fs.h@ 68836

Last change on this file since 68836 was 67731, checked in by vboxsync, 7 years ago
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1	/** @file
2	* IPRT - Filesystem.
3	*/
4
5	/*
6	* Copyright (C) 2006-2016 Oracle Corporation
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*/
25
26	#ifndef ___iprt_fs_h
27	#define ___iprt_fs_h
28
29	#include <iprt/cdefs.h>
30	#include <iprt/types.h>
31	#include <iprt/time.h>
32
33
34	RT_C_DECLS_BEGIN
35
36	/** @defgroup grp_rt_fs RTFs - Filesystem and Volume
37	* @ingroup grp_rt
38	* @{
39	*/
40
41
42	/** @name Filesystem Object Mode Flags.
43	*
44	* There are two sets of flags: the unix mode flags and the dos attributes.
45	*
46	* APIs returning mode flags will provide both sets.
47	*
48	* When specifying mode flags to any API at least one of them must be given. If
49	* one set is missing the API will synthesize it from the one given if it
50	* requires it.
51	*
52	* Both sets match their x86 ABIs, the DOS/NT one is simply shifted up 16 bits.
53	* The DOS/NT range is bits 16 to 31 inclusively. The Unix range is bits 0 to 15
54	* (inclusively).
55	*
56	* @remarks These constants have been comitted to a binary format and must not
57	* be changed in any incompatible ways.
58	*
59	* @{
60	*/
61
62	/** Set user id on execution (S_ISUID). */
63	#define RTFS_UNIX_ISUID 0004000U
64	/** Set group id on execution (S_ISGID). */
65	#define RTFS_UNIX_ISGID 0002000U
66	/** Sticky bit (S_ISVTX / S_ISTXT). */
67	#define RTFS_UNIX_ISTXT 0001000U
68
69	/** Owner RWX mask (S_IRWXU). */
70	#define RTFS_UNIX_IRWXU 0000700U
71	/** Owner readable (S_IRUSR). */
72	#define RTFS_UNIX_IRUSR 0000400U
73	/** Owner writable (S_IWUSR). */
74	#define RTFS_UNIX_IWUSR 0000200U
75	/** Owner executable (S_IXUSR). */
76	#define RTFS_UNIX_IXUSR 0000100U
77
78	/** Group RWX mask (S_IRWXG). */
79	#define RTFS_UNIX_IRWXG 0000070U
80	/** Group readable (S_IRGRP). */
81	#define RTFS_UNIX_IRGRP 0000040U
82	/** Group writable (S_IWGRP). */
83	#define RTFS_UNIX_IWGRP 0000020U
84	/** Group executable (S_IXGRP). */
85	#define RTFS_UNIX_IXGRP 0000010U
86
87	/** Other RWX mask (S_IRWXO). */
88	#define RTFS_UNIX_IRWXO 0000007U
89	/** Other readable (S_IROTH). */
90	#define RTFS_UNIX_IROTH 0000004U
91	/** Other writable (S_IWOTH). */
92	#define RTFS_UNIX_IWOTH 0000002U
93	/** Other executable (S_IXOTH). */
94	#define RTFS_UNIX_IXOTH 0000001U
95
96	/** All UNIX access permission bits (0777). */
97	#define RTFS_UNIX_ALL_ACCESS_PERMS 0000777U
98	/** All UNIX permission bits, including set id and sticky bits. */
99	#define RTFS_UNIX_ALL_PERMS 0007777U
100
101	/** Named pipe (fifo) (S_IFIFO). */
102	#define RTFS_TYPE_FIFO 0010000U
103	/** Character device (S_IFCHR). */
104	#define RTFS_TYPE_DEV_CHAR 0020000U
105	/** Directory (S_IFDIR). */
106	#define RTFS_TYPE_DIRECTORY 0040000U
107	/** Block device (S_IFBLK). */
108	#define RTFS_TYPE_DEV_BLOCK 0060000U
109	/** Regular file (S_IFREG). */
110	#define RTFS_TYPE_FILE 0100000U
111	/** Symbolic link (S_IFLNK). */
112	#define RTFS_TYPE_SYMLINK 0120000U
113	/** Socket (S_IFSOCK). */
114	#define RTFS_TYPE_SOCKET 0140000U
115	/** Whiteout (S_IFWHT). */
116	#define RTFS_TYPE_WHITEOUT 0160000U
117	/** Type mask (S_IFMT). */
118	#define RTFS_TYPE_MASK 0170000U
119	/** The shift count to convert between RTFS_TYPE_MASK and DIRENTRYTYPE. */
120	#define RTFS_TYPE_DIRENTRYTYPE_SHIFT 12
121
122	/** Unix attribute mask. */
123	#define RTFS_UNIX_MASK 0xffffU
