6 #include <pseh/pseh2.h>
9 #define INIT_SECTION __attribute__((section ("INIT")))
11 #define INIT_SECTION /* Done via alloc_text for MSC */
14 #define CDFS_BASIC_SECTOR 2048
15 #define CDFS_PRIMARY_DESCRIPTOR_LOCATION 16
16 #define BLOCKSIZE CDFS_BASIC_SECTOR
17 #define CDFS_MAX_NAME_LEN 256
19 /* Volume descriptor types (VdType) */
20 #define BOOT_VOLUME_DESCRIPTOR_TYPE 0
21 #define PRIMARY_VOLUME_DESCRIPTOR_TYPE 1
22 #define SUPPLEMENTARY_VOLUME_DESCRIPTOR_TYPE 2
23 #define VOLUME_PARTITION_DESCRIPTOR_TYPE 3
24 #define VOLUME_DESCRIPTOR_SET_TERMINATOR 255
29 UCHAR RecordLength
; // 1
30 UCHAR ExtAttrRecordLength
; // 2
31 ULONG ExtentLocationL
; // 3-6
32 ULONG ExtentLocationM
; // 7-10
33 ULONG DataLengthL
; // 11-14
34 ULONG DataLengthM
; // 15-18
42 UCHAR FileFlags
; // 26
43 UCHAR FileUnitSize
; // 27
44 UCHAR InterleaveGapSize
; // 28
45 ULONG VolumeSequenceNumber
; // 29-32
46 UCHAR FileIdLength
; // 33
47 UCHAR FileId
[1]; // 34
51 typedef struct _DIR_RECORD DIR_RECORD
, *PDIR_RECORD
;
53 /* DIR_RECORD.FileFlags */
54 #define FILE_FLAG_HIDDEN 0x01
55 #define FILE_FLAG_DIRECTORY 0x02
56 #define FILE_FLAG_SYSTEM 0x04
57 #define FILE_FLAG_READONLY 0x10
60 /* Volume Descriptor header*/
65 UCHAR StandardId
[5]; // 2-6
69 typedef struct _VD_HEADER VD_HEADER
, *PVD_HEADER
;
73 /* Primary Volume Descriptor */
77 UCHAR StandardId
[5]; // 2-6
80 UCHAR SystemId
[32]; // 9-40
81 UCHAR VolumeId
[32]; // 41-72
82 UCHAR unused1
[8]; // 73-80
83 ULONG VolumeSpaceSizeL
; // 81-84
84 ULONG VolumeSpaceSizeM
; // 85-88
85 UCHAR unused2
[32]; // 89-120
86 ULONG VolumeSetSize
; // 121-124
87 ULONG VolumeSequenceNumber
; // 125-128
88 ULONG LogicalBlockSize
; // 129-132
89 ULONG PathTableSizeL
; // 133-136
90 ULONG PathTableSizeM
; // 137-140
91 ULONG LPathTablePos
; // 141-144
92 ULONG LOptPathTablePos
; // 145-148
93 ULONG MPathTablePos
; // 149-152
94 ULONG MOptPathTablePos
; // 153-156
95 DIR_RECORD RootDirRecord
; // 157-190
96 UCHAR VolumeSetIdentifier
[128]; // 191-318
97 UCHAR PublisherIdentifier
[128]; // 319-446
102 typedef struct _PVD PVD
, *PPVD
;
105 /* Supplementary Volume Descriptor */
109 UCHAR StandardId
[5]; // 2-6
110 UCHAR VdVersion
; // 7
111 UCHAR VolumeFlags
; // 8
112 UCHAR SystemId
[32]; // 9-40
113 UCHAR VolumeId
[32]; // 41-72
114 UCHAR unused1
[8]; // 73-80
115 ULONG VolumeSpaceSizeL
; // 81-84
116 ULONG VolumeSpaceSizeM
; // 85-88
117 UCHAR EscapeSequences
[32]; // 89-120
118 ULONG VolumeSetSize
; // 121-124
119 ULONG VolumeSequenceNumber
; // 125-128
120 ULONG LogicalBlockSize
; // 129-132
121 ULONG PathTableSizeL
; // 133-136
122 ULONG PathTableSizeM
; // 137-140
123 ULONG LPathTablePos
; // 141-144
124 ULONG LOptPathTablePos
; // 145-148
125 ULONG MPathTablePos
; // 149-152
126 ULONG MOptPathTablePos
