#define NDEBUG
#include <debug.h>
-VOID MmPrintMemoryStatistic(VOID);
+/* The maximum size of an environment value (in bytes) */
+#define MAX_ENVVAL_SIZE 1024
FAST_MUTEX ExpEnvironmentLock;
ERESOURCE ExpFirmwareTableResource;
}
/* Set the offset */
- ModuleInfo->OffsetToFileName = p - ModuleName.Buffer;
+ ModuleInfo->OffsetToFileName = (USHORT)(p - ModuleName.Buffer);
}
else
{
Prcb = KeGetCurrentPrcb();
- ScaledIdle = Prcb->IdleThread->KernelTime * 100;
+ ScaledIdle = (ULONGLONG)Prcb->IdleThread->KernelTime * 100;
TotalTime = Prcb->KernelTime + Prcb->UserTime;
if (TotalTime != 0)
*CpuUsage = (ULONG)(100 - (ScaledIdle / TotalTime));
ANSI_STRING AName;
UNICODE_STRING WName;
ARC_STATUS Result;
- PCH Value;
+ PCH AnsiValueBuffer;
ANSI_STRING AValue;
UNICODE_STRING WValue;
KPROCESSOR_MODE PreviousMode;
NTSTATUS Status;
PAGED_CODE();
+ /* Check if the call came from user mode */
PreviousMode = ExGetPreviousMode();
-
if (PreviousMode != KernelMode)
{
_SEH2_TRY
{
- ProbeForRead(VariableName,
- sizeof(UNICODE_STRING),
- sizeof(ULONG));
-
- ProbeForWrite(ValueBuffer,
- ValueBufferLength,
- sizeof(WCHAR));
-
+ /* Probe the input and output buffers */
+ ProbeForRead(VariableName, sizeof(UNICODE_STRING), sizeof(ULONG));
+ ProbeForWrite(ValueBuffer, ValueBufferLength, sizeof(WCHAR));
if (ReturnLength != NULL) ProbeForWriteUlong(ReturnLength);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
_SEH2_END;
}
- /*
- * 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))
{
- /*
- * 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;
- }
+ 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);
+ /* Copy the name to kernel space if necessary */
+ Status = ProbeAndCaptureUnicodeString(&WName, PreviousMode, VariableName);
+ if (!NT_SUCCESS(Status)) return Status;
- if (!NT_SUCCESS(Status)) return Status;
+ /* Convert the name to ANSI and release the captured UNICODE string */
+ 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;
- }
+ /* Allocate a buffer for the ANSI environment variable */
+ AnsiValueBuffer = ExAllocatePoolWithTag(NonPagedPool, MAX_ENVVAL_SIZE, 'rvnE');
+ if (AnsiValueBuffer == 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;
- }
+ /* Get the environment variable and free the ANSI name */
+ Result = HalGetEnvironmentVariable(AName.Buffer,
+ MAX_ENVVAL_SIZE,
+ AnsiValueBuffer);
+ RtlFreeAnsiString(&AName);
- /*
- * Convert the result to UNICODE, protect with SEH in case the value buffer
- * isn't NULL-terminated!
- */
+ /* Check if we had success */
+ if (Result == ESUCCESS)
+ {
+ /* Copy the result back to the caller. */
_SEH2_TRY
{
- RtlInitAnsiString(&AValue, Value);
- Status = RtlAnsiStringToUnicodeString(&WValue, &AValue, TRUE);
+ /* Initialize ANSI string from the result */
+ RtlInitAnsiString(&AValue, AnsiValueBuffer);
+
+ /* Initialize a UNICODE string from the callers buffer */
+ RtlInitEmptyUnicodeString(&WValue, ValueBuffer, (USHORT)ValueBufferLength);
+
+ /* Convert the result to UNICODE */
+ Status = RtlAnsiStringToUnicodeString(&WValue, &AValue, FALSE);
+
+ if (ReturnLength != NULL)
+ *ReturnLength = WValue.Length;
}
_SEH2_EXCEPT(ExSystemExceptionFilter())
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
-
- if (NT_SUCCESS(Status))
- {
- /*
- * Copy the result back to the caller.
