533 lines
22 KiB
C
533 lines
22 KiB
C
/***********************************************************************
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* *
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* Filename: h245fsm.h *
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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: H245FSM.H $
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* $Revision: 1.6 $
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* $Modtime: 09 Dec 1996 13:40:40 $
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* $Log: S:/STURGEON/SRC/H245/INCLUDE/VCS/H245FSM.H_v $
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*
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* Rev 1.6 09 Dec 1996 13:40:52 EHOWARDX
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* Updated copyright notice.
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*
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* Rev 1.5 29 Jul 1996 16:57:14 EHOWARDX
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* Added H.223 Annex A Reconfiguration events.
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*
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* Rev 1.4 01 Jul 1996 22:08:32 EHOWARDX
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*
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* Updated stateless events.
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*
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* Rev 1.3 30 May 1996 23:38:20 EHOWARDX
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* Cleanup.
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*
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* Rev 1.2 29 May 1996 15:21:34 EHOWARDX
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* Change to use HRESULT.
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*
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* Rev 1.1 28 May 1996 14:10:04 EHOWARDX
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* Tel Aviv update.
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*
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* Rev 1.0 09 May 1996 21:04:50 EHOWARDX
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* Initial revision.
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*
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* Rev 1.12.1.3 09 May 1996 19:43:58 EHOWARDX
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* Eliminated two events for B-LCSE gratuitous state and changed
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* 2 macros.
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*
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* Rev 1.12.1.2 15 Apr 1996 10:43:34 EHOWARDX
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* Update.
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*
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* Rev 1.12.1.1 10 Apr 1996 21:06:10 EHOWARDX
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* Added 5 new state entitys.
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*
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* Rev 1.12.1.0 05 Apr 1996 11:47:14 EHOWARDX
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* Branched.
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* *
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***********************************************************************/
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#ifndef H245FSM_H
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#define H245FSM_H
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#include <stdlib.h>
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#include "fsmexpor.h"
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#include "sr_api.h"
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#define MAXSTATES 4
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#define SUCCESS 0
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#define FAIL -1
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#define BAD (Output_t) -1
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#ifdef IGNORE
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#undef IGNORE
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#endif
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#define IGNORE (Output_t) NUM_OUTPUTS
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typedef MltmdSystmCntrlMssg PDU_t;
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// Signalling Entity definitions
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typedef unsigned char Entity_t;
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// Per-channel Signalling Entities
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#define LCSE_OUT (Entity_t) 0 // Uni-directional Logical Channel signalling Signalling Entity - Out-going
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#define LCSE_IN (Entity_t) 1 // Uni-directional Logical Channel signalling Signalling Entity - In-coming
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#define BLCSE_OUT (Entity_t) 2 // Bi-directional Logical Channel signalling Signalling Entity - Out-going
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#define BLCSE_IN (Entity_t) 3 // Bi-directional Logical Channel signalling Signalling Entity - In-coming
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#define CLCSE_OUT (Entity_t) 4 // Close Logical Channel signalling Signalling Entity - Out-going
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#define CLCSE_IN (Entity_t) 5 // Close Logical Channel signalling Signalling Entity - In-coming
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// Per H.245 Instance Signalling Entities
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#define CESE_OUT (Entity_t) 6 // Capability Exchange Signalling Entity - Out-going
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#define CESE_IN (Entity_t) 7 // Capability Exchange Signalling Entity - In-coming
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#define MTSE_OUT (Entity_t) 8 // Multiplex Table Signalling Entity - Out-going
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#define MTSE_IN (Entity_t) 9 // Multiplex Table Signalling Entity - In-coming
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#define RMESE_OUT (Entity_t)10 // Request Multiplex Entry Signalling Entity - Out-going
