t_vnops.c revision 1.30
1 /* $NetBSD: t_vnops.c,v 1.30 2011/12/12 19:11:22 njoly Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/stat.h> 30 #include <sys/statvfs.h> 31 32 #include <assert.h> 33 #include <atf-c.h> 34 #include <fcntl.h> 35 #include <libgen.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 40 #include <rump/rump_syscalls.h> 41 #include <rump/rump.h> 42 43 #include "../common/h_fsmacros.h" 44 #include "../../h_macros.h" 45 46 #define TESTFILE "afile" 47 48 #define USES_DIRS \ 49 if (FSTYPE_SYSVBFS(tc)) \ 50 atf_tc_skip("directories not supported by file system") 51 52 #define USES_SYMLINKS \ 53 if (FSTYPE_SYSVBFS(tc) || FSTYPE_MSDOS(tc)) \ 54 atf_tc_skip("symlinks not supported by file system") 55 56 static char * 57 md(char *buf, const char *base, const char *tail) 58 { 59 60 sprintf(buf, "%s/%s", base, tail); 61 return buf; 62 } 63 64 static void 65 lookup_simple(const atf_tc_t *tc, const char *mountpath) 66 { 67 char pb[MAXPATHLEN], final[MAXPATHLEN]; 68 struct stat sb1, sb2; 69 70 strcpy(final, mountpath); 71 sprintf(pb, "%s/../%s", mountpath, basename(final)); 72 if (rump_sys_stat(pb, &sb1) == -1) 73 atf_tc_fail_errno("stat 1"); 74 75 sprintf(pb, "%s/./../%s", mountpath, basename(final)); 76 if (rump_sys_stat(pb, &sb2) == -1) 77 atf_tc_fail_errno("stat 2"); 78 79 ATF_REQUIRE(memcmp(&sb1, &sb2, sizeof(sb1)) == 0); 80 } 81 82 static void 83 lookup_complex(const atf_tc_t *tc, const char *mountpath) 84 { 85 char pb[MAXPATHLEN]; 86 struct stat sb1, sb2; 87 88 USES_DIRS; 89 90 sprintf(pb, "%s/dir", mountpath); 91 if (rump_sys_mkdir(pb, 0777) == -1) 92 atf_tc_fail_errno("mkdir"); 93 if (rump_sys_stat(pb, &sb1) == -1) 94 atf_tc_fail_errno("stat 1"); 95 96 sprintf(pb, "%s/./dir/../././dir/.", mountpath); 97 if (rump_sys_stat(pb, &sb2) == -1) 98 atf_tc_fail_errno("stat 2"); 99 100 ATF_REQUIRE(memcmp(&sb1, &sb2, sizeof(sb1)) == 0); 101 } 102 103 static void 104 dir_simple(const atf_tc_t *tc, const char *mountpath) 105 { 106 char pb[MAXPATHLEN]; 107 struct stat sb; 108 109 USES_DIRS; 110 111 /* check we can create directories */ 112 sprintf(pb, "%s/dir", mountpath); 113 if (rump_sys_mkdir(pb, 0777) == -1) 114 atf_tc_fail_errno("mkdir"); 115 if (rump_sys_stat(pb, &sb) == -1) 116 atf_tc_fail_errno("stat new directory"); 117 118 /* check we can remove then and that it makes them unreachable */ 119 if (rump_sys_rmdir(pb) == -1) 120 atf_tc_fail_errno("rmdir"); 121 if (rump_sys_stat(pb, &sb) != -1 || errno != ENOENT) 122 atf_tc_fail("ENOENT expected from stat"); 123 } 124 125 static void 126 dir_notempty(const atf_tc_t *tc, const char *mountpath) 127 { 128 char pb[MAXPATHLEN], pb2[MAXPATHLEN]; 129 int fd, rv; 130 131 USES_DIRS; 132 133 /* check we can create directories */ 134 sprintf(pb, "%s/dir", mountpath); 135 if (rump_sys_mkdir(pb, 0777) == -1) 136 atf_tc_fail_errno("mkdir"); 137 138 sprintf(pb2, "%s/dir/file", mountpath); 139 fd = rump_sys_open(pb2, O_RDWR | O_CREAT, 0777); 140 if (fd == -1) 141 atf_tc_fail_errno("create file"); 142 