- */
- _SEH2_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;
- }
- _SEH2_EXCEPT(ExSystemExceptionFilter())
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END;
- }
-
- /*
- * Cleanup allocated resources.
- */
- RtlFreeAnsiString(&AName);
- ExFreePool(Value);
+ }
+ else
+ {
+ Status = STATUS_UNSUCCESSFUL;
}
+ /* Free the allocated ANSI value buffer */
+ ExFreePoolWithTag(AnsiValueBuffer, 'rvnE');
+
return Status;
}
#define SSI_DEF(n) \
static NTSTATUS SSI_USE(n) (PVOID Buffer, ULONG Size)
+VOID
+NTAPI
+ExQueryPoolUsage(OUT PULONG PagedPoolPages,
+ OUT PULONG NonPagedPoolPages,
+ OUT PULONG PagedPoolAllocs,
+ OUT PULONG PagedPoolFrees,
+ OUT PULONG PagedPoolLookasideHits,
+ OUT PULONG NonPagedPoolAllocs,
+ OUT PULONG NonPagedPoolFrees,
+ OUT PULONG NonPagedPoolLookasideHits);
/* Class 0 - Basic Information */
QSI_DEF(SystemBasicInformation)
Sbi->TimerResolution = KeMaximumIncrement;
Sbi->PageSize = PAGE_SIZE;
Sbi->NumberOfPhysicalPages = MmNumberOfPhysicalPages;
- Sbi->LowestPhysicalPageNumber = MmLowestPhysicalPage;
- Sbi->HighestPhysicalPageNumber = MmHighestPhysicalPage;
+ Sbi->LowestPhysicalPageNumber = (ULONG)MmLowestPhysicalPage;
+ Sbi->HighestPhysicalPageNumber = (ULONG)MmHighestPhysicalPage;
Sbi->AllocationGranularity = MM_VIRTMEM_GRANULARITY; /* hard coded on Intel? */
Sbi->MinimumUserModeAddress = 0x10000; /* Top of 64k */
Sbi->MaximumUserModeAddress = (ULONG_PTR)MmHighestUserAddress;
{
PSYSTEM_PROCESSOR_INFORMATION Spi
= (PSYSTEM_PROCESSOR_INFORMATION) Buffer;
- PKPRCB Prcb;
*ReqSize = sizeof(SYSTEM_PROCESSOR_INFORMATION);
{
return STATUS_INFO_LENGTH_MISMATCH;
}
- Prcb = KeGetCurrentPrcb();
Spi->ProcessorArchitecture = KeProcessorArchitecture;
Spi->ProcessorLevel = KeProcessorLevel;
Spi->ProcessorRevision = KeProcessorRevision;
Spi->IoWriteOperationCount = IoWriteOperationCount;
Spi->IoOtherOperationCount = IoOtherOperationCount;
- Spi->AvailablePages = MmAvailablePages;
+ Spi->AvailablePages = (ULONG)MmAvailablePages;
/*
* Add up all the used "Committed" memory + pagefile.
