1 /* $NetBSD: t_vnops.c,v 1.33 2012/03/20 18:20:49 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 ATF_REQUIRE_ERRNO(xerrno, rump_sys_chdir("..") == -1); 180 FSTEST_EXIT(); 181 } 182 183 static void 184 checkfile(const char *path, struct stat *refp) 185 { 186 char buf[MAXPATHLEN]; 187 struct stat sb; 188 static int n = 1; 189 190 md(buf, path, "file"); 191 if (rump_sys_stat(buf, &sb) == -1) 192 atf_tc_fail_errno("cannot stat file %d (%s)", n, buf); 193 if (memcmp(&sb, refp, sizeof(sb)) != 0) 194 atf_tc_fail("stat mismatch %d", n); 195 n++; 196 } 197 198 static void 199 rename_dir(const atf_tc_t *tc, const char *mp) 200 { 201 char pb1[MAXPATHLEN], pb2[MAXPATHLEN], pb3[MAXPATHLEN]; 202 struct stat ref, sb; 203 204 if (FSTYPE_RUMPFS(tc)) 205 atf_tc_skip("rename not supported by file system"); 206 207 USES_DIRS; 208 209 md(pb1, mp, "dir1"); 210 if (rump_sys_mkdir(pb1, 0777) == -1) 211 atf_tc_fail_errno("mkdir 1"); 212 213 md(pb2, mp, "dir2"); 214 if (rump_sys_mkdir(pb2, 0777) == -1) 215 atf_tc_fail_errno("mkdir 2"); 216 md(pb2, mp, "dir2/subdir"); 217 if (rump_sys_mkdir(pb2, 0777) == -1) 218 atf_tc_fail_errno("mkdir 3"); 219 220 md(pb3, mp, "dir1/file"); 221 if (rump_sys_mknod(pb3, S_IFREG | 0777, -1) == -1) 222 atf_tc_fail_errno("create file"); 223 if (rump_sys_stat(pb3, &ref) == -1) 224 atf_tc_fail_errno("stat of file"); 225 226 /* 227 * First try ops which should succeed. 228 */ 229 230 /* rename within directory */ 231 md(pb3, mp, "dir3"); 232 if (rump_sys_rename(pb1, pb3) == -1) 233 atf_tc_fail_errno("rename 1"); 234 checkfile(pb3, &ref); 235 236 /* rename directory onto itself (two ways, should fail) */ 237 md(pb1, mp, "dir3/."); 238 if (rump_sys_rename(pb1, pb3) != -1 || errno != EINVAL) 239 atf_tc_fail_errno("rename 2"); 240 if (rump_sys_rename(pb3, pb1) != -1 || errno != EISDIR) 241 atf_tc_fail_errno("rename 3"); 242 243 checkfile(pb3, &ref); 244 245 /* rename father of directory into directory */ 246 md(pb1, mp, "dir2/dir"); 247 md(pb2, mp, "dir2"); 248 if (rump_sys_rename(pb2, pb1) != -1 || errno != EINVAL) 249 atf_tc_fail_errno("rename 4"); 250 251 /* same for grandfather */ 252 md(pb1, mp, "dir2/subdir/dir2"); 253 if (rump_sys_rename(pb2, pb1) != -1 || errno != EINVAL) 254 atf_tc_fail("rename 5"); 255 256 checkfile(pb3, &ref); 257 258 /* rename directory over a non-empty directory */ 259 if (rump_sys_rename(pb2, pb3) != -1 || errno != ENOTEMPTY) 260 atf_tc_fail("rename 6"); 261 262 /* cross-directory rename */ 263 md(pb1, mp, "dir3"); 264 md(pb2, mp, "dir2/somedir"); 265 if (rump_sys_rename(pb1, pb2) == -1) 266 atf_tc_fail_errno("rename 7"); 267 checkfile(pb2, &ref); 268 269 /* move to parent directory */ 270 md(pb1, mp, "dir2/somedir/../../dir3"); 271 if (rump_sys_rename(pb2, pb1) == -1) 272 atf_tc_fail_errno("rename 8"); 273 md(pb1, mp, "dir2/../dir3"); 274 checkfile(pb1, &ref); 275 