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Commit | Line | Data |
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d8a5ba45 MS |
1 | /* |
2 | FUSE: Filesystem in Userspace | |
1f55ed06 | 3 | Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu> |
d8a5ba45 MS |
4 | |
5 | This program can be distributed under the terms of the GNU GPL. | |
6 | See the file COPYING. | |
7 | */ | |
8 | ||
c79e322f MS |
9 | /* |
10 | * This file defines the kernel interface of FUSE | |
11 | * | |
12 | * Protocol changelog: | |
13 | * | |
14 | * 7.9: | |
15 | * - new fuse_getattr_in input argument of GETATTR | |
a9ff4f87 | 16 | * - add lk_flags in fuse_lk_in |
f3332114 | 17 | * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in |
0e9663ee | 18 | * - add blksize field to fuse_attr |
a6643094 | 19 | * - add file flags field to fuse_read_in and fuse_write_in |
a7c1b990 TH |
20 | * |
21 | * 7.10 | |
22 | * - add nonseekable open flag | |
1f55ed06 MS |
23 | * |
24 | * 7.11 | |
25 | * - add IOCTL message | |
26 | * - add unsolicited notification support | |
27 | * - add POLL message and NOTIFY_POLL notification | |
e0a43ddc MS |
28 | * |
29 | * 7.12 | |
30 | * - add umask flag to input argument of open, mknod and mkdir | |
3b463ae0 JM |
31 | * - add notification messages for invalidation of inodes and |
32 | * directory entries | |
7a6d3c8b CH |
33 | * |
34 | * 7.13 | |
35 | * - make max number of background requests and congestion threshold | |
36 | * tunables | |
dd3bb14f MS |
37 | * |
38 | * 7.14 | |
39 | * - add splice support to fuse device | |
a1d75f25 MS |
40 | * |
41 | * 7.15 | |
42 | * - add store notify | |
2d45ba38 | 43 | * - add retrieve notify |
02c048b9 MS |
44 | * |
45 | * 7.16 | |
46 | * - add BATCH_FORGET request | |
1baa26b2 MS |
47 | * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct |
48 | * fuse_ioctl_iovec' instead of ambiguous 'struct iovec' | |
49 | * - add FUSE_IOCTL_32BIT flag | |
37fb3a30 MS |
50 | * |
51 | * 7.17 | |
52 | * - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK | |
b18da0c5 MS |
53 | * |
54 | * 7.18 | |
55 | * - add FUSE_IOCTL_DIR flag | |
451d0f59 | 56 | * - add FUSE_NOTIFY_DELETE |
05ba1f08 AP |
57 | * |
58 | * 7.19 | |
59 | * - add FUSE_FALLOCATE | |
72d0d248 BF |
60 | * |
61 | * 7.20 | |
62 | * - add FUSE_AUTO_INVAL_DATA | |
c79e322f | 63 | */ |
d8a5ba45 | 64 | |
29d434b3 TH |
65 | #ifndef _LINUX_FUSE_H |
66 | #define _LINUX_FUSE_H | |
67 | ||
1f55ed06 | 68 | #include <linux/types.h> |
d8a5ba45 | 69 | |
37d217f0 MS |
70 | /* |
71 | * Version negotiation: | |
72 | * | |
73 | * Both the kernel and userspace send the version they support in the | |
74 | * INIT request and reply respectively. | |
75 | * | |
76 | * If the major versions match then both shall use the smallest | |
77 | * of the two minor versions for communication. | |
78 | * | |
79 | * If the kernel supports a larger major version, then userspace shall | |
80 | * reply with the major version it supports, ignore the rest of the | |
81 | * INIT message and expect a new INIT message from the kernel with a | |
82 | * matching major version. | |
