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d9b57aa3 JA |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * io_uring opcode handling table | |
4 | */ | |
5 | #include <linux/kernel.h> | |
6 | #include <linux/errno.h> | |
7 | #include <linux/fs.h> | |
8 | #include <linux/file.h> | |
9 | #include <linux/io_uring.h> | |
10 | ||
d9b57aa3 JA |
11 | #include "io_uring.h" |
12 | #include "opdef.h" | |
13 | #include "refs.h" | |
14 | #include "tctx.h" | |
15 | #include "sqpoll.h" | |
16 | #include "fdinfo.h" | |
17 | #include "kbuf.h" | |
18 | #include "rsrc.h" | |
19 | ||
20 | #include "xattr.h" | |
21 | #include "nop.h" | |
22 | #include "fs.h" | |
23 | #include "splice.h" | |
24 | #include "sync.h" | |
25 | #include "advise.h" | |
26 | #include "openclose.h" | |
27 | #include "uring_cmd.h" | |
28 | #include "epoll.h" | |
29 | #include "statx.h" | |
30 | #include "net.h" | |
31 | #include "msg_ring.h" | |
32 | #include "timeout.h" | |
33 | #include "poll.h" | |
34 | #include "cancel.h" | |
35 | #include "rw.h" | |
f31ecf67 | 36 | #include "waitid.h" |
194bb58c | 37 | #include "futex.h" |
b4bb1900 | 38 | #include "truncate.h" |
d9b57aa3 JA |
39 | |
40 | static int io_no_issue(struct io_kiocb *req, unsigned int issue_flags) | |
41 | { | |
42 | WARN_ON_ONCE(1); | |
43 | return -ECANCELED; | |
44 | } | |
45 | ||
46 | static __maybe_unused int io_eopnotsupp_prep(struct io_kiocb *kiocb, | |
47 | const struct io_uring_sqe *sqe) | |
48 | { | |
49 | return -EOPNOTSUPP; | |
50 | } | |
51 | ||
a7dd2782 | 52 | const struct io_issue_def io_issue_defs[] = { |
d9b57aa3 JA |
53 | [IORING_OP_NOP] = { |
54 | .audit_skip = 1, | |
55 | .iopoll = 1, | |
d9b57aa3 JA |
56 | .prep = io_nop_prep, |
57 | .issue = io_nop, | |
58 | }, | |
59 | [IORING_OP_READV] = { | |
60 | .needs_file = 1, | |
61 | .unbound_nonreg_file = 1, | |
62 | .pollin = 1, | |
63 | .buffer_select = 1, | |
64 | .plug = 1, | |
65 | .audit_skip = 1, | |
66 | .ioprio = 1, | |
67 | .iopoll = 1, | |
ef0ec1ad | 68 | .iopoll_queue = 1, |
d2d778fb | 69 | .vectored = 1, |
0e984ec8 | 70 | .prep = io_prep_rwv, |
d9b57aa3 | 71 | .issue = io_read, |
d9b57aa3 JA |
72 | }, |
73 | [IORING_OP_WRITEV] = { | |
74 | .needs_file = 1, | |
75 | .hash_reg_file = 1, | |
76 | .unbound_nonreg_file = 1, | |
77 | .pollout = 1, | |
78 | .plug = 1, | |
79 | .audit_skip = 1, | |
80 | .ioprio = 1, | |
81 | .iopoll = 1, | |
ef0ec1ad | 82 | .iopoll_queue = 1, |
d2d778fb | 83 | .vectored = 1, |
0e984ec8 | 84 | .prep = io_prep_rwv, |
d9b57aa3 | 85 | .issue = io_write, |
d9b57aa3 JA |
86 | }, |
87 | [IORING_OP_FSYNC] = { | |
88 | .needs_file = 1, | |
89 | .audit_skip = 1, | |
d9b57aa3 JA |
90 | .prep = io_fsync_prep, |
91 | .issue = io_fsync, | |
92 | }, | |
93 | [IORING_OP_READ_FIXED] = { | |
94 | .needs_file = 1, | |
95 | .unbound_nonreg_file = 1, | |
96 | .pollin = 1, | |
97 | .plug = 1, | |
98 | .audit_skip = 1, | |
