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- Add stubs for VolumeControlBlock structure, VolumeDeviceObject,

Browse source 
- Improve FAT_IRP_CONTEXT structure to suit future needs.
- Some more cleanup of fastfat.h (to be separated into a few headers as shown by Alex Vlasov).
- Implement FatBuildIrpContext / FatDestroyIrpContext.
- Implement FatCompleteRequest.
- Implement dispatching of FSCTRL requests.
- DPRINT->DPRINT1 for all unimplemented functions.
- We receive a mount volume request!

svn path=/trunk/; revision=38755
This commit is contained in:
Aleksey Bragin 2009-01-14 10:42:56 +00:00
parent 2ed6687632
commit bc6a89af41
14 changed files with 264 additions and 90 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
reactos/drivers/filesystems/fastfat_new/cleanup.c
View file

@ -17,7 +17,7 @@ NTSTATUS
NTAPI
FatCleanup(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT("FatCleanup(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
DPRINT1("FatCleanup(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
return STATUS_NOT_IMPLEMENTED;
}

2
reactos/drivers/filesystems/fastfat_new/close.c
View file

@ -17,7 +17,7 @@ NTSTATUS
NTAPI
FatClose(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT("FatClose(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
DPRINT1("FatClose(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
return STATUS_NOT_IMPLEMENTED;
}

1
reactos/drivers/filesystems/fastfat_new/create.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatCreate()\n");
return STATUS_NOT_IMPLEMENTED;
}

1
reactos/drivers/filesystems/fastfat_new/device.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatDeviceControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatDeviceControl()\n");
return STATUS_NOT_IMPLEMENTED;
}

1
reactos/drivers/filesystems/fastfat_new/dir.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatDirectoryControl()\n");
return STATUS_NOT_IMPLEMENTED;
}

109
reactos/drivers/filesystems/fastfat_new/fastfat.c
View file

@ -114,5 +114,112 @@ DriverEntry(PDRIVER_OBJECT DriverObject,
return STATUS_SUCCESS;
}
/* EOF */
PFAT_IRP_CONTEXT
NTAPI
FatBuildIrpContext(PIRP Irp,
BOOLEAN CanWait)
{
PIO_STACK_LOCATION IrpSp;
PFAT_IRP_CONTEXT IrpContext;
PVOLUME_DEVICE_OBJECT VolumeObject;
