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, error, n, unit; 762 char buf[80]; 763 764 mdctl_fd = open("/dev/" MDCTL_NAME, O_RDWR, 0); 765 ATF_REQUIRE(mdctl_fd >= 0); 766 n = readlink(MDUNIT_LINK, buf, sizeof(buf)); 767 if (n > 0) { 768 if (sscanf(buf, "%d", &unit) == 1 && unit >= 0) { 769 bzero(&mdio, sizeof(mdio)); 770 mdio.md_version = MDIOVERSION; 771 mdio.md_unit = unit; 772 if (ioctl(mdctl_fd, MDIOCDETACH, &mdio) == -1) { 773 error = errno; 774 close(mdctl_fd); 775 errno = error; 776 atf_tc_fail("ioctl MDIOCDETACH failed: %s", 777 strerror(errno)); 778 } 779 } 780 } 781 782 close(mdctl_fd); 783 } 784 785 static void 786 aio_md_test(completion comp, struct sigevent *sev, bool vectored) 787 { 788 struct aio_context ac; 789 int fd; 790 791 fd = aio_md_setup(); 792 aio_context_init(&ac, fd, fd, MD_LEN); 793 if (vectored) { 794 aio_writev_test(&ac, comp, sev); 795 aio_readv_test(&ac, comp, sev); 796 } else { 797 aio_write_test(&ac, comp, sev); 798 aio_read_test(&ac, comp, sev); 799 } 800 801 close(fd); 802 } 803 804 ATF_TC_WITH_CLEANUP(md_poll); 805 ATF_TC_HEAD(md_poll, tc) 806 { 807 808 atf_tc_set_md_var(tc, "require.user", "root"); 809 } 810 ATF_TC_BODY(md_poll, tc) 811 { 812 aio_md_test(poll, NULL, false); 813 } 814 ATF_TC_CLEANUP(md_poll, tc) 815 { 816 aio_md_cleanup(); 817 } 818 819 ATF_TC_WITH_CLEANUP(md_signal); 820 ATF_TC_HEAD(md_signal, tc) 821 { 822 823 atf_tc_set_md_var(tc, "require.user", "root"); 824 } 825 ATF_TC_BODY(md_signal, tc) 826 { 827 aio_md_test(poll_signaled, setup_signal(), false); 828 } 829 ATF_TC_CLEANUP(md_signal, tc) 830 { 831 aio_md_cleanup(); 832 } 833 834 ATF_TC_WITH_CLEANUP(md_suspend); 835 ATF_TC_HEAD(md_suspend, tc) 836 { 837 838 atf_tc_set_md_var(tc, "require.user", "root"); 839 } 840 ATF_TC_BODY(md_suspend, tc) 841 { 842 aio_md_test(suspend, NULL, false); 843 } 844 ATF_TC_CLEANUP(md_suspend, tc) 845 { 846 aio_md_cleanup(); 847 } 848 849 ATF_TC_WITH_CLEANUP(md_thread); 850 ATF_TC_HEAD(md_thread, tc) 851 { 852 853 atf_tc_set_md_var(tc, "require.user", "root"); 854 } 855 ATF_TC_BODY(md_thread, tc) 856 { 857 aio_md_test(poll_signaled, setup_thread(), false); 858 } 859 ATF_TC_CLEANUP(md_thread, tc) 860 { 861 aio_md_cleanup(); 862 } 863 864 ATF_TC_WITH_CLEANUP(md_waitcomplete); 865 ATF_TC_HEAD(md_waitcomplete, tc) 866 { 867 868 atf_tc_set_md_var(tc, "require.user", "root"); 869 } 870 ATF_TC_BODY(md_waitcomplete, tc) 871 { 872 aio_md_test(waitcomplete, NULL, false); 873 } 874 ATF_TC_CLEANUP(md_waitcomplete, tc) 875 { 876 aio_md_cleanup(); 877 } 878 879 #define ZVOL_VDEV_PATHNAME "test_vdev" 880 #define POOL_SIZE (1 << 28) /* 256 MB */ 881 #define ZVOL_SIZE "64m" 882 #define POOL_NAME "aio_testpool" 883 #define ZVOL_NAME "aio_testvol" 884 885 static int 886 aio_zvol_setup(void) 887 { 888 FILE *pidfile; 889 int fd; 890 pid_t pid; 891 char pool_name[80]; 892 char cmd[160]; 893 char zvol_name[160]; 894 char devname[160]; 895 896 ATF_REQUIRE_KERNEL_MODULE("aio"); 897 ATF_REQUIRE_KERNEL_MODULE("zfs"); 898 899 fd = open(ZVOL_VDEV_PATHNAME, O_RDWR | O_CREAT, 0600); 900 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 901 ATF_REQUIRE_EQ_MSG(0, 902 ftruncate(fd, POOL_SIZE), "ftruncate failed: %s", strerror(errno)); 903 close(fd); 904 905 pid = getpid(); 906 pidfile = fopen("pidfile", "w"); 907 ATF_REQUIRE_MSG(NULL != pidfile, "fopen: %s", strerror(errno)); 908 fprintf(pidfile, "%d", pid); 909 fclose(pidfile); 910 911 snprintf(pool_name, sizeof(pool_name), POOL_NAME ".