1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2013 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 29 */ 30 31 #include <assert.h> 32 #include <ctype.h> 33 #include <errno.h> 34 #include <libgen.h> 35 #include <libintl.h> 36 #include <libuutil.h> 37 #include <libnvpair.h> 38 #include <locale.h> 39 #include <stddef.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <strings.h> 43 #include <unistd.h> 44 #include <fcntl.h> 45 #include <zone.h> 46 #include <grp.h> 47 #include <pwd.h> 48 #include <signal.h> 49 #include <sys/list.h> 50 #include <sys/mkdev.h> 51 #include <sys/mntent.h> 52 #include <sys/mnttab.h> 53 #include <sys/mount.h> 54 #include <sys/stat.h> 55 #include <sys/fs/zfs.h> 56 #include <sys/types.h> 57 #include <time.h> 58 59 #include <libzfs.h> 60 #include <libzfs_core.h> 61 #include <zfs_prop.h> 62 #include <zfs_deleg.h> 63 #include <libuutil.h> 64 #include <aclutils.h> 65 #include <directory.h> 66 67 #include "zfs_iter.h" 68 #include "zfs_util.h" 69 #include "zfs_comutil.h" 70 71 libzfs_handle_t *g_zfs; 72 73 static FILE *mnttab_file; 74 static char history_str[HIS_MAX_RECORD_LEN]; 75 static boolean_t log_history = B_TRUE; 76 77 static int zfs_do_clone(int argc, char **argv); 78 static int zfs_do_create(int argc, char **argv); 79 static int zfs_do_destroy(int argc, char **argv); 80 static int zfs_do_get(int argc, char **argv); 81 static int zfs_do_inherit(int argc, char **argv); 82 static int zfs_do_list(int argc, char **argv); 83 static int zfs_do_mount(int argc, char **argv); 84 static int zfs_do_rename(int argc, char **argv); 85 static int zfs_do_rollback(int argc, char **argv); 86 static int zfs_do_set(int argc, char **argv); 87 static int zfs_do_upgrade(int argc, char **argv); 88 static int zfs_do_snapshot(int argc, char **argv); 89 static int zfs_do_unmount(int argc, char **argv); 90 static int zfs_do_share(int argc, char **argv); 91 static int zfs_do_unshare(int argc, char **argv); 92 static int zfs_do_send(int argc, char **argv); 93 static int zfs_do_receive(int argc, char **argv); 94 static int zfs_do_promote(int argc, char **argv); 95 static int zfs_do_userspace(int argc, char **argv); 96 static int zfs_do_allow(int argc, char **argv); 97 static int zfs_do_unallow(int argc, char **argv); 98 static int zfs_do_hold(int argc, char **argv); 99 static int zfs_do_holds(int argc, char **argv); 100 static int zfs_do_release(int argc, char **argv); 101 static int zfs_do_diff(int argc, char **argv); 102 static int zfs_do_bookmark(int argc, char **argv); 103 104 /* 105 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 106 */ 107 108 #ifdef DEBUG 109 const char * 110 _umem_debug_init(void) 111 { 112 return ("default,verbose"); /* $UMEM_DEBUG setting */ 113 } 114 115 const char * 116 _umem_logging_init(void) 117 { 118 return ("fail,contents"); /* $UMEM_LOGGING setting */ 119 } 120 #endif 121 122 typedef enum { 123 HELP_CLONE, 124 HELP_CREATE, 125 HELP_DESTROY, 126 HELP_GET, 127 HELP_INHERIT, 128 HELP_UPGRADE, 129 HELP_LIST, 130 HELP_MOUNT, 131 HELP_PROMOTE, 132 HELP_RECEIVE, 133 HELP_RENAME, 134 HELP_ROLLBACK, 135 HELP_SEND, 136 HELP_SET, 137 HELP_SHARE, 138 HELP_SNAPSHOT, 139 HELP_UNMOUNT, 140 HELP_UNSHARE, 141 HELP_ALLOW, 142 HELP_UNALLOW, 143 HELP_USERSPACE, 144 HELP_GROUPSPACE, 145 HELP_HOLD, 146 HELP_HOLDS, 147 HELP_RELEASE, 148 HELP_DIFF, 149 HELP_BOOKMARK, 150 } zfs_help_t; 151 152 typedef struct zfs_command { 153 const char *name; 154 int (*func)(int argc, char **argv); 155 zfs_help_t usage; 156 } zfs_command_t; 157 158 /* 159 * Master command table. Each ZFS command has a name, associated function, and 160 * usage message. The usage messages need to be internationalized, so we have 161 * to have a function to return the usage message based on a command index. 162 * 163 * These commands are organized according to how they are displayed in the usage 164 * message. An empty command (one with a NULL name) indicates an empty line in 165 * the generic usage message. 166 */ 167 static zfs_command_t command_table[] = { 168 { "create", zfs_do_create, HELP_CREATE }, 169 { "destroy", zfs_do_destroy, HELP_DESTROY }, 170 { NULL }, 171 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 172 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 173 { "clone", zfs_do_clone, HELP_CLONE }, 174 { "promote", zfs_do_promote, HELP_PROMOTE }, 175 { "rename", zfs_do_rename, HELP_RENAME }, 176 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 177 { NULL }, 178 { "list", zfs_do_list, HELP_LIST }, 179 { NULL }, 180 { "set", zfs_do_set, HELP_SET }, 181 { "get", zfs_do_get, HELP_GET }, 182 { "inherit", zfs_do_inherit, HELP_INHERIT }, 183 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 184 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 185 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 186 { NULL }, 187 { "mount", zfs_do_mount, HELP_MOUNT }, 188 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 189 { "share", zfs_do_share, HELP_SHARE }, 190 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 191 { NULL }, 192 { "send", zfs_do_send, HELP_SEND }, 193 { "receive", zfs_do_receive, HELP_RECEIVE }, 194 { NULL }, 195 { "allow", zfs_do_allow, HELP_ALLOW }, 196 { NULL }, 197 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 198 { NULL }, 199 { "hold", zfs_do_hold, HELP_HOLD }, 200 { "holds", zfs_do_holds, HELP_HOLDS }, 201 { "release", zfs_do_release, HELP_RELEASE }, 202 { "diff", zfs_do_diff, HELP_DIFF }, 203 }; 204 205 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 206 207 zfs_command_t *current_command; 208 209 static const char * 210 get_usage(zfs_help_t idx) 211 { 212 switch (idx) { 213 case HELP_CLONE: 214 return (gettext("\tclone [-p] [-o property=value] ... " 215 "<snapshot> <filesystem|volume>\n")); 216 case HELP_CREATE: 217 return (gettext("\tcreate [-p] [-o property=value] ... " 218 "<filesystem>\n" 219 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 220 "-V <size> <volume>\n")); 221 case HELP_DESTROY: 222 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 223 "\tdestroy [-dnpRrv] " 224 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 225 "\tdestroy <filesystem|volume>#<bookmark>\n")); 226 case HELP_GET: 227 return (gettext("\tget [-rHp] [-d max] " 228 "[-o \"all\" | field[,...]]\n" 229 "\t [-t type[,...]] [-s source[,...]]\n" 230 "\t <\"all\" | property[,...]> " 231 "[filesystem|volume|snapshot] ...\n")); 232 case HELP_INHERIT: 233 return (gettext("\tinherit [-rS] <property> " 234 "<filesystem|volume|snapshot> ...\n")); 235 case HELP_UPGRADE: 236 return (gettext("\tupgrade [-v]\n" 237 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 238 case HELP_LIST: 239 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 240 "[-s property]...\n\t [-S property]... [-t type[,...]] " 241 "[filesystem|volume|snapshot] ...\n")); 242 case HELP_MOUNT: 243 return (gettext("\tmount\n" 244 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 245 case HELP_PROMOTE: 246 return (gettext("\tpromote <clone-filesystem>\n")); 247 case HELP_RECEIVE: 248 return (gettext("\treceive [-vnFu] <filesystem|volume|" 249 "snapshot>\n" 250 "\treceive [-vnFu] [-d | -e] <filesystem>\n")); 251 case HELP_RENAME: 252 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 253 "<filesystem|volume|snapshot>\n" 254 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 255 "\trename -r <snapshot> <snapshot>\n")); 256 case HELP_ROLLBACK: 257 return (gettext("\trollback [-rRf] <snapshot>\n")); 258 case HELP_SEND: 259 return (gettext("\tsend [-DnPpRv] [-[iI] snapshot] " 260 "<snapshot>\n" 261 "\tsend [-i snapshot|bookmark] " 262 "<filesystem|volume|snapshot>\n")); 263 case HELP_SET: 264 return (gettext("\tset <property=value> " 265 "<filesystem|volume|snapshot> ...\n")); 266 case HELP_SHARE: 267 return (gettext("\tshare <-a | filesystem>\n")); 268 case HELP_SNAPSHOT: 269 return (gettext("\tsnapshot [-r] [-o property=value] ... " 270 "<filesystem|volume>@<snap> ...\n")); 271 case HELP_UNMOUNT: 272 return (gettext("\tunmount [-f] " 273 "<-a | filesystem|mountpoint>\n")); 274 case HELP_UNSHARE: 275 return (gettext("\tunshare " 276 "<-a | filesystem|mountpoint>\n")); 277 case HELP_ALLOW: 278 return (gettext("\tallow <filesystem|volume>\n" 279 "\tallow [-ldug] " 280 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 281 "\t <filesystem|volume>\n" 282 "\tallow [-ld] -e <perm|@setname>[,...] " 283 "<filesystem|volume>\n" 284 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 285 "\tallow -s @setname <perm|@setname>[,...] " 286 "<filesystem|volume>\n")); 287 case HELP_UNALLOW: 288 return (gettext("\tunallow [-rldug] " 289 "<\"everyone\"|user|group>[,...]\n" 290 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 291 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 292 "<filesystem|volume>\n" 293 "\tunallow [-r] -c [<perm|@setname>[,...]] " 294 "<filesystem|volume>\n" 295 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 296 "<filesystem|volume>\n")); 297 case HELP_USERSPACE: 298 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 299 "[-s field] ...\n" 300 "\t [-S field] ... [-t type[,...]] " 301 "<filesystem|snapshot>\n")); 302 case HELP_GROUPSPACE: 303 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 304 "[-s field] ...\n" 305 "\t [-S field] ... [-t type[,...]] " 306 "<filesystem|snapshot>\n")); 307 case HELP_HOLD: 308 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 309 case HELP_HOLDS: 310 return (gettext("\tholds [-r] <snapshot> ...\n")); 311 case HELP_RELEASE: 312 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 313 case HELP_DIFF: 314 return (gettext("\tdiff [-FHt] <snapshot> " 315 "[snapshot|filesystem]\n")); 316 case HELP_BOOKMARK: 317 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 318 } 319 320 abort(); 321 /* NOTREACHED */ 322 } 323 324 void 325 nomem(void) 326 { 327 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 328 exit(1); 329 } 330 331 /* 332 * Utility function to guarantee malloc() success. 333 */ 334 335 void * 336 safe_malloc(size_t size) 337 { 338 void *data; 339 340 if ((data = calloc(1, size)) == NULL) 341 nomem(); 342 343 return (data); 344 } 345 346 static char * 347 safe_strdup(char *str) 348 { 349 char *dupstr = strdup(str); 350 351 if (dupstr == NULL) 352 nomem(); 353 354 return (dupstr); 355 } 356 357 /* 358 * Callback routine that will print out information for each of 359 * the properties. 360 */ 361 static int 362 usage_prop_cb(int prop, void *cb) 363 { 364 FILE *fp = cb; 365 366 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 367 368 if (zfs_prop_readonly(prop)) 369 (void) fprintf(fp, " NO "); 370 else 371 (void) fprintf(fp, "YES "); 372 373 if (zfs_prop_inheritable(prop)) 374 (void) fprintf(fp, " YES "); 375 else 376 (void) fprintf(fp, " NO "); 377 378 if (zfs_prop_values(prop) == NULL) 379 (void) fprintf(fp, "-\n"); 380 else 381 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 382 383 return (ZPROP_CONT); 384 } 385 386 /* 387 * Display usage message. If we're inside a command, display only the usage for 388 * that command. Otherwise, iterate over the entire command table and display 389 * a complete usage message. 390 */ 391 static void 392 usage(boolean_t requested) 393 { 394 int i; 395 boolean_t show_properties = B_FALSE; 396 FILE *fp = requested ? stdout : stderr; 397 398 if (current_command == NULL) { 399 400 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 401 (void) fprintf(fp, 402 gettext("where 'command' is one of the following:\n\n")); 403 404 for (i = 0; i < NCOMMAND; i++) { 405 if (command_table[i].name == NULL) 406 (void) fprintf(fp, "\n"); 407 else 408 (void) fprintf(fp, "%s", 409 get_usage(command_table[i].usage)); 410 } 411 412 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 413 "pool/[dataset/]*dataset[@name]\n")); 414 } else { 415 (void) fprintf(fp, gettext("usage:\n")); 416 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 417 } 418 419 if (current_command != NULL && 420 (strcmp(current_command->name, "set") == 0 || 421 strcmp(current_command->name, "get") == 0 || 422 strcmp(current_command->name, "inherit") == 0 || 423 strcmp(current_command->name, "list") == 0)) 424 show_properties = B_TRUE; 425 426 if (show_properties) { 427 (void) fprintf(fp, 428 gettext("\nThe following properties are supported:\n")); 429 430 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 431 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 432 433 /* Iterate over all properties */ 434 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 435 ZFS_TYPE_DATASET); 436 437 (void) fprintf(fp, "\t%-15s ", "userused@..."); 438 (void) fprintf(fp, " NO NO <size>\n"); 439 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 440 (void) fprintf(fp, " NO NO <size>\n"); 441 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 442 (void) fprintf(fp, "YES NO <size> | none\n"); 443 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 444 (void) fprintf(fp, "YES NO <size> | none\n"); 445 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 446 (void) fprintf(fp, " NO NO <size>\n"); 447 448 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 449 "with standard units such as K, M, G, etc.\n")); 450 (void) fprintf(fp, gettext("\nUser-defined properties can " 451 "be specified by using a name containing a colon (:).