1 /* |
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2 * Copyright (c) 2009-2010 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: NAT/Firewall handler for VoIP XML processor |
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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 <centralrepository.h> |
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20 #include <unsafprotocolsinternalcrkeys.h> |
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21 |
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22 #include "voipxmlutils.h" |
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23 #include "voipxmlnatfwhandler.h" |
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24 #include "voipxmlprocessorlogger.h" |
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25 //#include "voipxmlprocessordefaults.h" |
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26 |
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27 // --------------------------------------------------------------------------- |
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28 // CVoipXmlNatFwHandler::CVoipXmlNatFwHandler |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 CVoipXmlNatFwHandler::CVoipXmlNatFwHandler() |
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32 { |
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33 } |
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34 |
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35 // --------------------------------------------------------------------------- |
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36 // CVoipXmlNatFwHandler::NewL |
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37 // --------------------------------------------------------------------------- |
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38 // |
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39 CVoipXmlNatFwHandler* CVoipXmlNatFwHandler::NewL() |
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40 { |
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41 CVoipXmlNatFwHandler* self = new ( ELeave ) CVoipXmlNatFwHandler; |
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42 CleanupStack::PushL( self ); |
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43 self->ConstructL(); |
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44 CleanupStack::Pop( self ); |
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45 return self; |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // CVoipXmlNatFwHandler::ConstructL |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 void CVoipXmlNatFwHandler::ConstructL() |
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53 { |
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54 iDomain = HBufC8::NewL( KMaxNodeValueLength ); |
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55 iStunSrvAddr = HBufC8::NewL( KMaxNodeValueLength ); |
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56 iStunSrvUsername = HBufC8::NewL( KMaxNodeValueLength ); |
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57 iStunSrvPassword = HBufC8::NewL( KMaxNodeValueLength ); |
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58 iNatProtocol = HBufC8::NewL( KMaxNodeValueLength ); |
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59 iNatProtocol->Des().Copy( KDefaultNatProtocol ); |
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60 iStunSrvPort = KDefaultStunServerPort; |
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61 iTcpRefreshInterval = KDefaultTcpRefreshInterval; |
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62 iUdpRefreshInterval = KDefaultUdpRefreshInterval; |
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63 iStartPortRange = KDefaultStartPortRange; |
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64 iEndPortRange = KDefaultEndPortRange; |
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65 iCurrentAdditionalStunServer.iStunSrvPort = KDefaultStunServerPort; |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // CVoipXmlNatFwHandler::~CVoipXmlNatFwHandler |
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70 // --------------------------------------------------------------------------- |
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71 // |
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72 CVoipXmlNatFwHandler::~CVoipXmlNatFwHandler() |
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73 { |
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74 delete iDomain; |
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75 delete iStunSrvAddr; |
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76 delete iStunSrvUsername; |
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77 delete iStunSrvPassword; |
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78 delete iNatProtocol; |
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79 iAdditionalStunServers.ResetAndDestroy(); |
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80 iAdditionalStunServers.Close(); |
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81 } |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // Sets a NAT/Firewall setting. |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 void CVoipXmlNatFwHandler::SetSetting( TInt aType, TInt aParam, |
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88 const TDesC8& aValue ) |
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89 { |
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90 // Ignore too long descriptors. |
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91 if ( KMaxNodeValueLength < aValue.Length() ) |
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92 { |
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93 return; |
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94 } |
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95 |
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96 TInt intVal( KErrNotFound ); |
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97 switch ( aParam ) |
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98 { |
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99 case EDomain: |
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100 { |
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101 iDomain->Des().Copy( aValue ); |
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102 iSettingsSet = ETrue; |
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103 break; |
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104 } |
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105 case EUri: |
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106 { |
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107 //lint -e{960} No need for else statement here |
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108 if ( ENatFw == aType ) |
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109 { |
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110 iStunSrvAddr->Des().Copy( aValue ); |
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111 iSettingsSet = ETrue; |
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112 } |
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113 else if ( EAdditionalStun == aType ) |
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114 { |
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115 iCurrentAdditionalStunServer.iStunSrvAddr.Copy( aValue ); |
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116 iSettingsSet = ETrue; |
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117 } |
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118 break; |
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119 } |
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120 case EPort: |
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121 { |
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122 //lint -e{960} No need for else statement here |
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123 if ( ENatFw == aType && KErrNone == VoipXmlUtils::Des8ToInt( |
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124 aValue, intVal ) ) |
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125 { |
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126 iStunSrvPort = intVal; |
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127 iSettingsSet = ETrue; |
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128 } |
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129 else if ( EAdditionalStun == aType && |
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130 KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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131 { |