99 | .ioprio = 1, | |
100 | .iopoll = 1, | |
ef0ec1ad | 101 | .iopoll_queue = 1, |
f688944c | 102 | .prep = io_prep_rw_fixed, |
d9b57aa3 JA |
103 | .issue = io_read, |
104 | }, | |
105 | [IORING_OP_WRITE_FIXED] = { | |
106 | .needs_file = 1, | |
107 | .hash_reg_file = 1, | |
108 | .unbound_nonreg_file = 1, | |
109 | .pollout = 1, | |
110 | .plug = 1, | |
111 | .audit_skip = 1, | |
112 | .ioprio = 1, | |
113 | .iopoll = 1, | |
ef0ec1ad | 114 | .iopoll_queue = 1, |
f688944c | 115 | .prep = io_prep_rw_fixed, |
d9b57aa3 JA |
116 | .issue = io_write, |
117 | }, | |
118 | [IORING_OP_POLL_ADD] = { | |
119 | .needs_file = 1, | |
120 | .unbound_nonreg_file = 1, | |
121 | .audit_skip = 1, | |
d9b57aa3 JA |
122 | .prep = io_poll_add_prep, |
123 | .issue = io_poll_add, | |
124 | }, | |
125 | [IORING_OP_POLL_REMOVE] = { | |
126 | .audit_skip = 1, | |
d9b57aa3 JA |
127 | .prep = io_poll_remove_prep, |
128 | .issue = io_poll_remove, | |
129 | }, | |
130 | [IORING_OP_SYNC_FILE_RANGE] = { | |
131 | .needs_file = 1, | |
132 | .audit_skip = 1, | |
d9b57aa3 JA |
133 | .prep = io_sfr_prep, |
134 | .issue = io_sync_file_range, | |
135 | }, | |
136 | [IORING_OP_SENDMSG] = { | |
137 | .needs_file = 1, | |
138 | .unbound_nonreg_file = 1, | |
139 | .pollout = 1, | |
140 | .ioprio = 1, | |
858c293e | 141 | .manual_alloc = 1, |
d9b57aa3 | 142 | #if defined(CONFIG_NET) |
d9b57aa3 JA |
143 | .prep = io_sendmsg_prep, |
144 | .issue = io_sendmsg, | |
d9b57aa3 JA |
145 | #else |
146 | .prep = io_eopnotsupp_prep, | |
147 | #endif | |
148 | }, | |
149 | [IORING_OP_RECVMSG] = { | |
150 | .needs_file = 1, | |
151 | .unbound_nonreg_file = 1, | |
152 | .pollin = 1, | |
153 | .buffer_select = 1, | |
154 | .ioprio = 1, | |
858c293e | 155 | .manual_alloc = 1, |
d9b57aa3 | 156 | #if defined(CONFIG_NET) |
d9b57aa3 JA |
157 | .prep = io_recvmsg_prep, |
158 | .issue = io_recvmsg, | |
d9b57aa3 JA |
159 | #else |
160 | .prep = io_eopnotsupp_prep, | |
161 | #endif | |
162 | }, | |
163 | [IORING_OP_TIMEOUT] = { | |
164 | .audit_skip = 1, | |
d9b57aa3 JA |
165 | .prep = io_timeout_prep, |
166 | .issue = io_timeout, | |
167 | }, | |
168 | [IORING_OP_TIMEOUT_REMOVE] = { | |
169 | /* used by timeout updates' prep() */ | |
170 | .audit_skip = 1, | |
d9b57aa3 JA |
171 | .prep = io_timeout_remove_prep, |
172 | .issue = io_timeout_remove, | |
173 | }, | |
174 | [IORING_OP_ACCEPT] = { | |
175 | .needs_file = 1, | |
176 | .unbound_nonreg_file = 1, | |
177 | .pollin = 1, | |
178 | .poll_exclusive = 1, | |
179 | .ioprio = 1, /* used for flags */ | |
d9b57aa3 JA |
180 | #if defined(CONFIG_NET) |
181 | .prep = io_accept_prep, | |
182 | .issue = io_accept, | |
183 | #else | |
184 | .prep = io_eopnotsupp_prep, | |
185 | #endif | |
186 | }, | |
187 | [IORING_OP_ASYNC_CANCEL] = { | |
188 | .audit_skip = 1, | |
d9b57aa3 JA |
189 | .prep = io_async_cancel_prep, |
190 | .issue = io_async_cancel, | |
191 | }, | |
