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/* $Id: VBoxUsbHook.h $ */
/** @file
* Driver Dispatch Table Hooking API impl
*/
/*
* Copyright (C) 2011-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef VBOX_INCLUDED_SRC_VBoxUSB_win_mon_VBoxUsbHook_h
#define VBOX_INCLUDED_SRC_VBoxUSB_win_mon_VBoxUsbHook_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include "VBoxUsbMon.h"
typedef struct VBOXUSBHOOK_ENTRY
{
LIST_ENTRY RequestList;
KSPIN_LOCK Lock;
BOOLEAN fIsInstalled;
PDRIVER_DISPATCH pfnOldHandler;
VBOXDRVTOOL_REF HookRef;
PDRIVER_OBJECT pDrvObj;
UCHAR iMjFunction;
PDRIVER_DISPATCH pfnHook;
} VBOXUSBHOOK_ENTRY, *PVBOXUSBHOOK_ENTRY;
typedef struct VBOXUSBHOOK_REQUEST
{
LIST_ENTRY ListEntry;
PVBOXUSBHOOK_ENTRY pHook;
IO_STACK_LOCATION OldLocation;
PDEVICE_OBJECT pDevObj;
PIRP pIrp;
BOOLEAN bCompletionStopped;
} VBOXUSBHOOK_REQUEST, *PVBOXUSBHOOK_REQUEST;
DECLINLINE(BOOLEAN) VBoxUsbHookRetain(PVBOXUSBHOOK_ENTRY pHook)
{
KIRQL Irql;
KeAcquireSpinLock(&pHook->Lock, &Irql);
if (!pHook->fIsInstalled)
{
KeReleaseSpinLock(&pHook->Lock, Irql);
return FALSE;
}
VBoxDrvToolRefRetain(&pHook->HookRef);
KeReleaseSpinLock(&pHook->Lock, Irql);
return TRUE;
}
DECLINLINE(VOID) VBoxUsbHookRelease(PVBOXUSBHOOK_ENTRY pHook)
{
VBoxDrvToolRefRelease(&pHook->HookRef);
}
VOID VBoxUsbHookInit(PVBOXUSBHOOK_ENTRY pHook, PDRIVER_OBJECT pDrvObj, UCHAR iMjFunction, PDRIVER_DISPATCH pfnHook);
NTSTATUS VBoxUsbHookInstall(PVBOXUSBHOOK_ENTRY pHook);
NTSTATUS VBoxUsbHookUninstall(PVBOXUSBHOOK_ENTRY pHook);
BOOLEAN VBoxUsbHookIsInstalled(PVBOXUSBHOOK_ENTRY pHook);
NTSTATUS VBoxUsbHookRequestPassDownHookCompletion(PVBOXUSBHOOK_ENTRY pHook, PDEVICE_OBJECT pDevObj, PIRP pIrp, PIO_COMPLETION_ROUTINE pfnCompletion, PVBOXUSBHOOK_REQUEST pRequest);
NTSTATUS VBoxUsbHookRequestPassDownHookSkip(PVBOXUSBHOOK_ENTRY pHook, PDEVICE_OBJECT pDevObj, PIRP pIrp);
NTSTATUS VBoxUsbHookRequestMoreProcessingRequired(PVBOXUSBHOOK_ENTRY pHook, PDEVICE_OBJECT pDevObj, PIRP pIrp, PVBOXUSBHOOK_REQUEST pRequest);
NTSTATUS VBoxUsbHookRequestComplete(PVBOXUSBHOOK_ENTRY pHook, PDEVICE_OBJECT pDevObj, PIRP pIrp, PVBOXUSBHOOK_REQUEST pRequest);
VOID VBoxUsbHookVerifyCompletion(PVBOXUSBHOOK_ENTRY pHook, PVBOXUSBHOOK_REQUEST pRequest, PIRP pIrp);
#endif /* !VBOX_INCLUDED_SRC_VBoxUSB_win_mon_VBoxUsbHook_h */
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