276 /* atomic cross-directory rename */ 277 md(pb3, mp, "dir2/subdir"); 278 if (rump_sys_rename(pb1, pb3) == -1) 279 atf_tc_fail_errno("rename 9"); 280 checkfile(pb3, &ref); 281 282 /* rename directory over an empty directory */ 283 md(pb1, mp, "parent"); 284 md(pb2, mp, "parent/dir1"); 285 md(pb3, mp, "parent/dir2"); 286 RL(rump_sys_mkdir(pb1, 0777)); 287 RL(rump_sys_mkdir(pb2, 0777)); 288 RL(rump_sys_mkdir(pb3, 0777)); 289 RL(rump_sys_rename(pb2, pb3)); 290 291 RL(rump_sys_stat(pb1, &sb)); 292 if (! FSTYPE_MSDOS(tc)) 293 ATF_CHECK_EQ(sb.st_nlink, 3); 294 RL(rump_sys_rmdir(pb3)); 295 RL(rump_sys_rmdir(pb1)); 296 } 297 298 static void 299 rename_dotdot(const atf_tc_t *tc, const char *mp) 300 { 301 302 if (FSTYPE_RUMPFS(tc)) 303 atf_tc_skip("rename not supported by file system"); 304 305 USES_DIRS; 306 307 if (rump_sys_chdir(mp) == -1) 308 atf_tc_fail_errno("chdir mountpoint"); 309 310 if (rump_sys_mkdir("dir1", 0777) == -1) 311 atf_tc_fail_errno("mkdir 1"); 312 if (rump_sys_mkdir("dir2", 0777) == -1) 313 atf_tc_fail_errno("mkdir 2"); 314 315 if (rump_sys_rename("dir1", "dir1/..") != -1 || errno != EINVAL) 316 atf_tc_fail_errno("self-dotdot to"); 317 318 if (rump_sys_rename("dir1/..", "sometarget") != -1 || errno != EINVAL) 319 atf_tc_fail_errno("self-dotdot from"); 320 321 if (rump_sys_rename("dir1", "dir2/..") != -1 || errno != EINVAL) 322 atf_tc_fail("other-dotdot"); 323 324 rump_sys_chdir("/"); 325 } 326 327 static void 328 rename_reg_nodir(const atf_tc_t *tc, const char *mp) 329 { 330 bool haslinks; 331 struct stat sb; 332 ino_t f1ino, f2ino; 333 334 if (FSTYPE_RUMPFS(tc)) 335 atf_tc_skip("rename not supported by file system"); 336 337 if (rump_sys_chdir(mp) == -1) 338 atf_tc_fail_errno("chdir mountpoint"); 339 340 if (FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc)) 341 haslinks = false; 342 else 343 haslinks = true; 344 345 if (rump_sys_mknod("file1", S_IFREG | 0777, -1) == -1) 346 atf_tc_fail_errno("create file"); 347 if (rump_sys_mknod("file2", S_IFREG | 0777, -1) == -1) 348 atf_tc_fail_errno("create file"); 349 350 if (rump_sys_stat("file1", &sb) == -1) 351 atf_tc_fail_errno("stat"); 352 f1ino = sb.st_ino; 353 354 if (haslinks) { 355 if (rump_sys_link("file1", "file_link") == -1) 356 atf_tc_fail_errno("link"); 357 if (rump_sys_stat("file_link", &sb) == -1) 358 atf_tc_fail_errno("stat"); 359 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 360 ATF_REQUIRE_EQ(sb.st_nlink, 2); 361 } 362 363 if (rump_sys_stat("file2", &sb) == -1) 364 atf_tc_fail_errno("stat"); 365 f2ino = sb.st_ino; 366 367 if (rump_sys_rename("file1", "file3") == -1) 368 atf_tc_fail_errno("rename 1"); 369 if (rump_sys_stat("file3", &sb) == -1) 370 atf_tc_fail_errno("stat 1"); 371 if (haslinks) { 372 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 373 } 374 if (rump_sys_stat("file1", &sb) != -1 || errno != ENOENT) 375 atf_tc_fail_errno("source 1"); 376 377 if (rump_sys_rename("file3", "file2") == -1) 378 atf_tc_fail_errno("rename 2"); 379 if (rump_sys_stat("file2", &sb) == -1) 380 atf_tc_fail_errno("stat 2"); 381 if (haslinks) { 382 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 383 } 384 385 if (rump_sys_stat("file3", &sb) != -1 || errno != ENOENT) 386 atf_tc_fail_errno("source 2"); 387 388 if (haslinks) { 389 if (rump_sys_rename("file2", "file_link") == -1) 390 atf_tc_fail_errno("rename hardlink"); 391 if (rump_sys_stat("file2", &sb) != -1 || errno != ENOENT) 392 atf_tc_fail_errno("source 3"); 393 if (rump_sys_stat("file_link", &sb) == -1) 394 atf_tc_fail_errno("stat 2"); 395 ATF_REQUIRE_EQ(sb.st_ino, f1ino); 396 ATF_REQUIRE_EQ(sb.st_nlink, 1); 397 } 398 399 rump_sys_chdir("/"); 400 } 401 402 static void 403 create_nametoolong(const atf_tc_t *tc, const char *mp) 404 { 405 char *name; 406 int fd; 407 long val; 408 size_t len; 409 410 if (rump_sys_chdir(mp) == -1) 411 atf_tc_fail_errno("chdir mountpoint"); 412 413 val = rump_sys_pathconf(".", _PC_NAME_MAX); 414 if (val == -1) 415 atf_tc_fail_errno("pathconf"); 416 417 len = val + 1; 418 name = malloc(len+1); 419 if (name == NULL) 420 atf_tc_fail_errno("malloc"); 421 422 memset(name, 'a', len); 423 *(name+len) = '\0'; 424 425 val = rump_sys_pathconf(".", _PC_NO_TRUNC); 426 if (val == -1) 427 atf_tc_fail_errno("pathconf"); 428 429 fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666); 430 if (val != 0 && (fd != -1 || errno != ENAMETOOLONG)) 431 atf_tc_fail_errno("open"); 432 433 if (val == 0 && rump_sys_close(fd) == -1) 434 atf_tc_fail_errno("close"); 435 if (val == 0 && rump_sys_unlink(name) == -1) 436 atf_tc_fail_errno("unlink"); 437 438 free(name); 439 440 rump_sys_chdir("/"); 441 } 442 443 static void 444 create_exist(const atf_tc_t *tc, const char *mp) 445 { 446 const char *name = "hoge"; 447 int fd; 448 449 RL(rump_sys_chdir(mp)); 450 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT|O_EXCL, 0666)); 451 RL(rump_sys_close(fd)); 452 RL(rump_sys_unlink(name)); 453 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)); 454 RL(rump_sys_close(fd)); 455 RL(fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)); 456 RL(rump_sys_close(fd)); 457 ATF_REQUIRE_ERRNO(EEXIST, 458 (fd = rump_sys_open(name, O_RDWR|O_CREAT|O_EXCL, 0666))); 459 RL(rump_sys_unlink(name)); 460 RL(rump_sys_chdir("/")); 461 } 462 463 static void 464 rename_nametoolong(const atf_tc_t *tc, const char *mp) 465 { 466 char *name; 467 int res, fd; 468 long val; 469 size_t len; 470 471 if (FSTYPE_RUMPFS(tc)) 472 atf_tc_skip("rename not supported by file system"); 473 474 if (rump_sys_chdir(mp) == -1) 475 atf_tc_fail_errno("chdir mountpoint"); 476 477 val = rump_sys_pathconf(".", _PC_NAME_MAX); 478 if (val == -1) 479 atf_tc_fail_errno("pathconf"); 480 481 len = val + 1; 