146 lines
3.7 KiB
C
146 lines
3.7 KiB
C
/* (C) 1997 Microsoft Corp.
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*
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* file : MCSMUX.h
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* author : Erik Mavrinac
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*
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* description: MCSMUX API types and definitions.
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*/
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#include "MCS.h"
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#include "MCSIoctl.h"
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#include "Trace.h"
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#include "slist.h"
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#include "tshrutil.h"
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/*
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* Defines
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*/
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// Memory alloc and copy functions.
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#define Malloc(size) TSHeapAlloc(HEAP_ZERO_MEMORY, size, TS_HTAG_MCSMUX_ALL)
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#define Free(ptr) TSHeapFree(ptr)
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#define MemCpy(dest, src, len) memcpy((dest), (src), (len))
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// Code common to all entry points except MCSInitialized(), we don't want it
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// around in retail builds.
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#if DBG
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#define CheckInitialized(funcname) \
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if (!g_bInitialized) { \
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ErrOut(funcname " called when MCS not initialized"); \
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return MCS_NOT_INITIALIZED; \
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}
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#else
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#define CheckInitialized(funcname)
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#endif
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// Must be as large as the largest MCS node controller indication/confirm
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// size sent up from PDMCS.
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//TODO FUTURE: Will need to change if we support SendData indications to user
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// mode.
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#define DefaultInputBufSize sizeof(ConnectProviderIndicationIoctl)
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/*
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* Types
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*/
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// Forward reference.
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typedef struct _Domain Domain;
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typedef struct {
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Domain *pDomain;
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ConnectionHandle hConnKernel;
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} Connection;
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typedef enum
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{
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Dom_Unconnected, // Initial state.
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Dom_Connected, // Up-and-running state.
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Dom_PendingCPResponse, // Waiting for ConnectProvResponse.
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Dom_Rejected, // Rejected during ConnectProvInd.
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} DomainState;
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typedef struct _Domain
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{
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LONG RefCount;
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// Locks access to this struct.
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CRITICAL_SECTION csLock;
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#if MCS_Future
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// Selector. This is determined by MCSMUX to be unique across the system.
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// Not currently exported to node controller, may be in the future.
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unsigned SelLen;
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unsigned char Sel[MaxDomainSelectorLength];
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#endif
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// ICA-related bindings.
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HANDLE hIca;
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HANDLE hIcaStack;
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HANDLE hIcaT120Channel;
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void *NCUserDefined;
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// Domain-specific information.
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unsigned bDeleteDomainCalled :1;
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unsigned bPortDisconnected :1;
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DomainState State;
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DomainParameters DomParams;
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// IoPort required member.
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OVERLAPPED Overlapped;
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// TODO FUTURE: This is for a hack for single-connection system,
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// get rid of it by implementing Connection objects.
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HANDLE hConn;
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//TODO FUTURE: Connection objects will need to be separate allocations
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// for future systems with more than one connection.
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Connection MainConn;
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// Domain IOPort receive buffer.
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BYTE InputBuf[DefaultInputBufSize];
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} Domain;
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typedef enum {
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User_Attached,
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User_AttachConfirmPending,
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} UserState;
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typedef struct {
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MCSUserCallback Callback;
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MCSSendDataCallback SDCallback;
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void *UserDefined;
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UserState State;
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UserHandle hUserKernel; // Returned from kernel mode.
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UserID UserID; // Returned from kernel mode.
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Domain *pDomain;
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SList JoinedChannelList;
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unsigned MaxSendSize;
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} UserInformation;
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// Contains little info, this is used as a guard against bluescreens --
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// if bad hChannel is presented a user-mode fault will occur.
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typedef struct
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{
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ChannelHandle hChannelKernel;
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ChannelID ChannelID;
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} MCSChannel;
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/*
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* Globals
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*/
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extern BOOL g_bInitialized; // Overall DLL initialization status.
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extern CRITICAL_SECTION g_csGlobalListLock;
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extern SList g_DomainList; // List of active domains.
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extern SList g_hUserList; // Maps hUsers to domains.
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extern SList g_hConnList; // Maps hConnections to domains.
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