| 1 | |
| 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 | #include <linux/io_uring/cmd.h>
|
| 11 |
|
| 12 | #include "io_uring.h"
|
| 13 | #include "opdef.h"
|
| 14 | #include "refs.h"
|
| 15 | #include "tctx.h"
|
| 16 | #include "sqpoll.h"
|
| 17 | #include "fdinfo.h"
|
| 18 | #include "kbuf.h"
|
| 19 | #include "rsrc.h"
|
| 20 |
|
| 21 | #include "xattr.h"
|
| 22 | #include "nop.h"
|
| 23 | #include "fs.h"
|
| 24 | #include "splice.h"
|
| 25 | #include "sync.h"
|
| 26 | #include "advise.h"
|
| 27 | #include "openclose.h"
|
| 28 | #include "uring_cmd.h"
|
| 29 | #include "epoll.h"
|
| 30 | #include "statx.h"
|
| 31 | #include "net.h"
|
| 32 | #include "msg_ring.h"
|
| 33 | #include "timeout.h"
|
| 34 | #include "poll.h"
|
| 35 | #include "cancel.h"
|
| 36 | #include "rw.h"
|
| 37 | #include "waitid.h"
|
| 38 | #include "futex.h"
|
| 39 | #include "truncate.h"
|
| 40 | #include "zcrx.h"
|
| 41 |
|
| 42 | static int io_no_issue(struct io_kiocb *req, unsigned int issue_flags)
|
| 43 | {
|
| 44 | WARN_ON_ONCE(1);
|
| 45 | return -ECANCELED;
|
| 46 | }
|
| 47 |
|
| 48 | static __maybe_unused int io_eopnotsupp_prep(struct io_kiocb *kiocb,
|
| 49 | const struct io_uring_sqe *sqe)
|
| 50 | {
|
| 51 | return -EOPNOTSUPP;
|
| 52 | }
|
| 53 |
|
| 54 | const struct io_issue_def io_issue_defs[] = {
|
| 55 | [IORING_OP_NOP] = {
|
| 56 | .audit_skip = 1,
|
| 57 | .iopoll = 1,
|
| 58 | .prep = io_nop_prep,
|
| 59 | .issue = io_nop,
|
| 60 | },
|
| 61 | [IORING_OP_READV] = {
|
| 62 | .needs_file = 1,
|
| 63 | .unbound_nonreg_file = 1,
|
| 64 | .pollin = 1,
|
| 65 | .buffer_select = 1,
|
| 66 | .plug = 1,
|
| 67 | .audit_skip = 1,
|
| 68 | .ioprio = 1,
|
| 69 | .iopoll = 1,
|
| 70 | .vectored = 1,
|
| 71 | .async_size = sizeof(struct io_async_rw),
|
| 72 | .prep = io_prep_readv,
|
| 73 | .issue = io_read,
|
| 74 | },
|
| 75 | [IORING_OP_WRITEV] = {
|
| 76 | .needs_file = 1,
|
| 77 | .hash_reg_file = 1,
|
| 78 | .unbound_nonreg_file = 1,
|
| 79 | .pollout = 1,
|
| 80 | .plug = 1,
|
| 81 | .audit_skip = 1,
|
| 82 | .ioprio = 1,
|
| 83 | .iopoll = 1,
|
| 84 | .vectored = 1,
|
| 85 | .async_size = sizeof(struct io_async_rw),
|
| 86 | .prep = io_prep_writev,
|
| 87 | .issue = io_write,
|
| 88 | },
|
| 89 | [IORING_OP_FSYNC] = {
|
| 90 | .needs_file = 1,
|
| 91 | .audit_skip = 1,
|
| 92 | .prep = io_fsync_prep,
|
| 93 | .issue = io_fsync,
|
| 94 | },
|
| 95 | [IORING_OP_READ_FIXED] = {
|
| 96 | .needs_file = 1,
|
| 97 | .unbound_nonreg_file = 1,
|
| 98 | .pollin = 1,
|
| 99 | .plug = 1,
|
| 100 | .audit_skip = 1,
|
| 101 | .ioprio = 1,
|
| 102 | .iopoll = 1,
|
| 103 | .async_size = sizeof(struct io_async_rw),
|
| 104 | .prep = io_prep_read_fixed,
|
| 105 | .issue = io_read_fixed,
|
| 106 | },
|
| 107 | [IORING_OP_WRITE_FIXED] = {
|
| 108 | .needs_file = 1,
|
| 109 | .hash_reg_file = 1,
|
| 110 | .unbound_nonreg_file = 1,
|
| 111 | .pollout = 1,
|
| 112 | .plug = 1,
|
| 113 | .audit_skip = 1,
|
| 114 | .ioprio = 1,
|
| 115 | .iopoll = 1,
|
| 116 | .async_size = sizeof(struct io_async_rw),
|
| 117 | .prep = io_prep_write_fixed,
|
| 118 | .issue = io_write_fixed,
|
| 119 | },
|
| 120 | [IORING_OP_POLL_ADD] = {
|
| 121 | .needs_file = 1,
|
