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e2be04c7 | 1 | /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ |
d8a5ba45 | 2 | /* |
7e98d530 | 3 | This file defines the kernel interface of FUSE |
1f55ed06 | 4 | Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu> |
d8a5ba45 MS |
5 | |
6 | This program can be distributed under the terms of the GNU GPL. | |
7 | See the file COPYING. | |
7e98d530 MS |
8 | |
9 | This -- and only this -- header file may also be distributed under | |
10 | the terms of the BSD Licence as follows: | |
11 | ||
12 | Copyright (C) 2001-2007 Miklos Szeredi. All rights reserved. | |
13 | ||
14 | Redistribution and use in source and binary forms, with or without | |
15 | modification, are permitted provided that the following conditions | |
16 | are met: | |
17 | 1. Redistributions of source code must retain the above copyright | |
18 | notice, this list of conditions and the following disclaimer. | |
19 | 2. Redistributions in binary form must reproduce the above copyright | |
20 | notice, this list of conditions and the following disclaimer in the | |
21 | documentation and/or other materials provided with the distribution. | |
22 | ||
23 | THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
24 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
25 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
26 | ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE | |
27 | FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
28 | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
29 | OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
30 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
31 | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
32 | OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
33 | SUCH DAMAGE. | |
d8a5ba45 MS |
34 | */ |
35 | ||
c79e322f MS |
36 | /* |
37 | * This file defines the kernel interface of FUSE | |
38 | * | |
39 | * Protocol changelog: | |
40 | * | |
41 | * 7.9: | |
42 | * - new fuse_getattr_in input argument of GETATTR | |
a9ff4f87 | 43 | * - add lk_flags in fuse_lk_in |
f3332114 | 44 | * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in |
0e9663ee | 45 | * - add blksize field to fuse_attr |
a6643094 | 46 | * - add file flags field to fuse_read_in and fuse_write_in |
7142fd1b | 47 | * - Add ATIME_NOW and MTIME_NOW flags to fuse_setattr_in |
a7c1b990 TH |
48 | * |
49 | * 7.10 | |
50 | * - add nonseekable open flag | |
1f55ed06 MS |
51 | * |
52 | * 7.11 | |
53 | * - add IOCTL message | |
54 | * - add unsolicited notification support | |
55 | * - add POLL message and NOTIFY_POLL notification | |
e0a43ddc MS |
56 | * |
57 | * 7.12 | |
68065b84 | 58 | * - add umask flag to input argument of create, mknod and mkdir |
3b463ae0 JM |
59 | * - add notification messages for invalidation of inodes and |
60 | * directory entries | |
7a6d3c8b CH |
61 | * |
62 | * 7.13 | |
63 | * - make max number of background requests and congestion threshold | |
64 | * tunables | |
dd3bb14f MS |
65 | * |
66 | * 7.14 | |
67 | * - add splice support to fuse device | |
a1d75f25 MS |
68 | * |
69 | * 7.15 | |
70 | * - add store notify | |
2d45ba38 | 71 | * - add retrieve notify |
02c048b9 MS |
72 | * |
73 | * 7.16 | |
74 | * - add BATCH_FORGET request | |
1baa26b2 MS |
75 | * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct |
76 | * fuse_ioctl_iovec' instead of ambiguous 'struct iovec' | |
77 | * - add FUSE_IOCTL_32BIT flag | |
37fb3a30 MS |
78 | * |
79 | * 7.17 | |
80 | * - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK | |
b18da0c5 MS |
81 | * |
82 | * 7.18 | |
83 | * - add FUSE_IOCTL_DIR flag | |
451d0f59 | 84 | * - add FUSE_NOTIFY_DELETE |
05ba1f08 AP |