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132 iCurrentAdditionalStunServer.iStunSrvPort = intVal; |
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133 iSettingsSet = ETrue; |
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134 } |
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135 break; |
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136 } |
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137 case ETcpRefreshInterval: |
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138 { |
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139 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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140 { |
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141 iTcpRefreshInterval = intVal; |
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142 iSettingsSet = ETrue; |
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143 } |
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144 break; |
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145 } |
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146 case EUdpRefreshInterval: |
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147 { |
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148 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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149 { |
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150 iUdpRefreshInterval = intVal; |
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151 iSettingsSet = ETrue; |
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152 } |
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153 break; |
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154 } |
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155 case ECrlfRefresh: |
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156 { |
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157 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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158 { |
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159 iCrlfRefresh = intVal; |
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160 iSettingsSet = ETrue; |
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161 } |
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162 break; |
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163 } |
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164 case EUsername: |
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165 { |
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166 //lint -e{960} No need for else statement here |
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167 if ( ENatFw == aType ) |
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168 { |
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169 iStunSrvUsername->Des().Copy( aValue ); |
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170 iSettingsSet = ETrue; |
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171 } |
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172 else if ( EAdditionalStun == aType ) |
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173 { |
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174 iCurrentAdditionalStunServer.iStunSrvUsername.Copy( aValue ); |
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175 iSettingsSet = ETrue; |
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176 } |
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177 break; |
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178 } |
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179 case EPassword: |
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180 { |
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181 //lint -e{960} No need for else statement here |
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182 if ( ENatFw == aType ) |
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183 { |
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184 iStunSrvPassword->Des().Copy( aValue ); |
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185 iSettingsSet = ETrue; |
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186 } |
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187 else if ( EAdditionalStun == aType ) |
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188 { |
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189 iCurrentAdditionalStunServer.iStunSrvPassword.Copy( aValue ); |
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190 iSettingsSet = ETrue; |
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191 } |
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192 break; |
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193 } |
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194 case EStunSharedSecret: |
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195 { |
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196 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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197 { |
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198 iStunSharedSecret = intVal; |
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199 iSettingsSet = ETrue; |
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200 } |
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201 break; |
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202 } |
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203 case EStartPort: |
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204 { |
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205 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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206 { |
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207 iStartPortRange = intVal; |
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208 iSettingsSet = ETrue; |
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209 } |
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210 break; |
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211 } |
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212 case EEndPort: |
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213 { |
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214 if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, intVal ) ) |
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215 { |
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216 iEndPortRange = intVal; |
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217 iSettingsSet = ETrue; |
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218 } |
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219 break; |
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220 } |
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221 case EType: |
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222 { |
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223 iNatProtocol->Des().Copy( aValue ); |
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224 break; |
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225 } |
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226 default: |
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227 break; |
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228 } |
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229 } |
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230 |
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231 // --------------------------------------------------------------------------- |
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232 // Stores settings to Central Repository. |
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233 // --------------------------------------------------------------------------- |
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234 // |
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235 TInt CVoipXmlNatFwHandler::StoreSettings() |
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236 { |
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237 if ( !iSettingsSet ) |
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238 { |
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239 // No settings to be stored => method not supported. |
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240 return KErrNotSupported; |
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241 } |
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242 TRAPD( err, StoreSettingsL() ); |
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243 if ( KErrNone != err ) |