83 | * | |
84 | * If the library supports a larger major version, then it shall fall | |
85 | * back to the major protocol version sent by the kernel for | |
86 | * communication and reply with that major version (and an arbitrary | |
87 | * supported minor version). | |
88 | */ | |
89 | ||
d8a5ba45 | 90 | /** Version number of this interface */ |
9e6268db | 91 | #define FUSE_KERNEL_VERSION 7 |
d8a5ba45 MS |
92 | |
93 | /** Minor version number of this interface */ | |
72d0d248 | 94 | #define FUSE_KERNEL_MINOR_VERSION 20 |
d8a5ba45 MS |
95 | |
96 | /** The node ID of the root inode */ | |
97 | #define FUSE_ROOT_ID 1 | |
98 | ||
06663267 MS |
99 | /* Make sure all structures are padded to 64bit boundary, so 32bit |
100 | userspace works under 64bit kernels */ | |
101 | ||
d8a5ba45 MS |
102 | struct fuse_attr { |
103 | __u64 ino; | |
104 | __u64 size; | |
105 | __u64 blocks; | |
106 | __u64 atime; | |
107 | __u64 mtime; | |
108 | __u64 ctime; | |
109 | __u32 atimensec; | |
110 | __u32 mtimensec; | |
111 | __u32 ctimensec; | |
112 | __u32 mode; | |
113 | __u32 nlink; | |
114 | __u32 uid; | |
115 | __u32 gid; | |
116 | __u32 rdev; | |
0e9663ee MS |
117 | __u32 blksize; |
118 | __u32 padding; | |
d8a5ba45 MS |
119 | }; |
120 | ||
e5e5558e MS |
121 | struct fuse_kstatfs { |
122 | __u64 blocks; | |
123 | __u64 bfree; | |
124 | __u64 bavail; | |
125 | __u64 files; | |
126 | __u64 ffree; | |
127 | __u32 bsize; | |
128 | __u32 namelen; | |
de5f1202 MS |
129 | __u32 frsize; |
130 | __u32 padding; | |
131 | __u32 spare[6]; | |
e5e5558e MS |
132 | }; |
133 | ||
71421259 MS |
134 | struct fuse_file_lock { |
135 | __u64 start; | |
136 | __u64 end; | |
137 | __u32 type; | |
138 | __u32 pid; /* tgid */ | |
139 | }; | |
140 | ||
9cd68455 MS |
141 | /** |
142 | * Bitmasks for fuse_setattr_in.valid | |
143 | */ | |
9e6268db MS |
144 | #define FATTR_MODE (1 << 0) |
145 | #define FATTR_UID (1 << 1) | |
146 | #define FATTR_GID (1 << 2) | |
147 | #define FATTR_SIZE (1 << 3) | |
148 | #define FATTR_ATIME (1 << 4) | |
149 | #define FATTR_MTIME (1 << 5) | |
befc649c | 150 | #define FATTR_FH (1 << 6) |
17637cba MS |
151 | #define FATTR_ATIME_NOW (1 << 7) |
152 | #define FATTR_MTIME_NOW (1 << 8) | |
f3332114 | 153 | #define FATTR_LOCKOWNER (1 << 9) |
9e6268db | 154 | |
45323fb7 MS |
155 | /** |
156 | * Flags returned by the OPEN request | |
157 | * | |
158 | * FOPEN_DIRECT_IO: bypass page cache for this open file | |
159 | * FOPEN_KEEP_CACHE: don't invalidate the data cache on open | |
a7c1b990 | 160 | * FOPEN_NONSEEKABLE: the file is not seekable |
45323fb7 MS |
161 | */ |
162 | #define FOPEN_DIRECT_IO (1 << 0) | |
163 | #define FOPEN_KEEP_CACHE (1 << 1) | |
a7c1b990 | 164 | #define FOPEN_NONSEEKABLE (1 << 2) |
45323fb7 | 165 | |
9cd68455 MS |
166 | /** |
167 | * INIT request/reply flags | |
33670fa2 | 168 | * |
f3840dc0 | 169 | * FUSE_ASYNC_READ: asynchronous read requests |
37fb3a30 | 170 | * FUSE_POSIX_LOCKS: remote locking for POSIX file locks |
f3840dc0 MS |
171 | * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported) |
