Leaked source code of windows server 2003
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/****************************************************************************
*
* $Archive: S:/STURGEON/SRC/INCLUDE/VCS/q931pdu.h_v $
*
* INTEL Corporation Prorietary Information
*
* This listing is supplied under the terms of a license agreement
* with INTEL Corporation and may not be copied nor disclosed except
* in accordance with the terms of that agreement.
*
* Copyright (c) 1996 Intel Corporation.
*
* $Revision: 1.11 $
* $Date: 22 Jan 1997 17:21:04 $
* $Author: MANDREWS $
*
* Abstract: Parser routines for Q931 PDUs
*
***************************************************************************/
#ifndef Q931PAR_H
#define Q931PAR_H
#include <winerror.h>
#include "av_asn1.h"
#ifdef __cplusplus
extern "C" {
#endif
struct S_BUFFERDESCR
{
DWORD Length;
BYTE *BufferPtr;
};
typedef struct S_BUFFERDESCR BUFFERDESCR;
typedef struct S_BUFFERDESCR *PBUFFERDESCR;
// Mask to extract a message type from a byte
#define MESSAGETYPEMASK 0x7f
typedef BYTE MESSAGEIDTYPE;
// Q931 defined message types
#define ALERTINGMESSAGETYPE 0x01
#define PROCEEDINGMESSAGETYPE 0x02
#define CONNECTMESSAGETYPE 0x07
#define CONNECTACKMESSAGETYPE 0x0F
#define PROGRESSMESSAGETYPE 0x03
#define SETUPMESSAGETYPE 0x05
#define SETUPACKMESSAGETYPE 0x0D
#define RESUMEMESSAGETYPE 0x26
#define RESUMEACKMESSAGETYPE 0x2E
#define RESUMEREJMESSAGETYPE 0x22
#define SUSPENDMESSAGETYPE 0x25
#define SUSPENDACKMESSAGETYPE 0x2D
#define SUSPENDREJMESSAGETYPE 0x21
#define USERINFOMESSAGETYPE 0x20
#define DISCONNECTMESSAGETYPE 0x45
#define RELEASEMESSAGETYPE 0x4D
#define RELEASECOMPLMESSAGETYPE 0x5A
#define RESTARTMESSAGETYPE 0x46
#define RESTARTACKMESSAGETYPE 0x4E
#define SEGMENTMESSAGETYPE 0x60
#define CONGCTRLMESSAGETYPE 0x79
#define INFORMATIONMESSAGETYPE 0x7B
#define NOTIFYMESSAGETYPE 0x6E
#define STATUSMESSAGETYPE 0x7D
#define STATUSENQUIRYMESSAGETYPE 0x75
// Mask to remove only the field identifier from a type 1 single octet field
#define TYPE1IDENTMASK 0xf0
// Mask to remove only the value from a type 1 single octet field
#define TYPE1VALUEMASK 0x0f
// Type of the field identitifiers
typedef BYTE FIELDIDENTTYPE;
// Field identifiers
// Single octet values
#define IDENT_RESERVED 0x80
#define IDENT_SHIFT 0x90
#define IDENT_MORE 0xA0
#define IDENT_SENDINGCOMPLETE 0xA1
#define IDENT_CONGESTION 0xB0
#define IDENT_REPEAT 0xD0
// Variable length octet values
#define IDENT_SEGMENTED 0x00
#define IDENT_BEARERCAP 0x04
#define IDENT_CAUSE 0x08
#define IDENT_CALLIDENT 0x10
#define IDENT_CALLSTATE 0x14
#define IDENT_CHANNELIDENT 0x18
#define IDENT_PROGRESS 0x1E
#define IDENT_NETWORKSPEC 0x20
#define IDENT_NOTIFICATION 0x27
#define IDENT_DISPLAY 0x28
#define IDENT_DATE 0x29
#define IDENT_KEYPAD 0x2C
#define IDENT_SIGNAL 0x34
#define IDENT_INFORMATIONRATE 0x40
#define IDENT_ENDTOENDDELAY 0x42
#define IDENT_TRANSITDELAY 0x43
#define IDENT_PLBINARYPARAMS 0x44
#define IDENT_PLWINDOWSIZE 0x45
#define IDENT_PACKETSIZE 0x46
#define IDENT_CLOSEDUG 0x47
#define IDENT_REVCHARGE 0x4A
#define IDENT_CALLINGNUMBER 0x6C
#define IDENT_CALLINGSUBADDR 0x6D
#define IDENT_CALLEDNUMBER 0x70
#define IDENT_CALLEDSUBADDR 0x71
#define IDENT_REDIRECTING 0x74
#define IDENT_TRANSITNET 0x78
#define IDENT_RESTART 0x79
#define IDENT_LLCOMPATIBILITY 0x7C
#define IDENT_HLCOMPATIBILITY 0x7D
#define IDENT_USERUSER 0x7E
//-------------------------------------------------------------------
// Structures for messages and information elements
//-------------------------------------------------------------------
typedef BYTE PDTYPE;
#define Q931PDVALUE ((PDTYPE)0x08)
typedef WORD CRTYPE;
// Since right now we don't need to separate out the individual
// parts of the fields of the structures these are the base
// types from which the fields are made.