/* Get current IRP stack location */
IrpSp = IoGetCurrentIrpStackLocation(Irp);
/* Allocate memory for the Irp context */
IrpContext = ExAllocateFromNPagedLookasideList(&FatGlobalData.IrpContextList);
/* Zero init memory */
RtlZeroMemory(IrpContext, sizeof(FAT_IRP_CONTEXT));
/* Save IRP, MJ and MN */
IrpContext->Irp = Irp;
IrpContext->MajorFunction = IrpSp->MajorFunction;
IrpContext->MinorFunction = IrpSp->MinorFunction;
/* Set DeviceObject */
if (IrpSp->FileObject)
{
IrpContext->DeviceObject = IrpSp->FileObject->DeviceObject;
/* Save VCB pointer */
VolumeObject = (PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject;
IrpContext->Vcb = &VolumeObject->Vcb;
/* TODO: Handle write-through */
}
else if (IrpContext->MajorFunction == IRP_MJ_FILE_SYSTEM_CONTROL)
{
/* Handle FSCTRL case */
IrpContext->DeviceObject = IrpSp->Parameters.MountVolume.Vpb->RealDevice;
}
/* Set Wait flag */
if (CanWait) IrpContext->Flags |= IRPCONTEXT_CANWAIT;
/* Return prepared context */
return IrpContext;
}
VOID
NTAPI
FatDestroyIrpContext(PFAT_IRP_CONTEXT IrpContext)
{
PAGED_CODE();
/* Make sure it has no pinned stuff */
ASSERT(IrpContext->PinCount == 0);
/* If there is a FatIo context associated with it - free it */
if (IrpContext->FatIoContext)
{
if (!(IrpContext->Flags & IRPCONTEXT_STACK_IO_CONTEXT))
{
/* If a zero mdl was allocated - free it */
if (IrpContext->FatIoContext->ZeroMdl)
IoFreeMdl(IrpContext->FatIoContext->ZeroMdl);
/* Free memory of FatIo context */
ExFreePool(IrpContext->FatIoContext);
}
}
/* Free memory */
ExFreeToNPagedLookasideList(&FatGlobalData.IrpContextList, IrpContext);
}
VOID
NTAPI
FatCompleteRequest(PFAT_IRP_CONTEXT IrpContext OPTIONAL,
PIRP Irp OPTIONAL,
NTSTATUS Status)
{
PAGED_CODE();
if (IrpContext)
{
/* TODO: Unpin repinned BCBs */
//ASSERT(IrpContext->Repinned.Bcb[0] == NULL);
//FatUnpinRepinnedBcbs( IrpContext );
/* Destroy IRP context */
FatDestroyIrpContext(IrpContext);
}
/* Complete the IRP */
if (Irp)
{
/* Cleanup IoStatus.Information in case of error input operation */
if (NT_ERROR(Status) && (Irp->Flags & IRP_INPUT_OPERATION))
{
Irp->IoStatus.Information = 0;
}
/* Save status and complete this IRP */
Irp->IoStatus.Status = Status;
IoCompleteRequest( Irp, IO_DISK_INCREMENT );
}
}
/* EOF */

