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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 | * | |
9de55a37 AS |
41 | * 7.1: |
42 | * - add the following messages: | |
43 | * FUSE_SETATTR, FUSE_SYMLINK, FUSE_MKNOD, FUSE_MKDIR, FUSE_UNLINK, | |
44 | * FUSE_RMDIR, FUSE_RENAME, FUSE_LINK, FUSE_OPEN, FUSE_READ, FUSE_WRITE, | |
45 | * FUSE_RELEASE, FUSE_FSYNC, FUSE_FLUSH, FUSE_SETXATTR, FUSE_GETXATTR, | |
46 | * FUSE_LISTXATTR, FUSE_REMOVEXATTR, FUSE_OPENDIR, FUSE_READDIR, | |
47 | * FUSE_RELEASEDIR | |
48 | * - add padding to messages to accommodate 32-bit servers on 64-bit kernels | |
49 | * | |
50 | * 7.2: | |
51 | * - add FOPEN_DIRECT_IO and FOPEN_KEEP_CACHE flags | |
52 | * - add FUSE_FSYNCDIR message | |
53 | * | |
54 | * 7.3: | |
55 | * - add FUSE_ACCESS message | |
56 | * - add FUSE_CREATE message | |
57 | * - add filehandle to fuse_setattr_in | |
58 | * | |
59 | * 7.4: | |
60 | * - add frsize to fuse_kstatfs | |
61 | * - clean up request size limit checking | |
62 | * | |
63 | * 7.5: | |
64 | * - add flags and max_write to fuse_init_out | |
65 | * | |
66 | * 7.6: | |
67 | * - add max_readahead to fuse_init_in and fuse_init_out | |
68 | * | |
69 | * 7.7: | |
70 | * - add FUSE_INTERRUPT message | |
71 | * - add POSIX file lock support | |
72 | * | |
73 | * 7.8: | |
74 | * - add lock_owner and flags fields to fuse_release_in | |
75 | * - add FUSE_BMAP message | |
76 | * - add FUSE_DESTROY message | |
77 | * | |
c79e322f MS |
78 | * 7.9: |
79 | * - new fuse_getattr_in input argument of GETATTR | |
a9ff4f87 | 80 | * - add lk_flags in fuse_lk_in |
f3332114 | 81 | * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in |
0e9663ee | 82 | * - add blksize field to fuse_attr |
a6643094 | 83 | * - add file flags field to fuse_read_in and fuse_write_in |
7142fd1b | 84 | * - Add ATIME_NOW and MTIME_NOW flags to fuse_setattr_in |
a7c1b990 TH |
85 | * |
86 | * 7.10 | |
87 | * - add nonseekable open flag | |
1f55ed06 MS |
88 | * |
89 | * 7.11 | |
90 | * - add IOCTL message | |
91 | * - add unsolicited notification support | |
92 | * - add POLL message and NOTIFY_POLL notification | |
e0a43ddc MS |
93 | * |
94 | * 7.12 | |
68065b84 | 95 | * - add umask flag to input argument of create, mknod and mkdir |
3b463ae0 JM |
96 | * - add notification messages for invalidation of inodes and |
97 | * directory entries | |
7a6d3c8b CH |
98 | * |
99 | * 7.13 | |
100 | * - make max number of background requests and congestion threshold | |
101 | * tunables | |
dd3bb14f MS |
102 | * |
103 | * 7.14 | |
104 | * - add splice support to fuse device | |
a1d75f25 MS |
105 | * |
106 | * 7.15 | |
107 | * - add store notify | |
2d45ba38 | 108 | * - add retrieve notify |
02c048b9 MS |
109 | * |
110 | * 7.16 | |
111 | * - add BATCH_FORGET request | |
1baa26b2 MS |
112 | * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct |
113 | * fuse_ioctl_iovec' instead of ambiguous 'struct iovec' | |
114 | * - add FUSE_IOCTL_32BIT flag | |
37fb3a30 MS |
115 | * |
116 | * 7.17 | |
117 | * - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK | |
b18da0c5 MS |
118 | * |
119 | * 7.18 | |
120 | * - add FUSE_IOCTL_DIR flag | |
451d0f59 | 121 | * - add FUSE_NOTIFY_DELETE |
05ba1f08 AP |
122 | * |
123 | * 7.19 | |
124 | * - add FUSE_FALLOCATE | |
72d0d248 BF |
125 | * |
126 | * 7.20 | |
127 | * - add FUSE_AUTO_INVAL_DATA | |
23c153e5 MS |
128 | * |
129 | * 7.21 | |
130 | * - add FUSE_READDIRPLUS | |
0415d291 | 131 | * - send the requested events in POLL request |
60b9df7a MS |
132 | * |
133 | * 7.22 | |
134 | * - add FUSE_ASYNC_DIO | |
4d99ff8f PE |
135 | * |
136 | * 7.23 | |
137 | * - add FUSE_WRITEBACK_CACHE | |
e27c9d38 MS |
138 | * - add time_gran to fuse_init_out |
139 | * - add reserved space to fuse_init_out | |
ab9e13f7 MP |
140 | * - add FATTR_CTIME |
141 | * - add ctime and ctimensec to fuse_setattr_in | |
1560c974 | 142 | * - add FUSE_RENAME2 request |
d7afaec0 | 143 | * - add FUSE_NO_OPEN_SUPPORT flag |
0b5da8db R |
144 | * |
145 | * 7.24 | |
146 | * - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support | |
5c672ab3 MS |
147 | * |
148 | * 7.25 | |
149 | * - add FUSE_PARALLEL_DIROPS | |
5e940c1d MS |
150 | * |
151 | * 7.26 | |
152 | * - add FUSE_HANDLE_KILLPRIV | |
60bcc88a | 153 | * - add FUSE_POSIX_ACL |
3b7008b2 SL |
154 | * |
155 | * 7.27 | |
156 | * - add FUSE_ABORT_ERROR | |
88bc7d50 NV |
157 | * |
158 | * 7.28 | |
159 | * - add FUSE_COPY_FILE_RANGE | |
6433b899 | 160 | * - add FOPEN_CACHE_DIR |
5da784cc | 161 | * - add FUSE_MAX_PAGES, add max_pages to init_out |
5571f1e6 | 162 | * - add FUSE_CACHE_SYMLINKS |
d9a9ea94 CA |
163 | * |
164 | * 7.29 | |
165 | * - add FUSE_NO_OPENDIR_SUPPORT flag | |
ad2ba64d KS |
166 | * |
167 | * 7.30 | |
168 | * - add FUSE_EXPLICIT_INVAL_DATA | |
6407f44a | 169 | * - add FUSE_IOCTL_COMPAT_X32 |
