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/****************************************************************************
**
** Copyright (C) 2019 Denis Shienkov <denis.shienkov@gmail.com>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtSerialPort module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTNTDLL_P_H
#define QTNTDLL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qlibrary.h>
#include <QtCore/qstring.h>
#include <QtCore/qdebug.h>
#include <qt_windows.h>
// Internal control codes.
#ifndef CTL_CODE
# define CTL_CODE(DeviceType, Function, Method, Access) ( \
((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
)
#endif
#ifndef FILE_DEVICE_SERIAL_PORT
# define FILE_DEVICE_SERIAL_PORT 27
#endif
#ifndef METHOD_BUFFERED
# define METHOD_BUFFERED 0
#endif
#ifndef FILE_ANY_ACCESS
# define FILE_ANY_ACCESS 0x00000000
#endif
#ifndef IOCTL_SERIAL_GET_DTRRTS
# define IOCTL_SERIAL_GET_DTRRTS \
CTL_CODE(FILE_DEVICE_SERIAL_PORT, 30, METHOD_BUFFERED, FILE_ANY_ACCESS)
#endif
#ifndef SERIAL_DTR_STATE
# define SERIAL_DTR_STATE 0x00000001
#endif
#ifndef SERIAL_RTS_STATE
# define SERIAL_RTS_STATE 0x00000002
#endif
#ifndef IOCTL_SERIAL_WAIT_ON_MASK
# define IOCTL_SERIAL_WAIT_ON_MASK \
CTL_CODE(FILE_DEVICE_SERIAL_PORT, 18, METHOD_BUFFERED, FILE_ANY_ACCESS)
#endif
// Internal NT-based data types.
#ifndef NT_SUCCESS
#define NT_SUCCESS(status) (((NTSTATUS)(status)) >= 0)
#endif
typedef struct _IO_STATUS_BLOCK {
union {
NTSTATUS Status;
PVOID Pointer;
} DUMMYUNIONNAME;
ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
typedef VOID (WINAPI *PIO_APC_ROUTINE) (
PVOID ApcContext,
PIO_STATUS_BLOCK IoStatusBlock,
ULONG Reserved
);
// Resolving macros.
#define GENERATE_SYMBOL_VARIABLE(returnType, symbolName, ...) \
typedef returnType (WINAPI *fp_##symbolName)(__VA_ARGS__); \
static fp_##symbolName symbolName;
#define RESOLVE_SYMBOL(symbolName) \
symbolName = reinterpret_cast<fp_##symbolName>(resolveNtdllSymbol(ntLibrary, #symbolName)); \
if (!symbolName) \
return false;
GENERATE_SYMBOL_VARIABLE(ULONG, RtlNtStatusToDosError, NTSTATUS)
GENERATE_SYMBOL_VARIABLE(NTSTATUS, NtDeviceIoControlFile, HANDLE, HANDLE, PIO_APC_ROUTINE, PVOID, PIO_STATUS_BLOCK, ULONG, PVOID, ULONG, PVOID, ULONG)
inline QFunctionPointer resolveNtdllSymbol(QLibrary *ntLibrary, const char *symbolName)
{
QFunctionPointer symbolFunctionPointer = ntLibrary->resolve(symbolName);
if (!symbolFunctionPointer)
qWarning("Failed to resolve the symbol: %s", symbolName);
return symbolFunctionPointer;
}
inline bool resolveNtdllSymbols(QLibrary *ntLibrary)
{
if (!ntLibrary->isLoaded()) {
ntLibrary->setFileName(QStringLiteral("ntdll"));
if (!ntLibrary->load()) {
qWarning("Failed to load the library: %s", qPrintable(ntLibrary->fileName()));
return false;
}
}
RESOLVE_SYMBOL(RtlNtStatusToDosError)
RESOLVE_SYMBOL(NtDeviceIoControlFile)
return true;
}
#endif // QTNTDLL_P_H
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