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244 { |
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245 err = KErrCompletion; |
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246 } |
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247 return err; |
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248 } |
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249 |
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250 // --------------------------------------------------------------------------- |
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251 // Appends currently modified additional STUN server to internal array. |
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252 // --------------------------------------------------------------------------- |
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253 // |
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254 void CVoipXmlNatFwHandler::SettingsEnd( TInt aType ) |
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255 { |
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256 if ( EAdditionalStun == aType ) |
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257 { |
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258 TAdditionalStun* temp = new TAdditionalStun; |
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259 temp->iStunSrvAddr.Copy( iCurrentAdditionalStunServer.iStunSrvAddr ); |
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260 temp->iStunSrvPort = iCurrentAdditionalStunServer.iStunSrvPort; |
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261 temp->iStunSrvUsername.Copy( |
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262 iCurrentAdditionalStunServer.iStunSrvUsername ); |
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263 temp->iStunSrvPassword.Copy( |
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264 iCurrentAdditionalStunServer.iStunSrvPassword ); |
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265 iAdditionalStunServers.Append( temp ); |
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266 iCurrentAdditionalStunServer.iStunSrvAddr.Copy( KNullDesC8 ); |
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267 iCurrentAdditionalStunServer.iStunSrvPort = KDefaultStunServerPort; |
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268 iCurrentAdditionalStunServer.iStunSrvUsername.Copy( KNullDesC8 ); |
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269 iCurrentAdditionalStunServer.iStunSrvPassword.Copy( KNullDesC8 ); |
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270 } |
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271 } |
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272 |
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273 // --------------------------------------------------------------------------- |
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274 // Commits Central Repository storage. |
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275 // --------------------------------------------------------------------------- |
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276 // |
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277 void CVoipXmlNatFwHandler::StoreSettingsL() |
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278 { |
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279 CRepository* rep = CRepository::NewLC( KCRUidUNSAFProtocols ); // CS:1 |
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280 |
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281 RArray<TUint32> keys; |
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282 CleanupClosePushL( keys ); // CS:2 |
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283 |
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284 // Get next free Domain key. |
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285 rep->FindL( KUNSAFProtocolsDomainMask, |
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286 KUNSAFProtocolsFieldTypeMask, keys ); |
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287 TInt keyCount = keys.Count(); |
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288 TInt tmp = 0; |
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289 if ( !keyCount ) |
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290 { |
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291 tmp = KUNSAFProtocolsDomainTableMask; |
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292 } |
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293 else |
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294 { |
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295 tmp = keys[keyCount - 1] + 1; |
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296 } |
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297 |
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298 rep->FindEqL( KUNSAFProtocolsDomainMask, KUNSAFProtocolsFieldTypeMask, |
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299 iDomain->Des(), keys ); |
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300 if ( keys.Count() ) |
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301 { |
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302 tmp = keys[0]; |
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303 } |
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304 |
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305 TUint32 currentKey = tmp|KUNSAFProtocolsDomainMask; |
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306 currentKey &= KUNSAFProtocolsKeyMask; |
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307 |
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308 TUint32 currentDomainKey = tmp|KUNSAFProtocolsFieldTypeMask; |
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309 currentDomainKey ^= KUNSAFProtocolsFieldTypeMask; |
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310 |
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311 TUint32 stunKey = KUNSAFProtocolsSubTableFieldTypeMask; |
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312 stunKey ^= KUNSAFProtocolsSubTableFieldTypeMask; |
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313 stunKey |= currentDomainKey; |
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314 |
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315 // Delete all existing additional STUN servers if there are any. |
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316 RArray<TUint32> stunKeys; |
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317 CleanupClosePushL( stunKeys ); // CS:3 |
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318 TInt err = rep->FindL( |
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319 currentDomainKey|KUNSAFProtocolsSTUNAddressMask, |
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320 KUNSAFProtocolsSubTableFieldTypeMask, stunKeys ); |
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321 const TInt stunKeyCount = stunKeys.Count(); |
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322 for ( TInt counter = 0 ; counter < stunKeyCount; counter++ ) |
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323 { |
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324 TUint32 key = KUNSAFProtocolsSTUNAddressMask^ |
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325 stunKeys[counter]; |
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326 rep->Delete( key|KUNSAFProtocolsSTUNAddressMask ); |
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327 rep->Delete( key|KUNSAFProtocolsSTUNPortMask ); |
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328 rep->Delete( key|KUNSAFProtocolsSTUNUsernameMask ); |
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329 rep->Delete( key|KUNSAFProtocolsSTUNPasswordMask ); |
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330 } |
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331 CleanupStack::PopAndDestroy( &stunKeys ); // CS:2 |
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332 |
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333 // Set new keys. |
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334 |
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335 // Domain |
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336 User::LeaveIfError( rep->Set( currentKey|KUNSAFProtocolsDomainMask, |
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337 iDomain->Des() )); |
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338 |
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339 // STUN server address. |
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340 User::LeaveIfError( rep->Set( |
