reactos/ntoskrnl/io/iomgr/bootlog.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/io/iomgr/bootlog.c
* PURPOSE: Boot log file support
*
* PROGRAMMERS: Eric Kohl
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
/* GLOBALS ******************************************************************/
static BOOLEAN IopBootLogCreate = FALSE;
static BOOLEAN IopBootLogEnabled = FALSE;
static BOOLEAN IopLogFileEnabled = FALSE;
static ULONG IopLogEntryCount = 0;
static ERESOURCE IopBootLogResource;
/* FUNCTIONS ****************************************************************/
CODE_SEG("INIT")
VOID
IopInitBootLog(BOOLEAN StartBootLog)
{
ExInitializeResourceLite(&IopBootLogResource);
if (StartBootLog) IopStartBootLog();
}
CODE_SEG("INIT")
VOID
IopStartBootLog(VOID)
{
IopBootLogCreate = TRUE;
IopBootLogEnabled = TRUE;
}
VOID
IopStopBootLog(VOID)
{
IopBootLogEnabled = FALSE;
}
VOID
IopBootLog(PUNICODE_STRING DriverName,
BOOLEAN Success)
{
OBJECT_ATTRIBUTES ObjectAttributes;
WCHAR Buffer[256];
WCHAR ValueNameBuffer[8];
UNICODE_STRING KeyName;
UNICODE_STRING ValueName;
HANDLE ControlSetKey;
HANDLE BootLogKey;
NTSTATUS Status;
if (IopBootLogEnabled == FALSE)
return;
ExAcquireResourceExclusiveLite(&IopBootLogResource, TRUE);
DPRINT("Boot log: %wS %wZ\n",
Success ? L"Loaded driver" : L"Did not load driver",
DriverName);
swprintf(Buffer,
L"%ws %wZ",
Success ? L"Loaded driver" : L"Did not load driver",
DriverName);
swprintf(ValueNameBuffer,
L"%lu",
IopLogEntryCount);
RtlInitUnicodeString(&KeyName,
L"\\Registry\\Machine\\System\\CurrentControlSet");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
OBJ_CASE_INSENSITIVE,
NULL,
NULL);
Status = ZwOpenKey(&ControlSetKey,
KEY_ALL_ACCESS,
&ObjectAttributes);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwOpenKey() failed (Status %lx)\n", Status);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
RtlInitUnicodeString(&KeyName, L"BootLog");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
ControlSetKey,
NULL);
Status = ZwCreateKey(&BootLogKey,
KEY_ALL_ACCESS,
&ObjectAttributes,
0,
NULL,
REG_OPTION_NON_VOLATILE,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwCreateKey() failed (Status %lx)\n", Status);
ZwClose(ControlSetKey);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
RtlInitUnicodeString(&ValueName, ValueNameBuffer);
Status = ZwSetValueKey(BootLogKey,
&ValueName,
0,
REG_SZ,
(PVOID)Buffer,
(ULONG)(wcslen(Buffer) + 1) * sizeof(WCHAR));
ZwClose(BootLogKey);
ZwClose(ControlSetKey);
if (!NT_SUCCESS(Status))
{
DPRINT1("NtSetValueKey() failed (Status %lx)\n", Status);
}
else
{
IopLogEntryCount++;
}
ExReleaseResourceLite(&IopBootLogResource);
}
static
NTSTATUS
IopWriteLogFile(PWSTR LogText)
{
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING FileName;
IO_STATUS_BLOCK IoStatusBlock;
HANDLE FileHandle;
PWSTR CrLf = L"\r\n";
NTSTATUS Status;
DPRINT("IopWriteLogFile() called\n");
RtlInitUnicodeString(&FileName,
L"\\SystemRoot\\rosboot.log");
InitializeObjectAttributes(&ObjectAttributes,
&FileName,
OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
NULL,
NULL);
Status = ZwCreateFile(&FileHandle,
FILE_APPEND_DATA | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwCreateFile() failed (Status %lx)\n", Status);
return Status;
}
if (LogText != NULL)
{
Status = ZwWriteFile(FileHandle,
NULL,
NULL,
NULL,
&IoStatusBlock,
LogText,
(ULONG)wcslen(LogText) * sizeof(WCHAR),
NULL,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwWriteFile() failed (Status %lx)\n", Status);
ZwClose(FileHandle);
return Status;
}
}
/* L"\r\n" */
Status = ZwWriteFile(FileHandle,
NULL,
NULL,
NULL,
&IoStatusBlock,
(PVOID)CrLf,