\n")); 452 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 453 "properties must be appended with\n" 454 "a user or group specifier of one of these forms:\n" 455 " POSIX name (eg: \"matt\")\n" 456 " POSIX id (eg: \"126829\")\n" 457 " SMB name@domain (eg: \"matt@sun\")\n" 458 " SMB SID (eg: \"S-1-234-567-89\")\n")); 459 } else { 460 (void) fprintf(fp, 461 gettext("\nFor the property list, run: %s\n"), 462 "zfs set|get"); 463 (void) fprintf(fp, 464 gettext("\nFor the delegated permission list, run: %s\n"), 465 "zfs allow|unallow"); 466 } 467 468 /* 469 * See comments at end of main(). 470 */ 471 if (getenv("ZFS_ABORT") != NULL) { 472 (void) printf("dumping core by request\n"); 473 abort(); 474 } 475 476 exit(requested ? 0 : 2); 477 } 478 479 static int 480 parseprop(nvlist_t *props) 481 { 482 char *propname = optarg; 483 char *propval, *strval; 484 485 if ((propval = strchr(propname, '=')) == NULL) { 486 (void) fprintf(stderr, gettext("missing " 487 "'=' for -o option\n")); 488 return (-1); 489 } 490 *propval = '\0'; 491 propval++; 492 if (nvlist_lookup_string(props, propname, &strval) == 0) { 493 (void) fprintf(stderr, gettext("property '%s' " 494 "specified multiple times\n"), propname); 495 return (-1); 496 } 497 if (nvlist_add_string(props, propname, propval) != 0) 498 nomem(); 499 return (0); 500 } 501 502 static int 503 parse_depth(char *opt, int *flags) 504 { 505 char *tmp; 506 int depth; 507 508 depth = (int)strtol(opt, &tmp, 0); 509 if (*tmp) { 510 (void) fprintf(stderr, 511 gettext("%s is not an integer\n"), optarg); 512 usage(B_FALSE); 513 } 514 if (depth < 0) { 515 (void) fprintf(stderr, 516 gettext("Depth can not be negative.\n")); 517 usage(B_FALSE); 518 } 519 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 520 return (depth); 521 } 522 523 #define PROGRESS_DELAY 2 /* seconds */ 524 525 static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; 526 static time_t pt_begin; 527 static char *pt_header = NULL; 528 static boolean_t pt_shown; 529 530 static void 531 start_progress_timer(void) 532 { 533 pt_begin = time(NULL) + PROGRESS_DELAY; 534 pt_shown = B_FALSE; 535 } 536 537 static void 538 set_progress_header(char *header) 539 { 540 assert(pt_header == NULL); 541 pt_header = safe_strdup(header); 542 if (pt_shown) { 543 (void) printf("%s: ", header); 544 (void) fflush(stdout); 545 } 546 } 547 548 static void 549 update_progress(char *update) 550 { 551 if (!pt_shown && time(NULL) > pt_begin) { 552 int len = strlen(update); 553 554 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 555 pt_reverse); 556 (void) fflush(stdout); 557 pt_shown = B_TRUE; 558 } else if (pt_shown) { 559 int len = strlen(update); 560 561 (void) printf("%s%*.*s", update, len, len, pt_reverse); 562 (void) fflush(stdout); 563 } 564 } 565 566 static void 567 finish_progress(char *done) 568 { 569 if (pt_shown) { 570 (void) printf("%s\n", done); 571 (void) fflush(stdout); 572 } 573 free(pt_header); 574 pt_header = NULL; 575 } 576 /* 577 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 578 * 579 * Given an existing dataset, create a writable copy whose initial contents 580 * are the same as the source. The newly created dataset maintains a 581 * dependency on the original; the original cannot be destroyed so long as 582 * the clone exists. 583 * 584 * The '-p' flag creates all the non-existing ancestors of the target first. 585 */ 586 static int 587 zfs_do_clone(int argc, char **argv) 588 { 589 zfs_handle_t *zhp = NULL; 590 boolean_t parents = B_FALSE; 591 nvlist_t *props; 592 int ret = 0; 593 int c; 594 595 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 596 nomem(); 597 598 /* check options */ 599 while ((c = getopt(argc, argv, "o:p")) != -1) { 600 switch (c) { 601 case 'o': 602 if (parseprop(props)) 603 return (1); 604 break; 605 case 'p': 606 parents = B_TRUE; 607 break; 608 case '?': 609 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 610 optopt); 611 goto usage; 612 } 613 } 614 615 argc -= optind; 616 argv += optind; 617 618 /* check number of arguments */ 619 if (argc < 1) { 620 (void) fprintf(stderr, gettext("missing source dataset " 621 "argument\n")); 622 goto usage; 623 } 624 if (argc < 2) { 625 (void) fprintf(stderr, gettext("missing target dataset " 626 "argument\n")); 627 goto usage; 628 } 629 if (argc > 2) { 630 (void) fprintf(stderr, gettext("too many arguments\n")); 631 goto usage; 632 } 633 634 /* open the source dataset */ 635 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 636 return (1); 637 638 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 639 ZFS_TYPE_VOLUME)) { 640 /* 641 * Now create the ancestors of the target dataset. If the 642 * target already exists and '-p' option was used we should not 643 * complain. 644 */ 645 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 646 ZFS_TYPE_VOLUME)) 647 return (0); 648 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 649 return (1); 650 } 651 652 /* pass to libzfs */ 653 ret = zfs_clone(zhp, argv[1], props); 654 655 /* create the mountpoint if necessary */ 656 if (ret == 0) { 657 zfs_handle_t *clone; 658 659 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 660 if (clone != NULL) { 661 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 662 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 663 ret = zfs_share(clone); 664 zfs_close(clone); 665 } 666 } 667 668 zfs_close(zhp); 669 nvlist_free(props); 670 671 return (!!ret); 672 673 usage: 674 if (zhp) 675 zfs_close(zhp); 676 nvlist_free(props); 677 usage(B_FALSE); 678 return (-1); 679 } 680 681 /* 682 * zfs create [-p] [-o prop=value] ... fs 683 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 684 * 685 * Create a new dataset. This command can be used to create filesystems 686 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 687 * For volumes, the user must specify a size to be used. 688 * 689 * The '-s' flag applies only to volumes, and indicates that we should not try 690 * to set the reservation for this volume. By default we set a reservation 691 * equal to the size for any volume. For pools with SPA_VERSION >= 692 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 693 * 694 * The '-p' flag creates all the non-existing ancestors of the target first. 695 */ 696 static int 697 zfs_do_create(int argc, char **argv) 698 { 699 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 700 zfs_handle_t *zhp = NULL; 701 uint64_t volsize; 702 int c; 703 boolean_t noreserve = B_FALSE; 704 boolean_t bflag = B_FALSE; 705 boolean_t parents = B_FALSE; 706 int ret = 1; 707 nvlist_t *props; 708 uint64_t intval; 709 int canmount = ZFS_CANMOUNT_OFF; 710 711 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 712 nomem(); 713 714 /* check options */ 715 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 716 switch (c) { 717 case 'V': 718 type = ZFS_TYPE_VOLUME; 719 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 720 (void) fprintf(stderr, gettext("bad volume " 721 "size '%s': %s\n"), optarg, 722 libzfs_error_description(g_zfs)); 723 goto error; 724 } 725 726 if (nvlist_add_uint64(props, 727 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 728 nomem(); 729 volsize = intval; 730 break; 731 case 'p': 732 parents = B_TRUE; 733 break; 734 case 'b': 735 bflag = B_TRUE; 736 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 737 (void) fprintf(stderr, gettext("bad volume " 738 "block size '%s': %s\n"), optarg, 739 libzfs_error_description(g_zfs)); 740 goto error; 741 } 742 743 if (nvlist_add_uint64(props, 744 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 745 intval) != 0) 746 nomem(); 747 break; 748 case 'o': 749 if (parseprop(props)) 750 goto error; 751 break; 752 case 's': 753 noreserve = B_TRUE; 754 break; 755 case ':': 756 (void) fprintf(stderr, gettext("missing size " 757 "argument\n")); 758 goto badusage; 759 case '?': 760 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 761 optopt); 762 goto badusage; 763 } 764 } 765 766 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 767 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 768 "used when creating a volume\n")); 769 goto badusage; 770 } 771 772 argc -= optind; 773 argv += optind; 774 775 /* check number of arguments */ 776 if (argc == 0) { 777 (void) fprintf(stderr, gettext("missing %s argument\n"), 778 zfs_type_to_name(type)); 779 goto badusage; 780 } 781 if (argc > 1) { 782 (void) fprintf(stderr, gettext("too many arguments\n")); 783 goto badusage; 784 } 785 786 if (type == ZFS_TYPE_VOLUME && !noreserve) { 787 zpool_handle_t *zpool_handle; 788 nvlist_t *real_props; 789 uint64_t spa_version; 790 char *p; 791 zfs_prop_t resv_prop; 792 char *strval; 793 char msg[1024]; 794 795 if (p = strchr(argv[0], '/')) 796 *p = '\0'; 797 zpool_handle = zpool_open(g_zfs, argv[0]); 798 if (p != NULL) 799 *p = '/'; 800 if (zpool_handle == NULL) 801 goto error; 802 spa_version = zpool_get_prop_int(zpool_handle, 803 ZPOOL_PROP_VERSION, NULL); 804 zpool_close(zpool_handle); 805 if (spa_version >= SPA_VERSION_REFRESERVATION) 806 resv_prop = ZFS_PROP_REFRESERVATION; 807 else 808 resv_prop = ZFS_PROP_RESERVATION; 809 810 (void) snprintf(msg, sizeof (msg), 811 gettext("cannot create '%s'"), argv[0]); 812 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 813 props, 0, NULL, msg)) == NULL) 814 goto error; 815 816 volsize = zvol_volsize_to_reservation(volsize, real_props); 817 nvlist_free(real_props); 818 819 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 820 &strval) != 0) { 821 if (nvlist_add_uint64(props, 822 zfs_prop_to_name(resv_prop), volsize) != 0) { 823 nvlist_free(props); 824 nomem(); 825 } 826 } 827 } 828 829 if (parents && zfs_name_valid(argv[0], type)) { 830 /* 831 * Now create the ancestors of target dataset. If the target 832 * already exists and '-p' option was used we should not 833 * complain. 834 */ 835 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 836 ret = 0; 837 goto error; 838 } 839 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 840 goto error; 841 } 842 843 /* pass to libzfs */ 844 if (zfs_create(g_zfs, argv[0], type, props) != 0) 845 goto error; 846 847 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 848 goto error; 849 850 ret = 0; 851 /* 852 * if the user doesn't want the dataset automatically mounted, 853 * then skip the mount/share step 854 */ 855 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 856 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 857 858 /* 859 * Mount and/or share the new filesystem as appropriate. We provide a 860 * verbose error message to let the user know that their filesystem was 861 * in fact created, even if we failed to mount or share it. 862 */ 863 if (canmount == ZFS_CANMOUNT_ON) { 864 if (zfs_mount(zhp, NULL, 0) != 0) { 865 (void) fprintf(stderr, gettext("filesystem " 866 "successfully created, but not mounted\n")); 867 ret = 1; 868 } else if (zfs_share(zhp) != 0) { 869 (void) fprintf(stderr, gettext("filesystem " 870 "successfully created, but not shared\n")); 871 ret = 1; 872 } 873 } 874 875 error: 876 if (zhp) 877 zfs_close(zhp); 878 nvlist_free(props); 879 return (ret); 880 badusage: 881 nvlist_free(props); 882 usage(B_FALSE); 883 return (2); 884 } 885 886 /* 887 * zfs destroy [-rRf] <fs, vol> 888 * zfs destroy [-rRd] <snap> 889 * 890 * -r Recursively destroy all children 891 * -R Recursively destroy all dependents, including clones 892 * -f Force unmounting of any dependents 893 * -d If we can't destroy now, mark for deferred destruction 894 * 895 * Destroys the given dataset. By default, it will unmount any filesystems, 896 * and refuse to destroy a dataset that has any dependents. A dependent can 897 * either be a child, or a clone of a child. 898 */ 899 typedef struct destroy_cbdata { 900 boolean_t cb_first; 901 boolean_t cb_force; 902 boolean_t cb_recurse; 903 boolean_t cb_error; 904 boolean_t cb_doclones; 905 zfs_handle_t *cb_target; 906 boolean_t cb_defer_destroy; 907 boolean_t cb_verbose; 908 boolean_t cb_parsable; 909 boolean_t cb_dryrun; 910 nvlist_t *cb_nvl; 911 nvlist_t *cb_batchedsnaps; 912 913 /* first snap in contiguous run */ 914 char *cb_firstsnap; 915 /* previous snap in contiguous run */ 916 char *cb_prevsnap; 917 int64_t cb_snapused; 918 char *cb_snapspec; 919 char *cb_bookmark; 920 } destroy_cbdata_t; 921 922 /* 923 * Check for any dependents based on the '-r' or '-R' flags. 924 */ 925 static int 926 destroy_check_dependent(zfs_handle_t *zhp, void *data) 927 { 928 destroy_cbdata_t *cbp = data; 929 const char *tname = zfs_get_name(cbp->cb_target); 930 const char *name = zfs_get_name(zhp); 931 932 if (strncmp(tname, name, strlen(tname)) == 0 && 933 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 934 /* 935 * This is a direct descendant, not a clone somewhere else in 936 * the hierarchy. 937 */ 938 if (cbp->cb_recurse) 939 goto out; 940 941 if (cbp->cb_first) { 942 (void) fprintf(stderr, gettext("cannot destroy '%s': " 943 "%s has children\n"), 944 zfs_get_name(cbp->cb_target), 945 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 946 (void) fprintf(stderr, gettext("use '-r' to destroy " 947 "the following datasets:\n")); 948 cbp->cb_first = B_FALSE; 949 cbp->cb_error = B_TRUE; 950 } 951 952 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 953 } else { 954 /* 955 * This is a clone. We only want to report this if the '-r' 956 * wasn't specified, or the target is a snapshot. 