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404 lines
14 KiB
404 lines
14 KiB
/***************************************************************************
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*
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* File: linkapi.h
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*
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* INTEL Corporation Proprietary Information
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* Copyright (c) 1996 Intel Corporation.
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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 used, copied, nor disclosed
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* except in accordance with the terms of that agreement.
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*
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***************************************************************************
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*
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* $Workfile: linkapi.h $
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* $Revision: 1.17 $
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* $Modtime: 11 Dec 1996 13:57:14 $
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* $Log: S:\sturgeon\src\include\vcs\linkapi.h_v $
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*
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* Rev 1.17 11 Dec 1996 14:10:48 SBELL1
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* changed parameters to linkLayerInit/Listen
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*
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* Rev 1.16.1.0 11 Dec 1996 13:57:14 SBELL1
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* CHanged parameters to linkLayerInit and Listen.
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*
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* Rev 1.16 14 Oct 1996 14:00:20 EHOWARDX
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*
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* Unicode changes.
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*
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* Rev 1.15 15 Aug 1996 14:00:08 rodellx
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*
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* Added additional address validation error case for DOMAIN_NAME addresses
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* which cannot be resolved, but are used with SocketBind().
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*
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* Rev 1.14 11 Jul 1996 18:42:10 rodellx
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*
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* Fixed bug where HRESULT ids were in violation of Facility and/or Code
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* value rules.
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*
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* Rev 1.13 10 Jul 1996 21:36:26 rodellx
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*
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* Changed error code base to required value defined by apierror.h.
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*
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* Rev 1.12 May 28 1996 18:09:08 plantz
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* Change all error and message codes to use HRESULT. Deleted unused codes.
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*
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* Rev 1.11 09 May 1996 18:28:36 EHOWARDX
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* Eliminated unnessary formal parameters.
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*
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* Rev 1.4 25 Apr 1996 21:43:50 helgebax
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* Copied Philip's changes from sturgeon\src\include.
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*
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* Rev 1.10 Apr 25 1996 21:07:16 plantz
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* Add messages for connect callback.
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* Add connect callback parameter to link layer accept.
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*
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* Rev 1.9 Apr 25 1996 15:36:50 plantz
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* Remove #include incommon.h and dependencies on types defined in incommon
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* (use pointers to incomplete structure types instead).
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*
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* Rev 1.8 Apr 24 1996 20:54:08 plantz
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* Change name of H245LISTENCALLBACK to H245CONNECTCALLBACK and add additional
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* parameters. Add it as an parameter to linkLayerConnect as well as
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* linkLayerListen.
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*
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* Rev 1.7 Apr 24 1996 17:00:04 plantz
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* Merge 1.3.1.0 with 1.6 (changes to support Q931).
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*
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* Rev 1.6 19 Apr 1996 10:35:36 EHOWARDX
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* Encorporate Dan's latest SRPAPI.H changes.
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*
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* Rev 1.3.1.0 Apr 23 1996 13:45:26 plantz
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* Changes to support Q.931.
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*
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*****************************************************************************/
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#ifndef LINKAPI_H
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#define LINKAPI_H
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#include "apierror.h"
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#if defined(__cplusplus)
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extern "C"
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{
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#endif // (__cplusplus)
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// declare exported functions
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#if defined(LINKDLL_EXPORT)
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#define LINKDLL __declspec (dllexport)
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#else // (LINKDLL_EXPORT)
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#define LINKDLL __declspec (dllimport)
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#endif // (LINKDLL_EXPORT)
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#define SRPDLL LINKDLL
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////////////////////////////////////////////////////////////////////////////
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//
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// Link Layer defaults
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//
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////////////////////////////////////////////////////////////////////////////
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#define INVALID_PHYS_ID (DWORD) 0xffffffff
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////////////////////////////////////////////////////////////////////////////
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//
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// Link Layer Error defines
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//
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////////////////////////////////////////////////////////////////////////////
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#define LINK_ERROR_BASE ERROR_LOCAL_BASE_ID
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#define LINK_SEND_ERROR_BASE LINK_ERROR_BASE + 0x100
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#define LINK_SEND_COMP_BASE LINK_ERROR_BASE + 0x200
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#define LINK_RCV_ERROR_BASE LINK_ERROR_BASE + 0x300
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#define LINK_RCV_COMP_BASE LINK_ERROR_BASE + 0x400
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#define LINK_UTIL_ERROR_BASE LINK_ERROR_BASE + 0x500
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#define LINK_UTIL_COMP_BASE LINK_ERROR_BASE + 0x600
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#define LINK_FATAL_ERROR LINK_ERROR_BASE + 0x700
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#define LINK_CONN_ERROR_BASE LINK_ERROR_BASE + 0x800
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#define LINK_CONN_COMP_BASE LINK_ERROR_BASE + 0x900
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////////////////////////////////////////////////////////////////////////////
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//
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// CallBack Prototype for Channel CallBack
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//
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////////////////////////////////////////////////////////////////////////////
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typedef void (*H245SRCALLBACK)
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(
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DWORD dwH245Instance,
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HRESULT dwMessage,