172 | * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem | |
33670fa2 | 173 | * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." |
f3840dc0 | 174 | * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB |
e0a43ddc | 175 | * FUSE_DONT_MASK: don't apply umask to file mode on create operations |
69fe05c9 MS |
176 | * FUSE_SPLICE_WRITE: kernel supports splice write on the device |
177 | * FUSE_SPLICE_MOVE: kernel supports splice move on the device | |
178 | * FUSE_SPLICE_READ: kernel supports splice read on the device | |
37fb3a30 | 179 | * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks |
69fe05c9 | 180 | * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories |
72d0d248 | 181 | * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages |
9cd68455 MS |
182 | */ |
183 | #define FUSE_ASYNC_READ (1 << 0) | |
71421259 | 184 | #define FUSE_POSIX_LOCKS (1 << 1) |
c79e322f | 185 | #define FUSE_FILE_OPS (1 << 2) |
6ff958ed | 186 | #define FUSE_ATOMIC_O_TRUNC (1 << 3) |
33670fa2 | 187 | #define FUSE_EXPORT_SUPPORT (1 << 4) |
78bb6cb9 | 188 | #define FUSE_BIG_WRITES (1 << 5) |
e0a43ddc | 189 | #define FUSE_DONT_MASK (1 << 6) |
69fe05c9 MS |
190 | #define FUSE_SPLICE_WRITE (1 << 7) |
191 | #define FUSE_SPLICE_MOVE (1 << 8) | |
192 | #define FUSE_SPLICE_READ (1 << 9) | |
37fb3a30 | 193 | #define FUSE_FLOCK_LOCKS (1 << 10) |
69fe05c9 | 194 | #define FUSE_HAS_IOCTL_DIR (1 << 11) |
72d0d248 | 195 | #define FUSE_AUTO_INVAL_DATA (1 << 12) |
0b05b183 | 196 | #define FUSE_DO_READDIRPLUS (1 << 13) |
9cd68455 | 197 | |
151060ac TH |
198 | /** |
199 | * CUSE INIT request/reply flags | |
200 | * | |
201 | * CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl | |
202 | */ | |
203 | #define CUSE_UNRESTRICTED_IOCTL (1 << 0) | |
204 | ||
e9168c18 MS |
205 | /** |
206 | * Release flags | |
207 | */ | |
208 | #define FUSE_RELEASE_FLUSH (1 << 0) | |
37fb3a30 | 209 | #define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1) |
e9168c18 | 210 | |
c79e322f MS |
211 | /** |
212 | * Getattr flags | |
213 | */ | |
214 | #define FUSE_GETATTR_FH (1 << 0) | |
215 | ||
a9ff4f87 MS |
216 | /** |
217 | * Lock flags | |
218 | */ | |
219 | #define FUSE_LK_FLOCK (1 << 0) | |
220 | ||
b25e82e5 MS |
221 | /** |
222 | * WRITE flags | |
223 | * | |
224 | * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed | |
f3332114 | 225 | * FUSE_WRITE_LOCKOWNER: lock_owner field is valid |
b25e82e5 MS |
226 | */ |
227 | #define FUSE_WRITE_CACHE (1 << 0) | |
f3332114 MS |
228 | #define FUSE_WRITE_LOCKOWNER (1 << 1) |
229 | ||
230 | /** | |
231 | * Read flags | |
232 | */ | |
233 | #define FUSE_READ_LOCKOWNER (1 << 1) | |
b25e82e5 | 234 | |
59efec7b TH |
235 | /** |
236 | * Ioctl flags | |
237 | * | |
238 | * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine | |
239 | * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed | |
240 | * FUSE_IOCTL_RETRY: retry with new iovecs | |
1baa26b2 | 241 | * FUSE_IOCTL_32BIT: 32bit ioctl |
b18da0c5 | 242 | * FUSE_IOCTL_DIR: is a directory |
59efec7b TH |
243 | * |
244 | * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs | |
245 | */ | |
