997 lines
28 KiB
C
997 lines
28 KiB
C
/***********************************************************************
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* *
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* Filename: openb.c *
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* Module: H245 Finite State Machine Subsystem *
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* *
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***********************************************************************
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* INTEL Corporation Proprietary Information *
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* *
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* This listing is supplied under the terms of a license agreement *
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* with INTEL Corporation and may not be copied nor disclosed except *
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* in accordance with the terms of that agreement. *
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* *
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* Copyright (c) 1996 Intel Corporation. All rights reserved. *
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***********************************************************************
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* *
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* $Workfile: openb.c $
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* $Revision: 1.5 $
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* $Modtime: 09 Dec 1996 18:05:30 $
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* $Log L:\mphone\h245\h245env\comm\h245_3\h245_fsm\vcs\src\openb.c_v $
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* *
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***********************************************************************/
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#include "precomp.h"
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#include "h245api.h"
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#include "h245com.h"
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#include "h245fsm.h"
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#include "openb.h"
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#include "pdu.x"
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// Open Bi-directional Logical Channel Out-going states
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#define OpenOutBReleased 0
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#define OpenOutBAwaitingEstablishment 1
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#define OpenOutBEstablished 2
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#define OpenOutBAwaitingRelease 3
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// Open Bi-directional Logical Channel In-coming states
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#define OpenInBReleased 0
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#define OpenInBAwaitingEstablishment 1
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#define OpenInBAwaitingConfirmation 2
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#define OpenInBEstablished 3
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extern unsigned int uT103;
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/***********************************************************************
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*
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* LOCAL FUNCTIONS
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*
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***********************************************************************/
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/*
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* NAME
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* T103OutExpiryF - Callback function called by the timer.
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* T103InExpiryF - Callback function called by the timer.
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*
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*
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* PARAMETERS
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* INPUT dwInst current instance of H245
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* INPUT id timer id
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* INPUT obj pointer to a FSM object
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*
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*
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* RETURN VALUE
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* OK
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*/
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int T103OutExpiryF(struct InstanceStruct *pInstance, DWORD_PTR dwTimerId, void *pObject)
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{
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return FsmTimerEvent(pInstance, dwTimerId, pObject, T103OutExpiry);
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} // T103OutExpiryF()
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int T103InExpiryF(struct InstanceStruct *pInstance, DWORD_PTR dwTimerId, void *pObject)
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{
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return FsmTimerEvent(pInstance, dwTimerId, pObject, T103InExpiry);
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} // T103InExpiryF()
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/***********************************************************************
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*
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* OUT-GOING FINITE STATE MACHINE FUNCTIONS
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*
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***********************************************************************/
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/*
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* NAME
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* establishReqBReleased - API request to open bidirectional channel in idle state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT establishReqBReleased(Object_t *pObject, PDU_t *pPdu)
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{
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBReleased);
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H245TRACE(pObject->dwInst, 2,
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"Sending open Bidirectional channel to ASN; Channel=%d",
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pObject->Key);
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/* Send Open Logical Channel to remote peer */
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lError = sendPDU(pObject->pInstance, pPdu);
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/* set timer T103 */
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pObject->State = OpenOutBAwaitingEstablishment;
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FsmStartTimer(pObject, T103OutExpiryF, uT103);
