189 lines
5.3 KiB
C
189 lines
5.3 KiB
C
/*************************************************************************
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* icadata.c
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*
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* This module declares global data for Termdd
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*
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* Copyright (C) 1997-1999 Microsoft Corp.
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*************************************************************************/
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/*
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* Includes
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*/
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#include <precomp.h>
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#pragma hdrstop
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PDEVICE_OBJECT IcaDeviceObject;
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PDEVICE_OBJECT MouDeviceObject = NULL;
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PDEVICE_OBJECT KbdDeviceObject = NULL;
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BOOLEAN PortDriverInitialized;
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KSPIN_LOCK IcaSpinLock;
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KSPIN_LOCK IcaTraceSpinLock;
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KSPIN_LOCK IcaStackListSpinLock;
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PERESOURCE IcaReconnectResource;
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PERESOURCE IcaTraceResource;
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PERESOURCE IcaSdLoadResource;
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LIST_ENTRY IcaSdLoadListHead;
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LIST_ENTRY IcaTdHandleList;
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LIST_ENTRY IcaFreeOutBufHead[NumOutBufPools];
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LIST_ENTRY IcaStackListHead;
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ULONG IcaTotalNumOfStacks;
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PLIST_ENTRY IcaNextStack;
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PKEVENT pIcaKeepAliveEvent;
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PKTHREAD pKeepAliveThreadObject;
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HANDLE g_TermServProcessID=NULL;
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unsigned MaxOutBufMdlOverhead;
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BOOLEAN gCapture = TRUE;
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// Used by OutBuf alloc code to map a bit range from the alloc size
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// (requested alloc size + header sizes) into a particular buffer pool.
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// We use a 512-byte granularity, but alloc sizes that are various multiples
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// of 512 bytes, to correspond with various protocol typical allocation sizes.
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const unsigned char OutBufPoolMapping[1 << NumAllocSigBits] =
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{
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// Index Binary AllocRange Pool PoolAllocSize
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0, // 0 0000 0..511 0 1024
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0, // 1 0001 512..1023 0 1024
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1, // 2 0010 1024..1535 1 1536
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2, // 3 0011 1536..2047 2 2048
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3, // 4 0100 2048..2559 3 2560
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4, // 5 0101 2560..3071 4 8192
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4, // 6 0110 3072..3583 4 8192
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4, // 7 0111 3584..4095 4 8192
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4, // 8 1000 4096..4607 4 8192
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4, // 9 1001 4608..5119 4 8192
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4, // 10 1010 5120..5631 4 8192
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4, // 11 1011 5632..6143 4 8192
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4, // 12 1100 6144..6655 4 8192
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4, // 13 1101 6656..7167 4 8192
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4, // 14 1110 7168..7679 4 8192
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4, // 15 1111 7680..8191 4 8192
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};
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// After mapping we have a pool number and need to know the size to alloc.
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const unsigned OutBufPoolAllocSizes[NumOutBufPools] =
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{
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1024, 1536, 2048, 2560, 8192
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};
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FAST_IO_DISPATCH IcaFastIoDispatch;
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PEPROCESS IcaSystemProcess;
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CCHAR IcaIrpStackSize = ICA_DEFAULT_IRP_STACK_SIZE;
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CCHAR IcaPriorityBoost = ICA_DEFAULT_PRIORITY_BOOST;
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TERMSRV_SYSTEM_PARAMS SysParams =
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{
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DEFAULT_MOUSE_THROTTLE_SIZE,
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DEFAULT_KEYBOARD_THROTTLE_SIZE,
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};
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#ifdef notdef
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FAST_IO_DISPATCH IcaFastIoDispatch =
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{
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11, // SizeOfFastIoDispatch
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NULL, // FastIoCheckIfPossible
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IcaFastIoRead, // FastIoRead
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IcaFastIoWrite, // FastIoWrite
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NULL, // FastIoQueryBasicInfo
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NULL, // FastIoQueryStandardInfo
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NULL, // FastIoLock
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NULL, // FastIoUnlockSingle
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NULL, // FastIoUnlockAll
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NULL, // FastIoUnlockAllByKey
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IcaFastIoDeviceControl // FastIoDeviceControl
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};
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#endif
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#if DBG
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ULONG IcaLocksAcquired = 0;
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#endif
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BOOLEAN
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IcaInitializeData (
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VOID
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)
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{
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int i, j;
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PAGED_CODE( );
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#if DBG
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IcaInitializeDebugData( );
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#endif
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//
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// Initialize global lists.
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//
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InitializeListHead( &IcaSdLoadListHead );
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InitializeListHead( &IcaStackListHead );
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IcaTotalNumOfStacks = 0;
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IcaNextStack = &IcaStackListHead;
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pKeepAliveThreadObject = NULL;
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for ( i = 0; i < NumOutBufPools; i++ )
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InitializeListHead( &IcaFreeOutBufHead[i] );
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//
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// Initialize global spin locks and resources used by ICA.
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//
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KeInitializeSpinLock( &IcaSpinLock );
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KeInitializeSpinLock( &IcaTraceSpinLock );
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KeInitializeSpinLock( &IcaStackListSpinLock );
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IcaInitializeHandleTable();
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IcaReconnectResource = ICA_ALLOCATE_POOL( NonPagedPool, sizeof(*IcaReconnectResource) );
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if ( IcaReconnectResource == NULL ) {
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return FALSE;
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}
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ExInitializeResourceLite( IcaReconnectResource );
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IcaSdLoadResource = ICA_ALLOCATE_POOL( NonPagedPool, sizeof(*IcaSdLoadResource) );
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if ( IcaSdLoadResource == NULL ) {
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return FALSE;
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}
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ExInitializeResourceLite( IcaSdLoadResource );
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IcaTraceResource = ICA_ALLOCATE_POOL( NonPagedPool, sizeof(*IcaTraceResource) );
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if ( IcaTraceResource == NULL ) {
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return FALSE;
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}
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ExInitializeResourceLite( IcaTraceResource );
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pIcaKeepAliveEvent = ICA_ALLOCATE_POOL(NonPagedPool, sizeof(KEVENT));
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if ( pIcaKeepAliveEvent != NULL ) {
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KeInitializeEvent(pIcaKeepAliveEvent, NotificationEvent, FALSE);
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}
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else {
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return FALSE;
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}
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// Used by OutBuf alloc code for determining max overhead of OutBuf info
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// for the default max size allocation.
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MaxOutBufMdlOverhead = (unsigned)MmSizeOfMdl((PVOID)(PAGE_SIZE - 1),
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MaxOutBufAlloc);
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return TRUE;
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}
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