rump_sys_close(fd); 143 144 rv = rump_sys_rmdir(pb); 145 if (rv != -1 || errno != ENOTEMPTY) 146 atf_tc_fail("non-empty directory removed succesfully"); 147 148 if (rump_sys_unlink(pb2) == -1) 149 atf_tc_fail_errno("cannot remove dir/file"); 150 151 if (rump_sys_rmdir(pb) == -1) 152 atf_tc_fail_errno("remove directory"); 153 } 154 155 static void 156 dir_rmdirdotdot(const atf_tc_t *tc, const char *mp) 157 { 158 char pb[MAXPATHLEN]; 159 int xerrno; 160 161 USES_DIRS; 162 163 FSTEST_ENTER(); 164 RL(rump_sys_mkdir("test", 0777)); 165 RL(rump_sys_chdir("test")); 166 167 RL(rump_sys_mkdir("subtest", 0777)); 168 RL(rump_sys_chdir("subtest")); 169 170 md(pb, mp, "test/subtest"); 171 RL(rump_sys_rmdir(pb)); 172 md(pb, mp, "test"); 173 RL(rump_sys_rmdir(pb)); 174 175 if (FSTYPE_NFS(tc)) 176 xerrno = ESTALE; 177 else 178 xerrno = ENOENT; 179 /* 180 if (FSTYPE_TMPFS(tc)) 181 atf_tc_expect_signal(-1, "PR kern/44657"); 182 */ 183 ATF_REQUIRE_ERRNO(xerrno, rump_sys_chdir("..") == -1); 184 FSTEST_EXIT(); 185 } 186 187 static void 188 checkfile(const char *path, struct stat *refp) 189 { 190 char buf[MAXPATHLEN]; 191 struct stat sb; 192 static int n = 1; 193 194 md(buf, path, "file"); 195 if (rump_sys_stat(buf, &sb) == -1) 196 atf_tc_fail_errno("cannot stat file %d (%s)", n, buf); 197 if (memcmp(&sb, refp, sizeof(sb)) != 0) 198 atf_tc_fail("stat mismatch %d", n); 199 n++; 200 } 201 202 static void 203 rename_dir(const atf_tc_t *tc, const char *mp) 204 { 205 char pb1[MAXPATHLEN], pb2[MAXPATHLEN], pb3[MAXPATHLEN]; 206 struct stat ref, sb; 207 208 if (FSTYPE_RUMPFS(tc)) 209 atf_tc_skip("rename not supported by file system"); 210 211 USES_DIRS; 212 213 md(pb1, mp, "dir1"); 214 if (rump_sys_mkdir(pb1, 0777) == -1) 215 atf_tc_fail_errno("mkdir 1"); 216 217 md(pb2, mp, "dir2"); 218 if (rump_sys_mkdir(pb2, 0777) == -1) 219 atf_tc_fail_errno("mkdir 2"); 220 md(pb2, mp, "dir2/subdir"); 221 if (rump_sys_mkdir(pb2, 0777) == -1) 222 atf_tc_fail_errno("mkdir 3"); 223 224 md(pb3, mp, "dir1/file"); 225 if (rump_sys_mknod(pb3, S_IFREG | 0777, -1) == -1) 226 atf_tc_fail_errno("create file"); 227 if (rump_sys_stat(pb3, &ref) == -1) 228 atf_tc_fail_errno("stat of file"); 229 230 /* 231 * First try ops which should succeed. 232 */ 233 234 /* rename within directory */ 235 md(pb3, mp, "dir3"); 236 if (rump_sys_rename(pb1, pb3) == -1) 237 atf_tc_fail_errno("rename 1"); 238 checkfile(pb3, &ref); 239 240 /* rename directory onto itself (two ways, should fail) */ 241 md(pb1, mp, "dir3/."); 242 if (rump_sys_rename(pb1, pb3) != -1 || errno != EINVAL) 243 atf_tc_fail_errno("rename 2"); 244 if (rump_sys_rename(pb3, pb1) != -1 || errno != EISDIR) 245 atf_tc_fail_errno("rename 3"); 246 247 checkfile(pb3, &ref); 248 249 /* rename father of directory into directory */ 250 md(pb1, mp, "dir2/dir"); 251 md(pb2, mp, "dir2"); 252 if (rump_sys_rename(pb2, pb1) != -1 || errno != EINVAL) 253 atf_tc_fail_errno("rename 4"); 254 255 /* same for grandfather */ 256 md(pb1, mp, "dir2/subdir/dir2"); 257 if (rump_sys_rename(pb2, pb1) != -1 || errno != EINVAL) 258 atf_tc_fail("rename 5"); 259 260 checkfile(pb3, &ref); 261 262 /* rename directory over a non-empty directory */ 263 if (rump_sys_rename(pb2, pb3) != -1 || errno != ENOTEMPTY) 264 atf_tc_fail("rename 6"); 265 266 /* cross-directory rename */ 267 md(pb1, mp, "dir3"); 268 md(pb2, mp, "dir2/somedir"); 269 if (rump_sys_rename(pb1, pb2) == -1) 270 atf_tc_fail_errno("rename 7"); 271 checkfile(pb2, &ref); 272 273 /* move to parent directory */ 274 md(pb1, mp, "dir2/somedir/../../dir3"); 275 if (rump_sys_rename(pb2, pb1) == -1) 276 atf_tc_fail_errno("rename 8"); 277 md(pb1, mp, "dir2/../dir3"); 278 checkfile(pb1, &ref); 279 280 /* atomic cross-directory rename */ 281 md(pb3, mp, "dir2/subdir"); 282 if (rump_sys_rename(pb1, pb3) == -1) 283 atf_tc_fail_errno("rename 9"); 284 checkfile(pb3, &ref); 285 286 /* rename directory over an empty directory */ 287 md(pb1, mp, "parent"); 288 md(pb2, mp, "parent/dir1"); 289 md(pb3, mp, "parent/dir2"); 290 RL(rump_sys_mkdir(pb1, 0777)); 291 RL(rump_sys_mkdir(pb2, 0777)); 292 RL(rump_sys_mkdir(pb3, 0777)); 293 RL(rump_sys_rename(pb2, pb3)); 294 295 RL(rump_sys_stat(pb1, &sb)); 296 if (! FSTYPE_MSDOS(tc)) 297 ATF_CHECK_EQ(sb.st_nlink, 3); 298 RL(rump_sys_rmdir(pb3)); 299 /* 300 if (FSTYPE_TMPFS(tc)) 301 atf_tc_expect_signal(-1, "PR kern/44288"); 302 */ 303 RL(rump_sys_rmdir(pb1)); 304 } 305 306 static void 307 rename_dotdot(const atf_tc_t *tc, const char *mp) 308 { 309 310 if (FSTYPE_RUMPFS(tc)) 311 atf_tc_skip("rename not supported by file system"); 312 313 USES_DIRS; 314 315 if (rump_sys_chdir(mp) == -1) 316 atf_tc_fail_errno("chdir mountpoint"); 317 318 if (rump_sys_mkdir("dir1", 0777) == -1) 319 atf_tc_fail_errno("mkdir 1"); 320 if (rump_sys_mkdir("dir2", 0777) == -1) 321 atf_tc_fail_errno("mkdir 2"); 322 323 if (rump_sys_rename("dir1", "dir1/..") != -1 || errno != EINVAL) 324 atf_tc_fail_errno("self-dotdot to"); 325 326 if (rump_sys_rename("dir1/..", "sometarget") != -1 || errno != EINVAL) 327 atf_tc_fail_errno("self-dotdot from"); 328 atf_tc_expect_pass(); 329 330 /* 331 if (FSTYPE_TMPFS(tc)) { 332 atf_tc_expect_fail("PR kern/43617"); 333 } 334 */ 335 if (rump_sys_rename("dir1", "dir2/..") != -1 || errno != EINVAL) 336 atf_tc_fail("other-dotdot"); 337 338 rump_sys_chdir("/"); 339 } 340 341 static void 342 rename_reg_nodir(const atf_tc_t *tc, const char *mp) 343 { 344 bool haslinks; 345 struct stat sb; 346 ino_t f1ino, f2ino; 347 348 if (FSTYPE_RUMPFS(tc)) 349 atf_tc_skip("rename not supported by file system"); 350 351 if (rump_sys_chdir(mp) == -1) 352 atf_tc_fail_errno("chdir mountpoint"); 353 354 if (FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc)) 355 haslinks = false; 356 else 357 haslinks = true; 358 359 if (rump_sys_mknod("file1", S_IFREG | 0777, -1) == -1) 360 atf_tc_fail_errno("create file"); 361 if (rump_sys_mknod("file2", S_IFREG | 0777, -1) == -1) 362 atf_tc_fail_errno("create file"); 363 364 if (rump_sys_stat("file1", &sb) == -1) 365 