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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : CTransport.cpp |
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15 // Part of : ConnectionMgr |
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16 // Version : SIP/6.0 |
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17 // |
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18 |
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19 |
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20 |
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21 #include "MHandler.h" |
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22 #include "CTransport.h" |
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23 #include "MTransportOwner.h" |
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24 #include "CErrorHandler.h" |
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25 #include "MTransactionFinder.h" |
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26 #include "MServerTaFactory.h" |
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27 #include "sipmessageparser.h" |
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28 #include "MReceiverObserver.h" |
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29 #include "SipLogs.h" |
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30 #include "sipcontactheader.h" |
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31 #include "sipaddress.h" |
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32 #include "sipuri.h" |
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33 #include "siptoheader.h" |
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34 #include "sipfromheader.h" |
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35 #include "sipcallidheader.h" |
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36 #include "sipcseqheader.h" |
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37 #include "sipviaheader.h" |
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38 #include "sipheaderbase.h" |
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39 #include "sipmessageparser.h" |
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40 #include "siphostport.h" |
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41 #include "sipcontenttypeheader.h" |
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42 #include "sipmaxforwardsheader.h" |
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43 #include "CSIPServerResolver.h" |
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44 #include "utf.h" |
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45 #include "CommonConsts.h" |
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46 #include "sipstrings.h" |
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47 #include "sipstrconsts.h" |
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48 #include "uricontainer.h" |
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49 #include "NetworkInfo.h" |
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50 #include "COwnerSettingsList.h" |
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51 #include "TSIPTransportParams.h" |
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52 #include "MSigCompController.h" |
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53 #include "CSocketContainer.h" |
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54 #include "siperr.h" |
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55 #include <sipnatbindingobserver.h> |
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56 #include <sipnattraversalcontroller.h> |
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57 |
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58 |
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59 const TUint KBadRequest = 400; |
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60 const TUint KVersionError = 505; |
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61 |
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62 // ----------------------------------------------------------------------------- |
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63 // CTransport::CTransport |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 CTransport::CTransport( MTransactionFinder& aFinder, |
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67 MServerTaFactory& aTaFactory, |
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68 MTransportOwner& aTransportOwner, |
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69 CSIPServerResolver& aServerResolver, |
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70 MSigCompController& aSigCompHandler, |
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71 const TSIPTransportParams& aTransportParams, |
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72 CNetworkInfo& aNetworkInfo, |
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73 COwnerSettingsList& aSettingsList, |
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74 CSIPNATTraversalController& aNATTraversal ) : |
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75 iTransportParams( aTransportParams ), |
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76 iSettingsList( aSettingsList ), |
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77 iNATTraversal( aNATTraversal ), |
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78 iTaFinder( &aFinder ), |
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79 iTaFactory( &aTaFactory ), |
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80 iSigCompHandler( &aSigCompHandler ), |
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81 iNetworkInfo( aNetworkInfo ) |
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82 { |
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83 iServerResolver = &aServerResolver; |
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84 iTransportOwner = &aTransportOwner; |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CTransport::~CTransport |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 CTransport::~CTransport() |
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92 { |
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93 iIDArray.Reset(); |
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94 iIDArray.Close(); |
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95 iBindingObservers.Reset(); |
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96 iBindingObservers.Close(); |
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97 } |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // CTransport::RecvL |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 void CTransport::RecvL( HBufC8* aData, |
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104 const TInetAddr& aRemoteAddr, |
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105 TBool aCompressed ) |
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106 |
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107 { |
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108 __ASSERT_DEBUG( aData, User::Panic( _L("Nullpointer"), KErrGeneral ) ); |
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109 |
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110 CleanupStack::PushL( aData ); |
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111 CSIPMessageParser* sipparser = CSIPMessageParser::NewLC(); |
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112 HBufC8* dataCopy = aData->Des().AllocL(); |
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113 CSIPMessage* message( NULL ); |
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114 TInt parserError = sipparser->FromText( aData, &message ); |
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115 CleanupStack::PopAndDestroy( sipparser ); |
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116 CleanupStack::Pop(aData); |
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117 CleanupStack::PushL(dataCopy); |
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118 |
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119 if ( !message && parserError ) |
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120 { |
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121 // Show data to NATTraversalController if message couldn't be parsed |
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122 // and it was received via UDP (might be e.g. a STUN binding response). |
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123 TBool permissionToUse( EFalse ); |
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124 RSocket* socket = AcquireUdpSocket( 0, aRemoteAddr, permissionToUse ); |
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125 if ( socket ) |
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126 { |
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127 __SIP_LOG( "Received unrecognized data, passing to NATTraversal" ) |
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128 |
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129 // NOTE: NATTraversal does not use the socket for sending |
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130 // in DataReceived phase. |
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131 TBool handled( EFalse ); |
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132 iNATTraversal.DataReceivedL( *dataCopy, *socket, handled ); |
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133 |
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134 // Release immediately |
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135 UdpSocketReleased( 0, *socket ); |
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136 } |
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137 CleanupStack::PopAndDestroy( dataCopy ); |
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138 } |
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139 else |
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140 { |
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141 CleanupStack::PopAndDestroy( dataCopy ); |
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142 CleanupStack::PushL( message ); |
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143 RecvL( message, aRemoteAddr, parserError, aCompressed ); |
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144 CleanupStack::Pop( message ); |
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145 } |
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146 } |
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147 |
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148 // ----------------------------------------------------------------------------- |
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149 // CTransport::RecvL |
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150 // ----------------------------------------------------------------------------- |
