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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: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "natfwstunbinding.h" |
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20 #include "cnatbinding.h" |
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21 #include "sipnattraversalrequestobserver.h" |
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22 #include "sipnatbindingobserver.h" |
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23 #include "cnatbindingrefresher.h" |
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24 #include "nattraversalsocketmanager.h" |
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25 |
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26 // ----------------------------------------------------------------------------- |
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27 // CNATBinding::NewL |
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28 // ----------------------------------------------------------------------------- |
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29 // |
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30 CNATBinding* CNATBinding::NewL( |
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31 TUint32 aInitialRequestId, |
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32 RSocket& aSTUNSocket, |
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33 const TInetAddr& aLocalAddr, |
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34 MSIPNATTraversalRequestObserver& aInitialRequestObserver, |
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35 MSIPNATBindingObserver& aBindingObserver, |
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36 MNATTraversalSocketManager& aSocketManager) |
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37 { |
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38 CNATBinding* self = |
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39 CNATBinding::NewLC(aInitialRequestId,aSTUNSocket,aLocalAddr, |
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40 aInitialRequestObserver,aBindingObserver, |
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41 aSocketManager); |
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42 CleanupStack::Pop(self); |
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43 return self; |
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44 } |
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45 |
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46 // ----------------------------------------------------------------------------- |
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47 // CNATBinding::NewLC |
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48 // ----------------------------------------------------------------------------- |
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49 // |
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50 CNATBinding* CNATBinding::NewLC( |
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51 TUint32 aInitialRequestId, |
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52 RSocket& aSTUNSocket, |
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53 const TInetAddr& aLocalAddr, |
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54 MSIPNATTraversalRequestObserver& aInitialRequestObserver, |
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55 MSIPNATBindingObserver& aBindingObserver, |
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56 MNATTraversalSocketManager& aSocketManager) |
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57 { |
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58 CNATBinding* self = |
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59 new(ELeave)CNATBinding(aInitialRequestId,aSTUNSocket,aLocalAddr, |
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60 aInitialRequestObserver,aBindingObserver, |
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61 aSocketManager); |
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62 CleanupStack::PushL(self); |
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63 return self; |
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64 } |
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65 |
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66 // ----------------------------------------------------------------------------- |
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67 // CNATBinding::CNATBinding |
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68 // ----------------------------------------------------------------------------- |
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69 // |
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70 CNATBinding::CNATBinding( |
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71 TUint32 aInitialRequestId, |
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72 RSocket& aSTUNSocket, |
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73 const TInetAddr& aLocalAddr, |
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74 MSIPNATTraversalRequestObserver& aInitialRequestObserver, |
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75 MSIPNATBindingObserver& aBindingObserver, |
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76 MNATTraversalSocketManager& aSocketManager) |
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77 : iInitialReqId(aInitialRequestId), |
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78 iSTUNSocket(aSTUNSocket), |
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79 iInitialReqObserver(aInitialRequestObserver), |
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80 iBindingObserver(aBindingObserver), |
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81 iSocketManager(aSocketManager), |
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82 iPublicAddr(aLocalAddr) |
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83 { |
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84 } |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // CNATBinding::~CNATBinding |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 CNATBinding::~CNATBinding() |
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91 { |
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92 iSocketManager.SendingCompleted(*this); // Make sure no requests are pending |
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93 delete iRefresher; |
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94 delete iBinding; |
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95 } |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CNATBinding::PersistentConnectionRequired |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 TBool CNATBinding::PersistentConnectionRequired() const |
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102 { |
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103 TBool persistentConnection = EFalse; |
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104 if (iRefresher) |
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105 { |
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106 persistentConnection = iRefresher->PersistentConnectionRequired(); |
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107 } |
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108 return persistentConnection; |
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109 } |
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110 |
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111 // ----------------------------------------------------------------------------- |
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112 // CNATBinding::STUNSocket |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 RSocket& CNATBinding::STUNSocket() |
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116 { |
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117 return iSTUNSocket; |
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118 } |
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119 |
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120 // ----------------------------------------------------------------------------- |
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121 // CNATBinding::SetBinding |
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122 // ----------------------------------------------------------------------------- |
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123 // |
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124 void CNATBinding::SetBinding(CSTUNBinding* aBinding) |
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125 { |
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126 delete iBinding; |
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127 iBinding = aBinding; |
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128 } |
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129 |
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130 // ----------------------------------------------------------------------------- |
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131 // CNATBinding::Binding |
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132 // ----------------------------------------------------------------------------- |
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133 // |
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134 CSTUNBinding* CNATBinding::Binding() |
