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Added support for directory/file removing/deleting.

Browse source 
Fixed the overwriting bug between addEntry() and updEntry().
Change FindFile() from serach with a sector and index to search with a single index.

svn path=/trunk/; revision=2171
This commit is contained in:
Hartmut Birr 2001-08-14 20:47:30 +00:00
parent 52a23385a1
commit cc2e3f0806
8 changed files with 569 additions and 388 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
reactos/drivers/fs/vfat/close.c
View file

@ -1,4 +1,4 @@
/* $Id: close.c,v 1.7 2001/05/10 04:02:21 rex Exp $
/* $Id: close.c,v 1.8 2001/08/14 20:47:30 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -18,7 +18,7 @@
/* FUNCTIONS ****************************************************************/
NTSTATUS
NTSTATUS
VfatCloseFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
/*
* FUNCTION: Closes a file
@ -26,6 +26,7 @@ VfatCloseFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
{
PVFATFCB pFcb;
PVFATCCB pCcb;
NTSTATUS Status = STATUS_SUCCESS;
DPRINT ("VfatCloseFile(DeviceExt %x, FileObject %x)\n",
DeviceExt, FileObject);
@ -38,12 +39,30 @@ VfatCloseFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject)
{
return STATUS_SUCCESS;
}
if (FileObject->FileName.Buffer)
{
// This a FO, that was created outside from FSD.
// Some FO's are created with IoCreateStreamFileObject() insid from FSD.
// This FO's haven't a FileName.
pFcb = pCcb->pFcb;
if (FileObject->DeletePending)
{
if (pFcb->Flags & FCB_DELETE_PENDING)
{
delEntry (DeviceExt, FileObject);
}
else
Status = STATUS_DELETE_PENDING;
}
FileObject->FsContext2 = NULL;
vfatReleaseFCB (DeviceExt, pFcb);
}
else
FileObject->FsContext2 = NULL;
pFcb = pCcb->pFcb;
vfatReleaseFCB (DeviceExt, pFcb);
ExFreePool (pCcb);
return STATUS_SUCCESS;
return Status;
}
NTSTATUS STDCALL
@ -59,7 +78,9 @@ VfatClose (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DPRINT ("VfatClose(DeviceObject %x, Irp %x)\n", DeviceObject, Irp);
ExAcquireResourceExclusiveLite (&DeviceExtension->DirResource, TRUE);
Status = VfatCloseFile (DeviceExtension, FileObject);
ExReleaseResourceLite (&DeviceExtension->DirResource);
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = 0;