%d", pid); 912 snprintf(zvol_name, sizeof(zvol_name), "%s/" ZVOL_NAME, pool_name); 913 snprintf(cmd, sizeof(cmd), "zpool create %s $PWD/" ZVOL_VDEV_PATHNAME, 914 pool_name); 915 ATF_REQUIRE_EQ_MSG(0, system(cmd), 916 "zpool create failed: %s", strerror(errno)); 917 snprintf(cmd, sizeof(cmd), 918 "zfs create -o volblocksize=8192 -o volmode=dev -V " 919 ZVOL_SIZE " %s", zvol_name); 920 ATF_REQUIRE_EQ_MSG(0, system(cmd), 921 "zfs create failed: %s", strerror(errno)); 922 /* 923 * XXX Due to bug 251828, we need an extra "zfs set" here 924 * https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251828 925 */ 926 snprintf(cmd, sizeof(cmd), "zfs set volmode=dev %s", zvol_name); 927 ATF_REQUIRE_EQ_MSG(0, system(cmd), 928 "zfs set failed: %s", strerror(errno)); 929 930 snprintf(devname, sizeof(devname), "/dev/zvol/%s", zvol_name); 931 do { 932 fd = open(devname, O_RDWR); 933 } while (fd == -1 && errno == EINTR) ; 934 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 935 return (fd); 936 } 937 938 static void 939 aio_zvol_cleanup(void) 940 { 941 FILE *pidfile; 942 pid_t testpid; 943 char cmd[160]; 944 945 pidfile = fopen("pidfile", "r"); 946 ATF_REQUIRE_MSG(NULL != pidfile, "fopen: %s", strerror(errno)); 947 ATF_REQUIRE_EQ(1, fscanf(pidfile, "%d", &testpid)); 948 fclose(pidfile); 949 950 snprintf(cmd, sizeof(cmd), "zpool destroy " POOL_NAME ".%d", testpid); 951 system(cmd); 952 } 953 954 955 ATF_TC_WITHOUT_HEAD(aio_large_read_test); 956 ATF_TC_BODY(aio_large_read_test, tc) 957 { 958 struct aiocb cb, *cbp; 959 ssize_t nread; 960 size_t len; 961 int fd; 962 #ifdef __LP64__ 963 int clamped; 964 #endif 965 966 ATF_REQUIRE_KERNEL_MODULE("aio"); 967 ATF_REQUIRE_UNSAFE_AIO(); 968 969 #ifdef __LP64__ 970 len = sizeof(clamped); 971 if (sysctlbyname("debug.iosize_max_clamp", &clamped, &len, NULL, 0) == 972 -1) 973 atf_libc_error(errno, "Failed to read debug.iosize_max_clamp"); 974 #endif 975 976 /* Determine the maximum supported read(2) size. */ 977 len = SSIZE_MAX; 978 #ifdef __LP64__ 979 if (clamped) 980 len = INT_MAX; 981 #endif 982 983 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 984 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 985 986 unlink(FILE_PATHNAME); 987 988 memset(&cb, 0, sizeof(cb)); 989 cb.aio_nbytes = len; 990 cb.aio_fildes = fd; 991 cb.aio_buf = NULL; 992 if (aio_read(&cb) == -1) 993 atf_tc_fail("aio_read() of maximum read size failed: %s", 994 strerror(errno)); 995 996 nread = aio_waitcomplete(&cbp, NULL); 997 if (nread == -1) 998 atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno)); 999 if (nread != 0) 1000 atf_tc_fail("aio_read() from empty file returned data: %zd", 1001 nread); 1002 1003 memset(&cb, 0, sizeof(cb)); 1004 cb.aio_nbytes = len + 1; 1005 cb.aio_fildes = fd; 1006 cb.aio_buf = NULL; 1007 if (aio_read(&cb) == -1) { 1008 if (errno == EINVAL) 1009 goto finished; 1010 atf_tc_fail("aio_read() of too large read size failed: %s", 1011 strerror(errno)); 1012 } 1013 1014 nread = aio_waitcomplete(&cbp, NULL); 1015 if (nread == -1) { 1016 if (errno == EINVAL) 1017 goto finished; 1018 atf_tc_fail("aio_waitcomplete() failed: %s", strerror(errno)); 1019 } 1020 atf_tc_fail("aio_read() of too large read size returned: %zd", nread); 1021 1022 finished: 1023 close(fd); 1024 } 1025 1026 /* 1027 * This tests for a bug where arriving socket data can wakeup multiple 1028 * AIO read requests resulting in an uncancellable request. 