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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/fuse.h

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  1 /*
  2     This file defines the kernel interface of FUSE
  3     Copyright (C) 2001-2008  Miklos Szeredi <miklos@szeredi.hu>
  4 
  5     This program can be distributed under the terms of the GNU GPL.
  6     See the file COPYING.
  7 
  8     This -- and only this -- header file may also be distributed under
  9     the terms of the BSD Licence as follows:
 10 
 11     Copyright (C) 2001-2007 Miklos Szeredi. All rights reserved.
 12 
 13     Redistribution and use in source and binary forms, with or without
 14     modification, are permitted provided that the following conditions
 15     are met:
 16     1. Redistributions of source code must retain the above copyright
 17        notice, this list of conditions and the following disclaimer.
 18     2. Redistributions in binary form must reproduce the above copyright
 19        notice, this list of conditions and the following disclaimer in the
 20        documentation and/or other materials provided with the distribution.
 21 
 22     THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 23     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 24     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 25     ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 26     FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 27     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 28     OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 29     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 30     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 31     OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 32     SUCH DAMAGE.
 33 */
 34 
 35 /*
 36  * This file defines the kernel interface of FUSE
 37  *
 38  * Protocol changelog:
 39  *
 40  * 7.9:
 41  *  - new fuse_getattr_in input argument of GETATTR
 42  *  - add lk_flags in fuse_lk_in
 43  *  - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
 44  *  - add blksize field to fuse_attr
 45  *  - add file flags field to fuse_read_in and fuse_write_in
 46  *
 47  * 7.10
 48  *  - add nonseekable open flag
 49  *
 50  * 7.11
 51  *  - add IOCTL message
 52  *  - add unsolicited notification support
 53  *  - add POLL message and NOTIFY_POLL notification
 54  *
 55  * 7.12
 56  *  - add umask flag to input argument of open, mknod and mkdir
 57  *  - add notification messages for invalidation of inodes and
 58  *    directory entries
 59  *
 60  * 7.13
 61  *  - make max number of background requests and congestion threshold
 62  *    tunables
 63  *
 64  * 7.14
 65  *  - add splice support to fuse device
 66  *
 67  * 7.15
 68  *  - add store notify
 69  *  - add retrieve notify
 70  *
 71  * 7.16
 72  *  - add BATCH_FORGET request
 73  *  - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct
 74  *    fuse_ioctl_iovec' instead of ambiguous 'struct iovec'
 75  *  - add FUSE_IOCTL_32BIT flag
 76  *
 77  * 7.17
 78  *  - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK
 79  *
 80  * 7.18
 81  *  - add FUSE_IOCTL_DIR flag
 82  *  - add FUSE_NOTIFY_DELETE
 83  *
 84  * 7.19
 85  *  - add FUSE_FALLOCATE
 86  *
 87  * 7.20
 88  *  - add FUSE_AUTO_INVAL_DATA
 89  *
 90  * 7.21
 91  *  - add FUSE_READDIRPLUS
 92  *  - send the requested events in POLL request
 93  *
 94  * 7.22
 95  *  - add FUSE_ASYNC_DIO
 96  *
 97  * 7.23
 98  *  - add FUSE_WRITEBACK_CACHE
 99  *  - add time_gran to fuse_init_out
100  *  - add reserved space to fuse_init_out
101  *  - add FATTR_CTIME
102  *  - add ctime and ctimensec to fuse_setattr_in
103  *  - add FUSE_RENAME2 request
104  *  - add FUSE_NO_OPEN_SUPPORT flag
105  *
106  *  7.24
107  *  - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support
108  *
109  *  7.25
110  *  - add FUSE_PARALLEL_DIROPS
111  */
112 
113 #ifndef _LINUX_FUSE_H
114 #define _LINUX_FUSE_H
115 
116 #ifdef __KERNEL__
117 #include <linux/types.h>
118 #else
119 #include <stdint.h>
120 #endif
121 
122 /*
123  * Version negotiation:
124  *
125  * Both the kernel and userspace send the version they support in the
126  * INIT request and reply respectively.
127  *
128  * If the major versions match then both shall use the smallest
129  * of the two minor versions for communication.
