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sys: decide on device hierarchy: fsctl, fsvrt, fsvol

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This commit is contained in:
Bill Zissimopoulos
2015-11-20 23:39:20 -08:00
parent 4d910c7fa8
commit 93be122c91
5 changed files with 48 additions and 25 deletions
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39
src/sys/driver.c
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@ -21,15 +21,22 @@ DriverEntry(
{
FSP_ENTER();
/* create the file system device object */
/* create the file system control device objects */
UNICODE_STRING DeviceName;
RtlInitUnicodeString(&DeviceName, L"\\Device\\" DEVICE_NAME);
RtlInitUnicodeString(&DeviceName, L"\\Device\\" DISK_DEVICE_NAME);
Result = IoCreateDevice(DriverObject,
sizeof(FSP_FILE_SYSTEM_DEVICE_EXTENSION), &DeviceName, FILE_DEVICE_FILE_SYSTEM, 0, FALSE,
&FspFileSystemDeviceObject);
sizeof(FSP_FSCTL_DEVICE_EXTENSION), &DeviceName, FILE_DEVICE_DISK_FILE_SYSTEM, 0, FALSE,
&FspFsctlDiskDeviceObject);
if (!NT_SUCCESS(Result))
FSP_RETURN();
FspDeviceExtension(FspFileSystemDeviceObject)->Kind = FspFileSystemDeviceExtensionKind;
RtlInitUnicodeString(&DeviceName, L"\\Device\\" NET_DEVICE_NAME);
Result = IoCreateDevice(DriverObject,
sizeof(FSP_FSCTL_DEVICE_EXTENSION), &DeviceName, FILE_DEVICE_NETWORK_FILE_SYSTEM, 0, FALSE,
&FspFsctlNetDeviceObject);
if (!NT_SUCCESS(Result))
FSP_RETURN(IoDeleteDevice(FspFsctlDiskDeviceObject));
FspDeviceExtension(FspFsctlDiskDeviceObject)->Kind = FspFsctlDeviceExtensionKind;
FspDeviceExtension(FspFsctlNetDeviceObject)->Kind = FspFsctlDeviceExtensionKind;
/* setup the driver object */
DriverObject->DriverUnload = FspUnload;
@ -94,11 +101,9 @@ DriverEntry(
FspFastIoDispatch.ReleaseForCcFlush = FspReleaseForCcFlush;
DriverObject->FastIoDispatch = &FspFastIoDispatch;
/*
* Register as a file system; this informs all filter drivers.
* Future drivers will *not* be informed because we are a FILE_DEVICE_FILE_SYSTEM!
*/
IoRegisterFileSystem(FspFileSystemDeviceObject);
/* register our device objects as file systems */
IoRegisterFileSystem(FspFsctlDiskDeviceObject);
IoRegisterFileSystem(FspFsctlNetDeviceObject);
FSP_LEAVE("DriverName=\"%wZ\", RegistryPath=\"%wZ\"",
&DriverObject->DriverName, RegistryPath);
@ -110,14 +115,20 @@ FspUnload(
{
FSP_ENTER_VOID(PAGED_CODE());
if (0 != FspFileSystemDeviceObject)
if (0 != FspFsctlDiskDeviceObject)
{
IoDeleteDevice(FspFileSystemDeviceObject);
FspFileSystemDeviceObject = 0;
IoDeleteDevice(FspFsctlDiskDeviceObject);
FspFsctlDiskDeviceObject = 0;
}
if (0 != FspFsctlNetDeviceObject)
{
IoDeleteDevice(FspFsctlNetDeviceObject);
FspFsctlNetDeviceObject = 0;
}
FSP_LEAVE_VOID("DriverName=\"%wZ\"",
&DriverObject->DriverName);
}
PDEVICE_OBJECT FspFileSystemDeviceObject;
PDEVICE_OBJECT FspFsctlDiskDeviceObject;
PDEVICE_OBJECT FspFsctlNetDeviceObject;