1 /*- 2 * Copyright (c) 2004 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* 30 * Regression test to do some very basic AIO exercising on several types of 31 * file descriptors. Currently, the tests consist of initializing a fixed 32 * size buffer with pseudo-random data, writing it to one fd using AIO, then 33 * reading it from a second descriptor using AIO. For some targets, the same 34 * fd is used for write and read (i.e., file, md device), but for others the 35 * operation is performed on a peer (pty, socket, fifo, etc). For each file 36 * descriptor type, several completion methods are tested. This test program 37 * does not attempt to exercise error cases or more subtle asynchronous 38 * behavior, just make sure that the basic operations work on some basic object 39 * types. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/module.h> 44 #include <sys/resource.h> 45 #include <sys/socket.h> 46 #include <sys/stat.h> 47 #include <sys/mdioctl.h> 48 49 #include <aio.h> 50 #include <err.h> 51 #include <errno.h> 52 #include <fcntl.h> 53 #include <libutil.h> 54 #include <limits.h> 55 #include <semaphore.h> 56 #include <stdint.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <termios.h> 61 #include <unistd.h> 62 63 #include <atf-c.h> 64 65 #include "freebsd_test_suite/macros.h" 66 #include "local.h" 67 68 /* 69 * GLOBAL_MAX sets the largest usable buffer size to be read and written, as 70 * it sizes ac_buffer in the aio_context structure. It is also the default 71 * size for file I/O. For other types, we use smaller blocks or we risk 72 * blocking (and we run in a single process/thread so that would be bad). 73 */ 74 #define GLOBAL_MAX 16384 75 76 #define BUFFER_MAX GLOBAL_MAX 77 78 /* 79 * A completion function will block until the aio has completed, then return 80 * the result of the aio. errno will be set appropriately. 81 */ 82 typedef ssize_t (*completion)(struct aiocb*); 83 84 struct aio_context { 85 int ac_read_fd, ac_write_fd; 86 long ac_seed; 87 char ac_buffer[GLOBAL_MAX]; 88 int ac_buflen; 89 int ac_seconds; 90 }; 91 92 static sem_t completions; 93 94 95 /* 96 * Fill a buffer given a seed that can be fed into srandom() to initialize 97 * the PRNG in a repeatable manner. 98 */ 99 static void 100 aio_fill_buffer(char *buffer, int len, long seed) 101 { 102 char ch; 103 int i; 104 105 srandom(seed); 106 for (i = 0; i < len; i++) { 107 ch = random() & 0xff; 108 buffer[i] = ch; 109 } 110 } 111 112 /* 113 * Test that a buffer matches a given seed. See aio_fill_buffer(). Return 114 * (1) on a match, (0) on a mismatch. 115 */ 116 static int 117 aio_test_buffer(char *buffer, int len, long seed) 118 { 119 char ch; 120 int i; 121 122 srandom(seed); 123 for (i = 0; i < len; i++) { 124 ch = random() & 0xff; 125 if (buffer[i] != ch) 126 return (0); 127 } 128 return (1); 129 } 130 131 /* 132 * Initialize a testing context given the file descriptors provided by the 133 * test setup. 134 */ 135 static void 136 aio_context_init(struct aio_context *ac, int read_fd, 137 int write_fd, int buflen) 138 { 139 140 ATF_REQUIRE_MSG(buflen <= BUFFER_MAX, 141 "aio_context_init: buffer too large (%d > %d)", 142 buflen, BUFFER_MAX); 143 bzero(ac, sizeof(*ac)); 144 ac->ac_read_fd = read_fd; 145 ac->ac_write_fd = write_fd; 146 ac->ac_buflen = buflen; 147 srandomdev(); 148 ac->ac_seed = random(); 149 aio_fill_buffer(ac->ac_buffer, buflen, ac->ac_seed); 150 ATF_REQUIRE_MSG(aio_test_buffer(ac->ac_buffer, buflen, 151 ac->ac_seed) != 0, "aio_test_buffer: internal error"); 152 } 153 154 static ssize_t 155 poll(struct aiocb *aio) 156 { 157 int error; 158 159 while ((error = aio_error(aio)) == EINPROGRESS) 160 usleep(25000); 161 if (error) 162 return (error); 163 else 164 return (aio_return(aio)); 165 } 166 167 static void 168 sigusr1_handler(int sig __unused) 169 { 170 ATF_REQUIRE_EQ(0, sem_post(&completions)); 171 } 172 173 static void 174 thr_handler(union sigval sv __unused) 175 { 176 ATF_REQUIRE_EQ(0, sem_post(&completions)); 177 } 178 179 static ssize_t 180 poll_signaled(struct aiocb *aio) 181 { 182 int error; 183 184 ATF_REQUIRE_EQ(0, sem_wait(&completions)); 185 error = aio_error(aio); 186 switch (error) { 187 case EINPROGRESS: 188 errno = EINTR; 189 return (-1); 190 case 0: 191 return (aio_return(aio)); 192 default: 193 return (error); 194 } 195 } 196 197 /* 198 * Setup a signal handler for signal delivery tests 199 * This isn't thread safe, but it's ok since ATF runs each testcase in a 200 * separate process 201 */ 202 static struct sigevent* 203 setup_signal(void) 204 { 205 static struct sigevent sev; 206 207 ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0)); 208 sev.sigev_notify = SIGEV_SIGNAL; 209 sev.sigev_signo = SIGUSR1; 210 ATF_REQUIRE(SIG_ERR != signal(SIGUSR1, sigusr1_handler)); 211 return (&sev); 212 } 213 214 /* 215 * Setup a thread for thread delivery tests 216 * This isn't thread safe, but it's ok since ATF runs each testcase in a 217 * separate process 218 */ 219 static struct sigevent* 220 setup_thread(void) 221 { 222 static struct sigevent sev; 223 224 ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0)); 225 sev.sigev_notify = SIGEV_THREAD; 226 sev.sigev_notify_function = thr_handler; 227 sev.sigev_notify_attributes = NULL; 228 return (&sev); 229 } 230 231 static ssize_t 232 suspend(struct aiocb *aio) 233 { 234 const struct aiocb *const iocbs[] = {aio}; 235 int error; 236 237 error = aio_suspend(iocbs, 1, NULL); 238 if (error == 0) 239 return (aio_return(aio)); 240 else 241 return (error); 242 } 243 244 static ssize_t 245 waitcomplete(struct aiocb *aio) 246 { 247 struct aiocb *aiop; 248 ssize_t ret; 249 250 ret = aio_waitcomplete(&aiop, NULL); 251 ATF_REQUIRE_EQ(aio, aiop); 252 return (ret); 253 } 254 255 /* 256 * Perform a simple write test of our initialized data buffer to the provided 257 * file descriptor. 