2534 lines
81 KiB
C
2534 lines
81 KiB
C
/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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logsup.c
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Abstract:
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WMI logger api set. The routines here will need to appear like they
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are system calls. They are necessary to do the necessary error checking
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and do most of the legwork that can be done outside the kernel. The
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kernel portion will subsequently only deal with the actual logging
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and tracing.
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Author:
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28-May-1997 JeePang
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Revision History:
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--*/
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#ifndef MEMPHIS
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#include <nt.h>
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#include <ntrtl.h> // for ntutrl.h
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#include <nturtl.h> // for RTL_CRITICAL_SECTION in winbase.h/wtypes.h
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#include <wtypes.h> // for LPGUID in wmium.h
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#include "wmiump.h"
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#include "evntrace.h"
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#include "traceump.h"
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#include "tracelib.h"
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#include <math.h>
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#include "trcapi.h"
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NTSTATUS
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WmipProcessRunDown(
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IN PWMI_LOGGER_CONTEXT Logger,
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IN ULONG StartFlag,
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IN ULONG fEnableFlags
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);
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NTSTATUS
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WmipThreadRunDown(
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IN PWMI_LOGGER_CONTEXT Logger,
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IN PSYSTEM_PROCESS_INFORMATION pProcessInfo,
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IN ULONG StartFlag,
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IN BOOLEAN bExtended
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);
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ULONG WmiTraceAlignment = DEFAULT_TRACE_ALIGNMENT;
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/*
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ULONG
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WmipStartLogger(
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IN OUT PWMI_LOGGER_INFORMATION LoggerInfo
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)
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/*++
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Routine Description:
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This is the actual routine to communicate with the kernel to start
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the logger. All the required parameters must be in LoggerInfo.
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Arguments:
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LoggerInfo The actual parameters to be passed to and return from
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kernel.
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Return Value:
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The status of performing the action requested.
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--*//*
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{
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ULONG Status;
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ULONG BufferSize;
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ACCESS_MASK DesiredAccess = 0;
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LPGUID Guid;
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PVOID SavedChecksum;
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ULONG SavedLogFileMode;
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BOOLEAN IsKernelTrace = FALSE;
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BOOLEAN bLogFile = FALSE;
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BOOLEAN bRealTime = FALSE;
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Guid = &LoggerInfo->Wnode.Guid;
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if (IsEqualGUID(Guid, &SystemTraceControlGuid) ||
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IsEqualGUID(Guid, &WmiEventLoggerGuid)) {
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IsKernelTrace = TRUE;
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DesiredAccess |= TRACELOG_ACCESS_KERNEL_LOGGER;
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}
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if ((LoggerInfo->LogFileName.Length > 0) &&
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(LoggerInfo->LogFileName.Buffer != NULL)) {
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DesiredAccess |= TRACELOG_CREATE_ONDISK;
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bLogFile = TRUE;
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}
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SavedLogFileMode = LoggerInfo->LogFileMode;
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if (SavedLogFileMode & EVENT_TRACE_REAL_TIME_MODE) {
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DesiredAccess |= TRACELOG_CREATE_REALTIME;
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bRealTime = TRUE;
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}
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Status = WmipCheckGuidAccess( Guid, DesiredAccess );
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if (Status != ERROR_SUCCESS) {
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return Status;
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}
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//
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// Set the Default Clock Type
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//
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if (LoggerInfo->Wnode.ClientContext != EVENT_TRACE_CLOCK_SYSTEMTIME) {
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LoggerInfo->Wnode.ClientContext = EVENT_TRACE_CLOCK_PERFCOUNTER;
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}
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if (SavedLogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
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Status = WmipSendUmLogRequest(
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WmiStartLoggerCode,
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LoggerInfo
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);
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}
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else if (IsKernelTrace) {
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//
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// In order to capture the process/thread rundown accurately, we need to
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// start kernel logger in two steps. Start logger with delay write,
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// do rundown from user mode and then updatelogger with filename.
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//
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WMI_LOGGER_INFORMATION DelayLoggerInfo;
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ULONG EnableFlags = LoggerInfo->EnableFlags;
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LARGE_INTEGER Frequency;
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WMI_REF_CLOCK RefClock;
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//
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// If it's only realtime start logger in one step
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//
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if (bRealTime && !bLogFile) {
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BufferSize = LoggerInfo->BufferSize * 1024;
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Status = WmipSendWmiKMRequest(
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NULL,
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IOCTL_WMI_START_LOGGER,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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&BufferSize,
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NULL
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);
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return WmipSetDosError(Status);
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}
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if (EnableFlags & EVENT_TRACE_FLAG_EXTENSION) {
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PTRACE_ENABLE_FLAG_EXTENSION tFlagExt;
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tFlagExt = (PTRACE_ENABLE_FLAG_EXTENSION)
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&LoggerInfo->EnableFlags;
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EnableFlags = *(PULONG)((PCHAR)LoggerInfo + tFlagExt->Offset);
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}
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//
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// Take a reference timestamp before actually starting the logger
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//
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RefClock.StartTime.QuadPart = WmipGetSystemTime();
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if (LoggerInfo->Wnode.ClientContext == EVENT_TRACE_CLOCK_PERFCOUNTER) {
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Status = NtQueryPerformanceCounter(&RefClock.StartPerfClock, &Frequency);
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}
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else {
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RefClock.StartPerfClock = RefClock.StartTime;
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}
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RtlCopyMemory(&DelayLoggerInfo, LoggerInfo, sizeof(WMI_LOGGER_INFORMATION));
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RtlZeroMemory(&DelayLoggerInfo.LogFileName, sizeof(UNICODE_STRING) );
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DelayLoggerInfo.Wnode.BufferSize = sizeof(WMI_LOGGER_INFORMATION);
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DelayLoggerInfo.LogFileMode |= EVENT_TRACE_DELAY_OPEN_FILE_MODE;
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//
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// Since there's no filename in step 1 of StartLogger we need to mask
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// the NEWFILE mode to prevent kernel trying to generate a file
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//
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DelayLoggerInfo.LogFileMode &= ~EVENT_TRACE_FILE_MODE_NEWFILE;
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DelayLoggerInfo.EnableFlags = (EVENT_TRACE_FLAG_PROCESS & EnableFlags);
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DelayLoggerInfo.EnableFlags |= (EVENT_TRACE_FLAG_THREAD & EnableFlags);
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DelayLoggerInfo.EnableFlags |= (EVENT_TRACE_FLAG_IMAGE_LOAD & EnableFlags);
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BufferSize = DelayLoggerInfo.BufferSize * 1024;
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Status = WmipSendWmiKMRequest(
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NULL,
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IOCTL_WMI_START_LOGGER,
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&DelayLoggerInfo,
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DelayLoggerInfo.Wnode.BufferSize,
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&DelayLoggerInfo,
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DelayLoggerInfo.Wnode.BufferSize,
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&BufferSize,
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NULL
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);
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if (Status != ERROR_SUCCESS) {
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return Status;
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}
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//
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// We need to pick up any parameter adjustment done by the kernel
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// here so UpdateTrace does not fail.
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//
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LoggerInfo->Wnode.HistoricalContext = DelayLoggerInfo.Wnode.HistoricalContext;
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LoggerInfo->MinimumBuffers = DelayLoggerInfo.MinimumBuffers;
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LoggerInfo->MaximumBuffers = DelayLoggerInfo.MaximumBuffers;
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LoggerInfo->NumberOfBuffers = DelayLoggerInfo.NumberOfBuffers;
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LoggerInfo->BufferSize = DelayLoggerInfo.BufferSize;
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LoggerInfo->AgeLimit = DelayLoggerInfo.AgeLimit;
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BufferSize = LoggerInfo->BufferSize * 1024;
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//
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// Add the LogHeader
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//
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LoggerInfo->Checksum = NULL;
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Status = WmipAddLogHeaderToLogFile(LoggerInfo, &RefClock, FALSE);
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if (Status == ERROR_SUCCESS) {
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SavedChecksum = LoggerInfo->Checksum;
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//
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// Update the logger with the filename
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//
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Status = WmipSendWmiKMRequest(
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NULL,
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IOCTL_WMI_UPDATE_LOGGER,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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&BufferSize,
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NULL
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);
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if (LoggerInfo->Checksum != NULL) {
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WmipFree(LoggerInfo->Checksum);
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}
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}
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if (Status != ERROR_SUCCESS) {
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ULONG lStatus;
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//
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// Logger must be stopped now
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//
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lStatus = WmipSendWmiKMRequest(
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NULL,
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IOCTL_WMI_STOP_LOGGER,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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&BufferSize,
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NULL
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);
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LoggerInfo->LogFileMode = SavedLogFileMode;
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return WmipSetDosError(Status);
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}
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else {
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if (LoggerInfo->LogFileHandle != NULL) {
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NtClose(LoggerInfo->LogFileHandle);
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LoggerInfo->LogFileHandle = NULL;
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}
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}
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}
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else {
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LoggerInfo->Checksum = NULL;
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Status = WmipAddLogHeaderToLogFile(LoggerInfo, NULL, FALSE);
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if (Status != ERROR_SUCCESS) {
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return WmipSetDosError(Status);
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}
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BufferSize = LoggerInfo->BufferSize * 1024;
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SavedChecksum = LoggerInfo->Checksum;
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Status = WmipSendWmiKMRequest( // actually start the logger here
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NULL,
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IOCTL_WMI_START_LOGGER,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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LoggerInfo,
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LoggerInfo->Wnode.BufferSize,
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&BufferSize,
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NULL
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);
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if (Status == ERROR_SUCCESS) {
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if (LoggerInfo->LogFileHandle != NULL) {
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NtClose(LoggerInfo->LogFileHandle);
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LoggerInfo->LogFileHandle = NULL;
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}
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}
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if (SavedChecksum != NULL) {
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WmipFree(SavedChecksum);
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}
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}
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//
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// Restore the LogFileMode
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//
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LoggerInfo->LogFileMode = SavedLogFileMode;
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return WmipSetDosError(Status);
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}*/
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ULONG
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WmipFinalizeLogFileHeader(
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IN PWMI_LOGGER_INFORMATION LoggerInfo
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)
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{
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ULONG Status = ERROR_SUCCESS;
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ULONG ErrorCode = ERROR_SUCCESS;
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HANDLE LogFile = INVALID_HANDLE_VALUE;
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LARGE_INTEGER CurrentTime;
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ULONG BuffersWritten;
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WMI_LOGGER_CONTEXT Logger;
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IO_STATUS_BLOCK IoStatus;
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FILE_POSITION_INFORMATION FileInfo;
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FILE_STANDARD_INFORMATION FileSize;
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PWMI_BUFFER_HEADER Buffer; // need to initialize buffer first
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SYSTEM_BASIC_INFORMATION SystemInfo;
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ULONG EnableFlags;
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RtlZeroMemory(&Logger, sizeof(WMI_LOGGER_CONTEXT));
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Logger.BufferSpace = NULL;
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if (LoggerInfo->LogFileName.Length > 0 ) {
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// open the file for writing synchronously for the logger
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// others may want to read it as well.