130  *
131  * If the kernel supports a larger major version, then userspace shall
132  * reply with the major version it supports, ignore the rest of the
133  * INIT message and expect a new INIT message from the kernel with a
134  * matching major version.
135  *
136  * If the library supports a larger major version, then it shall fall
137  * back to the major protocol version sent by the kernel for
138  * communication and reply with that major version (and an arbitrary
139  * supported minor version).
140  */
141 
142 /** Version number of this interface */
143 #define FUSE_KERNEL_VERSION 7
144 
145 /** Minor version number of this interface */
146 #define FUSE_KERNEL_MINOR_VERSION 25
147 
148 /** The node ID of the root inode */
149 #define FUSE_ROOT_ID 1
150 
151 /* Make sure all structures are padded to 64bit boundary, so 32bit
152    userspace works under 64bit kernels */
153 
154 struct fuse_attr {
155         uint64_t        ino;
156         uint64_t        size;
157         uint64_t        blocks;
158         uint64_t        atime;
159         uint64_t        mtime;
160         uint64_t        ctime;
161         uint32_t        atimensec;
162         uint32_t        mtimensec;
163         uint32_t        ctimensec;
164         uint32_t        mode;
165         uint32_t        nlink;
166         uint32_t        uid;
167         uint32_t        gid;
168         uint32_t        rdev;
169         uint32_t        blksize;
170         uint32_t        padding;
171 };
172 
173 struct fuse_kstatfs {
174         uint64_t        blocks;
175         uint64_t        bfree;
176         uint64_t        bavail;
177         uint64_t        files;
178         uint64_t        ffree;
179         uint32_t        bsize;
180         uint32_t        namelen;
181         uint32_t        frsize;
182         uint32_t        padding;
183         uint32_t        spare[6];
184 };
185 
186 struct fuse_file_lock {
187         uint64_t        start;
188         uint64_t        end;
189         uint32_t        type;
190         uint32_t        pid; /* tgid */
191 };
192 
193 /**
194  * Bitmasks for fuse_setattr_in.valid
195  */
196 #define FATTR_MODE      (1 << 0)
197 #define FATTR_UID       (1 << 1)
198 #define FATTR_GID       (1 << 2)
199 #define FATTR_SIZE      (1 << 3)
200 #define FATTR_ATIME     (1 << 4)
201 #define FATTR_MTIME     (1 << 5)
202 #define FATTR_FH        (1 << 6)
203 #define FATTR_ATIME_NOW (1 << 7)
204 #define FATTR_MTIME_NOW (1 << 8)
205 #define FATTR_LOCKOWNER (1 << 9)
206 #define FATTR_CTIME     (1 << 10)
207 
208 /**
209  * Flags returned by the OPEN request
210  *
211  * FOPEN_DIRECT_IO: bypass page cache for this open file
212  * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
213  * FOPEN_NONSEEKABLE: the file is not seekable
214  */
215 #define FOPEN_DIRECT_IO         (1 << 0)
216 #define FOPEN_KEEP_CACHE        (1 << 1)
217 #define FOPEN_NONSEEKABLE       (1 << 2)
218 
219 /**
220  * INIT request/reply flags
221  *
222  * FUSE_ASYNC_READ: asynchronous read requests
223  * FUSE_POSIX_LOCKS: remote locking for POSIX file locks
224  * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported)
225  * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
226  * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
227  * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
228  * FUSE_DONT_MASK: don't apply umask to file mode on create operations
229  * FUSE_SPLICE_WRITE: kernel supports splice write on the device
230  * FUSE_SPLICE_MOVE: kernel supports splice move on the device
231  * FUSE_SPLICE_READ: kernel supports splice read on the device
232  * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
233  * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
234  * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
235  * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
236  * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
