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/* $Id: HostDriveImpl.cpp $ */
/** @file
* VirtualBox Main - IHostDrive implementation, VBoxSVC.
*/
/*
* Copyright (C) 2013-2022 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>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#define LOG_GROUP LOG_GROUP_MAIN_HOSTDRIVE
#include "Global.h"
#include "HostDriveImpl.h"
#include "HostDrivePartitionImpl.h"
#include "LoggingNew.h"
#include "VirtualBoxImpl.h"
#include <iprt/dvm.h>
#include <iprt/err.h>
#include <iprt/file.h>
#include <iprt/path.h>
#include <iprt/vfs.h>
#include <VBox/com/Guid.h>
/*
* HostDrive implementation.
*/
DEFINE_EMPTY_CTOR_DTOR(HostDrive)
HRESULT HostDrive::FinalConstruct()
{
return BaseFinalConstruct();
}
void HostDrive::FinalRelease()
{
uninit();
BaseFinalRelease();
}
/**
* Initializes the instance.
*/
HRESULT HostDrive::initFromPathAndModel(const com::Utf8Str &drivePath, const com::Utf8Str &driveModel)
{
LogFlowThisFunc(("\n"));
AssertReturn(!drivePath.isEmpty(), E_INVALIDARG);
/* Enclose the state transition NotReady->InInit->Ready */
AutoInitSpan autoInitSpan(this);
AssertReturn(autoInitSpan.isOk(), E_FAIL);
m.partitioningType = PartitioningType_MBR;
m.drivePath = drivePath;
m.model = driveModel;
m.partitions.clear();
/*
* Try open the drive so we can extract futher details,
* like the size, sector size and partitions.
*/
HRESULT hrc = E_FAIL;
RTFILE hRawFile = NIL_RTFILE;
int vrc = RTFileOpen(&hRawFile, drivePath.c_str(), RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);
if (RT_SUCCESS(vrc))
{
vrc = RTFileQuerySize(hRawFile, &m.cbDisk);
int vrc2 = RTFileQuerySectorSize(hRawFile, &m.cbSector);
if (RT_FAILURE(vrc2))
vrc = vrc2;
if (RT_SUCCESS(vrc))
{
/*
* Hand it to DVM.
*/
RTVFSFILE hVfsFile = NIL_RTVFSFILE;
vrc = RTVfsFileFromRTFile(hRawFile, RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_NONE /*fOpen*/,
true /*fLeaveOpen*/, &hVfsFile);
if (RT_SUCCESS(vrc))
{
RTDVM hVolMgr = NIL_RTDVM;
vrc = RTDvmCreate(&hVolMgr, hVfsFile, m.cbSector, 0 /*fFlags*/);
if (RT_SUCCESS(vrc))
{
vrc = RTDvmMapOpen(hVolMgr);
if (RT_SUCCESS(vrc))
{
hrc = S_OK;
/*
* Get details.
*/
switch (RTDvmMapGetFormatType(hVolMgr))
{
case RTDVMFORMATTYPE_GPT:
m.partitioningType = PartitioningType_GPT;
break;
case RTDVMFORMATTYPE_MBR:
m.partitioningType = PartitioningType_MBR;
break;
case RTDVMFORMATTYPE_BSD_LABEL:
AssertMsgFailed(("TODO\n"));
break;
default:
AssertFailed();
}
RTUUID Uuid = RTUUID_INITIALIZE_NULL;
if (RT_SUCCESS(RTDvmMapQueryDiskUuid(hVolMgr, &Uuid)))
m.uuid = Uuid;
/*
* Enumerate volumes and tuck them into the partitions list..