4a2abf99 MS |
170 | * |
171 | * 7.31 | |
172 | * - add FUSE_WRITE_KILL_PRIV flag | |
c4bb667e DDAG |
173 | * - add FUSE_SETUPMAPPING and FUSE_REMOVEMAPPING |
174 | * - add map_alignment to fuse_init_out, add FUSE_MAP_ALIGNMENT flag | |
c6ff213f MR |
175 | * |
176 | * 7.32 | |
177 | * - add flags to fuse_attr, add FUSE_ATTR_SUBMOUNT, add FUSE_SUBMOUNTS | |
63f9909f VG |
178 | * |
179 | * 7.33 | |
31792161 | 180 | * - add FUSE_HANDLE_KILLPRIV_V2, FUSE_WRITE_KILL_SUIDGID, FATTR_KILL_SUIDGID |
643a666a | 181 | * - add FUSE_OPEN_KILL_SUIDGID |
52a4c95f | 182 | * - extend fuse_setxattr_in, add FUSE_SETXATTR_EXT |
550a7d3b | 183 | * - add FUSE_SETXATTR_ACL_KILL_SGID |
2d82ab25 GK |
184 | * |
185 | * 7.34 | |
186 | * - add FUSE_SYNCFS | |
a390ccb3 AG |
187 | * |
188 | * 7.35 | |
189 | * - add FOPEN_NOFLUSH | |
53db2893 MS |
190 | * |
191 | * 7.36 | |
192 | * - extend fuse_init_in with reserved fields, add FUSE_INIT_EXT init flag | |
193 | * - add flags2 to fuse_init_in and fuse_init_out | |
3e2b6fdb VG |
194 | * - add FUSE_SECURITY_CTX init flag |
195 | * - add security context to create, mkdir, symlink, and mknod requests | |
98046f74 | 196 | * - add FUSE_HAS_INODE_DAX, FUSE_ATTR_DAX |
7d375390 MS |
197 | * |
198 | * 7.37 | |
199 | * - add FUSE_TMPFILE | |
4f8d3702 MS |
200 | * |
201 | * 7.38 | |
202 | * - add FUSE_EXPIRE_ONLY flag to fuse_notify_inval_entry | |
15352405 | 203 | * - add FOPEN_PARALLEL_DIRECT_WRITES |
15d937d7 MS |
204 | * - add total_extlen to fuse_in_header |
205 | * - add FUSE_MAX_NR_SECCTX | |
206 | * - add extension header | |
8ed7cb3f MS |
207 | * - add FUSE_EXT_GROUPS |
208 | * - add FUSE_CREATE_SUPP_GROUP | |
5cadfbd5 | 209 | * - add FUSE_HAS_EXPIRE_ONLY |
c79e322f | 210 | */ |
d8a5ba45 | 211 | |
29d434b3 TH |
212 | #ifndef _LINUX_FUSE_H |
213 | #define _LINUX_FUSE_H | |
214 | ||
4c82456e | 215 | #ifdef __KERNEL__ |
1f55ed06 | 216 | #include <linux/types.h> |
7e98d530 MS |
217 | #else |
218 | #include <stdint.h> | |
7e98d530 | 219 | #endif |
d8a5ba45 | 220 | |
37d217f0 MS |
221 | /* |
222 | * Version negotiation: | |
223 | * | |
224 | * Both the kernel and userspace send the version they support in the | |
225 | * INIT request and reply respectively. | |
226 | * | |
227 | * If the major versions match then both shall use the smallest | |
228 | * of the two minor versions for communication. | |
229 | * | |
230 | * If the kernel supports a larger major version, then userspace shall | |
231 | * reply with the major version it supports, ignore the rest of the | |
232 | * INIT message and expect a new INIT message from the kernel with a | |
233 | * matching major version. | |
234 | * | |
235 | * If the library supports a larger major version, then it shall fall | |
236 | * back to the major protocol version sent by the kernel for | |
237 | * communication and reply with that major version (and an arbitrary | |
238 | * supported minor version). | |
239 | */ | |
240 | ||
d8a5ba45 | 241 | /** Version number of this interface */ |
9e6268db | 242 | #define FUSE_KERNEL_VERSION 7 |
d8a5ba45 MS |
243 | |
244 | /** Minor version number of this interface */ | |
4f8d3702 | 245 | #define FUSE_KERNEL_MINOR_VERSION 38 |
d8a5ba45 MS |
246 | |
247 | /** The node ID of the root inode */ | |
248 | #define FUSE_ROOT_ID 1 | |
249 | ||
06663267 MS |
250 | /* Make sure all structures are padded to 64bit boundary, so 32bit |
251 | userspace works under 64bit kernels */ | |
252 | ||
d8a5ba45 | 253 | struct fuse_attr { |
4c82456e MS |
254 | uint64_t ino; |
255 | uint64_t size; | |
256 | uint64_t blocks; | |
257 | uint64_t atime; | |
258 | uint64_t mtime; | |
259 | uint64_t ctime; | |
260 | uint32_t atimensec; | |
261 | uint32_t mtimensec; | |
262 | uint32_t ctimensec; | |
263 | uint32_t mode; | |
264 | uint32_t nlink; | |
265 | uint32_t uid; | |
266 | uint32_t gid; | |
267 | uint32_t rdev; | |
268 | uint32_t blksize; | |
c6ff213f | 269 | uint32_t flags; |
d8a5ba45 MS |
270 | }; |
271 | ||
e5e5558e | 272 | struct fuse_kstatfs { |
4c82456e MS |
273 | uint64_t blocks; |
274 | uint64_t bfree; | |
275 | uint64_t bavail; | |
276 | uint64_t files; | |
277 | uint64_t ffree; | |
278 | uint32_t bsize; | |
279 | uint32_t namelen; | |
280 | uint32_t frsize; | |
281 | uint32_t padding; | |
282 | uint32_t spare[6]; | |
e5e5558e MS |
283 | }; |
284 | ||
71421259 | 285 | struct fuse_file_lock { |
4c82456e MS |
286 | uint64_t start; |
287 | uint64_t end; | |
288 | uint32_t type; | |
289 | uint32_t pid; /* tgid */ | |
71421259 MS |
290 | }; |
291 | ||
9cd68455 MS |
292 | /** |
293 | * Bitmasks for fuse_setattr_in.valid | |
294 | */ | |
9e6268db MS |
295 | #define FATTR_MODE (1 << 0) |
296 | #define FATTR_UID (1 << 1) | |
297 | #define FATTR_GID (1 << 2) | |
298 | #define FATTR_SIZE (1 << 3) | |
