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1 // Copyright (c) 2004-2009 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 #include <bluetooth/logger.h> |
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17 |
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18 #include "l2capSigPacketDisconnection.h" |
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19 #include "l2capSignalHandler.h" |
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20 #include "l2constants.h" |
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21 |
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22 #ifdef __FLOG_ACTIVE |
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23 _LIT8(KLogComponent, LOG_COMPONENT_L2CAP); |
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24 #endif |
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25 |
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26 // DISCONNECT REQUEST COMMAND |
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27 |
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28 /*static*/ HDisconnectRequest* HDisconnectRequest::New(TL2CAPPort aLocalPort, TL2CAPPort aRemotePort, |
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29 TUint8 aRTXTimerDuration, |
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30 TUint16 aERTXTimerDuration) |
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31 { |
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32 LOG_STATIC_FUNC |
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33 HDisconnectRequest* cmd = NULL; |
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34 RMBufChain buf; |
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35 TRAPD(rerr, buf.AllocL(KDisconnectRequestLength)); |
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36 if(rerr == KErrNone) |
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37 { |
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38 cmd = new HDisconnectRequest(buf, aRTXTimerDuration, aERTXTimerDuration); |
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39 if(cmd) |
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40 { |
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41 // Setup message contents. |
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42 cmd->SetCode(EDisconnectionRequest); |
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43 cmd->SetID(KUninitialisedID); |
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44 cmd->WriteDataLength(); |
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45 |
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46 cmd->SetDestinationCID(aRemotePort); |
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47 cmd->SetSourceCID(aLocalPort); |
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48 } |
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49 else |
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50 { |
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51 // Free the allocated buffer. |
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52 buf.Free(); |
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53 } |
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54 } |
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55 return cmd; |
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56 } |
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57 |
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58 /** |
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59 Verifies that the buffer contains a structurally correct command. |
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60 This does not ensure that the content of the command is semantically valid. |
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61 |
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62 @param aCommmand A new HL2CapCommand if the buffer contains a structurally valid command. |
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63 @param aBuffer The buffer containing the command |
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64 @return KErrNone if the command if created. |
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65 KErrNoMemory if the command structure is valid but cannot be created. |
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66 KErrCorrupt if the command structure is invalid. |
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67 */ |
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68 TInt HDisconnectRequest::NewCommandIfValid(RMBufChain& aBuffer, HL2CapCommand*& aCommand) |
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69 { |
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70 LOG_STATIC_FUNC |
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71 // Firstly align the MBufChain. The maximum size we can align the |
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72 // MBufChain to is the maximum MBuf size |
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73 __ASSERT_COMPILE(KDisconnectRequestLength <= KMBufSmallSize); |
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74 |
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75 TInt length = aBuffer.Length(); |
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76 if(length == KDisconnectRequestLength) |
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77 { |
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78 // Don't need to check result as we know that the MBufChain contains |
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79 // at least length bytes as we asked first. |
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80 (void)aBuffer.Align(length); |
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81 aCommand = new HDisconnectRequest(aBuffer); |
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82 if(aCommand) |
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83 { |
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84 return KErrNone; |
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85 } |
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86 else |
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87 { |
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88 return KErrNoMemory; |
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89 } |
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90 } |
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91 else |
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92 { |
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93 // Dodge length! |
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94 return KErrCorrupt; |
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95 } |
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96 } |
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97 |
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98 HDisconnectRequest::HDisconnectRequest(RMBufChain& aCommand, |
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99 TUint8 aRTXTimerDuration, |
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100 TUint16 aERTXTimerDuration) |
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101 : HL2CapCommand(aCommand, aRTXTimerDuration, aERTXTimerDuration) |
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102 { |
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103 LOG_FUNC |
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104 } |
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105 |
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106 HDisconnectRequest::~HDisconnectRequest() |
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107 { |
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108 LOG_FUNC |
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109 } |
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110 |
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111 TBool HDisconnectRequest::ProcessCommand(CL2CapSignalHandler& aSignalHandler) |
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112 { |
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113 LOG_FUNC |
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114 if(aSignalHandler.HandleDisconnectRequest(this)) |
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115 { |
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116 // The command has been handled. Delete it. |