124	/** The mask of all the NT, OS/2 and DOS attributes. */
125	#define RTFS_DOS_MASK (0x7fffU << RTFS_DOS_SHIFT)
126
127	/** The shift value. */
128	#define RTFS_DOS_SHIFT 16
129	/** The mask of the OS/2 and DOS attributes. */
130	#define RTFS_DOS_MASK_OS2 (0x003fU << RTFS_DOS_SHIFT)
131	/** The mask of the NT attributes. */
132	#define RTFS_DOS_MASK_NT (0x7fffU << RTFS_DOS_SHIFT)
133
134	/** Readonly object. */
135	#define RTFS_DOS_READONLY (0x0001U << RTFS_DOS_SHIFT)
136	/** Hidden object. */
137	#define RTFS_DOS_HIDDEN (0x0002U << RTFS_DOS_SHIFT)
138	/** System object. */
139	#define RTFS_DOS_SYSTEM (0x0004U << RTFS_DOS_SHIFT)
140	/** Directory. */
141	#define RTFS_DOS_DIRECTORY (0x0010U << RTFS_DOS_SHIFT)
142	/** Archived object.
143	* This bit is set by the filesystem after each modification of a file. */
144	#define RTFS_DOS_ARCHIVED (0x0020U << RTFS_DOS_SHIFT)
145	/** Undocumented / Reserved, used to be the FAT volume label. */
146	#define RTFS_DOS_NT_DEVICE (0x0040U << RTFS_DOS_SHIFT)
147	/** Normal object, no other attribute set (NT). */
148	#define RTFS_DOS_NT_NORMAL (0x0080U << RTFS_DOS_SHIFT)
149	/** Temporary object (NT). */
150	#define RTFS_DOS_NT_TEMPORARY (0x0100U << RTFS_DOS_SHIFT)
151	/** Sparse file (NT). */
152	#define RTFS_DOS_NT_SPARSE_FILE (0x0200U << RTFS_DOS_SHIFT)
153	/** Reparse point (NT). */
154	#define RTFS_DOS_NT_REPARSE_POINT (0x0400U << RTFS_DOS_SHIFT)
155	/** Compressed object (NT).
156	* For a directory, compression is the default for new files. */
157	#define RTFS_DOS_NT_COMPRESSED (0x0800U << RTFS_DOS_SHIFT)
158	/** Physically offline data (NT).
159	* MSDN say, don't mess with this one. */
160	#define RTFS_DOS_NT_OFFLINE (0x1000U << RTFS_DOS_SHIFT)
161	/** Not content indexed by the content indexing service (NT). */
162	#define RTFS_DOS_NT_NOT_CONTENT_INDEXED (0x2000U << RTFS_DOS_SHIFT)
163	/** Encryped object (NT).
164	* For a directory, encrypted is the default for new files. */
165	#define RTFS_DOS_NT_ENCRYPTED (0x4000U << RTFS_DOS_SHIFT)
166
167	/** @} */
168
169
170	/** @name Filesystem Object Type Predicates.
171	* @{ */
172	/** Checks the mode flags indicate a named pipe (fifo) (S_ISFIFO). */
173	#define RTFS_IS_FIFO(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_FIFO )
174	/** Checks the mode flags indicate a character device (S_ISCHR). */
175	#define RTFS_IS_DEV_CHAR(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DEV_CHAR )
176	/** Checks the mode flags indicate a directory (S_ISDIR). */
177	#define RTFS_IS_DIRECTORY(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DIRECTORY )
178	/** Checks the mode flags indicate a block device (S_ISBLK). */
179	#define RTFS_IS_DEV_BLOCK(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DEV_BLOCK )
180	/** Checks the mode flags indicate a regular file (S_ISREG). */
181	#define RTFS_IS_FILE(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_FILE )
182	/** Checks the mode flags indicate a symbolic link (S_ISLNK). */
183	#define RTFS_IS_SYMLINK(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_SYMLINK )
184	/** Checks the mode flags indicate a socket (S_ISSOCK). */
185	#define RTFS_IS_SOCKET(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_SOCKET )
186	/** Checks the mode flags indicate a whiteout (S_ISWHT). */
187	#define RTFS_IS_WHITEOUT(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_WHITEOUT )
188	/** @} */
189
190
191	/**
192	* Filesystem type IDs returned by RTFsQueryType.