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151 // |
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152 void CTransport::RecvL( CSIPMessage* aMessage, |
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153 const TInetAddr& aRemoteAddr, |
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154 TInt aParserError, |
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155 TBool aCompressed ) |
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156 { |
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157 HandleSigCompAllowDenyL( aRemoteAddr, aParserError, aCompressed ); |
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158 |
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159 if ( aMessage ) |
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160 { |
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161 if ( aParserError == KErrNone && AllMandatoryHeaders( *aMessage ) ) |
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162 { |
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163 __SIP_ADDR_LOG( "Incoming message from", aRemoteAddr ) |
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164 |
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165 if ( aMessage->IsRequest() ) |
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166 { |
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167 if ( HandleServerRequestL( aMessage, aRemoteAddr ) == KErrNone ) |
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168 { |
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169 RouteL( aMessage, aRemoteAddr ); |
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170 return; |
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171 } |
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172 } |
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173 else |
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174 { |
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175 if ( HandleServerResponseL( aMessage, aRemoteAddr ) ) |
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176 { |
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177 RouteL( aMessage, aRemoteAddr ); |
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178 return; |
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179 } |
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180 } |
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181 } |
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182 else |
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183 { |
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184 if ( aMessage->IsRequest() && !IsAck( *aMessage ) ) |
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185 { |
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186 SetReceivedIfNeededL( TopViaHeader( aMessage ), aRemoteAddr ); |
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187 SendErrorResponseL( KBadRequest, |
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188 SipStrConsts::EPhraseBadRequest, |
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189 *aMessage, |
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190 aRemoteAddr ); |
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191 __SIP_LOG( "Invalid SIP Request" ) |
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192 } |
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193 else |
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194 { |
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195 __SIP_LOG( "Invalid SIP Response or ACK" ) |
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196 } |
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197 |
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198 __SIP_DES8_LOG( "Invalid data: ", aMessage->Content() ) |
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199 __SIP_INT_LOG1( "Parser error", aParserError ) |
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200 } |
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201 } |
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202 else |
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203 { |
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204 __SIP_INT_LOG1( "Parser error", aParserError ) |
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205 } |
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206 delete aMessage; |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CTransport::RouteL |
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211 // ----------------------------------------------------------------------------- |
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212 // |
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213 void CTransport::RouteL( CSIPMessage* aMessage, const TInetAddr& aRemoteAddr ) |
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214 { |
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215 TInt leaveValue = KErrNone; |
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216 |
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217 MReceiverObserver* receiver = iTaFinder->Search( *aMessage ); |
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218 if ( receiver ) |
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219 { |
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220 const TSIPTransportParams& tpParams = receiver->TransportParams(); |
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221 |
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222 // Discard the message if receiving is not allowed |
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223 if ( !iSettingsList.IsReceivingAllowed( tpParams, |
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224 aRemoteAddr, |
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225 Protocol(), |
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226 SourcePort() ) ) |
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227 { |
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228 delete aMessage; |
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229 return; |
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230 } |
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231 |
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232 if ( aMessage->IsRequest() ) |
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233 { |
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234 TRAP( leaveValue, |
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235 receiver->ReceiveL( static_cast<CSIPRequest*>( aMessage ) ) ); |
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236 } |
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237 else |
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238 { |
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239 HandleResponseNATTraversalL( |
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240 static_cast< CSIPResponse& >( *aMessage ), |
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241 aRemoteAddr, |
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242 const_cast<TSIPTransportParams&>( |
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243 tpParams ).NATBindingObserver() ); |
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244 |
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245 TRAP( leaveValue, |
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246 receiver->ReceiveL( static_cast<CSIPResponse*>( aMessage ) ) ); |
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247 } |
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248 if ( leaveValue != KErrNone ) |
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249 { |
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250 delete aMessage; |
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251 receiver->LeaveOccurred( leaveValue ); |
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252 } |
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253 } |
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254 else |
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255 { |
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256 if ( aMessage->IsRequest() ) |
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257 { |
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258 TTransactionId id; |
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259 // OwnerId cannot be known at this stage, default id will be used |
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260 TSIPTransportParams tpParams( KDefaultOwnerId, |
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261 iTransportOwner->IapId() ); |
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262 // Find out whether some existing SAs should be used also for |
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263 // this new transaction |
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264 TUint32 tpId = iSettingsList.FindTransportId( aRemoteAddr ); |
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265 |
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266 tpParams.SetTransportId( tpId ); |
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267 |
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268 receiver = iTaFactory->NewTransactionL( |
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269 static_cast<CSIPRequest&>( *aMessage ), |
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270 tpParams, |
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271 id ); |
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272 if ( receiver ) |
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273 { |
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274 if ( IsConnectedTransport() ) |
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275 { |
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276 TResponseRoute route( id, aRemoteAddr ); |
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277 iIDArray.Append( route ); |
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278 } |
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279 TRAP( leaveValue, |
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280 receiver->ReceiveL( static_cast<CSIPRequest*>( aMessage ) ) ); |
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281 if ( leaveValue != KErrNone ) |
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282 { |
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283 delete aMessage; |
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284 receiver->LeaveOccurred( leaveValue ); |
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285 } |
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286 } |
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287 else |
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288 { |
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289 delete aMessage; |