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//
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LogFile = WmipCreateFileW(
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(LPWSTR)LoggerInfo->LogFileName.Buffer,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL
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);
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if (LogFile == INVALID_HANDLE_VALUE) {
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ErrorCode = WmipSetDosError(WmipGetLastError());
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goto cleanup;
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}
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Logger.BuffersWritten = LoggerInfo->BuffersWritten;
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Logger.BufferSpace = WmipAlloc(LoggerInfo->BufferSize * 1024);
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if (Logger.BufferSpace == NULL) {
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ErrorCode = WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
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goto cleanup;
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}
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Buffer = (PWMI_BUFFER_HEADER) Logger.BufferSpace;
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RtlZeroMemory(Buffer, LoggerInfo->BufferSize * 1024);
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Buffer->Wnode.BufferSize = LoggerInfo->BufferSize * 1024;
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Buffer->ClientContext.Alignment = (UCHAR)WmiTraceAlignment;
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Buffer->EventsLost = 0;
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Buffer->Offset = sizeof(WMI_BUFFER_HEADER);
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Buffer->Wnode.Guid = LoggerInfo->Wnode.Guid;
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Status = NtQuerySystemInformation(
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SystemBasicInformation,
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&SystemInfo, sizeof (SystemInfo), NULL);
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if (!NT_SUCCESS(Status)) {
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ErrorCode = WmipSetNtStatus(Status);
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goto cleanup;
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}
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Logger.TimerResolution = SystemInfo.TimerResolution;
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Logger.LogFileHandle = LogFile;
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Logger.BufferSize = LoggerInfo->BufferSize * 1024;
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|
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// For Circular LogFile the process rundown data is appended at the
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// last buffer written and not to the end of file.
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//
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Status = NtQueryInformationFile(
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LogFile,
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&IoStatus,
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&FileSize,
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sizeof(FILE_STANDARD_INFORMATION),
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FileStandardInformation
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);
|
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if (!NT_SUCCESS(Status)) {
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ErrorCode = WmipSetNtStatus(Status);
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goto cleanup;
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}
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|
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if (IsEqualGUID(&LoggerInfo->Wnode.Guid, &SystemTraceControlGuid)) {
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|
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if (LoggerInfo->LogFileMode != EVENT_TRACE_FILE_MODE_CIRCULAR) {
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FileInfo.CurrentByteOffset = FileSize.EndOfFile;
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}
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else {
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ULONG BufferSize = LoggerInfo->BufferSize; // in KB
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ULONG BuffersWritten = LoggerInfo->BuffersWritten;
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ULONG maxBuffers = (LoggerInfo->MaximumFileSize * 1024) / BufferSize;
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ULONG LastBuffer;
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ULONG StartBuffers;
|
|
|
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FileInfo.CurrentByteOffset.QuadPart =
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LOGFILE_FIELD_OFFSET(StartBuffers);
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Status = NtSetInformationFile(
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LogFile,
|
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&IoStatus,
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&FileInfo,
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sizeof(FILE_POSITION_INFORMATION),
|
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FilePositionInformation
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);
|
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if (!NT_SUCCESS(Status)) {
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ErrorCode = WmipSetNtStatus(Status);
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goto cleanup;
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}
|
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|
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Status = NtReadFile(
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LogFile,
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NULL,
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NULL,
|
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NULL,
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&IoStatus,
|
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&StartBuffers,
|
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sizeof(ULONG),
|
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NULL,
|
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NULL
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);
|
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if (!NT_SUCCESS(Status)) {
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ErrorCode = WmipSetNtStatus(Status);
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goto cleanup;
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}
|
|
|
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LastBuffer = (maxBuffers > StartBuffers) ?
|
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(StartBuffers + (BuffersWritten - StartBuffers)
|
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% (maxBuffers - StartBuffers))
|
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: 0;
|
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FileInfo.CurrentByteOffset.QuadPart = LastBuffer *
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BufferSize * 1024;
|
|
}
|
|
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
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&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
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ErrorCode = WmipSetNtStatus(Status);
|
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goto cleanup;
|
|
}
|
|
|
|
EnableFlags = LoggerInfo->EnableFlags;
|
|
|
|
if (EnableFlags & EVENT_TRACE_FLAG_EXTENSION) {
|
|
PTRACE_ENABLE_FLAG_EXTENSION tFlagExt;
|
|
|
|
tFlagExt = (PTRACE_ENABLE_FLAG_EXTENSION)
|
|
&LoggerInfo->EnableFlags;
|
|
|
|
if (LoggerInfo->Wnode.BufferSize >= (tFlagExt->Offset + sizeof(ULONG)) ) {
|
|
EnableFlags = *(PULONG)((PCHAR)LoggerInfo + tFlagExt->Offset);
|
|
}
|
|
else {
|
|
EnableFlags = 0; // Should not happen.
|
|
}
|
|
}
|
|
|
|
if (LoggerInfo->Wnode.ClientContext != EVENT_TRACE_CLOCK_SYSTEMTIME) {
|
|
LoggerInfo->Wnode.ClientContext = EVENT_TRACE_CLOCK_PERFCOUNTER;
|
|
}
|
|
Logger.UsePerfClock = LoggerInfo->Wnode.ClientContext;
|
|
|
|
WmipProcessRunDown(&Logger, FALSE, EnableFlags);
|
|
{
|
|
PWMI_BUFFER_HEADER Buffer1 =
|
|
(PWMI_BUFFER_HEADER) Logger.BufferSpace;
|
|
if (Buffer1->Offset < Logger.BufferSize) {
|
|
RtlFillMemory(
|
|
(char *) Logger.BufferSpace + Buffer1->Offset,
|
|
Logger.BufferSize - Buffer1->Offset,
|
|
0xFF);
|
|
}
|
|
}
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
Logger.BufferSpace,
|
|
Logger.BufferSize,
|
|
NULL,
|
|
NULL);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
Logger.BuffersWritten++;
|
|
}
|
|
}
|
|
else { // For Application Traces, need to dump the guidmaps again.
|
|
|
|
// Set the FilePointer to end of file so that Rundown data may be appended.
|
|
//
|
|
FileInfo.CurrentByteOffset = FileSize.EndOfFile;
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
ErrorCode = WmipSetNtStatus(Status);
|
|
goto cleanup;
|
|
}
|
|
|
|
// Dump the Guid Maps once more at the End.
|
|
//
|
|
Buffer->EventsLost = 0;
|
|
Buffer->Offset = sizeof(WMI_BUFFER_HEADER);
|
|
BuffersWritten = Logger.BuffersWritten;
|
|
|
|
if (WmipDumpGuidMaps(&Logger, NULL, FALSE) > 0) {
|
|
if (Buffer->Offset < Logger.BufferSize) {
|
|
RtlFillMemory(
|
|
(char *) Logger.BufferSpace + Buffer->Offset,
|
|
Logger.BufferSize - Buffer->Offset,
|
|
0xFF);
|
|
}
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
Logger.BufferSpace,
|
|
Logger.BufferSize,
|
|
NULL,
|
|
NULL);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
Logger.BuffersWritten = BuffersWritten;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: should use memory-mapped file
|
|
|
|
// Update the EndTime stamp field in LogFile.
|
|
//
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(EndTime);
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
ErrorCode = WmipSetNtStatus(Status);
|
|
goto cleanup;
|
|
}
|
|
|
|
// End Time is always wallclock time.
|
|
//
|
|
CurrentTime.QuadPart = WmipGetSystemTime();
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&CurrentTime,
|
|
sizeof(ULONGLONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
}
|
|
|
|
// Update the Number of Buffers Written field in the header
|
|
//
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(BuffersWritten);
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
ErrorCode = WmipSetNtStatus(Status);
|
|
goto cleanup;
|
|
}
|
|
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&Logger.BuffersWritten,
|
|
sizeof(ULONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
}
|
|
|
|
ErrorCode = RtlNtStatusToDosError(Status);
|
|
LoggerInfo->BuffersWritten = Logger.BuffersWritten;
|
|
|
|
//
|
|
// Write the BuffersLost information into the logfile
|
|
//
|
|
|
|
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(BuffersLost);
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
ErrorCode = WmipSetNtStatus(Status);
|
|
goto cleanup;
|
|
}
|
|
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&LoggerInfo->LogBuffersLost,
|
|
sizeof(ULONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
}
|
|
|
|
//
|
|
// Write the EventsLost information into the logfile
|
|
//
|
|
|
|
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(EventsLost);
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
ErrorCode = WmipSetNtStatus(Status);
|
|
goto cleanup;
|
|
}
|
|
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&LoggerInfo->EventsLost,
|
|
sizeof(ULONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
}
|
|
|
|
}
|
|
|
|
cleanup:
|
|
if (LogFile != INVALID_HANDLE_VALUE) {
|
|
NtClose(LogFile);
|
|
}
|
|
if (Logger.BufferSpace != NULL) {
|
|
WmipFree(Logger.BufferSpace);
|
|
}
|
|
return WmipSetDosError(ErrorCode);
|
|
}
|
|
|
|
ULONG
|
|
WmipStopLogger(
|
|
IN OUT PWMI_LOGGER_INFORMATION LoggerInfo
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This is the actual routine to communicate with the kernel to stop
|
|
the logger. All the properties of the logger will be returned in LoggerInfo.
|
|
|
|
Arguments:
|
|
|
|
LoggerInfo The actual parameters to be passed to and return from
|
|
kernel.
|
|
|
|
Return Value:
|
|
|
|
The status of performing the action requested.
|
|
|
|
--*/
|
|
{
|
|
ULONG ErrorCode, ReturnSize;
|
|
PTRACE_ENABLE_CONTEXT pContext;
|
|
|
|
if (LoggerInfo == NULL)
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if (LoggerInfo->Wnode.BufferSize < sizeof(WMI_LOGGER_INFORMATION))
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if ( !(LoggerInfo->Wnode.Flags & WNODE_FLAG_TRACED_GUID) )
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
pContext = (PTRACE_ENABLE_CONTEXT) & LoggerInfo->Wnode.HistoricalContext;
|
|
if ( (pContext->InternalFlag != 0)
|
|
&& (pContext->InternalFlag != EVENT_TRACE_INTERNAL_FLAG_PRIVATE)) {
|
|
// Currently only one possible InternalFlag value. This will filter
|
|
// out some bogus LoggerHandle
|
|
//
|
|
return WmipSetDosError(ERROR_INVALID_HANDLE);
|
|
}
|
|
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
|
|
ErrorCode = WmipSendUmLogRequest(WmiStopLoggerCode, LoggerInfo);
|
|
pContext->InternalFlag |= EVENT_TRACE_INTERNAL_FLAG_PRIVATE;
|
|
pContext->LoggerId = 1;
|
|
}
|
|
else {
|
|
|
|
|
|
ErrorCode = WmipSendWmiKMRequest(
|
|
NULL,
|
|
IOCTL_WMI_STOP_LOGGER,
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
&ReturnSize,
|
|
NULL
|
|
);
|
|
|
|
//
|
|
// if logging to a file, then update the EndTime, BuffersWritten and do
|
|
// process rundown for kernel trace.
|
|
//
|
|
if (ErrorCode == ERROR_SUCCESS) {
|
|
ErrorCode = WmipFinalizeLogFileHeader(LoggerInfo);
|
|
}
|
|
}
|
|
|
|
return WmipSetDosError(ErrorCode);
|
|
}
|
|
|
|
|
|
ULONG
|
|
WmipQueryLogger(
|
|
IN OUT PWMI_LOGGER_INFORMATION LoggerInfo,
|
|
IN ULONG Update
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This is the actual routine to communicate with the kernel to query
|
|
the logger. All the properties of the logger will be returned in LoggerInfo.
|
|
|
|
Arguments:
|
|
|
|
LoggerInfo The actual parameters to be passed to and return from
|
|
kernel.
