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1 /* |
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2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #include <es_sock.h> |
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22 #include "natfwunsafaddressattribute.h" |
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23 #include "natfwunsafutils.h" |
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24 |
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25 |
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26 // ----------------------------------------------------------------------------- |
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27 // CNATFWUNSAFAddressAttribute::CNATFWUNSAFAddressAttribute |
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28 // ----------------------------------------------------------------------------- |
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29 // |
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30 CNATFWUNSAFAddressAttribute::CNATFWUNSAFAddressAttribute() |
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31 { |
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32 } |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // CNATFWUNSAFAddressAttribute::CNATFWUNSAFAddressAttribute |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 CNATFWUNSAFAddressAttribute::CNATFWUNSAFAddressAttribute( |
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39 const TInetAddr& aInetAddr) : |
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40 CNATFWUNSAFAttribute(), |
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41 iInetAddr(aInetAddr) |
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42 { |
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43 } |
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44 |
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45 // ----------------------------------------------------------------------------- |
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46 // CNATFWUNSAFAddressAttribute::~CNATFWUNSAFAddressAttribute |
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47 // ----------------------------------------------------------------------------- |
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48 // |
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49 CNATFWUNSAFAddressAttribute::~CNATFWUNSAFAddressAttribute() |
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50 { |
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51 } |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CNATFWUNSAFAddressAttribute::EncodeValueL |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 HBufC8* CNATFWUNSAFAddressAttribute::EncodeValueL() const |
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58 { |
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59 TInt size = IsIPv6Address() ? EAttributeValueSizeIPv6 : |
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60 EAttributeValueSizeIPv4; |
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61 HBufC8* encodedValue = HBufC8::NewLC(size); |
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62 TPtr8 ptr = encodedValue->Des(); |
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63 ptr.FillZ(size); |
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64 |
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65 if (IsIPv6Address()) |
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66 { |
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67 ptr[EFamilyOffset] = KAddressFamilyIPv6; |
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68 } |
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69 else |
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70 { |
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71 ptr[EFamilyOffset] = KAddressFamilyIPv4; |
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72 } |
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73 EncodeAddressL(ptr); |
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74 |
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75 CleanupStack::Pop(encodedValue); |
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76 return encodedValue; |
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77 } |
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78 |
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79 // ----------------------------------------------------------------------------- |
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80 // CNATFWUNSAFAddressAttribute::Address |
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81 // ----------------------------------------------------------------------------- |
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82 // |
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83 EXPORT_C TInetAddr& CNATFWUNSAFAddressAttribute::Address() |
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84 { |
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85 return iInetAddr; |
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86 } |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // CNATFWUNSAFAddressAttribute::Address |
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90 // ----------------------------------------------------------------------------- |
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91 // |
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92 EXPORT_C const TInetAddr& CNATFWUNSAFAddressAttribute::Address() const |
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93 { |
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94 return iInetAddr; |
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95 } |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CNATFWUNSAFAddressAttribute::EncodeAddressL |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 void CNATFWUNSAFAddressAttribute::EncodeAddressL(TDes8& aResult) const |
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102 { |
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103 EncodeAddressL(iInetAddr, aResult); |
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104 } |
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105 |
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106 // ----------------------------------------------------------------------------- |
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107 // CNATFWUNSAFAddressAttribute::EncodeAddressL |
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108 // ----------------------------------------------------------------------------- |
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109 // |
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110 void CNATFWUNSAFAddressAttribute::EncodeAddressL(const TInetAddr& aInetAddr, |
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111 TDes8& aResult) const |
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112 { |
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113 NATFWUNSAFUtils::WriteNetworkOrder16L(aResult, |
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114 EPortOffset, |
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115 static_cast<TUint16> |
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116 (aInetAddr.Port())); |
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117 if (IsIPv6Address(aInetAddr)) |
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118 { |
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119 const TInt KIPv6AddressSize = EAttributeValueSizeIPv6 - EAddressOffset; |
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120 const TIp6Addr& ipv6Addr = aInetAddr.Ip6Address(); |
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121 for ( TInt i = 0; i < KIPv6AddressSize; ++ i ) |