131
reactos/drivers/filesystems/fastfat_new/fastfat.h
View file

@ -3,6 +3,7 @@
#include <reactos/helper.h>
#include <debug.h>
/* FAT on-disk data structures */
#include <pshpack1.h>
struct _BootSector
{
@ -164,46 +165,15 @@ typedef struct _slot slot;
#include <poppack.h>
#define VFAT_CASE_LOWER_BASE 8 // base is lower case
#define VFAT_CASE_LOWER_EXT 16 // extension is lower case
#define LONGNAME_MAX_LENGTH 256 // max length for a long filename
#define ENTRY_DELETED(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_DELETED(&((DirEntry)->FatX)) : FAT_ENTRY_DELETED(&((DirEntry)->Fat)))
#define ENTRY_VOLUME(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_VOLUME(&((DirEntry)->FatX)) : FAT_ENTRY_VOLUME(&((DirEntry)->Fat)))
#define ENTRY_END(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_END(&((DirEntry)->FatX)) : FAT_ENTRY_END(&((DirEntry)->Fat)))
#define FAT_ENTRY_DELETED(DirEntry) ((DirEntry)->Filename[0] == 0xe5)
#define FAT_ENTRY_END(DirEntry) ((DirEntry)->Filename[0] == 0)
#define FAT_ENTRY_LONG(DirEntry) (((DirEntry)->Attrib & 0x3f) == 0x0f)
#define FAT_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
#define FATX_ENTRY_DELETED(DirEntry) ((DirEntry)->FilenameLength == 0xe5)
#define FATX_ENTRY_END(DirEntry) ((DirEntry)->FilenameLength == 0xff)
#define FATX_ENTRY_LONG(DirEntry) (FALSE)
#define FATX_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
#define FAT_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FAT_DIR_ENTRY))
#define FATX_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FATX_DIR_ENTRY))
typedef struct _FATXDirEntry FATX_DIR_ENTRY, *PFATX_DIR_ENTRY;
union _DIR_ENTRY
{
FAT_DIR_ENTRY Fat;
FATX_DIR_ENTRY FatX;
};
typedef union _DIR_ENTRY DIR_ENTRY, *PDIR_ENTRY;
#define BLOCKSIZE 512
/* File system types */
#define FAT16 (1)
#define FAT12 (2)
#define FAT32 (3)
#define FATX16 (4)
#define FATX32 (5)
/* VCB Flags */
#define VCB_VOLUME_LOCKED 0x0001
#define VCB_DISMOUNT_PENDING 0x0002
#define VCB_IS_FATX 0x0004
@ -232,24 +202,8 @@ typedef struct
struct _VFATFCB;
struct _VFAT_DIRENTRY_CONTEXT;
typedef struct _HASHENTRY
{
ULONG Hash;
struct _VFATFCB* self;
struct _HASHENTRY* next;
}
HASHENTRY;
#define FCB_HASH_TABLE_SIZE 65536
typedef struct DEVICE_EXTENSION *PDEVICE_EXTENSION;
typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG);
typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER)(PDEVICE_EXTENSION,PULONG);
typedef NTSTATUS (*PWRITE_CLUSTER)(PDEVICE_EXTENSION,ULONG,ULONG,PULONG);
typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY)(PVOID*,PVOID*,struct _VFATFCB*,struct _VFAT_DIRENTRY_CONTEXT*,BOOLEAN);
typedef struct _DEVICE_EXTENSION
{
ERESOURCE DirResource;
@ -269,19 +223,10 @@ typedef struct _DEVICE_EXTENSION
ULONG Flags;
struct _VFATFCB * VolumeFcb;
/* Pointers to functions for manipulating FAT. */
PGET_NEXT_CLUSTER GetNextCluster;
PFIND_AND_MARK_AVAILABLE_CLUSTER FindAndMarkAvailableCluster;
PWRITE_CLUSTER WriteCluster;
ULONG CleanShutBitMask;
/* Pointers to functions for manipulating directory entries. */
PGET_NEXT_DIR_ENTRY GetNextDirEntry;
ULONG BaseDateYear;
LIST_ENTRY VolumeListEntry;
} DEVICE_EXTENSION, VCB, *PVCB;