// Single octet element type 1 (contains a value)
struct S_SINGLESTRUCT1
{
BOOLEAN Present;
BYTE Value;
};
// Single octet element type 2 (does not contain a value)
struct S_SINGLESTRUCT2
{
BOOLEAN Present;
};
// Variable length element
// Maximum element size
#define MAXVARFIELDLEN 131
struct S_VARSTRUCT
{
BOOLEAN Present;
BYTE Length;
BYTE Contents[MAXVARFIELDLEN];
};
// Right now all of the fields are bound to the simplest
// structures above. No parsing other than just
// single octet/variable octet is done. When the values
// in some of the subfields are important, change the
// structures here and change the appropriate parsing
// routine to generate the right structure
// The shift element is a single type 1
typedef struct S_SINGLESTRUCT1 SHIFTIE;
typedef struct S_SINGLESTRUCT1 *PSHIFTIE;
// The more data element is a single type 2
typedef struct S_SINGLESTRUCT2 MOREDATAIE;
typedef struct S_SINGLESTRUCT2 *PMOREDATAIE;
// The sending complete element is a single type 2
typedef struct S_SINGLESTRUCT2 SENDCOMPLIE;
typedef struct S_SINGLESTRUCT2 *PSENDCOMPLIE;
// The congestion level element is a single type 1
typedef struct S_SINGLESTRUCT1 CONGESTIONIE;
typedef struct S_SINGLESTRUCT1 *PCONGESTIONIE;
// The repeat indicator element is a single type 1
typedef struct S_SINGLESTRUCT1 REPEATIE;
typedef struct S_SINGLESTRUCT1 *PREPEATIE;
// The segmented element is a variable
typedef struct S_VARSTRUCT SEGMENTEDIE;
typedef struct S_VARSTRUCT *PSEGMENTEDIE;
// The bearer capability element is a variable
typedef struct S_VARSTRUCT BEARERCAPIE;
typedef struct S_VARSTRUCT *PBEARERCAPIE;
// The cause element is a variable
typedef struct S_VARSTRUCT CAUSEIE;
typedef struct S_VARSTRUCT *PCAUSEIE;
// The call identity element is a variable
typedef struct S_VARSTRUCT CALLIDENTIE;
typedef struct S_VARSTRUCT *PCALLIDENTIE;
// The call state element is a variable
typedef struct S_VARSTRUCT CALLSTATEIE;
typedef struct S_VARSTRUCT *PCALLSTATEIE;
// The channel identifier element is a variable
typedef struct S_VARSTRUCT CHANIDENTIE;
typedef struct S_VARSTRUCT *PCHANIDENTIE;
// The progress indicator element is a variable
typedef struct S_VARSTRUCT PROGRESSIE;
typedef struct S_VARSTRUCT *PPROGRESSIE;
// The network specific element is a variable
typedef struct S_VARSTRUCT NETWORKIE;
typedef struct S_VARSTRUCT *PNETWORKIE;
// The notification indicator element is a variable
typedef struct S_VARSTRUCT NOTIFICATIONINDIE;
typedef struct S_VARSTRUCT *PNOTIFICATIONINDIE;
// The display element is a variable
typedef struct S_VARSTRUCT DISPLAYIE;
typedef struct S_VARSTRUCT *PDISPLAYIE;
// The date element is a variable
typedef struct S_VARSTRUCT DATEIE;
typedef struct S_VARSTRUCT *PDATEIE;
// The keypad element is a variable
typedef struct S_VARSTRUCT KEYPADIE;
typedef struct S_VARSTRUCT *PKEYPADIE;
// The signal element is a variable
typedef struct S_VARSTRUCT SIGNALIE;
typedef struct S_VARSTRUCT *PSIGNALIE;
// The information rate element is a variable
typedef struct S_VARSTRUCT INFORATEIE;
typedef struct S_VARSTRUCT *PINFORATEIE;
// The end to end transit delay element is a variable
typedef struct S_VARSTRUCT ENDTOENDDELAYIE;
typedef struct S_VARSTRUCT *PENDTOENDDELAYIE;
// The transit delay element is a variable
typedef struct S_VARSTRUCT TRANSITDELAYIE;
typedef struct S_VARSTRUCT *PTRANSITDELAYIE;
// The packet layer binary parameters element is a variable
typedef struct S_VARSTRUCT PLBINARYPARAMSIE;
typedef struct S_VARSTRUCT *PPLBINARYPARAMSIE;
// The packet layer window size element is a variable
