fs.h@ 96550

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1	/** @file
2	* IPRT - Filesystem.
3	*/
4
5	/*
6	* Copyright (C) 2006-2022 Oracle and/or its affiliates.
7	*
8	* This file is part of VirtualBox base platform packages, as
9	* available from https://www.virtualbox.org.
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU General Public License
13	* as published by the Free Software Foundation, in version 3 of the
14	* License.
15	*
16	* This program is distributed in the hope that it will be useful, but
17	* WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with this program; if not, see <https://www.gnu.org/licenses>.
23	*
24	* The contents of this file may alternatively be used under the terms
25	* of the Common Development and Distribution License Version 1.0
26	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27	* in the VirtualBox distribution, in which case the provisions of the
28	* CDDL are applicable instead of those of the GPL.
29	*
30	* You may elect to license modified versions of this file under the
31	* terms and conditions of either the GPL or the CDDL or both.
32	*
33	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34	*/
35
36	#ifndef IPRT_INCLUDED_fs_h
37	#define IPRT_INCLUDED_fs_h
38	#ifndef RT_WITHOUT_PRAGMA_ONCE
39	# pragma once
40	#endif
41
42	#include <iprt/cdefs.h>
43	#include <iprt/types.h>
44	#include <iprt/time.h>
45
46
47	RT_C_DECLS_BEGIN
48
49	/** @defgroup grp_rt_fs RTFs - Filesystem and Volume
50	* @ingroup grp_rt
51	* @{
52	*/
53
54
55	/** @name Filesystem Object Mode Flags.
56	*
57	* There are two sets of flags: the unix mode flags and the dos attributes.
58	*
59	* APIs returning mode flags will provide both sets.
60	*
61	* When specifying mode flags to any API at least one of them must be given. If
62	* one set is missing the API will synthesize it from the one given if it
63	* requires it.
64	*
65	* Both sets match their x86 ABIs, the DOS/NT one is simply shifted up 16 bits.
66	* The DOS/NT range is bits 16 to 31 inclusively. The Unix range is bits 0 to 15
67	* (inclusively).
68	*
69	* @remarks These constants have been comitted to a binary format and must not
70	* be changed in any incompatible ways.
71	*
72	* @{
73	*/
74
75	/** Set user id on execution (S_ISUID). */
76	#define RTFS_UNIX_ISUID 0004000U
77	/** Set group id on execution (S_ISGID). */
78	#define RTFS_UNIX_ISGID 0002000U
79	/** Sticky bit (S_ISVTX / S_ISTXT). */
80	#define RTFS_UNIX_ISTXT 0001000U
81
82	/** Owner RWX mask (S_IRWXU). */
83	#define RTFS_UNIX_IRWXU 0000700U
84	/** Owner readable (S_IRUSR). */
85	#define RTFS_UNIX_IRUSR 0000400U
86	/** Owner writable (S_IWUSR). */
87	#define RTFS_UNIX_IWUSR 0000200U
88	/** Owner executable (S_IXUSR). */
89	#define RTFS_UNIX_IXUSR 0000100U
90
91	/** Group RWX mask (S_IRWXG). */
92	#define RTFS_UNIX_IRWXG 0000070U
93	/** Group readable (S_IRGRP). */
94	#define RTFS_UNIX_IRGRP 0000040U
95	/** Group writable (S_IWGRP). */
96	#define RTFS_UNIX_IWGRP 0000020U
97	/** Group executable (S_IXGRP). */