| 122 | .unbound_nonreg_file = 1,
|
| 123 | .audit_skip = 1,
|
| 124 | .prep = io_poll_add_prep,
|
| 125 | .issue = io_poll_add,
|
| 126 | },
|
| 127 | [IORING_OP_POLL_REMOVE] = {
|
| 128 | .audit_skip = 1,
|
| 129 | .prep = io_poll_remove_prep,
|
| 130 | .issue = io_poll_remove,
|
| 131 | },
|
| 132 | [IORING_OP_SYNC_FILE_RANGE] = {
|
| 133 | .needs_file = 1,
|
| 134 | .audit_skip = 1,
|
| 135 | .prep = io_sfr_prep,
|
| 136 | .issue = io_sync_file_range,
|
| 137 | },
|
| 138 | [IORING_OP_SENDMSG] = {
|
| 139 | .needs_file = 1,
|
| 140 | .unbound_nonreg_file = 1,
|
| 141 | .pollout = 1,
|
| 142 | .ioprio = 1,
|
| 143 | #if defined(CONFIG_NET)
|
| 144 | .async_size = sizeof(struct io_async_msghdr),
|
| 145 | .prep = io_sendmsg_prep,
|
| 146 | .issue = io_sendmsg,
|
| 147 | #else
|
| 148 | .prep = io_eopnotsupp_prep,
|
| 149 | #endif
|
| 150 | },
|
| 151 | [IORING_OP_RECVMSG] = {
|
| 152 | .needs_file = 1,
|
| 153 | .unbound_nonreg_file = 1,
|
| 154 | .pollin = 1,
|
| 155 | .buffer_select = 1,
|
| 156 | .ioprio = 1,
|
| 157 | #if defined(CONFIG_NET)
|
| 158 | .async_size = sizeof(struct io_async_msghdr),
|
| 159 | .prep = io_recvmsg_prep,
|
| 160 | .issue = io_recvmsg,
|
| 161 | #else
|
| 162 | .prep = io_eopnotsupp_prep,
|
| 163 | #endif
|
| 164 | },
|
| 165 | [IORING_OP_TIMEOUT] = {
|
| 166 | .audit_skip = 1,
|
| 167 | .async_size = sizeof(struct io_timeout_data),
|
| 168 | .prep = io_timeout_prep,
|
| 169 | .issue = io_timeout,
|
| 170 | },
|
| 171 | [IORING_OP_TIMEOUT_REMOVE] = {
|
| 172 |
|
| 173 | .audit_skip = 1,
|
| 174 | .prep = io_timeout_remove_prep,
|
| 175 | .issue = io_timeout_remove,
|
| 176 | },
|
| 177 | [IORING_OP_ACCEPT] = {
|
| 178 | .needs_file = 1,
|
| 179 | .unbound_nonreg_file = 1,
|
| 180 | .pollin = 1,
|
| 181 | .poll_exclusive = 1,
|
| 182 | .ioprio = 1,
|
| 183 | #if defined(CONFIG_NET)
|
| 184 | .prep = io_accept_prep,
|
| 185 | .issue = io_accept,
|
| 186 | #else
|
| 187 | .prep = io_eopnotsupp_prep,
|
| 188 | #endif
|
| 189 | },
|
| 190 | [IORING_OP_ASYNC_CANCEL] = {
|
| 191 | .audit_skip = 1,
|
| 192 | .prep = io_async_cancel_prep,
|
| 193 | .issue = io_async_cancel,
|
| 194 | },
|
| 195 | [IORING_OP_LINK_TIMEOUT] = {
|
| 196 | .audit_skip = 1,
|
| 197 | .async_size = sizeof(struct io_timeout_data),
|
| 198 | .prep = io_link_timeout_prep,
|
| 199 | .issue = io_no_issue,
|
| 200 | },
|
| 201 | [IORING_OP_CONNECT] = {
|
| 202 | .needs_file = 1,
|
| 203 | .unbound_nonreg_file = 1,
|
| 204 | .pollout = 1,
|
| 205 | #if defined(CONFIG_NET)
|
| 206 | .filter_pdu_size = sizeof_field(struct io_uring_bpf_ctx, connect),
|
| 207 | .async_size = sizeof(struct sockaddr_storage),
|
| 208 | .prep = io_connect_prep,
|
| 209 | .issue = io_connect,
|
| 210 | .filter_populate = io_connect_bpf_populate,
|
| 211 | #else
|
| 212 | .prep = io_eopnotsupp_prep,
|
| 213 | #endif
|
| 214 | },
|
| 215 | [IORING_OP_FALLOCATE] = {
|
| 216 | .needs_file = 1,
|
| 217 | .hash_reg_file = 1,
|
| 218 | .prep = io_fallocate_prep,
|
| 219 | .issue = io_fallocate,
|
| 220 | },
|
| 221 | [IORING_OP_OPENAT] = {
|
| 222 | .filter_pdu_size = sizeof_field(struct io_uring_bpf_ctx, open),
|
| 223 | .prep = io_openat_prep,
|
| 224 | .issue = io_openat,
|
