534 lines
12 KiB
C
534 lines
12 KiB
C
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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kerntwk.c
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Abstract:
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Kernel Tweaker program for setting various kernel parameters
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Author:
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John Vert (jvert) 20-Feb-1995
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Revision History:
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--*/
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#include "nt.h"
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#include "ntrtl.h"
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#include "nturtl.h"
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#include <windows.h>
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#include <commctrl.h>
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#include "dialogs.h"
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#include "stdio.h"
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#include "twkeng.h"
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//
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// Local function prototypes
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//
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BOOL
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SaveToRegistry(
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VOID
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);
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VOID
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UpdateFromRegistry(
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VOID
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);
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BOOL
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ApplyDpcChanges(
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BOOL fInit,
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HWND hDlg
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);
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BOOL
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ApplyGlobalFlagChanges(
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BOOL fInit,
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HWND hDlg
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);
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//
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// Knobs
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//
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KNOB MaximumDpcQueueDepth =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Kernel"),
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TEXT("MaximumDpcQueueDepth"),
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DPC_MAX_QUEUE_DEPTH,
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0,
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4,
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0
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};
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KNOB MinimumDpcRate =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Kernel"),
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TEXT("MinimumDpcRate"),
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DPC_MIN_RATE,
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0,
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3,
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0
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};
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KNOB AdjustDpcThreshold =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Kernel"),
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TEXT("AdjustDpcThreshold"),
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DPC_ADJUST_THRESHOLD,
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0,
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50,
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0
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};
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KNOB IdealDpcRate =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Kernel"),
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TEXT("IdealDpcRate"),
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DPC_IDEAL_RATE,
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0,
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50,
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0
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};
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KNOB DpcUpdateRegistry =
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{
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NULL,
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NULL,
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NULL,
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DPC_UPDATE_REGISTRY,
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0,
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0,
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0
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};
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KNOB GlobalFlagUpdateRegistry =
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{
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NULL,
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NULL,
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NULL,
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GLOBAL_FLAG_UPDATE_REGISTRY,
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0,
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0,
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0
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};
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KNOB PagedPoolQuota =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("PagedPoolQuota"),
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MM_PAGED_QUOTA,
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0,
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0,
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0
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};
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KNOB NonPagedPoolQuota =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("NonPagedPoolQuota"),
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MM_NONPAGED_QUOTA,
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0,
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0,
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0
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};
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KNOB PagingFileQuota =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("PagingFileQuota"),
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MM_PAGING_FILE_QUOTA,
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0,
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0,
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0
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};
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KNOB PagedPoolSize =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("PagedPoolSize"),
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MM_PAGED_SIZE,
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0,
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0,
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0
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};
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KNOB NonPagedPoolSize =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("NonPagedPoolSize"),
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MM_NONPAGED_SIZE,
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0,
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0,
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0
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};
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KNOB SystemPages =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("SystemPages"),
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MM_SYSTEM_PAGES,
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0,
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0,
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0
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};
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KNOB SecondLevelDataCache =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("SecondLevelDataCache"),
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MM_L2_CACHE_SIZE,
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0,
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0,
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0
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};
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KNOB LargeSystemCache =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management"),
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TEXT("LargeSystemCache"),
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MM_LARGE_CACHE,
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0,
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0,
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0
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};
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KNOB NtfsDisable8dot3 =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\FileSystem"),
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TEXT("NtfsDisable8dot3NameCreation"),
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FS_NTFS_DISABLE_SHORTNAME,
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0,
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0,
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0
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};
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KNOB FatWin31Compatible =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\FileSystem"),
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TEXT("Win31FileSystem"),
