diff options
Diffstat (limited to 'src/VBox/HostDrivers/Support/win/SUPR0IdcClient-win.c')
| -rw-r--r-- | src/VBox/HostDrivers/Support/win/SUPR0IdcClient-win.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/Support/win/SUPR0IdcClient-win.c b/src/VBox/HostDrivers/Support/win/SUPR0IdcClient-win.c new file mode 100644 index 00000000..73fe259d --- /dev/null +++ b/src/VBox/HostDrivers/Support/win/SUPR0IdcClient-win.c @@ -0,0 +1,167 @@ +/* $Id: SUPR0IdcClient-win.c $ */ +/** @file + * VirtualBox Support Driver - IDC Client Lib, Windows Specific Code. + */ + +/* + * Copyright (C) 2008-2023 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 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "../SUPR0IdcClientInternal.h" +#include <iprt/errcore.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** NT Device name. */ +#define DEVICE_NAME_NT L"\\Device\\VBoxDrv" + + +/** + * Internal I/O Control call worker. + * + * @returns VBox status code. + * @param pDeviceObject The device object to call. + * @param pFileObject The file object for the connection. + * @param uReq The request. + * @param pReq The request packet. + */ +static int supR0IdcNtCallInternal(PDEVICE_OBJECT pDeviceObject, PFILE_OBJECT pFileObject, uint32_t uReq, PSUPDRVIDCREQHDR pReq) +{ + int rc; + IO_STATUS_BLOCK IoStatusBlock; + KEVENT Event; + PIRP pIrp; + NTSTATUS rcNt; + + /* + * Build the request. + */ + KeInitializeEvent(&Event, NotificationEvent, FALSE); + pIrp = IoBuildDeviceIoControlRequest(uReq, /* IoControlCode */ + pDeviceObject, + pReq, /* InputBuffer */ + pReq->cb, /* InputBufferLength */ + pReq, /* OutputBuffer */ + pReq->cb, /* OutputBufferLength */ + TRUE, /* InternalDeviceIoControl (=> IRP_MJ_INTERNAL_DEVICE_CONTROL) */ + &Event, /* Event */ + &IoStatusBlock); /* IoStatusBlock */ + if (pIrp) + { + IoGetNextIrpStackLocation(pIrp)->FileObject = pFileObject; + + /* + * Call the driver, wait for an async request to complete (should never happen). + */ + rcNt = IoCallDriver(pDeviceObject, pIrp); + if (rcNt == STATUS_PENDING) + { + rcNt = KeWaitForSingleObject(&Event, /* Object */ + Executive, /* WaitReason */ + KernelMode, /* WaitMode */ + FALSE, /* Alertable */ + NULL); /* TimeOut */ + rcNt = IoStatusBlock.Status; + } + if (NT_SUCCESS(rcNt)) + rc = pReq->rc; + else + rc = RTErrConvertFromNtStatus(rcNt); + } + else + rc = VERR_NO_MEMORY; + return rc; +} + + +int VBOXCALL supR0IdcNativeOpen(PSUPDRVIDCHANDLE pHandle, PSUPDRVIDCREQCONNECT pReq) +{ + PDEVICE_OBJECT pDeviceObject = NULL; + PFILE_OBJECT pFileObject = NULL; + UNICODE_STRING wszDeviceName; + NTSTATUS rcNt; + int rc; + + /* + * Get the device object pointer. + */ + RtlInitUnicodeString(&wszDeviceName, DEVICE_NAME_NT); + rcNt = IoGetDeviceObjectPointer(&wszDeviceName, FILE_ALL_ACCESS, &pFileObject, &pDeviceObject); + if (NT_SUCCESS(rcNt)) + { + /* + * Make the connection call. + */ + rc = supR0IdcNtCallInternal(pDeviceObject, pFileObject, SUPDRV_IDC_REQ_CONNECT, &pReq->Hdr); + if (RT_SUCCESS(rc)) + { + pHandle->s.pDeviceObject = pDeviceObject; + pHandle->s.pFileObject = pFileObject; + return rc; + } + + /* only the file object. */ + ObDereferenceObject(pFileObject); + } + else + rc = RTErrConvertFromNtStatus(rcNt); + + pHandle->s.pDeviceObject = NULL; + pHandle->s.pFileObject = NULL; + return rc; +} + + +int VBOXCALL supR0IdcNativeClose(PSUPDRVIDCHANDLE pHandle, PSUPDRVIDCREQHDR pReq) +{ + PFILE_OBJECT pFileObject = pHandle->s.pFileObject; + int rc = supR0IdcNtCallInternal(pHandle->s.pDeviceObject, pFileObject, SUPDRV_IDC_REQ_DISCONNECT, pReq); + if (RT_SUCCESS(rc)) + { + pHandle->s.pDeviceObject = NULL; + pHandle->s.pFileObject = NULL; + ObDereferenceObject(pFileObject); + } + + return rc; +} + + +int VBOXCALL supR0IdcNativeCall(PSUPDRVIDCHANDLE pHandle, uint32_t uReq, PSUPDRVIDCREQHDR pReq) +{ + return supR0IdcNtCallInternal(pHandle->s.pDeviceObject, pHandle->s.pFileObject, uReq, pReq); +} + |