1 /*

     2 * Copyright (c) 2007 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:  Send request data packets to the connected wlan network.

    15 *

    16 */

    17 

    18 

    19 #include <e32std.h>

    20 #include <e32svr.h>

    21 

    22 #include "cipapputilsaddressresolver.h"

    23 #include "dhcpconstants.h"

    24 #include "dhcpdatasender.h"

    25 #include "dhcppsylogging.h"

    26 

    27 _LIT8 (KDhcpWlanMacAddressFrmt, "" );

    28 const TInt KDhcpWlanMacAddressLength = 0x20;

    29 

    30 // ======== MEMBER FUNCTIONS ========

    31 

    32 // ---------------------------------------------------------------------------

    33 // NewL

    34 // ---------------------------------------------------------------------------

    35 //

    36 CDhcpDataRequestor* CDhcpDataRequestor::NewL(RSocket& aSocket)

    37     {

    38     CDhcpDataRequestor* self = new( ELeave ) CDhcpDataRequestor(aSocket);

    39     CleanupStack::PushL(self);

    40     self->ConstructL();

    41     CleanupStack::Pop(self);

    42     return self;

    43     }

    44 

    45 // ---------------------------------------------------------------------------

    46 // Destructor

    47 // ---------------------------------------------------------------------------

    48 //

    49 CDhcpDataRequestor::~CDhcpDataRequestor()

    50     {

    51     TRACESTRING( "CDhcpDataRequestor::~CDhcpDataRequestor" );

    52     Cancel();

    53     delete iIpAppUtilsResolver;

    54     }

    55 

    56 // ---------------------------------------------------------------------------

    57 // Constructor

    58 // ---------------------------------------------------------------------------

    59 //

    60 CDhcpDataRequestor::CDhcpDataRequestor(RSocket& aSocket):

    61     CActive ( EPriorityStandard ), iSocket ( aSocket )

    62     {

    63     CActiveScheduler::Add( this );

    64     }

    65 

    66 // ---------------------------------------------------------------------------

    67 // For sending a DHCP message. If a DHCP server address has been found then we

    68 // use that, but if it has not been found then we try broadcasting.

    69 // ---------------------------------------------------------------------------

    70 //

    71 void CDhcpDataRequestor::SendDHCPMessageL(TInetAddr aDhcpSrvAddr, TUint32 aIapProfileId,

    72         TRequestStatus& aStatus )

    73     {

    74     TRACESTRING2( "CDhcpDataRequestor::SendDHCPMessageL, dhcp server address: %u",

    75             aDhcpSrvAddr.Address() );

    76 

    77     // Make location request message.

    78     iIapProfileId = aIapProfileId;

    79 

    80     TBuf8<KDhcpWlanMacAddressLength> wlanMacAddress (KNullDesC8);

    81 

    82     User::LeaveIfError(

    83         iIpAppUtilsResolver->GetWlanMACAddress(wlanMacAddress,

    84             KDhcpWlanMacAddressFrmt)

    85         );

    86 

    87     User::LeaveIfError (

    88         iIpAppUtilsResolver->GetLocalIpAddressFromIap(iInetLclIpAddress, aIapProfileId)

    89         );

    90 

    91     TRACESTRING2( "CDhcpDataRequestor::SendDHCPMessage, local Ipaddres address: %u",

    92             iInetLclIpAddress.Address() );

    93 

    94     iLocationRequestMsg.MakeDhcpInformMsg (iInetLclIpAddress.Address(),

    95             wlanMacAddress );

    96 

    97     aStatus = KRequestPending;

    98     iClientStatus = &aStatus;

    99     TInetAddr inetAddr (aDhcpSrvAddr) ;

   100     inetAddr.SetPort( KDhcpDefaultSrvPort );

   101     iSocket.SendTo( iLocationRequestMsg, inetAddr, 0, iStatus, iLen );

   102     SetActive();

   103     }

   104 

   105 // ---------------------------------------------------------------------------

   106 // TransActionIdToFollow

   107 // ---------------------------------------------------------------------------

   108 //

   109 TUint32 CDhcpDataRequestor::TransActionIdToFollow ()

   110     {

   111     return iLocationRequestMsg.TransactionId();

   112     }

   113 

   114 // ---------------------------------------------------------------------------

   115 // ContructL

   116 // ---------------------------------------------------------------------------

   117 //

   118 void CDhcpDataRequestor::ConstructL ()

   119     {

   120     iIpAppUtilsResolver = CIPAppUtilsAddressResolver::NewL ();

   121     }

   122 

   123 // ---------------------------------------------------------------------------

   124 // RunL

   125 // ---------------------------------------------------------------------------

   126 //

   127 void CDhcpDataRequestor::RunL ()

   128     {

   129     TRACESTRING2( "CDhcpDataRequestor::RunL %d", iStatus.Int());

   130     TRequestStatus *status = iClientStatus;

   131     User::RequestComplete (status, iStatus.Int());

   132     }

   133 

   134 // ---------------------------------------------------------------------------

   135 // CDhcpDataRequestor::DoCancel

   136 // ---------------------------------------------------------------------------

   137 //

   138 void CDhcpDataRequestor::DoCancel ()

   139     {

   140     TRACESTRING( "CDhcpDataRequestor::DoCancel" );

   141     iSocket.CancelSend();

   142     }