1 // Copyright (c) 2008-2009 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 // |
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15 |
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16 /** |
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17 @file |
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18 @internalTechnology |
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19 |
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20 */ |
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21 |
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22 #include "RRLP-Messages.h" |
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23 #include "ULP.h" |
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24 #include "suplpospayload.h" |
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25 #include "supldevloggermacros.h" |
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26 #include "rrlputils.h" |
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27 #include "rrlpmeasureposrequest.h" |
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28 #include "rrlpassistancedata.h" |
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29 #include "rrlpprotocolerror.h" |
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30 #include "suplasn1error.h" |
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31 |
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32 /** |
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33 Default Constructor |
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34 */ |
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35 CSuplPosPayload::CSuplPosPayload(TSuplPosPayloadType aType, TBool aIsOutgoingMsg) |
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36 : iMessageType(aType), iIsOutgoingMessage(aIsOutgoingMsg) |
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37 { |
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38 SUPLLOG(ELogP1, "CSuplPosPayload::CSuplPosPayload() Begin\n"); |
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39 SUPLLOG(ELogP1, "CSuplPosPayload::CSuplPosPayload() End\n"); |
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40 } |
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41 |
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42 /** |
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43 Default Constructor |
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44 */ |
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45 CSuplPosPayload::~CSuplPosPayload() |
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46 { |
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47 SUPLLOG(ELogP1, "CSuplPosPayload::~CSuplPosPayload() Begin\n"); |
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48 SUPLLOG(ELogP1, "CSuplPosPayload::~CSuplPosPayload() End\n"); |
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49 } |
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50 |
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51 /** |
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52 EncodeToL() |
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53 |
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54 Encode a populated outgoing message |
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55 |
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56 @param aBuf the destination buffer to encode to |
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57 @return error indication, KErrNone otherwise |
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58 */ |
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59 TInt CSuplPosPayload::EncodeToL(TPtr8& /*aBuf*/) |
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60 { |
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61 SUPLLOG(ELogP1, "CSuplPosPayload::~CSuplPosPayload() Begin\n"); |
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62 SUPLLOG(ELogP1, "CSuplPosPayload::~CSuplPosPayload() End\n"); |
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63 return KErrNotSupported; |
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64 } |
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65 |
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66 /** |
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67 Prints the content payload data structure to the logger |
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68 Default implementation logs nothing and should be overridden |
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69 */ |
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70 void CSuplPosPayload::LogMessageContent() |
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71 { |
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72 SUPLLOG(ELogP1, "CSuplPosPayload::LogMessageContent() Begin\n"); |
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73 SUPLLOG(ELogP1, "CSuplPosPayload::LogMessageContent() End\n"); |
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74 } |
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75 |
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76 /** |
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77 MessageType() |
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78 |
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79 @return the positioning payload message type |
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80 */ |
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81 EXPORT_C CSuplPosPayload::TSuplPosPayloadType CSuplPosPayload::MessageType() |
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82 { |
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83 SUPLLOG(ELogP1, "CSuplPosPayload::MessageType() Begin\n"); |
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84 SUPLLOG2(ELogP1, "CSuplPosPayload::MessageType() End (iMessageType = %d)\n", iMessageType); |
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85 return iMessageType; |
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86 } |
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87 |
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88 /** |
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89 * DecodePosPayload |
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90 * |
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91 * decodes a pospayload and returns a CSuplPosPayload* (eg CRrlpMeasurePositionRequest*) containing the decoded rrlp payload |
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92 * |
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93 * @param aPosPayload an asn1-encoded rrlp pos payload. Caller takes ownership. |
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94 * @param aError any error encountered |
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95 */ |
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96 EXPORT_C CSuplPosPayload* CSuplPosPayload::DecodePosPayloadL(const HBufC8* aPosPayload, TInt& aError) |
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97 { |
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98 SUPLLOG(ELogP1, "CSuplPosPayload::DecodePosPayloadL() Begin\n"); |
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99 |
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100 CSuplPosPayload *decodedRrlpMsg = NULL; |
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101 |
