author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 26 Jan 2010 15:23:49 +0200 | |
changeset 0 | af10295192d8 |
permissions | -rw-r--r-- |
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// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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/** |
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@file |
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@internalComponent |
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*/ |
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#if !defined(__ETHER802_H__) |
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#define __ETHER802_H__ |
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#include <networking/pktdrv.h> |
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#include <comms-infras/nifif.h> //needed for cnififfactory. |
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#include <in_sock.h> |
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#include <comms-infras/commsdebugutility.h> |
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#include <comms-infras/ss_subconnflow.h> |
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#include <comms-infras/ss_flowbinders.h> |
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#ifdef __FLOG_ACTIVE |
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#define TCPDUMP_LOGGING // log all ethernet frame in pcap format |
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#endif // __FLOG_ACTIVE |
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class TLanProvision; |
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class TLanLinkProvision; |
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const TInt KUidEthintNifmanInterface = 0x10000541; |
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const TInt KAuthenticationComplete = 5; |
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const TInt KEtherMaxFrame = 1492; |
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const TInt KEtherSpeedInKbps = 10000; |
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const TInt KProtocolAddressSize=4; //Address size of IP4 |
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const TInt KNetworkAddressSize=6; //Address size for Ether MAC |
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const TInt KArpMacMulticastMask=0x7FFFFF; |
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enum TEtherHeaderType{EStandardEthernet, ELLCEthernet}; // Ethernet header types |
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/******************************************************************************* |
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* A quick intro to the Ethernet packet format: |
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* |
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* A plain frame looks like this: |
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* |
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* struct EtherFrame { |
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* TUint64 iDestAddr, iSrcAddr; |
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* TUint16 iType; // Denotes the Protocol Type == Service Access Point == SAP |
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* TUint8 iData[1500]; // Payload. |
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* }; |
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* |
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* iType denotes the type of the payload, 0x0800 denotes IP. |
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* 0x0806 denotes ARP. |
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* >=Min, <=1500 denotes LLC. |
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* A frame may also contain an extra 'LLC' field which encapsulates the original |
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* payload in a 5 byte header. The LLC field is somewhat complex, but here we |
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* confine ourselves to the LLC-SNAP variant. |
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* |
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* struct EtherLLCFrame { |
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* TUint64 iDestAddr, iSrcAddr; |
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* TUint16 iLen; // Denotes the Len and must be <=1500 so as not to conflict |
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* // With iType interpretation. |
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* TUint8 iDSAP=0xAA; // Which denotes an LLC-SNAP frame. |
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* TUint8 iSSAP=0xAA; // Which denotes an LLC-SNAP frame. |
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* TUint8 iCTRL=3; // Which denotes an LLC-SNAP frame encapsulated by |
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* // Ethernet. |
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* TUint24 OUI=iDstAddr&0xffffff; // 0 is also a valid value. |
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* TUint16 iType; // The actual iType as described earlier. |
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* TUint8 iData[1492]; // Payload. |
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* }; |
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* |
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*******************************************************************************/ |
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_LIT(ETHER802_CONFIG_FILENAME, "ether802.ini"); |
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_LIT(KInterfaceSection,"interface_settings"); |
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_LIT(KEthernetSection,"ethernet_settings"); |
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const TUint32 KDefaultSpeedMetricSetting = 0; |
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const TUint32 KDefaultMtuSetting = 1500; |
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const TUint32 KMACByteLength = 6; |
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const TUint32 KDestAddrOffset = 8; |
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// For the purposes of Wants, we define the protocol code as a pair: |
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// EtherType, IPType... we don't know the link layer above is definitely |
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// using IP packets... |
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const TUint16 KIPFrameType = 0x800; |
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const TUint16 KIP6FrameType = 0x86DD; |
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const TUint16 KArpFrameType= 0x806; |
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const TUint8 KLLC_SNAP_DSAP = 0xAA; |
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const TUint8 KLLC_SNAP_SSAP = 0xAA; |
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const TUint8 KLLC_SNAP_CTRL = 3; |
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/** |
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@internalComponent |
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*/ |
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struct TEtherFrame |
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{ |
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TUint16 GetType() const { return BigEndian::Get16((TUint8*)&iTypeLen); } |
