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1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : SdpConnectionField.cpp |
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15 // Part of : SDP Codec |
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16 // Version : 1.0 |
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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 |
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22 #include <in_sock.h> |
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23 #include <s32strm.h> |
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24 #include <stringpool.h> |
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25 #include "SdpConnectionField.h" |
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26 #include "sdpcodecstringconstants.h" |
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27 #include "SdpCodecConstants.h" |
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28 #include "SdpCodecStringPool.h" |
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29 #include "SdpUtil.h" |
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30 #include "SdpCodecErr.h" |
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31 #include "SDPCodec.pan" |
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32 #include "_sdpdefs.h" |
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33 #include "uriutils.h" |
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34 |
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35 // LOCAL CONSTANTS |
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36 const TInt KHeaderIndex = 0; |
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37 const TInt KNetworkTypeIndex = 1; |
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38 const TInt KAddressTypeIndex = 2; |
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39 const TInt KAddressIndex = 3; |
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40 const TInt KTokenCount = 4; |
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41 const TInt KMaxAddressLength = 256; |
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42 const TUint KMaxIPDesLength = 39; |
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43 _LIT16(KWildAddr, "0.0.0.0"); |
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44 _LIT16(KWildAddrIPv6, "::"); |
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45 |
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46 |
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47 // ============================ MEMBER FUNCTIONS =============================== |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CSdpConnectionField::CSdpConnectionField |
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51 // C++ default constructor can NOT contain any code, that |
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52 // might leave. |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CSdpConnectionField::CSdpConnectionField() : |
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56 iTTL( KErrNotFound ), |
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57 iNumOfAddress( KDefaultNumOfAddress ) |
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58 { |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CSdpConnectionField::ConstructL |
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63 // Symbian 2nd phase constructor can leave. |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 void CSdpConnectionField::ConstructL( |
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67 const TDesC8& aText ) |
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68 { |
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69 // aText should be in format |
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70 // c=<network type> <address type> <connection address> |
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71 iPool = SdpCodecStringPool::StringPoolL(); |
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72 |
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73 RArray<TPtrC8> array = |
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74 SdpUtil::GetElementsFromLineL( aText, KErrSdpCodecConnectionField ); |
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75 CleanupClosePushL( array ); |
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76 |
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77 if ( array.Count() != KTokenCount ) |
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78 { |
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79 User::Leave( KErrSdpCodecConnectionField ); |
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80 } |
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81 |
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82 RStringF origHeader = iPool.StringF( SdpCodecStringConstants::EConnection, |
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83 SdpCodecStringConstants::Table ); |
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84 if ( origHeader.DesC().CompareF( array[KHeaderIndex] ) != 0 ) |
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85 { |
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86 // Header didn't match |
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87 User::Leave( KErrSdpCodecConnectionField ); |
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88 } |
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89 |
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90 // <network type> |
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91 CopyNetTypeL( array[KNetworkTypeIndex] ); |
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92 |
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93 // <address type> |
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94 CopyAddressTypeL( array[KAddressTypeIndex] ); |
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95 |
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96 // <address> |
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97 CopyAddressL( array[KAddressIndex], iPool ); |
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98 |
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99 CleanupStack::PopAndDestroy(); // array |
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100 } |
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101 |
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102 // ----------------------------------------------------------------------------- |
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103 // CSdpConnectionField::ConstructL |
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104 // Symbian 2nd phase constructor can leave. |
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105 // ----------------------------------------------------------------------------- |
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106 // |
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107 void CSdpConnectionField::ConstructL( |
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108 const TInetAddr& aAddress, |
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109 TInt aTTL, |
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110 TUint aNumOfAddress ) |
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111 { |
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112 __ASSERT_ALWAYS( IsValidAddress(aAddress, aTTL, aNumOfAddress) == KErrNone, |
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113 User::Leave( KErrSdpCodecConnectionField ) ); |
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114 |
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115 iPool = SdpCodecStringPool::StringPoolL(); |
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116 TBuf<KMaxIPDesLength> addr; |
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117 //If aAddress is IPv4-Mapped IPv6,the result of Output is IPv4 |
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118 aAddress.Output( addr ); |
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119 |
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120 // Copy address |
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121 iAddress = HBufC8::NewL( addr.Length() ); |
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122 iAddress->Des().Copy( addr ); |
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123 |