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FS_FAT_WIN_31,
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0,
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0,
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0
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};
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KNOB Win95Extensions =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\FileSystem"),
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TEXT("Win95TruncatedExtensions"),
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FS_WIN95_EXTENSIONS,
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0,
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0,
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0
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};
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KNOB AdditionalCriticalWorkerThreads =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Executive"),
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TEXT("AdditionalCriticalWorkerThreads"),
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FS_CRITICAL_WORKERS,
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0,
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0,
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0
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};
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KNOB AdditionalDelayedWorkerThreads =
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{
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HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Session Manager\\Executive"),
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TEXT("AdditionalDelayedWorkerThreads"),
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FS_DELAYED_WORKERS,
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0,
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0,
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0
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};
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#include "sockpage.h"
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#include "tcppage.h"
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//
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// Pages
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//
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TWEAK_PAGE DpcPage =
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{
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MAKEINTRESOURCE(DPC_BEHAVIOR_DLG),
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ApplyDpcChanges,
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{
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&MaximumDpcQueueDepth,
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&MinimumDpcRate,
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&AdjustDpcThreshold,
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&IdealDpcRate,
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&DpcUpdateRegistry,
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NULL
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}
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};
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TWEAK_PAGE MmPage =
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{
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MAKEINTRESOURCE(MM_DLG),
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NULL,
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{
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&PagedPoolQuota,
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&NonPagedPoolQuota,
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&PagingFileQuota,
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&PagedPoolSize,
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&NonPagedPoolSize,
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&SystemPages,
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&SecondLevelDataCache,
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&LargeSystemCache,
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NULL
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}
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};
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TWEAK_PAGE GlobalFlagPage =
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{
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MAKEINTRESOURCE(GLOBAL_FLAG_DLG),
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ApplyGlobalFlagChanges,
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{
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&GlobalFlagUpdateRegistry,
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NULL
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}
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};
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TWEAK_PAGE FilesystemPage =
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{
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MAKEINTRESOURCE(FILESYSTEM_DLG),
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NULL,
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{
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&NtfsDisable8dot3,
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&FatWin31Compatible,
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&AdditionalCriticalWorkerThreads,
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&AdditionalDelayedWorkerThreads,
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NULL
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}
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};
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int
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WINAPI
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WinMain(
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HINSTANCE hInstance, // handle of current instance
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HINSTANCE hPrevInstance, // handle of previous instance
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LPSTR lpszCmdLine, // address of command line
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int nCmdShow // show state of window
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)
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{
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PTWEAK_PAGE TweakPages[] = {
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&DpcPage,
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&MmPage,
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&GlobalFlagPage,
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&FilesystemPage,
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&WinsockPage,
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&TcpPage
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};
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return(TweakSheet(sizeof(TweakPages)/sizeof(PTWEAK_PAGE),TweakPages));
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}
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BOOL
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ApplyDpcChanges(
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BOOL fInit,
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HWND hDlg
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)
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{
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SYSTEM_DPC_BEHAVIOR_INFORMATION DpcBehavior;
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BOOLEAN Enabled;
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NTSTATUS Status;
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if (fInit) {
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Status = NtQuerySystemInformation(SystemDpcBehaviorInformation,
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&DpcBehavior,
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sizeof(DpcBehavior),
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NULL);
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if (!NT_SUCCESS(Status)) {
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CHAR Buffer[128];
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sprintf(Buffer,
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"NtQuerySystemInformation failed (%08lx)\n"
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"You probably need a newer build.\n"
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"Use information from the registry?",
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Status);
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if (MessageBox(NULL,Buffer,TEXT("Horrible Disaster"),MB_YESNO) == IDYES) {
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return(FALSE);
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} else {
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ExitProcess(0);
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}
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} else {
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MaximumDpcQueueDepth.CurrentValue = DpcBehavior.DpcQueueDepth;
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MinimumDpcRate.CurrentValue = DpcBehavior.MinimumDpcRate;
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AdjustDpcThreshold.CurrentValue = DpcBehavior.AdjustDpcThreshold;
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IdealDpcRate.CurrentValue = DpcBehavior.IdealDpcRate;
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}
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} else {
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DpcBehavior.DpcQueueDepth = MaximumDpcQueueDepth.NewValue;
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DpcBehavior.MinimumDpcRate = MinimumDpcRate.NewValue;
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DpcBehavior.AdjustDpcThreshold = AdjustDpcThreshold.NewValue;
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DpcBehavior.IdealDpcRate = IdealDpcRate.NewValue;
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//
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// Attempt to enable the load driver privilege to
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// allow setting the DPC behavior.
