ERESOURCE ExpFirmwareTableResource;
LIST_ENTRY ExpFirmwareTableProviderListHead;
+FORCEINLINE
+NTSTATUS
+ExpConvertLdrModuleToRtlModule(IN ULONG ModuleCount,
+ IN PLDR_DATA_TABLE_ENTRY LdrEntry,
+ OUT PRTL_PROCESS_MODULE_INFORMATION ModuleInfo)
+{
+ PCHAR p;
+ NTSTATUS Status;
+ ANSI_STRING ModuleName;
+
+ /* 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 = (USHORT)(p - ModuleName.Buffer);
+ }
+ else
+ {
+ /* Return empty name */
+ ModuleInfo->FullPathName[0] = ANSI_NULL;
+ ModuleInfo->OffsetToFileName = 0;
+ }
+
+ return Status;
+}
+
NTSTATUS
NTAPI
ExpQueryModuleInformation(IN PLIST_ENTRY KernelModeList,
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);
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 = (USHORT)(p - ModuleName.Buffer);
- }
- else
- {
- /* Return empty name */
- ModuleInfo->FullPathName[0] = ANSI_NULL;
- ModuleInfo->OffsetToFileName = 0;
- }
+ Status = ExpConvertLdrModuleToRtlModule(ModuleCount,
+ LdrEntry,
+ ModuleInfo);
/* Go to the next module */
ModuleInfo++;
/* Check if caller also wanted user modules */
if (UserModeList)
{
- /* FIXME: TODO */
- DPRINT1("User-mode list not yet supported in ReactOS!\n");
+ NextEntry = UserModeList->Flink;
+ while (NextEntry != UserModeList)
+ {
+ /* 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)
+ {
+ Status = ExpConvertLdrModuleToRtlModule(ModuleCount,
+ LdrEntry,
+ ModuleInfo);
+
+ /* 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;
+ }
}
/* Update return length */
return Status;
}
+VOID
+NTAPI
+ExUnlockUserBuffer(PMDL Mdl)
+{
+ MmUnlockPages(Mdl);
+ ExFreePoolWithTag(Mdl, TAG_MDL);
+}
+
+NTSTATUS
+NTAPI
+ExLockUserBuffer(
+ PVOID BaseAddress,
+ ULONG Length,
+ KPROCESSOR_MODE AccessMode,
+ LOCK_OPERATION Operation,
+ PVOID *MappedSystemVa,
+ PMDL *OutMdl)
+{
+ PMDL Mdl;
+ PAGED_CODE();
+
+ *MappedSystemVa = NULL;
+ *OutMdl = NULL;
+
+ /* Allocate an MDL for the buffer */
+ Mdl = IoAllocateMdl(BaseAddress, Length, FALSE, TRUE, NULL);
+ if (Mdl == NULL)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Enter SEH for probing */
+ _SEH2_TRY
+ {
+ MmProbeAndLockPages(Mdl, AccessMode, Operation);
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ ExFreePoolWithTag(Mdl, TAG_MDL);
+ return _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ /* Return the safe kernel mode buffer */
+ *MappedSystemVa = MmGetSystemAddressForMdlSafe(Mdl, NormalPagePriority);
+ if (*MappedSystemVa == NULL)
+ {
+ ExUnlockUserBuffer(Mdl);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Return the MDL */
+ *OutMdl = Mdl;
+ return STATUS_SUCCESS;
+}
+
/* FUNCTIONS *****************************************************************/
/*
/* Class 27 - Unload Image */
SSI_DEF(SystemUnloadGdiDriverInformation)
{
- PVOID SectionPointer = Buffer;
+ PVOID *SectionPointer = Buffer;
/* Validate size */
if (Size != sizeof(PVOID))
if (ExGetPreviousMode() != KernelMode) return STATUS_PRIVILEGE_NOT_HELD;
/* Unload the image */
- MmUnloadSystemImage(SectionPointer);
+ MmUnloadSystemImage(*SectionPointer);
return STATUS_SUCCESS;
}
/* Check who is calling */
if (PreviousMode != KernelMode)
{
- static const UNICODE_STRING Win32kName =
+ static const UNICODE_STRING Win32kName =
RTL_CONSTANT_STRING(L"\\SystemRoot\\System32\\win32k.sys");
/* Make sure we can load drivers */
/* FIXME: We can't, fail */
return STATUS_PRIVILEGE_NOT_HELD;
}
-
+
_SEH2_TRY
{
/* Probe and copy the unicode string */
_SEH2_YIELD(return _SEH2_GetExceptionCode());
}
_SEH2_END;
-
+
/* Recursively call the function, so that we are from kernel mode */
return ZwSetSystemInformation(SystemExtendServiceTableInformation,
