[fireball] 43222: [fastfat_new] - Start integrating FullFAT library. - Current state is that it's able to mount a FAT volume.
29 Sep
2009
29 Sep
'09
10:08 a.m.
Author: fireball
Date: Tue Sep 29 12:08:43 2009
New Revision: 43222
URL: http://svn.reactos.org/svn/reactos?rev=43222&view=rev
Log:
[fastfat_new]
- Start integrating FullFAT library.
- Current state is that it's able to mount a FAT volume.
Added:
trunk/reactos/drivers/filesystems/fastfat_new/fullfat.c (with props)
Modified:
trunk/reactos/drivers/filesystems/fastfat_new/fastfat.h
trunk/reactos/drivers/filesystems/fastfat_new/fastfat.rbuild
trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h
trunk/reactos/drivers/filesystems/fastfat_new/fcb.c
trunk/reactos/drivers/filesystems/fastfat_new/fsctl.c
Modified: trunk/reactos/drivers/filesystems/fastfat_new/fastfat.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fastfat.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fastfat.h [iso-8859-1] Tue Sep 29
12:08:43 2009
@@ -2,6 +2,8 @@
#include <ntdddisk.h>
#include <debug.h>
#include <pseh/pseh2.h>
+
+#include "fullfat.h"
#include <fat.h>
#include <fatstruc.h>
@@ -150,6 +152,14 @@
OUT PVCB *Vcb,
OUT PFCB *FcbOrDcb,
OUT PCCB *Ccb);
+
+/* --------------------------------------------------------- fullfat.c */
+
+FF_T_SINT32
+FatWriteBlocks(FF_T_UINT8 *pBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void
*pParam);
+
+FF_T_SINT32
+FatReadBlocks(FF_T_UINT8 *pBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void
*pParam);
/* --------------------------------------------------------- lock.c */
Modified: trunk/reactos/drivers/filesystems/fastfat_new/fastfat.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fastfat.rbuild [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fastfat.rbuild [iso-8859-1] Tue Sep 29
12:08:43 2009
@@ -3,9 +3,11 @@
<module name="fastfatn" type="kernelmodedriver"
installbase="system32/drivers" installname="fastfatn.sys">
<bootstrap installbase="$(CDOUTPUT)" />
<include base="fastfatn">.</include>
+ <include base="ReactOS">include/reactos/libs/fullfat</include>
<library>ntoskrnl</library>
<library>hal</library>
<library>pseh</library>
+ <library>fullfat</library>
<file>blockdev.c</file>
<file>cleanup.c</file>
<file>close.c</file>
@@ -21,6 +23,7 @@
<file>finfo.c</file>
<file>flush.c</file>
<file>fsctl.c</file>
+ <file>fullfat.c</file>
<file>lock.c</file>
<file>rw.c</file>
<file>shutdown.c</file>
Modified: trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h [iso-8859-1] Tue Sep 29
12:08:43 2009
@@ -35,6 +35,10 @@
BOOLEAN Win31FileSystem;
/* Jan 1, 1980 System Time */
LARGE_INTEGER DefaultFileTime;
+
+ /* FullFAT integration */
+ FF_IOMAN *Ioman;
+ FF_ERROR FF_Error;
} FAT_GLOBAL_DATA;
typedef struct _FAT_PAGE_CONTEXT
@@ -175,6 +179,9 @@
struct _FCB *RootDcb;
ULONG MediaChangeCount;
+
+ /* FullFAT integration */
+ FF_IOMAN *Ioman;
} VCB, *PVCB;
#define VcbToVolumeDeviceObject(xVcb) \
Modified: trunk/reactos/drivers/filesystems/fastfat_new/fcb.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fcb.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fcb.c [iso-8859-1] Tue Sep 29 12:08:43
2009
@@ -12,7 +12,7 @@
#include "fastfat.h"
/* FUNCTIONS ****************************************************************/
-
+#if 0
/**
* Locates FCB by the supplied name in the cache trie of fcbs.
