534 lines
12 KiB
C
534 lines
12 KiB
C
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/*++
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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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|
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BOOL
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|
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ApplyGlobalFlagChanges(
|
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|
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BOOL fInit,
|
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|
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HWND hDlg
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|
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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) {
|
||
|
|
Status = NtQuerySystemInformation(SystemFlagsInformation,
|
||
|
|
&SystemInformation,
|
||
|
|
sizeof(SystemInformation),
|
||
|
|
NULL);
|
||
|
|
if (!NT_SUCCESS(Status)) {
|
||
|
|
CHAR Buffer[128];
|
||
|
|
|
||
|
|
sprintf(Buffer,
|
||
|
|
"NtQuerySystemInformation failed (%08lx)\n",
|
||
|
|
Status);
|
||
|
|
MessageBox(NULL,Buffer,TEXT("Horrible Disaster"),MB_OK);
|
||
|
|
ExitProcess(0);
|
||
|
|
} else {
|
||
|
|
for (iBit = 0; iBit < 32; iBit++) {
|
||
|
|
CheckDlgButton(hDlg,
|
||
|
|
GLOBAL_FLAG_ID + iBit,
|
||
|
|
(SystemInformation.Flags & (1 << iBit)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
SystemInformation.Flags = 0;
|
||
|
|
for (iBit = 0; iBit < 32; iBit++) {
|
||
|
|
if (IsDlgButtonChecked(hDlg, GLOBAL_FLAG_ID + iBit)) {
|
||
|
|
SystemInformation.Flags |= (1 << iBit);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//
|
||
|
|
// Attempt to enable the load driver privilege to
|
||
|
|
// allow setting the DPC behavior.
|
||
|
|
//
|
||
|
|
RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
|
||
|
|
TRUE,
|
||
|
|
FALSE,
|
||
|
|
&Enabled);
|
||
|
|
Status = NtSetSystemInformation(SystemFlagsInformation,
|
||
|
|
&SystemInformation,
|
||
|
|
sizeof(SystemInformation));
|
||
|
|
|
||
|
|
RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
|
||
|
|
Enabled,
|
||
|
|
FALSE,
|
||
|
|
&Enabled);
|
||
|
|
|
||
|
|
if (!NT_SUCCESS(Status)) {
|
||
|
|
CHAR Buffer[128];
|
||
|
|
|
||
|
|
sprintf(Buffer,
|
||
|
|
"SetSystemInformationFailed (%08lx)\nYou probably do not have debug privileges",
|
||
|
|
Status);
|
||
|
|
MessageBox(NULL,Buffer,TEXT("Oops"),MB_OK);
|
||
|
|
}
|
||
|
|
if (GlobalFlagUpdateRegistry.NewValue) {
|
||
|
|
HKEY Key;
|
||
|
|
LONG Result;
|
||
|
|
DWORD Disposition;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Update the Value in the registry
|
||
|
|
//
|
||
|
|
if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
|
||
|
|
TEXT("SYSTEM\\CurrentControlSet\\Control\\Session Manager"),
|
||
|
|
0L,
|
||
|
|
NULL,
|
||
|
|
0L,
|
||
|
|
KEY_SET_VALUE,
|
||
|
|
NULL,
|
||
|
|
&Key,
|
||
|
|
&Disposition) != ERROR_SUCCESS) {
|
||
|
|
CHAR Buffer[128];
|
||
|
|
|
||
|
|
sprintf(Buffer,
|
||
|
|
"RegCreateKey for NtGlobalFlag failed (%d)\nYou probably are Not Authorized.",
|
||
|
|
GetLastError());
|
||
|
|
MessageBox(NULL,Buffer,TEXT("Oops"),MB_OK);
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
RegSetValueEx(Key,
|
||
|
|
"GlobalFlag",
|
||
|
|
0,
|
||
|
|
REG_DWORD,
|
||
|
|
(LPBYTE)&SystemInformation.Flags,
|
||
|
|
sizeof(SystemInformation.Flags));
|
||
|
|
|
||
|
|
SendMessage(GetParent(hDlg),
|
||
|
|
PSM_REBOOTSYSTEM,
|
||
|
|
0,
|
||
|
|
0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
|