518
reactos/drivers/fs/vfat/create.c
View file

@ -1,4 +1,4 @@
/* $Id: create.c,v 1.31 2001/08/03 19:00:41 hbirr Exp $
/* $Id: create.c,v 1.32 2001/08/14 20:47:30 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -97,84 +97,116 @@ static void vfat8Dot3ToVolumeLabel (PCHAR pBasename, PCHAR pExtension, PWSTR pN
pName [toIndex] = L'\0';
}
BOOLEAN
GetEntryName (PVOID Block, PULONG _Offset, PWSTR Name, PULONG _jloop,
PDEVICE_EXTENSION DeviceExt, ULONG * _StartingSector)
NTSTATUS
GetEntryName(PDEVICE_EXTENSION DeviceExt,
PVOID Block,
PFILE_OBJECT FileObject,
PWSTR Name,
PULONG pIndex,
PULONG pIndex2)
/*
* FUNCTION: Retrieves the file name, be it in short or long file name format
*/
{
FATDirEntry *test;
slot *test2;
ULONG Offset = *_Offset;
ULONG StartingSector = *_StartingSector;
ULONG jloop = *_jloop;
NTSTATUS Status;
FATDirEntry * test;
slot * test2;
ULONG cpos;
test = (FATDirEntry *) Block;
test2 = (slot *) Block;
ULONG Offset = *pIndex % ENTRIES_PER_SECTOR;
ULONG Read;
*Name = 0;
if (IsDeletedEntry (Block, Offset))
while (TRUE)
{
return (FALSE);
}
test = (FATDirEntry *) Block;
test2 = (slot *) Block;
if (vfatIsDirEntryEndMarker(&test[Offset]))
{
return STATUS_NO_MORE_ENTRIES;
}
if (test2[Offset].attr == 0x0f && !vfatIsDirEntryDeleted(&test[Offset]))
{
*Name = 0;
if (pIndex2)
*pIndex2 = *pIndex; // start of dir entry
if (test2[Offset].attr == 0x0f)
{
vfat_initstr (Name, 256);
vfat_wcsncpy (Name, test2[Offset].name0_4, 5);
vfat_wcsncat (Name, test2[Offset].name5_10, 5, 6);
vfat_wcsncat (Name, test2[Offset].name11_12, 11, 2);
DPRINT (" long name entry found at %d\n", *pIndex);
cpos = 0;
while ((test2[Offset].id != 0x41) && (test2[Offset].id != 0x01) &&
(test2[Offset].attr > 0))
DPRINT (" name chunk1:[%.*S] chunk2:[%.*S] chunk3:[%.*S]\n",
5, test2 [Offset].name0_4,
6, test2 [Offset].name5_10,
2, test2 [Offset].name11_12);
vfat_initstr (Name, 255);
vfat_wcsncpy (Name, test2[Offset].name0_4, 5);
vfat_wcsncat (Name, test2[Offset].name5_10, 5, 6);
vfat_wcsncat (Name, test2[Offset].name11_12, 11, 2);
DPRINT (" longName: [%S]\n", Name);
cpos = 0;
while ((test2[Offset].id != 0x41) && (test2[Offset].id != 0x01) &&
(test2[Offset].attr > 0))
{
Offset++;
(*pIndex)++;
Offset++;
if (Offset == ENTRIES_PER_SECTOR)
{
Offset = 0;
/* FIXME: Check status */
GetNextSector (DeviceExt, StartingSector, &StartingSector, FALSE);
jloop++;
/* FIXME: Check status */
VfatReadSectors (DeviceExt->StorageDevice,
StartingSector, 1, Block);
{
Offset = 0;
Status = VfatReadFile (DeviceExt, FileObject, Block, BLOCKSIZE,
*pIndex * sizeof(FATDirEntry), &Read, TRUE);
if (!NT_SUCCESS(Status) || Read != BLOCKSIZE)
{
return STATUS_NO_MORE_ENTRIES;
}
test2 = (slot *) Block;
}
}
DPRINT (" long name entry found at %d\n", *pIndex);
DPRINT (" name chunk1:[%.*S] chunk2:[%.*S] chunk3:[%.*S]\n",
5, test2 [Offset].name0_4,
6, test2 [Offset].name5_10,
2, test2 [Offset].name11_12);
cpos++;
vfat_movstr (Name, 13, 0, cpos * 13);
vfat_wcsncpy (Name, test2[Offset].name0_4, 5);
vfat_wcsncat (Name, test2[Offset].name5_10, 5, 6);
vfat_wcsncat (Name, test2[Offset].name11_12, 11, 2);
DPRINT (" longName: [%S]\n", Name);
}
Offset++;
if (Offset == ENTRIES_PER_SECTOR)
{
Offset = 0;
/* FIXME: Check status */
GetNextSector (DeviceExt, StartingSector, &StartingSector, FALSE);
jloop++;
/* FIXME: Check status */
VfatReadSectors (DeviceExt->StorageDevice, StartingSector, 1, Block);
test2 = (slot *) Block;
(*pIndex)++;
Offset++;
if (Offset == ENTRIES_PER_SECTOR)
{
Offset = 0;
Status = VfatReadFile (DeviceExt, FileObject, Block, BLOCKSIZE,
*pIndex * sizeof(FATDirEntry), &Read, TRUE);
if (!NT_SUCCESS(Status) || Read != BLOCKSIZE)
{
return STATUS_NO_MORE_ENTRIES;
}
test2 = (slot *) Block;
test = (FATDirEntry*) Block;
}
}
*_Offset = Offset;
*_jloop = jloop;
*_StartingSector = StartingSector;
if (IsDeletedEntry (Block, Offset))
return FALSE;
else
return TRUE;
}
vfat8Dot3ToString (test[Offset].Filename, test[Offset].Ext, Name);
return (TRUE);
{
if (vfatIsDirEntryEndMarker(&test[Offset]))
return STATUS_NO_MORE_ENTRIES;
if (vfatIsDirEntryDeleted(&test[Offset]))
return STATUS_UNSUCCESSFUL;
if (*Name == 0)
{
vfat8Dot3ToString (test[Offset].Filename, test[Offset].Ext, Name);
if (pIndex2)
*pIndex2 = *pIndex;
}
break;
}
}
return STATUS_SUCCESS;
}
NTSTATUS
@ -259,44 +291,68 @@ ReadVolumeLabel (PDEVICE_EXTENSION DeviceExt, PVPB Vpb)
return (STATUS_UNSUCCESSFUL);
}
NTSTATUS
FindFile (PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb,
PVFATFCB Parent, PWSTR FileToFind, ULONG * StartSector,
ULONG * Entry)
FindFile (PDEVICE_EXTENSION DeviceExt,
PVFATFCB Fcb,
PVFATFCB Parent,
PWSTR FileToFind,
ULONG *pDirIndex,
ULONG *pDirIndex2)
/*
* FUNCTION: Find a file
*/
{
ULONG i, j;
ULONG Size;
char *block;
WCHAR name[256];
WCHAR name2[14];
ULONG StartingSector;
ULONG NextCluster;
FILE_OBJECT tmpFileObject;
char * block;
WCHAR TempStr[2];
NTSTATUS Status;
ULONG len;
ULONG DirIndex;
ULONG Offset;
ULONG FirstCluster;
ULONG Read;
BOOL isRoot;
BOOL first;
// DPRINT ("FindFile(Parent %x, FileToFind '%S')\n", Parent, FileToFind);
DPRINT("FindFile: old Pathname %x, old Objectname %x)\n",Fcb->PathName, Fcb->ObjectName);
DPRINT ("FindFile(Parent %x, FileToFind '%S', DirIndex: %d)\n", Parent, FileToFind, pDirIndex ? *pDirIndex : 0);
DPRINT ("FindFile: old Pathname %x, old Objectname %x)\n",Fcb->PathName, Fcb->ObjectName);
isRoot = FALSE;
DirIndex = 0;
if (wcslen (FileToFind) == 0)
{
CHECKPOINT;
TempStr[0] = (WCHAR) '.';
TempStr[1] = 0;
FileToFind = (PWSTR)&TempStr;
}
if (Parent)
{
FirstCluster = vfatDirEntryGetFirstCluster(DeviceExt, &Parent->entry);
if (DeviceExt->FatType == FAT32)
{
CHECKPOINT;
TempStr[0] = (WCHAR) '.';
TempStr[1] = 0;
FileToFind = (PWSTR)&TempStr;
if (FirstCluster == ((struct _BootSector32*)(DeviceExt->Boot))->RootCluster)
isRoot = TRUE;
}
