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reactos/ntoskrnl/ex/sysinfo.c
Art Yerkes c501d8112c Create a branch for network fixes. 
svn path=/branches/aicom-network-fixes/; revision=34994
2008-08-01 11:32:26 +00:00

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/ex/sysinfo.c
* PURPOSE: System information functions
*
* PROGRAMMERS: David Welch (welch@mcmail.com)
* Aleksey Bragin (aleksey@reactos.org)
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <internal/debug.h>
VOID MmPrintMemoryStatistic(VOID);
FAST_MUTEX ExpEnvironmentLock;
ERESOURCE ExpFirmwareTableResource;
LIST_ENTRY ExpFirmwareTableProviderListHead;
NTSTATUS
NTAPI
ExpQueryModuleInformation(IN PLIST_ENTRY KernelModeList,
IN PLIST_ENTRY UserModeList,
OUT PRTL_PROCESS_MODULES Modules,
IN ULONG Length,
OUT PULONG ReturnLength)
{
NTSTATUS Status = STATUS_SUCCESS;
ULONG RequiredLength;
PRTL_PROCESS_MODULE_INFORMATION ModuleInfo;
PLDR_DATA_TABLE_ENTRY LdrEntry;
ANSI_STRING ModuleName;
ULONG ModuleCount = 0;
PLIST_ENTRY NextEntry;
PCHAR p;
/* Setup defaults */
RequiredLength = FIELD_OFFSET(RTL_PROCESS_MODULES, Modules);
ModuleInfo = &Modules->Modules[0];
/* Loop the kernel list */
NextEntry = KernelModeList->Flink;
while (NextEntry != KernelModeList)
{
/* Get the entry */
LdrEntry = CONTAINING_RECORD(NextEntry,
LDR_DATA_TABLE_ENTRY,
InLoadOrderLinks);
/* Update size and check if we can manage one more entry */
RequiredLength += sizeof(RTL_PROCESS_MODULE_INFORMATION);
if (Length >= RequiredLength)
{
/* Fill it out */
ModuleInfo->MappedBase = NULL;
ModuleInfo->ImageBase = LdrEntry->DllBase;
ModuleInfo->ImageSize = LdrEntry->SizeOfImage;
ModuleInfo->Flags = LdrEntry->Flags;
ModuleInfo->LoadCount = LdrEntry->LoadCount;
ModuleInfo->LoadOrderIndex = (USHORT)ModuleCount;
ModuleInfo->InitOrderIndex = 0;
/* Setup name */
RtlInitEmptyAnsiString(&ModuleName,
ModuleInfo->FullPathName,
sizeof(ModuleInfo->FullPathName));
/* Convert it */
Status = RtlUnicodeStringToAnsiString(&ModuleName,
&LdrEntry->FullDllName,
FALSE);
if ((NT_SUCCESS(Status)) || (Status == STATUS_BUFFER_OVERFLOW))
{
/* Calculate offset to name */
p = ModuleName.Buffer + ModuleName.Length;
while ((p > ModuleName.Buffer) && (*--p))
{
/* Check if we found the separator */
if (*p == OBJ_NAME_PATH_SEPARATOR)
{
/* We did, break out */
p++;
break;
}
}
/* Set the offset */
ModuleInfo->OffsetToFileName = p - ModuleName.Buffer;
}
else
{
/* Return empty name */
ModuleInfo->FullPathName[0] = ANSI_NULL;
ModuleInfo->OffsetToFileName = 0;
}
/* Go to the next module */
ModuleInfo++;
}
else
{
/* Set error code */
Status = STATUS_INFO_LENGTH_MISMATCH;
}
/* Update count and move to next entry */
ModuleCount++;
NextEntry = NextEntry->Flink;
}
/* Check if caller also wanted user modules */
if (UserModeList)
{
/* FIXME: TODO */
DPRINT1("User-mode list not yet supported in ReactOS!\n");
}
/* Update return length */
if (ReturnLength) *ReturnLength = RequiredLength;
/* Validate the length again */
if (Length >= FIELD_OFFSET(RTL_PROCESS_MODULES, Modules))
{
/* Set the final count */
Modules->NumberOfModules = ModuleCount;
}
else
{
/* Otherwise, we failed */
Status = STATUS_INFO_LENGTH_MISMATCH;
}
/* Done */
return Status;
}
/* FUNCTIONS *****************************************************************/
/*
* @implemented
*/
#undef ExGetPreviousMode
KPROCESSOR_MODE
NTAPI
ExGetPreviousMode (VOID)
{
return KeGetPreviousMode();
}
/*
* @implemented
*/
VOID
NTAPI
ExGetCurrentProcessorCpuUsage(PULONG CpuUsage)
{
PKPRCB Prcb;
ULONG TotalTime;
ULONGLONG ScaledIdle;
Prcb = KeGetCurrentPrcb();
ScaledIdle = Prcb->IdleThread->KernelTime * 100;
TotalTime = Prcb->KernelTime + Prcb->UserTime;
if (TotalTime != 0)
*CpuUsage = (ULONG)(100 - (ScaledIdle / TotalTime));
else
*CpuUsage = 0;
}
/*
* @implemented
*/
VOID
NTAPI
ExGetCurrentProcessorCounts(PULONG ThreadKernelTime,
PULONG TotalCpuTime,
PULONG ProcessorNumber)
{
PKPRCB Prcb;
Prcb = KeGetCurrentPrcb();
*ThreadKernelTime = Prcb->KernelTime + Prcb->UserTime;
*TotalCpuTime = Prcb->CurrentThread->KernelTime;
*ProcessorNumber = KeGetCurrentProcessorNumber();
}
/*
* @implemented
*/
BOOLEAN
NTAPI
ExIsProcessorFeaturePresent(IN ULONG ProcessorFeature)
{
/* Quick check to see if it exists at all */
if (ProcessorFeature >= PROCESSOR_FEATURE_MAX) return(FALSE);
/* Return our support for it */
return(SharedUserData->ProcessorFeatures[ProcessorFeature]);
}
/*
* @implemented
*/
BOOLEAN
NTAPI
ExVerifySuite(SUITE_TYPE SuiteType)
{
if (SuiteType == Personal) return TRUE;
return FALSE;
}
NTSTATUS
NTAPI
NtQuerySystemEnvironmentValue (IN PUNICODE_STRING VariableName,
OUT PWSTR ValueBuffer,
IN ULONG ValueBufferLength,
IN OUT PULONG ReturnLength OPTIONAL)
{
ANSI_STRING AName;
UNICODE_STRING WName;
ARC_STATUS Result;
PCH Value;
ANSI_STRING AValue;
UNICODE_STRING WValue;
KPROCESSOR_MODE PreviousMode;
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
if(PreviousMode != KernelMode)
{
_SEH_TRY
{
ProbeForRead(VariableName,
sizeof(UNICODE_STRING),
sizeof(ULONG));
ProbeForWrite(ValueBuffer,
ValueBufferLength,
sizeof(WCHAR));
if(ReturnLength != NULL)
{
ProbeForWriteUlong(ReturnLength);
}
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
if(!NT_SUCCESS(Status))
{
return Status;
}
}
/*
* Copy the name to kernel space if necessary and convert it to ANSI.