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341 KUNSAFProtocolsSTUNServerMask|currentDomainKey, |
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342 iStunSrvAddr->Des() ) ); |
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343 // Set the same value into STUN server table. |
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344 User::LeaveIfError( rep->Set( |
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345 KUNSAFProtocolsSTUNAddressMask|stunKey, |
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346 iStunSrvAddr->Des() ) ); |
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347 |
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348 // STUN server port. |
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349 User::LeaveIfError( rep->Set( |
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350 KUNSAFProtocolsSTUNServerPortMask|currentDomainKey, |
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351 iStunSrvPort ) ); |
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352 // Set the same value into STUN server table. |
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353 User::LeaveIfError( rep->Set( |
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354 KUNSAFProtocolsSTUNPortMask|stunKey, |
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355 iStunSrvPort ) ); |
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356 |
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357 // TCP refresh interval. |
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358 User::LeaveIfError( rep->Set( |
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359 KUNSAFProtocolsDomainIntervalTCPMask|currentDomainKey, |
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360 iTcpRefreshInterval ) ); |
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361 |
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362 // UDP refresh interval. |
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363 User::LeaveIfError( rep->Set( |
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364 KUNSAFProtocolsDomainIntervalUDPMask|currentDomainKey, |
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365 iUdpRefreshInterval ) ); |
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366 |
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367 // CRLF refresh. |
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368 User::LeaveIfError( rep->Set( |
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369 KUNSAFProtocolsDomainEnableCRLFRefresh|currentDomainKey, |
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370 iCrlfRefresh ) ); |
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371 |
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372 // STUN server username |
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373 User::LeaveIfError( rep->Set( |
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374 KUNSAFProtocolsSTUNUsernameMask|stunKey, |
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375 iStunSrvUsername->Des() ) ); |
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376 |
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377 // STUN server password |
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378 User::LeaveIfError( rep->Set( |
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379 KUNSAFProtocolsSTUNPasswordMask|stunKey, |
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380 iStunSrvPassword->Des() ) ); |
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381 |
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382 // STUN shared secret |
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383 User::LeaveIfError( rep->Set( currentDomainKey| |
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384 KUNSAFProtocolsDomainSharedSecretNotSupported, |
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385 !iStunSharedSecret ) ); |
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386 |
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387 // Start port range |
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388 User::LeaveIfError( rep->Set( |
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389 currentDomainKey|KUNSAFProtocolsPortPoolStartPortMask, |
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390 iStartPortRange ) ); |
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391 |
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392 // End port range. |
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393 User::LeaveIfError( rep->Set( |
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394 currentDomainKey|KUNSAFProtocolsPortPoolEndPortMask, |
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395 iEndPortRange ) ); |
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396 |
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397 // Used NAT protocol. |
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398 User::LeaveIfError( rep->Set( |
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399 currentDomainKey|KUNSAFProtocolsUsedNATProtocolMask, |
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400 iNatProtocol->Des() ) ); |
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401 |
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402 // ============================== |
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403 // Additional STUN servers |
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404 // ============================== |
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405 // |
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406 const TInt count = iAdditionalStunServers.Count(); |
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407 for ( TInt counter = 0; counter < count; counter++ ) |
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408 { |
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409 stunKey |= KUNSAFProtocolsSubTableFieldTypeMask; |
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410 stunKey++; |
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411 stunKey |= KUNSAFProtocolsSubTableFieldTypeMask; |
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412 stunKey ^= KUNSAFProtocolsSubTableFieldTypeMask; |
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413 stunKey |= currentDomainKey; |
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414 |
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415 // STUNServerAddress |
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416 User::LeaveIfError( rep->Create( |
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417 KUNSAFProtocolsSTUNAddressMask|stunKey, |
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418 iAdditionalStunServers[counter]->iStunSrvAddr ) ); |
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419 |
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420 // STUNServerPort |
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421 User::LeaveIfError( rep->Create( |
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422 KUNSAFProtocolsSTUNPortMask|stunKey, |
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423 iAdditionalStunServers[counter]->iStunSrvPort ) ); |
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424 |
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425 // STUNServerUsername |
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426 User::LeaveIfError( rep->Create( |
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427 KUNSAFProtocolsSTUNUsernameMask|stunKey, |
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428 iAdditionalStunServers[counter]->iStunSrvUsername ) ); |
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429 |
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430 // STUNServerPassword |
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431 User::LeaveIfError( rep->Create( |
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432 KUNSAFProtocolsSTUNPasswordMask|stunKey, |
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433 iAdditionalStunServers[counter]->iStunSrvPassword ) ); |
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434 } |
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435 |
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436 // &keys, rep |
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437 CleanupStack::PopAndDestroy( 2, rep ); // CS:0 |
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438 } |
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439 |
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440 // End of file. |
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