diff -r 000000000000 -r 1bce908db942 multimediacommsengine/mmcesrv/mmceserver/src/mcenatstateconnected.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/multimediacommsengine/mmcesrv/mmceserver/src/mcenatstateconnected.cpp Tue Feb 02 01:04:58 2010 +0200 @@ -0,0 +1,244 @@ +/* +* Copyright (c) 2005 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: +* +*/ + + + +#include "mcenatstateconnected.h" +#include "mcenatsipsession.h" +#include "mceactionset.h" +#include "mceclientserver.h" +#include "mcenatevents.h" +#include "mcenatactions.h" +#include "mcesrvlogs.h" + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::CMceNatStateConnected +// ----------------------------------------------------------------------------- +// +CMceNatStateConnected::CMceNatStateConnected() + { + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::~CMceNatStateConnected +// ----------------------------------------------------------------------------- +// +CMceNatStateConnected::~CMceNatStateConnected() + { + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::Accept +// ----------------------------------------------------------------------------- +// + +TBool CMceNatStateConnected::Accept( TMceNatStateTransitionEvent& aEvent ) + { + switch ( aEvent.NatCode() ) + { + case EMceNatUpdated: + { + return aEvent.Session().DoesMediaManagerNeedToNegotiate( NULL ); + } + case EMceNatHandleSIP: + { + return ( EMceInvite == aEvent.Code() || + EMcePrack == aEvent.Code() || + ( EMceAck == aEvent.Code() && + MceSip::HasContent( aEvent.Session().Request() ) ) ); + } + + case EMceNatUpdateSdp: + case EMceNatError: + case EMceNatICMPError: + { + return ETrue; + } + default: + { + return EFalse; + } + } + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::EntryL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::EntryL( TMceNatStateTransitionEvent& aEvent ) + { + MCESRV_DEBUG( "*** CMceNatStateConnected::EntryL, Entry" ); + + if ( EMceNatSync == aEvent.NatCode() || + EMceNatOffer == aEvent.NatCode() ) + { + // NOP + } + else + { + aEvent.NatActions().Continue(); + } + + MCESRV_DEBUG( "*** CMceNatStateConnected::EntryL, Exit" ); + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::ExitL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::ExitL( TMceNatStateTransitionEvent& aEvent ) + { + MCESRV_DEBUG( "*** CMceNatStateConnected::ExitL, Entry" ); + + switch ( aEvent.NatCode() ) + { + case EMceNatError: + case EMceNatICMPError: + { + ExitErrorL( aEvent ); + break; + } + case EMceNatUpdateSdp: + { + ExitUpdateSdpL( aEvent ); + break; + } + + case EMceNatHandleSIP: + { + if ( EMceInvite == aEvent.Code() ) + { + ExitHandleInviteL( aEvent ); + } + else + { + ExitDefaultL( aEvent ); + } + break; + } + + default: + { + ExitDefaultL( aEvent ); + break; + } + } + + MCESRV_DEBUG( "*** CMceNatStateConnected::ExitL, Exit" ); + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::ExitErrorL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::ExitErrorL( TMceNatStateTransitionEvent& aEvent ) + { + TMceStateIndex sipState = aEvent.Session().CurrentState().Id(); + + if (( aEvent.NatCode() == EMceNatICMPError && + KMceStateEstablished == sipState ) || + aEvent.NatCode() == EMceNatError ) + + { + aEvent.Session().Actions().ClientErrorOccured( aEvent.ParamStatus() ); + User::Leave( aEvent.ParamStatus() ); + } + + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::ExitUpdateSdpL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::ExitUpdateSdpL( + TMceNatStateTransitionEvent& /*aEvent*/ ) + { + // NAT has resulted in different transport address than initial O/A + // exchange suggested, hence re-INVITE must be sent. + + //CMceSipSession& session = aEvent.Session(); + //CSdpDocument* previous = session.Offer(); + //aEvent.Session().SetOffer( aEvent.Document() ); + //aEvent.NatActions().SetOffered( KMceNatOfferSdp ); + //aEvent.NatActions().SdpCleanup( previous, session.Offer() ); + //aEvent.Session().Actions().SendInviteL(); + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::ExitHandleInviteL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::ExitHandleInviteL( + TMceNatStateTransitionEvent& aEvent ) + { + if ( !MceSip::HasContent( aEvent.Session().Request() ) ) + { + // TBD: Restart of ICE + } + + // Not consumed, done by SIP state machine + aEvent.NatActions().Continue(); + } + +// ----------------------------------------------------------------------------- +// CMceNatStateConnected::ExitDefaultL +// ----------------------------------------------------------------------------- +// +void CMceNatStateConnected::ExitDefaultL( TMceNatStateTransitionEvent& aEvent ) + { + + TMceStateIndex sipState = aEvent.Session().CurrentState().Id(); + + if ( KMceStateServerEstablishing == sipState || + KMceStateUpdating == sipState || + ( aEvent.NatCode() == EMceNatUpdated && + KMceStateAcknowledgementRequired == sipState )) //i.e. DecodeL + { + // MT state loop + //Check if the invite package received includes corresponding SDP; + if ( !MceSip::HasContent( aEvent.Session().Request() ) ) + { + //no SDP, so certify to Pull mode Re-INVITE + aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateOffer ); + } + else + { + //including SDP, so certify to normal INVITE request + aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateAnswer ); + } + } + + else if ( aEvent.NatCode() == EMceNatUpdated && + ( KMceStateEstablished == sipState || + KMceStateConfirming == sipState || + KMceStateClientEstablishing == sipState ) || + ( aEvent.ParamStatus() == KMceReady ) && + ( aEvent.Code() == EMceProvisionalResponse ) ) + + //i.e. UpdateL + { + // MO state loop + aEvent.NatActions().StateChangedL( aEvent, KMceNatStateCreateOffer ); + } + + else + { + aEvent.NatActions().Continue(); + } + } + +// End of File