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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 // ACL.cpp |
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15 // Implementation of ACL Logical links |
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16 // |
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17 // |
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18 |
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19 #include <bluetooth/logger.h> |
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20 #include <bt_sock.h> |
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21 #include <bluetooth/hci/aclpacketconsts.h> |
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22 |
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23 #include "ACLSAP.h" |
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24 #include "physicallinks.h" |
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25 #include "physicallinksmanager.h" |
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26 #include "Basebandmodel.h" |
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27 #include "linkmgr.h" |
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28 #include "AclDataQController.h" |
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29 #include "linkconsts.h" |
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30 #include "linkutil.h" |
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31 |
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32 #include "hcifacade.h" |
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33 |
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34 #ifdef __FLOG_ACTIVE |
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35 _LIT8(KLogComponent, LOG_COMPONENT_LINKMGR); |
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36 #endif |
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37 |
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38 #pragma warning (disable: 4100) //unreference formal param |
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39 |
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40 CACLLinkStateFactory* CACLLinkStateFactory::NewL() |
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41 { |
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42 LOG_STATIC_FUNC |
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43 CACLLinkStateFactory* ret=new (ELeave) CACLLinkStateFactory(); |
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44 CleanupStack::PushL(ret); |
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45 ret->ConstructL(); |
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46 CleanupStack::Pop(ret); |
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47 return ret; |
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48 } |
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49 |
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50 void CACLLinkStateFactory::ConstructL() |
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51 { |
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52 LOG_FUNC |
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53 iStates[EClosed] =new (ELeave) TACLLinkStateClosed(*this); |
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54 iStates[EListening] =new (ELeave) TACLLinkStateListening(*this); |
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55 iStates[EAccepting] =new (ELeave) TACLLinkStateAccepting(*this); |
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56 iStates[EWaitForLink] =new (ELeave) TACLLinkStateWaitForLink(*this); |
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57 iStates[EWaitForStart] =new (ELeave) TACLLinkStateWaitForStart(*this); |
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58 iStates[EWaitForStartError] =new (ELeave) TACLLinkStateWaitForStartError(*this); |
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59 iStates[EWaitForStartParked] =new (ELeave) TACLLinkStateWaitForStartParked(*this); |
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60 iStates[EOpen] =new (ELeave) TACLLinkStateOpen(*this); |
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61 iStates[EOpenParked] =new (ELeave) TACLLinkStateOpenParked(*this); |
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62 iStates[EClosing] =new (ELeave) TACLLinkStateClosing(*this); |
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63 } |
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64 |
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65 CACLLinkStateFactory::~CACLLinkStateFactory() |
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66 { |
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67 LOG_FUNC |
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68 iStates.DeleteAll(); |
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69 } |
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70 |
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71 TACLLinkState& CACLLinkStateFactory::GetState(CACLLinkStateFactory::TACLLinkStates aState) |
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72 { |
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73 LOG_FUNC |
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74 __ASSERT_DEBUG(aState != EACLLinkMaxState, Panic(EACLLinkStateOutOfBounds)); |
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75 return *iStates[aState]; |
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76 } |
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77 |
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78 TInt CACLLinkStateFactory::StateIndex(const TACLLinkState* aState) const |
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79 { |
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80 LOG_FUNC |
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81 TInt state; |
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82 for (state = 0; state < EACLLinkMaxState; state++) |
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83 { |
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84 if (iStates[state] == aState) |
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85 { |
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86 return state; |
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87 } |
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88 } |
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89 |
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90 return KUnknownState; |
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91 } |
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92 |
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93 TACLLinkState::TACLLinkState(CACLLinkStateFactory& aFactory) |
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94 : iFactory(aFactory) |
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95 { |
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96 LOG_FUNC |
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97 } |
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98 |
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99 void TACLLinkState::PanicInState(TLinkPanic aPanic) const |
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100 { |
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101 LOG_FUNC |
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102 Panic(aPanic, iFactory.StateIndex(this)); |
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103 } |
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104 |
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105 void TACLLinkState::ChangeState(CACLLink& aContext, CACLLinkStateFactory::TACLLinkStates aState) const |
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106 { |
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107 LOG_FUNC |
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108 aContext.iState->Exit(aContext); |
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109 |
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110 #ifdef __FLOG_ACTIVE |
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111 TACLLinkState* state=&iFactory.GetState(aState); |
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112 LOG2(_L("ACLLink: State %S -> %S"), &aContext.iState->iName, &state->iName); |
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113 #endif //__FLOG_ACTIVE |
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114 aContext.iState=&iFactory.GetState(aState); |
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115 |
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116 aContext.iState->Enter(aContext); |
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117 } |
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118 |
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119 |
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120 void TACLLinkState::Enter(CACLLink& /*aContext*/) const |
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121 { |
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122 LOG_FUNC |
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123 // do nothing |
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124 } |
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125 |
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126 void TACLLinkState::Exit(CACLLink& /*aContext*/) const |
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127 { |
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128 LOG_FUNC |
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129 // do nothing |
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130 } |
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131 |
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132 void TACLLinkState::Deletion(CACLLink& /*aContext*/) const |
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133 { |