if (Parent == NULL || Parent->entry.FirstCluster == 1)
else
{
Size = DeviceExt->rootDirectorySectors; /* FIXME : in fat32, no limit */
StartingSector = DeviceExt->rootStart;
NextCluster = 0;
if (FileToFind[0] == 0 || (FileToFind[0] == '\\' && FileToFind[1] == 0)
|| (FileToFind[0] == '.' && FileToFind[1] == 0))
if (FirstCluster == 1)
isRoot = TRUE;
}
}
else
isRoot = TRUE;
if (isRoot)
{
if (DeviceExt->FatType == FAT32)
FirstCluster = ((struct _BootSector32*)(DeviceExt->Boot))->RootCluster;
else
FirstCluster = 1;
if (FileToFind[0] == 0 || (FileToFind[0] == '\\' && FileToFind[1] == 0)
|| (FileToFind[0] == '.' && FileToFind[1] == 0))
{
/* it's root : complete essentials fields then return ok */
CHECKPOINT;
@ -308,135 +364,112 @@ FindFile (PDEVICE_EXTENSION DeviceExt, PVFATFCB Fcb,
Fcb->entry.FileSize = DeviceExt->rootDirectorySectors * BLOCKSIZE;
Fcb->entry.Attrib = FILE_ATTRIBUTE_DIRECTORY;
if (DeviceExt->FatType == FAT32)
Fcb->entry.FirstCluster = 2;
{
Fcb->entry.FirstCluster = ((PUSHORT)FirstCluster)[0];
Fcb->entry.FirstClusterHigh = ((PUSHORT)FirstCluster)[1];
}
else
Fcb->entry.FirstCluster = 1;
if (StartSector)
*StartSector = StartingSector;
if (Entry)
*Entry = 0;
DPRINT("FindFile: new Pathname %S, new Objectname %S)\n",Fcb->PathName, Fcb->ObjectName);
if (pDirIndex)
*pDirIndex = 0;
if (pDirIndex2)
*pDirIndex2 = 0;
DPRINT("FindFile: new Pathname %S, new Objectname %S)\n",Fcb->PathName, Fcb->ObjectName);
return (STATUS_SUCCESS);
}
}
}
else
{
DPRINT ("Parent->entry.FileSize %x\n", Parent->entry.FileSize);
{
DPRINT ("Parent->entry.FileSize %x\n", Parent->entry.FileSize);
FirstCluster = vfatDirEntryGetFirstCluster (DeviceExt, &Parent->entry);
}
if (pDirIndex && (*pDirIndex))
DirIndex = *pDirIndex;
Size = ULONG_MAX;
if (DeviceExt->FatType == FAT32)
NextCluster = Parent->entry.FirstCluster
+ Parent->entry.FirstClusterHigh * 65536;
else
NextCluster = Parent->entry.FirstCluster;
StartingSector = ClusterToSector (DeviceExt, NextCluster);
if (Parent->entry.FirstCluster == 1 && DeviceExt->FatType != FAT32)
{
/* read of root directory in FAT16 or FAT12 */
StartingSector = DeviceExt->rootStart;
}
}
memset (&tmpFileObject, 0, sizeof(FILE_OBJECT));
Status = VfatOpenFile(DeviceExt, &tmpFileObject, Parent->PathName);
if (!NT_SUCCESS(Status))
{
if (pDirIndex)
*pDirIndex = DirIndex;
return (STATUS_UNSUCCESSFUL);
}
Offset = DirIndex % ENTRIES_PER_SECTOR;
first = TRUE;
block = ExAllocatePool (NonPagedPool, BLOCKSIZE);
if (StartSector && (*StartSector))
StartingSector = *StartSector;
i = (Entry) ? (*Entry) : 0;
for (j = 0; j < Size; j++)
while(TRUE)
{
if (first || Offset == ENTRIES_PER_SECTOR)
{
/* FIXME: Check status */
VfatReadSectors (DeviceExt->StorageDevice, StartingSector, 1, block);
for (i = (Entry) ? (*Entry) : 0; i < ENTRIES_PER_SECTOR; i++)
{
if (IsVolEntry ((PVOID) block, i))
continue;
if (IsLastEntry ((PVOID) block, i))
{
if (StartSector)
*StartSector = StartingSector;
if (Entry)
*Entry = i;
ExFreePool (block);
return (STATUS_UNSUCCESSFUL);
}
if (GetEntryName
((PVOID) block, &i, name, &j, DeviceExt, &StartingSector))
{
vfat8Dot3ToString(((FATDirEntry *) block)[i].Filename,((FATDirEntry *) block)[i].Ext, name2);
if (wstrcmpjoki (name, FileToFind) || wstrcmpjoki (name2, FileToFind))
{
if (Parent && Parent->PathName)
{
len = wcslen(Parent->PathName);
CHECKPOINT;
memcpy(Fcb->PathName, Parent->PathName, len*sizeof(WCHAR));
Fcb->ObjectName=&Fcb->PathName[len];
if (len != 1 || Fcb->PathName[0] != '\\')
{
Fcb->ObjectName[0] = '\\';
Fcb->ObjectName = &Fcb->ObjectName[1];
}
}
else
{
Fcb->ObjectName=Fcb->PathName;
Fcb->ObjectName[0]='\\';
Fcb->ObjectName=&Fcb->ObjectName[1];
}
memcpy (&Fcb->entry, &((FATDirEntry *) block)[i],
sizeof (FATDirEntry));
vfat_wcsncpy (Fcb->ObjectName, name, MAX_PATH);
if (StartSector)
*StartSector = StartingSector;
if (Entry)
*Entry = i;
ExFreePool (block);
DPRINT("FindFile: new Pathname %S, new Objectname %S)\n",Fcb->PathName, Fcb->ObjectName);
return (STATUS_SUCCESS);
}
}
}
/* not found in this sector, try next : */
/* directory can be fragmented although it is best to keep them
unfragmented. Should we change this to also use GetNextSector?
GetNextSector was originally implemented to handle the case above */
if (Entry)
*Entry = 0;
/* FIXME: Check status */
GetNextSector (DeviceExt, StartingSector, &StartingSector, FALSE);
if ((Parent != NULL && Parent->entry.FirstCluster != 1)
|| DeviceExt->FatType == FAT32)
{
if (StartingSector == ClusterToSector (DeviceExt, NextCluster + 1))
{
Status = GetNextCluster (DeviceExt, NextCluster, &NextCluster,
FALSE);
if (NextCluster == 0 || NextCluster == 0xffffffff)
{
if (StartSector)
*StartSector = StartingSector;
if (Entry)
*Entry = i;
ExFreePool (block);
return (STATUS_UNSUCCESSFUL);
}
StartingSector = ClusterToSector (DeviceExt, NextCluster);
}
}
first = FALSE;
if (Offset == ENTRIES_PER_SECTOR)
Offset = 0;
Status = VfatReadFile (DeviceExt, &tmpFileObject, block, BLOCKSIZE,
(DirIndex - Offset) * sizeof(FATDirEntry), &Read, TRUE);
if (!NT_SUCCESS(Status) || Read != BLOCKSIZE)
{
break;
}
}
if (StartSector)
*StartSector = StartingSector;
if (Entry)
*Entry = i;
if (vfatIsDirEntryVolume(&((FATDirEntry*)block)[Offset]))
{
Offset++;
DirIndex++;
continue;
}
Status = GetEntryName (DeviceExt, block, &tmpFileObject, name, &DirIndex, pDirIndex2);
if (Status == STATUS_NO_MORE_ENTRIES)
break;
Offset = DirIndex % ENTRIES_PER_SECTOR;
if (NT_SUCCESS(Status))
{
vfat8Dot3ToString(((FATDirEntry *) block)[Offset].Filename,((FATDirEntry *) block)[Offset].Ext, name2);
if (wstrcmpjoki (name, FileToFind) || wstrcmpjoki (name2, FileToFind))
{
if (Parent && Parent->PathName)
{
len = wcslen(Parent->PathName);
CHECKPOINT;
memcpy(Fcb->PathName, Parent->PathName, len*sizeof(WCHAR));
Fcb->ObjectName=&Fcb->PathName[len];
if (len != 1 || Fcb->PathName[0] != '\\')