957 */ 958 if (!cbp->cb_recurse && 959 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 960 goto out; 961 962 if (cbp->cb_first) { 963 (void) fprintf(stderr, gettext("cannot destroy '%s': " 964 "%s has dependent clones\n"), 965 zfs_get_name(cbp->cb_target), 966 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 967 (void) fprintf(stderr, gettext("use '-R' to destroy " 968 "the following datasets:\n")); 969 cbp->cb_first = B_FALSE; 970 cbp->cb_error = B_TRUE; 971 cbp->cb_dryrun = B_TRUE; 972 } 973 974 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 975 } 976 977 out: 978 zfs_close(zhp); 979 return (0); 980 } 981 982 static int 983 destroy_callback(zfs_handle_t *zhp, void *data) 984 { 985 destroy_cbdata_t *cb = data; 986 const char *name = zfs_get_name(zhp); 987 988 if (cb->cb_verbose) { 989 if (cb->cb_parsable) { 990 (void) printf("destroy\t%s\n", name); 991 } else if (cb->cb_dryrun) { 992 (void) printf(gettext("would destroy %s\n"), 993 name); 994 } else { 995 (void) printf(gettext("will destroy %s\n"), 996 name); 997 } 998 } 999 1000 /* 1001 * Ignore pools (which we've already flagged as an error before getting 1002 * here). 1003 */ 1004 if (strchr(zfs_get_name(zhp), '/') == NULL && 1005 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1006 zfs_close(zhp); 1007 return (0); 1008 } 1009 if (cb->cb_dryrun) { 1010 zfs_close(zhp); 1011 return (0); 1012 } 1013 1014 /* 1015 * We batch up all contiguous snapshots (even of different 1016 * filesystems) and destroy them with one ioctl. We can't 1017 * simply do all snap deletions and then all fs deletions, 1018 * because we must delete a clone before its origin. 1019 */ 1020 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1021 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1022 } else { 1023 int error = zfs_destroy_snaps_nvl(g_zfs, 1024 cb->cb_batchedsnaps, B_FALSE); 1025 fnvlist_free(cb->cb_batchedsnaps); 1026 cb->cb_batchedsnaps = fnvlist_alloc(); 1027 1028 if (error != 0 || 1029 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1030 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1031 zfs_close(zhp); 1032 return (-1); 1033 } 1034 } 1035 1036 zfs_close(zhp); 1037 return (0); 1038 } 1039 1040 static int 1041 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1042 { 1043 destroy_cbdata_t *cb = arg; 1044 const char *name = zfs_get_name(zhp); 1045 int err = 0; 1046 1047 if (nvlist_exists(cb->cb_nvl, name)) { 1048 if (cb->cb_firstsnap == NULL) 1049 cb->cb_firstsnap = strdup(name); 1050 if (cb->cb_prevsnap != NULL) 1051 free(cb->cb_prevsnap); 1052 /* this snap continues the current range */ 1053 cb->cb_prevsnap = strdup(name); 1054 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1055 nomem(); 1056 if (cb->cb_verbose) { 1057 if (cb->cb_parsable) { 1058 (void) printf("destroy\t%s\n", name); 1059 } else if (cb->cb_dryrun) { 1060 (void) printf(gettext("would destroy %s\n"), 1061 name); 1062 } else { 1063 (void) printf(gettext("will destroy %s\n"), 1064 name); 1065 } 1066 } 1067 } else if (cb->cb_firstsnap != NULL) { 1068 /* end of this range */ 1069 uint64_t used = 0; 1070 err = lzc_snaprange_space(cb->cb_firstsnap, 1071 cb->cb_prevsnap, &used); 1072 cb->cb_snapused += used; 1073 free(cb->cb_firstsnap); 1074 cb->cb_firstsnap = NULL; 1075 free(cb->cb_prevsnap); 1076 cb->cb_prevsnap = NULL; 1077 } 1078 zfs_close(zhp); 1079 return (err); 1080 } 1081 1082 static int 1083 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1084 { 1085 int err = 0; 1086 assert(cb->cb_firstsnap == NULL); 1087 assert(cb->cb_prevsnap == NULL); 1088 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1089 if (cb->cb_firstsnap != NULL) { 1090 uint64_t used = 0; 1091 if (err == 0) { 1092 err = lzc_snaprange_space(cb->cb_firstsnap, 1093 cb->cb_prevsnap, &used); 1094 } 1095 cb->cb_snapused += used; 1096 free(cb->cb_firstsnap); 1097 cb->cb_firstsnap = NULL; 1098 free(cb->cb_prevsnap); 1099 cb->cb_prevsnap = NULL; 1100 } 1101 return (err); 1102 } 1103 1104 static int 1105 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1106 { 1107 destroy_cbdata_t *cb = arg; 1108 int err = 0; 1109 1110 /* Check for clones. */ 1111 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1112 cb->cb_target = zhp; 1113 cb->cb_first = B_TRUE; 1114 err = zfs_iter_dependents(zhp, B_TRUE, 1115 destroy_check_dependent, cb); 1116 } 1117 1118 if (err == 0) { 1119 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1120 nomem(); 1121 } 1122 zfs_close(zhp); 1123 return (err); 1124 } 1125 1126 static int 1127 gather_snapshots(zfs_handle_t *zhp, void *arg) 1128 { 1129 destroy_cbdata_t *cb = arg; 1130 int err = 0; 1131 1132 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1133 if (err == ENOENT) 1134 err = 0; 1135 if (err != 0) 1136 goto out; 1137 1138 if (cb->cb_verbose) { 1139 err = destroy_print_snapshots(zhp, cb); 1140 if (err != 0) 1141 goto out; 1142 } 1143 1144 if (cb->cb_recurse) 1145 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1146 1147 out: 1148 zfs_close(zhp); 1149 return (err); 1150 } 1151 1152 static int 1153 destroy_clones(destroy_cbdata_t *cb) 1154 { 1155 nvpair_t *pair; 1156 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1157 pair != NULL; 1158 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1159 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1160 ZFS_TYPE_SNAPSHOT); 1161 if (zhp != NULL) { 1162 boolean_t defer = cb->cb_defer_destroy; 1163 int err = 0; 1164 1165 /* 1166 * We can't defer destroy non-snapshots, so set it to 1167 * false while destroying the clones. 1168 */ 1169 cb->cb_defer_destroy = B_FALSE; 1170 err = zfs_iter_dependents(zhp, B_FALSE, 1171 destroy_callback, cb); 1172 cb->cb_defer_destroy = defer; 1173 zfs_close(zhp); 1174 if (err != 0) 1175 return (err); 1176 } 1177 } 1178 return (0); 1179 } 1180 1181 static int 1182 zfs_do_destroy(int argc, char **argv) 1183 { 1184 destroy_cbdata_t cb = { 0 }; 1185 int rv = 0; 1186 int err = 0; 1187 int c; 1188 zfs_handle_t *zhp = NULL; 1189 char *at, *pound; 1190 zfs_type_t type = ZFS_TYPE_DATASET; 1191 1192 /* check options */ 1193 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1194 switch (c) { 1195 case 'v': 1196 cb.cb_verbose = B_TRUE; 1197 break; 1198 case 'p': 1199 cb.cb_verbose = B_TRUE; 1200 cb.cb_parsable = B_TRUE; 1201 break; 1202 case 'n': 1203 cb.cb_dryrun = B_TRUE; 1204 break; 1205 case 'd': 1206 cb.cb_defer_destroy = B_TRUE; 1207 type = ZFS_TYPE_SNAPSHOT; 1208 break; 1209 case 'f': 1210 cb.cb_force = B_TRUE; 1211 break; 1212 case 'r': 1213 cb.cb_recurse = B_TRUE; 1214 break; 1215 case 'R': 1216 cb.cb_recurse = B_TRUE; 1217 cb.cb_doclones = B_TRUE; 1218 break; 1219 case '?': 1220 default: 1221 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1222 optopt); 1223 usage(B_FALSE); 1224 } 1225 } 1226 1227 argc -= optind; 1228 argv += optind; 1229 1230 /* check number of arguments */ 1231 if (argc == 0) { 1232 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1233 usage(B_FALSE); 1234 } 1235 if (argc > 1) { 1236 (void) fprintf(stderr, gettext("too many arguments\n")); 1237 usage(B_FALSE); 1238 } 1239 1240 at = strchr(argv[0], '@'); 1241 pound = strchr(argv[0], '#'); 1242 if (at != NULL) { 1243 1244 /* Build the list of snaps to destroy in cb_nvl. */ 1245 cb.cb_nvl = fnvlist_alloc(); 1246 1247 *at = '\0'; 1248 zhp = zfs_open(g_zfs, argv[0], 1249 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1250 if (zhp == NULL) 1251 return (1); 1252 1253 cb.cb_snapspec = at + 1; 1254 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1255 cb.cb_error) { 1256 rv = 1; 1257 goto out; 1258 } 1259 1260 if (nvlist_empty(cb.cb_nvl)) { 1261 (void) fprintf(stderr, gettext("could not find any " 1262 "snapshots to destroy; check snapshot names.\n")); 1263 rv = 1; 1264 goto out; 1265 } 1266 1267 if (cb.cb_verbose) { 1268 char buf[16]; 1269 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1270 if (cb.cb_parsable) { 1271 (void) printf("reclaim\t%llu\n", 1272 cb.cb_snapused); 1273 } else if (cb.cb_dryrun) { 1274 (void) printf(gettext("would reclaim %s\n"), 1275 buf); 1276 } else { 1277 (void) printf(gettext("will reclaim %s\n"), 1278 buf); 1279 } 1280 } 1281 1282 if (!cb.cb_dryrun) { 1283 if (cb.cb_doclones) { 1284 cb.cb_batchedsnaps = fnvlist_alloc(); 1285 err = destroy_clones(&cb); 1286 if (err == 0) { 1287 err = zfs_destroy_snaps_nvl(g_zfs, 1288 cb.cb_batchedsnaps, B_FALSE); 1289 } 1290 if (err != 0) { 1291 rv = 1; 1292 goto out; 1293 } 1294 } 1295 if (err == 0) { 1296 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1297 cb.cb_defer_destroy); 1298 } 1299 } 1300 1301 if (err != 0) 1302 rv = 1; 1303 } else if (pound != NULL) { 1304 int err; 1305 nvlist_t *nvl; 1306 1307 if (cb.cb_dryrun) { 1308 (void) fprintf(stderr, 1309 "dryrun is not supported with bookmark\n"); 1310 return (-1); 1311 } 1312 1313 if (cb.cb_defer_destroy) { 1314 (void) fprintf(stderr, 1315 "defer destroy is not supported with bookmark\n"); 1316 return (-1); 1317 } 1318 1319 if (cb.cb_recurse) { 1320 (void) fprintf(stderr, 1321 "recursive is not supported with bookmark\n"); 1322 return (-1); 1323 } 1324 1325 if (!zfs_bookmark_exists(argv[0])) { 1326 (void) fprintf(stderr, gettext("bookmark '%s' " 1327 "does not exist.\n"), argv[0]); 1328 return (1); 1329 } 1330 1331 nvl = fnvlist_alloc(); 1332 fnvlist_add_boolean(nvl, argv[0]); 1333 1334 err = lzc_destroy_bookmarks(nvl, NULL); 1335 if (err != 0) { 1336 (void) zfs_standard_error(g_zfs, err, 1337 "cannot destroy bookmark"); 1338 } 1339 1340 nvlist_free(cb.cb_nvl); 1341 1342 return (err); 1343 } else { 1344 /* Open the given dataset */ 1345 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1346 return (1); 1347 1348 cb.cb_target = zhp; 1349 1350 /* 1351 * Perform an explicit check for pools before going any further. 1352 */ 1353 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1354 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1355 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1356 "operation does not apply to pools\n"), 1357 zfs_get_name(zhp)); 1358 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1359 "%s' to destroy all datasets in the pool\n"), 1360 zfs_get_name(zhp)); 1361 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1362 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1363 rv = 1; 1364 goto out; 1365 } 1366 1367 /* 1368 * Check for any dependents and/or clones. 1369 */ 1370 cb.cb_first = B_TRUE; 1371 if (!cb.cb_doclones && 1372 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1373 &cb) != 0) { 1374 rv = 1; 1375 goto out; 1376 } 1377 1378 if (cb.cb_error) { 1379 rv = 1; 1380 goto out; 1381 } 1382 1383 cb.cb_batchedsnaps = fnvlist_alloc(); 1384 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1385 &cb) != 0) { 1386 rv = 1; 1387 goto out; 1388 } 1389 1390 /* 1391 * Do the real thing. The callback will close the 1392 * handle regardless of whether it succeeds or not. 1393 */ 1394 err = destroy_callback(zhp, &cb); 1395 zhp = NULL; 1396 if (err == 0) { 1397 err = zfs_destroy_snaps_nvl(g_zfs, 1398 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1399 } 1400 if (err != 0) 1401 rv = 1; 1402 } 1403 1404 out: 1405 fnvlist_free(cb.cb_batchedsnaps); 1406 fnvlist_free(cb.cb_nvl); 1407 if (zhp != NULL) 1408 zfs_close(zhp); 1409 return (rv); 1410 } 1411 1412 static boolean_t 1413 is_recvd_column(zprop_get_cbdata_t *cbp) 1414 { 1415 int i; 1416 zfs_get_column_t col; 1417 1418 for (i = 0; i < ZFS_GET_NCOLS && 1419 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1420 if (col == GET_COL_RECVD) 1421 return (B_TRUE); 1422 return (B_FALSE); 1423 } 1424 1425 /* 1426 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1427 * < all | property[,property]... > < fs | snap | vol > ... 1428 * 1429 * -r recurse over any child datasets 1430 * -H scripted mode. Headers are stripped, and fields are separated 1431 * by tabs instead of spaces. 1432 * -o Set of fields to display. One of "name,property,value, 1433 * received,source". Default is "name,property,value,source". 1434 * "all" is an alias for all five. 1435 * -s Set of sources to allow. One of 1436 * "local,default,inherited,received,temporary,none". Default is 1437 * all six. 1438 * -p Display values in parsable (literal) format. 1439 * 1440 * Prints properties for the given datasets. The user can control which 1441 * columns to display as well as which property types to allow. 1442 */ 1443 1444 /* 1445 * Invoked to display the properties for a single dataset. 1446 */ 1447 static int 1448 get_callback(zfs_handle_t *zhp, void *data) 1449 { 1450 char buf[ZFS_MAXPROPLEN]; 1451 char rbuf[ZFS_MAXPROPLEN]; 1452 zprop_source_t sourcetype; 1453 char source[ZFS_MAXNAMELEN]; 1454 zprop_get_cbdata_t *cbp = data; 1455 nvlist_t *user_props = zfs_get_user_props(zhp); 1456 zprop_list_t *pl = cbp->cb_proplist; 1457 nvlist_t *propval; 1458 char *strval; 1459 char *sourceval; 1460 boolean_t received = is_recvd_column(cbp); 1461 1462 for (; pl != NULL; pl = pl->pl_next) { 1463 char *recvdval = NULL; 1464 /* 1465 * Skip the special fake placeholder. This will also skip over 1466 * the name property when 'all' is specified. 