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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 // |
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15 |
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16 #include <e32hal.h> // UserHal::MachineInfo() |
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17 #include <in_sock.h> // IPv6 enhanced in_sock.h: KProtocolInet6Ip |
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18 #include <in6_if.h> // KSoIface*, KIf* |
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19 #include "ncpip6.h" // This |
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20 #include "ncpip.h" // for KSlashChar |
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21 #include "PPPLOG.H" |
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22 #include "PppProg.h" |
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23 #include <commsdattypeinfov1_1.h> |
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24 #include <networking/pppconfig.h> |
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25 |
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26 using namespace ESock; |
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27 |
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28 #if defined(__VC32__) && (_MSC_VER < 1300) |
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29 #define PMF(x) x |
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30 #else |
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31 #define PMF(x) &x |
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32 #endif |
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33 |
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34 #ifdef __FLOG_ACTIVE |
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35 _LIT8(KNif,"Ppp"); |
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36 _LIT8(KPPPBinderIP6,"IP6"); |
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37 #endif |
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38 |
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39 #pragma warning (disable:4355) |
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40 CPppBinderIp6::CPppBinderIp6(CPppLcp* aLcp) |
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41 : MPppFsm(aLcp, EPppPhaseNetwork, KPppIdIp6cp), |
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42 iPppNifSubConnectionFlow(aLcp), |
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43 iIpRecvr(this, PMF(CPppBinderIp6::RecvIp), PMF(CPppBinderIp6::SendFlowOn), aLcp, EPppPhaseNetwork, |
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44 KPppIdIp6, PMF(CPppBinderIp6::Ip6FrameError), PMF(CPppBinderIp6::Ip6KillProtocol)) |
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45 { |
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46 #if EPOC_SDK <= 0x06000000 |
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47 __DECLARE_NAME(_S("CPppBinderIp6")); |
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48 #endif |
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49 __DECLARE_FSM_NAME(_S("IP6CP")); |
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50 __FLOG_OPEN(KNif, KPPPBinderIP6); |
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51 __FLOG_2(_L8("this:%08x\tCPppBinderIp4::CPppBinderIp6(CPppLcp& %08x)"), this, &iPppNifSubConnectionFlow); |
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52 |
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53 } |
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54 #pragma warning (default:4355) |
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55 |
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56 CPppBinderIp6* CPppBinderIp6::NewL(CPppLcp* aLcp) |
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57 { |
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58 CPppBinderIp6* pppBinderIp6 = new(ELeave) CPppBinderIp6(aLcp); |
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59 CleanupStack::PushL(pppBinderIp6); |
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60 pppBinderIp6->ConstructL(); |
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61 CleanupStack::Pop(pppBinderIp6); |
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62 return pppBinderIp6; |
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63 } |
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64 |
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65 CPppBinderIp6::~CPppBinderIp6() |
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66 { |
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67 Deregister(); |
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68 iIpRecvr.Deregister(); |
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69 |
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70 delete iSendCallBack; |
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71 iSendQ.Free(); |
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72 __FLOG_CLOSE; |
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73 } |
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74 |
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75 void CPppBinderIp6::ConstructL() |
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76 { |
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77 const CIPConfig* ncpConfig = Flow()->GetNcpConfig(); |
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78 if (NULL == ncpConfig) |
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79 { |
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80 User::Leave(KErrCorrupt); |
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81 } |
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82 |
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83 Register(); |
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84 iIpRecvr.Register(); |
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85 |
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86 TCallBack scb(SendCallBack, this); |
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87 iSendCallBack = new(ELeave) CAsyncCallBack(scb, KIp6cpSendPriority); |
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88 FsmConstructL(); |
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89 FsmOpen(); |
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90 |
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91 // Create a unique interface name |
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92 TBuf<KCommsDbSvrMaxColumnNameLength> port(ncpConfig->GetPortName());; |
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93 if (port.Length() != 0) |
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94 { |
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95 port.LowerCase(); |
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96 iIfName.Format(_L("ipcp6::%S"), &port); |
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97 } |
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98 else |
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99 { |
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100 iIfName.Format(_L("ipcp6[0x%08x]"), this); |
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101 } |
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102 } |
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103 |
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104 MLowerDataSender* CPppBinderIp6::BindL(MUpperDataReceiver& aUpperReceiver, MUpperControl& aControl) |
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105 { |
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106 __FLOG_1(_L8("CPppBinderIp6::Bind(MUpperDataReceiver %08x"), &aUpperReceiver); |
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107 if(iUpperControl) |
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108 User::Leave(KErrInUse); |
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109 iUpperControl = &aControl; |
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110 iUpperReceiver = &aUpperReceiver; |