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#define RMESE_IN (Entity_t)11 // Request Multiplex Entry Signalling Entity - In-coming
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#define MRSE_OUT (Entity_t)12 // Mode Request Signalling Entity - Out-going
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#define MRSE_IN (Entity_t)13 // Mode Request Signalling Entity - In-coming
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#define MLSE_OUT (Entity_t)14 // Maintenance Loop Signalling Entity - Out-going
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#define MLSE_IN (Entity_t)15 // Maintenance Loop Signalling Entity - In-coming
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#define MSDSE (Entity_t)16 // Master Slave Determination Signalling Entity
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#define RTDSE (Entity_t)17 // Round Trip Delay Signalling Entity
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#define STATELESS (Entity_t)18 // No state machine associated with PDU
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#define NUM_ENTITYS 19
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// Event definitions
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typedef unsigned int Event_t;
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// Out-going Uni-directional Logical Channel (LCSE_OUT) events
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#define ReqUEstablish (Event_t) 0
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#define OpenUChAckPDU (Event_t) 1
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#define OpenUChRejectPDU (Event_t) 2
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#define CloseUChAckPDU (Event_t) 3
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#define ReqURelease (Event_t) 4
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#define T103Expiry (Event_t) 5
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// In-coming Uni-directional Logical Channel (LCSE_IN) events
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#define OpenUChPDU (Event_t) 6
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#define CloseUChPDU (Event_t) 7
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#define ResponseUEstablish (Event_t) 8
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#define EstablishUReject (Event_t) 9
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// Out-going Bi-directional Logical Channel (BLCSE_OUT) events
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#define ReqBEstablish (Event_t) 10
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#define OpenBChAckPDU (Event_t) 11
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#define OpenBChRejectPDU (Event_t) 12
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#define CloseBChAckPDU (Event_t) 13
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#define ReqClsBLCSE (Event_t) 14
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#define RspConfirmBLCSE (Event_t) 15
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#define T103OutExpiry (Event_t) 16
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// In-coming Bi-directional Logical Channel (BLCSE_IN) events
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#define OpenBChPDU (Event_t) 17
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#define CloseBChPDU (Event_t) 18
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#define ResponseBEstablish (Event_t) 19
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#define OpenBChConfirmPDU (Event_t) 20
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#define OpenRejectBLCSE (Event_t) 21
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#define T103InExpiry (Event_t) 22
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// Out-going Request Close Logical Channel (CLCSE_OUT) events
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#define ReqClose (Event_t) 23
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#define ReqChCloseAckPDU (Event_t) 24
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#define ReqChCloseRejectPDU (Event_t) 25
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#define T108Expiry (Event_t) 26
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// In-coming Request Close Logical Channel (CLCSE_IN) events
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#define ReqChClosePDU (Event_t) 27
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#define ReqChCloseReleasePDU (Event_t) 28
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#define CLCSE_CLOSE_response (Event_t) 29
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#define CLCSE_REJECT_request (Event_t) 30
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// Out-going Terminal Capablity Exchange (CESE_OUT) events
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#define TransferCapRequest (Event_t) 31
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#define TermCapSetAckPDU (Event_t) 32
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#define TermCapSetRejectPDU (Event_t) 33
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#define T101Expiry (Event_t) 34
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// In-coming Terminal Capablity Exchange (CESE_IN) events
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#define TermCapSetPDU (Event_t) 35
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#define TermCapSetReleasePDU (Event_t) 36
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#define CESE_TRANSFER_response (Event_t) 37
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#define CESE_REJECT_request (Event_t) 38
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// Out-going Multiplex Table (MTSE_OUT) events
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#define MTSE_TRANSFER_request (Event_t) 39
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#define MultiplexEntrySendAckPDU (Event_t) 40
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#define MultiplexEntrySendRejectPDU (Event_t) 41
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#define T104Expiry (Event_t) 42
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// In-coming Multiplex Table (MTSE_IN) events
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#define MultiplexEntrySendPDU (Event_t) 43
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#define MultiplexEntrySendReleasePDU (Event_t) 44