{
Fcb->ObjectName[0] = '\\';
Fcb->ObjectName = &Fcb->ObjectName[1];
}
}
else
{
Fcb->ObjectName=Fcb->PathName;
Fcb->ObjectName[0]='\\';
Fcb->ObjectName=&Fcb->ObjectName[1];
}
memcpy (&Fcb->entry, &((FATDirEntry *) block)[Offset],
sizeof (FATDirEntry));
vfat_wcsncpy (Fcb->ObjectName, name, MAX_PATH);
if (pDirIndex)
*pDirIndex = DirIndex;
DPRINT("FindFile: new Pathname %S, new Objectname %S, DirIndex %d\n",Fcb->PathName, Fcb->ObjectName, DirIndex);
ExFreePool (block);
VfatCloseFile(DeviceExt, &tmpFileObject);
return STATUS_SUCCESS;
}
}
Offset++;
DirIndex++;
}
if (pDirIndex)
*pDirIndex = DirIndex;
ExFreePool (block);
VfatCloseFile(DeviceExt, &tmpFileObject);
return (STATUS_UNSUCCESSFUL);
}
NTSTATUS
vfatMakeAbsoluteFilename (PFILE_OBJECT pFileObject,
NTSTATUS
vfatMakeAbsoluteFilename (PFILE_OBJECT pFileObject,
PWSTR pRelativeFileName,
PWSTR *pAbsoluteFilename)
{
@ -450,16 +483,16 @@ vfatMakeAbsoluteFilename (PFILE_OBJECT pFileObject,
fcb = ccb->pFcb;
assert (fcb);
/* verify related object is a directory and target name
/* verify related object is a directory and target name
don't start with \. */
if (!(fcb->entry.Attrib & FILE_ATTRIBUTE_DIRECTORY)
if (!(fcb->entry.Attrib & FILE_ATTRIBUTE_DIRECTORY)
|| (pRelativeFileName[0] != '\\'))
{
return STATUS_INVALID_PARAMETER;
}
/* construct absolute path name */
assert (wcslen (fcb->PathName) + 1 + wcslen (pRelativeFileName) + 1
assert (wcslen (fcb->PathName) + 1 + wcslen (pRelativeFileName) + 1
<= MAX_PATH);
rcName = ExAllocatePool (NonPagedPool, MAX_PATH);
wcscpy (rcName, fcb->PathName);
@ -518,7 +551,13 @@ VfatOpenFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject,
return Status;
}
}
if (Fcb->Flags & FCB_DELETE_PENDING)
{
vfatReleaseFCB (DeviceExt, Fcb);
if (AbsFileName)
ExFreePool (AbsFileName);
return STATUS_DELETE_PENDING;
}
DPRINT ("Attaching FCB to fileObject\n");
Status = vfatAttachFCBToFileObject (DeviceExt, Fcb, FileObject);
@ -554,14 +593,14 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
FileObject = Stack->FileObject;
DeviceExt = DeviceObject->DeviceExtension;
assert (DeviceExt);
/*
* Check for illegal characters in the file name
*/
c = FileObject->FileName.Buffer;
while (*c != 0)
{
if (*c == L'*' || *c == L'?')
if (*c == L'*' || *c == L'?' || (*c == L'\\' && c[1] == L'\\'))
{
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = STATUS_OBJECT_NAME_INVALID;
@ -583,18 +622,23 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
return Status;
}
if (Status == STATUS_DELETE_PENDING)
{
Irp->IoStatus.Status = Status;
return Status;
}
if (!NT_SUCCESS (Status))
{
/*
* If the file open failed then create the required file
*/
if (RequestedDisposition == FILE_CREATE ||
RequestedDisposition == FILE_OPEN_IF ||
RequestedDisposition == FILE_OVERWRITE_IF ||
if (RequestedDisposition == FILE_CREATE ||
RequestedDisposition == FILE_OPEN_IF ||
RequestedDisposition == FILE_OVERWRITE_IF ||
RequestedDisposition == FILE_SUPERSEDE)
{
CHECKPOINT;
Status =
Status =
addEntry (DeviceExt, FileObject, RequestedOptions,
(Stack->Parameters.
Create.FileAttributes & FILE_ATTRIBUTE_VALID_FLAGS));
@ -609,22 +653,22 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
}
}
else
{
/*
* Otherwise fail if the caller wanted to create a new file
*/
if (RequestedDisposition == FILE_CREATE)
{
/*
* Otherwise fail if the caller wanted to create a new file
*/
if (RequestedDisposition == FILE_CREATE)
{
Irp->IoStatus.Information = FILE_EXISTS;
Status = STATUS_OBJECT_NAME_COLLISION;
}
pCcb = FileObject->FsContext2;
pFcb = pCcb->pFcb;
/*
* If requested then delete the file and create a new one with the
* same name
*/
if (RequestedDisposition == FILE_SUPERSEDE)
}
pCcb = FileObject->FsContext2;
pFcb = pCcb->pFcb;
/*
* If requested then delete the file and create a new one with the
* same name
*/
if (RequestedDisposition == FILE_SUPERSEDE)
{
ULONG Cluster, NextCluster;
/* FIXME set size to 0 and free clusters */
@ -638,34 +682,34 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
pFcb->entry.FirstClusterHigh = 0;
updEntry (DeviceExt, FileObject);
while (Cluster != 0xffffffff && Cluster > 1)
{
Status = GetNextCluster (DeviceExt, Cluster, &NextCluster, TRUE);
WriteCluster (DeviceExt, Cluster, 0);
Cluster = NextCluster;
}
{
Status = GetNextCluster (DeviceExt, Cluster, &NextCluster, TRUE);
WriteCluster (DeviceExt, Cluster, 0);
Cluster = NextCluster;
}
}
/*
* Check the file has the requested attributes
*/
if ((RequestedOptions & FILE_NON_DIRECTORY_FILE)
/*
* Check the file has the requested attributes
*/
if ((RequestedOptions & FILE_NON_DIRECTORY_FILE)
&& (pFcb->entry.Attrib & FILE_ATTRIBUTE_DIRECTORY))
{
Status = STATUS_FILE_IS_A_DIRECTORY;
}
if ((RequestedOptions & FILE_DIRECTORY_FILE)
if ((RequestedOptions & FILE_DIRECTORY_FILE)
&& !(pFcb->entry.Attrib & FILE_ATTRIBUTE_DIRECTORY))
{
Status = STATUS_NOT_A_DIRECTORY;
}
/* FIXME : test share access */
/* FIXME : test write access if requested */
if (!NT_SUCCESS (Status))
VfatCloseFile (DeviceExt, FileObject);
else
Irp->IoStatus.Information = FILE_OPENED;
if (!NT_SUCCESS (Status))
VfatCloseFile (DeviceExt, FileObject);
else
Irp->IoStatus.Information = FILE_OPENED;
/* FIXME : make supersed or overwrite if requested */
}
}
Irp->IoStatus.Status = Status;
@ -684,7 +728,7 @@ VfatCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
assert (DeviceObject);
assert (Irp);
if (DeviceObject->Size == sizeof (DEVICE_OBJECT))
{
/* DeviceObject represents FileSystem instead of logical volume */
@ -700,9 +744,9 @@ VfatCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
ExAcquireResourceExclusiveLite (&DeviceExt->DirResource, TRUE);
Status = VfatCreateFile (DeviceObject, Irp);
ExReleaseResourceLite (&DeviceExt->DirResource);
Irp->IoStatus.Status = Status;
IoCompleteRequest (Irp, IO_NO_INCREMENT);

