270 lines
7 KiB
C++
270 lines
7 KiB
C++
#ifndef _RAS_H_
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#define _RAS_H_
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#define REG_RETRY_MAX 3
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#define URQ_RETRY_MAX 2
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#define ARQ_RETRY_MAX 3
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#define DRQ_RETRY_MAX 3
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#define RASIO_SEND_BUFFER_LIST_MAX 10
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#define REG_EXPIRE_TIME 4000
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#define ARQ_EXPIRE_TIME 4000
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#define NOT_RESEND_SEQ_NUM -1
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//(127.0.0.1 in network byte order)
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#define NET_LOCAL_IP_ADDR_INTERFACE 0x0100007F
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//(127.0.0.1 in host byte order)
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#define HOST_LOCAL_IP_ADDR_INTERFACE 0x7F000001
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extern const ASN1objectidentifier_s _OID_H225ProtocolIdentifierV1 [];
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extern const ASN1objectidentifier_s _OID_H225ProtocolIdentifierV2 [];
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#define OID_H225ProtocolIdentifierV1 const_cast<ASN1objectidentifier_s *> (_OID_H225ProtocolIdentifierV1);
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#define OID_H225ProtocolIdentifierV2 const_cast<ASN1objectidentifier_s *> (_OID_H225ProtocolIdentifierV2);
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#undef OID_ELEMENT
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#define OID_RasProtocolIdentifierV2 (ASN1objectidentifier_s *)_OID_RasProtocolIdentifierV2
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class RAS_CLIENT;
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struct EXPIRE_CONTEXT
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{
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WORD seqNumber;
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union
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{
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HDRVCALL DriverCallHandle;
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RAS_CLIENT * RasClient;
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};
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};
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typedef struct _ALIASCHANGE_REQUEST
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{
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LIST_ENTRY listEntry;
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ENDPOINT_ID rasEndpointID;
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WORD wRequestSeqNum;
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PH323_ALIASNAMES pAliasList;
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} ALIASCHANGE_REQUEST, *PALIASCHANGE_REQUEST;
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#define REG_TTL_MARGIN 2
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enum RAS_CLIENT_STATE
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{
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RAS_CLIENT_STATE_NONE = 0,
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RAS_CLIENT_STATE_INITIALIZED
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};
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//If the app wants to send an URQ but the TSP ihasn't received RCF yet then we
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//the information in this struct and send URQ when we get RCF.
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typedef struct _PENDINGURQ
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{
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WORD RRQSeqNumber;
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} PENDINGURQ;
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enum RAS_REGISTER_STATE
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{
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RAS_REGISTER_STATE_IDLE = 0,
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RAS_REGISTER_STATE_RRQSENT,
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RAS_REGISTER_STATE_RRQEXPIRED,
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RAS_REGISTER_STATE_REGISTERED,
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RAS_REGISTER_STATE_URQSENT,
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RAS_REGISTER_STATE_URQEXPIRED,
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RAS_REGISTER_STATE_UNREGISTERED,
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RAS_REGISTER_STATE_RRJ,
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RAS_REGISTER_STATE_URQRECVD,
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};
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class RAS_CLIENT
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{
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private:
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HANDLE m_hRegTimer;
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HANDLE m_hUnRegTimer;
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HANDLE m_hRegTTLTimer;
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PH323_ALIASNAMES m_pAliasList;//list of all the aliases registered with this list
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SOCKET m_Socket;
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CRITICAL_SECTION m_CriticalSection;
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RAS_REGISTER_STATE m_RegisterState;
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DWORD m_IoRefCount;
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RAS_CLIENT_STATE m_dwState;
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LIST_ENTRY m_sendFreeList;
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LIST_ENTRY m_sendPendingList;
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DWORD m_dwSendFreeLen;
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SOCKADDR_IN m_GKAddress;
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SOCKADDR_IN m_sockAddr;
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TransportAddress m_transportAddress;
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RAS_RECV_CONTEXT m_recvOverlapped;
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WORD m_lastRegisterSeqNum;
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WORD m_wTTLSeqNumber;
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WORD m_UnRegisterSeqNum;
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WORD m_wRASSeqNum;
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DWORD m_dwRegRetryCount;
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DWORD m_dwUnRegRetryCount;
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DWORD m_dwCallsInProgress;
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ENDPOINT_ID m_RASEndpointID;
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ASN1_CODER_INFO m_ASNCoderInfo;
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PENDINGURQ m_PendingURQ;
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DWORD m_dwRegTimeToLive;
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EXPIRE_CONTEXT* m_pRRQExpireContext;
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EXPIRE_CONTEXT* m_pURQExpireContext;
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LIST_ENTRY m_aliasChangeRequestList;
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RAS_SEND_CONTEXT *AllocSendBuffer();
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void FreeSendBuffer( RAS_SEND_CONTEXT * pBuffer );
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void OnInfoRequest( InfoRequest * IRQ );
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void ProcessRasMessage(IN RasMessage *rasMessage );
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void OnUnregistrationConfirm( IN UnregistrationConfirm *UCF );
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void OnUnregistrationReject( IN UnregistrationReject *URJ );
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void OnRegistrationReject( IN RegistrationReject * RRJ );
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void OnRegistrationConfirm( IN RegistrationConfirm * RCF );
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BOOL InitializeIo();