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122 { |
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123 aResult[EAddressOffset + i] = ipv6Addr.u.iAddr8[i]; |
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124 } |
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125 } |
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126 else |
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127 { |
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128 NATFWUNSAFUtils::WriteNetworkOrder32L(aResult, |
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129 EAddressOffset, |
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130 aInetAddr.Address()); |
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131 } |
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132 } |
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133 |
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134 // ----------------------------------------------------------------------------- |
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135 // CNATFWUNSAFAddressAttribute::DecodeValueL |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CNATFWUNSAFAddressAttribute::DecodeValueL(const TDesC8& aValue) |
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139 { |
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140 //Byte stream must contain at least enough data for this attribute (at least |
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141 //enough data to contain an IPv4 address). It may contain more data (other |
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142 //attributes etc). |
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143 __ASSERT_ALWAYS(aValue.Length() >= EAttributeValueSizeIPv4, |
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144 User::Leave(KErrArgument)); |
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145 |
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146 iInetAddr.SetPort(BigEndian::Get16(aValue.Mid(EPortOffset).Ptr())); |
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147 |
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148 TUint8 addressFamily = aValue[EFamilyOffset]; |
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149 __ASSERT_ALWAYS(addressFamily == KAddressFamilyIPv4 || |
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150 addressFamily == KAddressFamilyIPv6, |
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151 User::Leave(KErrArgument)); |
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152 if (addressFamily == KAddressFamilyIPv6) |
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153 { |
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154 DecodeIPv6AddressL(aValue.Mid(EAddressOffset)); |
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155 } |
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156 else |
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157 { |
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158 //SetAddress also sets address family to KAfInet, meaning IPv4 address |
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159 iInetAddr.SetAddress( |
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160 BigEndian::Get32(aValue.Mid(EAddressOffset).Ptr())); |
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161 } |
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162 } |
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163 |
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164 // ----------------------------------------------------------------------------- |
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165 // CNATFWUNSAFAddressAttribute::DecodeIPv6AddressL |
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166 // ----------------------------------------------------------------------------- |
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167 // |
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168 void CNATFWUNSAFAddressAttribute::DecodeIPv6AddressL(const TDesC8& aValue) |
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169 { |
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170 const TInt KIPv6AddressSize = EAttributeValueSizeIPv6 - EAddressOffset; |
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171 __ASSERT_ALWAYS(aValue.Length() >= KIPv6AddressSize, |
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172 User::Leave(KErrArgument)); |
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173 |
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174 TIp6Addr addr; |
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175 for ( TInt i = 0; i < KIPv6AddressSize; ++ i ) |
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176 { |
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177 addr.u.iAddr8[i] = aValue[i]; |
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178 } |
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179 iInetAddr.SetAddress(addr); |
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180 } |
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181 |
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182 // ----------------------------------------------------------------------------- |
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183 // CNATFWUNSAFAddressAttribute::CheckLengthL |
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184 // ----------------------------------------------------------------------------- |
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185 // |
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186 void CNATFWUNSAFAddressAttribute::CheckLengthL(const TDesC8& aByteStream) |
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187 { |
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188 TUint16 length = ParseLengthL(aByteStream); |
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189 __ASSERT_ALWAYS(length == EAttributeValueSizeIPv4 || |
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190 length == EAttributeValueSizeIPv6, |
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191 User::Leave(KErrCorrupt)); |
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192 } |
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193 |
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194 // ----------------------------------------------------------------------------- |
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195 // CNATFWUNSAFAddressAttribute::IsIPv6Address |
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196 // ----------------------------------------------------------------------------- |
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197 // |
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198 TBool CNATFWUNSAFAddressAttribute::IsIPv6Address() const |
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199 { |
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200 return IsIPv6Address(iInetAddr); |
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201 } |
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202 |
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203 // ----------------------------------------------------------------------------- |
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204 // CNATFWUNSAFAddressAttribute::IsIPv6Address |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 TBool CNATFWUNSAFAddressAttribute::IsIPv6Address( |
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208 const TInetAddr& aInetAddr) const |
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209 { |
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210 return aInetAddr.Address() == 0 || aInetAddr.IsV4Compat(); |
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211 } |