98	#define RTFS_UNIX_IXGRP 0000010U
99
100	/** Other RWX mask (S_IRWXO). */
101	#define RTFS_UNIX_IRWXO 0000007U
102	/** Other readable (S_IROTH). */
103	#define RTFS_UNIX_IROTH 0000004U
104	/** Other writable (S_IWOTH). */
105	#define RTFS_UNIX_IWOTH 0000002U
106	/** Other executable (S_IXOTH). */
107	#define RTFS_UNIX_IXOTH 0000001U
108
109	/** All UNIX access permission bits (0777). */
110	#define RTFS_UNIX_ALL_ACCESS_PERMS 0000777U
111	/** All UNIX permission bits, including set id and sticky bits. */
112	#define RTFS_UNIX_ALL_PERMS 0007777U
113
114	/** Named pipe (fifo) (S_IFIFO). */
115	#define RTFS_TYPE_FIFO 0010000U
116	/** Character device (S_IFCHR). */
117	#define RTFS_TYPE_DEV_CHAR 0020000U
118	/** Directory (S_IFDIR). */
119	#define RTFS_TYPE_DIRECTORY 0040000U
120	/** Block device (S_IFBLK). */
121	#define RTFS_TYPE_DEV_BLOCK 0060000U
122	/** Regular file (S_IFREG). */
123	#define RTFS_TYPE_FILE 0100000U
124	/** Symbolic link (S_IFLNK). */
125	#define RTFS_TYPE_SYMLINK 0120000U
126	/** Socket (S_IFSOCK). */
127	#define RTFS_TYPE_SOCKET 0140000U
128	/** Whiteout (S_IFWHT). */
129	#define RTFS_TYPE_WHITEOUT 0160000U
130	/** Type mask (S_IFMT). */
131	#define RTFS_TYPE_MASK 0170000U
132	/** The shift count to convert between RTFS_TYPE_MASK and DIRENTRYTYPE. */
133	#define RTFS_TYPE_DIRENTRYTYPE_SHIFT 12
134
135	/** Unix attribute mask. */
136	#define RTFS_UNIX_MASK 0xffffU
137	/** The mask of all the NT, OS/2 and DOS attributes. */
138	#define RTFS_DOS_MASK (0x7fffU << RTFS_DOS_SHIFT)
139
140	/** The shift value. */
141	#define RTFS_DOS_SHIFT 16
142	/** The mask of the OS/2 and DOS attributes. */
143	#define RTFS_DOS_MASK_OS2 (0x003fU << RTFS_DOS_SHIFT)
144	/** The mask of the NT attributes. */
145	#define RTFS_DOS_MASK_NT (0x7fffU << RTFS_DOS_SHIFT)
146
147	/** Readonly object. */
148	#define RTFS_DOS_READONLY (0x0001U << RTFS_DOS_SHIFT)
149	/** Hidden object. */
150	#define RTFS_DOS_HIDDEN (0x0002U << RTFS_DOS_SHIFT)
151	/** System object. */
152	#define RTFS_DOS_SYSTEM (0x0004U << RTFS_DOS_SHIFT)
153	/** Directory. */
154	#define RTFS_DOS_DIRECTORY (0x0010U << RTFS_DOS_SHIFT)
155	/** Archived object.
156	* This bit is set by the filesystem after each modification of a file. */
157	#define RTFS_DOS_ARCHIVED (0x0020U << RTFS_DOS_SHIFT)
158	/** Undocumented / Reserved, used to be the FAT volume label. */
159	#define RTFS_DOS_NT_DEVICE (0x0040U << RTFS_DOS_SHIFT)
160	/** Normal object, no other attribute set (NT). */
161	#define RTFS_DOS_NT_NORMAL (0x0080U << RTFS_DOS_SHIFT)
162	/** Temporary object (NT). */
163	#define RTFS_DOS_NT_TEMPORARY (0x0100U << RTFS_DOS_SHIFT)
164	/** Sparse file (NT). */
165	#define RTFS_DOS_NT_SPARSE_FILE (0x0200U << RTFS_DOS_SHIFT)
166	/** Reparse point (NT). */
167	#define RTFS_DOS_NT_REPARSE_POINT (0x0400U << RTFS_DOS_SHIFT)
168	/** Compressed object (NT).
169	* For a directory, compression is the default for new files. */
170	#define RTFS_DOS_NT_COMPRESSED (0x0800U << RTFS_DOS_SHIFT)
171	/** Physically offline data (NT).
