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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include "mcenatstateconnected.h" |
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21 #include "mcenatsipsession.h" |
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22 #include "mceactionset.h" |
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23 #include "mceclientserver.h" |
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24 #include "mcenatevents.h" |
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25 #include "mcenatactions.h" |
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26 #include "mcesrvlogs.h" |
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27 |
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28 // ----------------------------------------------------------------------------- |
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29 // CMceNatStateConnected::CMceNatStateConnected |
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30 // ----------------------------------------------------------------------------- |
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31 // |
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32 CMceNatStateConnected::CMceNatStateConnected() |
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33 { |
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34 } |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CMceNatStateConnected::~CMceNatStateConnected |
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38 // ----------------------------------------------------------------------------- |
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39 // |
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40 CMceNatStateConnected::~CMceNatStateConnected() |
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41 { |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // CMceNatStateConnected::Accept |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 |
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49 TBool CMceNatStateConnected::Accept( TMceNatStateTransitionEvent& aEvent ) |
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50 { |
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51 switch ( aEvent.NatCode() ) |
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52 { |
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53 case EMceNatUpdated: |
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54 { |
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55 return aEvent.Session().DoesMediaManagerNeedToNegotiate( NULL ); |
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56 } |
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57 case EMceNatHandleSIP: |
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58 { |
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59 return ( EMceInvite == aEvent.Code() || |
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60 EMcePrack == aEvent.Code() || |
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61 ( EMceAck == aEvent.Code() && |
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62 MceSip::HasContent( aEvent.Session().Request() ) ) ); |
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63 } |
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64 |
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65 case EMceNatUpdateSdp: |
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66 case EMceNatError: |
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67 case EMceNatICMPError: |
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68 { |
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69 return ETrue; |
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70 } |
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71 default: |
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72 { |
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73 return EFalse; |
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74 } |
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75 } |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CMceNatStateConnected::EntryL |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void CMceNatStateConnected::EntryL( TMceNatStateTransitionEvent& aEvent ) |
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83 { |
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84 MCESRV_DEBUG( "*** CMceNatStateConnected::EntryL, Entry" ); |
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85 |
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86 if ( EMceNatSync == aEvent.NatCode() || |
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87 EMceNatOffer == aEvent.NatCode() ) |
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88 { |
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89 // NOP |
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90 } |
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91 else |
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92 { |
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93 aEvent.NatActions().Continue(); |
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94 } |
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95 |
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96 MCESRV_DEBUG( "*** CMceNatStateConnected::EntryL, Exit" ); |
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97 } |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // CMceNatStateConnected::ExitL |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 void CMceNatStateConnected::ExitL( TMceNatStateTransitionEvent& aEvent ) |
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104 { |
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105 MCESRV_DEBUG( "*** CMceNatStateConnected::ExitL, Entry" ); |
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106 |
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107 switch ( aEvent.NatCode() ) |
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108 { |
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109 case EMceNatError: |
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110 case EMceNatICMPError: |
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111 { |
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112 ExitErrorL( aEvent ); |
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113 break; |
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114 } |
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115 case EMceNatUpdateSdp: |
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116 { |
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117 ExitUpdateSdpL( aEvent ); |
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118 break; |
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119 } |
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120 |
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121 case EMceNatHandleSIP: |
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122 { |
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123 if ( EMceInvite == aEvent.Code() ) |
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124 { |
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125 ExitHandleInviteL( aEvent ); |
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126 } |
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127 else |
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128 { |
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129 ExitDefaultL( aEvent ); |
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130 } |
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131 break; |
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132 } |
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133 |
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134 default: |
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135 { |
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136 ExitDefaultL( aEvent ); |
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137 break; |
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138 } |
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139 } |
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140 |
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141 MCESRV_DEBUG( "*** CMceNatStateConnected::ExitL, Exit" ); |
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142 } |
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143 |
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144 // ----------------------------------------------------------------------------- |
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145 // CMceNatStateConnected::ExitErrorL |
