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