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1 /* |
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2 * Copyright (c) 2007-2008 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: Connection multiplexer session abstraction. |
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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 |
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20 |
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21 #include <e32math.h> |
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22 #include <es_sock.h> |
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23 #include <es_sock_partner.h> |
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24 |
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25 #include "cncmsession.h" |
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26 #include "cncmstream.h" |
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27 #include "cncmconnection.h" |
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28 #include "cncmconnectionobserverhandler.h" |
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29 #include "cncmlocaladdressresolver.h" |
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30 #include "ncmconnectionmultiplexerlogs.h" |
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31 #include "cncmportstore.h" |
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32 #include "mncmsessionobserver.h" |
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33 #include "mncmconnectionmultiplexerobserver.h" |
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34 #include "natfwmediawrapper.h" |
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35 #include "cncmicmpv4receiver.h" |
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36 #include "cncmicmpv6receiver.h" |
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37 |
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38 const TUint KESockMessageSlots = 24; |
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39 |
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40 // --------------------------------------------------------------------------- |
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41 // CNcmSessionSession::CNcmSession |
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42 // --------------------------------------------------------------------------- |
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43 // |
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44 CNcmSession::CNcmSession( TUint aSessionId, |
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45 TUint32 aIapId, |
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46 MNcmConnectionMultiplexerObserver& aObserver, |
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47 MNcmSessionObserver& aSessionObserver ) : |
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48 CActive( EPriorityStandard ), |
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49 iSessionId( aSessionId ), iIapId( aIapId ), iObserver( aObserver ), |
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50 iSessionObserver( aSessionObserver ) |
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51 { |
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52 CActiveScheduler::Add( this ); |
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53 } |
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54 |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // CNcmSession::ConstructL |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 void CNcmSession::ConstructL( TUint aPortRangeStart, TUint aPortRangeStop ) |
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61 { |
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62 iPortStore = CNcmPortStore::NewL( aPortRangeStart, aPortRangeStop ); |
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63 |
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64 User::LeaveIfError( iSocketServ.Connect( KESockMessageSlots ) ); |
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65 |
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66 iConnPref.SetDialogPreference( ECommDbDialogPrefDoNotPrompt ); |
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67 iConnPref.SetIapId( iIapId ); |
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68 |
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69 User::LeaveIfError( iConnection.Open( iSocketServ ) ); |
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70 |
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71 TSecurityPolicy policy( ECapabilityNetworkServices ); |
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72 TSecurityPolicyBuf securityBuf(policy); |
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73 User::LeaveIfError( iConnection.Control( |
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74 KCOLConnection, KCoEnableCloneOpen, securityBuf ) ); |
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75 |
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76 iConnection.Start( iConnPref, iStatus ); |
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77 SetActive(); |
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78 } |
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79 |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // CNcmSession::NewL |
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83 // --------------------------------------------------------------------------- |
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84 // |
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85 CNcmSession* CNcmSession::NewL( TUint aSessionId, |
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86 TUint32 aIapId, TUint aPortRangeStart, TUint aPortRangeStop, |
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87 MNcmConnectionMultiplexerObserver& aObserver, |
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88 MNcmSessionObserver& aSessionObserver ) |
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89 { |
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90 CNcmSession* self = |
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91 CNcmSession::NewLC( aSessionId, aIapId, aPortRangeStart, |
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92 aPortRangeStop, aObserver, aSessionObserver ); |
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93 |
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94 CleanupStack::Pop( self ); |
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95 return self; |
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96 } |
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97 |
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98 |
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99 // --------------------------------------------------------------------------- |
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100 // CNcmSession::NewLC |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 CNcmSession* CNcmSession::NewLC( TUint aSessionId, |
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104 TUint32 aIapId, TUint aPortRangeStart, TUint aPortRangeStop, |
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105 MNcmConnectionMultiplexerObserver& aObserver, |
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106 MNcmSessionObserver& aSessionObserver ) |
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107 { |
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108 CNcmSession* self = |
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109 new( ELeave ) CNcmSession( aSessionId, aIapId, |
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110 aObserver, aSessionObserver ); |
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111 |
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112 CleanupStack::PushL( self ); |
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113 self->ConstructL( aPortRangeStart, aPortRangeStop ); |
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114 return self; |
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115 } |
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116 |
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117 |
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118 // --------------------------------------------------------------------------- |
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119 // CNcmSession::~CNcmSession |
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120 // --------------------------------------------------------------------------- |
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121 // |
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122 CNcmSession::~CNcmSession() |
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123 { |
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124 delete iIcmpV4receiver; |
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125 delete iIcmpV6receiver; |
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126 delete iPortStore; |
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127 |
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128 TInt ind( iStreams.Count() ); |
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129 |
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130 while ( ind-- ) |
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131 { |
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132 TRAP_IGNORE( RemoveStreamL( iStreams[ind]->StreamId() ) ) |
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133 } |