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PBYTE pbyDataBuf,
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DWORD dwLength
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);
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// Link Send Callback error codes
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#define LINK_SEND_COMPLETE MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_SEND_COMP_BASE+ 0)
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#define LINK_SEND_ABORT MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_SEND_COMP_BASE+ 5) // Tx aborted the SDU (not implemented)
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#define LINK_SEND_WOULD_BLOCK MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_SEND_COMP_BASE+20)
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#define LINK_SEND_CLOSED MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_SEND_COMP_BASE+22)
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#define LINK_SEND_ERROR MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_SEND_COMP_BASE+23)
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// Link Receive Callback error codes
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#define LINK_RECV_DATA MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_RCV_COMP_BASE+ 6) // DATA.INDICATION from H.223 (Should not be zero)
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#define LINK_RECV_ABORT MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_RCV_COMP_BASE+ 7) // Tx aborted the SDU (not implemented)
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#define LINK_RECV_ERROR MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_RCV_COMP_BASE+10) // from AL2 - _CRC error
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#define LINK_RECV_WOULD_BLOCK MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_RCV_COMP_BASE+20)
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#define LINK_RECV_CLOSED MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_RCV_COMP_BASE+22)
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typedef void (*H245CONNECTCALLBACK)
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(
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DWORD dwH245Instance,
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HRESULT dwMessage,
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struct _ADDR *LocalAddr,
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struct _ADDR *PeerAddr
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);
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#define LINK_CONNECT_REQUEST MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_CONN_COMP_BASE+1)
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#define LINK_CONNECT_COMPLETE MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_CONN_COMP_BASE+2)
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////////////////////////////////////////////////////////////////////////////
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//
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// Link Layer Function Prototypes
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//
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////////////////////////////////////////////////////////////////////////////
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LINKDLL VOID H245WSShutdown();
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/**************************************************************************
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** Function : linkLayerInit
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** Description : This function will initialize the datalink subsystem.
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** This in turn will make appropriate calls to initialize
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** the software and hardware subsystems below this layer.
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** linkLayernit() has to be called before any other service or
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** System control functions are used.
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****************************************************************************/
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LINKDLL HRESULT
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linkLayerInit
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(
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DWORD* pdwPhysicalId,
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DWORD dwH245Instance,
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H245SRCALLBACK cbReceiveComplete,
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H245SRCALLBACK cbTransmitComplete
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);
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typedef
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HRESULT
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(*PFxnlinkLayerInit)
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(
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DWORD* pdwPhysicalId,
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DWORD dwH245Instance,
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H245SRCALLBACK cbReceiveComplete,
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H245SRCALLBACK cbTransmitComplete
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);
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///////////////////////////////////////////////////////////////
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///
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/// SRP Initialization defines
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///
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///////////////////////////////////////////////////////////////
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#define LINK_INVALID_INSTANCE MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_ERROR_BASE+1)
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#define LINK_DUPLICATE_INSTANCE MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_ERROR_BASE+2)
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#define LINK_MEM_FAILURE MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, ERROR_OUTOFMEMORY)
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#define LINK_INVALID_STATE MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_ERROR_BASE+6)
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/**************************************************************************
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** Function : linkLayerShutdown
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** Description : This releases all the memory the link layer used for a particular
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** instance. For using any of the linklayer services in that
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** instance again, a linkLayerInit has to be called.
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** This function will shutdown the linklayer session pointed
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** by the dwPhysicalID.
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***************************************************************************/
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LINKDLL HRESULT
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linkLayerShutdown
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(DWORD dwPhysicalId);
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typedef
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HRESULT
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(*PFxnlinkLayerShutdown)
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(DWORD dwPhysicalId);
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///////////////////////////////////////////////////////////////
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///
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/// SRP Termination defines
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///
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///////////////////////////////////////////////////////////////
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/**************************************************************************
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** Function : linkLayerGetInstance
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** Description : Returns the link layer instance corresponding to a physical ID
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***************************************************************************/
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LINKDLL DWORD
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linkLayerGetInstance
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(DWORD dwPhysicalId);
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typedef
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DWORD
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(*PFxnlinkLayerGetInstance)
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(DWORD dwPhysicalId);
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/**************************************************************************
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** Function : datalinkReceiveRequest
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** Description : Posts one receive message buffer to the link layer subsystem.
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** This buffer will be filled in by the incoming message for
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** the specified channel. H223_DATA_INDICATION will be sendto
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** the client on receiving a complete PDU. Error messages may also be
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** reported.