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135 { |
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136 return iBinding; |
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137 } |
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138 |
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139 // ----------------------------------------------------------------------------- |
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140 // CNATBinding::SendSTUNRequestL |
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141 // ----------------------------------------------------------------------------- |
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142 // |
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143 void CNATBinding::SendSTUNRequestL() |
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144 { |
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145 __ASSERT_ALWAYS(iBinding, User::Leave(KErrNotReady)); |
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146 if (!iSocketManager.AddToSendingQueueL(*this)) |
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147 { |
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148 iBinding->SendRequestL(); |
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149 iIsSending = ETrue; |
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150 } |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CNATBinding::SetBindingFailed |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 void CNATBinding::SetBindingFailed(TInt aError) |
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158 { |
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159 SendingCompleted(); |
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160 delete iBinding; |
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161 iBinding = NULL; |
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162 if (iAddressResolved) |
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163 { |
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164 iAddressResolved = EFalse; |
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165 iBindingObserver.FlowFailure(aError); |
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166 } |
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167 else |
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168 { |
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169 iInitialReqObserver.RequestComplete(iInitialReqId,KErrNone); |
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170 } |
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171 } |
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172 |
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173 // ----------------------------------------------------------------------------- |
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174 // CNATBinding::SetPublicAddr |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 TBool CNATBinding::SetPublicAddr(const TInetAddr& aPublicAddr) |
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178 { |
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179 SendingCompleted(); |
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180 TBool removeBinding = EFalse; |
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181 if (iAddressResolved) |
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182 { |
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183 removeBinding = !aPublicAddr.CmpAddr(iPublicAddr); |
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184 } |
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185 else |
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186 { |
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187 iAddressResolved = ETrue; |
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188 TBool localAddrMatchesToPublicAddr = iPublicAddr.Match(aPublicAddr); |
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189 iPublicAddr = aPublicAddr; |
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190 if (localAddrMatchesToPublicAddr) |
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191 { |
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192 // We are not behind a NAT |
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193 iInitialReqObserver.RequestComplete(iInitialReqId,KErrNone); |
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194 } |
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195 else |
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196 { |
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197 iInitialReqObserver.PublicAddrResolved(iInitialReqId,aPublicAddr); |
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198 } |
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199 } |
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200 return removeBinding; |
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201 } |
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202 |
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203 // ----------------------------------------------------------------------------- |
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204 // CNATBinding::SetRefresher |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 void CNATBinding::SetRefresher(CNATBindingRefresher* aRefresher) |
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208 { |
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209 delete iRefresher; |
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210 iRefresher = aRefresher; |
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211 } |
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212 |
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213 // ----------------------------------------------------------------------------- |
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214 // CNATBinding::Refresher |
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215 // ----------------------------------------------------------------------------- |
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216 // |
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217 CNATBindingRefresher* CNATBinding::Refresher() |
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218 { |
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219 return iRefresher; |
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220 } |
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221 |
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222 // ----------------------------------------------------------------------------- |
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223 // CNATBinding::InitialRequestId |
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224 // ----------------------------------------------------------------------------- |
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225 // |
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226 TUint32 CNATBinding::InitialRequestId() const |
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227 { |
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228 return iInitialReqId; |
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229 } |
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230 |
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231 // ----------------------------------------------------------------------------- |
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232 // CNATBinding::NATBindingObserver |
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233 // ----------------------------------------------------------------------------- |
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234 // |
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235 MSIPNATBindingObserver& CNATBinding::NATBindingObserver() |
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236 { |
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237 return iBindingObserver; |
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238 } |
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239 |
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240 // ----------------------------------------------------------------------------- |
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241 // CNATBinding::AddressResolved |
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242 // ----------------------------------------------------------------------------- |
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243 // |
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244 TBool CNATBinding::AddressResolved() const |
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245 { |
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246 return iAddressResolved; |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CNATBinding::PublicAddr |
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251 // ----------------------------------------------------------------------------- |
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252 // |
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253 const TInetAddr& CNATBinding::PublicAddr() const |
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254 { |
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255 return iPublicAddr; |
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256 } |
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257 |
