139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
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/* Socket.h
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*
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* Copyright (c) 1996 by Microsoft Corporation
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*
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* Abstract:
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* This is the WinSock interface to a socket. It can create a
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* connection with another machine, transmit and receive data, and shut
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* down the socket when it is finished.
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*
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*/
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#ifndef _SOCKET_
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#define _SOCKET_
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#include "databeam.h"
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extern "C"
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{
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#include "t120.h"
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#include "winsock2.h"
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}
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#include "tprtsec.h"
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/* States that the socket can be in */
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typedef enum
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{
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NOT_CONNECTED,
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WAITING_FOR_CONNECTION,
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SOCKET_CONNECTED,
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X224_CONNECTED,
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WAITING_FOR_DISCONNECT
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} SocketState;
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/* Security states that the socket can be in */
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typedef enum
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{
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SC_UNDETERMINED,
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SC_SECURE,
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SC_NONSECURE
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} SecurityState;
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#define MAXIMUM_IP_ADDRESS_SIZE 32
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/*
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** This is the port number specified by IMTC
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*/
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#define TCP_PORT_NUMBER 1503
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typedef enum {
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READ_HEADER,
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READ_DATA,
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DISCONNECT_REQUEST, /* There are dependencies on this order */
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CONNECTION_CONFIRM,
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CONNECTION_REQUEST,
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DATA_READY
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} ReadState;
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#define WM_SOCKET_NOTIFICATION (WM_APP)
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#define WM_SECURE_SOCKET_NOTIFICATION (WM_APP+1)
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#define WM_PLUGGABLE_X224 (WM_APP+2)
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#define WM_PLUGGABLE_PSTN (WM_APP+3)
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typedef struct _Security_Buffer_Info {
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LPBYTE lpBuffer;
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UINT uiLength;
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} Security_Buffer_Info;
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class CSocket : public CRefCount
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{
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public:
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CSocket(BOOL *, TransportConnection, PSecurityContext);
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~CSocket(void);
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void FreeTransportBuffer(void);
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public:
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X224_DATA_PACKET X224_Header;
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/* global variables */
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// SOCKET Socket_Number;
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SocketState State;
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SecurityState SecState;
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PSecurityContext pSC;
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UINT Max_Packet_Length;
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Char Remote_Address[MAXIMUM_IP_ADDRESS_SIZE];
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/* recv state variables */
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UINT Current_Length;
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PUChar Data_Indication_Buffer;
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UINT Data_Indication_Length;
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ReadState Read_State;
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UINT X224_Length;
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BOOL bSpaceAllocated;
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PMemory Data_Memory;
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/* send state variables */
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union {
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PDataPacket pUnfinishedPacket;
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Security_Buffer_Info sbiBufferInfo;
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} Retry_Info;
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BOOL fExtendedX224;
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BOOL fIncomingSecure;
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// plugable transport
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TransportConnection XprtConn;
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};
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typedef CSocket *PSocket;
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class CSocketList : public CList
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{
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DEFINE_CLIST(CSocketList, PSocket)
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void SafeAppend(PSocket);
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BOOL SafeRemove(PSocket);
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PSocket FindByTransportConnection(TransportConnection, BOOL fNoAddRef = FALSE);
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PSocket RemoveByTransportConnection(TransportConnection);
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};
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extern CSocketList *g_pSocketList;
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/* Function prototypes */
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PSocket newSocket(TransportConnection, PSecurityContext);
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PSocket newPluggableSocket(TransportConnection);
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PSocket newSocketEx(TransportConnection, PSecurityContext);
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void freeSocket(PSocket, TransportConnection);
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void freeListenSocket(TransportConnection);
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void freePluggableSocket(PSocket);
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void freeSocketEx(PSocket, TransportConnection /* listen_socket_number */);
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SOCKET CreateAndConfigureListenSocket (VOID);
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#endif /* _SOCKET_ */
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