--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwconnectionmultiplexer/src/cncmsession.cpp Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,482 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Connection multiplexer session abstraction.
+*
+*/
+
+
+
+
+#include <e32math.h>
+#include <es_sock.h>
+#include <es_sock_partner.h>
+
+#include "cncmsession.h"
+#include "cncmstream.h"
+#include "cncmconnection.h"
+#include "cncmconnectionobserverhandler.h"
+#include "cncmlocaladdressresolver.h"
+#include "ncmconnectionmultiplexerlogs.h"
+#include "cncmportstore.h"
+#include "mncmsessionobserver.h"
+#include "mncmconnectionmultiplexerobserver.h"
+#include "natfwmediawrapper.h"
+#include "cncmicmpv4receiver.h"
+#include "cncmicmpv6receiver.h"
+
+const TUint KESockMessageSlots = 24;
+
+// ---------------------------------------------------------------------------
+// CNcmSessionSession::CNcmSession
+// ---------------------------------------------------------------------------
+//
+CNcmSession::CNcmSession( TUint aSessionId,
+ TUint32 aIapId,
+ MNcmConnectionMultiplexerObserver& aObserver,
+ MNcmSessionObserver& aSessionObserver ) :
+ CActive( EPriorityStandard ),
+ iSessionId( aSessionId ), iIapId( aIapId ), iObserver( aObserver ),
+ iSessionObserver( aSessionObserver )
+ {
+ CActiveScheduler::Add( this );
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::ConstructL( TUint aPortRangeStart, TUint aPortRangeStop )
+ {
+ iPortStore = CNcmPortStore::NewL( aPortRangeStart, aPortRangeStop );
+
+ User::LeaveIfError( iSocketServ.Connect( KESockMessageSlots ) );
+
+ iConnPref.SetDialogPreference( ECommDbDialogPrefDoNotPrompt );
+ iConnPref.SetIapId( iIapId );
+
+ User::LeaveIfError( iConnection.Open( iSocketServ ) );
+
+ TSecurityPolicy policy( ECapabilityNetworkServices );
+ TSecurityPolicyBuf securityBuf(policy);
+ User::LeaveIfError( iConnection.Control(
+ KCOLConnection, KCoEnableCloneOpen, securityBuf ) );
+
+ iConnection.Start( iConnPref, iStatus );
+ SetActive();
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::NewL
+// ---------------------------------------------------------------------------
+//
+CNcmSession* CNcmSession::NewL( TUint aSessionId,
+ TUint32 aIapId, TUint aPortRangeStart, TUint aPortRangeStop,
+ MNcmConnectionMultiplexerObserver& aObserver,
+ MNcmSessionObserver& aSessionObserver )
+ {
+ CNcmSession* self =
+ CNcmSession::NewLC( aSessionId, aIapId, aPortRangeStart,
+ aPortRangeStop, aObserver, aSessionObserver );
+
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::NewLC
+// ---------------------------------------------------------------------------
+//
+CNcmSession* CNcmSession::NewLC( TUint aSessionId,
+ TUint32 aIapId, TUint aPortRangeStart, TUint aPortRangeStop,
+ MNcmConnectionMultiplexerObserver& aObserver,
+ MNcmSessionObserver& aSessionObserver )
+ {
+ CNcmSession* self =
+ new( ELeave ) CNcmSession( aSessionId, aIapId,
+ aObserver, aSessionObserver );
+
+ CleanupStack::PushL( self );
+ self->ConstructL( aPortRangeStart, aPortRangeStop );
+ return self;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::~CNcmSession
+// ---------------------------------------------------------------------------
+//
+CNcmSession::~CNcmSession()
+ {
+ delete iIcmpV4receiver;
+ delete iIcmpV6receiver;
+ delete iPortStore;
+
+ TInt ind( iStreams.Count() );
+
+ while ( ind-- )
+ {
+ TRAP_IGNORE( RemoveStreamL( iStreams[ind]->StreamId() ) )
+ }
+
+ iConnection.Close();
+ Cancel();
+
+ iSocketServ.Close();
+ iStreams.Close();
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::CreateStreamL
+// ---------------------------------------------------------------------------
+//
+TUint CNcmSession::CreateStreamL( TInt aQos,
+ TUint aProtocol )
+ {
+ TUint streamId( GenerateStreamId() );
+
+ CNcmStream* item = CNcmStream::NewLC(
+ iSessionId, streamId, aQos, aProtocol );
+
+ iStreams.AppendL( item );
+ CleanupStack::Pop( item );
+
+ return item->StreamId();