193	*
194	* This enum is subject to changes and must not be used as part of any ABI or
195	* binary format (file, network, etc).
196	*
197	* @remarks When adding new entries, please update RTFsTypeName(). Also, try
198	* add them to the most natural group.
199	*/
200	typedef enum RTFSTYPE
201	{
202	/** Unknown file system. */
203	RTFSTYPE_UNKNOWN = 0,
204
205	/** Universal Disk Format. */
206	RTFSTYPE_UDF,
207	/** ISO 9660, aka Compact Disc File System (CDFS). */
208	RTFSTYPE_ISO9660,
209	/** Filesystem in Userspace. */
210	RTFSTYPE_FUSE,
211	/** VirtualBox shared folders. */
212	RTFSTYPE_VBOXSHF,
213
214	/* Linux: */
215	RTFSTYPE_EXT,
216	RTFSTYPE_EXT2,
217	RTFSTYPE_EXT3,
218	RTFSTYPE_EXT4,
219	RTFSTYPE_XFS,
220	RTFSTYPE_CIFS,
221	RTFSTYPE_SMBFS,
222	RTFSTYPE_TMPFS,
223	RTFSTYPE_SYSFS,
224	RTFSTYPE_PROC,
225	RTFSTYPE_OCFS2,
226	RTFSTYPE_BTRFS,
227
228	/* Windows: */
229	/** New Technology File System. */
230	RTFSTYPE_NTFS,
231	/** FAT12, FAT16 and FAT32 lumped into one basket.
232	* The partition size limit of FAT12 and FAT16 will be the factor
233	* limiting the file size (except, perhaps for the 64KB cluster case on
234	* non-Windows hosts). */
235	RTFSTYPE_FAT,
236	/** Extended File Allocation Table, main target are flash drives. */
237	RTFSTYPE_EXFAT,
238
239	/* Solaris: */
240	/** Zettabyte File System. */
241	RTFSTYPE_ZFS,
242	/** Unix File System. */
243	RTFSTYPE_UFS,
244	/** Network File System. */
245	RTFSTYPE_NFS,
246
247	/* Mac OS X: */
248	/** Hierarchical File System. */
249	RTFSTYPE_HFS,
250	/** @todo RTFSTYPE_HFS_PLUS? */
251	RTFSTYPE_AUTOFS,
252	RTFSTYPE_DEVFS,
253
254	/* BSD: /
255
256	/* OS/2: */
257	/** High Performance File System. */
258	RTFSTYPE_HPFS,
259	/** Journaled File System (v2). */
260	RTFSTYPE_JFS,
261
262	/** The end of valid Filesystem types IDs. */
263	RTFSTYPE_END,
264	/** The usual 32-bit type blow up. */
265	RTFSTYPE_32BIT_HACK = 0x7fffffff
266	} RTFSTYPE;
267	/** Pointer to a Filesystem type ID. */
268	typedef RTFSTYPE *PRTFSTYPE;
269
270
271	/**
272	* The available additional information in a RTFSOBJATTR object.
273	*/
274	typedef enum RTFSOBJATTRADD
275	{
276	/** No additional information is available / requested. */
277	RTFSOBJATTRADD_NOTHING = 1,
278	/** The additional unix attributes (RTFSOBJATTR::u::Unix) are available /
279	* requested. */
280	RTFSOBJATTRADD_UNIX,
281	/** The additional unix attributes (RTFSOBJATTR::u::UnixOwner) are
282	* available / requested. */
283	RTFSOBJATTRADD_UNIX_OWNER,
284	/** The additional unix attributes (RTFSOBJATTR::u::UnixGroup) are
285	* available / requested. */
286	RTFSOBJATTRADD_UNIX_GROUP,
287	/** The additional extended attribute size (RTFSOBJATTR::u::EASize) is available / requested. */
288	RTFSOBJATTRADD_EASIZE,
289	/** The last valid item (inclusive).
290	* The valid range is RTFSOBJATTRADD_NOTHING thru RTFSOBJATTRADD_LAST. */
291	RTFSOBJATTRADD_LAST = RTFSOBJATTRADD_EASIZE,
292
293	/** The usual 32-bit hack. */
294	RTFSOBJATTRADD_32BIT_SIZE_HACK = 0x7fffffff
295	} RTFSOBJATTRADD;
296
297	/** The number of bytes reserved for the additional attribute union. */
298	#define RTFSOBJATTRUNION_MAX_SIZE 128
299
300	/**
301	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX).