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124 // TTL |
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125 iTTL = aTTL; |
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126 // Num of addresses |
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127 iNumOfAddress = aNumOfAddress; |
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128 // Network type |
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129 iNetType = iPool.StringF( SdpCodecStringConstants::ENetType, |
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130 SdpCodecStringConstants::Table ).Copy(); |
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131 // Address type |
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132 if ( UriUtils::HostType( addr ) == UriUtils::EIPv4Host ) |
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133 { |
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134 //addresstype for IPv4 |
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135 iAddressType = iPool.StringF( SdpCodecStringConstants::EAddressTypeIP4, |
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136 SdpCodecStringConstants::Table ).Copy(); |
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137 } |
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138 else if ( UriUtils::HostType( addr ) == UriUtils::EIPv6Host ) |
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139 { |
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140 //addresstype IPv6 |
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141 iAddressType = iPool.StringF( SdpCodecStringConstants::EAddressType, |
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142 SdpCodecStringConstants::Table ).Copy(); |
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143 } |
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144 else |
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145 { |
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146 User::Leave(KErrArgument); |
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147 } |
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148 |
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149 __TEST_INVARIANT; |
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150 } |
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151 |
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152 // ----------------------------------------------------------------------------- |
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153 // CSdpConnectionField::ConstructL |
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154 // Symbian 2nd phase constructor can leave. |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 void CSdpConnectionField::ConstructL( |
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158 RStringF aNetType, |
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159 RStringF aAddressType, |
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160 const TDesC8& aAddress ) |
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161 { |
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162 iPool = SdpCodecStringPool::StringPoolL(); |
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163 |
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164 // Network type |
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165 CopyNetTypeL( aNetType.DesC() ); |
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166 |
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167 // Address type |
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168 CopyAddressTypeL( aAddressType.DesC() ); |
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169 |
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170 // Address + TTL + numOfAddress |
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171 CopyAddressL( aAddress, aNetType.Pool() ); |
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172 } |
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173 |
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174 // ----------------------------------------------------------------------------- |
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175 // CSdpConnectionField::DecodeL |
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176 // Two-phased constructor |
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177 // ----------------------------------------------------------------------------- |
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178 // |
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179 EXPORT_C CSdpConnectionField* CSdpConnectionField::DecodeL( |
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180 const TDesC8& aText ) |
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181 { |
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182 CSdpConnectionField* obj = CSdpConnectionField::DecodeLC( aText ); |
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183 CleanupStack::Pop(); |
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184 return obj; |
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185 } |
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186 |
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187 // ----------------------------------------------------------------------------- |
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188 // CSdpConnectionField::DecodeLC |
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189 // Two-phased constructor |
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190 // ----------------------------------------------------------------------------- |
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191 // |
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192 EXPORT_C CSdpConnectionField* CSdpConnectionField::DecodeLC( |
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193 const TDesC8& aText ) |
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194 { |
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195 CSdpConnectionField* obj = new ( ELeave ) CSdpConnectionField; |
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196 CleanupStack::PushL( obj ); |
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197 obj->ConstructL( aText ); |
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198 return obj; |
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199 } |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // CSdpConnectionField::NewL |
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203 // Two-phased constructor |
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204 // ----------------------------------------------------------------------------- |
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205 // |
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206 EXPORT_C CSdpConnectionField* CSdpConnectionField::NewL( |
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207 const TInetAddr& aAddress, |
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208 TInt aTTL, |
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209 TUint aNumOfAddress ) |
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210 { |
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211 CSdpConnectionField* obj = CSdpConnectionField::NewLC( |
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212 aAddress, aTTL, aNumOfAddress ); |
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213 CleanupStack::Pop(); |
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214 return obj; |
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215 } |
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216 // ----------------------------------------------------------------------------- |
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217 // CSdpConnectionField::NewLC |
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218 // Two-phased constructor |
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219 // ----------------------------------------------------------------------------- |
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220 // |
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221 EXPORT_C CSdpConnectionField* CSdpConnectionField::NewLC( |
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222 const TInetAddr& aAddress, |
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223 TInt aTTL, |