(PVOID)&Win32kName,
return ExpSetTimeZoneInformation((PTIME_ZONE_INFORMATION)Buffer);
}
+static
+VOID
+ExpCopyLookasideInformation(
+ PSYSTEM_LOOKASIDE_INFORMATION *InfoPointer,
+ PULONG RemainingPointer,
+ PLIST_ENTRY ListHead,
+ BOOLEAN ListUsesMisses)
+
+{
+ PSYSTEM_LOOKASIDE_INFORMATION Info;
+ PGENERAL_LOOKASIDE LookasideList;
+ PLIST_ENTRY ListEntry;
+ ULONG Remaining;
+
+ /* Get info pointer and remaining count of free array element */
+ Info = *InfoPointer;
+ Remaining = *RemainingPointer;
+
+ /* Loop as long as we have lookaside lists and free array elements */
+ for (ListEntry = ListHead->Flink;
+ (ListEntry != ListHead) && (Remaining > 0);
+ ListEntry = ListEntry->Flink, Remaining--)
+ {
+ LookasideList = CONTAINING_RECORD(ListEntry, GENERAL_LOOKASIDE, ListEntry);
+
+ /* Fill the next array element */
+ Info->CurrentDepth = LookasideList->Depth;
+ Info->MaximumDepth = LookasideList->MaximumDepth;
+ Info->TotalAllocates = LookasideList->TotalAllocates;
+ Info->TotalFrees = LookasideList->TotalFrees;
+ Info->Type = LookasideList->Type;
+ Info->Tag = LookasideList->Tag;
+ Info->Size = LookasideList->Size;
+
+ /* Check how the lists track misses/hits */
+ if (ListUsesMisses)
+ {
+ /* Copy misses */
+ Info->AllocateMisses = LookasideList->AllocateMisses;
+ Info->FreeMisses = LookasideList->FreeMisses;
+ }
+ else
+ {
+ /* Calculate misses */
+ Info->AllocateMisses = LookasideList->TotalAllocates
+ - LookasideList->AllocateHits;
+ Info->FreeMisses = LookasideList->TotalFrees
+ - LookasideList->FreeHits;
+ }
+ }
+
+ /* Return the updated pointer and remaining count */
+ *InfoPointer = Info;
+ *RemainingPointer = Remaining;
+}
/* Class 45 - Lookaside Information */
QSI_DEF(SystemLookasideInformation)
{
- /* FIXME */
- DPRINT1("NtQuerySystemInformation - SystemLookasideInformation not implemented\n");
- return STATUS_NOT_IMPLEMENTED;
+ KPROCESSOR_MODE PreviousMode;
+ PSYSTEM_LOOKASIDE_INFORMATION Info;
+ PMDL Mdl;
+ ULONG MaxCount, Remaining;
+ KIRQL OldIrql;
+ NTSTATUS Status;
+
+ /* First we need to lock down the memory, since we are going to access it
+ at high IRQL */
+ PreviousMode = ExGetPreviousMode();
+ Status = ExLockUserBuffer(Buffer,
+ Size,
+ PreviousMode,
+ IoWriteAccess,
+ (PVOID*)&Info,
+ &Mdl);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Failed to lock the user buffer: 0x%lx\n", Status);
+ return Status;
+ }
+
+ /* Calculate how many items we can store */
+ Remaining = MaxCount = Size / sizeof(SYSTEM_LOOKASIDE_INFORMATION);
+ if (Remaining == 0)
+ {
+ goto Leave;
+ }
+
+ /* Copy info from pool lookaside lists */
+ ExpCopyLookasideInformation(&Info,
+ &Remaining,
+ &ExPoolLookasideListHead,
+ FALSE);
+ if (Remaining == 0)
+ {
+ goto Leave;
+ }
+
+ /* Copy info from system lookaside lists */
+ ExpCopyLookasideInformation(&Info,
+ &Remaining,
+ &ExSystemLookasideListHead,
+ TRUE);
+ if (Remaining == 0)
+ {
+ goto Leave;
+ }
+
+ /* Acquire spinlock for ExpNonPagedLookasideListHead */
+ OldIrql = KfAcquireSpinLock(&ExpNonPagedLookasideListLock);
+
+ /* Copy info from non-paged lookaside lists */
+ ExpCopyLookasideInformation(&Info,
+ &Remaining,
+ &ExpNonPagedLookasideListHead,
+ TRUE);
+
+ /* Release spinlock for ExpNonPagedLookasideListHead */
+ KfReleaseSpinLock(&ExpNonPagedLookasideListLock, OldIrql);
+
+ if (Remaining == 0)
+ {
+ goto Leave;
+ }
+
+ /* Acquire spinlock for ExpPagedLookasideListHead */
+ OldIrql = KfAcquireSpinLock(&ExpPagedLookasideListLock);
+
+ /* Copy info from paged lookaside lists */
+ ExpCopyLookasideInformation(&Info,
+ &Remaining,
+ &ExpPagedLookasideListHead,
+ TRUE);
+