*/
uint32_t const cVolumes = RTDvmMapGetValidVolumes(hVolMgr);
RTDVMVOLUME hVol = NIL_RTDVMVOLUME;
for (uint32_t i = 0; i < cVolumes; i++)
{
/* Enumeration cruft: */
RTDVMVOLUME hVolNext = NIL_RTDVMVOLUME;
if (i == 0)
vrc = RTDvmMapQueryFirstVolume(hVolMgr, &hVolNext);
else
vrc = RTDvmMapQueryNextVolume(hVolMgr, hVol, &hVolNext);
AssertRCBreakStmt(vrc, hrc = Global::vboxStatusCodeToCOM(vrc));
uint32_t cRefs = RTDvmVolumeRelease(hVol);
Assert(cRefs != UINT32_MAX); RT_NOREF(cRefs);
hVol = hVolNext;
/* Instantiate a new partition object and add it to the list: */
ComObjPtr<HostDrivePartition> ptrHostPartition;
hrc = ptrHostPartition.createObject();
if (SUCCEEDED(hrc))
hrc = ptrHostPartition->initFromDvmVol(hVol);
if (SUCCEEDED(hrc))
try
{
m.partitions.push_back(ptrHostPartition);
}
catch (std::bad_alloc &)
{
AssertFailedBreakStmt(hrc = E_OUTOFMEMORY);
}
}
RTDvmVolumeRelease(hVol);
}
else
hrc = Global::vboxStatusCodeToCOM(vrc);
RTDvmRelease(hVolMgr);
}
else
hrc = Global::vboxStatusCodeToCOM(vrc);
RTVfsFileRelease(hVfsFile);
}
else
hrc = Global::vboxStatusCodeToCOM(vrc);
}
else /* VERR_IO_NOT_READ / STATUS_NO_MEDIA_IN_DEVICE is likely for card readers on windows. */
hrc = Global::vboxStatusCodeToCOM(vrc);
RTFileClose(hRawFile);
}
else
{
/*
* We don't use the Global::vboxStatusCodeToCOM(vrc) here
* because RTFileOpen can return some error which causes
* the assertion and breaks original idea of returning
* the object in the limited state.
*/
if ( vrc == VERR_RESOURCE_BUSY
|| vrc == VERR_ACCESS_DENIED)
hrc = E_ACCESSDENIED;
else
hrc = VBOX_E_IPRT_ERROR;
}
/* Confirm a successful initialization */
if (SUCCEEDED(hrc))
autoInitSpan.setSucceeded();
else
autoInitSpan.setLimited(hrc);
return S_OK;
}
/**
* Uninitializes the instance.
* Called either from FinalRelease() or by the parent when it gets destroyed.
*/
void HostDrive::uninit()
{
LogFlowThisFunc(("\n"));
/* Enclose the state transition Ready->InUninit->NotReady */
AutoUninitSpan autoUninitSpan(this);
if (autoUninitSpan.uninitDone())
return;
m.drivePath.setNull();
m.partitions.clear();
}
/*********************************************************************************************************************************
* IHostDrive properties *
*********************************************************************************************************************************/
HRESULT HostDrive::getPartitioningType(PartitioningType_T *aPartitioningType)
{
*aPartitioningType = m.partitioningType;
return S_OK;
}
HRESULT HostDrive::getDrivePath(com::Utf8Str &aDrivePath)
{
aDrivePath = m.drivePath;
return S_OK;
}
HRESULT HostDrive::getUuid(com::Guid &aUuid)
{
aUuid = m.uuid;
return S_OK;
}
HRESULT HostDrive::getSectorSize(ULONG *aSectorSize)
{
*aSectorSize = m.cbSector;
return S_OK;
}
HRESULT HostDrive::getSize(LONG64 *aSize)
{
*aSize = (LONG64)m.cbDisk;
if (*aSize < 0)
*aSize = INT64_MAX;
return S_OK;
}
HRESULT HostDrive::getModel(com::Utf8Str &aModel)
{
return aModel.assignEx(m.model);
}
HRESULT HostDrive::getPartitions(std::vector<ComPtr<IHostDrivePartition> > &aPartitions)
{
aPartitions = m.partitions;
return S_OK;
}
/* vi: set tabstop=4 shiftwidth=4 expandtab: */
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