1029 */ 1030 ATF_TC_WITHOUT_HEAD(aio_socket_two_reads); 1031 ATF_TC_BODY(aio_socket_two_reads, tc) 1032 { 1033 struct ioreq { 1034 struct aiocb iocb; 1035 char buffer[1024]; 1036 } ioreq[2]; 1037 struct aiocb *iocb; 1038 unsigned i; 1039 int s[2]; 1040 char c; 1041 1042 ATF_REQUIRE_KERNEL_MODULE("aio"); 1043 #if __FreeBSD_version < 1100101 1044 aft_tc_skip("kernel version %d is too old (%d required)", 1045 __FreeBSD_version, 1100101); 1046 #endif 1047 1048 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1049 1050 /* Queue two read requests. */ 1051 memset(&ioreq, 0, sizeof(ioreq)); 1052 for (i = 0; i < nitems(ioreq); i++) { 1053 ioreq[i].iocb.aio_nbytes = sizeof(ioreq[i].buffer); 1054 ioreq[i].iocb.aio_fildes = s[0]; 1055 ioreq[i].iocb.aio_buf = ioreq[i].buffer; 1056 ATF_REQUIRE(aio_read(&ioreq[i].iocb) == 0); 1057 } 1058 1059 /* Send a single byte. This should complete one request. */ 1060 c = 0xc3; 1061 ATF_REQUIRE(write(s[1], &c, sizeof(c)) == 1); 1062 1063 ATF_REQUIRE(aio_waitcomplete(&iocb, NULL) == 1); 1064 1065 /* Determine which request completed and verify the data was read. */ 1066 if (iocb == &ioreq[0].iocb) 1067 i = 0; 1068 else 1069 i = 1; 1070 ATF_REQUIRE(ioreq[i].buffer[0] == c); 1071 1072 i ^= 1; 1073 1074 /* 1075 * Try to cancel the other request. On broken systems this 1076 * will fail and the process will hang on exit. 1077 */ 1078 ATF_REQUIRE(aio_error(&ioreq[i].iocb) == EINPROGRESS); 1079 ATF_REQUIRE(aio_cancel(s[0], &ioreq[i].iocb) == AIO_CANCELED); 1080 1081 close(s[1]); 1082 close(s[0]); 1083 } 1084 1085 static void 1086 aio_socket_blocking_short_write_test(bool vectored) 1087 { 1088 struct aiocb iocb, *iocbp; 1089 struct iovec iov[2]; 1090 char *buffer[2]; 1091 ssize_t done, r; 1092 int buffer_size, sb_size; 1093 socklen_t len; 1094 int s[2]; 1095 1096 ATF_REQUIRE_KERNEL_MODULE("aio"); 1097 1098 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1099 1100 len = sizeof(sb_size); 1101 ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) != 1102 -1); 1103 ATF_REQUIRE(len == sizeof(sb_size)); 1104 buffer_size = sb_size; 1105 1106 ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) != 1107 -1); 1108 ATF_REQUIRE(len == sizeof(sb_size)); 1109 if (sb_size > buffer_size) 1110 buffer_size = sb_size; 1111 1112 /* 1113 * Use twice the size of the MAX(receive buffer, send buffer) 1114 * to ensure that the write is split up into multiple writes 1115 * internally. 1116 */ 1117 buffer_size *= 2; 1118 1119 buffer[0] = malloc(buffer_size); 1120 ATF_REQUIRE(buffer[0] != NULL); 1121 buffer[1] = malloc(buffer_size); 1122 ATF_REQUIRE(buffer[1] != NULL); 1123 1124 srandomdev(); 1125 aio_fill_buffer(buffer[1], buffer_size, random()); 1126 1127 memset(&iocb, 0, sizeof(iocb)); 1128 iocb.aio_fildes = s[1]; 1129 if (vectored) { 1130 iov[0].iov_base = buffer[1]; 1131 iov[0].iov_len = buffer_size / 2 + 1; 1132 iov[1].iov_base = buffer[1] + buffer_size / 2 + 1; 1133 iov[1].iov_len = buffer_size / 2 - 1; 1134 iocb.aio_iov = iov; 1135 iocb.aio_iovcnt = 2; 1136 r = aio_writev(&iocb); 1137 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1138 } else { 1139 iocb.aio_buf = buffer[1]; 1140 iocb.aio_nbytes = buffer_size; 1141 r = aio_write(&iocb); 1142 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1143 } 1144 1145 done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL); 1146 ATF_REQUIRE(done == buffer_size); 1147 1148 done = aio_waitcomplete(&iocbp, NULL); 1149 ATF_REQUIRE(iocbp == &iocb); 1150 ATF_REQUIRE(done == buffer_size); 1151 1152 ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0); 1153 1154 close(s[1]); 1155 close(s[0]); 1156 } 1157 1158 /* 1159 * This test ensures that aio_write() on a blocking socket of a "large" 1160 * buffer does not return a short completion. 1161 */ 1162 ATF_TC_WITHOUT_HEAD(aio_socket_blocking_short_write); 1163 ATF_TC_BODY(aio_socket_blocking_short_write, tc) 1164 { 1165 aio_socket_blocking_short_write_test(false); 1166 } 1167 1168 /* 1169 * Like aio_socket_blocking_short_write, but also tests that partially 1170 * completed vectored sends can be retried correctly. 1171 */ 1172 ATF_TC_WITHOUT_HEAD(aio_socket_blocking_short_write_vectored); 1173 ATF_TC_BODY(aio_socket_blocking_short_write_vectored, tc) 1174 { 1175 aio_socket_blocking_short_write_test(true); 1176 } 1177 1178 /* 1179 * This test verifies that cancelling a partially completed socket write 1180 * returns a short write rather than ECANCELED. 