302	*/
303	typedef struct RTFSOBJATTRUNIX
304	{
305	/** The user owning the filesystem object (st_uid).
306	* This field is NIL_UID if not supported. */
307	RTUID uid;
308
309	/** The group the filesystem object is assigned (st_gid).
310	* This field is NIL_GID if not supported. */
311	RTGID gid;
312
313	/** Number of hard links to this filesystem object (st_nlink).
314	* This field is 1 if the filesystem doesn't support hardlinking or
315	* the information isn't available.
316	*/
317	uint32_t cHardlinks;
318
319	/** The device number of the device which this filesystem object resides on (st_dev).
320	* This field is 0 if this information is not available. */
321	RTDEV INodeIdDevice;
322
323	/** The unique identifier (within the filesystem) of this filesystem object (st_ino).
324	* Together with INodeIdDevice, this field can be used as a OS wide unique id
325	* when both their values are not 0.
326	* This field is 0 if the information is not available.
327	*
328	* @remarks The special '..' dir always shows up with 0 on NTFS/Windows. */
329	RTINODE INodeId;
330
331	/** User flags (st_flags).
332	* This field is 0 if this information is not available. */
333	uint32_t fFlags;
334
335	/** The current generation number (st_gen).
336	* This field is 0 if this information is not available. */
337	uint32_t GenerationId;
338
339	/** The device number of a character or block device type object (st_rdev).
340	* This field is 0 if the file isn't of a character or block device type and
341	* when the OS doesn't subscribe to the major+minor device idenfication scheme. */
342	RTDEV Device;
343	} RTFSOBJATTRUNIX;
344
345
346	/**
347	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX_OWNER).
348	*
349	* @remarks This interface is mainly for TAR.
350	*/
351	typedef struct RTFSOBJATTRUNIXOWNER
352	{
353	/** The user owning the filesystem object (st_uid).
354	* This field is NIL_UID if not supported. */
355	RTUID uid;
356	/** The user name.
357	* Empty if not available or not supported, truncated if too long. */
358	char szName[RTFSOBJATTRUNION_MAX_SIZE - sizeof(RTUID)];
359	} RTFSOBJATTRUNIXOWNER;
360
361
362	/**
363	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX_GROUP).
364	*
365	* @remarks This interface is mainly for TAR.
366	*/
367	typedef struct RTFSOBJATTRUNIXGROUP
368	{
369	/** The user owning the filesystem object (st_uid).
370	* This field is NIL_GID if not supported. */
371	RTGID gid;
372	/** The group name.
373	* Empty if not available or not supported, truncated if too long. */
374	char szName[RTFSOBJATTRUNION_MAX_SIZE - sizeof(RTGID)];
375	} RTFSOBJATTRUNIXGROUP;
376
377
378	/**
379	* Filesystem object attributes.
380	*/
381	typedef struct RTFSOBJATTR
382	{
383	/** Mode flags (st_mode). RTFS_UNIX_, RTFS_TYPE_, and RTFS_DOS_. /
384	RTFMODE fMode;
385
386	/** The additional attributes available. */
387	RTFSOBJATTRADD enmAdditional;
388
389	/**
390	* Additional attributes.
391	*
392	* Unless explicitly specified to an API, the API can provide additional
393	* data as it is provided by the underlying OS.
394	*/
395	union RTFSOBJATTRUNION
396	{
397	/** Additional Unix Attributes - RTFSOBJATTRADD_UNIX. */
398	RTFSOBJATTRUNIX Unix;
399	/** Additional Unix Owner Attributes - RTFSOBJATTRADD_UNIX_OWNER. */
400	RTFSOBJATTRUNIXOWNER UnixOwner;
401	/** Additional Unix Group Attributes - RTFSOBJATTRADD_UNIX_GROUP. */
402	RTFSOBJATTRUNIXGROUP UnixGroup;
403
404	/**
405	* Extended attribute size is available when RTFS_DOS_HAVE_EA_SIZE is set.