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224 TUint aNumOfAddress ) |
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225 { |
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226 CSdpConnectionField* obj = new ( ELeave ) CSdpConnectionField; |
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227 CleanupStack::PushL( obj ); |
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228 obj->ConstructL( aAddress, aTTL, aNumOfAddress ); |
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229 return obj; |
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230 } |
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231 |
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232 // ----------------------------------------------------------------------------- |
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233 // CSdpConnectionField::NewL |
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234 // Two-phased constructor |
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235 // ----------------------------------------------------------------------------- |
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236 // |
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237 EXPORT_C CSdpConnectionField* CSdpConnectionField::NewL( |
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238 RStringF aNetType, |
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239 RStringF aAddressType, |
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240 const TDesC8& aAddress ) |
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241 { |
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242 CSdpConnectionField* obj = CSdpConnectionField::NewLC( |
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243 aNetType, aAddressType, aAddress ); |
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244 CleanupStack::Pop(); |
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245 return obj; |
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246 } |
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247 |
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248 // ----------------------------------------------------------------------------- |
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249 // CSdpConnectionField::NewLC |
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250 // Two-phased constructor |
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251 // ----------------------------------------------------------------------------- |
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252 // |
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253 EXPORT_C CSdpConnectionField* CSdpConnectionField::NewLC( |
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254 RStringF aNetType, |
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255 RStringF aAddressType, |
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256 const TDesC8& aAddress ) |
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257 { |
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258 CSdpConnectionField* obj = new ( ELeave ) CSdpConnectionField; |
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259 CleanupStack::PushL( obj ); |
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260 obj->ConstructL( aNetType, aAddressType, aAddress ); |
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261 return obj; |
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262 } |
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263 |
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264 // Destructor |
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265 EXPORT_C CSdpConnectionField::~CSdpConnectionField() |
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266 { |
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267 delete iAddress; |
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268 iNetType.Close(); |
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269 iAddressType.Close(); |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // CSdpConnectionField::EncodeL |
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274 // Writes attributes in proper format to the stream |
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275 // ----------------------------------------------------------------------------- |
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276 // |
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277 EXPORT_C void CSdpConnectionField::EncodeL( |
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278 RWriteStream& aStream ) const |
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279 { |
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280 __TEST_INVARIANT; |
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281 TBuf8<20> number; // Is enough for addr as well |
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282 |
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283 // c=<network type> <address type> <connection address> |
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284 RStringF header = iPool.StringF( SdpCodecStringConstants::EConnection, |
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285 SdpCodecStringConstants::Table ); |
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286 aStream.WriteL( header.DesC() ); |
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287 |
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288 // Network type |
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289 aStream.WriteL( iNetType.DesC() ); |
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290 aStream.WriteL( KSPStr ); |
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291 |
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292 // Address type |
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293 aStream.WriteL( iAddressType.DesC() ); |
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294 aStream.WriteL( KSPStr ); |
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295 |
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296 // Connection address |
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297 aStream.WriteL( *iAddress ); |
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298 if ( iTTL != KErrNotFound ) |
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299 { |
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300 number.Zero(); |
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301 number.Append( KSlashStr ); |
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302 number.AppendFormat( _L8("%d"), iTTL ); |
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303 aStream.WriteL( number ); |
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304 } |
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305 |
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306 if ( iNumOfAddress > 1 ) |
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307 { |
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308 number.Zero(); |
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309 number.Append( KSlashStr ); |
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310 number.AppendFormat( _L8("%u"), iNumOfAddress ); |
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311 aStream.WriteL( number ); |
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312 } |
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313 |
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314 // End-of-Line mark |
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315 aStream.WriteL( KCRLFStr ); |
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316 } |
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317 |
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318 // ----------------------------------------------------------------------------- |
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319 // CSdpConnectionField::CloneL |
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320 // Clones an exact copy of this object |
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321 // ----------------------------------------------------------------------------- |
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322 // |
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323 EXPORT_C CSdpConnectionField* CSdpConnectionField::CloneL() const |
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324 { |