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111 return this; |
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112 } |
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113 |
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114 void CPppBinderIp6::UnBind(MUpperDataReceiver& aUpperReceiver, MUpperControl& aUpperControl) |
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115 { |
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116 __FLOG(_L8("CDummyNifBinder6:\tUnbind()")); |
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117 (void)aUpperReceiver; |
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118 (void)aUpperControl; |
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119 ASSERT(&aUpperReceiver == iUpperReceiver); |
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120 ASSERT(&aUpperControl == iUpperControl); |
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121 iUpperReceiver = NULL; |
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122 iUpperControl = NULL; |
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123 } |
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124 |
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125 TBool CPppBinderIp6::MatchesUpperControl(const MUpperControl* aUpperControl) const |
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126 { |
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127 return iUpperControl == aUpperControl; |
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128 } |
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129 |
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130 TInt CPppBinderIp6::Control(TUint /*aLevel*/, TUint /*aName*/, TDes8& /*aOption*/) |
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131 { |
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132 return KErrNotSupported; |
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133 } |
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134 |
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135 void CPppBinderIp6::SendFlowOn() |
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136 { |
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137 iLowerFlowOn = ESendAccepted; |
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138 |
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139 if (!iSendQ.IsEmpty()) |
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140 { |
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141 iSendCallBack->CallBack(); |
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142 } |
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143 |
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144 if (iSendQ.IsEmpty() && iUpperControl) |
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145 { |
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146 iUpperFlowOn = ESendAccepted; |
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147 iUpperControl->StartSending(); |
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148 } |
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149 } |
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150 |
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151 void CPppBinderIp6::Error(TInt aError) |
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152 { |
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153 iUpperControl->Error(aError); |
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154 } |
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155 |
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156 |
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157 TInt CPppBinderIp6::SendCallBack(TAny* aCProtocol) |
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158 { |
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159 ((CPppBinderIp6*)aCProtocol)->DoSend(); |
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160 return 0; |
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161 } |
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162 |
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163 void CPppBinderIp6::FsmTerminationPhaseComplete() |
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164 { |
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165 } |
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166 |
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167 void CPppBinderIp6::DoSend() |
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168 { |
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169 if (FsmIsThisLayerOpen()) |
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170 { |
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171 RMBufPacket pkt; |
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172 |
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173 while (iSendQ.Remove(pkt)) |
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174 { |
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175 RMBufPktInfo*info = pkt.Unpack(); |
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176 TPppAddr addr; |
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177 |
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178 addr = info->iDstAddr; |
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179 TUint protocol = addr.GetProtocol(); |
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180 pkt.Pack(); |
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181 |
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182 if (Flow()->Send(pkt, protocol) <= 0) |
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183 { |
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184 LOG( Flow()->iLogger->Printf(_L("IPCP Flow Off")); ) |
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185 iLowerFlowOn = ESendBlocked; |
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186 break; |
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187 } |
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188 } |
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189 |
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190 if (iLowerFlowOn && !iUpperFlowOn) |
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191 { |
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192 iUpperFlowOn = ESendAccepted; |
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193 LOG( Flow()->iLogger->Printf(_L("StartSending to IP from DoSend()")); ) |
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194 Flow()->StartSending(); |
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195 } |
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196 } |
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197 } |
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198 |
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199 MLowerDataSender::TSendResult CPppBinderIp6::Send(RMBufChain& aPacket) |
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200 { |
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201 |
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202 #if EPOC_SDK==0x06000000 |
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203 iPppLcp->StartInactiveTimer(); |
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204 #endif |
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205 |
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206 RMBufPacket packet; |
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207 packet.Assign(aPacket); |
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208 RMBufPktInfo* info = packet.Unpack(); |
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209 |
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210 TPppAddr addr; |
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211 addr.SetProtocol(KPppIdIp6); |
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212 info->iDstAddr = addr; |
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213 |