+ /* Release spinlock for ExpPagedLookasideListHead */
+ KfReleaseSpinLock(&ExpPagedLookasideListLock, OldIrql);
+
+Leave:
+
+ /* Release the locked user buffer */
+ ExUnlockUserBuffer(Mdl);
+
+ /* Return the size of the actually written data */
+ *ReqSize = (MaxCount - Remaining) * sizeof(SYSTEM_LOOKASIDE_INFORMATION);
+ return STATUS_SUCCESS;
}
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(SystemProcessInformation), // aka SystemProcessesAndThreadsInformation
+ SI_QX(SystemCallCountInformation), // aka SystemCallCounts
+ SI_QX(SystemDeviceInformation), // aka SystemConfigurationInformation
+ SI_QX(SystemProcessorPerformanceInformation), // aka SystemProcessorTimes
+ SI_QS(SystemFlagsInformation), // aka SystemGlobalFlag
SI_QX(SystemCallTimeInformation), /* should be SI_XX */
SI_QX(SystemModuleInformation),
- SI_QX(SystemLocksInformation),
+ SI_QX(SystemLocksInformation), // aka SystemLockInformation
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(SystemPageFileInformation), // aka SystemPagefileInformation
+ SI_QX(SystemVdmInstemulInformation), // aka SystemInstructionEmulationCounts
SI_QX(SystemVdmBopInformation), /* it should be SI_XX */
- SI_QS(SystemFileCacheInformation),
+ SI_QS(SystemFileCacheInformation), // aka SystemCacheInformation
SI_QX(SystemPoolTagInformation),
- SI_QX(SystemInterruptInformation),
- SI_QS(SystemDpcBehaviourInformation),
+ SI_QX(SystemInterruptInformation), // aka SystemProcessorStatistics
+ SI_QS(SystemDpcBehaviourInformation), // aka SystemDpcInformation
SI_QX(SystemFullMemoryInformation), /* it should be SI_XX */
- SI_XS(SystemLoadGdiDriverInformation),
- SI_XS(SystemUnloadGdiDriverInformation),
- SI_QS(SystemTimeAdjustmentInformation),
+ SI_XS(SystemLoadGdiDriverInformation), // correct: SystemLoadImage
+ SI_XS(SystemUnloadGdiDriverInformation), // correct: SystemUnloadImage
+ SI_QS(SystemTimeAdjustmentInformation), // aka SystemTimeAdjustment
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(SystemEventIdsInformation), /* it should be SI_XX */ // SystemPerformanceTraceInformation
SI_QX(SystemCrashDumpInformation),
SI_QX(SystemExceptionInformation),
SI_QX(SystemCrashDumpStateInformation),
SI_QX(SystemKernelDebuggerInformation),
SI_QX(SystemContextSwitchInformation),
SI_QS(SystemRegistryQuotaInformation),
- SI_XS(SystemExtendServiceTableInformation),
+ SI_XS(SystemExtendServiceTableInformation), // correct: SystemLoadAndCallImage
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(SystemPowerInformation), /* it should be SI_XX */ // SystemPowerInformationNative? SystemInvalidInfoClass2
SI_QX(SystemProcessorSpeedInformation), /* it should be SI_XX */
- SI_QS(SystemCurrentTimeZoneInformation), /* it should be SI_QX */
+ SI_QS(SystemCurrentTimeZoneInformation), /* it should be SI_QX */ // aka SystemTimeZoneInformation
SI_QX(SystemLookasideInformation),
SI_XS(SystemSetTimeSlipEvent),
SI_XS(SystemCreateSession),
SI_XS(SystemDeleteSession),
- SI_QX(SystemInvalidInfoClass4), /* it should be SI_XX */
+ SI_QX(SystemInvalidInfoClass4), /* it should be SI_XX */ // SystemSessionInformation?
SI_QX(SystemRangeStartInformation),
SI_QS(SystemVerifierInformation),
SI_XS(SystemAddVerifier),
OUT PULONG UnsafeResultLength)
{
KPROCESSOR_MODE PreviousMode;
- ULONG ResultLength;
+ ULONG ResultLength = 0;
NTSTATUS FStatus = STATUS_NOT_IMPLEMENTED;
PAGED_CODE();
ProbeForWriteUlong(UnsafeResultLength);
}
+ if (UnsafeResultLength)
+ *UnsafeResultLength = 0;
+
/*
- * Check the request is valid.
+ * Check if the request is valid.
*/
if (SystemInformationClass >= MAX_SYSTEM_INFO_CLASS)
{
projects / reactos.git / blobdiff