299 | #define FATTR_ATIME (1 << 4) | |
300 | #define FATTR_MTIME (1 << 5) | |
befc649c | 301 | #define FATTR_FH (1 << 6) |
17637cba MS |
302 | #define FATTR_ATIME_NOW (1 << 7) |
303 | #define FATTR_MTIME_NOW (1 << 8) | |
f3332114 | 304 | #define FATTR_LOCKOWNER (1 << 9) |
ab9e13f7 | 305 | #define FATTR_CTIME (1 << 10) |
31792161 | 306 | #define FATTR_KILL_SUIDGID (1 << 11) |
9e6268db | 307 | |
45323fb7 MS |
308 | /** |
309 | * Flags returned by the OPEN request | |
310 | * | |
311 | * FOPEN_DIRECT_IO: bypass page cache for this open file | |
312 | * FOPEN_KEEP_CACHE: don't invalidate the data cache on open | |
a7c1b990 | 313 | * FOPEN_NONSEEKABLE: the file is not seekable |
6433b899 | 314 | * FOPEN_CACHE_DIR: allow caching this directory |
bbd84f33 | 315 | * FOPEN_STREAM: the file is stream-like (no file position at all) |
a390ccb3 | 316 | * FOPEN_NOFLUSH: don't flush data cache on close (unless FUSE_WRITEBACK_CACHE) |
15352405 | 317 | * FOPEN_PARALLEL_DIRECT_WRITES: Allow concurrent direct writes on the same inode |
45323fb7 MS |
318 | */ |
319 | #define FOPEN_DIRECT_IO (1 << 0) | |
320 | #define FOPEN_KEEP_CACHE (1 << 1) | |
a7c1b990 | 321 | #define FOPEN_NONSEEKABLE (1 << 2) |
6433b899 | 322 | #define FOPEN_CACHE_DIR (1 << 3) |
bbd84f33 | 323 | #define FOPEN_STREAM (1 << 4) |
a390ccb3 | 324 | #define FOPEN_NOFLUSH (1 << 5) |
15352405 | 325 | #define FOPEN_PARALLEL_DIRECT_WRITES (1 << 6) |
45323fb7 | 326 | |
9cd68455 MS |
327 | /** |
328 | * INIT request/reply flags | |
33670fa2 | 329 | * |
f3840dc0 | 330 | * FUSE_ASYNC_READ: asynchronous read requests |
37fb3a30 | 331 | * FUSE_POSIX_LOCKS: remote locking for POSIX file locks |
f3840dc0 MS |
332 | * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported) |
333 | * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem | |
33670fa2 | 334 | * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." |
f3840dc0 | 335 | * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB |
e0a43ddc | 336 | * FUSE_DONT_MASK: don't apply umask to file mode on create operations |
69fe05c9 MS |
337 | * FUSE_SPLICE_WRITE: kernel supports splice write on the device |
338 | * FUSE_SPLICE_MOVE: kernel supports splice move on the device | |
339 | * FUSE_SPLICE_READ: kernel supports splice read on the device | |
37fb3a30 | 340 | * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks |
69fe05c9 | 341 | * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories |
72d0d248 | 342 | * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages |
634734b6 EW |
343 | * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) |
344 | * FUSE_READDIRPLUS_AUTO: adaptive readdirplus | |
60b9df7a | 345 | * FUSE_ASYNC_DIO: asynchronous direct I/O submission |
4d99ff8f | 346 | * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes |
d7afaec0 | 347 | * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens |
5c672ab3 | 348 | * FUSE_PARALLEL_DIROPS: allow parallel lookups and readdir |
5e940c1d | 349 | * FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on write/chown/trunc |
60bcc88a | 350 | * FUSE_POSIX_ACL: filesystem supports posix acls |
3b7008b2 | 351 | * FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED |
5da784cc | 352 | * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages |
5571f1e6 | 353 | * FUSE_CACHE_SYMLINKS: cache READLINK responses |
d9a9ea94 | 354 | * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir |
ad2ba64d | 355 | * FUSE_EXPLICIT_INVAL_DATA: only invalidate cached pages on explicit request |
fd1a1dc6 SH |
356 | * FUSE_MAP_ALIGNMENT: init_out.map_alignment contains log2(byte alignment) for |
357 | * foffset and moffset fields in struct | |
358 | * fuse_setupmapping_out and fuse_removemapping_one. | |
c6ff213f | 359 | * FUSE_SUBMOUNTS: kernel supports auto-mounting directory submounts |
63f9909f VG |
360 | * FUSE_HANDLE_KILLPRIV_V2: fs kills suid/sgid/cap on write/chown/trunc. |
361 | * Upon write/truncate suid/sgid is only killed if caller | |
362 | * does not have CAP_FSETID. Additionally upon | |
363 | * write/truncate sgid is killed only if file has group | |
364 | * execute permission. (Same as Linux VFS behavior). | |
52a4c95f | 365 | * FUSE_SETXATTR_EXT: Server supports extended struct fuse_setxattr_in |
53db2893 MS |
366 | * FUSE_INIT_EXT: extended fuse_init_in request |
367 | * FUSE_INIT_RESERVED: reserved, do not use | |
3e2b6fdb VG |
368 | * FUSE_SECURITY_CTX: add security context to create, mkdir, symlink, and |
369 | * mknod | |
98046f74 | 370 | * FUSE_HAS_INODE_DAX: use per inode DAX |
8ed7cb3f MS |
371 | * FUSE_CREATE_SUPP_GROUP: add supplementary group info to create, mkdir, |
372 | * symlink and mknod (single group that matches parent) | |
5cadfbd5 | 373 | * FUSE_HAS_EXPIRE_ONLY: kernel supports expiry-only entry invalidation |
9cd68455 MS |
