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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // loop6.cpp - loopback interface for IPv6 |
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15 // |
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16 |
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17 #include "in_fmly.h" |
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18 #include "loop6.h" |
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19 #include <in6_if.h> // KSoIf* |
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20 #include "networkinfo.h" |
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21 |
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22 CIfLoop6::CIfLoop6() |
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23 { |
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24 __DECLARE_NAME(_S("CIfLoop6")); |
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25 } |
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26 |
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27 void CIfLoop6::ConstructL(const TDesC& aTag) |
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28 { |
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29 iIfaceName = aTag.AllocL(); |
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30 iIfaceMTU = 4096; |
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31 |
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32 TCallBack scb(SendCallBack, this); |
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33 iSendCallBack = new(ELeave) CAsyncCallBack(scb, KInet6DefaultPriority); |
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34 |
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35 TCallBack rcb(RecvCallBack, this); |
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36 iRecvCallBack = new(ELeave) CAsyncCallBack(rcb, KInet6DefaultPriority); |
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37 } |
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38 |
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39 CIfLoop6::~CIfLoop6() |
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40 { |
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41 iRecvQ.Free(); |
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42 iSendQ.Free(); |
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43 |
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44 delete iRecvCallBack; |
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45 delete iSendCallBack; |
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46 delete iIfaceName; |
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47 } |
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48 |
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49 CIfLoop6* CIfLoop6::NewL(const TDesC& aTag) |
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50 { |
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51 CIfLoop6* p = new(ELeave) CIfLoop6; |
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52 |
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53 CleanupStack::PushL(p); |
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54 p->ConstructL(aTag); |
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55 CleanupStack::Pop(); |
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56 |
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57 return p; |
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58 } |
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59 |
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60 void CIfLoop6::BindL(TAny* aId) |
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61 { |
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62 iNetwork = (CProtocolBase*)aId; |
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63 iNetwork->StartSending((CProtocolBase *)this); |
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64 } |
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65 |
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66 TInt CIfLoop6::State() |
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67 { |
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68 return EIfUp; |
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69 } |
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70 |
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71 TInt CIfLoop6::Control(TUint aLevel, TUint aName, TDes8& aOption, TAny*) |
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72 { |
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73 if (aLevel == KSOLInterface) |
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74 { |
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75 switch (aName) |
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76 { |
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77 case KSoIfInfo6: |
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78 { |
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79 __ASSERT_DEBUG(STATIC_CAST(TUint, aOption.MaxLength()) >= sizeof (TSoIfInfo6), User::Panic(_L("LOOP6"), 0)); |
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80 |
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81 if (STATIC_CAST(TUint, aOption.MaxLength()) < sizeof (TSoIfInfo6)) |
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82 return KErrArgument; |
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83 |
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84 TSoIfInfo6& opt = *(TSoIfInfo6*)aOption.Ptr(); |
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85 opt.iRMtu = iIfaceMTU; |
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86 } |
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87 // FALL THROUGH AS TSoIfInfo6 IS AN EXTENSION OF TSoIfInfo |
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88 |
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89 case KSoIfInfo: |
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90 { |
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91 __ASSERT_DEBUG(STATIC_CAST(TUint, aOption.MaxLength()) >= sizeof (TSoIfInfo), User::Panic(_L("LOOP6"), 0)); |
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92 |
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93 if (STATIC_CAST(TUint, aOption.MaxLength()) < sizeof (TSoIfInfo)) |
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94 return KErrArgument; |
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95 |
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96 TSoIfInfo& opt = *(TSoIfInfo*)aOption.Ptr(); |
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97 |
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98 opt.iFeatures = KIfIsLoopback | KIfCanMulticast; |
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99 opt.iMtu = iIfaceMTU; |
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100 opt.iSpeedMetric = 30000; |
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101 opt.iName = *iIfaceName; |
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102 |
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103 return KErrNone; |
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104 } |
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105 |
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106 |
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107 case KSoIfConfig: |
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108 // PS: If KSoIfConfig returns KErrNotSupported, Update6 does not proceed |
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109 // with setting routes, etc. |
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110 { |
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111 TSoInet6IfConfig& cfg = *(TSoInet6IfConfig*)aOption.Ptr(); |
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112 if (!iIfaceName->Compare(_L("loop6")) && cfg.iFamily == KAfInet6) |
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113 { |
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114 |
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115 TSockAddr unspec(KAFUnspec); |
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116 cfg.iLocalId = unspec; |
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117 cfg.iRemoteId = unspec; |
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118 return KErrNone; |
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119 } |
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120 } |
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121 break; |
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122 case KSoIfGetConnectionInfo: |
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123 { |
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124 if (STATIC_CAST(TUint, aOption.MaxLength()) < sizeof(TSoIfConnectionInfo)) |
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125 return KErrArgument; |
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126 TSoIfConnectionInfo &opt = *(TSoIfConnectionInfo *)aOption.Ptr(); |
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127 opt.iIAPId = 0; |
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128 opt.iNetworkId = 0; |
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129 return KErrNone; |
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130 } |
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131 |
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132 default: |
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133 break; |
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134 } |
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135 } |
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136 return KErrNotSupported; |
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137 } |
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138 |
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139 void CIfLoop6::Info(TNifIfInfo& aInfo) const |
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140 { |
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141 aInfo.iVersion = TVersion(KInet6MajorVersionNumber, KInet6MinorVersionNumber, KInet6BuildVersionNumber); |
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142 aInfo.iFlags = KNifIfIsBase | KNifIfCreatedAlone; |
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143 aInfo.iName = *iIfaceName; |
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144 aInfo.iProtocolSupported = KProtocolInet6Ip; |
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145 } |
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146 |
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147 TInt CIfLoop6::Send(RMBufChain &aPacket, TAny*) |
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148 { |
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149 iSendQ.Append(aPacket); |
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150 iSendCallBack->CallBack(); |
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151 |
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152 return 1; |
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153 } |
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154 |
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155 TInt CIfLoop6::RecvCallBack(TAny* aCProtocol) |
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156 { |
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157 ((CIfLoop6*)aCProtocol)->DoProcess(); |
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158 |
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159 return 0; |
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160 } |
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161 |
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162 TInt CIfLoop6::SendCallBack(TAny* aCProtocol) |
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163 { |
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164 ((CIfLoop6*)aCProtocol)->DoSend(); |
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165 |
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166 return 0; |
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167 } |
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168 |
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169 void CIfLoop6::DoSend() |
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170 { |
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171 RMBufPacket send; |
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172 RMBufPacket recv; |
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173 |
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174 while (iSendQ.Remove(send)) |
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175 { |
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176 send.Unpack(); |
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177 Loop(send, recv); |
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178 iRecvQ.Append(recv); |
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179 iRecvCallBack->CallBack(); |
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180 send.Free(); |
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181 } |
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182 } |
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183 |
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184 void CIfLoop6::DoProcess() |
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185 { |
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186 RMBufPacket packet; |
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187 |
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188 while (iRecvQ.Remove(packet)) |
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189 { |
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190 iNetwork->Process(packet, (CProtocolBase*)this); |
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191 } |
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192 } |
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193 |
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194 void CIfLoop6::Loop(RMBufPacket& aSend, RMBufPacket& aRecv) |
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195 { |
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196 RMBufPktInfo* info = aSend.Info(); |
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197 |
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198 info->iProtocol = KProtocolInet6Loop; |
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199 |
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200 aSend.SetInfo(NULL); |
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201 aRecv.Assign(aSend); |
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202 aRecv.SetInfo(info); |
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203 aRecv.Pack(); |
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204 } |