192 | [IORING_OP_LINK_TIMEOUT] = { | |
193 | .audit_skip = 1, | |
d9b57aa3 JA |
194 | .prep = io_link_timeout_prep, |
195 | .issue = io_no_issue, | |
196 | }, | |
197 | [IORING_OP_CONNECT] = { | |
198 | .needs_file = 1, | |
199 | .unbound_nonreg_file = 1, | |
200 | .pollout = 1, | |
d9b57aa3 | 201 | #if defined(CONFIG_NET) |
d9b57aa3 JA |
202 | .prep = io_connect_prep, |
203 | .issue = io_connect, | |
d9b57aa3 JA |
204 | #else |
205 | .prep = io_eopnotsupp_prep, | |
206 | #endif | |
207 | }, | |
208 | [IORING_OP_FALLOCATE] = { | |
209 | .needs_file = 1, | |
d9b57aa3 JA |
210 | .prep = io_fallocate_prep, |
211 | .issue = io_fallocate, | |
212 | }, | |
213 | [IORING_OP_OPENAT] = { | |
d9b57aa3 JA |
214 | .prep = io_openat_prep, |
215 | .issue = io_openat, | |
d9b57aa3 JA |
216 | }, |
217 | [IORING_OP_CLOSE] = { | |
d9b57aa3 JA |
218 | .prep = io_close_prep, |
219 | .issue = io_close, | |
220 | }, | |
d9808ceb | 221 | [IORING_OP_FILES_UPDATE] = { |
d9b57aa3 JA |
222 | .audit_skip = 1, |
223 | .iopoll = 1, | |
d9808ceb PB |
224 | .prep = io_files_update_prep, |
225 | .issue = io_files_update, | |
d9b57aa3 JA |
226 | }, |
227 | [IORING_OP_STATX] = { | |
228 | .audit_skip = 1, | |
d9b57aa3 JA |
229 | .prep = io_statx_prep, |
230 | .issue = io_statx, | |
d9b57aa3 JA |
231 | }, |
232 | [IORING_OP_READ] = { | |
233 | .needs_file = 1, | |
234 | .unbound_nonreg_file = 1, | |
235 | .pollin = 1, | |
236 | .buffer_select = 1, | |
237 | .plug = 1, | |
238 | .audit_skip = 1, | |
239 | .ioprio = 1, | |
240 | .iopoll = 1, | |
ef0ec1ad | 241 | .iopoll_queue = 1, |
d9b57aa3 JA |
242 | .prep = io_prep_rw, |
243 | .issue = io_read, | |
244 | }, | |
245 | [IORING_OP_WRITE] = { | |
246 | .needs_file = 1, | |
247 | .hash_reg_file = 1, | |
248 | .unbound_nonreg_file = 1, | |
249 | .pollout = 1, | |
250 | .plug = 1, | |
251 | .audit_skip = 1, | |
252 | .ioprio = 1, | |
253 | .iopoll = 1, | |
ef0ec1ad | 254 | .iopoll_queue = 1, |
d9b57aa3 JA |
255 | .prep = io_prep_rw, |
256 | .issue = io_write, | |
257 | }, | |
258 | [IORING_OP_FADVISE] = { | |
259 | .needs_file = 1, | |
260 | .audit_skip = 1, | |
d9b57aa3 JA |
261 | .prep = io_fadvise_prep, |
262 | .issue = io_fadvise, | |
263 | }, | |
264 | [IORING_OP_MADVISE] = { | |
fbe870a7 | 265 | .audit_skip = 1, |
d9b57aa3 JA |
266 | .prep = io_madvise_prep, |
267 | .issue = io_madvise, | |
268 | }, | |
269 | [IORING_OP_SEND] = { | |
270 | .needs_file = 1, | |
271 | .unbound_nonreg_file = 1, | |
272 | .pollout = 1, | |
273 | .audit_skip = 1, | |
274 | .ioprio = 1, | |
516e82f0 | 275 | .manual_alloc = 1, |
d9b57aa3 JA |
276 | #if defined(CONFIG_NET) |
277 | .prep = io_sendmsg_prep, | |
278 | .issue = io_send, | |
279 | #else | |
280 | .prep = io_eopnotsupp_prep, | |
281 | #endif | |
282 | }, | |
283 | [IORING_OP_RECV] = { | |
284 | .needs_file = 1, | |
285 | .unbound_nonreg_file = 1, | |
286 | .pollin = 1, | |
287 | .buffer_select = 1, | |