85 | * |
86 | * 7.19 | |
87 | * - add FUSE_FALLOCATE | |
72d0d248 BF |
88 | * |
89 | * 7.20 | |
90 | * - add FUSE_AUTO_INVAL_DATA | |
23c153e5 MS |
91 | * |
92 | * 7.21 | |
93 | * - add FUSE_READDIRPLUS | |
0415d291 | 94 | * - send the requested events in POLL request |
60b9df7a MS |
95 | * |
96 | * 7.22 | |
97 | * - add FUSE_ASYNC_DIO | |
4d99ff8f PE |
98 | * |
99 | * 7.23 | |
100 | * - add FUSE_WRITEBACK_CACHE | |
e27c9d38 MS |
101 | * - add time_gran to fuse_init_out |
102 | * - add reserved space to fuse_init_out | |
ab9e13f7 MP |
103 | * - add FATTR_CTIME |
104 | * - add ctime and ctimensec to fuse_setattr_in | |
1560c974 | 105 | * - add FUSE_RENAME2 request |
d7afaec0 | 106 | * - add FUSE_NO_OPEN_SUPPORT flag |
0b5da8db R |
107 | * |
108 | * 7.24 | |
109 | * - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support | |
5c672ab3 MS |
110 | * |
111 | * 7.25 | |
112 | * - add FUSE_PARALLEL_DIROPS | |
5e940c1d MS |
113 | * |
114 | * 7.26 | |
115 | * - add FUSE_HANDLE_KILLPRIV | |
60bcc88a | 116 | * - add FUSE_POSIX_ACL |
3b7008b2 SL |
117 | * |
118 | * 7.27 | |
119 | * - add FUSE_ABORT_ERROR | |
88bc7d50 NV |
120 | * |
121 | * 7.28 | |
122 | * - add FUSE_COPY_FILE_RANGE | |
6433b899 | 123 | * - add FOPEN_CACHE_DIR |
5da784cc | 124 | * - add FUSE_MAX_PAGES, add max_pages to init_out |
5571f1e6 | 125 | * - add FUSE_CACHE_SYMLINKS |
d9a9ea94 CA |
126 | * |
127 | * 7.29 | |
128 | * - add FUSE_NO_OPENDIR_SUPPORT flag | |
ad2ba64d KS |
129 | * |
130 | * 7.30 | |
131 | * - add FUSE_EXPLICIT_INVAL_DATA | |
6407f44a | 132 | * - add FUSE_IOCTL_COMPAT_X32 |
4a2abf99 MS |
133 | * |
134 | * 7.31 | |
135 | * - add FUSE_WRITE_KILL_PRIV flag | |
c79e322f | 136 | */ |
d8a5ba45 | 137 | |
29d434b3 TH |
138 | #ifndef _LINUX_FUSE_H |
139 | #define _LINUX_FUSE_H | |
140 | ||
4c82456e | 141 | #ifdef __KERNEL__ |
1f55ed06 | 142 | #include <linux/types.h> |
7e98d530 MS |
143 | #else |
144 | #include <stdint.h> | |
7e98d530 | 145 | #endif |
d8a5ba45 | 146 | |
37d217f0 MS |
147 | /* |
148 | * Version negotiation: | |
149 | * | |
150 | * Both the kernel and userspace send the version they support in the | |
151 | * INIT request and reply respectively. | |
152 | * | |
153 | * If the major versions match then both shall use the smallest | |
154 | * of the two minor versions for communication. | |
155 | * | |
156 | * If the kernel supports a larger major version, then userspace shall | |
157 | * reply with the major version it supports, ignore the rest of the | |
158 | * INIT message and expect a new INIT message from the kernel with a | |
159 | * matching major version. | |
160 | * | |
161 | * If the library supports a larger major version, then it shall fall | |
162 | * back to the major protocol version sent by the kernel for | |
163 | * communication and reply with that major version (and an arbitrary | |
164 | * supported minor version). | |
165 | */ | |
166 | ||
d8a5ba45 | 167 | /** Version number of this interface */ |
9e6268db | 168 | #define FUSE_KERNEL_VERSION 7 |
d8a5ba45 MS |
169 | |
170 | /** Minor version number of this interface */ | |
4a2abf99 | 171 | #define FUSE_KERNEL_MINOR_VERSION 31 |
d8a5ba45 MS |
172 | |
173 | /** The node ID of the root inode */ | |
174 | #define FUSE_ROOT_ID 1 | |
175 | ||
06663267 MS |
176 | /* Make sure all structures are padded to 64bit boundary, so 32bit |
177 | userspace works under 64bit kernels */ | |
178 | ||
d8a5ba45 | 179 | struct fuse_attr { |
4c82456e MS |
180 | uint64_t ino; |
181 | uint64_t size; | |
182 | uint64_t blocks; | |
183 | uint64_t atime; | |
184 | uint64_t mtime; | |
185 | uint64_t ctime; | |
186 | uint32_t atimensec; | |
187 | uint32_t mtimensec; | |
188 | uint32_t ctimensec; | |