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290 } |
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291 } |
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292 else |
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293 { |
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294 delete aMessage; |
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295 } |
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296 } |
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297 } |
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298 |
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299 // ----------------------------------------------------------------------------- |
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300 // CTransport::Send |
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301 // ----------------------------------------------------------------------------- |
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302 // |
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303 void CTransport::Send( const TSIPTransportParams& aParams, |
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304 CSIPResponse& aResponse, |
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305 const TInetAddr& aAddr, |
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306 TRequestStatus &aStatus ) |
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307 { |
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308 TRAPD( leaveValue, |
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309 SendToNetL( aParams, aAddr, aResponse, EFalse, Protocol(), aStatus ) ); |
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310 if ( leaveValue != KErrNone ) |
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311 { |
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312 TRequestStatus* stat = &aStatus; |
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313 User::RequestComplete( stat, leaveValue ); |
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314 } |
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315 } |
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316 |
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317 // ----------------------------------------------------------------------------- |
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318 // CTransport::Send |
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319 // ----------------------------------------------------------------------------- |
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320 // |
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321 void CTransport::Send( const TSIPTransportParams& aParams, |
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322 CSIPResponse& aResponse, |
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323 TTransactionId aId, |
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324 TRequestStatus &aStatus ) |
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325 { |
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326 TInt leaveValue = KErrNone; |
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327 TInetAddr remoteAddr; |
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328 |
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329 if ( Protocol() == KProtocolInetUdp ) |
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330 { |
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331 TRAP( leaveValue, |
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332 HandleClientResponseL( aParams, &aResponse, remoteAddr ); |
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333 SendToNetL( aParams, remoteAddr, aId, aResponse, aStatus ) ); |
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334 if ( leaveValue != KErrNone ) |
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335 { |
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336 TRequestStatus* stat = &aStatus; |
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337 User::RequestComplete( stat, leaveValue ); |
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338 } |
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339 } |
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340 else |
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341 { |
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342 TInt pos; |
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343 pos = iIDArray.Count(); |
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344 while ( pos > 0 ) |
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345 { |
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346 if ( iIDArray[ pos - 1 ].TAId() == aId ) |
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347 { |
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348 TRAP( leaveValue, |
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349 UpdateContactHeadersL( aParams, &aResponse, ETrue ); |
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350 SendToNetL( aParams, |
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351 iIDArray[ pos - 1 ].Address(), |
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352 aResponse, |
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353 EFalse, |
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354 0, |
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355 aStatus ) ); |
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356 if ( leaveValue != KErrNone ) |
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357 { |
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358 TRequestStatus* stat = &aStatus; |
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359 User::RequestComplete( stat, leaveValue ); |
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360 } |
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361 return; |
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362 } |
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363 pos--; |
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364 } |
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365 TRAP( leaveValue, |
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366 HandleClientResponseL( aParams, &aResponse, remoteAddr ); |
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367 SendToNetL( aParams, remoteAddr, aResponse, EFalse, Protocol(), aStatus ) ); |
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368 if ( leaveValue != KErrNone ) |
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369 { |
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370 TRequestStatus* stat = &aStatus; |
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371 User::RequestComplete( stat, leaveValue ); |
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372 } |
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373 } |
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374 } |
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375 |
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376 // ----------------------------------------------------------------------------- |
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377 // CTransport::Send |
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378 // ----------------------------------------------------------------------------- |
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379 // |
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380 void CTransport::Send( const TSIPTransportParams& aParams, |
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381 CSIPRequest& aRequest, |
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382 TBool aForceUDP, |
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383 const TInetAddr& aAddr, |
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384 TUint aOrigTransport, |
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385 TRequestStatus &aStatus, |
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386 TBool aPublicAddrResolved ) |
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387 { |
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388 TInt leaveValue = KErrNone; |
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389 TRAP( leaveValue, |
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390 HandleClientRequestL( aParams, aRequest, aPublicAddrResolved ); |
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391 UpdateListenersL( aParams, &aRequest ); |
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392 SendToNetL( aParams, aAddr, aRequest, aForceUDP, aOrigTransport, aStatus ) ); |
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393 |
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394 if ( leaveValue != KErrNone ) |
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395 { |
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396 TRequestStatus* stat = &aStatus; |
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397 User::RequestComplete( stat, leaveValue ); |
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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 // CTransport::HandleL |
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403 // ----------------------------------------------------------------------------- |
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404 // |
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405 TBool CTransport::HandleL( |
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406 const TSIPTransportParams& aParams, |
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407 CSIPMessage* aMessage, |
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408 TTransactionId aId, |
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409 TBool aIsStrict ) |
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410 { |
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411 if ( !aMessage ) |
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412 { |
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413 return EFalse; |
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414 } |
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415 TInt pos = iIDArray.Count(); |
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416 while ( pos > 0 ) |
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417 { |
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418 if ( iIDArray[ pos - 1 ].TAId() == aId ) |
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419 { |
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420 return ETrue; |
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421 } |
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422 pos--; |
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423 } |
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424 |
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425 if ( aIsStrict ) |