288 | .audit_skip = 1, | |
289 | .ioprio = 1, | |
d9b57aa3 JA |
290 | #if defined(CONFIG_NET) |
291 | .prep = io_recvmsg_prep, | |
292 | .issue = io_recv, | |
293 | #else | |
294 | .prep = io_eopnotsupp_prep, | |
295 | #endif | |
296 | }, | |
297 | [IORING_OP_OPENAT2] = { | |
d9b57aa3 JA |
298 | .prep = io_openat2_prep, |
299 | .issue = io_openat2, | |
d9b57aa3 JA |
300 | }, |
301 | [IORING_OP_EPOLL_CTL] = { | |
302 | .unbound_nonreg_file = 1, | |
303 | .audit_skip = 1, | |
d9b57aa3 JA |
304 | #if defined(CONFIG_EPOLL) |
305 | .prep = io_epoll_ctl_prep, | |
306 | .issue = io_epoll_ctl, | |
307 | #else | |
308 | .prep = io_eopnotsupp_prep, | |
309 | #endif | |
310 | }, | |
311 | [IORING_OP_SPLICE] = { | |
312 | .needs_file = 1, | |
313 | .hash_reg_file = 1, | |
314 | .unbound_nonreg_file = 1, | |
315 | .audit_skip = 1, | |
d9b57aa3 JA |
316 | .prep = io_splice_prep, |
317 | .issue = io_splice, | |
318 | }, | |
319 | [IORING_OP_PROVIDE_BUFFERS] = { | |
320 | .audit_skip = 1, | |
321 | .iopoll = 1, | |
d9b57aa3 JA |
322 | .prep = io_provide_buffers_prep, |
323 | .issue = io_provide_buffers, | |
324 | }, | |
325 | [IORING_OP_REMOVE_BUFFERS] = { | |
326 | .audit_skip = 1, | |
327 | .iopoll = 1, | |
d9b57aa3 JA |
328 | .prep = io_remove_buffers_prep, |
329 | .issue = io_remove_buffers, | |
330 | }, | |
331 | [IORING_OP_TEE] = { | |
332 | .needs_file = 1, | |
333 | .hash_reg_file = 1, | |
334 | .unbound_nonreg_file = 1, | |
335 | .audit_skip = 1, | |
d9b57aa3 JA |
336 | .prep = io_tee_prep, |
337 | .issue = io_tee, | |
338 | }, | |
339 | [IORING_OP_SHUTDOWN] = { | |
340 | .needs_file = 1, | |
d9b57aa3 JA |
341 | #if defined(CONFIG_NET) |
342 | .prep = io_shutdown_prep, | |
343 | .issue = io_shutdown, | |
344 | #else | |
345 | .prep = io_eopnotsupp_prep, | |
346 | #endif | |
347 | }, | |
348 | [IORING_OP_RENAMEAT] = { | |
d9b57aa3 JA |
349 | .prep = io_renameat_prep, |
350 | .issue = io_renameat, | |
d9b57aa3 JA |
351 | }, |
352 | [IORING_OP_UNLINKAT] = { | |
d9b57aa3 JA |
353 | .prep = io_unlinkat_prep, |
354 | .issue = io_unlinkat, | |
d9b57aa3 JA |
355 | }, |
356 | [IORING_OP_MKDIRAT] = { | |
d9b57aa3 JA |
357 | .prep = io_mkdirat_prep, |
358 | .issue = io_mkdirat, | |
d9b57aa3 JA |
359 | }, |
360 | [IORING_OP_SYMLINKAT] = { | |
d9b57aa3 JA |
361 | .prep = io_symlinkat_prep, |
362 | .issue = io_symlinkat, | |
d9b57aa3 JA |
363 | }, |
364 | [IORING_OP_LINKAT] = { | |
d9b57aa3 JA |
365 | .prep = io_linkat_prep, |
366 | .issue = io_linkat, | |
d9b57aa3 JA |
367 | }, |
368 | [IORING_OP_MSG_RING] = { | |
369 | .needs_file = 1, | |
370 | .iopoll = 1, | |
d9b57aa3 JA |
371 | .prep = io_msg_ring_prep, |
372 | .issue = io_msg_ring, | |
373 | }, | |
374 | [IORING_OP_FSETXATTR] = { | |
375 | .needs_file = 1, | |
d9b57aa3 JA |
376 | .prep = io_fsetxattr_prep, |
377 | .issue = io_fsetxattr, | |
d9b57aa3 JA |
378 | }, |
379 | [IORING_OP_SETXATTR] = { | |