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214 packet.Pack(); |
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215 |
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216 iSendQ.Append(packet); |
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217 iSendCallBack->CallBack(); |
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218 |
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219 if (!FsmIsThisLayerOpen() || !iLowerFlowOn) |
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220 { |
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221 iUpperFlowOn = ESendBlocked; |
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222 } |
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223 |
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224 return iUpperFlowOn; |
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225 } |
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226 |
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227 //-========================================================= |
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228 // MLowerControl methods |
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229 //-========================================================= |
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230 TInt CPppBinderIp6::GetName(TDes& aName) |
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231 { |
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232 __FLOG(_L8("CPppNifBinder6:\tGetName()")); |
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233 |
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234 aName.Copy(iIfName); |
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235 |
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236 return KErrNone; |
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237 } |
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238 |
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239 TInt CPppBinderIp6::BlockFlow(MLowerControl::TBlockOption /*aOption*/) |
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240 { |
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241 iLowerFlowOn = ESendBlocked; |
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242 return KErrNone; |
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243 } |
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244 |
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245 TInt CPppBinderIp6::GetConfig(TBinderConfig& aConfig) |
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246 { |
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247 TBinderConfig6* config = TBinderConfig::Cast<TBinderConfig6>(aConfig); |
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248 |
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249 if(config == NULL) |
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250 { |
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251 return KErrNotSupported; |
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252 } |
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253 |
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254 config->iFamily = KAfInet6; |
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255 |
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256 config->iInfo.iFeatures = KIfIsPointToPoint | KIfCanMulticast | KIfIsDialup; /* Feature flags */ |
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257 |
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258 TInt rxsz, txsz; |
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259 if (FsmIsThisLayerOpen()) |
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260 { |
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261 iPppLcp->PppLink()->GetSendRecvSize(rxsz, txsz); |
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262 config->iInfo.iMtu = txsz==0 ? KPppDefaultFrameSize : txsz; |
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263 config->iInfo.iRMtu = rxsz==0 ? KPppDefaultFrameSize : rxsz; |
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264 config->iInfo.iSpeedMetric = iPppLcp->PppLink()->SpeedMetric() / 1024; |
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265 } |
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266 else |
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267 { |
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268 config->iInfo.iMtu = KPppDefaultFrameSize; |
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269 config->iInfo.iRMtu = KPppDefaultFrameSize; |
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270 config->iInfo.iSpeedMetric = 0; |
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271 } |
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272 iPppLcp->SetMaxTransferSize(config->iInfo.iMtu); |
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273 |
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274 TEui64Addr* ifId = (TEui64Addr*)&config->iLocalId; |
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275 |
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276 ifId->Init(); |
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277 ifId->SetAddress(iLocalIfId); |
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278 |
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279 ifId = (TEui64Addr*)&config->iRemoteId; |
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280 ifId->Init(); |
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281 ifId->SetAddress(iRemoteIfId); |
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282 |
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283 // Setup static DNS address if required |
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284 |
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285 if (!iPrimaryDns.IsUnspecified()) |
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286 { |
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287 config->iNameSer1.SetAddress(iPrimaryDns); |
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288 if (!iSecondaryDns.IsUnspecified()) |
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289 config->iNameSer2.SetAddress(iSecondaryDns); |
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290 } |
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291 return KErrNone; |
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292 } |
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293 |
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294 // ################################################################ |
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295 |
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296 TInt CPppBinderIp6::FsmLayerStarted() |
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297 { |
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298 iPppLcp->PppOpen(); |
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299 return KErrNone; |
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300 } |
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301 |
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302 #if EPOC_SDK >= 0x06010000 |
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303 void CPppBinderIp6::FsmLayerFinished(TInt aReason) |
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304 #else |
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305 void CPppBinderIp6::FsmLayerFinished(TInt /*aReason*/) |
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306 #endif |
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307 { |
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308 #if EPOC_SDK >= 0x06010000 |
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309 iPppLcp->PppClose(aReason); |
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310 #else |
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311 iPppLcp->PppClose(); |
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312 #endif |