237  * FUSE_ASYNC_DIO: asynchronous direct I/O submission
238  * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes
239  * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens
240  * FUSE_PARALLEL_DIROPS: allow parallel lookups and readdir
241  */
242 #define FUSE_ASYNC_READ         (1 << 0)
243 #define FUSE_POSIX_LOCKS        (1 << 1)
244 #define FUSE_FILE_OPS           (1 << 2)
245 #define FUSE_ATOMIC_O_TRUNC     (1 << 3)
246 #define FUSE_EXPORT_SUPPORT     (1 << 4)
247 #define FUSE_BIG_WRITES         (1 << 5)
248 #define FUSE_DONT_MASK          (1 << 6)
249 #define FUSE_SPLICE_WRITE       (1 << 7)
250 #define FUSE_SPLICE_MOVE        (1 << 8)
251 #define FUSE_SPLICE_READ        (1 << 9)
252 #define FUSE_FLOCK_LOCKS        (1 << 10)
253 #define FUSE_HAS_IOCTL_DIR      (1 << 11)
254 #define FUSE_AUTO_INVAL_DATA    (1 << 12)
255 #define FUSE_DO_READDIRPLUS     (1 << 13)
256 #define FUSE_READDIRPLUS_AUTO   (1 << 14)
257 #define FUSE_ASYNC_DIO          (1 << 15)
258 #define FUSE_WRITEBACK_CACHE    (1 << 16)
259 #define FUSE_NO_OPEN_SUPPORT    (1 << 17)
260 #define FUSE_PARALLEL_DIROPS    (1 << 18)
261 
262 /**
263  * CUSE INIT request/reply flags
264  *
265  * CUSE_UNRESTRICTED_IOCTL:  use unrestricted ioctl
266  */
267 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
268 
269 /**
270  * Release flags
271  */
272 #define FUSE_RELEASE_FLUSH      (1 << 0)
273 #define FUSE_RELEASE_FLOCK_UNLOCK       (1 << 1)
274 
275 /**
276  * Getattr flags
277  */
278 #define FUSE_GETATTR_FH         (1 << 0)
279 
280 /**
281  * Lock flags
282  */
283 #define FUSE_LK_FLOCK           (1 << 0)
284 
285 /**
286  * WRITE flags
287  *
288  * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
289  * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
290  */
291 #define FUSE_WRITE_CACHE        (1 << 0)
292 #define FUSE_WRITE_LOCKOWNER    (1 << 1)
293 
294 /**
295  * Read flags
296  */
297 #define FUSE_READ_LOCKOWNER     (1 << 1)
298 
299 /**
300  * Ioctl flags
301  *
302  * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
303  * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
304  * FUSE_IOCTL_RETRY: retry with new iovecs
305  * FUSE_IOCTL_32BIT: 32bit ioctl
306  * FUSE_IOCTL_DIR: is a directory
307  *
308  * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
309  */
310 #define FUSE_IOCTL_COMPAT       (1 << 0)
311 #define FUSE_IOCTL_UNRESTRICTED (1 << 1)
312 #define FUSE_IOCTL_RETRY        (1 << 2)
313 #define FUSE_IOCTL_32BIT        (1 << 3)
314 #define FUSE_IOCTL_DIR          (1 << 4)
315 
316 #define FUSE_IOCTL_MAX_IOV      256
317 
318 /**
319  * Poll flags
320  *
321  * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
322  */
323 #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
324 
325 enum fuse_opcode {
326         FUSE_LOOKUP        = 1,
327         FUSE_FORGET        = 2,  /* no reply */
328         FUSE_GETATTR       = 3,
329         FUSE_SETATTR       = 4,
330         FUSE_READLINK      = 5,
331         FUSE_SYMLINK       = 6,
332         FUSE_MKNOD         = 8,
333         FUSE_MKDIR         = 9,
334         FUSE_UNLINK        = 10,
335         FUSE_RMDIR         = 11,
336         FUSE_RENAME        = 12,
337         FUSE_LINK          = 13,
338         FUSE_OPEN          = 14,
339         FUSE_READ          = 15,
340         FUSE_WRITE         = 16,
341         FUSE_STATFS        = 17,
342         FUSE_RELEASE       = 18,
343         FUSE_FSYNC         = 20,
344         FUSE_SETXATTR      = 21,
345         FUSE_GETXATTR      = 22,
346         FUSE_LISTXATTR     = 23,
347         FUSE_REMOVEXATTR   = 24,
348         FUSE_FLUSH         = 25,
349         FUSE_INIT          = 26,
350         FUSE_OPENDIR       = 27,
351         FUSE_READDIR       = 28,
352         FUSE_RELEASEDIR    = 29,
353         FUSE_FSYNCDIR      = 30,
354         FUSE_GETLK         = 31,
355         FUSE_SETLK         = 32,
356         FUSE_SETLKW        = 33,
357         FUSE_ACCESS        = 34,