482 name = malloc(len+1); 483 if (name == NULL) 484 atf_tc_fail_errno("malloc"); 485 486 memset(name, 'a', len); 487 *(name+len) = '\0'; 488 489 fd = rump_sys_open("dummy", O_RDWR|O_CREAT, 0666); 490 if (fd == -1) 491 atf_tc_fail_errno("open"); 492 if (rump_sys_close(fd) == -1) 493 atf_tc_fail_errno("close"); 494 495 val = rump_sys_pathconf(".", _PC_NO_TRUNC); 496 if (val == -1) 497 atf_tc_fail_errno("pathconf"); 498 499 res = rump_sys_rename("dummy", name); 500 if (val != 0 && (res != -1 || errno != ENAMETOOLONG)) 501 atf_tc_fail_errno("rename"); 502 503 if (val == 0 && rump_sys_unlink(name) == -1) 504 atf_tc_fail_errno("unlink"); 505 506 free(name); 507 508 rump_sys_chdir("/"); 509 } 510 511 static void 512 symlink_zerolen(const atf_tc_t *tc, const char *mp) 513 { 514 515 USES_SYMLINKS; 516 517 RL(rump_sys_chdir(mp)); 518 519 RL(rump_sys_symlink("", "afile")); 520 RL(rump_sys_chdir("/")); 521 } 522 523 static void 524 symlink_root(const atf_tc_t *tc, const char *mp) 525 { 526 527 USES_SYMLINKS; 528 529 RL(rump_sys_chdir(mp)); 530 RL(rump_sys_symlink("/", "foo")); 531 RL(rump_sys_chdir("foo")); 532 } 533 534 static void 535 attrs(const atf_tc_t *tc, const char *mp) 536 { 537 struct stat sb, sb2; 538 struct timeval tv[2]; 539 int fd; 540 541 FSTEST_ENTER(); 542 RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755)); 543 RL(rump_sys_close(fd)); 544 RL(rump_sys_stat(TESTFILE, &sb)); 545 if (!(FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc))) { 546 RL(rump_sys_chown(TESTFILE, 1, 2)); 547 sb.st_uid = 1; 548 sb.st_gid = 2; 549 RL(rump_sys_chmod(TESTFILE, 0123)); 550 sb.st_mode = (sb.st_mode & ~ACCESSPERMS) | 0123; 551 } 552 553 tv[0].tv_sec = 1000000000; /* need something >1980 for msdosfs */ 554 tv[0].tv_usec = 1; 555 tv[1].tv_sec = 1000000002; /* need even seconds for msdosfs */ 556 tv[1].tv_usec = 3; 557 RL(rump_sys_utimes(TESTFILE, tv)); 558 RL(rump_sys_utimes(TESTFILE, tv)); /* XXX: utimes & birthtime */ 559 sb.st_atimespec.tv_sec = 1000000000; 560 sb.st_atimespec.tv_nsec = 1000; 561 sb.st_mtimespec.tv_sec = 1000000002; 562 sb.st_mtimespec.tv_nsec = 3000; 563 564 RL(rump_sys_stat(TESTFILE, &sb2)); 565 #define CHECK(a) ATF_REQUIRE_EQ(sb.a, sb2.a) 566 if (!(FSTYPE_MSDOS(tc) || FSTYPE_SYSVBFS(tc))) { 567 CHECK(st_uid); 568 CHECK(st_gid); 569 CHECK(st_mode); 570 } 571 if (!FSTYPE_MSDOS(tc)) { 572 /* msdosfs has only access date, not time */ 573 CHECK(st_atimespec.tv_sec); 574 } 575 CHECK(st_mtimespec.tv_sec); 576 if (!