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258 // ----------------------------------------------------------------------------- |
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259 // CNATBinding::HandleDataL |
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260 // ----------------------------------------------------------------------------- |
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261 // |
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262 void CNATBinding::HandleDataL( |
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263 const TDesC8& aData, |
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264 const RSocket& aSocket, |
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265 TBool& aConsumed) |
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266 { |
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267 aConsumed = EFalse; |
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268 if (iBinding && |
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269 aSocket.SubSessionHandle() == iBinding->Socket().SubSessionHandle()) |
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270 { |
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271 // Set a dummy remote address as the data is guaranteed not to be a |
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272 // TURN indication and on return the address is useless to us. |
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273 TInetAddr addr(KAFUnspec); |
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274 iBinding->HandleDataL(aData,aConsumed,addr); |
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275 } |
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276 } |
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277 |
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278 // ----------------------------------------------------------------------------- |
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279 // CNATBinding::ContinueRefreshing |
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280 // ----------------------------------------------------------------------------- |
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281 // |
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282 void CNATBinding::ContinueRefreshing() |
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283 { |
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284 if (iRefresher) |
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285 { |
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286 iRefresher->ContinueRefreshing(); |
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287 } |
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288 } |
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289 |
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290 // ----------------------------------------------------------------------------- |
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291 // CNATBinding::NATBindingRefreshComplete |
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292 // From MNATBindingRefresherObserver |
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293 // ----------------------------------------------------------------------------- |
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294 // |
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295 void CNATBinding::NATBindingRefreshComplete(TInt aCompletionCode) |
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296 { |
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297 if (aCompletionCode != KErrNone) |
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298 { |
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299 iBindingObserver.FlowFailure(aCompletionCode); |
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300 } |
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301 else |
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302 { |
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303 ContinueRefreshing(); |
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304 } |
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305 } |
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306 |
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307 // ----------------------------------------------------------------------------- |
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308 // CNATBinding::Socket |
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309 // From MNATTraversalSocketUser |
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310 // ----------------------------------------------------------------------------- |
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311 // |
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312 const RSocket& CNATBinding::Socket() const |
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313 { |
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314 return iSTUNSocket; |
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315 } |
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316 |
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317 // ----------------------------------------------------------------------------- |
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318 // CNATBinding::SendingAllowed |
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319 // From MNATTraversalSocketUser |
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320 // ----------------------------------------------------------------------------- |
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321 // |
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322 void CNATBinding::SendingAllowed() |
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323 { |
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324 if (iBinding) |
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325 { |
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326 TRAPD(err, iBinding->SendRequestL()); |
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327 if (err) |
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328 { |
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329 SetBindingFailed(err); |
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330 } |
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331 else |
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332 { |
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333 iIsSending = ETrue; |
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334 } |
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335 } |
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336 } |
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337 |
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338 // ----------------------------------------------------------------------------- |
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339 // CNATBinding::IsSending |
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340 // From MNATTraversalSocketUser |
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341 // ----------------------------------------------------------------------------- |
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342 // |
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343 TBool CNATBinding::IsSending() const |
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344 { |
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345 return iIsSending; |
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346 } |
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347 |
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348 // ----------------------------------------------------------------------------- |
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349 // CNATBinding::CancelSending |
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350 // From MNATTraversalSocketUser |
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351 // ----------------------------------------------------------------------------- |
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352 // |
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353 void CNATBinding::CancelSending() |
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354 { |
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355 if (iBinding) |
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356 { |
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357 iBinding->CancelRequest(); |
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358 } |
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359 } |
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360 |
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361 // ----------------------------------------------------------------------------- |
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362 // CNATBinding::SendingCompleted |
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363 // ----------------------------------------------------------------------------- |
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364 // |
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365 void CNATBinding::SendingCompleted() |
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366 { |
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367 iIsSending = EFalse; |
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368 iSocketManager.SendingCompleted(*this); |
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369 } |