|
|
|
|
Return Value:
|
|
|
|
The status of performing the action requested.
|
|
|
|
--*/
|
|
{
|
|
ULONG Status, ReturnSize;
|
|
HANDLE LogFileHandle = NULL;
|
|
PTRACE_ENABLE_CONTEXT pContext;
|
|
BOOLEAN bAddAppendFlag = FALSE;
|
|
ULONG SavedLogFileMode;
|
|
|
|
if (LoggerInfo == NULL)
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if (LoggerInfo->Wnode.BufferSize < sizeof(WMI_LOGGER_INFORMATION))
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if ( !(LoggerInfo->Wnode.Flags & WNODE_FLAG_TRACED_GUID) )
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
LoggerInfo->Checksum = NULL;
|
|
LoggerInfo->LogFileHandle = NULL;
|
|
pContext = (PTRACE_ENABLE_CONTEXT) &LoggerInfo->Wnode.HistoricalContext;
|
|
|
|
if ( (pContext->InternalFlag != 0)
|
|
&& (pContext->InternalFlag != EVENT_TRACE_INTERNAL_FLAG_PRIVATE)) {
|
|
// Currently only one possible InternalFlag value. This will filter
|
|
// out some bogus LoggerHandle
|
|
//
|
|
return WmipSetDosError(ERROR_INVALID_HANDLE);
|
|
}
|
|
|
|
//
|
|
// If UPDATE and a new logfile is given throw in the LogFileHeader
|
|
//
|
|
if ( Update
|
|
&& LoggerInfo->LogFileName.Length > 0
|
|
&& !( (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE)
|
|
|| (pContext->InternalFlag & EVENT_TRACE_INTERNAL_FLAG_PRIVATE))) {
|
|
Status = WmipAddLogHeaderToLogFile(LoggerInfo, NULL, Update);
|
|
if (Status != ERROR_SUCCESS) {
|
|
return WmipSetDosError(Status);
|
|
}
|
|
|
|
LogFileHandle = LoggerInfo->LogFileHandle;
|
|
bAddAppendFlag = TRUE;
|
|
//
|
|
// If we are switching to a new file, make sure it is append mode
|
|
//
|
|
SavedLogFileMode = LoggerInfo->LogFileMode;
|
|
}
|
|
|
|
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE ||
|
|
pContext->InternalFlag & EVENT_TRACE_INTERNAL_FLAG_PRIVATE) {
|
|
|
|
pContext->InternalFlag |= EVENT_TRACE_INTERNAL_FLAG_PRIVATE;
|
|
pContext->LoggerId = 1;
|
|
|
|
Status = WmipSendUmLogRequest(
|
|
(Update) ? (WmiUpdateLoggerCode) : (WmiQueryLoggerCode),
|
|
LoggerInfo
|
|
);
|
|
}
|
|
else {
|
|
Status = WmipSendWmiKMRequest(
|
|
NULL,
|
|
(Update ? IOCTL_WMI_UPDATE_LOGGER : IOCTL_WMI_QUERY_LOGGER),
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
&ReturnSize,
|
|
NULL
|
|
);
|
|
|
|
if (LoggerInfo->Checksum != NULL) {
|
|
WmipFree(LoggerInfo->Checksum);
|
|
}
|
|
}
|
|
if (bAddAppendFlag) {
|
|
LoggerInfo->LogFileMode = SavedLogFileMode;
|
|
}
|
|
return WmipSetDosError(Status);
|
|
}
|
|
|
|
PVOID
|
|
WmipGetTraceBuffer(
|
|
IN PWMI_LOGGER_CONTEXT Logger,
|
|
IN PSYSTEM_THREAD_INFORMATION pThread,
|
|
IN ULONG GroupType,
|
|
IN ULONG RequiredSize
|
|
)
|
|
{
|
|
PSYSTEM_TRACE_HEADER Header;
|
|
PWMI_BUFFER_HEADER Buffer;
|
|
THREAD_BASIC_INFORMATION ThreadInfo;
|
|
KERNEL_USER_TIMES ThreadCpu;
|
|
NTSTATUS Status;
|
|
ULONG BytesUsed;
|
|
PCLIENT_ID Cid;
|
|
|
|
RequiredSize += sizeof (SYSTEM_TRACE_HEADER); // add in header
|
|
|
|
RequiredSize = (ULONG) ALIGN_TO_POWER2(RequiredSize, WmiTraceAlignment);
|
|
|
|
Buffer = (PWMI_BUFFER_HEADER) Logger->BufferSpace;
|
|
|
|
if (RequiredSize > Logger->BufferSize - sizeof(WMI_BUFFER_HEADER)) {
|
|
WmipSetDosError(ERROR_BUFFER_OVERFLOW);
|
|
return NULL;
|
|
}
|
|
|
|
if (RequiredSize > (Logger->BufferSize - Buffer->Offset)) {
|
|
ULONG Status;
|
|
IO_STATUS_BLOCK IoStatus;
|
|
|
|
if (Buffer->Offset < Logger->BufferSize) {
|
|
RtlFillMemory(
|
|
(char *) Buffer + Buffer->Offset,
|
|
Logger->BufferSize - Buffer->Offset,
|
|
0xFF);
|
|
}
|
|
Status = NtWriteFile(
|
|
Logger->LogFileHandle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
Buffer,
|
|
Logger->BufferSize,
|
|
NULL,
|
|
NULL);
|
|
Buffer->EventsLost = 0;
|
|
Buffer->Offset = sizeof(WMI_BUFFER_HEADER);
|
|
if (!NT_SUCCESS(Status)) {
|
|
return NULL;
|
|
}
|
|
Logger->BuffersWritten++;
|
|
}
|
|
Header = (PSYSTEM_TRACE_HEADER) ((char*)Buffer + Buffer->Offset);
|
|
|
|
if (Logger->UsePerfClock == EVENT_TRACE_CLOCK_PERFCOUNTER) {
|
|
LARGE_INTEGER Frequency;
|
|
ULONGLONG Counter = 0;
|
|
Status = NtQueryPerformanceCounter((PLARGE_INTEGER)&Counter,
|
|
&Frequency);
|
|
Header->SystemTime.QuadPart = Counter;
|
|
}
|
|
else {
|
|
Header->SystemTime.QuadPart = WmipGetSystemTime();
|
|
}
|
|
|
|
Header->Header = (GroupType << 16) + RequiredSize;
|
|
Header->Marker = SYSTEM_TRACE_MARKER;
|
|
|
|
if (pThread == NULL) {
|
|
Status = NtQueryInformationThread(
|
|
NtCurrentThread(),
|
|
ThreadBasicInformation,
|
|
&ThreadInfo,
|
|
sizeof ThreadInfo, NULL);
|
|
if (NT_SUCCESS(Status)) {
|
|
Cid = &ThreadInfo.ClientId;
|
|
Header->ThreadId = HandleToUlong(Cid->UniqueThread);
|
|
Header->ProcessId = HandleToUlong(Cid->UniqueProcess);
|
|
}
|
|
|
|
Status = NtQueryInformationThread(
|
|
NtCurrentThread(),
|
|
ThreadTimes,
|
|
&ThreadCpu, sizeof ThreadCpu, NULL);
|
|
if (NT_SUCCESS(Status)) {
|
|
Header->KernelTime = (ULONG) (ThreadCpu.KernelTime.QuadPart
|
|
/ Logger->TimerResolution);
|
|
Header->UserTime = (ULONG) (ThreadCpu.UserTime.QuadPart
|
|
/ Logger->TimerResolution);
|
|
}
|
|
}
|
|
else {
|
|
Cid = &pThread->ClientId;
|
|
Header->ThreadId = HandleToUlong(Cid->UniqueThread);
|
|
Header->ProcessId = HandleToUlong(Cid->UniqueProcess);
|
|
Header->KernelTime = (ULONG) (pThread->KernelTime.QuadPart
|
|
/ Logger->TimerResolution);
|
|
Header->UserTime = (ULONG) (pThread->UserTime.QuadPart
|
|
/ Logger->TimerResolution);
|
|
}
|
|
|
|
Buffer->Offset += RequiredSize;
|
|
// If there is room, throw in a end of buffer marker.