172	* MSDN say, don't mess with this one. */
173	#define RTFS_DOS_NT_OFFLINE (0x1000U << RTFS_DOS_SHIFT)
174	/** Not content indexed by the content indexing service (NT). */
175	#define RTFS_DOS_NT_NOT_CONTENT_INDEXED (0x2000U << RTFS_DOS_SHIFT)
176	/** Encryped object (NT).
177	* For a directory, encrypted is the default for new files. */
178	#define RTFS_DOS_NT_ENCRYPTED (0x4000U << RTFS_DOS_SHIFT)
179
180	/** @} */
181
182
183	/** @name Filesystem Object Type Predicates.
184	* @{ */
185	/** Checks the mode flags indicate a named pipe (fifo) (S_ISFIFO). */
186	#define RTFS_IS_FIFO(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_FIFO )
187	/** Checks the mode flags indicate a character device (S_ISCHR). */
188	#define RTFS_IS_DEV_CHAR(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DEV_CHAR )
189	/** Checks the mode flags indicate a directory (S_ISDIR). */
190	#define RTFS_IS_DIRECTORY(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DIRECTORY )
191	/** Checks the mode flags indicate a block device (S_ISBLK). */
192	#define RTFS_IS_DEV_BLOCK(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_DEV_BLOCK )
193	/** Checks the mode flags indicate a regular file (S_ISREG). */
194	#define RTFS_IS_FILE(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_FILE )
195	/** Checks the mode flags indicate a symbolic link (S_ISLNK). */
196	#define RTFS_IS_SYMLINK(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_SYMLINK )
197	/** Checks the mode flags indicate a socket (S_ISSOCK). */
198	#define RTFS_IS_SOCKET(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_SOCKET )
199	/** Checks the mode flags indicate a whiteout (S_ISWHT). */
200	#define RTFS_IS_WHITEOUT(fMode) ( ((fMode) & RTFS_TYPE_MASK) == RTFS_TYPE_WHITEOUT )
201	/** @} */
202
203
204	/**
205	* Filesystem type IDs returned by RTFsQueryType.
206	*
207	* This enum is subject to changes and must not be used as part of any ABI or
208	* binary format (file, network, etc).
209	*
210	* @remarks When adding new entries, please update RTFsTypeName(). Also, try
211	* add them to the most natural group.
212	*/
213	typedef enum RTFSTYPE
214	{
215	/** Unknown file system. */
216	RTFSTYPE_UNKNOWN = 0,
217
218	/** Universal Disk Format. */
219	RTFSTYPE_UDF,
220	/** ISO 9660, aka Compact Disc File System (CDFS). */
221	RTFSTYPE_ISO9660,
222	/** Filesystem in Userspace. */
223	RTFSTYPE_FUSE,
224	/** VirtualBox shared folders. */
225	RTFSTYPE_VBOXSHF,
226
227	/* Linux: */
228	RTFSTYPE_EXT,
229	RTFSTYPE_EXT2,
230	RTFSTYPE_EXT3,
231	RTFSTYPE_EXT4,
232	RTFSTYPE_XFS,
233	RTFSTYPE_CIFS,
234	RTFSTYPE_SMBFS,
235	RTFSTYPE_TMPFS,
236	RTFSTYPE_SYSFS,
237	RTFSTYPE_PROC,
238	RTFSTYPE_OCFS2,
239	RTFSTYPE_BTRFS,
240
241	/* Windows: */
242	/** New Technology File System. */
243	RTFSTYPE_NTFS,
244	/** FAT12, FAT16 and FAT32 lumped into one basket.