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325 __TEST_INVARIANT; |
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326 |
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327 CSdpConnectionField* obj = NULL; |
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328 const TInetAddr* addr = InetAddress(); |
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329 |
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330 if ( addr ) |
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331 { |
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332 // Could be anything |
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333 obj = CSdpConnectionField::NewL( *addr, iTTL, iNumOfAddress ); |
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334 } |
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335 else |
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336 { |
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337 // Unicast FQDN address |
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338 obj = CSdpConnectionField::NewL( iNetType, iAddressType, *iAddress ); |
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339 } |
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340 |
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341 __ASSERT_DEBUG( *this == *obj, User::Panic( |
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342 KSdpCodecPanicCat, KSdpCodecPanicInternal)); |
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343 return obj; |
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344 } |
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345 |
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346 // ----------------------------------------------------------------------------- |
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347 // CSdpConnectionField::operator== |
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348 // Checks if two origin fields are equal |
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349 // ----------------------------------------------------------------------------- |
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350 // |
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351 EXPORT_C TBool CSdpConnectionField::operator== ( |
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352 const CSdpConnectionField& aObj ) const |
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353 { |
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354 __TEST_INVARIANT; |
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355 |
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356 TBool equal( EFalse ); |
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357 |
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358 if ( (*iAddress).CompareF( aObj.Address() ) == 0 && |
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359 NetType() == aObj.NetType() && |
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360 AddressType() == aObj.AddressType() && |
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361 TTLValue() == aObj.TTLValue() && |
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362 NumOfAddress() == aObj.NumOfAddress() ) |
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363 { |
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364 // All attributes match, two fields are equal |
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365 equal = ETrue; |
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366 } |
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367 |
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368 return equal; |
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369 } |
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370 |
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371 // ----------------------------------------------------------------------------- |
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372 // CSdpConnectionField::NetType |
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373 // Returns network type |
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374 // ----------------------------------------------------------------------------- |
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375 // |
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376 EXPORT_C RStringF CSdpConnectionField::NetType() const |
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377 { |
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378 __TEST_INVARIANT; |
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379 return iNetType; |
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380 } |
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381 |
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382 // ----------------------------------------------------------------------------- |
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383 // CSdpConnectionField::AddressType |
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384 // Returns address type |
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385 // ----------------------------------------------------------------------------- |
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386 // |
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387 EXPORT_C RStringF CSdpConnectionField::AddressType() const |
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388 { |
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389 __TEST_INVARIANT; |
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390 return iAddressType; |
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391 } |
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392 |
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393 // ----------------------------------------------------------------------------- |
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394 // CSdpConnectionField::InetAddress |
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395 // Returns address in TInetAddr format if possible |
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396 // ----------------------------------------------------------------------------- |
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397 // |
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398 EXPORT_C const TInetAddr* CSdpConnectionField::InetAddress() const |
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399 { |
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400 __TEST_INVARIANT; |
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401 |
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402 TInetAddr* addr = NULL; |
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403 TBuf<KMaxAddressLength> addr16; |
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404 |
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405 addr16.Copy( iAddress->Des() ); |
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406 TInt err = iInetAddress.Input( addr16 ); |
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407 |
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408 if ( err == KErrNone ) |
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409 { |
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410 addr = &iInetAddress; |
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411 } |
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412 |
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413 return addr; |
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414 } |
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415 |
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416 // ----------------------------------------------------------------------------- |
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417 // CSdpConnectionField::Address |
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418 // Returns address in TDesC8 format |
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419 // ----------------------------------------------------------------------------- |
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420 // |
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421 EXPORT_C const TDesC8& CSdpConnectionField::Address() const |
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422 { |
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423 return *iAddress; |
