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* PROJECT: ReactOS Kernel * LICENSE: GPL - See COPYING in the top level directory * FILE: ntoskrnl/ps/query.c * PURPOSE: Process Manager: Thread/Process Query/Set Information * PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org) * Thomas Weidenmueller (w3seek@reactos.org) * Eric Kohl */
/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>#define NDEBUG#include <debug.h>
/* Debugging Level */ULONG PspTraceLevel = 0;
/* PRIVATE FUNCTIONS *********************************************************/
NTSTATUSNTAPIPsReferenceProcessFilePointer( _In_ PEPROCESS Process, _Outptr_ PFILE_OBJECT *FileObject){ PSECTION Section; PAGED_CODE();
/* Lock the process */ if (!ExAcquireRundownProtection(&Process->RundownProtect)) { return STATUS_PROCESS_IS_TERMINATING; }
/* Get the section */ Section = Process->SectionObject; if (Section) { /* Get the file object and reference it */ *FileObject = MmGetFileObjectForSection((PVOID)Section); ObReferenceObject(*FileObject); }
/* Release the protection */ ExReleaseRundownProtection(&Process->RundownProtect);
/* Return status */ return Section ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL;}
#if DBGstaticPCSTRPspDumpProcessInfoClassName( _In_ PROCESSINFOCLASS ProcessInformationClass){ static CHAR UnknownClassName[11];
#define DBG_PROCESS_INFO_CLASS(InfoClass) [InfoClass] = #InfoClass static const PCSTR ProcessInfoClasses[] = { DBG_PROCESS_INFO_CLASS(ProcessBasicInformation), DBG_PROCESS_INFO_CLASS(ProcessQuotaLimits), DBG_PROCESS_INFO_CLASS(ProcessVmCounters), DBG_PROCESS_INFO_CLASS(ProcessTimes), DBG_PROCESS_INFO_CLASS(ProcessBasePriority), DBG_PROCESS_INFO_CLASS(ProcessRaisePriority), DBG_PROCESS_INFO_CLASS(ProcessDebugPort), DBG_PROCESS_INFO_CLASS(ProcessExceptionPort), DBG_PROCESS_INFO_CLASS(ProcessAccessToken), DBG_PROCESS_INFO_CLASS(ProcessLdtInformation), DBG_PROCESS_INFO_CLASS(ProcessLdtSize), DBG_PROCESS_INFO_CLASS(ProcessDefaultHardErrorMode), DBG_PROCESS_INFO_CLASS(ProcessIoPortHandlers), DBG_PROCESS_INFO_CLASS(ProcessPooledUsageAndLimits), DBG_PROCESS_INFO_CLASS(ProcessWorkingSetWatch), DBG_PROCESS_INFO_CLASS(ProcessUserModeIOPL), DBG_PROCESS_INFO_CLASS(ProcessEnableAlignmentFaultFixup), DBG_PROCESS_INFO_CLASS(ProcessPriorityClass), DBG_PROCESS_INFO_CLASS(ProcessWx86Information), DBG_PROCESS_INFO_CLASS(ProcessHandleCount), DBG_PROCESS_INFO_CLASS(ProcessAffinityMask), DBG_PROCESS_INFO_CLASS(ProcessPriorityBoost), DBG_PROCESS_INFO_CLASS(ProcessDeviceMap), DBG_PROCESS_INFO_CLASS(ProcessSessionInformation), DBG_PROCESS_INFO_CLASS(ProcessForegroundInformation), DBG_PROCESS_INFO_CLASS(ProcessWow64Information), DBG_PROCESS_INFO_CLASS(ProcessImageFileName), DBG_PROCESS_INFO_CLASS(ProcessLUIDDeviceMapsEnabled), DBG_PROCESS_INFO_CLASS(ProcessBreakOnTermination), DBG_PROCESS_INFO_CLASS(ProcessDebugObjectHandle), DBG_PROCESS_INFO_CLASS(ProcessDebugFlags), DBG_PROCESS_INFO_CLASS(ProcessHandleTracing), DBG_PROCESS_INFO_CLASS(ProcessIoPriority), DBG_PROCESS_INFO_CLASS(ProcessExecuteFlags), DBG_PROCESS_INFO_CLASS(ProcessTlsInformation), DBG_PROCESS_INFO_CLASS(ProcessCookie), DBG_PROCESS_INFO_CLASS(ProcessImageInformation), DBG_PROCESS_INFO_CLASS(ProcessCycleTime), DBG_PROCESS_INFO_CLASS(ProcessPagePriority), DBG_PROCESS_INFO_CLASS(ProcessInstrumentationCallback), DBG_PROCESS_INFO_CLASS(ProcessThreadStackAllocation), DBG_PROCESS_INFO_CLASS(ProcessWorkingSetWatchEx), DBG_PROCESS_INFO_CLASS(ProcessImageFileNameWin32), DBG_PROCESS_INFO_CLASS(ProcessImageFileMapping), DBG_PROCESS_INFO_CLASS(ProcessAffinityUpdateMode), DBG_PROCESS_INFO_CLASS(ProcessMemoryAllocationMode), DBG_PROCESS_INFO_CLASS(ProcessGroupInformation), DBG_PROCESS_INFO_CLASS(ProcessConsoleHostProcess), DBG_PROCESS_INFO_CLASS(ProcessWindowInformation), };#undef DBG_PROCESS_INFO_CLASS
if (ProcessInformationClass < RTL_NUMBER_OF(ProcessInfoClasses)) { return ProcessInfoClasses[ProcessInformationClass]; }
sprintf(UnknownClassName, "%lu", ProcessInformationClass); return UnknownClassName;}
staticPCSTRPspDumpThreadInfoClassName( _In_ THREADINFOCLASS ThreadInformationClass){ static CHAR UnknownClassName[11];
#define DBG_THREAD_INFO_CLASS(InfoClass) [InfoClass] = #InfoClass static const PCSTR ThreadInfoClasses[] = { DBG_THREAD_INFO_CLASS(ThreadBasicInformation), DBG_THREAD_INFO_CLASS(ThreadTimes), DBG_THREAD_INFO_CLASS(ThreadPriority), DBG_THREAD_INFO_CLASS(ThreadBasePriority), DBG_THREAD_INFO_CLASS(ThreadAffinityMask), DBG_THREAD_INFO_CLASS(ThreadImpersonationToken), DBG_THREAD_INFO_CLASS(ThreadDescriptorTableEntry), DBG_THREAD_INFO_CLASS(ThreadEnableAlignmentFaultFixup), DBG_THREAD_INFO_CLASS(ThreadEventPair_Reusable), DBG_THREAD_INFO_CLASS(ThreadQuerySetWin32StartAddress), DBG_THREAD_INFO_CLASS(ThreadZeroTlsCell), DBG_THREAD_INFO_CLASS(ThreadPerformanceCount), DBG_THREAD_INFO_CLASS(ThreadAmILastThread), DBG_THREAD_INFO_CLASS(ThreadIdealProcessor), DBG_THREAD_INFO_CLASS(ThreadPriorityBoost), DBG_THREAD_INFO_CLASS(ThreadSetTlsArrayAddress), DBG_THREAD_INFO_CLASS(ThreadIsIoPending), DBG_THREAD_INFO_CLASS(ThreadHideFromDebugger), DBG_THREAD_INFO_CLASS(ThreadBreakOnTermination), DBG_THREAD_INFO_CLASS(ThreadSwitchLegacyState), DBG_THREAD_INFO_CLASS(ThreadIsTerminated), DBG_THREAD_INFO_CLASS(ThreadLastSystemCall), DBG_THREAD_INFO_CLASS(ThreadIoPriority), DBG_THREAD_INFO_CLASS(ThreadCycleTime), DBG_THREAD_INFO_CLASS(ThreadPagePriority), DBG_THREAD_INFO_CLASS(ThreadActualBasePriority), DBG_THREAD_INFO_CLASS(ThreadTebInformation), DBG_THREAD_INFO_CLASS(ThreadCSwitchMon), DBG_THREAD_INFO_CLASS(ThreadCSwitchPmu), DBG_THREAD_INFO_CLASS(ThreadWow64Context), DBG_THREAD_INFO_CLASS(ThreadGroupInformation), DBG_THREAD_INFO_CLASS(ThreadUmsInformation), DBG_THREAD_INFO_CLASS(ThreadCounterProfiling), DBG_THREAD_INFO_CLASS(ThreadIdealProcessorEx), DBG_THREAD_INFO_CLASS(ThreadCpuAccountingInformation), DBG_THREAD_INFO_CLASS(ThreadSuspendCount), DBG_THREAD_INFO_CLASS(ThreadHeterogeneousCpuPolicy), DBG_THREAD_INFO_CLASS(ThreadContainerId), DBG_THREAD_INFO_CLASS(ThreadNameInformation), DBG_THREAD_INFO_CLASS(ThreadSelectedCpuSets), DBG_THREAD_INFO_CLASS(ThreadSystemThreadInformation), DBG_THREAD_INFO_CLASS(ThreadActualGroupAffinity), DBG_THREAD_INFO_CLASS(ThreadDynamicCodePolicyInfo), DBG_THREAD_INFO_CLASS(ThreadExplicitCaseSensitivity), DBG_THREAD_INFO_CLASS(ThreadWorkOnBehalfTicket), DBG_THREAD_INFO_CLASS(ThreadSubsystemInformation), DBG_THREAD_INFO_CLASS(ThreadDbgkWerReportActive), DBG_THREAD_INFO_CLASS(ThreadAttachContainer), DBG_THREAD_INFO_CLASS(ThreadManageWritesToExecutableMemory), DBG_THREAD_INFO_CLASS(ThreadPowerThrottlingState), DBG_THREAD_INFO_CLASS(ThreadWorkloadClass), DBG_THREAD_INFO_CLASS(ThreadCreateStateChange), DBG_THREAD_INFO_CLASS(ThreadApplyStateChange), DBG_THREAD_INFO_CLASS(ThreadStrongerBadHandleChecks), DBG_THREAD_INFO_CLASS(ThreadEffectiveIoPriority), DBG_THREAD_INFO_CLASS(ThreadEffectivePagePriority), };#undef DBG_THREAD_INFO_CLASS
if (ThreadInformationClass < RTL_NUMBER_OF(ThreadInfoClasses)) { return ThreadInfoClasses[ThreadInformationClass]; }