| 225 | .filter_populate = io_openat_bpf_populate,
|
| 226 | },
|
| 227 | [IORING_OP_CLOSE] = {
|
| 228 | .prep = io_close_prep,
|
| 229 | .issue = io_close,
|
| 230 | },
|
| 231 | [IORING_OP_FILES_UPDATE] = {
|
| 232 | .audit_skip = 1,
|
| 233 | .iopoll = 1,
|
| 234 | .prep = io_files_update_prep,
|
| 235 | .issue = io_files_update,
|
| 236 | },
|
| 237 | [IORING_OP_STATX] = {
|
| 238 | .audit_skip = 1,
|
| 239 | .prep = io_statx_prep,
|
| 240 | .issue = io_statx,
|
| 241 | },
|
| 242 | [IORING_OP_READ] = {
|
| 243 | .needs_file = 1,
|
| 244 | .unbound_nonreg_file = 1,
|
| 245 | .pollin = 1,
|
| 246 | .buffer_select = 1,
|
| 247 | .plug = 1,
|
| 248 | .audit_skip = 1,
|
| 249 | .ioprio = 1,
|
| 250 | .iopoll = 1,
|
| 251 | .async_size = sizeof(struct io_async_rw),
|
| 252 | .prep = io_prep_read,
|
| 253 | .issue = io_read,
|
| 254 | },
|
| 255 | [IORING_OP_WRITE] = {
|
| 256 | .needs_file = 1,
|
| 257 | .hash_reg_file = 1,
|
| 258 | .unbound_nonreg_file = 1,
|
| 259 | .pollout = 1,
|
| 260 | .plug = 1,
|
| 261 | .audit_skip = 1,
|
| 262 | .ioprio = 1,
|
| 263 | .iopoll = 1,
|
| 264 | .async_size = sizeof(struct io_async_rw),
|
| 265 | .prep = io_prep_write,
|
| 266 | .issue = io_write,
|
| 267 | },
|
| 268 | [IORING_OP_FADVISE] = {
|
| 269 | .needs_file = 1,
|
| 270 | .audit_skip = 1,
|
| 271 | .prep = io_fadvise_prep,
|
| 272 | .issue = io_fadvise,
|
| 273 | },
|
| 274 | [IORING_OP_MADVISE] = {
|
| 275 | .audit_skip = 1,
|
| 276 | .prep = io_madvise_prep,
|
| 277 | .issue = io_madvise,
|
| 278 | },
|
| 279 | [IORING_OP_SEND] = {
|
| 280 | .needs_file = 1,
|
| 281 | .unbound_nonreg_file = 1,
|
| 282 | .pollout = 1,
|
| 283 | .audit_skip = 1,
|
| 284 | .ioprio = 1,
|
| 285 | .buffer_select = 1,
|
| 286 | #if defined(CONFIG_NET)
|
| 287 | .async_size = sizeof(struct io_async_msghdr),
|
| 288 | .prep = io_sendmsg_prep,
|
| 289 | .issue = io_send,
|
| 290 | #else
|
| 291 | .prep = io_eopnotsupp_prep,
|
| 292 | #endif
|
| 293 | },
|
| 294 | [IORING_OP_RECV] = {
|
| 295 | .needs_file = 1,
|
| 296 | .unbound_nonreg_file = 1,
|
| 297 | .pollin = 1,
|
| 298 | .buffer_select = 1,
|
| 299 | .audit_skip = 1,
|
| 300 | .ioprio = 1,
|
| 301 | #if defined(CONFIG_NET)
|
| 302 | .async_size = sizeof(struct io_async_msghdr),
|
| 303 | .prep = io_recvmsg_prep,
|
| 304 | .issue = io_recv,
|
| 305 | #else
|
| 306 | .prep = io_eopnotsupp_prep,
|
| 307 | #endif
|
| 308 | },
|
| 309 | [IORING_OP_OPENAT2] = {
|
| 310 | .filter_pdu_size = sizeof_field(struct io_uring_bpf_ctx, open),
|
| 311 | .prep = io_openat2_prep,
|
| 312 | .issue = io_openat2,
|
| 313 | .filter_populate = io_openat_bpf_populate,
|
| 314 | },
|
| 315 | [IORING_OP_EPOLL_CTL] = {
|
| 316 | .unbound_nonreg_file = 1,
|
| 317 | .audit_skip = 1,
|
| 318 | #if defined(CONFIG_EPOLL)
|
| 319 | .prep = io_epoll_ctl_prep,
|
| 320 | .issue = io_epoll_ctl,
|
| 321 | #else
|
| 322 | .prep = io_eopnotsupp_prep,
|
| 323 | #endif
|
| 324 | },
|
| 325 | [IORING_OP_SPLICE] = {
|
| 326 | .needs_file = 1,
|
| 327 | .hash_reg_file = 1,
|
| 328 | .unbound_nonreg_file = 1,
|
| 329 | .audit_skip = 1,
|
| 330 | .prep = io_splice_prep,
|
| 331 | .issue = io_splice,
|
| 332 | },
|
| 333 | [IORING_OP_PROVIDE_BUFFERS] = {