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102 const ASN1T_PosPayLoad_rrlpPayload* posPayLoad = reinterpret_cast<const ASN1T_PosPayLoad_rrlpPayload*>(aPosPayload); |
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103 |
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104 // extract the RRLP payload and decode and compare... |
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105 TInt payloadLength = posPayLoad->numocts; |
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106 const OSOCTET* payloadptr = &posPayLoad->data[0]; |
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107 |
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108 // Create the payload decode buffer |
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109 // CleanupDeletePushL used for ASN1x_X classes rather than CleanupStack::PushL() to ensure |
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110 // class destructors are called on PopAndDestroy. This is necessary to ensure ASN1Context |
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111 // reference counter is decremented correctly and memory released. |
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112 ASN1Context* payloadContext = new (ELeave) ASN1Context; |
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113 CleanupDeletePushL(payloadContext); |
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114 ASN1PERDecodeBuffer* decodeBuffer = new (ELeave) ASN1PERDecodeBuffer (payloadptr, payloadLength, FALSE, payloadContext); |
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115 // construction of iDecodeBuffer successful, pop payloadContext off the cleanup stack |
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116 CleanupStack::Pop(payloadContext); // now owned by decodeBuffer |
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117 CleanupDeletePushL(decodeBuffer); |
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118 |
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119 // Create data and control objects to manage the decode |
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120 ASN1T_PDU* payloadData = new (ELeave) ASN1T_PDU(); |
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121 CleanupDeletePushL(payloadData); |
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122 ASN1C_PDU* payloadPdu = new (ELeave) ASN1C_PDU(*decodeBuffer, *payloadData); |
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123 CleanupDeletePushL(payloadPdu); |
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124 |
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125 TInt stat = payloadPdu->Decode(); |
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126 |
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127 // return now if error encountered while decoding |
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128 if (stat != KErrNone) |
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129 { |
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130 aError = RrlpUtils::ProcessAsn1Error(stat); |
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131 CleanupStack::PopAndDestroy(payloadPdu); |
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132 CleanupStack::PopAndDestroy(payloadData); |
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133 CleanupStack::PopAndDestroy(decodeBuffer); |
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134 return NULL; |
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135 } |
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136 |
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137 // build payload content wrapper. |
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138 switch (payloadData->component.t) |
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139 { |
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140 case T_RRLP_Component_msrPositionReq: |
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141 { |
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142 decodedRrlpMsg = CRrlpMeasurePositionRequest::NewL(); |
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143 break; |
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144 } |
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145 |
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146 case T_RRLP_Component_assistanceData: |
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147 { |
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148 decodedRrlpMsg = CRrlpAssistanceData::NewL(); |
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149 break; |
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150 } |
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151 |
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152 case T_RRLP_Component_protocolError: |
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153 { |
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154 decodedRrlpMsg = CRrlpProtocolError::NewL(EFalse); |
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155 break; |
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156 } |
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157 |
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158 case T_RRLP_Component_msrPositionRsp: |
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159 case T_RRLP_Component_assistanceDataAck: |
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160 default: |
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161 { |
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162 // unsupported message type |
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163 aError = ESuplAsn1ErrUnsupportedPosMessageType; |
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164 CleanupStack::PopAndDestroy(payloadPdu); |
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165 CleanupStack::PopAndDestroy(payloadData); |
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166 CleanupStack::PopAndDestroy(decodeBuffer); |
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167 return NULL; |
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168 } |
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169 } |
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170 |
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171 CleanupStack::Pop(payloadPdu); |
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172 CleanupStack::Pop(payloadData); |
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173 CleanupStack::PopAndDestroy(decodeBuffer); |
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174 |
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175 // pass ownership of the decoded message content. |
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176 static_cast<CRrlpMessageBase*>(decodedRrlpMsg)->SetDecodedData(payloadData, payloadPdu); |
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177 |
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178 SUPLLOG(ELogP1, "CSuplPosPayload::DecodePosPayloadL() End\n"); |
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179 |
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180 return decodedRrlpMsg; |
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181 |
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182 } |
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