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return lError;
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}
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/*
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* NAME
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* openChannelAckBAwaitingE - received open bidirectional channel Ack in Awaiting Establishment state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT openChannelAckBAwaitingE(Object_t *pObject, PDU_t *pPdu)
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{
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PDU_t * pOut;
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingEstablishment);
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H245TRACE(pObject->dwInst, 2,
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"H245_CONF_NEEDRSP_OPEN with no error to API; Channel=%d",
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pObject->Key);
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/* reset timer T103 */
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FsmStopTimer(pObject);
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/* Send ESTABLISH.confirm to client */
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pObject->State = OpenOutBEstablished;
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H245FsmConfirm(pPdu,H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, FSM_OK);
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/* Send Open Logical Channel Confirm to remote peer */
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pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
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if (pOut == NULL)
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{
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H245TRACE(pObject->dwInst, 1,
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"openChannelAckBAwaitingE: memory allocation failed");
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return H245_ERROR_NOMEM;
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}
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pdu_ind_open_logical_channel_conf(pOut, (WORD)pObject->Key);
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lError = sendPDU(pObject->pInstance, pOut);
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MemFree(pOut);
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return lError;
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}
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/*
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* NAME
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* openChannelRejBAwaitingE - received open bidirectional channel reject in Awaiting Establishment state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT openChannelRejBAwaitingE(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingEstablishment);
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H245TRACE(pObject->dwInst, 2,
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"H245_CONF_NEEDRSP_OPEN with REJECT to API; Channel=%d",
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pObject->Key);
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/* reset timer T103 */
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FsmStopTimer(pObject);
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/* Send RELEASE.indication to client */
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pObject->State = OpenOutBReleased;
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H245FsmConfirm(pPdu, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, REJECT);
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return 0;
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}
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/*
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* NAME
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* releaseReqBOutAwaitingE - API request to close bidirectional channel in Awaiting Establishment state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT releaseReqBOutAwaitingE(Object_t *pObject, PDU_t *pPdu)
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{
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingEstablishment);
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H245TRACE(pObject->dwInst, 2,
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"Close (Bidirectional) to ASN; Channel=%d",
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pObject->Key);
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/* reset timer T103 */
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FsmStopTimer(pObject);
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/* Send Close Logical Channel to remote peer */
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lError = sendPDU(pObject->pInstance,pPdu);
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/* set timer T103 */
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pObject->State = OpenOutBAwaitingRelease;
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FsmStartTimer(pObject, T103OutExpiryF, uT103);
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return lError;
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}
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/*
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* NAME
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* t103ExpiryBAwaitingE - handle timeout for outstanding open bidirectional pdu
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT t103ExpiryBAwaitingE(Object_t *pObject, PDU_t *pPdu)
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{
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PDU_t * pOut;
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingEstablishment);
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ASSERT(pPdu == NULL);
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H245TRACE(pObject->dwInst, 2, "H245_CONF_NEEDRSP_OPEN with a timer expiry to API->Channel=%d", pObject->Key);
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/* Send ERROR.indication(D) to client */
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pObject->State = OpenOutBReleased;
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H245FsmConfirm(NULL, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, ERROR_D_TIMEOUT);
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/* Send Close Logical Channel (source:=lcse) to remote peer */
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pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
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if (pOut == NULL)
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{
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H245TRACE(pObject->dwInst, 1,
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"t103ExpiryBAwaitingE: memory allocation failed");
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return H245_ERROR_NOMEM;
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}
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pdu_req_close_logical_channel(pOut, (WORD)pObject->Key, 1);
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lError = sendPDU(pObject->pInstance, pOut);
