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1 /* |
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2 * Copyright (c) 2005-2009 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 * Name : TTlv.h |
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16 * Part of : Series 60 / utility |
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17 * Based on 3GPP TS 11.14 V8.8.0 |
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18 * Version : 1.0 |
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19 * |
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20 */ |
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21 |
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22 |
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23 |
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24 // INCLUDES |
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25 #ifndef TTLV_H |
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26 #define TTLV_H |
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27 |
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28 #include <cstktsy/bertlv_defs.h> // BerTlv constants |
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29 |
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30 // CONSTANTS |
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31 |
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32 //none |
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33 |
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34 // MACROS |
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35 |
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36 //none |
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37 |
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38 // DATA TYPES |
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39 |
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40 //none |
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41 |
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42 // EXTERNAL DATA STRUCTURES |
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43 |
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44 //none |
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45 |
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46 // FUNCTION PROTOTYPES |
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47 |
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48 //none |
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49 |
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50 // FORWARD DECLARATIONS |
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51 |
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52 //none |
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53 |
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54 // DESCRIPTION |
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55 // TLV type: Tag Length Value(s) |
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56 // Generic BER-TLV constructor class, can be used to create TLVs |
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57 // You do not need to worry about lenghts; Example usage: |
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58 // TTlv tlv; |
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59 // tlv.Begin( KxxBerTag); <--- top level tag |
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60 // tlv.AddTag( KxxxTag ) <--- simple tags |
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61 // tlv.AddByte(...) <--- add values for this tag |
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62 // tlv.AddByte(...) |
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63 // .... add more simple tags and values.. |
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64 // result = tlv.End(); <--- ends construction and returns |
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65 // the BER-TLV |
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66 |
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67 class TTlvBase |
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68 { |
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69 public: // Constructor |
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70 |
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71 /** |
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72 * Constructor |
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73 * @param aData: data to be inserted |
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74 */ |
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75 IMPORT_C TTlvBase( TDes8& aData ); |
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76 |
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77 public: |
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78 |
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79 /** |
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80 * Begin TLV construction |
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81 * @param aTag: BER-TLV tag |
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82 * @return None |
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83 */ |
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84 IMPORT_C void Begin( TUint8 aTag ); |
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85 |
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86 /** |
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87 * Start new simple TLV |
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88 * @param aTag: simple tag |
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89 * @return None |
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90 */ |
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91 IMPORT_C void AddTag( TUint8 aTag ); |
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92 |
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93 /** |
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94 * Add byte value to simple TLV |
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95 * @param aValue: byte value |
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96 * @return None |
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97 */ |
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98 IMPORT_C void AddByte( TUint8 aValue ); |
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99 |
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100 /** |
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101 * Add descriptor value to simple TLV |
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102 * @param aValue: descriptor value |
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103 * @return None |
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104 */ |
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105 IMPORT_C void AddData( const TDesC8& aValue ); |
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106 |
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107 /** |
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108 * End TLV construction |
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109 * @param None |
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110 * @return descriptor containing BER-TLV |
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111 */ |
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112 IMPORT_C const TDesC8& End(); |
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113 |
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114 /** |
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115 * Return data, calculated without |
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116 * top level tag. |
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117 * @param None |
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118 * @return descriptor containing BER-TLV |
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119 */ |
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120 IMPORT_C const TDesC8& GetDataWithoutTopLevelTag(); |
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121 |
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122 protected: // Data |
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123 TInt iLenIndex; |
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124 TDes8& iData; |
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125 }; |
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126 |
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127 // DESCRIPTION |
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128 // Type for Tag Length Value buffer. |
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129 // Define TLV that is smaller than default max size of 255 |
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130 |
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131 template <TInt S> |
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132 class TTlvBuf : public TTlvBase |
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133 { |
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134 public: // Constructor |
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135 |
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136 /** |
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137 * Default constructor |
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138 */ |
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139 TTlvBuf():TTlvBase(iBuffer) |
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140 { |
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141 } |
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142 private: // Data |
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143 |
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144 TBuf8<S> iBuffer; |
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145 }; |
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146 |
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147 // DESCRIPTION |
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148 // Type for Tag Length Value buffer |
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149 // default TLV with size of 255 |
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150 |
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151 class TTlv : public TTlvBase |
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152 { |
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153 public: |
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154 |
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155 /** |
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156 * Default constructor |
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157 */ |
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158 TTlv() : TTlvBase(iBuffer) |
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159 { |
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160 } |
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161 |
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162 private: |
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163 // TLV must fit in APDU limits (255 bytes) |
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164 // therefore the maximum possible TLV size is 255 |
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165 TBuf8<KTlvMaxSize> iBuffer; |
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166 }; |
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167 |
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168 #endif // TTLV_H |
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169 |
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170 // End of File |