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mirror of https://github.com/veracrypt/VeraCrypt.git synced 2025-11-11 02:58:02 -06:00

Windows: query extra host drive information using IOCTL_STORAGE_QUERY_PROPERTY (StorageAdapterProperty) in both driver and user mode applications.

This commit is contained in:
Mounir IDRASSI
2017-05-23 12:23:07 +02:00
parent a117f04068
commit cda40547fe
4 changed files with 136 additions and 17 deletions

View File

@@ -172,6 +172,9 @@ typedef struct
BOOL bIsNTFS; // output only
BOOL bDriverSetLabel;
BOOL bCachePim;
ULONG MaximumTransferLength;
ULONG MaximumPhysicalPages;
ULONG AlignmentMask;
} MOUNT_STRUCT;
typedef struct

View File

@@ -7228,13 +7228,84 @@ void BroadcastDeviceChange (WPARAM message, int nDosDriveNo, DWORD driveMap)
IgnoreWmDeviceChange = FALSE;
}
BOOL GetPhysicalDriveAlignment(UINT nDriveNumber, STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR* pDesc)
static BOOL GetDeviceStorageProperty (HANDLE hDevice, STORAGE_PROPERTY_ID propertyId, DWORD dwDescSize, void* pDesc)
{
DWORD dwRet = NO_ERROR;
if (!pDesc)
return FALSE;
ZeroMemory (pDesc, dwDescSize);
// Set the input data structure
STORAGE_PROPERTY_QUERY storagePropertyQuery;
ZeroMemory(&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY));
storagePropertyQuery.PropertyId = propertyId;
storagePropertyQuery.QueryType = PropertyStandardQuery;
// Get the necessary output buffer size
STORAGE_DESCRIPTOR_HEADER descHeader = {0};
DWORD dwBytesReturned = 0;
BOOL bRet = ::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
&descHeader, sizeof(STORAGE_DESCRIPTOR_HEADER),
&dwBytesReturned, NULL);
if (bRet)
{
if (dwBytesReturned == sizeof(STORAGE_DESCRIPTOR_HEADER))
{
unsigned char* outputBuffer = (unsigned char*) TCalloc (descHeader.Size);
bRet = ::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
outputBuffer, descHeader.Size,
&dwBytesReturned, NULL);
if (bRet)
{
if (dwBytesReturned >= dwDescSize)
{
memcpy (pDesc, outputBuffer, dwDescSize);
((STORAGE_DESCRIPTOR_HEADER*)pDesc)->Version = dwDescSize;
((STORAGE_DESCRIPTOR_HEADER*)pDesc)->Size = dwDescSize;
}
else
{
bRet = FALSE;
dwRet = ERROR_UNHANDLED_ERROR;
}
}
else
dwRet = ::GetLastError();
TCfree (outputBuffer);
}
else
{
bRet = FALSE;
dwRet = ERROR_UNHANDLED_ERROR;
}
}
else
dwRet = ::GetLastError();
::CloseHandle(hDevice);
if (!bRet)
{
SetLastError (dwRet);
return FALSE;
}
else
return TRUE;
}
BOOL GetPhysicalDriveStorageInformation(UINT nDriveNumber, STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR* pAlignmentDesc, STORAGE_ADAPTER_DESCRIPTOR* pAdapterDesc)
{
DWORD dwRet = NO_ERROR;
if (!pAlignmentDesc || pAdapterDesc)
{
SetLastError (ERROR_INVALID_PARAMETER);
return FALSE;
}
// Format physical drive path (may be '\\.\PhysicalDrive0', '\\.\PhysicalDrive1' and so on).
TCHAR strDrivePath[512];
StringCbPrintf(strDrivePath, sizeof(strDrivePath), _T("\\\\.\\PhysicalDrive%u"), nDriveNumber);
@@ -7246,18 +7317,8 @@ BOOL GetPhysicalDriveAlignment(UINT nDriveNumber, STORAGE_ACCESS_ALIGNMENT_DESCR
if(INVALID_HANDLE_VALUE == hDevice)
return FALSE;
// Set the input data structure
STORAGE_PROPERTY_QUERY storagePropertyQuery;
ZeroMemory(&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY));
storagePropertyQuery.PropertyId = StorageAccessAlignmentProperty;
storagePropertyQuery.QueryType = PropertyStandardQuery;
// Get the necessary output buffer size
DWORD dwBytesReturned = 0;
BOOL bRet = ::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
pDesc, sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR),
&dwBytesReturned, NULL);
BOOL bRet = (GetDeviceStorageProperty (hDevice, StorageAccessAlignmentProperty, sizeof (STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR), pAlignmentDesc)
|| GetDeviceStorageProperty (hDevice, StorageAdapterProperty, sizeof (STORAGE_ADAPTER_DESCRIPTOR), pAdapterDesc))? TRUE : FALSE;
dwRet = ::GetLastError();
::CloseHandle(hDevice);
@@ -7621,6 +7682,13 @@ retry:
if (!bDevice)
{
// put default values
mount.BytesPerSector = 512;
mount.BytesPerPhysicalSector = 512;
mount.MaximumTransferLength = 65536;
mount.MaximumPhysicalPages = 17;
mount.AlignmentMask = 0;
// UNC path
if (path.find (L"\\\\") == 0)
{
@@ -7655,11 +7723,23 @@ retry:
{
if (extents.NumberOfDiskExtents > 0)
{
STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR desc;
if (GetPhysicalDriveAlignment (extents.Extents[0].DiskNumber, &desc))
STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR accessDesc;
STORAGE_ADAPTER_DESCRIPTOR adapterDesc;
if (GetPhysicalDriveStorageInformation (extents.Extents[0].DiskNumber, &accessDesc, &adapterDesc))
{
mount.BytesPerSector = desc.BytesPerLogicalSector;
mount.BytesPerPhysicalSector = desc.BytesPerPhysicalSector;
if (accessDesc.Size >= sizeof (STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR))
{
mount.BytesPerSector = accessDesc.BytesPerLogicalSector;
mount.BytesPerPhysicalSector = accessDesc.BytesPerPhysicalSector;
}
if (adapterDesc.Size >= sizeof (STORAGE_ADAPTER_DESCRIPTOR))
{
mount.MaximumTransferLength = adapterDesc.MaximumTransferLength;
mount.MaximumPhysicalPages = adapterDesc.MaximumPhysicalPages;
mount.AlignmentMask = adapterDesc.AlignmentMask;
}
}
}
}