189 | uint32_t mode; | |
190 | uint32_t nlink; | |
191 | uint32_t uid; | |
192 | uint32_t gid; | |
193 | uint32_t rdev; | |
194 | uint32_t blksize; | |
195 | uint32_t padding; | |
d8a5ba45 MS |
196 | }; |
197 | ||
e5e5558e | 198 | struct fuse_kstatfs { |
4c82456e MS |
199 | uint64_t blocks; |
200 | uint64_t bfree; | |
201 | uint64_t bavail; | |
202 | uint64_t files; | |
203 | uint64_t ffree; | |
204 | uint32_t bsize; | |
205 | uint32_t namelen; | |
206 | uint32_t frsize; | |
207 | uint32_t padding; | |
208 | uint32_t spare[6]; | |
e5e5558e MS |
209 | }; |
210 | ||
71421259 | 211 | struct fuse_file_lock { |
4c82456e MS |
212 | uint64_t start; |
213 | uint64_t end; | |
214 | uint32_t type; | |
215 | uint32_t pid; /* tgid */ | |
71421259 MS |
216 | }; |
217 | ||
9cd68455 MS |
218 | /** |
219 | * Bitmasks for fuse_setattr_in.valid | |
220 | */ | |
9e6268db MS |
221 | #define FATTR_MODE (1 << 0) |
222 | #define FATTR_UID (1 << 1) | |
223 | #define FATTR_GID (1 << 2) | |
224 | #define FATTR_SIZE (1 << 3) | |
225 | #define FATTR_ATIME (1 << 4) | |
226 | #define FATTR_MTIME (1 << 5) | |
befc649c | 227 | #define FATTR_FH (1 << 6) |
17637cba MS |
228 | #define FATTR_ATIME_NOW (1 << 7) |
229 | #define FATTR_MTIME_NOW (1 << 8) | |
f3332114 | 230 | #define FATTR_LOCKOWNER (1 << 9) |
ab9e13f7 | 231 | #define FATTR_CTIME (1 << 10) |
9e6268db | 232 | |
45323fb7 MS |
233 | /** |
234 | * Flags returned by the OPEN request | |
235 | * | |
236 | * FOPEN_DIRECT_IO: bypass page cache for this open file | |
237 | * FOPEN_KEEP_CACHE: don't invalidate the data cache on open | |
a7c1b990 | 238 | * FOPEN_NONSEEKABLE: the file is not seekable |
6433b899 | 239 | * FOPEN_CACHE_DIR: allow caching this directory |
bbd84f33 | 240 | * FOPEN_STREAM: the file is stream-like (no file position at all) |
45323fb7 MS |
241 | */ |
242 | #define FOPEN_DIRECT_IO (1 << 0) | |
243 | #define FOPEN_KEEP_CACHE (1 << 1) | |
a7c1b990 | 244 | #define FOPEN_NONSEEKABLE (1 << 2) |
6433b899 | 245 | #define FOPEN_CACHE_DIR (1 << 3) |
bbd84f33 | 246 | #define FOPEN_STREAM (1 << 4) |
45323fb7 | 247 | |
9cd68455 MS |
248 | /** |
249 | * INIT request/reply flags | |
33670fa2 | 250 | * |
f3840dc0 | 251 | * FUSE_ASYNC_READ: asynchronous read requests |
37fb3a30 | 252 | * FUSE_POSIX_LOCKS: remote locking for POSIX file locks |
f3840dc0 MS |
253 | * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported) |
254 | * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem | |
33670fa2 | 255 | * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." |
f3840dc0 | 256 | * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB |
e0a43ddc | 257 | * FUSE_DONT_MASK: don't apply umask to file mode on create operations |
69fe05c9 MS |
258 | * FUSE_SPLICE_WRITE: kernel supports splice write on the device |
259 | * FUSE_SPLICE_MOVE: kernel supports splice move on the device | |
260 | * FUSE_SPLICE_READ: kernel supports splice read on the device | |
37fb3a30 | 261 | * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks |
69fe05c9 | 262 | * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories |
72d0d248 | 263 | * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages |
634734b6 EW |
264 | * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) |
265 | * FUSE_READDIRPLUS_AUTO: adaptive readdirplus | |
60b9df7a | 266 | * FUSE_ASYNC_DIO: asynchronous direct I/O submission |
4d99ff8f | 267 | * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes |
d7afaec0 | 268 | * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens |
5c672ab3 | 269 | * FUSE_PARALLEL_DIROPS: allow parallel lookups and readdir |
5e940c1d | 270 | * FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on write/chown/trunc |