sprintf(UnknownClassName, "%lu", ThreadInformationClass); return UnknownClassName;}#endif // #if DBG
/* PUBLIC FUNCTIONS **********************************************************/
/* * @implemented */NTSTATUSNTAPINtQueryInformationProcess( _In_ HANDLE ProcessHandle, _In_ PROCESSINFOCLASS ProcessInformationClass, _Out_writes_bytes_to_opt_(ProcessInformationLength, *ReturnLength) PVOID ProcessInformation, _In_ ULONG ProcessInformationLength, _Out_opt_ PULONG ReturnLength){ PEPROCESS Process; KPROCESSOR_MODE PreviousMode = ExGetPreviousMode(); NTSTATUS Status; ULONG Length = 0;
PAGED_CODE();
/* Validate the information class */ Status = DefaultQueryInfoBufferCheck(ProcessInformationClass, PsProcessInfoClass, RTL_NUMBER_OF(PsProcessInfoClass), ICIF_PROBE_READ, ProcessInformation, ProcessInformationLength, ReturnLength, NULL, PreviousMode); if (!NT_SUCCESS(Status)) {#if DBG DPRINT1("NtQueryInformationProcess(ProcessInformationClass: %s): Class validation failed! (Status: 0x%lx)\n", PspDumpProcessInfoClassName(ProcessInformationClass), Status);#endif return Status; }
if (((ProcessInformationClass == ProcessCookie) || (ProcessInformationClass == ProcessImageInformation)) && (ProcessHandle != NtCurrentProcess())) { /* * Retrieving the process cookie is only allowed for the calling process * itself! XP only allows NtCurrentProcess() as process handles even if * a real handle actually represents the current process. */ return STATUS_INVALID_PARAMETER; }
/* Check the information class */ switch (ProcessInformationClass) { /* Basic process information */ case ProcessBasicInformation: { PPROCESS_BASIC_INFORMATION ProcessBasicInfo = (PPROCESS_BASIC_INFORMATION)ProcessInformation;
if (ProcessInformationLength != sizeof(PROCESS_BASIC_INFORMATION)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(PROCESS_BASIC_INFORMATION);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect writes with SEH */ _SEH2_TRY { /* Write all the information from the EPROCESS/KPROCESS */ ProcessBasicInfo->ExitStatus = Process->ExitStatus; ProcessBasicInfo->PebBaseAddress = Process->Peb; ProcessBasicInfo->AffinityMask = Process->Pcb.Affinity; ProcessBasicInfo->UniqueProcessId = (ULONG_PTR)Process-> UniqueProcessId; ProcessBasicInfo->InheritedFromUniqueProcessId = (ULONG_PTR)Process->InheritedFromUniqueProcessId; ProcessBasicInfo->BasePriority = Process->Pcb.BasePriority;
} _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Process quota limits */ case ProcessQuotaLimits: { QUOTA_LIMITS_EX QuotaLimits; BOOLEAN Extended;
if (ProcessInformationLength != sizeof(QUOTA_LIMITS) && ProcessInformationLength != sizeof(QUOTA_LIMITS_EX)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = ProcessInformationLength; Extended = (Length == sizeof(QUOTA_LIMITS_EX));
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Indicate success */ Status = STATUS_SUCCESS;
RtlZeroMemory(&QuotaLimits, sizeof(QuotaLimits));
/* Get max/min working set sizes */ QuotaLimits.MaximumWorkingSetSize = Process->Vm.MaximumWorkingSetSize << PAGE_SHIFT; QuotaLimits.MinimumWorkingSetSize = Process->Vm.MinimumWorkingSetSize << PAGE_SHIFT;
/* Get default time limits */ QuotaLimits.TimeLimit.QuadPart = -1LL;
/* Is quota block a default one? */ if (Process->QuotaBlock == &PspDefaultQuotaBlock) { /* Get default pools and pagefile limits */ QuotaLimits.PagedPoolLimit = (SIZE_T)-1; QuotaLimits.NonPagedPoolLimit = (SIZE_T)-1; QuotaLimits.PagefileLimit = (SIZE_T)-1; } else { /* Get limits from non-default quota block */ QuotaLimits.PagedPoolLimit = Process->QuotaBlock->QuotaEntry[PsPagedPool].Limit; QuotaLimits.NonPagedPoolLimit = Process->QuotaBlock->QuotaEntry[PsNonPagedPool].Limit; QuotaLimits.PagefileLimit = Process->QuotaBlock->QuotaEntry[PsPageFile].Limit; }
/* Get additional information, if needed */ if (Extended) { QuotaLimits.Flags |= (Process->Vm.Flags.MaximumWorkingSetHard ? QUOTA_LIMITS_HARDWS_MAX_ENABLE : QUOTA_LIMITS_HARDWS_MAX_DISABLE); QuotaLimits.Flags |= (Process->Vm.Flags.MinimumWorkingSetHard ? QUOTA_LIMITS_HARDWS_MIN_ENABLE : QUOTA_LIMITS_HARDWS_MIN_DISABLE);
/* FIXME: Get the correct information */ //QuotaLimits.WorkingSetLimit = (SIZE_T)-1; // Not used on Win2k3, it is set to 0 QuotaLimits.CpuRateLimit.RateData = 0; }
/* Protect writes with SEH */ _SEH2_TRY { RtlCopyMemory(ProcessInformation, &QuotaLimits, Length); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
case ProcessIoCounters: { PIO_COUNTERS IoCounters = (PIO_COUNTERS)ProcessInformation; PROCESS_VALUES ProcessValues;
if (ProcessInformationLength != sizeof(IO_COUNTERS)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
Length = sizeof(IO_COUNTERS);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Query IO counters from the process */ KeQueryValuesProcess(&Process->Pcb, &ProcessValues);
_SEH2_TRY { RtlCopyMemory(IoCounters, &ProcessValues.IoInfo, sizeof(IO_COUNTERS)); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Ignore exception */ } _SEH2_END;
/* Set status to success in any case */ Status = STATUS_SUCCESS;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Timing */ case ProcessTimes: { PKERNEL_USER_TIMES ProcessTime = (PKERNEL_USER_TIMES)ProcessInformation; ULONG UserTime, KernelTime;
/* Set the return length */ if (ProcessInformationLength != sizeof(KERNEL_USER_TIMES)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
Length = sizeof(KERNEL_USER_TIMES);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect writes with SEH */ _SEH2_TRY { /* Copy time information from EPROCESS/KPROCESS */ KernelTime = KeQueryRuntimeProcess(&Process->Pcb, &UserTime); ProcessTime->CreateTime = Process->CreateTime; ProcessTime->UserTime.QuadPart = (LONGLONG)UserTime * KeMaximumIncrement; ProcessTime->KernelTime.QuadPart = (LONGLONG)KernelTime * KeMaximumIncrement; ProcessTime->ExitTime = Process->ExitTime; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Process Debug Port */ case ProcessDebugPort:
if (ProcessInformationLength != sizeof(HANDLE)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(HANDLE);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect write with SEH */ _SEH2_TRY { /* Return whether or not we have a debug port */ *(PHANDLE)ProcessInformation = (Process->DebugPort ? (HANDLE)-1 : NULL); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
case ProcessHandleCount: { ULONG HandleCount;
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length*/ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Count the number of handles this process has */ HandleCount = ObGetProcessHandleCount(Process);
/* Protect write in SEH */ _SEH2_TRY { /* Return the count of handles */ *(PULONG)ProcessInformation = HandleCount; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Session ID for the process */ case ProcessSessionInformation: { PPROCESS_SESSION_INFORMATION SessionInfo = (PPROCESS_SESSION_INFORMATION)ProcessInformation;