|
|
|
|
BytesUsed = Buffer->Offset;
|
|
if ( BytesUsed <= (Logger->BufferSize-sizeof(ULONG)) ) {
|
|
*((long*)((char*)Buffer+Buffer->Offset)) = -1;
|
|
}
|
|
return (PVOID) ( (char*) Header + sizeof(SYSTEM_TRACE_HEADER) );
|
|
}
|
|
|
|
|
|
VOID
|
|
WmipCopyPropertiesToInfo(
|
|
IN PEVENT_TRACE_PROPERTIES Properties,
|
|
IN PWMI_LOGGER_INFORMATION Info
|
|
)
|
|
{
|
|
ULONG SavedBufferSize = Info->Wnode.BufferSize;
|
|
|
|
RtlCopyMemory(&Info->Wnode, &Properties->Wnode, sizeof(WNODE_HEADER));
|
|
|
|
Info->Wnode.BufferSize = SavedBufferSize;
|
|
|
|
Info->BufferSize = Properties->BufferSize;
|
|
Info->MinimumBuffers = Properties->MinimumBuffers;
|
|
Info->MaximumBuffers = Properties->MaximumBuffers;
|
|
Info->NumberOfBuffers = Properties->NumberOfBuffers;
|
|
Info->FreeBuffers = Properties->FreeBuffers;
|
|
Info->EventsLost = Properties->EventsLost;
|
|
Info->BuffersWritten = Properties->BuffersWritten;
|
|
Info->LoggerThreadId = Properties->LoggerThreadId;
|
|
Info->MaximumFileSize = Properties->MaximumFileSize;
|
|
Info->EnableFlags = Properties->EnableFlags;
|
|
Info->LogFileMode = Properties->LogFileMode;
|
|
Info->FlushTimer = Properties->FlushTimer;
|
|
Info->LogBuffersLost = Properties->LogBuffersLost;
|
|
Info->AgeLimit = Properties->AgeLimit;
|
|
Info->RealTimeBuffersLost = Properties->RealTimeBuffersLost;
|
|
}
|
|
|
|
VOID
|
|
WmipCopyInfoToProperties(
|
|
IN PWMI_LOGGER_INFORMATION Info,
|
|
IN PEVENT_TRACE_PROPERTIES Properties
|
|
)
|
|
{
|
|
ULONG SavedSize = Properties->Wnode.BufferSize;
|
|
RtlCopyMemory(&Properties->Wnode, &Info->Wnode, sizeof(WNODE_HEADER));
|
|
Properties->Wnode.BufferSize = SavedSize;
|
|
|
|
Properties->BufferSize = Info->BufferSize;
|
|
Properties->MinimumBuffers = Info->MinimumBuffers;
|
|
Properties->MaximumBuffers = Info->MaximumBuffers;
|
|
Properties->NumberOfBuffers = Info->NumberOfBuffers;
|
|
Properties->FreeBuffers = Info->FreeBuffers;
|
|
Properties->EventsLost = Info->EventsLost;
|
|
Properties->BuffersWritten = Info->BuffersWritten;
|
|
Properties->LoggerThreadId = Info->LoggerThreadId;
|
|
Properties->MaximumFileSize = Info->MaximumFileSize;
|
|
Properties->EnableFlags = Info->EnableFlags;
|
|
Properties->LogFileMode = Info->LogFileMode;
|
|
Properties->FlushTimer = Info->FlushTimer;
|
|
Properties->LogBuffersLost = Info->LogBuffersLost;
|
|
Properties->AgeLimit = Info->AgeLimit;
|
|
Properties->RealTimeBuffersLost = Info->RealTimeBuffersLost;
|
|
}
|
|
|
|
NTSTATUS
|
|
WmipThreadRunDown(
|
|
IN PWMI_LOGGER_CONTEXT Logger,
|
|
IN PSYSTEM_PROCESS_INFORMATION pProcessInfo,
|
|
IN ULONG StartFlag,
|
|
IN BOOLEAN bExtended
|
|
)
|
|
{
|
|
PSYSTEM_THREAD_INFORMATION pThreadInfo;
|
|
ULONG GroupType;
|
|
ULONG i;
|
|
ULONG Size;
|
|
ULONG SystemThreadInfoSize;
|
|
PWMI_EXTENDED_THREAD_INFORMATION ThreadInfo;
|
|
|
|
pThreadInfo = (PSYSTEM_THREAD_INFORMATION) (pProcessInfo+1);
|
|
|
|
GroupType = EVENT_TRACE_GROUP_THREAD +
|
|
((StartFlag) ? EVENT_TRACE_TYPE_DC_START
|
|
: EVENT_TRACE_TYPE_DC_END);
|
|
|
|
Size = sizeof(WMI_EXTENDED_THREAD_INFORMATION);
|
|
|
|
|
|
SystemThreadInfoSize = (bExtended) ? sizeof(SYSTEM_EXTENDED_THREAD_INFORMATION)
|
|
: sizeof(SYSTEM_THREAD_INFORMATION);
|
|
for (i=0; i < pProcessInfo->NumberOfThreads; i++) {
|
|
if (pThreadInfo == NULL)
|
|
break;
|
|
ThreadInfo = (PWMI_EXTENDED_THREAD_INFORMATION)
|
|
WmipGetTraceBuffer( Logger,
|
|
pThreadInfo,
|
|
GroupType,
|
|
Size );
|
|
|
|
if (ThreadInfo) {
|
|
ThreadInfo->ProcessId =
|
|
HandleToUlong(pThreadInfo->ClientId.UniqueProcess);
|
|
ThreadInfo->ThreadId =
|
|
HandleToUlong(pThreadInfo->ClientId.UniqueThread);
|
|
|
|
if (bExtended) {
|
|
PSYSTEM_EXTENDED_THREAD_INFORMATION pExtThreadInfo;
|
|
pExtThreadInfo = (PSYSTEM_EXTENDED_THREAD_INFORMATION) pThreadInfo;
|
|
ThreadInfo->StackBase = pExtThreadInfo->StackBase;
|
|
ThreadInfo->StackLimit = pExtThreadInfo->StackLimit;
|
|
|
|
ThreadInfo->StartAddr = pExtThreadInfo->ThreadInfo.StartAddress;
|
|
ThreadInfo->Win32StartAddr = pExtThreadInfo->Win32StartAddress;
|
|
ThreadInfo->UserStackBase = NULL;
|
|
ThreadInfo->UserStackLimit = NULL;
|
|
ThreadInfo->WaitMode = -1;
|
|
}
|
|
else {
|
|
ThreadInfo->StackBase = NULL;
|
|
ThreadInfo->StackLimit = NULL;
|
|
ThreadInfo->StartAddr = NULL;
|
|
ThreadInfo->Win32StartAddr = NULL;
|
|
ThreadInfo->UserStackBase = NULL;
|
|
ThreadInfo->UserStackLimit = NULL;
|
|
ThreadInfo->WaitMode = -1;
|
|
}
|
|
}
|
|
pThreadInfo = (PSYSTEM_THREAD_INFORMATION)( (char*)pThreadInfo + SystemThreadInfoSize );
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
void
|
|
WmipLogImageLoadEvent(
|
|
IN HANDLE ProcessID,
|
|
IN PWMI_LOGGER_CONTEXT pLogger,
|
|
IN PRTL_PROCESS_MODULE_INFORMATION pModuleInfo,
|
|
IN PSYSTEM_THREAD_INFORMATION pThreadInfo
|
|
)
|
|
{
|
|
UNICODE_STRING wstrModuleName;
|
|
ANSI_STRING astrModuleName;
|
|
ULONG sizeModuleName;
|
|
ULONG sizeBuffer;
|
|
PCHAR pAuxInfo;
|
|
PWMI_IMAGELOAD_INFORMATION ImageLoadInfo;
|
|
|
|
if ((pLogger == NULL) || (pModuleInfo == NULL) || (pThreadInfo == NULL))
|
|
return;
|
|
|
|
RtlInitAnsiString( & astrModuleName, pModuleInfo->FullPathName);
|
|
|
|
sizeModuleName = sizeof(WCHAR) * (astrModuleName.Length);
|
|
sizeBuffer = sizeModuleName + sizeof(WCHAR)
|
|
+ FIELD_OFFSET (WMI_IMAGELOAD_INFORMATION, FileName);
|
|
|
|
ImageLoadInfo = (PWMI_IMAGELOAD_INFORMATION)
|
|
WmipGetTraceBuffer(
|
|
pLogger,
|
|
pThreadInfo,
|
|
EVENT_TRACE_GROUP_PROCESS + EVENT_TRACE_TYPE_LOAD,
|
|
sizeBuffer);
|
|
|
|
if (ImageLoadInfo == NULL) {
|
|
return;
|
|
}
|
|
|
|
ImageLoadInfo->ImageBase = pModuleInfo->ImageBase;
|
|
ImageLoadInfo->ImageSize = pModuleInfo->ImageSize;
|
|
ImageLoadInfo->ProcessId = HandleToUlong(ProcessID);
|
|
|
|
wstrModuleName.Buffer = (LPWSTR) &ImageLoadInfo->FileName[0];
|
|
|
|
wstrModuleName.MaximumLength = (USHORT) sizeModuleName + sizeof(WCHAR);
|
|
RtlAnsiStringToUnicodeString(& wstrModuleName, & astrModuleName, FALSE);
|
|
}
|
|
|
|
ULONG
|
|
WmipSysModuleRunDown(
|
|
IN PWMI_LOGGER_CONTEXT pLogger,
|
|
IN PSYSTEM_THREAD_INFORMATION pThreadInfo
|
|
)
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
char * pLargeBuffer1;
|
|
ULONG ReturnLength;
|
|
ULONG CurrentBufferSize;
|
|
|
|
ULONG i;
|
|
PRTL_PROCESS_MODULES pModules;
|
|
PRTL_PROCESS_MODULE_INFORMATION pModuleInfo;
|
|
|
|
pLargeBuffer1 = WmipMemReserve(MAX_BUFFER_SIZE);
|
|
|
|
if (pLargeBuffer1 == NULL)
|
|
{
|
|
status = STATUS_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
if (WmipMemCommit(pLargeBuffer1, BUFFER_SIZE) == NULL)
|
|
{
|
|
status = STATUS_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
CurrentBufferSize = BUFFER_SIZE;
|
|
|
|
retry:
|
|
status = NtQuerySystemInformation(
|
|
SystemModuleInformation,
|
|
pLargeBuffer1,
|
|
CurrentBufferSize,
|
|
&ReturnLength);
|
|
|
|
if (status == STATUS_INFO_LENGTH_MISMATCH)
|
|
{
|
|
// Increase buffer size.
|
|
//
|
|
CurrentBufferSize += 8192;
|
|
|
|
if (WmipMemCommit(pLargeBuffer1, CurrentBufferSize) == NULL)
|
|
{
|
|
status = STATUS_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
goto retry;
|
|
}
|
|
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
pModules = (PRTL_PROCESS_MODULES) pLargeBuffer1;
|
|
|
|
for (i = 0, pModuleInfo = & (pModules->Modules[0]);
|
|
i < pModules->NumberOfModules;
|
|
i ++, pModuleInfo ++)
|
|
{
|
|
WmipLogImageLoadEvent(NULL, pLogger, pModuleInfo, pThreadInfo);
|
|
}
|
|
|
|
Cleanup:
|
|
if (pLargeBuffer1)
|
|
{
|
|
WmipMemFree(pLargeBuffer1);
|
|
}
|
|
return WmipSetNtStatus(status);
|
|
}
|
|
|
|
ULONG
|
|
WmipProcessModuleRunDown(
|
|
IN PWMI_LOGGER_CONTEXT pLogger,
|
|
IN HANDLE ProcessID,
|
|
IN PSYSTEM_THREAD_INFORMATION pThreadInfo)
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
ULONG i;
|
|
PRTL_DEBUG_INFORMATION pLargeBuffer1 = NULL;
|
|
|
|
pLargeBuffer1 = RtlCreateQueryDebugBuffer(0, FALSE);
|
|
if (pLargeBuffer1 == NULL)
|
|
{
|
|
status = STATUS_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
status = RtlQueryProcessDebugInformation(
|
|
ProcessID,
|
|
RTL_QUERY_PROCESS_MODULES,
|
|
pLargeBuffer1);
|
|
|
|
if ( !NT_SUCCESS(status) || (pLargeBuffer1->Modules == NULL) )
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
for (i = 0; i < pLargeBuffer1->Modules->NumberOfModules; i ++)
|
|
{
|
|
WmipLogImageLoadEvent(
|
|
ProcessID,
|
|
pLogger,
|
|
& (pLargeBuffer1->Modules->Modules[i]),
|
|
pThreadInfo);
|
|
}
|
|
|
|
Cleanup:
|
|
if (pLargeBuffer1)
|
|
{
|
|
RtlDestroyQueryDebugBuffer(pLargeBuffer1);
|
|
}
|
|
return WmipSetNtStatus(status);
|
|
}
|
|
|
|
NTSTATUS
|
|
WmipProcessRunDown(
|
|
IN PWMI_LOGGER_CONTEXT Logger,
|
|
IN ULONG StartFlag,
|
|
IN ULONG fEnableFlags
|
|
)
|
|
{
|
|
PSYSTEM_PROCESS_INFORMATION pProcessInfo;
|
|
PSYSTEM_THREAD_INFORMATION pThreadInfo;
|
|
char* LargeBuffer1;
|
|
NTSTATUS status;
|
|
ULONG ReturnLength;
|
|
ULONG CurrentBufferSize;
|
|
ULONG GroupType;
|
|
ULONG TotalOffset = 0;
|
|
OBJECT_ATTRIBUTES objectAttributes;
|
|
BOOLEAN WasEnabled = TRUE;
|
|
BOOLEAN bExtended = TRUE;
|
|
|
|
LargeBuffer1 = WmipMemReserve ( MAX_BUFFER_SIZE );
|
|
if (LargeBuffer1 == NULL) {
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (WmipMemCommit (LargeBuffer1, BUFFER_SIZE) == NULL) {
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
|
|
CurrentBufferSize = BUFFER_SIZE;
|
|
retry:
|
|
if (bExtended) {
|
|
status = NtQuerySystemInformation(
|
|
SystemExtendedProcessInformation,
|
|
LargeBuffer1,
|
|
CurrentBufferSize,
|
|
&ReturnLength
|
|
);
|
|
}
|
|
else {
|
|
status = NtQuerySystemInformation(
|
|
SystemProcessInformation,
|
|
LargeBuffer1,
|
|
CurrentBufferSize,
|
|
&ReturnLength
|
|
);
|
|
}
|
|
|
|
if (status == STATUS_INFO_LENGTH_MISMATCH) {
|
|
|
|
//
|
|
// Increase buffer size.