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#define MTSE_TRANSFER_response (Event_t) 45
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#define MTSE_REJECT_request (Event_t) 46
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// Out-going Request Multiplex Entry (RMESE_OUT) events
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#define RMESE_SEND_request (Event_t) 47
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#define RequestMultiplexEntryAckPDU (Event_t) 48
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#define RequestMultiplexEntryRejectPDU (Event_t) 49
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#define T107Expiry (Event_t) 50
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// In-coming Request Multiplex Entry (RMESE_IN) events
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#define RequestMultiplexEntryPDU (Event_t) 51
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#define RequestMultiplexEntryReleasePDU (Event_t) 52
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#define RMESE_SEND_response (Event_t) 53
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#define RMESE_REJECT_request (Event_t) 54
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// Out-going Mode Request (MRSE_OUT) events
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#define MRSE_TRANSFER_request (Event_t) 55
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#define RequestModeAckPDU (Event_t) 56
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#define RequestModeRejectPDU (Event_t) 57
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#define T109Expiry (Event_t) 58
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// In-coming Mode Request (MRSE_IN) events
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#define RequestModePDU (Event_t) 59
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#define RequestModeReleasePDU (Event_t) 60
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#define MRSE_TRANSFER_response (Event_t) 61
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#define MRSE_REJECT_request (Event_t) 62
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// Out-going Maintenance Loop (MLSE_OUT) events
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#define MLSE_LOOP_request (Event_t) 63
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#define MLSE_OUT_RELEASE_request (Event_t) 64
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#define MaintenanceLoopAckPDU (Event_t) 65
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#define MaintenanceLoopRejectPDU (Event_t) 66
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#define T102Expiry (Event_t) 67
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// In-coming Maintenance Loop (MLSE_IN) events
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#define MaintenanceLoopRequestPDU (Event_t) 68
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#define MaintenanceLoopOffCommandPDU (Event_t) 69
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#define MLSE_LOOP_response (Event_t) 70
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#define MLSE_IN_RELEASE_request (Event_t) 71
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// Master Slave Determination (MSDSE) events
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#define MSDetReq (Event_t) 72
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#define MSDetPDU (Event_t) 73
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#define MSDetAckPDU (Event_t) 74
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#define MSDetRejectPDU (Event_t) 75
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#define MSDetReleasePDU (Event_t) 76
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#define T106Expiry (Event_t) 77
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// Round Trip Delay Delay (RTDSE) events
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#define RTDSE_TRANSFER_request (Event_t) 78
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#define RoundTripDelayRequestPDU (Event_t) 79
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#define RoundTripDelayResponsePDU (Event_t) 80
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#define T105Expiry (Event_t) 81
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#define NUM_STATE_EVENTS 82
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// Events with no associated state entity
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#define NonStandardRequestPDU (Event_t) 82
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#define NonStandardResponsePDU (Event_t) 83
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#define NonStandardCommandPDU (Event_t) 84
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#define NonStandardIndicationPDU (Event_t) 85
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#define MiscellaneousCommandPDU (Event_t) 86
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#define MiscellaneousIndicationPDU (Event_t) 87
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#define CommunicationModeRequestPDU (Event_t) 88
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#define CommunicationModeResponsePDU (Event_t) 89
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#define CommunicationModeCommandPDU (Event_t) 90
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#define ConferenceRequestPDU (Event_t) 91
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#define ConferenceResponsePDU (Event_t) 92
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#define ConferenceCommandPDU (Event_t) 93
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#define ConferenceIndicationPDU (Event_t) 94
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#define SendTerminalCapabilitySetPDU (Event_t) 95
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#define EncryptionCommandPDU (Event_t) 96
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#define FlowControlCommandPDU (Event_t) 97
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#define EndSessionCommandPDU (Event_t) 98
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#define FunctionNotUnderstoodPDU (Event_t) 99
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#define JitterIndicationPDU (Event_t)100
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#define H223SkewIndicationPDU (Event_t)101