if (ProcessInformationLength != sizeof(PROCESS_SESSION_INFORMATION)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length*/ Length = sizeof(PROCESS_SESSION_INFORMATION);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for write safety */ _SEH2_TRY { /* Write back the Session ID */ SessionInfo->SessionId = PsGetProcessSessionId(Process); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Virtual Memory Statistics */ case ProcessVmCounters: { PVM_COUNTERS VmCounters = (PVM_COUNTERS)ProcessInformation;
/* Validate the input length */ if ((ProcessInformationLength != sizeof(VM_COUNTERS)) && (ProcessInformationLength != sizeof(VM_COUNTERS_EX))) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for write safety */ _SEH2_TRY { /* Return data from EPROCESS */ VmCounters->PeakVirtualSize = Process->PeakVirtualSize; VmCounters->VirtualSize = Process->VirtualSize; VmCounters->PageFaultCount = Process->Vm.PageFaultCount; VmCounters->PeakWorkingSetSize = Process->Vm.PeakWorkingSetSize; VmCounters->WorkingSetSize = Process->Vm.WorkingSetSize; VmCounters->QuotaPeakPagedPoolUsage = Process->QuotaPeak[PsPagedPool]; VmCounters->QuotaPagedPoolUsage = Process->QuotaUsage[PsPagedPool]; VmCounters->QuotaPeakNonPagedPoolUsage = Process->QuotaPeak[PsNonPagedPool]; VmCounters->QuotaNonPagedPoolUsage = Process->QuotaUsage[PsNonPagedPool]; VmCounters->PagefileUsage = Process->QuotaUsage[PsPageFile] << PAGE_SHIFT; VmCounters->PeakPagefileUsage = Process->QuotaPeak[PsPageFile] << PAGE_SHIFT; //VmCounters->PrivateUsage = Process->CommitCharge << PAGE_SHIFT; //
/* Set the return length */ Length = ProcessInformationLength; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Hard Error Processing Mode */ case ProcessDefaultHardErrorMode:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length*/ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for writing back data */ _SEH2_TRY { /* Write the current processing mode */ *(PULONG)ProcessInformation = Process-> DefaultHardErrorProcessing; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
/* Priority Boosting status */ case ProcessPriorityBoost:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for writing back data */ _SEH2_TRY { /* Return boost status */ *(PULONG)ProcessInformation = Process->Pcb.DisableBoost ? TRUE : FALSE; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
/* DOS Device Map */ case ProcessDeviceMap: { ULONG Flags;
if (ProcessInformationLength == sizeof(PROCESS_DEVICEMAP_INFORMATION_EX)) { /* Protect read in SEH */ _SEH2_TRY { PPROCESS_DEVICEMAP_INFORMATION_EX DeviceMapEx = ProcessInformation;
Flags = DeviceMapEx->Flags; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Only one flag is supported and it needs LUID mappings */ if ((Flags & ~PROCESS_LUID_DOSDEVICES_ONLY) != 0 || !ObIsLUIDDeviceMapsEnabled()) { Status = STATUS_INVALID_PARAMETER; break; } } else { /* This has to be the size of the Query union field for x64 compatibility! */ if (ProcessInformationLength != RTL_FIELD_SIZE(PROCESS_DEVICEMAP_INFORMATION, Query)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* No flags for standard call */ Flags = 0; }
/* Set the return length */ Length = ProcessInformationLength;
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Query the device map information */ Status = ObQueryDeviceMapInformation(Process, ProcessInformation, Flags);
/* Dereference the process */ ObDereferenceObject(Process); break; }
/* Priority class */ case ProcessPriorityClass: { PPROCESS_PRIORITY_CLASS PsPriorityClass = (PPROCESS_PRIORITY_CLASS)ProcessInformation;
if (ProcessInformationLength != sizeof(PROCESS_PRIORITY_CLASS)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length*/ Length = sizeof(PROCESS_PRIORITY_CLASS);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for writing back data */ _SEH2_TRY { /* Return current priority class */ PsPriorityClass->PriorityClass = Process->PriorityClass; PsPriorityClass->Foreground = FALSE; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break; }
case ProcessImageFileName: { PUNICODE_STRING ImageName;
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Get the image path */ Status = SeLocateProcessImageName(Process, &ImageName); if (NT_SUCCESS(Status)) { /* Set the return length */ Length = ImageName->MaximumLength + sizeof(OBJECT_NAME_INFORMATION);
/* Make sure it's large enough */ if (Length <= ProcessInformationLength) { /* Enter SEH to protect write */ _SEH2_TRY { /* Copy it */ RtlCopyMemory(ProcessInformation, ImageName, Length);
/* Update pointer */ ((PUNICODE_STRING)ProcessInformation)->Buffer = (PWSTR)((PUNICODE_STRING)ProcessInformation + 1); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; } else { /* Buffer too small */ Status = STATUS_INFO_LENGTH_MISMATCH; }
/* Free the image path */ ExFreePoolWithTag(ImageName, TAG_SEPA); } /* Dereference the process */ ObDereferenceObject(Process); break; }
#if (NTDDI_VERSION >= NTDDI_VISTA) || (DLL_EXPORT_VERSION >= _WIN32_WINNT_VISTA) case ProcessImageFileNameWin32: { PFILE_OBJECT FileObject; POBJECT_NAME_INFORMATION ObjectNameInformation;
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, // FIXME: Use PROCESS_QUERY_LIMITED_INFORMATION if implemented PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) { break; }
/* Get the image path */ Status = PsReferenceProcessFilePointer(Process, &FileObject); ObDereferenceObject(Process); if (!NT_SUCCESS(Status)) { break; } Status = IoQueryFileDosDeviceName(FileObject, &ObjectNameInformation); ObDereferenceObject(FileObject); if (!NT_SUCCESS(Status)) { break; }
/* Determine return length and output */ Length = sizeof(UNICODE_STRING) + ObjectNameInformation->Name.MaximumLength; if (Length <= ProcessInformationLength) { _SEH2_TRY { PUNICODE_STRING ImageName = (PUNICODE_STRING)ProcessInformation; ImageName->Length = ObjectNameInformation->Name.Length; ImageName->MaximumLength = ObjectNameInformation->Name.MaximumLength; if (ObjectNameInformation->Name.MaximumLength) { ImageName->Buffer = (PWSTR)(ImageName + 1); RtlCopyMemory(ImageName->Buffer, ObjectNameInformation->Name.Buffer, ObjectNameInformation->Name.MaximumLength); } else { ASSERT(ImageName->Length == 0); ImageName->Buffer = NULL; } } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { Status = _SEH2_GetExceptionCode(); } _SEH2_END; } else { Status = STATUS_INFO_LENGTH_MISMATCH; } ExFreePool(ObjectNameInformation);
break; }#endif /* (NTDDI_VERSION >= NTDDI_VISTA) || (DLL_EXPORT_VERSION >= _WIN32_WINNT_VISTA) */
case ProcessDebugFlags:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length*/ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for writing back data */ _SEH2_TRY { /* Return the debug flag state */ *(PULONG)ProcessInformation = Process->NoDebugInherit ? 0 : 1; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
case ProcessBreakOnTermination:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Enter SEH for writing back data */ _SEH2_TRY { /* Return the BreakOnTermination state */ *(PULONG)ProcessInformation = Process->BreakOnTermination; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
/* Per-process security cookie */ case ProcessCookie: { ULONG Cookie;