246 | #define FUSE_IOCTL_COMPAT (1 << 0) | |
247 | #define FUSE_IOCTL_UNRESTRICTED (1 << 1) | |
248 | #define FUSE_IOCTL_RETRY (1 << 2) | |
1baa26b2 | 249 | #define FUSE_IOCTL_32BIT (1 << 3) |
b18da0c5 | 250 | #define FUSE_IOCTL_DIR (1 << 4) |
59efec7b TH |
251 | |
252 | #define FUSE_IOCTL_MAX_IOV 256 | |
253 | ||
95668a69 TH |
254 | /** |
255 | * Poll flags | |
256 | * | |
257 | * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify | |
258 | */ | |
259 | #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0) | |
260 | ||
334f485d | 261 | enum fuse_opcode { |
e5e5558e MS |
262 | FUSE_LOOKUP = 1, |
263 | FUSE_FORGET = 2, /* no reply */ | |
264 | FUSE_GETATTR = 3, | |
9e6268db | 265 | FUSE_SETATTR = 4, |
e5e5558e | 266 | FUSE_READLINK = 5, |
9e6268db | 267 | FUSE_SYMLINK = 6, |
9e6268db MS |
268 | FUSE_MKNOD = 8, |
269 | FUSE_MKDIR = 9, | |
270 | FUSE_UNLINK = 10, | |
271 | FUSE_RMDIR = 11, | |
272 | FUSE_RENAME = 12, | |
273 | FUSE_LINK = 13, | |
b6aeaded MS |
274 | FUSE_OPEN = 14, |
275 | FUSE_READ = 15, | |
276 | FUSE_WRITE = 16, | |
e5e5558e | 277 | FUSE_STATFS = 17, |
b6aeaded MS |
278 | FUSE_RELEASE = 18, |
279 | FUSE_FSYNC = 20, | |
92a8780e MS |
280 | FUSE_SETXATTR = 21, |
281 | FUSE_GETXATTR = 22, | |
282 | FUSE_LISTXATTR = 23, | |
283 | FUSE_REMOVEXATTR = 24, | |
b6aeaded | 284 | FUSE_FLUSH = 25, |
04730fef MS |
285 | FUSE_INIT = 26, |
286 | FUSE_OPENDIR = 27, | |
287 | FUSE_READDIR = 28, | |
82547981 | 288 | FUSE_RELEASEDIR = 29, |
31d40d74 | 289 | FUSE_FSYNCDIR = 30, |
71421259 MS |
290 | FUSE_GETLK = 31, |
291 | FUSE_SETLK = 32, | |
292 | FUSE_SETLKW = 33, | |
fd72faac | 293 | FUSE_ACCESS = 34, |
a4d27e75 MS |
294 | FUSE_CREATE = 35, |
295 | FUSE_INTERRUPT = 36, | |
b2d2272f | 296 | FUSE_BMAP = 37, |
0ec7ca41 | 297 | FUSE_DESTROY = 38, |
59efec7b | 298 | FUSE_IOCTL = 39, |
95668a69 | 299 | FUSE_POLL = 40, |
2d45ba38 | 300 | FUSE_NOTIFY_REPLY = 41, |
02c048b9 | 301 | FUSE_BATCH_FORGET = 42, |
05ba1f08 | 302 | FUSE_FALLOCATE = 43, |
0b05b183 | 303 | FUSE_READDIRPLUS = 44, |
151060ac TH |
304 | |
305 | /* CUSE specific operations */ | |
306 | CUSE_INIT = 4096, | |
334f485d MS |
307 | }; |
308 | ||
8599396b | 309 | enum fuse_notify_code { |
95668a69 | 310 | FUSE_NOTIFY_POLL = 1, |
3b463ae0 JM |
311 | FUSE_NOTIFY_INVAL_INODE = 2, |
312 | FUSE_NOTIFY_INVAL_ENTRY = 3, | |
a1d75f25 | 313 | FUSE_NOTIFY_STORE = 4, |
2d45ba38 | 314 | FUSE_NOTIFY_RETRIEVE = 5, |
451d0f59 | 315 | FUSE_NOTIFY_DELETE = 6, |
8599396b TH |
316 | FUSE_NOTIFY_CODE_MAX, |
317 | }; | |
318 | ||
1d3d752b MS |
319 | /* The read buffer is required to be at least 8k, but may be much larger */ |
320 | #define FUSE_MIN_READ_BUFFER 8192 | |
e5e5558e | 321 | |
0e9663ee MS |
322 | #define FUSE_COMPAT_ENTRY_OUT_SIZE 120 |
323 | ||
e5e5558e MS |
324 | struct fuse_entry_out { |
325 | __u64 nodeid; /* Inode ID */ | |
326 | __u64 generation; /* Inode generation: nodeid:gen must | |
327 | be unique for the fs's lifetime */ | |
328 | __u64 entry_valid; /* Cache timeout for the name */ | |
329 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
330 | __u32 entry_valid_nsec; | |