4
reactos/drivers/fs/vfat/dir.c
View file

@ -276,8 +276,8 @@ DoQuery (PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION Stack)
if (OldSector)
pCcb->StartEntry++;
RC =
FindFile (DeviceExt, &tmpFcb, pFcb, pCharPattern, &pCcb->StartSector,
&pCcb->StartEntry);
FindFile (DeviceExt, &tmpFcb, pFcb, pCharPattern, &pCcb->StartEntry, NULL);
pCcb->StartSector = 1;
DPRINT ("Found %S,RC=%x, sector %x entry %x\n", tmpFcb.ObjectName, RC,
pCcb->StartSector, pCcb->StartEntry);
if (NT_SUCCESS (RC))

242
reactos/drivers/fs/vfat/dirwr.c
View file

@ -1,4 +1,4 @@
/* $Id: dirwr.c,v 1.20 2001/08/03 19:01:17 hbirr Exp $
/* $Id: dirwr.c,v 1.21 2001/08/14 20:47:30 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -90,81 +90,58 @@ FillSlot (slot * Slot, WCHAR * FileName)
}
}
NTSTATUS updEntry (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT pFileObject)
/*
update an existing FAT entry
*/
{
WCHAR DirName[MAX_PATH], *FileName, *PathFileName;
VFATFCB FileFcb;
ULONG Sector = 0, Entry = 0;
PUCHAR Buffer;
FATDirEntry *pEntries;
VFATFCB Fcb;
VFATCCB Ccb;
ULONG Entry = 0;
NTSTATUS status;
FILE_OBJECT FileObject;
PVFATCCB pDirCcb;
PVFATFCB pDirFcb, pFcb;
short i, posCar, NameLen;
PVFATFCB pDirFcb = NULL, pFcb = NULL;
PWCHAR pName;
PathFileName = pFileObject->FileName.Buffer;
pFcb = ((PVFATCCB) pFileObject->FsContext2)->pFcb;
DPRINT ("PathFileName \'%S\'\n", PathFileName);
DPRINT ("updEntry PathFileName \'%S\'\n", pFileObject->FileName.Buffer);
//find last \ in PathFileName
posCar = -1;
for (i = 0; PathFileName[i]; i++)
if (PathFileName[i] == '\\')
posCar = i;
if (posCar == -1)
return STATUS_UNSUCCESSFUL;
FileName = &PathFileName[posCar + 1];
for (NameLen = 0; FileName[NameLen]; NameLen++);
status = vfatGetFCBForFile(DeviceExt, &pDirFcb, &pFcb, pFileObject->FileName.Buffer);
if (pFcb != NULL)
{
vfatReleaseFCB(DeviceExt, pFcb);
}
if (!NT_SUCCESS(status))
{
if (pDirFcb != NULL)
{
vfatReleaseFCB(DeviceExt, pDirFcb);
}
return status;
}
// extract directory name from pathname
if (posCar == 0)
{
// root dir
DirName[0] = L'\\';
DirName[1] = 0;
}
else
{
memcpy (DirName, PathFileName, posCar * sizeof (WCHAR));
DirName[posCar] = 0;
}
if (FileName[0] == 0 && DirName[0] == 0)
return STATUS_SUCCESS; //root : nothing to do ?
memset (&FileObject, 0, sizeof (FILE_OBJECT));
DPRINT ("open directory \'%S\' for update of entry \'%S\'\n", DirName,
FileName);
status = VfatOpenFile (DeviceExt, &FileObject, DirName);
if (!NT_SUCCESS (status))
{
DbgPrint ("Failed to open \'%S\'. Status %lx\n", DirName, status);
return status;
}
pDirCcb = (PVFATCCB) FileObject.FsContext2;
assert (pDirCcb);
pDirFcb = pDirCcb->pFcb;
assert (pDirFcb);
FileFcb.ObjectName = &FileFcb.PathName[0];
status = FindFile (DeviceExt, &FileFcb, pDirFcb, FileName, &Sector, &Entry);
pName = ((PVFATCCB)(pFileObject->FsContext2))->pFcb->ObjectName;
if (*pName == L'\\')
{
pName ++;
}
status = FindFile (DeviceExt, &Fcb, pDirFcb, pName, &Entry, NULL);
if (NT_SUCCESS (status))
{
Buffer = ExAllocatePool (NonPagedPool, BLOCKSIZE);
DPRINT ("update entry: sector %d, entry %d\n", Sector, Entry);
VfatReadSectors (DeviceExt->StorageDevice, Sector, 1, Buffer);
pEntries = (FATDirEntry *) Buffer;
memcpy (&pEntries[Entry], &pFcb->entry, sizeof (FATDirEntry));
VfatWriteSectors (DeviceExt->StorageDevice, Sector, 1, Buffer);
ExFreePool (Buffer);
DPRINT ("update entry: %d\n", Entry);
memset (&FileObject, 0, sizeof(FILE_OBJECT));
memset (&Ccb, 0, sizeof(VFATCCB));
FileObject.FsContext2 = &Ccb;
FileObject.FsContext = &pDirFcb->RFCB;
Ccb.pFcb = pDirFcb;
status = VfatWriteFile(DeviceExt, &FileObject, &pFcb->entry,
sizeof(FATDirEntry), Entry * sizeof(FATDirEntry), FALSE);
if (!NT_SUCCESS (status))
DbgPrint ("Failed to open \'%S\'. Status %lx\n", pDirFcb->PathName, status);
}
VfatCloseFile (DeviceExt, &FileObject);
vfatReleaseFCB(DeviceExt, pDirFcb);
return status;
}
NTSTATUS
addEntry (PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT pFileObject, ULONG RequestedOptions, UCHAR ReqAttr)
@ -184,11 +161,9 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
PUCHAR Buffer, Buffer2;
BOOLEAN needTilde = FALSE, needLong = FALSE;
PVFATFCB newFCB;
PVFATCCB newCCB;
ULONG CurrentCluster;
LARGE_INTEGER SystemTime, LocalTime;
ULONG BytesPerCluster;
NTSTATUS Status;
NTSTATUS Status = STATUS_SUCCESS;
PVFATFCB pFcb;
PVFATCCB pCcb;
@ -204,8 +179,17 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
FileName = &PathFileName[posCar + 1];
for (NameLen = 0; FileName[NameLen]; NameLen++);
// extract directory name from pathname
memcpy (DirName, PathFileName, posCar * sizeof (WCHAR));
DirName[posCar] = 0;
if (posCar == 0)
{
// root dir
DirName[0] = L'\\';
DirName[1] = 0;
}
else
{
memcpy (DirName, PathFileName, posCar * sizeof (WCHAR));
DirName[posCar] = 0;
}
// open parent directory
memset (&FileObject, 0, sizeof (FILE_OBJECT));