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#define NewATMVCIndicationPDU (Event_t)102
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#define UserInputIndicationPDU (Event_t)103
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#define H2250MaximumSkewIndicationPDU (Event_t)104
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#define MCLocationIndicationPDU (Event_t)105
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#define VendorIdentificationPDU (Event_t) 106
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#define FunctionNotSupportedPDU (Event_t) 107
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#define H223ReconfigPDU (Event_t)108
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#define H223ReconfigAckPDU (Event_t)109
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#define H223ReconfigRejectPDU (Event_t)110
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#define NUM_EVENTS 111
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// Output function definitions
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typedef unsigned char Output_t;
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// Out-going Open Uni-directional Logical Channel (LCSE_OUT) state functions
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#define EstablishReleased (Output_t) 0
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#define OpenAckAwaitingE (Output_t) 1
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#define OpenRejAwaitingE (Output_t) 2
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#define ReleaseAwaitingE (Output_t) 3
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#define T103AwaitingE (Output_t) 4
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#define ReleaseEstablished (Output_t) 5
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#define OpenRejEstablished (Output_t) 6
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#define CloseAckEstablished (Output_t) 7
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#define CloseAckAwaitingR (Output_t) 8
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#define OpenRejAwaitingR (Output_t) 9
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#define T103AwaitingR (Output_t) 10
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#define EstablishAwaitingR (Output_t) 11
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// In-coming Open Uni-directional Logical Channel (LCSE_IN) state functions
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#define OpenReleased (Output_t) 12
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#define CloseReleased (Output_t) 13
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#define ResponseAwaiting (Output_t) 14
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#define ReleaseAwaiting (Output_t) 15
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#define CloseAwaiting (Output_t) 16
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#define OpenAwaiting (Output_t) 17
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#define CloseEstablished (Output_t) 18
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#define OpenEstablished (Output_t) 19
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// Out-going Open Bi-directional Logical Channel (BLCSE_OUT) state functions
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#define EstablishReqBReleased (Output_t) 20
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#define OpenChannelAckBAwaitingE (Output_t) 21
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#define OpenChannelRejBAwaitingE (Output_t) 22
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#define ReleaseReqBOutAwaitingE (Output_t) 23
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#define T103ExpiryBAwaitingE (Output_t) 24
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#define ReleaseReqBEstablished (Output_t) 25
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#define OpenChannelRejBEstablished (Output_t) 26
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#define CloseChannelAckBEstablished (Output_t) 27
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#define CloseChannelAckAwaitingR (Output_t) 28
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#define OpenChannelRejBAwaitingR (Output_t) 29
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#define T103ExpiryBAwaitingR (Output_t) 30
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#define EstablishReqAwaitingR (Output_t) 31
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// In-coming Open Bi-directional Logical Channel (BLCSE_IN) state functions
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#define OpenChannelBReleased (Output_t) 32
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#define CloseChannelBReleased (Output_t) 33
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#define EstablishResBAwaitingE (Output_t) 34
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#define ReleaseReqBInAwaitingE (Output_t) 35
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#define CloseChannelBAwaitingE (Output_t) 36
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#define OpenChannelBAwaitingE (Output_t) 37
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#define OpenChannelConfirmBAwaitingE (Output_t) 38
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#define T103ExpiryBAwaitingC (Output_t) 39
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#define OpenChannelConfirmBAwaitingC (Output_t) 40
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#define CloseChannelBAwaitingC (Output_t) 41
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#define OpenChannelBAwaitingC (Output_t) 42
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#define CloseChannelBEstablished (Output_t) 43
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#define OpenChannelBEstablished (Output_t) 44
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// Out-going Request Close Logical Channel (CLCSE_OUT) state functions
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#define CloseRequestIdle (Output_t) 45
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#define RequestCloseAckAwaitingR (Output_t) 46
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#define RequestCloseRejAwaitingR (Output_t) 47
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#define T108ExpiryAwaitingR (Output_t) 48