258 */ 259 static void 260 aio_write_test(struct aio_context *ac, completion comp, struct sigevent *sev) 261 { 262 struct aiocb aio; 263 ssize_t len; 264 265 bzero(&aio, sizeof(aio)); 266 aio.aio_buf = ac->ac_buffer; 267 aio.aio_nbytes = ac->ac_buflen; 268 aio.aio_fildes = ac->ac_write_fd; 269 aio.aio_offset = 0; 270 if (sev) 271 aio.aio_sigevent = *sev; 272 273 if (aio_write(&aio) < 0) 274 atf_tc_fail("aio_write failed: %s", strerror(errno)); 275 276 len = comp(&aio); 277 if (len < 0) 278 atf_tc_fail("aio failed: %s", strerror(errno)); 279 280 if (len != ac->ac_buflen) 281 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 282 } 283 284 /* 285 * Perform a vectored I/O test of our initialized data buffer to the provided 286 * file descriptor. 287 * 288 * To vectorize the linear buffer, chop it up into two pieces of dissimilar 289 * size, and swap their offsets. 290 */ 291 static void 292 aio_writev_test(struct aio_context *ac, completion comp, struct sigevent *sev) 293 { 294 struct aiocb aio; 295 struct iovec iov[2]; 296 size_t len0, len1; 297 ssize_t len; 298 299 bzero(&aio, sizeof(aio)); 300 301 aio.aio_fildes = ac->ac_write_fd; 302 aio.aio_offset = 0; 303 len0 = ac->ac_buflen * 3 / 4; 304 len1 = ac->ac_buflen / 4; 305 iov[0].iov_base = ac->ac_buffer + len1; 306 iov[0].iov_len = len0; 307 iov[1].iov_base = ac->ac_buffer; 308 iov[1].iov_len = len1; 309 aio.aio_iov = iov; 310 aio.aio_iovcnt = 2; 311 if (sev) 312 aio.aio_sigevent = *sev; 313 314 if (aio_writev(&aio) < 0) 315 atf_tc_fail("aio_writev failed: %s", strerror(errno)); 316 317 len = comp(&aio); 318 if (len < 0) 319 atf_tc_fail("aio failed: %s", strerror(errno)); 320 321 if (len != ac->ac_buflen) 322 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 323 } 324 325 /* 326 * Perform a simple read test of our initialized data buffer from the 327 * provided file descriptor. 328 */ 329 static void 330 aio_read_test(struct aio_context *ac, completion comp, struct sigevent *sev) 331 { 332 struct aiocb aio; 333 ssize_t len; 334 335 bzero(ac->ac_buffer, ac->ac_buflen); 336 bzero(&aio, sizeof(aio)); 337 aio.aio_buf = ac->ac_buffer; 338 aio.aio_nbytes = ac->ac_buflen; 339 aio.aio_fildes = ac->ac_read_fd; 340 aio.aio_offset = 0; 341 if (sev) 342 aio.aio_sigevent = *sev; 343 344 if (aio_read(&aio) < 0) 345 atf_tc_fail("aio_read failed: %s", strerror(errno)); 346 347 len = comp(&aio); 348 if (len < 0) 349 atf_tc_fail("aio failed: %s", strerror(errno)); 350 351 ATF_REQUIRE_EQ_MSG(len, ac->ac_buflen, 352 "aio short read (%jd)", (intmax_t)len); 353 354 if (aio_test_buffer(ac->ac_buffer, ac->ac_buflen, ac->ac_seed) == 0) 355 atf_tc_fail("buffer mismatched"); 356 } 357 358 static void 359 aio_readv_test(struct aio_context *ac, completion comp, struct sigevent *sev) 360 { 361 struct aiocb aio; 362 struct iovec iov[2]; 363 size_t len0, len1; 364 ssize_t len; 365 366 bzero(ac->ac_buffer, ac->ac_buflen); 367 bzero(&aio, sizeof(aio)); 368 aio.aio_fildes = ac->ac_read_fd; 369 aio.aio_offset = 0; 370 len0 = ac->ac_buflen * 3 / 4; 371 len1 = ac->ac_buflen / 4; 372 iov[0].iov_base = ac->ac_buffer + len1; 373 iov[0].iov_len = len0; 374 iov[1].iov_base = ac->ac_buffer; 375 iov[1].iov_len = len1; 376 aio.aio_iov = iov; 377 aio.aio_iovcnt = 2; 378 if (sev) 379 aio.aio_sigevent = *sev; 380 381 if (aio_readv(&aio) < 0) 382 atf_tc_fail("aio_read failed: %s", strerror(errno)); 383 384 len = comp(&aio); 385 if (len < 0) 386 atf_tc_fail("aio failed: %s", strerror(errno)); 387 388 ATF_REQUIRE_EQ_MSG(len, ac->ac_buflen, 389 "aio short read (%jd)", (intmax_t)len); 390 391 if (aio_test_buffer(ac->ac_buffer, ac->ac_buflen, ac->ac_seed) == 0) 392 atf_tc_fail("buffer mismatched"); 393 } 394 395 /* 396 * Series of type-specific tests for AIO. For now, we just make sure we can 397 * issue a write and then a read to each type. We assume that once a write 398 * is issued, a read can follow. 399 */ 400 401 /* 402 * Test with a classic file. Assumes we can create a moderate size temporary 403 * file. 404 */ 405 #define FILE_LEN GLOBAL_MAX 406 #define FILE_PATHNAME "testfile" 407 408 static void 409 aio_file_test(completion comp, struct sigevent *sev, bool vectored) 410 { 411 struct aio_context ac; 412 int fd; 413 414 ATF_REQUIRE_KERNEL_MODULE("aio"); 415 ATF_REQUIRE_UNSAFE_AIO(); 416 417 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 418 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 419 420 aio_context_init(&ac, fd, fd, FILE_LEN); 421 if (vectored) { 422 aio_writev_test(&ac, comp, sev); 423 aio_readv_test(&ac, comp, sev); 424 } else { 425 aio_write_test(&ac, comp, sev); 426 aio_read_test(&ac, comp, sev); 427 } 428 close(fd); 429 } 430 431 ATF_TC_WITHOUT_HEAD(file_poll); 432 ATF_TC_BODY(file_poll, tc) 433 { 434 aio_file_test(poll, NULL, false); 435 } 436 437 ATF_TC_WITHOUT_HEAD(file_signal); 438 ATF_TC_BODY(file_signal, tc) 439 { 440 aio_file_test(poll_signaled, setup_signal(), false); 441 } 442 443 ATF_TC_WITHOUT_HEAD(file_suspend); 444 ATF_TC_BODY(file_suspend, tc) 445 { 446 aio_file_test(suspend, NULL, false); 447 } 448 449 ATF_TC_WITHOUT_HEAD(file_thread); 450 ATF_TC_BODY(file_thread, tc) 451 { 452 aio_file_test(poll_signaled, setup_thread(), false); 453 } 454 455 ATF_TC_WITHOUT_HEAD(file_waitcomplete); 456 ATF_TC_BODY(file_waitcomplete, tc) 457 { 458 aio_file_test(waitcomplete, NULL, false); 459 } 460 461 #define FIFO_LEN 256 462 #define FIFO_PATHNAME "testfifo" 463 464 static void 465 aio_fifo_test(completion comp, struct sigevent *sev) 466 { 467 int error, read_fd = -1, write_fd = -1; 468 struct aio_context ac; 469 470 ATF_REQUIRE_KERNEL_MODULE("aio"); 471 ATF_REQUIRE_UNSAFE_AIO(); 472 473 ATF_REQUIRE_MSG(mkfifo(FIFO_PATHNAME, 0600) != -1, 474 "mkfifo failed: %s", strerror(errno)); 475 476 read_fd = open(FIFO_PATHNAME, O_RDONLY | O_NONBLOCK); 477 if (read_fd == -1) { 478 error = errno; 479 errno = error; 480 atf_tc_fail("read_fd open failed: %s", 481 strerror(errno)); 482 } 483 484 write_fd = open(FIFO_PATHNAME, O_WRONLY); 485 if (write_fd == -1) { 486 error = errno; 487 errno = error; 488 atf_tc_fail("write_fd open failed: %s", 489 strerror(errno)); 490 } 491 492 aio_context_init(&ac, read_fd, write_fd, FIFO_LEN); 493 aio_write_test(&ac, comp, sev); 494 aio_read_test(&ac, comp, sev); 495 496 close(read_fd); 497 close(write_fd); 498 } 499 500 ATF_TC_WITHOUT_HEAD(fifo_poll); 501 ATF_TC_BODY(fifo_poll, tc) 