|
| 334 | .audit_skip = 1,
|
| 335 | .iopoll = 1,
|
| 336 | .prep = io_provide_buffers_prep,
|
| 337 | .issue = io_manage_buffers_legacy,
|
| 338 | },
|
| 339 | [IORING_OP_REMOVE_BUFFERS] = {
|
| 340 | .audit_skip = 1,
|
| 341 | .iopoll = 1,
|
| 342 | .prep = io_remove_buffers_prep,
|
| 343 | .issue = io_manage_buffers_legacy,
|
| 344 | },
|
| 345 | [IORING_OP_TEE] = {
|
| 346 | .needs_file = 1,
|
| 347 | .hash_reg_file = 1,
|
| 348 | .unbound_nonreg_file = 1,
|
| 349 | .audit_skip = 1,
|
| 350 | .prep = io_tee_prep,
|
| 351 | .issue = io_tee,
|
| 352 | },
|
| 353 | [IORING_OP_SHUTDOWN] = {
|
| 354 | .needs_file = 1,
|
| 355 | #if defined(CONFIG_NET)
|
| 356 | .prep = io_shutdown_prep,
|
| 357 | .issue = io_shutdown,
|
| 358 | #else
|
| 359 | .prep = io_eopnotsupp_prep,
|
| 360 | #endif
|
| 361 | },
|
| 362 | [IORING_OP_RENAMEAT] = {
|
| 363 | .prep = io_renameat_prep,
|
| 364 | .issue = io_renameat,
|
| 365 | },
|
| 366 | [IORING_OP_UNLINKAT] = {
|
| 367 | .prep = io_unlinkat_prep,
|
| 368 | .issue = io_unlinkat,
|
| 369 | },
|
| 370 | [IORING_OP_MKDIRAT] = {
|
| 371 | .prep = io_mkdirat_prep,
|
| 372 | .issue = io_mkdirat,
|
| 373 | },
|
| 374 | [IORING_OP_SYMLINKAT] = {
|
| 375 | .prep = io_symlinkat_prep,
|
| 376 | .issue = io_symlinkat,
|
| 377 | },
|
| 378 | [IORING_OP_LINKAT] = {
|
| 379 | .prep = io_linkat_prep,
|
| 380 | .issue = io_linkat,
|
| 381 | },
|
| 382 | [IORING_OP_MSG_RING] = {
|
| 383 | .needs_file = 1,
|
| 384 | .iopoll = 1,
|
| 385 | .prep = io_msg_ring_prep,
|
| 386 | .issue = io_msg_ring,
|
| 387 | },
|
| 388 | [IORING_OP_FSETXATTR] = {
|
| 389 | .needs_file = 1,
|
| 390 | .prep = io_fsetxattr_prep,
|
| 391 | .issue = io_fsetxattr,
|
| 392 | },
|
| 393 | [IORING_OP_SETXATTR] = {
|
| 394 | .prep = io_setxattr_prep,
|
| 395 | .issue = io_setxattr,
|
| 396 | },
|
| 397 | [IORING_OP_FGETXATTR] = {
|
| 398 | .needs_file = 1,
|
| 399 | .prep = io_fgetxattr_prep,
|
| 400 | .issue = io_fgetxattr,
|
| 401 | },
|
| 402 | [IORING_OP_GETXATTR] = {
|
| 403 | .prep = io_getxattr_prep,
|
| 404 | .issue = io_getxattr,
|
| 405 | },
|
| 406 | [IORING_OP_SOCKET] = {
|
| 407 | .audit_skip = 1,
|
| 408 | #if defined(CONFIG_NET)
|
| 409 | .filter_pdu_size = sizeof_field(struct io_uring_bpf_ctx, socket),
|
| 410 | .prep = io_socket_prep,
|
| 411 | .issue = io_socket,
|
| 412 | .filter_populate = io_socket_bpf_populate,
|
| 413 | #else
|
| 414 | .prep = io_eopnotsupp_prep,
|
| 415 | #endif
|
| 416 | },
|
| 417 | [IORING_OP_URING_CMD] = {
|
| 418 | .buffer_select = 1,
|
| 419 | .needs_file = 1,
|
| 420 | .plug = 1,
|
| 421 | .iopoll = 1,
|
| 422 | .async_size = sizeof(struct io_async_cmd),
|
| 423 | .prep = io_uring_cmd_prep,
|
| 424 | .issue = io_uring_cmd,
|
| 425 | },
|
| 426 | [IORING_OP_SEND_ZC] = {
|
| 427 | .needs_file = 1,
|
| 428 | .unbound_nonreg_file = 1,
|
| 429 | .pollout = 1,
|
| 430 | .audit_skip = 1,
|
| 431 | .ioprio = 1,
|
| 432 | #if defined(CONFIG_NET)
|
| 433 | .async_size = sizeof(struct io_async_msghdr),
|
| 434 | .prep = io_send_zc_prep,
|
| 435 | .issue = io_sendmsg_zc,
|
| 436 | #else
|
| 437 | .prep = io_eopnotsupp_prep,
|
| 438 | #endif
|
| 439 | },
|
| 440 | [IORING_OP_SENDMSG_ZC] = {
|
| 441 | .needs_file = 1,