* Not sure this is right. 8^\
*/
- Spi->CommittedPages = MiMemoryConsumers[MC_PPOOL].PagesUsed +
- MiMemoryConsumers[MC_NPPOOL].PagesUsed +
+ Spi->CommittedPages = MiMemoryConsumers[MC_SYSTEM].PagesUsed +
MiMemoryConsumers[MC_CACHE].PagesUsed +
MiMemoryConsumers[MC_USER].PagesUsed +
MiUsedSwapPages;
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->PagedPoolPages = 0;
+ Spi->NonPagedPoolPages = 0;
+ Spi->PagedPoolAllocs = 0;
+ Spi->PagedPoolFrees = 0;
+ Spi->PagedPoolLookasideHits = 0;
+ Spi->NonPagedPoolAllocs = 0;
+ Spi->NonPagedPoolFrees = 0;
+ Spi->NonPagedPoolLookasideHits = 0;
+ ExQueryPoolUsage(&Spi->PagedPoolPages,
+ &Spi->NonPagedPoolPages,
+ &Spi->PagedPoolAllocs,
+ &Spi->PagedPoolFrees,
+ &Spi->PagedPoolLookasideHits,
+ &Spi->NonPagedPoolAllocs,
+ &Spi->NonPagedPoolFrees,
+ &Spi->NonPagedPoolLookasideHits);
Spi->FreeSystemPtes = 0; /* FIXME */
Spi->ResidentSystemCodePage = 0; /* 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 = MiMemoryConsumers[MC_PPOOL].PagesUsed; /* FIXME */
+ Spi->ResidentPagedPoolPage = 0; /* FIXME */
Spi->ResidentSystemDriverPage = 0; /* FIXME */
Spi->CcFastReadNoWait = 0; /* FIXME */
/* Check for overflow */
if (Size < sizeof(SYSTEM_PROCESS_INFORMATION))
+ {
Overflow = TRUE;
+ }
/* Zero user's buffer */
if (!Overflow) RtlZeroMemory(Spi, Size);
{
SpiCurrent = (PSYSTEM_PROCESS_INFORMATION) Current;
+ if ((Process->ProcessExiting) &&
+ (Process->Pcb.Header.SignalState) &&
+ !(Process->ActiveThreads) &&
+ (IsListEmpty(&Process->Pcb.ThreadListHead)))
+ {
+ DPRINT1("Process %p (%s:%lx) is a zombie\n",
+ Process, Process->ImageFileName, Process->UniqueProcessId);
+ CurrentSize = 0;
+ ImageNameMaximumLength = 0;
+ goto Skip;
+ }
+
ThreadsCount = 0;
- CurrentEntry = Process->ThreadListHead.Flink;
- while (CurrentEntry != &Process->ThreadListHead)
+ CurrentEntry = Process->Pcb.ThreadListHead.Flink;
+ while (CurrentEntry != &Process->Pcb.ThreadListHead)
{
ThreadsCount++;
CurrentEntry = CurrentEntry->Flink;
}
}
}
- if (!ImageNameLength && Process != PsIdleProcess && Process->ImageFileName)
+ if (!ImageNameLength && Process != PsIdleProcess)
{
- ImageNameLength = strlen(Process->ImageFileName) * sizeof(WCHAR);
+ ImageNameLength = (USHORT)strlen(Process->ImageFileName) * sizeof(WCHAR);
}
/* Round up the image name length as NT does */
/* Check for overflow */
if (TotalSize > Size)
+ {
Overflow = TRUE;
+ }
/* Fill system information */
if (!Overflow)
RtlCopyMemory(SpiCurrent->ImageName.Buffer, szSrc, SpiCurrent->ImageName.Length);
/* Release the memory allocated by SeLocateProcessImageName */
- ExFreePool(ProcessImageName);
+ ExFreePoolWithTag(ProcessImageName, TAG_SEPA);
}
- else if (Process->ImageFileName)
+ else
{
RtlInitAnsiString(&ImageName, Process->ImageFileName);
RtlAnsiStringToUnicodeString(&SpiCurrent->ImageName, &ImageName, FALSE);
SpiCurrent->PrivatePageCount = Process->CommitCharge;
ThreadInfo = (PSYSTEM_THREAD_INFORMATION)(SpiCurrent + 1);