1181 */ 1182 ATF_TC_WITHOUT_HEAD(aio_socket_short_write_cancel); 1183 ATF_TC_BODY(aio_socket_short_write_cancel, tc) 1184 { 1185 struct aiocb iocb, *iocbp; 1186 char *buffer[2]; 1187 ssize_t done; 1188 int buffer_size, sb_size; 1189 socklen_t len; 1190 int s[2]; 1191 1192 ATF_REQUIRE_KERNEL_MODULE("aio"); 1193 1194 ATF_REQUIRE(socketpair(PF_UNIX, SOCK_STREAM, 0, s) != -1); 1195 1196 len = sizeof(sb_size); 1197 ATF_REQUIRE(getsockopt(s[0], SOL_SOCKET, SO_RCVBUF, &sb_size, &len) != 1198 -1); 1199 ATF_REQUIRE(len == sizeof(sb_size)); 1200 buffer_size = sb_size; 1201 1202 ATF_REQUIRE(getsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &sb_size, &len) != 1203 -1); 1204 ATF_REQUIRE(len == sizeof(sb_size)); 1205 if (sb_size > buffer_size) 1206 buffer_size = sb_size; 1207 1208 /* 1209 * Use three times the size of the MAX(receive buffer, send 1210 * buffer) for the write to ensure that the write is split up 1211 * into multiple writes internally. The recv() ensures that 1212 * the write has partially completed, but a remaining size of 1213 * two buffers should ensure that the write has not completed 1214 * fully when it is cancelled. 1215 */ 1216 buffer[0] = malloc(buffer_size); 1217 ATF_REQUIRE(buffer[0] != NULL); 1218 buffer[1] = malloc(buffer_size * 3); 1219 ATF_REQUIRE(buffer[1] != NULL); 1220 1221 srandomdev(); 1222 aio_fill_buffer(buffer[1], buffer_size * 3, random()); 1223 1224 memset(&iocb, 0, sizeof(iocb)); 1225 iocb.aio_fildes = s[1]; 1226 iocb.aio_buf = buffer[1]; 1227 iocb.aio_nbytes = buffer_size * 3; 1228 ATF_REQUIRE(aio_write(&iocb) == 0); 1229 1230 done = recv(s[0], buffer[0], buffer_size, MSG_WAITALL); 1231 ATF_REQUIRE(done == buffer_size); 1232 1233 ATF_REQUIRE(aio_error(&iocb) == EINPROGRESS); 1234 ATF_REQUIRE(aio_cancel(s[1], &iocb) == AIO_NOTCANCELED); 1235 1236 done = aio_waitcomplete(&iocbp, NULL); 1237 ATF_REQUIRE(iocbp == &iocb); 1238 ATF_REQUIRE(done >= buffer_size && done <= buffer_size * 2); 1239 1240 ATF_REQUIRE(memcmp(buffer[0], buffer[1], buffer_size) == 0); 1241 1242 close(s[1]); 1243 close(s[0]); 1244 } 1245 1246 /* 1247 * test aio_fsync's behavior with bad inputs 1248 */ 1249 ATF_TC_WITHOUT_HEAD(aio_fsync_errors); 1250 ATF_TC_BODY(aio_fsync_errors, tc) 1251 { 1252 int fd; 1253 struct aiocb iocb; 1254 1255 ATF_REQUIRE_KERNEL_MODULE("aio"); 1256 ATF_REQUIRE_UNSAFE_AIO(); 1257 1258 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 1259 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1260 unlink(FILE_PATHNAME); 1261 1262 /* aio_fsync should return EINVAL unless op is O_SYNC */ 1263 memset(&iocb, 0, sizeof(iocb)); 1264 iocb.aio_fildes = fd; 1265 ATF_CHECK_EQ(-1, aio_fsync(666, &iocb)); 1266 ATF_CHECK_EQ(EINVAL, errno); 1267 1268 /* aio_fsync should return EBADF if fd is not a valid descriptor */ 1269 memset(&iocb, 0, sizeof(iocb)); 1270 iocb.aio_fildes = 666; 1271 ATF_CHECK_EQ(-1, aio_fsync(O_SYNC, &iocb)); 1272 ATF_CHECK_EQ(EBADF, errno); 1273 1274 /* aio_fsync should return EINVAL if sigev_notify is invalid */ 1275 memset(&iocb, 0, sizeof(iocb)); 1276 iocb.aio_fildes = fd; 1277 iocb.aio_sigevent.sigev_notify = 666; 1278 ATF_CHECK_EQ(-1, aio_fsync(666, &iocb)); 1279 ATF_CHECK_EQ(EINVAL, errno); 1280 } 1281 1282 /* 1283 * This test just performs a basic test of aio_fsync(). 