atf_tc_fail_errno("stat"); 366 f1ino = sb.st_ino; 367 368 if (haslinks) { 369 if (rump_sys_link("file1", "file_link") == -1) 370 atf_tc_fail_errno("link"); 371 if (rump_sys_stat("file_link", &sb) == -1) 372 atf_tc_fail_errno("stat"); 373 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 374 ATF_REQUIRE_EQ(sb.st_nlink, 2); 375 } 376 377 if (rump_sys_stat("file2", &sb) == -1) 378 atf_tc_fail_errno("stat"); 379 f2ino = sb.st_ino; 380 381 if (rump_sys_rename("file1", "file3") == -1) 382 atf_tc_fail_errno("rename 1"); 383 if (rump_sys_stat("file3", &sb) == -1) 384 atf_tc_fail_errno("stat 1"); 385 if (haslinks) { 386 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 387 } 388 if (rump_sys_stat("file1", &sb) != -1 || errno != ENOENT) 389 atf_tc_fail_errno("source 1"); 390 391 if (rump_sys_rename("file3", "file2") == -1) 392 atf_tc_fail_errno("rename 2"); 393 if (rump_sys_stat("file2", &sb) == -1) 394 atf_tc_fail_errno("stat 2"); 395 if (haslinks) { 396 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 397 } 398 399 if (rump_sys_stat("file3", &sb) != -1 || errno != ENOENT) 400 atf_tc_fail_errno("source 2"); 401 402 if (haslinks) { 403 if (rump_sys_rename("file2", "file_link") == -1) 404 atf_tc_fail_errno("rename hardlink"); 405 if (rump_sys_stat("file2", &sb) != -1 || errno != ENOENT) 406 atf_tc_fail_errno("source 3"); 407 if (rump_sys_stat("file_link", &sb) == -1) 408 atf_tc_fail_errno("stat 2"); 409 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 410 ATF_REQUIRE_EQ(sb.st_nlink, 1); 411 } 412 413 rump_sys_chdir("/"); 414 } 415 416 static void 417 create_nametoolong(const atf_tc_t *tc, const char *mp) 418 { 419 char *name; 420 int fd; 421 long val; 422 size_t len; 423 424 if (rump_sys_chdir(mp) == -1) 425 atf_tc_fail_errno("chdir mountpoint"); 426 427 val = rump_sys_pathconf(".", _PC_NAME_MAX); 428 if (val == -1) 429 atf_tc_fail_errno("pathconf"); 430 431 len = val + 1; 432 name = malloc(len+1); 433 if (name == NULL) 434 atf_tc_fail_errno("malloc"); 435 436 memset(name, 'a', len); 437 *(name+len) = '\0'; 438 439 val = rump_sys_pathconf(".", _PC_NO_TRUNC); 440 if (val == -1) 441 atf_tc_fail_errno("pathconf"); 442 443 fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666); 444 if (val != 0 && (fd != -1 || errno != ENAMETOOLONG)) 445 atf_tc_fail_errno("open"); 446 447 if (val == 0 && rump_sys_close(fd) == -1) 448 atf_tc_fail_errno("close"); 449 if (val == 0 && rump_sys_unlink(name) == -1) 450 atf_tc_fail_errno("unlink"); 451 452 free(name); 453 454 rump_sys_chdir("/"); 455 } 456 457 static void 458 create_exist(const atf_tc_t *tc, const char *mp) 459 { 460 const char *name = "hoge"; 461 int fd; 462 463 RL(rump_sys_chdir(mp)); 464 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT|O_EXCL, 0666)); 465 RL(rump_sys_close(fd)); 466 RL(rump_sys_unlink(name)); 467 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)); 468 RL(rump_sys_close(fd)); 469 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)); 470 RL(rump_sys_close(fd)); 471 