*/
Status = ProbeAndCaptureUnicodeString(&WName,
PreviousMode,
VariableName);
if(NT_SUCCESS(Status))
{
/*
* according to ntinternals the SeSystemEnvironmentName privilege is required!
*/
if(!SeSinglePrivilegeCheck(SeSystemEnvironmentPrivilege,
PreviousMode))
{
ReleaseCapturedUnicodeString(&WName,
PreviousMode);
DPRINT1("NtQuerySystemEnvironmentValue: Caller requires the SeSystemEnvironmentPrivilege privilege!\n");
return STATUS_PRIVILEGE_NOT_HELD;
}
/*
* convert the value name to ansi
*/
Status = RtlUnicodeStringToAnsiString(&AName, &WName, TRUE);
ReleaseCapturedUnicodeString(&WName,
PreviousMode);
if(!NT_SUCCESS(Status))
{
return Status;
}
/*
* Create a temporary buffer for the value
*/
Value = ExAllocatePool(NonPagedPool, ValueBufferLength);
if (Value == NULL)
{
RtlFreeAnsiString(&AName);
return STATUS_INSUFFICIENT_RESOURCES;
}
/*
* Get the environment variable
*/
Result = HalGetEnvironmentVariable(AName.Buffer,
(USHORT)ValueBufferLength,
Value);
if(!Result)
{
RtlFreeAnsiString(&AName);
ExFreePool(Value);
return STATUS_UNSUCCESSFUL;
}
/*
* Convert the result to UNICODE, protect with SEH in case the value buffer
* isn't NULL-terminated!
*/
_SEH_TRY
{
RtlInitAnsiString(&AValue, Value);
Status = RtlAnsiStringToUnicodeString(&WValue, &AValue, TRUE);
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
if(NT_SUCCESS(Status))
{
/*
* Copy the result back to the caller.
*/
_SEH_TRY
{
RtlCopyMemory(ValueBuffer, WValue.Buffer, WValue.Length);
ValueBuffer[WValue.Length / sizeof(WCHAR)] = L'\0';
if(ReturnLength != NULL)
{
*ReturnLength = WValue.Length + sizeof(WCHAR);
}
Status = STATUS_SUCCESS;
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
}
/*
* Cleanup allocated resources.
*/
RtlFreeAnsiString(&AName);
ExFreePool(Value);
}
return Status;
}
NTSTATUS NTAPI
NtSetSystemEnvironmentValue (IN PUNICODE_STRING VariableName,
IN PUNICODE_STRING Value)
{
UNICODE_STRING CapturedName, CapturedValue;
ANSI_STRING AName, AValue;
KPROCESSOR_MODE PreviousMode;
NTSTATUS Status;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
/*
* Copy the strings to kernel space if necessary
*/
Status = ProbeAndCaptureUnicodeString(&CapturedName,
PreviousMode,
VariableName);
if(NT_SUCCESS(Status))
{
Status = ProbeAndCaptureUnicodeString(&CapturedValue,
PreviousMode,
Value);
if(NT_SUCCESS(Status))
{
/*
* according to ntinternals the SeSystemEnvironmentName privilege is required!
*/
if(SeSinglePrivilegeCheck(SeSystemEnvironmentPrivilege,
PreviousMode))
{
/*
* convert the strings to ANSI
*/
Status = RtlUnicodeStringToAnsiString(&AName,
&CapturedName,
TRUE);
if(NT_SUCCESS(Status))
{
Status = RtlUnicodeStringToAnsiString(&AValue,
&CapturedValue,
TRUE);
if(NT_SUCCESS(Status))
{
ARC_STATUS Result = HalSetEnvironmentVariable(AName.Buffer,
AValue.Buffer);
Status = (Result ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL);
}
}
}
else
{
DPRINT1("NtSetSystemEnvironmentValue: Caller requires the SeSystemEnvironmentPrivilege privilege!\n");
Status = STATUS_PRIVILEGE_NOT_HELD;
}
ReleaseCapturedUnicodeString(&CapturedValue,
PreviousMode);
}
ReleaseCapturedUnicodeString(&CapturedName,
PreviousMode);
}
return Status;
}
NTSTATUS
NTAPI
NtEnumerateSystemEnvironmentValuesEx(IN ULONG InformationClass,
IN PVOID Buffer,
IN ULONG BufferLength)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
NtQuerySystemEnvironmentValueEx(IN PUNICODE_STRING VariableName,
IN LPGUID VendorGuid,
IN PVOID Value,
IN OUT PULONG ReturnLength,
IN OUT PULONG Attributes)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
NtSetSystemEnvironmentValueEx(IN PUNICODE_STRING VariableName,
IN LPGUID VendorGuid)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
/* --- Query/Set System Information --- */
/*
* NOTE: QSI_DEF(n) and SSI_DEF(n) define _cdecl function symbols
* so the stack is popped only in one place on x86 platform.
*/
#define QSI_USE(n) QSI##n
#define QSI_DEF(n) \
static NTSTATUS QSI_USE(n) (PVOID Buffer, ULONG Size, PULONG ReqSize)
#define SSI_USE(n) SSI##n
#define SSI_DEF(n) \
static NTSTATUS SSI_USE(n) (PVOID Buffer, ULONG Size)
/* Class 0 - Basic Information */
QSI_DEF(SystemBasicInformation)
{
PSYSTEM_BASIC_INFORMATION Sbi
= (PSYSTEM_BASIC_INFORMATION) Buffer;
*ReqSize = sizeof (SYSTEM_BASIC_INFORMATION);
/*
* Check user buffer's size
*/
if (Size != sizeof (SYSTEM_BASIC_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
RtlZeroMemory(Sbi, Size);
Sbi->Reserved = 0;
Sbi->TimerResolution = KeMaximumIncrement;
Sbi->PageSize = PAGE_SIZE;
Sbi->NumberOfPhysicalPages = MmStats.NrTotalPages;
Sbi->LowestPhysicalPageNumber = 0; /* FIXME */
Sbi->HighestPhysicalPageNumber = MmStats.NrTotalPages; /* FIXME */
Sbi->AllocationGranularity = MM_VIRTMEM_GRANULARITY; /* hard coded on Intel? */
Sbi->MinimumUserModeAddress = 0x10000; /* Top of 64k */
Sbi->MaximumUserModeAddress = (ULONG_PTR)MmHighestUserAddress;
Sbi->ActiveProcessorsAffinityMask = KeActiveProcessors;
Sbi->NumberOfProcessors = KeNumberProcessors;
return (STATUS_SUCCESS);
}
/* Class 1 - Processor Information */
QSI_DEF(SystemProcessorInformation)
{
PSYSTEM_PROCESSOR_INFORMATION Spi
= (PSYSTEM_PROCESSOR_INFORMATION) Buffer;
PKPRCB Prcb;
*ReqSize = sizeof (SYSTEM_PROCESSOR_INFORMATION);
/*
* Check user buffer's size
*/
if (Size < sizeof (SYSTEM_PROCESSOR_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
Prcb = KeGetCurrentPrcb();
Spi->ProcessorArchitecture = KeProcessorArchitecture;
Spi->ProcessorLevel = KeProcessorLevel;
Spi->ProcessorRevision = KeProcessorRevision;
Spi->Reserved = 0;
Spi->ProcessorFeatureBits = KeFeatureBits;
DPRINT("Arch %d Level %d Rev 0x%x\n", Spi->ProcessorArchitecture,
Spi->ProcessorLevel, Spi->ProcessorRevision);
return (STATUS_SUCCESS);
}
/* Class 2 - Performance Information */
QSI_DEF(SystemPerformanceInformation)
{
PSYSTEM_PERFORMANCE_INFORMATION Spi
= (PSYSTEM_PERFORMANCE_INFORMATION) Buffer;
PEPROCESS TheIdleProcess;
*ReqSize = sizeof (SYSTEM_PERFORMANCE_INFORMATION);
/*
* Check user buffer's size
*/
if (Size < sizeof (SYSTEM_PERFORMANCE_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
TheIdleProcess = PsIdleProcess;
Spi->IdleProcessTime.QuadPart = TheIdleProcess->Pcb.KernelTime * 100000LL;
Spi->IoReadTransferCount = IoReadTransferCount;
Spi->IoWriteTransferCount = IoWriteTransferCount;
Spi->IoOtherTransferCount = IoOtherTransferCount;
Spi->IoReadOperationCount = IoReadOperationCount;
Spi->IoWriteOperationCount = IoWriteOperationCount;
Spi->IoOtherOperationCount = IoOtherOperationCount;
Spi->AvailablePages = MmStats.NrFreePages;
/*
Add up all the used "Committed" memory + pagefile.