d9b57aa3 JA |
380 | .prep = io_setxattr_prep, |
381 | .issue = io_setxattr, | |
d9b57aa3 JA |
382 | }, |
383 | [IORING_OP_FGETXATTR] = { | |
384 | .needs_file = 1, | |
d9b57aa3 JA |
385 | .prep = io_fgetxattr_prep, |
386 | .issue = io_fgetxattr, | |
d9b57aa3 JA |
387 | }, |
388 | [IORING_OP_GETXATTR] = { | |
d9b57aa3 JA |
389 | .prep = io_getxattr_prep, |
390 | .issue = io_getxattr, | |
d9b57aa3 JA |
391 | }, |
392 | [IORING_OP_SOCKET] = { | |
393 | .audit_skip = 1, | |
d9b57aa3 JA |
394 | #if defined(CONFIG_NET) |
395 | .prep = io_socket_prep, | |
396 | .issue = io_socket, | |
397 | #else | |
398 | .prep = io_eopnotsupp_prep, | |
399 | #endif | |
400 | }, | |
401 | [IORING_OP_URING_CMD] = { | |
402 | .needs_file = 1, | |
403 | .plug = 1, | |
5756a3a7 | 404 | .iopoll = 1, |
ef0ec1ad | 405 | .iopoll_queue = 1, |
d9b57aa3 JA |
406 | .prep = io_uring_cmd_prep, |
407 | .issue = io_uring_cmd, | |
d9b57aa3 | 408 | }, |
b48c312b | 409 | [IORING_OP_SEND_ZC] = { |
06a5464b PB |
410 | .needs_file = 1, |
411 | .unbound_nonreg_file = 1, | |
412 | .pollout = 1, | |
413 | .audit_skip = 1, | |
414 | .ioprio = 1, | |
581711c4 | 415 | .manual_alloc = 1, |
06a5464b | 416 | #if defined(CONFIG_NET) |
b0e9b551 PB |
417 | .prep = io_send_zc_prep, |
418 | .issue = io_send_zc, | |
06a5464b PB |
419 | #else |
420 | .prep = io_eopnotsupp_prep, | |
493108d9 PB |
421 | #endif |
422 | }, | |
423 | [IORING_OP_SENDMSG_ZC] = { | |
493108d9 PB |
424 | .needs_file = 1, |
425 | .unbound_nonreg_file = 1, | |
426 | .pollout = 1, | |
493108d9 PB |
427 | .ioprio = 1, |
428 | .manual_alloc = 1, | |
429 | #if defined(CONFIG_NET) | |
493108d9 PB |
430 | .prep = io_send_zc_prep, |
431 | .issue = io_sendmsg_zc, | |
f30bd4d0 BL |
432 | #else |
433 | .prep = io_eopnotsupp_prep, | |
434 | #endif | |
435 | }, | |
fc68fcda JA |
436 | [IORING_OP_READ_MULTISHOT] = { |
437 | .needs_file = 1, | |
438 | .unbound_nonreg_file = 1, | |
439 | .pollin = 1, | |
440 | .buffer_select = 1, | |
441 | .audit_skip = 1, | |
442 | .prep = io_read_mshot_prep, | |
443 | .issue = io_read_mshot, | |
444 | }, | |
f31ecf67 JA |
445 | [IORING_OP_WAITID] = { |
446 | .prep = io_waitid_prep, | |
447 | .issue = io_waitid, | |
448 | }, | |
194bb58c JA |
449 | [IORING_OP_FUTEX_WAIT] = { |
450 | #if defined(CONFIG_FUTEX) | |
451 | .prep = io_futex_prep, | |
452 | .issue = io_futex_wait, | |
453 | #else | |
454 | .prep = io_eopnotsupp_prep, | |
455 | #endif | |
456 | }, | |
457 | [IORING_OP_FUTEX_WAKE] = { | |
458 | #if defined(CONFIG_FUTEX) | |
459 | .prep = io_futex_prep, | |
460 | .issue = io_futex_wake, | |
461 | #else | |
462 | .prep = io_eopnotsupp_prep, | |
8f350194 JA |
463 | #endif |
464 | }, | |
465 | [IORING_OP_FUTEX_WAITV] = { | |
466 | #if defined(CONFIG_FUTEX) | |
467 | .prep = io_futexv_prep, | |
468 | .issue = io_futexv_wait, | |
469 | #else | |
470 | .prep = io_eopnotsupp_prep, | |
194bb58c JA |