View File

@@ -63,6 +63,9 @@ typedef struct EXTENSION
uint32 HostBytesPerSector;
uint32 HostBytesPerPhysicalSector;
ULONG HostMaximumTransferLength;
ULONG HostMaximumPhysicalPages;
ULONG HostAlignmentMask;
KEVENT keVolumeEvent; /* Event structure used when setting up a device */

View File

@@ -63,6 +63,11 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
Extension->hDeviceFile = NULL;
Extension->bTimeStampValid = FALSE;
/* default value for storage alignment */
Extension->HostMaximumTransferLength = 65536;
Extension->HostMaximumPhysicalPages = 17;
Extension->HostAlignmentMask = 0;
RtlInitUnicodeString (&FullFileName, pwszMountVolume);
InitializeObjectAttributes (&oaFileAttributes, &FullFileName, OBJ_CASE_INSENSITIVE | (forceAccessCheck ? OBJ_FORCE_ACCESS_CHECK : 0) | OBJ_KERNEL_HANDLE, NULL, NULL);
KeInitializeEvent (&Extension->keVolumeEvent, NotificationEvent, FALSE);
@@ -129,6 +134,31 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
TCfree (outputBuffer);
}
storagePropertyQuery.PropertyId = StorageAdapterProperty;
if (NT_SUCCESS (TCSendHostDeviceIoControlRequestEx (DeviceObject, Extension, IOCTL_STORAGE_QUERY_PROPERTY,
(char*) &storagePropertyQuery, sizeof(storagePropertyQuery),
(char *) &storageHeader, sizeof (storageHeader))))
{
byte* outputBuffer = TCalloc (storageHeader.Size);
if (!outputBuffer)
{
ntStatus = STATUS_INSUFFICIENT_RESOURCES;
goto error;
}
if (NT_SUCCESS (TCSendHostDeviceIoControlRequestEx (DeviceObject, Extension, IOCTL_STORAGE_QUERY_PROPERTY,
(char*) &storagePropertyQuery, sizeof(storagePropertyQuery),
outputBuffer, storageHeader.Size)))
{
PSTORAGE_ADAPTER_DESCRIPTOR pStorageDescriptor = (PSTORAGE_ADAPTER_DESCRIPTOR) outputBuffer;
Extension->HostMaximumTransferLength = pStorageDescriptor->MaximumTransferLength;
Extension->HostMaximumPhysicalPages = pStorageDescriptor->MaximumPhysicalPages;
Extension->HostAlignmentMask = pStorageDescriptor->AlignmentMask;
}
TCfree (outputBuffer);
}
}
// Drive geometry is used only when IOCTL_DISK_GET_PARTITION_INFO fails
@@ -179,6 +209,9 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
Extension->HostBytesPerSector = mount->BytesPerSector;
Extension->HostBytesPerPhysicalSector = mount->BytesPerPhysicalSector;
Extension->HostMaximumTransferLength = mount->MaximumTransferLength;
Extension->HostMaximumPhysicalPages = mount->MaximumPhysicalPages;
Extension->HostAlignmentMask = mount->AlignmentMask;
if (Extension->HostBytesPerSector != TC_SECTOR_SIZE_FILE_HOSTED_VOLUME)
disableBuffering = FALSE;