406	*/
407	struct RTFSOBJATTREASIZE
408	{
409	/** Size of EAs. */
410	RTFOFF cb;
411	} EASize;
412	/** Reserved space. */
413	uint8_t abReserveSpace[128];
414	} u;
415	} RTFSOBJATTR;
416	/** Pointer to a filesystem object attributes structure. */
417	typedef RTFSOBJATTR *PRTFSOBJATTR;
418	/** Pointer to a const filesystem object attributes structure. */
419	typedef const RTFSOBJATTR *PCRTFSOBJATTR;
420
421
422	/**
423	* Filesystem object information structure.
424	*
425	* This is returned by the RTPathQueryInfo(), RTFileQueryInfo() and RTDirRead() APIs.
426	*/
427	typedef struct RTFSOBJINFO
428	{
429	/** Logical size (st_size).
430	* For normal files this is the size of the file.
431	* For symbolic links, this is the length of the path name contained
432	* in the symbolic link.
433	* For other objects this fields needs to be specified.
434	*/
435	RTFOFF cbObject;
436
437	/** Disk allocation size (st_blocks * DEV_BSIZE). */
438	RTFOFF cbAllocated;
439
440	/** Time of last access (st_atime). */
441	RTTIMESPEC AccessTime;
442
443	/** Time of last data modification (st_mtime). */
444	RTTIMESPEC ModificationTime;
445
446	/** Time of last status change (st_ctime).
447	* If not available this is set to ModificationTime.
448	*/
449	RTTIMESPEC ChangeTime;
450
451	/** Time of file birth (st_birthtime).
452	* If not available this is set to ChangeTime.
453	*/
454	RTTIMESPEC BirthTime;
455
456	/** Attributes. */
457	RTFSOBJATTR Attr;
458
459	} RTFSOBJINFO;
460	/** Pointer to a filesystem object information structure. */
461	typedef RTFSOBJINFO *PRTFSOBJINFO;
462	/** Pointer to a const filesystem object information structure. */
463	typedef const RTFSOBJINFO *PCRTFSOBJINFO;
464
465
466	#ifdef IN_RING3
467
468	/**
469	* Query the sizes of a filesystem.
470	*
471	* @returns iprt status code.
472	* @param pszFsPath Path within the mounted filesystem.
473	* @param pcbTotal Where to store the total filesystem space. (Optional)
474	* @param pcbFree Where to store the remaining free space in the filesystem. (Optional)
475	* @param pcbBlock Where to store the block size. (Optional)
476	* @param pcbSector Where to store the sector size. (Optional)
477	*
478	* @sa RTFileQueryFsSizes
479	*/
480	RTR3DECL(int) RTFsQuerySizes(const char pszFsPath, PRTFOFF pcbTotal, RTFOFF pcbFree,
481	uint32_t pcbBlock, uint32_t pcbSector);
482
483	/**
484	* Query the mountpoint of a filesystem.
485	*
486	* @returns iprt status code.
487	* @returns VERR_BUFFER_OVERFLOW if cbMountpoint isn't enough.
488	* @param pszFsPath Path within the mounted filesystem.
489	* @param pszMountpoint Where to store the mountpoint path.
490	* @param cbMountpoint Size of the buffer pointed to by pszMountpoint.
491	*/
492	RTR3DECL(int) RTFsQueryMountpoint(const char pszFsPath, char pszMountpoint, size_t cbMountpoint);
493
494	/**
495	* Query the label of a filesystem.
496	*
497	* @returns iprt status code.
498	* @returns VERR_BUFFER_OVERFLOW if cbLabel isn't enough.
499	* @param pszFsPath Path within the mounted filesystem.
500	* @param pszLabel Where to store the label.
501	* @param cbLabel Size of the buffer pointed to by pszLabel.
502	*/
503	RTR3DECL(int) RTFsQueryLabel(const char pszFsPath, char pszLabel, size_t cbLabel);
504
505	/**
506	* Query the serial number of a filesystem.
507	*
508	* @returns iprt status code.
509	* @param pszFsPath Path within the mounted filesystem.
510	* @param pu32Serial Where to store the serial number.
511	*/
512	RTR3DECL(int) RTFsQuerySerial(const char pszFsPath, uint32_t pu32Serial);
513
514	/**
515	* Query the name of the filesystem driver.
516	*
517	* @returns iprt status code.
518	* @returns VERR_BUFFER_OVERFLOW if cbFsDriver isn't enough.
519	* @param pszFsPath Path within the mounted filesystem.
520	* @param pszFsDriver Where to store the filesystem driver name.
521	* @param cbFsDriver Size of the buffer pointed to by pszFsDriver.