471 | #endif |
472 | }, | |
dc18b89a JA |
473 | [IORING_OP_FIXED_FD_INSTALL] = { |
474 | .needs_file = 1, | |
dc18b89a JA |
475 | .prep = io_install_fixed_fd_prep, |
476 | .issue = io_install_fixed_fd, | |
477 | }, | |
b4bb1900 TS |
478 | [IORING_OP_FTRUNCATE] = { |
479 | .needs_file = 1, | |
480 | .hash_reg_file = 1, | |
481 | .prep = io_ftruncate_prep, | |
482 | .issue = io_ftruncate, | |
483 | }, | |
f30bd4d0 BL |
484 | }; |
485 | ||
f30bd4d0 BL |
486 | const struct io_cold_def io_cold_defs[] = { |
487 | [IORING_OP_NOP] = { | |
488 | .name = "NOP", | |
489 | }, | |
490 | [IORING_OP_READV] = { | |
491 | .async_size = sizeof(struct io_async_rw), | |
492 | .name = "READV", | |
493 | .prep_async = io_readv_prep_async, | |
494 | .cleanup = io_readv_writev_cleanup, | |
495 | .fail = io_rw_fail, | |
496 | }, | |
497 | [IORING_OP_WRITEV] = { | |
498 | .async_size = sizeof(struct io_async_rw), | |
499 | .name = "WRITEV", | |
500 | .prep_async = io_writev_prep_async, | |
501 | .cleanup = io_readv_writev_cleanup, | |
502 | .fail = io_rw_fail, | |
503 | }, | |
504 | [IORING_OP_FSYNC] = { | |
505 | .name = "FSYNC", | |
506 | }, | |
507 | [IORING_OP_READ_FIXED] = { | |
508 | .async_size = sizeof(struct io_async_rw), | |
509 | .name = "READ_FIXED", | |
510 | .fail = io_rw_fail, | |
511 | }, | |
512 | [IORING_OP_WRITE_FIXED] = { | |
513 | .async_size = sizeof(struct io_async_rw), | |
514 | .name = "WRITE_FIXED", | |
515 | .fail = io_rw_fail, | |
516 | }, | |
517 | [IORING_OP_POLL_ADD] = { | |
518 | .name = "POLL_ADD", | |
519 | }, | |
520 | [IORING_OP_POLL_REMOVE] = { | |
521 | .name = "POLL_REMOVE", | |
522 | }, | |
523 | [IORING_OP_SYNC_FILE_RANGE] = { | |
524 | .name = "SYNC_FILE_RANGE", | |
525 | }, | |
526 | [IORING_OP_SENDMSG] = { | |
527 | .name = "SENDMSG", | |
528 | #if defined(CONFIG_NET) | |
529 | .async_size = sizeof(struct io_async_msghdr), | |
530 | .prep_async = io_sendmsg_prep_async, | |
531 | .cleanup = io_sendmsg_recvmsg_cleanup, | |
532 | .fail = io_sendrecv_fail, | |
533 | #endif | |
534 | }, | |
535 | [IORING_OP_RECVMSG] = { | |
536 | .name = "RECVMSG", | |
537 | #if defined(CONFIG_NET) | |
538 | .async_size = sizeof(struct io_async_msghdr), | |
539 | .prep_async = io_recvmsg_prep_async, | |
540 | .cleanup = io_sendmsg_recvmsg_cleanup, | |
541 | .fail = io_sendrecv_fail, | |
542 | #endif | |
543 | }, | |
544 | [IORING_OP_TIMEOUT] = { | |
545 | .async_size = sizeof(struct io_timeout_data), | |
546 | .name = "TIMEOUT", | |
547 | }, | |
548 | [IORING_OP_TIMEOUT_REMOVE] = { | |
549 | .name = "TIMEOUT_REMOVE", | |
550 | }, | |
551 | [IORING_OP_ACCEPT] = { | |
552 | .name = "ACCEPT", | |
553 | }, | |
554 | [IORING_OP_ASYNC_CANCEL] = { | |
555 | .name = "ASYNC_CANCEL", | |
556 | }, | |
557 | [IORING_OP_LINK_TIMEOUT] = { | |
558 | .async_size = sizeof(struct io_timeout_data), | |
559 | .name = "LINK_TIMEOUT", | |
560 | }, | |