60bcc88a | 271 | * FUSE_POSIX_ACL: filesystem supports posix acls |
3b7008b2 | 272 | * FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED |
5da784cc | 273 | * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages |
5571f1e6 | 274 | * FUSE_CACHE_SYMLINKS: cache READLINK responses |
d9a9ea94 | 275 | * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir |
ad2ba64d | 276 | * FUSE_EXPLICIT_INVAL_DATA: only invalidate cached pages on explicit request |
9cd68455 MS |
277 | */ |
278 | #define FUSE_ASYNC_READ (1 << 0) | |
71421259 | 279 | #define FUSE_POSIX_LOCKS (1 << 1) |
c79e322f | 280 | #define FUSE_FILE_OPS (1 << 2) |
6ff958ed | 281 | #define FUSE_ATOMIC_O_TRUNC (1 << 3) |
33670fa2 | 282 | #define FUSE_EXPORT_SUPPORT (1 << 4) |
78bb6cb9 | 283 | #define FUSE_BIG_WRITES (1 << 5) |
e0a43ddc | 284 | #define FUSE_DONT_MASK (1 << 6) |
69fe05c9 MS |
285 | #define FUSE_SPLICE_WRITE (1 << 7) |
286 | #define FUSE_SPLICE_MOVE (1 << 8) | |
287 | #define FUSE_SPLICE_READ (1 << 9) | |
37fb3a30 | 288 | #define FUSE_FLOCK_LOCKS (1 << 10) |
69fe05c9 | 289 | #define FUSE_HAS_IOCTL_DIR (1 << 11) |
72d0d248 | 290 | #define FUSE_AUTO_INVAL_DATA (1 << 12) |
0b05b183 | 291 | #define FUSE_DO_READDIRPLUS (1 << 13) |
634734b6 | 292 | #define FUSE_READDIRPLUS_AUTO (1 << 14) |
60b9df7a | 293 | #define FUSE_ASYNC_DIO (1 << 15) |
4d99ff8f | 294 | #define FUSE_WRITEBACK_CACHE (1 << 16) |
d7afaec0 | 295 | #define FUSE_NO_OPEN_SUPPORT (1 << 17) |
5c672ab3 | 296 | #define FUSE_PARALLEL_DIROPS (1 << 18) |
5e940c1d | 297 | #define FUSE_HANDLE_KILLPRIV (1 << 19) |
60bcc88a | 298 | #define FUSE_POSIX_ACL (1 << 20) |
3b7008b2 | 299 | #define FUSE_ABORT_ERROR (1 << 21) |
5da784cc | 300 | #define FUSE_MAX_PAGES (1 << 22) |
5571f1e6 | 301 | #define FUSE_CACHE_SYMLINKS (1 << 23) |
d9a9ea94 | 302 | #define FUSE_NO_OPENDIR_SUPPORT (1 << 24) |
ad2ba64d | 303 | #define FUSE_EXPLICIT_INVAL_DATA (1 << 25) |
9cd68455 | 304 | |
151060ac TH |
305 | /** |
306 | * CUSE INIT request/reply flags | |
307 | * | |
308 | * CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl | |
309 | */ | |
310 | #define CUSE_UNRESTRICTED_IOCTL (1 << 0) | |
311 | ||
e9168c18 MS |
312 | /** |
313 | * Release flags | |
314 | */ | |
315 | #define FUSE_RELEASE_FLUSH (1 << 0) | |
37fb3a30 | 316 | #define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1) |
e9168c18 | 317 | |
c79e322f MS |
318 | /** |
319 | * Getattr flags | |
320 | */ | |
321 | #define FUSE_GETATTR_FH (1 << 0) | |
322 | ||
a9ff4f87 MS |
323 | /** |
324 | * Lock flags | |
325 | */ | |
326 | #define FUSE_LK_FLOCK (1 << 0) | |
327 | ||
b25e82e5 MS |
328 | /** |
329 | * WRITE flags | |
330 | * | |
331 | * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed | |
f3332114 | 332 | * FUSE_WRITE_LOCKOWNER: lock_owner field is valid |
4a2abf99 | 333 | * FUSE_WRITE_KILL_PRIV: kill suid and sgid bits |
b25e82e5 MS |
334 | */ |
335 | #define FUSE_WRITE_CACHE (1 << 0) | |
f3332114 | 336 | #define FUSE_WRITE_LOCKOWNER (1 << 1) |
4a2abf99 | 337 | #define FUSE_WRITE_KILL_PRIV (1 << 2) |
f3332114 MS |
338 | |
339 | /** | |
340 | * Read flags | |
341 | */ | |
342 | #define FUSE_READ_LOCKOWNER (1 << 1) | |
b25e82e5 | 343 | |
59efec7b TH |
344 | /** |
345 | * Ioctl flags | |
346 | * | |
347 | * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine | |
348 | * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed | |
349 | * FUSE_IOCTL_RETRY: retry with new iovecs | |
1baa26b2 | 350 | * FUSE_IOCTL_32BIT: 32bit ioctl |
b18da0c5 | 351 | * FUSE_IOCTL_DIR: is a directory |
6407f44a | 352 | * FUSE_IOCTL_COMPAT_X32: x32 compat ioctl on 64bit machine (64bit time_t) |
59efec7b TH |
353 | * |
354 | * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs | |
355 | */ | |
356 | #define FUSE_IOCTL_COMPAT (1 << 0) | |
357 | #define FUSE_IOCTL_UNRESTRICTED (1 << 1) | |
358 | #define FUSE_IOCTL_RETRY (1 << 2) | |
1baa26b2 | 359 | #define FUSE_IOCTL_32BIT (1 << 3) |
b18da0c5 | 360 | #define FUSE_IOCTL_DIR (1 << 4) |
6407f44a | 361 | #define FUSE_IOCTL_COMPAT_X32 (1 << 5) |
59efec7b TH |
362 | |
363 | #define FUSE_IOCTL_MAX_IOV 256 | |
364 | ||
95668a69 TH |
365 | /** |
366 | * Poll flags | |
367 | * | |
368 | * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify | |
369 | */ | |
370 | #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0) | |
371 | ||
154603fe AS |
372 | /** |
373 | * Fsync flags | |
374 | * | |
375 | * FUSE_FSYNC_FDATASYNC: Sync data only, not metadata | |
376 | */ | |
377 | #define FUSE_FSYNC_FDATASYNC (1 << 0) | |
378 | ||
334f485d | 379 | enum fuse_opcode { |
88bc7d50 NV |
380 | FUSE_LOOKUP = 1, |
381 | FUSE_FORGET = 2, /* no reply */ | |
382 | FUSE_GETATTR = 3, | |
383 | FUSE_SETATTR = 4, | |
384 | FUSE_READLINK = 5, | |
385 | FUSE_SYMLINK = 6, | |
386 | FUSE_MKNOD = 8, | |
387 | FUSE_MKDIR = 9, | |
388 | FUSE_UNLINK = 10, | |
389 | FUSE_RMDIR = 11, | |
390 | FUSE_RENAME = 12, | |
391 | FUSE_LINK = 13, | |
392 | FUSE_OPEN = 14, | |
393 | FUSE_READ = 15, | |
394 | FUSE_WRITE = 16, | |
395 | FUSE_STATFS = 17, | |
396 | FUSE_RELEASE = 18, | |
397 | FUSE_FSYNC = 20, | |
398 | FUSE_SETXATTR = 21, | |
399 | FUSE_GETXATTR = 22, | |
400 | FUSE_LISTXATTR = 23, | |
401 | FUSE_REMOVEXATTR = 24, | |
402 | FUSE_FLUSH = 25, | |
403 | FUSE_INIT = 26, | |
404 | FUSE_OPENDIR = 27, | |
405 | FUSE_READDIR = 28, | |
406 | FUSE_RELEASEDIR = 29, | |
407 | FUSE_FSYNCDIR = 30, | |
408 | FUSE_GETLK = 31, | |
409 | FUSE_SETLK = 32, | |
410 | FUSE_SETLKW = 33, | |
411 | FUSE_ACCESS = 34, | |
412 | FUSE_CREATE = 35, | |
413 | FUSE_INTERRUPT = 36, | |
414 | FUSE_BMAP = 37, | |
415 | FUSE_DESTROY = 38, | |
416 | FUSE_IOCTL = 39, | |
417 | FUSE_POLL = 40, | |
418 | FUSE_NOTIFY_REPLY = 41, | |
419 | FUSE_BATCH_FORGET = 42, | |
420 | FUSE_FALLOCATE = 43, | |
421 | FUSE_READDIRPLUS = 44, | |
422 | FUSE_RENAME2 = 45, | |
423 | FUSE_LSEEK = 46, | |
424 | FUSE_COPY_FILE_RANGE = 47, | |
151060ac TH |
425 | |
426 | /* CUSE specific operations */ | |
88bc7d50 | 427 | CUSE_INIT = 4096, |
334f485d MS |
428 | }; |
429 | ||
8599396b | 430 | enum fuse_notify_code { |
95668a69 | 431 | FUSE_NOTIFY_POLL = 1, |
3b463ae0 JM |
432 | FUSE_NOTIFY_INVAL_INODE = 2, |
433 | FUSE_NOTIFY_INVAL_ENTRY = 3, | |
a1d75f25 | 434 | FUSE_NOTIFY_STORE = 4, |
2d45ba38 | 435 | FUSE_NOTIFY_RETRIEVE = 5, |
451d0f59 | 436 | FUSE_NOTIFY_DELETE = 6, |
8599396b TH |
437 | FUSE_NOTIFY_CODE_MAX, |
438 | }; | |
439 | ||
1d3d752b MS |
440 | /* The read buffer is required to be at least 8k, but may be much larger */ |
441 | #define FUSE_MIN_READ_BUFFER 8192 | |
e5e5558e | 442 | |
0e9663ee MS |
443 | #define FUSE_COMPAT_ENTRY_OUT_SIZE 120 |
444 | ||
e5e5558e | 445 | struct fuse_entry_out { |
4c82456e MS |
446 | uint64_t nodeid; /* Inode ID */ |
447 | uint64_t generation; /* Inode generation: nodeid:gen must | |
448 | be unique for the fs's lifetime */ | |
449 | uint64_t entry_valid; /* Cache timeout for the name */ | |
450 | uint64_t attr_valid; /* Cache timeout for the attributes */ | |
451 | uint32_t entry_valid_nsec; | |
452 | uint32_t attr_valid_nsec; | |
e5e5558e MS |
453 | struct fuse_attr attr; |
454 | }; | |
455 | ||
456 | struct fuse_forget_in { | |
4c82456e | 457 | uint64_t nlookup; |
e5e5558e MS |
458 | }; |
459 | ||
02c048b9 | 460 | struct fuse_forget_one { |
4c82456e MS |
461 | uint64_t nodeid; |
462 | uint64_t nlookup; | |
02c048b9 MS |
463 | }; |
464 | ||
465 | struct fuse_batch_forget_in { | |
4c82456e MS |