374 | */ |
375 | #define FUSE_ASYNC_READ (1 << 0) | |
71421259 | 376 | #define FUSE_POSIX_LOCKS (1 << 1) |
c79e322f | 377 | #define FUSE_FILE_OPS (1 << 2) |
6ff958ed | 378 | #define FUSE_ATOMIC_O_TRUNC (1 << 3) |
33670fa2 | 379 | #define FUSE_EXPORT_SUPPORT (1 << 4) |
78bb6cb9 | 380 | #define FUSE_BIG_WRITES (1 << 5) |
e0a43ddc | 381 | #define FUSE_DONT_MASK (1 << 6) |
69fe05c9 MS |
382 | #define FUSE_SPLICE_WRITE (1 << 7) |
383 | #define FUSE_SPLICE_MOVE (1 << 8) | |
384 | #define FUSE_SPLICE_READ (1 << 9) | |
37fb3a30 | 385 | #define FUSE_FLOCK_LOCKS (1 << 10) |
69fe05c9 | 386 | #define FUSE_HAS_IOCTL_DIR (1 << 11) |
72d0d248 | 387 | #define FUSE_AUTO_INVAL_DATA (1 << 12) |
0b05b183 | 388 | #define FUSE_DO_READDIRPLUS (1 << 13) |
634734b6 | 389 | #define FUSE_READDIRPLUS_AUTO (1 << 14) |
60b9df7a | 390 | #define FUSE_ASYNC_DIO (1 << 15) |
4d99ff8f | 391 | #define FUSE_WRITEBACK_CACHE (1 << 16) |
d7afaec0 | 392 | #define FUSE_NO_OPEN_SUPPORT (1 << 17) |
5c672ab3 | 393 | #define FUSE_PARALLEL_DIROPS (1 << 18) |
5e940c1d | 394 | #define FUSE_HANDLE_KILLPRIV (1 << 19) |
60bcc88a | 395 | #define FUSE_POSIX_ACL (1 << 20) |
3b7008b2 | 396 | #define FUSE_ABORT_ERROR (1 << 21) |
5da784cc | 397 | #define FUSE_MAX_PAGES (1 << 22) |
5571f1e6 | 398 | #define FUSE_CACHE_SYMLINKS (1 << 23) |
d9a9ea94 | 399 | #define FUSE_NO_OPENDIR_SUPPORT (1 << 24) |
ad2ba64d | 400 | #define FUSE_EXPLICIT_INVAL_DATA (1 << 25) |
c4bb667e | 401 | #define FUSE_MAP_ALIGNMENT (1 << 26) |
c6ff213f | 402 | #define FUSE_SUBMOUNTS (1 << 27) |
63f9909f | 403 | #define FUSE_HANDLE_KILLPRIV_V2 (1 << 28) |
52a4c95f | 404 | #define FUSE_SETXATTR_EXT (1 << 29) |
53db2893 MS |
405 | #define FUSE_INIT_EXT (1 << 30) |
406 | #define FUSE_INIT_RESERVED (1 << 31) | |
407 | /* bits 32..63 get shifted down 32 bits into the flags2 field */ | |
3e2b6fdb | 408 | #define FUSE_SECURITY_CTX (1ULL << 32) |
98046f74 | 409 | #define FUSE_HAS_INODE_DAX (1ULL << 33) |
8ed7cb3f | 410 | #define FUSE_CREATE_SUPP_GROUP (1ULL << 34) |
5cadfbd5 | 411 | #define FUSE_HAS_EXPIRE_ONLY (1ULL << 35) |
9cd68455 | 412 | |
151060ac TH |
413 | /** |
414 | * CUSE INIT request/reply flags | |
415 | * | |
416 | * CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl | |
417 | */ | |
418 | #define CUSE_UNRESTRICTED_IOCTL (1 << 0) | |
419 | ||
e9168c18 MS |
420 | /** |
421 | * Release flags | |
422 | */ | |
423 | #define FUSE_RELEASE_FLUSH (1 << 0) | |
37fb3a30 | 424 | #define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1) |
e9168c18 | 425 | |
c79e322f MS |
426 | /** |
427 | * Getattr flags | |
428 | */ | |
429 | #define FUSE_GETATTR_FH (1 << 0) | |
430 | ||
a9ff4f87 MS |
431 | /** |
432 | * Lock flags | |
433 | */ | |
434 | #define FUSE_LK_FLOCK (1 << 0) | |
435 | ||
b25e82e5 MS |
436 | /** |
437 | * WRITE flags | |
438 | * | |
439 | * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed | |
f3332114 | 440 | * FUSE_WRITE_LOCKOWNER: lock_owner field is valid |
10c52c84 | 441 | * FUSE_WRITE_KILL_SUIDGID: kill suid and sgid bits |
b25e82e5 MS |
442 | */ |
443 | #define FUSE_WRITE_CACHE (1 << 0) | |
f3332114 | 444 | #define FUSE_WRITE_LOCKOWNER (1 << 1) |
10c52c84 MS |
445 | #define FUSE_WRITE_KILL_SUIDGID (1 << 2) |
446 | ||
447 | /* Obsolete alias; this flag implies killing suid/sgid only. */ | |
448 | #define FUSE_WRITE_KILL_PRIV FUSE_WRITE_KILL_SUIDGID | |
f3332114 MS |
449 | |
450 | /** | |
451 | * Read flags | |
452 | */ | |
453 | #define FUSE_READ_LOCKOWNER (1 << 1) | |
b25e82e5 | 454 | |
59efec7b TH |
455 | /** |
456 | * Ioctl flags | |
457 | * | |
458 | * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine | |
459 | * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed | |
460 | * FUSE_IOCTL_RETRY: retry with new iovecs | |
1baa26b2 | 461 | * FUSE_IOCTL_32BIT: 32bit ioctl |
b18da0c5 | 462 | * FUSE_IOCTL_DIR: is a directory |
6407f44a | 463 | * FUSE_IOCTL_COMPAT_X32: x32 compat ioctl on 64bit machine (64bit time_t) |
59efec7b TH |
464 | * |
465 | * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs | |
466 | */ | |
467 | #define FUSE_IOCTL_COMPAT (1 << 0) | |
468 | #define FUSE_IOCTL_UNRESTRICTED (1 << 1) | |
469 | #define FUSE_IOCTL_RETRY (1 << 2) | |
1baa26b2 | 470 | #define FUSE_IOCTL_32BIT (1 << 3) |
b18da0c5 | 471 | #define FUSE_IOCTL_DIR (1 << 4) |
6407f44a | 472 | #define FUSE_IOCTL_COMPAT_X32 (1 << 5) |
59efec7b TH |
473 | |
474 | #define FUSE_IOCTL_MAX_IOV 256 | |
475 | ||
95668a69 TH |
476 | /** |
477 | * Poll flags | |
478 | * | |
479 | * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify | |
480 | */ | |
481 | #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0) | |
482 | ||
154603fe AS |
483 | /** |
484 | * Fsync flags | |
485 | * | |
486 | * FUSE_FSYNC_FDATASYNC: Sync data only, not metadata | |
487 | */ | |