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313 Flow()->Progress(EPppProgressLinkDown, KErrNone); |
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314 } |
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315 |
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316 void CPppBinderIp6::FsmLayerUp() |
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317 { |
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318 // PPP is up. Inform the stakeholders. |
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319 // Note: |
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320 // It is important to signal Link Up first, then Flow On. |
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321 // Some clients, (e.g SPUD) may make assumptions as to the order of these notifications. |
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322 // Until LinkLayer Up is received, SPUD assumes that the NIF is not ready. |
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323 // Sending Flow On before LinkLayer Up may cause these clients to make the wrong conclusions and misbehave. |
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324 // Flow()->FlowUp(); // Inform control path: Link is up. |
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325 iPppLcp->NcpUp(); // Inform control path: Link is up. |
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326 SendFlowOn(); // Inform data path: ready to process data. |
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327 |
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328 Flow()->Progress(EPppProgressLinkUp, KErrNone); |
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329 Flow()->BinderLinkUp(CPppLcp::EPppIp6); |
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330 } |
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331 |
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332 void CPppBinderIp6::FsmLayerDown(TInt aReason) |
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333 { |
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334 LOG( iPppLcp->iLogger->Printf(_L("NCPIP6::FsmLayerDown reason[%d]. "),aReason); ) |
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335 |
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336 // Mobile IP Inter-PDSN Handoff support. |
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337 if(KErrNone == aReason) |
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338 { |
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339 Flow()->FlowDown(aReason, MNifIfNotify::ENoAction); |
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340 return; |
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341 } |
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342 |
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343 |
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344 // If the layer is down due to an error, it means that the FSM is terminating. |
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345 |
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346 // RFC1661 compliant Termination sequence support: |
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347 if(iTerminateRequestEnabled || iTerminateAckEnabled) |
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348 { |
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349 // LCP signals the Down event on all NCPs: |
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350 // We don't want to signal to Nifman from here, because LCP is not finished yet. |
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351 // We let LCP handle disconnection notification to Nifman |
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352 return; |
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353 } |
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354 |
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355 // Legacy shutdown support: |
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356 // Notify SCPR. |
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357 // When legacy shutdown is no longer required, this code can be safely removed. |
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358 if(KErrCommsLineFail == aReason && FsmIsThisLayerOpen()) |
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359 { |
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360 // This is a legacy EReconnect scenario |
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361 Flow()->FlowDown(aReason, MNifIfNotify::EReconnect); |
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362 } |
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363 else |
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364 { |
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365 Flow()->FlowDown(aReason, MNifIfNotify::EDisconnect); |
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366 } |
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367 |
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368 Flow()->Progress(EPppProgressLinkDown, aReason); |
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369 } |
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370 |
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371 |
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372 void CPppBinderIp6::FsmFillinConfigRequestL(RPppOptionList& aReqList) |
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373 { |
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374 const CIPConfig* ncpConfig = Flow()->GetNcpConfig(); |
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375 |
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376 // See whether we are configured to request a dynamic DNS address. |
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377 if(!ncpConfig->GetIp6DNSAddrFromServer()) |
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378 { |
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379 // Setup static DNS addresses from CommDb |
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380 LOG(iPppLcp->iLogger->Printf(_L("Configuring static IPv6 DNS addresses"));) |
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381 iPrimaryDns = ncpConfig->GetIp6NameServer1(); |
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382 iSecondaryDns = ncpConfig->GetIp6NameServer2(); |
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383 } |
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384 else |
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385 { |
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386 // Ensure that static DNS addresses are set as unspecified, |
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387 // so they are not used in Control(KSoIfConfig). |
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388 iPrimaryDns = KInet6AddrNone; |
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389 iSecondaryDns = KInet6AddrNone; |
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390 } |
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391 |
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392 RPppOption opt; |
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393 TMachineInfoV1Buf machineInfo; |
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394 |
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395 // |
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396 // Use the 64 bit id of MARM machines as our interface id |
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397 // |
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398 UserHal::MachineInfo(machineInfo); |
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399 iLocalIfId.SetAddr(machineInfo().iMachineUniqueId); |
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400 iLocalIfId.SetUniversalBit(0); |
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401 |
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402 // |
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403 // In WINS environment the id is zero which is no-no |