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426 { |
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427 return EFalse; |
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428 } |
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429 |
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430 TInetAddr remoteAddr; |
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431 HandleClientResponseL( aParams, aMessage, remoteAddr ); |
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432 return HandleL( aParams, aMessage, remoteAddr, 0, ETrue ); |
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433 } |
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434 |
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435 // ----------------------------------------------------------------------------- |
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436 // CTransport::HandleL |
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437 // ----------------------------------------------------------------------------- |
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438 // |
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439 TBool CTransport::HandleL( |
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440 const TSIPTransportParams& aParams, |
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441 CSIPMessage* aMessage, |
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442 const TInetAddr& aAddr, |
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443 TUint aLocalPort, |
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444 TBool aIsStrict ) |
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445 { |
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446 if ( !aMessage ) |
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447 { |
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448 return EFalse; |
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449 } |
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450 CSIPViaHeader* viaHeader = TopViaHeader( aMessage ); |
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451 if ( viaHeader ) |
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452 { |
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453 if ( HandleMessage( aParams, |
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454 viaHeader->Transport(), |
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455 aAddr, |
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456 aLocalPort, |
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457 aIsStrict ) ) |
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458 { |
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459 return ETrue; |
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460 } |
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461 } |
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462 return EFalse; |
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463 } |
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464 |
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465 // ----------------------------------------------------------------------------- |
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466 // CTransport::Handle |
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467 // ----------------------------------------------------------------------------- |
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468 // |
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469 TBool CTransport::Handle( TUint32 aTransportId ) |
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470 { |
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471 return ( IsReservedTransport() && |
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472 iTransportParams.TransportId() == aTransportId ); |
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473 } |
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474 |
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475 // ----------------------------------------------------------------------------- |
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476 // CTransport::Match |
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477 // ----------------------------------------------------------------------------- |
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478 // |
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479 TBool CTransport::Match( const TSIPTransportParams& aParams ) |
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480 { |
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481 return ( aParams.TransportId() == 0 || Handle( aParams.TransportId() ) ); |
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482 } |
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483 |
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484 // ----------------------------------------------------------------------------- |
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485 // CTransport::HasRemoteHost |
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486 // ----------------------------------------------------------------------------- |
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487 // |
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488 TBool CTransport::HasRemoteHost( |
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489 const TSIPTransportParams& aParams, |
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490 const TInetAddr& aRemoteHost, |
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491 RStringF aProtocol ) |
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492 { |
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493 return HandleMessage( aParams, aProtocol, aRemoteHost, 0, ETrue ); |
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494 } |
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495 |
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496 // ----------------------------------------------------------------------------- |
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497 // CTransport::Remove |
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498 // ----------------------------------------------------------------------------- |
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499 // |
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500 TBool CTransport::Remove( const TSIPTransportParams& aParams ) |
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501 { |
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502 // Default transports are not removed when owner closes its connection. |
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503 // Also removal of persistent and reserved transport are handled separately. |
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504 return ( !IsDefault() && |
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505 iTransportParams.OwnerId() == aParams.OwnerId() && |
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506 !IsPersistent() && |
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507 !IsReservedTransport() ); |
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508 } |
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509 |
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510 // ----------------------------------------------------------------------------- |
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511 // CTransport::Remove |
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512 // ----------------------------------------------------------------------------- |
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513 // |
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514 TBool CTransport::Remove( MSIPNATBindingObserver& aSIPNATBindingObserver ) |
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515 { |
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516 return ( !IsDefault() && RemoveBindingObserver( aSIPNATBindingObserver ) ); |
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517 } |
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518 |
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519 // ----------------------------------------------------------------------------- |
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520 // CTransport::Shutdown |
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521 // ----------------------------------------------------------------------------- |
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522 // |
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523 TBool CTransport::Shutdown( |
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524 TUint32 /*aTransportId*/, |
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525 MSIPTransportRemovalObserver* /*aRemovalObserver*/ ) |
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526 { |
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527 return EFalse; |
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528 } |
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529 |
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530 // ----------------------------------------------------------------------------- |
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531 // CTransport::IsReservedTransport |
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532 // ----------------------------------------------------------------------------- |
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533 // |
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534 TBool CTransport::IsReservedTransport() const |
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535 { |
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536 return ( iTransportParams.TransportId() > 0 ); |
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537 } |
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538 |
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539 // ----------------------------------------------------------------------------- |
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540 // CTransport::AcquireUdpSocketL |
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541 // ----------------------------------------------------------------------------- |
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542 // |
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543 RSocket* CTransport::AcquireUdpSocket( |
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544 MSocketUsagePermissionObserver* /*aObserver*/, |
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545 const TInetAddr& /*aRemoteAddr*/, |
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546 TBool& /*aPermissionToUse*/ ) |
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547 { |
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548 return 0; |
