112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
#ifndef __h323ics_h323asn1_h
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#define __h323ics_h323asn1_h
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#include "q931msg.h"
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DWORD H225EncodePdu (
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IN DWORD PduType,
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IN PVOID PduStructure,
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OUT PUCHAR * ReturnBuffer,
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OUT PDWORD ReturnBufferLength);
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DWORD H225DecodePdu (
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IN PUCHAR Buffer,
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IN DWORD BufferLength,
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IN DWORD PduType,
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OUT PVOID * ReturnPduStructure);
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DWORD H225FreePdu (
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IN DWORD PduType,
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IN PVOID PduStructure);
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DWORD H225FreeBuffer (
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IN PUCHAR Buffer);
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DWORD H245EncodePdu (
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IN DWORD PduType,
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IN PVOID PduStructure,
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OUT PUCHAR * ReturnBuffer,
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OUT PDWORD ReturnBufferLength);
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DWORD H245DecodePdu (
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IN PUCHAR Buffer,
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IN DWORD BufferLength,
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IN DWORD PduType,
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OUT PVOID * ReturnPduStructure);
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DWORD H245FreePdu (
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IN DWORD PduType,
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IN PVOID PduStructure);
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DWORD H245FreeBuffer (
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IN PUCHAR Buffer);
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// These macros define declarations for inline functions.
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// This provides type safety when encoding and decoding certain PDUs.
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#define DECLARE_CODER_FUNCS(MODULE,STRUCTURE) \
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/* static */ __inline DWORD MODULE ## EncodePdu_ ## STRUCTURE \
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(STRUCTURE * PduStructure, OUT PUCHAR * ReturnBuffer, OUT PDWORD ReturnBufferLength) \
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{ return MODULE ## EncodePdu (STRUCTURE ## _PDU, PduStructure, ReturnBuffer, ReturnBufferLength); } \
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/* static */ __inline DWORD MODULE ## DecodePdu_ ## STRUCTURE \
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(IN PUCHAR Buffer, IN DWORD BufferLength, OUT STRUCTURE ** ReturnPduStructure) \
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{ return MODULE ## DecodePdu (Buffer, BufferLength, STRUCTURE ## _PDU, (PVOID *) ReturnPduStructure); } \
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/* static */ __inline DWORD MODULE ## FreePdu_ ## STRUCTURE \
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(IN STRUCTURE * PduStructure) \
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{ return MODULE ## FreePdu (STRUCTURE ## _PDU, PduStructure); }
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DECLARE_CODER_FUNCS (H225, RasMessage)
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DECLARE_CODER_FUNCS (H225, H323_UserInformation)
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DECLARE_CODER_FUNCS (H245, MultimediaSystemControlMessage)
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void H323ASN1Initialize (void);
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void H323ASN1Shutdown (void);
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HRESULT EncodeQ931PDU(
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IN Q931_MESSAGE *pQ931msg,
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IN H323_UserInformation *pUserInformation,
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OUT BYTE **ppReturnEncodedData,
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OUT DWORD *pReturnEncodedDataLength
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);
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HRESULT EncodeH245PDU(
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IN MultimediaSystemControlMessage &rH245pdu,
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OUT BYTE **ppReturnEncodedData,
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OUT DWORD *pReturnEncodedDataLength);
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HRESULT DecodeQ931PDU(
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IN BYTE *pbData,
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IN DWORD dwDataLen,
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OUT Q931_MESSAGE **ppReturnQ931msg,
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OUT H323_UserInformation **ppReturnH323UserInfo);
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HRESULT DecodeH245PDU(
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IN LPBYTE Data,
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IN DWORD DataLength,
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OUT MultimediaSystemControlMessage **ppReturnH245pdu);
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HRESULT Q931EncodeCallProceedingMessage(
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IN WORD CallRefVal,
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IN OUT Q931_MESSAGE *pReturnQ931msg,
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IN OUT H323_UserInformation *pReturnH323UserInfo);
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HRESULT Q931EncodeReleaseCompleteMessage(
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IN WORD CallRefVal,
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IN OUT Q931_MESSAGE *pReturnQ931msg,
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IN OUT H323_UserInformation *pReturnH323UserInfo);
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// These functions should only be used for PDU structures generated
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// using the decode functions.
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// If you allocate the PDU structures yourself (for eg. CallProceeding PDU)
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// then you need to free it yourself depending on how you allocated the
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// structure.
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void FreeQ931PDU(
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IN Q931_MESSAGE *pQ931msg,
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IN H323_UserInformation *pH323UserInformation);
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void FreeH245PDU(
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MultimediaSystemControlMessage *pH245pdu);
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#endif // __h323ics_h323asn1_h
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