|
| 442 | .unbound_nonreg_file = 1,
|
| 443 | .pollout = 1,
|
| 444 | .ioprio = 1,
|
| 445 | #if defined(CONFIG_NET)
|
| 446 | .async_size = sizeof(struct io_async_msghdr),
|
| 447 | .prep = io_send_zc_prep,
|
| 448 | .issue = io_sendmsg_zc,
|
| 449 | #else
|
| 450 | .prep = io_eopnotsupp_prep,
|
| 451 | #endif
|
| 452 | },
|
| 453 | [IORING_OP_READ_MULTISHOT] = {
|
| 454 | .needs_file = 1,
|
| 455 | .unbound_nonreg_file = 1,
|
| 456 | .pollin = 1,
|
| 457 | .buffer_select = 1,
|
| 458 | .audit_skip = 1,
|
| 459 | .async_size = sizeof(struct io_async_rw),
|
| 460 | .prep = io_read_mshot_prep,
|
| 461 | .issue = io_read_mshot,
|
| 462 | },
|
| 463 | [IORING_OP_WAITID] = {
|
| 464 | .async_size = sizeof(struct io_waitid_async),
|
| 465 | .prep = io_waitid_prep,
|
| 466 | .issue = io_waitid,
|
| 467 | },
|
| 468 | [IORING_OP_FUTEX_WAIT] = {
|
| 469 | #if defined(CONFIG_FUTEX)
|
| 470 | .prep = io_futex_wait_prep,
|
| 471 | .issue = io_futex_wait,
|
| 472 | #else
|
| 473 | .prep = io_eopnotsupp_prep,
|
| 474 | #endif
|
| 475 | },
|
| 476 | [IORING_OP_FUTEX_WAKE] = {
|
| 477 | #if defined(CONFIG_FUTEX)
|
| 478 | .prep = io_futex_prep,
|
| 479 | .issue = io_futex_wake,
|
| 480 | #else
|
| 481 | .prep = io_eopnotsupp_prep,
|
| 482 | #endif
|
| 483 | },
|
| 484 | [IORING_OP_FUTEX_WAITV] = {
|
| 485 | #if defined(CONFIG_FUTEX)
|
| 486 | .prep = io_futexv_prep,
|
| 487 | .issue = io_futexv_wait,
|
| 488 | #else
|
| 489 | .prep = io_eopnotsupp_prep,
|
| 490 | #endif
|
| 491 | },
|
| 492 | [IORING_OP_FIXED_FD_INSTALL] = {
|
| 493 | .needs_file = 1,
|
| 494 | .prep = io_install_fixed_fd_prep,
|
| 495 | .issue = io_install_fixed_fd,
|
| 496 | },
|
| 497 | [IORING_OP_FTRUNCATE] = {
|
| 498 | .needs_file = 1,
|
| 499 | .hash_reg_file = 1,
|
| 500 | .prep = io_ftruncate_prep,
|
| 501 | .issue = io_ftruncate,
|
| 502 | },
|
| 503 | [IORING_OP_BIND] = {
|
| 504 | #if defined(CONFIG_NET)
|
| 505 | .needs_file = 1,
|
| 506 | .prep = io_bind_prep,
|
| 507 | .issue = io_bind,
|
| 508 | .async_size = sizeof(struct sockaddr_storage),
|
| 509 | #else
|
| 510 | .prep = io_eopnotsupp_prep,
|
| 511 | #endif
|
| 512 | },
|
| 513 | [IORING_OP_LISTEN] = {
|
| 514 | #if defined(CONFIG_NET)
|
| 515 | .needs_file = 1,
|
| 516 | .prep = io_listen_prep,
|
| 517 | .issue = io_listen,
|
| 518 | #else
|
| 519 | .prep = io_eopnotsupp_prep,
|
| 520 | #endif
|
| 521 | },
|
| 522 | [IORING_OP_RECV_ZC] = {
|
| 523 | .audit_skip = 1,
|
| 524 | .needs_file = 1,
|
| 525 | .unbound_nonreg_file = 1,
|
| 526 | .pollin = 1,
|
| 527 | .ioprio = 1,
|
| 528 | #if defined(CONFIG_NET)
|
| 529 | .prep = io_recvzc_prep,
|
| 530 | .issue = io_recvzc,
|
| 531 | #else
|
| 532 | .prep = io_eopnotsupp_prep,
|
| 533 | #endif
|
| 534 | },
|
| 535 | [IORING_OP_EPOLL_WAIT] = {
|
| 536 | .needs_file = 1,
|
| 537 | .audit_skip = 1,
|
| 538 | .pollin = 1,
|
| 539 | #if defined(CONFIG_EPOLL)
|
| 540 | .prep = io_epoll_wait_prep,
|
| 541 | .issue = io_epoll_wait,
|
| 542 | #else
|
| 543 | .prep = io_eopnotsupp_prep,
|
| 544 | #endif
|
| 545 | },
|
| 546 | [IORING_OP_READV_FIXED] = {
|
| 547 | .needs_file = 1,
|
| 548 | .unbound_nonreg_file = 1,
|
| 549 | .pollin = 1,
|
| 550 | .plug = 1,
|
