DefaultQueryInfoBufferCheck

DefaultSetInfoBufferCheck

static __inline NTSTATUS DefaultSetInfoBufferCheck	(	ULONG	Class,
		const INFORMATION_CLASS_INFO *	ClassList,
		ULONG	ClassListEntries,
		PVOID	Buffer,
		ULONG	BufferLength,
		KPROCESSOR_MODE	PreviousMode
	)		`[static]`

Definition at line 8 of file probe.h.

Referenced by NtSetInformationDebugObject(), NtSetInformationProcess(), NtSetInformationThread(), and NtSetInformationToken().

{
    NTSTATUS Status = STATUS_SUCCESS;

    if (Class < ClassListEntries)
    {
        if (!(ClassList[Class].Flags & ICIF_SET))
        {
            Status = STATUS_INVALID_INFO_CLASS;
        }
        else if (ClassList[Class].RequiredSizeSET > 0 &&
                 BufferLength != ClassList[Class].RequiredSizeSET)
        {
            if (!(ClassList[Class].Flags & ICIF_SET_SIZE_VARIABLE))
            {
                Status = STATUS_INFO_LENGTH_MISMATCH;
            }
        }

        if (NT_SUCCESS(Status))
        {
            if (PreviousMode != KernelMode)
            {
                _SEH2_TRY
                {
                    ProbeForRead(Buffer,
                                 BufferLength,
                                 ClassList[Class].AlignmentSET);
                }
                _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
                {
                    Status = _SEH2_GetExceptionCode();
                }
                _SEH2_END;
            }
        }
    }
    else
        Status = STATUS_INVALID_INFO_CLASS;

    return Status;
}

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