status = VfatOpenFile (DeviceExt, &FileObject, DirName);
@ -420,7 +404,9 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
DPRINT1 ("VfatReadFile did not read a complete directory entry\n");
break;
}
if (IsDeletedEntry (&FatEntry, 0))
if (vfatIsDirEntryEndMarker(&FatEntry))
break;
if (vfatIsDirEntryDeleted(&FatEntry))
nbFree++;
else
nbFree = 0;
@ -432,7 +418,18 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
if (RequestedOptions & FILE_DIRECTORY_FILE)
{
NextCluster (DeviceExt, 0, &CurrentCluster, TRUE);
CurrentCluster = 0xffffffff;
status = NextCluster (DeviceExt, 0, &CurrentCluster, TRUE);
if (CurrentCluster == 0xffffffff || !NT_SUCCESS(status))
{
VfatCloseFile (DeviceExt, &FileObject);
ExFreePool (Buffer);
if (!NT_SUCCESS(status))
{
return status;
}
return STATUS_DISK_FULL;
}
// zero the cluster
Buffer2 = ExAllocatePool (NonPagedPool, DeviceExt->BytesPerCluster);
memset (Buffer2, 0, DeviceExt->BytesPerCluster);
@ -452,7 +449,7 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
status =
VfatWriteFile (DeviceExt, &FileObject, Buffer,
sizeof (FATDirEntry) * nbSlots, Offset, FALSE);
DPRINT ("VfatWriteFile() returned: %x\n", status);
DPRINT ("VfatWriteFile() returned: %x\n", status);
}
else
{ //write at end of directory
@ -462,40 +459,25 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
sizeof (FATDirEntry) * (nbSlots + 1), Offset, FALSE);
}
DPRINT ("write entry offset %d status=%x\n", Offset, status);
newCCB = ExAllocatePool (NonPagedPool, sizeof (VFATCCB));
memset (newCCB, 0, sizeof (VFATCCB));
newFCB = vfatNewFCB (NULL);
newCCB->pFcb = newFCB;
newCCB->PtrFileObject = pFileObject;
newFCB->RefCount++;
BytesPerCluster = DeviceExt->Boot->SectorsPerCluster * BLOCKSIZE;
if (BytesPerCluster >= PAGESIZE)
if (!NT_SUCCESS(status))
{
VfatCloseFile (DeviceExt, &FileObject);
if (RequestedOptions & FILE_DIRECTORY_FILE)
{
Status = CcRosInitializeFileCache(pFileObject, &newFCB->RFCB.Bcb,
BytesPerCluster);
}
else
{
Status = CcRosInitializeFileCache(pFileObject, &newFCB->RFCB.Bcb,
PAGESIZE);
// free the reserved cluster
WriteCluster(DeviceExt, CurrentCluster, 0);
}
ExFreePool (Buffer);
return status;
}
/*
* FIXME : initialize all fields in FCB and CCB
*/
vfatAddFCBToTable (DeviceExt, newFCB);
// FEXME: check status
vfatMakeFCBFromDirEntry (DeviceExt, pFcb, FileName, pEntry, &newFCB);
vfatAttachFCBToFileObject (DeviceExt, newFCB, pFileObject);
memcpy (&newFCB->entry, pEntry, sizeof (FATDirEntry));
DPRINT ("new : entry=%11.11s\n", newFCB->entry.Filename);
DPRINT ("new : entry=%11.11s\n", pEntry->Filename);
vfat_wcsncpy (newFCB->PathName, PathFileName, MAX_PATH);
newFCB->ObjectName = newFCB->PathName + (PathFileName - FileName);
newFCB->pDevExt = DeviceExt;
pFileObject->Flags |= FO_FCB_IS_VALID | FO_DIRECT_CACHE_PAGING_READ;
pFileObject->SectionObjectPointers = &newFCB->SectionObjectPointers;
pFileObject->FsContext = (PVOID)&newFCB->RFCB;
pFileObject->FsContext2 = newCCB;
if (RequestedOptions & FILE_DIRECTORY_FILE)
{
// create . and ..
@ -520,4 +502,72 @@ addEntry (PDEVICE_EXTENSION DeviceExt,
return STATUS_SUCCESS;
}
NTSTATUS
delEntry (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT pFileObject)
/*
deleting an existing FAT entry
*/
{
VFATFCB Fcb;
PVFATFCB pFcb = NULL, pDirFcb = NULL;
NTSTATUS status;
PWSTR pName;
ULONG Entry = 0, startEntry, Read, CurrentCluster, NextCluster, i;
FILE_OBJECT FileObject;
VFATCCB Ccb;
FATDirEntry DirEntry;
DPRINT ("delEntry PathFileName \'%S\'\n", pFileObject->FileName.Buffer);
status = vfatGetFCBForFile(DeviceExt, &pDirFcb, &pFcb, pFileObject->FileName.Buffer);
if (pFcb != NULL)
{
vfatReleaseFCB(DeviceExt, pFcb);
}
if (!NT_SUCCESS(status))
{
if (pDirFcb != NULL)
{
vfatReleaseFCB(DeviceExt, pDirFcb);
}
return status;
}
pName = ((PVFATCCB)(pFileObject->FsContext2))->pFcb->ObjectName;
if (*pName == L'\\')
{
pName ++;
}
status = FindFile (DeviceExt, &Fcb, pDirFcb, pName, &Entry, &startEntry);
if (NT_SUCCESS(status))
{
DPRINT ("delete entry: %d to %d\n", startEntry, Entry);
memset (&FileObject, 0, sizeof(FILE_OBJECT));
memset (&Ccb, 0, sizeof(VFATCCB));
FileObject.FsContext2 = &Ccb;
FileObject.FsContext = &pDirFcb->RFCB;
Ccb.pFcb = pDirFcb;
for (i = startEntry; i <= Entry; i++)
{
// FIXME: check status
VfatReadFile (DeviceExt, &FileObject, &DirEntry, sizeof (FATDirEntry),
i * sizeof(FATDirEntry), &Read, FALSE);
DirEntry.Filename[0] = 0xe5;
// FIXME: check status
VfatWriteFile (DeviceExt, &FileObject, &DirEntry, sizeof(FATDirEntry),
i * sizeof(FATDirEntry), FALSE);
}
CurrentCluster = vfatDirEntryGetFirstCluster (DeviceExt, &DirEntry);
while (CurrentCluster && CurrentCluster != 0xffffffff)
{
GetNextCluster (DeviceExt, CurrentCluster, &NextCluster, FALSE);
// FIXME: check status
WriteCluster(DeviceExt, CurrentCluster, 0);
CurrentCluster = NextCluster;
}
}
return status;
}
/* EOF */