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424 } |
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425 |
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426 // ----------------------------------------------------------------------------- |
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427 // CSdpConnectionField::SetInetAddressL |
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428 // Sets address from TInetAddr |
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429 // ----------------------------------------------------------------------------- |
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430 // |
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431 EXPORT_C void CSdpConnectionField::SetInetAddressL( |
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432 const TInetAddr& aAddress, |
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433 TInt aTTL, |
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434 TUint aNumOfAddress ) |
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435 { |
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436 __TEST_INVARIANT; |
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437 |
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438 if ( IsValidAddress( aAddress, aTTL, aNumOfAddress ) == KErrNone ) |
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439 { |
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440 TBuf<KMaxAddressLength> addr16; |
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441 //If aAddress IPv4-Mapped IPv6, result of Output IPv4 |
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442 aAddress.Output( addr16 ); |
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443 |
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444 HBufC8* tempBuf = HBufC8::NewL( addr16.Length() ); |
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445 tempBuf->Des().Copy( addr16 ); |
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446 |
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447 SdpUtil::SetDefaultNetTypeAndAddrType( |
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448 iPool, aAddress, iNetType, iAddressType ); |
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449 if(aAddress.Address() && aAddress.IsV4Mapped()) |
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450 { |
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451 iAddressType.Close(); |
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452 iAddressType = iPool.StringF( SdpCodecStringConstants::EAddressTypeIP4, |
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453 SdpCodecStringConstants::Table ).Copy(); |
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454 } |
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455 // Set address |
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456 delete iAddress; |
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457 iAddress = tempBuf; |
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458 // Set attributes for address |
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459 iTTL = aTTL; |
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460 iNumOfAddress = aNumOfAddress; |
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461 } |
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462 else |
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463 { |
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464 User::Leave( KErrSdpCodecConnectionField ); |
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465 } |
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466 |
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467 __TEST_INVARIANT; |
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468 } |
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469 |
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470 // ----------------------------------------------------------------------------- |
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471 // CSdpConnectionField::SetAddressL |
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472 // Sets new address and types, leaves on error |
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473 // ----------------------------------------------------------------------------- |
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474 // |
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475 EXPORT_C void CSdpConnectionField::SetAddressL( |
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476 RStringF aNetType, |
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477 RStringF aAddressType, |
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478 const TDesC8& aAddress ) |
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479 { |
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480 __TEST_INVARIANT; |
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481 TInt err( KErrNone ); |
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482 RStringF netTypeBackup = iNetType.Copy(); |
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483 RStringF addressTypeBackup = iAddressType.Copy(); |
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484 CleanupClosePushL( netTypeBackup ); |
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485 CleanupClosePushL( addressTypeBackup ); |
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486 |
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487 TRAP( err, CopyNetTypeL( aNetType.DesC() ) ); |
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488 if ( !err ) |
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489 { |
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490 // Netowrk type changed successfully |
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491 TRAP( err, CopyAddressTypeL( aAddressType.DesC() ) ); |
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492 if ( !err ) |
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493 { |
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494 // Address type & network type changed successfully |
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495 TRAP( err, CopyAddressL( aAddress, iAddressType.Pool() ) ); |
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496 |
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497 if ( err ) |
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498 { |
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499 // Place back old netType & address |
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500 iNetType.Close(); |
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501 iNetType = netTypeBackup.Copy(); |
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502 |
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503 iAddressType.Close(); |
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504 iAddressType = addressTypeBackup.Copy(); |
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505 |
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506 User::LeaveIfError( err ); |
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507 } |
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508 // Everything changed succesfully |
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509 } |
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510 else |
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511 { |
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512 // Place back old netType |
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513 iNetType.Close(); |
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514 iNetType = netTypeBackup.Copy(); |
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515 |
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516 User::LeaveIfError( err ); |
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517 } |
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518 } |
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519 else |
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520 { |
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521 User::LeaveIfError( err ); |
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522 } |
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523 |
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524 CleanupStack::PopAndDestroy( 2 ); // netTypeBackup, addressTypeBackup |