*
@@ -325,4 +325,5 @@
&Context.ShortName, &LongFileName);
return Status;
}
+#endif
/* EOF */
Modified: trunk/reactos/drivers/filesystems/fastfat_new/fsctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fsctl.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fsctl.c [iso-8859-1] Tue Sep 29 12:08:43
2009
@@ -58,6 +58,8 @@
DISK_GEOMETRY DiskGeometry;
ULONG MediaChangeCount = 0;
PVOLUME_DEVICE_OBJECT VolumeDevice;
+ VCB *Vcb;
+ FF_ERROR Error;
DPRINT1("FatMountVolume()\n");
@@ -81,6 +83,9 @@
/* Remove unmounted VCBs */
FatiCleanVcbs(IrpContext);
+ /* Acquire the global exclusive lock */
+ FatAcquireExclusiveGlobal(IrpContext);
+
/* Create a new volume device object */
Status = IoCreateDevice(FatGlobalData.DriverObject,
sizeof(VOLUME_DEVICE_OBJECT) - sizeof(DEVICE_OBJECT),
@@ -90,7 +95,13 @@
FALSE,
(PDEVICE_OBJECT *)&VolumeDevice);
- if (!NT_SUCCESS(Status)) return Status;
+ if (!NT_SUCCESS(Status))
+ {
+ /* Release the global lock */
+ FatReleaseGlobal(IrpContext);
+
+ return Status;
+ }
/* Match alignment requirements */
if (TargetDeviceObject->AlignmentRequirement >
VolumeDevice->DeviceObject.AlignmentRequirement)
@@ -124,14 +135,53 @@
Status = FatInitializeVcb(IrpContext, &VolumeDevice->Vcb, TargetDeviceObject,
Vpb);
if (!NT_SUCCESS(Status)) goto FatMountVolumeCleanup;
+ Vcb = &VolumeDevice->Vcb;
+
+ /* Initialize FullFAT library */
+ Vcb->Ioman = FF_CreateIOMAN(NULL,
+ 8192,
+ VolumeDevice->DeviceObject.SectorSize,
+ &Error);
+
+ ASSERT(Vcb->Ioman);
+
+ /* Register block device read/write functions */
+ Error = FF_RegisterBlkDevice(Vcb->Ioman,
+ VolumeDevice->DeviceObject.SectorSize,
+ (FF_WRITE_BLOCKS)FatWriteBlocks,
+ (FF_READ_BLOCKS)FatReadBlocks,
+ Vcb);
+
+ if (Error)
+ {
+ DPRINT1("Registering block device with FullFAT failed with error %d\n",
Error);
+ FF_DestroyIOMAN(Vcb->Ioman);
+ goto FatMountVolumeCleanup;
+ }
+
+ /* Mount the volume using FullFAT */
+ if(FF_MountPartition(Vcb->Ioman, 0))
+ {
+ DPRINT1("Partition mounting failed\n");
+ FF_DestroyIOMAN(Vcb->Ioman);
+ goto FatMountVolumeCleanup;
+ }
+
+ // TODO: Read BPB and store it in Vcb->Bpb
+
/* Create root DCB for it */
FatCreateRootDcb(IrpContext, &VolumeDevice->Vcb);
/* Keep trace of media changes */
VolumeDevice->Vcb.MediaChangeCount = MediaChangeCount;
+ //ObDereferenceObject(TargetDeviceObject);
+
+ /* Release the global lock */
+ FatReleaseGlobal(IrpContext);
+
/* Notify about volume mount */
- FsRtlNotifyVolumeEvent(VolumeDevice->Vcb.StreamFileObject, FSRTL_VOLUME_MOUNT);
+ //FsRtlNotifyVolumeEvent(VolumeDevice->Vcb.StreamFileObject, FSRTL_VOLUME_MOUNT);
/* Return success */
return STATUS_SUCCESS;
@@ -141,6 +191,10 @@
/* Unwind the routine actions */
IoDeleteDevice((PDEVICE_OBJECT)VolumeDevice);
+
+ /* Release the global lock */
+ FatReleaseGlobal(IrpContext);
+
return Status;
}
Added: trunk/reactos/drivers/filesystems/fastfat_new/fullfat.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fullfat.c (added)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fullfat.c [iso-8859-1] Tue Sep 29
12:08:43 2009
@@ -1,0 +1,75 @@
+/*
+ * PROJECT: ReactOS FAT file system driver
+ * LICENSE: GPL - See COPYING in the top level directory
+ * FILE: drivers/filesystems/fastfat/fullfat.c
+ * PURPOSE: FullFAT integration routines
+ * PROGRAMMERS: Aleksey Bragin (aleksey(a)reactos.org)
+ */
+
+/* INCLUDES *****************************************************************/
+
+#define NDEBUG
+#include "fastfat.h"
+
+/* GLOBALS ******************************************************************/
+
+#define TAG_FULLFAT 'FLUF'
+
+/* FUNCTIONS ****************************************************************/
+
+VOID *
+FF_Malloc(FF_T_UINT32 allocSize)
+{
+ return ExAllocatePoolWithTag(PagedPool, allocSize, TAG_FULLFAT);
+}
+
+VOID
+FF_Free(VOID *pBuffer)
+{
+ return ExFreePoolWithTag(pBuffer, TAG_FULLFAT);
+}
+
+FF_T_SINT32
+FatWriteBlocks(FF_T_UINT8 *pBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void
*pParam)
+{
+ DPRINT1("FatWriteBlocks %p %d %d %p\n", pBuffer, SectorAddress, Count,
pParam);
+
+ return 0;
+}
+
+FF_T_SINT32
+FatReadBlocks(FF_T_UINT8 *DestBuffer, FF_T_UINT32 SectorAddress, FF_T_UINT32 Count, void
*pParam)
+{
+ LARGE_INTEGER Offset;
+ PVOID Buffer;
+ PVCB Vcb = (PVCB)pParam;
+ PBCB Bcb;
+ ULONG SectorSize = 512; // FIXME: hardcoding 512 is bad
+
+ DPRINT1("FatReadBlocks %p %d %d %p\n", DestBuffer, SectorAddress, Count,
pParam);
+
+ /* Calculate the offset */
+ Offset.QuadPart = Int32x32To64(SectorAddress, SectorSize);
+
+ if (!CcMapData(Vcb->StreamFileObject,
+ &Offset,
+ Count * SectorSize,
+ TRUE,
+ &Bcb,
+ &Buffer))
+ {
+ /* Mapping failed */
+ return 0;
+ }
+
+ /* Copy data to the buffer */
+ RtlCopyMemory(DestBuffer, Buffer, Count * SectorSize);
+
+ /* Unpin unneeded data */
+ CcUnpinData(Bcb);
+
+ /* Return amount of read data in sectors */
+ return Count;
+}
+
+/* EOF */
Propchange: trunk/reactos/drivers/filesystems/fastfat_new/fullfat.c
------------------------------------------------------------------------------
svn:eol-style = native
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