|
|
//
|
|
|
|
CurrentBufferSize += 8192;
|
|
|
|
if (WmipMemCommit (LargeBuffer1, CurrentBufferSize) == NULL) {
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
goto retry;
|
|
}
|
|
|
|
if (!NT_SUCCESS(status)) {
|
|
|
|
if (bExtended) {
|
|
bExtended = FALSE;
|
|
goto retry;
|
|
}
|
|
|
|
WmipMemFree(LargeBuffer1);
|
|
return(status);
|
|
}
|
|
|
|
|
|
//
|
|
// Adjust Privileges to obtain the module information
|
|
//
|
|
|
|
if (fEnableFlags & EVENT_TRACE_FLAG_IMAGE_LOAD) {
|
|
status = RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
|
|
TRUE, FALSE, &WasEnabled);
|
|
if (!NT_SUCCESS(status)) {
|
|
WmipMemFree(LargeBuffer1);
|
|
return (status);
|
|
}
|
|
}
|
|
|
|
|
|
TotalOffset = 0;
|
|
pProcessInfo = (SYSTEM_PROCESS_INFORMATION *) LargeBuffer1;
|
|
while (TRUE) {
|
|
ULONG Size;
|
|
ULONG Length = 0;
|
|
ULONG SidLength = 0;
|
|
PUCHAR AuxPtr;
|
|
PULONG_PTR AuxInfo;
|
|
ANSI_STRING s;
|
|
HANDLE Token;
|
|
HANDLE pProcess;
|
|
PCLIENT_ID Cid;
|
|
ULONG TempInfo[128];
|
|
PWMI_PROCESS_INFORMATION WmiProcessInfo;
|
|
|
|
Size = FIELD_OFFSET(WMI_PROCESS_INFORMATION, Sid);
|
|
|
|
GroupType = EVENT_TRACE_GROUP_PROCESS +
|
|
((StartFlag) ? EVENT_TRACE_TYPE_DC_START
|
|
: EVENT_TRACE_TYPE_DC_END);
|
|
|
|
pThreadInfo = (PSYSTEM_THREAD_INFORMATION) (pProcessInfo+1);
|
|
if (pProcessInfo->NumberOfThreads > 0) {
|
|
Cid = (PCLIENT_ID) &pThreadInfo->ClientId;
|
|
}
|
|
else {
|
|
Cid = NULL;
|
|
}
|
|
|
|
// if at termination, rundown thread first before process
|
|
if ( (!StartFlag) &&
|
|
(fEnableFlags & EVENT_TRACE_FLAG_THREAD) ){
|
|
status = WmipThreadRunDown(Logger,
|
|
pProcessInfo,
|
|
StartFlag,
|
|
bExtended);
|
|
if (!NT_SUCCESS(status)) {
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if (fEnableFlags & EVENT_TRACE_FLAG_PROCESS) {
|
|
|
|
if ( pProcessInfo->ImageName.Buffer &&
|
|
pProcessInfo->ImageName.Length > 0 ) {
|
|
RtlUnicodeStringToAnsiString(
|
|
&s,
|
|
(PUNICODE_STRING)&pProcessInfo->ImageName,
|
|
TRUE);
|
|
Length = s.Length + 1;
|
|
}
|
|
else {
|
|
Length = 1;
|
|
}
|
|
|
|
InitializeObjectAttributes(
|
|
&objectAttributes, 0, 0, NULL, NULL);
|
|
status = NtOpenProcess(
|
|
&pProcess,
|
|
PROCESS_QUERY_INFORMATION,
|
|
&objectAttributes,
|
|
Cid);
|
|
if (NT_SUCCESS(status)) {
|
|
status = NtOpenProcessToken(
|
|
pProcess,
|
|
TOKEN_READ,
|
|
&Token);
|
|
if (NT_SUCCESS(status)) {
|
|
|
|
status = NtQueryInformationToken(
|
|
Token,
|
|
TokenUser,
|
|
TempInfo,
|
|
256,
|
|
&SidLength);
|
|
NtClose(Token);
|
|
}
|
|
NtClose(pProcess);
|
|
}
|
|
if ( (!NT_SUCCESS(status)) || SidLength <= 0) {
|
|
TempInfo[0] = 0;
|
|
SidLength = sizeof(ULONG);
|
|
}
|
|
|
|
Size += Length + SidLength;
|
|
WmiProcessInfo = (PWMI_PROCESS_INFORMATION)
|
|
WmipGetTraceBuffer( Logger,
|
|
pThreadInfo,
|
|
GroupType,
|
|
Size);
|
|
if (WmiProcessInfo == NULL) {
|
|
status = STATUS_NO_MEMORY;
|
|
break;
|
|
}
|
|
WmiProcessInfo->ProcessId = HandleToUlong(pProcessInfo->UniqueProcessId);
|
|
WmiProcessInfo->ParentId = HandleToUlong(pProcessInfo->InheritedFromUniqueProcessId);
|
|
WmiProcessInfo->SessionId = pProcessInfo->SessionId;
|
|
WmiProcessInfo->PageDirectoryBase = pProcessInfo->PageDirectoryBase;
|
|
WmiProcessInfo->ExitStatus = 0;
|
|
|
|
AuxPtr = (PUCHAR) (&WmiProcessInfo->Sid);
|
|
|
|
RtlCopyMemory(AuxPtr, &TempInfo, SidLength);
|
|
AuxPtr += SidLength;
|
|
|
|
if ( Length > 1) {
|
|
RtlCopyMemory(AuxPtr, s.Buffer, Length);
|
|
AuxPtr += Length;
|
|
RtlFreeAnsiString(&s);
|
|
}
|
|
*AuxPtr = '\0';
|
|
AuxPtr++;
|
|
}
|
|
|
|
// if at beginning, trace threads after process
|
|
if (StartFlag) {
|
|
|
|
if (fEnableFlags & EVENT_TRACE_FLAG_THREAD) {
|
|
WmipThreadRunDown(Logger, pProcessInfo, StartFlag, bExtended);
|
|
}
|
|
|
|
if (fEnableFlags & EVENT_TRACE_FLAG_IMAGE_LOAD) {
|
|
if (pProcessInfo->UniqueProcessId == 0) {
|
|
WmipSysModuleRunDown(Logger, pThreadInfo);
|
|
}
|
|
else
|
|
WmipProcessModuleRunDown(
|
|
Logger,
|
|
(HANDLE) pProcessInfo->UniqueProcessId,
|
|
pThreadInfo);
|
|
}
|
|
}
|
|
if (pProcessInfo->NextEntryOffset == 0) {
|
|
break;
|
|
}
|
|
TotalOffset += pProcessInfo->NextEntryOffset;
|
|
pProcessInfo = (PSYSTEM_PROCESS_INFORMATION)&LargeBuffer1[TotalOffset];
|
|
}
|
|
|
|
//
|
|
// Restore privileges back to what it was before
|
|
//
|
|
|
|
if (fEnableFlags & EVENT_TRACE_FLAG_IMAGE_LOAD) {
|
|
status = RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE,
|
|
WasEnabled,
|
|
FALSE,
|
|
&WasEnabled);
|
|
}
|
|
|
|
|
|
WmipMemFree(LargeBuffer1);
|
|
|
|
return status;
|
|
}
|
|
|
|
VOID
|
|
WmipInitString(
|
|
IN PVOID Destination,
|
|
IN PVOID Buffer,
|
|
IN ULONG Size
|
|
)
|
|
{
|
|
PSTRING s = (PSTRING) Destination;
|
|
|
|
s->Buffer = Buffer;
|
|
s->Length = 0;
|
|
if (Buffer != NULL)
|
|
s->MaximumLength = (USHORT) Size;
|
|
else
|
|
s->MaximumLength = 0;
|
|
}
|
|
|
|
VOID
|
|
WmipGenericTraceEnable(
|
|
IN ULONG RequestCode,
|
|
IN PVOID Buffer,
|
|
IN OUT PVOID *RequestAddress
|
|
)
|
|
{
|
|
PGUIDMAPENTRY pControlGMEntry = *RequestAddress;
|
|
PWNODE_HEADER Wnode = (PWNODE_HEADER) Buffer;
|
|
PTRACE_REG_INFO pTraceRegInfo;
|
|
PTRACE_ENABLE_CONTEXT pContext = (PTRACE_ENABLE_CONTEXT)&Wnode->HistoricalContext;
|
|
|
|
*RequestAddress = NULL;
|
|
|
|
if (Wnode == NULL || pControlGMEntry == NULL)
|
|
return;
|
|
|
|
if (!Wnode->Flags & WNODE_FLAG_TRACED_GUID)
|
|
return;
|
|
|
|
pTraceRegInfo = pControlGMEntry->pControlGuidData;
|
|
|
|
WmipAssert(pTraceRegInfo != NULL);
|
|
|
|
|
|
if (pTraceRegInfo->InProgressEvent != NULL) {
|
|
LARGE_INTEGER Timeout = {(ULONG)(-NOTIFY_RETRY_COUNT * 1000 * 10), -1};
|
|
// TODO: Raghu - what if it times out??
|
|
NtWaitForSingleObject(pTraceRegInfo->InProgressEvent, 0, &Timeout);
|
|
}
|
|
|
|
*RequestAddress = pTraceRegInfo->NotifyRoutine;
|
|
|
|
if (RequestCode == WMI_ENABLE_EVENTS) {
|
|
pControlGMEntry->LoggerContext = Wnode->HistoricalContext;
|
|
if (pContext->InternalFlag & EVENT_TRACE_INTERNAL_FLAG_PRIVATE) {
|
|
pTraceRegInfo->EnabledState = TRUE;
|
|
if (!WmipIsPrivateLoggerOn())
|
|
*RequestAddress = NULL; // Do not notify if the logger is not up.
