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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 |
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17 |
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18 /** |
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19 @file |
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20 @internalComponent |
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21 */ |
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22 |
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23 #ifndef L2CAPFECNEGOTIATOR_INL |
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24 #define L2CAPFECNEGOTIATOR_INL |
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25 |
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26 // Not needed, but keeps Carbide's semantic analyzer a bit happier. |
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27 #include "L2CapFecNegotiator.h" |
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28 |
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29 // |
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30 // TFecOptionHandlerDelegator inlines |
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31 // |
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32 inline TBool TFecOptionHandlerDelegator::IsOptionValid(const TRetransmissionAndFlowControlOption& aFecOption) const |
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33 { |
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34 const TModeSpecificFecOptionHandlerBase* handler = ModeToHandler(aFecOption.LinkMode()); |
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35 // handler == NULL means invalid mode field |
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36 return handler && handler->IsOptionValid(aFecOption); |
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37 } |
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38 |
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39 inline TBool TFecOptionHandlerDelegator::IsPeerResponseAcceptable(const TRetransmissionAndFlowControlOption& aPreferred, |
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40 const TRetransmissionAndFlowControlOption& aPeer) const |
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41 { |
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42 #ifdef __FLOG_ACTIVE |
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43 LogCurrentValues(aPreferred, aPeer); |
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44 #endif |
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45 __ASSERT_DEBUG(aPeer.LinkMode() == aPreferred.LinkMode(), Panic(EL2CAPPeerAndPreferredChannelModesNotEqual)); |
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46 |
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47 // Logically it's Preferred checking whether Peer is acceptable, so dispatch on preferred. |
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48 // (If we're here then both modes are equal though, so it doesn't really matter, but just |
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49 // sayin' in case it changes). |
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50 return Handler(aPreferred).IsPeerResponseAcceptable(aPreferred, aPeer); |
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51 } |
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52 |
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53 inline TBool TFecOptionHandlerDelegator::BuildPositiveResponse(TRetransmissionAndFlowControlOption& aPreferred, |
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54 const TRetransmissionAndFlowControlOption& aPeer) const |
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55 { |
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56 #ifdef __FLOG_ACTIVE |
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57 LogCurrentValues(aPreferred, aPeer); |
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58 #endif |
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59 |
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60 // Response will have peer - proposed mode so dispatch on peer. |
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61 return Handler(aPeer).BuildPositiveResponse(aPreferred, aPeer); |
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62 } |
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63 |
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64 inline void TFecOptionHandlerDelegator::BuildNegativeResponse(TRetransmissionAndFlowControlOption& aPreferred, |
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65 const TRetransmissionAndFlowControlOption& aPeer) const |
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66 { |
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67 #ifdef __FLOG_ACTIVE |
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68 LogCurrentValues(aPreferred, aPeer); |
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69 #endif |
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70 |
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71 // Response will have our preferred mode so dispatch on preferred. |
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72 Handler(aPreferred).BuildNegativeResponse(aPreferred, aPeer); |
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73 } |
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74 |
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75 inline void TFecOptionHandlerDelegator::PrepareImplicitPeerResponse(TRetransmissionAndFlowControlOption& aImplicitResponse, |
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76 const TRetransmissionAndFlowControlOption& aPreferred) const |
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77 { |
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78 // Response will have our preferred mode so dispatch on preferred. |
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79 Handler(aPreferred).PrepareImplicitPeerResponse(aImplicitResponse, aPreferred); |
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80 } |
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81 |
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82 inline void TFecOptionHandlerDelegator::SetMaxTransmit(TRetransmissionAndFlowControlOption& aFecOption, TUint8 aMaxTransmit) const |
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83 { |
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84 Handler(aFecOption).SetMaxTransmit(aFecOption, aMaxTransmit); |
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85 } |
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86 |
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87 inline void TFecOptionHandlerDelegator::ZeroUnspecifiedRequestFields(TRetransmissionAndFlowControlOption& aFecOption) const |
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88 { |
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89 Handler(aFecOption).ZeroUnspecifiedRequestFields(aFecOption); |
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90 } |
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91 |
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92 inline void TFecOptionHandlerDelegator::ZeroUnspecifiedResponseFields(TRetransmissionAndFlowControlOption& aFecOption) const |
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93 { |
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94 Handler(aFecOption).ZeroUnspecifiedResponseFields(aFecOption); |
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95 } |
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96 |
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97 |
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98 // |
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99 // TL2CapSingleDirectionFecNegotiatorBase inlines |
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100 // |
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101 inline TL2CapSingleDirectionFecNegotiatorBase::TL2CapSingleDirectionFecNegotiatorBase(const TL2CapFecNegotiator& aFecNegotiator) |
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102 : iFecNegotiator(aFecNegotiator), |
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103 iConfigStatus(EOptionConfigOutstanding) |
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104 {} |
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105 |