488 | #define FUSE_FSYNC_FDATASYNC (1 << 0) | |
489 | ||
c6ff213f MR |
490 | /** |
491 | * fuse_attr flags | |
492 | * | |
493 | * FUSE_ATTR_SUBMOUNT: Object is a submount root | |
98046f74 | 494 | * FUSE_ATTR_DAX: Enable DAX for this file in per inode DAX mode |
c6ff213f MR |
495 | */ |
496 | #define FUSE_ATTR_SUBMOUNT (1 << 0) | |
98046f74 | 497 | #define FUSE_ATTR_DAX (1 << 1) |
c6ff213f | 498 | |
643a666a VG |
499 | /** |
500 | * Open flags | |
501 | * FUSE_OPEN_KILL_SUIDGID: Kill suid and sgid if executable | |
502 | */ | |
503 | #define FUSE_OPEN_KILL_SUIDGID (1 << 0) | |
504 | ||
550a7d3b VG |
505 | /** |
506 | * setxattr flags | |
507 | * FUSE_SETXATTR_ACL_KILL_SGID: Clear SGID when system.posix_acl_access is set | |
508 | */ | |
509 | #define FUSE_SETXATTR_ACL_KILL_SGID (1 << 0) | |
510 | ||
4f8d3702 MS |
511 | /** |
512 | * notify_inval_entry flags | |
513 | * FUSE_EXPIRE_ONLY | |
514 | */ | |
515 | #define FUSE_EXPIRE_ONLY (1 << 0) | |
516 | ||
15d937d7 MS |
517 | /** |
518 | * extension type | |
519 | * FUSE_MAX_NR_SECCTX: maximum value of &fuse_secctx_header.nr_secctx | |
8ed7cb3f | 520 | * FUSE_EXT_GROUPS: &fuse_supp_groups extension |
15d937d7 MS |
521 | */ |
522 | enum fuse_ext_type { | |
523 | /* Types 0..31 are reserved for fuse_secctx_header */ | |
524 | FUSE_MAX_NR_SECCTX = 31, | |
8ed7cb3f | 525 | FUSE_EXT_GROUPS = 32, |
15d937d7 MS |
526 | }; |
527 | ||
334f485d | 528 | enum fuse_opcode { |
88bc7d50 NV |
529 | FUSE_LOOKUP = 1, |
530 | FUSE_FORGET = 2, /* no reply */ | |
531 | FUSE_GETATTR = 3, | |
532 | FUSE_SETATTR = 4, | |
533 | FUSE_READLINK = 5, | |
534 | FUSE_SYMLINK = 6, | |
535 | FUSE_MKNOD = 8, | |
536 | FUSE_MKDIR = 9, | |
537 | FUSE_UNLINK = 10, | |
538 | FUSE_RMDIR = 11, | |
539 | FUSE_RENAME = 12, | |
540 | FUSE_LINK = 13, | |
541 | FUSE_OPEN = 14, | |
542 | FUSE_READ = 15, | |
543 | FUSE_WRITE = 16, | |
544 | FUSE_STATFS = 17, | |
545 | FUSE_RELEASE = 18, | |
546 | FUSE_FSYNC = 20, | |
547 | FUSE_SETXATTR = 21, | |
548 | FUSE_GETXATTR = 22, | |
549 | FUSE_LISTXATTR = 23, | |
550 | FUSE_REMOVEXATTR = 24, | |
551 | FUSE_FLUSH = 25, | |
552 | FUSE_INIT = 26, | |
553 | FUSE_OPENDIR = 27, | |
554 | FUSE_READDIR = 28, | |
555 | FUSE_RELEASEDIR = 29, | |
556 | FUSE_FSYNCDIR = 30, | |
557 | FUSE_GETLK = 31, | |
558 | FUSE_SETLK = 32, | |
559 | FUSE_SETLKW = 33, | |
560 | FUSE_ACCESS = 34, | |
561 | FUSE_CREATE = 35, | |
562 | FUSE_INTERRUPT = 36, | |
563 | FUSE_BMAP = 37, | |
564 | FUSE_DESTROY = 38, | |
565 | FUSE_IOCTL = 39, | |
566 | FUSE_POLL = 40, | |
567 | FUSE_NOTIFY_REPLY = 41, | |
568 | FUSE_BATCH_FORGET = 42, | |
569 | FUSE_FALLOCATE = 43, | |
570 | FUSE_READDIRPLUS = 44, | |
571 | FUSE_RENAME2 = 45, | |
572 | FUSE_LSEEK = 46, | |
573 | FUSE_COPY_FILE_RANGE = 47, | |
c4bb667e DDAG |
574 | FUSE_SETUPMAPPING = 48, |
575 | FUSE_REMOVEMAPPING = 49, | |
2d82ab25 | 576 | FUSE_SYNCFS = 50, |
7d375390 | 577 | FUSE_TMPFILE = 51, |
151060ac TH |
578 | |
579 | /* CUSE specific operations */ | |
88bc7d50 | 580 | CUSE_INIT = 4096, |
501ae8ec MT |
581 | |
582 | /* Reserved opcodes: helpful to detect structure endian-ness */ | |
583 | CUSE_INIT_BSWAP_RESERVED = 1048576, /* CUSE_INIT << 8 */ | |
584 | FUSE_INIT_BSWAP_RESERVED = 436207616, /* FUSE_INIT << 24 */ | |
334f485d MS |
585 | }; |
586 | ||
8599396b | 587 | enum fuse_notify_code { |
95668a69 | 588 | FUSE_NOTIFY_POLL = 1, |
3b463ae0 JM |
589 | FUSE_NOTIFY_INVAL_INODE = 2, |
590 | FUSE_NOTIFY_INVAL_ENTRY = 3, | |
a1d75f25 | 591 | FUSE_NOTIFY_STORE = 4, |
2d45ba38 | 592 | FUSE_NOTIFY_RETRIEVE = 5, |
451d0f59 | 593 | FUSE_NOTIFY_DELETE = 6, |
8599396b TH |
594 | FUSE_NOTIFY_CODE_MAX, |
595 | }; | |
596 | ||
1d3d752b MS |
597 | /* The read buffer is required to be at least 8k, but may be much larger */ |
598 | #define FUSE_MIN_READ_BUFFER 8192 | |
e5e5558e | 599 | |
0e9663ee MS |
600 | #define FUSE_COMPAT_ENTRY_OUT_SIZE 120 |
601 | ||
e5e5558e | 602 | struct fuse_entry_out { |
4c82456e MS |
603 | uint64_t nodeid; /* Inode ID */ |
604 | uint64_t generation; /* Inode generation: nodeid:gen must | |
605 | be unique for the fs's lifetime */ | |
606 | uint64_t entry_valid; /* Cache timeout for the name */ | |
607 | uint64_t attr_valid; /* Cache timeout for the attributes */ | |
608 | uint32_t entry_valid_nsec; | |
609 | uint32_t attr_valid_nsec; | |
e5e5558e MS |
610 | struct fuse_attr attr; |
611 | }; | |
612 | ||
613 | struct fuse_forget_in { | |
4c82456e | 614 | uint64_t nlookup; |
e5e5558e MS |
615 | }; |
616 | ||
02c048b9 | 617 | struct fuse_forget_one { |
4c82456e MS |
618 | uint64_t nodeid; |
619 | uint64_t nlookup; | |
02c048b9 MS |
620 | }; |
621 | ||
622 | struct fuse_batch_forget_in { | |
4c82456e MS |
623 | uint32_t count; |
624 | uint32_t dummy; | |
02c048b9 MS |
625 | }; |
626 | ||
c79e322f | 627 | struct fuse_getattr_in { |
4c82456e MS |