79
reactos/drivers/fs/vfat/fcb.c
View file

@ -1,4 +1,4 @@
/* $Id: fcb.c,v 1.8 2001/07/28 07:05:56 hbirr Exp $
/* $Id: fcb.c,v 1.9 2001/08/14 20:47:30 hbirr Exp $
*
*
* FILE: fcb.c
@ -74,7 +74,7 @@ vfatGrabFCB(PDEVICE_EXTENSION pVCB, PVFATFCB pFCB)
KIRQL oldIrql;
DPRINT ("grabbing FCB at %x: %S, refCount:%d\n",
pFCB,
pFCB,
pFCB->PathName,
pFCB->RefCount);
@ -89,13 +89,13 @@ vfatReleaseFCB(PDEVICE_EXTENSION pVCB, PVFATFCB pFCB)
KIRQL oldIrql;
DPRINT ("releasing FCB at %x: %S, refCount:%d\n",
pFCB,
pFCB,
pFCB->PathName,
pFCB->RefCount);
KeAcquireSpinLock (&pVCB->FcbListLock, &oldIrql);
pFCB->RefCount--;
if (pFCB->RefCount <= 0 && !vfatFCBIsDirectory (pVCB, pFCB))
if (pFCB->RefCount <= 0 && (!vfatFCBIsDirectory (pVCB, pFCB) || pFCB->Flags & FCB_DELETE_PENDING))
{
RemoveEntryList (&pFCB->FcbListEntry);
CcRosReleaseFileCache (NULL, pFCB->RFCB.Bcb);
@ -172,9 +172,9 @@ vfatFCBInitializeCache (PVCB vcb, PVFATFCB fcb)
fcb->pDevExt = vcb;
bytesPerCluster = vcb->Boot->SectorsPerCluster * BLOCKSIZE;
fileCacheQuantum = (bytesPerCluster >= PAGESIZE) ?
fileCacheQuantum = (bytesPerCluster >= PAGESIZE) ?
bytesPerCluster : PAGESIZE;
status = CcRosInitializeFileCache (fileObject,
status = CcRosInitializeFileCache (fileObject,
&fcb->RFCB.Bcb,
fileCacheQuantum);
if (!NT_SUCCESS (status))
@ -183,7 +183,7 @@ vfatFCBInitializeCache (PVCB vcb, PVFATFCB fcb)
KeBugCheck (0);
}
ObDereferenceObject (fileObject);
fcb->isCacheInitialized = TRUE;
fcb->Flags |= FCB_CACHE_INITIALIZED;
return status;
}
@ -216,9 +216,9 @@ vfatRequestAndValidateRegion(PDEVICE_EXTENSION pDeviceExt,
if (!valid)
{
currentCluster = vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry);
status = OffsetToCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
pOffset,
status = OffsetToCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
pOffset,
&currentCluster,
pExtend);
if (!NT_SUCCESS (status))
@ -230,9 +230,9 @@ vfatRequestAndValidateRegion(PDEVICE_EXTENSION pDeviceExt,
{
for (i = 0; i < (PAGESIZE / pDeviceExt->BytesPerCluster); i++)
{
status = VfatRawReadCluster (pDeviceExt,
status = VfatRawReadCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
((PCHAR)*pBuffer) +
((PCHAR)*pBuffer) +
(i * pDeviceExt->BytesPerCluster),
currentCluster);
if (!NT_SUCCESS (status))
@ -240,9 +240,9 @@ vfatRequestAndValidateRegion(PDEVICE_EXTENSION pDeviceExt,
CcRosReleaseCacheSegment(pFCB->RFCB.Bcb, *pCacheSegment, FALSE);
return status;
}
status = NextCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
&currentCluster,
status = NextCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
&currentCluster,
pExtend);
if (!NT_SUCCESS (status))
{
@ -257,7 +257,7 @@ vfatRequestAndValidateRegion(PDEVICE_EXTENSION pDeviceExt,
}
else
{
status = VfatRawReadCluster (pDeviceExt,
status = VfatRawReadCluster (pDeviceExt,
vfatDirEntryGetFirstCluster (pDeviceExt, &pFCB->entry),
*pBuffer,
currentCluster);
@ -317,7 +317,7 @@ vfatOpenRootFCB(PDEVICE_EXTENSION pVCB)
{
FCB = vfatMakeRootFCB (pVCB);
}
return FCB;
}
@ -356,15 +356,16 @@ vfatMakeFCBFromDirEntry(PVCB vcb,
memcpy (&rcFCB->entry, dirEntry, sizeof (FAT_DIR_ENTRY));
vfatFCBInitializeCache (vcb, rcFCB);
rcFCB->RefCount++;
vfatAddFCBToTable (vcb, rcFCB);
vfatGrabFCB (vcb, rcFCB);
// vfatGrabFCB (vcb, rcFCB);
*fileFCB = rcFCB;
return STATUS_SUCCESS;
}
NTSTATUS
vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
PVFATFCB fcb,
PFILE_OBJECT fileObject)
{
@ -387,15 +388,15 @@ vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
newCCB->PtrFileObject = fileObject;
fcb->pDevExt = vcb;
if (!fcb->isCacheInitialized)
if (!(fcb->Flags & FCB_CACHE_INITIALIZED))
{
ULONG bytesPerCluster;
ULONG fileCacheQuantum;
bytesPerCluster = vcb->Boot->SectorsPerCluster * BLOCKSIZE;
fileCacheQuantum = (bytesPerCluster >= PAGESIZE) ? bytesPerCluster :
fileCacheQuantum = (bytesPerCluster >= PAGESIZE) ? bytesPerCluster :
PAGESIZE;
status = CcRosInitializeFileCache (fileObject,
status = CcRosInitializeFileCache (fileObject,
&fcb->RFCB.Bcb,
fileCacheQuantum);
if (!NT_SUCCESS (status))
@ -403,7 +404,7 @@ vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
DbgPrint ("CcRosInitializeFileCache failed\n");
KeBugCheck (0);
}
fcb->isCacheInitialized = TRUE;
fcb->Flags |= FCB_CACHE_INITIALIZED;
}
DPRINT ("file open: fcb:%x file size: %d\n", fcb, fcb->entry.FileSize);
@ -412,8 +413,8 @@ vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
}
NTSTATUS
vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
PVFATFCB pDirectoryFCB,
vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
PVFATFCB pDirectoryFCB,
PWSTR pFileToFind,
PVFATFCB * pFoundFCB)
{
@ -430,7 +431,7 @@ vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
assert (pFileToFind);
DPRINT ("vfatDirFindFile(VCB:%08x, dirFCB:%08x, File:%S)\n",
pDeviceExt,
pDeviceExt,
pDirectoryFCB,
pFileToFind);
DPRINT ("Dir Path:%S\n", pDirectoryFCB->PathName);
@ -443,7 +444,7 @@ vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
pFileToFind = defaultFileName;
}
directoryIndex = 0;
directoryIndex = 0;
finishedScanningDirectory = FALSE;
while (!finishedScanningDirectory)
{
@ -462,7 +463,7 @@ vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
return status;
}
DPRINT (" Index:%d longName:%S\n",
DPRINT (" Index:%d longName:%S\n",
directoryIndex,
currentLongName);
@ -479,7 +480,7 @@ vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
pFoundFCB);
return status;
}
else
else
{
vfatGetDirEntryName (&currentDirEntry, currentEntryName);
DPRINT (" entryName:%S\n", currentEntryName);
@ -502,8 +503,8 @@ vfatDirFindFile (PDEVICE_EXTENSION pDeviceExt,
}
NTSTATUS
vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
PVFATFCB *pParentFCB,
vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
PVFATFCB *pParentFCB,
PVFATFCB *pFCB,
const PWSTR pFileName)
{
@ -513,11 +514,11 @@ vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
PWCHAR currentElement;
PVFATFCB FCB;
PVFATFCB parentFCB;
DPRINT ("vfatGetFCBForFile (%x,%x,%x,%S)\n",
pVCB,
pParentFCB,
pFCB,
pVCB,
pParentFCB,
pFCB,
pFileName);
// Trivial case, open of the root directory on volume
@ -573,16 +574,16 @@ vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
parentFCB = FCB;
// Extract next directory level into dirName
vfatWSubString (pathName,
pFileName,
vfatWSubString (pathName,
pFileName,
vfatGetNextPathElement (currentElement) - pFileName);
DPRINT (" pathName:%S\n", pathName);
FCB = vfatGrabFCBFromTable (pVCB, pathName);
if (FCB == NULL)
{
vfatWSubString (elementName,
currentElement,
vfatWSubString (elementName,
currentElement,
vfatGetNextPathElement (currentElement) - currentElement);
DPRINT (" elementName:%S\n", elementName);