502 { 503 aio_fifo_test(poll, NULL); 504 } 505 506 ATF_TC_WITHOUT_HEAD(fifo_signal); 507 ATF_TC_BODY(fifo_signal, tc) 508 { 509 aio_fifo_test(poll_signaled, setup_signal()); 510 } 511 512 ATF_TC_WITHOUT_HEAD(fifo_suspend); 513 ATF_TC_BODY(fifo_suspend, tc) 514 { 515 aio_fifo_test(suspend, NULL); 516 } 517 518 ATF_TC_WITHOUT_HEAD(fifo_thread); 519 ATF_TC_BODY(fifo_thread, tc) 520 { 521 aio_fifo_test(poll_signaled, setup_thread()); 522 } 523 524 ATF_TC_WITHOUT_HEAD(fifo_waitcomplete); 525 ATF_TC_BODY(fifo_waitcomplete, tc) 526 { 527 aio_fifo_test(waitcomplete, NULL); 528 } 529 530 #define UNIX_SOCKETPAIR_LEN 256 531 static void 532 aio_unix_socketpair_test(completion comp, struct sigevent *sev, bool vectored) 533 { 534 struct aio_context ac; 535 struct rusage ru_before, ru_after; 536 int sockets[2]; 537 538 ATF_REQUIRE_KERNEL_MODULE("aio"); 539 540 ATF_REQUIRE_MSG(socketpair(PF_UNIX, SOCK_STREAM, 0, sockets) != -1, 541 "socketpair failed: %s", strerror(errno)); 542 543 aio_context_init(&ac, sockets[0], sockets[1], UNIX_SOCKETPAIR_LEN); 544 ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_before) != -1, 545 "getrusage failed: %s", strerror(errno)); 546 if (vectored) { 547 aio_writev_test(&ac, comp, sev); 548 aio_readv_test(&ac, comp, sev); 549 } else { 550 aio_write_test(&ac, comp, sev); 551 aio_read_test(&ac, comp, sev); 552 } 553 ATF_REQUIRE_MSG(getrusage(RUSAGE_SELF, &ru_after) != -1, 554 "getrusage failed: %s", strerror(errno)); 555 ATF_REQUIRE(ru_after.ru_msgsnd == ru_before.ru_msgsnd + 1); 556 ATF_REQUIRE(ru_after.ru_msgrcv == ru_before.ru_msgrcv + 1); 557 558 close(sockets[0]); 559 close(sockets[1]); 560 } 561 562 ATF_TC_WITHOUT_HEAD(socket_poll); 563 ATF_TC_BODY(socket_poll, tc) 564 { 565 aio_unix_socketpair_test(poll, NULL, false); 566 } 567 568 ATF_TC_WITHOUT_HEAD(socket_signal); 569 ATF_TC_BODY(socket_signal, tc) 570 { 571 aio_unix_socketpair_test(poll_signaled, setup_signal(), false); 572 } 573 574 ATF_TC_WITHOUT_HEAD(socket_suspend); 575 ATF_TC_BODY(socket_suspend, tc) 576 { 577 aio_unix_socketpair_test(suspend, NULL, false); 578 } 579 580 ATF_TC_WITHOUT_HEAD(socket_thread); 581 ATF_TC_BODY(socket_thread, tc) 582 { 583 aio_unix_socketpair_test(poll_signaled, setup_thread(), false); 584 } 585 586 ATF_TC_WITHOUT_HEAD(socket_waitcomplete); 587 ATF_TC_BODY(socket_waitcomplete, tc) 588 { 589 aio_unix_socketpair_test(waitcomplete, NULL, false); 590 } 591 592 struct aio_pty_arg { 593 int apa_read_fd; 594 int apa_write_fd; 595 }; 596 597 #define PTY_LEN 256 598 static void 599 aio_pty_test(completion comp, struct sigevent *sev) 600 { 601 struct aio_context ac; 602 int read_fd, write_fd; 603 struct termios ts; 604 int error; 605 606 ATF_REQUIRE_KERNEL_MODULE("aio"); 607 ATF_REQUIRE_UNSAFE_AIO(); 608 609 ATF_REQUIRE_MSG(openpty(&read_fd, &write_fd, NULL, NULL, NULL) == 0, 610 "openpty failed: %s", strerror(errno)); 611 612 613 if (tcgetattr(write_fd, &ts) < 0) { 614 error = errno; 615 errno = error; 616 atf_tc_fail("tcgetattr failed: %s", strerror(errno)); 617 } 618 cfmakeraw(&ts); 619 if (tcsetattr(write_fd, TCSANOW, &ts) < 0) { 620 error = errno; 621 errno = error; 622 atf_tc_fail("tcsetattr failed: %s", strerror(errno)); 623 } 624 aio_context_init(&ac, read_fd, write_fd, PTY_LEN); 625 626 aio_write_test(&ac, comp, sev); 627 aio_read_test(&ac, comp, sev); 628 629 close(read_fd); 630 close(write_fd); 631 } 632 633 ATF_TC_WITHOUT_HEAD(pty_poll); 634 ATF_TC_BODY(pty_poll, tc) 635 { 636 aio_pty_test(poll, NULL); 637 } 638 639 ATF_TC_WITHOUT_HEAD(pty_signal); 640 ATF_TC_BODY(pty_signal, tc) 641 { 642 aio_pty_test(poll_signaled, setup_signal()); 643 } 644 645 ATF_TC_WITHOUT_HEAD(pty_suspend); 646 ATF_TC_BODY(pty_suspend, tc) 647 { 648 aio_pty_test(suspend, NULL); 649 } 650 651 ATF_TC_WITHOUT_HEAD(pty_thread); 652 ATF_TC_BODY(pty_thread, tc) 653 { 654 aio_pty_test(poll_signaled, setup_thread()); 655 } 656 657 ATF_TC_WITHOUT_HEAD(pty_waitcomplete); 658 ATF_TC_BODY(pty_waitcomplete, tc) 659 { 660 aio_pty_test(waitcomplete, NULL); 661 } 662 663 #define PIPE_LEN 256 664 static void 665 aio_pipe_test(completion comp, struct sigevent *sev) 666 { 667 struct aio_context ac; 668 int pipes[2]; 669 670 ATF_REQUIRE_KERNEL_MODULE("aio"); 671 ATF_REQUIRE_UNSAFE_AIO(); 672 673 ATF_REQUIRE_MSG(pipe(pipes) != -1, 674 "pipe failed: %s", strerror(errno)); 675 676 aio_context_init(&ac, pipes[0], pipes[1], PIPE_LEN); 677 aio_write_test(&ac, comp, sev); 678 aio_read_test(&ac, comp, sev); 679 680 close(pipes[0]); 681 close(pipes[1]); 682 } 683 684 ATF_TC_WITHOUT_HEAD(pipe_poll); 685 ATF_TC_BODY(pipe_poll, tc) 686 { 687 aio_pipe_test(poll, NULL); 688 } 689 690 ATF_TC_WITHOUT_HEAD(pipe_signal); 691 ATF_TC_BODY(pipe_signal, tc) 692 { 693 aio_pipe_test(poll_signaled, setup_signal()); 694 } 695 696 ATF_TC_WITHOUT_HEAD(pipe_suspend); 697 ATF_TC_BODY(pipe_suspend, tc) 698 { 699 aio_pipe_test(suspend, NULL); 700 } 701 702 ATF_TC_WITHOUT_HEAD(pipe_thread); 703 ATF_TC_BODY(pipe_thread, tc) 704 { 705 aio_pipe_test(poll_signaled, setup_thread()); 706 } 707 708 ATF_TC_WITHOUT_HEAD(pipe_waitcomplete); 709 ATF_TC_BODY(pipe_waitcomplete, tc) 710 { 711 aio_pipe_test(waitcomplete, NULL); 712 } 713 714 #define MD_LEN GLOBAL_MAX 715 #define MDUNIT_LINK "mdunit_link" 716 717 static int 718 aio_md_setup(void) 719 { 720 int error, fd, mdctl_fd, unit; 721 char pathname[PATH_MAX]; 722 struct md_ioctl mdio; 723 char buf[80]; 724 725 ATF_REQUIRE_KERNEL_MODULE("aio"); 726 727 mdctl_fd = open("/dev/" MDCTL_NAME, O_RDWR, 0); 728 ATF_REQUIRE_MSG(mdctl_fd != -1, 729 "opening /dev/%s failed: %s", MDCTL_NAME, strerror(errno)); 730 731 bzero(&mdio, sizeof(mdio)); 732 mdio.md_version = MDIOVERSION; 733 mdio.md_type = MD_MALLOC; 734 mdio.md_options = MD_AUTOUNIT | MD_COMPRESS; 735 mdio.md_mediasize = GLOBAL_MAX; 736 mdio.md_sectorsize = 512; 737 738 if (ioctl(mdctl_fd, MDIOCATTACH, &mdio) < 0) { 739 error = errno; 740 errno = error; 741 atf_tc_fail("ioctl MDIOCATTACH failed: %s", strerror(errno)); 742 } 743 close(mdctl_fd); 744 745 /* Store the md unit number in a symlink for future cleanup */ 746 unit = mdio.md_unit; 747 