466 | uint32_t count; |
467 | uint32_t dummy; | |
02c048b9 MS |
468 | }; |
469 | ||
c79e322f | 470 | struct fuse_getattr_in { |
4c82456e MS |
471 | uint32_t getattr_flags; |
472 | uint32_t dummy; | |
473 | uint64_t fh; | |
c79e322f MS |
474 | }; |
475 | ||
0e9663ee MS |
476 | #define FUSE_COMPAT_ATTR_OUT_SIZE 96 |
477 | ||
e5e5558e | 478 | struct fuse_attr_out { |
4c82456e MS |
479 | uint64_t attr_valid; /* Cache timeout for the attributes */ |
480 | uint32_t attr_valid_nsec; | |
481 | uint32_t dummy; | |
e5e5558e MS |
482 | struct fuse_attr attr; |
483 | }; | |
484 | ||
e0a43ddc MS |
485 | #define FUSE_COMPAT_MKNOD_IN_SIZE 8 |
486 | ||
9e6268db | 487 | struct fuse_mknod_in { |
4c82456e MS |
488 | uint32_t mode; |
489 | uint32_t rdev; | |
490 | uint32_t umask; | |
491 | uint32_t padding; | |
9e6268db MS |
492 | }; |
493 | ||
494 | struct fuse_mkdir_in { | |
4c82456e MS |
495 | uint32_t mode; |
496 | uint32_t umask; | |
9e6268db MS |
497 | }; |
498 | ||
499 | struct fuse_rename_in { | |
4c82456e | 500 | uint64_t newdir; |
9e6268db MS |
501 | }; |
502 | ||
1560c974 MS |
503 | struct fuse_rename2_in { |
504 | uint64_t newdir; | |
505 | uint32_t flags; | |
506 | uint32_t padding; | |
507 | }; | |
508 | ||
9e6268db | 509 | struct fuse_link_in { |
4c82456e | 510 | uint64_t oldnodeid; |
9e6268db MS |
511 | }; |
512 | ||
513 | struct fuse_setattr_in { | |
4c82456e MS |
514 | uint32_t valid; |
515 | uint32_t padding; | |
516 | uint64_t fh; | |
517 | uint64_t size; | |
518 | uint64_t lock_owner; | |
519 | uint64_t atime; | |
520 | uint64_t mtime; | |
ab9e13f7 | 521 | uint64_t ctime; |
4c82456e MS |
522 | uint32_t atimensec; |
523 | uint32_t mtimensec; | |
ab9e13f7 | 524 | uint32_t ctimensec; |
4c82456e MS |
525 | uint32_t mode; |
526 | uint32_t unused4; | |
527 | uint32_t uid; | |
528 | uint32_t gid; | |
529 | uint32_t unused5; | |
9e6268db MS |
530 | }; |
531 | ||
b6aeaded | 532 | struct fuse_open_in { |
4c82456e MS |
533 | uint32_t flags; |
534 | uint32_t unused; | |
e0a43ddc MS |
535 | }; |
536 | ||
537 | struct fuse_create_in { | |
4c82456e MS |
538 | uint32_t flags; |
539 | uint32_t mode; | |
540 | uint32_t umask; | |
541 | uint32_t padding; | |
b6aeaded MS |
542 | }; |
543 | ||
544 | struct fuse_open_out { | |
4c82456e MS |
545 | uint64_t fh; |
546 | uint32_t open_flags; | |
547 | uint32_t padding; | |
b6aeaded MS |
548 | }; |
549 | ||
550 | struct fuse_release_in { | |
4c82456e MS |
551 | uint64_t fh; |
552 | uint32_t flags; | |
553 | uint32_t release_flags; | |
554 | uint64_t lock_owner; | |
b6aeaded MS |
555 | }; |
556 | ||
557 | struct fuse_flush_in { | |
4c82456e MS |
558 | uint64_t fh; |
559 | uint32_t unused; | |
560 | uint32_t padding; | |
561 | uint64_t lock_owner; | |
b6aeaded MS |
562 | }; |
563 | ||
564 | struct fuse_read_in { | |
4c82456e MS |
565 | uint64_t fh; |
566 | uint64_t offset; | |
567 | uint32_t size; | |
568 | uint32_t read_flags; | |
569 | uint64_t lock_owner; | |
570 | uint32_t flags; | |
571 | uint32_t padding; | |
b6aeaded MS |
572 | }; |
573 | ||
f3332114 MS |
574 | #define FUSE_COMPAT_WRITE_IN_SIZE 24 |
575 | ||
b6aeaded | 576 | struct fuse_write_in { |
4c82456e MS |
577 | uint64_t fh; |
578 | uint64_t offset; | |
579 | uint32_t size; | |
580 | uint32_t write_flags; | |
581 | uint64_t lock_owner; | |
582 | uint32_t flags; | |
583 | uint32_t padding; | |
b6aeaded MS |
584 | }; |
585 | ||
586 | struct fuse_write_out { | |
4c82456e MS |
587 | uint32_t size; |
588 | uint32_t padding; | |
b6aeaded MS |
589 | }; |
590 | ||
de5f1202 MS |
591 | #define FUSE_COMPAT_STATFS_SIZE 48 |
592 | ||
e5e5558e MS |
593 | struct fuse_statfs_out { |
594 | struct fuse_kstatfs st; | |
595 | }; | |
596 | ||
b6aeaded | 597 | struct fuse_fsync_in { |