ATF_REQUIRE_ERRNO(EEXIST, 472 (fd = rump_sys_open(name, O_RDWR|O_CREAT|O_EXCL, 0666))); 473 RL(rump_sys_unlink(name)); 474 RL(rump_sys_chdir("/")); 475 } 476 477 static void 478 rename_nametoolong(const atf_tc_t *tc, const char *mp) 479 { 480 char *name; 481 int res, fd; 482 long val; 483 size_t len; 484 485 if (FSTYPE_RUMPFS(tc)) 486 atf_tc_skip("rename not supported by file system"); 487 488 if (rump_sys_chdir(mp) == -1) 489 atf_tc_fail_errno("chdir mountpoint"); 490 491 val = rump_sys_pathconf(".", _PC_NAME_MAX); 492 if (val == -1) 493 atf_tc_fail_errno("pathconf"); 494 495 len = val + 1; 496 name = malloc(len+1); 497 if (name == NULL) 498 atf_tc_fail_errno("malloc"); 499 500 memset(name, 'a', len); 501 *(name+len) = '\0'; 502 503 fd = rump_sys_open("dummy", O_RDWR|O_CREAT, 0666); 504 if (fd == -1) 505 atf_tc_fail_errno("open"); 506 if (rump_sys_close(fd) == -1) 507 atf_tc_fail_errno("close"); 508 509 val = rump_sys_pathconf(".", _PC_NO_TRUNC); 510 if (val == -1) 511 atf_tc_fail_errno("pathconf"); 512 513 res = rump_sys_rename("dummy", name); 514 if (val != 0 && (res != -1 || errno != ENAMETOOLONG)) 515 atf_tc_fail_errno("rename"); 516 517 if (val == 0 && rump_sys_unlink(name) == -1) 518 atf_tc_fail_errno("unlink"); 519 520 free(name); 521 522 rump_sys_chdir("/"); 523 } 524 525 static void 526 symlink_zerolen(const atf_tc_t *tc, const char *mp) 527 { 528 529 USES_SYMLINKS; 530 531 RL(rump_sys_chdir(mp)); 532 533 RL(rump_sys_symlink("", "afile")); 534 RL(rump_sys_chdir("/")); 535 } 536 537 static void 538 symlink_root(const atf_tc_t *tc, const char *mp) 539 { 540 541 USES_SYMLINKS; 542 543 RL(rump_sys_chdir(mp)); 544 RL(rump_sys_symlink("/", "foo")); 545 RL(rump_sys_chdir("foo")); 546 } 547 548 static void 549 attrs(const atf_tc_t *tc, const char *mp) 550 { 551 struct stat sb, sb2; 552 struct timeval tv[2]; 553 int fd; 554 555 FSTEST_ENTER(); 556 RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755)); 557 RL(rump_sys_close(fd)); 558 RL(rump_sys_stat(TESTFILE, &sb)); 559 if (!(FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc))) { 560 RL(rump_sys_chown(TESTFILE, 1, 2)); 561 sb.st_uid = 1; 562 sb.st_gid = 2; 563 RL(rump_sys_chmod(TESTFILE, 0123)); 564 sb.st_mode = (sb.st_mode & ~ACCESSPERMS) | 0123; 565 } 566 567 tv[0].tv_sec = 1000000000; /* need something >1980 for msdosfs */ 568 tv[0].tv_usec = 1; 569 tv[1].tv_sec = 1000000002; /* need even seconds for msdosfs */ 570 tv[1].tv_usec = 3; 571 RL(rump_sys_utimes(TESTFILE, tv)); 572 RL(rump_sys_utimes(TESTFILE, tv)); /* XXX: utimes & birthtime */ 573 sb.st_atimespec.tv_sec = 1000000000; 574 sb.st_atimespec.tv_nsec = 1000; 575 sb.st_mtimespec.tv_sec = 1000000002; 576 sb.st_mtimespec.tv_nsec = 3000; 577 578 RL(rump_sys_stat(TESTFILE, &sb2)); 579 #define CHECK(a) ATF_REQUIRE_EQ(sb.a, sb2.a) 580 if (!(FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc))) { 581 CHECK(st_uid); 582 CHECK(st_gid); 583 CHECK(st_mode); 584 } 585 if (!FSTYPE_MSDOS(tc)) { 586 /* msdosfs has only access date, not time */ 587 CHECK(st_atimespec.tv_sec); 588 } 589 CHECK(st_mtimespec.tv_sec); 590 if (!