; // 153-156
127 DIR_RECORD RootDirRecord
; // 157-190
128 UCHAR VolumeSetIdentifier
[128]; // 191-318
129 UCHAR PublisherIdentifier
[128]; // 319-446
135 typedef struct _SVD SVD
, *PSVD
;
143 typedef struct _CDINFO
146 ULONG VolumeSpaceSize
;
150 WCHAR VolumeLabel
[MAXIMUM_VOLUME_LABEL_LENGTH
/ sizeof(WCHAR
)];
151 USHORT VolumeLabelLength
;
158 ERESOURCE VcbResource
;
159 ERESOURCE DirResource
;
161 KSPIN_LOCK FcbListLock
;
162 LIST_ENTRY FcbListHead
;
165 PDEVICE_OBJECT VolumeDevice
;
166 PDEVICE_OBJECT StorageDevice
;
167 PFILE_OBJECT StreamFileObject
;
172 LIST_ENTRY NotifyList
;
173 PNOTIFY_SYNC NotifySync
;
174 } DEVICE_EXTENSION
, *PDEVICE_EXTENSION
, VCB
, *PVCB
;
177 #define FCB_CACHE_INITIALIZED 0x0001
178 #define FCB_IS_VOLUME_STREAM 0x0002
179 #define FCB_IS_VOLUME 0x0004
183 typedef struct _CDFS_SHORT_NAME
186 LARGE_INTEGER StreamOffset
;
188 WCHAR NameBuffer
[13];
189 } CDFS_SHORT_NAME
, *PCDFS_SHORT_NAME
;
193 FSRTL_COMMON_FCB_HEADER RFCB
;
194 SECTION_OBJECT_POINTERS SectionObjectPointers
;
195 ERESOURCE MainResource
;
196 ERESOURCE PagingIoResource
;
198 PFILE_OBJECT FileObject
;
199 PDEVICE_EXTENSION DevExt
;
201 UNICODE_STRING ShortNameU
;
203 WCHAR
*ObjectName
; /* point on filename (250 chars max) in PathName */
204 UNICODE_STRING PathName
; /* path+filename 260 max */
205 WCHAR PathNameBuffer
[MAX_PATH
]; /* Buffer for PathName */
206 WCHAR ShortNameBuffer
[13];
208 LIST_ENTRY FcbListEntry
;
209 struct _FCB
* ParentFcb
;
213 LARGE_INTEGER IndexNumber
; /* HighPart: Parent directory start sector */
214 /* LowPart: Directory record offset in the parent directory file */
221 ERESOURCE NameListResource
;
222 LIST_ENTRY ShortNameList
;
230 PFILE_OBJECT PtrFileObject
;
231 LARGE_INTEGER CurrentByteOffset
;
232 /* for DirectoryControl */
235 /* for DirectoryControl */
236 UNICODE_STRING DirectorySearchPattern
;
241 #define CDFS_TAG 'sfdC'
242 #define CDFS_CCB_TAG 'ccdC'
243 #define CDFS_NONPAGED_FCB_TAG 'nfdC'
244 #define CDFS_SHORT_NAME_TAG 'sgdC'
245 #define CDFS_SEARCH_PATTERN_TAG 'eedC'
246 #define CDFS_FILENAME_TAG 'nFdC'
248 typedef struct _CDFS_GLOBAL_DATA
250 PDRIVER_OBJECT DriverObject
;
251 PDEVICE_OBJECT CdFsDeviceObject
;
252 PDEVICE_OBJECT HddFsDeviceObject
;
254 CACHE_MANAGER_CALLBACKS CacheMgrCallbacks
;
255 FAST_IO_DISPATCH FastIoDispatch
;
256 NPAGED_LOOKASIDE_LIST IrpContextLookasideList
;
257 } CDFS_GLOBAL_DATA
, *PCDFS_GLOBAL_DATA
;
259 #define IRPCONTEXT_CANWAIT 0x1
260 #define IRPCONTEXT_COMPLETE 0x2
261 #define IRPCONTEXT_QUEUE 0x4
263 typedef struct _CDFS_IRP_CONTEXT
265 // NTFSIDENTIFIER Identifier;
267 PIO_STACK_LOCATION Stack
;
270 WORK_QUEUE_ITEM WorkQueueItem
;
273 PDEVICE_OBJECT DeviceObject
;
274 PFILE_OBJECT FileObject
;
275 NTSTATUS SavedExceptionCode
;