1467 */ 1468 if (pl->pl_prop == ZFS_PROP_NAME && 1469 pl == cbp->cb_proplist) 1470 continue; 1471 1472 if (pl->pl_prop != ZPROP_INVAL) { 1473 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1474 sizeof (buf), &sourcetype, source, 1475 sizeof (source), 1476 cbp->cb_literal) != 0) { 1477 if (pl->pl_all) 1478 continue; 1479 if (!zfs_prop_valid_for_type(pl->pl_prop, 1480 ZFS_TYPE_DATASET)) { 1481 (void) fprintf(stderr, 1482 gettext("No such property '%s'\n"), 1483 zfs_prop_to_name(pl->pl_prop)); 1484 continue; 1485 } 1486 sourcetype = ZPROP_SRC_NONE; 1487 (void) strlcpy(buf, "-", sizeof (buf)); 1488 } 1489 1490 if (received && (zfs_prop_get_recvd(zhp, 1491 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1492 cbp->cb_literal) == 0)) 1493 recvdval = rbuf; 1494 1495 zprop_print_one_property(zfs_get_name(zhp), cbp, 1496 zfs_prop_to_name(pl->pl_prop), 1497 buf, sourcetype, source, recvdval); 1498 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1499 sourcetype = ZPROP_SRC_LOCAL; 1500 1501 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1502 buf, sizeof (buf), cbp->cb_literal) != 0) { 1503 sourcetype = ZPROP_SRC_NONE; 1504 (void) strlcpy(buf, "-", sizeof (buf)); 1505 } 1506 1507 zprop_print_one_property(zfs_get_name(zhp), cbp, 1508 pl->pl_user_prop, buf, sourcetype, source, NULL); 1509 } else if (zfs_prop_written(pl->pl_user_prop)) { 1510 sourcetype = ZPROP_SRC_LOCAL; 1511 1512 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1513 buf, sizeof (buf), cbp->cb_literal) != 0) { 1514 sourcetype = ZPROP_SRC_NONE; 1515 (void) strlcpy(buf, "-", sizeof (buf)); 1516 } 1517 1518 zprop_print_one_property(zfs_get_name(zhp), cbp, 1519 pl->pl_user_prop, buf, sourcetype, source, NULL); 1520 } else { 1521 if (nvlist_lookup_nvlist(user_props, 1522 pl->pl_user_prop, &propval) != 0) { 1523 if (pl->pl_all) 1524 continue; 1525 sourcetype = ZPROP_SRC_NONE; 1526 strval = "-"; 1527 } else { 1528 verify(nvlist_lookup_string(propval, 1529 ZPROP_VALUE, &strval) == 0); 1530 verify(nvlist_lookup_string(propval, 1531 ZPROP_SOURCE, &sourceval) == 0); 1532 1533 if (strcmp(sourceval, 1534 zfs_get_name(zhp)) == 0) { 1535 sourcetype = ZPROP_SRC_LOCAL; 1536 } else if (strcmp(sourceval, 1537 ZPROP_SOURCE_VAL_RECVD) == 0) { 1538 sourcetype = ZPROP_SRC_RECEIVED; 1539 } else { 1540 sourcetype = ZPROP_SRC_INHERITED; 1541 (void) strlcpy(source, 1542 sourceval, sizeof (source)); 1543 } 1544 } 1545 1546 if (received && (zfs_prop_get_recvd(zhp, 1547 pl->pl_user_prop, rbuf, sizeof (rbuf), 1548 cbp->cb_literal) == 0)) 1549 recvdval = rbuf; 1550 1551 zprop_print_one_property(zfs_get_name(zhp), cbp, 1552 pl->pl_user_prop, strval, sourcetype, 1553 source, recvdval); 1554 } 1555 } 1556 1557 return (0); 1558 } 1559 1560 static int 1561 zfs_do_get(int argc, char **argv) 1562 { 1563 zprop_get_cbdata_t cb = { 0 }; 1564 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1565 int types = ZFS_TYPE_DATASET; 1566 char *value, *fields; 1567 int ret = 0; 1568 int limit = 0; 1569 zprop_list_t fake_name = { 0 }; 1570 1571 /* 1572 * Set up default columns and sources. 1573 */ 1574 cb.cb_sources = ZPROP_SRC_ALL; 1575 cb.cb_columns[0] = GET_COL_NAME; 1576 cb.cb_columns[1] = GET_COL_PROPERTY; 1577 cb.cb_columns[2] = GET_COL_VALUE; 1578 cb.cb_columns[3] = GET_COL_SOURCE; 1579 cb.cb_type = ZFS_TYPE_DATASET; 1580 1581 /* check options */ 1582 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1583 switch (c) { 1584 case 'p': 1585 cb.cb_literal = B_TRUE; 1586 break; 1587 case 'd': 1588 limit = parse_depth(optarg, &flags); 1589 break; 1590 case 'r': 1591 flags |= ZFS_ITER_RECURSE; 1592 break; 1593 case 'H': 1594 cb.cb_scripted = B_TRUE; 1595 break; 1596 case ':': 1597 (void) fprintf(stderr, gettext("missing argument for " 1598 "'%c' option\n"), optopt); 1599 usage(B_FALSE); 1600 break; 1601 case 'o': 1602 /* 1603 * Process the set of columns to display. We zero out 1604 * the structure to give us a blank slate. 1605 */ 1606 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1607 i = 0; 1608 while (*optarg != '\0') { 1609 static char *col_subopts[] = 1610 { "name", "property", "value", "received", 1611 "source", "all", NULL }; 1612 1613 if (i == ZFS_GET_NCOLS) { 1614 (void) fprintf(stderr, gettext("too " 1615 "many fields given to -o " 1616 "option\n")); 1617 usage(B_FALSE); 1618 } 1619 1620 switch (getsubopt(&optarg, col_subopts, 1621 &value)) { 1622 case 0: 1623 cb.cb_columns[i++] = GET_COL_NAME; 1624 break; 1625 case 1: 1626 cb.cb_columns[i++] = GET_COL_PROPERTY; 1627 break; 1628 case 2: 1629 cb.cb_columns[i++] = GET_COL_VALUE; 1630 break; 1631 case 3: 1632 cb.cb_columns[i++] = GET_COL_RECVD; 1633 flags |= ZFS_ITER_RECVD_PROPS; 1634 break; 1635 case 4: 1636 cb.cb_columns[i++] = GET_COL_SOURCE; 1637 break; 1638 case 5: 1639 if (i > 0) { 1640 (void) fprintf(stderr, 1641 gettext("\"all\" conflicts " 1642 "with specific fields " 1643 "given to -o option\n")); 1644 usage(B_FALSE); 1645 } 1646 cb.cb_columns[0] = GET_COL_NAME; 1647 cb.cb_columns[1] = GET_COL_PROPERTY; 1648 cb.cb_columns[2] = GET_COL_VALUE; 1649 cb.cb_columns[3] = GET_COL_RECVD; 1650 cb.cb_columns[4] = GET_COL_SOURCE; 1651 flags |= ZFS_ITER_RECVD_PROPS; 1652 i = ZFS_GET_NCOLS; 1653 break; 1654 default: 1655 (void) fprintf(stderr, 1656 gettext("invalid column name " 1657 "'%s'\n"), value); 1658 usage(B_FALSE); 1659 } 1660 } 1661 break; 1662 1663 case 's': 1664 cb.cb_sources = 0; 1665 while (*optarg != '\0') { 1666 static char *source_subopts[] = { 1667 "local", "default", "inherited", 1668 "received", "temporary", "none", 1669 NULL }; 1670 1671 switch (getsubopt(&optarg, source_subopts, 1672 &value)) { 1673 case 0: 1674 cb.cb_sources |= ZPROP_SRC_LOCAL; 1675 break; 1676 case 1: 1677 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1678 break; 1679 case 2: 1680 cb.cb_sources |= ZPROP_SRC_INHERITED; 1681 break; 1682 case 3: 1683 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1684 break; 1685 case 4: 1686 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1687 break; 1688 case 5: 1689 cb.cb_sources |= ZPROP_SRC_NONE; 1690 break; 1691 default: 1692 (void) fprintf(stderr, 1693 gettext("invalid source " 1694 "'%s'\n"), value); 1695 usage(B_FALSE); 1696 } 1697 } 1698 break; 1699 1700 case 't': 1701 types = 0; 1702 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1703 while (*optarg != '\0') { 1704 static char *type_subopts[] = { "filesystem", 1705 "volume", "snapshot", "bookmark", 1706 "all", NULL }; 1707 1708 switch (getsubopt(&optarg, type_subopts, 1709 &value)) { 1710 case 0: 1711 types |= ZFS_TYPE_FILESYSTEM; 1712 break; 1713 case 1: 1714 types |= ZFS_TYPE_VOLUME; 1715 break; 1716 case 2: 1717 types |= ZFS_TYPE_SNAPSHOT; 1718 break; 1719 case 3: 1720 types |= ZFS_TYPE_BOOKMARK; 1721 break; 1722 case 4: 1723 types = ZFS_TYPE_DATASET | 1724 ZFS_TYPE_BOOKMARK; 1725 break; 1726 1727 default: 1728 (void) fprintf(stderr, 1729 gettext("invalid type '%s'\n"), 1730 value); 1731 usage(B_FALSE); 1732 } 1733 } 1734 break; 1735 1736 case '?': 1737 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1738 optopt); 1739 usage(B_FALSE); 1740 } 1741 } 1742 1743 argc -= optind; 1744 argv += optind; 1745 1746 if (argc < 1) { 1747 (void) fprintf(stderr, gettext("missing property " 1748 "argument\n")); 1749 usage(B_FALSE); 1750 } 1751 1752 fields = argv[0]; 1753 1754 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1755 != 0) 1756 usage(B_FALSE); 1757 1758 argc--; 1759 argv++; 1760 1761 /* 1762 * As part of zfs_expand_proplist(), we keep track of the maximum column 1763 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1764 * need to know the maximum name length. However, the user likely did 1765 * not specify 'name' as one of the properties to fetch, so we need to 1766 * make sure we always include at least this property for 1767 * print_get_headers() to work properly. 1768 */ 1769 if (cb.cb_proplist != NULL) { 1770 fake_name.pl_prop = ZFS_PROP_NAME; 1771 fake_name.pl_width = strlen(gettext("NAME")); 1772 fake_name.pl_next = cb.cb_proplist; 1773 cb.cb_proplist = &fake_name; 1774 } 1775 1776 cb.cb_first = B_TRUE; 1777 1778 /* run for each object */ 1779 ret = zfs_for_each(argc, argv, flags, types, NULL, 1780 &cb.cb_proplist, limit, get_callback, &cb); 1781 1782 if (cb.cb_proplist == &fake_name) 1783 zprop_free_list(fake_name.pl_next); 1784 else 1785 zprop_free_list(cb.cb_proplist); 1786 1787 return (ret); 1788 } 1789 1790 /* 1791 * inherit [-rS] <property> <fs|vol> ... 1792 * 1793 * -r Recurse over all children 1794 * -S Revert to received value, if any 1795 * 1796 * For each dataset specified on the command line, inherit the given property 1797 * from its parent. Inheriting a property at the pool level will cause it to 1798 * use the default value. The '-r' flag will recurse over all children, and is 1799 * useful for setting a property on a hierarchy-wide basis, regardless of any 1800 * local modifications for each dataset. 1801 */ 1802 1803 typedef struct inherit_cbdata { 1804 const char *cb_propname; 1805 boolean_t cb_received; 1806 } inherit_cbdata_t; 1807 1808 static int 1809 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1810 { 1811 inherit_cbdata_t *cb = data; 1812 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1813 1814 /* 1815 * If we're doing it recursively, then ignore properties that 1816 * are not valid for this type of dataset. 1817 */ 1818 if (prop != ZPROP_INVAL && 1819 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1820 return (0); 1821 1822 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1823 } 1824 1825 static int 1826 inherit_cb(zfs_handle_t *zhp, void *data) 1827 { 1828 inherit_cbdata_t *cb = data; 1829 1830 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1831 } 1832 1833 static int 1834 zfs_do_inherit(int argc, char **argv) 1835 { 1836 int c; 1837 zfs_prop_t prop; 1838 inherit_cbdata_t cb = { 0 }; 1839 char *propname; 1840 int ret = 0; 1841 int flags = 0; 1842 boolean_t received = B_FALSE; 1843 1844 /* check options */ 1845 while ((c = getopt(argc, argv, "rS")) != -1) { 1846 switch (c) { 1847 case 'r': 1848 flags |= ZFS_ITER_RECURSE; 1849 break; 1850 case 'S': 1851 received = B_TRUE; 1852 break; 1853 case '?': 1854 default: 1855 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1856 optopt); 1857 usage(B_FALSE); 1858 } 1859 } 1860 1861 argc -= optind; 1862 argv += optind; 1863 1864 /* check number of arguments */ 1865 if (argc < 1) { 1866 (void) fprintf(stderr, gettext("missing property argument\n")); 1867 usage(B_FALSE); 1868 } 1869 if (argc < 2) { 1870 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1871 usage(B_FALSE); 1872 } 1873 1874 propname = argv[0]; 1875 argc--; 1876 argv++; 1877 1878 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1879 if (zfs_prop_readonly(prop)) { 1880 (void) fprintf(stderr, gettext( 1881 "%s property is read-only\n"), 1882 propname); 1883 return (1); 1884 } 1885 if (!zfs_prop_inheritable(prop) && !received) { 1886 (void) fprintf(stderr, gettext("'%s' property cannot " 1887 "be inherited\n"), propname); 1888 if (prop == ZFS_PROP_QUOTA || 1889 prop == ZFS_PROP_RESERVATION || 1890 prop == ZFS_PROP_REFQUOTA || 1891 prop == ZFS_PROP_REFRESERVATION) 1892 (void) fprintf(stderr, gettext("use 'zfs set " 1893 "%s=none' to clear\n"), propname); 1894 return (1); 1895 } 1896 if (received && (prop == ZFS_PROP_VOLSIZE || 1897 prop == ZFS_PROP_VERSION)) { 1898 (void) fprintf(stderr, gettext("'%s' property cannot " 1899 "be reverted to a received value\n"), propname); 1900 return (1); 1901 } 1902 } else if (!zfs_prop_user(propname)) { 1903 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1904 propname); 1905 usage(B_FALSE); 1906 } 1907 1908 cb.cb_propname = propname; 1909 cb.cb_received = received; 1910 1911 if (flags & ZFS_ITER_RECURSE) { 1912 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1913 NULL, NULL, 0, inherit_recurse_cb, &cb); 1914 } else { 1915 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1916 NULL, NULL, 0, inherit_cb, &cb); 1917 } 1918 1919 return (ret); 1920 } 1921 1922 typedef struct upgrade_cbdata { 1923 uint64_t cb_numupgraded; 1924 uint64_t cb_numsamegraded; 1925 uint64_t cb_numfailed; 1926 uint64_t cb_version; 1927 boolean_t cb_newer; 1928 boolean_t cb_foundone; 1929 char cb_lastfs[ZFS_MAXNAMELEN]; 1930 } upgrade_cbdata_t; 1931 1932 static int 1933 same_pool(zfs_handle_t *zhp, const char *name) 1934 { 1935 int len1 = strcspn(name, "/@"); 1936 const char *zhname = zfs_get_name(zhp); 1937 int len2 = strcspn(zhname, "/@"); 1938 1939 if (len1 != len2) 1940 return (B_FALSE); 1941 return (strncmp(name, zhname, len1) == 0); 1942 } 1943 1944 static int 1945 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1946 { 1947 upgrade_cbdata_t *cb = data; 1948 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1949 1950 /* list if it's old/new */ 1951 if ((!cb->cb_newer && version < ZPL_VERSION) || 1952 (cb->cb_newer && version > ZPL_VERSION)) { 1953 char *str; 1954 if (cb->cb_newer) { 1955 str = gettext("The following filesystems are " 1956 "formatted using a newer software version and\n" 1957 "cannot be accessed on the current system.\n\n"); 1958 } else { 1959 str = gettext("The following filesystems are " 1960 "out of date, and can be upgraded. After being\n" 1961 "upgraded, these filesystems (and any 'zfs send' " 1962 "streams generated from\n" 1963 "subsequent snapshots) will no longer be " 1964 "accessible by older software versions.