(FSTYPE_EXT2FS(tc) || FSTYPE_MSDOS(tc) || 577 FSTYPE_SYSVBFS(tc) || FSTYPE_V7FS(tc))) { 578 CHECK(st_atimespec.tv_nsec); 579 CHECK(st_mtimespec.tv_nsec); 580 } 581 #undef CHECK 582 583 FSTEST_EXIT(); 584 } 585 586 static void 587 fcntl_lock(const atf_tc_t *tc, const char *mp) 588 { 589 int fd, fd2; 590 struct flock l; 591 struct lwp *lwp1, *lwp2; 592 593 FSTEST_ENTER(); 594 l.l_pid = 0; 595 l.l_start = l.l_len = 1024; 596 l.l_type = F_RDLCK | F_WRLCK; 597 l.l_whence = SEEK_END; 598 599 lwp1 = rump_pub_lwproc_curlwp(); 600 RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755)); 601 RL(rump_sys_ftruncate(fd, 8192)); 602 603 /* PR kern/43321 */ 604 RL(rump_sys_fcntl(fd, F_SETLK, &l)); 605 606 /* Next, we fork and try to lock the same area */ 607 RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG)); 608 lwp2 = rump_pub_lwproc_curlwp(); 609 RL(fd2 = rump_sys_open(TESTFILE, O_RDWR, 0)); 610 ATF_REQUIRE_ERRNO(EAGAIN, rump_sys_fcntl(fd2, F_SETLK, &l)); 611 612 /* Switch back and unlock... */ 613 rump_pub_lwproc_switch(lwp1); 614 l.l_type = F_UNLCK; 615 RL(rump_sys_fcntl(fd, F_SETLK, &l)); 616 617 /* ... and try to lock again */ 618 rump_pub_lwproc_switch(lwp2); 619 l.l_type = F_RDLCK | F_WRLCK; 620 RL(rump_sys_fcntl(fd2, F_SETLK, &l)); 621 622 RL(rump_sys_close(fd2)); 623 rump_pub_lwproc_releaselwp(); 624 625 RL(rump_sys_close(fd)); 626 627 FSTEST_EXIT(); 628 } 629 630 static int 631 flock_compare(const void *p, const void *q) 632 { 633 int a = ((const struct flock *)p)->l_start; 634 int b = ((const struct flock *)q)->l_start; 635 return a < b ? -1 : (a > b ? 1 : 0); 636 } 637 638 /* 639 * Find all locks set by fcntl_getlock_pids test 640 * using GETLK for a range [start, start+end], and, 641 * if there is a blocking lock, recursively find 642 * all locks to the left (toward the beginning of 643 * a file) and to the right of the lock. 644 * The function also understands "until end of file" 645 * convention when len==0. 646 */ 647 static unsigned int 648 fcntl_getlocks(int fildes, off_t start, off_t len, 649 struct flock *lock, struct flock *end) 650 { 651 unsigned int rv = 0; 652 const struct flock l = { start, len, 0, F_RDLCK, SEEK_SET }; 653 654 if (lock == end) 655 return rv; 656 657 RL(rump_sys_fcntl(fildes, F_GETLK, &l)); 658 659 if (l.l_type == F_UNLCK) 660 return rv; 661 662 *lock++ = l; 663 rv += 1; 664 665 ATF_REQUIRE(l.l_whence == SEEK_SET); 666 667 if (l.l_start > start) { 668 unsigned int n = 669 fcntl_getlocks(fildes, start, l.l_start - start, lock, end); 670 rv += n; 671 lock += n; 672 if (lock == end) 673 return rv; 674 } 675 676 if (l.l_len == 0) /* does l spans until the end? */ 677 return rv; 678 679 if (len == 0) /* are we looking for locks until the end? */ { 680 rv += fcntl_getlocks(fildes, l.l_start + l.l_len, len, lock, end); 681 } else if (l.l_start + l.l_len < start + len) { 682 len -= l.l_start + l.l_len - start; 683 rv += fcntl_getlocks(fildes, l.l_start + l.l_len, len, lock, end); 684 } 685 686 return rv; 687 } 688 689 static void 690 fcntl_getlock_pids(const atf_tc_t *tc, const char *mp) 691 { 692 /* test non-overlaping ranges */ 693 struct flock expect[4]; 694 const struct flock lock[4] = { 695 { 0, 2, 0, F_WRLCK, SEEK_SET }, 696 { 2, 1, 