} DEVICE_EXTENSION;
typedef struct _FAT_GLOBAL_DATA
{
@ -298,6 +243,7 @@ typedef struct _FAT_GLOBAL_DATA
extern VFAT_GLOBAL_DATA VfatGlobalData;
/* FCB flags */
#define FCB_CACHE_INITIALIZED 0x0001
#define FCB_DELETE_PENDING 0x0002
#define FCB_IS_FAT 0x0004
@ -315,9 +261,6 @@ typedef struct _VFATFCB
ERESOURCE PagingIoResource;
/* end FCB header required by ROS/NT */
/* directory entry for this file or directory */
DIR_ENTRY entry;
/* Pointer to attributes in entry */
PUCHAR Attributes;
@ -366,12 +309,6 @@ typedef struct _VFATFCB
/* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
ULONG OpenHandleCount;
/* Entry into the hash table for the path + long name */
HASHENTRY Hash;
/* Entry into the hash table for the path + short name */
HASHENTRY ShortHash;
/* List of byte-range locks for this file */
FILE_LOCK FileLock;
@ -394,6 +331,21 @@ typedef struct _VFATCCB
UNICODE_STRING SearchPattern;
} VFATCCB, *PVFATCCB;
/* Volume Control Block */
typedef struct _VCB
{
FSRTL_ADVANCED_FCB_HEADER VolumeFileHeader;
} VCB, *PVCB;
/* Volume Device Object */
typedef struct _VOLUME_DEVICE_OBJECT
{
DEVICE_OBJECT DeviceObject;
FSRTL_COMMON_FCB_HEADER VolumeHeader;
VCB Vcb; /* Must be the last entry! */
} VOLUME_DEVICE_OBJECT, *PVOLUME_DEVICE_OBJECT;
#ifndef TAG
#define TAG(A, B, C, D) (ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) + ((D)<<24))
#endif
@ -403,8 +355,6 @@ typedef struct _VFATCCB
#define TAG_IRP TAG('V', 'I', 'R', 'P')
#define TAG_VFAT TAG('V', 'F', 'A', 'T')
#define ENTRIES_PER_SECTOR (BLOCKSIZE / sizeof(FATDirEntry))
typedef struct __DOSTIME
{
USHORT Second:5;
@ -421,33 +371,32 @@ typedef struct __DOSDATE
}
DOSDATE, *PDOSDATE;
#define IRPCONTEXT_CANWAIT 0x0001
#define IRPCONTEXT_CANWAIT 0x0001
#define IRPCONTEXT_PENDINGRETURNED 0x0002
#define IRPCONTEXT_STACK_IO_CONTEXT 0x0004
typedef struct _FAT_IRP_CONTEXT
{
PIRP Irp;
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExt;
ULONG Flags;
WORK_QUEUE_ITEM WorkQueueItem;
PIO_STACK_LOCATION Stack;
UCHAR MajorFunction;
UCHAR MinorFunction;
PFILE_OBJECT FileObject;
ULONG RefCount;
ULONG Flags;
PVCB Vcb;
ULONG PinCount;
struct _FAT_IO_CONTEXT *FatIoContext;
PDEVICE_EXTENSION DeviceExt;
WORK_QUEUE_ITEM WorkQueueItem;
PIO_STACK_LOCATION Stack;
KEVENT Event;
} FAT_IRP_CONTEXT, *PFAT_IRP_CONTEXT;
typedef struct _VFAT_DIRENTRY_CONTEXT
typedef struct _FAT_IO_CONTEXT
{
ULONG StartIndex;
ULONG DirIndex;
DIR_ENTRY DirEntry;
UNICODE_STRING LongNameU;
UNICODE_STRING ShortNameU;
} VFAT_DIRENTRY_CONTEXT, *PVFAT_DIRENTRY_CONTEXT;
PMDL ZeroMdl;
} _FAT_IO_CONTEXT, *PFAT_IO_CONTEXT;
/* ------------------------------------------------------ shutdown.c */
@ -511,6 +460,20 @@ FatNoopAcquire(IN PVOID Context,
VOID NTAPI
FatNoopRelease(IN PVOID Context);
/* --------------------------------------------------------- fastfat.c */
PFAT_IRP_CONTEXT NTAPI
FatBuildIrpContext(PIRP Irp, BOOLEAN CanWait);
VOID NTAPI
FatDestroyIrpContext(PFAT_IRP_CONTEXT IrpContext);
VOID NTAPI
FatCompleteRequest(PFAT_IRP_CONTEXT IrpContext OPTIONAL,
PIRP Irp OPTIONAL,
NTSTATUS Status);
/* --------------------------------------------------------- lock.c */
NTSTATUS NTAPI