Not sure this is right. 8^\
*/
Spi->CommittedPages = MiMemoryConsumers[MC_PPOOL].PagesUsed +
MiMemoryConsumers[MC_NPPOOL].PagesUsed+
MiMemoryConsumers[MC_CACHE].PagesUsed+
MiMemoryConsumers[MC_USER].PagesUsed+
MiUsedSwapPages;
/*
Add up the full system total + pagefile.
All this make Taskmgr happy but not sure it is the right numbers.
This too, fixes some of GlobalMemoryStatusEx numbers.
*/
Spi->CommitLimit = MmStats.NrTotalPages + MiFreeSwapPages +
MiUsedSwapPages;
Spi->PeakCommitment = 0; /* FIXME */
Spi->PageFaultCount = 0; /* FIXME */
Spi->CopyOnWriteCount = 0; /* FIXME */
Spi->TransitionCount = 0; /* FIXME */
Spi->CacheTransitionCount = 0; /* FIXME */
Spi->DemandZeroCount = 0; /* FIXME */
Spi->PageReadCount = 0; /* FIXME */
Spi->PageReadIoCount = 0; /* FIXME */
Spi->CacheReadCount = 0; /* FIXME */
Spi->CacheIoCount = 0; /* FIXME */
Spi->DirtyPagesWriteCount = 0; /* FIXME */
Spi->DirtyWriteIoCount = 0; /* FIXME */
Spi->MappedPagesWriteCount = 0; /* FIXME */
Spi->MappedWriteIoCount = 0; /* FIXME */
Spi->PagedPoolPages = MiMemoryConsumers[MC_PPOOL].PagesUsed;
Spi->PagedPoolAllocs = 0; /* FIXME */
Spi->PagedPoolFrees = 0; /* FIXME */
Spi->NonPagedPoolPages = MiMemoryConsumers[MC_NPPOOL].PagesUsed;
Spi->NonPagedPoolAllocs = 0; /* FIXME */
Spi->NonPagedPoolFrees = 0; /* FIXME */
Spi->FreeSystemPtes = 0; /* FIXME */
Spi->ResidentSystemCodePage = MmStats.NrSystemPages; /* FIXME */
Spi->TotalSystemDriverPages = 0; /* FIXME */
Spi->TotalSystemCodePages = 0; /* FIXME */
Spi->NonPagedPoolLookasideHits = 0; /* FIXME */
Spi->PagedPoolLookasideHits = 0; /* FIXME */
Spi->Spare3Count = 0; /* FIXME */
Spi->ResidentSystemCachePage = MiMemoryConsumers[MC_CACHE].PagesUsed;
Spi->ResidentPagedPoolPage = MmPagedPoolSize; /* FIXME */
Spi->ResidentSystemDriverPage = 0; /* FIXME */
Spi->CcFastReadNoWait = 0; /* FIXME */
Spi->CcFastReadWait = 0; /* FIXME */
Spi->CcFastReadResourceMiss = 0; /* FIXME */
Spi->CcFastReadNotPossible = 0; /* FIXME */
Spi->CcFastMdlReadNoWait = 0; /* FIXME */
Spi->CcFastMdlReadWait = 0; /* FIXME */
Spi->CcFastMdlReadResourceMiss = 0; /* FIXME */
Spi->CcFastMdlReadNotPossible = 0; /* FIXME */
Spi->CcMapDataNoWait = 0; /* FIXME */
Spi->CcMapDataWait = 0; /* FIXME */
Spi->CcMapDataNoWaitMiss = 0; /* FIXME */
Spi->CcMapDataWaitMiss = 0; /* FIXME */
Spi->CcPinMappedDataCount = 0; /* FIXME */
Spi->CcPinReadNoWait = 0; /* FIXME */
Spi->CcPinReadWait = 0; /* FIXME */
Spi->CcPinReadNoWaitMiss = 0; /* FIXME */
Spi->CcPinReadWaitMiss = 0; /* FIXME */
Spi->CcCopyReadNoWait = 0; /* FIXME */
Spi->CcCopyReadWait = 0; /* FIXME */
Spi->CcCopyReadNoWaitMiss = 0; /* FIXME */
Spi->CcCopyReadWaitMiss = 0; /* FIXME */
Spi->CcMdlReadNoWait = 0; /* FIXME */
Spi->CcMdlReadWait = 0; /* FIXME */
Spi->CcMdlReadNoWaitMiss = 0; /* FIXME */
Spi->CcMdlReadWaitMiss = 0; /* FIXME */
Spi->CcReadAheadIos = 0; /* FIXME */
Spi->CcLazyWriteIos = 0; /* FIXME */
Spi->CcLazyWritePages = 0; /* FIXME */
Spi->CcDataFlushes = 0; /* FIXME */
Spi->CcDataPages = 0; /* FIXME */
Spi->ContextSwitches = 0; /* FIXME */
Spi->FirstLevelTbFills = 0; /* FIXME */
Spi->SecondLevelTbFills = 0; /* FIXME */
Spi->SystemCalls = 0; /* FIXME */
return (STATUS_SUCCESS);
}
/* Class 3 - Time Of Day Information */
QSI_DEF(SystemTimeOfDayInformation)
{
PSYSTEM_TIMEOFDAY_INFORMATION Sti;
LARGE_INTEGER CurrentTime;
Sti = (PSYSTEM_TIMEOFDAY_INFORMATION)Buffer;
*ReqSize = sizeof (SYSTEM_TIMEOFDAY_INFORMATION);
/* Check user buffer's size */
if (Size != sizeof (SYSTEM_TIMEOFDAY_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
KeQuerySystemTime(&CurrentTime);
Sti->BootTime= KeBootTime;
Sti->CurrentTime = CurrentTime;
Sti->TimeZoneBias.QuadPart = ExpTimeZoneBias.QuadPart;
Sti->TimeZoneId = ExpTimeZoneId;
Sti->Reserved = 0;
return STATUS_SUCCESS;
}
/* Class 4 - Path Information */
QSI_DEF(SystemPathInformation)
{
/* FIXME: QSI returns STATUS_BREAKPOINT. Why? */
DPRINT1("NtQuerySystemInformation - SystemPathInformation not implemented\n");
return (STATUS_BREAKPOINT);
}
/* Class 5 - Process Information */
QSI_DEF(SystemProcessInformation)
{
ULONG ovlSize = 0, nThreads;
PEPROCESS pr = NULL, syspr;
unsigned char *pCur;
NTSTATUS Status = STATUS_SUCCESS;
_SEH_TRY
{
/* scan the process list */
PSYSTEM_PROCESS_INFORMATION Spi
= (PSYSTEM_PROCESS_INFORMATION) Buffer;
*ReqSize = sizeof(SYSTEM_PROCESS_INFORMATION);
if (Size < sizeof(SYSTEM_PROCESS_INFORMATION))
{
_SEH_YIELD(return STATUS_INFO_LENGTH_MISMATCH); // in case buffer size is too small
}
RtlZeroMemory(Spi, Size);
syspr = PsIdleProcess;
pr = syspr;
pCur = (unsigned char *)Spi;
do
{
PSYSTEM_PROCESS_INFORMATION SpiCur;
int curSize;
ANSI_STRING imgName;
int inLen=32; // image name len in bytes
PLIST_ENTRY current_entry;
PETHREAD current;
PSYSTEM_THREAD_INFORMATION ThreadInfo;
SpiCur = (PSYSTEM_PROCESS_INFORMATION)pCur;
nThreads = 0;