0, F_WRLCK, SEEK_SET }, 697 { 7, 5, 0, F_WRLCK, SEEK_SET }, 698 { 4, 3, 0, F_WRLCK, SEEK_SET }, 699 }; 700 701 /* Add extra element to make sure recursion does't stop at array end */ 702 struct flock result[5]; 703 704 /* Add 5th process */ 705 int fd[5]; 706 pid_t pid[5]; 707 struct lwp *lwp[5]; 708 709 unsigned int i, j; 710 const off_t sz = 8192; 711 int omode = 0755; 712 int oflags = O_RDWR | O_CREAT; 713 714 memcpy(expect, lock, sizeof(lock)); 715 716 FSTEST_ENTER(); 717 718 /* 719 * First, we create 4 processes and let each lock a range of the 720 * file. Note that the third and fourth processes lock in 721 * "reverse" order, i.e. the greater pid locks a range before 722 * the lesser pid. 723 * Then, we create 5th process which doesn't lock anything. 724 */ 725 for (i = 0; i < __arraycount(lwp); i++) { 726 RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG)); 727 728 lwp[i] = rump_pub_lwproc_curlwp(); 729 pid[i] = rump_sys_getpid(); 730 731 RL(fd[i] = rump_sys_open(TESTFILE, oflags, omode)); 732 oflags = O_RDWR; 733 omode = 0; 734 735 RL(rump_sys_ftruncate(fd[i], sz)); 736 737 if (i < __arraycount(lock)) { 738 RL(rump_sys_fcntl(fd[i], F_SETLK, &lock[i])); 739 expect[i].l_pid = pid[i]; 740 } 741 } 742 743 qsort(expect, __arraycount(expect), sizeof(expect[0]), &flock_compare); 744 745 /* 746 * In the context of each process, recursively find all locks 747 * that would block the current process. Processes 1-4 don't 748 * see their own lock, we insert it to simplify checks. 749 * Process 5 sees all 4 locks. 750 */ 751 for (i = 0; i < __arraycount(lwp); i++) { 752 unsigned int nlocks; 753 754 rump_pub_lwproc_switch(lwp[i]); 755 756 memset(result, 0, sizeof(result)); 757 nlocks = fcntl_getlocks(fd[i], 0, sz, 758 result, result + __arraycount(result)); 759 760 if (i < __arraycount(lock)) { 761 ATF_REQUIRE(nlocks < __arraycount(result)); 762 result[nlocks] = lock[i]; 763 result[nlocks].l_pid = pid[i]; 764 nlocks++; 765 } 766 767 ATF_CHECK_EQ(nlocks, __arraycount(expect)); 768 769 qsort(result, nlocks, sizeof(result[0]), &flock_compare); 770 771 for (j = 0; j < nlocks; j++) { 772 ATF_CHECK_EQ(result[j].l_start, expect[j].l_start ); 773 ATF_CHECK_EQ(result[j].l_len, expect[j].l_len ); 774 ATF_CHECK_EQ(result[j].l_pid, expect[j].l_pid ); 775 ATF_CHECK_EQ(result[j].l_type, expect[j].l_type ); 776 ATF_CHECK_EQ(result[j].l_whence, expect[j].l_whence); 777 } 778 } 779 780 /* 781 * Release processes. This also releases the fds and locks 782 * making fs unmount possible 783 */ 784 for (i = 0; i < __arraycount(lwp); i++) { 785 rump_pub_lwproc_switch(lwp[i]); 786 rump_pub_lwproc_releaselwp(); 787 } 788 789 FSTEST_EXIT(); 790 } 791 792 static void 793 access_simple(const atf_tc_t *tc, const char *mp) 794 { 795 int fd; 796 int tmode; 797 798 FSTEST_ENTER(); 799 RL(fd = rump_sys_open("tfile", O_CREAT | O_RDWR, 