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1 // Copyright (c) 2003-2009 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 // SSL3.0 and TLS1.0 Application Data source file. |
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15 // Describes the implementation of the Application data (transmission |
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16 // and reception) state machines. |
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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 @file |
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22 */ |
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23 |
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24 #include "applicationdata.h" |
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25 #include "tlsconnection.h" |
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26 #include "recordprotocolevents.h" |
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27 #include "AlertProtocolEvents.h" |
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28 #include "hellorequest.h" |
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29 |
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30 |
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31 CSendAppData* CSendAppData::NewL( CRecordComposer& aRecordComposer ) |
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32 { |
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33 LOG(Log::Printf(_L("CSendAppData::NewL()"));) |
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34 CSendAppData* self = new(ELeave) CSendAppData( aRecordComposer ); |
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35 LOG(Log::Printf(_L("self %x - %x"), self, (TUint)self + sizeof( CSendAppData ));) |
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36 CleanupStack::PushL( self ); |
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37 self->ConstructL( aRecordComposer ); |
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38 CleanupStack::Pop(); |
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39 return self; |
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40 } |
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41 |
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42 inline CSendAppData::CSendAppData( CRecordComposer& aRecordComposer ) : |
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43 iRecordComposer( aRecordComposer ) |
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44 { |
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45 LOG(Log::Printf(_L("CSendAppData::CSendAppData()\n"));) |
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46 iHistory = KTlsApplicationData; // This shows explicitly where we are |
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47 } |
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48 |
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49 CSendAppData::~CSendAppData() |
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50 { |
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51 LOG(Log::Printf(_L("CSendAppData::~CSendAppData()\n"));) |
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52 SetSockXfrLength( NULL ); |
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53 Cancel( KErrNone ); |
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54 delete iSendAlert; |
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55 } |
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56 |
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57 inline void CSendAppData::ConstructL( CRecordComposer& aRecordComposer ) |
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58 { |
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59 iSendAlert = new(ELeave)CSendAlert( *this, aRecordComposer ); |
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60 LOG(Log::Printf(_L("CSendAppData::ConstructL() %x\n"), SendAlert());) |
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61 ResumeL(); |
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62 } |
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63 |
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64 void CSendAppData::Suspend() |
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65 { |
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66 LOG(Log::Printf(_L("CSendAppData::Suspend()\n"));) |
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67 |
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68 iCurrentPos = iRecordComposer.CurrentPos(); |
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69 iAppData = iRecordComposer.UserData(); |
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70 iRecordComposer.SetUserData( NULL ); |
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71 } |
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72 |
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73 void CSendAppData::ResumeL() |
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74 { |
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75 LOG(Log::Printf(_L("CSendAppData::ResumeL()\n"));) |
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76 |
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77 iRecordComposer.SetUserData( iAppData ); |
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78 iRecordComposer.ReConstructL( this, iCurrentPos ); //it sets record type to ETlsAppDataContentType |
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79 iCurrentPos = 0; |
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80 |
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81 if ( !iActiveEvent ) |
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82 { //active event is the record composer |
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83 iActiveEvent = &iRecordComposer; |
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84 } |
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85 } |
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86 |
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87 void CSendAppData::SetSockXfrLength( TInt* aLen ) |
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88 { |
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89 LOG(Log::Printf(_L("CSendAppData::SetSockXfrLength()\n"));) |
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90 |
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91 iSockXfrLength = aLen; |
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92 if ( iSockXfrLength ) |
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93 { |
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94 *iSockXfrLength = 0; |
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95 } |
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96 } |
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97 |
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98 void CSendAppData::OnCompletion() |
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99 { |
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100 LOG(Log::Printf(_L("CSendAppData::OnCompletion()\n"));) |
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101 |
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102 TDesC8* pAppData = iRecordComposer.UserData(); |
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103 if ( pAppData ) //could have finished via an error |
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104 { |
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105 if ( iSockXfrLength ) |
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106 { |
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107 *iSockXfrLength = iRecordComposer.CurrentPos(); |
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108 } |
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109 if ( iLastError == KErrNone && iStatus.Int() == KErrNone ) |
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110 { |
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111 //hello request received? |
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112 if ( iStateMachineNotify == iHelloReq && iHelloReq ) |