277 } CDFS_IRP_CONTEXT
, *PCDFS_IRP_CONTEXT
;
280 extern PCDFS_GLOBAL_DATA CdfsGlobalData
;
287 PDRIVER_OBJECT DriverObject
,
288 PUNICODE_STRING RegistryPath
);
295 PCDFS_IRP_CONTEXT IrpContext
);
303 PCDFS_IRP_CONTEXT IrpContext
);
306 CdfsCloseFile(PDEVICE_EXTENSION DeviceExt
,
307 PFILE_OBJECT FileObject
);
313 CdfsReadSectors(IN PDEVICE_OBJECT DeviceObject
,
315 IN ULONG SectorCount
,
316 IN OUT PUCHAR Buffer
,
317 IN BOOLEAN Override
);
320 CdfsDeviceIoControl (IN PDEVICE_OBJECT DeviceObject
,
322 IN PVOID InputBuffer
,
323 IN ULONG InputBufferSize
,
324 IN OUT PVOID OutputBuffer
,
325 IN OUT PULONG pOutputBufferSize
,
326 IN BOOLEAN Override
);
333 PCDFS_IRP_CONTEXT IrpContext
);
339 PCDFS_IRP_CONTEXT IrpContext
);
345 CdfsDirectoryControl(
346 PCDFS_IRP_CONTEXT IrpContext
);
350 DRIVER_DISPATCH CdfsFsdDispatch
;
354 PDEVICE_OBJECT DeviceObject
,
361 CdfsAcquireForLazyWrite(IN PVOID Context
,
366 CdfsReleaseFromLazyWrite(IN PVOID Context
);
368 FAST_IO_CHECK_IF_POSSIBLE CdfsFastIoCheckIfPossible
;
369 FAST_IO_READ CdfsFastIoRead
;
370 FAST_IO_WRITE CdfsFastIoWrite
;
375 CdfsCreateFCB(PCWSTR FileName
);
378 CdfsDestroyFCB(PFCB Fcb
);
381 CdfsFCBIsDirectory(PFCB Fcb
);
384 CdfsFCBIsRoot(PFCB Fcb
);
387 CdfsGrabFCB(PDEVICE_EXTENSION Vcb
,
391 CdfsReleaseFCB(PDEVICE_EXTENSION Vcb
,
395 CdfsAddFCBToTable(PDEVICE_EXTENSION Vcb
,
399 CdfsGrabFCBFromTable(PDEVICE_EXTENSION Vcb
,
400 PUNICODE_STRING FileName
);
403 CdfsFCBInitializeCache(PVCB Vcb
,
407 CdfsMakeRootFCB(PDEVICE_EXTENSION Vcb
);
410 CdfsOpenRootFCB(PDEVICE_EXTENSION Vcb
);
413 CdfsMakeFCBFromDirEntry(PVCB Vcb
,
418 ULONG DirectorySector
,
419 ULONG DirectoryOffset
,
423 CdfsAttachFCBToFileObject(PDEVICE_EXTENSION Vcb
,
425 PFILE_OBJECT FileObject
);
428 CdfsDirFindFile(PDEVICE_EXTENSION DeviceExt
,
430 PUNICODE_STRING FileToFind
,
434 CdfsGetFCBForFile(PDEVICE_EXTENSION Vcb
,
437 PUNICODE_STRING FileName
);
444 CdfsQueryInformation(
445 PCDFS_IRP_CONTEXT IrpContext
);
450 PCDFS_IRP_CONTEXT IrpContext
);
456 CdfsFileSystemControl(
457 PCDFS_IRP_CONTEXT IrpContext
);
467 CdfsAllocateIrpContext(
468 PDEVICE_OBJECT DeviceObject
,
472 CdfsSwapString(PWCHAR Out
,
477 CdfsDateTimeToSystemTime(PFCB Fcb
,
478 PLARGE_INTEGER SystemTime
);
481 CdfsFileFlagsToAttributes(PFCB Fcb
,
482 PULONG FileAttributes
);
485 CdfsShortNameCacheGet
487 PLARGE_INTEGER StreamOffset
,
488 PUNICODE_STRING LongName
,
489 PUNICODE_STRING ShortName
);
492 CdfsIsRecordValid(IN PDEVICE_EXTENSION DeviceExt
,
493 IN PDIR_RECORD Record
);
496 CdfsGetDirEntryName(PDEVICE_EXTENSION DeviceExt
,
505 PCDFS_IRP_CONTEXT IrpContext
);
510 PCDFS_IRP_CONTEXT IrpContext
);
517 CdfsQueryVolumeInformation(
518 PCDFS_IRP_CONTEXT IrpContext
);
522 CdfsSetVolumeInformation(
523 PCDFS_IRP_CONTEXT IrpContext
);