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106 inline TL2CapConfigurationOptionGroupBase::TOptionConfigStatus TL2CapSingleDirectionFecNegotiatorBase::ConfigOptionStatus() const |
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107 { |
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108 return iConfigStatus; |
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109 } |
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110 |
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111 inline void TL2CapSingleDirectionFecNegotiatorBase::SetPeer(const TRetransmissionAndFlowControlOption& aFec) |
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112 { |
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113 iPeer = aFec; |
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114 } |
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115 |
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116 inline void TL2CapSingleDirectionFecNegotiatorBase::SetPreferred(const TRetransmissionAndFlowControlOption& aFec) |
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117 { |
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118 iPreferred = aFec; |
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119 } |
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120 |
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121 inline const TRetransmissionAndFlowControlOption& TL2CapSingleDirectionFecNegotiatorBase::Peer() const |
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122 { |
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123 return iPeer; |
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124 } |
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125 |
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126 inline const TRetransmissionAndFlowControlOption& TL2CapSingleDirectionFecNegotiatorBase::Preferred() const |
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127 { |
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128 return iPreferred; |
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129 } |
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130 |
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131 |
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132 inline TL2CapIncomingFecNegotiator::TL2CapIncomingFecNegotiator(const TL2CapFecNegotiator& aFecNegotiator) |
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133 : TL2CapSingleDirectionFecNegotiatorBase(aFecNegotiator) |
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134 {} |
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135 |
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136 inline TL2CapOutgoingFecNegotiator::TL2CapOutgoingFecNegotiator(const TL2CapFecNegotiator& aFecNegotiator) |
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137 : TL2CapSingleDirectionFecNegotiatorBase(aFecNegotiator), |
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138 iIncludeValueInPositiveConfigResponse(EFalse) |
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139 {} |
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140 |
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141 inline TBool TL2CapOutgoingFecNegotiator::NeedToIncludeInPositiveConfigResponse() |
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142 { |
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143 return iIncludeValueInPositiveConfigResponse; |
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144 } |
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145 |
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146 inline void TL2CapOutgoingFecNegotiator::SetIncludeInPositiveConfigResponse(TBool aVal) |
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147 { |
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148 iIncludeValueInPositiveConfigResponse = aVal; |
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149 } |
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150 |
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151 |
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152 // |
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153 // TL2CapFecNegotiator inlines |
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154 // |
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155 |
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156 inline TL2CapFecNegotiator::TL2CapFecNegotiator() |
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157 : iIncomingNegotiator(*this), |
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158 iOutgoingNegotiator(*this), |
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159 iNegotiationBehavior(EState1), |
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160 iDesiredMode(EL2CAPBasicMode) |
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161 {} |
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162 |
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163 inline TInt TL2CapFecNegotiator::PeerRequestsOption(const TRetransmissionAndFlowControlOption& aFecOption) |
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164 { |
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165 if (iModeSpecificHandlers.IsOptionValid(aFecOption)) |
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166 { |
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167 return iOutgoingNegotiator.ProcessPeerValue(aFecOption); |
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168 } |
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169 else |
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170 { |
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171 return KErrBadPacketReceived; |
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172 } |
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173 } |
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174 |
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175 inline TInt TL2CapFecNegotiator::PeerRequestsLastAcceptedValue() |
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176 { |
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177 TInt err = iOutgoingNegotiator.ProcessPeerValue(iOutgoingNegotiator.Peer()); |
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178 iOutgoingNegotiator.SetIncludeInPositiveConfigResponse(EFalse); |
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179 return err; |
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180 } |
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181 |
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182 inline TInt TL2CapFecNegotiator::PeerRejectsOption(const TRetransmissionAndFlowControlOption& aFecOption) |
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183 { |
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184 TInt err = KErrNone; |
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185 |
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186 // Peer has sent us an Unacceptable Parameters response with a Retransmission And Flow Control |
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187 // option in it. The only useful information there is the Channel Mode field - this is the one |
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188 // actually being rejected, all the rest of them are non-negotiable (informational). |
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189 // Some implementations send their default values for those informational parameters, others |
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190 // just set them to 0 (that's what we do). Whatever their values are, we don't use them - we |
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191 // use our own based on the mode suggested by the remote. |
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192 // This is why we don't (and can't - they may be 0) check all the parameters with IsOptionValid |
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193 // - channel mode is all we're interested in. |
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194 |
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195 if (TRetransmissionAndFlowControlOption::IsModeValid(aFecOption.LinkMode())) |
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196 { |
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197 iIncomingNegotiator.ProcessPeerValue(aFecOption, ETrue); |