331 | __u32 attr_valid_nsec; | |
332 | struct fuse_attr attr; | |
333 | }; | |
334 | ||
335 | struct fuse_forget_in { | |
9e6268db | 336 | __u64 nlookup; |
e5e5558e MS |
337 | }; |
338 | ||
02c048b9 MS |
339 | struct fuse_forget_one { |
340 | __u64 nodeid; | |
341 | __u64 nlookup; | |
342 | }; | |
343 | ||
344 | struct fuse_batch_forget_in { | |
345 | __u32 count; | |
346 | __u32 dummy; | |
347 | }; | |
348 | ||
c79e322f MS |
349 | struct fuse_getattr_in { |
350 | __u32 getattr_flags; | |
351 | __u32 dummy; | |
352 | __u64 fh; | |
353 | }; | |
354 | ||
0e9663ee MS |
355 | #define FUSE_COMPAT_ATTR_OUT_SIZE 96 |
356 | ||
e5e5558e MS |
357 | struct fuse_attr_out { |
358 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
359 | __u32 attr_valid_nsec; | |
360 | __u32 dummy; | |
361 | struct fuse_attr attr; | |
362 | }; | |
363 | ||
e0a43ddc MS |
364 | #define FUSE_COMPAT_MKNOD_IN_SIZE 8 |
365 | ||
9e6268db MS |
366 | struct fuse_mknod_in { |
367 | __u32 mode; | |
368 | __u32 rdev; | |
e0a43ddc MS |
369 | __u32 umask; |
370 | __u32 padding; | |
9e6268db MS |
371 | }; |
372 | ||
373 | struct fuse_mkdir_in { | |
374 | __u32 mode; | |
e0a43ddc | 375 | __u32 umask; |
9e6268db MS |
376 | }; |
377 | ||
378 | struct fuse_rename_in { | |
379 | __u64 newdir; | |
380 | }; | |
381 | ||
382 | struct fuse_link_in { | |
383 | __u64 oldnodeid; | |
384 | }; | |
385 | ||
386 | struct fuse_setattr_in { | |
387 | __u32 valid; | |
06663267 | 388 | __u32 padding; |
befc649c MS |
389 | __u64 fh; |
390 | __u64 size; | |
f3332114 | 391 | __u64 lock_owner; |
befc649c MS |
392 | __u64 atime; |
393 | __u64 mtime; | |
394 | __u64 unused2; | |
395 | __u32 atimensec; | |
396 | __u32 mtimensec; | |
397 | __u32 unused3; | |
398 | __u32 mode; | |
399 | __u32 unused4; | |
400 | __u32 uid; | |
401 | __u32 gid; | |
402 | __u32 unused5; | |
9e6268db MS |
403 | }; |
404 | ||
b6aeaded | 405 | struct fuse_open_in { |
e0a43ddc MS |
406 | __u32 flags; |
407 | __u32 unused; | |
408 | }; | |
409 | ||
410 | struct fuse_create_in { | |
b6aeaded | 411 | __u32 flags; |
fd72faac | 412 | __u32 mode; |
e0a43ddc MS |
413 | __u32 umask; |
414 | __u32 padding; | |
b6aeaded MS |
415 | }; |
416 | ||
417 | struct fuse_open_out { | |
418 | __u64 fh; | |
419 | __u32 open_flags; | |
06663267 | 420 | __u32 padding; |
b6aeaded MS |
421 | }; |
422 | ||
423 | struct fuse_release_in { | |
424 | __u64 fh; | |
425 | __u32 flags; | |
e9168c18 MS |
426 | __u32 release_flags; |
427 | __u64 lock_owner; | |
b6aeaded MS |
428 | }; |
429 | ||
430 | struct fuse_flush_in { | |
431 | __u64 fh; | |
e9168c18 | 432 | __u32 unused; |
06663267 | 433 | __u32 padding; |
71421259 | 434 | __u64 lock_owner; |
b6aeaded MS |
435 | }; |
436 | ||
437 | struct fuse_read_in { | |
438 | __u64 fh; | |
439 | __u64 offset; | |
440 | __u32 size; | |
f3332114 MS |
441 | __u32 read_flags; |
442 | __u64 lock_owner; | |
a6643094 MS |
443 | __u32 flags; |
444 | __u32 padding; | |
b6aeaded MS |
445 | }; |
446 | ||
f3332114 MS |
447 | #define FUSE_COMPAT_WRITE_IN_SIZE 24 |
448 | ||
b6aeaded MS |
449 | struct fuse_write_in { |
450 | __u64 fh; | |
