--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natpnatfwsdpprovider/src/nspstatenegotiating.cpp	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,284 @@
+/*
+* Copyright (c) 2007 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:  Negotiating state implementation.
+*
+*/
+
+#include <sdpdocument.h>
+#include "nspstatenegotiating.h"
+#include "nspevents.h"
+#include "nspsession.h"
+#include "nspactionset.h"
+#include "nspsessiondata.h"
+#include "nspdefs.h"
+
+#define MISMATCH( aData ) \
+    ( aData.SubState() == CNSPSessionData::ESubMismatch ||\
+      aData.SubState() == CNSPSessionData::ESubAll )
+#define REMOTELITE( aData ) \
+    ( aData.SubState() == CNSPSessionData::ESubRemoteLite ||\
+      aData.SubState() == CNSPSessionData::ESubAll )
+
+// ======== MEMBER FUNCTIONS ========
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::CNSPStateNegotiating
+// ---------------------------------------------------------------------------
+//
+CNSPStateNegotiating::CNSPStateNegotiating()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::NewL
+// ---------------------------------------------------------------------------
+//
+CNSPStateNegotiating* CNSPStateNegotiating::NewL()
+    {
+    CNSPStateNegotiating* self = CNSPStateNegotiating::NewLC();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::NewLC
+// ---------------------------------------------------------------------------
+//
+CNSPStateNegotiating* CNSPStateNegotiating::NewLC()
+    {
+    CNSPStateNegotiating* self = new ( ELeave ) CNSPStateNegotiating;
+    CleanupStack::PushL( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::~CNSPStateNegotiating
+// ---------------------------------------------------------------------------
+//
+CNSPStateNegotiating::~CNSPStateNegotiating()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::DoAcceptL
+// ---------------------------------------------------------------------------
+//
+TBool CNSPStateNegotiating::DoAcceptL( TNSPStateMachineEvent& aEvent )
+    {
+    User::LeaveIfError(
+            TNSPStateMachineEvent::ENat == aEvent.Request() ||
+            TNSPStateMachineEvent::EUpdate == aEvent.Request() ||
+            TNSPStateMachineEvent::EDecodeAnswer == aEvent.Request() ||
+            TNSPStateMachineEvent::EReservationStatus == aEvent.Request() ||
+            TNSPStateMachineEvent::ECloseSession == aEvent.Request() ?
+                    KErrNone : KErrArgument );
+    
+    return ETrue;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::DoStateEntryL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::DoStateEntryL( TNSPStateMachineEvent& aEvent )
+    {
+    CNSPSession& session = aEvent.Session();
+    
+    if ( OFFERER( session.Role() ) )
+        {
+        session.Actions().SetInboundCredentialsL();
+        aEvent.Offer() = session.Data().ReleaseOffer();
+        aEvent.CallbackType() = TEventReturnStatus::EOfferReady;
+        }
+    else
+        {
+        User::Leave( KErrArgument );
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::DoReverse
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::DoReverse( TNSPStateMachineEvent& aEvent )
+    {
+    aEvent.Session().Data().SetAnswer( NULL );
+    aEvent.Session().Role() = CNSPSession::EUndefined;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::DoApplyL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::DoApplyL( TNSPStateMachineEvent& aEvent )
+    {
+    switch( aEvent.Request() )
+        {
+        case TNSPStateMachineEvent::ENat:
+            {
+            ControlMediaL( aEvent );
+            break;
+            }
+        
+        case TNSPStateMachineEvent::EDecodeAnswer:
+            {
+            ApplyDecodeAnswerL( aEvent );
+            break;
+            }
+        
+        case TNSPStateMachineEvent::EReservationStatus:
+            {
+            aEvent.Status() = KNatAsync;
+            break;
+            }
+        
+        case TNSPStateMachineEvent::ECloseSession:
+            {
+            aEvent.Status() = KNatReady;
+            break;
+            }
+        case TNSPStateMachineEvent::EUpdate:
+            {
+            break;
+            }
+        default:
+            {
+            User::Leave( KErrArgument );
+            }
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::DoExitL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::DoExitL( TNSPStateMachineEvent& aEvent )
+    {
+    CNSPSession& session = aEvent.Session();
+    
+    switch( aEvent.Request() )
+        {
+        case TNSPStateMachineEvent::ENat:
+            {
+            break;
+            }
+        
+        case TNSPStateMachineEvent::EDecodeAnswer:
+            {
+            session.Data().SetAnswer( aEvent.Answer()->CloneL() );
+            session.Role() = CNSPSession::EOfferer;
+            break;
+            }
+        
+        default:
+            {
+            User::Leave( KErrArgument );
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::ControlMediaL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::ControlMediaL( TNSPStateMachineEvent& aEvent ) const
+    {
+    TNSPStateMachineMediaEvent& event = MEDIAEVENT( aEvent );
+    TNatReturnStatus status = event.Session().Actions().ControlMediaL(
+    		event.StreamId(), event.Event(), event.Status(), event.Data() );
+    
+    if ( NSP_TRIGGER( status ) )
+    	{
+    	ApplyNatL( event );
+    	}
+    else
+    	{
+        event.Status() = status;
+    	}
+    }
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::ApplyNatL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::ApplyNatL( TNSPStateMachineEvent& aEvent ) const
+    {
+    CNSPSession& session = aEvent.Session();
+    
+    if ( OFFERER( session.Role() ) )
+        {
+        CSdpDocument& answer = session.Data().Answer();
+        session.Actions().GetCredentialsL( answer );
+        session.Actions().GetCandidatesL( answer );
+        aEvent.NextState() = ( session.Data().UseIce() ?
+                KStateIndexResolving : KStateIndexActivating );
+        aEvent.Status() = KNatAsync;
+        }
+    else if ( ANSWERER( session.Role() ) )
+        {
+        session.Actions().FirstRoundL( session.Data().UpdatedSdp(), EFalse );
+        aEvent.Offer() =  session.Data().ReleaseUpdatedSdp();
+        aEvent.CallbackType() = TEventReturnStatus::EUpdateSdp;
+        }
+    else
+        {
+        User::Leave( KErrArgument );
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateNegotiating::ApplyDecodeAnswerL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateNegotiating::ApplyDecodeAnswerL( TNSPStateMachineEvent& aEvent )
+        const
+    {
+    TNatReturnStatus status = KNatReady;
+    CNSPSession& session = aEvent.Session();
+    CSdpDocument* answer = aEvent.Answer();
+    
+    session.Actions().RemoveStreamsL( *answer );
+    status = session.Actions().GetSessionModifiersL( *answer,
+        CNSPSession::EOfferer );
+    
+    CNSPSessionData& sessionData = session.Data();
+    if ( KNatAsync == status && !REMOTELITE( sessionData ) )
+        {
+        session.Data().SetAnswer( answer->CloneL() );
+        session.Role() = CNSPSession::EOfferer;
+        session.Actions().RestartWithoutIce();
+        session.Actions().LoadPluginL();
+        session.Actions().FetchL();
+        }
+    else
+        {
+        session.Actions().GetCredentialsL( *answer );
+        session.Actions().GetCandidatesL( *answer );
+        aEvent.NextState() = ( session.Data().UseIce() ?
+                KStateIndexResolving : KStateIndexActivating );
+        }
+    
+    aEvent.Status() = KNatAsync;
+    }
+
+
+// end of file