2 * sizeof(WCHAR),
NULL,
NULL);
ZwClose(FileHandle);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwWriteFile() failed (Status %lx)\n", Status);
}
return Status;
}
static
NTSTATUS
IopCreateLogFile(VOID)
{
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING FileName;
IO_STATUS_BLOCK IoStatusBlock;
HANDLE FileHandle;
LARGE_INTEGER ByteOffset;
WCHAR Signature;
NTSTATUS Status;
DPRINT("IopSaveBootLogToFile() called\n");
ExAcquireResourceExclusiveLite(&IopBootLogResource, TRUE);
RtlInitUnicodeString(&FileName,
L"\\SystemRoot\\rosboot.log");
InitializeObjectAttributes(&ObjectAttributes,
&FileName,
OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
NULL,
NULL);
Status = ZwCreateFile(&FileHandle,
FILE_ALL_ACCESS,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_SUPERSEDE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT,
NULL,
0);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwCreateFile() failed (Status %lx)\n", Status);
return Status;
}
ByteOffset.QuadPart = (LONGLONG)0;
Signature = 0xFEFF;
Status = ZwWriteFile(FileHandle,
NULL,
NULL,
NULL,
&IoStatusBlock,
(PVOID)&Signature,
sizeof(WCHAR),
&ByteOffset,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("ZwWriteKey() failed (Status %lx)\n", Status);
}
ZwClose(FileHandle);
return Status;
}
VOID
IopSaveBootLogToFile(VOID)
{
PKEY_VALUE_PARTIAL_INFORMATION KeyInfo;
WCHAR ValueNameBuffer[8];
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING KeyName;
UNICODE_STRING ValueName;
HANDLE KeyHandle;
ULONG BufferSize;
ULONG ResultLength;
ULONG i;
NTSTATUS Status;
if (IopBootLogCreate == FALSE)
return;
DPRINT("IopSaveBootLogToFile() called\n");
ExAcquireResourceExclusiveLite(&IopBootLogResource, TRUE);
Status = IopCreateLogFile();
if (!NT_SUCCESS(Status))
{
DPRINT1("IopCreateLogFile() failed (Status %lx)\n", Status);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
//Status = IopWriteLogFile(L"ReactOS "KERNEL_VERSION_STR);
if (!NT_SUCCESS(Status))
{
DPRINT1("IopWriteLogFile() failed (Status %lx)\n", Status);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
Status = IopWriteLogFile(NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("IopWriteLogFile() failed (Status %lx)\n", Status);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
BufferSize = sizeof(KEY_VALUE_PARTIAL_INFORMATION) + 256 * sizeof(WCHAR);
KeyInfo = ExAllocatePool(PagedPool,
BufferSize);
if (KeyInfo == NULL)
{
ExReleaseResourceLite(&IopBootLogResource);
return;
}
RtlInitUnicodeString(&KeyName,
L"\\Registry\\Machine\\System\\CurrentControlSet\\BootLog");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
OBJ_CASE_INSENSITIVE,
NULL,
NULL);
Status = ZwOpenKey(&KeyHandle,
KEY_ALL_ACCESS,
&ObjectAttributes);
if (!NT_SUCCESS(Status))
{
ExFreePool(KeyInfo);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
for (i = 0; ; i++)
{
swprintf(ValueNameBuffer,
L"%lu", i);
RtlInitUnicodeString(&ValueName,
ValueNameBuffer);
Status = ZwQueryValueKey(KeyHandle,
&ValueName,
KeyValuePartialInformation,
KeyInfo,
BufferSize,
&ResultLength);
if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
{
break;
}
if (!NT_SUCCESS(Status))
{
ZwClose(KeyHandle);
ExFreePool(KeyInfo);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
Status = IopWriteLogFile((PWSTR)&KeyInfo->Data);
if (!NT_SUCCESS(Status))
{
ZwClose(KeyHandle);
ExFreePool(KeyInfo);
ExReleaseResourceLite(&IopBootLogResource);
return;
}
/* Delete keys */
ZwDeleteValueKey(KeyHandle,
&ValueName);
}
ZwClose(KeyHandle);
ExFreePool(KeyInfo);
IopLogFileEnabled = TRUE;
ExReleaseResourceLite(&IopBootLogResource);
DPRINT("IopSaveBootLogToFile() done\n");
}
/* EOF */