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1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Receiver of UDP datagrams |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <in_sock.h> |
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20 |
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21 #include "ikedatainterface.h" |
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22 #include "ikemsgheader.h" |
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23 |
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24 // CLASS HEADER |
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25 #include "ikev2receiver.h" |
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26 |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // Two-phased constructor. |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 CIkev2Receiver* CIkev2Receiver::NewL( MIkeDataInterface& aDataInterface, |
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35 MIkev2ReceiverCallback& aCallback ) |
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36 { |
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37 CIkev2Receiver* self = new (ELeave) CIkev2Receiver( aDataInterface, |
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38 aCallback ); |
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39 CleanupStack::PushL( self ); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop( self ); |
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42 return self; |
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43 } |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // Destructor. |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CIkev2Receiver::~CIkev2Receiver() |
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50 { |
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51 StopReceive(); |
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52 |
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53 delete iUdpData; |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // Constructor. |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 CIkev2Receiver::CIkev2Receiver( MIkeDataInterface& aDataInterface, |
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61 MIkev2ReceiverCallback& aCallback ) |
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62 : CActive( EPriorityStandard ), |
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63 iUdpData( NULL ), |
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64 iDataInterface( aDataInterface ), |
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65 iCallback( aCallback ) |
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66 { |
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67 CActiveScheduler::Add( this ); |
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68 } |
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69 |
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70 // --------------------------------------------------------------------------- |
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71 // Second phase construction. |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 void CIkev2Receiver::ConstructL() |
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75 { |
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76 StartReceive(); |
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77 } |
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78 |
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79 // --------------------------------------------------------------------------- |
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80 // Starts receive. |
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81 // --------------------------------------------------------------------------- |
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82 // |
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83 void CIkev2Receiver::StartReceive() |
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84 { |
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85 iReceivingData = ETrue; |
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86 DoReceive(); |
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87 } |
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88 |
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89 // --------------------------------------------------------------------------- |
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90 // Stops receive. |
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91 // --------------------------------------------------------------------------- |
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92 // |
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93 void CIkev2Receiver::StopReceive() |
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94 { |
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95 iReceivingData = EFalse; |
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96 Cancel(); |
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97 iDataInterface.StopReceive(); |
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98 } |
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99 |
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100 // --------------------------------------------------------------------------- |
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101 // From class CActive |
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102 // Handles completion of receive. |
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103 // --------------------------------------------------------------------------- |
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104 // |
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105 void CIkev2Receiver::RunL() |
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106 { |
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107 if ( iStatus.Int() == KErrNone ) |
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108 { |
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109 __ASSERT_DEBUG( iUdpData != NULL, |
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110 User::Invariant() ); |
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111 |
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112 const ThdrISAKMP* ikeHdr = ThdrISAKMP::Ptr( iUdpData->Des() ); |
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113 TInt msgLth = iUdpData->Length(); |
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114 |
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115 // Ignore possible <non-ESP marker> in the beginning of IKE message. |
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116 TUint32 ikeMsgHdrOctets = GET32( ikeHdr ); |
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117 if ( ikeMsgHdrOctets == NON_ESP_MARKER ) |
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118 { |
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119 ikeHdr = ikeHdr->GotoOffset( NON_ESP_MARKER_SIZE ); |
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120 msgLth -= NON_ESP_MARKER_SIZE; |
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121 } |
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122 |
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123 iCallback.IkeMsgReceived( *ikeHdr, iSrcAddr, iLocalPort ); |
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124 } |
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125 |
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126 delete iUdpData; |
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127 iUdpData = NULL; |
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128 |
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129 if ( iStatus.Int() == KErrNone ) |
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130 { |
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131 if ( iReceivingData ) |
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132 { |
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133 // Continue receiving. |
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134 DoReceive(); |
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135 } |
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136 } |
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137 else |
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138 { |
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139 iCallback.ReceiveError( iStatus.Int() ); |
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140 } |
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141 } |
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142 |
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143 // --------------------------------------------------------------------------- |
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144 // From class CActive |
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145 // Handles cancellation of receive. |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 void CIkev2Receiver::DoCancel() |
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149 { |
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150 iDataInterface.CancelReceive(); |
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151 |
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152 delete iUdpData; |
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153 iUdpData = NULL; |
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154 } |
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155 |
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156 // --------------------------------------------------------------------------- |
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157 // Receives UDP data. |
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158 // --------------------------------------------------------------------------- |
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159 // |
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160 void CIkev2Receiver::DoReceive() |
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161 { |
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162 iDataInterface.ReceiveUdpData( iUdpData, iSrcAddr, iLocalPort, iStatus ); |
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163 SetActive(); |
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164 } |
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165 |