358         FUSE_CREATE        = 35,
359         FUSE_INTERRUPT     = 36,
360         FUSE_BMAP          = 37,
361         FUSE_DESTROY       = 38,
362         FUSE_IOCTL         = 39,
363         FUSE_POLL          = 40,
364         FUSE_NOTIFY_REPLY  = 41,
365         FUSE_BATCH_FORGET  = 42,
366         FUSE_FALLOCATE     = 43,
367         FUSE_READDIRPLUS   = 44,
368         FUSE_RENAME2       = 45,
369         FUSE_LSEEK         = 46,
370 
371         /* CUSE specific operations */
372         CUSE_INIT          = 4096,
373 };
374 
375 enum fuse_notify_code {
376         FUSE_NOTIFY_POLL   = 1,
377         FUSE_NOTIFY_INVAL_INODE = 2,
378         FUSE_NOTIFY_INVAL_ENTRY = 3,
379         FUSE_NOTIFY_STORE = 4,
380         FUSE_NOTIFY_RETRIEVE = 5,
381         FUSE_NOTIFY_DELETE = 6,
382         FUSE_NOTIFY_CODE_MAX,
383 };
384 
385 /* The read buffer is required to be at least 8k, but may be much larger */
386 #define FUSE_MIN_READ_BUFFER 8192
387 
388 #define FUSE_COMPAT_ENTRY_OUT_SIZE 120
389 
390 struct fuse_entry_out {
391         uint64_t        nodeid;         /* Inode ID */
392         uint64_t        generation;     /* Inode generation: nodeid:gen must
393                                            be unique for the fs's lifetime */
394         uint64_t        entry_valid;    /* Cache timeout for the name */
395         uint64_t        attr_valid;     /* Cache timeout for the attributes */
396         uint32_t        entry_valid_nsec;
397         uint32_t        attr_valid_nsec;
398         struct fuse_attr attr;
399 };
400 
401 struct fuse_forget_in {
402         uint64_t        nlookup;
403 };
404 
405 struct fuse_forget_one {
406         uint64_t        nodeid;
407         uint64_t        nlookup;
408 };
409 
410 struct fuse_batch_forget_in {
411         uint32_t        count;
412         uint32_t        dummy;
413 };
414 
415 struct fuse_getattr_in {
416         uint32_t        getattr_flags;
417         uint32_t        dummy;
418         uint64_t        fh;
419 };
420 
421 #define FUSE_COMPAT_ATTR_OUT_SIZE 96
422 
423 struct fuse_attr_out {
424         uint64_t        attr_valid;     /* Cache timeout for the attributes */
425         uint32_t        attr_valid_nsec;
426         uint32_t        dummy;
427         struct fuse_attr attr;
428 };
429 
430 #define FUSE_COMPAT_MKNOD_IN_SIZE 8
431 
432 struct fuse_mknod_in {
433         uint32_t        mode;
434         uint32_t        rdev;
435         uint32_t        umask;
436         uint32_t        padding;
437 };
438 
439 struct fuse_mkdir_in {
440         uint32_t        mode;
441         uint32_t        umask;
442 };
443 
444 struct fuse_rename_in {
445         uint64_t        newdir;
446 };
447 
448 struct fuse_rename2_in {
449         uint64_t        newdir;
450         uint32_t        flags;
451         uint32_t        padding;
452 };
453 
454 struct fuse_link_in {
455         uint64_t        oldnodeid;
456 };
457 
458 struct fuse_setattr_in {
459         uint32_t        valid;
460         uint32_t        padding;
461         uint64_t        fh;
462         uint64_t        size;
463         uint64_t        lock_owner;
464         uint64_t        atime;
465         uint64_t        mtime;
466         uint64_t        ctime;
467         uint32_t        atimensec;
468         uint32_t        mtimensec;
469         uint32_t        ctimensec;
470         uint32_t        mode;
471         uint32_t        unused4;
472         uint32_t        uid;
473         uint32_t        gid;
474         uint32_t        unused5;
475 };
476 
477 struct fuse_open_in {
478         uint32_t        flags;
479         uint32_t        unused;
480 };
481 
482 struct fuse_create_in {
483         uint32_t        flags;
484         uint32_t        mode;
485         uint32_t        umask;
486         uint32_t        padding;
487 };
488 
489 struct fuse_open_out {
490         uint64_t        fh;
491         uint32_t        open_flags;