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525 } |
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526 |
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527 // ----------------------------------------------------------------------------- |
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528 // CSdpConnectionField::TTLValue |
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529 // Returns TTL attribute |
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530 // ----------------------------------------------------------------------------- |
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531 // |
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532 EXPORT_C TInt CSdpConnectionField::TTLValue() const |
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533 { |
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534 __TEST_INVARIANT; |
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535 return iTTL; |
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536 } |
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537 |
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538 // ----------------------------------------------------------------------------- |
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539 // CSdpConnectionField::SetTTLL |
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540 // Sets new TTL attribute value, leaves on error |
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541 // ----------------------------------------------------------------------------- |
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542 // |
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543 EXPORT_C void CSdpConnectionField::SetTTLL( |
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544 TInt aTTL ) |
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545 { |
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546 __TEST_INVARIANT; |
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547 |
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548 const TInetAddr* addr = InetAddress(); |
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549 |
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550 // FQDN; Unicast, can be only KErrNotFound |
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551 // IP4 Multicast: 0 <= TTL <= 255 |
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552 // IP4 Unicast, can be only KErrNotFound |
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553 // IP6 can be only KErrNotFound |
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554 |
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555 if ( ( !addr && aTTL != KErrNotFound ) || |
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556 ( addr && addr->Address() && addr->IsMulticast() && |
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557 ( aTTL < 0 || aTTL > 255 ) ) || |
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558 ( addr && addr->Address() && !addr->IsMulticast() && |
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559 aTTL != KErrNotFound ) || |
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560 ( addr && !addr->Address() && aTTL != KErrNotFound ) ) |
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561 { |
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562 User::Leave( KErrSdpCodecConnectionField ); |
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563 } |
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564 |
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565 iTTL = aTTL; |
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566 } |
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567 |
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568 // ----------------------------------------------------------------------------- |
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569 // CSdpConnectionField::NumOfAddress |
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570 // Returns number of continuous addresses for multicast |
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571 // ----------------------------------------------------------------------------- |
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572 // |
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573 EXPORT_C TInt CSdpConnectionField::NumOfAddress() const |
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574 { |
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575 return iNumOfAddress; |
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576 } |
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577 |
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578 // ----------------------------------------------------------------------------- |
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579 // CSdpConnectionField::SetNumOfAddressL |
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580 // Sets number of addresses |
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581 // ----------------------------------------------------------------------------- |
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582 // |
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583 EXPORT_C void CSdpConnectionField::SetNumOfAddressL( |
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584 TUint aNumOfAddress ) |
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585 { |
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586 const TInetAddr* addr = InetAddress(); |
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587 if ( aNumOfAddress < 1 || ( !addr && aNumOfAddress != 1 ) || |
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588 ( addr && !addr->IsMulticast() && aNumOfAddress != 1 ) ) |
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589 { |
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590 User::Leave( KErrSdpCodecConnectionField ); |
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591 } |
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592 |
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593 iNumOfAddress = aNumOfAddress; |
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594 } |
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595 |
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596 // ----------------------------------------------------------------------------- |
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597 // CSdpConnectionField::ExternalizeL |
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598 // Externalizes the object to stream |
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599 // ----------------------------------------------------------------------------- |
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600 // |
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601 void CSdpConnectionField::ExternalizeL( |
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602 RWriteStream& aStream ) const |
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603 { |
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604 __TEST_INVARIANT; |
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605 |
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606 // Address |
|
607 aStream.WriteUint32L( iAddress->Des().Length() ); |
|
608 aStream.WriteL( iAddress->Des(), iAddress->Des().Length() ); |
|
609 // TTL |
|
610 aStream.WriteInt32L( iTTL ); |
|
611 // Number of addresses |
|
612 aStream.WriteInt32L( iNumOfAddress ); |
|
613 // <network type> |
|
614 aStream.WriteUint32L( iNetType.DesC().Length() ); |
|
615 aStream.WriteL( iNetType.DesC() ); |
|
616 // <address type> |
|
617 aStream.WriteUint32L( iAddressType.DesC().Length() ); |
|
618 aStream.WriteL( iAddressType.DesC() ); |
|
619 } |
|
620 |
|
621 // ----------------------------------------------------------------------------- |
|
622 // CSdpConnectionField::InternalizeL |
|
623 // Internalizes the object from stream |
|
624 // ----------------------------------------------------------------------------- |
|
625 // |
|
626 CSdpConnectionField* CSdpConnectionField::InternalizeL( |
|
627 RReadStream& aStream ) |
|
628 { |
|
629 TUint32 length; |
|
630 CSdpConnectionField* obj = NULL; |
|
631 RStringPool pool = SdpCodecStringPool::StringPoolL(); |
|
632 |
|
633 // address |
|
634 length = aStream.ReadUint32L(); |
|