561 | [IORING_OP_CONNECT] = { | |
562 | .name = "CONNECT", | |
563 | #if defined(CONFIG_NET) | |
564 | .async_size = sizeof(struct io_async_connect), | |
565 | .prep_async = io_connect_prep_async, | |
566 | #endif | |
567 | }, | |
568 | [IORING_OP_FALLOCATE] = { | |
569 | .name = "FALLOCATE", | |
570 | }, | |
571 | [IORING_OP_OPENAT] = { | |
572 | .name = "OPENAT", | |
573 | .cleanup = io_open_cleanup, | |
574 | }, | |
575 | [IORING_OP_CLOSE] = { | |
576 | .name = "CLOSE", | |
577 | }, | |
578 | [IORING_OP_FILES_UPDATE] = { | |
579 | .name = "FILES_UPDATE", | |
580 | }, | |
581 | [IORING_OP_STATX] = { | |
582 | .name = "STATX", | |
583 | .cleanup = io_statx_cleanup, | |
584 | }, | |
585 | [IORING_OP_READ] = { | |
586 | .async_size = sizeof(struct io_async_rw), | |
587 | .name = "READ", | |
588 | .fail = io_rw_fail, | |
589 | }, | |
590 | [IORING_OP_WRITE] = { | |
591 | .async_size = sizeof(struct io_async_rw), | |
592 | .name = "WRITE", | |
593 | .fail = io_rw_fail, | |
594 | }, | |
595 | [IORING_OP_FADVISE] = { | |
596 | .name = "FADVISE", | |
597 | }, | |
598 | [IORING_OP_MADVISE] = { | |
599 | .name = "MADVISE", | |
600 | }, | |
601 | [IORING_OP_SEND] = { | |
602 | .name = "SEND", | |
603 | #if defined(CONFIG_NET) | |
604 | .async_size = sizeof(struct io_async_msghdr), | |
605 | .fail = io_sendrecv_fail, | |
606 | .prep_async = io_send_prep_async, | |
607 | #endif | |
608 | }, | |
609 | [IORING_OP_RECV] = { | |
610 | .name = "RECV", | |
611 | #if defined(CONFIG_NET) | |
612 | .fail = io_sendrecv_fail, | |
613 | #endif | |
614 | }, | |
615 | [IORING_OP_OPENAT2] = { | |
616 | .name = "OPENAT2", | |
617 | .cleanup = io_open_cleanup, | |
618 | }, | |
619 | [IORING_OP_EPOLL_CTL] = { | |
620 | .name = "EPOLL", | |
621 | }, | |
622 | [IORING_OP_SPLICE] = { | |
623 | .name = "SPLICE", | |
624 | }, | |
625 | [IORING_OP_PROVIDE_BUFFERS] = { | |
626 | .name = "PROVIDE_BUFFERS", | |
627 | }, | |
628 | [IORING_OP_REMOVE_BUFFERS] = { | |
629 | .name = "REMOVE_BUFFERS", | |
630 | }, | |
631 | [IORING_OP_TEE] = { | |
632 | .name = "TEE", | |
633 | }, | |
634 | [IORING_OP_SHUTDOWN] = { | |
635 | .name = "SHUTDOWN", | |
636 | }, | |
637 | [IORING_OP_RENAMEAT] = { | |
638 | .name = "RENAMEAT", | |
639 | .cleanup = io_renameat_cleanup, | |
640 | }, | |
641 | [IORING_OP_UNLINKAT] = { | |
642 | .name = "UNLINKAT", | |
643 | .cleanup = io_unlinkat_cleanup, | |
644 | }, | |
645 | [IORING_OP_MKDIRAT] = { | |
646 | .name = "MKDIRAT", | |
647 | .cleanup = io_mkdirat_cleanup, | |
648 | }, | |
649 | [IORING_OP_SYMLINKAT] = { | |
650 | .name = "SYMLINKAT", | |
651 | .cleanup = io_link_cleanup, | |
652 | }, | |
653 | [IORING_OP_LINKAT] = { | |
654 | .name = "LINKAT", | |
655 | .cleanup = io_link_cleanup, | |
656 | }, | |
657 | [IORING_OP_MSG_RING] = { | |
658 | .name = "MSG_RING", | |
659 | .cleanup = io_msg_ring_cleanup, | |
660 | }, | |
661 | [IORING_OP_FSETXATTR] = { | |