628 | uint32_t getattr_flags; |
629 | uint32_t dummy; | |
630 | uint64_t fh; | |
c79e322f MS |
631 | }; |
632 | ||
0e9663ee MS |
633 | #define FUSE_COMPAT_ATTR_OUT_SIZE 96 |
634 | ||
e5e5558e | 635 | struct fuse_attr_out { |
4c82456e MS |
636 | uint64_t attr_valid; /* Cache timeout for the attributes */ |
637 | uint32_t attr_valid_nsec; | |
638 | uint32_t dummy; | |
e5e5558e MS |
639 | struct fuse_attr attr; |
640 | }; | |
641 | ||
e0a43ddc MS |
642 | #define FUSE_COMPAT_MKNOD_IN_SIZE 8 |
643 | ||
9e6268db | 644 | struct fuse_mknod_in { |
4c82456e MS |
645 | uint32_t mode; |
646 | uint32_t rdev; | |
647 | uint32_t umask; | |
648 | uint32_t padding; | |
9e6268db MS |
649 | }; |
650 | ||
651 | struct fuse_mkdir_in { | |
4c82456e MS |
652 | uint32_t mode; |
653 | uint32_t umask; | |
9e6268db MS |
654 | }; |
655 | ||
656 | struct fuse_rename_in { | |
4c82456e | 657 | uint64_t newdir; |
9e6268db MS |
658 | }; |
659 | ||
1560c974 MS |
660 | struct fuse_rename2_in { |
661 | uint64_t newdir; | |
662 | uint32_t flags; | |
663 | uint32_t padding; | |
664 | }; | |
665 | ||
9e6268db | 666 | struct fuse_link_in { |
4c82456e | 667 | uint64_t oldnodeid; |
9e6268db MS |
668 | }; |
669 | ||
670 | struct fuse_setattr_in { | |
4c82456e MS |
671 | uint32_t valid; |
672 | uint32_t padding; | |
673 | uint64_t fh; | |
674 | uint64_t size; | |
675 | uint64_t lock_owner; | |
676 | uint64_t atime; | |
677 | uint64_t mtime; | |
ab9e13f7 | 678 | uint64_t ctime; |
4c82456e MS |
679 | uint32_t atimensec; |
680 | uint32_t mtimensec; | |
ab9e13f7 | 681 | uint32_t ctimensec; |
4c82456e MS |
682 | uint32_t mode; |
683 | uint32_t unused4; | |
684 | uint32_t uid; | |
685 | uint32_t gid; | |
686 | uint32_t unused5; | |
9e6268db MS |
687 | }; |
688 | ||
b6aeaded | 689 | struct fuse_open_in { |
4c82456e | 690 | uint32_t flags; |
643a666a | 691 | uint32_t open_flags; /* FUSE_OPEN_... */ |
e0a43ddc MS |
692 | }; |
693 | ||
694 | struct fuse_create_in { | |
4c82456e MS |
695 | uint32_t flags; |
696 | uint32_t mode; | |
697 | uint32_t umask; | |
643a666a | 698 | uint32_t open_flags; /* FUSE_OPEN_... */ |
b6aeaded MS |
699 | }; |
700 | ||
701 | struct fuse_open_out { | |
4c82456e MS |
702 | uint64_t fh; |
703 | uint32_t open_flags; | |
704 | uint32_t padding; | |
b6aeaded MS |
705 | }; |
706 | ||
707 | struct fuse_release_in { | |
4c82456e MS |
708 | uint64_t fh; |
709 | uint32_t flags; | |
710 | uint32_t release_flags; | |
711 | uint64_t lock_owner; | |
b6aeaded MS |
712 | }; |
713 | ||
714 | struct fuse_flush_in { | |
4c82456e MS |
715 | uint64_t fh; |
716 | uint32_t unused; | |
717 | uint32_t padding; | |
718 | uint64_t lock_owner; | |
b6aeaded MS |
719 | }; |
720 | ||
721 | struct fuse_read_in { | |
4c82456e MS |
722 | uint64_t fh; |
723 | uint64_t offset; | |
724 | uint32_t size; | |
725 | uint32_t read_flags; | |
726 | uint64_t lock_owner; | |
727 | uint32_t flags; | |
728 | uint32_t padding; | |
b6aeaded MS |
729 | }; |
730 | ||
f3332114 MS |
731 | #define FUSE_COMPAT_WRITE_IN_SIZE 24 |
732 | ||
b6aeaded | 733 | struct fuse_write_in { |
4c82456e MS |
734 | uint64_t fh; |
735 | uint64_t offset; | |
736 | uint32_t size; | |
737 | uint32_t write_flags; | |
738 | uint64_t lock_owner; | |
739 | uint32_t flags; | |
740 | uint32_t padding; | |
b6aeaded MS |
741 | }; |
742 | ||
743 | struct fuse_write_out { | |
4c82456e MS |
744 | uint32_t size; |
745 | uint32_t padding; | |
b6aeaded MS |
746 | }; |
747 | ||
de5f1202 MS |
748 | #define FUSE_COMPAT_STATFS_SIZE 48 |
749 | ||
e5e5558e MS |
750 | struct fuse_statfs_out { |
751 | struct fuse_kstatfs st; | |
752 | }; | |
753 | ||
b6aeaded | 754 | struct fuse_fsync_in { |
4c82456e MS |
755 | uint64_t fh; |
756 | uint32_t fsync_flags; | |
757 | uint32_t padding; | |
b6aeaded MS |
758 | }; |
759 | ||
52a4c95f VG |
760 | #define FUSE_COMPAT_SETXATTR_IN_SIZE 8 |
761 | ||
92a8780e | 762 | struct fuse_setxattr_in { |
4c82456e MS |
763 | uint32_t size; |
764 | uint32_t flags; | |
52a4c95f VG |
765 | uint32_t setxattr_flags; |
766 | uint32_t padding; | |
92a8780e MS |
767 | }; |
768 | ||
769 | struct fuse_getxattr_in { | |
4c82456e MS |
770 | uint32_t size; |
771 | uint32_t padding; | |
92a8780e MS |
772 | }; |
773 | ||
774 | struct fuse_getxattr_out { | |
4c82456e MS |
775 | uint32_t size; |
776 | uint32_t padding; | |
92a8780e MS |
777 | }; |
778 | ||
71421259 | 779 | struct fuse_lk_in { |
4c82456e MS |
780 | uint64_t fh; |
781 | uint64_t owner; | |
71421259 | 782 | struct fuse_file_lock lk; |
4c82456e MS |
783 | uint32_t lk_flags; |
784 | uint32_t padding; | |
71421259 MS |
785 | }; |
786 | ||
787 | struct fuse_lk_out { | |
788 | struct fuse_file_lock lk; | |
789 | }; | |
790 | ||
31d40d74 | 791 | struct fuse_access_in { |
4c82456e MS |
792 | uint32_t mask; |
793 | uint32_t padding; | |
31d40d74 MS |