snprintf(buf, sizeof(buf), "%d", unit); 748 ATF_REQUIRE_EQ(0, symlink(buf, MDUNIT_LINK)); 749 snprintf(pathname, PATH_MAX, "/dev/md%d", unit); 750 fd = open(pathname, O_RDWR); 751 ATF_REQUIRE_MSG(fd != -1, 752 "opening %s failed: %s", pathname, strerror(errno)); 753 754 return (fd); 755 } 756 757 static void 758 aio_md_cleanup(void) 759 { 760 struct md_ioctl mdio; 761 int mdctl_fd, n, unit; 762 char buf[80]; 763 764 mdctl_fd = open("/dev/" MDCTL_NAME, O_RDWR, 0); 765 if (mdctl_fd < 0) { 766 fprintf(stderr, "opening /dev/%s failed: %s\n", MDCTL_NAME, 767 strerror(errno)); 768 return; 769 } 770 n = readlink(MDUNIT_LINK, buf, sizeof(buf)); 771 if (n > 0) { 772 if (sscanf(buf, "%d", &unit) == 1 && unit >= 0) { 773 bzero(&mdio, sizeof(mdio)); 774 mdio.md_version = MDIOVERSION; 775 mdio.md_unit = unit; 776 if (ioctl(mdctl_fd, MDIOCDETACH, &mdio) == -1) { 777 fprintf(stderr, 778 "ioctl MDIOCDETACH unit %d failed: %s\n", 779 unit, strerror(errno)); 780 } 781 } 782 } 783 784 close(mdctl_fd); 785 } 786 787 static void 788 aio_md_test(completion comp, struct sigevent *sev, bool vectored) 789 { 790 struct aio_context ac; 791 int fd; 792 793 fd = aio_md_setup(); 794 aio_context_init(&ac, fd, fd, MD_LEN); 795 if (vectored) { 796 aio_writev_test(&ac, comp, sev); 797 aio_readv_test(&ac, comp, sev); 798 } else { 799 aio_write_test(&ac, comp, sev); 800 aio_read_test(&ac, comp, sev); 801 } 802 803 close(fd); 804 } 805 806 ATF_TC_WITH_CLEANUP(md_poll); 807 ATF_TC_HEAD(md_poll, tc) 808 { 809 810 atf_tc_set_md_var(tc, "require.user", "root"); 811 } 812 ATF_TC_BODY(md_poll, tc) 813 { 814 aio_md_test(poll, NULL, false); 815 } 816 ATF_TC_CLEANUP(md_poll, tc) 817 { 818 aio_md_cleanup(); 819 } 820 821 ATF_TC_WITH_CLEANUP(md_signal); 822 ATF_TC_HEAD(md_signal, tc) 823 { 824 825 atf_tc_set_md_var(tc, "require.user", "root"); 826 } 827 ATF_TC_BODY(md_signal, tc) 828 { 829 aio_md_test(poll_signaled, setup_signal(), false); 830 } 831 ATF_TC_CLEANUP(md_signal, tc) 832 { 833 aio_md_cleanup(); 834 } 835 836 ATF_TC_WITH_CLEANUP(md_suspend); 837 ATF_TC_HEAD(md_suspend, tc) 838 { 839 840 atf_tc_set_md_var(tc, "require.user", "root"); 841 } 842 ATF_TC_BODY(md_suspend, tc) 843 { 844 aio_md_test(suspend, NULL, false); 845 } 846 ATF_TC_CLEANUP(md_suspend, tc) 847 { 848 aio_md_cleanup(); 849 } 850 851 ATF_TC_WITH_CLEANUP(md_thread); 852 ATF_TC_HEAD(md_thread, tc) 853 { 854 855 atf_tc_set_md_var(tc, "require.user", "root"); 856 } 857 ATF_TC_BODY(md_thread, tc) 858 { 859 aio_md_test(poll_signaled, setup_thread(), false); 860 } 861 ATF_TC_CLEANUP(md_thread, tc) 862 { 863 aio_md_cleanup(); 864 } 865 866 ATF_TC_WITH_CLEANUP(md_waitcomplete); 867 ATF_TC_HEAD(md_waitcomplete, tc) 868 { 869 870 atf_tc_set_md_var(tc, "require.user", "root"); 871 } 872 ATF_TC_BODY(md_waitcomplete, tc) 873 { 874 aio_md_test(waitcomplete, NULL, false); 875 } 876 ATF_TC_CLEANUP(md_waitcomplete, tc) 877 { 878 aio_md_cleanup(); 879 } 880 881 #define ZVOL_VDEV_PATHNAME "test_vdev" 882 #define POOL_SIZE (1 << 28) /* 256 MB */ 883 #define ZVOL_SIZE "64m" 884 #define POOL_NAME "aio_testpool" 885 #define ZVOL_NAME "aio_testvol" 886 887 static int 888 aio_zvol_setup(void) 889 { 890 FILE *pidfile; 891 int fd; 892 pid_t pid; 893 char pool_name[80]; 894 char cmd[160]; 895 char zvol_name[160]; 896 char devname[160]; 897 898 ATF_REQUIRE_KERNEL_MODULE("aio"); 899 ATF_REQUIRE_KERNEL_MODULE("zfs"); 900 901 fd = open(ZVOL_VDEV_PATHNAME, O_RDWR | O_CREAT, 0600); 902 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 903 ATF_REQUIRE_EQ_MSG(0, 904 ftruncate(fd, POOL_SIZE), "ftruncate failed: %s", strerror(errno)); 905 close(fd); 906 907 pid = getpid(); 908 pidfile = fopen("pidfile", "w"); 909 ATF_REQUIRE_MSG(NULL != pidfile, "fopen: %s", strerror(errno)); 910 fprintf(pidfile, "%d", pid); 911 fclose(pidfile); 912 913 snprintf(pool_name, sizeof(pool_name), POOL_NAME ".%d", pid); 914 snprintf(zvol_name, sizeof(zvol_name), "%s/" ZVOL_NAME, pool_name); 915 snprintf(cmd, sizeof(cmd), "zpool create %s $PWD/" ZVOL_VDEV_PATHNAME, 916 pool_name); 917 ATF_REQUIRE_EQ_MSG(0, system(cmd), 918 "zpool create failed: %s", strerror(errno)); 919 snprintf(cmd, sizeof(cmd), 920 "zfs create -o volblocksize=8192 -o volmode=dev -V " 921 ZVOL_SIZE " %s", zvol_name); 922 ATF_REQUIRE_EQ_MSG(0, system(cmd), 923 "zfs create failed: %s", strerror(errno)); 924 /* 925 * XXX Due to bug 251828, we need an extra "zfs set" here 926 * https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251828 927 */ 928 snprintf(cmd, sizeof(cmd), "zfs set volmode=dev %s", zvol_name); 929 ATF_REQUIRE_EQ_MSG(0, system(cmd), 930 "zfs set failed: %s", strerror(errno)); 931 932 snprintf(devname, sizeof(devname), "/dev/zvol/%s", zvol_name); 933 do { 934 fd = open(devname, O_RDWR); 935 } while (fd == -1 && errno == EINTR) ; 936 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 937 return (fd); 938 } 939 940 static void 941 aio_zvol_cleanup(void) 942 { 943 FILE *pidfile; 944 pid_t testpid; 945 char cmd[160]; 946 947 pidfile = fopen("pidfile", "r"); 948 if (pidfile == NULL && errno == ENOENT) { 949 /* Setup probably failed */ 950 return; 951 } 952 ATF_REQUIRE_MSG(NULL != pidfile, "fopen: %s", strerror(errno)); 953 ATF_REQUIRE_EQ(1, fscanf(pidfile, "%d", &testpid)); 954 fclose(pidfile); 955 956 snprintf(cmd, sizeof(cmd), "zpool destroy " POOL_NAME ".