typedef struct S_VARSTRUCT PLWINDOWSIZEIE;
typedef struct S_VARSTRUCT *PPLWINDOWSIZEIE;
// The packet size element is a variable
typedef struct S_VARSTRUCT PACKETSIZEIE;
typedef struct S_VARSTRUCT *PPACKETSIZEIE;
// The closed user group element is a variable
typedef struct S_VARSTRUCT CLOSEDUGIE;
typedef struct S_VARSTRUCT *PCLOSEDUGIE;
// The reverse charge indication element is a variable
typedef struct S_VARSTRUCT REVERSECHARGEIE;
typedef struct S_VARSTRUCT *PREVERSECHARGEIE;
// The calling party number element is a variable
typedef struct S_VARSTRUCT CALLINGNUMBERIE;
typedef struct S_VARSTRUCT *PCALLINGNUMBERIE;
// The calling party subaddress element is a variable
typedef struct S_VARSTRUCT CALLINGSUBADDRIE;
typedef struct S_VARSTRUCT *PCALLINGSUBADDRIE;
// The called party subaddress element is a variable
typedef struct S_VARSTRUCT CALLEDSUBADDRIE;
typedef struct S_VARSTRUCT *PCALLEDSUBADDRIE;
// The redirecting number element is a variable
typedef struct S_VARSTRUCT REDIRECTINGIE;
typedef struct S_VARSTRUCT *PREDIRECTINGIE;
// The transit network selection element is a variable
typedef struct S_VARSTRUCT TRANSITNETIE;
typedef struct S_VARSTRUCT *PTRANSITNETIE;
// The restart indicator element is a variable
typedef struct S_VARSTRUCT RESTARTIE;
typedef struct S_VARSTRUCT *PRESTARTIE;
// The low layer compatibility element is a variable
typedef struct S_VARSTRUCT LLCOMPATIBILITYIE;
typedef struct S_VARSTRUCT *PLLCOMPATIBILITYIE;
// The higher layer compatibility element is a variable
typedef struct S_VARSTRUCT HLCOMPATIBILITYIE;
typedef struct S_VARSTRUCT *PHLCOMPATIBILITYIE;
#define Q931_PROTOCOL_X209 ((PDTYPE)0x05)
struct S_VARSTRUCT_UU
{
BOOLEAN Present;
BYTE ProtocolDiscriminator;
WORD UserInformationLength;
BYTE UserInformation[0x1000]; // 4k bytes should be good for now...
};
// The user to user element is a variable
typedef struct S_VARSTRUCT_UU USERUSERIE;
typedef struct S_VARSTRUCT_UU *PUSERUSERIE;
struct S_PARTY_NUMBER
{
BOOLEAN Present;
BYTE NumberType;
BYTE NumberingPlan;
BYTE PartyNumberLength;
BYTE PartyNumbers[MAXVARFIELDLEN];
};
// The called party number element is a variable
typedef struct S_PARTY_NUMBER CALLEDNUMBERIE;
typedef struct S_PARTY_NUMBER *PCALLEDNUMBERIE;
// Q932 defined message types
#define FACILITYMESSAGETYPE 0x62
#define IDENT_FACILITY 0x1C
typedef struct S_VARSTRUCT FACILITYIE;
typedef struct S_VARSTRUCT *PFACILITYIE;
// Generic structure for a Q.931 message
struct S_MESSAGE
{
PDTYPE ProtocolDiscriminator;
CRTYPE CallReference;
MESSAGEIDTYPE MessageType;
SHIFTIE Shift;
MOREDATAIE MoreData;
SENDCOMPLIE SendingComplete;
CONGESTIONIE CongestionLevel;
REPEATIE RepeatIndicator;
SEGMENTEDIE SegmentedMessage;
BEARERCAPIE BearerCapability;
CAUSEIE Cause;
CALLIDENTIE CallIdentity;
CALLSTATEIE CallState;
CHANIDENTIE ChannelIdentification;
PROGRESSIE ProgressIndicator;
NETWORKIE NetworkFacilities;
NOTIFICATIONINDIE NotificationIndicator;
DISPLAYIE Display;
DATEIE Date;
KEYPADIE Keypad;
SIGNALIE Signal;
INFORATEIE InformationRate;
ENDTOENDDELAYIE EndToEndTransitDelay;
TRANSITDELAYIE TransitDelay;
PLBINARYPARAMSIE PacketLayerBinaryParams;
PLWINDOWSIZEIE PacketLayerWindowSize;
PACKETSIZEIE PacketSize;
CLOSEDUGIE ClosedUserGroup;
REVERSECHARGEIE ReverseChargeIndication;
CALLINGNUMBERIE CallingPartyNumber;
CALLINGSUBADDRIE CallingPartySubaddress;
CALLEDNUMBERIE CalledPartyNumber;
CALLEDSUBADDRIE CalledPartySubaddress;
REDIRECTINGIE RedirectingNumber;
TRANSITNETIE TransitNetworkSelection;
RESTARTIE RestartIndicator;
LLCOMPATIBILITYIE LowLayerCompatibility;