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549 } |
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550 |
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551 // ----------------------------------------------------------------------------- |
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552 // CTransport::UdpSocketReleased |
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553 // ----------------------------------------------------------------------------- |
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554 // |
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555 void CTransport::UdpSocketReleased( |
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556 MSocketUsagePermissionObserver* /*aObserver*/, |
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557 RSocket& /*aSocket*/ ) |
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558 { |
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559 } |
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560 |
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561 // ----------------------------------------------------------------------------- |
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562 // CTransport::PersistentRemoteAddr |
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563 // ----------------------------------------------------------------------------- |
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564 // |
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565 TInetAddr* CTransport::PersistentRemoteAddr( |
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566 MSIPNATBindingObserver* /*aBindingObserver*/ ) |
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567 { |
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568 return 0; |
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569 } |
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570 |
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571 // ----------------------------------------------------------------------------- |
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572 // CTransport::HandleClientRequestL |
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573 // ----------------------------------------------------------------------------- |
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574 // |
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575 void CTransport::HandleClientRequestL( |
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576 const TSIPTransportParams& aParams, |
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577 CSIPRequest& aRequest, |
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578 TBool aPublicAddrResolved ) |
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579 { |
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580 __ASSERT_DEBUG( aRequest.HasHeader( |
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581 SIPStrings::StringF( SipStrConsts::EMaxForwardsHeader ) ), |
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582 User::Panic( _L( "no MaxForwards header" ), KErrArgument ) ); |
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583 |
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584 __ASSERT_DEBUG( AllMandatoryHeaders( aRequest ), |
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585 User::Panic( _L( "Mandatory header is missing" ), KErrArgument ) ); |
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586 |
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587 TUint32 transportId = aParams.TransportId(); |
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588 |
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589 CSIPViaHeader* viaHeader = TopViaHeader( &aRequest ); |
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590 if ( viaHeader ) |
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591 { |
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592 // Currently both (aPublicAddrResolved==ETrue) and (receivePort>0) |
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593 // never happen at the same time. |
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594 if ( !aPublicAddrResolved ) |
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595 { |
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596 TUint receivePort = |
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597 iSettingsList.SavedLocalReceivePort( transportId ); |
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598 // If host is already filled (e.g. ConnectionMgr put public address |
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599 // to Via, sends request, gets 401, TU sends an updated request, Via |
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600 // has the public addr) don't put the private address to Via. |
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601 // Even if host is already set, set port if receivePort exists. |
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602 if ( viaHeader->SentByHostPort().Host().CompareF( |
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603 SIPStrings::StringF( SipStrConsts::ELocalHost ).DesC() ) == 0 ) |
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604 { |
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605 HBufC8* localaddress = LocalAddressL(); |
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606 CleanupStack::PushL( localaddress ); |
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607 viaHeader->SentByHostPort().SetHostL( *localaddress ); |
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608 CleanupStack::PopAndDestroy( localaddress ); |
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609 |
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610 // Sent-by is now set for the first time, must set the port too |
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611 if ( receivePort == 0 ) |
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612 { |
|
613 receivePort = KDefaultSipPort; |
|
614 } |
|
615 } |
|
616 if ( receivePort ) |
|
617 { |
|
618 viaHeader->SentByHostPort().SetPort( receivePort ); |
|
619 } |
|
620 } |
|
621 |
|
622 // Add empty rport param |
|
623 RStringF rport = SIPStrings::Pool().OpenFStringL( KParamrport ); |
|
624 CleanupClosePushL( rport ); |
|
625 viaHeader->SetParamL( rport ); |
|
626 CleanupStack::PopAndDestroy(); // rport |
|
627 } |
|
628 |
|
629 UpdateContactHeadersL( aParams, &aRequest, !aPublicAddrResolved ); |
|
630 |
|
631 // Check if request is sent integrity protected |
|
632 // (i.e. IPSec SA exists, ignore TLS) |
|
633 iNetworkInfo.HandleRequestL( aRequest, |
|
634 iSettingsList.HasSavedTransportInfo( transportId ) && |
|
635 !iSettingsList.HasSavedTLSTransportInfo( transportId ) ); |
|
636 } |
|
637 |
|
638 // ----------------------------------------------------------------------------- |
|
639 // CTransport::GetAddrFromResponseL |
|
640 // ----------------------------------------------------------------------------- |
|
641 // |
|
642 void CTransport::GetAddrFromResponseL( |
|
643 const TSIPTransportParams& aParams, |
|
644 CSIPMessage& aMessage, |
|
645 TInetAddr& aAddr ) |
|
646 { |
|
647 HandleClientResponseL( aParams, &aMessage, aAddr ); |
|
648 } |
|
649 |
|
650 // ----------------------------------------------------------------------------- |
|
651 // CTransport::HandleClientResponseL |
|
652 // ----------------------------------------------------------------------------- |
|
653 // |
|
654 void CTransport::HandleClientResponseL( |
|
655 const TSIPTransportParams& aParams, |
|
656 CSIPMessage* aMessage, |
|
657 TInetAddr& aAddr ) |
|
658 { |
|
659 CSIPViaHeader* viaHeader = TopViaHeader( aMessage ); |
|
660 if ( viaHeader ) |
|
661 { |
|
662 TBool portSet( EFalse ); |
|
663 |
|
664 if ( viaHeader->HasParam( SIPStrings::StringF( SipStrConsts::EMaddr ) ) ) |
|
665 { |
|
666 ConvertToInetAddrL( |
|
667 viaHeader->ParamValue( |
|
668 SIPStrings::StringF( SipStrConsts::EMaddr ) ).DesC(), aAddr ); |
|
669 |
|
670 if ( !viaHeader->HasParam( |
|
671 SIPStrings::StringF( SipStrConsts::ETtl ) ) ) |
|
672 { |
|
673 viaHeader->SetTtlParamL(1); |
|
674 } |
|
675 } |
|
676 else if ( viaHeader->HasParam( |
|
677 SIPStrings::StringF( SipStrConsts::EReceived ) ) ) |
|
678 { |
|
679 ConvertToInetAddrL( |
|
680 viaHeader->ParamValue( |
|
681 SIPStrings::StringF( SipStrConsts::EReceived ) ).DesC(), |
|
682 aAddr ); |
|
683 |
|
684 portSet = HandleClientResponseRPortL( *viaHeader, aAddr ); |
|
685 } |
|
686 else |
|
687 { |
|
688 ConvertToInetAddrL( viaHeader->SentByHostPort().Host(), |
|
689 aAddr ); |
|
690 } |
|
691 |
|
692 // Port could be already set if received and rport values existed. |
|
693 if ( !portSet ) |
|
694 { |
|
695 if ( viaHeader->SentByHostPort().HasPort() ) |
|
696 { |
|
697 aAddr.SetPort( viaHeader->SentByHostPort().Port() ); |
|
698 } |
|
699 else |
|
700 { |
|
701 aAddr.SetPort( KDefaultSipPort ); |
|
702 } |
|
703 } |
|
704 } |
|
705 |
|
706 UpdateContactHeadersL( aParams, aMessage, ETrue ); |
|
707 } |
|
708 |
|
709 // ----------------------------------------------------------------------------- |
|
710 // CTransport::HandleServerResponseL |
|
711 // ----------------------------------------------------------------------------- |
|
712 // |
|
713 TBool CTransport::HandleServerResponseL( CSIPMessage* aMessage, |
|
714 const TInetAddr& aAddr ) |
|
715 { |
|
716 __ASSERT_DEBUG( aMessage, User::Panic( _L("Nullpointer"), KErrGeneral ) ); |
|
717 |
|
718 if ( !CorrectProtocolInVia( *aMessage ) ) |
|
719 { |
|
720 return EFalse; |
|
721 } |
|
722 |
|
723 if ( !OnlyOneViaHeader( *aMessage ) ) |
|
724 { |
|
725 return EFalse; |
|
726 } |
|
727 if ( Protocol() == KProtocolInetUdp ) |
|
728 { |
|
729 if (CheckAndUpdateContentLengthL( aMessage, aAddr ) != KErrNone ) |
|
730 { |
|
731 return EFalse; |
|
732 } |
|
733 } |
|
734 |
|
735 if ( IsConnectedTransport() && |
|
736 !aMessage->HasAnnouncedContentLength() ) |
|
737 { |
|
738 return EFalse; |
|
739 } |
|
740 |
|
741 if ( !SupportedSIPVersion( *aMessage ) ) |
|
742 { |
|
743 return EFalse; |
|
744 } |
|
745 |
|
746 return ETrue; |
|
747 } |
|
748 |
|
749 // ----------------------------------------------------------------------------- |
|
750 // CTransport::HandleServerRequestL |
|
751 // ----------------------------------------------------------------------------- |
|
752 // |
|
753 TInt CTransport::HandleServerRequestL( CSIPMessage* aMessage, |
|
754 const TInetAddr& aAddr ) |
|
755 { |
|
756 __ASSERT_ALWAYS( aMessage, User::Leave( KErrArgument ) ); |
|
757 |
|
758 SetReceivedIfNeededL( TopViaHeader( aMessage ), aAddr ); |
|
759 |
|
760 if ( !SupportedSIPVersion( *aMessage ) || |
|
761 !CorrectProtocolInVia( *aMessage ) ) |
|
762 { |
|
763 SendErrorResponseL( KVersionError, |
|
764 SipStrConsts::EPhraseVersionNotSupported, |
|
765 *aMessage, |
|
766 aAddr ); |
|
767 return KErrArgument; |
