reactos/ntoskrnl/fsrtl/filter.c

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/*
* PROJECT: ReactOS Kernel
* LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/fsrtl/filter.c
* PURPOSE: Provides support for usage of SEH inside File System Drivers
* PROGRAMMERS: None.
*/
/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
#undef FsRtlAllocatePoolWithQuotaTag
#undef FsRtlAllocatePoolWithTag
/* PUBLIC FUNCTIONS **********************************************************/
/*++
* @name FsRtlIsTotalDeviceFailure
* @implemented NT 4.0
*
* The FsRtlIsTotalDeviceFailure routine checks if an NTSTATUS error code
* represents a disk hardware failure.
*
* @param NtStatus
* The NTSTATUS Code to Test
*
* @return TRUE in case of Hardware Failure, FALSE otherwise.
*
* @remarks None.
*
*--*/
BOOLEAN
NTAPI
FsRtlIsTotalDeviceFailure(IN NTSTATUS NtStatus)
{
return((NT_SUCCESS(NtStatus)) ||
(STATUS_CRC_ERROR == NtStatus) ||
(STATUS_DEVICE_DATA_ERROR == NtStatus) ? FALSE : TRUE);
}
/*++
* @name FsRtlIsNtstatusExpected
* @implemented NT 4.0
*
* The FsRtlIsNtstatusExpected routine checks if an NTSTATUS error code
* is expected by the File System Support Library.
*
* @param NtStatus
* The NTSTATUS Code to Test
*
* @return TRUE if the Value is Expected, FALSE otherwise.
*
* @remarks None.
*
*--*/
BOOLEAN
NTAPI
FsRtlIsNtstatusExpected(IN NTSTATUS NtStatus)
{
return((STATUS_DATATYPE_MISALIGNMENT == NtStatus) ||
(STATUS_ACCESS_VIOLATION == NtStatus) ||
(STATUS_ILLEGAL_INSTRUCTION == NtStatus) ||
(STATUS_INSTRUCTION_MISALIGNMENT == NtStatus)) ? FALSE : TRUE;
}
/*++
* @name FsRtlNormalizeNtstatus
* @implemented NT 4.0
*
* The FsRtlNormalizeNtstatus routine normalizes an NTSTATUS error code.
*
* @param NtStatusToNormalize
* The NTSTATUS error code to Normalize.
*
* @param NormalizedNtStatus
* The NTSTATUS error code to return if the NtStatusToNormalize is not
* a proper expected error code by the File System Library.
*
* @return NtStatusToNormalize if it is an expected value, otherwise
* NormalizedNtStatus.
*
* @remarks None.
*
*--*/
NTSTATUS
NTAPI
FsRtlNormalizeNtstatus(IN NTSTATUS NtStatusToNormalize,
IN NTSTATUS NormalizedNtStatus)
{
return(TRUE == FsRtlIsNtstatusExpected(NtStatusToNormalize)) ?
NtStatusToNormalize : NormalizedNtStatus;
}
/*++
* @name FsRtlAllocatePool
* @implemented
*
* FILLME
*
* @param PoolType
* FILLME
*
* @param NumberOfBytes
* FILLME
*
* @return None
*
* @remarks The pool tag used is "FSrt".
*
*--*/
PVOID
NTAPI
FsRtlAllocatePool(IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes)
{
PVOID Address;
Address = ExAllocatePoolWithTag(PoolType,
NumberOfBytes,
IFS_POOL_TAG);
if (NULL == Address)
{
ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
}
return Address;
}
/*++
* @name FsRtlAllocatePoolWithQuota
* @implemented
*
* FILLME
*
* @param PoolType
* FILLME
*
* @param NumberOfBytes
* FILLME
*
* @return None
*
* @remarks The pool tag used is "FSrt".
*
*--*/
PVOID
NTAPI
FsRtlAllocatePoolWithQuota(IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes)
{
PVOID Address;
Address = ExAllocatePoolWithQuotaTag(PoolType,
NumberOfBytes,
IFS_POOL_TAG);
if (NULL == Address)
{
ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
}
return Address;
}
/*++
* @name FsRtlAllocatePoolWithQuotaTag
* @implemented
*
* FILLME
*
* @param PoolType
* FILLME
*
* @param NumberOfBytes
* FILLME
*
* @param Tag
* FILLME
*
* @return None
*
* @remarks None
*
*--*/
PVOID
NTAPI
FsRtlAllocatePoolWithQuotaTag (IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes,
IN ULONG Tag)
{
PVOID Address;
Address = ExAllocatePoolWithQuotaTag(PoolType,
NumberOfBytes,
Tag);
if (NULL == Address)
{
ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
}
return Address;
}
/*++
* @name FsRtlAllocatePoolWithTag
* @implemented
*
* FILLME
*
* @param PoolType
* FILLME
*
* @param NumberOfBytes
* FILLME
*
* @param Tag
* FILLME
*
* @return None
*
* @remarks None
*
*--*/
PVOID
NTAPI
FsRtlAllocatePoolWithTag(IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes,
IN ULONG Tag)
{
PVOID Address;
Address = ExAllocatePoolWithTag(PoolType,
NumberOfBytes,
Tag);
if (NULL == Address)
{
ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
}
return Address;
}