245	* The partition size limit of FAT12 and FAT16 will be the factor
246	* limiting the file size (except, perhaps for the 64KB cluster case on
247	* non-Windows hosts). */
248	RTFSTYPE_FAT,
249	/** Extended File Allocation Table, main target are flash drives. */
250	RTFSTYPE_EXFAT,
251	/** Resilient File System. */
252	RTFSTYPE_REFS,
253
254	/* Solaris: */
255	/** Zettabyte File System. */
256	RTFSTYPE_ZFS,
257	/** Unix File System. */
258	RTFSTYPE_UFS,
259	/** Network File System. */
260	RTFSTYPE_NFS,
261
262	/* Mac OS X: */
263	/** Hierarchical File System. */
264	RTFSTYPE_HFS,
265	/** @todo RTFSTYPE_HFS_PLUS? */
266	RTFSTYPE_APFS,
267	RTFSTYPE_AUTOFS,
268	RTFSTYPE_DEVFS,
269
270	/* BSD: /
271
272	/* OS/2: */
273	/** High Performance File System. */
274	RTFSTYPE_HPFS,
275	/** Journaled File System (v2). */
276	RTFSTYPE_JFS,
277
278	/** The end of valid Filesystem types IDs. */
279	RTFSTYPE_END,
280	/** The usual 32-bit type blow up. */
281	RTFSTYPE_32BIT_HACK = 0x7fffffff
282	} RTFSTYPE;
283	/** Pointer to a Filesystem type ID. */
284	typedef RTFSTYPE *PRTFSTYPE;
285
286
287	/**
288	* The available additional information in a RTFSOBJATTR object.
289	*/
290	typedef enum RTFSOBJATTRADD
291	{
292	/** No additional information is available / requested. */
293	RTFSOBJATTRADD_NOTHING = 1,
294	/** The additional unix attributes (RTFSOBJATTR::u::Unix) are available /
295	* requested. */
296	RTFSOBJATTRADD_UNIX,
297	/** The additional unix attributes (RTFSOBJATTR::u::UnixOwner) are
298	* available / requested. */
299	RTFSOBJATTRADD_UNIX_OWNER,
300	/** The additional unix attributes (RTFSOBJATTR::u::UnixGroup) are
301	* available / requested. */
302	RTFSOBJATTRADD_UNIX_GROUP,
303	/** The additional extended attribute size (RTFSOBJATTR::u::EASize) is available / requested. */
304	RTFSOBJATTRADD_EASIZE,
305	/** The last valid item (inclusive).
306	* The valid range is RTFSOBJATTRADD_NOTHING thru RTFSOBJATTRADD_LAST. */
307	RTFSOBJATTRADD_LAST = RTFSOBJATTRADD_EASIZE,
308
309	/** The usual 32-bit hack. */
310	RTFSOBJATTRADD_32BIT_SIZE_HACK = 0x7fffffff
311	} RTFSOBJATTRADD;
312
313	/** The number of bytes reserved for the additional attribute union. */
314	#define RTFSOBJATTRUNION_MAX_SIZE 128
315
316	/**
317	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX).
318	*/
319	typedef struct RTFSOBJATTRUNIX
320	{
321	/** The user owning the filesystem object (st_uid).
322	* This field is NIL_RTUID if not supported. */
323	RTUID uid;
324
325	/** The group the filesystem object is assigned (st_gid).
326	* This field is NIL_RTGID if not supported. */
327	RTGID gid;
328
329	/** Number of hard links to this filesystem object (st_nlink).
330	* This field is 1 if the filesystem doesn't support hardlinking or
331	* the information isn't available.
332	*/
333	uint32_t cHardlinks;
334
335	/** The device number of the device which this filesystem object resides on (st_dev).
336	* This field is 0 if this information is not available. */
337	RTDEV INodeIdDevice;
338
339	/** The unique identifier (within the filesystem) of this filesystem object (st_ino).
340	* Together with INodeIdDevice, this field can be used as a OS wide unique id
341	* when both their values are not 0.
342	* This field is 0 if the information is not available.
343	*
344	* @remarks The special '..' dir always shows up with 0 on NTFS/Windows. */
345	RTINODE INodeId;
346
347	/** User flags (st_flags).
348	* This field is 0 if this information is not available. */
349	uint32_t fFlags;
350
351	/** The current generation number (st_gen).
352	* This field is 0 if this information is not available. */
353	uint32_t GenerationId;
354
355	/** The device number of a character or block device type object (st_rdev).