\n\n"); 1965 } 1966 1967 if (!cb->cb_foundone) { 1968 (void) puts(str); 1969 (void) printf(gettext("VER FILESYSTEM\n")); 1970 (void) printf(gettext("--- ------------\n")); 1971 cb->cb_foundone = B_TRUE; 1972 } 1973 1974 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1975 } 1976 1977 return (0); 1978 } 1979 1980 static int 1981 upgrade_set_callback(zfs_handle_t *zhp, void *data) 1982 { 1983 upgrade_cbdata_t *cb = data; 1984 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1985 int needed_spa_version; 1986 int spa_version; 1987 1988 if (zfs_spa_version(zhp, &spa_version) < 0) 1989 return (-1); 1990 1991 needed_spa_version = zfs_spa_version_map(cb->cb_version); 1992 1993 if (needed_spa_version < 0) 1994 return (-1); 1995 1996 if (spa_version < needed_spa_version) { 1997 /* can't upgrade */ 1998 (void) printf(gettext("%s: can not be " 1999 "upgraded; the pool version needs to first " 2000 "be upgraded\nto version %d\n\n"), 2001 zfs_get_name(zhp), needed_spa_version); 2002 cb->cb_numfailed++; 2003 return (0); 2004 } 2005 2006 /* upgrade */ 2007 if (version < cb->cb_version) { 2008 char verstr[16]; 2009 (void) snprintf(verstr, sizeof (verstr), 2010 "%llu", cb->cb_version); 2011 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2012 /* 2013 * If they did "zfs upgrade -a", then we could 2014 * be doing ioctls to different pools. We need 2015 * to log this history once to each pool, and bypass 2016 * the normal history logging that happens in main(). 2017 */ 2018 (void) zpool_log_history(g_zfs, history_str); 2019 log_history = B_FALSE; 2020 } 2021 if (zfs_prop_set(zhp, "version", verstr) == 0) 2022 cb->cb_numupgraded++; 2023 else 2024 cb->cb_numfailed++; 2025 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2026 } else if (version > cb->cb_version) { 2027 /* can't downgrade */ 2028 (void) printf(gettext("%s: can not be downgraded; " 2029 "it is already at version %u\n"), 2030 zfs_get_name(zhp), version); 2031 cb->cb_numfailed++; 2032 } else { 2033 cb->cb_numsamegraded++; 2034 } 2035 return (0); 2036 } 2037 2038 /* 2039 * zfs upgrade 2040 * zfs upgrade -v 2041 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2042 */ 2043 static int 2044 zfs_do_upgrade(int argc, char **argv) 2045 { 2046 boolean_t all = B_FALSE; 2047 boolean_t showversions = B_FALSE; 2048 int ret = 0; 2049 upgrade_cbdata_t cb = { 0 }; 2050 char c; 2051 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2052 2053 /* check options */ 2054 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2055 switch (c) { 2056 case 'r': 2057 flags |= ZFS_ITER_RECURSE; 2058 break; 2059 case 'v': 2060 showversions = B_TRUE; 2061 break; 2062 case 'V': 2063 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2064 optarg, &cb.cb_version) != 0) { 2065 (void) fprintf(stderr, 2066 gettext("invalid version %s\n"), optarg); 2067 usage(B_FALSE); 2068 } 2069 break; 2070 case 'a': 2071 all = B_TRUE; 2072 break; 2073 case '?': 2074 default: 2075 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2076 optopt); 2077 usage(B_FALSE); 2078 } 2079 } 2080 2081 argc -= optind; 2082 argv += optind; 2083 2084 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2085 usage(B_FALSE); 2086 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2087 cb.cb_version || argc)) 2088 usage(B_FALSE); 2089 if ((all || argc) && (showversions)) 2090 usage(B_FALSE); 2091 if (all && argc) 2092 usage(B_FALSE); 2093 2094 if (showversions) { 2095 /* Show info on available versions. */ 2096 (void) printf(gettext("The following filesystem versions are " 2097 "supported:\n\n")); 2098 (void) printf(gettext("VER DESCRIPTION\n")); 2099 (void) printf("--- -----------------------------------------" 2100 "---------------\n"); 2101 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2102 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2103 (void) printf(gettext(" 3 Case insensitive and filesystem " 2104 "user identifier (FUID)\n")); 2105 (void) printf(gettext(" 4 userquota, groupquota " 2106 "properties\n")); 2107 (void) printf(gettext(" 5 System attributes\n")); 2108 (void) printf(gettext("\nFor more information on a particular " 2109 "version, including supported releases,\n")); 2110 (void) printf("see the ZFS Administration Guide.\n\n"); 2111 ret = 0; 2112 } else if (argc || all) { 2113 /* Upgrade filesystems */ 2114 if (cb.cb_version == 0) 2115 cb.cb_version = ZPL_VERSION; 2116 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2117 NULL, NULL, 0, upgrade_set_callback, &cb); 2118 (void) printf(gettext("%llu filesystems upgraded\n"), 2119 cb.cb_numupgraded); 2120 if (cb.cb_numsamegraded) { 2121 (void) printf(gettext("%llu filesystems already at " 2122 "this version\n"), 2123 cb.cb_numsamegraded); 2124 } 2125 if (cb.cb_numfailed != 0) 2126 ret = 1; 2127 } else { 2128 /* List old-version filesytems */ 2129 boolean_t found; 2130 (void) printf(gettext("This system is currently running " 2131 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2132 2133 flags |= ZFS_ITER_RECURSE; 2134 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2135 NULL, NULL, 0, upgrade_list_callback, &cb); 2136 2137 found = cb.cb_foundone; 2138 cb.cb_foundone = B_FALSE; 2139 cb.cb_newer = B_TRUE; 2140 2141 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2142 NULL, NULL, 0, upgrade_list_callback, &cb); 2143 2144 if (!cb.cb_foundone && !found) { 2145 (void) printf(gettext("All filesystems are " 2146 "formatted with the current version.\n")); 2147 } 2148 } 2149 2150 return (ret); 2151 } 2152 2153 /* 2154 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2155 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2156 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2157 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2158 * 2159 * -H Scripted mode; elide headers and separate columns by tabs. 2160 * -i Translate SID to POSIX ID. 2161 * -n Print numeric ID instead of user/group name. 2162 * -o Control which fields to display. 2163 * -p Use exact (parsable) numeric output. 2164 * -s Specify sort columns, descending order. 2165 * -S Specify sort columns, ascending order. 2166 * -t Control which object types to display. 2167 * 2168 * Displays space consumed by, and quotas on, each user in the specified 2169 * filesystem or snapshot. 2170 */ 2171 2172 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2173 enum us_field_types { 2174 USFIELD_TYPE, 2175 USFIELD_NAME, 2176 USFIELD_USED, 2177 USFIELD_QUOTA 2178 }; 2179 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2180 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2181 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2182 2183 #define USTYPE_PSX_GRP (1 << 0) 2184 #define USTYPE_PSX_USR (1 << 1) 2185 #define USTYPE_SMB_GRP (1 << 2) 2186 #define USTYPE_SMB_USR (1 << 3) 2187 #define USTYPE_ALL \ 2188 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2189 2190 static int us_type_bits[] = { 2191 USTYPE_PSX_GRP, 2192 USTYPE_PSX_USR, 2193 USTYPE_SMB_GRP, 2194 USTYPE_SMB_USR, 2195 USTYPE_ALL 2196 }; 2197 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2198 "smbuser", "all" }; 2199 2200 typedef struct us_node { 2201 nvlist_t *usn_nvl; 2202 uu_avl_node_t usn_avlnode; 2203 uu_list_node_t usn_listnode; 2204 } us_node_t; 2205 2206 typedef struct us_cbdata { 2207 nvlist_t **cb_nvlp; 2208 uu_avl_pool_t *cb_avl_pool; 2209 uu_avl_t *cb_avl; 2210 boolean_t cb_numname; 2211 boolean_t cb_nicenum; 2212 boolean_t cb_sid2posix; 2213 zfs_userquota_prop_t cb_prop; 2214 zfs_sort_column_t *cb_sortcol; 2215 size_t cb_width[USFIELD_LAST]; 2216 } us_cbdata_t; 2217 2218 static boolean_t us_populated = B_FALSE; 2219 2220 typedef struct { 2221 zfs_sort_column_t *si_sortcol; 2222 boolean_t si_numname; 2223 } us_sort_info_t; 2224 2225 static int 2226 us_field_index(char *field) 2227 { 2228 int i; 2229 2230 for (i = 0; i < USFIELD_LAST; i++) { 2231 if (strcmp(field, us_field_names[i]) == 0) 2232 return (i); 2233 } 2234 2235 return (-1); 2236 } 2237 2238 static int 2239 us_compare(const void *larg, const void *rarg, void *unused) 2240 { 2241 const us_node_t *l = larg; 2242 const us_node_t *r = rarg; 2243 us_sort_info_t *si = (us_sort_info_t *)unused; 2244 zfs_sort_column_t *sortcol = si->si_sortcol; 2245 boolean_t numname = si->si_numname; 2246 nvlist_t *lnvl = l->usn_nvl; 2247 nvlist_t *rnvl = r->usn_nvl; 2248 int rc = 0; 2249 boolean_t lvb, rvb; 2250 2251 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2252 char *lvstr = ""; 2253 char *rvstr = ""; 2254 uint32_t lv32 = 0; 2255 uint32_t rv32 = 0; 2256 uint64_t lv64 = 0; 2257 uint64_t rv64 = 0; 2258 zfs_prop_t prop = sortcol->sc_prop; 2259 const char *propname = NULL; 2260 boolean_t reverse = sortcol->sc_reverse; 2261 2262 switch (prop) { 2263 case ZFS_PROP_TYPE: 2264 propname = "type"; 2265 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2266 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2267 if (rv32 != lv32) 2268 rc = (rv32 < lv32) ? 1 : -1; 2269 break; 2270 case ZFS_PROP_NAME: 2271 propname = "name"; 2272 if (numname) { 2273 (void) nvlist_lookup_uint64(lnvl, propname, 2274 &lv64); 2275 (void) nvlist_lookup_uint64(rnvl, propname, 2276 &rv64); 2277 if (rv64 != lv64) 2278 rc = (rv64 < lv64) ? 1 : -1; 2279 } else { 2280 (void) nvlist_lookup_string(lnvl, propname, 2281 &lvstr); 2282 (void) nvlist_lookup_string(rnvl, propname, 2283 &rvstr); 2284 rc = strcmp(lvstr, rvstr); 2285 } 2286 break; 2287 case ZFS_PROP_USED: 2288 case ZFS_PROP_QUOTA: 2289 if (!us_populated) 2290 break; 2291 if (prop == ZFS_PROP_USED) 2292 propname = "used"; 2293 else 2294 propname = "quota"; 2295 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2296 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2297 if (rv64 != lv64) 2298 rc = (rv64 < lv64) ? 1 : -1; 2299 break; 2300 } 2301 2302 if (rc != 0) { 2303 if (rc < 0) 2304 return (reverse ? 1 : -1); 2305 else 2306 return (reverse ? -1 : 1); 2307 } 2308 } 2309 2310 /* 2311 * If entries still seem to be the same, check if they are of the same 2312 * type (smbentity is added only if we are doing SID to POSIX ID 2313 * translation where we can have duplicate type/name combinations). 2314 */ 2315 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2316 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2317 lvb != rvb) 2318 return (lvb < rvb ? -1 : 1); 2319 2320 return (0); 2321 } 2322 2323 static inline const char * 2324 us_type2str(unsigned field_type) 2325 { 2326 switch (field_type) { 2327 case USTYPE_PSX_USR: 2328 return ("POSIX User"); 2329 case USTYPE_PSX_GRP: 2330 return ("POSIX Group"); 2331 case USTYPE_SMB_USR: 2332 return ("SMB User"); 2333 case USTYPE_SMB_GRP: 2334 return ("SMB Group"); 2335 default: 2336 return ("Undefined"); 2337 } 2338 } 2339 2340 static int 2341 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2342 { 2343 us_cbdata_t *cb = (us_cbdata_t *)arg; 2344 zfs_userquota_prop_t prop = cb->cb_prop; 2345 char *name = NULL; 2346 char *propname; 2347 char sizebuf[32]; 2348 us_node_t *node; 2349 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2350 uu_avl_t *avl = cb->cb_avl; 2351 uu_avl_index_t idx; 2352 nvlist_t *props; 2353 us_node_t *n; 2354 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2355 unsigned type; 2356 const char *typestr; 2357 size_t namelen; 2358 size_t typelen; 2359 size_t sizelen; 2360 int typeidx, nameidx, sizeidx; 2361 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2362 boolean_t smbentity = B_FALSE; 2363 2364 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2365 nomem(); 2366 node = safe_malloc(sizeof (us_node_t)); 2367 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2368 node->usn_nvl = props; 2369 2370 if (domain != NULL && domain[0] != '\0') { 2371 /* SMB */ 2372 char sid[ZFS_MAXNAMELEN + 32]; 2373 uid_t id; 2374 uint64_t classes; 2375 int err; 2376 directory_error_t e; 2377 2378 smbentity = B_TRUE; 2379 2380 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2381 2382 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2383 type = USTYPE_SMB_GRP; 2384 err = sid_to_id(sid, B_FALSE, &id); 2385 } else { 2386 type = USTYPE_SMB_USR; 2387 err = sid_to_id(sid, B_TRUE, &id); 2388 } 2389 2390 if (err == 0) { 2391 rid = id; 2392 if (!cb->cb_sid2posix) { 2393 e = directory_name_from_sid(NULL, sid, &name, 2394 &classes); 2395 if (e != NULL) 2396 directory_error_free(e); 2397 if (name == NULL) 2398 name = sid; 2399 } 2400 } 2401 } 2402 2403 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2404 /* POSIX or -i */ 2405 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2406 type = USTYPE_PSX_GRP; 2407 if (!cb->cb_numname) { 2408 struct group *g; 2409 2410 if ((g = getgrgid(rid)) != NULL) 2411 name = g->gr_name; 2412 } 2413 } else { 2414 type = USTYPE_PSX_USR; 2415 if (!cb->cb_numname) { 2416 struct passwd *p; 2417 2418 if ((p = getpwuid(rid)) != NULL) 2419 name = p->pw_name; 2420 } 2421 } 2422 } 2423 2424 /* 2425 * Make sure that the type/name combination is unique when doing 2426 * SID to POSIX ID translation (hence changing the type from SMB to 2427 * POSIX). 