current_entry = pr->ThreadListHead.Flink;
while (current_entry != &pr->ThreadListHead)
{
nThreads++;
current_entry = current_entry->Flink;
}
// size of the structure for every process
curSize = sizeof(SYSTEM_PROCESS_INFORMATION)+sizeof(SYSTEM_THREAD_INFORMATION)*nThreads;
ovlSize += curSize+inLen;
if (ovlSize > Size)
{
*ReqSize = ovlSize;
ObDereferenceObject(pr);
_SEH_YIELD(return STATUS_INFO_LENGTH_MISMATCH); // in case buffer size is too small
}
// fill system information
SpiCur->NextEntryOffset = curSize+inLen; // relative offset to the beginnnig of the next structure
SpiCur->NumberOfThreads = nThreads;
SpiCur->CreateTime = pr->CreateTime;
SpiCur->UserTime.QuadPart = pr->Pcb.UserTime * 100000LL;
SpiCur->KernelTime.QuadPart = pr->Pcb.KernelTime * 100000LL;
SpiCur->ImageName.Length = strlen(pr->ImageFileName) * sizeof(WCHAR);
SpiCur->ImageName.MaximumLength = (USHORT)inLen;
SpiCur->ImageName.Buffer = (void*)(pCur+curSize);
// copy name to the end of the struct
if(pr != PsIdleProcess)
{
RtlInitAnsiString(&imgName, pr->ImageFileName);
RtlAnsiStringToUnicodeString(&SpiCur->ImageName, &imgName, FALSE);
}
else
{
RtlInitUnicodeString(&SpiCur->ImageName, NULL);
}
SpiCur->BasePriority = pr->Pcb.BasePriority;
SpiCur->UniqueProcessId = pr->UniqueProcessId;
SpiCur->InheritedFromUniqueProcessId = pr->InheritedFromUniqueProcessId;
SpiCur->HandleCount = (pr->ObjectTable ? ObpGetHandleCountByHandleTable(pr->ObjectTable) : 0);
SpiCur->PeakVirtualSize = pr->PeakVirtualSize;
SpiCur->VirtualSize = pr->VirtualSize;
SpiCur->PageFaultCount = pr->Vm.PageFaultCount;
SpiCur->PeakWorkingSetSize = pr->Vm.PeakWorkingSetSize;
SpiCur->WorkingSetSize = pr->Vm.WorkingSetSize;
SpiCur->QuotaPeakPagedPoolUsage = pr->QuotaPeak[0];
SpiCur->QuotaPagedPoolUsage = pr->QuotaUsage[0];
SpiCur->QuotaPeakNonPagedPoolUsage = pr->QuotaPeak[1];
SpiCur->QuotaNonPagedPoolUsage = pr->QuotaUsage[1];
SpiCur->PagefileUsage = pr->QuotaUsage[2];
SpiCur->PeakPagefileUsage = pr->QuotaPeak[2];
SpiCur->PrivatePageCount = pr->CommitCharge;
ThreadInfo = (PSYSTEM_THREAD_INFORMATION)(SpiCur + 1);
current_entry = pr->ThreadListHead.Flink;
while (current_entry != &pr->ThreadListHead)
{
current = CONTAINING_RECORD(current_entry, ETHREAD,
ThreadListEntry);
ThreadInfo->KernelTime.QuadPart = current->Tcb.KernelTime * 100000LL;
ThreadInfo->UserTime.QuadPart = current->Tcb.UserTime * 100000LL;
ThreadInfo->CreateTime.QuadPart = current->CreateTime.QuadPart;
ThreadInfo->WaitTime = current->Tcb.WaitTime;
ThreadInfo->StartAddress = (PVOID) current->StartAddress;
ThreadInfo->ClientId = current->Cid;
ThreadInfo->Priority = current->Tcb.Priority;
ThreadInfo->BasePriority = current->Tcb.BasePriority;
ThreadInfo->ContextSwitches = current->Tcb.ContextSwitches;
ThreadInfo->ThreadState = current->Tcb.State;
ThreadInfo->WaitReason = current->Tcb.WaitReason;
ThreadInfo++;
current_entry = current_entry->Flink;
}
/* Handle idle process entry */
if (pr == PsIdleProcess) pr = NULL;
pr = PsGetNextProcess(pr);
nThreads = 0;
if ((pr == syspr) || (pr == NULL))
{
SpiCur->NextEntryOffset = 0;
break;
}
else
pCur = pCur + curSize + inLen;
} while ((pr != syspr) && (pr != NULL));
if(pr != NULL)
ObDereferenceObject(pr);
Status = STATUS_SUCCESS;
}
_SEH_HANDLE
{
if(pr != NULL)
ObDereferenceObject(pr);
Status = _SEH_GetExceptionCode();
}
_SEH_END
*ReqSize = ovlSize;
return Status;
}
/* Class 6 - Call Count Information */
QSI_DEF(SystemCallCountInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemCallCountInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 7 - Device Information */
QSI_DEF(SystemDeviceInformation)
{
PSYSTEM_DEVICE_INFORMATION Sdi
= (PSYSTEM_DEVICE_INFORMATION) Buffer;
PCONFIGURATION_INFORMATION ConfigInfo;
*ReqSize = sizeof (SYSTEM_DEVICE_INFORMATION);
/*
* Check user buffer's size
*/
if (Size < sizeof (SYSTEM_DEVICE_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
ConfigInfo = IoGetConfigurationInformation ();
Sdi->NumberOfDisks = ConfigInfo->DiskCount;
Sdi->NumberOfFloppies = ConfigInfo->FloppyCount;
Sdi->NumberOfCdRoms = ConfigInfo->CdRomCount;
Sdi->NumberOfTapes = ConfigInfo->TapeCount;
Sdi->NumberOfSerialPorts = ConfigInfo->SerialCount;
Sdi->NumberOfParallelPorts = ConfigInfo->ParallelCount;
return (STATUS_SUCCESS);
}
/* Class 8 - Processor Performance Information */
QSI_DEF(SystemProcessorPerformanceInformation)
{
PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION Spi
= (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION) Buffer;
LONG i;
LARGE_INTEGER CurrentTime;
PKPRCB Prcb;
*ReqSize = KeNumberProcessors * sizeof (SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);
/*
* Check user buffer's size
*/
if (Size < KeNumberProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
CurrentTime.QuadPart = KeQueryInterruptTime();
Prcb = KeGetPcr()->Prcb;
for (i = 0; i < KeNumberProcessors; i++)