if (ProcessInformationLength != sizeof(ULONG)) { /* Length size wrong, bail out */ Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Get the current process and cookie */ Process = PsGetCurrentProcess(); Cookie = Process->Cookie; if (!Cookie) { LARGE_INTEGER SystemTime; ULONG NewCookie; PKPRCB Prcb;
/* Generate a new cookie */ KeQuerySystemTime(&SystemTime); Prcb = KeGetCurrentPrcb(); NewCookie = Prcb->KeSystemCalls ^ Prcb->InterruptTime ^ SystemTime.u.LowPart ^ SystemTime.u.HighPart;
/* Set the new cookie or return the current one */ Cookie = InterlockedCompareExchange((LONG*)&Process->Cookie, NewCookie, Cookie); if (!Cookie) Cookie = NewCookie;
/* Set the return length */ Length = sizeof(ULONG); }
/* Indicate success */ Status = STATUS_SUCCESS;
/* Enter SEH to protect write */ _SEH2_TRY { /* Write back the cookie */ *(PULONG)ProcessInformation = Cookie; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; break; }
case ProcessImageInformation:
if (ProcessInformationLength != sizeof(SECTION_IMAGE_INFORMATION)) { /* Break out */ Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the length required and validate it */ Length = sizeof(SECTION_IMAGE_INFORMATION);
/* Indicate success */ Status = STATUS_SUCCESS;
/* Enter SEH to protect write */ _SEH2_TRY { MmGetImageInformation((PSECTION_IMAGE_INFORMATION)ProcessInformation); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; break;
case ProcessDebugObjectHandle: { HANDLE DebugPort = NULL;
if (ProcessInformationLength != sizeof(HANDLE)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(HANDLE);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Get the debug port. Continue even if this fails. */ Status = DbgkOpenProcessDebugPort(Process, PreviousMode, &DebugPort);
/* Let go of the process */ ObDereferenceObject(Process);
/* Protect write in SEH */ _SEH2_TRY { /* Return debug port's handle */ *(PHANDLE)ProcessInformation = DebugPort; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { if (DebugPort) ObCloseHandle(DebugPort, PreviousMode);
/* Get the exception code. * Note: This overwrites any previous failure status. */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; break; }
case ProcessHandleTracing: DPRINT1("Handle tracing not implemented: %lu\n", ProcessInformationClass); Status = STATUS_NOT_IMPLEMENTED; break;
case ProcessLUIDDeviceMapsEnabled:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG);
/* Indicate success */ Status = STATUS_SUCCESS;
/* Protect write in SEH */ _SEH2_TRY { /* Query Ob */ *(PULONG)ProcessInformation = ObIsLUIDDeviceMapsEnabled(); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; break;
case ProcessWx86Information:
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect write in SEH */ _SEH2_TRY { /* Return if the flag is set */ *(PULONG)ProcessInformation = (ULONG)Process->VdmAllowed; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the process */ ObDereferenceObject(Process); break;
case ProcessWow64Information: { ULONG_PTR Wow64 = 0;
if (ProcessInformationLength != sizeof(ULONG_PTR)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG_PTR);
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_QUERY_INFORMATION, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) break;
#ifdef _WIN64 /* Make sure the process isn't dying */ if (ExAcquireRundownProtection(&Process->RundownProtect)) { /* Get the WOW64 process structure */ Wow64 = (ULONG_PTR)Process->Wow64Process; /* Release the lock */ ExReleaseRundownProtection(&Process->RundownProtect); }#endif
/* Dereference the process */ ObDereferenceObject(Process);
/* Protect write with SEH */ _SEH2_TRY { /* Return the Wow64 process information */ *(PULONG_PTR)ProcessInformation = Wow64; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; break; }
case ProcessExecuteFlags: { ULONG ExecuteOptions = 0;
if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Set the return length */ Length = sizeof(ULONG);
if (ProcessHandle != NtCurrentProcess()) { Status = STATUS_INVALID_PARAMETER; break; }
/* Get the options */ Status = MmGetExecuteOptions(&ExecuteOptions); if (NT_SUCCESS(Status)) { /* Protect write with SEH */ _SEH2_TRY { /* Return them */ *(PULONG)ProcessInformation = ExecuteOptions; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; } break; }
case ProcessLdtInformation: DPRINT1("VDM/16-bit not implemented: %lu\n", ProcessInformationClass); Status = STATUS_NOT_IMPLEMENTED; break;
case ProcessWorkingSetWatch: DPRINT1("WS Watch not implemented: %lu\n", ProcessInformationClass); Status = STATUS_NOT_IMPLEMENTED; break;
case ProcessPooledUsageAndLimits: DPRINT1("Pool limits not implemented: %lu\n", ProcessInformationClass); Status = STATUS_NOT_IMPLEMENTED; break;
/* Not supported by Server 2003 */ default:#if DBG DPRINT1("Unsupported info class: %s\n", PspDumpProcessInfoClassName(ProcessInformationClass));#endif Status = STATUS_INVALID_INFO_CLASS; }
/* Check if caller wants the return length and if there is one */ if (ReturnLength != NULL && Length != 0) { /* Protect write with SEH */ _SEH2_TRY { *ReturnLength = Length; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code. * Note: This overwrites any previous failure status. */ Status = _SEH2_GetExceptionCode(); } _SEH2_END; }
return Status;}
/* * @implemented */NTSTATUSNTAPINtSetInformationProcess( _In_ HANDLE ProcessHandle, _In_ PROCESSINFOCLASS ProcessInformationClass, _In_reads_bytes_(ProcessInformationLength) PVOID ProcessInformation, _In_ ULONG ProcessInformationLength){ PEPROCESS Process; KPROCESSOR_MODE PreviousMode = ExGetPreviousMode(); ACCESS_MASK Access; NTSTATUS Status; HANDLE PortHandle = NULL; HANDLE TokenHandle = NULL; HANDLE DirectoryHandle = NULL; PROCESS_SESSION_INFORMATION SessionInfo = {0}; PROCESS_PRIORITY_CLASS PriorityClass = {0}; PROCESS_FOREGROUND_BACKGROUND Foreground = {0}; PVOID ExceptionPort; ULONG Break; KAFFINITY ValidAffinity, Affinity = 0; KPRIORITY BasePriority = 0; UCHAR MemoryPriority = 0; BOOLEAN DisableBoost = 0; ULONG DefaultHardErrorMode = 0; ULONG DebugFlags = 0, EnableFixup = 0, Boost = 0; ULONG NoExecute = 0, VdmPower = 0; BOOLEAN HasPrivilege; PLIST_ENTRY Next; PETHREAD Thread; PAGED_CODE();
/* Validate the information class */ Status = DefaultSetInfoBufferCheck(ProcessInformationClass, PsProcessInfoClass, RTL_NUMBER_OF(PsProcessInfoClass), ProcessInformation, ProcessInformationLength, PreviousMode); if (!NT_SUCCESS(Status)) {#if DBG DPRINT1("NtSetInformationProcess(ProcessInformationClass: %s): Class validation failed! (Status: 0x%lx)\n", PspDumpProcessInfoClassName(ProcessInformationClass), Status);#endif return Status; }
/* Check what class this is */ Access = PROCESS_SET_INFORMATION; if (ProcessInformationClass == ProcessSessionInformation) { /* Setting the Session ID needs a special mask */ Access |= PROCESS_SET_SESSIONID; } else if (ProcessInformationClass == ProcessExceptionPort) { /* Setting the exception port needs a special mask */ Access |= PROCESS_SUSPEND_RESUME; }
/* Reference the process */ Status = ObReferenceObjectByHandle(ProcessHandle, Access, PsProcessType, PreviousMode, (PVOID*)&Process, NULL); if (!NT_SUCCESS(Status)) return Status;