|
768 } |
|
769 |
|
770 if ( ( IsConnectedTransport() && |
|
771 !aMessage->HasAnnouncedContentLength() ) || |
|
772 !ContentTypeOk( *aMessage ) || |
|
773 !MethodIsSameInCSecAndReqLine( static_cast<CSIPRequest&>( *aMessage ) ) ) |
|
774 { |
|
775 SendErrorResponseL( KBadRequest, |
|
776 SipStrConsts::EPhraseBadRequest, |
|
777 *aMessage, |
|
778 aAddr ); |
|
779 return KErrArgument; |
|
780 } |
|
781 |
|
782 if ( Protocol() == KProtocolInetUdp ) |
|
783 { |
|
784 if ( CheckAndUpdateContentLengthL( aMessage, aAddr ) != KErrNone ) |
|
785 { |
|
786 return KErrGeneral; |
|
787 } |
|
788 } |
|
789 |
|
790 CSIPViaHeader* viaHeader = TopViaHeader( aMessage ); |
|
791 if ( viaHeader ) |
|
792 { |
|
793 TBool isPortPresent = viaHeader->SentByHostPort().HasPort(); |
|
794 if (isPortPresent) |
|
795 { |
|
796 TUint sentByPort = viaHeader->SentByHostPort().Port(); |
|
797 if ((sentByPort > KMaxPortValue) || (sentByPort < KMinPortValue)) |
|
798 { |
|
799 __SIP_LOG( "Topmost Via-header has invalid port value, dropping request" ) |
|
800 return KErrArgument; |
|
801 } |
|
802 } |
|
803 } |
|
804 |
|
805 return KErrNone; |
|
806 } |
|
807 |
|
808 // ----------------------------------------------------------------------------- |
|
809 // CTransport::AllMandatoryHeaders |
|
810 // ----------------------------------------------------------------------------- |
|
811 // |
|
812 TBool CTransport::AllMandatoryHeaders( CSIPMessage& aMessage ) |
|
813 { |
|
814 return aMessage.HasHeader( SIPStrings::StringF( SipStrConsts::EViaHeader ) ) |
|
815 && |
|
816 aMessage.HasHeader( SIPStrings::StringF( SipStrConsts::EToHeader ) ) |
|
817 && |
|
818 aMessage.HasHeader( SIPStrings::StringF( SipStrConsts::EFromHeader ) ) |
|
819 && |
|
820 aMessage.HasHeader( SIPStrings::StringF( SipStrConsts::ECallIDHeader ) ) |
|
821 && |
|
822 aMessage.HasHeader( SIPStrings::StringF( SipStrConsts::ECSeqHeader ) ); |
|
823 } |
|
824 |
|
825 // ----------------------------------------------------------------------------- |
|
826 // CTransport::SupportedSIPVersion |
|
827 // ----------------------------------------------------------------------------- |
|
828 // |
|
829 TBool CTransport::SupportedSIPVersion( CSIPMessage& aMessage ) |
|
830 { |
|
831 TSglQueIter<CSIPHeaderBase> iter = |
|
832 aMessage.Headers( SIPStrings::StringF( SipStrConsts::EViaHeader ) ); |
|
833 CSIPHeaderBase* header = 0; |
|
834 iter.SetToFirst(); |
|
835 |
|
836 while ( ( header = iter++ ) != 0 ) |
|
837 { |
|
838 CSIPViaHeader* via = static_cast<CSIPViaHeader*>( header ); |
|
839 if ( !( via->SentProtocolVersion() == |
|
840 SIPStrings::StringF( SipStrConsts::EDefaultVersionNumber ) ) ) |
|
841 { |
|
842 return EFalse; |
|
843 } |
|
844 } |
|
845 |
|
846 return ( aMessage.SIPVersion() == |
|
847 SIPStrings::StringF( SipStrConsts::EDefaultProtocolVersion ) ); |
|
848 } |
|
849 |
|
850 // ----------------------------------------------------------------------------- |
|
851 // CTransport::CorrectProtocolInVia |
|
852 // ----------------------------------------------------------------------------- |
|
853 // |
|
854 TBool CTransport::CorrectProtocolInVia( CSIPMessage& aMessage ) |
|
855 { |
|
856 TSglQueIter<CSIPHeaderBase> iter = |
|
857 aMessage.Headers( SIPStrings::StringF( SipStrConsts::EViaHeader ) ); |
|
858 CSIPHeaderBase* header = 0; |
|
859 iter.SetToFirst(); |
|
860 |
|
861 while ( ( header = iter++ ) != 0 ) |
|
862 { |
|
863 CSIPViaHeader* via = static_cast<CSIPViaHeader*>( header ); |
|
864 if ( via->SentProtocolName() != |
|
865 SIPStrings::StringF( SipStrConsts::ESIP ) ) |
|
866 { |
|
867 return EFalse; |
|
868 } |
|
869 } |
|
870 |
|
871 return ETrue; |
|
872 } |
|
873 |
|
874 // ----------------------------------------------------------------------------- |
|
875 // CTransport::ContentTypeOk |
|
876 // ----------------------------------------------------------------------------- |
|
877 // |
|
878 TBool CTransport::ContentTypeOk( CSIPMessage& aMessage ) |
|
879 { |
|
880 if ( aMessage.Content().Length() > 0 ) |
|
881 { |
|
882 if ( !aMessage.HasHeader( |
|
883 SIPStrings::StringF( SipStrConsts::EContentTypeHeader ) ) ) |
|
884 { |
|
885 return EFalse; |
|
886 } |
|
887 } |
|
888 return ETrue; |
|
889 } |
|
890 |
|
891 // ----------------------------------------------------------------------------- |
|
892 // CTransport::SetReceivedIfNeededL |
|
893 // aAddr has to be passed by value |
|
894 // ----------------------------------------------------------------------------- |
|
895 // |
|
896 void CTransport::SetReceivedIfNeededL( CSIPViaHeader* aViaHeader, |
|
897 TInetAddr aAddr ) |
|
898 { |
|
899 if ( aViaHeader ) |
|
900 { |
|
901 if ( aAddr.IsV4Mapped() ) |
|
902 { |
|
903 aAddr.ConvertToV4(); |
|
904 } |
|
905 aAddr.SetScope( 0 ); |
|
906 |
|
907 const TInt KMaxAddrLen = 64; |
|
908 TBuf<KMaxAddrLen> address; |
|
909 aAddr.Output( address ); |
|
910 TBuf8<KMaxAddrLen> received; |
|
911 CnvUtfConverter::ConvertFromUnicodeToUtf8( received, address ); |
|
912 |
|
913 RStringF rport = SIPStrings::Pool().OpenFStringL( KParamrport ); |
|
914 CleanupClosePushL( rport ); |
|
915 |
|
916 // If rport param exists but value has not been set, |
|
917 // set it to be the source port |
|
918 TBool rportSet( EFalse ); |
|
919 if ( aViaHeader->HasParam( rport ) && !HasValue( *aViaHeader, rport ) ) |
|
920 { |
|
921 const TInt KMaxTUintAsDesLen = 10; |
|
922 TBuf8<KMaxTUintAsDesLen> sourcePortDes; |
|
923 sourcePortDes.AppendNum( static_cast<TInt64>( aAddr.Port() ) ); |
|
924 |
|
925 RStringF rportVal = SIPStrings::Pool().OpenFStringL( sourcePortDes ); |
|
926 CleanupClosePushL( rportVal ); |
|
927 aViaHeader->SetParamL( rport, rportVal ); |
|
928 CleanupStack::PopAndDestroy(); // rportVal |
|
929 rportSet = ETrue; |
|
930 } |
|
931 |
|
932 CleanupStack::PopAndDestroy(); // rport |
|
933 |
|
934 // Set received param even if the address is same as in sent-by if |
|
935 // rport value was set |
|
936 if ( aViaHeader->SentByHostPort().Host().CompareF( received ) != 0 || |
|
937 rportSet ) |
|
938 { |
|
939 RStringF recv = SIPStrings::Pool().OpenFStringL( received ); |
|
940 CleanupClosePushL( recv ); |
|
941 aViaHeader->SetParamL( |
|
942 SIPStrings::StringF(SipStrConsts::EReceived), recv ); |
|
943 CleanupStack::PopAndDestroy(); //recv |
|
944 } |
|
945 } |
|
946 } |
|
947 |
|
948 // ----------------------------------------------------------------------------- |
|
949 // CTransport::CheckAndUpdateContentLengthL |
|
950 // ----------------------------------------------------------------------------- |
|
951 // |
|
952 TInt CTransport::CheckAndUpdateContentLengthL( CSIPMessage* aMessage, |
|
953 const TInetAddr& aAddr ) |
|
954 { |
|
955 if ( aMessage->HasAnnouncedContentLength() ) |
|
956 { |
|
957 if ( static_cast<TUint>( aMessage->Content().Length() ) == |
|
958 aMessage->AnnouncedContentLength() ) |
|
959 { |
|
960 return KErrNone; |
|
961 } |
|
962 |
|
963 if ( static_cast<TUint>( aMessage->Content().Length() ) > |
|
964 aMessage->AnnouncedContentLength() ) |
|
965 { |
|
966 HBufC8* content = aMessage->Content().AllocL(); |
|
967 content->Des().Delete( aMessage->AnnouncedContentLength(), |
|
968 aMessage->Content().Length() - |
|
969 aMessage->AnnouncedContentLength() ); |
|
970 |
|
971 aMessage->SetContent( content ); |
|
972 return KErrNone; |
|
973 } |
|
974 |
|
975 if ( aMessage->IsRequest() ) |
|
976 { |
|
977 SendErrorResponseL( KBadRequest, |
|
978 SipStrConsts::EPhraseBadRequest, |
|
979 *aMessage, |
|
980 aAddr ); |
|
981 } |
|
982 return KErrGeneral; |
|
983 } |
|
984 else |
|
985 { |
|
986 return KErrNone; |
|
987 } |
|
988 } |
|
989 |
|
990 // ----------------------------------------------------------------------------- |
|
991 // CTransport::TopViaHeader |
|
992 // ----------------------------------------------------------------------------- |
|
993 // |
|
994 CSIPViaHeader* CTransport::TopViaHeader( CSIPMessage* aMessage ) |
|
995 { |
|
996 if ( aMessage->HasHeader( SIPStrings::StringF(SipStrConsts::EViaHeader) ) ) |
|
997 { |
|
998 TSglQueIter<CSIPHeaderBase> iter = |
|
999 aMessage->Headers( SIPStrings::StringF(SipStrConsts::EViaHeader) ); |
|
1000 CSIPHeaderBase* header = iter; |
|
1001 return static_cast<CSIPViaHeader*>( header ); |
|
1002 } |
|
1003 |
|
1004 return 0; |
|
1005 } |
|
1006 |
|
1007 // ----------------------------------------------------------------------------- |
|
1008 // CTransport::UpdateListenersL |
|
1009 // ----------------------------------------------------------------------------- |
|
1010 // |
|
1011 void CTransport::UpdateListenersL( |
|
1012 const TSIPTransportParams& aParams, |
|
1013 CSIPMessage* aMessage ) |
|
1014 { |
|
1015 if ( aMessage->IsRequest() ) |
|
1016 { |
|
1017 if ( static_cast<CSIPRequest*>(aMessage)->Method() != |
|
1018 SIPStrings::StringF(SipStrConsts::ERegister) ) |
|
1019 { |
|
1020 return; |
|
1021 } |
|
1022 } |
|
1023 if ( aMessage->HasHeader( |
|
1024 SIPStrings::StringF(SipStrConsts::EContactHeader) ) ) |
|
1025 { |
|
1026 TSglQueIter<CSIPHeaderBase> iter = |
|
1027 aMessage->Headers( |
|
1028 SIPStrings::StringF(SipStrConsts::EContactHeader) ); |
|
1029 CSIPHeaderBase* header = 0; |
|
1030 CURIContainer* uriContainer = 0; |
|
1031 while ( ( header = iter++ ) != 0 ) |
|
1032 { |
|
1033 CSIPContactHeader* contact = |
|
1034 static_cast<CSIPContactHeader*>( header ); |
|
1035 |
|
1036 CSIPAddress* sipAddr = contact->SIPAddress(); |
|
1037 if ( sipAddr ) |
|
1038 { |
|
1039 uriContainer = &sipAddr->URI(); |
|
1040 |
|
1041 if ( uriContainer->IsSIPURI() ) |
|
1042 { |
|
1043 CSIPURI* sipUri = uriContainer->SIPURI(); |
|
1044 HBufC8* localaddress = LocalAddressL(); |
|
1045 CleanupStack::PushL( localaddress ); |
|
1046 TUint port = sipUri->HostPort().Port(); |
|
1047 |
|
1048 if ( sipUri->HostPort().Host().CompareF( *localaddress ) == 0 && |
|
1049 sipUri->HostPort().HasPort() ) |
|
1050 { |
|
1051 if ( sipUri->HasParam( |
|
1052 SIPStrings::StringF(SipStrConsts::ETransport) ) ) |
|
1053 { |
|
1054 RStringF transport = |
|
1055 sipUri->ParamValue( |
|
1056 SIPStrings::StringF(SipStrConsts::ETransport) ); |
|
1057 |
|
1058 if ( transport == SIPStrings::StringF(SipStrConsts::ETCP) ) |
|
1059 { |
|
1060 iSettingsList.ReservePrivatePortL( aParams, port ); |
|
1061 iTransportOwner->AddListenerL( aParams, |
|
1062 KProtocolInetTcp, |
|
1063 port ); |
|
1064 CleanupStack::PopAndDestroy( localaddress ); |
|
1065 return; |
|
1066 } |
|
1067 |
|
1068 if ( transport == SIPStrings::StringF(SipStrConsts::ETLS) ) |
|
1069 { |
|
1070 // No support for incoming TLS connections |
|
1071 CleanupStack::PopAndDestroy( localaddress ); |
|
1072 return; |
|
1073 } |
|
1074 } |
|
1075 |
|
1076 iSettingsList.ReservePrivatePortL( aParams, port ); |
|
1077 iTransportOwner->AddListenerL( aParams, |
|
1078 KProtocolInetUdp, |
|
1079 port ); |
|
1080 } |
|
1081 CleanupStack::PopAndDestroy( localaddress ); |