356	* This field is 0 if the file isn't of a character or block device type and
357	* when the OS doesn't subscribe to the major+minor device idenfication scheme. */
358	RTDEV Device;
359	} RTFSOBJATTRUNIX;
360
361
362	/**
363	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX_OWNER).
364	*
365	* @remarks This interface is mainly for TAR.
366	*/
367	typedef struct RTFSOBJATTRUNIXOWNER
368	{
369	/** The user owning the filesystem object (st_uid).
370	* This field is NIL_UID if not supported. */
371	RTUID uid;
372	/** The user name.
373	* Empty if not available or not supported, truncated if too long. */
374	char szName[RTFSOBJATTRUNION_MAX_SIZE - sizeof(RTUID)];
375	} RTFSOBJATTRUNIXOWNER;
376
377
378	/**
379	* Additional Unix Attributes (RTFSOBJATTRADD_UNIX_GROUP).
380	*
381	* @remarks This interface is mainly for TAR.
382	*/
383	typedef struct RTFSOBJATTRUNIXGROUP
384	{
385	/** The user owning the filesystem object (st_uid).
386	* This field is NIL_GID if not supported. */
387	RTGID gid;
388	/** The group name.
389	* Empty if not available or not supported, truncated if too long. */
390	char szName[RTFSOBJATTRUNION_MAX_SIZE - sizeof(RTGID)];
391	} RTFSOBJATTRUNIXGROUP;
392
393
394	/**
395	* Filesystem object attributes.
396	*/
397	typedef struct RTFSOBJATTR
398	{
399	/** Mode flags (st_mode). RTFS_UNIX_, RTFS_TYPE_, and RTFS_DOS_. /
400	RTFMODE fMode;
401
402	/** The additional attributes available. */
403	RTFSOBJATTRADD enmAdditional;
404
405	/**
406	* Additional attributes.
407	*
408	* Unless explicitly specified to an API, the API can provide additional
409	* data as it is provided by the underlying OS.
410	*/
411	union RTFSOBJATTRUNION
412	{
413	/** Additional Unix Attributes - RTFSOBJATTRADD_UNIX. */
414	RTFSOBJATTRUNIX Unix;
415	/** Additional Unix Owner Attributes - RTFSOBJATTRADD_UNIX_OWNER. */
416	RTFSOBJATTRUNIXOWNER UnixOwner;
417	/** Additional Unix Group Attributes - RTFSOBJATTRADD_UNIX_GROUP. */
418	RTFSOBJATTRUNIXGROUP UnixGroup;
419
420	/**
421	* Extended attribute size is available when RTFS_DOS_HAVE_EA_SIZE is set.
422	*/
423	struct RTFSOBJATTREASIZE
424	{
425	/** Size of EAs. */
426	RTFOFF cb;
427	} EASize;
428	/** Reserved space. */
429	uint8_t abReserveSpace[128];
430	} u;
431	} RTFSOBJATTR;
432	/** Pointer to a filesystem object attributes structure. */
433	typedef RTFSOBJATTR *PRTFSOBJATTR;
434	/** Pointer to a const filesystem object attributes structure. */
435	typedef const RTFSOBJATTR *PCRTFSOBJATTR;
436
437
438	/**
439	* Filesystem object information structure.
440	*
441	* This is returned by the RTPathQueryInfo(), RTFileQueryInfo() and RTDirRead() APIs.
442	*/
443	typedef struct RTFSOBJINFO
444	{
445	/** Logical size (st_size).
446	* For normal files this is the size of the file.
447	* For symbolic links, this is the length of the path name contained
448	* in the symbolic link.
449	* For other objects this fields needs to be specified.
450	*/
451	RTFOFF cbObject;
452
453	/** Disk allocation size (st_blocks * DEV_BSIZE). */
454	RTFOFF cbAllocated;
455
456	/** Time of last access (st_atime). */
457	RTTIMESPEC AccessTime;
458
459	/** Time of last data modification (st_mtime). */
460	RTTIMESPEC ModificationTime;
461
462	/** Time of last status change (st_ctime).
463	* If not available this is set to ModificationTime.