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134 LOG_FUNC |
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135 PanicInState(EBTACLSAPUnexpectedEvent); |
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136 } |
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137 |
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138 void TACLLinkState::ActiveOpen(CACLLink& /*aContext*/) const |
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139 { |
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140 LOG_FUNC |
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141 PanicInState(EBTACLSAPUnexpectedEvent); |
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142 } |
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143 |
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144 void TACLLinkState::DataReceived(CACLLink& /*aContext*/, TUint8 /*aFlag*/, const TDesC8& /*aData*/) const |
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145 { |
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146 LOG_FUNC |
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147 __DEBUGGER(); // drop, but see why went wrong |
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148 } |
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149 |
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150 void TACLLinkState::Start(CACLLink& /*aContext*/) const |
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151 { |
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152 LOG_FUNC |
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153 PanicInState(EBTACLSAPUnexpectedEvent); //Panics since ESOCK and our state machine might be out of sync |
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154 } |
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155 |
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156 void TACLLinkState::ConnectComplete(CACLLink& /*aContext*/, const TBTConnect& /*aConnect*/) const |
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157 { |
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158 LOG_FUNC |
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159 //Drop the event silently in UREL |
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160 #ifdef _DEBUG |
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161 PanicInState(EBTACLSAPUnexpectedEvent); |
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162 #endif |
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163 } |
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164 |
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165 TBool TACLLinkState::ConnectRequest(CACLLink& /*aContext*/, |
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166 const TBTConnect& /*aConnectDetails*/, |
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167 const CPhysicalLink& /*aPhysicalLink*/) const |
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168 { |
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169 LOG_FUNC |
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170 PanicInState(EBTACLSAPUnexpectedEvent); |
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171 return EFalse; |
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172 } |
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173 |
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174 void TACLLinkState::Disconnection(CACLLink& /*aContext*/) const |
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175 { |
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176 LOG_FUNC |
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177 PanicInState(EBTACLSAPUnexpectedEvent); |
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178 } |
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179 |
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180 void TACLLinkState::Error(CACLLink& /*aContext*/, TInt /*aError*/) const |
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181 { |
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182 LOG_FUNC |
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183 PanicInState(EBTACLSAPUnexpectedEvent); |
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184 } |
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185 |
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186 void TACLLinkState::Timeout(CACLLink& /*aContext*/, TBasebandTimeout /*aTimeout*/) const |
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187 { |
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188 LOG_FUNC |
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189 PanicInState(EBTACLSAPUnexpectedEvent); |
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190 } |
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191 |
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192 void TACLLinkState::Shutdown(CACLLink& /*aContext*/, CServProviderBase::TCloseType /*aCloseType*/) const |
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193 { |
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194 LOG_FUNC |
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195 PanicInState(EBTACLSAPUnexpectedEvent); |
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196 } |
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197 |
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198 TInt TACLLinkState::PassiveOpen(CACLLink& /*aContext*/, TUint /*aQueSize*/) const |
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199 { |
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200 LOG_FUNC |
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201 PanicInState(EBTACLSAPUnexpectedEvent); |
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202 return KErrGeneral; |
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203 } |
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204 |
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205 TUint TACLLinkState::Write(CACLLink& /*aContext*/, const TDesC8& /*aData*/, TUint /*aOptions*/, TSockAddr* /*aAddr*/) const |
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206 { |
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207 LOG_FUNC |
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208 LOG(_L("CACLLink: Write in base state - Dropping data...")); |
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209 return 0; |
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210 } |
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211 |
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212 TBool TACLLinkState::IsIdle() const |
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213 { |
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214 LOG_FUNC |
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215 return EFalse; |
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216 } |
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217 |
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218 void TACLLinkState::Park(CACLLink& /*aContext*/) const |
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219 { |
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220 LOG_FUNC |
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221 // ignore |
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222 } |
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223 |
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224 void TACLLinkState::Unpark(CACLLink& /*aContext*/) const |
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225 { |
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226 LOG_FUNC |
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227 // ignore |
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228 } |
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229 |
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230 //---------------------------------------------------------------------------------- |
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231 |
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232 TACLLinkStateListening::TACLLinkStateListening(CACLLinkStateFactory& aFactory) |
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233 : TACLLinkState(aFactory) |
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234 { |
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235 LOG_FUNC |
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236 STATENAME("Listening"); |
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237 } |
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238 |
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239 void TACLLinkStateListening::Enter(CACLLink& aContext) const |
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240 { |
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241 LOG_FUNC |
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242 TInt err = aContext.iLinksMan.AddListener(aContext, EACLLink); |
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243 if (err) |
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244 { |
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245 __ASSERT_DEBUG(err!=KErrInUse, PanicInState(EBTACLAlreadyBoundToPhysicalLink)); |
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246 aContext.iSocket->Error(err, MSocketNotify::EErrorFatal); |
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247 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
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248 } |
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249 } |
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250 |
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251 |
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252 TBool TACLLinkStateListening::ConnectRequest(CACLLink& aContext, |
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253 const TBTConnect& /*aConnectDetails*/, |
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254 const CPhysicalLink& aPhysicalLink) const |