{
Spi->IdleTime.QuadPart = (Prcb->IdleThread->KernelTime + Prcb->IdleThread->UserTime) * 100000LL;
Spi->KernelTime.QuadPart = Prcb->KernelTime * 100000LL;
Spi->UserTime.QuadPart = Prcb->UserTime * 100000LL;
Spi->DpcTime.QuadPart = Prcb->DpcTime * 100000LL;
Spi->InterruptTime.QuadPart = Prcb->InterruptTime * 100000LL;
Spi->InterruptCount = Prcb->InterruptCount;
Spi++;
Prcb = (PKPRCB)((ULONG_PTR)Prcb + PAGE_SIZE);
}
return (STATUS_SUCCESS);
}
/* Class 9 - Flags Information */
QSI_DEF(SystemFlagsInformation)
{
if (sizeof (SYSTEM_FLAGS_INFORMATION) != Size)
{
* ReqSize = sizeof (SYSTEM_FLAGS_INFORMATION);
return (STATUS_INFO_LENGTH_MISMATCH);
}
((PSYSTEM_FLAGS_INFORMATION) Buffer)->Flags = NtGlobalFlag;
return (STATUS_SUCCESS);
}
SSI_DEF(SystemFlagsInformation)
{
if (sizeof (SYSTEM_FLAGS_INFORMATION) != Size)
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
NtGlobalFlag = ((PSYSTEM_FLAGS_INFORMATION) Buffer)->Flags;
return (STATUS_SUCCESS);
}
/* Class 10 - Call Time Information */
QSI_DEF(SystemCallTimeInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemCallTimeInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 11 - Module Information */
QSI_DEF(SystemModuleInformation)
{
extern LIST_ENTRY PsLoadedModuleList;
return ExpQueryModuleInformation(&PsLoadedModuleList,
NULL,
(PRTL_PROCESS_MODULES)Buffer,
Size,
ReqSize);
}
/* Class 12 - Locks Information */
QSI_DEF(SystemLocksInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemLocksInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 13 - Stack Trace Information */
QSI_DEF(SystemStackTraceInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemStackTraceInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 14 - Paged Pool Information */
QSI_DEF(SystemPagedPoolInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemPagedPoolInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 15 - Non Paged Pool Information */
QSI_DEF(SystemNonPagedPoolInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemNonPagedPoolInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 16 - Handle Information */
QSI_DEF(SystemHandleInformation)
{
PEPROCESS pr, syspr;
ULONG curSize, i = 0;
ULONG hCount = 0;
PSYSTEM_HANDLE_INFORMATION Shi =
(PSYSTEM_HANDLE_INFORMATION) Buffer;
DPRINT("NtQuerySystemInformation - SystemHandleInformation\n");
if (Size < sizeof (SYSTEM_HANDLE_INFORMATION))
{
* ReqSize = sizeof (SYSTEM_HANDLE_INFORMATION);
return (STATUS_INFO_LENGTH_MISMATCH);
}
DPRINT("SystemHandleInformation 1\n");
/* First Calc Size from Count. */
syspr = PsGetNextProcess(NULL);
pr = syspr;
do
{
hCount = hCount + (pr->ObjectTable ? ObpGetHandleCountByHandleTable(pr->ObjectTable) : 0);
pr = PsGetNextProcess(pr);
if ((pr == syspr) || (pr == NULL))
break;
} while ((pr != syspr) && (pr != NULL));
if(pr != NULL)
{
ObDereferenceObject(pr);
}
DPRINT("SystemHandleInformation 2\n");
curSize = sizeof(SYSTEM_HANDLE_INFORMATION)+
( (sizeof(SYSTEM_HANDLE_TABLE_ENTRY_INFO) * hCount) -
(sizeof(SYSTEM_HANDLE_TABLE_ENTRY_INFO) ));
Shi->NumberOfHandles = hCount;
if (curSize > Size)
{
*ReqSize = curSize;
return (STATUS_INFO_LENGTH_MISMATCH);
}
DPRINT("SystemHandleInformation 3\n");
/* Now get Handles from all processs. */
syspr = PsGetNextProcess(NULL);
pr = syspr;
do
{
int Count = 0, HandleCount;
HandleCount = (pr->ObjectTable ? ObpGetHandleCountByHandleTable(pr->ObjectTable) : 0);
for (Count = 0; HandleCount > 0 ; HandleCount--)
{
Shi->Handles[i].UniqueProcessId = (USHORT)(ULONG)pr->UniqueProcessId;
Count++;
i++;
}
pr = PsGetNextProcess(pr);
if ((pr == syspr) || (pr == NULL))
break;
} while ((pr != syspr) && (pr != NULL));
if(pr != NULL)
{
ObDereferenceObject(pr);
}
DPRINT("SystemHandleInformation 4\n");
return (STATUS_SUCCESS);
}
/*
SSI_DEF(SystemHandleInformation)
{
return (STATUS_SUCCESS);
}
*/
/* Class 17 - Information */
QSI_DEF(SystemObjectInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemObjectInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 18 - Information */
QSI_DEF(SystemPageFileInformation)
{
UNICODE_STRING FileName; /* FIXME */
SYSTEM_PAGEFILE_INFORMATION *Spfi = (SYSTEM_PAGEFILE_INFORMATION *) Buffer;
if (Size < sizeof (SYSTEM_PAGEFILE_INFORMATION))
{
* ReqSize = sizeof (SYSTEM_PAGEFILE_INFORMATION);
return (STATUS_INFO_LENGTH_MISMATCH);
}
RtlInitUnicodeString(&FileName, NULL); /* FIXME */
/* FIXME */
Spfi->NextEntryOffset = 0;
Spfi->TotalSize = MiFreeSwapPages + MiUsedSwapPages;
Spfi->TotalInUse = MiUsedSwapPages;
Spfi->PeakUsage = MiUsedSwapPages; /* FIXME */
Spfi->PageFileName = FileName;
return (STATUS_SUCCESS);
}
/* Class 19 - Vdm Instemul Information */
QSI_DEF(SystemVdmInstemulInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemVdmInstemulInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 20 - Vdm Bop Information */