(FSTYPE_EXT2FS(tc) || FSTYPE_MSDOS(tc) || 591 FSTYPE_SYSVBFS(tc) || FSTYPE_V7FS(tc))) { 592 CHECK(st_atimespec.tv_nsec); 593 CHECK(st_mtimespec.tv_nsec); 594 } 595 #undef CHECK 596 597 FSTEST_EXIT(); 598 } 599 600 static void 601 fcntl_lock(const atf_tc_t *tc, const char *mp) 602 { 603 int fd, fd2; 604 struct flock l; 605 struct lwp *lwp1, *lwp2; 606 607 FSTEST_ENTER(); 608 l.l_pid = 0; 609 l.l_start = l.l_len = 1024; 610 l.l_type = F_RDLCK | F_WRLCK; 611 l.l_whence = SEEK_END; 612 613 lwp1 = rump_pub_lwproc_curlwp(); 614 RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755)); 615 RL(rump_sys_ftruncate(fd, 8192)); 616 617 /* PR kern/43321 */ 618 RL(rump_sys_fcntl(fd, F_SETLK, &l)); 619 620 /* Next, we fork and try to lock the same area */ 621 RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG)); 622 lwp2 = rump_pub_lwproc_curlwp(); 623 RL(fd2 = rump_sys_open(TESTFILE, O_RDWR, 0)); 624 ATF_REQUIRE_ERRNO(EAGAIN, rump_sys_fcntl(fd2, F_SETLK, &l)); 625 626 /* Switch back and unlock... */ 627 rump_pub_lwproc_switch(lwp1); 628 l.l_type = F_UNLCK; 629 RL(rump_sys_fcntl(fd, F_SETLK, &l)); 630 631 /* ... and try to lock again */ 632 rump_pub_lwproc_switch(lwp2); 633 l.l_type = F_RDLCK | F_WRLCK; 634 RL(rump_sys_fcntl(fd2, F_SETLK, &l)); 635 636 RL(rump_sys_close(fd2)); 637 rump_pub_lwproc_releaselwp(); 638 639 RL(rump_sys_close(fd)); 640 641 FSTEST_EXIT(); 642 } 643 644 static int 645 flock_compare(const void *p, const void *q) 646 { 647 int a = ((const struct flock *)p)->l_start; 648 int b = ((const struct flock *)q)->l_start; 649 return a < b ? -1 : (a > b ? 1 : 0); 650 } 651 652 /* 653 * Find all locks set by fcntl_getlock_pids test 654 * using GETLK for a range [start, start+end], and, 655 * if there is a blocking lock, recursively find 656 * all locks to the left (toward the beginning of 657 * a file) and to the right of the lock. 658 * The function also understands "until end of file" 659 * convention when len==0. 660 */ 661 static unsigned int 662 fcntl_getlocks(int fildes, off_t start, off_t len, 663 struct flock *lock, struct flock *end) 664 { 665 unsigned int rv = 0; 666 const struct flock l = { start, len, 0, F_RDLCK, SEEK_SET }; 667 668 if (lock == end) 669 return rv; 670 671 RL(rump_sys_fcntl(fildes, F_GETLK, &l)); 672 673 if (l.l_type == F_UNLCK) 674 return rv; 675 676 *lock++ = l; 677 rv += 1; 678 679 ATF_REQUIRE(l.l_whence == SEEK_SET); 680 681 if (l.l_start > start) { 682 unsigned int n = 683 fcntl_getlocks(fildes, start, l.l_start - start, lock, end); 684 rv += n; 685 lock += n; 686 if (lock == end) 687 return rv; 688 } 689 690 if (l.l_len == 0) /* does l spans until the end? */ 691 return rv; 692 693 if (len == 0) /* are we looking for locks until the end? */ { 694 rv += fcntl_getlocks(fildes, l.l_start + l.l_len, len, lock, end); 695 } else if (l.l_start + l.l_len < start + len) { 696 len -= l.l_start + l.l_len - start; 697 rv += fcntl_getlocks(fildes, l.l_start + l.l_len, len, lock, end); 698 } 699 700 return rv; 701 } 702 703 static void 704 fcntl_getlock_pids(const atf_tc_t *tc, const char *mp) 705 { 706 /* test non-overlaping ranges */ 707 struct flock expect[4]; 708 const struct flock lock[4] = { 709 { 0, 2, 0, F_WRLCK, SEEK_SET }, 710 { 2, 1, 0, F_WRLCK, SEEK_SET }, 711 { 7, 5, 0, F_WRLCK, SEEK_SET }, 712 { 4, 3, 0, F_WRLCK, SEEK_SET }, 713 }; 714 715 /* Add extra element to make sure recursion does't stop at array end */ 716 struct flock result[5]; 717 718 /* Add 5th process */ 719 int fd[5]; 720 pid_t pid[5]; 721 struct lwp *lwp[5]; 722 723 unsigned int i, j; 724 const off_t sz = 8192; 725 int omode = 0755; 726 int oflags = O_RDWR | O_CREAT; 727 728 memcpy(expect, lock, sizeof(lock)); 729 730 FSTEST_ENTER(); 731 732 /* 733 * First, we create 4 processes and let each lock a range of the 734 * file. Note that the third and fourth processes lock in 735 * "reverse" order, i.e. the greater pid locks a range before 736 * the lesser pid. 737 * Then, we create 5th process which doesn't lock anything. 738 */ 739 for (i = 0; i < __arraycount(lwp); i++) { 740 RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG)); 741 742 lwp[i] = rump_pub_lwproc_curlwp(); 743 pid[i] = rump_sys_getpid(); 744 745 RL(fd[i] = rump_sys_open(TESTFILE, oflags, omode)); 746 oflags = O_RDWR; 747 omode = 0; 748 749 RL(rump_sys_ftruncate(fd[i], sz)); 750 751 if (i < __arraycount(lock)) { 752 RL(rump_sys_fcntl(fd[i], F_SETLK, &lock[i])); 753 expect[i].l_pid = pid[i]; 754 } 755 } 756 757 qsort(expect, __arraycount(expect), sizeof(expect[0]), &flock_compare); 758 759 /* 760 * In the context of each process, recursively find all locks 761 * that would block the current process. Processes 1-4 don't 762 * see their own lock, we insert it to simplify checks. 763 * Process 5 sees all 4 locks. 764 */ 765 for (i = 0; i < __arraycount(lwp); i++) { 766 unsigned int nlocks; 767 768 rump_pub_lwproc_switch(lwp[i]); 769 770 memset(result, 0, sizeof(result)); 771 nlocks = fcntl_getlocks(fd[i], 0, sz, 772 result, result + __arraycount(result)); 773 774 if (i < __arraycount(lock)) { 775 ATF_REQUIRE(nlocks < __arraycount(result)); 776 result[nlocks] = lock[i]; 777 result[nlocks].l_pid = pid[i]; 778 nlocks++; 779 } 780 781 ATF_CHECK_EQ(nlocks, __arraycount(expect)); 782 783 qsort(result, nlocks, sizeof(result[0]), &flock_compare); 784 785 for (j = 0; j < nlocks; j++) { 786 ATF_CHECK_EQ(result[j].l_start, expect[j].l_start ); 787 ATF_CHECK_EQ(result[j].l_len, expect[j].l_len ); 788 ATF_CHECK_EQ(result[j].l_pid, expect[j].l_pid ); 789 ATF_CHECK_EQ(result[j].l_type, expect[j].l_type ); 790 ATF_CHECK_EQ(result[j].l_whence, expect[j].l_whence); 791 } 792 } 793 794 /* 795 * Release processes. This also releases the fds and locks 796 * making fs unmount possible 797 */ 798 for (i = 0; i < __arraycount(lwp); i++) { 799 rump_pub_lwproc_switch(lwp[i]); 800 rump_pub_lwproc_releaselwp(); 801 } 802 803 FSTEST_EXIT(); 804 } 805 806 static void 807 