- CurrentEntry = Process->ThreadListHead.Flink;
- while (CurrentEntry != &Process->ThreadListHead)
+ CurrentEntry = Process->Pcb.ThreadListHead.Flink;
+ while (CurrentEntry != &Process->Pcb.ThreadListHead)
{
- CurrentThread = CONTAINING_RECORD(CurrentEntry, ETHREAD,
+ CurrentThread = (PETHREAD)CONTAINING_RECORD(CurrentEntry, KTHREAD,
ThreadListEntry);
ThreadInfo->KernelTime.QuadPart = UInt32x32To64(CurrentThread->Tcb.KernelTime, KeMaximumIncrement);
}
/* Handle idle process entry */
+Skip:
if (Process == PsIdleProcess) Process = NULL;
Process = PsGetNextProcess(Process);
LONG i;
ULONG TotalTime;
- LARGE_INTEGER CurrentTime;
PKPRCB Prcb;
*ReqSize = KeNumberProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);
return STATUS_INFO_LENGTH_MISMATCH;
}
- CurrentTime.QuadPart = KeQueryInterruptTime();
for (i = 0; i < KeNumberProcessors; i++)
{
/* Get the PRCB on this processor */
/* Class 22 - Pool Tag Information */
QSI_DEF(SystemPoolTagInformation)
{
- /* FIXME */
- DPRINT1("NtQuerySystemInformation - SystemPoolTagInformation not implemented\n");
- return STATUS_NOT_IMPLEMENTED;
+ if (Size < sizeof(SYSTEM_POOLTAG_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
+ return ExGetPoolTagInfo(Buffer, Size, ReqSize);
}
/* Class 23 - Interrupt Information for all processors */
MiFreeSwapPages,
MiUsedSwapPages);
-#ifndef NDEBUG
- MmPrintMemoryStatistic();
-#endif
-
*Spi = MiMemoryConsumers[MC_USER].PagesUsed;
return STATUS_SUCCESS;
/* Give time values to our caller */
TimeInfo->TimeIncrement = KeMaximumIncrement;
TimeInfo->TimeAdjustment = KeTimeAdjustment;
- TimeInfo->Enable = TRUE;
+ TimeInfo->Enable = !KiTimeAdjustmentEnabled;
return STATUS_SUCCESS;
}
SSI_DEF(SystemTimeAdjustmentInformation)
{
KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
- /*PSYSTEM_SET_TIME_ADJUST_INFORMATION TimeInfo =
- (PSYSTEM_SET_TIME_ADJUST_INFORMATION)Buffer;*/
+ PSYSTEM_SET_TIME_ADJUST_INFORMATION TimeInfo =
+ (PSYSTEM_SET_TIME_ADJUST_INFORMATION)Buffer;
/* Check size of a buffer, it must match our expectations */
if (sizeof(SYSTEM_SET_TIME_ADJUST_INFORMATION) != Size)
}
}
- /* TODO: Set time adjustment information */
- DPRINT1("Setting of SystemTimeAdjustmentInformation is not implemented yet!\n");
- return STATUS_NOT_IMPLEMENTED;
+ /* FIXME: behaviour suggests the member be named 'Disable' */
+ if (TimeInfo->Enable)
+ {
+ /* Disable time adjustment and set default value */
+ KiTimeAdjustmentEnabled = FALSE;
+ KeTimeAdjustment = KeMaximumIncrement;
+ }
+ else
+ {
+ /* Check if a valid time adjustment value is given */
+ if (TimeInfo->TimeAdjustment == 0) return STATUS_INVALID_PARAMETER_2;
+
+ /* Enable time adjustment and set the adjustment value */
+ KiTimeAdjustmentEnabled = TRUE;
+ KeTimeAdjustment = TimeInfo->TimeAdjustment;
+ }
+
+ return STATUS_SUCCESS;
}
/* Class 29 - Summary Memory Information */
PSYSTEM_EXCEPTION_INFORMATION ExceptionInformation =
(PSYSTEM_EXCEPTION_INFORMATION)Buffer;
PKPRCB Prcb;