464	*/
465	RTTIMESPEC ChangeTime;
466
467	/** Time of file birth (st_birthtime).
468	* If not available this is set to ChangeTime.
469	*/
470	RTTIMESPEC BirthTime;
471
472	/** Attributes. */
473	RTFSOBJATTR Attr;
474
475	} RTFSOBJINFO;
476	/** Pointer to a filesystem object information structure. */
477	typedef RTFSOBJINFO *PRTFSOBJINFO;
478	/** Pointer to a const filesystem object information structure. */
479	typedef const RTFSOBJINFO *PCRTFSOBJINFO;
480
481
482	#ifdef IN_RING3
483
484	/**
485	* Query the sizes of a filesystem.
486	*
487	* @returns iprt status code.
488	* @param pszFsPath Path within the mounted filesystem.
489	* @param pcbTotal Where to store the total filesystem space. (Optional)
490	* @param pcbFree Where to store the remaining free space in the filesystem. (Optional)
491	* @param pcbBlock Where to store the block size. (Optional)
492	* @param pcbSector Where to store the sector size. (Optional)
493	*
494	* @sa RTFileQueryFsSizes
495	*/
496	RTR3DECL(int) RTFsQuerySizes(const char pszFsPath, PRTFOFF pcbTotal, RTFOFF pcbFree,
497	uint32_t pcbBlock, uint32_t pcbSector);
498
499	/**
500	* Query the mountpoint of a filesystem.
501	*
502	* @returns iprt status code.
503	* @returns VERR_BUFFER_OVERFLOW if cbMountpoint isn't enough.
504	* @param pszFsPath Path within the mounted filesystem.
505	* @param pszMountpoint Where to store the mountpoint path.
506	* @param cbMountpoint Size of the buffer pointed to by pszMountpoint.
507	*/
508	RTR3DECL(int) RTFsQueryMountpoint(const char pszFsPath, char pszMountpoint, size_t cbMountpoint);
509
510	/**
511	* Query the label of a filesystem.
512	*
513	* @returns iprt status code.
514	* @returns VERR_BUFFER_OVERFLOW if cbLabel isn't enough.
515	* @param pszFsPath Path within the mounted filesystem.
516	* @param pszLabel Where to store the label.
517	* @param cbLabel Size of the buffer pointed to by pszLabel.
518	*/
519	RTR3DECL(int) RTFsQueryLabel(const char pszFsPath, char pszLabel, size_t cbLabel);
520
521	/**
522	* Query the serial number of a filesystem.
523	*
524	* @returns iprt status code.
525	* @param pszFsPath Path within the mounted filesystem.
526	* @param pu32Serial Where to store the serial number.
527	*/
528	RTR3DECL(int) RTFsQuerySerial(const char pszFsPath, uint32_t pu32Serial);
529
530	/**
531	* Query the name of the filesystem driver.
532	*
533	* @returns iprt status code.
534	* @returns VERR_BUFFER_OVERFLOW if cbFsDriver isn't enough.
535	* @param pszFsPath Path within the mounted filesystem.
536	* @param pszFsDriver Where to store the filesystem driver name.
537	* @param cbFsDriver Size of the buffer pointed to by pszFsDriver.
538	*/
539	RTR3DECL(int) RTFsQueryDriver(const char pszFsPath, char pszFsDriver, size_t cbFsDriver);
540
541	/**
542	* Query the name of the filesystem the file is located on.
543	*
544	* @returns iprt status code.
545	* @param pszFsPath Path within the mounted filesystem. It must exist.
546	* In case this is a symlink, the file it refers to is
547	* evaluated.
548	* @param penmType Where to store the filesystem type, this is always
549	* set. See RTFSTYPE for the values.
550	*/
551	RTR3DECL(int) RTFsQueryType(const char *pszFsPath, PRTFSTYPE penmType);
552
553	#endif /* IN_RING3 */
554
555	/**
556	* Gets the name of a filesystem type.
557	*
558	* @returns Pointer to a read-only string containing the name.
