEventFetchCand ); |
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240 |
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241 iController.FetchCandidatesL( iSessionId, |
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242 iStreamId, iCollectionId, iComponentId, iAddrFamily ); |
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243 iTimerTransactionId = iController.OrderTimeoutL( iSessionId, iStreamId, |
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244 MNATFWConnectivityObserver::EFetchingCompleted, |
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245 KNSPFetchCandTimerInMicros ); |
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246 |
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247 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventFetchCand ); |
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248 } |
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249 |
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250 |
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251 // --------------------------------------------------------------------------- |
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252 // CNSPMediaStreamComponent::PerformCandidateChecksL |
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253 // --------------------------------------------------------------------------- |
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254 // |
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255 void CNSPMediaStreamComponent::PerformCandidateChecksL() |
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256 { |
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257 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventPerformChecks ); |
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258 } |
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259 |
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260 |
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261 // --------------------------------------------------------------------------- |
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262 // CNSPMediaStreamComponent::ActivateL |
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263 // --------------------------------------------------------------------------- |
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264 // |
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265 void CNSPMediaStreamComponent::ActivateL( const TDesC8& aAddress, TUint aPort ) |
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266 { |
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267 iState->CheckStateL( CNSPNATFWAsyncState::ENATFWEventRecvAct ); |
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268 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventRecvDeAct ); |
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269 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventSendDeAct ); |
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270 |
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271 iRemoteAddress.Close(); |
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272 iRemoteAddress.Assign( aAddress.AllocL() ); |
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273 iRemotePort = aPort; |
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274 |
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275 __ASSERT_ALWAYS( iLocalCandidates.Count(), User::Leave( KErrNotReady ) ); |
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276 NATFWRECEIVING_L( *iLocalCandidates[0], EStreamingStateActive ); |
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277 NATFWSENDING_L( *iLocalCandidates[0], EStreamingStateActive ); |
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278 } |
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279 |
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280 |
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281 // --------------------------------------------------------------------------- |
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282 // CNSPMediaStreamComponent::ActivateL |
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283 // --------------------------------------------------------------------------- |
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284 // |
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285 void CNSPMediaStreamComponent::ActivateL() |
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286 { |
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287 __ASSERT_ALWAYS( iCandidatePair, User::Leave( KErrNotReady ) ); |
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288 |
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289 iState->CheckStateL( CNSPNATFWAsyncState::ENATFWEventRecvAct ); |
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290 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventRecvDeAct ); |
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291 iState->ChangeStateL( CNSPNATFWAsyncState::ENATFWEventSendDeAct ); |
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292 |
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293 iRemoteAddress.Close(); |
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294 iRemoteAddress.Assign( iCandidatePair->RemoteCandidate().TransportDomainAddr().AllocL() ); |
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295 iRemotePort = iCandidatePair->RemoteCandidate().TransportDomainPort(); |
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296 |
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297 NATFWRECEIVING_L( iCandidatePair->LocalCandidate(), EStreamingStateActive ); |
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298 NATFWSENDING_L( iCandidatePair->LocalCandidate(), EStreamingStateActive ); |
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299 } |
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300 |
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301 |
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302 // --------------------------------------------------------------------------- |
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303 // CNSPMediaStreamComponent::DeActivateL |
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304 // --------------------------------------------------------------------------- |
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305 // |
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306 void CNSPMediaStreamComponent::DeActivateL() |
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307 { |
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308 iState->CheckStateL( CNSPNATFWAsyncState::ENATFWEventRecvDeAct ); |
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309 |
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310 __ASSERT_ALWAYS( iLocalCandidates.Count(), User::Leave( KErrNotReady ) ); |
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311 NATFWRECEIVING_L( *iLocalCandidates[0], EStreamingStatePassive ); |
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312 NATFWSENDING_L( *iLocalCandidates[0], EStreamingStatePassive ); |
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313 } |
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314 |
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315 |
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316 // --------------------------------------------------------------------------- |
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317 // CNSPMediaStreamComponent::RemoteAddress |
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318 // --------------------------------------------------------------------------- |
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319 // |
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320 const TDesC8& CNSPMediaStreamComponent::RemoteAddress() const |
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321 { |
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322 return iRemoteAddress; |
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323 } |
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324 |
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325 |
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326 // --------------------------------------------------------------------------- |
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327 // CNSPMediaStreamComponent::RemotePort |
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328 // --------------------------------------------------------------------------- |
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329 // |
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330 TUint CNSPMediaStreamComponent::RemotePort() const |
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331 { |
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332 return iRemotePort; |
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333 } |
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334 |
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335 |
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336 // --------------------------------------------------------------------------- |
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337 // CNSPMediaStreamComponent::StreamId |
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338 // --------------------------------------------------------------------------- |
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339 // |
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340 TUint CNSPMediaStreamComponent::StreamId() const |
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341 { |
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342 return iStreamId; |
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343 } |
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344 |
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345 |
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346 // --------------------------------------------------------------------------- |
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347 // CNSPMediaStreamComponent::ComponentId |
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348 // --------------------------------------------------------------------------- |
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349 // |
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350 TUint CNSPMediaStreamComponent::ComponentId() const |
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351 { |
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352 return iComponentId; |
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353 } |
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354 |
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355 |