522	*/
523	RTR3DECL(int) RTFsQueryDriver(const char pszFsPath, char pszFsDriver, size_t cbFsDriver);
524
525	/**
526	* Query the name of the filesystem the file is located on.
527	*
528	* @returns iprt status code.
529	* @param pszFsPath Path within the mounted filesystem. It must exist.
530	* In case this is a symlink, the file it refers to is
531	* evaluated.
532	* @param penmType Where to store the filesystem type, this is always
533	* set. See RTFSTYPE for the values.
534	*/
535	RTR3DECL(int) RTFsQueryType(const char *pszFsPath, PRTFSTYPE penmType);
536
537	#endif /* IN_RING3 */
538
539	/**
540	* Gets the name of a filesystem type.
541	*
542	* @returns Pointer to a read-only string containing the name.
543	* @param enmType A valid filesystem ID. If outside the valid range,
544	* the returned string will be pointing to a static
545	* memory buffer which will be changed on subsequent
546	* calls to this function by any thread.
547	*/
548	RTDECL(const char *) RTFsTypeName(RTFSTYPE enmType);
549
550	/**
551	* Filesystem properties.
552	*/
553	typedef struct RTFSPROPERTIES
554	{
555	/** The maximum size of a filesystem object name.
556	* This does not include the '\\0'. */
557	uint32_t cbMaxComponent;
558
559	/** True if the filesystem is remote.
560	* False if the filesystem is local. */
561	bool fRemote;
562
563	/** True if the filesystem is case sensitive.
564	* False if the filesystem is case insensitive. */
565	bool fCaseSensitive;
566
567	/** True if the filesystem is mounted read only.
568	* False if the filesystem is mounted read write. */
569	bool fReadOnly;
570
571	/** True if the filesystem can encode unicode object names.
572	* False if it can't. */
573	bool fSupportsUnicode;
574
575	/** True if the filesystem is compresses.
576	* False if it isn't or we don't know. */
577	bool fCompressed;
578
579	/** True if the filesystem compresses of individual files.
580	* False if it doesn't or we don't know. */
581	bool fFileCompression;
582
583	/** @todo more? */
584	} RTFSPROPERTIES;
585	/** Pointer to a filesystem properties structure. */
586	typedef RTFSPROPERTIES *PRTFSPROPERTIES;
587	/** Pointer to a const filesystem properties structure. */
588	typedef RTFSPROPERTIES const *PCRTFSPROPERTIES;
589
590	#ifdef IN_RING3
591
592	/**
593	* Query the properties of a mounted filesystem.
594	*
595	* @returns iprt status code.
596	* @param pszFsPath Path within the mounted filesystem.
597	* @param pProperties Where to store the properties.
598	*/
599	RTR3DECL(int) RTFsQueryProperties(const char *pszFsPath, PRTFSPROPERTIES pProperties);
600
601	/**
602	* Checks if the given volume is case sensitive or not.
603	*
604	* This may be misleading in some cases as we lack the necessary APIs to query
605	* the information on some system (or choose not to use them) and are instead
606	* returning the general position on case sensitive file name of the system.
607	*
608	* @returns @c true if case sensitive, @c false if not.
609	* @param pszFsPath Path within the mounted file system.
610	*/
611	RTR3DECL(bool) RTFsIsCaseSensitive(const char *pszFsPath);
612
613	/**
614	* Mountpoint enumerator callback.
615	*
616	* @returns iprt status code. Failure terminates the enumeration.
617	* @param pszMountpoint The mountpoint name.
618	* @param pvUser The user argument.
619	*/
620	typedef DECLCALLBACK(int) FNRTFSMOUNTPOINTENUM(const char pszMountpoint, void pvUser);
621	/** Pointer to a FNRTFSMOUNTPOINTENUM(). */
622	typedef FNRTFSMOUNTPOINTENUM *PFNRTFSMOUNTPOINTENUM;
623
624	/**
625	* Enumerate mount points.
626	*
627	* @returns iprt status code.
628	* @param pfnCallback The callback function.
629	* @param pvUser The user argument to the callback.
630	*/
631	RTR3DECL(int) RTFsMountpointsEnum(PFNRTFSMOUNTPOINTENUM pfnCallback, void *pvUser);
632
633
634	#endif /* IN_RING3 */
635
636	/** @} */
637
638	RT_C_DECLS_END
639
640	#endif /* !___iprt_fs_h */
641

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source: vbox/trunk/include/iprt/fs.h@ 68836

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