794 | }; |
795 | ||
3ec870d5 | 796 | struct fuse_init_in { |
4c82456e MS |
797 | uint32_t major; |
798 | uint32_t minor; | |
799 | uint32_t max_readahead; | |
800 | uint32_t flags; | |
53db2893 MS |
801 | uint32_t flags2; |
802 | uint32_t unused[11]; | |
334f485d MS |
803 | }; |
804 | ||
e27c9d38 MS |
805 | #define FUSE_COMPAT_INIT_OUT_SIZE 8 |
806 | #define FUSE_COMPAT_22_INIT_OUT_SIZE 24 | |
807 | ||
3ec870d5 | 808 | struct fuse_init_out { |
4c82456e MS |
809 | uint32_t major; |
810 | uint32_t minor; | |
811 | uint32_t max_readahead; | |
812 | uint32_t flags; | |
813 | uint16_t max_background; | |
814 | uint16_t congestion_threshold; | |
815 | uint32_t max_write; | |
e27c9d38 | 816 | uint32_t time_gran; |
5da784cc | 817 | uint16_t max_pages; |
c4bb667e | 818 | uint16_t map_alignment; |
53db2893 MS |
819 | uint32_t flags2; |
820 | uint32_t unused[7]; | |
3ec870d5 MS |
821 | }; |
822 | ||
151060ac TH |
823 | #define CUSE_INIT_INFO_MAX 4096 |
824 | ||
825 | struct cuse_init_in { | |
4c82456e MS |
826 | uint32_t major; |
827 | uint32_t minor; | |
828 | uint32_t unused; | |
829 | uint32_t flags; | |
151060ac TH |
830 | }; |
831 | ||
832 | struct cuse_init_out { | |
4c82456e MS |
833 | uint32_t major; |
834 | uint32_t minor; | |
835 | uint32_t unused; | |
836 | uint32_t flags; | |
837 | uint32_t max_read; | |
838 | uint32_t max_write; | |
839 | uint32_t dev_major; /* chardev major */ | |
840 | uint32_t dev_minor; /* chardev minor */ | |
841 | uint32_t spare[10]; | |
151060ac TH |
842 | }; |
843 | ||
a4d27e75 | 844 | struct fuse_interrupt_in { |
4c82456e | 845 | uint64_t unique; |
a4d27e75 MS |
846 | }; |
847 | ||
b2d2272f | 848 | struct fuse_bmap_in { |
4c82456e MS |
849 | uint64_t block; |
850 | uint32_t blocksize; | |
851 | uint32_t padding; | |
b2d2272f MS |
852 | }; |
853 | ||
854 | struct fuse_bmap_out { | |
4c82456e | 855 | uint64_t block; |
b2d2272f MS |
856 | }; |
857 | ||
59efec7b | 858 | struct fuse_ioctl_in { |
4c82456e MS |
859 | uint64_t fh; |
860 | uint32_t flags; | |
861 | uint32_t cmd; | |
862 | uint64_t arg; | |
863 | uint32_t in_size; | |
864 | uint32_t out_size; | |
59efec7b TH |
865 | }; |
866 | ||
1baa26b2 | 867 | struct fuse_ioctl_iovec { |
4c82456e MS |
868 | uint64_t base; |
869 | uint64_t len; | |
1baa26b2 MS |
870 | }; |
871 | ||
59efec7b | 872 | struct fuse_ioctl_out { |
4c82456e MS |
873 | int32_t result; |
874 | uint32_t flags; | |
875 | uint32_t in_iovs; | |
876 | uint32_t out_iovs; | |
59efec7b TH |
877 | }; |
878 | ||
95668a69 | 879 | struct fuse_poll_in { |
4c82456e MS |
880 | uint64_t fh; |
881 | uint64_t kh; | |
882 | uint32_t flags; | |
883 | uint32_t events; | |
95668a69 TH |
884 | }; |
885 | ||
886 | struct fuse_poll_out { | |
4c82456e MS |
887 | uint32_t revents; |
888 | uint32_t padding; | |
95668a69 TH |
889 | }; |
890 | ||
891 | struct fuse_notify_poll_wakeup_out { | |
4c82456e | 892 | uint64_t kh; |
95668a69 TH |
893 | }; |
894 | ||
05ba1f08 | 895 | struct fuse_fallocate_in { |
4c82456e MS |
896 | uint64_t fh; |
897 | uint64_t offset; | |
898 | uint64_t length; | |
899 | uint32_t mode; | |
900 | uint32_t padding; | |
05ba1f08 AP |
901 | }; |
902 | ||
334f485d | 903 | struct fuse_in_header { |
4c82456e MS |
904 | uint32_t len; |
905 | uint32_t opcode; | |
906 | uint64_t unique; | |
907 | uint64_t nodeid; | |
908 | uint32_t uid; | |
909 | uint32_t gid; | |
910 | uint32_t pid; | |
15d937d7 MS |
911 | uint16_t total_extlen; /* length of extensions in 8byte units */ |
912 | uint16_t padding; | |
334f485d MS |
913 | }; |
914 | ||
915 | struct fuse_out_header { | |
4c82456e MS |
916 | uint32_t len; |
917 | int32_t error; | |
918 | uint64_t unique; | |
334f485d MS |
919 | }; |
920 | ||
e5e5558e | 921 | struct fuse_dirent { |
4c82456e MS |
922 | uint64_t ino; |
923 | uint64_t off; | |
924 | uint32_t namelen; | |
925 | uint32_t type; | |
c628ee67 | 926 | char name[]; |
e5e5558e MS |
927 | }; |
928 | ||
3e2b6fdb VG |
929 | /* Align variable length records to 64bit boundary */ |
930 | #define FUSE_REC_ALIGN(x) \ | |
4c82456e | 931 | (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)) |
3e2b6fdb VG |
932 | |
933 | #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name) | |
934 | #define FUSE_DIRENT_ALIGN(x) FUSE_REC_ALIGN(x) | |
e5e5558e MS |
935 | #define FUSE_DIRENT_SIZE(d) \ |
936 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) | |
29d434b3 | 937 | |
0b05b183 AA |
938 | struct fuse_direntplus { |
939 | struct fuse_entry_out entry_out; | |
940 | struct fuse_dirent dirent; | |
941 | }; | |
942 | ||
943 | #define FUSE_NAME_OFFSET_DIRENTPLUS \ | |
944 | offsetof(struct fuse_direntplus, dirent.name) | |
945 | #define FUSE_DIRENTPLUS_SIZE(d) \ | |
946 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen) | |
947 | ||
3b463ae0 | 948 | struct fuse_notify_inval_inode_out { |
