1 /*

     2 * Copyright (c) 2008-2009 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:  Class that logs ike messages in pcap format

    15 *

    16 */

    17 

    18 #ifndef IKEPCAPTRACE_H

    19 #define IKEPCAPTRACE_H

    20 

    21 #include <f32file.h>

    22 

    23 class TInetAddr;

    24 

    25 /**

    26  *  PCap tracer of IKE messages.

    27  *

    28  *  Class that logs ike messages in pcap format

    29  * 

    30  */

    31 class CIkePcapTrace : public CBase

    32     {        

    33 public:

    34     enum TEncryptionType

    35         {

    36         EEncrDes = 2, 

    37         EEncrDes3 = 3,

    38         EEncrAesCbc = 12

    39         };

    40     

    41     static CIkePcapTrace* NewL(const TDesC& aLogFolder);

    42     ~CIkePcapTrace();

    43 

    44 

    45     /**

    46      * Traces the IKE message. 

    47      *

    48      * @param aMessage Traced IKE message

    49      * @param aSourceAddress IP address of the message sender (only IPv4 is supported)

    50      * @param aDestinationAddress IP address of the message receiver  (only IPv4 is supported)

    51      * @param aEncryptionType Used encryption algorithm. 

    52      *                        If the aMessage datagram is IKEv1 or if the IKEv2 datagram

    53      *                        does not contain encryption payload this parameter is not used.

    54      */

    55     void TraceMessage(const TDesC8& aMessage, 

    56                       const TInetAddr& aSourceAddress, 

    57                       const TInetAddr& aDestinationAddress,

    58                       TEncryptionType aEncryptionType);

    59     

    60 private:

    61     CIkePcapTrace();

    62     void ConstructL(const TDesC& aLogFolder);

    63 

    64     void DoTraceMessage(TPtr8& aMsgCopy, 

    65                         const TInetAddr& aSourceAddress, 

    66                         const TInetAddr& aDestinationAddress,

    67                         TEncryptionType aEncryptionType);

    68     

    69     

    70     TInt WritePcapHeader();

    71     

    72     TInt WriteRecordHeader(TUint32 aIkeMsgLength);

    73     TInt WriteIpAndUdpHeader(const TDesC8& aMessage,

    74                              TInetAddr aSourceAddress, 

    75                              TInetAddr aDestinationAddress);

    76     TInt WriteNonEspMarker();

    77     TInt WriteIkeMessage(TPtr8& aMsgCopy, TEncryptionType aEncryptionType);

    78     TInt WriteIkeV1Message(TPtr8& aMsgCopy);

    79     TInt WriteIkeV2Message(TPtr8& aMsgCopy, TEncryptionType aEncryptionType);

    80 

    81     

    82     RFs     iFileServer;

    83     RFile   iPcapFile;

    84     

    85     TBool iWriteTrace;

    86     };

    87 

    88 #endif //IKEPCAPTRACE_H

    89 

    90