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113 {//no user request completion, signal to hello request |
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114 iHelloReq->OnCompletion( this ); |
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115 return; |
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116 } |
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117 // Anything more to send? |
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118 else if ( pAppData->Length() > iRecordComposer.CurrentPos() ) |
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119 { // No error (cancel) && still some app data in the app buffer => |
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120 // => write another fragment |
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121 iActiveEvent = &iRecordComposer; |
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122 Start( iClientStatus, iStateMachineNotify ); |
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123 return; |
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124 } |
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125 } |
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126 } |
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127 |
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128 iRecordComposer.SetUserData( NULL ); //we'r finished |
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129 iRecordComposer.ResetCurrentPos(); |
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130 |
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131 /* Fix for the TLS Client hang issue DEF130128. |
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132 * In the case of where one of the state machines receives the |
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133 * asynchronous event alert due to TLS server reset, the state |
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134 * machine triggers the cleanup activities. The TlsConnection |
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135 * fails to clean up the resources allocated for handling data |
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136 * transfer and TLS handshake in such cases if one of the state |
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137 * machines has issued the asynchronous server request and is |
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138 * waiting for the request to complete. The change made below |
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139 * will allow the code complete the pending status in such cases |
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140 * and allow the cleanup to proceed. |
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141 */ |
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142 if ( iStatus.Int() == KRequestPending ) |
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143 { |
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144 TRequestStatus* p=&iStatus; |
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145 User::RequestComplete( p, iLastError ); |
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146 } |
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147 /* End of fix for the TLS Client hang issue DEF130128. */ |
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148 |
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149 CStateMachine::OnCompletion(); |
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150 } |
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151 |
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152 void CSendAppData::DoCancel() |
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153 { |
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154 LOG(Log::Printf(_L("CSendAppData::DoCancel()\n"));) |
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155 |
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156 iLastError = KErrCancel; |
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157 iRecordComposer.CancelAll(); |
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158 CStateMachine::DoCancel(); |
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159 } |
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160 |
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161 // |
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162 // |
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163 CRecvAppData* CRecvAppData::NewL( CTlsConnection& aTlsConnection ) |
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164 { |
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165 LOG(Log::Printf(_L("CRecvAppData::NewL()"));) |
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166 CRecvAppData* self = new(ELeave) CRecvAppData( aTlsConnection ); |
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167 LOG(Log::Printf(_L("self %x - %x"), self, (TUint)self + sizeof( CRecvAppData ));) |
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168 CleanupStack::PushL( self ); |
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169 self->ConstructL( aTlsConnection ); |
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170 CleanupStack::Pop(); |
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171 return self; |
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172 } |
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173 |
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174 inline CRecvAppData::CRecvAppData( CTlsConnection& aTlsConnection ) : |
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175 iHeldData( 0, 0 ), |
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176 iRecordParser( aTlsConnection.RecordParser() ) |
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177 { |
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178 LOG(Log::Printf(_L("CRecvAppData::CRecvAppData()\n"));) |
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179 iHistory = KTlsApplicationData; // This shows explicitly where we are |
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180 } |
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181 |
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182 CRecvAppData::~CRecvAppData() |
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183 { |
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184 LOG(Log::Printf(_L("CRecvAppData::~CRecvAppData()\n"));) |
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185 SetSockXfrLength( NULL ); |
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186 Cancel( KErrNone ); |
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187 delete iSendAlert; |
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188 } |
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189 |
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190 inline void CRecvAppData::ConstructL( CTlsConnection& aTlsConnection ) |
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191 { |
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192 iSendAlert = new(ELeave)CSendAlert( *this, aTlsConnection.RecordComposer() ); |
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193 LOG(Log::Printf(_L("CRecvAppData::ConstructL() %x\n"), SendAlert());) |
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194 ResumeL( aTlsConnection ); |
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195 } |
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196 |
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197 void CRecvAppData::Suspend() |
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198 { |
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199 LOG(Log::Printf(_L("CRecvAppData::Suspend()\n"));) |
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200 |
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201 iHeldData = iRecordParser.HeldData(); |
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202 iAppData = iRecordParser.UserData(); |
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203 iRecordParser.SetUserData( NULL ); |