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MemFree(pOut);
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#if defined(SDL_COMPLIANT)
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/* Send RELEASE.indication to client */
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H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
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#endif
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return lError;
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}
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/*
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* NAME
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* releaseReqBEstablished - API request to close channel in established state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT releaseReqBEstablished(Object_t *pObject, PDU_t *pPdu)
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{
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBEstablished);
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H245TRACE(pObject->dwInst, 2,
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"Send Close Bidirectional Channel to ASN; Channel=%d",
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pObject->Key);
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/* Send Close Logical Channel to remote peer */
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lError = sendPDU(pObject->pInstance,pPdu);
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/* set timer T103 */
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pObject->State = OpenOutBAwaitingRelease;
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FsmStartTimer(pObject, T103OutExpiryF, uT103);
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return lError;
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}
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/*
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* NAME
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* openChannelRejBEstablished - received open reject in established state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT openChannelRejBEstablished(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBEstablished);
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H245TRACE(pObject->dwInst, 2, "H245_CONF_NEEDRSP_OPEN with error B then with REJECT to API->Channel=%d", pObject->Key);
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pObject->State = OpenOutBReleased;
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#if defined(SDL_COMPLIANT)
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/* Send ERROR.indication(B) to client */
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H245FsmConfirm(pPdu, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, ERROR_B_INAPPROPRIATE);
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#endif
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/* Send RELEASE.indication (SOURCE:=B-LCSE) to client */
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H245FsmConfirm(pPdu, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, REJECT);
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return 0;
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}
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/*
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* NAME
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* closeChannelAckBEstablished - received close ack in established state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT closeChannelAckBEstablished(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBEstablished);
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H245TRACE(pObject->dwInst, 2,
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"H245_CONF_NEEDRSP_OPEN with error C then with REJECT to API; Channel=%d",
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pObject->Key);
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pObject->State = OpenOutBReleased;
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#if defined(SDL_COMPLIANT)
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/* Send ERROR.indication(C) to client */
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H245FsmConfirm(pPdu, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, ERROR_C_INAPPROPRIATE);
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#endif
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/* Send RELEASE.indication to client */
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H245FsmConfirm(pPdu, H245_CONF_NEEDRSP_OPEN, pObject->pInstance, pObject->dwTransId, REJECT);
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return 0;
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}
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/*
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* NAME
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* closeChannelAckAwaitingR - received close ack in Awaiting Release state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT closeChannelAckAwaitingR(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingRelease);
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H245TRACE(pObject->dwInst, 2,
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"H245_CONF_CLOSE with no error to API; Channel=%d",
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pObject->Key);
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/* reset timer T103 */
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FsmStopTimer(pObject);
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/* Send RELEASE.confirm to client */
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pObject->State = OpenOutBReleased;
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H245FsmConfirm(pPdu, H245_CONF_CLOSE, pObject->pInstance, pObject->dwTransId, FSM_OK);
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return 0;
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}
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/*
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* NAME
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* openChannelRejBAwaitingR - received open reject in awaiting release state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT openChannelRejBAwaitingR(Object_t *pObject, PDU_t *pPdu)
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{
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return closeChannelAckAwaitingR(pObject, pPdu);
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}
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/*
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* NAME
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* t103ExpiryBAwaitingR - handle timer expiry in awaiting release
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT t103ExpiryBAwaitingR(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingRelease);
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ASSERT(pPdu == NULL);
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H245TRACE(pObject->dwInst, 2,
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"H245_CONF_CLOSE with timer expiry to API; Channel=%d",
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pObject->Key);