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198 } |
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199 else |
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200 { |
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201 err = KErrBadPacketReceived; |
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202 } |
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203 return err; |
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204 } |
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205 |
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206 inline TInt TL2CapFecNegotiator::PeerAcceptsOption(const TRetransmissionAndFlowControlOption& aFecOption) |
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207 { |
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208 TInt err = KErrNone; |
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209 if (iModeSpecificHandlers.IsOptionValid(aFecOption)) |
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210 { |
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211 iIncomingNegotiator.ProcessPeerValue(aFecOption, EFalse); |
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212 } |
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213 else |
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214 { |
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215 err = KErrBadPacketReceived; |
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216 } |
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217 return err; |
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218 } |
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219 |
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220 inline void TL2CapFecNegotiator::PeerAcceptsOption() |
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221 { |
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222 iIncomingNegotiator.ProcessImplicitPeerValue(); |
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223 } |
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224 |
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225 inline TBool TL2CapFecNegotiator::NeedToIncludeInPositiveConfigResponse() |
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226 { |
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227 return iOutgoingNegotiator.NeedToIncludeInPositiveConfigResponse(); |
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228 } |
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229 |
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230 inline const TL2CapEntityInfo& TL2CapFecNegotiator::PeerSupportedModes() const |
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231 { |
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232 return iPeerSupportedModes; |
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233 } |
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234 |
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235 inline TL2CapFecNegotiator::TNegotiationBehavior TL2CapFecNegotiator::NegotiationBehavior() const |
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236 { |
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237 return iNegotiationBehavior; |
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238 } |
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239 |
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240 inline TL2CapChannelMode TL2CapFecNegotiator::DesiredMode() const |
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241 { |
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242 return iDesiredMode; |
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243 } |
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244 |
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245 inline TUint8 TL2CapFecNegotiator::MaxTransmit() const |
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246 { |
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247 return iMaxTransmit; |
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248 } |
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249 |
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250 inline const TFecOptionHandlerDelegator& TL2CapFecNegotiator::ModeSpecificHandlers() const |
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251 { |
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252 return iModeSpecificHandlers; |
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253 } |
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254 |
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255 inline const TRetransmissionAndFlowControlOption& TL2CapFecNegotiator::IncomingPreferred() const |
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256 { |
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257 return iIncomingNegotiator.Preferred(); |
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258 } |
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259 |
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260 inline const TRetransmissionAndFlowControlOption& TL2CapFecNegotiator::OutgoingPreferred() const |
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261 { |
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262 return iOutgoingNegotiator.Preferred(); |
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263 } |
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264 |
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265 inline TL2CapConfigurationOptionGroupBase::TOptionConfigStatus TL2CapFecNegotiator::IncomingConfigOptionStatus() const |
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266 { |
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267 return iIncomingNegotiator.ConfigOptionStatus(); |
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268 } |
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269 |
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270 inline TL2CapConfigurationOptionGroupBase::TOptionConfigStatus TL2CapFecNegotiator::OutgoingConfigOptionStatus() const |
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271 { |
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272 return iOutgoingNegotiator.ConfigOptionStatus(); |
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273 } |
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274 |
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275 inline TL2CapDataControllerConfig TL2CapFecNegotiator::DataControllerConfig() const |
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276 { |
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277 return TL2CapDataControllerConfig(OutgoingLinkMode(), |
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278 OutgoingTxWindowSize(), |
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279 OutgoingMaxTransmit(), |
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280 OutgoingRetransmissionTimeout(), |
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281 IncomingMonitorTimeout(), |
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282 IncomingTxWindowSize(), |
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283 IncomingRetransmissionTimeout(), |
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284 IncomingMaximumPDUSize()); |
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285 } |
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286 |
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287 |
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288 // The general rule for methods below is that for the Outgoing direction we get the parameters |
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289 // from the Preferred fields since in case of wildcard params (TxWin, MPS), these fields contain |
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290 // the correct minimized values. For the same reason the Incoming direction parameters are fetched |
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291 // from the Peer values. |
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292 // Note that it's not always that simple in case of non-negotiated parameters like MaxTransmit, |
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293 // Retransmission & Monitor TO, which is the reason these methods exist. |
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294 |