|
1082 } |
|
1083 } |
|
1084 } |
|
1085 } |
|
1086 } |
|
1087 |
|
1088 // ----------------------------------------------------------------------------- |
|
1089 // CTransport::OnlyOneViaHeader |
|
1090 // ----------------------------------------------------------------------------- |
|
1091 // |
|
1092 TBool CTransport::OnlyOneViaHeader( CSIPMessage& aMessage ) |
|
1093 { |
|
1094 return aMessage.HeaderCount( |
|
1095 SIPStrings::StringF(SipStrConsts::EViaHeader) ) == 1; |
|
1096 } |
|
1097 |
|
1098 // ----------------------------------------------------------------------------- |
|
1099 // CTransport::MethodIsSameInCSecAndReqLine |
|
1100 // ----------------------------------------------------------------------------- |
|
1101 // |
|
1102 TBool CTransport::MethodIsSameInCSecAndReqLine( CSIPRequest& aMessage ) |
|
1103 { |
|
1104 if ( aMessage.HasHeader( SIPStrings::StringF(SipStrConsts::ECSeqHeader) ) ) |
|
1105 { |
|
1106 TSglQueIter<CSIPHeaderBase> iter = |
|
1107 aMessage.Headers(SIPStrings::StringF(SipStrConsts::ECSeqHeader) ); |
|
1108 CSIPHeaderBase* header = iter; |
|
1109 CSIPCSeqHeader* cseq = static_cast<CSIPCSeqHeader*>( header ); |
|
1110 if ( cseq->Method() == aMessage.Method() ) |
|
1111 { |
|
1112 return ETrue; |
|
1113 } |
|
1114 } |
|
1115 return EFalse; |
|
1116 } |
|
1117 |
|
1118 // ----------------------------------------------------------------------------- |
|
1119 // CTransport::SetPersistencyL |
|
1120 // ----------------------------------------------------------------------------- |
|
1121 // |
|
1122 void CTransport::SetPersistencyL( |
|
1123 const TInetAddr& /*aRemoteAddr*/, |
|
1124 TBool aIsPersistent, |
|
1125 MSIPNATBindingObserver* aBindingObserver ) |
|
1126 { |
|
1127 if ( !aBindingObserver ) |
|
1128 { |
|
1129 return; |
|
1130 } |
|
1131 |
|
1132 if ( aIsPersistent ) |
|
1133 { |
|
1134 AddBindingObserverL( *aBindingObserver ); |
|
1135 } |
|
1136 else |
|
1137 { |
|
1138 RemoveBindingObserver( *aBindingObserver ); |
|
1139 } |
|
1140 } |
|
1141 |
|
1142 // ----------------------------------------------------------------------------- |
|
1143 // CTransport::IsPersistent |
|
1144 // ----------------------------------------------------------------------------- |
|
1145 // |
|
1146 TBool CTransport::IsPersistent() const |
|
1147 { |
|
1148 return ( iBindingObservers.Count() > 0 ); |
|
1149 } |
|
1150 |
|
1151 // ----------------------------------------------------------------------------- |
|
1152 // CTransport::IsDefault |
|
1153 // ----------------------------------------------------------------------------- |
|
1154 // |
|
1155 TBool CTransport::IsDefault() const |
|
1156 { |
|
1157 return ( iTransportParams.OwnerId() == KDefaultOwnerId ); |
|
1158 } |
|
1159 |
|
1160 // ----------------------------------------------------------------------------- |
|
1161 // CTransport::RemoveResponseRoute |
|
1162 // ----------------------------------------------------------------------------- |
|
1163 // |
|
1164 void CTransport::RemoveResponseRoute( const TInetAddr& aRemoteAddr ) |
|
1165 { |
|
1166 TInt pos = iIDArray.Count(); |
|
1167 while ( pos > 0 ) |
|
1168 { |
|
1169 if ( iIDArray[ pos - 1 ].Address().CmpAddr( aRemoteAddr ) ) |
|
1170 { |
|
1171 iIDArray.Remove( pos - 1 ); |
|
1172 } |
|
1173 pos--; |
|
1174 } |
|
1175 } |
|
1176 |
|
1177 // ----------------------------------------------------------------------------- |
|
1178 // CTransport::RemoveResponseRoute |
|
1179 // ----------------------------------------------------------------------------- |
|
1180 // |
|
1181 void CTransport::RemoveResponseRoute( TTransactionId aId ) |
|
1182 { |
|
1183 TInt pos = iIDArray.Count(); |
|
1184 while ( pos > 0 ) |
|
1185 { |
|
1186 if ( iIDArray[ pos - 1 ].TAId() == aId ) |
|
1187 { |
|
1188 iIDArray.Remove( pos - 1 ); |
|
1189 } |
|
1190 pos--; |
|
1191 } |
|
1192 iIDArray.Compress(); |
|
1193 } |
|
1194 |
|
1195 // ----------------------------------------------------------------------------- |
|
1196 // CTransport::SendToNetL |
|
1197 // ----------------------------------------------------------------------------- |
|
1198 // |
|
1199 void CTransport::SendToNetL( const TSIPTransportParams& /*aParams*/, |
|
1200 const TInetAddr& /*aAddress*/, |
|
1201 CSIPMessage& /*aMessage*/, |
|
1202 TBool /*aForceUDP*/, |
|
1203 TUint /*aOrigTransport*/, |
|
1204 TRequestStatus& /*aStatus*/ ) |
|
1205 { |
|
1206 __ASSERT_DEBUG(EFalse, |
|
1207 User::Panic(_L("CTransport::SendToNetL is called"), |
|
1208 KErrGeneral)); |
|
1209 } |
|
1210 |
|
1211 // ----------------------------------------------------------------------------- |
|
1212 // CTransport::SendToNetL |
|
1213 // ----------------------------------------------------------------------------- |
|
1214 // |
|
1215 void CTransport::SendToNetL( const TSIPTransportParams& /*aParams*/, |
|
1216 const TInetAddr& /*aAddress*/, |
|
1217 TTransactionId /*aId*/, |
|
1218 CSIPMessage& /*aMessage*/, |
|
1219 TRequestStatus& /*aStatus*/ ) |
|
1220 { |
|
1221 __ASSERT_DEBUG(EFalse, |
|
1222 User::Panic(_L("CTransport::SendToNetL is called"), |
|
1223 KErrGeneral)); |
|
1224 } |
|
1225 |
|
1226 // ----------------------------------------------------------------------------- |
|
1227 // CTransport::SendToNetL |
|
1228 // ----------------------------------------------------------------------------- |
|
1229 // |
|
1230 void CTransport::SendToNetL( const TSIPTransportParams& /*aParams*/, |
|
1231 const TInetAddr& /*aAddress*/, |
|
1232 CSIPMessage& /*aMessage*/, |
|
1233 TRequestStatus& /*aStatus*/ ) |
|
1234 { |
|
1235 } |
|
1236 |
|
1237 // ----------------------------------------------------------------------------- |
|
1238 // CTransport::IsAck |
|
1239 // ----------------------------------------------------------------------------- |
|
1240 // |
|
1241 TBool CTransport::IsAck( CSIPMessage& aMessage ) |
|
1242 { |
|
1243 if ( aMessage.IsRequest() ) |
|
1244 { |
|
1245 if ( static_cast<CSIPRequest*>( &aMessage )->Method() == |
|
1246 SIPStrings::StringF(SipStrConsts::EAck) ) |
|
1247 { |
|
1248 return ETrue; |
|
1249 } |
|
1250 } |
|
1251 return EFalse; |
|
1252 } |
|
1253 |
|
1254 // ----------------------------------------------------------------------------- |
|
1255 // CTransport::HandleSigCompAllowDenyL |
|
1256 // ----------------------------------------------------------------------------- |
|
1257 // |
|
1258 void CTransport::HandleSigCompAllowDenyL( |
|
1259 const TInetAddr& aRemoteAddr, |
|
1260 TInt aParserError, |
|
1261 TBool aCompressed ) |
|
1262 { |
|
1263 if ( !iSigCompHandler->IsSupported() || !aCompressed ) |
|
1264 { |
|
1265 return; |
|
1266 } |
|
1267 |
|
1268 if ( aParserError == KErrNone ) |
|
1269 { |
|
1270 iSigCompHandler->AllowL( aRemoteAddr, |
|
1271 iTransportOwner->IapId() ); |
|
1272 } |
|
1273 else |
|
1274 { |
|
1275 iSigCompHandler->Deny(); |
|
1276 } |
|
1277 } |
|
1278 |
|
1279 // ----------------------------------------------------------------------------- |
|
1280 // CTransport::CancelResponseSend |
|
1281 // ----------------------------------------------------------------------------- |
|
1282 // |
|
1283 TBool CTransport::CancelResponseSend( |
|
1284 TTransactionId aId, |
|
1285 TBool aCancelAlso2xxResponses ) |
|
1286 { |
|
1287 // Remove response route information only after all responses related |
|
1288 // to the transaction are canceled. |
|
1289 if ( aCancelAlso2xxResponses ) |
|
1290 { |
|
1291 RemoveResponseRoute( aId ); |
|
1292 } |
|
1293 |
|
1294 return EFalse; |
|
1295 } |
|
1296 |
|
1297 // ----------------------------------------------------------------------------- |
|
1298 // CTransport::ProtocolType |
|
1299 // ----------------------------------------------------------------------------- |
|
1300 // |
|
1301 TUint CTransport::ProtocolType() |
|
1302 { |
|
1303 return Protocol(); |
|
1304 } |
|
1305 |
|
1306 // ----------------------------------------------------------------------------- |
|
1307 // CTransport::LocalAddressL |
|
1308 // ----------------------------------------------------------------------------- |
|
1309 // |
|
1310 HBufC8* CTransport::LocalAddressL() |
|
1311 { |
|
1312 TInetAddr address; |
|
1313 iTransportOwner->GetLocalAddrL( address, NULL ); |
|
1314 return ConvertInetAddrToTextL( address ); |
|
1315 } |
|
1316 |
|
1317 // ----------------------------------------------------------------------------- |
|
1318 // CTransport::HandleMixedAddressFamilysL |
|
1319 // ----------------------------------------------------------------------------- |
|
1320 // |
|
1321 void CTransport::HandleMixedAddressFamilysL( |
|
1322 CSIPMessage& aMessage, |
|
1323 const TInetAddr& aRemoteAddr ) |
|
1324 { |
|
1325 // Possibly update contact header if message is request |
|
1326 if ( aMessage.IsRequest() ) |
|
1327 { |
|
1328 if ( aMessage.HasHeader( |
|
1329 SIPStrings::StringF(SipStrConsts::EContactHeader) ) ) |
|
1330 { |
|
1331 TSglQueIter<CSIPHeaderBase> iter = |
|
1332 aMessage.Headers( |
|
1333 SIPStrings::StringF(SipStrConsts::EContactHeader) ); |
|
1334 CSIPHeaderBase* header = 0; |
|
1335 while ( ( header = iter++ ) != 0 ) |
|
1336 { |
|
1337 CSIPContactHeader* contact = |
|
1338 static_cast<CSIPContactHeader*>( header ); |
|
1339 CSIPAddress* sipAddr = contact->SIPAddress(); |
|
1340 |
|
1341 if ( sipAddr ) |
|
1342 { |
|
1343 CURIContainer& uriContainer = sipAddr->URI(); |
|
1344 if ( uriContainer.IsSIPURI() ) |
|
1345 { |
|
1346 ChangeHostAddressFamilyIfNeededL( |
|
1347 uriContainer.SIPURI()->HostPort(), |
|
1348 aRemoteAddr ); |
|
1349 } |
|
1350 } |
|
1351 } |
|
1352 } |
|
1353 } |
|
1354 |
|
1355 // Possibly update via header (also if message is response) |
|
1356 CSIPViaHeader* viaHeader = TopViaHeader( &aMessage ); |
|
1357 if ( viaHeader ) |
|
1358 { |
|
1359 ChangeHostAddressFamilyIfNeededL( viaHeader->SentByHostPort(), |
|
1360 aRemoteAddr ); |
|
1361 } |
|
1362 } |
|
1363 |
|
1364 // ----------------------------------------------------------------------------- |
|
1365 // CTransport::IsConnectedTransport |
|
1366 // ----------------------------------------------------------------------------- |
|
1367 // |
|
1368 TBool CTransport::IsConnectedTransport() |
|
1369 { |
|
1370 TUint protocol( Protocol() ); |
|
1371 return ( protocol == KProtocolInetTcp || protocol == KProtocolTls ); |
|
1372 } |
|
1373 |
|
1374 // ----------------------------------------------------------------------------- |
|
1375 // CTransport::NotifyFlowFailure |
|
1376 // ----------------------------------------------------------------------------- |
|
1377 // |
|
1378 TBool CTransport::NotifyFlowFailure() |
|
1379 { |
|
1380 // NOTE: Notification leads to synchronous removal of the bindingobserver |
|
1381 // from the array and the whole transport is removed when all observers |
|
1382 // has been removed. |
|
1383 |
|