HLCOMPATIBILITYIE HighLayerCompatibility;
FACILITYIE Facility;
USERUSERIE UserToUser;
};
typedef struct S_MESSAGE Q931MESSAGE;
typedef struct S_MESSAGE *PQ931MESSAGE;
//-------------------------------------------------------------------
// Single routine for parsing Q931 messages
//-------------------------------------------------------------------
HRESULT
Q931ParseMessage(
BYTE *CodedBufferPtr,
DWORD CodedBufferLength,
PQ931MESSAGE Message);
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
//==========================================================
// CAUSE FIELD DEFINITIONS
//==========================================================
#define CAUSE_EXT_BIT 0x80
#define CAUSE_CODING_CCITT 0x00
#define CAUSE_LOCATION_USER 0x00
#define CAUSE_RECOMMENDATION_Q931 0x00
#define CAUSE_VALUE_NORMAL_CLEAR 0x10
#define CAUSE_VALUE_USER_BUSY 0x11
#define CAUSE_VALUE_NO_ANSWER 0x13 // Callee does not answer
#define CAUSE_VALUE_REJECTED 0x15
#define CAUSE_VALUE_ENQUIRY_RESPONSE 0x1E
#define CAUSE_VALUE_NOT_IMPLEMENTED 0x4F
#define CAUSE_VALUE_INVALID_CRV 0x51
#define CAUSE_VALUE_INVALID_MSG 0x5F
#define CAUSE_VALUE_IE_MISSING 0x60
#define CAUSE_VALUE_IE_CONTENTS 0x64
#define CAUSE_VALUE_TIMER_EXPIRED 0x66
typedef struct _ERROR_MAP
{
int nErrorCode;
#ifdef UNICODE_TRACE
LPWSTR pszErrorText;
#else
LPSTR pszErrorText;
#endif
} ERROR_MAP;
typedef struct _BINARY_STRING
{
WORD length;
BYTE *ptr;
} BINARY_STRING;
typedef struct _Q931_SETUP_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
PCC_ALIASNAMES pCallerAliasList;
PCC_ALIASNAMES pCalleeAliasList;
PCC_ALIASNAMES pExtraAliasList;
PCC_ALIASITEM pExtensionAliasItem;
BOOL SourceAddrPresent;
BOOL CallerAddrPresent;
BOOL CalleeAddrPresent;
BOOL CalleeDestAddrPresent;
CC_ADDR SourceAddr; // originating addr
CC_ADDR CallerAddr; // gk addr
CC_ADDR CalleeAddr; // local addr
CC_ADDR CalleeDestAddr; // target destination addr
WORD wGoal;
WORD wCallType;
BOOL bCallerIsMC;
CC_CONFERENCEID ConferenceID;
CC_ENDPOINTTYPE EndpointType;
CC_VENDORINFO VendorInfo;
BYTE bufProductValue[CC_MAX_PRODUCT_LENGTH];
BYTE bufVersionValue[CC_MAX_VERSION_LENGTH];
} Q931_SETUP_ASN;
typedef struct _Q931_RELEASE_COMPLETE_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
BYTE bReason;
} Q931_RELEASE_COMPLETE_ASN;
typedef struct _Q931_CONNECT_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
BOOL h245AddrPresent;
CC_ADDR h245Addr;
CC_CONFERENCEID ConferenceID;
CC_ENDPOINTTYPE EndpointType;
CC_VENDORINFO VendorInfo;
BYTE bufProductValue[CC_MAX_PRODUCT_LENGTH];
BYTE bufVersionValue[CC_MAX_VERSION_LENGTH];
} Q931_CONNECT_ASN;
typedef struct _Q931_ALERTING_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
CC_ADDR h245Addr;
} Q931_ALERTING_ASN;
typedef struct _Q931_CALL_PROCEEDING_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
CC_ADDR h245Addr;
} Q931_CALL_PROCEEDING_ASN;
typedef struct _Q931_FACILITY_ASN
{
BOOL NonStandardDataPresent;
CC_NONSTANDARDDATA NonStandardData;
CC_ADDR AlternativeAddr;
PCC_ALIASNAMES pAlternativeAliasList;
CC_CONFERENCEID ConferenceID;
BOOL ConferenceIDPresent;
BYTE bReason;
} Q931_FACILITY_ASN;
//-------------------------------------------------------------------
// Initialization Routines
//-------------------------------------------------------------------
HRESULT Q931InitPER();
HRESULT Q931DeInitPER();
//-------------------------------------------------------------------
// Parsing Routines
//-------------------------------------------------------------------
HRESULT
Q931MakeEncodedMessage(