| 551 | .audit_skip = 1,
|
| 552 | .ioprio = 1,
|
| 553 | .iopoll = 1,
|
| 554 | .vectored = 1,
|
| 555 | .async_size = sizeof(struct io_async_rw),
|
| 556 | .prep = io_prep_readv_fixed,
|
| 557 | .issue = io_read,
|
| 558 | },
|
| 559 | [IORING_OP_WRITEV_FIXED] = {
|
| 560 | .needs_file = 1,
|
| 561 | .hash_reg_file = 1,
|
| 562 | .unbound_nonreg_file = 1,
|
| 563 | .pollout = 1,
|
| 564 | .plug = 1,
|
| 565 | .audit_skip = 1,
|
| 566 | .ioprio = 1,
|
| 567 | .iopoll = 1,
|
| 568 | .vectored = 1,
|
| 569 | .async_size = sizeof(struct io_async_rw),
|
| 570 | .prep = io_prep_writev_fixed,
|
| 571 | .issue = io_write,
|
| 572 | },
|
| 573 | [IORING_OP_PIPE] = {
|
| 574 | .prep = io_pipe_prep,
|
| 575 | .issue = io_pipe,
|
| 576 | },
|
| 577 | [IORING_OP_NOP128] = {
|
| 578 | .audit_skip = 1,
|
| 579 | .iopoll = 1,
|
| 580 | .is_128 = 1,
|
| 581 | .prep = io_nop_prep,
|
| 582 | .issue = io_nop,
|
| 583 | },
|
| 584 | [IORING_OP_URING_CMD128] = {
|
| 585 | .buffer_select = 1,
|
| 586 | .needs_file = 1,
|
| 587 | .plug = 1,
|
| 588 | .iopoll = 1,
|
| 589 | .is_128 = 1,
|
| 590 | .async_size = sizeof(struct io_async_cmd),
|
| 591 | .prep = io_uring_cmd_prep,
|
| 592 | .issue = io_uring_cmd,
|
| 593 | },
|
| 594 | };
|
| 595 |
|
| 596 | const struct io_cold_def io_cold_defs[] = {
|
| 597 | [IORING_OP_NOP] = {
|
| 598 | .name = "NOP",
|
| 599 | },
|
| 600 | [IORING_OP_READV] = {
|
| 601 | .name = "READV",
|
| 602 | .cleanup = io_readv_writev_cleanup,
|
| 603 | .fail = io_rw_fail,
|
| 604 | },
|
| 605 | [IORING_OP_WRITEV] = {
|
| 606 | .name = "WRITEV",
|
| 607 | .cleanup = io_readv_writev_cleanup,
|
| 608 | .fail = io_rw_fail,
|
| 609 | },
|
| 610 | [IORING_OP_FSYNC] = {
|
| 611 | .name = "FSYNC",
|
| 612 | },
|
| 613 | [IORING_OP_READ_FIXED] = {
|
| 614 | .name = "READ_FIXED",
|
| 615 | .cleanup = io_readv_writev_cleanup,
|
| 616 | .fail = io_rw_fail,
|
| 617 | },
|
| 618 | [IORING_OP_WRITE_FIXED] = {
|
| 619 | .name = "WRITE_FIXED",
|
| 620 | .cleanup = io_readv_writev_cleanup,
|
| 621 | .fail = io_rw_fail,
|
| 622 | },
|
| 623 | [IORING_OP_POLL_ADD] = {
|
| 624 | .name = "POLL_ADD",
|
| 625 | },
|
| 626 | [IORING_OP_POLL_REMOVE] = {
|
| 627 | .name = "POLL_REMOVE",
|
| 628 | },
|
| 629 | [IORING_OP_SYNC_FILE_RANGE] = {
|
| 630 | .name = "SYNC_FILE_RANGE",
|
| 631 | },
|
| 632 | [IORING_OP_SENDMSG] = {
|
| 633 | .name = "SENDMSG",
|
| 634 | #if defined(CONFIG_NET)
|
| 635 | .cleanup = io_sendmsg_recvmsg_cleanup,
|
| 636 | .fail = io_sendrecv_fail,
|
| 637 | #endif
|
| 638 | },
|
| 639 | [IORING_OP_RECVMSG] = {
|
| 640 | .name = "RECVMSG",
|
| 641 | #if defined(CONFIG_NET)
|
| 642 | .cleanup = io_sendmsg_recvmsg_cleanup,
|
| 643 | .fail = io_sendrecv_fail,
|
| 644 | #endif
|
| 645 | },
|
| 646 | [IORING_OP_TIMEOUT] = {
|
| 647 | .name = "TIMEOUT",
|
| 648 | },
|
| 649 | [IORING_OP_TIMEOUT_REMOVE] = {
|
| 650 | .name = "TIMEOUT_REMOVE",
|
| 651 | },
|
| 652 | [IORING_OP_ACCEPT] = {
|
| 653 | .name = "ACCEPT",
|
| 654 | },
|
| 655 | [IORING_OP_ASYNC_CANCEL] = {
|
| 656 | .name = "ASYNC_CANCEL",
|
| 657 | },
|
| 658 | [IORING_OP_LINK_TIMEOUT] = {
|
| 659 | .name = "LINK_TIMEOUT",
|
| 660 | },
|
| 661 | [IORING_OP_CONNECT] = {
|
| 662 | .name = "CONNECT",