451 | __u64 offset; | |
452 | __u32 size; | |
453 | __u32 write_flags; | |
f3332114 | 454 | __u64 lock_owner; |
a6643094 MS |
455 | __u32 flags; |
456 | __u32 padding; | |
b6aeaded MS |
457 | }; |
458 | ||
459 | struct fuse_write_out { | |
460 | __u32 size; | |
06663267 | 461 | __u32 padding; |
b6aeaded MS |
462 | }; |
463 | ||
de5f1202 MS |
464 | #define FUSE_COMPAT_STATFS_SIZE 48 |
465 | ||
e5e5558e MS |
466 | struct fuse_statfs_out { |
467 | struct fuse_kstatfs st; | |
468 | }; | |
469 | ||
b6aeaded MS |
470 | struct fuse_fsync_in { |
471 | __u64 fh; | |
472 | __u32 fsync_flags; | |
06663267 | 473 | __u32 padding; |
b6aeaded MS |
474 | }; |
475 | ||
92a8780e MS |
476 | struct fuse_setxattr_in { |
477 | __u32 size; | |
478 | __u32 flags; | |
479 | }; | |
480 | ||
481 | struct fuse_getxattr_in { | |
482 | __u32 size; | |
06663267 | 483 | __u32 padding; |
92a8780e MS |
484 | }; |
485 | ||
486 | struct fuse_getxattr_out { | |
487 | __u32 size; | |
06663267 | 488 | __u32 padding; |
92a8780e MS |
489 | }; |
490 | ||
71421259 MS |
491 | struct fuse_lk_in { |
492 | __u64 fh; | |
493 | __u64 owner; | |
494 | struct fuse_file_lock lk; | |
a9ff4f87 MS |
495 | __u32 lk_flags; |
496 | __u32 padding; | |
71421259 MS |
497 | }; |
498 | ||
499 | struct fuse_lk_out { | |
500 | struct fuse_file_lock lk; | |
501 | }; | |
502 | ||
31d40d74 MS |
503 | struct fuse_access_in { |
504 | __u32 mask; | |
505 | __u32 padding; | |
506 | }; | |
507 | ||
3ec870d5 | 508 | struct fuse_init_in { |
334f485d MS |
509 | __u32 major; |
510 | __u32 minor; | |
9cd68455 MS |
511 | __u32 max_readahead; |
512 | __u32 flags; | |
334f485d MS |
513 | }; |
514 | ||
3ec870d5 MS |
515 | struct fuse_init_out { |
516 | __u32 major; | |
517 | __u32 minor; | |
9cd68455 MS |
518 | __u32 max_readahead; |
519 | __u32 flags; | |
7a6d3c8b CH |
520 | __u16 max_background; |
521 | __u16 congestion_threshold; | |
3ec870d5 MS |
522 | __u32 max_write; |
523 | }; | |
524 | ||
151060ac TH |
525 | #define CUSE_INIT_INFO_MAX 4096 |
526 | ||
527 | struct cuse_init_in { | |
528 | __u32 major; | |
529 | __u32 minor; | |
530 | __u32 unused; | |
531 | __u32 flags; | |
532 | }; | |
533 | ||
534 | struct cuse_init_out { | |
535 | __u32 major; | |
536 | __u32 minor; | |
537 | __u32 unused; | |
538 | __u32 flags; | |
539 | __u32 max_read; | |
540 | __u32 max_write; | |
541 | __u32 dev_major; /* chardev major */ | |
542 | __u32 dev_minor; /* chardev minor */ | |
543 | __u32 spare[10]; | |
544 | }; | |
545 | ||
a4d27e75 MS |
546 | struct fuse_interrupt_in { |
547 | __u64 unique; | |
548 | }; | |
549 | ||
b2d2272f MS |
550 | struct fuse_bmap_in { |
551 | __u64 block; | |
552 | __u32 blocksize; | |
553 | __u32 padding; | |
554 | }; | |
555 | ||
556 | struct fuse_bmap_out { | |
557 | __u64 block; | |
558 | }; | |
559 | ||
59efec7b TH |
560 | struct fuse_ioctl_in { |
561 | __u64 fh; | |
562 | __u32 flags; | |
563 | __u32 cmd; | |
564 | __u64 arg; | |
565 | __u32 in_size; | |
566 | __u32 out_size; | |
567 | }; | |
568 | ||
1baa26b2 MS |
569 | struct fuse_ioctl_iovec { |
570 | __u64 base; | |
571 | __u64 len; | |
572 | }; | |