%d", testpid); 957 system(cmd); 958 } 959 960 961 ATF_TC_WITHOUT_HEAD(aio_large_read_test); 962 ATF_TC_BODY(aio_large_read_test, tc) 963 { 964 struct aiocb cb, *cbp; 965 ssize_t nread; 966 size_t len; 967 int fd; 968 #ifdef __LP64__ 969 int clamped; 970 #endif 971 972 ATF_REQUIRE_KERNEL_MODULE("aio"); 973 ATF_REQUIRE_UNSAFE_AIO(); 974 975 #ifdef __LP64__ 976 len = sizeof(clamped); 977 if (sysctlbyname("debug.iosize_max_clamp", &clamped, &len, NULL, 0) == 978 -1) 979 atf_libc_error(errno, "Failed to read debug.iosize_max_clamp"); 980 #endif 981 982 /* Determine the maximum supported read(2) size. */ 983 len = SSIZE_MAX; 984 #ifdef __LP64__ 985 if (clamped) 986 len = INT_MAX; 987 #endif 988 989 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 990 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 991 992 unlink(FILE_PATHNAME); 993 994 memset(&cb, 0, sizeof(cb)); 995 cb.aio_nbytes = len; 996 cb.aio_fildes = fd; 997 cb.aio_buf = NULL; 998 if (aio_read(&cb) == -1) 999 atf_tc_fail("aio_read() of maximum read size failed: %s", 1000 strerror(errno)); 1001 1002 nread = aio_waitcomplete(&cbp, NULL); 1003 if (nread == -1) 1004 atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno)); 1005 if (nread != 0) 1006 atf_tc_fail("aio_read() from empty file returned data: %zd", 1007 nread); 1008 1009 memset(&cb, 0, sizeof(cb)); 1010 cb.aio_nbytes = len + 1; 1011 cb.aio_fildes = fd; 1012 cb.aio_buf = NULL; 1013 if (aio_read(&cb) == -1) { 1014 if (errno == EINVAL) 1015 goto finished; 1016 atf_tc_fail("aio_read() of too large read size failed: %s", 1017 strerror(errno)); 1018 } 1019 1020 nread = aio_waitcomplete(&cbp, NULL); 1021 if (nread == -1) { 1022 if (errno == EINVAL) 1023 goto finished; 1024 atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno)); 1025 } 1026 atf_tc_fail("aio_read() of too large read size returned: %zd", nread); 1027 1028 finished: 1029 close(fd); 1030 } 1031 1032 /* 1033 * This tests for a bug where arriving socket data can wakeup multiple 1034 * AIO read requests resulting in an uncancellable request. 1035 */ 1036 ATF_TC_WITHOUT_HEAD(aio_socket_two_reads); 1037 ATF_TC_BODY(aio_socket_two_reads, tc) 1038 { 1039 struct ioreq { 1040 struct aiocb iocb; 1041 char buffer[1024]; 1042 } ioreq[2]; 1043 struct aiocb *iocb; 1044 unsigned i; 1045 int s[2]; 1046 char c; 1047 1048 ATF_REQUIRE_KERNEL_MODULE("aio"); 1049 #if __FreeBSD_version < 1100101 1050 aft_tc_skip("kernel version %d is too old (%d required)", 1051 __FreeBSD_version, 1100101); 1052 #endif 1053 1054 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1055 1056 /* Queue two read requests. */ 1057 memset(&ioreq, 0, sizeof(ioreq)); 1058 for (i = 0; i < nitems(ioreq); i++) { 1059 ioreq[i].iocb.aio_nbytes = sizeof(ioreq[i].buffer); 1060 ioreq[i].iocb.aio_fildes = s[0]; 1061 ioreq[i].iocb.aio_buf = ioreq[i].buffer; 1062 ATF_REQUIRE(aio_read(&ioreq[i].iocb) == 0); 1063 } 1064 1065 /* Send a single byte. This should complete one request. */ 1066 c = 0xc3; 1067 ATF_REQUIRE(write(s[1], &c, sizeof(c)) == 1); 1068 1069 ATF_REQUIRE(aio_waitcomplete(&iocb, NULL) == 1); 1070 1071 /* Determine which request completed and verify the data was read. */ 1072 if (iocb == &ioreq[0].iocb) 1073 i = 0; 1074 else 1075 i = 1; 1076 ATF_REQUIRE(ioreq[i].buffer[0] == c); 1077 1078 i ^= 1; 1079 1080 /* 1081 * Try to cancel the other request. On broken systems this 1082 * will fail and the process will hang on exit. 1083 */ 1084 ATF_REQUIRE(aio_error(&ioreq[i].iocb) == EINPROGRESS); 1085 ATF_REQUIRE(aio_cancel(s[0], &ioreq[i].iocb) == AIO_CANCELED); 1086 1087 close(s[1]); 1088 close(s[0]); 1089 } 1090 1091 static void 1092 aio_socket_blocking_short_write_test(bool vectored) 1093 { 1094 struct aiocb iocb, *iocbp; 1095 struct iovec iov[2]; 1096 char *buffer[2]; 1097 ssize_t done, r; 1098 int buffer_size, sb_size; 1099 socklen_t len; 1100 int s[2]; 1101 1102 ATF_REQUIRE_KERNEL_MODULE("aio"); 1103 1104 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1105 1106 len = sizeof(sb_size); 1107 ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) != 1108 -1); 1109 ATF_REQUIRE(len == sizeof(sb_size)); 1110 buffer_size = sb_size; 1111 1112 ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) != 1113 -1); 1114 ATF_REQUIRE(len == sizeof(sb_size)); 1115 if (sb_size > buffer_size) 1116 buffer_size = sb_size; 1117 1118 /* 1119 * Use twice the size of the MAX(receive buffer, send buffer) 1120 * to ensure that the write is split up into multiple writes 1121 * internally. 1122 */ 1123 buffer_size *= 2; 1124 1125 buffer[0] = malloc(buffer_size); 1126 ATF_REQUIRE(buffer[0] != NULL); 1127 buffer[1] = malloc(buffer_size); 1128 ATF_REQUIRE(buffer[1] != NULL); 1129 1130 srandomdev(); 1131 aio_fill_buffer(buffer[1], buffer_size, random()); 1132 1133 memset(&iocb, 0, sizeof(iocb)); 1134 iocb.aio_fildes = s[1]; 1135 if (vectored) { 1136 iov[0].iov_base = buffer[1]; 1137 iov[0].iov_len = buffer_size / 2 + 1; 1138 iov[1].iov_base = buffer[1] + buffer_size / 2 + 1; 1139 iov[1].iov_len = buffer_size / 2 - 1; 1140 iocb.aio_iov = iov; 1141 iocb.aio_iovcnt = 2; 1142 r = aio_writev(&iocb); 1143 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1144 } else { 1145 iocb.aio_buf = buffer[1]; 1146 iocb.aio_nbytes = buffer_size; 1147 r = aio_write(&iocb); 1148 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1149 } 1150 1151 done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL); 1152 ATF_REQUIRE(done == buffer_size); 1153 1154 done = aio_waitcomplete(&iocbp, NULL); 1155 ATF_REQUIRE(iocbp == &iocb); 1156 ATF_REQUIRE(done == buffer_size); 1157 1158 ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0); 1159 1160 close(s[1]); 1161 close(s[0]); 1162 } 1163 1164 /* 1165 * This test ensures that aio_write() on a blocking socket of a "large" 1166 * buffer does not return a short completion. 1167 */ 1168 ATF_TC_WITHOUT_HEAD(aio_socket_blocking_short_write); 1169 ATF_TC_BODY(aio_socket_blocking_short_write, tc) 1170 { 1171 aio_socket_blocking_short_write_test(false); 1172 } 1173 1174 /* 1175 * Like aio_socket_blocking_short_write, but also tests that partially 1176 * completed vectored sends can be retried correctly. 1177 */ 1178 ATF_TC_WITHOUT_HEAD(aio_socket_blocking_short_write_vectored); 1179 ATF_TC_BODY(aio_socket_blocking_short_write_vectored, tc) 1180 { 1181 aio_socket_blocking_short_write_test(true); 1182 } 1183 1184 /* 1185 * This test verifies that cancelling a partially completed socket write 1186 * returns a short write rather than ECANCELED. 