2428 */ 2429 if (cb->cb_sid2posix && 2430 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2431 nomem(); 2432 2433 /* Calculate/update width of TYPE field */ 2434 typestr = us_type2str(type); 2435 typelen = strlen(gettext(typestr)); 2436 typeidx = us_field_index("type"); 2437 if (typelen > cb->cb_width[typeidx]) 2438 cb->cb_width[typeidx] = typelen; 2439 if (nvlist_add_uint32(props, "type", type) != 0) 2440 nomem(); 2441 2442 /* Calculate/update width of NAME field */ 2443 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2444 if (nvlist_add_uint64(props, "name", rid) != 0) 2445 nomem(); 2446 namelen = snprintf(NULL, 0, "%u", rid); 2447 } else { 2448 if (nvlist_add_string(props, "name", name) != 0) 2449 nomem(); 2450 namelen = strlen(name); 2451 } 2452 nameidx = us_field_index("name"); 2453 if (namelen > cb->cb_width[nameidx]) 2454 cb->cb_width[nameidx] = namelen; 2455 2456 /* 2457 * Check if this type/name combination is in the list and update it; 2458 * otherwise add new node to the list. 2459 */ 2460 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2461 uu_avl_insert(avl, node, idx); 2462 } else { 2463 nvlist_free(props); 2464 free(node); 2465 node = n; 2466 props = node->usn_nvl; 2467 } 2468 2469 /* Calculate/update width of USED/QUOTA fields */ 2470 if (cb->cb_nicenum) 2471 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2472 else 2473 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2474 sizelen = strlen(sizebuf); 2475 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2476 propname = "used"; 2477 if (!nvlist_exists(props, "quota")) 2478 (void) nvlist_add_uint64(props, "quota", 0); 2479 } else { 2480 propname = "quota"; 2481 if (!nvlist_exists(props, "used")) 2482 (void) nvlist_add_uint64(props, "used", 0); 2483 } 2484 sizeidx = us_field_index(propname); 2485 if (sizelen > cb->cb_width[sizeidx]) 2486 cb->cb_width[sizeidx] = sizelen; 2487 2488 if (nvlist_add_uint64(props, propname, space) != 0) 2489 nomem(); 2490 2491 return (0); 2492 } 2493 2494 static void 2495 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2496 size_t *width, us_node_t *node) 2497 { 2498 nvlist_t *nvl = node->usn_nvl; 2499 char valstr[ZFS_MAXNAMELEN]; 2500 boolean_t first = B_TRUE; 2501 int cfield = 0; 2502 int field; 2503 uint32_t ustype; 2504 2505 /* Check type */ 2506 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2507 if (!(ustype & types)) 2508 return; 2509 2510 while ((field = fields[cfield]) != USFIELD_LAST) { 2511 nvpair_t *nvp = NULL; 2512 data_type_t type; 2513 uint32_t val32; 2514 uint64_t val64; 2515 char *strval = NULL; 2516 2517 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2518 if (strcmp(nvpair_name(nvp), 2519 us_field_names[field]) == 0) 2520 break; 2521 } 2522 2523 type = nvpair_type(nvp); 2524 switch (type) { 2525 case DATA_TYPE_UINT32: 2526 (void) nvpair_value_uint32(nvp, &val32); 2527 break; 2528 case DATA_TYPE_UINT64: 2529 (void) nvpair_value_uint64(nvp, &val64); 2530 break; 2531 case DATA_TYPE_STRING: 2532 (void) nvpair_value_string(nvp, &strval); 2533 break; 2534 default: 2535 (void) fprintf(stderr, "invalid data type\n"); 2536 } 2537 2538 switch (field) { 2539 case USFIELD_TYPE: 2540 strval = (char *)us_type2str(val32); 2541 break; 2542 case USFIELD_NAME: 2543 if (type == DATA_TYPE_UINT64) { 2544 (void) sprintf(valstr, "%llu", val64); 2545 strval = valstr; 2546 } 2547 break; 2548 case USFIELD_USED: 2549 case USFIELD_QUOTA: 2550 if (type == DATA_TYPE_UINT64) { 2551 if (parsable) { 2552 (void) sprintf(valstr, "%llu", val64); 2553 } else { 2554 zfs_nicenum(val64, valstr, 2555 sizeof (valstr)); 2556 } 2557 if (field == USFIELD_QUOTA && 2558 strcmp(valstr, "0") == 0) 2559 strval = "none"; 2560 else 2561 strval = valstr; 2562 } 2563 break; 2564 } 2565 2566 if (!first) { 2567 if (scripted) 2568 (void) printf("\t"); 2569 else 2570 (void) printf(" "); 2571 } 2572 if (scripted) 2573 (void) printf("%s", strval); 2574 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2575 (void) printf("%-*s", width[field], strval); 2576 else 2577 (void) printf("%*s", width[field], strval); 2578 2579 first = B_FALSE; 2580 cfield++; 2581 } 2582 2583 (void) printf("\n"); 2584 } 2585 2586 static void 2587 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2588 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2589 { 2590 us_node_t *node; 2591 const char *col; 2592 int cfield = 0; 2593 int field; 2594 2595 if (!scripted) { 2596 boolean_t first = B_TRUE; 2597 2598 while ((field = fields[cfield]) != USFIELD_LAST) { 2599 col = gettext(us_field_hdr[field]); 2600 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2601 (void) printf(first ? "%-*s" : " %-*s", 2602 width[field], col); 2603 } else { 2604 (void) printf(first ? "%*s" : " %*s", 2605 width[field], col); 2606 } 2607 first = B_FALSE; 2608 cfield++; 2609 } 2610 (void) printf("\n"); 2611 } 2612 2613 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2614 print_us_node(scripted, parsable, fields, types, width, node); 2615 if (rmnode) 2616 nvlist_free(node->usn_nvl); 2617 } 2618 } 2619 2620 static int 2621 zfs_do_userspace(int argc, char **argv) 2622 { 2623 zfs_handle_t *zhp; 2624 zfs_userquota_prop_t p; 2625 uu_avl_pool_t *avl_pool; 2626 uu_avl_t *avl_tree; 2627 uu_avl_walk_t *walk; 2628 char *delim; 2629 char deffields[] = "type,name,used,quota"; 2630 char *ofield = NULL; 2631 char *tfield = NULL; 2632 int cfield = 0; 2633 int fields[256]; 2634 int i; 2635 boolean_t scripted = B_FALSE; 2636 boolean_t prtnum = B_FALSE; 2637 boolean_t parsable = B_FALSE; 2638 boolean_t sid2posix = B_FALSE; 2639 int ret = 0; 2640 int c; 2641 zfs_sort_column_t *sortcol = NULL; 2642 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2643 us_cbdata_t cb; 2644 us_node_t *node; 2645 us_node_t *rmnode; 2646 uu_list_pool_t *listpool; 2647 uu_list_t *list; 2648 uu_avl_index_t idx = 0; 2649 uu_list_index_t idx2 = 0; 2650 2651 if (argc < 2) 2652 usage(B_FALSE); 2653 2654 if (strcmp(argv[0], "groupspace") == 0) 2655 /* Toggle default group types */ 2656 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2657 2658 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2659 switch (c) { 2660 case 'n': 2661 prtnum = B_TRUE; 2662 break; 2663 case 'H': 2664 scripted = B_TRUE; 2665 break; 2666 case 'p': 2667 parsable = B_TRUE; 2668 break; 2669 case 'o': 2670 ofield = optarg; 2671 break; 2672 case 's': 2673 case 'S': 2674 if (zfs_add_sort_column(&sortcol, optarg, 2675 c == 's' ? B_FALSE : B_TRUE) != 0) { 2676 (void) fprintf(stderr, 2677 gettext("invalid field '%s'\n"), optarg); 2678 usage(B_FALSE); 2679 } 2680 break; 2681 case 't': 2682 tfield = optarg; 2683 break; 2684 case 'i': 2685 sid2posix = B_TRUE; 2686 break; 2687 case ':': 2688 (void) fprintf(stderr, gettext("missing argument for " 2689 "'%c' option\n"), optopt); 2690 usage(B_FALSE); 2691 break; 2692 case '?': 2693 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2694 optopt); 2695 usage(B_FALSE); 2696 } 2697 } 2698 2699 argc -= optind; 2700 argv += optind; 2701 2702 if (argc < 1) { 2703 (void) fprintf(stderr, gettext("missing dataset name\n")); 2704 usage(B_FALSE); 2705 } 2706 if (argc > 1) { 2707 (void) fprintf(stderr, gettext("too many arguments\n")); 2708 usage(B_FALSE); 2709 } 2710 2711 /* Use default output fields if not specified using -o */ 2712 if (ofield == NULL) 2713 ofield = deffields; 2714 do { 2715 if ((delim = strchr(ofield, ',')) != NULL) 2716 *delim = '\0'; 2717 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2718 (void) fprintf(stderr, gettext("invalid type '%s' " 2719 "for -o option\n"), ofield); 2720 return (-1); 2721 } 2722 if (delim != NULL) 2723 ofield = delim + 1; 2724 } while (delim != NULL); 2725 fields[cfield] = USFIELD_LAST; 2726 2727 /* Override output types (-t option) */ 2728 if (tfield != NULL) { 2729 types = 0; 2730 2731 do { 2732 boolean_t found = B_FALSE; 2733 2734 if ((delim = strchr(tfield, ',')) != NULL) 2735 *delim = '\0'; 2736 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2737 i++) { 2738 if (strcmp(tfield, us_type_names[i]) == 0) { 2739 found = B_TRUE; 2740 types |= us_type_bits[i]; 2741 break; 2742 } 2743 } 2744 if (!found) { 2745 (void) fprintf(stderr, gettext("invalid type " 2746 "'%s' for -t option\n"), tfield); 2747 return (-1); 2748 } 2749 if (delim != NULL) 2750 tfield = delim + 1; 2751 } while (delim != NULL); 2752 } 2753 2754 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2755 return (1); 2756 2757 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2758 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2759 nomem(); 2760 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2761 nomem(); 2762 2763 /* Always add default sorting columns */ 2764 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2765 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2766 2767 cb.cb_sortcol = sortcol; 2768 cb.cb_numname = prtnum; 2769 cb.cb_nicenum = !parsable; 2770 cb.cb_avl_pool = avl_pool; 2771 cb.cb_avl = avl_tree; 2772 cb.cb_sid2posix = sid2posix; 2773 2774 for (i = 0; i < USFIELD_LAST; i++) 2775 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2776 2777 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2778 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2779 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2780 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2781 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2782 continue; 2783 cb.cb_prop = p; 2784 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2785 return (ret); 2786 } 2787 2788 /* Sort the list */ 2789 if ((node = uu_avl_first(avl_tree)) == NULL) 2790 return (0); 2791 2792 us_populated = B_TRUE; 2793 2794 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2795 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2796 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2797 uu_list_node_init(node, &node->usn_listnode, listpool); 2798 2799 while (node != NULL) { 2800 rmnode = node; 2801 node = uu_avl_next(avl_tree, node); 2802 uu_avl_remove(avl_tree, rmnode); 2803 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2804 uu_list_insert(list, rmnode, idx2); 2805 } 2806 2807 for (node = uu_list_first(list); node != NULL; 2808 node = uu_list_next(list, node)) { 2809 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2810 2811 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2812 uu_avl_insert(avl_tree, node, idx); 2813 } 2814 2815 uu_list_destroy(list); 2816 uu_list_pool_destroy(listpool); 2817 2818 /* Print and free node nvlist memory */ 2819 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2820 cb.cb_avl); 2821 2822 zfs_free_sort_columns(sortcol); 2823 2824 /* Clean up the AVL tree */ 2825 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2826 nomem(); 2827 2828 while ((node = uu_avl_walk_next(walk)) != NULL) { 2829 uu_avl_remove(cb.cb_avl, node); 2830 free(node); 2831 } 2832 2833 uu_avl_walk_end(walk); 2834 uu_avl_destroy(avl_tree); 2835 uu_avl_pool_destroy(avl_pool); 2836 2837 return (ret); 2838 } 2839 2840 /* 2841 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2842 * [-t type[,...]] [filesystem|volume|snapshot] ... 2843 * 2844 * -H Scripted mode; elide headers and separate columns by tabs. 2845 * -p Display values in parsable (literal) format. 2846 * -r Recurse over all children. 2847 * -d Limit recursion by depth. 2848 * -o Control which fields to display. 2849 * -s Specify sort columns, descending order. 2850 * -S Specify sort columns, ascending order. 2851 * -t Control which object types to display. 2852 * 2853 * When given no arguments, list all filesystems in the system. 2854 * Otherwise, list the specified datasets, optionally recursing down them if 2855 * '-r' is specified. 2856 */ 2857 typedef struct list_cbdata { 2858 boolean_t cb_first; 2859 boolean_t cb_literal; 2860 boolean_t cb_scripted; 2861 zprop_list_t *cb_proplist; 2862 } list_cbdata_t; 2863 2864 /* 2865 * Given a list of columns to display, output appropriate headers for each one. 2866 */ 2867 static void 2868 print_header(list_cbdata_t *cb) 2869 { 2870 zprop_list_t *pl = cb->cb_proplist; 2871 char headerbuf[ZFS_MAXPROPLEN]; 2872 const char *header; 2873 int i; 2874 boolean_t first = B_TRUE; 2875 boolean_t right_justify; 2876 2877 for (; pl != NULL; pl = pl->pl_next) { 2878 if (!first) { 2879 (void) printf(" "); 2880 } else { 2881 first = B_FALSE; 2882 } 2883 2884 right_justify = B_FALSE; 2885 if (pl->pl_prop != ZPROP_INVAL) { 2886 header = zfs_prop_column_name(pl->pl_prop); 2887 right_justify = zfs_prop_align_right(pl->pl_prop); 2888 } else { 2889 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2890 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2891 headerbuf[i] = '\0'; 2892 header = headerbuf; 2893 } 2894 2895 if (pl->pl_next == NULL && !right_justify) 2896 (void) printf("%s", header); 2897 else if (right_justify) 2898 (void) printf("%*s", pl->pl_width, header); 2899 else 2900 (void) printf("%-*s", pl->pl_width, header); 2901 } 2902 2903 (void) printf("\n"); 2904 } 2905 2906 /* 2907 * Given a dataset and a list of fields, print out all the properties according 2908 * to the described layout. 2909 */ 2910 static void 2911 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2912 { 2913 zprop_list_t *pl = cb->cb_proplist; 2914 boolean_t first = B_TRUE; 2915 char property[ZFS_MAXPROPLEN]; 2916 nvlist_t *userprops = zfs_get_user_props(zhp); 2917 nvlist_t *propval; 2918 char *propstr; 2919 boolean_t right_justify; 2920 2921 for (; pl != NULL; pl = pl->pl_next) { 2922 if (!first) { 2923 if (cb->cb_scripted) 2924 (void) printf("\t"); 2925 else 2926 (void) printf(" "); 2927 } else { 2928 first = B_FALSE; 2929 } 2930 2931 if (pl->pl_prop != ZPROP_INVAL) { 2932 if (zfs_prop_get(zhp, pl->pl_prop, property, 2933 sizeof (property), NULL, NULL, 0, 2934 cb->cb_literal) != 0) 2935 propstr = "-"; 2936 else 2937 propstr = property; 2938 right_justify = zfs_prop_align_right(pl->pl_prop); 2939 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2940 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2941 property, sizeof (property), cb->cb_literal) != 0) 2942 propstr = "-"; 2943 else 2944 propstr = property; 2945 right_justify = B_TRUE; 2946 } else if (zfs_prop_written(pl->pl_user_prop)) { 2947 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2948 property, sizeof (property), cb->cb_literal) != 0) 2949 propstr = "-"; 2950 else 2951 propstr = property; 2952 right_justify = B_TRUE; 2953 } else { 2954 if (nvlist_lookup_nvlist(userprops, 2955 pl->pl_user_prop, &propval) != 0) 2956 propstr = "-"; 2957 else 2958 verify(nvlist_lookup_string(propval, 2959 ZPROP_VALUE, &propstr) == 0); 2960 right_justify = B_FALSE; 2961 } 2962 2963 /* 2964 * If this is being called in scripted mode, or if this is the 2965 * last column and it is left-justified, don't include a width 2966 * format specifier. 