573 | ||
59efec7b TH |
574 | struct fuse_ioctl_out { |
575 | __s32 result; | |
576 | __u32 flags; | |
577 | __u32 in_iovs; | |
578 | __u32 out_iovs; | |
579 | }; | |
580 | ||
95668a69 TH |
581 | struct fuse_poll_in { |
582 | __u64 fh; | |
583 | __u64 kh; | |
584 | __u32 flags; | |
585 | __u32 padding; | |
586 | }; | |
587 | ||
588 | struct fuse_poll_out { | |
589 | __u32 revents; | |
590 | __u32 padding; | |
591 | }; | |
592 | ||
593 | struct fuse_notify_poll_wakeup_out { | |
594 | __u64 kh; | |
595 | }; | |
596 | ||
05ba1f08 AP |
597 | struct fuse_fallocate_in { |
598 | __u64 fh; | |
599 | __u64 offset; | |
600 | __u64 length; | |
601 | __u32 mode; | |
602 | __u32 padding; | |
603 | }; | |
604 | ||
334f485d MS |
605 | struct fuse_in_header { |
606 | __u32 len; | |
607 | __u32 opcode; | |
608 | __u64 unique; | |
609 | __u64 nodeid; | |
610 | __u32 uid; | |
611 | __u32 gid; | |
612 | __u32 pid; | |
06663267 | 613 | __u32 padding; |
334f485d MS |
614 | }; |
615 | ||
616 | struct fuse_out_header { | |
617 | __u32 len; | |
618 | __s32 error; | |
619 | __u64 unique; | |
620 | }; | |
621 | ||
e5e5558e MS |
622 | struct fuse_dirent { |
623 | __u64 ino; | |
624 | __u64 off; | |
625 | __u32 namelen; | |
626 | __u32 type; | |
c628ee67 | 627 | char name[]; |
e5e5558e MS |
628 | }; |
629 | ||
21f3da95 | 630 | #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name) |
e5e5558e MS |
631 | #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) |
632 | #define FUSE_DIRENT_SIZE(d) \ | |
633 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) | |
29d434b3 | 634 | |
0b05b183 AA |
635 | struct fuse_direntplus { |
636 | struct fuse_entry_out entry_out; | |
637 | struct fuse_dirent dirent; | |
638 | }; | |
639 | ||
640 | #define FUSE_NAME_OFFSET_DIRENTPLUS \ | |
641 | offsetof(struct fuse_direntplus, dirent.name) | |
642 | #define FUSE_DIRENTPLUS_SIZE(d) \ | |
643 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen) | |
644 | ||
3b463ae0 JM |
645 | struct fuse_notify_inval_inode_out { |
646 | __u64 ino; | |
647 | __s64 off; | |
648 | __s64 len; | |
649 | }; | |
650 | ||
651 | struct fuse_notify_inval_entry_out { | |
652 | __u64 parent; | |
653 | __u32 namelen; | |
654 | __u32 padding; | |
655 | }; | |
656 | ||
451d0f59 JM |
657 | struct fuse_notify_delete_out { |
658 | __u64 parent; | |
659 | __u64 child; | |
660 | __u32 namelen; | |
661 | __u32 padding; | |
662 | }; | |
663 | ||
a1d75f25 MS |
664 | struct fuse_notify_store_out { |
665 | __u64 nodeid; | |
666 | __u64 offset; | |
667 | __u32 size; | |
668 | __u32 padding; | |
669 | }; | |
670 | ||
2d45ba38 MS |
671 | struct fuse_notify_retrieve_out { |
672 | __u64 notify_unique; | |
673 | __u64 nodeid; | |
674 | __u64 offset; | |
675 | __u32 size; | |
676 | __u32 padding; | |
677 | }; | |
678 | ||
679 | /* Matches the size of fuse_write_in */ | |
680 | struct fuse_notify_retrieve_in { | |
681 | __u64 dummy1; | |
682 | __u64 offset; | |
683 | __u32 size; | |
684 | __u32 dummy2; | |
685 | __u64 dummy3; | |
686 | __u64 dummy4; | |
687 | }; | |
688 | ||
29d434b3 | 689 | #endif /* _LINUX_FUSE_H */ |