- ULONG i, AlignmentFixupCount = 0, ExceptionDispatchCount = 0;
+ ULONG AlignmentFixupCount = 0, ExceptionDispatchCount = 0;
ULONG FloatingEmulationCount = 0, ByteWordEmulationCount = 0;
+ CHAR i;
/* Check size of a buffer, it must match our expectations */
if (sizeof(SYSTEM_EXCEPTION_INFORMATION) != Size)
{
PSYSTEM_CONTEXT_SWITCH_INFORMATION ContextSwitchInformation =
(PSYSTEM_CONTEXT_SWITCH_INFORMATION)Buffer;
- ULONG ContextSwitches, i;
+ ULONG ContextSwitches;
PKPRCB Prcb;
+ CHAR i;
/* Check size of a buffer, it must match our expectations */
if (sizeof(SYSTEM_CONTEXT_SWITCH_INFORMATION) != Size)
return STATUS_NOT_IMPLEMENTED;
}
+NTSTATUS
+NTAPI
+MmSessionCreate(OUT PULONG SessionId);
+
+NTSTATUS
+NTAPI
+MmSessionDelete(IN ULONG SessionId);
/* Class 47 - Create a new session (TSE) */
SSI_DEF(SystemCreateSession)
{
- /* FIXME */
- DPRINT1("NtSetSystemInformation - SystemCreateSession not implemented\n");
- return STATUS_NOT_IMPLEMENTED;
+ ULONG SessionId;
+ KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
+ NTSTATUS Status;
+
+ if (Size != sizeof(ULONG)) return STATUS_INFO_LENGTH_MISMATCH;
+
+ if (PreviousMode != KernelMode)
+ {
+ if (!SeSinglePrivilegeCheck(SeLoadDriverPrivilege, PreviousMode))
+ {
+ return STATUS_PRIVILEGE_NOT_HELD;
+ }
+ }
+
+ Status = MmSessionCreate(&SessionId);
+ if (NT_SUCCESS(Status)) *(PULONG)Buffer = SessionId;
+
+ return Status;
}
/* Class 48 - Delete an existing session (TSE) */
SSI_DEF(SystemDeleteSession)
{
- /* FIXME */
- DPRINT1("NtSetSystemInformation - SystemDeleteSession not implemented\n");
- return STATUS_NOT_IMPLEMENTED;
+ ULONG SessionId;
+ KPROCESSOR_MODE PreviousMode = KeGetPreviousMode();
+
+ if (Size != sizeof(ULONG)) return STATUS_INFO_LENGTH_MISMATCH;
+
+ if (PreviousMode != KernelMode)
+ {
+ if (!SeSinglePrivilegeCheck(SeLoadDriverPrivilege, PreviousMode))
+ {
+ return STATUS_PRIVILEGE_NOT_HELD;
+ }
+ }
+
+ SessionId = *(PULONG)Buffer;
+
+ return MmSessionDelete(SessionId);
}
/* Class 50 - System range start address */
QSI_DEF(SystemRangeStartInformation)
{
- /* FIXME */
- DPRINT1("NtQuerySystemInformation - SystemRangeStartInformation not implemented\n");
- return STATUS_NOT_IMPLEMENTED;
-}
+ /* Check user buffer's size */
+ if (Size != sizeof(ULONG_PTR)) return STATUS_INFO_LENGTH_MISMATCH;
+
+ *(PULONG_PTR)Buffer = (ULONG_PTR)MmSystemRangeStart;
+ if (ReqSize) *ReqSize = sizeof(ULONG_PTR);
+
+ return STATUS_SUCCESS;
+}
/* Class 51 - Driver verifier information */
QSI_DEF(SystemVerifierInformation)
FStatus = CallQS [SystemInformationClass].Query(SystemInformation,
Length,
&ResultLength);
- if (UnsafeResultLength != NULL)
- {
- if (PreviousMode != KernelMode)
- {
- *UnsafeResultLength = ResultLength;
- }
- else
- {
- *UnsafeResultLength = ResultLength;
- }
- }
+
+ /* Save the result length to the caller */
+ if (UnsafeResultLength)
+ *UnsafeResultLength = ResultLength;
}
}
_SEH2_EXCEPT(ExSystemExceptionFilter())
projects / reactos.git / blobdiff