1284 */ 1285 ATF_TC_WITHOUT_HEAD(aio_fsync_test); 1286 ATF_TC_BODY(aio_fsync_test, tc) 1287 { 1288 struct aiocb synccb, *iocbp; 1289 struct { 1290 struct aiocb iocb; 1291 bool done; 1292 char *buffer; 1293 } buffers[16]; 1294 struct stat sb; 1295 ssize_t rval; 1296 unsigned i; 1297 int fd; 1298 1299 ATF_REQUIRE_KERNEL_MODULE("aio"); 1300 ATF_REQUIRE_UNSAFE_AIO(); 1301 1302 fd = open(FILE_PATHNAME, O_RDWR | O_CREAT, 0600); 1303 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1304 unlink(FILE_PATHNAME); 1305 1306 ATF_REQUIRE(fstat(fd, &sb) == 0); 1307 ATF_REQUIRE(sb.st_blksize != 0); 1308 ATF_REQUIRE(ftruncate(fd, sb.st_blksize * nitems(buffers)) == 0); 1309 1310 /* 1311 * Queue several asynchronous write requests. Hopefully this 1312 * forces the aio_fsync() request to be deferred. There is no 1313 * reliable way to guarantee that however. 1314 */ 1315 srandomdev(); 1316 for (i = 0; i < nitems(buffers); i++) { 1317 buffers[i].done = false; 1318 memset(&buffers[i].iocb, 0, sizeof(buffers[i].iocb)); 1319 buffers[i].buffer = malloc(sb.st_blksize); 1320 aio_fill_buffer(buffers[i].buffer, sb.st_blksize, random()); 1321 buffers[i].iocb.aio_fildes = fd; 1322 buffers[i].iocb.aio_buf = buffers[i].buffer; 1323 buffers[i].iocb.aio_nbytes = sb.st_blksize; 1324 buffers[i].iocb.aio_offset = sb.st_blksize * i; 1325 ATF_REQUIRE(aio_write(&buffers[i].iocb) == 0); 1326 } 1327 1328 /* Queue the aio_fsync request. */ 1329 memset(&synccb, 0, sizeof(synccb)); 1330 synccb.aio_fildes = fd; 1331 ATF_REQUIRE(aio_fsync(O_SYNC, &synccb) == 0); 1332 1333 /* Wait for requests to complete. */ 1334 for (;;) { 1335 next: 1336 rval = aio_waitcomplete(&iocbp, NULL); 1337 ATF_REQUIRE(iocbp != NULL); 1338 if (iocbp == &synccb) { 1339 ATF_REQUIRE(rval == 0); 1340 break; 1341 } 1342 1343 for (i = 0; i < nitems(buffers); i++) { 1344 if (iocbp == &buffers[i].iocb) { 1345 ATF_REQUIRE(buffers[i].done == false); 1346 ATF_REQUIRE(rval == sb.st_blksize); 1347 buffers[i].done = true; 1348 goto next; 1349 } 1350 } 1351 1352 ATF_REQUIRE_MSG(false, "unmatched AIO request"); 1353 } 1354 1355 for (i = 0; i < nitems(buffers); i++) 1356 ATF_REQUIRE_MSG(buffers[i].done, 1357 "AIO request %u did not complete", i); 1358 1359 close(fd); 1360 } 1361 1362 /* 1363 * We shouldn't be able to DoS the system by setting iov_len to an insane 1364 * value 1365 */ 1366 ATF_TC_WITHOUT_HEAD(aio_writev_dos_iov_len); 1367 ATF_TC_BODY(aio_writev_dos_iov_len, tc) 1368 { 1369 struct aiocb aio; 1370 const struct aiocb *const iocbs[] = {&aio}; 1371 const char *wbuf = "Hello, world!"; 1372 struct iovec iov[1]; 1373 ssize_t len, r; 1374 int fd; 1375 1376 ATF_REQUIRE_KERNEL_MODULE("aio"); 1377 ATF_REQUIRE_UNSAFE_AIO(); 1378 1379 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1380 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1381 1382 len = strlen(wbuf); 1383 iov[0].iov_base = __DECONST(void*, wbuf); 1384 iov[0].iov_len = 1 << 30; 1385 bzero(&aio, sizeof(aio)); 1386 aio.aio_fildes = fd; 1387 aio.aio_offset = 0; 1388 aio.aio_iov = iov; 1389 aio.aio_iovcnt = 1; 1390 1391 r = aio_writev(&aio); 1392 ATF_CHECK_EQ_MSG(0, r, "aio_writev returned %zd", r); 1393 ATF_REQUIRE_EQ(0, aio_suspend(iocbs, 1, NULL)); 1394 r = aio_return(&aio); 1395 ATF_CHECK_EQ_MSG(-1, r, "aio_return returned %zd", r); 1396 ATF_CHECK_MSG(errno == EFAULT || errno == EINVAL, 1397 "aio_writev: %s", strerror(errno)); 1398 1399 close(fd); 1400 } 1401 1402 /* 1403 * We shouldn't be able to DoS the system by setting aio_iovcnt to an insane 1404 * value 1405 */ 1406 ATF_TC_WITHOUT_HEAD(aio_writev_dos_iovcnt); 1407 ATF_TC_BODY(aio_writev_dos_iovcnt, tc) 1408 { 1409 struct aiocb aio; 1410 const char *wbuf = "Hello, world!"; 1411 struct iovec iov[1]; 1412 ssize_t len; 1413 int fd; 1414 1415 ATF_REQUIRE_KERNEL_MODULE("aio"); 1416 ATF_REQUIRE_UNSAFE_AIO(); 1417 1418 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1419 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1420 1421 len = strlen(wbuf); 1422 iov[0].iov_base = __DECONST(void*, wbuf); 1423 iov[0].iov_len = len; 1424 bzero(&aio, sizeof(aio)); 1425 aio.aio_fildes = fd; 1426 aio.aio_offset = 0; 1427 aio.aio_iov = iov; 1428 aio.aio_iovcnt = 1 << 30; 1429 1430 ATF_REQUIRE_EQ(-1, aio_writev(&aio)); 1431 ATF_CHECK_EQ(EINVAL, errno); 1432 1433 close(fd); 1434 } 1435 1436 ATF_TC_WITH_CLEANUP(aio_writev_efault); 1437 ATF_TC_HEAD(aio_writev_efault, tc) 1438 { 1439 atf_tc_set_md_var(tc, "descr", 1440 "Vectored AIO should gracefully handle invalid addresses"); 1441 atf_tc_set_md_var(tc, "require.user", "root"); 1442 } 1443 ATF_TC_BODY(aio_writev_efault, tc) 1444 { 1445 struct aiocb aio; 1446 ssize_t buflen; 1447 char *buffer; 1448 struct iovec iov[2]; 1449 long seed; 1450 int fd; 1451 1452 ATF_REQUIRE_KERNEL_MODULE("aio"); 1453 ATF_REQUIRE_UNSAFE_AIO(); 1454 1455 fd = aio_md_setup(); 1456 1457 seed = random(); 1458 buflen = 4096; 1459 buffer = malloc(buflen); 1460 aio_fill_buffer(buffer, buflen, seed); 1461 iov[0].iov_base = buffer; 1462 iov[0].iov_len = buflen; 1463 iov[1].iov_base = (void*)-1; /* Invalid! */ 1464 iov[1].iov_len = buflen; 1465 bzero(&aio, sizeof(aio)); 1466 aio.aio_fildes = fd; 1467 aio.aio_offset = 0; 1468 aio.aio_iov = iov; 1469 aio.aio_iovcnt = nitems(iov); 1470 1471 ATF_REQUIRE_EQ(-1, aio_writev(&aio)); 1472 ATF_CHECK_EQ(EFAULT, errno); 1473 1474 close(fd); 1475 } 1476 ATF_TC_CLEANUP(aio_writev_efault, tc) 1477 { 1478 aio_md_cleanup(); 1479 } 1480 1481 ATF_TC_WITHOUT_HEAD(aio_writev_empty_file_poll); 1482 ATF_TC_BODY(aio_writev_empty_file_poll, tc) 1483 { 1484 struct aiocb aio; 1485 int fd; 1486 1487 ATF_REQUIRE_KERNEL_MODULE("aio"); 1488 ATF_REQUIRE_UNSAFE_AIO(); 1489 1490 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1491 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1492 1493 bzero(&aio, sizeof(aio)); 1494 aio.aio_fildes = fd; 1495 aio.aio_offset = 0; 1496 aio.aio_iovcnt = 0; 1497 1498 ATF_REQUIRE_EQ(0, aio_writev(&aio)); 1499 ATF_REQUIRE_EQ(0, suspend(&aio)); 1500 1501 close(fd); 1502 } 1503 1504 ATF_TC_WITHOUT_HEAD(aio_writev_empty_file_signal); 1505 ATF_TC_BODY(aio_writev_empty_file_signal, tc) 1506 { 1507 struct aiocb aio; 1508 int fd; 1509 1510 ATF_REQUIRE_KERNEL_MODULE("aio"); 1511 ATF_REQUIRE_UNSAFE_AIO(); 1512 1513 fd = open("testfile", O_RDWR | O_CREAT, 0600); 1514 ATF_REQUIRE_MSG(fd != -1, "open failed: %s", strerror(errno)); 1515 1516 bzero(&aio, sizeof(aio)); 1517 aio.aio_fildes = fd; 1518 aio.aio_offset = 0; 1519 aio.aio_iovcnt = 0; 1520 aio.aio_sigevent = *setup_signal(); 1521 1522 ATF_REQUIRE_EQ(0, aio_writev(&aio)); 1523 ATF_REQUIRE_EQ(0, poll_signaled(&aio)); 1524 1525 close(fd); 1526 } 1527 1528 // aio_writev and aio_readv should still work even if the iovcnt is greater 1529 // than the number of buffered AIO operations permitted per process. 1530 ATF_TC_WITH_CLEANUP(vectored_big_iovcnt); 1531 ATF_TC_HEAD(vectored_big_iovcnt, tc) 1532 { 1533 atf_tc_set_md_var(tc, "descr", 1534 "Vectored AIO should still work even if the iovcnt is greater than " 1535 "the number of buffered AIO operations permitted by the process"); 1536 atf_tc_set_md_var(tc, "require.user", "root"); 1537 } 1538 ATF_TC_BODY(vectored_big_iovcnt, tc) 1539 { 1540 struct aiocb aio; 1541 struct iovec *iov; 1542 ssize_t len, buflen; 1543 char *buffer; 1544 const char *oid = "vfs.aio.max_buf_aio"; 1545 long seed; 1546 int max_buf_aio; 1547 int fd, i; 1548 ssize_t sysctl_len = sizeof(max_buf_aio); 1549 1550 ATF_REQUIRE_KERNEL_MODULE("aio"); 1551 ATF_REQUIRE_UNSAFE_AIO(); 1552 1553 if (sysctlbyname(oid, &max_buf_aio, &sysctl_len, NULL, 0) == -1) 1554 atf_libc_error(errno, "Failed to read %s", oid); 1555 1556 seed = random(); 1557 buflen = 512 * (max_buf_aio + 1); 1558 buffer = malloc(buflen); 1559 