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204 iRecordParser.SetUserMaxLength( 0 ); |
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205 } |
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206 |
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207 void CRecvAppData::ResumeL( CTlsConnection& aTlsConnection ) |
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208 { |
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209 LOG(Log::Printf(_L("CRecvAppData::ResumeL()"));) |
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210 |
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211 __ASSERT_DEBUG( (iAppData && iClientStatus) || (!iAppData && !iClientStatus), TlsPanic(ETlsPanicAppDataResumeButNotStarted)); |
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212 __ASSERT_DEBUG( iSendAlert, TlsPanic(ETlsPanicAlertReceived)); |
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213 iRecordParser.SetUserData( iAppData ); |
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214 iRecordParser.SetUserMaxLength( iAppData ? iAppData->MaxLength() : 0 ); |
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215 iRecordParser.ReConstructL( this, iHeldData, *iSendAlert ); |
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216 |
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217 // Destroy the Rx list & add the only handshake event accepted during application data mode. |
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218 CHandshakeParser* pParser = iRecordParser.HandshakeParser(); |
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219 pParser->DestroyRxList(); |
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220 CHelloRequest* helloReq = new(ELeave)CHelloRequest( aTlsConnection, *this ); |
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221 //coverity[leave_without_push] |
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222 LOG(Log::Printf(_L("helloReq %x - %x"), helloReq, (TUint)helloReq + sizeof( CHelloRequest ));) |
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223 pParser->AddToList( *helloReq ); |
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224 |
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225 aTlsConnection.SendAppData()->SetHelloRequest( helloReq ); //no ownership passed |
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226 if ( !iActiveEvent ) |
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227 { //active event is the record parser |
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228 iActiveEvent = &iRecordParser; |
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229 } |
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230 } |
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231 |
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232 void CRecvAppData::OnCompletion() |
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233 { |
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234 LOG(Log::Printf(_L("CRecvAppData::OnCompletion()\n"));) |
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235 |
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236 if ( iLastError == KErrNone && iStatus.Int() == KErrNone ) |
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237 { |
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238 if ( iRecordParser.TlsRecordType() == ETlsHandshakeContentType ) |
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239 {//it could be just hello request received => suspend() could have already happened |
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240 return; |
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241 } |
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242 TDes8* pAppData = iRecordParser.UserData(); |
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243 if ( pAppData ) //could have finished via an error |
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244 { |
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245 if ( iSockXfrLength && pAppData->Length() ) //are we to report RecvOneOrMore? |
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246 { //yes and finish |
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247 *iSockXfrLength = pAppData->Length(); |
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248 } |
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249 else if ( pAppData->Length() < pAppData->MaxLength() ) |
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250 { //no error (cancel) && still some free room in the app data buffer => |
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251 //=> read another fragment |
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252 iActiveEvent = &iRecordParser; |
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253 Start( iClientStatus, iStateMachineNotify ); |
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254 return; |
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255 } |
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256 } |
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257 } |
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258 |
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259 iRecordParser.SetUserData( NULL ); //we'r finished |
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260 iRecordParser.SetUserMaxLength( 0 ); |
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261 |
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262 /* Fix for the TLS Client hang issue DEF130128. |
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263 * In the case of where one of the state machines receives the |
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264 * asynchronous event alert due to TLS server reset, the state |
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265 * machine triggers the cleanup activities. The TlsConnection |
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266 * fails to clean up the resources allocated for handling data |
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267 * transfer and TLS handshake in such cases if one of the state |
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268 * machines has issued the asynchronous server request and is |
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269 * waiting for the request to complete. The change made below |
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270 * will allow the code complete the pending status in such cases |
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271 * and allow the cleanup to proceed. |
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272 */ |
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273 if ( iStatus.Int() == KRequestPending ) |
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274 { |
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275 TRequestStatus* p=&iStatus; |
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276 User::RequestComplete( p, iLastError ); |
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277 } |
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278 /* End of fix for the TLS Client hang issue DEF130128. */ |
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279 |
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280 CStateMachine::OnCompletion(); |
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281 } |
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282 |
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283 void CRecvAppData::DoCancel() |
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284 { |
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285 LOG(Log::Printf(_L("CRecvAppData::DoCancel()\n"));) |
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286 |
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287 iLastError = KErrCancel; |
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288 iRecordParser.CancelAll(); |
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289 CStateMachine::DoCancel(); |
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290 } |