1 /**

     2 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * SSL3.0 and TLS1.0 Record items header file.

    16 * This file contains definitions for SSL3.0 and TLS1.0 Record items.

    17 * 

    18 *

    19 */

    20 

    21 

    22 

    23 /**

    24  @file TlsRecordItem.h

    25 */

    26 

    27 #include <comms-infras/recorditem.h>

    28 

    29 #ifndef _TLSRECORDITEM_H_

    30 #define _TLSRECORDITEM_H_

    31 

    32 // Enumeration values for the Record protocol's Content types

    33 enum ETlsRecordType 

    34 { 

    35 	ETlsChangeCipherContentType = 20,		/** Change Cipher Spec message */

    36 	ETlsAlertContentType = 21,				/** Alert message */

    37 	ETlsHandshakeContentType = 22,			/** Handshake message */

    38 	ETlsAppDataContentType = 23				/** Application data */

    39 };

    40 

    41 // Constants for a Record header object

    42 const TInt KTlsRecordHeaderSize = 5;		// No. of bytes in Record Protocol header

    43 const TInt KTlsRecordTypeOffset = 0;		// Offset of Record Content type within header: 1 byte

    44 const TInt KTlsRecordVersionOffset = 1;		// Offset of Protocol version within header: 2 bytes

    45 const TInt KTlsRecordLengthOffset = 3;		// Offset of Record length within header: 3 bytes

    46 const TInt KTlsRecordBodyLength = 2;		// Size of Record body length, 2 bytes

    47  

    48 // Record protocol fragment sizes, these are RFC2246 specified values

    49 // Compression adds 1024 bytes to Plain text, but NULL compression is currently supported

    50 const TInt KTlsRecordCompressedText = 0x0000;

    51 const TInt KTlsRecordPlainText = 0x4000;							

    52 const TInt KTlsRecordCipherText = 0x0400; // Ciphering adds 1024 bytes to Compressed text

    53 const TInt KTlsRecordMaxBodySize = KTlsRecordPlainText + KTlsRecordCompressedText + KTlsRecordCipherText;

    54 const TInt KTlsRecordPlainTextToSend = 0x800; //max recordbody to be send

    55 const TInt KTlsRecordPrealocate = KTlsRecordPlainTextToSend + KTlsRecordHeaderSize + KTlsRecordCompressedText + KTlsRecordCipherText;

    56 

    57 // Constants for message items

    58 const TInt KTlsRandomBodyLength = 32;		// Length of client/server random value

    59 

    60 class CRecordHeader : public CItem< TConstant >

    61 {

    62 public:

    63    CRecordHeader( CItemBase* aNext ) :

    64       CItem< TConstant >( aNext, KTlsRecordHeaderSize ),

    65       iRecord( NULL )

    66    {

    67       iRecord.iFirst = this;

    68    }

    69 

    70 public:

    71    TRecord iRecord;

    72 };

    73 

    74 class CRandomItem : public CConstItem

    75 /**

    76  * @class This class represents a Client and Server Hello random value.

    77  *

    78  * @brief The Client random value is obtained via the TLS Provider API. This 32-byte 

    79  * value has 4 bytes which represent the system time and 28 bytes obtained from a PRNG

    80  * (Pseudo-random number generator). The Server Random is obtained from a Server Hello 

    81  * message.

    82  */

    83 {

    84 public:

    85 	CRandomItem( CItemBase* aNext ) : 

    86 	  CConstItem( aNext, KTlsRandomBodyLength ) {} 

    87 };

    88 

    89 #endif