access_simple(const atf_tc_t *tc, const char *mp) 808 { 809 int fd; 810 int tmode; 811 812 FSTEST_ENTER(); 813 RL(fd = rump_sys_open("tfile", O_CREAT | O_RDWR, 0777)); 814 RL(rump_sys_close(fd)); 815 816 #define ALLACC (F_OK | X_OK | W_OK | R_OK) 817 if (FSTYPE_SYSVBFS(tc) || FSTYPE_MSDOS(tc)) 818 tmode = F_OK; 819 else 820 tmode = ALLACC; 821 822 RL(rump_sys_access("tfile", tmode)); 823 824 /* PR kern/44648 */ 825 ATF_REQUIRE_ERRNO(EINVAL, rump_sys_access("tfile", ALLACC+1) == -1); 826 #undef ALLACC 827 FSTEST_EXIT(); 828 } 829 830 static void 831 read_directory(const atf_tc_t *tc, const char *mp) 832 { 833 char buf[1024]; 834 int fd, res; 835 ssize_t size; 836 837 FSTEST_ENTER(); 838 fd = rump_sys_open(".", O_DIRECTORY | O_RDONLY, 0777); 839 ATF_REQUIRE(fd != -1); 840 841 size = rump_sys_pread(fd, buf, sizeof(buf), 0); 842 ATF_CHECK(size != -1 || errno == EISDIR); 843 size = rump_sys_read(fd, buf, sizeof(buf)); 844 ATF_CHECK(size != -1 || errno == EISDIR); 845 846 res = rump_sys_close(fd); 847 ATF_REQUIRE(res != -1); 848 FSTEST_EXIT(); 849 } 850 851 ATF_TC_FSAPPLY(lookup_simple, "simple lookup (./.. on root)"); 852 ATF_TC_FSAPPLY(lookup_complex, "lookup of non-dot entries"); 853 ATF_TC_FSAPPLY(dir_simple, "mkdir/rmdir"); 854 ATF_TC_FSAPPLY(dir_notempty, "non-empty directories cannot be removed"); 855 ATF_TC_FSAPPLY(dir_rmdirdotdot, "remove .. and try to cd out"); 856 ATF_TC_FSAPPLY(rename_dir, "exercise various directory renaming ops"); 857 ATF_TC_FSAPPLY(rename_dotdot, "rename dir .."); 858 ATF_TC_FSAPPLY(rename_reg_nodir, "rename regular files, no subdirectories"); 859 ATF_TC_FSAPPLY(create_nametoolong, "create file with name too long"); 860 ATF_TC_FSAPPLY(create_exist, "create with O_EXCL"); 861 ATF_TC_FSAPPLY(rename_nametoolong, "rename to file with name too long"); 862 ATF_TC_FSAPPLY(symlink_zerolen, "symlink with 0-len target"); 863 ATF_TC_FSAPPLY(symlink_root, "symlink to root directory"); 864 ATF_TC_FSAPPLY(attrs, "check setting attributes works"); 865 ATF_TC_FSAPPLY(fcntl_lock, "check fcntl F_SETLK"); 866 ATF_TC_FSAPPLY(fcntl_getlock_pids,"fcntl F_GETLK w/ many procs, PR kern/44494"); 867 ATF_TC_FSAPPLY(access_simple, "access(2)"); 868 ATF_TC_FSAPPLY(read_directory, "read(2) on directories"); 869 870 ATF_TP_ADD_TCS(tp) 871 { 872 873 ATF_TP_FSAPPLY(lookup_simple); 874 ATF_TP_FSAPPLY(lookup_complex); 875 ATF_TP_FSAPPLY(dir_simple); 876 ATF_TP_FSAPPLY(dir_notempty); 877 ATF_TP_FSAPPLY(dir_rmdirdotdot); 878 ATF_TP_FSAPPLY(rename_dir); 879 ATF_TP_FSAPPLY(rename_dotdot); 880 ATF_TP_FSAPPLY(rename_reg_nodir); 881 ATF_TP_FSAPPLY(create_nametoolong); 882 ATF_TP_FSAPPLY(create_exist); 883 ATF_TP_FSAPPLY(rename_nametoolong); 884 ATF_TP_FSAPPLY(symlink_zerolen); 885 ATF_TP_FSAPPLY(symlink_root); 886 ATF_TP_FSAPPLY(attrs); 887 ATF_TP_FSAPPLY(fcntl_lock); 888 ATF_TP_FSAPPLY(fcntl_getlock_pids); 889 ATF_TP_FSAPPLY(access_simple); 890 ATF_TP_FSAPPLY(read_directory); 891 892 return atf_no_error(); 893 } 894
Indexes created Mon Sep 29 21:09:56 GMT 2025