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134 |
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135 iConnection.Close(); |
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136 Cancel(); |
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137 |
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138 iSocketServ.Close(); |
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139 iStreams.Close(); |
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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 // CNcmSession::CreateStreamL |
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145 // --------------------------------------------------------------------------- |
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146 // |
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147 TUint CNcmSession::CreateStreamL( TInt aQos, |
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148 TUint aProtocol ) |
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149 { |
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150 TUint streamId( GenerateStreamId() ); |
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151 |
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152 CNcmStream* item = CNcmStream::NewLC( |
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153 iSessionId, streamId, aQos, aProtocol ); |
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154 |
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155 iStreams.AppendL( item ); |
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156 CleanupStack::Pop( item ); |
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157 |
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158 return item->StreamId(); |
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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 // CNcmSession::RemoveStreamL |
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164 // --------------------------------------------------------------------------- |
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165 // |
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166 void CNcmSession::RemoveStreamL( TUint aStreamId ) |
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167 { |
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168 TUint streamIndex( StreamIndexL( aStreamId ) ); |
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169 |
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170 delete iStreams[streamIndex]; |
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171 iStreams.Remove( streamIndex ); |
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172 } |
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173 |
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174 |
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175 // --------------------------------------------------------------------------- |
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176 // CNcmSession::ConnectionId |
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177 // --------------------------------------------------------------------------- |
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178 // |
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179 TUint32 CNcmSession::IapId() const |
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180 { |
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181 return iIapId; |
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182 } |
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183 |
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184 |
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185 // --------------------------------------------------------------------------- |
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186 // CNcmSession::ConnectionId |
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187 // --------------------------------------------------------------------------- |
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188 // |
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189 TUint CNcmSession::SessionId() const |
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190 { |
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191 return iSessionId; |
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192 } |
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193 |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // From class CActive |
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197 // |
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198 // CNcmSession::RunL |
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199 // --------------------------------------------------------------------------- |
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200 // |
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201 void CNcmSession::RunL() |
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202 { |
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203 __CONNECTIONMULTIPLEXER_INT1( |
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204 "CNcmSession::RunL - iStatus: ", iStatus.Int() ) |
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205 |
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206 if ( iStatus != KErrNone ) |
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207 { |
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208 iObserver.Notify( iSessionId, 0, |
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209 MNcmConnectionMultiplexerObserver::ESessionCreated, |
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210 iStatus.Int() ); |
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211 |
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212 iSessionObserver.SessionCreationFailed( iSessionId ); |
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213 } |
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214 else |
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215 { |
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216 iInitialized = ETrue; |
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217 |
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218 CNcmLocalAddressResolver* localAddressResolver( |
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219 CNcmLocalAddressResolver::NewLC( iSocketServ ) ); |
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220 |
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221 localAddressResolver->GetLocalAddrL( iIpv4Addr, iIpv6Addr, iIapId ); |
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222 CleanupStack::PopAndDestroy( localAddressResolver ); |
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223 |
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224 if ( !iIpv4Addr.IsUnspecified() ) |
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225 { |
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226 iIcmpV4receiver = |
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227 CNcmIcmpV4Receiver::NewL( iSocketServ, iConnection, *this ); |
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228 } |
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229 |
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230 if ( !iIpv6Addr.IsUnspecified() ) |
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231 { |
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232 iIcmpV6receiver = |
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233 CNcmIcmpV6Receiver::NewL( iSocketServ,iConnection, *this ); |
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234 } |
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235 |
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236 iObserver.Notify( iSessionId, 0, |
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237 MNcmConnectionMultiplexerObserver::ESessionCreated, |
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238 iStatus.Int() ); |
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239 } |
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240 } |
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241 |
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242 |
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243 // --------------------------------------------------------------------------- |
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244 // From class CActive |
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245 // |
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246 // DoCancel |
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247 // --------------------------------------------------------------------------- |
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248 // |
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249 void CNcmSession::DoCancel() |
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250 { |
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251 // RConnection doesn't cancel an outstanding request at Close() |
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252 // so we'll have to it "manually" here |
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253 if( iStatus.Int() == KRequestPending ) |
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254 { |
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255 TRequestStatus* status = &iStatus; |
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256 User::RequestComplete( status, KErrCancel ); |
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257 } |
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258 } |