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404 // |
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405 if (iLocalIfId.IsZero()) |
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406 { |
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407 #ifdef NCPIP6_STATIC_ID |
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408 const TUint8 constantId[8] = { 0x1c, 0xe5, 0xb8, 0x4d, 0xd6, 0xfb, 0x10, 0x63 }; |
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409 iLocalIfId.SetAddr(constantId, sizeof (constantId)); |
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410 #else |
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411 iLocalIfId.SetAddrRandomNZ(); |
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412 #endif |
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413 } |
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414 |
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415 opt.SetL (KPppIp6cpOptInterfaceIdentifier, iLocalIfId.AddrPtr(), iLocalIfId.AddrLen()); |
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416 aReqList.Append(opt); |
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417 } |
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418 |
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419 void CPppBinderIp6::FsmCheckConfigRequest(RPppOptionList& aReqList, RPppOptionList& aAckList, RPppOptionList& aNakList, RPppOptionList& aRejList) |
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420 { |
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421 RPppOption opt; |
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422 |
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423 while (aReqList.Remove(opt)) |
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424 { |
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425 switch (opt.OptType()) |
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426 { |
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427 case KPppIp6cpOptCompressionProtocol: |
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428 aRejList.Append(opt); |
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429 break; |
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430 |
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431 case KPppIp6cpOptInterfaceIdentifier: |
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432 { |
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433 iRemoteIfId.SetAddr(opt.ValuePtr(), opt.ValueLength()); |
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434 |
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435 if (iLocalIfId.Match(iRemoteIfId) || iRemoteIfId.IsZero()) |
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436 { |
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437 iRemoteIfId.SetAddrRandomNZButNot(iLocalIfId); |
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438 Mem::Copy(opt.ValuePtr(), iRemoteIfId.AddrPtrC(), iRemoteIfId.AddrLen()); |
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439 aNakList.Append(opt); |
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440 } |
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441 else |
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442 { |
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443 aAckList.Append(opt); |
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444 |
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445 } |
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446 } |
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447 break; |
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448 |
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449 default: |
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450 aRejList.Append(opt); |
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451 break; |
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452 } |
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453 } |
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454 } |
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455 |
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456 void CPppBinderIp6::FsmApplyConfigRequest(RPppOptionList& aReqList) |
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457 { |
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458 TMBufPktQIter iter(aReqList); |
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459 RPppOption opt; |
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460 |
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461 while (opt = iter++, !opt.IsEmpty()) |
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462 { |
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463 switch (opt.OptType()) |
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464 { |
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465 case KPppIp6cpOptCompressionProtocol: |
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466 break; |
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467 |
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468 case KPppIp6cpOptInterfaceIdentifier: |
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469 iRemoteIfId.SetAddr(opt.ValuePtr(), opt.ValueLength()); |
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470 break; |
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471 |
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472 default: |
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473 break; |
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474 } |
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475 } |
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476 } |
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477 |
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478 void CPppBinderIp6::FsmRecvConfigAck(RPppOptionList& aRepList) |
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479 { |
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480 TMBufPktQIter iter(aRepList); |
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481 RPppOption opt; |
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482 |
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483 while (opt = iter++, !opt.IsEmpty()) |
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484 { |
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485 switch (opt.OptType()) |
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486 { |
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487 case KPppIp6cpOptCompressionProtocol: |
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488 break; |
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489 |
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490 case KPppIp6cpOptInterfaceIdentifier: |
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491 iLocalIfId.SetAddr(opt.ValuePtr(), opt.ValueLength()); |
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492 break; |
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493 |
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494 default: |
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495 break; |
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496 } |
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497 } |
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498 } |
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499 |
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500 void CPppBinderIp6::FsmRecvConfigNak(RPppOptionList& aRepList, RPppOptionList& aReqList) |
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501 { |
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502 TMBufPktQIter iter(aRepList); |
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503 RPppOption opt; |
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504 |
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505 while (opt = iter++, !opt.IsEmpty()) |
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506 { |