|
|
}
|
|
}
|
|
else if (RequestCode == WMI_DISABLE_EVENTS) {
|
|
if (pContext->InternalFlag & EVENT_TRACE_INTERNAL_FLAG_PRIVATE) {
|
|
pTraceRegInfo->EnabledState = FALSE;
|
|
}
|
|
pControlGMEntry->LoggerContext = 0;
|
|
}
|
|
}
|
|
|
|
ULONG
|
|
WmipAddLogHeaderToLogFile(
|
|
IN OUT PWMI_LOGGER_INFORMATION LoggerInfo,
|
|
IN PWMI_REF_CLOCK RefClock,
|
|
IN ULONG Update
|
|
)
|
|
{
|
|
NTSTATUS Status;
|
|
HANDLE LogFile = INVALID_HANDLE_VALUE;
|
|
ULONG BufferSize;
|
|
ULONG MemorySize;
|
|
ULONG TraceKernel;
|
|
SYSTEM_BASIC_INFORMATION SystemInfo;
|
|
WMI_LOGGER_CONTEXT Logger;
|
|
IO_STATUS_BLOCK IoStatus;
|
|
PWMI_BUFFER_HEADER Buffer;
|
|
FILE_POSITION_INFORMATION FileInfo;
|
|
LPWSTR FileName = NULL;
|
|
LPWSTR FileNameBuffer = NULL;
|
|
ULONG HeaderSize;
|
|
|
|
struct WMI_LOGFILE_HEADER {
|
|
WMI_BUFFER_HEADER BufferHeader;
|
|
SYSTEM_TRACE_HEADER SystemHeader;
|
|
TRACE_LOGFILE_HEADER LogFileHeader;
|
|
};
|
|
struct WMI_LOGFILE_HEADER LoggerBuffer;
|
|
BOOLEAN bLogFileAppend =
|
|
(LoggerInfo->LogFileMode & EVENT_TRACE_FILE_MODE_APPEND)
|
|
? (TRUE) : (FALSE);
|
|
|
|
if (LoggerInfo == NULL)
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if (LoggerInfo->Wnode.BufferSize < sizeof(WMI_LOGGER_INFORMATION))
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if ( !(LoggerInfo->Wnode.Flags & WNODE_FLAG_TRACED_GUID) )
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
|
|
if ((LoggerInfo->LogFileMode & EVENT_TRACE_FILE_MODE_NEWFILE) &&
|
|
(LoggerInfo->LogFileName.Length > 0)) {
|
|
FileName = (LPWSTR) WmipAlloc(LoggerInfo->LogFileName.Length + 64);
|
|
if (FileName == NULL) {
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
swprintf(FileName, LoggerInfo->LogFileName.Buffer, 1);
|
|
FileNameBuffer = FileName;
|
|
}
|
|
if (FileName == NULL)
|
|
FileName = (LPWSTR) LoggerInfo->LogFileName.Buffer;
|
|
|
|
//
|
|
// If it is Append Mode, we need to open the file and make sure the
|
|
// pick up the BufferSize
|
|
//
|
|
|
|
if ( bLogFileAppend ) {
|
|
|
|
ULONG ReadSize = sizeof(WMI_BUFFER_HEADER)
|
|
+ sizeof(SYSTEM_TRACE_HEADER)
|
|
+ sizeof(TRACE_LOGFILE_HEADER);
|
|
ULONG nBytesRead = 0;
|
|
|
|
//
|
|
// Update and Append do not mix. To Append LoggerInfo
|
|
// must have LogFileName
|
|
//
|
|
|
|
if ( (Update) || (LoggerInfo->LogFileName.Length <= 0) ) {
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
LogFile = WmipCreateFileW(FileName,
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_READ,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
if (LogFile == INVALID_HANDLE_VALUE) {
|
|
// cannot OPEN_EXISTING, assume that logfile is not there and
|
|
// create a new one.
|
|
//
|
|
bLogFileAppend = FALSE;
|
|
LoggerInfo->LogFileMode = LoggerInfo->LogFileMode
|
|
& (~ (EVENT_TRACE_FILE_MODE_APPEND));
|
|
}
|
|
|
|
else {
|
|
// read TRACE_LOGFILE_HEADER structure and update LoggerInfo
|
|
// members.
|
|
//
|
|
Status = WmipReadFile(LogFile,
|
|
(LPVOID) & LoggerBuffer,
|
|
ReadSize,
|
|
& nBytesRead,
|
|
NULL);
|
|
if (nBytesRead < ReadSize) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_BAD_PATHNAME);
|
|
}
|
|
if ( LoggerBuffer.LogFileHeader.LogFileMode
|
|
& EVENT_TRACE_FILE_MODE_CIRCULAR) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_BAD_PATHNAME);
|
|
}
|
|
LoggerInfo->BufferSize =
|
|
LoggerBuffer.LogFileHeader.BufferSize / 1024;
|
|
LoggerInfo->BuffersWritten =
|
|
LoggerBuffer.LogFileHeader.BuffersWritten;
|
|
LoggerInfo->MaximumFileSize =
|
|
LoggerBuffer.LogFileHeader.MaximumFileSize;
|
|
|
|
// Write back logfile append mode so WmipFinalizeLogFile() correctly
|
|
// update BuffersWritten field
|
|
//
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(EndTime);
|
|
Status = NtSetInformationFile(LogFile,
|
|
& IoStatus,
|
|
& FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation);
|
|
if (!NT_SUCCESS(Status)) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetNtStatus(Status);
|
|
}
|
|
LoggerBuffer.LogFileHeader.EndTime.QuadPart = 0;
|
|
Status = NtWriteFile(LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
& IoStatus,
|
|
& LoggerBuffer.LogFileHeader.EndTime,
|
|
sizeof(LARGE_INTEGER),
|
|
NULL,
|
|
NULL);
|
|
if (! NT_SUCCESS(Status)) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetNtStatus(Status);
|
|
}
|
|
|
|
// build checksum structure
|
|
//
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
|
|
LoggerInfo->Checksum = NULL;
|
|
}
|
|
else {
|
|
LoggerInfo->Checksum = WmipAlloc(
|
|
sizeof(WNODE_HEADER) + sizeof(TRACE_LOGFILE_HEADER));
|
|
if (LoggerInfo->Checksum != NULL) {
|
|
PBYTE ptrChecksum = LoggerInfo->Checksum;
|
|
RtlCopyMemory(ptrChecksum,
|
|
& LoggerBuffer.BufferHeader,
|
|
sizeof(WNODE_HEADER));
|
|
ptrChecksum += sizeof(WNODE_HEADER);
|
|
RtlCopyMemory(ptrChecksum,
|
|
& LoggerBuffer.LogFileHeader,
|
|
sizeof(TRACE_LOGFILE_HEADER));
|
|
}
|
|
else {
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// get the system parameters first
|
|
|
|
LoggerInfo->LogFileHandle = NULL;
|
|
|
|
Status = NtQuerySystemInformation(
|
|
SystemBasicInformation,
|
|
&SystemInfo, sizeof (SystemInfo), NULL);
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetNtStatus(Status);
|
|
}
|
|
|
|
// choose some logical default value for buffer size if user
|
|
// has not provided one
|
|
|
|
MemorySize = SystemInfo.NumberOfPhysicalPages * SystemInfo.PageSize
|
|
/ 1024 / 1024;
|
|
if (MemorySize <= 32)
|
|
BufferSize = SystemInfo.PageSize;
|
|
else if (MemorySize <= 64)
|
|
BufferSize = SystemInfo.PageSize;
|
|
else if (MemorySize <= 128)
|
|
BufferSize = SystemInfo.PageSize * 2;
|
|
else if (MemorySize <= 256)
|
|
BufferSize = SystemInfo.PageSize * 2;
|
|
else if (MemorySize > 512)
|
|
BufferSize = SystemInfo.PageSize * 2;
|
|
else if (MemorySize <= 256)
|
|
BufferSize = SystemInfo.PageSize * 2;
|
|
else if (MemorySize > 512)
|
|
BufferSize = 64 * 1024; // allocation size
|
|
else // > 256 && < 512
|
|
BufferSize = SystemInfo.PageSize * 2;
|
|
|
|
if (LoggerInfo->BufferSize > 1024) // limit to 1Mb
|
|
BufferSize = 1024 * 1024;
|
|
else if (LoggerInfo->BufferSize > 0)
|
|
BufferSize = LoggerInfo->BufferSize * 1024;
|
|
|
|
TraceKernel = IsEqualGUID(&LoggerInfo->Wnode.Guid, &SystemTraceControlGuid);
|
|
if (!TraceKernel) {
|
|
GUID guid;
|
|
RtlZeroMemory(&guid, sizeof(GUID));
|
|
if (IsEqualGUID(&LoggerInfo->Wnode.Guid, &guid)) {
|
|
// Generate a Guid for this logger stream
|
|
// This will ensure buffer filtering at the WMI service
|
|
// based on this GUID.
|
|
UUID uid;
|
|
WmipUuidCreate(&uid);
|
|
LoggerInfo->Wnode.Guid = uid;
|
|
}
|
|
}
|
|
|
|
if (!Update) {
|
|
// don't want to update BufferSize information if the request is
|
|
// to update logger session
|
|
//
|
|
LoggerInfo->BufferSize = BufferSize / 1024;
|
|
}
|
|
|
|
if (LoggerInfo->LogFileName.Length <= 0)
|
|
return ERROR_SUCCESS; //goto SendToKm;
|
|
//
|
|
// We assumed the exposed API has checked for either RealTime or FileName
|
|
// is provided
|
|
|
|
//
|
|
// open the file for writing synchronously for the logger
|
|
// others may want to read it as well.
|
|
// For logfile append mode, logfile has been opened previously
|
|
//
|
|
if (! bLogFileAppend) {
|
|
/* LogFile = WmipCreateFileW(
|
|
(PWCHAR) LoggerInfo->LogFileName.Buffer,
|
|
GENERIC_WRITE,
|
|
FILE_SHARE_READ,
|
|
NULL,
|
|
CREATE_ALWAYS,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL
|
|
); */
|
|
LogFile = WmipCreateFile(
|
|
FileName,
|
|
FILE_GENERIC_WRITE,
|
|
FILE_SHARE_READ,
|
|
FILE_OVERWRITE_IF,
|
|
0);
|
|
|
|
if (LogFile == INVALID_HANDLE_VALUE) {
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_BAD_PATHNAME);
|
|
}
|
|
}
|
|
|
|
LoggerInfo->LogFileHandle = LogFile;
|
|
|
|
|
|
//
|
|
// If this is an Update call, then we need to pick up the original
|
|
// buffer size for the LogFileHeader.