4c82456e MS |
949 | uint64_t ino; |
950 | int64_t off; | |
951 | int64_t len; | |
3b463ae0 JM |
952 | }; |
953 | ||
954 | struct fuse_notify_inval_entry_out { | |
4c82456e MS |
955 | uint64_t parent; |
956 | uint32_t namelen; | |
4f8d3702 | 957 | uint32_t flags; |
3b463ae0 JM |
958 | }; |
959 | ||
451d0f59 | 960 | struct fuse_notify_delete_out { |
4c82456e MS |
961 | uint64_t parent; |
962 | uint64_t child; | |
963 | uint32_t namelen; | |
964 | uint32_t padding; | |
451d0f59 JM |
965 | }; |
966 | ||
a1d75f25 | 967 | struct fuse_notify_store_out { |
4c82456e MS |
968 | uint64_t nodeid; |
969 | uint64_t offset; | |
970 | uint32_t size; | |
971 | uint32_t padding; | |
a1d75f25 MS |
972 | }; |
973 | ||
2d45ba38 | 974 | struct fuse_notify_retrieve_out { |
4c82456e MS |
975 | uint64_t notify_unique; |
976 | uint64_t nodeid; | |
977 | uint64_t offset; | |
978 | uint32_t size; | |
979 | uint32_t padding; | |
2d45ba38 MS |
980 | }; |
981 | ||
982 | /* Matches the size of fuse_write_in */ | |
983 | struct fuse_notify_retrieve_in { | |
4c82456e MS |
984 | uint64_t dummy1; |
985 | uint64_t offset; | |
986 | uint32_t size; | |
987 | uint32_t dummy2; | |
988 | uint64_t dummy3; | |
989 | uint64_t dummy4; | |
2d45ba38 MS |
990 | }; |
991 | ||
00c570f4 | 992 | /* Device ioctls: */ |
f8425c93 AB |
993 | #define FUSE_DEV_IOC_MAGIC 229 |
994 | #define FUSE_DEV_IOC_CLONE _IOR(FUSE_DEV_IOC_MAGIC, 0, uint32_t) | |
00c570f4 | 995 | |
0b5da8db R |
996 | struct fuse_lseek_in { |
997 | uint64_t fh; | |
998 | uint64_t offset; | |
999 | uint32_t whence; | |
1000 | uint32_t padding; | |
1001 | }; | |
1002 | ||
1003 | struct fuse_lseek_out { | |
1004 | uint64_t offset; | |
1005 | }; | |
1006 | ||
88bc7d50 NV |
1007 | struct fuse_copy_file_range_in { |
1008 | uint64_t fh_in; | |
1009 | uint64_t off_in; | |
1010 | uint64_t nodeid_out; | |
1011 | uint64_t fh_out; | |
1012 | uint64_t off_out; | |
1013 | uint64_t len; | |
1014 | uint64_t flags; | |
1015 | }; | |
1016 | ||
ceec02d4 | 1017 | #define FUSE_SETUPMAPPING_FLAG_WRITE (1ull << 0) |
c2d0ad00 | 1018 | #define FUSE_SETUPMAPPING_FLAG_READ (1ull << 1) |
ceec02d4 VG |
1019 | struct fuse_setupmapping_in { |
1020 | /* An already open handle */ | |
1021 | uint64_t fh; | |
1022 | /* Offset into the file to start the mapping */ | |
1023 | uint64_t foffset; | |
1024 | /* Length of mapping required */ | |
1025 | uint64_t len; | |
1026 | /* Flags, FUSE_SETUPMAPPING_FLAG_* */ | |
1027 | uint64_t flags; | |
1028 | /* Offset in Memory Window */ | |
1029 | uint64_t moffset; | |
1030 | }; | |
1031 | ||
1032 | struct fuse_removemapping_in { | |
1033 | /* number of fuse_removemapping_one follows */ | |
1034 | uint32_t count; | |
1035 | }; | |
1036 | ||
1037 | struct fuse_removemapping_one { | |
1038 | /* Offset into the dax window start the unmapping */ | |
1039 | uint64_t moffset; | |
1040 | /* Length of mapping required */ | |
1041 | uint64_t len; | |
1042 | }; | |
1043 | ||
1044 | #define FUSE_REMOVEMAPPING_MAX_ENTRY \ | |
1045 | (PAGE_SIZE / sizeof(struct fuse_removemapping_one)) | |
1046 | ||
2d82ab25 GK |
1047 | struct fuse_syncfs_in { |
1048 | uint64_t padding; | |
1049 | }; | |
1050 | ||
3e2b6fdb VG |
1051 | /* |
1052 | * For each security context, send fuse_secctx with size of security context | |
1053 | * fuse_secctx will be followed by security context name and this in turn | |
1054 | * will be followed by actual context label. | |
1055 | * fuse_secctx, name, context | |
1056 | */ | |
1057 | struct fuse_secctx { | |
1058 | uint32_t size; | |
1059 | uint32_t padding; | |
1060 | }; | |
1061 | ||
1062 | /* | |
1063 | * Contains the information about how many fuse_secctx structures are being | |
1064 | * sent and what's the total size of all security contexts (including | |
1065 | * size of fuse_secctx_header). | |
1066 | * | |
1067 | */ | |
1068 | struct fuse_secctx_header { | |
1069 | uint32_t size; | |
1070 | uint32_t nr_secctx; | |
1071 | }; | |
1072 | ||
15d937d7 MS |
1073 | /** |
1074 | * struct fuse_ext_header - extension header | |
1075 | * @size: total size of this extension including this header | |
1076 | * @type: type of extension | |
1077 | * | |
1078 | * This is made compatible with fuse_secctx_header by using type values > | |
1079 | * FUSE_MAX_NR_SECCTX | |
1080 | */ | |
1081 | struct fuse_ext_header { | |
1082 | uint32_t size; | |
1083 | uint32_t type; | |
1084 | }; | |
1085 | ||
8ed7cb3f MS |
1086 | /** |
1087 | * struct fuse_supp_groups - Supplementary group extension | |
1088 | * @nr_groups: number of supplementary groups | |
1089 | * @groups: flexible array of group IDs | |
1090 | */ | |
1091 | struct fuse_supp_groups { | |
1092 | uint32_t nr_groups; | |
1093 | uint32_t groups[]; | |
1094 | }; | |
1095 | ||
29d434b3 | 1096 | #endif /* _LINUX_FUSE_H */ |