2
reactos/drivers/filesystems/fastfat_new/finfo.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatQueryInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatQueryInformation()\n");
return STATUS_NOT_IMPLEMENTED;
}
@ -24,6 +25,7 @@ NTSTATUS
NTAPI
FatSetInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatSetInformation()\n");
return STATUS_NOT_IMPLEMENTED;
}

1
reactos/drivers/filesystems/fastfat_new/flush.c
View file

@ -18,6 +18,7 @@ NTSTATUS
NTAPI
FatFlushBuffers(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatFlushBuffers()\n");
return STATUS_NOT_IMPLEMENTED;
}

97
reactos/drivers/filesystems/fastfat_new/fsctl.c
View file

@ -13,11 +13,104 @@
/* FUNCTIONS ****************************************************************/
NTSTATUS
NTAPI
FatUserFsCtrl(PFAT_IRP_CONTEXT IrpContext, PIRP Irp)
{
DPRINT1("FatUserFsCtrl()\n");
FatCompleteRequest(IrpContext, Irp, STATUS_INVALID_DEVICE_REQUEST);
return STATUS_INVALID_DEVICE_REQUEST;
}
NTSTATUS
NTAPI
FatVerifyVolume(PFAT_IRP_CONTEXT IrpContext, PIRP Irp)
{
DPRINT1("FatVerifyVolume()\n");
FatCompleteRequest(IrpContext, Irp, STATUS_INVALID_DEVICE_REQUEST);
return STATUS_INVALID_DEVICE_REQUEST;
}
NTSTATUS
NTAPI
FatMountVolume(PFAT_IRP_CONTEXT IrpContext,
PDEVICE_OBJECT TargetDeviceObject,
PVPB Vpb,
PDEVICE_OBJECT FsDeviceObject)
{
DPRINT1("FatMountVolume()\n");
FatCompleteRequest(IrpContext, IrpContext->Irp, STATUS_INVALID_DEVICE_REQUEST);
return STATUS_INVALID_DEVICE_REQUEST;
}
NTSTATUS
NTAPI
FatiFileSystemControl(PFAT_IRP_CONTEXT IrpContext, PIRP Irp)
{
PIO_STACK_LOCATION IrpSp;
NTSTATUS Status;
/* Get current IRP stack location */
IrpSp = IoGetCurrentIrpStackLocation(Irp);
/* Dispatch depending on the minor function */
switch (IrpSp->MinorFunction)
{
case IRP_MN_USER_FS_REQUEST:
Status = FatUserFsCtrl(IrpContext, Irp);
break;
case IRP_MN_MOUNT_VOLUME:
Status = FatMountVolume(IrpContext,
IrpSp->Parameters.MountVolume.DeviceObject,
IrpSp->Parameters.MountVolume.Vpb,
IrpSp->DeviceObject);
break;
case IRP_MN_VERIFY_VOLUME:
Status = FatVerifyVolume(IrpContext, Irp);
break;
default:
DPRINT1("Unhandled FSCTL minor 0x%x\n", IrpSp->MinorFunction);
FatCompleteRequest(IrpContext, Irp, STATUS_INVALID_DEVICE_REQUEST);
Status = STATUS_INVALID_DEVICE_REQUEST;
}
return Status;
}
NTSTATUS
NTAPI
FatFileSystemControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT("VfatFileSystemControl(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
NTSTATUS Status = STATUS_SUCCESS;
PFAT_IRP_CONTEXT IrpContext;
BOOLEAN CanWait = TRUE;
return STATUS_NOT_IMPLEMENTED;
DPRINT1("FatFileSystemControl(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
/* Get CanWait flag */
if (IoGetCurrentIrpStackLocation(Irp)->FileObject)
{
CanWait = IoIsOperationSynchronous(Irp);
}
/* Enter FsRtl critical region */
FsRtlEnterFileSystem();
/* Build an irp context */
IrpContext = FatBuildIrpContext(Irp, CanWait);
/* Call internal function */
Status = FatiFileSystemControl(IrpContext, Irp);
/* Leave FsRtl critical region */
FsRtlExitFileSystem();
return Status;
}

1
reactos/drivers/filesystems/fastfat_new/lock.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatLockControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatLockControl()\n");
return STATUS_NOT_IMPLEMENTED;
}

2
reactos/drivers/filesystems/fastfat_new/rw.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatRead(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatRead()\n");
return STATUS_NOT_IMPLEMENTED;
}
@ -24,6 +25,7 @@ NTSTATUS
NTAPI
FatWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatWrite()\n");
return STATUS_NOT_IMPLEMENTED;
}

2
reactos/drivers/filesystems/fastfat_new/shutdown.c
View file

@ -17,7 +17,7 @@ NTSTATUS
NTAPI
FatShutdown(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT("FatShutdown(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
DPRINT1("FatShutdown(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
return STATUS_NOT_IMPLEMENTED;
}

2
reactos/drivers/filesystems/fastfat_new/volume.c
View file

@ -17,6 +17,7 @@ NTSTATUS
NTAPI
FatQueryVolumeInfo(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatQueryVolumeInfo()\n");
return STATUS_NOT_IMPLEMENTED;
}
@ -24,6 +25,7 @@ NTSTATUS
NTAPI
FatSetVolumeInfo(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
DPRINT1("FatSetVolumeInfo()\n");
return STATUS_NOT_IMPLEMENTED;
}