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BOOL IssueRecv();
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int TermASNCoder(void);
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int InitASNCoder(void);
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BOOL SendUCF( WORD seqNumber );
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BOOL SendURJ( WORD seqNumber, DWORD dwReason );
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void OnUnregistrationRequest( IN UnregistrationRequest *URQ );
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BOOL FreeSendList( PLIST_ENTRY pListHead );
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BOOL InitializeTTLTimer( IN RegistrationConfirm * RCF );
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HRESULT SendInfoRequestResponse(
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IN SOCKADDR_IN * RasAddress,
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IN USHORT SequenceNumber,
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IN InfoRequestResponse_perCallInfo * CallInfoList);
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HRESULT EncodeSendMessage(
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IN RasMessage * rasMessage );
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public:
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RAS_CLIENT();
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~RAS_CLIENT();
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void Lock()
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{
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H323DBG((DEBUG_LEVEL_TRACE, "wait on RAS client lock:%p.", this ));
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EnterCriticalSection( &m_CriticalSection );
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H323DBG((DEBUG_LEVEL_TRACE, "RAS client locked: %p.", this ));
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}
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void Unlock()
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{
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LeaveCriticalSection( &m_CriticalSection );
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H323DBG((DEBUG_LEVEL_TRACE, "RAS client unlocked: %p.", this ));
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}
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WORD GetNextSeqNum()
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{
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WORD wSeqNum;
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Lock();
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wSeqNum = ++m_wRASSeqNum;
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if( wSeqNum == 0 )
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wSeqNum = ++m_wRASSeqNum;
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Unlock();
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return wSeqNum;
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}
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RAS_REGISTER_STATE GetRegState()
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{
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return m_RegisterState;
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}
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HRESULT GetEndpointID (
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OUT ASN1char16string_t * ReturnEndpointID);
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HRESULT GetLocalAddress (
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OUT SOCKADDR_IN * ReturnSocketAddress)
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{
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HRESULT hr;
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Lock();
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if (m_RegisterState == RAS_REGISTER_STATE_REGISTERED)
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{
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*ReturnSocketAddress = m_sockAddr;
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hr = S_OK;
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}
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else
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{
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hr = E_FAIL;
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}
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Unlock();
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return hr;
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}
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PH323_ALIASNAMES
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GetRegisteredAliasList()
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{
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return m_pAliasList;
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}
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BOOL Initialize( SOCKADDR_IN* psaGKAddr );
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void Shutdown();
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static void NTAPI RegExpiredCallback( PVOID dwParam1, BOOLEAN bTimer );
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static void NTAPI UnregExpiredCallback( PVOID dwParam1, BOOLEAN bTimer );
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static void NTAPI TTLExpiredCallback( IN PVOID dwParam1, IN BOOLEAN bTimer );
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BOOL SendRRQ( IN long seqNumber, IN PALIASCHANGE_REQUEST pAliasList );
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BOOL SendURQ( long seqNumber, EndpointIdentifier * pEndpointID );
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void RegExpired( WORD seqNumber );
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void UnregExpired( WORD seqNumber );
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void TTLExpired();
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static void NTAPI IoCompletionCallback(IN DWORD dwStatus, IN DWORD cbTransferred,
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IN LPOVERLAPPED pOverlapped );
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void OnSendComplete( IN DWORD dwStatus, RAS_SEND_CONTEXT *pOverlappedSend );
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void OnRecvComplete( IN DWORD dwStatus, RAS_RECV_CONTEXT * pOverlappedRecv );
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void HandleRegistryChange();
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BOOL IssueSend( RasMessage * pRasMessage )
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{
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return EncodeSendMessage (pRasMessage) == S_OK;
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}
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};
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void
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HandleRASCallMessage(
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IN RasMessage *pRasMessage
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);
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HRESULT RasStart (void);
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void RasStop (void);
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HRESULT RasSetAliasList (
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IN AliasAddress * AliasArray,
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IN DWORD Count);
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BOOL RasIsRegistered (void);
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HRESULT RasGetLocalAddress (
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OUT SOCKADDR_IN * ReturnLocalAddress);
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USHORT RasAllocSequenceNumber (void);
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HRESULT RasGetEndpointID (
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OUT EndpointIdentifier * ReturnEndpointID);
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HRESULT RasEncodeSendMessage (
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IN RasMessage * RasMessage);
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PH323_ALIASNAMES RASGetRegisteredAliasList();
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void RasHandleRegistryChange();
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#endif //_RAS_H_
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