2967 */ 2968 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 2969 (void) printf("%s", propstr); 2970 else if (right_justify) 2971 (void) printf("%*s", pl->pl_width, propstr); 2972 else 2973 (void) printf("%-*s", pl->pl_width, propstr); 2974 } 2975 2976 (void) printf("\n"); 2977 } 2978 2979 /* 2980 * Generic callback function to list a dataset or snapshot. 2981 */ 2982 static int 2983 list_callback(zfs_handle_t *zhp, void *data) 2984 { 2985 list_cbdata_t *cbp = data; 2986 2987 if (cbp->cb_first) { 2988 if (!cbp->cb_scripted) 2989 print_header(cbp); 2990 cbp->cb_first = B_FALSE; 2991 } 2992 2993 print_dataset(zhp, cbp); 2994 2995 return (0); 2996 } 2997 2998 static int 2999 zfs_do_list(int argc, char **argv) 3000 { 3001 int c; 3002 static char default_fields[] = 3003 "name,used,available,referenced,mountpoint"; 3004 int types = ZFS_TYPE_DATASET; 3005 boolean_t types_specified = B_FALSE; 3006 char *fields = NULL; 3007 list_cbdata_t cb = { 0 }; 3008 char *value; 3009 int limit = 0; 3010 int ret = 0; 3011 zfs_sort_column_t *sortcol = NULL; 3012 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3013 3014 /* check options */ 3015 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3016 switch (c) { 3017 case 'o': 3018 fields = optarg; 3019 break; 3020 case 'p': 3021 cb.cb_literal = B_TRUE; 3022 flags |= ZFS_ITER_LITERAL_PROPS; 3023 break; 3024 case 'd': 3025 limit = parse_depth(optarg, &flags); 3026 break; 3027 case 'r': 3028 flags |= ZFS_ITER_RECURSE; 3029 break; 3030 case 'H': 3031 cb.cb_scripted = B_TRUE; 3032 break; 3033 case 's': 3034 if (zfs_add_sort_column(&sortcol, optarg, 3035 B_FALSE) != 0) { 3036 (void) fprintf(stderr, 3037 gettext("invalid property '%s'\n"), optarg); 3038 usage(B_FALSE); 3039 } 3040 break; 3041 case 'S': 3042 if (zfs_add_sort_column(&sortcol, optarg, 3043 B_TRUE) != 0) { 3044 (void) fprintf(stderr, 3045 gettext("invalid property '%s'\n"), optarg); 3046 usage(B_FALSE); 3047 } 3048 break; 3049 case 't': 3050 types = 0; 3051 types_specified = B_TRUE; 3052 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3053 while (*optarg != '\0') { 3054 static char *type_subopts[] = { "filesystem", 3055 "volume", "snapshot", "bookmark", 3056 "all", NULL }; 3057 3058 switch (getsubopt(&optarg, type_subopts, 3059 &value)) { 3060 case 0: 3061 types |= ZFS_TYPE_FILESYSTEM; 3062 break; 3063 case 1: 3064 types |= ZFS_TYPE_VOLUME; 3065 break; 3066 case 2: 3067 types |= ZFS_TYPE_SNAPSHOT; 3068 break; 3069 case 3: 3070 types |= ZFS_TYPE_BOOKMARK; 3071 break; 3072 case 4: 3073 types = ZFS_TYPE_DATASET | 3074 ZFS_TYPE_BOOKMARK; 3075 break; 3076 default: 3077 (void) fprintf(stderr, 3078 gettext("invalid type '%s'\n"), 3079 value); 3080 usage(B_FALSE); 3081 } 3082 } 3083 break; 3084 case ':': 3085 (void) fprintf(stderr, gettext("missing argument for " 3086 "'%c' option\n"), optopt); 3087 usage(B_FALSE); 3088 break; 3089 case '?': 3090 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3091 optopt); 3092 usage(B_FALSE); 3093 } 3094 } 3095 3096 argc -= optind; 3097 argv += optind; 3098 3099 if (fields == NULL) 3100 fields = default_fields; 3101 3102 /* 3103 * If "-o space" and no types were specified, don't display snapshots. 3104 */ 3105 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3106 types &= ~ZFS_TYPE_SNAPSHOT; 3107 3108 /* 3109 * If the user specifies '-o all', the zprop_get_list() doesn't 3110 * normally include the name of the dataset. For 'zfs list', we always 3111 * want this property to be first. 3112 */ 3113 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3114 != 0) 3115 usage(B_FALSE); 3116 3117 cb.cb_first = B_TRUE; 3118 3119 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3120 limit, list_callback, &cb); 3121 3122 zprop_free_list(cb.cb_proplist); 3123 zfs_free_sort_columns(sortcol); 3124 3125 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3126 (void) printf(gettext("no datasets available\n")); 3127 3128 return (ret); 3129 } 3130 3131 /* 3132 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3133 * zfs rename [-f] -p <fs | vol> <fs | vol> 3134 * zfs rename -r <snap> <snap> 3135 * 3136 * Renames the given dataset to another of the same type. 3137 * 3138 * The '-p' flag creates all the non-existing ancestors of the target first. 3139 */ 3140 /* ARGSUSED */ 3141 static int 3142 zfs_do_rename(int argc, char **argv) 3143 { 3144 zfs_handle_t *zhp; 3145 int c; 3146 int ret = 0; 3147 boolean_t recurse = B_FALSE; 3148 boolean_t parents = B_FALSE; 3149 boolean_t force_unmount = B_FALSE; 3150 3151 /* check options */ 3152 while ((c = getopt(argc, argv, "prf")) != -1) { 3153 switch (c) { 3154 case 'p': 3155 parents = B_TRUE; 3156 break; 3157 case 'r': 3158 recurse = B_TRUE; 3159 break; 3160 case 'f': 3161 force_unmount = B_TRUE; 3162 break; 3163 case '?': 3164 default: 3165 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3166 optopt); 3167 usage(B_FALSE); 3168 } 3169 } 3170 3171 argc -= optind; 3172 argv += optind; 3173 3174 /* check number of arguments */ 3175 if (argc < 1) { 3176 (void) fprintf(stderr, gettext("missing source dataset " 3177 "argument\n")); 3178 usage(B_FALSE); 3179 } 3180 if (argc < 2) { 3181 (void) fprintf(stderr, gettext("missing target dataset " 3182 "argument\n")); 3183 usage(B_FALSE); 3184 } 3185 if (argc > 2) { 3186 (void) fprintf(stderr, gettext("too many arguments\n")); 3187 usage(B_FALSE); 3188 } 3189 3190 if (recurse && parents) { 3191 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3192 "exclusive\n")); 3193 usage(B_FALSE); 3194 } 3195 3196 if (recurse && strchr(argv[0], '@') == 0) { 3197 (void) fprintf(stderr, gettext("source dataset for recursive " 3198 "rename must be a snapshot\n")); 3199 usage(B_FALSE); 3200 } 3201 3202 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3203 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3204 return (1); 3205 3206 /* If we were asked and the name looks good, try to create ancestors. */ 3207 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3208 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3209 zfs_close(zhp); 3210 return (1); 3211 } 3212 3213 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3214 3215 zfs_close(zhp); 3216 return (ret); 3217 } 3218 3219 /* 3220 * zfs promote <fs> 3221 * 3222 * Promotes the given clone fs to be the parent 3223 */ 3224 /* ARGSUSED */ 3225 static int 3226 zfs_do_promote(int argc, char **argv) 3227 { 3228 zfs_handle_t *zhp; 3229 int ret = 0; 3230 3231 /* check options */ 3232 if (argc > 1 && argv[1][0] == '-') { 3233 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3234 argv[1][1]); 3235 usage(B_FALSE); 3236 } 3237 3238 /* check number of arguments */ 3239 if (argc < 2) { 3240 (void) fprintf(stderr, gettext("missing clone filesystem" 3241 " argument\n")); 3242 usage(B_FALSE); 3243 } 3244 if (argc > 2) { 3245 (void) fprintf(stderr, gettext("too many arguments\n")); 3246 usage(B_FALSE); 3247 } 3248 3249 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3250 if (zhp == NULL) 3251 return (1); 3252 3253 ret = (zfs_promote(zhp) != 0); 3254 3255 3256 zfs_close(zhp); 3257 return (ret); 3258 } 3259 3260 /* 3261 * zfs rollback [-rRf] <snapshot> 3262 * 3263 * -r Delete any intervening snapshots before doing rollback 3264 * -R Delete any snapshots and their clones 3265 * -f ignored for backwards compatability 3266 * 3267 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3268 * since then and making it the active dataset. If more recent snapshots exist, 3269 * the command will complain unless the '-r' flag is given. 3270 */ 3271 typedef struct rollback_cbdata { 3272 uint64_t cb_create; 3273 boolean_t cb_first; 3274 int cb_doclones; 3275 char *cb_target; 3276 int cb_error; 3277 boolean_t cb_recurse; 3278 } rollback_cbdata_t; 3279 3280 static int 3281 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3282 { 3283 rollback_cbdata_t *cbp = data; 3284 3285 if (cbp->cb_first && cbp->cb_recurse) { 3286 (void) fprintf(stderr, gettext("cannot rollback to " 3287 "'%s': clones of previous snapshots exist\n"), 3288 cbp->cb_target); 3289 (void) fprintf(stderr, gettext("use '-R' to " 3290 "force deletion of the following clones and " 3291 "dependents:\n")); 3292 cbp->cb_first = 0; 3293 cbp->cb_error = 1; 3294 } 3295 3296 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3297 3298 zfs_close(zhp); 3299 return (0); 3300 } 3301 /* 3302 * Report any snapshots more recent than the one specified. Used when '-r' is 3303 * not specified. We reuse this same callback for the snapshot dependents - if 3304 * 'cb_dependent' is set, then this is a dependent and we should report it 3305 * without checking the transaction group. 3306 */ 3307 static int 3308 rollback_check(zfs_handle_t *zhp, void *data) 3309 { 3310 rollback_cbdata_t *cbp = data; 3311 3312 if (cbp->cb_doclones) { 3313 zfs_close(zhp); 3314 return (0); 3315 } 3316 3317 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3318 if (cbp->cb_first && !cbp->cb_recurse) { 3319 (void) fprintf(stderr, gettext("cannot " 3320 "rollback to '%s': more recent snapshots " 3321 "or bookmarks exist\n"), 3322 cbp->cb_target); 3323 (void) fprintf(stderr, gettext("use '-r' to " 3324 "force deletion of the following " 3325 "snapshots and bookmarks:\n")); 3326 cbp->cb_first = 0; 3327 cbp->cb_error = 1; 3328 } 3329 3330 if (cbp->cb_recurse) { 3331 if (zfs_iter_dependents(zhp, B_TRUE, 3332 rollback_check_dependent, cbp) != 0) { 3333 zfs_close(zhp); 3334 return (-1); 3335 } 3336 } else { 3337 (void) fprintf(stderr, "%s\n", 3338 zfs_get_name(zhp)); 3339 } 3340 } 3341 zfs_close(zhp); 3342 return (0); 3343 } 3344 3345 static int 3346 zfs_do_rollback(int argc, char **argv) 3347 { 3348 int ret = 0; 3349 int c; 3350 boolean_t force = B_FALSE; 3351 rollback_cbdata_t cb = { 0 }; 3352 zfs_handle_t *zhp, *snap; 3353 char parentname[ZFS_MAXNAMELEN]; 3354 char *delim; 3355 3356 /* check options */ 3357 while ((c = getopt(argc, argv, "rRf")) != -1) { 3358 switch (c) { 3359 case 'r': 3360 cb.cb_recurse = 1; 3361 break; 3362 case 'R': 3363 cb.cb_recurse = 1; 3364 cb.cb_doclones = 1; 3365 break; 3366 case 'f': 3367 force = B_TRUE; 3368 break; 3369 case '?': 3370 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3371 optopt); 3372 usage(B_FALSE); 3373 } 3374 } 3375 3376 argc -= optind; 3377 argv += optind; 3378 3379 /* check number of arguments */ 3380 if (argc < 1) { 3381 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3382 usage(B_FALSE); 3383 } 3384 if (argc > 1) { 3385 (void) fprintf(stderr, gettext("too many arguments\n")); 3386 usage(B_FALSE); 3387 } 3388 3389 /* open the snapshot */ 3390 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3391 return (1); 3392 3393 /* open the parent dataset */ 3394 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3395 verify((delim = strrchr(parentname, '@')) != NULL); 3396 *delim = '\0'; 3397 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3398 zfs_close(snap); 3399 return (1); 3400 } 3401 3402 /* 3403 * Check for more recent snapshots and/or clones based on the presence 3404 * of '-r' and '-R'. 3405 */ 3406 cb.cb_target = argv[0]; 3407 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3408 cb.cb_first = B_TRUE; 3409 cb.cb_error = 0; 3410 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3411 goto out; 3412 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3413 goto out; 3414 3415 if ((ret = cb.cb_error) != 0) 3416 goto out; 3417 3418 /* 3419 * Rollback parent to the given snapshot. 3420 */ 3421 ret = zfs_rollback(zhp, snap, force); 3422 3423 out: 3424 zfs_close(snap); 3425 zfs_close(zhp); 3426 3427 if (ret == 0) 3428 return (0); 3429 else 3430 return (1); 3431 } 3432 3433 /* 3434 * zfs set property=value { fs | snap | vol } ... 