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259 |
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260 |
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261 // ----------------------------------------------------------------------------- |
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262 // From class CActive |
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263 // |
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264 // CNcmSession::RunError |
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265 // ----------------------------------------------------------------------------- |
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266 // |
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267 TInt CNcmSession::RunError( TInt aError ) |
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268 { |
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269 __CONNECTIONMULTIPLEXER_INT1( |
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270 "CNcmSession::RunError aError: ", aError ) |
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271 |
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272 iObserver.Notify( iSessionId, 0, |
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273 MNcmConnectionMultiplexerObserver::ESessionCreated, |
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274 aError ); |
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275 |
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276 iSessionObserver.SessionCreationFailed( iSessionId ); |
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277 |
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278 aError = aError; |
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279 return KErrNone; |
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280 } |
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281 |
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282 |
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283 // --------------------------------------------------------------------------- |
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284 // CNcmSession::StreamByIdL |
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285 // --------------------------------------------------------------------------- |
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286 // |
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287 CNcmStream* CNcmSession::StreamByIdL( |
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288 TUint aStreamId ) |
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289 { |
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290 TInt ind( iStreams.Count() ); |
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291 |
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292 while ( ind-- ) |
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293 { |
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294 if ( iStreams[ind]->StreamId() == aStreamId ) |
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295 { |
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296 return iStreams[ind]; |
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297 } |
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298 } |
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299 |
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300 return NULL; |
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301 } |
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302 |
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303 |
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304 // --------------------------------------------------------------------------- |
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305 // CNcmSession::StreamIndexL |
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306 // --------------------------------------------------------------------------- |
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307 // |
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308 TUint CNcmSession::StreamIndexL( TUint aStreamId ) |
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309 { |
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310 TInt streamCount( iStreams.Count() ); |
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311 |
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312 for ( TInt i = 0; i < streamCount; i++ ) |
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313 { |
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314 if ( iStreams[i]->StreamId() == aStreamId ) |
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315 { |
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316 return i; |
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317 } |
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318 } |
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319 |
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320 User::Leave( KErrNotFound ); |
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321 return KErrNone; // To remove a compiler warning |
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322 } |
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323 |
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324 |
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325 // --------------------------------------------------------------------------- |
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326 // CNcmSession::SocketServer |
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327 // --------------------------------------------------------------------------- |
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328 // |
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329 RSocketServ& CNcmSession::SocketServer() |
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330 { |
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331 return iSocketServ; |
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332 } |
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333 |
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334 |
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335 // --------------------------------------------------------------------------- |
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336 // CNcmSession::Connection |
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337 // --------------------------------------------------------------------------- |
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338 // |
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339 RConnection& CNcmSession::Connection() |
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340 { |
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341 return iConnection; |
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342 } |
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343 |
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344 |
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345 // --------------------------------------------------------------------------- |
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346 // CNcmSession::GetConnectionName |
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347 // --------------------------------------------------------------------------- |
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348 // |
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349 TInt CNcmSession::GetConnectionName( TName& aConnectionName ) |
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350 { |
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351 return iConnection.Name( aConnectionName ); |
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352 } |
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353 |
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354 |
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355 // ----------------------------------------------------------------------------- |
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356 // CNcmSession::GenerateStreamId |
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357 // ----------------------------------------------------------------------------- |
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358 // |
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359 TUint CNcmSession::GenerateStreamId() const |
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360 { |
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361 return ( static_cast<TUint>( Math::Random() ) ); |
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362 } |
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363 |
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364 |
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365 // --------------------------------------------------------------------------- |
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366 // CNcmSession::PortStore |
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367 // --------------------------------------------------------------------------- |
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368 // |
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369 CNcmPortStore& CNcmSession::PortStore() const |
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370 { |
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371 __CONNECTIONMULTIPLEXER( "CNcmSession::PortStore" ) |
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372 |
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373 return *iPortStore; |