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356 // --------------------------------------------------------------------------- |
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357 // CNSPMediaStreamComponent::LocalCandidates |
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358 // --------------------------------------------------------------------------- |
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359 // |
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360 RPointerArray<CNATFWCandidate>& CNSPMediaStreamComponent::LocalCandidates() |
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361 { |
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362 return iLocalCandidates; |
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363 } |
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364 |
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365 |
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366 // --------------------------------------------------------------------------- |
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367 // CNSPMediaStreamComponent::IceLocalCandidateL |
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368 // --------------------------------------------------------------------------- |
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369 // |
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370 const CNATFWCandidate& CNSPMediaStreamComponent::IceLocalCandidateL() |
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371 { |
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372 __ASSERT_ALWAYS( iCandidatePair, User::Leave( KErrNotReady ) ); |
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373 return iCandidatePair->LocalCandidate(); |
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374 } |
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375 |
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376 |
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377 // --------------------------------------------------------------------------- |
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378 // CNSPMediaStreamComponent::IceRemoteCandidateL |
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379 // --------------------------------------------------------------------------- |
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380 // |
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381 const CNATFWCandidate& CNSPMediaStreamComponent::IceRemoteCandidateL() |
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382 { |
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383 __ASSERT_ALWAYS( iCandidatePair, User::Leave( KErrNotReady ) ); |
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384 return iCandidatePair->RemoteCandidate(); |
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385 } |
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386 |
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387 |
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388 // --------------------------------------------------------------------------- |
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389 // CNSPMediaStreamComponent::OutgoingAddress |
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390 // --------------------------------------------------------------------------- |
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391 // |
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392 TInt CNSPMediaStreamComponent::OutgoingAddress( TDes8& aAddress, TUint& aPort ) const |
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393 { |
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394 TInetAddr address; |
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395 iWrapper->OutgoingAddr( address ); |
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396 TRAPD( error, ConvertTInetAddrToTDes8AndTUintL( address, aAddress, aPort ) ); |
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397 return error; |
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398 } |
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399 |
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400 |
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401 // --------------------------------------------------------------------------- |
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402 // CNSPMediaStreamComponent::SetCredentialsL |
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403 // --------------------------------------------------------------------------- |
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404 // |
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405 void CNSPMediaStreamComponent::SetCredentialsL( const CNATFWCredentials& aCredentials ) |
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406 { |
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407 iController.SetCredentialsL( iSessionId, iStreamId, aCredentials ); |
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408 } |
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409 |
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410 |
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411 // --------------------------------------------------------------------------- |
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412 // CNSPMediaStreamComponent::AttachCandidateL |
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413 // --------------------------------------------------------------------------- |
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414 // |
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415 TBool CNSPMediaStreamComponent::AttachCandidateL( CNATFWCandidate& aCandidate ) const |
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416 { |
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417 if ( aCandidate.ComponentId() == iComponentId ) |
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418 { |
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419 aCandidate.SetStreamId( iStreamId ); |
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420 return ETrue; |
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421 } |
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422 |
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423 return EFalse; |
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424 } |
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425 |
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426 |
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427 // --------------------------------------------------------------------------- |
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428 // CNSPMediaStreamComponent::HandleReceivingActivated |
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429 // --------------------------------------------------------------------------- |
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430 // |
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431 TNatReturnStatus CNSPMediaStreamComponent::HandleReceivingActivated( |
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432 TInt aError ) |
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433 { |
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434 TInt error = iState->CheckState( CNSPNATFWAsyncState::ENATFWEventRecvAct ); |
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435 |
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436 if ( KErrNone == error && KErrNone == aError ) |
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437 { |
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438 iState->ChangeState( CNSPNATFWAsyncState::ENATFWEventRecvAct ); |
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439 return Continue(); |
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440 } |
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441 else if ( KErrNone == aError ) |
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442 { |
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443 return ErrorOccurred( error ); |
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444 } |
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445 else |
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446 { |
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447 return ErrorOccurred( aError ); |
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448 } |
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449 } |
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450 |
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451 |
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452 // --------------------------------------------------------------------------- |
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453 // CNSPMediaStreamComponent::HandleSendingActivated |
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454 // --------------------------------------------------------------------------- |
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455 // |
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456 TNatReturnStatus CNSPMediaStreamComponent::HandleSendingActivated( |
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457 TInt aError ) |
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458 { |
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459 TInt error = iState->CheckState( CNSPNATFWAsyncState::ENATFWEventSendAct ); |
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460 |
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461 if ( KErrNone == error && KErrNone == aError ) |
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462 { |
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463 iState->ChangeState( CNSPNATFWAsyncState::ENATFWEventSendAct ); |
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464 return Continue(); |
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465 } |
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466 else if ( KErrNone == aError ) |
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467 { |
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468 return ErrorOccurred( error ); |
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469 } |
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470 else |
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471 { |
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472 return ErrorOccurred( aError ); |
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473 } |
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474 } |
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475 |
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476 |
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477 // --------------------------------------------------------------------------- |