1187 */ 1188 ATF_TC_WITHOUT_HEAD(aio_socket_short_write_cancel); 1189 ATF_TC_BODY(aio_socket_short_write_cancel, tc) 1190 { 1191 struct aiocb iocb, *iocbp; 1192 char *buffer[2]; 1193 ssize_t done; 1194 int buffer_size, sb_size; 1195 socklen_t len; 1196 int s[2]; 1197 1198 ATF_REQUIRE_KERNEL_MODULE("aio"); 1199 1200 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1201 1202 len = sizeof(sb_size); 1203 ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) != 1204 -1); 1205 ATF_REQUIRE(len == sizeof(sb_size)); 1206 buffer_size = sb_size; 1207 1208 ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) != 1209 -1); 1210 ATF_REQUIRE(len == sizeof(sb_size)); 1211 if (sb_size > buffer_size) 1212 buffer_size = sb_size; 1213 1214 /* 1215 * Use three times the size of the MAX(receive buffer, send 1216 * buffer) for the write to ensure that the write is split up 1217 * into multiple writes internally. The recv() ensures that 1218 * the write has partially completed, but a remaining size of 1219 * two buffers should ensure that the write has not completed 1220 * fully when it is cancelled. 1221 */ 1222 buffer[0] = malloc(buffer_size); 1223 ATF_REQUIRE(buffer[0] != NULL); 1224 buffer[1] = malloc(buffer_size * 3); 1225 ATF_REQUIRE(buffer[1] != NULL); 1226 1227 srandomdev(); 1228 aio_fill_buffer(buffer[1], buffer_size * 3, random()); 1229 1230 memset(&iocb, 0, sizeof(iocb)); 1231 iocb.aio_fildes = s[1]; 1232 iocb.aio_buf = buffer[1]; 1233 iocb.aio_nbytes = buffer_size * 3; 1234 ATF_REQUIRE(aio_write(&iocb) == 0); 1235 1236 done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL); 1237 ATF_REQUIRE(done == buffer_size); 1238 1239 ATF_REQUIRE(aio_error(&iocb) == EINPROGRESS); 1240 ATF_REQUIRE(aio_cancel(s[1], &iocb) == AIO_NOTCANCELED); 1241 1242 done = aio_waitcomplete(&iocbp, NULL); 1243 ATF_REQUIRE(iocbp == &iocb); 1244 ATF_REQUIRE(done >= buffer_size && done <= buffer_size * 2); 1245 1246 ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0); 1247 1248 close(s[1]); 1249 close(s[0]); 1250 } 1251 1252 /* 1253 * test aio_fsync's behavior with bad inputs 1254 */ 1255 ATF_TC_WITHOUT_HEAD(aio_fsync_errors); 1256 ATF_TC_BODY(aio_fsync_errors, tc) 1257 { 1258 int fd; 1259 struct aiocb iocb; 1260 1261 ATF_REQUIRE_KERNEL_MODULE("aio"); 1262 ATF_REQUIRE_UNSAFE_AIO(); 1263 1264 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 1265 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1266 unlink(FILE_PATHNAME); 1267 1268 /* aio_fsync should return EINVAL unless op is O_SYNC or O_DSYNC */ 1269 memset(&iocb, 0, sizeof(iocb)); 1270 iocb.aio_fildes = fd; 1271 ATF_CHECK_EQ(-1, aio_fsync(666, &iocb)); 1272 ATF_CHECK_EQ(EINVAL, errno); 1273 1274 /* aio_fsync should return EBADF if fd is not a valid descriptor */ 1275 memset(&iocb, 0, sizeof(iocb)); 1276 iocb.aio_fildes = 666; 1277 ATF_CHECK_EQ(-1, aio_fsync(O_SYNC, &iocb)); 1278 ATF_CHECK_EQ(EBADF, errno); 1279 1280 /* aio_fsync should return EINVAL if sigev_notify is invalid */ 1281 memset(&iocb, 0, sizeof(iocb)); 1282 iocb.aio_fildes = fd; 1283 iocb.aio_sigevent.sigev_notify = 666; 1284 ATF_CHECK_EQ(-1, aio_fsync(666, &iocb)); 1285 ATF_CHECK_EQ(EINVAL, errno); 1286 } 1287 1288 /* 1289 * This test just performs a basic test of aio_fsync(). 1290 */ 1291 static void 1292 aio_fsync_test(int op) 1293 { 1294 struct aiocb synccb, *iocbp; 1295 struct { 1296 struct aiocb iocb; 1297 bool done; 1298 char *buffer; 1299 } buffers[16]; 1300 struct stat sb; 1301 ssize_t rval; 1302 unsigned i; 1303 int fd; 1304 1305 ATF_REQUIRE_KERNEL_MODULE("aio"); 1306 ATF_REQUIRE_UNSAFE_AIO(); 1307 1308 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 1309 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1310 unlink(FILE_PATHNAME); 1311 1312 ATF_REQUIRE(fstat(fd, &sb) == 0); 1313 ATF_REQUIRE(sb.st_blksize != 0); 1314 ATF_REQUIRE(ftruncate(fd, sb.st_blksize * nitems(buffers)) == 0); 1315 1316 /* 1317 * Queue several asynchronous write requests. Hopefully this 1318 * forces the aio_fsync() request to be deferred. There is no 1319 * reliable way to guarantee that however. 1320 */ 1321 srandomdev(); 1322 for (i = 0; i < nitems(buffers); i++) { 1323 buffers[i].done = false; 1324 memset(&buffers[i].iocb, 0, sizeof(buffers[i].iocb)); 1325 buffers[i].buffer = malloc(sb.st_blksize); 1326 aio_fill_buffer(buffers[i].buffer, sb.st_blksize, random()); 1327 buffers[i].iocb.aio_fildes = fd; 1328 buffers[i].iocb.aio_buf = buffers[i].buffer; 1329 buffers[i].iocb.aio_nbytes = sb.st_blksize; 1330 buffers[i].iocb.aio_offset = sb.st_blksize * i; 1331 ATF_REQUIRE(aio_write(&buffers[i].iocb) == 0); 1332 } 1333 1334 /* Queue the aio_fsync request. */ 1335 memset(&synccb, 0, sizeof(synccb)); 1336 synccb.aio_fildes = fd; 1337 ATF_REQUIRE(aio_fsync(op, &synccb) == 0); 1338 1339 /* Wait for requests to complete. */ 1340 for (;;) { 1341 next: 1342 rval = aio_waitcomplete(&iocbp, NULL); 1343 ATF_REQUIRE(iocbp != NULL); 1344 if (iocbp == &synccb) { 1345 ATF_REQUIRE(rval == 0); 1346 break; 1347 } 1348 1349 for (i = 0; i < nitems(buffers); i++) { 1350 if (iocbp == &buffers[i].iocb) { 1351 ATF_REQUIRE(buffers[i].done == false); 1352 ATF_REQUIRE(rval == sb.st_blksize); 1353 buffers[i].done = true; 1354 goto next; 1355 } 1356 } 1357 1358 ATF_REQUIRE_MSG(false, "unmatched AIO request"); 1359 } 1360 1361 for (i = 0; i < nitems(buffers); i++) 1362 ATF_REQUIRE_MSG(buffers[i].done, 1363 "AIO request %u did not complete", i); 1364 1365 close(fd); 1366 } 1367 1368 ATF_TC_WITHOUT_HEAD(aio_fsync_sync_test); 1369 ATF_TC_BODY(aio_fsync_sync_test, tc) 1370 { 1371 aio_fsync_test(O_SYNC); 1372 } 1373 1374 ATF_TC_WITHOUT_HEAD(aio_fsync_dsync_test); 1375 ATF_TC_BODY(aio_fsync_dsync_test, tc) 1376 { 1377 aio_fsync_test(O_DSYNC); 1378 } 1379 1380 /* 1381 * We shouldn't be able to DoS the system by setting iov_len to an insane 1382 * value 1383 */ 1384 ATF_TC_WITHOUT_HEAD(aio_writev_dos_iov_len); 1385 ATF_TC_BODY(aio_writev_dos_iov_len, tc) 1386 { 1387 struct aiocb aio; 1388 const struct aiocb *const iocbs[] = {&aio}; 1389 const char *wbuf = "Hello, world!"; 1390 struct iovec iov[1]; 1391 ssize_t len, r; 1392 int fd; 1393 1394 ATF_REQUIRE_KERNEL_MODULE("aio"); 1395 ATF_REQUIRE_UNSAFE_AIO(); 1396 1397 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1398 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1399 1400 len = strlen(wbuf); 1401 iov[0].iov_base = __DECONST(void*, wbuf); 1402 iov[0].iov_len = 1 << 30; 1403 bzero(&aio, sizeof(aio)); 1404 aio.aio_fildes = fd; 1405 aio.aio_offset = 0; 1406 