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374 } |
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375 |
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376 |
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377 // --------------------------------------------------------------------------- |
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378 // From class MNcmIcmpObserver |
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379 // |
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380 // Called as a result for ICMP error received |
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381 // --------------------------------------------------------------------------- |
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382 // |
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383 void CNcmSession::IcmpError( const TInetAddr& aAddress, |
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384 TInetAddr& aLocalAddress, TInetAddr& aRemoteAddress ) |
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385 { |
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386 TRAP_IGNORE( this->HandleIcmpErrorL( aAddress, aLocalAddress, |
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387 aRemoteAddress ) ) |
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388 } |
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389 |
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390 // --------------------------------------------------------------------------- |
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391 // CNcmSession::HandleIcmpErrorL |
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392 // --------------------------------------------------------------------------- |
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393 void CNcmSession::HandleIcmpErrorL( const TInetAddr& aAddress, |
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394 TInetAddr& aLocalAddress, TInetAddr& aRemoteAddress ) |
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395 { |
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396 __CONNECTIONMULTIPLEXER( "CNcmSession::HandleIcmpErrorL" ) |
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397 |
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398 TInt ind( iStreams.Count() ); |
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399 TUint mediaConnectionId( 0 ); |
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400 |
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401 while ( ind-- ) |
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402 { |
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403 mediaConnectionId = iStreams[ind]->MediaConnectionId(); |
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404 |
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405 if ( iStreams[ind]->ConnectionL( mediaConnectionId )-> |
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406 CheckSenderValidityToSending( aAddress ) ) |
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407 { |
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408 __CONNECTIONMULTIPLEXER( |
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409 "CNcmSession::HandleIcmpErrorL - ICMP ERROR VALID" ) |
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410 |
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411 iStreams[ind]->WrapperL()->GetAddresses( |
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412 aLocalAddress, aRemoteAddress ); |
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413 return; |
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414 } |
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415 } |
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416 |
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417 __CONNECTIONMULTIPLEXER( |
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418 "CNcmSession::HandleIcmpErrorL - ICMP ERROR NOT VALID" ) |
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419 User::Leave( KErrNotFound ); |
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420 } |
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421 |
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422 |
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423 // --------------------------------------------------------------------------- |
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424 // CNcmSession::Initialized |
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425 // --------------------------------------------------------------------------- |
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426 // |
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427 TBool CNcmSession::Initialized() const |
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428 { |
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429 return iInitialized; |
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430 } |
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431 |
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432 |
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433 // --------------------------------------------------------------------------- |
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434 // CNcmSession::ResolveDestinationAddressL |
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435 // --------------------------------------------------------------------------- |
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436 // |
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437 void CNcmSession::ResolveDestinationAddressL( const TDesC8& aAddress, |
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438 TUint aPort, TInetAddr& aResult ) |
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439 { |
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440 __CONNECTIONMULTIPLEXER_STR( |
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441 "CNcmSession::ResolveDestinationAddressL, FQDN", aAddress ) |
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442 |
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443 HBufC* addrBuf = HBufC::NewLC( aAddress.Length() ); |
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444 TPtr addrPtr( addrBuf->Des() ); |
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445 User::LeaveIfError( |
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446 CnvUtfConverter::ConvertToUnicodeFromUtf8( addrPtr, aAddress ) ); |
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447 |
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448 RHostResolver resolver; |
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449 CleanupClosePushL( resolver ); |
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450 User::LeaveIfError( resolver.Open( |
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451 iSocketServ, KAfInet, KProtocolInetUdp, iConnection ) ); |
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452 TNameEntry entry; |
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453 User::LeaveIfError( resolver.GetByName( *addrBuf, entry ) ); |
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454 |
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455 CleanupStack::PopAndDestroy( 2, addrBuf ); |
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456 |
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457 aResult = TInetAddr::Cast( entry().iAddr ); |
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458 aResult.SetPort( aPort ); |
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459 |
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460 __CONNECTIONMULTIPLEXER_ADDRLOG( |
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461 "CNcmSession::ResolveDestinationAddressL, IP", aResult ) |
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462 } |
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463 |
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464 |
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465 // --------------------------------------------------------------------------- |
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466 // CNcmSession::LocalIPv4Address |
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467 // --------------------------------------------------------------------------- |
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468 // |
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469 TInetAddr& CNcmSession::LocalIPv4Address() |
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470 { |
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471 return iIpv4Addr; |
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472 } |
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473 |
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474 |
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475 // --------------------------------------------------------------------------- |
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476 // CNcmSession::LocalIPv6Address |
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477 // --------------------------------------------------------------------------- |
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478 // |
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479 TInetAddr& CNcmSession::LocalIPv6Address() |
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480 { |
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481 return iIpv6Addr; |
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482 } |