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255 { |
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256 LOG_FUNC |
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257 // ah! we have a connection |
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258 /* super - now BT1.1/1.2 says we don't need to do anything - |
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259 ACL is here for free: with same handle as PhysicalLink. |
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260 We do however need to introduce ourselves to ACL Q |
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261 */ |
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262 LOG(_L("CACLLink: Physical Channel Up - Spawning...")); |
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263 |
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264 // clone the sap - we only support *one* child at present since |
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265 // we dont expose ACL sockets to ESOCK - only to L2CAP who will |
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266 // only attempt to Start one child at a time |
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267 TRAPD(err, SpawnL(aContext, const_cast<CPhysicalLink&>(aPhysicalLink))); |
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268 |
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269 return (err==KErrNone); |
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270 } |
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271 |
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272 |
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273 void TACLLinkStateListening::SpawnL(CACLLink& aContext, CPhysicalLink& aPhysicalLink) const |
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274 /** |
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275 Called when a PassiveSAP wants to create a (connected) child of itself |
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276 **/ |
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277 { |
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278 LOG_FUNC |
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279 //Listening SAP only keeps one pointer to accepting SAP so we |
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280 //can't have more than one outstanding accepting SAP |
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281 if(aContext.iChild) |
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282 { |
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283 LOG(_L("TACLLinkStateListening::SpawnL: there is already an outstanding accepting SAP, can't spawn now")); |
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284 User::Leave(KErrInUse); |
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285 } |
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286 |
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287 CACLLink* child = CACLLink::NewLC(aContext.iLinksMan, |
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288 &aPhysicalLink, |
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289 aContext.iProtocol); |
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290 |
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291 User::LeaveIfError(child->BindLink(EACLLink, aPhysicalLink)); |
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292 CleanupStack::Pop(child); |
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293 |
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294 // tell child about parent |
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295 child->ListeningSAP() = &aContext; |
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296 |
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297 // and parent about child |
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298 aContext.iChild = child; |
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299 |
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300 // configure the SAP |
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301 child->iRemoteDev = aPhysicalLink.BDAddr(); |
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302 child->iLocalPort = aContext.iLocalPort; |
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303 |
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304 // transition for child is Closed->WaitForStart |
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305 ChangeState(*child, CACLLinkStateFactory::EAccepting); |
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306 } |
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307 |
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308 void TACLLinkStateListening::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType aCloseType) const |
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309 { |
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310 LOG_FUNC |
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311 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
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312 |
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313 if(aContext.iChild) |
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314 { |
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315 //As soon as this method returns, this SAP could be deleted. |
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316 //Notify the child. |
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317 aContext.iChild->Shutdown(CServProviderBase::EImmediate); |
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318 |
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319 //If the child was in EAccepting state, the shutdown will move it to EClosing. It |
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320 //will still be bound to PHY, and when the ConnectComplete arrives the PHY will |
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321 //still route it to the child. If the parent has been deleted by then, the child |
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322 //will cause a panic. The best thing to do is delete the child now. |
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323 //N.B. It is important to Shutdown the child before deleting it, because if it |
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324 //was in EAccepting state calling Shutdown stops its watchdog. |
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325 aContext.DeleteChild(aContext.iChild); |
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326 aContext.iChild=NULL; //Not sure if this is needed, but it'll do no harm. |
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327 } |
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328 |
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329 if (aCloseType == CServProviderBase::ENormal) |
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330 { |
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331 aContext.Socket()->CanClose(); |
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332 } |
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333 } |
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334 |
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335 void TACLLinkStateListening::Deletion(CACLLink& aContext) const |
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336 { |
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337 LOG_FUNC |
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338 delete aContext.iChild; |
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339 } |
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340 |
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341 void TACLLinkStateListening::Exit(CACLLink& aContext) const |
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342 { |
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343 LOG_FUNC |
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344 aContext.iLinksMan.RemoveListener(aContext); |
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345 } |
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346 |
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347 void TACLLinkStateListening::Error(CACLLink& /*aContext*/, TInt __DEBUG_ONLY(aError)) const |
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348 { |
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349 LOG_FUNC |
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350 // Don't propagate the error as listeners don't care if the hardware has gone down |
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351 __ASSERT_DEBUG(aError==KErrHardwareNotAvailable, PanicInState(EBTACLSAPUnexpectedEvent)); |
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352 } |
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353 |
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354 //---------------------------------------------------------------------------------- |
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355 |
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356 TACLLinkStateAccepting::TACLLinkStateAccepting(CACLLinkStateFactory& aFactory) |
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357 : TACLLinkState(aFactory) |
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358 { |
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359 LOG_FUNC |
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360 STATENAME("Accepting"); |
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361 } |
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362 |
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363 void TACLLinkStateAccepting::Enter(CACLLink& aContext) const |
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364 { |
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365 LOG_FUNC |
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366 // start watchdog |