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507 switch (opt.OptType()) |
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508 { |
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509 case KPppIp6cpOptCompressionProtocol: |
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510 aReqList.ReplaceOption(opt); |
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511 break; |
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512 |
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513 case KPppIp6cpOptInterfaceIdentifier: |
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514 { |
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515 TE64Addr iIfId(opt.ValuePtr(), opt.ValueLength()); |
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516 |
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517 if (iLocalIfId.Match(iIfId)) |
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518 { |
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519 iLocalIfId.SetAddrRandomNZButNot(iIfId); |
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520 Mem::Copy(opt.ValuePtr(), iLocalIfId.AddrPtrC(), iLocalIfId.AddrLen()); |
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521 } |
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522 else |
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523 { |
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524 iLocalIfId.SetAddr(iIfId); |
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525 } |
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526 |
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527 aReqList.ReplaceOption(opt); |
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528 } |
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529 |
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530 break; |
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531 |
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532 default: |
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533 aReqList.ReplaceOption(opt); |
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534 break; |
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535 } |
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536 } |
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537 } |
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538 |
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539 void CPppBinderIp6::FsmRecvConfigReject(RPppOptionList& aRepList, RPppOptionList& aReqList) |
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540 { |
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541 TMBufPktQIter iter(aRepList); |
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542 RPppOption opt; |
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543 |
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544 while (opt = iter++, !opt.IsEmpty()) |
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545 { |
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546 switch (opt.OptType()) |
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547 { |
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548 case KPppIp6cpOptCompressionProtocol: |
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549 aReqList.RemoveOption(opt); |
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550 break; |
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551 |
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552 case KPppIp6cpOptInterfaceIdentifier: |
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553 FsmAbort(KErrNotReady); |
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554 break; |
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555 |
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556 default: |
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557 aReqList.RemoveOption(opt); |
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558 break; |
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559 } |
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560 } |
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561 } |
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562 |
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563 void CPppBinderIp6::KillProtocol() |
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564 { |
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565 FsmAbort(KErrCouldNotConnect); |
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566 return; |
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567 } |
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568 |
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569 TBool CPppBinderIp6::FsmRecvUnknownCode(TUint8 /*aCode*/, TUint8 /*aId*/, TInt /*aLength*/, RMBufChain& /*aPacket*/) |
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570 { |
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571 return EFalse; |
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572 } |
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573 |
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574 // ################################################################ |
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575 |
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576 void CPppBinderIp6::RecvIp(RMBufChain& aPacket) |
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577 { |
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578 if (iUpperReceiver) |
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579 iUpperReceiver->Process(aPacket); |
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580 else |
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581 aPacket.Free(); |
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582 } |
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583 |
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584 void CPppBinderIp6::Ip6KillProtocol() |
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585 { |
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586 __FLOG_2(_L8("this:%08x\tCPppBinderIp6::Ip6KillProtocol() - disconnecting because access was denied"), this, &iPppNifSubConnectionFlow); |
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587 |
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588 Flow()->FlowDown(KErrAccessDenied, MNifIfNotify::EDisconnect); |
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589 return; |
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590 } |
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591 |
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592 void CPppBinderIp6::Ip6FrameError() |
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593 { |
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594 return; |
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595 } |
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596 |
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597 #if EPOC_SDK >= 0x06010000 |
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598 TInt CPppBinderIp6::Notification(TAgentToNifEventType aEvent) |
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599 { |
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600 if (aEvent==EAgentToNifEventTypeModifyInitialTimer) |
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601 { |
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602 ChangeTimers(ETrue); |
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603 } |
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604 else |
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605 { |
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606 __ASSERT_DEBUG(EFalse, User::Invariant()); |
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607 } |
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608 return KErrNone; |
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609 } |
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610 #endif |