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295 inline TL2CapChannelMode TL2CapFecNegotiator::OutgoingLinkMode() const |
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296 { |
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297 return iOutgoingNegotiator.Preferred().LinkMode(); |
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298 } |
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299 |
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300 inline TL2CapChannelMode TL2CapFecNegotiator::IncomingLinkMode() const |
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301 { |
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302 return iIncomingNegotiator.Peer().LinkMode(); |
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303 } |
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304 |
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305 inline TUint8 TL2CapFecNegotiator::OutgoingLinkModeAsUnsignedByte() const |
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306 { |
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307 return iOutgoingNegotiator.Preferred().LinkModeAsUnsignedByte(); |
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308 } |
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309 |
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310 inline TUint8 TL2CapFecNegotiator::IncomingLinkModeAsUnsignedByte() const |
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311 { |
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312 return iIncomingNegotiator.Peer().LinkModeAsUnsignedByte(); |
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313 } |
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314 |
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315 inline TUint8 TL2CapFecNegotiator::OutgoingTxWindowSize() const |
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316 { |
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317 return iOutgoingNegotiator.Preferred().TxWindowSize(); |
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318 } |
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319 |
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320 inline TUint8 TL2CapFecNegotiator::IncomingTxWindowSize() const |
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321 { |
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322 return iIncomingNegotiator.Peer().TxWindowSize(); |
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323 } |
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324 |
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325 inline TUint8 TL2CapFecNegotiator::OutgoingMaxTransmit() const |
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326 { |
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327 // Peer sends us the value to use in its Config Request. |
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328 return iOutgoingNegotiator.Peer().MaxTransmit(); |
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329 } |
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330 |
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331 inline TUint8 TL2CapFecNegotiator::IncomingMaxTransmit() const |
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332 { |
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333 // We send the peer the value to use in our Config Request. |
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334 return iIncomingNegotiator.Preferred().MaxTransmit(); |
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335 } |
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336 |
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337 inline TUint16 TL2CapFecNegotiator::OutgoingRetransmissionTimeout() const |
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338 { |
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339 return iOutgoingNegotiator.Preferred().RetransmissionTimeout(); |
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340 } |
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341 |
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342 inline TUint16 TL2CapFecNegotiator::IncomingRetransmissionTimeout() const |
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343 { |
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344 return iIncomingNegotiator.Peer().RetransmissionTimeout(); |
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345 } |
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346 |
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347 // Outgoing traffic -> Incoming S-Frames -> Monitor TO that our peer will use. |
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348 inline TUint16 TL2CapFecNegotiator::OutgoingMonitorTimeout() const |
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349 { |
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350 if (iIncomingNegotiator.Preferred().LinkMode() == EL2CAPEnhancedRetransmissionMode || |
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351 iIncomingNegotiator.Preferred().LinkMode() == EL2CAPStreamingMode) |
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352 { |
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353 // Peer sends the time-outs it'll use in its Config Response. |
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354 return iIncomingNegotiator.Peer().MonitorTimeout(); |
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355 } |
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356 else |
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357 { |
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358 // Negotiated in the direction it relates to. |
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359 return iOutgoingNegotiator.Preferred().MonitorTimeout(); |
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360 } |
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361 } |
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362 |
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363 // Incoming traffic -> Outgoing S-Frames -> Monitor TO that we will use. |
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364 inline TUint16 TL2CapFecNegotiator::IncomingMonitorTimeout() const |
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365 { |
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366 if (iIncomingNegotiator.Preferred().LinkMode() == EL2CAPEnhancedRetransmissionMode || |
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367 iIncomingNegotiator.Preferred().LinkMode() == EL2CAPStreamingMode) |
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368 { |
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369 // We send the time-outs we'll use in our Config Response. |
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370 return iOutgoingNegotiator.Preferred().MonitorTimeout(); |
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371 } |
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372 else |
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373 { |
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374 // Negotiated in the direction it relates to. |
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375 return iIncomingNegotiator.Peer().MonitorTimeout(); |
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376 } |
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377 } |
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378 |
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379 inline TUint16 TL2CapFecNegotiator::OutgoingMaximumPDUSize() const |
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380 { |
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381 return iOutgoingNegotiator.Preferred().MaximumPDUSize(); |
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382 } |
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383 |
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384 inline TUint16 TL2CapFecNegotiator::IncomingMaximumPDUSize() const |
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385 { |
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386 return iIncomingNegotiator.Peer().MaximumPDUSize(); |
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387 } |
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388 |
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389 #endif /*L2CAPFECNEGOTIATOR_INL*/ |