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367 aContext.iAcceptWatchdog.Start(); |
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368 // If the link is accepting then it must be being remotely initiated. |
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369 aContext.SetInitiationState(CACLLink::ERemotelyInitiated); |
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370 if(aContext.iLinksMan.IsAcceptPairedOnlyMode()) |
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371 { |
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372 // Start an access request for appropriate security - this will start as |
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373 // the physical link is established. |
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374 aContext.StartAccessRequest(*(aContext.ListeningSAP())); |
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375 } |
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376 } |
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377 |
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378 void TACLLinkStateAccepting::Exit(CACLLink& aContext) const |
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379 { |
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380 LOG_FUNC |
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381 //Ensure watchdog has been cancelled (safe to call Cancel multiple times) |
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382 aContext.iAcceptWatchdog.Cancel(); |
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383 } |
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384 |
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385 void TACLLinkStateAccepting::ConnectComplete(CACLLink& aContext, const TBTConnect& /*aConnect*/) const |
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386 { |
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387 LOG_FUNC |
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388 // cancel watchdog |
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389 aContext.iAcceptWatchdog.Cancel(); |
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390 |
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391 // must wait until started |
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392 ChangeState(aContext, CACLLinkStateFactory::EWaitForStart); |
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393 // let the listening Socket know... |
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394 __ASSERT_DEBUG(aContext.ListeningSAP()->Socket(), PanicInState(EBTACLSAPNullSocket)); |
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395 aContext.ListeningSAP()->Socket()->ConnectComplete(aContext); // tell listening socket about its new SAP |
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396 } |
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397 |
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398 void TACLLinkStateAccepting::Timeout(CACLLink& aContext, TBasebandTimeout aTimeout) const |
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399 { |
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400 LOG_FUNC |
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401 if (aTimeout == EAccept) |
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402 { |
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403 // the accept never worked - give up |
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404 Error(aContext, KErrTimedOut); |
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405 } |
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406 } |
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407 |
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408 void TACLLinkStateAccepting::Deletion(CACLLink& aContext) const |
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409 { |
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410 LOG_FUNC |
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411 aContext.ListeningSAP()->RemoveChild(&aContext); |
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412 } |
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413 |
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414 void TACLLinkStateAccepting::Disconnection(CACLLink& aContext) const |
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415 { |
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416 LOG_FUNC |
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417 // This will be called if there is a hardware error - give up |
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418 Error(aContext, KErrDisconnected); |
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419 } |
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420 |
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421 void TACLLinkStateAccepting::Error(CACLLink& aContext, TInt /*aError*/) const |
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422 { |
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423 LOG_FUNC |
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424 // unbind from physical link |
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425 aContext.UnbindLink(EACLLink); |
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426 // cancel watchdog |
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427 aContext.iAcceptWatchdog.Cancel(); |
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428 aContext.ListeningSAP()->DeleteChild(&aContext); |
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429 } |
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430 |
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431 void TACLLinkStateAccepting::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType /*aCloseType*/) const |
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432 { |
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433 LOG_FUNC |
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434 // we're not wanted - close |
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435 ChangeState(aContext, CACLLinkStateFactory::EClosing); |
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436 } |
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437 |
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438 //---------------------------------------------------------------------------------- |
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439 |
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440 |
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441 TACLLinkStateWaitForStart::TACLLinkStateWaitForStart(CACLLinkStateFactory& aFactory) |
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442 : TACLLinkState(aFactory) |
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443 { |
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444 LOG_FUNC |
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445 STATENAME("WaitForStart"); |
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446 } |
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447 |
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448 void TACLLinkStateWaitForStart::Enter(CACLLink& __DEBUG_ONLY(aContext)) const |
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449 { |
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450 LOG_FUNC |
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451 __ASSERT_DEBUG(aContext.ListeningSAP(), PanicInState(EBTACLSAPParentlessChild)); |
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452 } |
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453 |
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454 void TACLLinkStateWaitForStart::Start(CACLLink& aContext) const |
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455 { |
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456 LOG_FUNC |
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457 // transfer ownership to higher entity |
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458 aContext.ListeningSAP()->RemoveChild(&aContext); |
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459 aContext.ListeningSAP() = NULL; |
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460 TInt err = aContext.OpenLogicalLink(); |
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461 if (err == KErrNone) |
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462 { |
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463 ChangeState(aContext, CACLLinkStateFactory::EOpen); |
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464 } |
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465 else |
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466 { |
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467 Error(aContext, err); |
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468 } |
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469 } |
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470 |
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471 void TACLLinkStateWaitForStart::Deletion(CACLLink& aContext) const |
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472 { |
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473 LOG_FUNC |
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474 aContext.ListeningSAP()->RemoveChild(&aContext); |
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475 } |
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476 |
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477 void TACLLinkStateWaitForStart::Error(CACLLink& aContext, TInt /*aError*/) const |
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478 { |
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479 LOG_FUNC |
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480 ChangeState(aContext, CACLLinkStateFactory::EWaitForStartError); |
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481 } |