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***************************************************************************/
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LINKDLL HRESULT
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datalinkReceiveRequest
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(
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DWORD dwPhysicalId,
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PBYTE pbyDataBuf,
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DWORD dwLength
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);
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typedef
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HRESULT
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(*PFxndatalinkReceiveRequest)
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(
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DWORD dwPhysicalId,
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PBYTE pbyDataBuf,
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DWORD dwLength
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);
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// Link Receive Request return codes
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#define LINK_RECV_NOBUFF MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_RCV_ERROR_BASE+ 2) // No room for buffering
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/**************************************************************************
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** Function : datalinkSendRequest
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** Description : Hands over the message to be sent to the link layer subsystem.
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***************************************************************************/
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LINKDLL HRESULT
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datalinkSendRequest
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(
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DWORD dwPhysicalId,
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PBYTE pbyDataBuf,
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DWORD dwLength
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);
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typedef
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HRESULT
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(*PFxndatalinkSendRequest)
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(
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DWORD dwPhysicalId,
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PBYTE pbyDataBuf,
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DWORD dwLength
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);
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// Link Send Request return codes
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#define LINK_SEND_NOBUFF MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_SEND_ERROR_BASE+2)
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/**************************************************************************
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** Function : linkLayerFlushChannel
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** Description : All the posted transmit and/or receive buffers are released.
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** The bitmasks DATALINK_RECEIVE and DATALINK_RECEIVE can
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** be OR'd together to perform both functions in the same call
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**************************************************************************/
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LINKDLL HRESULT
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linkLayerFlushChannel
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(DWORD dwPhysicalId, DWORD dwDirectionMask);
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typedef
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HRESULT
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(*PFxnlinkLayerFlushChannel)
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(DWORD dwPhysicalId, DWORD dwDirectionMask);
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// Bits for dwDirectionMask
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#define DATALINK_RECEIVE 0x01 // Flush buffer in receive direction
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#define DATALINK_TRANSMIT 0x02 // Flush buffer in Transmit direction
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#define DATALINK_TX_ACTIVES 0x04 // Flush buffers actively being transmitted
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#define SHUTDOWN_PENDING 0x08 // Shutdown is in progress
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#define FLUSH_SYNCH 0x10 // 0: Asynch call, 1: Synchronous call
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#define DATALINK_TRANSMIT_ALL (DATALINK_TRANSMIT | DATALINK_TX_ACTIVES)
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#define SHUTDOWN_MASK (DATALINK_RECEIVE | DATALINK_TRANSMIT | SHUTDOWN_PENDING)
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// linkLayerFlushChannel Callback
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#define LINK_FLUSH_COMPLETE MAKE_CUSTOM_HRESULT(SEVERITY_SUCCESS, TRUE, FACILITY_H245WS, LINK_UTIL_COMP_BASE+1)
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/**************************************************************************
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** Function : linkLayerFlushAll
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** Description : All the posted transmit and/or receive buffers are released.
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** Same as LinkLayerFlushChannel except:
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** 1) Synchronous Call
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** 2) Transmit Buffers in progress are flushed
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**************************************************************************/
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LINKDLL HRESULT
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linkLayerFlushAll
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(DWORD dwPhysicalId);
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typedef
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HRESULT
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(*PFxnlinkLayerFlushAll)
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(DWORD dwPhysicalId);
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// linkLayerFlushChannel RETURN CODES same as for linkLayerFlushChannel
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#define LINK_UNKNOWN_ADDR MAKE_CUSTOM_HRESULT(SEVERITY_ERROR, TRUE, FACILITY_H245WS, LINK_UTIL_ERROR_BASE + 1)
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LINKDLL HRESULT
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linkLayerConnect(DWORD dwPhysicalId, struct _ADDR *pAddr, H245CONNECTCALLBACK callback);
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LINKDLL HRESULT
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linkLayerListen(DWORD* dwPhysicalId, DWORD dwH245Instance, struct _ADDR *pAddr, H245CONNECTCALLBACK callback);
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LINKDLL HRESULT
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linkLayerAccept(DWORD dwPhysicalIdListen, DWORD dwPhysicalIdAccept, H245CONNECTCALLBACK callback);
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#define LL_PDU_SIZE 2048
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/**************************************************************************
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**
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** Dynamic DLL Function Calls
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**
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**************************************************************************/
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#ifdef UNICODE
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#define SRPDLLFILE L"h245srp.dll"
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#define H245WSDLLFILE L"h245ws.dll"
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#else
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#define SRPDLLFILE "h245srp.dll"
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#define H245WSDLLFILE "h245ws.dll"
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#endif
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#define LINKINITIALIZE __TEXT("linkLayerInit")
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#define LINKSHUTDOWN __TEXT("linkLayerShutdown")
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#define LINKGETINSTANCE __TEXT("linkLayerGetInstance")
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#define LINKRECEIVEREQUEST __TEXT("datalinkReceiveRequest")
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#define LINKSENDREQUEST __TEXT("datalinkSendRequest")
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#define LINKFLUSHCHANNEL __TEXT("linkLayerFlushChannel")
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#define LINKFLUSHALL __TEXT("linkLayerFlushAll")
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#if defined(__cplusplus)
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}
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#endif // (__cplusplus)
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#endif // LINKAPI_H
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