QSI_DEF(SystemVdmBopInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemVdmBopInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 21 - File Cache Information */
QSI_DEF(SystemFileCacheInformation)
{
SYSTEM_FILECACHE_INFORMATION *Sci = (SYSTEM_FILECACHE_INFORMATION *) Buffer;
if (Size < sizeof (SYSTEM_FILECACHE_INFORMATION))
{
* ReqSize = sizeof (SYSTEM_FILECACHE_INFORMATION);
return (STATUS_INFO_LENGTH_MISMATCH);
}
RtlZeroMemory(Sci, sizeof(SYSTEM_FILECACHE_INFORMATION));
/* Return the Byte size not the page size. */
Sci->CurrentSize =
MiMemoryConsumers[MC_CACHE].PagesUsed * PAGE_SIZE;
Sci->PeakSize =
MiMemoryConsumers[MC_CACHE].PagesUsed * PAGE_SIZE; /* FIXME */
Sci->PageFaultCount = 0; /* FIXME */
Sci->MinimumWorkingSet = 0; /* FIXME */
Sci->MaximumWorkingSet = 0; /* FIXME */
return (STATUS_SUCCESS);
}
SSI_DEF(SystemFileCacheInformation)
{
if (Size < sizeof (SYSTEM_FILECACHE_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemFileCacheInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 22 - Pool Tag Information */
QSI_DEF(SystemPoolTagInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemPoolTagInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 23 - Interrupt Information for all processors */
QSI_DEF(SystemInterruptInformation)
{
PKPRCB Prcb;
PKPCR Pcr;
LONG i;
ULONG ti;
PSYSTEM_INTERRUPT_INFORMATION sii = (PSYSTEM_INTERRUPT_INFORMATION)Buffer;
if(Size < KeNumberProcessors * sizeof(SYSTEM_INTERRUPT_INFORMATION))
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
ti = KeQueryTimeIncrement();
for (i = 0; i < KeNumberProcessors; i++)
{
Prcb = KiProcessorBlock[i];
Pcr = CONTAINING_RECORD(Prcb, KPCR, Prcb);
#ifdef _M_ARM // This code should probably be done differently
sii->ContextSwitches = Pcr->ContextSwitches;
#else
sii->ContextSwitches = ((PKIPCR)Pcr)->ContextSwitches;
#endif
sii->DpcCount = Prcb->DpcData[0].DpcCount;
sii->DpcRate = Prcb->DpcRequestRate;
sii->TimeIncrement = ti;
sii->DpcBypassCount = 0;
sii->ApcBypassCount = 0;
sii++;
}
return STATUS_SUCCESS;
}
/* Class 24 - DPC Behaviour Information */
QSI_DEF(SystemDpcBehaviourInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemDpcBehaviourInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
SSI_DEF(SystemDpcBehaviourInformation)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemDpcBehaviourInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 25 - Full Memory Information */
QSI_DEF(SystemFullMemoryInformation)
{
PULONG Spi = (PULONG) Buffer;
PEPROCESS TheIdleProcess;
* ReqSize = sizeof (ULONG);
if (sizeof (ULONG) != Size)
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
DPRINT("SystemFullMemoryInformation\n");
TheIdleProcess = PsIdleProcess;
DPRINT("PID: %d, KernelTime: %u PFFree: %d PFUsed: %d\n",
TheIdleProcess->UniqueProcessId,
TheIdleProcess->Pcb.KernelTime,
MiFreeSwapPages,
MiUsedSwapPages);
#ifndef NDEBUG
MmPrintMemoryStatistic();
#endif
*Spi = MiMemoryConsumers[MC_USER].PagesUsed;
return (STATUS_SUCCESS);
}
/* Class 26 - Load Image */
SSI_DEF(SystemLoadGdiDriverInformation)
{
PSYSTEM_GDI_DRIVER_INFORMATION DriverInfo = (PVOID)Buffer;
KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
UNICODE_STRING ImageName;
PVOID ImageBase;
ULONG_PTR EntryPoint;
NTSTATUS Status;
ULONG DirSize;
PIMAGE_NT_HEADERS NtHeader;
/* Validate size */
if (Size != sizeof(SYSTEM_GDI_DRIVER_INFORMATION))
{
/* Incorrect buffer length, fail */
return STATUS_INFO_LENGTH_MISMATCH;
}
/* Only kernel-mode can call this function */
if (PreviousMode != KernelMode) return STATUS_PRIVILEGE_NOT_HELD;
/* Load the driver */
ImageName = DriverInfo->DriverName;
Status = MmLoadSystemImage(&ImageName,
NULL,
NULL,
0,
NULL,
&ImageBase);
if (!NT_SUCCESS(Status)) return Status;
/* Return the export pointer */
DriverInfo->ExportSectionPointer =
RtlImageDirectoryEntryToData(ImageBase,
TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT,
&DirSize);
/* Get the entrypoint */
NtHeader = RtlImageNtHeader(ImageBase);
EntryPoint = NtHeader->OptionalHeader.AddressOfEntryPoint;
EntryPoint += (ULONG_PTR)ImageBase;
/* Save other data */
DriverInfo->ImageAddress = ImageBase;
DriverInfo->SectionPointer = NULL;
DriverInfo->EntryPoint = (PVOID)EntryPoint;
DriverInfo->ImageLength = NtHeader->OptionalHeader.SizeOfImage;
/* All is good */
return STATUS_SUCCESS;
}
/* Class 27 - Unload Image */
SSI_DEF(SystemUnloadGdiDriverInformation)
{
PLDR_DATA_TABLE_ENTRY LdrEntry;
PLIST_ENTRY NextEntry;
PVOID BaseAddr = *((PVOID*)Buffer);
if(Size != sizeof(PVOID))
return STATUS_INFO_LENGTH_MISMATCH;
if(KeGetPreviousMode() != KernelMode)
return STATUS_PRIVILEGE_NOT_HELD;
// Scan the module list
NextEntry = PsLoadedModuleList.Flink;
while(NextEntry != &PsLoadedModuleList)
{
LdrEntry = CONTAINING_RECORD(NextEntry,
LDR_DATA_TABLE_ENTRY,
InLoadOrderLinks);
if (LdrEntry->DllBase == BaseAddr)
{
// Found it.