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482 |
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483 void TACLLinkStateWaitForStart::Park(CACLLink& aContext) const |
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484 { |
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485 LOG_FUNC |
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486 // blimey! already gone into park - dont tell socket anything |
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487 ChangeState(aContext, CACLLinkStateFactory::EWaitForStartParked); |
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488 } |
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489 |
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490 void TACLLinkStateWaitForStart::Disconnection(CACLLink& aContext) const |
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491 { |
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492 LOG_FUNC |
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493 aContext.ListeningSAP()->DeleteChild(&aContext); |
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494 } |
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495 |
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496 void TACLLinkStateWaitForStart::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType /*aCloseType*/) const |
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497 { |
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498 LOG_FUNC |
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499 // just go |
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500 ChangeState(aContext, CACLLinkStateFactory::EClosing); |
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501 } |
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502 |
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503 //---------------------------------------------------------------------------------- |
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504 |
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505 TACLLinkStateWaitForStartError::TACLLinkStateWaitForStartError(CACLLinkStateFactory& aFactory) |
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506 : TACLLinkState(aFactory) |
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507 { |
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508 LOG_FUNC |
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509 STATENAME("Error"); |
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510 } |
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511 |
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512 void TACLLinkStateWaitForStartError::Start(CACLLink& aContext) const |
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513 { |
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514 LOG_FUNC |
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515 // summat went wrong - close and remove this acceptor |
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516 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
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517 aContext.Socket()->Disconnect(); |
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518 |
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519 aContext.ListeningSAP()->RemoveChild(&aContext); |
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520 } |
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521 |
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522 void TACLLinkStateWaitForStartError::Disconnection(CACLLink& /*aContext*/) const |
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523 { |
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524 LOG_FUNC |
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525 //Release build should silently ignore the event |
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526 __ASSERT_DEBUG(EFalse,PanicInState(EBTACLSAPUnexpectedEvent)); |
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527 } |
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528 |
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529 void TACLLinkStateWaitForStartError::Error(CACLLink& /*aContext*/, TInt /*aError*/) const |
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530 { |
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531 LOG_FUNC |
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532 //Release build should silently ignore the event |
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533 __ASSERT_DEBUG(EFalse,PanicInState(EBTACLSAPUnexpectedEvent)); |
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534 } |
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535 |
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536 void TACLLinkStateWaitForStartError::Deletion(CACLLink& aContext) const |
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537 /* |
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538 In WaitForStartError state we expect ESock to send a Start. But deletion could occur |
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539 if ESock deletes the parent SAP. |
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540 */ |
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541 { |
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542 LOG_FUNC |
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543 aContext.ListeningSAP()->RemoveChild(&aContext); |
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544 } |
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545 |
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546 //---------------------------------------------------------------------------------- |
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547 |
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548 TACLLinkStateWaitForStartParked::TACLLinkStateWaitForStartParked(CACLLinkStateFactory& aFactory) |
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549 : TACLLinkStateWaitForStart(aFactory) |
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550 { |
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551 LOG_FUNC |
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552 STATENAME("WaitForStartParked"); |
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553 } |
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554 |
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555 void TACLLinkStateWaitForStartParked::Start(CACLLink& aContext) const |
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556 { |
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557 LOG_FUNC |
|
558 // transfer ownership to higher entity |
|
559 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
560 aContext.ListeningSAP() = NULL; |
|
561 ChangeState(aContext, CACLLinkStateFactory::EOpenParked); |
|
562 } |
|
563 |
|
564 void TACLLinkStateWaitForStartParked::Unpark(CACLLink& aContext) const |
|
565 { |
|
566 LOG_FUNC |
|
567 // that's nice - un-parked! |
|
568 ChangeState(aContext, CACLLinkStateFactory::EWaitForStart); |
|
569 } |
|
570 |
|
571 //---------------------------------------------------------------------------------- |
|
572 |
|
573 TACLLinkStateWaitForLink::TACLLinkStateWaitForLink(CACLLinkStateFactory& aFactory) |
|
574 : TACLLinkState(aFactory) |
|
575 { |
|
576 LOG_FUNC |
|
577 STATENAME("WaitForLink"); |
|
578 } |
|
579 |
|
580 void TACLLinkStateWaitForLink::ConnectComplete(CACLLink& aContext, const TBTConnect& aConnectDetails) const |
|
581 { |
|
582 LOG_FUNC |
|
583 /* super - now BT1.1/1.2 says we don't need to do anything - |
|
584 ACL is here for free: with same handle as PhysicalLink. |
|
585 We do however need to introduce ourselves to ACL Q |
|
586 */ |
|
587 LOG(_L("CACLLink: Physical Channel Up")) |
|
588 __ASSERT_DEBUG(aConnectDetails.iBdaddr == aContext.iPhysicalLink->BDAddr(), PanicInState(EBTACLSAPWrongPhysicalLink)); |
|
589 aContext.iRemoteDev = aConnectDetails.iBdaddr; |
|
590 TInt err = aContext.OpenLogicalLink(); |
|
591 if (err == KErrNone) |
|
592 { |
|
593 ChangeState(aContext, CACLLinkStateFactory::EOpen); |
|
594 aContext.Socket()->ConnectComplete(); |
|
595 } |
|
596 else |
|
597 { |
|
598 Error(aContext, err); |
|
599 } |
|
600 } |
|
601 |
|
602 void TACLLinkStateWaitForLink::Error(CACLLink& aContext, TInt aError) const |
|
603 { |
|
604 LOG_FUNC |
|
605 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
|
606 aContext.Socket()->Error(aError, MSocketNotify::EErrorConnect); |
|
607 } |
|
608 |
|
609 void TACLLinkStateWaitForLink::Exit(CACLLink& /*aContext*/) const |
|
610 { |
|
611 LOG_FUNC |
|
612 } |
|
613 |
|
614 void TACLLinkStateWaitForLink::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType /*aCloseType*/) const |
|
615 { |
|
616 LOG_FUNC |
|
617 // just change to closing - we'll get notified of PhyUp, but that'll get swallowed |
|
618 // and the connection will timeout and die. |
|
619 ChangeState(aContext, CACLLinkStateFactory::EClosing); |
|
620 } |
|
621 |
|
622 void TACLLinkStateWaitForLink::Disconnection(CACLLink& aContext) const |
|
623 { |
|
624 LOG_FUNC |
|
625 //Physical link is down |
|
626 Error(aContext, KErrCouldNotConnect); |
|
627 } |
|
628 |
|
629 //---------------------------------------------------------------------------------- |
|
630 |
|
631 TACLLinkStateOpen::TACLLinkStateOpen(CACLLinkStateFactory& aFactory) |
|
632 : TACLLinkState(aFactory) |
|
633 { |
|
634 LOG_FUNC |
|
635 STATENAME("Open"); |
|
636 } |
|
637 |
|
638 void TACLLinkStateOpen::Enter(CACLLink& /*aContext*/) const |
|
639 { |
|
640 LOG_FUNC |
|
641 } |
|
642 |
|
643 void TACLLinkStateOpen::Disconnection(CACLLink& aContext) const |
|
644 { |
|
645 LOG_FUNC |
|
646 // an unexpected phy loss |
|
647 LOG(_L("CACLLink: Physical Channel Down")) |
|
648 |
|
649 // No more data will appear so close |
|
650 aContext.CloseLogicalLink(); |
|
651 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
|