492         uint32_t        padding;
493 };
494 
495 struct fuse_release_in {
496         uint64_t        fh;
497         uint32_t        flags;
498         uint32_t        release_flags;
499         uint64_t        lock_owner;
500 };
501 
502 struct fuse_flush_in {
503         uint64_t        fh;
504         uint32_t        unused;
505         uint32_t        padding;
506         uint64_t        lock_owner;
507 };
508 
509 struct fuse_read_in {
510         uint64_t        fh;
511         uint64_t        offset;
512         uint32_t        size;
513         uint32_t        read_flags;
514         uint64_t        lock_owner;
515         uint32_t        flags;
516         uint32_t        padding;
517 };
518 
519 #define FUSE_COMPAT_WRITE_IN_SIZE 24
520 
521 struct fuse_write_in {
522         uint64_t        fh;
523         uint64_t        offset;
524         uint32_t        size;
525         uint32_t        write_flags;
526         uint64_t        lock_owner;
527         uint32_t        flags;
528         uint32_t        padding;
529 };
530 
531 struct fuse_write_out {
532         uint32_t        size;
533         uint32_t        padding;
534 };
535 
536 #define FUSE_COMPAT_STATFS_SIZE 48
537 
538 struct fuse_statfs_out {
539         struct fuse_kstatfs st;
540 };
541 
542 struct fuse_fsync_in {
543         uint64_t        fh;
544         uint32_t        fsync_flags;
545         uint32_t        padding;
546 };
547 
548 struct fuse_setxattr_in {
549         uint32_t        size;
550         uint32_t        flags;
551 };
552 
553 struct fuse_getxattr_in {
554         uint32_t        size;
555         uint32_t        padding;
556 };
557 
558 struct fuse_getxattr_out {
559         uint32_t        size;
560         uint32_t        padding;
561 };
562 
563 struct fuse_lk_in {
564         uint64_t        fh;
565         uint64_t        owner;
566         struct fuse_file_lock lk;
567         uint32_t        lk_flags;
568         uint32_t        padding;
569 };
570 
571 struct fuse_lk_out {
572         struct fuse_file_lock lk;
573 };
574 
575 struct fuse_access_in {
576         uint32_t        mask;
577         uint32_t        padding;
578 };
579 
580 struct fuse_init_in {
581         uint32_t        major;
582         uint32_t        minor;
583         uint32_t        max_readahead;
584         uint32_t        flags;
585 };
586 
587 #define FUSE_COMPAT_INIT_OUT_SIZE 8
588 #define FUSE_COMPAT_22_INIT_OUT_SIZE 24
589 
590 struct fuse_init_out {
591         uint32_t        major;
592         uint32_t        minor;
593         uint32_t        max_readahead;
594         uint32_t        flags;
595         uint16_t        max_background;
596         uint16_t        congestion_threshold;
597         uint32_t        max_write;
598         uint32_t        time_gran;
599         uint32_t        unused[9];
600 };
601 
602 #define CUSE_INIT_INFO_MAX 4096
603 
604 struct cuse_init_in {
605         uint32_t        major;
606         uint32_t        minor;
607         uint32_t        unused;
608         uint32_t        flags;
609 };
610 
611 struct cuse_init_out {
612         uint32_t        major;
613         uint32_t        minor;
614         uint32_t        unused;
615         uint32_t        flags;
616         uint32_t        max_read;
617         uint32_t        max_write;
618         uint32_t        dev_major;              /* chardev major */
619         uint32_t        dev_minor;              /* chardev minor */
620         uint32_t        spare[10];
621 };
622 
623 struct fuse_interrupt_in {
624         uint64_t        unique;
625 };
626 
627 struct fuse_bmap_in {
628         uint64_t        block;
629         uint32_t        blocksize;
630         uint32_t        padding;
631 };
632 
633 struct fuse_bmap_out {
634         uint64_t        block;
635 };
636 
637 struct fuse_ioctl_in {
638         uint64_t        fh;
639         uint32_t        flags;
640         uint32_t        cmd;