60
reactos/drivers/fs/vfat/finfo.c
View file

@ -1,4 +1,4 @@
/* $Id: finfo.c,v 1.8 2001/06/12 12:35:42 ekohl Exp $
/* $Id: finfo.c,v 1.9 2001/08/14 20:47:30 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -145,11 +145,65 @@ VfatSetDispositionInformation(PFILE_OBJECT FileObject,
PDEVICE_OBJECT DeviceObject,
PFILE_DISPOSITION_INFORMATION DispositionInfo)
{
KIRQL oldIrql;
VFATFCB tmpFcb;
WCHAR star[2];
ULONG Index;
NTSTATUS Status = STATUS_SUCCESS;
int count;
PDEVICE_EXTENSION DeviceExt = DeviceObject->DeviceExtension;
DPRINT ("FsdSetDispositionInformation()\n");
FileObject->DeletePending = DispositionInfo->DoDeleteFile;
assert (DeviceExt != NULL);
assert (DeviceExt->BytesPerCluster != 0);
assert (FCB != NULL);
return (STATUS_SUCCESS);
if (!wcscmp(FCB->PathName, L"\\") || !wcscmp(FCB->ObjectName, L"..")
|| !wcscmp(FCB->ObjectName, L"."))
{
// we cannot delete a '.', '..' or the root directory
return STATUS_ACCESS_DENIED;
}
if (DispositionInfo->DoDeleteFile)
{
KeAcquireSpinLock (&DeviceExt->FcbListLock, &oldIrql);
count = FCB->RefCount;
if (FCB->RefCount > 1)
Status = STATUS_ACCESS_DENIED;
else
{
FCB->Flags |= FCB_DELETE_PENDING;
FileObject->DeletePending = TRUE;
}
KeReleaseSpinLock(&DeviceExt->FcbListLock, oldIrql);
DPRINT("RefCount:%d\n", count);
if (NT_SUCCESS(Status) && vfatFCBIsDirectory(DeviceExt, FCB))
{
memset (&tmpFcb, 0, sizeof(VFATFCB));
tmpFcb.ObjectName = tmpFcb.PathName;
star[0] = L'*';
star[1] = 0;
// skip '.' and '..', start by 2
Index = 2;
Status = FindFile (DeviceExt, &tmpFcb, FCB, star, &Index, NULL);
if (NT_SUCCESS(Status))
{
DPRINT1("found: \'%S\'\n", tmpFcb.PathName);
Status = STATUS_DIRECTORY_NOT_EMPTY;
FCB->Flags &= ~FCB_DELETE_PENDING;
FileObject->DeletePending = FALSE;
}
else
{
Status = STATUS_SUCCESS;
}
}
}
else
FileObject->DeletePending = FALSE;
return Status;
}
static NTSTATUS

4
reactos/drivers/fs/vfat/rw.c
View file

@ -1,5 +1,5 @@
/* $Id: rw.c,v 1.30 2001/08/08 19:04:13 hbirr Exp $
/* $Id: rw.c,v 1.31 2001/08/14 20:47:30 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -366,7 +366,7 @@ VfatReadFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject,
assert (DeviceExt != NULL);
assert (DeviceExt->BytesPerCluster != 0);
assert (FileObject != NULL);
assert (FileObject->FsContext != NULL);
assert (FileObject->FsContext2 != NULL);
DPRINT("VfatReadFile(DeviceExt %x, FileObject %x, Buffer %x, "
"Length %d, ReadOffset 0x%x)\n", DeviceExt, FileObject, Buffer,

19
reactos/drivers/fs/vfat/vfat.h
View file

@ -1,4 +1,4 @@
/* $Id: vfat.h,v 1.34 2001/07/28 07:05:56 hbirr Exp $ */
/* $Id: vfat.h,v 1.35 2001/08/14 20:47:30 hbirr Exp $ */
#include <ddk/ntifs.h>
@ -115,20 +115,23 @@ typedef struct
ULONG FatType;
} DEVICE_EXTENSION, *PDEVICE_EXTENSION, VCB, *PVCB;
#define FCB_CACHE_INITIALIZED 0x0001
#define FCB_DELETE_PENDING 0x0002
typedef struct _VFATFCB
{
REACTOS_COMMON_FCB_HEADER RFCB;
SECTION_OBJECT_POINTERS SectionObjectPointers;
FATDirEntry entry;
/* point on filename (250 chars max) in PathName */
WCHAR *ObjectName;
WCHAR *ObjectName;
/* path+filename 260 max */
WCHAR PathName[MAX_PATH];
WCHAR PathName[MAX_PATH];
LONG RefCount;
PDEVICE_EXTENSION pDevExt;
LIST_ENTRY FcbListEntry;
struct _VFATFCB* parentFcb;
BOOL isCacheInitialized;
ULONG Flags;
} VFATFCB, *PVFATFCB;
typedef struct _VFATCCB
@ -253,6 +256,8 @@ addEntry(PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT pFileObject,ULONG RequestedOptions,UCHAR ReqAttr);
NTSTATUS
updEntry(PDEVICE_EXTENSION DeviceExt,PFILE_OBJECT pFileObject);
NTSTATUS
delEntry(PDEVICE_EXTENSION, PFILE_OBJECT);
/*
* String functions
@ -335,6 +340,7 @@ ULONG vfatDirEntryGetFirstCluster (PDEVICE_EXTENSION pDeviceExt,
PFAT_DIR_ENTRY pDirEntry);
BOOL vfatIsDirEntryDeleted (FATDirEntry * pFatDirEntry);
BOOL vfatIsDirEntryVolume (FATDirEntry * pFatDirEntry);
BOOL vfatIsDirEntryEndMarker (FATDirEntry * pFatDirEntry);
void vfatGetDirEntryName (PFAT_DIR_ENTRY pDirEntry, PWSTR pEntryName);
NTSTATUS vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
PVFATFCB pDirectoryFCB,
@ -375,6 +381,11 @@ NTSTATUS vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
PVFATFCB *pParentFCB,
PVFATFCB *pFCB,
const PWSTR pFileName);
NTSTATUS vfatMakeFCBFromDirEntry(PVCB vcb,
PVFATFCB directoryFCB,
PWSTR longName,
PFAT_DIR_ENTRY dirEntry,
PVFATFCB * fileFCB);