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// In-coming Request Close Logical Channel (CLCSE_IN) state functions
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#define RequestCloseIdle (Output_t) 49
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#define CloseResponseAwaitingR (Output_t) 50
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#define RejectRequestAwaitingR (Output_t) 51
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#define RequestCloseReleaseAwaitingR (Output_t) 52
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#define RequestCloseAwaitingR (Output_t) 53
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// Out-going Terminal Capability Exchange (CESE_OUT) state functions
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#define RequestCapIdle (Output_t) 54
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#define TermCapAckAwaiting (Output_t) 55
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#define TermCapRejAwaiting (Output_t) 56
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#define T101ExpiryAwaiting (Output_t) 57
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// In-coming Terminal Capability Exchange (CESE_IN) state functions
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#define TermCapSetIdle (Output_t) 58
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#define ResponseCapAwaiting (Output_t) 59
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#define RejectCapAwaiting (Output_t) 60
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#define TermCapReleaseAwaiting (Output_t) 61
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#define TermCapSetAwaiting (Output_t) 62
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// Out-going Multiplex Table (MTSE_OUT) state functions
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#define MTSE0_TRANSFER_request (Output_t) 63
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#define MTSE1_TRANSFER_request (Output_t) 64
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#define MTSE1_MultiplexEntrySendAck (Output_t) 65
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#define MTSE1_MultiplexEntrySendRej (Output_t) 66
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#define MTSE1_T104Expiry (Output_t) 67
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// In-coming Multiplex Table (MTSE_IN) state functions
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#define MTSE0_MultiplexEntrySend (Output_t) 68
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#define MTSE1_MultiplexEntrySend (Output_t) 69
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#define MTSE1_MultiplexEntrySendRelease (Output_t) 70
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#define MTSE1_TRANSFER_response (Output_t) 71
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#define MTSE1_REJECT_request (Output_t) 72
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// Out-going Request Multiplex Entry (RMESE_OUT) state functions
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#define RMESE0_SEND_request (Output_t) 73
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#define RMESE1_SEND_request (Output_t) 74
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#define RMESE1_RequestMuxEntryAck (Output_t) 75
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#define RMESE1_RequestMuxEntryRej (Output_t) 76
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#define RMESE1_T107Expiry (Output_t) 77
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// In-coming Request Multiplex Entry (RMESE_IN) state functions
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#define RMESE0_RequestMuxEntry (Output_t) 78
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#define RMESE1_RequestMuxEntry (Output_t) 79
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#define RMESE1_RequestMuxEntryRelease (Output_t) 80
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#define RMESE1_SEND_response (Output_t) 81
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#define RMESE1_REJECT_request (Output_t) 82
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// Out-going Request Mode (MRSE_OUT) state functions
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#define MRSE0_TRANSFER_request (Output_t) 83
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#define MRSE1_TRANSFER_request (Output_t) 84
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#define MRSE1_RequestModeAck (Output_t) 85
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#define MRSE1_RequestModeRej (Output_t) 86
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#define MRSE1_T109Expiry (Output_t) 87
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// In-coming Request Mode (MRSE_OUT) state functions
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#define MRSE0_RequestMode (Output_t) 88
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#define MRSE1_RequestMode (Output_t) 89
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#define MRSE1_RequestModeRelease (Output_t) 90
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#define MRSE1_TRANSFER_response (Output_t) 91
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#define MRSE1_REJECT_request (Output_t) 92
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// Out-going Request Mode (MLSE_OUT) state functions
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#define MLSE0_LOOP_request (Output_t) 93
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#define MLSE1_MaintenanceLoopAck (Output_t) 94
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#define MLSE1_MaintenanceLoopRej (Output_t) 95
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#define MLSE1_OUT_RELEASE_request (Output_t) 96
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#define MLSE1_T102Expiry (Output_t) 97
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#define MLSE2_MaintenanceLoopRej (Output_t) 98
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#define MLSE2_OUT_RELEASE_request (Output_t) 99
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// In-coming Request Mode (MLSE_IN) state functions
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#define MLSE0_MaintenanceLoopRequest (Output_t)100
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#define MLSE1_MaintenanceLoopRequest (Output_t)101
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#define MLSE1_MaintenanceLoopOffCommand (Output_t)102