641         uint64_t        arg;
642         uint32_t        in_size;
643         uint32_t        out_size;
644 };
645 
646 struct fuse_ioctl_iovec {
647         uint64_t        base;
648         uint64_t        len;
649 };
650 
651 struct fuse_ioctl_out {
652         int32_t         result;
653         uint32_t        flags;
654         uint32_t        in_iovs;
655         uint32_t        out_iovs;
656 };
657 
658 struct fuse_poll_in {
659         uint64_t        fh;
660         uint64_t        kh;
661         uint32_t        flags;
662         uint32_t        events;
663 };
664 
665 struct fuse_poll_out {
666         uint32_t        revents;
667         uint32_t        padding;
668 };
669 
670 struct fuse_notify_poll_wakeup_out {
671         uint64_t        kh;
672 };
673 
674 struct fuse_fallocate_in {
675         uint64_t        fh;
676         uint64_t        offset;
677         uint64_t        length;
678         uint32_t        mode;
679         uint32_t        padding;
680 };
681 
682 struct fuse_in_header {
683         uint32_t        len;
684         uint32_t        opcode;
685         uint64_t        unique;
686         uint64_t        nodeid;
687         uint32_t        uid;
688         uint32_t        gid;
689         uint32_t        pid;
690         uint32_t        padding;
691 };
692 
693 struct fuse_out_header {
694         uint32_t        len;
695         int32_t         error;
696         uint64_t        unique;
697 };
698 
699 struct fuse_dirent {
700         uint64_t        ino;
701         uint64_t        off;
702         uint32_t        namelen;
703         uint32_t        type;
704         char name[];
705 };
706 
707 #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
708 #define FUSE_DIRENT_ALIGN(x) \
709         (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
710 #define FUSE_DIRENT_SIZE(d) \
711         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
712 
713 struct fuse_direntplus {
714         struct fuse_entry_out entry_out;
715         struct fuse_dirent dirent;
716 };
717 
718 #define FUSE_NAME_OFFSET_DIRENTPLUS \
719         offsetof(struct fuse_direntplus, dirent.name)
720 #define FUSE_DIRENTPLUS_SIZE(d) \
721         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
722 
723 struct fuse_notify_inval_inode_out {
724         uint64_t        ino;
725         int64_t         off;
726         int64_t         len;
727 };
728 
729 struct fuse_notify_inval_entry_out {
730         uint64_t        parent;
731         uint32_t        namelen;
732         uint32_t        padding;
733 };
734 
735 struct fuse_notify_delete_out {
736         uint64_t        parent;
737         uint64_t        child;
738         uint32_t        namelen;
739         uint32_t        padding;
740 };
741 
742 struct fuse_notify_store_out {
743         uint64_t        nodeid;
744         uint64_t        offset;
745         uint32_t        size;
746         uint32_t        padding;
747 };
748 
749 struct fuse_notify_retrieve_out {
750         uint64_t        notify_unique;
751         uint64_t        nodeid;
752         uint64_t        offset;
753         uint32_t        size;
754         uint32_t        padding;
755 };
756 
757 /* Matches the size of fuse_write_in */
758 struct fuse_notify_retrieve_in {
759         uint64_t        dummy1;
760         uint64_t        offset;
761         uint32_t        size;
762         uint32_t        dummy2;
763         uint64_t        dummy3;
764         uint64_t        dummy4;
765 };
766 
767 /* Device ioctls: */
768 #define FUSE_DEV_IOC_CLONE      _IOR(229, 0, uint32_t)
769 
770 struct fuse_lseek_in {
771         uint64_t        fh;
772         uint64_t        offset;
773         uint32_t        whence;
774         uint32_t        padding;
775 };
776 
777 struct fuse_lseek_out {
778         uint64_t        offset;
779 };
780 
781 #endif /* _LINUX_FUSE_H */
782 

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