/* Check what kind of information class this is */ switch (ProcessInformationClass) { case ProcessWx86Information:
/* Check buffer length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Capture the boolean */ VdmPower = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Getting VDM powers requires the SeTcbPrivilege */ if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ Status = STATUS_PRIVILEGE_NOT_HELD; DPRINT1("Need TCB privilege\n"); break; }
/* Set or clear the flag */ if (VdmPower) { PspSetProcessFlag(Process, PSF_VDM_ALLOWED_BIT); } else { PspClearProcessFlag(Process, PSF_VDM_ALLOWED_BIT); } break;
/* Error/Exception Port */ case ProcessExceptionPort:
/* Check buffer length */ if (ProcessInformationLength != sizeof(HANDLE)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Capture the handle */ PortHandle = *(PHANDLE)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Setting the error port requires the SeTcbPrivilege */ if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ Status = STATUS_PRIVILEGE_NOT_HELD; break; }
/* Get the LPC Port */ Status = ObReferenceObjectByHandle(PortHandle, 0, LpcPortObjectType, PreviousMode, (PVOID)&ExceptionPort, NULL); if (!NT_SUCCESS(Status)) break;
/* Change the pointer */ if (InterlockedCompareExchangePointer(&Process->ExceptionPort, ExceptionPort, NULL)) { /* We already had one, fail */ ObDereferenceObject(ExceptionPort); Status = STATUS_PORT_ALREADY_SET; } break;
/* Security Token */ case ProcessAccessToken:
/* Check buffer length */ if (ProcessInformationLength != sizeof(PROCESS_ACCESS_TOKEN)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Save the token handle */ TokenHandle = ((PPROCESS_ACCESS_TOKEN)ProcessInformation)-> Token; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Assign the actual token */ Status = PspSetPrimaryToken(Process, TokenHandle, NULL); break;
/* Hard error processing */ case ProcessDefaultHardErrorMode:
/* Check buffer length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { DefaultHardErrorMode = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Set the mode */ Process->DefaultHardErrorProcessing = DefaultHardErrorMode;
/* Call Ke for the update */ if (DefaultHardErrorMode & SEM_NOALIGNMENTFAULTEXCEPT) { KeSetAutoAlignmentProcess(&Process->Pcb, TRUE); } else { KeSetAutoAlignmentProcess(&Process->Pcb, FALSE); } Status = STATUS_SUCCESS; break;
/* Session ID */ case ProcessSessionInformation:
/* Check buffer length */ if (ProcessInformationLength != sizeof(PROCESS_SESSION_INFORMATION)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for capture */ _SEH2_TRY { /* Capture the caller's buffer */ SessionInfo = *(PPROCESS_SESSION_INFORMATION)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Setting the session id requires the SeTcbPrivilege */ if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ Status = STATUS_PRIVILEGE_NOT_HELD; break; }
/* * Since we cannot change the session ID of the given * process anymore because it is set once and for all * at process creation time and because it is stored * inside the Process->Session structure managed by MM, * we fake changing it: we just return success if the * user-defined value is the same as the session ID of * the process, and otherwise we fail. */ if (SessionInfo.SessionId == PsGetProcessSessionId(Process)) { Status = STATUS_SUCCESS; } else { Status = STATUS_ACCESS_DENIED; }
break;
case ProcessPriorityClass:
/* Check buffer length */ if (ProcessInformationLength != sizeof(PROCESS_PRIORITY_CLASS)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for capture */ _SEH2_TRY { /* Capture the caller's buffer */ PriorityClass = *(PPROCESS_PRIORITY_CLASS)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Return the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Check for invalid PriorityClass value */ if (PriorityClass.PriorityClass > PROCESS_PRIORITY_CLASS_ABOVE_NORMAL) { Status = STATUS_INVALID_PARAMETER; break; }
if ((PriorityClass.PriorityClass != Process->PriorityClass) && (PriorityClass.PriorityClass == PROCESS_PRIORITY_CLASS_REALTIME)) { /* Check the privilege */ HasPrivilege = SeCheckPrivilegedObject(SeIncreaseBasePriorityPrivilege, ProcessHandle, PROCESS_SET_INFORMATION, PreviousMode); if (!HasPrivilege) { ObDereferenceObject(Process); DPRINT1("Privilege to change priority to realtime lacking\n"); return STATUS_PRIVILEGE_NOT_HELD; } }
/* Check if we have a job */ if (Process->Job) { DPRINT1("Jobs not yet supported\n"); }
/* Set process priority class */ Process->PriorityClass = PriorityClass.PriorityClass;
/* Set process priority mode (foreground or background) */ PsSetProcessPriorityByClass(Process, PriorityClass.Foreground ? PsProcessPriorityForeground : PsProcessPriorityBackground); Status = STATUS_SUCCESS; break;
case ProcessForegroundInformation:
/* Check buffer length */ if (ProcessInformationLength != sizeof(PROCESS_FOREGROUND_BACKGROUND)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for capture */ _SEH2_TRY { /* Capture the caller's buffer */ Foreground = *(PPROCESS_FOREGROUND_BACKGROUND)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Return the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Set process priority mode (foreground or background) */ PsSetProcessPriorityByClass(Process, Foreground.Foreground ? PsProcessPriorityForeground : PsProcessPriorityBackground); Status = STATUS_SUCCESS; break;
case ProcessBasePriority:
/* Validate input length */ if (ProcessInformationLength != sizeof(KPRIORITY)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { BasePriority = *(KPRIORITY*)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Extract the memory priority out of there */ if (BasePriority & 0x80000000) { MemoryPriority = MEMORY_PRIORITY_FOREGROUND; BasePriority &= ~0x80000000; } else { MemoryPriority = MEMORY_PRIORITY_BACKGROUND; }
/* Validate the number */ if ((BasePriority > HIGH_PRIORITY) || (BasePriority <= LOW_PRIORITY)) { ObDereferenceObject(Process); return STATUS_INVALID_PARAMETER; }
/* Check if the new base is higher */ if (BasePriority > Process->Pcb.BasePriority) { HasPrivilege = SeCheckPrivilegedObject(SeIncreaseBasePriorityPrivilege, ProcessHandle, PROCESS_SET_INFORMATION, PreviousMode); if (!HasPrivilege) { ObDereferenceObject(Process); DPRINT1("Privilege to change priority from %lx to %lx lacking\n", Process->Pcb.BasePriority, BasePriority); return STATUS_PRIVILEGE_NOT_HELD; } }
/* Call Ke */ KeSetPriorityAndQuantumProcess(&Process->Pcb, BasePriority, 0);
/* Now set the memory priority */ MmSetMemoryPriorityProcess(Process, MemoryPriority); Status = STATUS_SUCCESS; break;
case ProcessRaisePriority:
/* Validate input length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { Boost = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Make sure the process isn't dying */ if (ExAcquireRundownProtection(&Process->RundownProtect)) { /* Lock it */ KeEnterCriticalRegion(); ExAcquirePushLockShared(&Process->ProcessLock);