4c82456e MS |
598 | uint64_t fh; |
599 | uint32_t fsync_flags; | |
600 | uint32_t padding; | |
b6aeaded MS |
601 | }; |
602 | ||
92a8780e | 603 | struct fuse_setxattr_in { |
4c82456e MS |
604 | uint32_t size; |
605 | uint32_t flags; | |
92a8780e MS |
606 | }; |
607 | ||
608 | struct fuse_getxattr_in { | |
4c82456e MS |
609 | uint32_t size; |
610 | uint32_t padding; | |
92a8780e MS |
611 | }; |
612 | ||
613 | struct fuse_getxattr_out { | |
4c82456e MS |
614 | uint32_t size; |
615 | uint32_t padding; | |
92a8780e MS |
616 | }; |
617 | ||
71421259 | 618 | struct fuse_lk_in { |
4c82456e MS |
619 | uint64_t fh; |
620 | uint64_t owner; | |
71421259 | 621 | struct fuse_file_lock lk; |
4c82456e MS |
622 | uint32_t lk_flags; |
623 | uint32_t padding; | |
71421259 MS |
624 | }; |
625 | ||
626 | struct fuse_lk_out { | |
627 | struct fuse_file_lock lk; | |
628 | }; | |
629 | ||
31d40d74 | 630 | struct fuse_access_in { |
4c82456e MS |
631 | uint32_t mask; |
632 | uint32_t padding; | |
31d40d74 MS |
633 | }; |
634 | ||
3ec870d5 | 635 | struct fuse_init_in { |
4c82456e MS |
636 | uint32_t major; |
637 | uint32_t minor; | |
638 | uint32_t max_readahead; | |
639 | uint32_t flags; | |
334f485d MS |
640 | }; |
641 | ||
e27c9d38 MS |
642 | #define FUSE_COMPAT_INIT_OUT_SIZE 8 |
643 | #define FUSE_COMPAT_22_INIT_OUT_SIZE 24 | |
644 | ||
3ec870d5 | 645 | struct fuse_init_out { |
4c82456e MS |
646 | uint32_t major; |
647 | uint32_t minor; | |
648 | uint32_t max_readahead; | |
649 | uint32_t flags; | |
650 | uint16_t max_background; | |
651 | uint16_t congestion_threshold; | |
652 | uint32_t max_write; | |
e27c9d38 | 653 | uint32_t time_gran; |
5da784cc CS |
654 | uint16_t max_pages; |
655 | uint16_t padding; | |
656 | uint32_t unused[8]; | |
3ec870d5 MS |
657 | }; |
658 | ||
151060ac TH |
659 | #define CUSE_INIT_INFO_MAX 4096 |
660 | ||
661 | struct cuse_init_in { | |
4c82456e MS |
662 | uint32_t major; |
663 | uint32_t minor; | |
664 | uint32_t unused; | |
665 | uint32_t flags; | |
151060ac TH |
666 | }; |
667 | ||
668 | struct cuse_init_out { | |
4c82456e MS |
669 | uint32_t major; |
670 | uint32_t minor; | |
671 | uint32_t unused; | |
672 | uint32_t flags; | |
673 | uint32_t max_read; | |
674 | uint32_t max_write; | |
675 | uint32_t dev_major; /* chardev major */ | |
676 | uint32_t dev_minor; /* chardev minor */ | |
677 | uint32_t spare[10]; | |
151060ac TH |
678 | }; |
679 | ||
a4d27e75 | 680 | struct fuse_interrupt_in { |
4c82456e | 681 | uint64_t unique; |
a4d27e75 MS |
682 | }; |
683 | ||
b2d2272f | 684 | struct fuse_bmap_in { |
4c82456e MS |
685 | uint64_t block; |
686 | uint32_t blocksize; | |
687 | uint32_t padding; | |
b2d2272f MS |
688 | }; |
689 | ||
690 | struct fuse_bmap_out { | |
4c82456e | 691 | uint64_t block; |
b2d2272f MS |
692 | }; |
693 | ||
59efec7b | 694 | struct fuse_ioctl_in { |
4c82456e MS |
695 | uint64_t fh; |
696 | uint32_t flags; | |
697 | uint32_t cmd; | |
698 | uint64_t arg; | |
699 | uint32_t in_size; | |
700 | uint32_t out_size; | |
59efec7b TH |
701 | }; |
702 | ||
1baa26b2 | 703 | struct fuse_ioctl_iovec { |
4c82456e MS |
704 | uint64_t base; |
705 | uint64_t len; | |
1baa26b2 MS |
706 | }; |
707 | ||
59efec7b | 708 | struct fuse_ioctl_out { |
4c82456e MS |
709 | int32_t result; |
710 | uint32_t flags; | |
711 | uint32_t in_iovs; | |
712 | uint32_t out_iovs; | |
59efec7b TH |
713 | }; |
714 | ||
95668a69 | 715 | struct fuse_poll_in { |
4c82456e MS |
716 | uint64_t fh; |
717 | uint64_t kh; | |
718 | uint32_t flags; | |
719 | uint32_t events; | |
95668a69 TH |
720 | }; |
721 | ||
722 | struct fuse_poll_out { | |
4c82456e MS |
723 | uint32_t revents; |
724 | uint32_t padding; | |
95668a69 TH |
725 | }; |