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478 // CNSPMediaStreamComponent::HandleReceivingDeActivated |
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479 // --------------------------------------------------------------------------- |
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480 // |
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481 TNatReturnStatus CNSPMediaStreamComponent::HandleReceivingDeActivated( |
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482 TInt aError ) |
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483 { |
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484 TInt error = iState->CheckState( CNSPNATFWAsyncState::ENATFWEventRecvDeAct ); |
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485 |
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486 if ( KErrNone == error && KErrNone == aError ) |
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487 { |
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488 iState->ChangeState( CNSPNATFWAsyncState::ENATFWEventRecvDeAct ); |
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489 return Continue(); |
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490 } |
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491 else if ( KErrNone == aError ) |
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492 { |
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493 return ErrorOccurred( error ); |
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494 } |
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495 else |
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496 { |
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497 return ErrorOccurred( aError ); |
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498 } |
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499 } |
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500 |
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501 |
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502 // --------------------------------------------------------------------------- |
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503 // CNSPMediaStreamComponent::HandleSendingDeActivated |
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504 // --------------------------------------------------------------------------- |
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505 // |
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506 TNatReturnStatus CNSPMediaStreamComponent::HandleSendingDeActivated( |
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507 TInt aError ) |
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508 { |
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509 TInt error = iState->CheckState( CNSPNATFWAsyncState::ENATFWEventSendDeAct ); |
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510 |
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511 if ( KErrNone == error && KErrNone == aError ) |
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512 { |
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513 iState->ChangeState( CNSPNATFWAsyncState::ENATFWEventSendDeAct ); |
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514 return Continue(); |
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515 } |
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516 else if ( KErrNone == aError ) |
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517 { |
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518 return ErrorOccurred( error ); |
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519 } |
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520 else |
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521 { |
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522 return ErrorOccurred( aError ); |
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523 } |
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524 } |
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525 |
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526 |
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527 // --------------------------------------------------------------------------- |
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528 // CNSPMediaStreamComponent::HandleFetchingCompleted |
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529 // --------------------------------------------------------------------------- |
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530 // |
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531 TNatReturnStatus CNSPMediaStreamComponent::HandleFetchingCompleted( TInt aError ) |
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532 { |
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533 iController.Cancel( iTimerTransactionId ); |
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534 |
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535 TNatReturnStatus status = |
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536 ( KErrNone == aError ? Continue() : ErrorOccurred( aError ) ); |
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537 |
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538 if ( iLocalCandidates.Count() ) |
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539 { |
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540 const CNATFWCandidate& candidate = *iLocalCandidates[0]; |
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541 |
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542 // local candidates are never in FQDN format |
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543 if ( candidate.Type() == CNATFWCandidate::EServerReflexive && |
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544 candidate.Base().CmpAddr( candidate.TransportAddr() ) ) |
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545 { |
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546 // we are not behind NAT, no need to proceed with NATFW |
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547 NSPLOG_STR( |
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548 "CNSPMediaStreamComponent::HandleFetchingCompleted, NO NAT" ) |
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549 status = KNatNonFatalErrorLimit; |
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550 } |
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551 } |
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552 |
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553 return status; |
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554 } |
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555 |
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556 |
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557 // --------------------------------------------------------------------------- |
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558 // CNSPMediaStreamComponent::HandleConnChecksCompleted |
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559 // --------------------------------------------------------------------------- |
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560 // |
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561 TNatReturnStatus CNSPMediaStreamComponent::HandleConnChecksCompleted( TInt aError ) |
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562 { |
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563 return ( KErrNone == aError ? Continue() : ErrorOccurred( aError ) ); |
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564 } |
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565 |
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566 |
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567 // --------------------------------------------------------------------------- |
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568 // CNSPMediaStreamComponent::Continue |
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569 // --------------------------------------------------------------------------- |
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570 // |
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571 TNatReturnStatus CNSPMediaStreamComponent::Continue() |
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572 { |
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573 return ( iState->Continue() ? KNatReady : KNatAsync ); |
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574 } |
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575 |
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576 |
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577 // --------------------------------------------------------------------------- |
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578 // CNSPMediaStreamComponent::ErrorOccurred |
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579 // --------------------------------------------------------------------------- |
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580 // |
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581 TNatReturnStatus CNSPMediaStreamComponent::ErrorOccurred( TInt aError ) |
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582 { |
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583 NSPLOG_INT( "CNSPMediaStreamComponent::ErrorOccurred():", aError ) |
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584 |
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585 return ( KErrTimedOut == aError || |
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586 SuppressRtcpIcmp( aError ) ? Continue() : aError ); |
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587 } |
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588 |
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589 |
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590 // --------------------------------------------------------------------------- |
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591 // CNSPMediaStream::SuppressRtcpIcmp |
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592 // --------------------------------------------------------------------------- |
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593 // |
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594 TBool CNSPMediaStreamComponent::SuppressRtcpIcmp( TInt aError ) const |
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595 { |
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596 return ( KNSPRtcpComponentId == iComponentId && NSP_ICMP( aError ) ); |
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597 } |
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598 |
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599 |
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600 // end of file |