aio_fill_buffer(buffer, buflen, seed); 1560 iov = calloc(max_buf_aio + 1, sizeof(struct iovec)); 1561 1562 fd = aio_md_setup(); 1563 1564 bzero(&aio, sizeof(aio)); 1565 aio.aio_fildes = fd; 1566 aio.aio_offset = 0; 1567 for (i = 0; i < max_buf_aio + 1; i++) { 1568 iov[i].iov_base = &buffer[i * 512]; 1569 iov[i].iov_len = 512; 1570 } 1571 aio.aio_iov = iov; 1572 aio.aio_iovcnt = max_buf_aio + 1; 1573 1574 if (aio_writev(&aio) < 0) 1575 atf_tc_fail("aio_writev failed: %s", strerror(errno)); 1576 1577 len = poll(&aio); 1578 if (len < 0) 1579 atf_tc_fail("aio failed: %s", strerror(errno)); 1580 1581 if (len != buflen) 1582 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 1583 1584 bzero(&aio, sizeof(aio)); 1585 aio.aio_fildes = fd; 1586 aio.aio_offset = 0; 1587 aio.aio_iov = iov; 1588 aio.aio_iovcnt = max_buf_aio + 1; 1589 1590 if (aio_readv(&aio) < 0) 1591 atf_tc_fail("aio_readv failed: %s", strerror(errno)); 1592 1593 len = poll(&aio); 1594 if (len < 0) 1595 atf_tc_fail("aio failed: %s", strerror(errno)); 1596 1597 if (len != buflen) 1598 atf_tc_fail("aio short read (%jd)", (intmax_t)len); 1599 1600 if (aio_test_buffer(buffer, buflen, seed) == 0) 1601 atf_tc_fail("buffer mismatched"); 1602 1603 close(fd); 1604 } 1605 ATF_TC_CLEANUP(vectored_big_iovcnt, tc) 1606 { 1607 aio_md_cleanup(); 1608 } 1609 1610 ATF_TC_WITHOUT_HEAD(vectored_file_poll); 1611 ATF_TC_BODY(vectored_file_poll, tc) 1612 { 1613 aio_file_test(poll, NULL, true); 1614 } 1615 1616 ATF_TC_WITH_CLEANUP(vectored_md_poll); 1617 ATF_TC_HEAD(vectored_md_poll, tc) 1618 { 1619 atf_tc_set_md_var(tc, "require.user", "root"); 1620 } 1621 ATF_TC_BODY(vectored_md_poll, tc) 1622 { 1623 aio_md_test(poll, NULL, true); 1624 } 1625 ATF_TC_CLEANUP(vectored_md_poll, tc) 1626 { 1627 aio_md_cleanup(); 1628 } 1629 1630 ATF_TC_WITHOUT_HEAD(vectored_socket_poll); 1631 ATF_TC_BODY(vectored_socket_poll, tc) 1632 { 1633 aio_unix_socketpair_test(poll, NULL, true); 1634 } 1635 1636 // aio_writev and aio_readv should still work even if the iov contains elements 1637 // that aren't a multiple of the device's sector size, and even if the total 1638 // amount if I/O _is_ a multiple of the device's sector size. 1639 ATF_TC_WITH_CLEANUP(vectored_unaligned); 1640 ATF_TC_HEAD(vectored_unaligned, tc) 1641 { 1642 atf_tc_set_md_var(tc, "descr", 1643 "Vectored AIO should still work even if the iov contains elements " 1644 "that aren't a multiple of the sector size."); 1645 atf_tc_set_md_var(tc, "require.user", "root"); 1646 } 1647 ATF_TC_BODY(vectored_unaligned, tc) 1648 { 1649 struct aio_context ac; 1650 struct aiocb aio; 1651 struct iovec iov[3]; 1652 ssize_t len, total_len; 1653 int fd; 1654 1655 ATF_REQUIRE_KERNEL_MODULE("aio"); 1656 ATF_REQUIRE_UNSAFE_AIO(); 1657 1658 /* 1659 * Use a zvol with volmode=dev, so it will allow .d_write with 1660 * unaligned uio. geom devices use physio, which doesn't allow that. 1661 */ 1662 fd = aio_zvol_setup(); 1663 aio_context_init(&ac, fd, fd, FILE_LEN); 1664 1665 /* Break the buffer into 3 parts: 1666 * * A 4kB part, aligned to 4kB 1667 * * Two other parts that add up to 4kB: 1668 * - 256B 1669 * - 4kB - 256B 1670 */ 1671 iov[0].iov_base = ac.ac_buffer; 1672 iov[0].iov_len = 4096; 1673 iov[1].iov_base = (void*)((uintptr_t)iov[0].iov_base + iov[0].iov_len); 1674 iov[1].iov_len = 256; 1675 iov[2].iov_base = (void*)((uintptr_t)iov[1].iov_base + iov[1].iov_len); 1676 iov[2].iov_len = 4096 - iov[1].iov_len; 1677 total_len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len; 1678 bzero(&aio, sizeof(aio)); 1679 aio.aio_fildes = ac.ac_write_fd; 1680 aio.aio_offset = 0; 1681 aio.aio_iov = iov; 1682 aio.aio_iovcnt = 3; 1683 1684 if (aio_writev(&aio) < 0) 1685 atf_tc_fail("aio_writev failed: %s", strerror(errno)); 1686 1687 len = poll(&aio); 1688 if (len < 0) 1689 atf_tc_fail("aio failed: %s", strerror(errno)); 1690 1691 if (len != total_len) 1692 atf_tc_fail("aio short write (%jd)", (intmax_t)len); 1693 1694 bzero(&aio, sizeof(aio)); 1695 aio.aio_fildes = ac.ac_read_fd; 1696 aio.aio_offset = 0; 1697 aio.aio_iov = iov; 1698 aio.aio_iovcnt = 3; 1699 1700 if (aio_readv(&aio) < 0) 1701 atf_tc_fail("aio_readv failed: %s", strerror(errno)); 1702 len = poll(&aio); 1703 1704 ATF_REQUIRE_MSG(aio_test_buffer(ac.ac_buffer, total_len, 1705 ac.ac_seed) != 0, "aio_test_buffer: internal error"); 1706 1707 close(fd); 1708 } 1709 ATF_TC_CLEANUP(vectored_unaligned, tc) 1710 { 1711 aio_zvol_cleanup(); 1712 } 1713 1714 static void 1715 aio_zvol_test(completion comp, struct sigevent *sev, bool vectored) 1716 { 1717 struct aio_context ac; 1718 int fd; 1719 1720 fd = aio_zvol_setup(); 1721 aio_context_init(&ac, fd, fd, MD_LEN); 1722 if (vectored) { 1723 aio_writev_test(&ac, comp, sev); 1724 aio_readv_test(&ac, comp, sev); 1725 } else { 1726 aio_write_test(&ac, comp, sev); 1727 aio_read_test(&ac, comp, sev); 1728 } 1729 1730 close(fd); 1731 } 1732 1733 /* 1734 * Note that unlike md, the zvol is not a geom device, does not allow unmapped 1735 * buffers, and does not use physio. 1736 */ 1737 ATF_TC_WITH_CLEANUP(vectored_zvol_poll); 1738 ATF_TC_HEAD(vectored_zvol_poll, tc) 1739 { 1740 atf_tc_set_md_var(tc, "require.user", "root"); 1741 } 1742 ATF_TC_BODY(vectored_zvol_poll, tc) 1743 { 1744 aio_zvol_test(poll, NULL, true); 1745 } 1746 ATF_TC_CLEANUP(vectored_zvol_poll, tc) 1747 { 1748 aio_zvol_cleanup(); 1749 } 1750 1751 ATF_TP_ADD_TCS(tp) 1752 { 1753 1754 ATF_TP_ADD_TC(tp, file_poll); 1755 ATF_TP_ADD_TC(tp, file_signal); 1756 ATF_TP_ADD_TC(tp, file_suspend); 1757 ATF_TP_ADD_TC(tp, file_thread); 1758 ATF_TP_ADD_TC(tp, file_waitcomplete); 1759 ATF_TP_ADD_TC(tp, fifo_poll); 1760 ATF_TP_ADD_TC(tp, fifo_signal); 1761 ATF_TP_ADD_TC(tp, fifo_suspend); 1762 ATF_TP_ADD_TC(tp, fifo_thread); 1763 ATF_TP_ADD_TC(tp, fifo_waitcomplete); 1764 ATF_TP_ADD_TC(tp, socket_poll); 1765 ATF_TP_ADD_TC(tp, socket_signal); 1766 ATF_TP_ADD_TC(tp, socket_suspend); 1767 ATF_TP_ADD_TC(tp, socket_thread); 1768 ATF_TP_ADD_TC(tp, socket_waitcomplete); 1769 ATF_TP_ADD_TC(tp, pty_poll); 1770 ATF_TP_ADD_TC(tp, pty_signal); 1771 ATF_TP_ADD_TC(tp, pty_suspend); 1772 ATF_TP_ADD_TC(tp, pty_thread); 1773 ATF_TP_ADD_TC(tp, pty_waitcomplete); 1774 ATF_TP_ADD_TC(tp, pipe_poll); 1775 ATF_TP_ADD_TC(tp, pipe_signal); 1776 ATF_TP_ADD_TC(tp, pipe_suspend); 1777 ATF_TP_ADD_TC(tp, pipe_thread); 1778 ATF_TP_ADD_TC(tp, pipe_waitcomplete); 1779 ATF_TP_ADD_TC(tp, md_poll); 1780 ATF_TP_ADD_TC(tp, md_signal); 1781 ATF_TP_ADD_TC(tp, md_suspend); 1782 ATF_TP_ADD_TC(tp, md_thread); 1783 ATF_TP_ADD_TC(tp, md_waitcomplete); 1784 ATF_TP_ADD_TC(tp, aio_fsync_errors); 1785 ATF_TP_ADD_TC(tp, aio_fsync_test); 1786 ATF_TP_ADD_TC(tp, aio_large_read_test); 1787 ATF_TP_ADD_TC(tp, aio_socket_two_reads); 1788 ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write); 1789 ATF_TP_ADD_TC(tp, aio_socket_blocking_short_write_vectored); 1790 ATF_TP_ADD_TC(tp, aio_socket_short_write_cancel); 1791 ATF_TP_ADD_TC(tp, aio_writev_dos_iov_len); 1792 ATF_TP_ADD_TC(tp, aio_writev_dos_iovcnt); 1793 ATF_TP_ADD_TC(tp, aio_writev_efault); 1794 ATF_TP_ADD_TC(tp, aio_writev_empty_file_poll); 1795 ATF_TP_ADD_TC(tp, aio_writev_empty_file_signal); 1796 ATF_TP_ADD_TC(tp, vectored_big_iovcnt); 1797 ATF_TP_ADD_TC(tp, vectored_file_poll); 1798 ATF_TP_ADD_TC(tp, vectored_md_poll); 1799 ATF_TP_ADD_TC(tp, vectored_zvol_poll); 1800 ATF_TP_ADD_TC(tp, vectored_unaligned); 1801 ATF_TP_ADD_TC(tp, vectored_socket_poll); 1802 1803 return (atf_no_error()); 1804 } 1805