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146 // ----------------------------------------------------------------------------- |
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147 // |
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148 void CMceNatStateConnected::ExitErrorL( TMceNatStateTransitionEvent& aEvent ) |
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149 { |
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150 TMceStateIndex sipState = aEvent.Session().CurrentState().Id(); |
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151 |
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152 if (( aEvent.NatCode() == EMceNatICMPError && |
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153 KMceStateEstablished == sipState ) || |
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154 aEvent.NatCode() == EMceNatError ) |
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155 |
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156 { |
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157 aEvent.Session().Actions().ClientErrorOccured( aEvent.ParamStatus() ); |
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158 User::Leave( aEvent.ParamStatus() ); |
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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 // ----------------------------------------------------------------------------- |
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164 // CMceNatStateConnected::ExitUpdateSdpL |
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165 // ----------------------------------------------------------------------------- |
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166 // |
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167 void CMceNatStateConnected::ExitUpdateSdpL( |
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168 TMceNatStateTransitionEvent& /*aEvent*/ ) |
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169 { |
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170 // NAT has resulted in different transport address than initial O/A |
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171 // exchange suggested, hence re-INVITE must be sent. |
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172 |
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173 //CMceSipSession& session = aEvent.Session(); |
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174 //CSdpDocument* previous = session.Offer(); |
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175 //aEvent.Session().SetOffer( aEvent.Document() ); |
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176 //aEvent.NatActions().SetOffered( KMceNatOfferSdp ); |
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177 //aEvent.NatActions().SdpCleanup( previous, session.Offer() ); |
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178 //aEvent.Session().Actions().SendInviteL(); |
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179 } |
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180 |
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181 // ----------------------------------------------------------------------------- |
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182 // CMceNatStateConnected::ExitHandleInviteL |
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183 // ----------------------------------------------------------------------------- |
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184 // |
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185 void CMceNatStateConnected::ExitHandleInviteL( |
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186 TMceNatStateTransitionEvent& aEvent ) |
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187 { |
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188 if ( !MceSip::HasContent( aEvent.Session().Request() ) ) |
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189 { |
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190 // TBD: Restart of ICE |
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191 } |
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192 |
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193 // Not consumed, done by SIP state machine |
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194 aEvent.NatActions().Continue(); |
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195 } |
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196 |
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197 // ----------------------------------------------------------------------------- |
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198 // CMceNatStateConnected::ExitDefaultL |
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199 // ----------------------------------------------------------------------------- |
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200 // |
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201 void CMceNatStateConnected::ExitDefaultL( TMceNatStateTransitionEvent& aEvent ) |
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202 { |
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203 |
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204 TMceStateIndex sipState = aEvent.Session().CurrentState().Id(); |
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205 |
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206 if ( KMceStateServerEstablishing == sipState || |
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207 KMceStateUpdating == sipState || |
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208 ( aEvent.NatCode() == EMceNatUpdated && |
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209 KMceStateAcknowledgementRequired == sipState )) //i.e. DecodeL |
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210 { |
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211 // MT state loop |
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212 //Check if the invite package received includes corresponding SDP; |
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213 if ( !MceSip::HasContent( aEvent.Session().Request() ) ) |
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214 { |
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215 //no SDP, so certify to Pull mode Re-INVITE |
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216 aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateOffer ); |
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217 } |
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218 else |
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219 { |
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220 //including SDP, so certify to normal INVITE request |
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221 aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateAnswer ); |
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222 } |
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223 } |
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224 |
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225 else if ( aEvent.NatCode() == EMceNatUpdated && |
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226 ( KMceStateEstablished == sipState || |
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227 KMceStateConfirming == sipState || |
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228 KMceStateClientEstablishing == sipState ) || |
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229 ( aEvent.ParamStatus() == KMceReady ) && |
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230 ( aEvent.Code() == EMceProvisionalResponse ) ) |
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231 |
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232 //i.e. UpdateL |
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233 { |
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234 // MO state loop |
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235 aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateOffer ); |
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236 } |
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237 |
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238 else |
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239 { |
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240 aEvent.NatActions().Continue(); |
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241 } |
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242 } |
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243 |
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244 // End of File |