/* Loop the threads */ for (Next = Process->ThreadListHead.Flink; Next != &Process->ThreadListHead; Next = Next->Flink) { /* Call Ke for the thread */ Thread = CONTAINING_RECORD(Next, ETHREAD, ThreadListEntry); KeBoostPriorityThread(&Thread->Tcb, Boost); }
/* Release the lock and rundown */ ExReleasePushLockShared(&Process->ProcessLock); KeLeaveCriticalRegion(); ExReleaseRundownProtection(&Process->RundownProtect);
/* Set success code */ Status = STATUS_SUCCESS; } else { /* Avoid race conditions */ Status = STATUS_PROCESS_IS_TERMINATING; } break;
case ProcessBreakOnTermination:
/* Check buffer length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { Break = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Setting 'break on termination' requires the SeDebugPrivilege */ if (!SeSinglePrivilegeCheck(SeDebugPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ Status = STATUS_PRIVILEGE_NOT_HELD; break; }
/* Set or clear the flag */ if (Break) { PspSetProcessFlag(Process, PSF_BREAK_ON_TERMINATION_BIT); } else { PspClearProcessFlag(Process, PSF_BREAK_ON_TERMINATION_BIT); }
break;
case ProcessAffinityMask:
/* Check buffer length */ if (ProcessInformationLength != sizeof(KAFFINITY)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { Affinity = *(PKAFFINITY)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Make sure it's valid for the CPUs present */ ValidAffinity = Affinity & KeActiveProcessors; if (!Affinity || (ValidAffinity != Affinity)) { Status = STATUS_INVALID_PARAMETER; break; }
/* Check if it's within job affinity limits */ if (Process->Job) { /* Not yet implemented */ UNIMPLEMENTED; Status = STATUS_NOT_IMPLEMENTED; break; }
/* Make sure the process isn't dying */ if (ExAcquireRundownProtection(&Process->RundownProtect)) { /* Lock it */ KeEnterCriticalRegion(); ExAcquirePushLockShared(&Process->ProcessLock);
/* Call Ke to do the work */ KeSetAffinityProcess(&Process->Pcb, ValidAffinity);
/* Release the lock and rundown */ ExReleasePushLockShared(&Process->ProcessLock); KeLeaveCriticalRegion(); ExReleaseRundownProtection(&Process->RundownProtect);
/* Set success code */ Status = STATUS_SUCCESS; } else { /* Avoid race conditions */ Status = STATUS_PROCESS_IS_TERMINATING; } break;
/* Priority Boosting status */ case ProcessPriorityBoost:
/* Validate input length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { DisableBoost = *(PBOOLEAN)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Make sure the process isn't dying */ if (ExAcquireRundownProtection(&Process->RundownProtect)) { /* Lock it */ KeEnterCriticalRegion(); ExAcquirePushLockShared(&Process->ProcessLock);
/* Call Ke to do the work */ KeSetDisableBoostProcess(&Process->Pcb, DisableBoost);
/* Loop the threads too */ for (Next = Process->ThreadListHead.Flink; Next != &Process->ThreadListHead; Next = Next->Flink) { /* Call Ke for the thread */ Thread = CONTAINING_RECORD(Next, ETHREAD, ThreadListEntry); KeSetDisableBoostThread(&Thread->Tcb, DisableBoost); }
/* Release the lock and rundown */ ExReleasePushLockShared(&Process->ProcessLock); KeLeaveCriticalRegion(); ExReleaseRundownProtection(&Process->RundownProtect);
/* Set success code */ Status = STATUS_SUCCESS; } else { /* Avoid race conditions */ Status = STATUS_PROCESS_IS_TERMINATING; } break;
case ProcessDebugFlags:
/* Check buffer length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { DebugFlags = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Set the mode */ if (DebugFlags & ~1) { Status = STATUS_INVALID_PARAMETER; } else { if (DebugFlags & 1) { PspClearProcessFlag(Process, PSF_NO_DEBUG_INHERIT_BIT); } else { PspSetProcessFlag(Process, PSF_NO_DEBUG_INHERIT_BIT); } }
/* Done */ Status = STATUS_SUCCESS; break;
case ProcessEnableAlignmentFaultFixup:
/* Check buffer length */ if (ProcessInformationLength != sizeof(BOOLEAN)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { EnableFixup = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Set the mode */ if (EnableFixup) { Process->DefaultHardErrorProcessing |= SEM_NOALIGNMENTFAULTEXCEPT; } else { Process->DefaultHardErrorProcessing &= ~SEM_NOALIGNMENTFAULTEXCEPT; }
/* Call Ke for the update */ KeSetAutoAlignmentProcess(&Process->Pcb, FALSE); Status = STATUS_SUCCESS; break;
case ProcessUserModeIOPL:
/* Only TCB can do this */ if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ DPRINT1("Need TCB to set IOPL\n"); Status = STATUS_PRIVILEGE_NOT_HELD; break; }
/* Only supported on x86 */#if defined (_X86_) Ke386SetIOPL();#elif defined(_M_AMD64) /* On x64 this function isn't implemented. On Windows 2003 it returns success. On Vista+ it returns STATUS_NOT_IMPLEMENTED. */ if ((ExGetPreviousMode() != KernelMode) && (RtlRosGetAppcompatVersion() > _WIN32_WINNT_WS03)) { Status = STATUS_NOT_IMPLEMENTED; }#else Status = STATUS_NOT_IMPLEMENTED;#endif /* Done */ break;
case ProcessExecuteFlags:
/* Check buffer length */ if (ProcessInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
if (ProcessHandle != NtCurrentProcess()) { Status = STATUS_INVALID_PARAMETER; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { NoExecute = *(PULONG)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Call Mm for the update */ Status = MmSetExecuteOptions(NoExecute); break;
case ProcessDeviceMap:
/* Check buffer length */ if (ProcessInformationLength != sizeof(HANDLE)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Capture the handle */ DirectoryHandle = *(PHANDLE)ProcessInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Call Ob to set the device map */ Status = ObSetDeviceMap(Process, DirectoryHandle); break;
/* We currently don't implement any of these */ case ProcessLdtInformation: case ProcessLdtSize: case ProcessIoPortHandlers: DPRINT1("VDM/16-bit Request not implemented: %lu\n", ProcessInformationClass); Status = STATUS_NOT_IMPLEMENTED; break;
case ProcessQuotaLimits:
Status = PspSetQuotaLimits(Process, 1, ProcessInformation, ProcessInformationLength, PreviousMode); break;
case ProcessWorkingSetWatch: DPRINT1("WS watch not implemented\n"); Status = STATUS_NOT_IMPLEMENTED; break;
case ProcessHandleTracing: DPRINT1("Handle tracing not implemented\n"); Status = STATUS_NOT_IMPLEMENTED; break;
/* Anything else is invalid */ default:#if DBG DPRINT1("Invalid Server 2003 Info Class: %s\n", PspDumpProcessInfoClassName(ProcessInformationClass));#endif Status = STATUS_INVALID_INFO_CLASS; }
/* Dereference and return status */ ObDereferenceObject(Process); return Status;}
/* * @implemented */NTSTATUSNTAPINtSetInformationThread( _In_ HANDLE ThreadHandle, _In_ THREADINFOCLASS ThreadInformationClass, _In_reads_bytes_(ThreadInformationLength) PVOID ThreadInformation, _In_ ULONG ThreadInformationLength){ PETHREAD Thread; KPROCESSOR_MODE PreviousMode = ExGetPreviousMode(); NTSTATUS Status; HANDLE TokenHandle = NULL; KPRIORITY Priority = 0; KAFFINITY Affinity = 0, CombinedAffinity; PVOID Address = NULL; PEPROCESS Process; ULONG_PTR DisableBoost = 0; ULONG_PTR IdealProcessor = 0; ULONG_PTR Break = 0; PTEB Teb; ULONG_PTR TlsIndex = 0; PVOID *ExpansionSlots; PETHREAD ProcThread; BOOLEAN HasPrivilege; PAGED_CODE();
