--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natpnatfwsdpprovider/src/nspstatelocalcand.cpp	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,262 @@
+/*
+* 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:  Localcand state implementation.
+*
+*/
+
+#include <sdpdocument.h>
+#include "nspstatelocalcand.h"
+#include "nspevents.h"
+#include "nspsession.h"
+#include "nspactionset.h"
+#include "nspsessiondata.h"
+#include "nspcontentparser.h"
+#include "nspdefs.h"
+
+static void CondAddMismatchL( CNSPSession& aSession,
+		CSdpDocument& aOffer, CSdpDocument& aAnswer )
+	{
+	if ( aSession.Data().SubState() == CNSPSessionData::ESubMismatch ||
+	     aSession.Data().SubState() == CNSPSessionData::ESubAll )
+		{
+		aSession.Parser().AddMismatchL( aOffer, aAnswer );
+		}
+	}
+
+// ======== MEMBER FUNCTIONS ========
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::CNSPStateLocalCand
+// ---------------------------------------------------------------------------
+//
+CNSPStateLocalCand::CNSPStateLocalCand()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::NewL
+// ---------------------------------------------------------------------------
+//
+CNSPStateLocalCand* CNSPStateLocalCand::NewL()
+    {
+    CNSPStateLocalCand* self = CNSPStateLocalCand::NewLC();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::NewLC
+// ---------------------------------------------------------------------------
+//
+CNSPStateLocalCand* CNSPStateLocalCand::NewLC()
+    {
+    CNSPStateLocalCand* self = new ( ELeave ) CNSPStateLocalCand;
+    CleanupStack::PushL( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::~CNSPStateLocalCand
+// ---------------------------------------------------------------------------
+//
+CNSPStateLocalCand::~CNSPStateLocalCand()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::DoAcceptL
+// ---------------------------------------------------------------------------
+//
+TBool CNSPStateLocalCand::DoAcceptL( TNSPStateMachineEvent& aEvent )
+    {
+    User::LeaveIfError(
+            TNSPStateMachineEvent::ENat == aEvent.Request() ||
+            TNSPStateMachineEvent::EUpdate == aEvent.Request() ||
+            TNSPStateMachineEvent::EReservationStatus == aEvent.Request() ||
+            TNSPStateMachineEvent::ECloseSession == aEvent.Request() ?
+                    KErrNone : KErrArgument );
+    
+    return ETrue;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::DoStateEntryL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::DoStateEntryL( TNSPStateMachineEvent& aEvent )
+    {
+    aEvent.Session().Actions().LoadPluginL();
+    aEvent.Session().Actions().FetchL();
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::DoReverse
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::DoReverse( TNSPStateMachineEvent& /*aEvent*/ )
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::DoApplyL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::DoApplyL( TNSPStateMachineEvent& aEvent )
+    {
+    switch( aEvent.Request() )
+        {
+        case TNSPStateMachineEvent::ENat:
+            {
+            ControlMediaL( aEvent );
+            break;
+            }
+        
+        case TNSPStateMachineEvent::EUpdate:
+            {
+            ApplyUpdateL( aEvent );
+            break;
+            }
+        
+        case TNSPStateMachineEvent::EReservationStatus:
+            {
+            aEvent.Status() = KNatAsync;
+            break;
+            }
+        
+        case TNSPStateMachineEvent::ECloseSession:
+            {
+            aEvent.Status() = KNatReady;
+            break;
+            }
+        
+        default:
+            {
+            User::Leave( KErrArgument );
+            }
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::DoExitL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::DoExitL( TNSPStateMachineEvent& aEvent )
+    {
+    CNSPSession& session = aEvent.Session();
+    
+    switch( aEvent.Request() )
+        {
+        case TNSPStateMachineEvent::ENat:
+            {
+            if ( ANSWERER( session.Role() ) )
+            	{
+            	aEvent.Answer() = session.Data().ReleaseAnswer();
+            	aEvent.CallbackType() = TEventReturnStatus::EAnswerReady;
+            	}
+            
+            break;
+            }
+        
+        default:
+            {
+            User::Leave( KErrArgument );
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::ControlMediaL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::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;
+    	}
+    }
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::ApplyNatL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::ApplyNatL( TNSPStateMachineEvent& aEvent ) const
+    {
+    CNSPSession& session = aEvent.Session();
+    CSdpDocument& offer = session.Data().Offer();
+    TNSPStateIndex nextstate = KStateIndexNegotiating;
+    TNatReturnStatus status = KNatReady;
+    
+    if ( OFFERER( session.Role() ) )
+        {
+        session.Actions().FirstRoundL( offer );
+        }
+    else if ( ANSWERER( session.Role() ) )
+        {
+        CSdpDocument& answer = session.Data().Answer();
+        
+        session.Actions().FirstRoundL( answer );
+        CondAddMismatchL( session, offer, answer );
+        session.Actions().SetInboundCredentialsL();
+        
+        session.Actions().GetCredentialsL( offer );
+        session.Actions().GetCandidatesL( offer );
+        
+        nextstate = ( session.Data().UseIce() ?
+                KStateIndexResolving : KStateIndexActivating );
+        status = KNatAsync;
+        }
+    else
+        {
+        User::Leave( KErrArgument );
+        }
+    
+    aEvent.NextState() = nextstate;
+    aEvent.Status() = status;
+    }
+
+
+// ---------------------------------------------------------------------------
+// CNSPStateLocalCand::ApplyUpdateL
+// ---------------------------------------------------------------------------
+//
+void CNSPStateLocalCand::ApplyUpdateL( TNSPStateMachineEvent& aEvent ) const
+    {
+    CNSPSession& session = aEvent.Session();
+    CSdpDocument* offer = aEvent.Offer();
+    
+    if ( KNatAsync == session.Actions().GetCandidatesL( *offer ) )
+        {
+        session.Actions().UpdateL();
+        }
+    
+    aEvent.Status() = KNatAsync;
+    }
+
+// end of file