Source code of Windows XP (NT5)
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#ifndef __h323ics_h323asn1_h
#define __h323ics_h323asn1_h
#include "q931msg.h"
DWORD H225EncodePdu (
IN DWORD PduType,
IN PVOID PduStructure,
OUT PUCHAR * ReturnBuffer,
OUT PDWORD ReturnBufferLength);
DWORD H225DecodePdu (
IN PUCHAR Buffer,
IN DWORD BufferLength,
IN DWORD PduType,
OUT PVOID * ReturnPduStructure);
DWORD H225FreePdu (
IN DWORD PduType,
IN PVOID PduStructure);
DWORD H225FreeBuffer (
IN PUCHAR Buffer);
DWORD H245EncodePdu (
IN DWORD PduType,
IN PVOID PduStructure,
OUT PUCHAR * ReturnBuffer,
OUT PDWORD ReturnBufferLength);
DWORD H245DecodePdu (
IN PUCHAR Buffer,
IN DWORD BufferLength,
IN DWORD PduType,
OUT PVOID * ReturnPduStructure);
DWORD H245FreePdu (
IN DWORD PduType,
IN PVOID PduStructure);
DWORD H245FreeBuffer (
IN PUCHAR Buffer);
// These macros define declarations for inline functions.
// This provides type safety when encoding and decoding certain PDUs.
#define DECLARE_CODER_FUNCS(MODULE,STRUCTURE) \
/* static */ __inline DWORD MODULE ## EncodePdu_ ## STRUCTURE \
(STRUCTURE * PduStructure, OUT PUCHAR * ReturnBuffer, OUT PDWORD ReturnBufferLength) \
{ return MODULE ## EncodePdu (STRUCTURE ## _PDU, PduStructure, ReturnBuffer, ReturnBufferLength); } \
/* static */ __inline DWORD MODULE ## DecodePdu_ ## STRUCTURE \
(IN PUCHAR Buffer, IN DWORD BufferLength, OUT STRUCTURE ** ReturnPduStructure) \
{ return MODULE ## DecodePdu (Buffer, BufferLength, STRUCTURE ## _PDU, (PVOID *) ReturnPduStructure); } \
/* static */ __inline DWORD MODULE ## FreePdu_ ## STRUCTURE \
(IN STRUCTURE * PduStructure) \
{ return MODULE ## FreePdu (STRUCTURE ## _PDU, PduStructure); }
DECLARE_CODER_FUNCS (H225, RasMessage)
DECLARE_CODER_FUNCS (H225, H323_UserInformation)
DECLARE_CODER_FUNCS (H245, MultimediaSystemControlMessage)
void H323ASN1Initialize (void);
void H323ASN1Shutdown (void);
HRESULT EncodeQ931PDU(
IN Q931_MESSAGE *pQ931msg,
IN H323_UserInformation *pUserInformation,
OUT BYTE **ppReturnEncodedData,
OUT DWORD *pReturnEncodedDataLength
);
HRESULT EncodeH245PDU(
IN MultimediaSystemControlMessage &rH245pdu,
OUT BYTE **ppReturnEncodedData,
OUT DWORD *pReturnEncodedDataLength);
HRESULT DecodeQ931PDU(
IN BYTE *pbData,
IN DWORD dwDataLen,
OUT Q931_MESSAGE **ppReturnQ931msg,
OUT H323_UserInformation **ppReturnH323UserInfo);
HRESULT DecodeH245PDU(
IN LPBYTE Data,
IN DWORD DataLength,
OUT MultimediaSystemControlMessage **ppReturnH245pdu);
HRESULT Q931EncodeCallProceedingMessage(
IN WORD CallRefVal,
IN OUT Q931_MESSAGE *pReturnQ931msg,
IN OUT H323_UserInformation *pReturnH323UserInfo);
HRESULT Q931EncodeReleaseCompleteMessage(
IN WORD CallRefVal,
IN OUT Q931_MESSAGE *pReturnQ931msg,
IN OUT H323_UserInformation *pReturnH323UserInfo);
// These functions should only be used for PDU structures generated
// using the decode functions.
// If you allocate the PDU structures yourself (for eg. CallProceeding PDU)
// then you need to free it yourself depending on how you allocated the
// structure.
void FreeQ931PDU(
IN Q931_MESSAGE *pQ931msg,
IN H323_UserInformation *pH323UserInformation);
void FreeH245PDU(
MultimediaSystemControlMessage *pH245pdu);
#endif // __h323ics_h323asn1_h