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TUint16 iDestAddr[3]; |
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TUint16 iSrcAddr[3]; |
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TUint16 iTypeLen; // Denotes the Protocol Type <=> Service Access Point <=> SAP |
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TUint8 iData[KDefaultMtuSetting]; // Payload. |
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}; |
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113 |
|
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const TUint KEtherHeaderSize=14; |
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const TUint KEtherLLCHeaderSize=KEtherHeaderSize+8; |
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116 |
|
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/** |
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@internalComponent |
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*/ |
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struct TEtherLLCFrame |
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{ |
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TUint16 GetType() const { return (TUint16)((iTypeHi<<8)|iTypeLo); } |
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void SetType(TUint16 aType) |
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{ |
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iTypeHi=(TUint8)(aType>>8); iTypeLo=(TUint8)(aType&0xff); |
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} |
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void SetDestAddr( TDesC8& aDest); |
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void SetSrcAddr( TDesC8& aSrc); |
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void SetOUI( TUint32 aOUI); |
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TUint16 iDestAddr[3]; |
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TUint16 iSrcAddr[3]; |
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TUint16 iTypeLen; |
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TUint8 iDSAP; // Which denotes an LLC-SNAP frame. |
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TUint8 iSSAP; // Which denotes an LLC-SNAP frame. |
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TUint8 iCtrl; // Which denotes an LLC-SNAP frame encapsulated by |
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// Ethernet. |
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TUint8 OUI[3]; |
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TUint8 iTypeHi; |
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TUint8 iTypeLo; // The actual iType as described earlier. |
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TUint8 iData[1492]; // Payload. |
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}; |
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142 |
|
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class CLanxBearer; |
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typedef CArrayPtrFlat<CLanxBearer> CLanxBearerPtrArray; |
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145 |
|
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class CEthLog; |
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147 |
|
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/** |
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Main LAN Nif Control object creates lower layer objects :- |
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150 |
Packet Driver & EtherXXX |
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Calls back to protocol (iProtocol) and nifman (iNotifier in CNifIfBase) |
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Calls down to EtherXX (iMacLayer) |
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@internalComponent |
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*/ |
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class CLANLinkCommon : public ESock::CSubConnectionFlowBase, public ESock::MFlowBinderControl |
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156 |
{ |
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friend class CPktDrvBase; |
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158 |
|
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159 |
public: |
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enum TAction |
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161 |
{ |
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EReconnect, |
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EDisconnect |
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}; |
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165 |
|
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IMPORT_C static CLANLinkCommon* NewL(ESock::CSubConnectionFlowFactoryBase& aFactory, const Messages::TNodeId& aSubConnId, ESock::CProtocolIntfBase* aProtocolIntf); |
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167 |
|
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~CLANLinkCommon(); |
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void ConstructL(); |
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170 |
|
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// from MFlowBinderControl |
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virtual ESock::MLowerControl* GetControlL(const TDesC8& aProtocol); |
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virtual ESock::MLowerDataSender* BindL(const TDesC8& aProtocol, ESock::MUpperDataReceiver* aReceiver, ESock::MUpperControl* aControl); |
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virtual void Unbind(ESock::MUpperDataReceiver* aReceiver, ESock::MUpperControl* aControl); |
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virtual ESock::CSubConnectionFlowBase* Flow(); |
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176 |
|
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// from Messages::ANode |
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TInt ReceivedL(Messages::TSignatureBase& aCFMessage); |
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|
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// Dispatch functions for messages received from SCPR. |
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181 |
|
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void StartFlow(); |
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void StopFlow(TInt aError); |
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void SubConnectionGoingDown(); |
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void SubConnectionError(TInt aError); |
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void BindToL(Messages::TNodeId& aCommsBinder); |
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void ProvisionConfig(const Meta::SMetaData* aConfigData); |
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|
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void Destroy(); |
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|
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// Utility functions for sending messages to SCPR. |
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void PostProgressMessage(TInt aStage, TInt aError); |
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void PostDataClientStartedMessage(); |
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void PostFlowDownMessage(TInt aError); |
