NTSTATUS
DokanCreateDiskDevice(__in PDRIVER_OBJECT DriverObject, __in ULONG MountId,
__in PWCHAR MountPoint, __in PWCHAR UNCName,
__in PWCHAR BaseGuid, __in PDOKAN_GLOBAL DokanGlobal,
__in DEVICE_TYPE DeviceType,
__in ULONG DeviceCharacteristics,
__in BOOLEAN UseMountManager, __out PDokanDCB *Dcb) {
WCHAR diskDeviceNameBuf[MAXIMUM_FILENAME_LENGTH];
WCHAR symbolicLinkNameBuf[MAXIMUM_FILENAME_LENGTH];
WCHAR mountPointBuf[MAXIMUM_FILENAME_LENGTH];
PDEVICE_OBJECT diskDeviceObject;
PDEVICE_OBJECT volDeviceObject;
PDokanDCB dcb;
PDokanVCB vcb;
UNICODE_STRING diskDeviceName;
NTSTATUS status;
BOOLEAN isNetworkFileSystem = (DeviceType == FILE_DEVICE_NETWORK_FILE_SYSTEM);
DOKAN_CONTROL dokanControl;
// make DeviceName and SymboliLink
if (isNetworkFileSystem) {
#ifdef DOKAN_NET_PROVIDER
RtlStringCchCopyW(diskDeviceNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_NET_DEVICE_NAME);
RtlStringCchCopyW(symbolicLinkNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_NET_SYMBOLIC_LINK_NAME);
#else
RtlStringCchCopyW(diskDeviceNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_NET_DEVICE_NAME);
RtlStringCchCatW(diskDeviceNameBuf, MAXIMUM_FILENAME_LENGTH, BaseGuid);
RtlStringCchCopyW(symbolicLinkNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_NET_SYMBOLIC_LINK_NAME);
RtlStringCchCatW(symbolicLinkNameBuf, MAXIMUM_FILENAME_LENGTH, BaseGuid);
#endif
} else {
RtlStringCchCopyW(diskDeviceNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_DISK_DEVICE_NAME);
RtlStringCchCatW(diskDeviceNameBuf, MAXIMUM_FILENAME_LENGTH, BaseGuid);
RtlStringCchCopyW(symbolicLinkNameBuf, MAXIMUM_FILENAME_LENGTH,
DOKAN_SYMBOLIC_LINK_NAME);
RtlStringCchCatW(symbolicLinkNameBuf, MAXIMUM_FILENAME_LENGTH, BaseGuid);
}
RtlInitUnicodeString(&diskDeviceName, diskDeviceNameBuf);
//
// Create DeviceObject for the Disk Device
//
if (!isNetworkFileSystem) {
status =
IoCreateDeviceSecure(DriverObject, // DriverObject
sizeof(DokanDCB), // DeviceExtensionSize
&diskDeviceName, // DeviceName
FILE_DEVICE_DISK, // DeviceType
DeviceCharacteristics, // DeviceCharacteristics
FALSE, // Not Exclusive
&sddl, // Default SDDL String
NULL, // Device Class GUID
&diskDeviceObject); // DeviceObject
} else {
status = IoCreateDevice(DriverObject, // DriverObject
sizeof(DokanDCB), // DeviceExtensionSize
NULL, // DeviceName
FILE_DEVICE_UNKNOWN, // DeviceType
DeviceCharacteristics, // DeviceCharacteristics
FALSE, // Not Exclusive
&diskDeviceObject); // DeviceObject
}
if (!NT_SUCCESS(status)) {
DDbgPrint(" %s failed: 0x%x\n",
isNetworkFileSystem ? "IoCreateDevice(FILE_DEVICE_UNKNOWN)"
: "IoCreateDeviceSecure(FILE_DEVICE_DISK)",
status);
return status;
}
//
// Initialize the device extension.
//
dcb = diskDeviceObject->DeviceExtension;
*Dcb = dcb;
dcb->DeviceObject = diskDeviceObject;
dcb->Global = DokanGlobal;
dcb->Identifier.Type = DCB;
dcb->Identifier.Size = sizeof(DokanDCB);
dcb->MountId = MountId;
dcb->DeviceType = FILE_DEVICE_DISK;
dcb->DeviceCharacteristics = DeviceCharacteristics;
KeInitializeEvent(&dcb->KillEvent, NotificationEvent, FALSE);
//
// Establish user-buffer access method.