aio.aio_iov = iov; 1407 aio.aio_iovcnt = 1; 1408 1409 r = aio_writev(&aio); 1410 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1411 ATF_REQUIRE_EQ(0, aio_suspend(iocbs, 1, NULL)); 1412 r = aio_return(&aio); 1413 ATF_CHECK_EQ_MSG(-1, r, "aio_return returned %zd", r); 1414 ATF_CHECK_MSG(errno == EFAULT || errno == EINVAL, 1415 "aio_writev: %s", strerror(errno)); 1416 1417 close(fd); 1418 } 1419 1420 /* 1421 * We shouldn't be able to DoS the system by setting aio_iovcnt to an insane 1422 * value 1423 */ 1424 ATF_TC_WITHOUT_HEAD(aio_writev_dos_iovcnt); 1425 ATF_TC_BODY(aio_writev_dos_iovcnt, tc) 1426 { 1427 struct aiocb aio; 1428 const char *wbuf = "Hello, world!"; 1429 struct iovec iov[1]; 1430 ssize_t len; 1431 int fd; 1432 1433 ATF_REQUIRE_KERNEL_MODULE("aio"); 1434 ATF_REQUIRE_UNSAFE_AIO(); 1435 1436 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1437 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1438 1439 len = strlen(wbuf); 1440 iov[0].iov_base = __DECONST(void*, wbuf); 1441 iov[0].iov_len = len; 1442 bzero(&aio, sizeof(aio)); 1443 aio.aio_fildes = fd; 1444 aio.aio_offset = 0; 1445 aio.aio_iov = iov; 1446 aio.aio_iovcnt = 1 << 30; 1447 1448 ATF_REQUIRE_EQ(-1, aio_writev(&aio)); 1449 ATF_CHECK_EQ(EINVAL, errno); 1450 1451 close(fd); 1452 } 1453 1454 ATF_TC_WITH_CLEANUP(aio_writev_efault); 1455 ATF_TC_HEAD(aio_writev_efault, tc) 1456 { 1457 atf_tc_set_md_var(tc, "descr", 1458 "Vectored AIO should gracefully handle invalid addresses"); 1459 atf_tc_set_md_var(tc, "require.user", "root"); 1460 } 1461 ATF_TC_BODY(aio_writev_efault, tc) 1462 { 1463 struct aiocb aio; 1464 ssize_t buflen; 1465 char *buffer; 1466 struct iovec iov[2]; 1467 long seed; 1468 int fd; 1469 1470 ATF_REQUIRE_KERNEL_MODULE("aio"); 1471 ATF_REQUIRE_UNSAFE_AIO(); 1472 1473 fd = aio_md_setup(); 1474 1475 seed = random(); 1476 buflen = 4096; 1477 buffer = malloc(buflen); 1478 aio_fill_buffer(buffer, buflen, seed); 1479 iov[0].iov_base = buffer; 1480 iov[0].iov_len = buflen; 1481 iov[1].iov_base = (void*)-1; /* Invalid! */ 1482 iov[1].iov_len = buflen; 1483 bzero(&aio, sizeof(aio)); 1484 aio.aio_fildes = fd; 1485 aio.aio_offset = 0; 1486 aio.aio_iov = iov; 1487 aio.aio_iovcnt = nitems(iov); 1488 1489 ATF_REQUIRE_EQ(-1, aio_writev(&aio)); 1490 ATF_CHECK_EQ(EFAULT, errno); 1491 1492 close(fd); 1493 } 1494 ATF_TC_CLEANUP(aio_writev_efault, tc) 1495 { 1496 aio_md_cleanup(); 1497 } 1498 1499 ATF_TC_WITHOUT_HEAD(aio_writev_empty_file_poll); 1500 ATF_TC_BODY(aio_writev_empty_file_poll, tc) 1501 { 1502 struct aiocb aio; 1503 int fd; 1504 1505 ATF_REQUIRE_KERNEL_MODULE("aio"); 1506 ATF_REQUIRE_UNSAFE_AIO(); 1507 1508 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1509 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1510 1511 bzero(&aio, sizeof(aio)); 1512 aio.aio_fildes = fd; 1513 aio.aio_offset = 0; 1514 aio.aio_iovcnt = 0; 1515 1516 ATF_REQUIRE_EQ(0, aio_writev(&aio)); 1517 ATF_REQUIRE_EQ(0, suspend(&aio)); 1518 1519 close(fd); 1520 } 1521 1522 ATF_TC_WITHOUT_HEAD(aio_writev_empty_file_signal); 1523 ATF_TC_BODY(aio_writev_empty_file_signal, tc) 1524 { 1525 struct aiocb aio; 1526 int fd; 1527 1528 ATF_REQUIRE_KERNEL_MODULE("aio"); 1529 ATF_REQUIRE_UNSAFE_AIO(); 1530 1531 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1532 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1533 1534 bzero(&aio, sizeof(aio)); 1535 aio.aio_fildes = fd; 1536 aio.aio_offset = 0; 1537 aio.aio_iovcnt = 0; 1538 aio.aio_sigevent = *setup_signal(); 1539 1540 ATF_REQUIRE_EQ(0, aio_writev(&aio)); 1541 ATF_REQUIRE_EQ(0, poll_signaled(&aio)); 1542 1543 close(fd); 1544 } 1545 1546 // aio_writev and aio_readv should still work even if the iovcnt is greater 1547 // than the number of buffered AIO operations permitted per process. 1548 ATF_TC_WITH_CLEANUP(vectored_big_iovcnt); 1549 ATF_TC_HEAD(vectored_big_iovcnt, tc) 1550 { 1551 atf_tc_set_md_var(tc, "descr", 1552 "Vectored AIO should still work even if the iovcnt is greater than " 1553 "the number of buffered AIO operations permitted by the process"); 1554 atf_tc_set_md_var(tc, "require.user", "root"); 1555 } 1556 ATF_TC_BODY(vectored_big_iovcnt, tc) 1557 { 1558 struct aiocb aio; 1559 struct iovec *iov; 1560 ssize_t len, buflen; 1561 char *buffer; 1562 const char *oid = "vfs.aio.max_buf_aio"; 1563 long seed; 1564 int max_buf_aio; 1565 int fd, i; 1566 ssize_t sysctl_len = sizeof(max_buf_aio); 1567 1568 ATF_REQUIRE_KERNEL_MODULE("aio"); 1569 ATF_REQUIRE_UNSAFE_AIO(); 1570 1571 if (sysctlbyname(oid, &max_buf_aio, &sysctl_len, NULL, 0) == -1) 1572 atf_libc_error(errno, "Failed to read %s", oid); 1573 1574 seed = random(); 1575 buflen = 512 * (max_buf_aio + 1); 1576 buffer = malloc(buflen); 1577 aio_fill_buffer(buffer, buflen, seed); 1578 iov = calloc(max_buf_aio + 1, sizeof(struct iovec)); 1579 1580 fd = aio_md_setup(); 1581 1582 bzero(&aio, sizeof(aio)); 1583 aio.aio_fildes = fd; 1584 aio.aio_offset = 0; 1585 for (i = 0; i < max_buf_aio + 1; i++) { 1586 iov[i].iov_base = &buffer[i * 512]; 1587 iov[i].iov_len = 512; 1588 } 1589 aio.aio_iov = iov; 1590 aio.aio_iovcnt = max_buf_aio + 1; 1591 1592 if (aio_writev(&aio) < 0) 1593 atf_tc_fail("aio_writev failed: %s", strerror(errno)); 1594 1595 len = poll(&aio); 1596 if (len < 0) 1597 atf_tc_fail("aio failed: %s", strerror(errno)); 1598 1599 if (len != buflen) 1600 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 1601 1602 bzero(&aio, sizeof(aio)); 1603 aio.aio_fildes = fd; 1604 aio.aio_offset = 0; 1605 aio.aio_iov = iov; 1606 aio.aio_iovcnt = max_buf_aio + 1; 1607 1608 if (aio_readv(&aio) < 0) 1609 atf_tc_fail("aio_readv failed: %s", strerror(errno)); 1610 1611 len = poll(&aio); 1612 if (len < 0) 1613 atf_tc_fail("aio failed: %s", strerror(errno)); 1614 1615 if (len != buflen) 1616 atf_tc_fail("aio short read (%jd)", (intmax_t)len); 1617 1618 if (aio_test_buffer(buffer, buflen, seed) == 0) 1619 atf_tc_fail("buffer mismatched"); 1620 1621 close(fd); 1622 } 1623 ATF_TC_CLEANUP(vectored_big_iovcnt, tc) 1624 { 1625 aio_md_cleanup(); 1626 } 1627 1628 ATF_TC_WITHOUT_HEAD(vectored_file_poll); 1629 ATF_TC_BODY(vectored_file_poll, tc) 