break;
}
NextEntry = NextEntry->Flink;
}
// Check if we found the image
if(NextEntry != &PsLoadedModuleList)
{
return MmUnloadSystemImage(LdrEntry);
}
else
{
DPRINT1("Image 0x%x not found.\n", BaseAddr);
return STATUS_DLL_NOT_FOUND;
}
}
/* Class 28 - Time Adjustment Information */
QSI_DEF(SystemTimeAdjustmentInformation)
{
if (sizeof (SYSTEM_SET_TIME_ADJUST_INFORMATION) > Size)
{
* ReqSize = sizeof (SYSTEM_SET_TIME_ADJUST_INFORMATION);
return (STATUS_INFO_LENGTH_MISMATCH);
}
/* FIXME: */
DPRINT1("NtQuerySystemInformation - SystemTimeAdjustmentInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
SSI_DEF(SystemTimeAdjustmentInformation)
{
if (sizeof (SYSTEM_SET_TIME_ADJUST_INFORMATION) > Size)
{
return (STATUS_INFO_LENGTH_MISMATCH);
}
/* FIXME: */
DPRINT1("NtSetSystemInformation - SystemTimeAdjustmentInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 29 - Summary Memory Information */
QSI_DEF(SystemSummaryMemoryInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemSummaryMemoryInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 30 - Next Event Id Information */
QSI_DEF(SystemNextEventIdInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemNextEventIdInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 31 - Event Ids Information */
QSI_DEF(SystemEventIdsInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemEventIdsInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 32 - Crash Dump Information */
QSI_DEF(SystemCrashDumpInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemCrashDumpInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 33 - Exception Information */
QSI_DEF(SystemExceptionInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemExceptionInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 34 - Crash Dump State Information */
QSI_DEF(SystemCrashDumpStateInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemCrashDumpStateInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 35 - Kernel Debugger Information */
QSI_DEF(SystemKernelDebuggerInformation)
{
PSYSTEM_KERNEL_DEBUGGER_INFORMATION skdi = (PSYSTEM_KERNEL_DEBUGGER_INFORMATION) Buffer;
*ReqSize = sizeof(SYSTEM_KERNEL_DEBUGGER_INFORMATION);
if (Size < sizeof(SYSTEM_KERNEL_DEBUGGER_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
skdi->KernelDebuggerEnabled = KD_DEBUGGER_ENABLED;
skdi->KernelDebuggerNotPresent = KD_DEBUGGER_NOT_PRESENT;
return STATUS_SUCCESS;
}
/* Class 36 - Context Switch Information */
QSI_DEF(SystemContextSwitchInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemContextSwitchInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 37 - Registry Quota Information */
QSI_DEF(SystemRegistryQuotaInformation)
{
PSYSTEM_REGISTRY_QUOTA_INFORMATION srqi = (PSYSTEM_REGISTRY_QUOTA_INFORMATION) Buffer;
*ReqSize = sizeof(SYSTEM_REGISTRY_QUOTA_INFORMATION);
if (Size < sizeof(SYSTEM_REGISTRY_QUOTA_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
DPRINT1("Faking max registry size of 32 MB\n");
srqi->RegistryQuotaAllowed = 0x2000000;
srqi->RegistryQuotaUsed = 0x200000;
srqi->PagedPoolSize = 0x200000;
return STATUS_SUCCESS;
}
SSI_DEF(SystemRegistryQuotaInformation)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemRegistryQuotaInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 38 - Load And Call Image */
SSI_DEF(SystemExtendServiceTableInformation)
{
UNICODE_STRING ImageName;
KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
PLDR_DATA_TABLE_ENTRY ModuleObject;
NTSTATUS Status;
PIMAGE_NT_HEADERS NtHeader;
DRIVER_OBJECT Win32k;
PDRIVER_INITIALIZE DriverInit;
PVOID ImageBase;
ULONG_PTR EntryPoint;
/* Validate the size */
if (Size != sizeof(UNICODE_STRING)) return STATUS_INFO_LENGTH_MISMATCH;
/* Check who is calling */
if (PreviousMode != KernelMode)
{
/* Make sure we can load drivers */
if (!SeSinglePrivilegeCheck(SeLoadDriverPrivilege, UserMode))
{
/* FIXME: We can't, fail */
//return STATUS_PRIVILEGE_NOT_HELD;
}
/* Probe and capture the driver name */
ProbeAndCaptureUnicodeString(&ImageName, UserMode, Buffer);
/* Force kernel as previous mode */
return ZwSetSystemInformation(SystemExtendServiceTableInformation,
&ImageName,
sizeof(ImageName));
}
/* Just copy the string */
ImageName = *(PUNICODE_STRING)Buffer;
/* Load the image */
Status = MmLoadSystemImage(&ImageName,
NULL,
NULL,
0,
(PVOID)&ModuleObject,
&ImageBase);
if (!NT_SUCCESS(Status)) return Status;
/* Get the headers */
NtHeader = RtlImageNtHeader(ImageBase);
if (!NtHeader)
{
/* Fail */
MmUnloadSystemImage(ModuleObject);
return STATUS_INVALID_IMAGE_FORMAT;
}
/* Get the entrypoint */
EntryPoint = NtHeader->OptionalHeader.AddressOfEntryPoint;
EntryPoint += (ULONG_PTR)ImageBase;
DriverInit = (PDRIVER_INITIALIZE)EntryPoint;
/* Create a dummy device */
RtlZeroMemory(&Win32k, sizeof(Win32k));
ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
Win32k.DriverStart = ImageBase;
/* Call it */
Status = (DriverInit)(&Win32k, NULL);
ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
/* Unload if we failed */
if (!NT_SUCCESS(Status)) MmUnloadSystemImage(ModuleObject);
return Status;
}
/* Class 39 - Priority Separation */
SSI_DEF(SystemPrioritySeperation)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemPrioritySeperation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 40 - Plug Play Bus Information */
QSI_DEF(SystemPlugPlayBusInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemPlugPlayBusInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 41 - Dock Information */
QSI_DEF(SystemDockInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemDockInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 42 - Power Information */
QSI_DEF(SystemPowerInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemPowerInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 43 - Processor Speed Information */
QSI_DEF(SystemProcessorSpeedInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemProcessorSpeedInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 44 - Current Time Zone Information */
QSI_DEF(SystemCurrentTimeZoneInformation)
{
* ReqSize = sizeof (TIME_ZONE_INFORMATION);
if (sizeof (TIME_ZONE_INFORMATION) != Size)
{
return STATUS_INFO_LENGTH_MISMATCH;
}
/* Copy the time zone information struct */
memcpy(Buffer,
&ExpTimeZoneInfo,
sizeof(TIME_ZONE_INFORMATION));
return STATUS_SUCCESS;
}
SSI_DEF(SystemCurrentTimeZoneInformation)
{
/* Check user buffer's size */
if (Size < sizeof (TIME_ZONE_INFORMATION))
{
return STATUS_INFO_LENGTH_MISMATCH;
}
return ExpSetTimeZoneInformation((PTIME_ZONE_INFORMATION)Buffer);
}
/* Class 45 - Lookaside Information */
QSI_DEF(SystemLookasideInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemLookasideInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 46 - Set time slip event */