|
|
//
|
|
|
|
if (Update) {
|
|
PWMI_LOGGER_INFORMATION pTempLoggerInfo;
|
|
PWCHAR strLoggerName = NULL;
|
|
PWCHAR strLogFileName = NULL;
|
|
ULONG ErrCode;
|
|
ULONG SizeNeeded = sizeof(WMI_LOGGER_INFORMATION) + MAXSTR * sizeof(WCHAR) * 2;
|
|
SizeNeeded = (SizeNeeded +7) & ~7;
|
|
pTempLoggerInfo = WmipAlloc(SizeNeeded);
|
|
if (pTempLoggerInfo == NULL) {
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
RtlZeroMemory(pTempLoggerInfo, SizeNeeded);
|
|
pTempLoggerInfo->Wnode.BufferSize = SizeNeeded;
|
|
pTempLoggerInfo->Wnode.Flags |= WNODE_FLAG_TRACED_GUID;
|
|
pTempLoggerInfo->Wnode.HistoricalContext = LoggerInfo->Wnode.HistoricalContext;
|
|
pTempLoggerInfo->Wnode.Guid = LoggerInfo->Wnode.Guid;
|
|
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
|
|
pTempLoggerInfo->LogFileMode |= EVENT_TRACE_PRIVATE_LOGGER_MODE;
|
|
}
|
|
|
|
strLoggerName = (PWCHAR) ( ((PUCHAR) pTempLoggerInfo)
|
|
+ sizeof(WMI_LOGGER_INFORMATION));
|
|
WmipInitString(&pTempLoggerInfo->LoggerName,
|
|
strLoggerName,
|
|
MAXSTR * sizeof(WCHAR));
|
|
if (LoggerInfo->LoggerName.Length > 0) {
|
|
RtlCopyUnicodeString( &pTempLoggerInfo->LoggerName,
|
|
&LoggerInfo->LoggerName);
|
|
}
|
|
|
|
|
|
strLogFileName = (PWCHAR) ( ((PUCHAR) pTempLoggerInfo)
|
|
+ sizeof(WMI_LOGGER_INFORMATION)
|
|
+ MAXSTR * sizeof(WCHAR) );
|
|
WmipInitString(&pTempLoggerInfo->LogFileName,
|
|
strLogFileName,
|
|
MAXSTR * sizeof(WCHAR) );
|
|
|
|
//
|
|
// Call QueryLogger
|
|
//
|
|
ErrCode = WmipQueryLogger(pTempLoggerInfo, FALSE);
|
|
|
|
BufferSize = pTempLoggerInfo->BufferSize * 1024;
|
|
WmipFree(pTempLoggerInfo);
|
|
|
|
if (ErrCode != ERROR_SUCCESS) {
|
|
return ErrCode;
|
|
}
|
|
}
|
|
//
|
|
// Before Allocating the Buffer for Logfile Header make
|
|
// sure the buffer size is atleast as large as the LogFileHeader
|
|
//
|
|
|
|
HeaderSize = sizeof(LoggerBuffer)
|
|
+ LoggerInfo->LoggerName.Length + sizeof(WCHAR)
|
|
+ LoggerInfo->LogFileName.Length + sizeof(WCHAR);
|
|
|
|
if (HeaderSize > BufferSize) {
|
|
//
|
|
// Round it to the nearest power of 2 and check for max size 1 MB
|
|
//
|
|
double dTemp = log (HeaderSize / 1024.0) / log (2.0);
|
|
ULONG lTemp = (ULONG) (dTemp + 0.99);
|
|
HeaderSize = (1 << lTemp);
|
|
if (HeaderSize > 1024) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
LoggerInfo->BufferSize = HeaderSize;
|
|
BufferSize = HeaderSize * 1024;
|
|
}
|
|
|
|
|
|
|
|
// allocate a buffer to write logger header and process/thread
|
|
// rundown information
|
|
//
|
|
Logger.LogFileHandle = LogFile;
|
|
Logger.BufferSize = BufferSize;
|
|
Logger.TimerResolution = SystemInfo.TimerResolution;
|
|
Logger.BufferSpace = WmipAlloc(BufferSize);
|
|
if (Logger.BufferSpace == NULL) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
if (LoggerInfo->Wnode.ClientContext != EVENT_TRACE_CLOCK_SYSTEMTIME) {
|
|
LoggerInfo->Wnode.ClientContext = EVENT_TRACE_CLOCK_PERFCOUNTER;
|
|
}
|
|
Logger.UsePerfClock = LoggerInfo->Wnode.ClientContext;
|
|
|
|
// initialize buffer first
|
|
RtlZeroMemory(Logger.BufferSpace, BufferSize);
|
|
Buffer = (PWMI_BUFFER_HEADER) Logger.BufferSpace;
|
|
Buffer->Offset = sizeof(WMI_BUFFER_HEADER);
|
|
if (TraceKernel) {
|
|
Buffer->Wnode.Guid = SystemTraceControlGuid;
|
|
}
|
|
else {
|
|
Buffer->Wnode.Guid = LoggerInfo->Wnode.Guid;
|
|
}
|
|
Buffer->Wnode.BufferSize = BufferSize;
|
|
Buffer->ClientContext.Alignment = (UCHAR)WmiTraceAlignment;
|
|
Buffer->Wnode.Flags = WNODE_FLAG_TRACED_GUID;
|
|
|
|
if (bLogFileAppend) {
|
|
Logger.BuffersWritten = LoggerBuffer.LogFileHeader.BuffersWritten;
|
|
WmipSetFilePointer(LogFile, 0, NULL, FILE_END);
|
|
}
|
|
else {
|
|
PTRACE_LOGFILE_HEADER LogfileHeader;
|
|
OSVERSIONINFO sVersionInfo;
|
|
|
|
Logger.BuffersWritten = 0;
|
|
HeaderSize = sizeof(TRACE_LOGFILE_HEADER)
|
|
+ LoggerInfo->LoggerName.Length + sizeof(WCHAR)
|
|
+ LoggerInfo->LogFileName.Length + sizeof(WCHAR);
|
|
|
|
|
|
|
|
LogfileHeader = (PTRACE_LOGFILE_HEADER)
|
|
WmipGetTraceBuffer(
|
|
&Logger,
|
|
NULL,
|
|
EVENT_TRACE_GROUP_HEADER + EVENT_TRACE_TYPE_INFO,
|
|
HeaderSize
|
|
);
|
|
if (LogfileHeader == NULL) {
|
|
NtClose(LogFile);
|
|
WmipFree(Logger.BufferSpace);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
|
|
if (Logger.UsePerfClock == EVENT_TRACE_CLOCK_PERFCOUNTER) {
|
|
LARGE_INTEGER CurrentTime;
|
|
LARGE_INTEGER Frequency;
|
|
Status = NtQueryPerformanceCounter(&CurrentTime, &Frequency);
|
|
LogfileHeader->PerfFreq = Frequency;
|
|
|
|
LogfileHeader->ReservedFlags = EVENT_TRACE_CLOCK_PERFCOUNTER;
|
|
}
|
|
|
|
//
|
|
// Start and End Times are wall clock time
|
|
//
|
|
if (RefClock != NULL) {
|
|
PSYSTEM_TRACE_HEADER Header;
|
|
LogfileHeader->StartTime = RefClock->StartTime;
|
|
Header = (PSYSTEM_TRACE_HEADER) ( (char *) LogfileHeader - sizeof(SYSTEM_TRACE_HEADER) );
|
|
Header->SystemTime = RefClock->StartPerfClock;
|
|
}
|
|
else {
|
|
LogfileHeader->StartTime.QuadPart = WmipGetSystemTime();
|
|
}
|
|
|
|
RtlZeroMemory(&sVersionInfo, sizeof(OSVERSIONINFO));
|
|
sVersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
|
|
WmipGetVersionExA(&sVersionInfo);
|
|
|
|
LogfileHeader->BufferSize = BufferSize;
|
|
LogfileHeader->VersionDetail.MajorVersion =
|
|
(UCHAR)sVersionInfo.dwMajorVersion;
|
|
LogfileHeader->VersionDetail.MinorVersion =
|
|
(UCHAR)sVersionInfo.dwMinorVersion;
|
|
LogfileHeader->VersionDetail.SubVersion = TRACE_VERSION_MAJOR;
|
|
LogfileHeader->VersionDetail.SubMinorVersion = TRACE_VERSION_MINOR;
|
|
LogfileHeader->ProviderVersion = sVersionInfo.dwBuildNumber;
|
|
LogfileHeader->StartBuffers = 1;
|
|
LogfileHeader->LogFileMode
|
|
= LoggerInfo->LogFileMode & (~(EVENT_TRACE_REAL_TIME_MODE));
|
|
LogfileHeader->NumberOfProcessors = SystemInfo.NumberOfProcessors;
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE)
|
|
{
|
|
if ( (LoggerInfo->NumberOfProcessors > 0) &&
|
|
(LoggerInfo->LogFileMode & EVENT_TRACE_RELOG_MODE) ) {
|
|
LogfileHeader->NumberOfProcessors = LoggerInfo->NumberOfProcessors;
|
|
}
|
|
else {
|
|
LoggerInfo->NumberOfProcessors = SystemInfo.NumberOfProcessors;
|
|
}
|
|
}
|
|
|
|
LogfileHeader->MaximumFileSize = LoggerInfo->MaximumFileSize;
|
|
|
|
LogfileHeader->TimerResolution = SystemInfo.TimerResolution;
|
|
LogfileHeader->LoggerName = (PWCHAR) ( (PUCHAR) LogfileHeader
|
|
+ sizeof(TRACE_LOGFILE_HEADER) );
|
|
LogfileHeader->LogFileName = (PWCHAR) ((PUCHAR)LogfileHeader->LoggerName
|
|
+ LoggerInfo->LoggerName.Length
|
|
+ sizeof (WCHAR));
|
|
RtlCopyMemory(LogfileHeader->LoggerName,
|
|
LoggerInfo->LoggerName.Buffer,
|
|
LoggerInfo->LoggerName.Length + sizeof(WCHAR));
|
|
RtlCopyMemory(LogfileHeader->LogFileName,
|
|
LoggerInfo->LogFileName.Buffer,
|
|
LoggerInfo->LogFileName.Length + sizeof(WCHAR));
|
|
WmipGetTimeZoneInformation(&LogfileHeader->TimeZone);
|
|
LogfileHeader->PointerSize = sizeof(PVOID);
|
|
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
|
|
LoggerInfo->Checksum = NULL;
|
|
}
|
|
else {
|
|
LoggerInfo->Checksum = WmipAlloc(
|
|
sizeof(WNODE_HEADER)
|
|
+ sizeof(TRACE_LOGFILE_HEADER));
|
|
if (LoggerInfo->Checksum != NULL) {
|
|
PBYTE ptrChecksum = LoggerInfo->Checksum;
|
|
RtlCopyMemory(ptrChecksum, Buffer, sizeof(WNODE_HEADER));
|
|
ptrChecksum += sizeof(WNODE_HEADER);
|
|
RtlCopyMemory(
|
|
ptrChecksum, LogfileHeader, sizeof(TRACE_LOGFILE_HEADER));
|
|
}
|
|
else {
|
|
NtClose(LogFile);
|
|
WmipFree(Logger.BufferSpace);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetDosError(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Dump the GuidMaps to File at the Start
|
|
//
|
|
if (!Update) {
|
|
if (TraceKernel) {
|
|
ULONG EnableFlags = LoggerInfo->EnableFlags;
|
|
|
|
if (EnableFlags & EVENT_TRACE_FLAG_EXTENSION) {
|
|
PTRACE_ENABLE_FLAG_EXTENSION tFlagExt;
|
|
|
|
tFlagExt = (PTRACE_ENABLE_FLAG_EXTENSION)
|
|
&LoggerInfo->EnableFlags;
|
|
EnableFlags = *(PULONG)((PCHAR)LoggerInfo + tFlagExt->Offset);
|
|
}
|
|
|
|
WmipDumpHardwareConfig(&Logger);
|
|
|
|
|
|
WmipProcessRunDown( &Logger, TRUE, EnableFlags );
|
|
}
|
|
else {
|
|
WmipDumpGuidMaps(&Logger, NULL, FALSE);
|
|
}
|
|
}
|
|
|
|
Buffer = (PWMI_BUFFER_HEADER) Logger.BufferSpace;
|
|
// flush the last buffer
|
|
if (Buffer->Offset < Logger.BufferSize) {
|
|
RtlFillMemory(
|
|
(char *) Buffer + Buffer->Offset,
|
|
Logger.BufferSize - Buffer->Offset,
|
|
0xFF);
|
|
}
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
Logger.BufferSpace,
|
|
BufferSize,
|
|
NULL,
|
|
NULL);
|
|
|
|
Logger.BuffersWritten++;
|
|
|
|
if ((LoggerInfo->LogFileMode == EVENT_TRACE_FILE_MODE_CIRCULAR) ) {
|
|
//
|
|
// We need to write the number of StartBuffers in the
|
|
// Circular Logfile header to process it properly.
|
|
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(StartBuffers);
|
|
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
NtClose(LogFile);
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
return WmipSetNtStatus(Status);
|
|
}
|
|
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&Logger.BuffersWritten,
|
|
sizeof(ULONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
PTRACE_LOGFILE_HEADER pLogFileHeader;
|
|
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
|
|
// update StartBuffers in Checksum
|
|
//
|
|
pLogFileHeader = (PTRACE_LOGFILE_HEADER)
|
|
(((PUCHAR) LoggerInfo->Checksum) + sizeof(WNODE_HEADER));
|
|
pLogFileHeader->StartBuffers = Logger.BuffersWritten;
|
|
}
|
|
}
|
|
|
|
//
|
|
// As a last thing update the Number of BuffersWritten so far
|
|
// in the header and also update the checksum. This is to prevent
|
|
// Logger failing Update calls under high load.