//
diskDeviceObject->Flags |= DO_DIRECT_IO;
// initialize Event and Event queue
DokanInitIrpList(&dcb->PendingIrp);
DokanInitIrpList(&dcb->PendingEvent);
DokanInitIrpList(&dcb->NotifyEvent);
KeInitializeEvent(&dcb->ReleaseEvent, NotificationEvent, FALSE);
// "0" means not mounted
dcb->Mounted = 0;
ExInitializeResourceLite(&dcb->Resource);
dcb->CacheManagerNoOpCallbacks.AcquireForLazyWrite = &DokanNoOpAcquire;
dcb->CacheManagerNoOpCallbacks.ReleaseFromLazyWrite = &DokanNoOpRelease;
dcb->CacheManagerNoOpCallbacks.AcquireForReadAhead = &DokanNoOpAcquire;
dcb->CacheManagerNoOpCallbacks.ReleaseFromReadAhead = &DokanNoOpRelease;
dcb->UseMountManager = UseMountManager;
if (wcscmp(MountPoint, L"") != 0) {
RtlStringCchCopyW(mountPointBuf, MAXIMUM_FILENAME_LENGTH,
L"\\DosDevices\\");
if (wcslen(MountPoint) < 4) {
mountPointBuf[12] = towupper(MountPoint[0]);
mountPointBuf[13] = L':';
mountPointBuf[14] = L'\0';
if (isNetworkFileSystem) {
dcb->UseMountManager = FALSE;
}
} else {
dcb->UseMountManager = FALSE;
RtlStringCchCatW(mountPointBuf, MAXIMUM_FILENAME_LENGTH, MountPoint);
}
} else {
RtlStringCchCopyW(mountPointBuf, MAXIMUM_FILENAME_LENGTH, L"");
}
dcb->DiskDeviceName = DokanAllocateUnicodeString(diskDeviceNameBuf);
dcb->SymbolicLinkName = DokanAllocateUnicodeString(symbolicLinkNameBuf);
dcb->MountPoint = DokanAllocateUnicodeString(mountPointBuf);
if (UNCName != NULL) {
dcb->UNCName = DokanAllocateUnicodeString(UNCName);
}
if (dcb->DiskDeviceName == NULL || dcb->SymbolicLinkName == NULL ||
dcb->MountPoint == NULL || (dcb->UNCName == NULL && UNCName != NULL)) {
DDbgPrint(" Failed to allocate memory for device naming");
FreeDcbNames(dcb);
ExDeleteResourceLite(&dcb->Resource);
IoDeleteDevice(diskDeviceObject);
return STATUS_INSUFFICIENT_RESOURCES;
}
DDbgPrint("DiskDeviceName: %wZ - SymbolicLinkName: %wZ - MountPoint: %wZ\n",
dcb->DiskDeviceName, dcb->SymbolicLinkName, dcb->MountPoint);
DDbgPrint(" IoCreateDevice DeviceType: %d\n", DeviceType);
// Directly create volume device and init vcb here because it has strong
// dependency with fs/disk
// Otherwise we would have done this work when mounting the volume
if (!isNetworkFileSystem) {
status = IoCreateDevice(DriverObject, // DriverObject
sizeof(DokanVCB), // DeviceExtensionSize
NULL, // DeviceName
DeviceType, // DeviceType
DeviceCharacteristics, // DeviceCharacteristics
FALSE, // Not Exclusive
&volDeviceObject); // DeviceObject
} else {
status =
IoCreateDeviceSecure(DriverObject, // DriverObject
sizeof(DokanVCB), // DeviceExtensionSize
&diskDeviceName, // DeviceName
DeviceType, // DeviceType
DeviceCharacteristics, // DeviceCharacteristics
FALSE, // Not Exclusive
&sddl, // Default SDDL String
NULL, // Device Class GUID
&volDeviceObject); // DeviceObject
}
if (!NT_SUCCESS(status)) {
DDbgPrint(" IoCreateDevice failed: 0x%x\n", status);
ExDeleteResourceLite(&dcb->Resource);
IoDeleteDevice(diskDeviceObject);
FreeDcbNames(dcb);
return status;
}
vcb = volDeviceObject->DeviceExtension;
vcb->Identifier.Type = VCB;
vcb->Identifier.Size = sizeof(DokanVCB);
vcb->DeviceObject = volDeviceObject;
vcb->Dcb = dcb;
dcb->Vcb = vcb;
InitializeListHead(&vcb->NextFCB);
InitializeListHead(&vcb->DirNotifyList);
FsRtlNotifyInitializeSync(&vcb->NotifySync);
ExInitializeFastMutex(&vcb->AdvancedFCBHeaderMutex);
#if _WIN32_WINNT >= 0x0501
FsRtlSetupAdvancedHeader(&vcb->VolumeFileHeader,
&vcb->AdvancedFCBHeaderMutex);
#else
if (DokanFsRtlTeardownPerStreamContexts) {
FsRtlSetupAdvancedHeader(&vcb->VolumeFileHeader,
&vcb->AdvancedFCBHeaderMutex);
}
#endif
//
// Create a symbolic link for userapp to interact with the driver.