652 aContext.Socket()->Disconnect(); |
|
653 } |
|
654 |
|
655 void TACLLinkStateOpen::Error(CACLLink& aContext, TInt aError) const |
|
656 { |
|
657 LOG_FUNC |
|
658 // eg for weird times when we get another (PHY) connect complete with error! |
|
659 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
|
660 aContext.Socket()->Error(aError, MSocketNotify::EErrorAllOperations); |
|
661 } |
|
662 |
|
663 TUint TACLLinkStateOpen::Write(CACLLink& aContext, const TDesC8& aData, TUint aOptions, TSockAddr* aAddr) const |
|
664 { |
|
665 LOG_FUNC |
|
666 // Note: This method returns the number of data |
|
667 // fragments written (normally 1), NOT the number of bytes. |
|
668 LOG(_L("TACLLinkStateOpen::Write")); |
|
669 |
|
670 // we only allow 8 bit flags |
|
671 __ASSERT_DEBUG(aOptions < KMaxTUint8, PanicInState(EBTACLSAPBadFlagsOnWrite)); |
|
672 |
|
673 TUint8 flags = static_cast<TUint8>(aOptions); |
|
674 |
|
675 // check not trying to do piconet broadcast - active bc is OK |
|
676 __ASSERT_DEBUG(!((flags >> KPacketPBBCFlagShift) & KPacketBCFlagMask), |
|
677 PanicInState(EBTACLSAPDoesNotSupportPiconetBroadcast)); |
|
678 |
|
679 // check that L2CAP isn't trying to broadcast |
|
680 __ASSERT_DEBUG(!(((flags >> KPacketPBBCFlagShift) & KPacketBCFlagMask) |
|
681 && aContext.iLocalPort==EACLPortL2CAP), PanicInState(EBTACLSAPDoesNotSupportBroadcastL2CAP)); |
|
682 |
|
683 |
|
684 CACLDataQController& aclQctrl = aContext.iProtocol.ACLController(); |
|
685 CACLDataItem* dataItem = aclQctrl.GetFreeItem(); // we don't own it - but might be NULL |
|
686 |
|
687 TUint retVal; |
|
688 |
|
689 if (!dataItem) |
|
690 { |
|
691 // no space on pool |
|
692 LOG(_L("\tno space in ACL data pool- blocking socket")) |
|
693 aContext.iSocketBlocked = ETrue; |
|
694 retVal = 0; // could not write anything - notify later |
|
695 } |
|
696 else |
|
697 { |
|
698 // space on pool...so format get the HCIFacade to format and queue the frame |
|
699 dataItem->SetElementHandle(aAddr); |
|
700 retVal = aContext.DoWrite(*dataItem, aclQctrl, aData, flags); |
|
701 } |
|
702 |
|
703 LOG1(_L("TACLLinkStateOpen::Write retVal = %d"), retVal); |
|
704 return retVal; |
|
705 } |
|
706 |
|
707 |
|
708 void TACLLinkStateOpen::DataReceived(CACLLink& aContext, TUint8 aFlag, const TDesC8& aData) const |
|
709 { |
|
710 LOG_FUNC |
|
711 aContext.NotifyDataToSocket(aFlag, aData); |
|
712 } |
|
713 |
|
714 void TACLLinkStateOpen::Park(CACLLink& aContext) const |
|
715 { |
|
716 LOG_FUNC |
|
717 ChangeState(aContext, CACLLinkStateFactory::EOpenParked); |
|
718 } |
|
719 |
|
720 void TACLLinkStateOpen::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType /*aCloseType*/) const |
|
721 { |
|
722 LOG_FUNC |
|
723 // an ACL link cannot be closed with the underlying PHY going. |
|
724 // to congrue with the spec we keep this object all the time the PHY |
|
725 // is around. |
|
726 // __ASSERT_DEBUG(aCloseType == CServProviderBase::ENormal, PanicInState(EBTACLSAPNotSupportedFeature)); |
|
727 |
|
728 // Change state first in case the ACL is currently in Park mode. |
|
729 // This will allow the logic in the Exit of the Open Park state |
|
730 // to un-park the link before it is disconnected. |
|
731 ChangeState(aContext, CACLLinkStateFactory::EClosing); // we close when the PHY says |
|
732 } |
|
733 |
|
734 |
|
735 void TACLLinkStateOpen::Exit(CACLLink& /*aContext*/) const |
|
736 { |
|
737 LOG_FUNC |
|
738 } |
|
739 |
|
740 //---------------------------------------------------------------------------------- |
|
741 |
|
742 TACLLinkStateOpenParked::TACLLinkStateOpenParked(CACLLinkStateFactory& aFactory) |
|
743 : TACLLinkStateOpen(aFactory) |
|
744 { |
|
745 LOG_FUNC |
|
746 STATENAME("OpenParked"); |
|
747 } |
|
748 |
|
749 void TACLLinkStateOpenParked::Enter(CACLLink& aContext) const |
|
750 { |
|
751 LOG_FUNC |
|
752 // signal ACL Data Q controller that we've parked up |
|
753 aContext.ParkLogicalLink(); |
|
754 } |
|
755 |
|
756 TUint TACLLinkStateOpenParked::Write(CACLLink& /*aContext*/, const TDesC8& /*aData*/, TUint /*aOptions*/, TSockAddr* /*aAddr*/) const |
|
757 { |
|
758 LOG_FUNC |
|
759 // can't - parked; and don't support piconet broadcast yet... |
|
760 // for active broadcast support that in open state |
|
761 return 0; |
|
762 } |
|
763 |
|
764 void TACLLinkStateOpenParked::Unpark(CACLLink& aContext) const |
|
765 { |
|
766 LOG_FUNC |
|
767 ChangeState(aContext, CACLLinkStateFactory::EOpen); |
|
768 |
|
769 // flow control on socket |
|
770 aContext.Socket()->CanSend(); |
|
771 } |
|
772 |
|
773 void TACLLinkStateOpenParked::DataReceived(CACLLink& aContext, TUint8 aFlag, const TDesC8& aData) const |
|
774 { |
|
775 LOG_FUNC |
|
776 // We handle data in this state to allow for the race condition between |
|
777 // the Mode Change [Park] event and data that was received at the HC just |
|
778 // prior to Park mode being entered. |
|
779 aContext.NotifyDataToSocket(aFlag, aData); |
|
780 } |
|
781 |
|
782 void TACLLinkStateOpenParked::Exit(CACLLink& aContext) const |
|
783 { |
|
784 LOG_FUNC |
|
785 // signal ACL Data Q controller that we're un-parking |
|
786 aContext.UnparkLogicalLink(); |
|
787 } |
|
788 |
|
789 //---------------------------------------------------------------------------------- |
|
790 |
|
791 TACLLinkStateClosing::TACLLinkStateClosing(CACLLinkStateFactory& aFactory) |
|
792 : TACLLinkState(aFactory) |
|
793 { |
|
794 LOG_FUNC |
|
795 STATENAME("Closing"); |
|
796 } |
|
797 |
|
798 void TACLLinkStateClosing::ActiveOpen(CACLLink& aContext) const |
|
799 { |
|
800 LOG_FUNC |
|
801 // erk - have been asked to Open as we're closing down |
|
802 // the link hasn't gone yet, so just say it's there! |
|
803 |
|
804 // Set as locally initiated (even if previously it was remotely initiated) |
|
805 aContext.SetInitiationState(CACLLink::ELocallyInitiated); |
|
806 ChangeState(aContext, CACLLinkStateFactory::EOpen); |
|
807 aContext.Socket()->ConnectComplete(); |
|
808 } |
|
809 |
|
810 void TACLLinkStateClosing::Shutdown(CACLLink& /*aContext*/, CServProviderBase::TCloseType /*aCloseType*/) const |
|
811 { |
|
812 LOG_FUNC |
|
813 // we are! just ignore and continue |
|
814 } |
|
815 |
|
816 void TACLLinkStateClosing::Disconnection(CACLLink& aContext) const |
|
817 { |
|
818 LOG_FUNC |
|
819 // an expected phy down! |
|
820 |
|
821 // No more data will appear, so close |
|
822 aContext.CloseLogicalLink(); |
|
823 |
|
824 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
|
825 aContext.Socket()->CanClose(); |
|
826 } |
|
827 |
|
828 void TACLLinkStateClosing::Enter(CACLLink& aContext) const |
|
829 { |
|
830 LOG_FUNC |
|
831 // Inform the physical link that this link has become idle. |
|
832 aContext.LinkStateIdle(); |
|
833 } |
|
834 |
|
835 void TACLLinkStateClosing::Deletion(CACLLink& /*aContext*/) const |
|
836 { |
|
837 LOG_FUNC |
|
838 // allowed |
|
839 } |
|
840 |
|
841 TBool TACLLinkStateClosing::IsIdle() const |
|
842 { |
|
843 LOG_FUNC |
|
844 return ETrue; |
|
845 } |
|
846 |
|
847 void TACLLinkStateClosing::DataReceived(CACLLink& aContext, TUint8 aFlag, const TDesC8& aData) const |
|
848 { |
|
849 LOG_FUNC |
|
850 // got data for socket - that's fine: deliver it to decide |
|
851 aContext.NotifyDataToSocket(aFlag, aData); |
|
852 } |
|
853 |
|
854 TUint TACLLinkStateClosing::Write(CACLLink& /*aContext*/, const TDesC8& /*aData*/, TUint /*aOptions*/, TSockAddr* /*aAddr*/) const |
|
855 { |
|
856 LOG_FUNC |
|
857 //Drop, we are not interested in data anymore. |
|
858 return 0; |
|
859 } |
|
860 |
|
861 void TACLLinkStateClosing::Error(CACLLink& aContext, TInt /*aError*/) const |
|
862 { |
|
863 LOG_FUNC |
|
864 // This method is reached by receiving a Disconnection Complete Event with Status field != EOk, |
|
865 // in this case we don't want to error the socket - so instead it is just closed |
|
866 ChangeState(aContext, CACLLinkStateFactory::EClosed); |
|
867 aContext.Socket()->CanClose(); |
|
868 } |
|
869 |
|
870 //---------------------------------------------------------------------------------- |
|
871 |
|
872 TACLLinkStateClosed::TACLLinkStateClosed(CACLLinkStateFactory& aFactory) |
|
873 : TACLLinkState(aFactory) |
|
874 { |
|
875 LOG_FUNC |
|
876 STATENAME("Closed"); |
|
877 } |
|
878 |
|
879 void TACLLinkStateClosed::Enter(CACLLink& aContext) const |
|
880 { |
|
881 LOG_FUNC |
|
882 aContext.ClearInitiationState(); // once closed, there is no direction |
|
883 aContext.ClearPhysicalLink(); |
|
884 } |
|
885 |
|
886 void TACLLinkStateClosed::Start(CACLLink& /*aContext*/) const |
|
887 { |
|
888 LOG_FUNC |
|
889 // gulp this - don't need to transition |
|
890 } |
|
891 |
|
892 void TACLLinkStateClosed::Shutdown(CACLLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
893 { |
|
894 LOG_FUNC |
|
895 if (aCloseType != CServProviderBase::EImmediate) |
|
896 { |
|
897 aContext.Socket()->CanClose(); |
|
898 } |
|
899 } |
|
900 |
|
901 void TACLLinkStateClosed::ActiveOpen(CACLLink& aContext) const |
|
902 { |
|
903 LOG_FUNC |
|
904 // create ACL link |
|
905 ChangeState(aContext, CACLLinkStateFactory::EWaitForLink); |
|
906 TRAPD(err, aContext.BindAndConnectPhysicalLinkL()); |
|
907 |
|
908 if (err != KErrNone) |
|
909 { |
|
910 aContext.Error(err); |
|
911 } |
|
912 else |
|
913 { |
|
914 // Successful active open means that we've been locally initiated. |
|
915 aContext.SetInitiationState(CACLLink::ELocallyInitiated); |
|
916 } |
|
917 } |
|
918 |
|
919 TInt TACLLinkStateClosed::PassiveOpen(CACLLink& aContext, TUint __DEBUG_ONLY(aQueSize)) const |
|
920 { |
|
921 LOG_FUNC |
|
922 __ASSERT_DEBUG(aQueSize == 1, PanicInState(EBTACLSAPUnsupportedQueSize)); |
|
923 // only support a QueSize of 1 - we don't expose the ACL Links to ESOCK |
|
924 // for use by RSockets; furhter we enforce L2CAP to *start* us synchronously |
|
925 // upon ACL link up |
|
926 |
|
927 ChangeState(aContext, CACLLinkStateFactory::EListening); |