635 HBufC8* address = HBufC8::NewLC( length ); |
|
636 TPtr8 ptr( address->Des() ); |
|
637 aStream.ReadL( ptr, length ); |
|
638 // TTL |
|
639 TInt ttl = aStream.ReadInt32L(); |
|
640 // Number of addresses |
|
641 TInt numOfAddr = aStream.ReadInt32L(); |
|
642 // Network type |
|
643 length = aStream.ReadUint32L(); |
|
644 HBufC8* netType = HBufC8::NewLC( length ); |
|
645 ptr.Set( netType->Des() ); |
|
646 aStream.ReadL( ptr, length ); |
|
647 // Address type |
|
648 length = aStream.ReadUint32L(); |
|
649 HBufC8* addrType = HBufC8::NewLC( length ); |
|
650 ptr.Set( addrType->Des() ); |
|
651 aStream.ReadL( ptr, length ); |
|
652 |
|
653 TInetAddr addr; |
|
654 HBufC* address16 = HBufC::NewLC( address->Length() ) ; |
|
655 address16->Des().Copy( *address ); |
|
656 TInt err = addr.Input( *address16 ); |
|
657 |
|
658 if ( !err ) |
|
659 { |
|
660 // Create connection field based on TInetAddr |
|
661 obj = CSdpConnectionField::NewL( addr, ttl, numOfAddr ); |
|
662 } |
|
663 else |
|
664 { |
|
665 // Create connection field from buffer, ttl & numOfAddr |
|
666 // are in this case irrelevant |
|
667 RStringF netTypeStr = pool.OpenFStringL( *netType ); |
|
668 CleanupClosePushL( netTypeStr ); |
|
669 RStringF addrTypeStr = pool.OpenFStringL( *addrType ); |
|
670 CleanupClosePushL( addrTypeStr ); |
|
671 obj = CSdpConnectionField::NewL( netTypeStr, addrTypeStr, *address ); |
|
672 CleanupStack::PopAndDestroy( 2 ); // netTypeStr, addrTypeStr |
|
673 } |
|
674 |
|
675 CleanupStack::PopAndDestroy( 4 ); // address, netType, addrType, address16 |
|
676 return obj; |
|
677 } |
|
678 |
|
679 // ----------------------------------------------------------------------------- |
|
680 // CSdpConnectionField::IsValidAddress |
|
681 // Checks if the given address is valid |
|
682 // ----------------------------------------------------------------------------- |
|
683 // |
|
684 TInt CSdpConnectionField::IsValidAddress( |
|
685 TBool aAddressTypeIP4, |
|
686 const TDesC8& aAddress ) const |
|
687 { |
|
688 HBufC8* address = NULL; |
|
689 TInt ttl( 0 ); |
|
690 TUint num( 0 ); |
|
691 |
|
692 TRAPD( err, address = |
|
693 ParseAddressFieldL( aAddressTypeIP4, aAddress, ttl, num ) ); |
|
694 delete address; |
|
695 |
|
696 return err; |
|
697 } |
|
698 |
|
699 // ----------------------------------------------------------------------------- |
|
700 // CSdpConnectionField::IsValidAddress |
|
701 // Checks if the given address is valid |
|
702 // ----------------------------------------------------------------------------- |
|
703 // |
|
704 TInt CSdpConnectionField::IsValidAddress( |
|
705 const TInetAddr& aAddress, |
|
706 TInt aTTL, |
|
707 TUint aNumOfAddress ) const |
|
708 { |
|
709 TInt err( KErrSdpCodecConnectionField ); |
|
710 // 0 <= TTL <= 255 or KErrNotFound if not defined |
|
711 // Number of addresses > 0 |
|
712 if ( ( aTTL == KErrNotFound || ( aTTL >= 0 && aTTL <= 255 ) ) && |
|
713 aNumOfAddress > 0 ) |
|
714 { |
|
715 TBuf16 <KMaxAddressLength> output; |
|
716 aAddress.Output(output); |
|
717 |
|
718 // Address has to be either of type IP4 or IP6 |
|
719 // If IP4 and multicast then it must contain TTL attribute |
|
720 // If IP4 and unicast then it must NOT contain TTL and must have 1 address |
|
721 // If IP6 and multicast then it must NOT contain TTL |
|
722 // If IP6 and unicast then it must NOT contain TTL and must have 1 address |
|
723 if ( ( aAddress.Address() && |
|
724 ( ( aAddress.IsMulticast() && aTTL != KErrNotFound ) || |
|
725 ( aAddress.IsUnicast() && aTTL == KErrNotFound && |
|
726 aNumOfAddress == 1 ) ) ) || |
|
727 ( !aAddress.Address() && |
|
728 ( ( aAddress.IsMulticast() && aTTL == KErrNotFound ) || |
|
729 ( aAddress.IsUnicast() && aTTL == KErrNotFound && |
|
730 aNumOfAddress == 1 ) ) || |
|
731 ( aAddress.IsWildAddr() && |
|
732 ( output.Match(KWildAddr) == 0|| |
|
733 output.Match(KWildAddrIPv6) == 0 )) ) ) |
|
734 { |
|
735 err = KErrNone; |
|
736 } |
|
737 } |
|
738 |
|
739 return err; |
|
740 } |
|
741 |
|
742 // ----------------------------------------------------------------------------- |
|
743 // CSdpConnectionField::ParseAddressFieldL |
|
744 // Format the address field |
|
745 // ----------------------------------------------------------------------------- |
|
746 // |
|
747 HBufC8* CSdpConnectionField::ParseAddressFieldL( |
|
748 TBool aAddressTypeIP4, |
|
749 const TDesC8& aAddress, |
|
750 TInt& aTTL, |
|
751 TUint& aNumberOfAddresses ) const |
|
752 { |
|
753 HBufC8* address = NULL; |
|
754 |
|
755 if ( aAddress.Length() > 0 && aAddress.Length() <= KMaxAddressLength ) |
|
756 { |
|
757 // IP4 address |
|
758 TInetAddr addr; |
|
759 TBuf<KMaxAddressLength> buf16; |
|
760 |
|
761 // IP address lasts till first separator mark |
|
762 TInt pos = aAddress.Locate( KSlashChar ); |
|
763 if ( pos == KErrNotFound ) |
|
764 { |
|
765 pos = aAddress.Length(); |
|
766 } |
|
767 buf16.Copy( aAddress.Left( pos ) ); |
|
768 |
|
769 // Try to convert the string to TInetAddr |
|
770 TInt err = addr.Input( buf16 ); |
|
771 |
|
772 //Type and address check |
|
773 TBuf16 <KMaxAddressLength> output; |
|
774 addr.Output(output); |
|
775 if (err == KErrNone) |
|
776 { |
|
777 if (addr.Address() ) |
|
778 { |
|
779 if ( (addr.IsV4Mapped() && aAddressTypeIP4) || |
|
780 (!addr.IsV4Mapped() && !aAddressTypeIP4) ) |
|
781 { |
|
782 User::Leave( KErrSdpCodecConnectionField ); |
|
783 } |
|
784 else |
|
785 { |
|
786 // IP4 address |
|
787 address = ParseIP4AddressL( pos, addr, aAddress, aTTL, |
|
788 aNumberOfAddresses ); |
|
789 } |
|
790 } |
|
791 else |
|
792 { |
|
793 if ( !aAddressTypeIP4) |
|
794 { |
|
795 // IP6 address |
|
796 address = ParseIP6AddressL( pos, addr, aAddress, aTTL, |
|
797 aNumberOfAddresses ); |
|
798 } |
|
799 else if ( addr.IsWildAddr() && output.Match(KWildAddr) == 0 ) |
|
800 { |
|
801 // 0.0.0.0 |
|
802 address = ParseIP4AddressL( pos, addr, aAddress, aTTL, |
|
803 aNumberOfAddresses ); |
|
804 } |
|
805 else |
|
806 { |
|
807 User::Leave( KErrSdpCodecConnectionField ); |
|
808 } |
|
809 } |
|
810 } |
|
811 else |
|
812 { |
|
813 // FQDN |
|
814 // Clarify that the address contains only valid FQDN chars |
|
815 // This is always unicast |
|
816 for ( TInt i( 0 ); i < aAddress.Length(); i++ ) |
|
817 { |
|
818 if ( KValidFQDNChars().Locate( aAddress[i] ) == |
|
819 KErrNotFound ) |
|
820 { |
|
821 User::Leave( KErrSdpCodecConnectionField ); |
|
822 } |
|
823 } |
|
824 address = aAddress.AllocL(); |
|
825 aTTL = KErrNotFound; |
|
826 aNumberOfAddresses = 1; |
|
827 } |
|
828 |
|
829 } |
|
830 else |
|
831 { |
|
832 User::Leave( KErrSdpCodecConnectionField ); |
|
833 } |
|
834 |
|
835 return address; |
|
836 } |
|
837 |
|
838 // ----------------------------------------------------------------------------- |
|
839 // CSdpConnectionField::ParseIP4AddressL |
|
840 // Parses IP4 address and checks that it is valid |
|
841 // ----------------------------------------------------------------------------- |
|
842 // |
|
843 HBufC8* CSdpConnectionField::ParseIP4AddressL( |
|
844 TInt aPos, |
|
845 TInetAddr& aAddr, |
|
846 const TDesC8& aAddress, |
|
847 TInt& aTTL, |
|
848 TUint& aNumberOfAddresses ) const |
|
849 { |
|
850 HBufC8* address = NULL; |
|
851 |
|
852 if ( aAddr.IsMulticast() ) |
|
853 { |
|
854 // Multicast address - MUST contain TTL and possibly |
|
855 // number of addresses |
|
856 if ( aPos != aAddress.Length() ) |
|
857 { |
|
858 TInt pos2 = aAddress.Right( aAddress.Length() - aPos - 1 ).Locate( |
|
859 KSlashChar ); |
|
860 |
|
861 if ( pos2 != KErrNotFound ) |
|
862 { |
|
863 pos2 += aPos + 1; |
|
864 |
|
865 // Validity check for number strings |
|
866 TBool digit = SdpUtil::IsDigit( |
|
867 aAddress.Mid( aPos + 1, pos2 - aPos - 1 ) ); |
|
868 digit = digit && SdpUtil::IsDigit( |
|
869 aAddress.Mid( pos2 + 1, aAddress.Length() - pos2 - 1 ) ); |
|
870 if ( !digit ) |
|
871 { |
|
872 User::Leave( KErrSdpCodecConnectionField ); |
|
873 } |
|
874 |
|
875 // TTL & number of addresses |
|
876 User::LeaveIfError( |
|
877 TLex8( aAddress.Mid( aPos + 1, pos2 - aPos - 1 ) ).Val( |
|
878 aTTL ) ); |
|
879 User::LeaveIfError( |
|
880 TLex8( aAddress.Mid( |
|
881 pos2 + 1, aAddress.Length() - pos2 - 1 ) ).Val( |
|
882 aNumberOfAddresses, EDecimal ) ); |
|
883 |
|
884 __ASSERT_ALWAYS( aTTL >= 0 |
|
885 && aTTL <= 255 |
|
886 && aNumberOfAddresses > 0, |
|
887 User::Leave( KErrSdpCodecConnectionField ) ); |