//
status = IoCreateSymbolicLink(dcb->SymbolicLinkName, dcb->DiskDeviceName);
if (!NT_SUCCESS(status)) {
ExDeleteResourceLite(&dcb->Resource);
IoDeleteDevice(diskDeviceObject);
FreeDcbNames(dcb);
DDbgPrint(" IoCreateSymbolicLink returned 0x%x\n", status);
return status;
}
DDbgPrint("SymbolicLink: %wZ -> %wZ created\n", dcb->SymbolicLinkName,
dcb->DiskDeviceName);
//
// Establish user-buffer access method.
//
volDeviceObject->Flags |= DO_DIRECT_IO;
DokanInitVpb(diskDeviceObject->Vpb, diskDeviceObject, volDeviceObject);
// Mark devices as initialized
diskDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
volDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
ObReferenceObject(volDeviceObject);
ObReferenceObject(diskDeviceObject);
// DokanRegisterMountedDeviceInterface(diskDeviceObject, dcb);
// Save to the global mounted list
RtlZeroMemory(&dokanControl, sizeof(dokanControl));
RtlStringCchCopyW(dokanControl.DeviceName,
sizeof(dokanControl.DeviceName) / sizeof(WCHAR),
diskDeviceNameBuf);
RtlStringCchCopyW(dokanControl.MountPoint,
sizeof(dokanControl.MountPoint) / sizeof(WCHAR),
mountPointBuf);
dokanControl.Type = DeviceType;
dokanControl.DeviceObject = volDeviceObject;
InsertMountEntry(DokanGlobal, &dokanControl);
dcb->Mounted = 1;
if (dcb->UseMountManager) {
status = DokanSendVolumeArrivalNotification(dcb->DiskDeviceName);
if (!NT_SUCCESS(status)) {
DDbgPrint(" DokanSendVolumeArrivalNotification failed: 0x%x\n", status);
if (diskDeviceObject->Vpb) {
diskDeviceObject->Vpb->DeviceObject = NULL;
diskDeviceObject->Vpb->RealDevice = NULL;
diskDeviceObject->Vpb->Flags = 0;
}
ExDeleteResourceLite(&dcb->Resource);
IoDeleteDevice(diskDeviceObject);
FreeDcbNames(dcb);
return status;
}
}
DokanCreateMountPoint(dcb);
if (isNetworkFileSystem) {
// Run FsRtlRegisterUncProvider in System thread.