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/* Send ERROR.indication(D) to client */
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pObject->State = OpenOutBReleased;
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H245FsmConfirm(NULL, H245_CONF_CLOSE, pObject->pInstance, pObject->dwTransId, ERROR_D_TIMEOUT);
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#if defined(SDL_COMPLIANT)
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/* Send RELEASE.confirm to client */
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#endif
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return 0;
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}
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/*
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* NAME
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* establishReqAwaitingR - API open request in awaiting release state
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT establishReqAwaitingR(Object_t *pObject, PDU_t *pPdu)
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{
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_OUT);
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ASSERT(pObject->State == OpenOutBAwaitingRelease);
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H245TRACE(pObject->dwInst, 2,
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"Send a (re) Open Bidirectional Channel to ASN; Channel=%d",
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pObject->Key);
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/* reset timer T103 */
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FsmStopTimer(pObject);
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/* Send Open Logical Channel to remote peer */
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lError = sendPDU(pObject->pInstance, pPdu);
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/* set timer T103 */
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pObject->State = OpenOutBAwaitingEstablishment;
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FsmStartTimer(pObject, T103OutExpiryF, uT103);
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return lError;
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}
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/***********************************************************************
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*
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* IN-COMING FINITE STATE MACHINE FUNCTIONS
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*
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***********************************************************************/
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/*
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* NAME
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* openChannelBReleased - open channel received in idle state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT openChannelBReleased(Object_t *pObject, PDU_t *pPdu)
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{
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ASSERT(pObject->Entity == BLCSE_IN);
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ASSERT(pObject->State == OpenInBReleased);
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H245TRACE(pObject->dwInst, 2,
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"H245_IND_OPEN with no error to API; Channel=%d",
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pObject->Key);
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/* Send ESTABLISH.indication to client */
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pObject->State = OpenInBAwaitingEstablishment;
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H245FsmIndication(pPdu, H245_IND_OPEN, pObject->pInstance, 0, FSM_OK);
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return 0;
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}
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/*
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* NAME
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* closeChannelBReleased - close channel received in idle state
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*
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*
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* PARAMETERS
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* INPUT pObject pointer to a State Entity
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*
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* RETURN VALUE
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* error return codes defined in h245com.h
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*/
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HRESULT closeChannelBReleased (Object_t *pObject, PDU_t *pPdu)
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{
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PDU_t * pOut;
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HRESULT lError;
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ASSERT(pObject->Entity == BLCSE_IN);
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ASSERT(pObject->State == OpenInBReleased);
|
||
ASSERT(pObject->Key == pPdu->u.MltmdSystmCntrlMssg_rqst.u.closeLogicalChannel.forwardLogicalChannelNumber);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"Close Channel (Bidirectional) received while in Released state; Channel=%d",
|
||
pObject->Key);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"Send Close Ack (Bidirectional) to ASN; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"closeChannelBReleased: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
return lError;
|
||
}
|
||
|
||
/*
|
||
* NAME
|
||
* establishResBAwaitingE - response to an open request with an ack
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT establishResBAwaitingE (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingEstablishment);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"Send OpenAck (Bidirectional) to ASN module; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* Send Open Logical Channel Ack to remote peer */
|
||
lError = sendPDU(pObject->pInstance, pPdu);
|
||
|
||
/* set timer T103 */
|
||
pObject->State = OpenInBAwaitingConfirmation;
|
||
FsmStartTimer(pObject, T103InExpiryF, uT103);
|
||
|
||
return lError;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* releaseReqBInAwaitingE - response to an open request with a reject
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT releaseReqBInAwaitingE (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingEstablishment);
|
||
H245TRACE(pObject->dwInst, 2, "Send OpenReject (Bidirectional) to SR module; Channel=%d", pObject->Key);
|
||
|
||
/* Send Open Logical Channel Reject to remote peer */
|
||
pObject->State = OpenInBReleased;
|
||
return sendPDU(pObject->pInstance, pPdu);
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* closeChannelBAwaitingE - received close channel in Awaiting establishment state
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT closeChannelBAwaitingE(Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
PDU_t * pOut;