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::RemoveStreamL
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::RemoveStreamL( TUint aStreamId )
+ {
+ TUint streamIndex( StreamIndexL( aStreamId ) );
+
+ delete iStreams[streamIndex];
+ iStreams.Remove( streamIndex );
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::ConnectionId
+// ---------------------------------------------------------------------------
+//
+TUint32 CNcmSession::IapId() const
+ {
+ return iIapId;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::ConnectionId
+// ---------------------------------------------------------------------------
+//
+TUint CNcmSession::SessionId() const
+ {
+ return iSessionId;
+ }
+
+
+// ---------------------------------------------------------------------------
+// From class CActive
+//
+// CNcmSession::RunL
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::RunL()
+ {
+ __CONNECTIONMULTIPLEXER_INT1(
+ "CNcmSession::RunL - iStatus: ", iStatus.Int() )
+
+ if ( iStatus != KErrNone )
+ {
+ iObserver.Notify( iSessionId, 0,
+ MNcmConnectionMultiplexerObserver::ESessionCreated,
+ iStatus.Int() );
+
+ iSessionObserver.SessionCreationFailed( iSessionId );
+ }
+ else
+ {
+ iInitialized = ETrue;
+
+ CNcmLocalAddressResolver* localAddressResolver(
+ CNcmLocalAddressResolver::NewLC( iSocketServ ) );
+
+ localAddressResolver->GetLocalAddrL( iIpv4Addr, iIpv6Addr, iIapId );
+ CleanupStack::PopAndDestroy( localAddressResolver );
+
+ if ( !iIpv4Addr.IsUnspecified() )
+ {
+ iIcmpV4receiver =
+ CNcmIcmpV4Receiver::NewL( iSocketServ, iConnection, *this );
+ }
+
+ if ( !iIpv6Addr.IsUnspecified() )
+ {
+ iIcmpV6receiver =
+ CNcmIcmpV6Receiver::NewL( iSocketServ,iConnection, *this );
+ }
+
+ iObserver.Notify( iSessionId, 0,
+ MNcmConnectionMultiplexerObserver::ESessionCreated,
+ iStatus.Int() );
+ }
+ }
+
+
+// ---------------------------------------------------------------------------
+// From class CActive
+//
+// DoCancel
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::DoCancel()
+ {
+ // RConnection doesn't cancel an outstanding request at Close()
+ // so we'll have to it "manually" here
+ if( iStatus.Int() == KRequestPending )
+ {
+ TRequestStatus* status = &iStatus;
+ User::RequestComplete( status, KErrCancel );
+ }
+ }
+
+
+// -----------------------------------------------------------------------------
+// From class CActive
+//
+// CNcmSession::RunError
+// -----------------------------------------------------------------------------
+//
+TInt CNcmSession::RunError( TInt aError )
+ {
+ __CONNECTIONMULTIPLEXER_INT1(
+ "CNcmSession::RunError aError: ", aError )
+
+ iObserver.Notify( iSessionId, 0,
+ MNcmConnectionMultiplexerObserver::ESessionCreated,
+ aError );
+
+ iSessionObserver.SessionCreationFailed( iSessionId );
+
+ aError = aError;
+ return KErrNone;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::StreamByIdL
+// ---------------------------------------------------------------------------
+//
+CNcmStream* CNcmSession::StreamByIdL(
+ TUint aStreamId )
+ {
+ TInt ind( iStreams.Count() );
+
+ while ( ind-- )
+ {
+ if ( iStreams[ind]->StreamId() == aStreamId )
+ {
+ return iStreams[ind];
+ }
+ }
+
+ return NULL;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::StreamIndexL
+// ---------------------------------------------------------------------------
+//
+TUint CNcmSession::StreamIndexL( TUint aStreamId )
+ {
+ TInt streamCount( iStreams.Count() );
+
+ for ( TInt i = 0; i < streamCount; i++ )
+ {
+ if ( iStreams[i]->StreamId() == aStreamId )
+ {
+ return i;
+ }
+ }
+
+ User::Leave( KErrNotFound );
+ return KErrNone; // To remove a compiler warning
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::SocketServer
+// ---------------------------------------------------------------------------
+//
+RSocketServ& CNcmSession::SocketServer()
+ {
+ return iSocketServ;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::Connection
+// ---------------------------------------------------------------------------