|
| 663 | },
|
| 664 | [IORING_OP_FALLOCATE] = {
|
| 665 | .name = "FALLOCATE",
|
| 666 | },
|
| 667 | [IORING_OP_OPENAT] = {
|
| 668 | .name = "OPENAT",
|
| 669 | .cleanup = io_open_cleanup,
|
| 670 | },
|
| 671 | [IORING_OP_CLOSE] = {
|
| 672 | .name = "CLOSE",
|
| 673 | },
|
| 674 | [IORING_OP_FILES_UPDATE] = {
|
| 675 | .name = "FILES_UPDATE",
|
| 676 | },
|
| 677 | [IORING_OP_STATX] = {
|
| 678 | .name = "STATX",
|
| 679 | .cleanup = io_statx_cleanup,
|
| 680 | },
|
| 681 | [IORING_OP_READ] = {
|
| 682 | .name = "READ",
|
| 683 | .cleanup = io_readv_writev_cleanup,
|
| 684 | .fail = io_rw_fail,
|
| 685 | },
|
| 686 | [IORING_OP_WRITE] = {
|
| 687 | .name = "WRITE",
|
| 688 | .cleanup = io_readv_writev_cleanup,
|
| 689 | .fail = io_rw_fail,
|
| 690 | },
|
| 691 | [IORING_OP_FADVISE] = {
|
| 692 | .name = "FADVISE",
|
| 693 | },
|
| 694 | [IORING_OP_MADVISE] = {
|
| 695 | .name = "MADVISE",
|
| 696 | },
|
| 697 | [IORING_OP_SEND] = {
|
| 698 | .name = "SEND",
|
| 699 | #if defined(CONFIG_NET)
|
| 700 | .cleanup = io_sendmsg_recvmsg_cleanup,
|
| 701 | .fail = io_sendrecv_fail,
|
| 702 | #endif
|
| 703 | },
|
| 704 | [IORING_OP_RECV] = {
|
| 705 | .name = "RECV",
|
| 706 | #if defined(CONFIG_NET)
|
| 707 | .cleanup = io_sendmsg_recvmsg_cleanup,
|
| 708 | .fail = io_sendrecv_fail,
|
| 709 | #endif
|
| 710 | },
|
| 711 | [IORING_OP_OPENAT2] = {
|
| 712 | .name = "OPENAT2",
|
| 713 | .cleanup = io_open_cleanup,
|
| 714 | },
|
| 715 | [IORING_OP_EPOLL_CTL] = {
|
| 716 | .name = "EPOLL",
|
| 717 | },
|
| 718 | [IORING_OP_SPLICE] = {
|
| 719 | .name = "SPLICE",
|
| 720 | .cleanup = io_splice_cleanup,
|
| 721 | },
|
| 722 | [IORING_OP_PROVIDE_BUFFERS] = {
|
| 723 | .name = "PROVIDE_BUFFERS",
|
| 724 | },
|
| 725 | [IORING_OP_REMOVE_BUFFERS] = {
|
| 726 | .name = "REMOVE_BUFFERS",
|
| 727 | },
|
| 728 | [IORING_OP_TEE] = {
|
| 729 | .name = "TEE",
|
| 730 | .cleanup = io_splice_cleanup,
|
| 731 | },
|
| 732 | [IORING_OP_SHUTDOWN] = {
|
| 733 | .name = "SHUTDOWN",
|
| 734 | },
|
| 735 | [IORING_OP_RENAMEAT] = {
|
| 736 | .name = "RENAMEAT",
|
| 737 | .cleanup = io_renameat_cleanup,
|
| 738 | },
|
| 739 | [IORING_OP_UNLINKAT] = {
|
| 740 | .name = "UNLINKAT",
|
| 741 | .cleanup = io_unlinkat_cleanup,
|
| 742 | },
|
| 743 | [IORING_OP_MKDIRAT] = {
|
| 744 | .name = "MKDIRAT",
|
| 745 | .cleanup = io_mkdirat_cleanup,
|
| 746 | },
|
| 747 | [IORING_OP_SYMLINKAT] = {
|
| 748 | .name = "SYMLINKAT",
|
| 749 | .cleanup = io_link_cleanup,
|
| 750 | },
|
| 751 | [IORING_OP_LINKAT] = {
|
| 752 | .name = "LINKAT",
|
| 753 | .cleanup = io_link_cleanup,
|
| 754 | },
|
| 755 | [IORING_OP_MSG_RING] = {
|
| 756 | .name = "MSG_RING",
|
| 757 | .cleanup = io_msg_ring_cleanup,
|
| 758 | },
|
| 759 | [IORING_OP_FSETXATTR] = {
|
| 760 | .name = "FSETXATTR",
|
| 761 | .cleanup = io_xattr_cleanup,
|
| 762 | },
|
| 763 | [IORING_OP_SETXATTR] = {
|
| 764 | .name = "SETXATTR",
|
| 765 | .cleanup = io_xattr_cleanup,
|
| 766 | },
|
| 767 | [IORING_OP_FGETXATTR] = {
|
| 768 | .name = "FGETXATTR",
|
| 769 | .cleanup = io_xattr_cleanup,
|
| 770 | },
|
| 771 | [IORING_OP_GETXATTR] = {
|
| 772 | .name = "GETXATTR",
|
| 773 | .cleanup = io_xattr_cleanup,
|
| 774 | },
|