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void PostSimpleErrorMessage(TInt aError); |
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// CSubConnectionFlowBase |
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MFlowBinderControl* DoGetBinderControlL(); |
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199 |
|
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// |
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// Upcalls from the packet driver |
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// |
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IMPORT_C void Process(RMBufChain& aPdu, TAny* aMAC=0); |
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IMPORT_C void ResumeSending(); // Flow Control unblocked |
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IMPORT_C void LinkLayerUp(); // Notify the Protocol that the line is up |
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IMPORT_C void LinkLayerDown(TInt aError, TAction aAction); // Notify the Protocol that the line is down |
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IMPORT_C void FoundMACAddrL(); // Added for interfaces that take a while to find their MAC addrs |
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IMPORT_C TInt ReadInt(const TDesC& aField, TUint32& aValue); |
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IMPORT_C TInt WriteInt(const TDesC& aField, TUint32 aValue); |
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IMPORT_C TInt ReadDes(const TDesC& aField, TDes8& aValue); |
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IMPORT_C TInt ReadDes(const TDesC& aField, TDes16& aValue); |
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IMPORT_C TInt WriteDes(const TDesC& aField, const TDesC8& aValue); |
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IMPORT_C TInt WriteDes(const TDesC& aField, const TDesC16& aValue); |
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IMPORT_C TInt ReadBool(const TDesC& aField, TBool& aValue); |
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IMPORT_C TInt WriteBool(const TDesC& aField, TBool aValue); |
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IMPORT_C void IfProgress(TInt aStage, TInt aError); |
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IMPORT_C void IfProgress(TSubConnectionUniqueId aSubConnectionUniqueId, TInt aStage, TInt aError); |
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IMPORT_C void NifEvent(TNetworkAdaptorEventType aEventType, TUint aEvent, const TDesC8& aEventData, TAny* aSource=0); |
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TUint Mtu() const; |
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TUint SpeedMetric() const {return KEtherSpeedInKbps; } |
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TEtherHeaderType EtherType() const { return iEtherType; } |
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const TBuf8<KMACByteLength>& MacAddress() const; |
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TInt FrameSend(RMBufChain& aPdu, TAny* aSource=0, TUint16 aType=KIPFrameType); |
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protected: |
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CLANLinkCommon(ESock::CSubConnectionFlowFactoryBase& aFactory, const Messages::TNodeId& aSubConnId, ESock::CProtocolIntfBase* aProtocolIntf); |
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private: |
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// |
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// Configuration methods |
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TBool ReadMACSettings(); |
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void ReadEthintSettingsL(); |
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TInt EtherFrame(RMBufChain &aChain, TUint16 aType=KIPFrameType); |
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TBool CheckMac(TDes8& aMacAddr); // checks that the packet driver has returned a valid MAC address, |
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//New. |
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TInt GetProtocolType(RMBufChain& aPdu, TUint16& aEtherType, TUint8*& aPayloadPtr, TUint& aEtherHeaderSize) const; |
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// |
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// Driver managment |
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void LoadPacketDriverL(); |
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// Search CLanxBearer array by various keys (used in bind/unbind/provisioning) |
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CLanxBearer* FindBearerByProtocolName(const TDesC8& aProtocol, TInt& aIndex) const; |
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CLanxBearer* FindBearerByUpperControl(const ESock::MUpperControl* aUpperControl, TInt& aIndex) const; |
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// Provisioning |
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void ProvisionConfigL(const TLanProvision* aEthConfig); |
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void ProvisionBearerConfig(const TDesC8& aName); |
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const TLanLinkProvision& LinkProvision(); |
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private: |
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// Creates packet driver methods |
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CPktDrvFactory* DoCreateDriverFactoryL(TUid aUid2,const TDesC& aFilename); |
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CPktDrvFactory* iPktFactory; |
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// This class creates the packet driver and binds it to the mac layer |
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CPktDrvBase* iPktDrv; |
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//MAC Address |
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TBuf8<KMACByteLength> iMacAddr; |
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//indicates if iMacAddr contains a valid Mac address |
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TBool iValidMacAddr; |
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TEtherHeaderType iEtherType; |
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// Bearer List: |
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CLanxBearerPtrArray *iBearers; |
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#ifdef TCPDUMP_LOGGING |
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private: |
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CEthLog* iLogger; |
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#endif // TCPDUMP_LOGGING |
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const TLanProvision* iLanProvision; // full provisioning information from SCPR |
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#ifdef _DEBUG |
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TInt iStarted:1; // for sanity checking SCPR message sequence |
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#endif |
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}; |
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inline const TBuf8<KMACByteLength>& CLANLinkCommon::MacAddress() const |
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{ |
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return iMacAddr; |
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} |
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#endif |