|
|
//
|
|
|
|
FileInfo.CurrentByteOffset.QuadPart =
|
|
LOGFILE_FIELD_OFFSET(BuffersWritten);
|
|
|
|
Status = NtSetInformationFile(
|
|
LogFile,
|
|
&IoStatus,
|
|
&FileInfo,
|
|
sizeof(FILE_POSITION_INFORMATION),
|
|
FilePositionInformation
|
|
);
|
|
if (!NT_SUCCESS(Status)) {
|
|
NtClose(LogFile);
|
|
return WmipSetNtStatus(Status);
|
|
}
|
|
|
|
Status = NtWriteFile(
|
|
LogFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatus,
|
|
&Logger.BuffersWritten,
|
|
sizeof(ULONG),
|
|
NULL,
|
|
NULL
|
|
);
|
|
if (NT_SUCCESS(Status)) {
|
|
PTRACE_LOGFILE_HEADER pLogFileHeader;
|
|
|
|
NtFlushBuffersFile(Logger.LogFileHandle, &IoStatus);
|
|
|
|
// update StartBuffers in Checksum
|
|
//
|
|
if ( !(LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) ) {
|
|
pLogFileHeader = (PTRACE_LOGFILE_HEADER)
|
|
(((PUCHAR) LoggerInfo->Checksum) + sizeof(WNODE_HEADER));
|
|
pLogFileHeader->BuffersWritten = Logger.BuffersWritten;
|
|
}
|
|
}
|
|
|
|
NtClose(LogFile);
|
|
|
|
LogFile = WmipCreateFileW(
|
|
FileName,
|
|
GENERIC_WRITE,
|
|
FILE_SHARE_READ,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_FLAG_NO_BUFFERING,
|
|
NULL
|
|
);
|
|
/* LogFile = WmipCreateFile(
|
|
FileName,
|
|
FILE_GENERIC_WRITE,
|
|
FILE_SHARE_READ,
|
|
FILE_OPEN,
|
|
FILE_NO_INTERMEDIATE_BUFFERING);
|
|
*/
|
|
if (FileNameBuffer != NULL) {
|
|
WmipFree(FileNameBuffer);
|
|
}
|
|
|
|
if (LogFile == INVALID_HANDLE_VALUE) {
|
|
return WmipGetLastError();
|
|
}
|
|
LoggerInfo->LogFileHandle = LogFile;
|
|
LoggerInfo->BuffersWritten = Logger.BuffersWritten;
|
|
WmipFree(Logger.BufferSpace);
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
ULONG
|
|
WmipDumpGuidMaps(
|
|
IN PWMI_LOGGER_CONTEXT Logger,
|
|
IN PLIST_ENTRY GuidMapListHeadPtr,
|
|
IN ULONG RealTimeFlag
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine communicates with the WMI Service and obtains all the
|
|
Trace Guids that are currently registered and those guids that unregistered
|
|
in the middle of a Logging session.
|
|
The GuidMaps are dumped to the logfile or added to the current GuidMapList
|
|
for real time processing.
|
|
|
|
Arguments:
|
|
|
|
Logger Logger Context.
|
|
RealTimeFlag Flag to denote real time processing.
|
|
|
|
Return Value:
|
|
|
|
Returns the number of Trace GUIDS obtained from the WMI service.
|
|
|
|
--*/
|
|
{
|
|
#if 0
|
|
ULONG Status;
|
|
PTRACEGUIDMAP GuidMapList = NULL;
|
|
ULONG MaxGuidCount;
|
|
ULONG TotalGuidCount;
|
|
ULONG ReturnGuidCount;
|
|
ULONG BusyRetries;
|
|
|
|
// Ensure that wmi service is around and willing to send us notifications
|
|
Status = WmipEnableNotifications();
|
|
if (Status != ERROR_SUCCESS)
|
|
{
|
|
WmipSetLastError(Status);
|
|
return(0);
|
|
}
|
|
MaxGuidCount = 10;
|
|
retry:
|
|
TotalGuidCount = 0;
|
|
ReturnGuidCount = 0;
|
|
GuidMapList = WmipAlloc(MaxGuidCount * sizeof(TRACEGUIDMAP));
|
|
if (GuidMapList == NULL)
|
|
{
|
|
WmipSetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
|
return (0);
|
|
}
|
|
RtlZeroMemory(GuidMapList, MaxGuidCount * sizeof(TRACEGUIDMAP));
|
|
|
|
BusyRetries = 0;
|
|
do
|
|
{
|
|
try
|
|
{
|
|
#if 0
|
|
Status = EnumerateTraceGuidMap(WmipDcCtxHandle,
|
|
MaxGuidCount,
|
|
&TotalGuidCount,
|
|
&ReturnGuidCount,
|
|
GuidMapList);
|
|
#endif
|
|
} except(EXCEPTION_EXECUTE_HANDLER) {
|
|
Status = GetExceptionCode();
|
|
if (Status == STATUS_ACCESS_VIOLATION)
|
|
{
|
|
Status = ERROR_NOACCESS;
|
|
WmipFree(GuidMapList);
|
|
WmipSetLastError(Status);
|
|
return (0);
|
|
}
|
|
}
|
|
if (Status == RPC_S_SERVER_TOO_BUSY)
|
|
{
|
|
WmipDebugPrint(("WMI: EnumerateTraceGuidMap too busy for the %d time\n",
|
|
BusyRetries));
|
|
WmipSleep(RPC_BUSY_WAIT_TIMER);
|
|
BusyRetries++;
|
|
}
|
|
} while ((Status == RPC_S_SERVER_TOO_BUSY) &&
|
|
(BusyRetries < RPC_BUSY_WAIT_RETRIES));
|
|
|
|
//
|
|
// If RPC was successful, then write out these events to logfile.
|
|
//
|
|
|
|
if (Status == ERROR_MORE_DATA) {
|
|
MaxGuidCount = TotalGuidCount;
|
|
WmipFree(GuidMapList);
|
|
goto retry;
|
|
}
|
|
else if (Status == ERROR_SUCCESS) {
|
|
ULONG GroupType;
|
|
ULONG i;
|
|
ULONG Size;
|
|
PULONG AuxInfo;
|
|
PTRACEGUIDMAP pTraceGuidMap = GuidMapList;
|
|
|
|
|
|
GroupType = EVENT_TRACE_GROUP_HEADER + EVENT_TRACE_TYPE_GUIDMAP;
|
|
Size = sizeof(TRACEGUIDMAP);
|
|
|
|
for (i=0; i < ReturnGuidCount; i++) {
|
|
if (RealTimeFlag) {
|
|
WmipAddGuidHandleToGuidMapList(GuidMapListHeadPtr, pTraceGuidMap->GuidMapHandle,
|
|
&pTraceGuidMap->Guid);
|
|
}
|
|
else {
|
|
AuxInfo = (PULONG) WmipGetTraceBuffer(
|
|
Logger,
|
|
NULL,
|
|
GroupType,
|
|
Size);
|
|
if (AuxInfo == NULL) {
|
|
WmipFree(GuidMapList);
|
|
WmipSetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(0);
|
|
}
|
|
RtlCopyMemory(AuxInfo, pTraceGuidMap, sizeof(TRACEGUIDMAP));
|
|
}
|
|
pTraceGuidMap++;
|
|
}
|
|
}
|
|
WmipFree(GuidMapList);
|
|
WmipSetLastError(Status);
|
|
return(ReturnGuidCount);
|
|
#else
|
|
WmipSetLastError(ERROR_INVALID_PARAMETER);
|
|
return(0);
|
|
#endif
|
|
}
|
|
|
|
ULONG
|
|
WmiUnregisterGuids(
|
|
IN WMIHANDLE WMIHandle,
|
|
IN LPGUID Guid,
|
|
OUT ULONG64 *LoggerContext
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine informs WMI that a data provider is no longer available
|
|
to receive requests for the guids previously registered. WMI will
|
|
unregister any guids registered with this handle.
|
|
|
|
Arguments:
|
|
|
|
WMIHandle - Handle returned from WMIRegisterGuids that represents
|
|
the guids whose data is not longer available.
|
|
Guid - Pointer to the control Guid which is unregistering
|
|
|
|
LoggerContext - Returned value of the LoggerContext
|
|
|
|
Return Value:
|
|
|
|
Returns status code
|
|
|
|
--*/
|
|
{
|
|
ULONG Status;
|
|
ULONG ReturnSize;
|
|
WMIUNREGGUIDS UnregGuids;
|
|
|
|
UnregGuids.RequestHandle.Handle = WMIHandle;
|
|
UnregGuids.Guid = *Guid;
|
|
|
|
Status = WmipSendWmiKMRequest(NULL,
|
|
IOCTL_WMI_UNREGISTER_GUIDS,
|
|
&UnregGuids,
|
|
sizeof(WMIUNREGGUIDS),
|
|
&UnregGuids,
|
|
sizeof(WMIUNREGGUIDS),
|
|
&ReturnSize,
|
|
NULL);
|
|
|
|
|
|
|
|
WmipSetLastError(Status);
|
|
return(Status);
|
|
}
|
|
|
|
ULONG
|
|
WmipFlushLogger(
|
|
IN OUT PWMI_LOGGER_INFORMATION LoggerInfo
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This is the actual routine to communicate with the kernel to start
|
|
the logger. All the required parameters must be in LoggerInfo.
|
|
|
|
Arguments:
|
|
|
|
LoggerInfo The actual parameters to be passed to and return from
|
|
kernel.
|
|
|
|
Return Value:
|
|
|
|
The status of performing the action requested.
|
|
|
|
--*/
|
|
{
|
|
ULONG Status;
|
|
ULONG BufferSize;
|
|
PTRACE_ENABLE_CONTEXT pContext;
|
|
|
|
if ( (LoggerInfo == NULL)
|
|
|| (LoggerInfo->Wnode.BufferSize < sizeof(WMI_LOGGER_INFORMATION))
|
|
|| (! (LoggerInfo->Wnode.Flags & WNODE_FLAG_TRACED_GUID))) {
|
|
return WmipSetDosError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
pContext = (PTRACE_ENABLE_CONTEXT) & LoggerInfo->Wnode.HistoricalContext;
|
|
if ( (pContext->InternalFlag != 0)
|
|
&& (pContext->InternalFlag != EVENT_TRACE_INTERNAL_FLAG_PRIVATE)) {
|
|
// Currently only one possible InternalFlag value. This will filter
|
|
// out some bogus LoggerHandle
|
|
//
|
|
return WmipSetDosError(ERROR_INVALID_HANDLE);
|
|
}
|
|
|
|
if (LoggerInfo->LogFileMode & EVENT_TRACE_PRIVATE_LOGGER_MODE) {
|
|
Status = WmipSendUmLogRequest(
|
|
WmiFlushLoggerCode,
|
|
LoggerInfo
|
|
);
|
|
}
|
|
else {
|
|
|
|
Status = WmipSendWmiKMRequest( // actually start the logger here
|
|
NULL,
|
|
IOCTL_WMI_FLUSH_LOGGER,
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
LoggerInfo,
|
|
LoggerInfo->Wnode.BufferSize,
|
|
&BufferSize,
|
|
NULL
|
|
);
|
|
}
|
|
|
|
return WmipSetDosError(Status);
|
|
}
|
|
#endif
|