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#define MLSE1_LOOP_response (Output_t)103
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#define MLSE1_IN_RELEASE_request (Output_t)104
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#define MLSE2_MaintenanceLoopRequest (Output_t)105
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#define MLSE2_MaintenanceLoopOffCommand (Output_t)106
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// Master Slave Determination (MSDSE) state functions
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#define DetRequestIdle (Output_t)107
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#define MSDetIdle (Output_t)108
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#define MSDetAckOutgoing (Output_t)109
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#define MSDetOutgoing (Output_t)110
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#define MSDetRejOutgoing (Output_t)111
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#define MSDetReleaseOutgoing (Output_t)112
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#define T106ExpiryOutgoing (Output_t)113
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#define MSDetAckIncoming (Output_t)114
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#define MSDetIncoming (Output_t)115
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#define MSDetRejIncoming (Output_t)116
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#define MSDetReleaseIncoming (Output_t)117
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#define T106ExpiryIncoming (Output_t)118
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// Round Trip Delay (RTDSE) state functions
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#define RTDSE0_TRANSFER_request (Output_t)119
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#define RTDSE0_RoundTripDelayRequest (Output_t)120
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#define RTDSE1_TRANSFER_request (Output_t)121
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#define RTDSE1_RoundTripDelayRequest (Output_t)122
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#define RTDSE1_RoundTripDelayResponse (Output_t)123
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#define RTDSE1_T105Expiry (Output_t)124
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#define NUM_OUTPUTS 125
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|
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// State definitions
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typedef unsigned char State_t;
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|
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|
|
|
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// Lookup Key definition
|
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typedef unsigned long Key_t;
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|
|
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|
|
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typedef enum
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{
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INDETERMINATE,
|
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MASTER,
|
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SLAVE
|
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} MS_Status_t;
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|
|
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typedef struct Object_tag
|
|
{
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struct Object_tag *pNext; // Linked list pointer
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struct InstanceStruct *pInstance; // H.245 instance structure pointer
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DWORD dwInst; // H.245 instance identifier
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unsigned int uNestLevel; // StateMachine recursive calls
|
|
DWORD_PTR dwTransId; // Transaction Id from API
|
|
DWORD_PTR dwTimerId; // Associated timer id
|
|
Key_t Key; // Lookup key, e.g. channel number
|
|
Entity_t Entity; // State Entity type, e.g. LCSE_OUT
|
|
State_t State; // Current Entity state
|
|
unsigned char byInSequence; // In-coming sequence number
|
|
union
|
|
{
|
|
struct
|
|
{
|
|
unsigned short wLoopType;
|
|
} mlse;
|
|
struct
|
|
{
|
|
unsigned int sv_SDNUM;
|
|
unsigned int sv_NCOUNT;
|
|
} msdse;
|
|
MultiplexEntrySendRelease mtse;
|
|
RequestMultiplexEntryRelease rmese;
|
|
} u; // Entity-specific data
|
|
} Object_t;
|
|
|
|
|
|
|
|
/* an instance will carry a table of object pointers */
|
|
/* to be allocated in fsminit by calloc. */
|
|
/* Each dwInst passed from API or SRP should invoke the */
|
|
/* appropriate instance that contain the object table of */
|
|
/* the protocol entities for this H.245 instance */
|
|
|
|
typedef struct Fsm_Struct_tag
|
|
{
|
|
Object_t * Object_tbl[NUM_ENTITYS];// H.245 Signalling Entities
|
|
DWORD dwInst; // H.245 Instance Identifier
|
|
MS_Status_t sv_STATUS; // MSDSE Status
|
|
unsigned char sv_TT; // MSDSE Terminal Type
|
|
unsigned char byCeseOutSequence; // CESE_OUT sequence number
|
|
unsigned char byMtseOutSequence; // MTSE_OUT sequence number
|
|
unsigned char byMrseOutSequence; // MRSE_OUT sequence number
|
|
unsigned char byRtdseSequence; // RTDSE sequence number
|
|
} Fsm_Struct_t;
|
|
|
|
|
|
|
|
/* FSM function prototypes */
|
|
|
|
HRESULT
|
|
PduParseOutgoing(struct InstanceStruct *pInstance, PDU_t *pPdu,
|
|
Entity_t *pEntity, Event_t *pEvent, Key_t *pKey, int *pbCreate);
|
|
|
|
HRESULT
|
|
PduParseIncoming(struct InstanceStruct *pInstance, PDU_t *pPdu,
|
|
Entity_t *pEntity, Event_t *pEvent, Key_t *pKey, int *pbCreate);
|
|
|
|
int
|
|
ObjectDestroy (Object_t *pObject);
|
|
|
|
Object_t *
|
|
ObjectFind(struct InstanceStruct *pInstance, Entity_t Entity, Key_t Key);
|
|
|
|
HRESULT
|
|
StateMachine (Object_t *pObject, PDU_t *pPdu, Event_t Event);
|
|
|
|
HRESULT
|
|
FsmTimerEvent(struct InstanceStruct *pInstance, DWORD_PTR dwTimerId, Object_t *pObject, Event_t Event);
|
|
|
|
#define FsmStartTimer(pObject,pfnCallback,uTicks) \
|
|
{ASSERT((pObject)->dwTimerId == 0); \
|
|
(pObject)->dwTimerId=H245StartTimer((pObject)->pInstance,pObject,pfnCallback,uTicks);}
|
|
|
|
#define FsmStopTimer(pObject) \
|
|
{H245StopTimer((pObject)->pInstance,(pObject)->dwTimerId); (pObject)->dwTimerId = 0;}
|
|
|
|
#endif // H245FSM_H
|