/* Validate the information class */ Status = DefaultSetInfoBufferCheck(ThreadInformationClass, PsThreadInfoClass, RTL_NUMBER_OF(PsThreadInfoClass), ThreadInformation, ThreadInformationLength, PreviousMode); if (!NT_SUCCESS(Status)) {#if DBG DPRINT1("NtSetInformationThread(ThreadInformationClass: %s): Class validation failed! (Status: 0x%lx)\n", PspDumpThreadInfoClassName(ThreadInformationClass), Status);#endif return Status; }
/* Check what kind of information class this is */ switch (ThreadInformationClass) { /* Thread priority */ case ThreadPriority:
/* Check buffer length */ if (ThreadInformationLength != sizeof(KPRIORITY)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ Priority = *(PLONG)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Validate it */ if ((Priority > HIGH_PRIORITY) || (Priority <= LOW_PRIORITY)) { /* Fail */ Status = STATUS_INVALID_PARAMETER; break; }
/* Check for the required privilege */ if (Priority >= LOW_REALTIME_PRIORITY) { HasPrivilege = SeCheckPrivilegedObject(SeIncreaseBasePriorityPrivilege, ThreadHandle, THREAD_SET_INFORMATION, PreviousMode); if (!HasPrivilege) { DPRINT1("Privilege to change priority to %lx lacking\n", Priority); return STATUS_PRIVILEGE_NOT_HELD; } }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set the priority */ KeSetPriorityThread(&Thread->Tcb, Priority);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadBasePriority:
/* Check buffer length */ if (ThreadInformationLength != sizeof(LONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ Priority = *(PLONG)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Validate it */ if ((Priority > THREAD_BASE_PRIORITY_MAX) || (Priority < THREAD_BASE_PRIORITY_MIN)) { /* These ones are OK */ if ((Priority != THREAD_BASE_PRIORITY_LOWRT + 1) && (Priority != THREAD_BASE_PRIORITY_IDLE - 1)) { /* Check if the process is real time */ if (PsGetCurrentProcess()->PriorityClass != PROCESS_PRIORITY_CLASS_REALTIME) { /* It isn't, fail */ Status = STATUS_INVALID_PARAMETER; break; } } }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set the base priority */ KeSetBasePriorityThread(&Thread->Tcb, Priority);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadAffinityMask:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG_PTR)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ Affinity = *(PULONG_PTR)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Validate it */ if (!Affinity) { /* Fail */ Status = STATUS_INVALID_PARAMETER; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Get the process */ Process = Thread->ThreadsProcess;
/* Try to acquire rundown */ if (ExAcquireRundownProtection(&Process->RundownProtect)) { /* Lock it */ KeEnterCriticalRegion(); ExAcquirePushLockShared(&Process->ProcessLock);
/* Combine masks */ CombinedAffinity = Affinity & Process->Pcb.Affinity; if (CombinedAffinity != Affinity) { /* Fail */ Status = STATUS_INVALID_PARAMETER; } else { /* Set the affinity */ KeSetAffinityThread(&Thread->Tcb, CombinedAffinity); }
/* Release the lock and rundown */ ExReleasePushLockShared(&Process->ProcessLock); KeLeaveCriticalRegion(); ExReleaseRundownProtection(&Process->RundownProtect); } else { /* Too late */ Status = STATUS_PROCESS_IS_TERMINATING; }
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadImpersonationToken:
/* Check buffer length */ if (ThreadInformationLength != sizeof(HANDLE)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Save the token handle */ TokenHandle = *(PHANDLE)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_THREAD_TOKEN, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Assign the actual token */ Status = PsAssignImpersonationToken(Thread, TokenHandle);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadQuerySetWin32StartAddress:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG_PTR)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ Address = *(PVOID*)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set the address */ Thread->Win32StartAddress = Address;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadIdealProcessor:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG_PTR)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ IdealProcessor = *(PULONG_PTR)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Validate it */ if (IdealProcessor > MAXIMUM_PROCESSORS) { /* Fail */ Status = STATUS_INVALID_PARAMETER; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set the ideal */ Status = KeSetIdealProcessorThread(&Thread->Tcb, (CCHAR)IdealProcessor);
/* Get the TEB and protect the thread */ Teb = Thread->Tcb.Teb; if ((Teb) && (ExAcquireRundownProtection(&Thread->RundownProtect))) { /* Save the ideal processor */ Teb->IdealProcessor = Thread->Tcb.IdealProcessor;
/* Release rundown protection */ ExReleaseRundownProtection(&Thread->RundownProtect); }
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadPriorityBoost:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG_PTR)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ DisableBoost = *(PULONG_PTR)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Call the kernel */ KeSetDisableBoostThread(&Thread->Tcb, (BOOLEAN)DisableBoost);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadZeroTlsCell:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Use SEH for capture */ _SEH2_TRY { /* Get the priority */ TlsIndex = *(PULONG)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get the exception code */ Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* This is only valid for the current thread */ if (Thread != PsGetCurrentThread()) { /* Fail */ Status = STATUS_INVALID_PARAMETER; ObDereferenceObject(Thread); break; }
/* Get the process */ Process = Thread->ThreadsProcess;
/* Loop the threads */ ProcThread = PsGetNextProcessThread(Process, NULL); while (ProcThread) { /* Acquire rundown */ if (ExAcquireRundownProtection(&ProcThread->RundownProtect)) { /* Get the TEB */ Teb = ProcThread->Tcb.Teb; if (Teb) { /* Check if we're in the expansion range */ if (TlsIndex > TLS_MINIMUM_AVAILABLE - 1) { if (TlsIndex < (TLS_MINIMUM_AVAILABLE + TLS_EXPANSION_SLOTS) - 1) { /* Check if we have expansion slots */ ExpansionSlots = Teb->TlsExpansionSlots; if (ExpansionSlots) { /* Clear the index */ ExpansionSlots[TlsIndex - TLS_MINIMUM_AVAILABLE] = 0; } } } else { /* Clear the index */ Teb->TlsSlots[TlsIndex] = NULL; } }
/* Release rundown */ ExReleaseRundownProtection(&ProcThread->RundownProtect); }
/* Go to the next thread */ ProcThread = PsGetNextProcessThread(Process, ProcThread); }
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadBreakOnTermination:
/* Check buffer length */ if (ThreadInformationLength != sizeof(ULONG)) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Enter SEH for direct buffer read */ _SEH2_TRY { Break = *(PULONG)ThreadInformation; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Break = 0; Status = _SEH2_GetExceptionCode(); _SEH2_YIELD(break); } _SEH2_END;