|
888 } |
|
889 else |
|
890 { |
|
891 // Validity check for number strings |
|
892 TBool digit = SdpUtil::IsDigit( |
|
893 aAddress.Mid( aPos + 1, aAddress.Length() - aPos - 1 ) ); |
|
894 if ( !digit ) |
|
895 { |
|
896 User::Leave( KErrSdpCodecConnectionField ); |
|
897 } |
|
898 |
|
899 // Plain TTL |
|
900 User::LeaveIfError( |
|
901 TLex8( aAddress.Mid( |
|
902 aPos + 1, aAddress.Length() - aPos - 1 ) ).Val( |
|
903 aTTL ) ); |
|
904 aNumberOfAddresses = 1; |
|
905 |
|
906 __ASSERT_ALWAYS( aTTL >= 0 && aTTL <= 255, |
|
907 User::Leave( KErrSdpCodecConnectionField ) ); |
|
908 } |
|
909 |
|
910 address = aAddress.Left( aPos ).AllocL(); |
|
911 } |
|
912 else |
|
913 { |
|
914 User::Leave( KErrSdpCodecConnectionField ); |
|
915 } |
|
916 } |
|
917 else |
|
918 { |
|
919 // Unicast address - cannot contain any multicast TTLs etc. |
|
920 if ( aPos == aAddress.Length() ) |
|
921 { |
|
922 address = aAddress.AllocL(); |
|
923 aTTL = KErrNotFound; |
|
924 aNumberOfAddresses = 1; |
|
925 } |
|
926 else |
|
927 { |
|
928 User::Leave( KErrSdpCodecConnectionField ); |
|
929 } |
|
930 } |
|
931 |
|
932 return address; |
|
933 } |
|
934 |
|
935 // ----------------------------------------------------------------------------- |
|
936 // CSdpConnectionField::ParseIP6AddressL |
|
937 // Parses IP6 address and checks that it is valid |
|
938 // ----------------------------------------------------------------------------- |
|
939 // |
|
940 HBufC8* CSdpConnectionField::ParseIP6AddressL( |
|
941 TInt aPos, |
|
942 TInetAddr& aAddr, |
|
943 const TDesC8& aAddress, |
|
944 TInt& aTTL, |
|
945 TUint& aNumberOfAddresses ) const |
|
946 { |
|
947 HBufC8* address = NULL; |
|
948 |
|
949 if ( aAddr.IsMulticast() ) |
|
950 { |
|
951 // Multicast address - CAN contain one extra attribute, |
|
952 // number of addresses |
|
953 if ( aPos != aAddress.Length() ) |
|
954 { |
|
955 // Validity check for number strings |
|
956 |
|
957 TBool digit = SdpUtil::IsDigit( |
|
958 aAddress.Mid( aPos + 1, aAddress.Length() - aPos - 1 ) ); |
|
959 if ( !digit ) |
|
960 { |
|
961 User::Leave( KErrSdpCodecConnectionField ); |
|
962 } |
|
963 |
|
964 User::LeaveIfError( TLex8( aAddress.Mid( |
|
965 aPos + 1, aAddress.Length() - aPos - 1 ) ).Val( |
|
966 aNumberOfAddresses, EDecimal ) ); |
|
967 |
|
968 __ASSERT_ALWAYS( aNumberOfAddresses > 0, |
|
969 User::Leave( KErrSdpCodecConnectionField ) ); |
|
970 } |
|
971 else |
|
972 { |
|
973 aNumberOfAddresses = 1; |
|
974 } |
|
975 |
|
976 aTTL = KErrNotFound; // IP6 does not use TTL |
|
977 address = aAddress.Left( aPos ).AllocL(); |
|
978 } |
|
979 else |
|
980 { |
|
981 // Unicast address - cannot contain any multicast TTLs etc. |
|
982 if ( aPos == aAddress.Length() ) |
|
983 { |
|
984 address = aAddress.AllocL(); |
|
985 aTTL = KErrNotFound; |
|
986 aNumberOfAddresses = 1; |
|
987 } |
|
988 else |
|
989 { |
|
990 User::Leave( KErrSdpCodecConnectionField ); |
|
991 } |
|
992 } |
|
993 |
|
994 return address; |
|
995 } |
|
996 |
|
997 // ----------------------------------------------------------------------------- |
|
998 // CSdpConnectionField::CopyNetTypeL |
|
999 // Copies network type to object after checking that it is valid |
|
1000 // ----------------------------------------------------------------------------- |
|
1001 // |
|
1002 void CSdpConnectionField::CopyNetTypeL( |
|
1003 const TDesC8& aNetType ) |
|
1004 { |
|
1005 if ( !SdpUtil::IsToken( aNetType ) ) |
|
1006 { |
|
1007 User::Leave( KErrSdpCodecConnectionField ); |
|
1008 } |
|
1009 else |
|
1010 { |
|
1011 RStringF netType = iPool.OpenFStringL( aNetType ); |
|
1012 iNetType.Close(); |
|
1013 iNetType = netType; |
|
1014 } |
|
1015 } |
|
1016 |
|
1017 // ----------------------------------------------------------------------------- |
|
1018 // CSdpConnectionField::CopyAddressTypeL |
|
1019 // Copies address type after checking that it is valid |
|
1020 // ----------------------------------------------------------------------------- |
|
1021 // |
|
1022 void CSdpConnectionField::CopyAddressTypeL( |
|
1023 const TDesC8& aAddrType ) |
|
1024 { |
|
1025 if ( !SdpUtil::IsToken( aAddrType ) ) |
|
1026 { |
|
1027 User::Leave( KErrSdpCodecConnectionField ); |
|
1028 } |
|
1029 else |
|
1030 { |
|
1031 RStringF addrType = iPool.OpenFStringL( aAddrType ); |
|
1032 iAddressType.Close(); |
|
1033 iAddressType = addrType; |
|
1034 } |
|
1035 } |
|
1036 |
|
1037 // ----------------------------------------------------------------------------- |
|
1038 // CSdpConnectionField::CopyAddressL |
|
1039 // Copies address after checking that it is valid |
|
1040 // ----------------------------------------------------------------------------- |
|
1041 // |
|
1042 void CSdpConnectionField::CopyAddressL( |
|
1043 const TDesC8& aAddress, |
|
1044 RStringPool aPool ) |
|
1045 { |
|
1046 RStringF addrTypeIP4 = aPool.StringF( |
|
1047 SdpCodecStringConstants::EAddressTypeIP4, |
|
1048 SdpCodecStringConstants::Table ); |
|
1049 RStringF addrTypeIP6 = aPool.StringF( |
|
1050 SdpCodecStringConstants::EAddressType, |
|
1051 SdpCodecStringConstants::Table ); |
|
1052 HBufC8* addr = NULL; |
|
1053 |
|
1054 if ( iAddressType == addrTypeIP4 || iAddressType == addrTypeIP6 ) |
|
1055 { |
|
1056 User::LeaveIfError( |
|
1057 IsValidAddress( iAddressType == addrTypeIP4, aAddress ) ); |
|
1058 |
|
1059 addr = ParseAddressFieldL( iAddressType == addrTypeIP4, aAddress, |
|
1060 iTTL, iNumOfAddress ); |
|
1061 //If address is IPv4-Mapped IPv6 , it is changed to IPv4 |
|
1062 TInetAddr inetaddr; |
|
1063 TBuf<KMaxAddressLength> address; |
|
1064 address.Copy(*addr); |
|
1065 TInt err = inetaddr.Input(address); |
|
1066 TBuf16 <KMaxAddressLength> output; |
|
1067 inetaddr.Output(output); |
|
1068 if(!err && |
|
1069 ( ( inetaddr.Address() && inetaddr.IsV4Mapped() ) || |
|
1070 ( inetaddr.IsWildAddr() && output.Match(KWildAddr) != KErrNotFound ) |
|
1071 ) ) |
|
1072 {//IPv4-Mapped IPv6 is changed to IPv4 address |
|
1073 TBuf<KMaxIPDesLength> buf; |
|
1074 inetaddr.Output( buf ); |
|
1075 // Copy new address to safe |
|
1076 delete addr; |
|
1077 addr = NULL; |
|
1078 addr = HBufC8::NewL(buf.Length()); |
|
1079 addr->Des().Copy(buf); |
|
1080 iAddressType.Close(); |
|
1081 iAddressType = |
|
1082 iPool.StringF(SdpCodecStringConstants::EAddressTypeIP4, |
|
1083 SdpCodecStringConstants::Table ).Copy(); |
|
1084 } |
|
1085 |
|
1086 } |
|
1087 else |
|
1088 { |
|
1089 // Address not IP4 or IP6, must be then non-ws-string |
|
1090 if ( SdpUtil::IsNonWhitespace( aAddress ) ) |
|
1091 { |
|
1092 addr = aAddress.AllocL(); |
|
1093 } |
|
1094 else |
|
1095 { |
|
1096 User::Leave( KErrSdpCodecConnectionField ); |
|
1097 } |
|
1098 } |
|
1099 |
|
1100 delete iAddress; |
|
1101 iAddress = addr; |
|
1102 } |
|
1103 |
|
1104 // For DEBUG builds |
|
1105 |
|
1106 // ----------------------------------------------------------------------------- |
|
1107 // CSdpConnectionField::__DbgTestInvariant |
|
1108 // Test invariant |
|
1109 // ----------------------------------------------------------------------------- |
|
1110 // |
|
1111 |
|
1112 void CSdpConnectionField::__DbgTestInvariant() const |
|
1113 { |
|
1114 TBool validAddr = EFalse; |
|
1115 |
|
1116 RStringF addrTypeIP4 = iPool.StringF( |
|
1117 SdpCodecStringConstants::EAddressTypeIP4, |
|
1118 SdpCodecStringConstants::Table ); |
|
1119 RStringF addrTypeIP6 = iPool.StringF( |
|
1120 SdpCodecStringConstants::EAddressType, |
|
1121 SdpCodecStringConstants::Table ); |
|
1122 |
|
1123 if ( iAddress && |
|
1124 ( iAddressType == addrTypeIP4 || iAddressType == addrTypeIP6 ) ) |
|
1125 { |
|
1126 TInetAddr addr; |
|
1127 TBuf<KMaxAddressLength> buf16; |
|
1128 buf16.Copy( *iAddress ); |
|
1129 TInt err = addr.Input( buf16 ); |
|
1130 if ( !err ) |
|
1131 { |
|
1132 validAddr = IsValidAddress(addr, iTTL, iNumOfAddress) == KErrNone; |
|
1133 } |
|
1134 else |
|
1135 { |
|
1136 // FQDN unicast |
|
1137 if ( iTTL == KErrNotFound && iNumOfAddress == 1 ) |
|
1138 { |
|
1139 validAddr = ETrue; |
|
1140 } |
|
1141 } |
|
1142 } |
|
1143 |
|
1144 TBool invariant = ( SdpUtil::IsToken( iNetType.DesC() ) && |
|
1145 SdpUtil::IsToken( iAddressType.DesC() ) && |
|
1146 iAddress && SdpUtil::IsNonWhitespace( *iAddress ) && |
|
1147 validAddr ); |
|
1148 |
|
1149 if ( !invariant ) |
|
1150 { |
|
1151 User::Invariant(); |
|
1152 } |
|
1153 } |
|
1154 |
|
1155 |