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117 delete this; |
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118 return ETrue; |
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119 } |
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120 else |
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121 { |
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122 return EFalse; |
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123 } |
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124 } |
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125 |
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126 |
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127 |
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128 // DISCONNECT RESPONSE COMMAND |
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129 /*static*/ HDisconnectResponse* HDisconnectResponse::New(TUint8 aId, TL2CAPPort aLocalPort, TL2CAPPort aRemotePort) |
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130 { |
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131 LOG_STATIC_FUNC |
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132 HDisconnectResponse* cmd = NULL; |
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133 RMBufChain buf; |
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134 TRAPD(rerr, buf.AllocL(KDisconnectResponseLength)); |
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135 if(rerr == KErrNone) |
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136 { |
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137 cmd = new HDisconnectResponse(buf); |
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138 if(cmd) |
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139 { |
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140 // Setup message contents. |
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141 cmd->SetCode(EDisconnectionResponse); |
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142 cmd->SetID(aId); |
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143 cmd->WriteDataLength(); |
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144 |
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145 cmd->SetDestinationCID(aLocalPort); |
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146 cmd->SetSourceCID(aRemotePort); |
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147 } |
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148 else |
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149 { |
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150 // Free the allocated buffer. |
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151 buf.Free(); |
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152 } |
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153 } |
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154 return cmd; |
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155 } |
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156 |
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157 /** |
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158 Verifies that the buffer contains a structurally correct command. |
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159 This does not ensure that the content of the command is semantically valid. |
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160 |
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161 @param aCommmand A new HL2CapCommand if the buffer contains a structurally valid command. |
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162 @param aBuffer The buffer containing the command |
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163 @return KErrNone if the command if created. |
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164 KErrNoMemory if the command structure is valid but cannot be created. |
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165 KErrCorrupt if the command structure is invalid. |
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166 */ |
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167 TInt HDisconnectResponse::NewCommandIfValid(RMBufChain& aBuffer, HL2CapCommand*& aCommand) |
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168 { |
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169 LOG_STATIC_FUNC |
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170 // Firstly align the MBufChain. The maximum size we can align the |
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171 // MBufChain to is the maximum MBuf size |
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172 __ASSERT_COMPILE(KDisconnectResponseLength <= KMBufSmallSize); |
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173 |
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174 TInt length = aBuffer.Length(); |
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175 if(length == KDisconnectResponseLength) |
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176 { |
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177 // Don't need to check result as we know that the MBufChain contains |
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178 // at least length bytes as we asked first. |
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179 (void)aBuffer.Align(length); |
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180 aCommand = new HDisconnectResponse(aBuffer); |
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181 if(aCommand) |
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182 { |
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183 return KErrNone; |
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184 } |
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185 else |
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186 { |
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187 return KErrNoMemory; |
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188 } |
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189 } |
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190 else |
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191 { |
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192 // Dodge length! |
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193 return KErrCorrupt; |
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194 } |
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195 } |
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196 |
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197 HDisconnectResponse::HDisconnectResponse(RMBufChain& aCommand) |
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198 : HL2CapCommand(aCommand) |
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199 { |
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200 LOG_FUNC |
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201 } |
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202 |
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203 HDisconnectResponse::~HDisconnectResponse() |
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204 { |
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205 LOG_FUNC |
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206 } |
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207 |
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208 TBool HDisconnectResponse::ProcessCommand(CL2CapSignalHandler& aSignalHandler) |
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209 { |
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210 LOG_FUNC |
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211 if(aSignalHandler.HandleDisconnectResponse(this)) |
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212 { |
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213 // The command has been handled. Delete it. |
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214 delete this; |
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215 return ETrue; |
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216 } |
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217 else |
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218 { |
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219 return EFalse; |
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220 } |
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221 } |