0777)); 800 RL(rump_sys_close(fd)); 801 802 #define ALLACC (F_OK | X_OK | W_OK | R_OK) 803 if (FSTYPE_SYSVBFS(tc) || FSTYPE_MSDOS(tc)) 804 tmode = F_OK; 805 else 806 tmode = ALLACC; 807 808 RL(rump_sys_access("tfile", tmode)); 809 810 /* PR kern/44648 */ 811 ATF_REQUIRE_ERRNO(EINVAL, rump_sys_access("tfile", ALLACC+1) == -1); 812 #undef ALLACC 813 FSTEST_EXIT(); 814 } 815 816 static void 817 read_directory(const atf_tc_t *tc, const char *mp) 818 { 819 char buf[1024]; 820 int fd, res; 821 ssize_t size; 822 823 FSTEST_ENTER(); 824 fd = rump_sys_open(".", O_DIRECTORY | O_RDONLY, 0777); 825 ATF_REQUIRE(fd != -1); 826 827 size = rump_sys_pread(fd, buf, sizeof(buf), 0); 828 ATF_CHECK(size != -1 || errno == EISDIR); 829 size = rump_sys_read(fd, buf, sizeof(buf)); 830 ATF_CHECK(size != -1 || errno == EISDIR); 831 832 res = rump_sys_close(fd); 833 ATF_REQUIRE(res != -1); 834 FSTEST_EXIT(); 835 } 836 837 ATF_TC_FSAPPLY(lookup_simple, "simple lookup (./.. on root)"); 838 ATF_TC_FSAPPLY(lookup_complex, "lookup of non-dot entries"); 839 ATF_TC_FSAPPLY(dir_simple, "mkdir/rmdir"); 840 ATF_TC_FSAPPLY(dir_notempty, "non-empty directories cannot be removed"); 841 ATF_TC_FSAPPLY(dir_rmdirdotdot, "remove .. and try to cd out (PR kern/44657)"); 842 ATF_TC_FSAPPLY(rename_dir, "exercise various directory renaming ops " 843 "(PR kern/44288)"); 844 ATF_TC_FSAPPLY(rename_dotdot, "rename dir .. (PR kern/43617)"); 845 ATF_TC_FSAPPLY(rename_reg_nodir, "rename regular files, no subdirectories"); 846 ATF_TC_FSAPPLY(create_nametoolong, "create file with name too long"); 847 ATF_TC_FSAPPLY(create_exist, "create with O_EXCL"); 848 ATF_TC_FSAPPLY(rename_nametoolong, "rename to file with name too long"); 849 ATF_TC_FSAPPLY(symlink_zerolen, "symlink with 0-len target"); 850 ATF_TC_FSAPPLY(symlink_root, "symlink to root directory"); 851 ATF_TC_FSAPPLY(attrs, "check setting attributes works"); 852 ATF_TC_FSAPPLY(fcntl_lock, "check fcntl F_SETLK"); 853 ATF_TC_FSAPPLY(fcntl_getlock_pids,"fcntl F_GETLK w/ many procs, PR kern/44494"); 854 ATF_TC_FSAPPLY(access_simple, "access(2)"); 855 ATF_TC_FSAPPLY(read_directory, "read(2) on directories"); 856 857 ATF_TP_ADD_TCS(tp) 858 { 859 860 ATF_TP_FSAPPLY(lookup_simple); 861 ATF_TP_FSAPPLY(lookup_complex); 862 ATF_TP_FSAPPLY(dir_simple); 863 ATF_TP_FSAPPLY(dir_notempty); 864 ATF_TP_FSAPPLY(dir_rmdirdotdot); 865 ATF_TP_FSAPPLY(rename_dir); 866 ATF_TP_FSAPPLY(rename_dotdot); 867 ATF_TP_FSAPPLY(rename_reg_nodir); 868 ATF_TP_FSAPPLY(create_nametoolong); 869 ATF_TP_FSAPPLY(create_exist); 870 ATF_TP_FSAPPLY(rename_nametoolong); 871 ATF_TP_FSAPPLY(symlink_zerolen); 872 ATF_TP_FSAPPLY(symlink_root); 873 ATF_TP_FSAPPLY(attrs); 874 ATF_TP_FSAPPLY(fcntl_lock); 875 ATF_TP_FSAPPLY(fcntl_getlock_pids); 876 ATF_TP_FSAPPLY(access_simple); 877 ATF_TP_FSAPPLY(read_directory); 878 879 return atf_no_error(); 880 } 881