HANDLE handle;
PKTHREAD thread;
OBJECT_ATTRIBUTES objectAttribs;
InitializeObjectAttributes(&objectAttribs, NULL, OBJ_KERNEL_HANDLE, NULL,
NULL);
status = PsCreateSystemThread(
&handle, THREAD_ALL_ACCESS, &objectAttribs, NULL, NULL,
(PKSTART_ROUTINE)DokanRegisterUncProvider, dcb);
if (!NT_SUCCESS(status)) {
DDbgPrint("PsCreateSystemThread failed: 0x%X\n", status);
} else {
ObReferenceObjectByHandle(handle, THREAD_ALL_ACCESS, NULL, KernelMode,
&thread, NULL);
ZwClose(handle);
KeWaitForSingleObject(thread, Executive, KernelMode, FALSE, NULL);
ObDereferenceObject(thread);
}
}
// DokanRegisterDeviceInterface(DriverObject, diskDeviceObject, dcb);
return STATUS_SUCCESS;
}
static VOID DokanControl(PDOKAN_CONTROL Control)
{
PMOUNT_ENTRY mountEntry;
Control->Status = DOKAN_CONTROL_FAIL;
switch (Control->Type)
{
case DOKAN_CONTROL_MOUNT:
DbgPrintW(L"DokanControl Mount\n");
if (DokanControlMount(Control->MountPoint, Control->DeviceName)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
InsertMountEntry(Control);
} else {
Control->Status = DOKAN_CONTROL_FAIL;
}
break;
case DOKAN_CONTROL_UNMOUNT:
DbgPrintW(L"DokanControl Unmount\n");
mountEntry = FindMountEntry(Control);
if (mountEntry == NULL) {
if (!wcslen(Control->MountPoint))
FindMountPoint(Control);
DbgPrintW(L"DokanControl MountEntry not found. Try unmount '%s' force: %d\n", Control->MountPoint, Control->Option);
if (Control->Option == DOKAN_CONTROL_OPTION_FORCE_UNMOUNT &&
DokanControlUnmount(Control->MountPoint)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
break;
}
Control->Status = DOKAN_CONTROL_FAIL;
break;
}
if (DokanControlUnmount(mountEntry->MountControl.MountPoint)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
if (Control->DeviceName[0] == L'\0') {
wcscpy_s(Control->DeviceName, sizeof(Control->DeviceName) / sizeof(WCHAR),
mountEntry->MountControl.DeviceName);
}
RemoveMountEntry(mountEntry);
} else {
mountEntry->MountControl.Status = DOKAN_CONTROL_FAIL;
Control->Status = DOKAN_CONTROL_FAIL;
}
break;
case DOKAN_CONTROL_CHECK:
{
DbgPrint("DokanControl Check\n");
Control->Status = 0;
}
break;
case DOKAN_CONTROL_FIND:
{
DbgPrintW(L"DokanControl Find\n");
DokanControlFind(Control);
}
break;
case DOKAN_CONTROL_LIST:
{
DbgPrintW(L"DokanControl List\n");
DokanControlList(Control);
}
break;
default:
DbgPrintW(L"DokanControl UnknownType %u\n", Control->Type);
}
return;
}
static VOID DokanControl(PDOKAN_CONTROL Control)
{
PMOUNT_ENTRY mountEntry;
ULONG index = 0;
DWORD written = 0;
Control->Status = DOKAN_CONTROL_FAIL;
switch (Control->Type)
{
case DOKAN_CONTROL_MOUNT:
DbgPrintW(L"DokanControl Mount\n");
// if (DokanControlMount(Control->MountPoint, Control->DeviceName)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
InsertMountEntry(Control);
DbgPrintW(L"DriveLetter: %c, DeviceName %s\n", Control->MountPoint[0], Control->DeviceName);
// } else {
// Control->Status = DOKAN_CONTROL_FAIL;
// }
break;
case DOKAN_CONTROL_UNMOUNT:
DbgPrintW(L"DokanControl Unmount\n");
mountEntry = FindMountEntry(Control);
if (mountEntry == NULL) {
if (Control->Option == DOKAN_CONTROL_OPTION_FORCE_UNMOUNT ) {
Control->Status = DOKAN_CONTROL_SUCCESS;
break;
}
Control->Status = DOKAN_CONTROL_FAIL;
break;
}
// if (DokanControlUnmount(mountEntry->MountControl.MountPoint)) {
Control->Status = DOKAN_CONTROL_SUCCESS;
if (wcslen(Control->DeviceName) == 0) {
wcscpy_s(Control->DeviceName, sizeof(Control->DeviceName) / sizeof(WCHAR),
mountEntry->MountControl.DeviceName);
}
RemoveMountEntry(mountEntry);
// } else {
// mountEntry->MountControl.Status = DOKAN_CONTROL_FAIL;
// Control->Status = DOKAN_CONTROL_FAIL;
// }
break;
case DOKAN_CONTROL_CHECK:
{
DbgPrint("DokanControl Check\n");
Control->Status = 0;
}
break;
case DOKAN_CONTROL_FIND:
{
DbgPrintW(L"DokanControl Find\n");
DokanControlFind(Control);
}
break;
case DOKAN_CONTROL_LIST:
{
DbgPrintW(L"DokanControl List\n");
DokanControlList(Control);
}
break;
default:
DbgPrintW(L"DokanControl UnknownType %u\n", Control->Type);
}
return;
}