1384 TInt observerCount( iBindingObservers.Count() ); |
|
1385 TInt lastIndex( observerCount - 1 ); |
|
1386 for ( TInt i = lastIndex; i >= 0; i-- ) |
|
1387 { |
|
1388 iBindingObservers[ i ]->FlowFailure( KErrSIPTransportFailure ); |
|
1389 } |
|
1390 |
|
1391 return ( observerCount > 0 ); |
|
1392 } |
|
1393 |
|
1394 // ----------------------------------------------------------------------------- |
|
1395 // CTransport::SendErrorResponseL |
|
1396 // ----------------------------------------------------------------------------- |
|
1397 // |
|
1398 void CTransport::SendErrorResponseL( |
|
1399 TUint aResponseCode, |
|
1400 TInt aStrIndex, |
|
1401 CSIPMessage& aMessage, |
|
1402 const TInetAddr& aAddr ) |
|
1403 { |
|
1404 if ( !IsAck( aMessage ) ) |
|
1405 { |
|
1406 ErrorHandler().SendErrorResponseL( |
|
1407 iTransportParams, |
|
1408 aResponseCode, |
|
1409 SIPStrings::StringF( aStrIndex ), |
|
1410 aMessage, |
|
1411 aAddr ); |
|
1412 } |
|
1413 } |
|
1414 |
|
1415 // ----------------------------------------------------------------------------- |
|
1416 // CTransport::UpdateContactHeadersL |
|
1417 // ----------------------------------------------------------------------------- |
|
1418 // |
|
1419 void CTransport::UpdateContactHeadersL( |
|
1420 const TSIPTransportParams& aParams, |
|
1421 CSIPMessage* aMessage, |
|
1422 TBool aUpdatePorts ) |
|
1423 { |
|
1424 if ( !aMessage ) |
|
1425 { |
|
1426 return; |
|
1427 } |
|
1428 |
|
1429 TSglQueIter<CSIPHeaderBase> iter = |
|
1430 aMessage->Headers( SIPStrings::StringF(SipStrConsts::EContactHeader) ); |
|
1431 CSIPHeaderBase* header = NULL; |
|
1432 while ( ( header = iter++ ) != NULL ) |
|
1433 { |
|
1434 CSIPContactHeader* contact = static_cast<CSIPContactHeader*>( header ); |
|
1435 CSIPAddress* sipAddr = contact->SIPAddress(); |
|
1436 |
|
1437 if ( sipAddr ) |
|
1438 { |
|
1439 CURIContainer& uri = sipAddr->URI(); |
|
1440 if ( uri.IsSIPURI() ) |
|
1441 { |
|
1442 TUint receivePort = |
|
1443 iSettingsList.SavedLocalReceivePort( aParams.TransportId() ); |
|
1444 |
|
1445 if ( aUpdatePorts && receivePort > 0 ) |
|
1446 { |
|
1447 uri.SIPURI()->HostPort().SetPort( receivePort ); |
|
1448 } |
|
1449 |
|
1450 RStringF transportParam = |
|
1451 uri.SIPURI()->ParamValue( |
|
1452 SIPStrings::StringF( SipStrConsts::ETransport ) ); |
|
1453 |
|
1454 if ( Protocol() == KProtocolTls ) |
|
1455 { |
|
1456 RStringF tls = SIPStrings::StringF( SipStrConsts::ETLS ); |
|
1457 // SIP-URI with transport=TLS must not use sips scheme |
|
1458 uri.SIPURI()->SetSIPS( transportParam != tls ); |
|
1459 if(transportParam == tls) |
|
1460 { |
|
1461 uri.SIPURI()->SetSIPS(EFalse); |
|
1462 //Delete the param transport=tls from the URI as it is deprecated in RFC 3261 |
|
1463 uri.SIPURI()->DeleteParam(SIPStrings::StringF( SipStrConsts::ETransport )); |
|
1464 } |
|
1465 } |
|
1466 else |
|
1467 { |
|
1468 uri.SIPURI()->SetSIPS( EFalse ); |
|
1469 } |
|
1470 } |
|
1471 } |
|
1472 } |
|
1473 |
|
1474 } |
|
1475 |
|
1476 // ----------------------------------------------------------------------------- |
|
1477 // CTransport::ChangeHostAddressFamilyIfNeededL |
|
1478 // ----------------------------------------------------------------------------- |
|
1479 // |
|
1480 void CTransport::ChangeHostAddressFamilyIfNeededL( |
|
1481 CSIPHostPort& aHostPort, |
|
1482 const TInetAddr& aRemoteAddr ) |
|
1483 { |
|
1484 if ( aHostPort.HostType() == CSIPHostPort::ESIPHostName || |
|
1485 aHostPort.HostType() == CSIPHostPort::ESIPNoHost ) |
|
1486 { |
|
1487 return; |
|
1488 } |
|
1489 |
|
1490 TInetAddr hostInetAddr; |
|
1491 ConvertToInetAddrL( aHostPort.Host(), hostInetAddr ); |
|
1492 |
|
1493 if ( iTransportOwner->IsLocalAddr( hostInetAddr ) ) |
|
1494 { |
|
1495 // Fills hostInetAddr based on the address family of aRemoteAddr. |
|
1496 // If aRemoteAddr is IPv6, then hostInetAddr is set to IPv6. |
|
1497 // If aRemoteAddr is IPv4, then hostInetAddr is set to IPv4 if possible. |
|
1498 iTransportOwner->FillWithMatchingAddrFamily( |
|
1499 hostInetAddr, &aRemoteAddr ); |
|
1500 } |
|
1501 else |
|
1502 { |
|
1503 TBool isRemoteIPv6Addr( aRemoteAddr.Address() == 0 || |
|
1504 aRemoteAddr.IsV4Compat() ); |
|
1505 |
|
1506 if ( isRemoteIPv6Addr && aHostPort.HostType() == CSIPHostPort::ESIPIpv4 ) |
|
1507 { |
|
1508 // Update host if remote address is IPv6 and host address is IPv4 |
|
1509 hostInetAddr.ConvertToV4Compat(); |
|
1510 } |
|
1511 else if ( !isRemoteIPv6Addr && |
|
1512 ( hostInetAddr.IsV4Compat() || hostInetAddr.IsV4Mapped() ) ) |
|
1513 { |
|
1514 // Update host if remote address is IPv4 address and host is |
|
1515 // IPv6 address which can be converted to V4 |
|
1516 hostInetAddr.ConvertToV4(); |
|
1517 } |
|
1518 else |
|
1519 { |
|
1520 // Otherwise no actions taken |
|
1521 return; |
|
1522 } |
|
1523 } |
|
1524 |
|
1525 HBufC8* hostAddr = ConvertInetAddrToTextL( hostInetAddr ); |
|
1526 CleanupStack::PushL( hostAddr ); |
|
1527 aHostPort.SetHostL( *hostAddr ); |
|
1528 CleanupStack::PopAndDestroy( hostAddr ); |
|
1529 } |
|
1530 |
|
1531 // ----------------------------------------------------------------------------- |
|
1532 // CTransport::HandleClientResponseRPortL |
|
1533 // ----------------------------------------------------------------------------- |
|
1534 // |
|
1535 TBool CTransport::HandleClientResponseRPortL( |
|
1536 CSIPViaHeader& aViaHeader, |
|
1537 TInetAddr& aAddr ) |
|
1538 { |
|
1539 if ( aViaHeader.Transport() != SIPStrings::StringF( SipStrConsts::EUDP ) ) |
|
1540 { |
|
1541 return EFalse; |
|
1542 } |
|
1543 |
|
1544 TBool portSet( EFalse ); |
|
1545 RStringF rport = SIPStrings::Pool().OpenFStringL( KParamrport ); |
|
1546 CleanupClosePushL( rport ); |
|
1547 |
|
1548 if ( HasValue( aViaHeader, rport ) ) |
|
1549 { |
|
1550 TLex8 lexer( aViaHeader.ParamValue( rport ).DesC() ); |
|
1551 TInt rportVal( 0 ); |
|
1552 User::LeaveIfError( lexer.Val( rportVal ) ); |
|
1553 aAddr.SetPort( rportVal ); |
|
1554 portSet = ETrue; |
|
1555 } |
|
1556 |
|
1557 CleanupStack::PopAndDestroy(); // rport |
|
1558 |
|
1559 return portSet; |
|
1560 } |
|
1561 |
|
1562 // ----------------------------------------------------------------------------- |
|
1563 // CTransport::HandleResponseNATTraversalL |
|
1564 // ----------------------------------------------------------------------------- |
|
1565 // |
|
1566 void CTransport::HandleResponseNATTraversalL( |
|
1567 CSIPResponse& aResponse, |
|
1568 const TInetAddr& aRemoteAddr, |
|
1569 MSIPNATBindingObserver* aBindingObserver ) |
|
1570 { |
|
1571 TBool persistent( EFalse ); |
|
1572 CSIPCSeqHeader* cseq = aResponse.CSeq(); |
|
1573 if ( aResponse.Type() == CSIPResponse::E2XX && |
|
1574 cseq && |
|
1575 cseq->Method() == SIPStrings::StringF( SipStrConsts::ERegister ) ) |
|
1576 { |
|
1577 CSocketContainer& container = GetSocketContainerL( aRemoteAddr ); |
|
1578 |
|
1579 if ( container.HasSecureSocket() ) |
|
1580 { |
|
1581 persistent = iNATTraversal.RefreshNATBindingL( |
|
1582 *container.SecureSocket(), |
|
1583 aBindingObserver ); |
|
1584 } |
|
1585 else |
|
1586 { |
|
1587 persistent = iNATTraversal.RefreshNATBindingL( |
|
1588 container.Socket(), |
|
1589 aBindingObserver ); |
|
1590 } |
|
1591 SetPersistencyL( aRemoteAddr, persistent, aBindingObserver ); |
|
1592 } |
|
1593 InformSendingStatus( aRemoteAddr ); |
|
1594 } |
|
1595 |
|
1596 // ----------------------------------------------------------------------------- |
|
1597 // CTransport::HasValue |
|
1598 // ----------------------------------------------------------------------------- |
|
1599 // |
|
1600 TBool CTransport::HasValue( CSIPViaHeader& aViaHeader, RStringF& aParam ) |
|
1601 { |
|
1602 TBool hasVal( EFalse ); |
|
1603 if ( aViaHeader.HasParam( aParam ) ) |
|
1604 { |
|
1605 hasVal = aViaHeader.ParamValue( aParam ).DesC().Length() > 0; |
|
1606 } |
|
1607 return hasVal; |
|
1608 } |
|
1609 |
|
1610 // ----------------------------------------------------------------------------- |
|
1611 // CTransport::AddBindingObserverL |
|
1612 // ----------------------------------------------------------------------------- |
|
1613 // |
|
1614 void CTransport::AddBindingObserverL( MSIPNATBindingObserver& aBindingObserver ) |
|
1615 { |
|
1616 // Don't mind if the observer already exists. |
|
1617 TInt err = iBindingObservers.InsertInAddressOrder( &aBindingObserver ); |
|
1618 if ( err && err != KErrAlreadyExists ) |
|
1619 { |
|
1620 User::Leave( err ); |
|
1621 } |
|
1622 } |
|
1623 |
|
1624 // ----------------------------------------------------------------------------- |
|
1625 // CTransport::RemoveBindingObserver |
|
1626 // ----------------------------------------------------------------------------- |
|
1627 // |
|
1628 TBool CTransport::RemoveBindingObserver( |
|
1629 MSIPNATBindingObserver& aBindingObserver ) |
|
1630 { |
|
1631 TInt index = iBindingObservers.FindInAddressOrder( &aBindingObserver ); |
|
1632 TBool found( index >= 0 && index < iBindingObservers.Count() ); |
|
1633 if ( found ) |
|
1634 { |
|
1635 iBindingObservers.Remove( index ); |
|
1636 iBindingObservers.Compress(); |
|
1637 } |
|
1638 |
|
1639 // Allow removal of whole transport if no more observers exist. |
|
1640 // Reserved transports are removed with different mechanism. |
|
1641 return ( found && !IsPersistent() && !IsReservedTransport() ); |
|
1642 } |
|
1643 |
|
1644 // ----------------------------------------------------------------------------- |
|
1645 // CTransport::ConvertToInetAddrL |
|
1646 // ----------------------------------------------------------------------------- |
|
1647 // |
|
1648 void CTransport::ConvertToInetAddrL( |
|
1649 const TDesC8& aAddrStr, |
|
1650 TInetAddr& aAddr ) |
|
1651 { |
|
1652 HBufC* tempInputAddr = HBufC::NewLC( aAddrStr.Length() ); |
|
1653 TPtr ptempInputAddr( tempInputAddr->Des() ); |
|
1654 ptempInputAddr.Copy( aAddrStr ); |
|
1655 |
|
1656 User::LeaveIfError( aAddr.Input( ptempInputAddr ) ); |
|
1657 |
|
1658 CleanupStack::PopAndDestroy( tempInputAddr ); |
|
1659 } |
|
1660 |
|
1661 // ----------------------------------------------------------------------------- |
|
1662 // CTransport::ConvertInetAddrToTextL |
|
1663 // ----------------------------------------------------------------------------- |
|
1664 // |
|
1665 HBufC8* CTransport::ConvertInetAddrToTextL( const TInetAddr& aAddr ) |
|
1666 { |
|
1667 const TInt KMaxIPAddrLen = 256; |
|
1668 HBufC* addressOut = HBufC::NewLC( KMaxIPAddrLen ); |
|
1669 TPtr outputPtr( addressOut->Des() ); |
|
1670 aAddr.Output( outputPtr ); |
|
1671 |
|
1672 HBufC8* addressResult = HBufC8::NewL( addressOut->Length() ); |
|
1673 TPtr8 resultPtr( addressResult->Des() ); |
|
1674 CnvUtfConverter::ConvertFromUnicodeToUtf8( resultPtr, *addressOut ); |
|
1675 CleanupStack::PopAndDestroy( addressOut ); |
|
1676 |
|
1677 return addressResult; |
|
1678 } |
|
1679 |
|
1680 // End of File |