1630 { 1631 aio_file_test(poll, NULL, true); 1632 } 1633 1634 ATF_TC_WITH_CLEANUP(vectored_md_poll); 1635 ATF_TC_HEAD(vectored_md_poll, tc) 1636 { 1637 atf_tc_set_md_var(tc, "require.user", "root"); 1638 } 1639 ATF_TC_BODY(vectored_md_poll, tc) 1640 { 1641 aio_md_test(poll, NULL, true); 1642 } 1643 ATF_TC_CLEANUP(vectored_md_poll, tc) 1644 { 1645 aio_md_cleanup(); 1646 } 1647 1648 ATF_TC_WITHOUT_HEAD(vectored_socket_poll); 1649 ATF_TC_BODY(vectored_socket_poll, tc) 1650 { 1651 aio_unix_socketpair_test(poll, NULL, true); 1652 } 1653 1654 // aio_writev and aio_readv should still work even if the iov contains elements 1655 // that aren't a multiple of the device's sector size, and even if the total 1656 // amount if I/O _is_ a multiple of the device's sector size. 1657 ATF_TC_WITH_CLEANUP(vectored_unaligned); 1658 ATF_TC_HEAD(vectored_unaligned, tc) 1659 { 1660 atf_tc_set_md_var(tc, "descr", 1661 "Vectored AIO should still work even if the iov contains elements " 1662 "that aren't a multiple of the sector size."); 1663 atf_tc_set_md_var(tc, "require.user", "root"); 1664 } 1665 ATF_TC_BODY(vectored_unaligned, tc) 1666 { 1667 struct aio_context ac; 1668 struct aiocb aio; 1669 struct iovec iov[3]; 1670 ssize_t len, total_len; 1671 int fd; 1672 1673 ATF_REQUIRE_KERNEL_MODULE("aio"); 1674 ATF_REQUIRE_UNSAFE_AIO(); 1675 1676 /* 1677 * Use a zvol with volmode=dev, so it will allow .d_write with 1678 * unaligned uio. geom devices use physio, which doesn't allow that. 1679 */ 1680 fd = aio_zvol_setup(); 1681 aio_context_init(&ac, fd, fd, FILE_LEN); 1682 1683 /* Break the buffer into 3 parts: 1684 * * A 4kB part, aligned to 4kB 1685 * * Two other parts that add up to 4kB: 1686 * - 256B 1687 * - 4kB - 256B 1688 */ 1689 iov[0].iov_base = ac.ac_buffer; 1690 iov[0].iov_len = 4096; 1691 iov[1].iov_base = (void*)((uintptr_t)iov[0].iov_base + iov[0].iov_len); 1692 iov[1].iov_len = 256; 1693 iov[2].iov_base = (void*)((uintptr_t)iov[1].iov_base + iov[1].iov_len); 1694 iov[2].iov_len = 4096 - iov[1].iov_len; 1695 total_len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len; 1696 bzero(&aio, sizeof(aio)); 1697 aio.aio_fildes = ac.ac_write_fd; 1698 aio.aio_offset = 0; 1699 aio.aio_iov = iov; 1700 aio.aio_iovcnt = 3; 1701 1702 if (aio_writev(&aio) < 0) 1703 atf_tc_fail("aio_writev failed: %s", strerror(errno)); 1704 1705 len = poll(&aio); 1706 if (len < 0) 1707 atf_tc_fail("aio failed: %s", strerror(errno)); 1708 1709 if (len != total_len) 1710 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 1711 1712 bzero(&aio, sizeof(aio)); 1713 aio.aio_fildes = ac.ac_read_fd; 1714 aio.aio_offset = 0; 1715 aio.aio_iov = iov; 1716 aio.aio_iovcnt = 3; 1717 1718 if (aio_readv(&aio) < 0) 1719 atf_tc_fail("aio_readv failed: %s", strerror(errno)); 1720 len = poll(&aio); 1721 1722 ATF_REQUIRE_MSG(aio_test_buffer(ac.ac_buffer, total_len, 1723 ac.ac_seed) != 0, "aio_test_buffer: internal error"); 1724 1725 close(fd); 1726 } 1727 ATF_TC_CLEANUP(vectored_unaligned, tc) 1728 { 1729 aio_zvol_cleanup(); 1730 } 1731 1732 static void 1733 aio_zvol_test(completion comp, struct sigevent *sev, bool vectored) 1734 { 1735 struct aio_context ac; 1736 int fd; 1737 1738 fd = aio_zvol_setup(); 1739 aio_context_init(&ac, fd, fd, MD_LEN); 1740 if (vectored) { 1741 aio_writev_test(&ac, comp, sev); 1742 aio_readv_test(&ac, comp, sev); 1743 } else { 1744 aio_write_test(&ac, comp, sev); 1745 aio_read_test(&ac, comp, sev); 1746 } 1747 1748 close(fd); 1749 } 1750 1751 /* 1752 * Note that unlike md, the zvol is not a geom device, does not allow unmapped 1753 * buffers, and does not use physio. 1754 */ 1755 ATF_TC_WITH_CLEANUP(vectored_zvol_poll); 1756 ATF_TC_HEAD(vectored_zvol_poll, tc) 1757 { 1758 atf_tc_set_md_var(tc, "require.user", "root"); 1759 } 1760 ATF_TC_BODY(vectored_zvol_poll, tc) 1761 { 1762 aio_zvol_test(poll, NULL, true); 1763 } 1764 ATF_TC_CLEANUP(vectored_zvol_poll, tc) 1765 { 1766 aio_zvol_cleanup(); 1767 } 1768 1769 ATF_TP_ADD_TCS(tp) 1770 { 1771 1772 ATF_TP_ADD_TC(tp, file_poll); 1773 ATF_TP_ADD_TC(tp, file_signal); 1774 ATF_TP_ADD_TC(tp, file_suspend); 1775 ATF_TP_ADD_TC(tp, file_thread); 1776 ATF_TP_ADD_TC(tp, file_waitcomplete); 1777 ATF_TP_ADD_TC(tp, fifo_poll); 1778 ATF_TP_ADD_TC(tp, fifo_signal); 1779 ATF_TP_ADD_TC(tp, fifo_suspend); 1780 ATF_TP_ADD_TC(tp, fifo_thread); 1781 ATF_TP_ADD_TC(tp, fifo_waitcomplete); 1782 ATF_TP_ADD_TC(tp, socket_poll); 1783 ATF_TP_ADD_TC(tp, socket_signal); 1784 ATF_TP_ADD_TC(tp, socket_suspend); 1785 ATF_TP_ADD_TC(tp, socket_thread); 1786 ATF_TP_ADD_TC(tp, socket_waitcomplete); 1787 ATF_TP_ADD_TC(tp, pty_poll); 1788 ATF_TP_ADD_TC(tp, pty_signal); 1789 ATF_TP_ADD_TC(tp, pty_suspend); 1790 ATF_TP_ADD_TC(tp, pty_thread); 1791 ATF_TP_ADD_TC(tp, pty_waitcomplete); 1792 ATF_TP_ADD_TC(tp, pipe_poll); 1793 ATF_TP_ADD_TC(tp, pipe_signal); 1794 ATF_TP_ADD_TC(tp, pipe_suspend); 1795 ATF_TP_ADD_TC(tp, pipe_thread); 1796 ATF_TP_ADD_TC(tp, pipe_waitcomplete); 1797 ATF_TP_ADD_TC(tp, md_poll); 1798 ATF_TP_ADD_TC(tp, md_signal); 1799 ATF_TP_ADD_TC(tp, md_suspend); 1800 ATF_TP_ADD_TC(tp, md_thread); 1801 ATF_TP_ADD_TC(tp, md_waitcomplete); 1802 ATF_TP_ADD_TC(tp, aio_fsync_errors); 1803 ATF_TP_ADD_TC(tp, aio_fsync_sync_test); 1804 ATF_TP_ADD_TC(tp, aio_fsync_dsync_test); 1805 ATF_TP_ADD_TC(tp, aio_large_read_test); 1806 ATF_TP_ADD_TC(tp, aio_socket_two_reads); 1807 ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write); 1808 ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write_vectored); 1809 ATF_TP_ADD_TC(tp, aio_socket_short_write_cancel); 1810 ATF_TP_ADD_TC(tp, aio_writev_dos_iov_len); 1811 ATF_TP_ADD_TC(tp, aio_writev_dos_iovcnt); 1812 ATF_TP_ADD_TC(tp, aio_writev_efault); 1813 ATF_TP_ADD_TC(tp, aio_writev_empty_file_poll); 1814 ATF_TP_ADD_TC(tp, aio_writev_empty_file_signal); 1815 ATF_TP_ADD_TC(tp, vectored_big_iovcnt); 1816 ATF_TP_ADD_TC(tp, vectored_file_poll); 1817 ATF_TP_ADD_TC(tp, vectored_md_poll); 1818 ATF_TP_ADD_TC(tp, vectored_zvol_poll); 1819 ATF_TP_ADD_TC(tp, vectored_unaligned); 1820 ATF_TP_ADD_TC(tp, vectored_socket_poll); 1821 1822 return (atf_no_error()); 1823 } 1824