662 | .name = "FSETXATTR", | |
663 | .cleanup = io_xattr_cleanup, | |
664 | }, | |
665 | [IORING_OP_SETXATTR] = { | |
666 | .name = "SETXATTR", | |
667 | .cleanup = io_xattr_cleanup, | |
668 | }, | |
669 | [IORING_OP_FGETXATTR] = { | |
670 | .name = "FGETXATTR", | |
671 | .cleanup = io_xattr_cleanup, | |
672 | }, | |
673 | [IORING_OP_GETXATTR] = { | |
674 | .name = "GETXATTR", | |
675 | .cleanup = io_xattr_cleanup, | |
676 | }, | |
677 | [IORING_OP_SOCKET] = { | |
678 | .name = "SOCKET", | |
679 | }, | |
680 | [IORING_OP_URING_CMD] = { | |
681 | .name = "URING_CMD", | |
fd9b8547 | 682 | .async_size = 2 * sizeof(struct io_uring_sqe), |
f30bd4d0 BL |
683 | .prep_async = io_uring_cmd_prep_async, |
684 | }, | |
685 | [IORING_OP_SEND_ZC] = { | |
686 | .name = "SEND_ZC", | |
687 | #if defined(CONFIG_NET) | |
688 | .async_size = sizeof(struct io_async_msghdr), | |
689 | .prep_async = io_send_prep_async, | |
690 | .cleanup = io_send_zc_cleanup, | |
691 | .fail = io_sendrecv_fail, | |
692 | #endif | |
693 | }, | |
694 | [IORING_OP_SENDMSG_ZC] = { | |
695 | .name = "SENDMSG_ZC", | |
696 | #if defined(CONFIG_NET) | |
697 | .async_size = sizeof(struct io_async_msghdr), | |
493108d9 PB |
698 | .prep_async = io_sendmsg_prep_async, |
699 | .cleanup = io_send_zc_cleanup, | |
700 | .fail = io_sendrecv_fail, | |
06a5464b | 701 | #endif |
06a5464b | 702 | }, |
fc68fcda JA |
703 | [IORING_OP_READ_MULTISHOT] = { |
704 | .name = "READ_MULTISHOT", | |
705 | }, | |
f31ecf67 JA |
706 | [IORING_OP_WAITID] = { |
707 | .name = "WAITID", | |
708 | .async_size = sizeof(struct io_waitid_async), | |
709 | }, | |
194bb58c JA |
710 | [IORING_OP_FUTEX_WAIT] = { |
711 | .name = "FUTEX_WAIT", | |
712 | }, | |
713 | [IORING_OP_FUTEX_WAKE] = { | |
714 | .name = "FUTEX_WAKE", | |
715 | }, | |
8f350194 JA |
716 | [IORING_OP_FUTEX_WAITV] = { |
717 | .name = "FUTEX_WAITV", | |
718 | }, | |
dc18b89a JA |
719 | [IORING_OP_FIXED_FD_INSTALL] = { |
720 | .name = "FIXED_FD_INSTALL", | |
721 | }, | |
b4bb1900 TS |
722 | [IORING_OP_FTRUNCATE] = { |
723 | .name = "FTRUNCATE", | |
724 | }, | |
d9b57aa3 JA |
725 | }; |
726 | ||
727 | const char *io_uring_get_opcode(u8 opcode) | |
728 | { | |
729 | if (opcode < IORING_OP_LAST) | |
f30bd4d0 | 730 | return io_cold_defs[opcode].name; |
d9b57aa3 JA |
731 | return "INVALID"; |
732 | } | |
733 | ||
734 | void __init io_uring_optable_init(void) | |
735 | { | |
736 | int i; | |
737 | ||
f30bd4d0 | 738 | BUILD_BUG_ON(ARRAY_SIZE(io_cold_defs) != IORING_OP_LAST); |
a7dd2782 | 739 | BUILD_BUG_ON(ARRAY_SIZE(io_issue_defs) != IORING_OP_LAST); |
d9b57aa3 | 740 | |
a7dd2782 BL |
741 | for (i = 0; i < ARRAY_SIZE(io_issue_defs); i++) { |
742 | BUG_ON(!io_issue_defs[i].prep); | |
743 | if (io_issue_defs[i].prep != io_eopnotsupp_prep) | |
744 | BUG_ON(!io_issue_defs[i].issue); | |
f30bd4d0 | 745 | WARN_ON_ONCE(!io_cold_defs[i].name); |
d9b57aa3 JA |
746 | } |
747 | } |