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//
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RtlAdjustPrivilege(SE_LOAD_DRIVER_PRIVILEGE,
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TRUE,
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FALSE,
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&Enabled);
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Status = NtSetSystemInformation(SystemDpcBehaviorInformation,
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&DpcBehavior,
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sizeof(DpcBehavior));
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RtlAdjustPrivilege(SE_LOAD_DRIVER_PRIVILEGE,
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Enabled,
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FALSE,
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&Enabled);
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if (!NT_SUCCESS(Status)) {
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CHAR Buffer[128];
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sprintf(Buffer,
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"NtSetSystemInformation failed, status %08lx",
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Status);
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MessageBox(NULL,Buffer,TEXT("Oops"),MB_OK);
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return(FALSE);
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}
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if (DpcUpdateRegistry.NewValue) {
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//
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// Let the common routine update the values in the registry
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//
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return(FALSE);
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}
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}
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return(TRUE);
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}
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BOOL
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ApplyGlobalFlagChanges(
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BOOL fInit,
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HWND hDlg
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)
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{
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BOOLEAN Enabled;
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NTSTATUS Status;
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SYSTEM_FLAGS_INFORMATION SystemInformation;
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int iBit;
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if (fInit) {
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Status = NtQuerySystemInformation(SystemFlagsInformation,
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&SystemInformation,
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sizeof(SystemInformation),
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NULL);
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if (!NT_SUCCESS(Status)) {
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CHAR Buffer[128];
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sprintf(Buffer,
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"NtQuerySystemInformation failed (%08lx)\n",
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Status);
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MessageBox(NULL,Buffer,TEXT("Horrible Disaster"),MB_OK);
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ExitProcess(0);
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} else {
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for (iBit = 0; iBit < 32; iBit++) {
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CheckDlgButton(hDlg,
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GLOBAL_FLAG_ID + iBit,
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(SystemInformation.Flags & (1 << iBit)));
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}
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}
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} else {
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SystemInformation.Flags = 0;
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for (iBit = 0; iBit < 32; iBit++) {
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if (IsDlgButtonChecked(hDlg, GLOBAL_FLAG_ID + iBit)) {
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SystemInformation.Flags |= (1 << iBit);
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}
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}
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//
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// Attempt to enable the load driver privilege to
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// allow setting the DPC behavior.
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//
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RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
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TRUE,
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FALSE,
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&Enabled);
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Status = NtSetSystemInformation(SystemFlagsInformation,
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&SystemInformation,
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sizeof(SystemInformation));
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RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
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Enabled,
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FALSE,
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&Enabled);
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if (!NT_SUCCESS(Status)) {
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CHAR Buffer[128];
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sprintf(Buffer,
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"SetSystemInformationFailed (%08lx)\nYou probably do not have debug privileges",
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Status);
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MessageBox(NULL,Buffer,TEXT("Oops"),MB_OK);
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}
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if (GlobalFlagUpdateRegistry.NewValue) {
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HKEY Key;
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LONG Result;
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DWORD Disposition;
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//
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// Update the Value in the registry
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//
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if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
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TEXT("SYSTEM\\CurrentControlSet\\Control\\Session Manager"),
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0L,
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NULL,
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0L,
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KEY_SET_VALUE,
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NULL,
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&Key,
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&Disposition) != ERROR_SUCCESS) {
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CHAR Buffer[128];
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sprintf(Buffer,
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"RegCreateKey for NtGlobalFlag failed (%d)\nYou probably are Not Authorized.",
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GetLastError());
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MessageBox(NULL,Buffer,TEXT("Oops"),MB_OK);
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return(TRUE);
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}
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RegSetValueEx(Key,
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"GlobalFlag",
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0,
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REG_DWORD,
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(LPBYTE)&SystemInformation.Flags,
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sizeof(SystemInformation.Flags));
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SendMessage(GetParent(hDlg),
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PSM_REBOOTSYSTEM,
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0,
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0);
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}
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}
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return(TRUE);
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}
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