SSI_DEF(SystemSetTimeSlipEvent)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemSetTimSlipEvent not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 47 - Create a new session (TSE) */
SSI_DEF(SystemCreateSession)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemCreateSession not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 48 - Delete an existing session (TSE) */
SSI_DEF(SystemDeleteSession)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemDeleteSession not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 49 - UNKNOWN */
QSI_DEF(SystemInvalidInfoClass4)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemInvalidInfoClass4 not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 50 - System range start address */
QSI_DEF(SystemRangeStartInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemRangeStartInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 51 - Driver verifier information */
QSI_DEF(SystemVerifierInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemVerifierInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
SSI_DEF(SystemVerifierInformation)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemVerifierInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 52 - Add a driver verifier */
SSI_DEF(SystemAddVerifier)
{
/* FIXME */
DPRINT1("NtSetSystemInformation - SystemAddVerifier not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Class 53 - A session's processes */
QSI_DEF(SystemSessionProcessesInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemSessionProcessInformation not implemented\n");
return (STATUS_NOT_IMPLEMENTED);
}
/* Query/Set Calls Table */
typedef
struct _QSSI_CALLS
{
NTSTATUS (* Query) (PVOID,ULONG,PULONG);
NTSTATUS (* Set) (PVOID,ULONG);
} QSSI_CALLS;
// QS Query & Set
// QX Query
// XS Set
// XX unknown behaviour
//
#define SI_QS(n) {QSI_USE(n),SSI_USE(n)}
#define SI_QX(n) {QSI_USE(n),NULL}
#define SI_XS(n) {NULL,SSI_USE(n)}
#define SI_XX(n) {NULL,NULL}
static
QSSI_CALLS
CallQS [] =
{
SI_QX(SystemBasicInformation),
SI_QX(SystemProcessorInformation),
SI_QX(SystemPerformanceInformation),
SI_QX(SystemTimeOfDayInformation),
SI_QX(SystemPathInformation), /* should be SI_XX */
SI_QX(SystemProcessInformation),
SI_QX(SystemCallCountInformation),
SI_QX(SystemDeviceInformation),
SI_QX(SystemProcessorPerformanceInformation),
SI_QS(SystemFlagsInformation),
SI_QX(SystemCallTimeInformation), /* should be SI_XX */
SI_QX(SystemModuleInformation),
SI_QX(SystemLocksInformation),
SI_QX(SystemStackTraceInformation), /* should be SI_XX */
SI_QX(SystemPagedPoolInformation), /* should be SI_XX */
SI_QX(SystemNonPagedPoolInformation), /* should be SI_XX */
SI_QX(SystemHandleInformation),
SI_QX(SystemObjectInformation),
SI_QX(SystemPageFileInformation),
SI_QX(SystemVdmInstemulInformation),
SI_QX(SystemVdmBopInformation), /* it should be SI_XX */
SI_QS(SystemFileCacheInformation),
SI_QX(SystemPoolTagInformation),
SI_QX(SystemInterruptInformation),
SI_QS(SystemDpcBehaviourInformation),
SI_QX(SystemFullMemoryInformation), /* it should be SI_XX */
SI_XS(SystemLoadGdiDriverInformation),
SI_XS(SystemUnloadGdiDriverInformation),
SI_QS(SystemTimeAdjustmentInformation),
SI_QX(SystemSummaryMemoryInformation), /* it should be SI_XX */
SI_QX(SystemNextEventIdInformation), /* it should be SI_XX */
SI_QX(SystemEventIdsInformation), /* it should be SI_XX */
SI_QX(SystemCrashDumpInformation),
SI_QX(SystemExceptionInformation),
SI_QX(SystemCrashDumpStateInformation),
SI_QX(SystemKernelDebuggerInformation),
SI_QX(SystemContextSwitchInformation),
SI_QS(SystemRegistryQuotaInformation),
SI_XS(SystemExtendServiceTableInformation),
SI_XS(SystemPrioritySeperation),
SI_QX(SystemPlugPlayBusInformation), /* it should be SI_XX */
SI_QX(SystemDockInformation), /* it should be SI_XX */
SI_QX(SystemPowerInformation), /* it should be SI_XX */
SI_QX(SystemProcessorSpeedInformation), /* it should be SI_XX */
SI_QS(SystemCurrentTimeZoneInformation), /* it should be SI_QX */
SI_QX(SystemLookasideInformation),
SI_XS(SystemSetTimeSlipEvent),
SI_XS(SystemCreateSession),
SI_XS(SystemDeleteSession),
SI_QX(SystemInvalidInfoClass4), /* it should be SI_XX */
SI_QX(SystemRangeStartInformation),
SI_QS(SystemVerifierInformation),
SI_XS(SystemAddVerifier),
SI_QX(SystemSessionProcessesInformation)
};
/*
* @implemented
*/
NTSTATUS NTAPI
NtQuerySystemInformation (IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
OUT PVOID SystemInformation,
IN ULONG Length,
OUT PULONG UnsafeResultLength)
{
KPROCESSOR_MODE PreviousMode;
ULONG ResultLength;
NTSTATUS FStatus = STATUS_NOT_IMPLEMENTED;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
_SEH_TRY
{
if (PreviousMode != KernelMode)
{
/* SystemKernelDebuggerInformation needs only BOOLEAN alignment */
ProbeForWrite(SystemInformation, Length, 1);
if (UnsafeResultLength != NULL)
ProbeForWriteUlong(UnsafeResultLength);
}
/*
* Check the request is valid.
*/
if (SystemInformationClass >= MaxSystemInfoClass)
{
_SEH_YIELD(return STATUS_INVALID_INFO_CLASS);
}
if (NULL != CallQS [SystemInformationClass].Query)
{
/*
* Hand the request to a subhandler.
*/
FStatus = CallQS [SystemInformationClass].Query(SystemInformation,
Length,
&ResultLength);
if (UnsafeResultLength != NULL)
{
if (PreviousMode != KernelMode)
{
*UnsafeResultLength = ResultLength;
}
else
{
*UnsafeResultLength = ResultLength;
}
}
}
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
FStatus = _SEH_GetExceptionCode();
}
_SEH_END;
return (FStatus);
}
NTSTATUS
NTAPI
NtSetSystemInformation (
IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
IN PVOID SystemInformation,
IN ULONG SystemInformationLength
)
{
PAGED_CODE();
/*
* If called from user mode, check
* possible unsafe arguments.
*/
#if 0
if (KernelMode != KeGetPreviousMode())
{
// Check arguments
//ProbeForWrite(
// SystemInformation,
// Length
// );
//ProbeForWrite(
// ResultLength,
// sizeof (ULONG)
// );
}
#endif
/*
* Check the request is valid.
*/
if ( (SystemInformationClass >= SystemBasicInformation)
&& (SystemInformationClass < MaxSystemInfoClass)
)
{
if (NULL != CallQS [SystemInformationClass].Set)
{
/*
* Hand the request to a subhandler.
*/
return CallQS [SystemInformationClass].Set (
SystemInformation,
SystemInformationLength
);
}
}
return (STATUS_INVALID_INFO_CLASS);
}
NTSTATUS
NTAPI
NtFlushInstructionCache (
IN HANDLE ProcessHandle,
IN PVOID BaseAddress,
IN ULONG NumberOfBytesToFlush
)
{
PAGED_CODE();
#if defined(_M_IX86)
__wbinvd();
#elif defined(_M_PPC)
__asm__ __volatile__("tlbsync");
#elif defined(_M_MIPS)
DPRINT1("NtFlushInstructionCache() is not implemented\n");
for (;;);
#elif defined(_M_ARM)
__asm__ __volatile__("mov r1, #0; mcr p15, 0, r1, c7, c5, 0");
#else
#error Unknown architecture
#endif
return STATUS_SUCCESS;
}
ULONG
NTAPI
NtGetCurrentProcessorNumber(VOID)
{
/* Just return the CPU */
return KeGetCurrentProcessorNumber();
}
/* EOF */
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