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingEstablishment);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"H245_IND_CLOSE with no error to API; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"closeChannelBAwaitingE: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
/* Send RELEASE.indication to client */
|
||
pObject->State = OpenInBReleased;
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return lError;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* openChannelBAwaitingE - overriding open request
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT openChannelBAwaitingE(Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingEstablishment);
|
||
H245TRACE(pObject->dwInst, 2, "Overriding H245_IND_OPEN to API; Channel=%d", pObject->Key);
|
||
|
||
#if defined(SDL_COMPLIANT)
|
||
/* Send RELEASE.indication (SOURCE:=USER) to client */
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
#endif
|
||
|
||
/* Send ESTABLISH.indication to client */
|
||
H245FsmIndication(pPdu, H245_IND_OPEN, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* openChannelConfirmBAwaitingE - received open confirm while awaiting establishment
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT openChannelConfirmBAwaitingE (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
PDU_t * pOut;
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingEstablishment);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"H245_IND_OPEN_CONF with error F to API; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* Send ERROR.indication(F) to client */
|
||
pObject->State = OpenInBReleased;
|
||
H245FsmIndication(pPdu, H245_IND_OPEN_CONF, pObject->pInstance, 0, ERROR_E_INAPPROPRIATE);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"openChannelConfirmBAwaitingE: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
#if defined(SDL_COMPLIANT)
|
||
/* Send RELEASE.indication (SOURCE:=B-LCSE) to client */
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
#endif
|
||
|
||
return lError;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* t103ExpiryBAwaitingC - timer expired waiting for open confirm
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT t103ExpiryBAwaitingC(Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
PDU_t * pOut;
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingConfirmation);
|
||
ASSERT(pPdu == NULL);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"Timer T103 expired while waiting for OpenConfirm for OpenAck");
|
||
|
||
/* Send ERROR.indication(G) to client */
|
||
pObject->State = OpenInBReleased;
|
||
H245FsmIndication(NULL, H245_IND_OPEN_CONF, pObject->pInstance, pObject->dwTransId, ERROR_F_TIMEOUT);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"t103ExpiryBAwaitingC: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
#if defined(SDL_COMPLIANT)
|
||
/* Send RELEASE.indication to client */
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
#endif
|
||
|
||
return lError;
|
||
}
|
||
|
||
/*
|
||
* NAME
|
||
* openChannelConfirmBAwaitingC - received open confirm while awaiting confirmation
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT openChannelConfirmBAwaitingC (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingConfirmation);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"H245_IND_OPEN_CONF with no errors; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* reset timer T103 */
|
||
FsmStopTimer(pObject);
|
||
|
||
/* Send ESTABLISH.confirm to client */
|
||
pObject->State = OpenInBEstablished;
|
||
H245FsmIndication(pPdu, H245_IND_OPEN_CONF, pObject->pInstance, pObject->dwTransId, FSM_OK);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* closeChannelBAwaitingC - received close channel while awaiting confirmation
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT closeChannelBAwaitingC (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
PDU_t * pOut;
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingConfirmation);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"H245_IND_CLOSE with no error; Channel=%d",
|
||
pObject->Key);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"Send Close Ack (Bidirectional) to ASN; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* reset timer T103 */
|
||
FsmStopTimer(pObject);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"closeChannelBAwaitingC: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
/* Send RELEASE.indication to client */
|
||
pObject->State = OpenInBReleased;
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return lError;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* openChannelBAwaitingC - received open channel while awaiting confirmation
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT openChannelBAwaitingC (Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBAwaitingConfirmation);
|
||
H245TRACE(pObject->dwInst, 2, "Overriding H245_IND_OPEN to API; Channel=%d", pObject->Key);
|
||
|
||
/* reset timer T103 */
|
||
FsmStopTimer(pObject);
|
||
|
||
pObject->State = OpenInBAwaitingEstablishment;
|
||
|
||
#if defined(SDL_COMPLIANT)
|
||
/* Send RELEASE.indication (SOURCE:=USER) to client */
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
#endif
|
||
|
||
/* Send ESTABLISH.indication to client */
|
||
H245FsmIndication(pPdu, H245_IND_OPEN, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* closeChannelBEstablished - received close channel while in established state
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT closeChannelBEstablished(Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
PDU_t * pOut;
|
||
HRESULT lError;
|
||
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBEstablished);
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"H245_IND_CLOSE with no error up to API; Channel=%d",
|
||
pObject->Key);
|
||
|
||
/* Send Close Logical Channel Ack to remote peer */
|
||
pOut = (PDU_t *) MemAlloc(sizeof(PDU_t ));
|
||
if (pOut == NULL)
|
||
{
|
||
H245TRACE(pObject->dwInst, 2,
|
||
"closeChannelBEstablished: memory allocation failed");
|
||
return H245_ERROR_NOMEM;
|
||
}
|
||
pdu_rsp_close_logical_channel_ack(pOut, (WORD)pObject->Key);
|
||
lError = sendPDU(pObject->pInstance, pOut);
|
||
MemFree(pOut);
|
||
|
||
/* Send RELEASE.indication to client */
|
||
pObject->State = OpenInBReleased;
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return lError;
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* NAME
|
||
* openChannelBEstablished - received open channel while in established state
|
||
*
|
||
*
|
||
* PARAMETERS
|
||
* INPUT pObject pointer to a State Entity
|
||
*
|
||
* RETURN VALUE
|
||
* error return codes defined in h245com.h
|
||
*/
|
||
|
||
HRESULT openChannelBEstablished(Object_t *pObject, PDU_t *pPdu)
|
||
{
|
||
ASSERT(pObject->Entity == BLCSE_IN);
|
||
ASSERT(pObject->State == OpenInBEstablished);
|
||
H245TRACE(pObject->dwInst, 2, "Overriding H245_IND_OPEN to API; Channel=%d", pObject->Key);
|
||
|
||
pObject->State = OpenInBAwaitingEstablishment;
|
||
|
||
#if defined(SDL_COMPLIANT)
|
||
/* Send RELEASE.indication to client */
|
||
H245FsmIndication(pPdu, H245_IND_CLOSE, pObject->pInstance, 0, FSM_OK);
|
||
#endif
|
||
|
||
/* Send ESTABLISH.indication to client*/
|
||
H245FsmIndication(pPdu, H245_IND_OPEN, pObject->pInstance, 0, FSM_OK);
|
||
|
||
return 0;
|
||
}
|
||
|