559	* @param enmType A valid filesystem ID. If outside the valid range,
560	* the returned string will be pointing to a static
561	* memory buffer which will be changed on subsequent
562	* calls to this function by any thread.
563	*/
564	RTDECL(const char *) RTFsTypeName(RTFSTYPE enmType);
565
566	/**
567	* Filesystem properties.
568	*/
569	typedef struct RTFSPROPERTIES
570	{
571	/** The maximum size of a filesystem object name.
572	* This does not include the '\\0'. */
573	uint32_t cbMaxComponent;
574
575	/** True if the filesystem is remote.
576	* False if the filesystem is local. */
577	bool fRemote;
578
579	/** True if the filesystem is case sensitive.
580	* False if the filesystem is case insensitive. */
581	bool fCaseSensitive;
582
583	/** True if the filesystem is mounted read only.
584	* False if the filesystem is mounted read write. */
585	bool fReadOnly;
586
587	/** True if the filesystem can encode unicode object names.
588	* False if it can't. */
589	bool fSupportsUnicode;
590
591	/** True if the filesystem is compressed.
592	* False if it isn't or we don't know. */
593	bool fCompressed;
594
595	/** True if the filesystem compresses of individual files.
596	* False if it doesn't or we don't know. */
597	bool fFileCompression;
598
599	/** @todo more? */
600	} RTFSPROPERTIES;
601	/** Pointer to a filesystem properties structure. */
602	typedef RTFSPROPERTIES *PRTFSPROPERTIES;
603	/** Pointer to a const filesystem properties structure. */
604	typedef RTFSPROPERTIES const *PCRTFSPROPERTIES;
605
606	#ifdef IN_RING3
607
608	/**
609	* Query the properties of a mounted filesystem.
610	*
611	* @returns iprt status code.
612	* @param pszFsPath Path within the mounted filesystem.
613	* @param pProperties Where to store the properties.
614	*/
615	RTR3DECL(int) RTFsQueryProperties(const char *pszFsPath, PRTFSPROPERTIES pProperties);
616
617	/**
618	* Checks if the given volume is case sensitive or not.
619	*
620	* This may be misleading in some cases as we lack the necessary APIs to query
621	* the information on some system (or choose not to use them) and are instead
622	* returning the general position on case sensitive file name of the system.
623	*
624	* @returns @c true if case sensitive, @c false if not.
625	* @param pszFsPath Path within the mounted file system.
626	*/
627	RTR3DECL(bool) RTFsIsCaseSensitive(const char *pszFsPath);
628
629	/**
630	* Mountpoint enumerator callback.
631	*
632	* @returns iprt status code. Failure terminates the enumeration.
633	* @param pszMountpoint The mountpoint name.
634	* @param pvUser The user argument.
635	*/
636	typedef DECLCALLBACKTYPE(int, FNRTFSMOUNTPOINTENUM,(const char pszMountpoint, void pvUser));
637	/** Pointer to a FNRTFSMOUNTPOINTENUM(). */
638	typedef FNRTFSMOUNTPOINTENUM *PFNRTFSMOUNTPOINTENUM;
639
640	/**
641	* Enumerate mount points.
642	*
643	* @returns iprt status code.
644	* @param pfnCallback The callback function.
645	* @param pvUser The user argument to the callback.
646	*/
647	RTR3DECL(int) RTFsMountpointsEnum(PFNRTFSMOUNTPOINTENUM pfnCallback, void *pvUser);
648
649
650	/**
651	* A /bin/ls clone.
652	*
653	* @returns Program exit code.
654	*
655	* @param cArgs The number of arguments.
656	* @param papszArgs The argument vector. (Note that this may be
657	* reordered, so the memory must be writable.)
658	*/
659	RTR3DECL(RTEXITCODE) RTFsCmdLs(unsigned cArgs, char **papszArgs);
660
661	#endif /* IN_RING3 */
662
663	/** @} */
664
665	RT_C_DECLS_END
666
667	#endif /* !IPRT_INCLUDED_fs_h */
668

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source: vbox/trunk/include/iprt/fs.h@ 96550

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