|
928 |
|
929 return KErrNone; |
|
930 } |
|
931 |
|
932 void TACLLinkStateClosed::Deletion(CACLLink& /*aContext*/) const |
|
933 { |
|
934 LOG_FUNC |
|
935 // allowed deletion |
|
936 } |
|
937 |
|
938 TBool TACLLinkStateClosed::IsIdle() const |
|
939 { |
|
940 LOG_FUNC |
|
941 return ETrue; |
|
942 } |
|
943 |
|
944 //---------------------------------------------------------------------------------- |
|
945 |
|
946 CACLLink* CACLLink::NewLC(CPhysicalLinksManager& aLinksMan, CPhysicalLink* aConnection, CLinkMgrProtocol& aProtocol) |
|
947 { |
|
948 LOG_STATIC_FUNC |
|
949 CACLLink* s = new(ELeave) CACLLink(aLinksMan, aConnection, aProtocol); |
|
950 CleanupStack::PushL(s); |
|
951 s->ConstructL(); |
|
952 return s; |
|
953 } |
|
954 |
|
955 |
|
956 CACLLink* CACLLink::NewL(CPhysicalLinksManager& aLinksMan, CPhysicalLink* aConnection, CLinkMgrProtocol& aProtocol) |
|
957 { |
|
958 LOG_STATIC_FUNC |
|
959 CACLLink* s = NewLC(aLinksMan, aConnection, aProtocol); |
|
960 CleanupStack::Pop(s); |
|
961 return s; |
|
962 } |
|
963 |
|
964 |
|
965 CACLLink::CACLLink(CPhysicalLinksManager& aManager, |
|
966 CPhysicalLink* aConnection, |
|
967 CLinkMgrProtocol& aProtocol) |
|
968 : CBTBasebandSAP(aManager, aConnection), |
|
969 iProtocol(aProtocol), |
|
970 iSocketBlocked(EFalse) |
|
971 { |
|
972 LOG_FUNC |
|
973 iState = &iProtocol.ACLStateFactory().GetState(CACLLinkStateFactory::EClosed); |
|
974 |
|
975 // Hard-coded security for ACL level security (not service level). |
|
976 // MITM desired is applied to ensure authentication takes place (if |
|
977 // since authentication is normally eq. MITM protection). Pairing |
|
978 // is prevented where appropriate. |
|
979 // (See Paired Only Connections Mode for why this is used). |
|
980 iSecurity.SetAuthentication(EMitmDesired); |
|
981 iSecurity.SetEncryption(EFalse); |
|
982 iSecurity.SetAuthorisation(EFalse); |
|
983 } |
|
984 |
|
985 CACLLink::~CACLLink() |
|
986 { |
|
987 LOG_FUNC |
|
988 // CloseLogicalLink() should have been called by now, but just in case... |
|
989 if ( iHandle != KInvalidConnectionHandle ) |
|
990 { |
|
991 CloseLogicalLink(); |
|
992 } |
|
993 |
|
994 // There could be an access request outstanding |
|
995 CancelAccessRequest(); |
|
996 |
|
997 iState->Deletion(*this); |
|
998 |
|
999 UnbindLink(EACLLink); |
|
1000 |
|
1001 __ASSERT_DEBUG(!iChild, Panic(EAclSapChildStillPresentAtDestruction)); |
|
1002 } |
|
1003 |
|
1004 void CACLLink::ConstructL() |
|
1005 { |
|
1006 LOG_FUNC |
|
1007 CBTBasebandSAP::ConstructL(); |
|
1008 } |
|
1009 |
|
1010 void CACLLink::ActiveOpen() |
|
1011 { |
|
1012 LOG_FUNC |
|
1013 iState->ActiveOpen(*this); |
|
1014 } |
|
1015 |
|
1016 void CACLLink::BindAndConnectPhysicalLinkL() |
|
1017 { |
|
1018 LOG_FUNC |
|
1019 if(!(Baseband().IsACLPossible())) |
|
1020 { |
|
1021 User::Leave(KErrInsufficientBasebandResources); |
|
1022 } |
|
1023 |
|
1024 iPhysicalLink = iLinksMan.FindPhysicalLink(iRemoteDev); |
|
1025 |
|
1026 if (iPhysicalLink) |
|
1027 { |
|
1028 TBTBasebandLinkState::TLinkState linkState = iPhysicalLink->LinkState().LinkState(); |
|
1029 if (linkState == TBTBasebandLinkState::ELinkDown) |
|
1030 { |
|
1031 // Incoming pending physical link connection. We must error here as we cannot |
|
1032 // know if the incoming connection will be successful or not. |
|
1033 iPhysicalLink = NULL; |
|
1034 User::Leave(KErrPendingPhysicalLink); |
|
1035 } |
|
1036 |
|
1037 User::LeaveIfError(BindLink(EACLLink, *iPhysicalLink)); |
|
1038 |
|
1039 if (linkState == TBTBasebandLinkState::ELinkUp) |
|
1040 { |
|
1041 // We have an existing, connected, physical link so we can complete this request |
|
1042 TBTConnect connect; |
|
1043 connect.iBdaddr = iPhysicalLink->BDAddr(); |
|
1044 ConnectComplete(connect); |
|
1045 return; |
|
1046 } |
|
1047 |
|
1048 // If we get here then we must have a pending active physical link connection. |
|
1049 // As we bind to it above then this connection request we be completed when |
|
1050 // the physical link is completed. |
|
1051 __ASSERT_ALWAYS(linkState == TBTBasebandLinkState::ELinkPending, Panic(EBTBasebandInvalidLinkState)); |
|
1052 } |
|
1053 else |
|
1054 { |
|
1055 // New physical link connection request |
|
1056 CPhysicalLink* physicalLink = &iLinksMan.NewPhysicalLinkL(iRemoteDev); |
|
1057 // physicalLink is owned by the physical links manager. |
|
1058 User::LeaveIfError(BindLink(EACLLink, *physicalLink)); |
|
1059 TInt err = iPhysicalLink->Connect(); |
|
1060 if(err != KErrNone) |
|
1061 { |
|
1062 // If we failed to connect then we should roll back the attachment |
|
1063 ClearPhysicalLink(); |
|
1064 User::Leave(err); |
|
1065 } |
|
1066 } |
|
1067 } |
|
1068 |
|
1069 TInt CACLLink::SetLocalName(TSockAddr& aAddr) |
|
1070 { |
|
1071 LOG_FUNC |
|
1072 // Copy this address into iLocal* |
|
1073 // Overwrite their BTAddr if it's wrong |
|
1074 // Must check that the endpoint required is free |
|
1075 TACLSockAddr aclAddr = TACLSockAddr::Cast(aAddr); |
|
1076 TACLPort port = aclAddr.Port(); |
|
1077 |
|
1078 iLocalPort=port; |
|
1079 return KErrNone; |
|
1080 } |
|
1081 |
|
1082 TInt CACLLink::SetRemName(TSockAddr& aAddr) |
|
1083 { |
|
1084 LOG_FUNC |
|
1085 // Copy this over |
|
1086 __ASSERT_DEBUG(!ListeningSAP(), Panic(EBTACLSAPListenerSettingName)); // not applicable to listeners |
|
1087 |
|
1088 TACLSockAddr bbAddr(aAddr); // convert |
|
1089 iRemoteDev = bbAddr.BTAddr(); |
|
1090 |
|
1091 //try to get the details about the intended remote now |
|
1092 return KErrNone; |
|
1093 } |
|
1094 |
|
1095 TInt CACLLink::PassiveOpen(TUint aQueSize) |
|
1096 { |
|
1097 LOG_FUNC |
|
1098 return iState->PassiveOpen(*this, aQueSize); |
|
1099 } |
|
1100 |
|
1101 |
|
1102 TInt CACLLink::GetOption(TUint aLevel,TUint aName,TDes8& aOption) const |
|
1103 { |
|
1104 LOG_FUNC |
|
1105 TInt ret = KErrNone; |
|
1106 |
|
1107 if (aLevel != KSolBtLM && aLevel != KSolBtACL) |
|
1108 ret = KErrNotSupported; |
|
1109 else |
|
1110 { |
|
1111 if (aLevel == KSolBtACL) |
|
1112 { |
|
1113 ret = DoACLGetOption(aName, aOption); |
|
1114 } |
|
1115 else |
|
1116 { |
|
1117 if (iPhysicalLink) |
|
1118 { |
|
1119 // forward to PHY |
|
1120 ret = iPhysicalLink->GetOption(aLevel, aName, aOption); |
|
1121 } |
|
1122 else |
|
1123 { |
|
1124 // ho-hum! |
|
1125 ret = KErrNotReady; |
|
1126 } |
|
1127 } |
|
1128 } |
|
1129 return ret; |
|
1130 } |
|
1131 |
|
1132 |
|
1133 TInt CACLLink::DoACLGetOption(TUint aName,TDes8& aOption) const |
|
1134 { |
|
1135 LOG_FUNC |
|
1136 TInt ret = KErrNone; |
|
1137 |
|
1138 switch (aName) |
|
1139 { |
|
1140 case ELMOutboundACLSize: |
|
1141 { |
|
1142 if (aOption.Length() != sizeof(TInt)) |
|
1143 { |
|
1144 ret = KErrArgument; |
|
1145 } |
|
1146 TInt val = iProtocol.ACLPacketMTU(); |
|
1147 aOption = TPtrC8(reinterpret_cast<TUint8*>(&val), sizeof(TInt)); |
|
1148 break; |
|
1149 } |
|
1150 case ELMInboundACLSize: |
|
1151 { |
|
1152 if (aOption.Length() != sizeof(TInt)) |
|
1153 { |
|
1154 ret = KErrArgument; |
|
1155 } |
|
1156 TInt val = KLinkMgrIncomingBufferSize; // for now... |
|
1157 aOption = TPtrC8(reinterpret_cast<TUint8*>(&val), sizeof(TInt)); |
|
1158 break; |
|
1159 } |
|
1160 case KLMGetACLHandle: |
|
1161 { |
|
1162 if (aOption.Length() != sizeof(THCIConnHandle)) |
|
1163 { |
|
1164 ret = KErrArgument; |
|
1165 } |
|
1166 aOption = TPtrC8(reinterpret_cast<const TUint8*>(&iHandle), sizeof(THCIConnHandle)); |
|
1167 break; |
|
1168 } |
|
1169 default: |
|
1170 __DEBUGGER(); |
|
1171 ret = KErrNotSupported; |
|
1172 } |
|
1173 return ret; |
|
1174 } |
|
1175 |
|
1176 |
|
1177 TUint CACLLink::DoWrite(CACLDataItem& aItem, CACLDataQController& aQctrl, |
|
1178 const TDesC8& aData, TUint8 aOptions) |
|
1179 /** |
|
1180 aFrame has been obtained by someone else (the state) |
|
1181 - we can go and complete the write |
|
1182 **/ |
|
1183 { |
|
1184 LOG_FUNC |
|
1185 LOG1(_L("CACLLink::DoWrite aItem = 0x%08x"), &aItem); |
|
1186 |
|
1187 __ASSERT_ALWAYS(aItem.Frame() != NULL, Panic(EBTACLSAPWriteDataItemWithNullFrame)); |
|
1188 |
|
1189 // Fill the item with data... |
|
1190 iLinksMan.HCIFacade().FormatACLData(*aItem.Frame(), Handle(), aOptions, aData); |
|
1191 //.. and add it to the pool |
|
1192 aQctrl.AddItem(aItem); |
|
1193 TInt ret = 1; //one data 'item' |
|
1194 |
|
1195 LOG1(_L("CACLLink::DoWrite ret = %d"), ret); |
|
1196 return ret; |
|
1197 } |
|
1198 |
|
1199 void CACLLink::Ioctl(TUint /*aLevel*/,TUint /*aName*/,TDes8* /*aOption*/) |
|
1200 { |
|
1201 LOG_FUNC |
|
1202 // good stuff here! |
|
1203 } |
|
1204 |
|
1205 void CACLLink::CancelIoctl(TUint /*aLevel*/,TUint /*aName*/) |
|
1206 { |
|
1207 LOG_FUNC |
|
1208 // good stuff here! |
|
1209 } |
|
1210 |
|
1211 TInt CACLLink::SAPSetOption(TUint aLevel,TUint aName,const TDesC8& aOption) |
|
1212 { |
|
1213 LOG_FUNC |
|
1214 TInt rerr = KErrNone; |
|
1215 |
|
1216 switch(aLevel) |
|
1217 { |
|
1218 case KSolBtLM: |
|
1219 rerr = KErrNotSupported; |
|
1220 break; |
|
1221 |
|
1222 case KSolBtACL: |
|
1223 rerr = DoACLSetOption(aName, aOption); |
|
1224 break; |
|
1225 |
|
1226 default: |
|
1227 rerr = KErrNotSupported; |
|
1228 break; |
|
1229 }; |
|
1230 |
|
1231 return rerr; |
|
1232 } |
|
1233 |
|
1234 TInt CACLLink::DoACLSetOption(TUint aName, const TDesC8& /*aOption*/) |
|
1235 { |
|
1236 LOG_FUNC |
|
1237 TInt rerr = KErrNone; |
|
1238 |
|
1239 switch(aName) |
|
1240 { |
|
1241 case KSolBtACLFlushOccured: |
|
1242 rerr = ProcessFlush(); |
|
1243 break; |
|
1244 |
|
1245 default: |
|
1246 rerr = KErrNotSupported; |
|
1247 break; |
|
1248 }; |
|
1249 |
|
1250 return rerr; |
|
1251 } |
|
1252 |
|
1253 void CACLLink::RemName(TSockAddr& aAddr) const |
|
1254 { |
|
1255 LOG_FUNC |
|
1256 //Return the remote name |
|
1257 // Copy iRemoteDev and iRemotePort into TSockAddr and return |
|
1258 TACLSockAddr bbAddr(aAddr); |
|
1259 bbAddr.SetBTAddr(iRemoteDev); |