+//
+RConnection& CNcmSession::Connection()
+ {
+ return iConnection;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::GetConnectionName
+// ---------------------------------------------------------------------------
+//
+TInt CNcmSession::GetConnectionName( TName& aConnectionName )
+ {
+ return iConnection.Name( aConnectionName );
+ }
+
+
+// -----------------------------------------------------------------------------
+// CNcmSession::GenerateStreamId
+// -----------------------------------------------------------------------------
+//
+TUint CNcmSession::GenerateStreamId() const
+ {
+ return ( static_cast<TUint>( Math::Random() ) );
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::PortStore
+// ---------------------------------------------------------------------------
+//
+CNcmPortStore& CNcmSession::PortStore() const
+ {
+ __CONNECTIONMULTIPLEXER( "CNcmSession::PortStore" )
+
+ return *iPortStore;
+ }
+
+
+// ---------------------------------------------------------------------------
+// From class MNcmIcmpObserver
+//
+// Called as a result for ICMP error received
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::IcmpError( const TInetAddr& aAddress,
+ TInetAddr& aLocalAddress, TInetAddr& aRemoteAddress )
+ {
+ TRAP_IGNORE( this->HandleIcmpErrorL( aAddress, aLocalAddress,
+ aRemoteAddress ) )
+ }
+
+// ---------------------------------------------------------------------------
+// CNcmSession::HandleIcmpErrorL
+// ---------------------------------------------------------------------------
+void CNcmSession::HandleIcmpErrorL( const TInetAddr& aAddress,
+ TInetAddr& aLocalAddress, TInetAddr& aRemoteAddress )
+ {
+ __CONNECTIONMULTIPLEXER( "CNcmSession::HandleIcmpErrorL" )
+
+ TInt ind( iStreams.Count() );
+ TUint mediaConnectionId( 0 );
+
+ while ( ind-- )
+ {
+ mediaConnectionId = iStreams[ind]->MediaConnectionId();
+
+ if ( iStreams[ind]->ConnectionL( mediaConnectionId )->
+ CheckSenderValidityToSending( aAddress ) )
+ {
+ __CONNECTIONMULTIPLEXER(
+ "CNcmSession::HandleIcmpErrorL - ICMP ERROR VALID" )
+
+ iStreams[ind]->WrapperL()->GetAddresses(
+ aLocalAddress, aRemoteAddress );
+ return;
+ }
+ }
+
+ __CONNECTIONMULTIPLEXER(
+ "CNcmSession::HandleIcmpErrorL - ICMP ERROR NOT VALID" )
+ User::Leave( KErrNotFound );
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::Initialized
+// ---------------------------------------------------------------------------
+//
+TBool CNcmSession::Initialized() const
+ {
+ return iInitialized;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::ResolveDestinationAddressL
+// ---------------------------------------------------------------------------
+//
+void CNcmSession::ResolveDestinationAddressL( const TDesC8& aAddress,
+ TUint aPort, TInetAddr& aResult )
+ {
+ __CONNECTIONMULTIPLEXER_STR(
+ "CNcmSession::ResolveDestinationAddressL, FQDN", aAddress )
+
+ HBufC* addrBuf = HBufC::NewLC( aAddress.Length() );
+ TPtr addrPtr( addrBuf->Des() );
+ User::LeaveIfError(
+ CnvUtfConverter::ConvertToUnicodeFromUtf8( addrPtr, aAddress ) );
+
+ RHostResolver resolver;
+ CleanupClosePushL( resolver );
+ User::LeaveIfError( resolver.Open(
+ iSocketServ, KAfInet, KProtocolInetUdp, iConnection ) );
+ TNameEntry entry;
+ User::LeaveIfError( resolver.GetByName( *addrBuf, entry ) );
+
+ CleanupStack::PopAndDestroy( 2, addrBuf );
+
+ aResult = TInetAddr::Cast( entry().iAddr );
+ aResult.SetPort( aPort );
+
+ __CONNECTIONMULTIPLEXER_ADDRLOG(
+ "CNcmSession::ResolveDestinationAddressL, IP", aResult )
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::LocalIPv4Address
+// ---------------------------------------------------------------------------
+//
+TInetAddr& CNcmSession::LocalIPv4Address()
+ {
+ return iIpv4Addr;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CNcmSession::LocalIPv6Address
+// ---------------------------------------------------------------------------
+//
+TInetAddr& CNcmSession::LocalIPv6Address()
+ {
+ return iIpv6Addr;
+ }