| 775 | [IORING_OP_SOCKET] = {
|
| 776 | .name = "SOCKET",
|
| 777 | },
|
| 778 | [IORING_OP_URING_CMD] = {
|
| 779 | .name = "URING_CMD",
|
| 780 | .sqe_copy = io_uring_cmd_sqe_copy,
|
| 781 | .cleanup = io_uring_cmd_cleanup,
|
| 782 | },
|
| 783 | [IORING_OP_SEND_ZC] = {
|
| 784 | .name = "SEND_ZC",
|
| 785 | #if defined(CONFIG_NET)
|
| 786 | .cleanup = io_send_zc_cleanup,
|
| 787 | .fail = io_sendrecv_fail,
|
| 788 | #endif
|
| 789 | },
|
| 790 | [IORING_OP_SENDMSG_ZC] = {
|
| 791 | .name = "SENDMSG_ZC",
|
| 792 | #if defined(CONFIG_NET)
|
| 793 | .cleanup = io_send_zc_cleanup,
|
| 794 | .fail = io_sendrecv_fail,
|
| 795 | #endif
|
| 796 | },
|
| 797 | [IORING_OP_READ_MULTISHOT] = {
|
| 798 | .name = "READ_MULTISHOT",
|
| 799 | .cleanup = io_readv_writev_cleanup,
|
| 800 | },
|
| 801 | [IORING_OP_WAITID] = {
|
| 802 | .name = "WAITID",
|
| 803 | },
|
| 804 | [IORING_OP_FUTEX_WAIT] = {
|
| 805 | .name = "FUTEX_WAIT",
|
| 806 | },
|
| 807 | [IORING_OP_FUTEX_WAKE] = {
|
| 808 | .name = "FUTEX_WAKE",
|
| 809 | },
|
| 810 | [IORING_OP_FUTEX_WAITV] = {
|
| 811 | .name = "FUTEX_WAITV",
|
| 812 | },
|
| 813 | [IORING_OP_FIXED_FD_INSTALL] = {
|
| 814 | .name = "FIXED_FD_INSTALL",
|
| 815 | },
|
| 816 | [IORING_OP_FTRUNCATE] = {
|
| 817 | .name = "FTRUNCATE",
|
| 818 | },
|
| 819 | [IORING_OP_BIND] = {
|
| 820 | .name = "BIND",
|
| 821 | },
|
| 822 | [IORING_OP_LISTEN] = {
|
| 823 | .name = "LISTEN",
|
| 824 | },
|
| 825 | [IORING_OP_RECV_ZC] = {
|
| 826 | .name = "RECV_ZC",
|
| 827 | },
|
| 828 | [IORING_OP_EPOLL_WAIT] = {
|
| 829 | .name = "EPOLL_WAIT",
|
| 830 | },
|
| 831 | [IORING_OP_READV_FIXED] = {
|
| 832 | .name = "READV_FIXED",
|
| 833 | .cleanup = io_readv_writev_cleanup,
|
| 834 | .fail = io_rw_fail,
|
| 835 | },
|
| 836 | [IORING_OP_WRITEV_FIXED] = {
|
| 837 | .name = "WRITEV_FIXED",
|
| 838 | .cleanup = io_readv_writev_cleanup,
|
| 839 | .fail = io_rw_fail,
|
| 840 | },
|
| 841 | [IORING_OP_PIPE] = {
|
| 842 | .name = "PIPE",
|
| 843 | },
|
| 844 | [IORING_OP_NOP128] = {
|
| 845 | .name = "NOP128",
|
| 846 | },
|
| 847 | [IORING_OP_URING_CMD128] = {
|
| 848 | .name = "URING_CMD128",
|
| 849 | .sqe_copy = io_uring_cmd_sqe_copy,
|
| 850 | .cleanup = io_uring_cmd_cleanup,
|
| 851 | },
|
| 852 | };
|
| 853 |
|
| 854 | const char *io_uring_get_opcode(u8 opcode)
|
| 855 | {
|
| 856 | if (opcode < IORING_OP_LAST)
|
| 857 | return io_cold_defs[opcode].name;
|
| 858 | return "INVALID";
|
| 859 | }
|
| 860 |
|
| 861 | bool io_uring_op_supported(u8 opcode)
|
| 862 | {
|
| 863 | if (opcode < IORING_OP_LAST &&
|
| 864 | io_issue_defs[opcode].prep != io_eopnotsupp_prep)
|
| 865 | return true;
|
| 866 | return false;
|
| 867 | }
|
| 868 |
|
| 869 | void __init io_uring_optable_init(void)
|
| 870 | {
|
| 871 | int i;
|
| 872 |
|
| 873 | BUILD_BUG_ON(ARRAY_SIZE(io_cold_defs) != IORING_OP_LAST);
|
| 874 | BUILD_BUG_ON(ARRAY_SIZE(io_issue_defs) != IORING_OP_LAST);
|
| 875 |
|
| 876 | for (i = 0; i < ARRAY_SIZE(io_issue_defs); i++) {
|
| 877 | BUG_ON(!io_issue_defs[i].prep);
|
| 878 | if (io_issue_defs[i].prep != io_eopnotsupp_prep)
|
| 879 | BUG_ON(!io_issue_defs[i].issue);
|
| 880 | WARN_ON_ONCE(!io_cold_defs[i].name);
|
| 881 | }
|
| 882 | }
|