726 | ||
727 | struct fuse_notify_poll_wakeup_out { | |
4c82456e | 728 | uint64_t kh; |
95668a69 TH |
729 | }; |
730 | ||
05ba1f08 | 731 | struct fuse_fallocate_in { |
4c82456e MS |
732 | uint64_t fh; |
733 | uint64_t offset; | |
734 | uint64_t length; | |
735 | uint32_t mode; | |
736 | uint32_t padding; | |
05ba1f08 AP |
737 | }; |
738 | ||
334f485d | 739 | struct fuse_in_header { |
4c82456e MS |
740 | uint32_t len; |
741 | uint32_t opcode; | |
742 | uint64_t unique; | |
743 | uint64_t nodeid; | |
744 | uint32_t uid; | |
745 | uint32_t gid; | |
746 | uint32_t pid; | |
747 | uint32_t padding; | |
334f485d MS |
748 | }; |
749 | ||
750 | struct fuse_out_header { | |
4c82456e MS |
751 | uint32_t len; |
752 | int32_t error; | |
753 | uint64_t unique; | |
334f485d MS |
754 | }; |
755 | ||
e5e5558e | 756 | struct fuse_dirent { |
4c82456e MS |
757 | uint64_t ino; |
758 | uint64_t off; | |
759 | uint32_t namelen; | |
760 | uint32_t type; | |
c628ee67 | 761 | char name[]; |
e5e5558e MS |
762 | }; |
763 | ||
21f3da95 | 764 | #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name) |
4c82456e MS |
765 | #define FUSE_DIRENT_ALIGN(x) \ |
766 | (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)) | |
e5e5558e MS |
767 | #define FUSE_DIRENT_SIZE(d) \ |
768 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) | |
29d434b3 | 769 | |
0b05b183 AA |
770 | struct fuse_direntplus { |
771 | struct fuse_entry_out entry_out; | |
772 | struct fuse_dirent dirent; | |
773 | }; | |
774 | ||
775 | #define FUSE_NAME_OFFSET_DIRENTPLUS \ | |
776 | offsetof(struct fuse_direntplus, dirent.name) | |
777 | #define FUSE_DIRENTPLUS_SIZE(d) \ | |
778 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen) | |
779 | ||
3b463ae0 | 780 | struct fuse_notify_inval_inode_out { |
4c82456e MS |
781 | uint64_t ino; |
782 | int64_t off; | |
783 | int64_t len; | |
3b463ae0 JM |
784 | }; |
785 | ||
786 | struct fuse_notify_inval_entry_out { | |
4c82456e MS |
787 | uint64_t parent; |
788 | uint32_t namelen; | |
789 | uint32_t padding; | |
3b463ae0 JM |
790 | }; |
791 | ||
451d0f59 | 792 | struct fuse_notify_delete_out { |
4c82456e MS |
793 | uint64_t parent; |
794 | uint64_t child; | |
795 | uint32_t namelen; | |
796 | uint32_t padding; | |
451d0f59 JM |
797 | }; |
798 | ||
a1d75f25 | 799 | struct fuse_notify_store_out { |
4c82456e MS |
800 | uint64_t nodeid; |
801 | uint64_t offset; | |
802 | uint32_t size; | |
803 | uint32_t padding; | |
a1d75f25 MS |
804 | }; |
805 | ||
2d45ba38 | 806 | struct fuse_notify_retrieve_out { |
4c82456e MS |
807 | uint64_t notify_unique; |
808 | uint64_t nodeid; | |
809 | uint64_t offset; | |
810 | uint32_t size; | |
811 | uint32_t padding; | |
2d45ba38 MS |
812 | }; |
813 | ||
814 | /* Matches the size of fuse_write_in */ | |
815 | struct fuse_notify_retrieve_in { | |
4c82456e MS |
816 | uint64_t dummy1; |
817 | uint64_t offset; | |
818 | uint32_t size; | |
819 | uint32_t dummy2; | |
820 | uint64_t dummy3; | |
821 | uint64_t dummy4; | |
2d45ba38 MS |
822 | }; |
823 | ||
00c570f4 MS |
824 | /* Device ioctls: */ |
825 | #define FUSE_DEV_IOC_CLONE _IOR(229, 0, uint32_t) | |
826 | ||
0b5da8db R |
827 | struct fuse_lseek_in { |
828 | uint64_t fh; | |
829 | uint64_t offset; | |
830 | uint32_t whence; | |
831 | uint32_t padding; | |
832 | }; | |
833 | ||
834 | struct fuse_lseek_out { | |
835 | uint64_t offset; | |
836 | }; | |
837 | ||
88bc7d50 NV |
838 | struct fuse_copy_file_range_in { |
839 | uint64_t fh_in; | |
840 | uint64_t off_in; | |
841 | uint64_t nodeid_out; | |
842 | uint64_t fh_out; | |
843 | uint64_t off_out; | |
844 | uint64_t len; | |
845 | uint64_t flags; | |
846 | }; | |
847 | ||
29d434b3 | 848 | #endif /* _LINUX_FUSE_H */ |