|
1260 aAddr=bbAddr; // Convert back |
|
1261 } |
|
1262 |
|
1263 void CACLLink::LocalName(TSockAddr& aAddr) const |
|
1264 { |
|
1265 LOG_FUNC |
|
1266 // Copy iLocalPort into TSockAddr and return |
|
1267 TACLSockAddr bbAddr(aAddr); |
|
1268 bbAddr.SetBTAddr(iProtocol.LocalBTAddress()); |
|
1269 aAddr=bbAddr; |
|
1270 } |
|
1271 |
|
1272 void CACLLink::Start() |
|
1273 { |
|
1274 LOG_FUNC |
|
1275 iState->Start(*this); |
|
1276 } |
|
1277 |
|
1278 void CACLLink::Timeout(TBasebandTimeout aTimeout) |
|
1279 { |
|
1280 LOG_FUNC |
|
1281 iState->Timeout(*this, aTimeout); |
|
1282 } |
|
1283 |
|
1284 void CACLLink::AutoBind() |
|
1285 { |
|
1286 LOG_FUNC |
|
1287 // at present no state bothers with this, so just process here |
|
1288 // do nothing |
|
1289 } |
|
1290 |
|
1291 void CACLLink::Shutdown(TCloseType aOption) |
|
1292 { |
|
1293 LOG_FUNC |
|
1294 iState->Shutdown(*this, aOption); |
|
1295 } |
|
1296 |
|
1297 void CACLLink::Shutdown(TCloseType aOption, const TDesC8& /*aDisconnectionData*/) |
|
1298 { |
|
1299 LOG_FUNC |
|
1300 iState->Shutdown(*this, aOption); |
|
1301 } |
|
1302 |
|
1303 |
|
1304 void CACLLink::NotifyDataToSocket(TUint8 aFlag, const TDesC8& aData) |
|
1305 { |
|
1306 LOG_FUNC |
|
1307 const TUint8 KFlagHeaderSize =1; |
|
1308 /* |
|
1309 The design of the protocol specification for L2CAP |
|
1310 means that both we and L2CAP need to know the flag parameter |
|
1311 for now we just signal one datagram (*could* signal two - one for flag: but that's just as grubby) |
|
1312 */ |
|
1313 |
|
1314 |
|
1315 // make a new chain consisting of Flag(1st octet) followed by Data. |
|
1316 RMBufChain aclData; |
|
1317 #ifdef HOSTCONTROLLER_TO_HOST_FLOW_CONTROL |
|
1318 THCIConnHandle connH=iHandle; |
|
1319 aclData = const_cast<CHCIFacade&>(iLinksMan.HCIFacade()).TakeInboundACLDataBufferFromPool(connH); |
|
1320 aclData.CopyIn(aData,KFlagHeaderSize); |
|
1321 aclData.TrimEnd(aData.Length()+KFlagHeaderSize); //return the reserved MBufs we didn't need |
|
1322 //to the global pool |
|
1323 #else |
|
1324 TRAPD(err, aclData.CreateL(aData, KFlagHeaderSize)); |
|
1325 |
|
1326 if (err) |
|
1327 { |
|
1328 //Since HC->H flow control is off, and we have run out of MBufs |
|
1329 //there is nothing we can do here but drop or disconnect the link |
|
1330 //due to limited resources. We drop. |
|
1331 return; |
|
1332 } |
|
1333 #endif |
|
1334 |
|
1335 aclData.First()->Ptr()[0] = aFlag; // aData is already in the chain |
|
1336 |
|
1337 |
|
1338 // slap onto the RMBufPacketQ |
|
1339 iInboundBuffer.Append(aclData); // transfers |
|
1340 |
|
1341 |
|
1342 #ifndef HOSTCONTROLLER_TO_HOST_FLOW_CONTROL |
|
1343 if (!err) |
|
1344 { |
|
1345 #endif |
|
1346 iSocket->NewData(1); // datagrams: could async notify - or get l2cap to drain async |
|
1347 #ifndef HOSTCONTROLLER_TO_HOST_FLOW_CONTROL |
|
1348 } |
|
1349 #endif |
|
1350 } |
|
1351 |
|
1352 |
|
1353 void CACLLink::GetData(TDes8& aDesc,TUint aOptions,TSockAddr* aAddr) |
|
1354 { |
|
1355 LOG_FUNC |
|
1356 // see note in call to NewData - we just give a single descriptor |
|
1357 // could get L2CAP to call down with options/addr: it could say whether |
|
1358 // it's expecting flags or not etc |
|
1359 |
|
1360 // this overload is for descriptors - will be deprecated |
|
1361 // for now use a dummy mbufchain |
|
1362 RMBufChain dummy; |
|
1363 |
|
1364 GetData(dummy, aDesc.Length(), aOptions, aAddr); |
|
1365 |
|
1366 aDesc.SetMax(); |
|
1367 dummy.CopyOut(aDesc); |
|
1368 dummy.Free(); // release the actual mBuf - it's also gone from the inbound buffer collection |
|
1369 } |
|
1370 |
|
1371 TInt CACLLink::GetData(RMBufChain& aData, TUint /*aLength*/, TUint /*aOptions*/, TSockAddr* /*aAddr*/) |
|
1372 { |
|
1373 LOG_FUNC |
|
1374 static_cast<void>(iInboundBuffer.Remove(aData)); // take off Q |
|
1375 |
|
1376 return 1; // datagram |
|
1377 } |
|
1378 |
|
1379 TUint CACLLink::Write(const TDesC8& aDesc,TUint aOptions, TSockAddr* aAddr) |
|
1380 { |
|
1381 LOG_FUNC |
|
1382 return iState->Write(*this, aDesc, aOptions, aAddr); |
|
1383 } |
|
1384 |
|
1385 void CACLLink::CloseLogicalLink() |
|
1386 { |
|
1387 LOG_FUNC |
|
1388 // tell our Q controller about ACL death |
|
1389 iProtocol.ACLController().ACLLogicalLinkDown(iHandle); |
|
1390 iHandle = KInvalidConnectionHandle; |
|
1391 } |
|
1392 |
|
1393 void CACLLink::ClearPhysicalLink() |
|
1394 { |
|
1395 LOG_FUNC |
|
1396 CBTBasebandSAP::UnbindLink(EACLLink); |
|
1397 } |
|
1398 |
|
1399 TInt CACLLink::OpenLogicalLink() |
|
1400 { |
|
1401 LOG_FUNC |
|
1402 // spec says our ACL handle = that of PHY |
|
1403 iHandle = iPhysicalLink->Handle(); |
|
1404 TInt err = iProtocol.ACLController().ACLLogicalLinkUp(iHandle, iPhysicalLink->IsParked()); |
|
1405 |
|
1406 return err; |
|
1407 } |
|
1408 |
|
1409 void CACLLink::Error(TInt aErr) |
|
1410 { |
|
1411 LOG_FUNC |
|
1412 iState->Error(*this, aErr); |
|
1413 } |
|
1414 |
|
1415 void CACLLink::Disconnection() |
|
1416 { |
|
1417 LOG_FUNC |
|
1418 iState->Disconnection(*this); |
|
1419 } |
|
1420 |
|
1421 void CACLLink::ConnectComplete(const TBTConnect& aConnect) |
|
1422 { |
|
1423 LOG_FUNC |
|
1424 iState->ConnectComplete(*this, aConnect); |
|
1425 } |
|
1426 |
|
1427 TBool CACLLink::ConnectRequest(const TBTConnect& aConnect, const CPhysicalLink& aPhysicalLink) |
|
1428 { |
|
1429 LOG_FUNC |
|
1430 return iState->ConnectRequest(*this, aConnect, aPhysicalLink); |
|
1431 } |
|
1432 |
|
1433 void CACLLink::DataReceived(THCIConnHandle __DEBUG_ONLY(aConnH), TUint8 aFlag, const TDesC8& aData) |
|
1434 { |
|
1435 LOG_FUNC |
|
1436 // even if this is broadcast, the data *FROM* the HC to the Host should have |
|
1437 // the real connection handle of the physical link to the master (who sent the data!) |
|
1438 __ASSERT_DEBUG(aConnH == Handle(), Panic(EBTACLSAPDataForWrongSAP)); |
|
1439 |
|
1440 if (!CanHandleFlags(aFlag)) |
|
1441 { |
|
1442 // we can't handle these flags - other ACL SAPs might though! |
|
1443 return; |
|
1444 } |
|
1445 |
|
1446 iState->DataReceived(*this, aFlag, aData); |
|
1447 } |
|
1448 |
|
1449 void CACLLink::PacketsSent(THCIConnHandle /*aHandle*/, TUint16 /*aNumPackets*/) |
|
1450 { |
|
1451 LOG_FUNC |
|
1452 TryToSend(); |
|
1453 } |
|
1454 |
|
1455 TBool CACLLink::CanHandleFlags(TUint8 aFlag) const |
|
1456 { |
|
1457 LOG_FUNC |
|
1458 // map packet flags to port |
|
1459 TUint8 pbFlags = static_cast<TUint8>((aFlag >> KPacketPBBCFlagShift) & KPacketPBFlagMask); |
|
1460 if ((pbFlags == KFirstHLFragment || pbFlags == KContinuingHLFragment) && iLocalPort == EACLPortL2CAP) |
|
1461 return ETrue; |
|
1462 if (pbFlags == 0 && iLocalPort == EACLPortRaw) |
|
1463 return ETrue; |
|
1464 return EFalse; |
|
1465 } |
|
1466 |
|
1467 TInt CACLLink::ProcessFlush() |
|
1468 { |
|
1469 LOG_FUNC |
|
1470 CACLDataQController& aclQCtrl = iProtocol.ACLController(); |
|
1471 return aclQCtrl.SetFlushInProgress(Handle()); |
|
1472 } |
|
1473 |
|
1474 TBool CACLLink::IsIdle() const |
|
1475 { |
|
1476 LOG_FUNC |
|
1477 return iState->IsIdle(); |
|
1478 } |
|
1479 |
|
1480 void CACLLink::PhysicalLinkChange(const TBTBasebandEventNotification& aEvent, CPhysicalLink& __DEBUG_ONLY(aPhysicalLink)) |
|
1481 { |
|
1482 LOG_FUNC |
|
1483 // ACL logical links only really interested in parking of PHY |
|
1484 __ASSERT_DEBUG(&aPhysicalLink == iPhysicalLink, Panic(EBTACLSAPWrongPhysicalLink)); |
|
1485 |
|
1486 // test for a park event |
|
1487 if (aEvent.EventType() & ENotifyParkMode) |
|
1488 { |
|
1489 // gone into park, but check phy role: could do broadcast |
|
1490 iState->Park(*this); |
|
1491 } |
|
1492 |
|
1493 else if (aEvent.EventType() & ENotifyActiveMode) |
|
1494 { |
|
1495 //un-parked |
|
1496 iState->Unpark(*this); |
|
1497 } |
|
1498 |
|
1499 else |
|
1500 { |
|
1501 // uninteresting event |
|
1502 } |
|
1503 } |
|
1504 |
|
1505 void CACLLink::TryToSend() |
|
1506 { |
|
1507 LOG_FUNC |
|
1508 // no need to tell the buffer management entity (acl pool) - already done |
|
1509 // if socket blocked - unblock |
|
1510 if (iSocketBlocked) |
|
1511 { |
|
1512 iSocketBlocked = EFalse; |
|
1513 Socket()->CanSend(); |
|
1514 } |
|
1515 } |
|
1516 |
|
1517 void CACLLink::ParkLogicalLink() |
|
1518 { |
|
1519 LOG_FUNC |
|
1520 iProtocol.ACLController().SetParked(Handle(), ETrue); |
|
1521 } |
|
1522 |
|
1523 void CACLLink::UnparkLogicalLink() |
|
1524 { |
|
1525 LOG_FUNC |
|
1526 iProtocol.ACLController().SetParked(Handle(), EFalse); |
|
1527 } |
|
1528 |
|
1529 void CACLLink::SetInitiationState(TInitiationState aState) |
|
1530 { |
|
1531 __ASSERT_DEBUG(aState != EInvalidInitiationState, Panic(EBTACLSAPIndeterminateInitiator)); |
|
1532 iInitiationState = aState; |
|
1533 } |
|
1534 |
|
1535 void CACLLink::ClearInitiationState() |
|
1536 { |
|
1537 iInitiationState = EInvalidInitiationState; |
|
1538 } |
|
1539 |
|
1540 TBool CACLLink::IsLocallyInitiated() const |
|
1541 { |
|
1542 __ASSERT_DEBUG(iInitiationState != EInvalidInitiationState, Panic(EBTACLSAPIndeterminateInitiator)); |
|
1543 return iInitiationState == ELocallyInitiated; |
|
1544 } |
|
1545 |
|
1546 void CACLLink::AccessRequestComplete(TInt aResult) |
|
1547 { |
|
1548 // We don't expect the deferred result, if we get this then the state machine |
|
1549 // for the logical link needs to be updated. |
|
1550 __ASSERT_DEBUG(aResult != EBTSecManAccessDeferred, Panic(EBTACLSAPUnexpectedSecurityResult)); |
|
1551 if(aResult == EBTSecManAccessDenied) // convert to a symbian error |
|
1552 { |
|
1553 aResult = KErrAccessDenied; |
|
1554 } |
|
1555 if(aResult != KErrNone) |
|
1556 { |
|
1557 // Kill the physical link, this should result in the ACL link being |
|
1558 // pulled down. |
|
1559 if(iPhysicalLink) |
|
1560 { |
|
1561 iPhysicalLink->Terminate(ERemoteUserEndedConnection); |
|
1562 } |
|
1563 } |
|
1564 // else success from the access requester so we're done. |
|
1565 } |
|
1566 |