/* Setting 'break on termination' requires the SeDebugPrivilege */ if (!SeSinglePrivilegeCheck(SeDebugPrivilege, PreviousMode)) { /* We don't hold the privilege, bail out */ Status = STATUS_PRIVILEGE_NOT_HELD; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set or clear the flag */ if (Break) { PspSetCrossThreadFlag(Thread, CT_BREAK_ON_TERMINATION_BIT); } else { PspClearCrossThreadFlag(Thread, CT_BREAK_ON_TERMINATION_BIT); }
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadHideFromDebugger:
/* Check buffer length */ if (ThreadInformationLength != 0) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, THREAD_SET_INFORMATION, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Set the flag */ PspSetCrossThreadFlag(Thread, CT_HIDE_FROM_DEBUGGER_BIT);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
/* Anything else */ default: /* Not yet implemented */#if DBG DPRINT1("Not implemented: %s\n", PspDumpThreadInfoClassName(ThreadInformationClass));#endif Status = STATUS_NOT_IMPLEMENTED; }
return Status;}
/* * @implemented */NTSTATUSNTAPINtQueryInformationThread( _In_ HANDLE ThreadHandle, _In_ THREADINFOCLASS ThreadInformationClass, _Out_writes_bytes_to_opt_(ThreadInformationLength, *ReturnLength) PVOID ThreadInformation, _In_ ULONG ThreadInformationLength, _Out_opt_ PULONG ReturnLength){ PETHREAD Thread; KPROCESSOR_MODE PreviousMode = ExGetPreviousMode(); NTSTATUS Status; ULONG Access; ULONG Length = 0; PTHREAD_BASIC_INFORMATION ThreadBasicInfo = (PTHREAD_BASIC_INFORMATION)ThreadInformation; PKERNEL_USER_TIMES ThreadTime = (PKERNEL_USER_TIMES)ThreadInformation; KIRQL OldIrql; ULONG ThreadTerminated; PAGED_CODE();
/* Validate the information class */ Status = DefaultQueryInfoBufferCheck(ThreadInformationClass, PsThreadInfoClass, RTL_NUMBER_OF(PsThreadInfoClass), ICIF_PROBE_READ, ThreadInformation, ThreadInformationLength, ReturnLength, NULL, PreviousMode); if (!NT_SUCCESS(Status)) {#if DBG DPRINT1("NtQueryInformationThread(ThreadInformationClass: %s): Class validation failed! (Status: 0x%lx)\n", PspDumpThreadInfoClassName(ThreadInformationClass), Status);#endif return Status; }
/* Check what class this is */ Access = THREAD_QUERY_INFORMATION;
/* Check what kind of information class this is */ switch (ThreadInformationClass) { /* Basic thread information */ case ThreadBasicInformation:
/* Set the return length */ Length = sizeof(THREAD_BASIC_INFORMATION);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect writes with SEH */ _SEH2_TRY { /* Write all the information from the ETHREAD/KTHREAD */ ThreadBasicInfo->ExitStatus = Thread->ExitStatus; ThreadBasicInfo->TebBaseAddress = (PVOID)Thread->Tcb.Teb; ThreadBasicInfo->ClientId = Thread->Cid; ThreadBasicInfo->AffinityMask = Thread->Tcb.Affinity; ThreadBasicInfo->Priority = Thread->Tcb.Priority; ThreadBasicInfo->BasePriority = KeQueryBasePriorityThread(&Thread->Tcb); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
/* Thread time information */ case ThreadTimes:
/* Set the return length */ Length = sizeof(KERNEL_USER_TIMES);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect writes with SEH */ _SEH2_TRY { /* Copy time information from ETHREAD/KTHREAD */ ThreadTime->KernelTime.QuadPart = Thread->Tcb.KernelTime * KeMaximumIncrement; ThreadTime->UserTime.QuadPart = Thread->Tcb.UserTime * KeMaximumIncrement; ThreadTime->CreateTime = Thread->CreateTime;
/* Exit time is in a union and only valid on actual exit! */ if (KeReadStateThread(&Thread->Tcb)) { ThreadTime->ExitTime = Thread->ExitTime; } else { ThreadTime->ExitTime.QuadPart = 0; } } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadQuerySetWin32StartAddress:
/* Set the return length*/ Length = sizeof(PVOID);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect write with SEH */ _SEH2_TRY { /* Return the Win32 Start Address */ *(PVOID*)ThreadInformation = Thread->Win32StartAddress; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadPerformanceCount:
/* Set the return length*/ Length = sizeof(LARGE_INTEGER);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect write with SEH */ _SEH2_TRY { /* FIXME */ (*(PLARGE_INTEGER)ThreadInformation).QuadPart = 0; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadAmILastThread:
/* Set the return length*/ Length = sizeof(ULONG);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Protect write with SEH */ _SEH2_TRY { /* Return whether or not we are the last thread */ *(PULONG)ThreadInformation = ((Thread->ThreadsProcess-> ThreadListHead.Flink->Flink == &Thread->ThreadsProcess-> ThreadListHead) ? TRUE : FALSE); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadIsIoPending:
/* Set the return length*/ Length = sizeof(ULONG);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Raise the IRQL to protect the IRP list */ KeRaiseIrql(APC_LEVEL, &OldIrql);
/* Protect write with SEH */ _SEH2_TRY { /* Check if the IRP list is empty or not */ *(PULONG)ThreadInformation = !IsListEmpty(&Thread->IrpList); } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Lower IRQL back */ KeLowerIrql(OldIrql);
/* Dereference the thread */ ObDereferenceObject(Thread); break;
/* LDT and GDT information */ case ThreadDescriptorTableEntry:
#if defined(_X86_) /* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
/* Call the worker routine */ Status = PspQueryDescriptorThread(Thread, ThreadInformation, ThreadInformationLength, ReturnLength);
/* Dereference the thread */ ObDereferenceObject(Thread);#else /* Only implemented on x86 */ Status = STATUS_NOT_IMPLEMENTED;#endif break;
case ThreadPriorityBoost:
/* Set the return length*/ Length = sizeof(ULONG);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
_SEH2_TRY { *(PULONG)ThreadInformation = Thread->Tcb.DisableBoost ? 1 : 0; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadBreakOnTermination:
/* Set the return length */ Length = sizeof(ULONG);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
_SEH2_TRY { *(PULONG)ThreadInformation = Thread->BreakOnTermination; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
case ThreadIsTerminated:
/* Set the return length*/ Length = sizeof(ThreadTerminated);
if (ThreadInformationLength != Length) { Status = STATUS_INFO_LENGTH_MISMATCH; break; }
/* Reference the thread */ Status = ObReferenceObjectByHandle(ThreadHandle, Access, PsThreadType, PreviousMode, (PVOID*)&Thread, NULL); if (!NT_SUCCESS(Status)) break;
ThreadTerminated = PsIsThreadTerminating(Thread);
_SEH2_TRY { *(PULONG)ThreadInformation = ThreadTerminated ? 1 : 0; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { Status = _SEH2_GetExceptionCode(); } _SEH2_END;
/* Dereference the thread */ ObDereferenceObject(Thread); break;
/* Anything else */ default: /* Not yet implemented */#if DBG DPRINT1("Not implemented: %s\n", PspDumpThreadInfoClassName(ThreadInformationClass));#endif Status = STATUS_NOT_IMPLEMENTED; }
/* Protect write with SEH */ _SEH2_TRY { /* Check if caller wanted return length */ if (ReturnLength) *ReturnLength = Length; } _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* Get exception code */ Status = _SEH2_GetExceptionCode(); } _SEH2_END;
return Status;}
/* EOF */