PQ931MESSAGE Message,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931SetupParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_SETUP_ASN *pParsedData);
HRESULT
Q931ReleaseCompleteParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_RELEASE_COMPLETE_ASN *pParsedData);
HRESULT
Q931ConnectParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_CONNECT_ASN *pParsedData);
HRESULT
Q931AlertingParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_ALERTING_ASN *pParsedData);
HRESULT
Q931ProceedingParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_CALL_PROCEEDING_ASN *pParsedData);
HRESULT
Q931FacilityParseASN(
ASN1_CODER_INFO *pWorld,
BYTE *pEncodedBuf,
DWORD dwEncodedLength,
Q931_FACILITY_ASN *pParsedData);
//-------------------------------------------------------------------
// Encoding Routines
//-------------------------------------------------------------------
// routines for the Setup Message:
HRESULT
Q931SetupEncodePDU(
WORD wCallReference,
char *pszDisplay,
char *pszCalledPartyNumber,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931SetupEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_ADDR *pCallerAddr,
CC_ADDR *pCalleeAddr,
WORD wGoal,
WORD wCallType,
BOOL bCallerIsMC,
CC_CONFERENCEID *pConferenceID,
PCC_ALIASNAMES pCallerAliasList,
PCC_ALIASNAMES pCalleeAliasList,
PCC_ALIASNAMES pExtraAliasList,
PCC_ALIASITEM pExtensionAliasItem,
PCC_VENDORINFO pVendorInfo,
BOOL bIsTerminal,
BOOL bIsGateway,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
// routines for the Release Complete Message:
HRESULT
Q931ReleaseCompleteEncodePDU(
WORD wCallReference,
BYTE *pbCause,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931ReleaseCompleteEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_CONFERENCEID *pConferenceID, // must be able to support 16 byte conf id's!
BYTE *pbReason,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
// routines for the Connect Message:
HRESULT
Q931ConnectEncodePDU(
WORD wCallReference,
char *pszDisplay,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931ConnectEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_CONFERENCEID *pConferenceID, // must be able to support 16 byte conf id's!
CC_ADDR *h245Addr,
PCC_ENDPOINTTYPE pEndpointType,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
// routines for the Alerting Message:
HRESULT
Q931AlertingEncodePDU(
WORD wCallReference,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931AlertingEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_ADDR *h245Addr,
PCC_ENDPOINTTYPE pEndpointType,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
// routines for the Proceeding Message:
HRESULT
Q931ProceedingEncodePDU(
WORD wCallReference,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931ProceedingEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_ADDR *h245Addr,
PCC_ENDPOINTTYPE pEndpointType,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
HRESULT
Q931FacilityEncodePDU(
WORD wCallReference,
BINARY_STRING *pUserUserData,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
HRESULT
Q931FacilityEncodeASN(
PCC_NONSTANDARDDATA pNonStandardData,
CC_ADDR *AlternativeAddr,
BYTE bReason,
CC_CONFERENCEID *pConferenceID,
PCC_ALIASNAMES pAlternativeAliasList,
ASN1_CODER_INFO *pWorld,
BYTE **ppEncodedBuf,
DWORD *pdwEncodedLength);
HRESULT
Q931StatusEncodePDU(
WORD wCallReference,
char *pszDisplay,
BYTE bCause,
BYTE bCallState,
BYTE **CodedBufferPtr,
DWORD *CodedBufferLength);
void
Q931FreeEncodedBuffer(ASN1_CODER_INFO *pWorld, BYTE *pEncodedBuf);
#ifdef __cplusplus
}
#endif
#endif Q931PAR_H