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- Implement RamdiskAddDevice.
- Fix uninitialized pointer in DriverEntry. - Add hack for ReactOS plug and play manager bug. - Fix broken assert. - Now in RamdiskPnp. svn path=/trunk/; revision=34449
This commit is contained in:
ReactOS Portable Systems Group
parent
b1537513ef
commit
fbda572c17
1 changed files with 148 additions and 5 deletions
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@ -8,6 +8,7 @@
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/* INCLUDES *******************************************************************/
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#include <initguid.h>
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#include <ntddk.h>
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#include <ntdddisk.h>
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#include <scsi.h>
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@ -16,12 +17,39 @@
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#include <mountmgr.h>
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#include <helper.h>
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#include <ketypes.h>
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#include <iotypes.h>
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#include <rtlfuncs.h>
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#include <arc/arc.h>
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#include <reactos/drivers/ntddrdsk.h>
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS ********************************************************************/
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typedef enum _RAMDISK_DEVICE_TYPE
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{
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RamdiskFdo,
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RamdiskPdo
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} RAMDISK_DEVICE_TYPE;
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DEFINE_GUID(RamdiskBusInterface,
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0x5DC52DF0,
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0x2F8A,
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0x410F,
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0x80, 0xE4, 0x05, 0xF8, 0x10, 0xE7, 0xA8, 0x8A);
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typedef struct _RAMDISK_EXTENSION
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{
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RAMDISK_DEVICE_TYPE Type;
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PDEVICE_OBJECT DeviceObject;
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PDEVICE_OBJECT PhysicalDeviceObject;
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PDEVICE_OBJECT AttachedDevice;
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IO_REMOVE_LOCK RemoveLock;
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UNICODE_STRING SymbolicLinkName;
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FAST_MUTEX DiskListLock;
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LIST_ENTRY DiskListHead;
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} RAMDISK_EXTENSION, *PRAMDISK_EXTENSION;
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ULONG MaximumViewLength;
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ULONG MaximumPerDiskViewLength;
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ULONG ReportDetectedDevice;
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@ -34,6 +62,7 @@ ULONG DefaultViewLength;
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UNICODE_STRING DriverRegistryPath;
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BOOLEAN ExportBootDiskAsCd;
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BOOLEAN IsWinPEBoot;
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PDEVICE_OBJECT RamdiskBusFdo;
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/* FUNCTIONS ******************************************************************/
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@ -284,9 +313,114 @@ NTAPI
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RamdiskAddDevice(IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT PhysicalDeviceObject)
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{
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UNIMPLEMENTED;
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while (TRUE);
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return STATUS_SUCCESS;
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PRAMDISK_EXTENSION DeviceExtension;
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PDEVICE_OBJECT AttachedDevice;
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NTSTATUS Status;
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UNICODE_STRING DeviceName;
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PDEVICE_OBJECT DeviceObject;
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//
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// Only create the FDO once
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//
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if (RamdiskBusFdo) return STATUS_DEVICE_ALREADY_ATTACHED;
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//
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// Create the FDO
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//
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RtlInitUnicodeString(&DeviceName, L"\\Device\\Ramdisk");
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Status = IoCreateDevice(DriverObject,
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sizeof(RAMDISK_EXTENSION),
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&DeviceName,
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FILE_DEVICE_BUS_EXTENDER,
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FILE_DEVICE_SECURE_OPEN,
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0,
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&DeviceObject);
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if (NT_SUCCESS(Status))
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{
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//
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// Initialize the FDO extension
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//
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DeviceExtension = (PRAMDISK_EXTENSION)DeviceObject->DeviceExtension;
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RtlZeroMemory(DeviceObject->DeviceExtension, sizeof(RAMDISK_EXTENSION));
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//
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// Set FDO flags
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//
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DeviceObject->Flags |= DO_POWER_PAGABLE | DO_DIRECT_IO;
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//
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// Setup the FDO extension
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//
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DeviceExtension->Type = RamdiskFdo;
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ExInitializeFastMutex(&DeviceExtension->DiskListLock);
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IoInitializeRemoveLock(&DeviceExtension->RemoveLock,
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TAG('R', 'a', 'm', 'd'),
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0,
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1);
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InitializeListHead(&DeviceExtension->DiskListHead);
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DeviceExtension->PhysicalDeviceObject = PhysicalDeviceObject;
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DeviceExtension->DeviceObject = DeviceObject;
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//
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// Register the RAM disk device interface
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//
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Status = IoRegisterDeviceInterface(PhysicalDeviceObject,
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&RamdiskBusInterface,
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NULL,
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&DeviceExtension->SymbolicLinkName);
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if (!NT_SUCCESS(Status))
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{
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//
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// Fail
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//
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IoDeleteDevice(DeviceObject);
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return Status;
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}
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//
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// Attach us to the device stack
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//
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AttachedDevice = IoAttachDeviceToDeviceStack(DeviceObject,
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PhysicalDeviceObject);
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DeviceExtension->AttachedDevice = AttachedDevice;
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if (!AttachedDevice)
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{
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//
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// Fail
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//
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IoSetDeviceInterfaceState(&DeviceExtension->SymbolicLinkName, 0);
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RtlFreeUnicodeString(&DeviceExtension->SymbolicLinkName);
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IoDeleteDevice(DeviceObject);
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return STATUS_NO_SUCH_DEVICE;
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}
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//
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// FDO is initialized
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//
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RamdiskBusFdo = DeviceObject;
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//
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// Loop for loader block
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//
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if (KeLoaderBlock)
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{
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//
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// Are we being booted from setup? Not yet supported
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//
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ASSERT (!KeLoaderBlock->SetupLdrBlock);
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}
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//
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// All done
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//
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DeviceObject->Flags &= DO_DEVICE_INITIALIZING;
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Status = STATUS_SUCCESS;
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}
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//
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// Return status
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//
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return Status;
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}
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NTSTATUS
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@ -295,7 +429,7 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath)
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{
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PCHAR BootDeviceName, CommandLine;
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PDEVICE_OBJECT PhysicalDeviceObject;
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PDEVICE_OBJECT PhysicalDeviceObject = NULL;
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NTSTATUS Status;
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//
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@ -388,7 +522,7 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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//
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// Installing from Ramdisk isn't supported yet
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//
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ASSERT(KeLoaderBlock->SetupLdrBlock);
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ASSERT(!KeLoaderBlock->SetupLdrBlock);
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//
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// Are we reporting the device
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@ -408,6 +542,15 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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&PhysicalDeviceObject);
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if (NT_SUCCESS(Status))
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{
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//
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// ReactOS Fix
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// The ReactOS Plug and Play Manager is broken and does not create
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// the required keys when reporting a detected device.
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// We hack around this ourselves.
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//
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RtlCreateUnicodeString(&((PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension)->DeviceNode->InstancePath,
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L"Root\\UNKNOWN\\0000");
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//
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// Create the device object
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//
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