1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // udp.h - UDP for IPv6/IPv4

    15 // UDP Protocol and Provider declarations.

    16 //

    17 

    18 

    19 

    20 /**

    21  @file udp.h

    22  @internalComponent

    23 */

    24 

    25 #ifndef __UDP_H__

    26 #define __UDP_H__

    27 

    28 #include "in_trans.h"

    29 #include <udp_hdr.h>

    30 #include <in_chk.h>

    31 

    32 

    33 const TUint KUdpDefaultRecvBuf =  32768;  //< Default receive window size.

    34 

    35 

    36 typedef TInet6Checksum<TInet6HeaderUDP> TInet6PacketUDP;

    37 

    38 

    39 /**

    40 UDP protocol implementation.

    41 

    42 @internalComponent

    43 */

    44 class CProtocolUDP6 : public CProtocolInet6Transport

    45 	{

    46 public:

    47 	CProtocolUDP6();

    48 	CProtocolUDP6& operator=(const CProtocolUDP6&);

    49 	virtual ~CProtocolUDP6();

    50 	virtual CServProviderBase *NewSAPL(TUint aProtocol);

    51 	virtual void InitL(TDesC& aTag);

    52 	virtual void StartL();

    53 	virtual void Identify(TServerProtocolDesc *) const;

    54 	//virtual TInt GetOption(TUint level,TUint name,TDes8 &option,CProtocolBase* aSourceProtocol=NULL);

    55 	//virtual TInt SetOption(TUint level, TUint aName,const TDesC8 &option,CProtocolBase* aSourceProtocol=NULL);

    56 	virtual TInt Send(RMBufChain& aPDU,CProtocolBase* aSourceProtocol=NULL);

    57 	virtual void Process(RMBufChain& aPacket, CProtocolBase *aSourceProtocol = NULL);

    58 	static void Describe(TServerProtocolDesc&);

    59 

    60 	TUint RecvBuf() const           { return iRecvBuf; }

    61 	TUint WaitNif() const           { return iWaitNif; }

    62 

    63 private:

    64 	// Global receive buffer setting read from udp_recv_buf. Can be overridden with socket option.

    65 	TUint iRecvBuf;

    66 	

    67 	// Set if the sender should be blocked to wait for interface startup.

    68 	TUint iWaitNif:1;

    69 	};

    70 

    71 

    72 /**

    73 UDP SAP declaration.

    74 

    75 @internalComponent

    76 */

    77 class CProviderUDP6 : public CProviderInet6Transport

    78 	{

    79 	friend class CProtocolUDP6;

    80 

    81 public:

    82 	CProviderUDP6(CProtocolInet6Base* aProtocol);

    83 	virtual ~CProviderUDP6();

    84 	virtual void InitL();

    85 	virtual TInt GetOption(TUint level,TUint name,TDes8 &anOption) const;

    86 	virtual void Ioctl(TUint level,TUint name,TDes8* anOption);

    87 	virtual void CancelIoctl(TUint aLevel, TUint aName);

    88 	virtual TInt SetOption(TUint level,TUint name, const TDesC8 &anOption);

    89 	//virtual void AutoBind() {}

    90 	virtual TInt SetRemName(TSockAddr &aAddr);

    91 	virtual void Shutdown(TCloseType option);

    92 	virtual void Process(RMBufChain& aPacket, CProtocolBase *aSourceProtocol = NULL);

    93 	virtual void Error(TInt aError, TUint aOperationMask = MSocketNotify::EErrorAllOperations);

    94 	virtual void CanSend();

    95 

    96 	// PRTv1.0 send and receive methods

    97 	virtual void GetData(TDes8 &aDesc,TUint options,TSockAddr *aAddr=NULL);

    98 

    99 	// PRTv1.5 send and receive methods

   100 	virtual TInt GetData(RMBufChain& aData, TUint aLength, TUint aOptions, TSockAddr* anAddr=NULL);

   101 

   102 private:

   103 	virtual TInt DoWrite(RMBufSendPacket &aPacket, RMBufSendInfo &aInfo, TUint aOptions, TUint aOffset); 

   104 	virtual TInt Recv(TDualBufPtr& aBuf, TUint aLength, TUint aOptions, TSockAddr* anAddr=NULL);

   105 

   106 	CProtocolUDP6* Protocol() const { return (CProtocolUDP6*)iProtocol; }

   107     

   108 	RMBufAllocator iBufAllocator;

   109 	RMBufPktQ iSockInQ;				//< Queue for incoming packets.

   110 	RMBufSendPacket iSockOutBuf;	//< Stores the last outgoing packet.

   111 	TUint iSockOutOffset;			//< Offset to the UDP header in iSockOutBuf.

   112 	TUint iSockInQLen;				//< Current input queue length in bytes.

   113 	TUint iSockInBufSize;			//< Buffer size for storing inbound data.

   114 	};

   115 

   116 

   117 #endif