3435 * 3436 * Sets the given property for all datasets specified on the command line. 3437 */ 3438 typedef struct set_cbdata { 3439 char *cb_propname; 3440 char *cb_value; 3441 } set_cbdata_t; 3442 3443 static int 3444 set_callback(zfs_handle_t *zhp, void *data) 3445 { 3446 set_cbdata_t *cbp = data; 3447 3448 if (zfs_prop_set(zhp, cbp->cb_propname, cbp->cb_value) != 0) { 3449 switch (libzfs_errno(g_zfs)) { 3450 case EZFS_MOUNTFAILED: 3451 (void) fprintf(stderr, gettext("property may be set " 3452 "but unable to remount filesystem\n")); 3453 break; 3454 case EZFS_SHARENFSFAILED: 3455 (void) fprintf(stderr, gettext("property may be set " 3456 "but unable to reshare filesystem\n")); 3457 break; 3458 } 3459 return (1); 3460 } 3461 return (0); 3462 } 3463 3464 static int 3465 zfs_do_set(int argc, char **argv) 3466 { 3467 set_cbdata_t cb; 3468 int ret = 0; 3469 3470 /* check for options */ 3471 if (argc > 1 && argv[1][0] == '-') { 3472 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3473 argv[1][1]); 3474 usage(B_FALSE); 3475 } 3476 3477 /* check number of arguments */ 3478 if (argc < 2) { 3479 (void) fprintf(stderr, gettext("missing property=value " 3480 "argument\n")); 3481 usage(B_FALSE); 3482 } 3483 if (argc < 3) { 3484 (void) fprintf(stderr, gettext("missing dataset name\n")); 3485 usage(B_FALSE); 3486 } 3487 3488 /* validate property=value argument */ 3489 cb.cb_propname = argv[1]; 3490 if (((cb.cb_value = strchr(cb.cb_propname, '=')) == NULL) || 3491 (cb.cb_value[1] == '\0')) { 3492 (void) fprintf(stderr, gettext("missing value in " 3493 "property=value argument\n")); 3494 usage(B_FALSE); 3495 } 3496 3497 *cb.cb_value = '\0'; 3498 cb.cb_value++; 3499 3500 if (*cb.cb_propname == '\0') { 3501 (void) fprintf(stderr, 3502 gettext("missing property in property=value argument\n")); 3503 usage(B_FALSE); 3504 } 3505 3506 ret = zfs_for_each(argc - 2, argv + 2, NULL, 3507 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb); 3508 3509 return (ret); 3510 } 3511 3512 typedef struct snap_cbdata { 3513 nvlist_t *sd_nvl; 3514 boolean_t sd_recursive; 3515 const char *sd_snapname; 3516 } snap_cbdata_t; 3517 3518 static int 3519 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3520 { 3521 snap_cbdata_t *sd = arg; 3522 char *name; 3523 int rv = 0; 3524 int error; 3525 3526 if (sd->sd_recursive && 3527 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3528 zfs_close(zhp); 3529 return (0); 3530 } 3531 3532 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3533 if (error == -1) 3534 nomem(); 3535 fnvlist_add_boolean(sd->sd_nvl, name); 3536 free(name); 3537 3538 if (sd->sd_recursive) 3539 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3540 zfs_close(zhp); 3541 return (rv); 3542 } 3543 3544 /* 3545 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3546 * 3547 * Creates a snapshot with the given name. While functionally equivalent to 3548 * 'zfs create', it is a separate command to differentiate intent. 3549 */ 3550 static int 3551 zfs_do_snapshot(int argc, char **argv) 3552 { 3553 int ret = 0; 3554 char c; 3555 nvlist_t *props; 3556 snap_cbdata_t sd = { 0 }; 3557 boolean_t multiple_snaps = B_FALSE; 3558 3559 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3560 nomem(); 3561 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3562 nomem(); 3563 3564 /* check options */ 3565 while ((c = getopt(argc, argv, "ro:")) != -1) { 3566 switch (c) { 3567 case 'o': 3568 if (parseprop(props)) 3569 return (1); 3570 break; 3571 case 'r': 3572 sd.sd_recursive = B_TRUE; 3573 multiple_snaps = B_TRUE; 3574 break; 3575 case '?': 3576 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3577 optopt); 3578 goto usage; 3579 } 3580 } 3581 3582 argc -= optind; 3583 argv += optind; 3584 3585 /* check number of arguments */ 3586 if (argc < 1) { 3587 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3588 goto usage; 3589 } 3590 3591 if (argc > 1) 3592 multiple_snaps = B_TRUE; 3593 for (; argc > 0; argc--, argv++) { 3594 char *atp; 3595 zfs_handle_t *zhp; 3596 3597 atp = strchr(argv[0], '@'); 3598 if (atp == NULL) 3599 goto usage; 3600 *atp = '\0'; 3601 sd.sd_snapname = atp + 1; 3602 zhp = zfs_open(g_zfs, argv[0], 3603 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3604 if (zhp == NULL) 3605 goto usage; 3606 if (zfs_snapshot_cb(zhp, &sd) != 0) 3607 goto usage; 3608 } 3609 3610 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3611 nvlist_free(sd.sd_nvl); 3612 nvlist_free(props); 3613 if (ret != 0 && multiple_snaps) 3614 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3615 return (ret != 0); 3616 3617 usage: 3618 nvlist_free(sd.sd_nvl); 3619 nvlist_free(props); 3620 usage(B_FALSE); 3621 return (-1); 3622 } 3623 3624 /* 3625 * Send a backup stream to stdout. 3626 */ 3627 static int 3628 zfs_do_send(int argc, char **argv) 3629 { 3630 char *fromname = NULL; 3631 char *toname = NULL; 3632 char *cp; 3633 zfs_handle_t *zhp; 3634 sendflags_t flags = { 0 }; 3635 int c, err; 3636 nvlist_t *dbgnv = NULL; 3637 boolean_t extraverbose = B_FALSE; 3638 3639 /* check options */ 3640 while ((c = getopt(argc, argv, ":i:I:RDpvnP")) != -1) { 3641 switch (c) { 3642 case 'i': 3643 if (fromname) 3644 usage(B_FALSE); 3645 fromname = optarg; 3646 break; 3647 case 'I': 3648 if (fromname) 3649 usage(B_FALSE); 3650 fromname = optarg; 3651 flags.doall = B_TRUE; 3652 break; 3653 case 'R': 3654 flags.replicate = B_TRUE; 3655 break; 3656 case 'p': 3657 flags.props = B_TRUE; 3658 break; 3659 case 'P': 3660 flags.parsable = B_TRUE; 3661 flags.verbose = B_TRUE; 3662 break; 3663 case 'v': 3664 if (flags.verbose) 3665 extraverbose = B_TRUE; 3666 flags.verbose = B_TRUE; 3667 flags.progress = B_TRUE; 3668 break; 3669 case 'D': 3670 flags.dedup = B_TRUE; 3671 break; 3672 case 'n': 3673 flags.dryrun = B_TRUE; 3674 break; 3675 case ':': 3676 (void) fprintf(stderr, gettext("missing argument for " 3677 "'%c' option\n"), optopt); 3678 usage(B_FALSE); 3679 break; 3680 case '?': 3681 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3682 optopt); 3683 usage(B_FALSE); 3684 } 3685 } 3686 3687 argc -= optind; 3688 argv += optind; 3689 3690 /* check number of arguments */ 3691 if (argc < 1) { 3692 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3693 usage(B_FALSE); 3694 } 3695 if (argc > 1) { 3696 (void) fprintf(stderr, gettext("too many arguments\n")); 3697 usage(B_FALSE); 3698 } 3699 3700 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3701 (void) fprintf(stderr, 3702 gettext("Error: Stream can not be written to a terminal.\n" 3703 "You must redirect standard output.\n")); 3704 return (1); 3705 } 3706 3707 /* 3708 * Special case sending a filesystem, or from a bookmark. 3709 */ 3710 if (strchr(argv[0], '@') == NULL || 3711 (fromname && strchr(fromname, '#') != NULL)) { 3712 char frombuf[ZFS_MAXNAMELEN]; 3713 3714 if (flags.replicate || flags.doall || flags.props || 3715 flags.dedup || flags.dryrun || flags.verbose || 3716 flags.progress) { 3717 (void) fprintf(stderr, 3718 gettext("Error: " 3719 "Unsupported flag with filesystem or bookmark.\n")); 3720 return (1); 3721 } 3722 3723 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3724 if (zhp == NULL) 3725 return (1); 3726 3727 if (fromname != NULL && 3728 (fromname[0] == '#' || fromname[0] == '@')) { 3729 /* 3730 * Incremental source name begins with # or @. 3731 * Default to same fs as target. 3732 */ 3733 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3734 cp = strchr(frombuf, '@'); 3735 if (cp != NULL) 3736 *cp = '\0'; 3737 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3738 fromname = frombuf; 3739 } 3740 err = zfs_send_one(zhp, fromname, STDOUT_FILENO); 3741 zfs_close(zhp); 3742 return (err != 0); 3743 } 3744 3745 cp = strchr(argv[0], '@'); 3746 *cp = '\0'; 3747 toname = cp + 1; 3748 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3749 if (zhp == NULL) 3750 return (1); 3751 3752 /* 3753 * If they specified the full path to the snapshot, chop off 3754 * everything except the short name of the snapshot, but special 3755 * case if they specify the origin. 3756 */ 3757 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3758 char origin[ZFS_MAXNAMELEN]; 3759 zprop_source_t src; 3760 3761 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3762 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3763 3764 if (strcmp(origin, fromname) == 0) { 3765 fromname = NULL; 3766 flags.fromorigin = B_TRUE; 3767 } else { 3768 *cp = '\0'; 3769 if (cp != fromname && strcmp(argv[0], fromname)) { 3770 (void) fprintf(stderr, 3771 gettext("incremental source must be " 3772 "in same filesystem\n")); 3773 usage(B_FALSE); 3774 } 3775 fromname = cp + 1; 3776 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3777 (void) fprintf(stderr, 3778 gettext("invalid incremental source\n")); 3779 usage(B_FALSE); 3780 } 3781 } 3782 } 3783 3784 if (flags.replicate && fromname == NULL) 3785 flags.doall = B_TRUE; 3786 3787 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3788 extraverbose ? &dbgnv : NULL); 3789 3790 if (extraverbose && dbgnv != NULL) { 3791 /* 3792 * dump_nvlist prints to stdout, but that's been 3793 * redirected to a file. Make it print to stderr 3794 * instead. 3795 */ 3796 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3797 dump_nvlist(dbgnv, 0); 3798 nvlist_free(dbgnv); 3799 } 3800 zfs_close(zhp); 3801 3802 return (err != 0); 3803 } 3804 3805 /* 3806 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3807 * 3808 * Restore a backup stream from stdin. 3809 */ 3810 static int 3811 zfs_do_receive(int argc, char **argv) 3812 { 3813 int c, err; 3814 recvflags_t flags = { 0 }; 3815 3816 /* check options */ 3817 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3818 switch (c) { 3819 case 'd': 3820 flags.isprefix = B_TRUE; 3821 break; 3822 case 'e': 3823 flags.isprefix = B_TRUE; 3824 flags.istail = B_TRUE; 3825 break; 3826 case 'n': 3827 flags.dryrun = B_TRUE; 3828 break; 3829 case 'u': 3830 flags.nomount = B_TRUE; 3831 break; 3832 case 'v': 3833 flags.verbose = B_TRUE; 3834 break; 3835 case 'F': 3836 flags.force = B_TRUE; 3837 break; 3838 case ':': 3839 (void) fprintf(stderr, gettext("missing argument for " 3840 "'%c' option\n"), optopt); 3841 usage(B_FALSE); 3842 break; 3843 case '?': 3844 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3845 optopt); 3846 usage(B_FALSE); 3847 } 3848 } 3849 3850 argc -= optind; 3851 argv += optind; 3852 3853 /* check number of arguments */ 3854 if (argc < 1) { 3855 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3856 usage(B_FALSE); 3857 } 3858 if (argc > 1) { 3859 (void) fprintf(stderr, gettext("too many arguments\n")); 3860 usage(B_FALSE); 3861 } 3862 3863 if (isatty(STDIN_FILENO)) { 3864 (void) fprintf(stderr, 3865 gettext("Error: Backup stream can not be read " 3866 "from a terminal.\n" 3867 "You must redirect standard input.\n")); 3868 return (1); 3869 } 3870 3871 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3872 3873 return (err != 0); 3874 } 3875 3876 /* 3877 * allow/unallow stuff 3878 */ 3879 /* copied from zfs/sys/dsl_deleg.h */ 3880 #define ZFS_DELEG_PERM_CREATE "create" 3881 #define ZFS_DELEG_PERM_DESTROY "destroy" 3882 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3883 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 3884 #define ZFS_DELEG_PERM_CLONE "clone" 3885 #define ZFS_DELEG_PERM_PROMOTE "promote" 3886 #define ZFS_DELEG_PERM_RENAME "rename" 3887 #define ZFS_DELEG_PERM_MOUNT "mount" 3888 #define ZFS_DELEG_PERM_SHARE "share" 3889 #define ZFS_DELEG_PERM_SEND "send" 3890 #define ZFS_DELEG_PERM_RECEIVE "receive" 3891 #define ZFS_DELEG_PERM_ALLOW "allow" 3892 #define ZFS_DELEG_PERM_USERPROP "userprop" 3893 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3894 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 3895 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3896 #define ZFS_DELEG_PERM_USERUSED "userused" 3897 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 3898 #define ZFS_DELEG_PERM_HOLD "hold" 3899 #define ZFS_DELEG_PERM_RELEASE "release" 3900 #define ZFS_DELEG_PERM_DIFF "diff" 3901 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3902 3903 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3904 3905 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3906 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3907 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3908 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3909 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3910 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3911 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3912 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3913 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3914 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3915 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3916 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3917 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3918 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3919 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3920 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3921 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 3922 3923 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3924 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3925 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3926 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3927 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3928 { NULL, ZFS_DELEG_NOTE_NONE } 3929 }; 3930 3931 /* permission structure */ 3932 typedef struct deleg_perm { 3933 zfs_deleg_who_type_t dp_who_type; 3934 const char *dp_name; 3935 boolean_t dp_local; 3936 boolean_t dp_descend; 3937 } deleg_perm_t; 3938 3939 /* */ 3940 typedef struct deleg_perm_node { 3941 deleg_perm_t dpn_perm; 3942 3943 uu_avl_node_t dpn_avl_node; 3944 } deleg_perm_node_t; 3945 3946 typedef struct fs_perm fs_perm_t; 3947 3948 /* permissions set */ 3949 typedef struct who_perm { 3950 zfs_deleg_who_type_t who_type; 3951 const char *who_name; /* id */ 3952 char who_ug_name[256]; /* user/group name */ 3953 fs_perm_t *who_fsperm; /* uplink */ 3954 3955 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3956 } who_perm_t; 3957 3958 /* */ 3959 typedef struct who_perm_node { 3960 who_perm_t who_perm; 3961 uu_avl_node_t who_avl_node; 3962 } who_perm_node_t; 3963 3964 typedef struct fs_perm_set fs_perm_set_t; 3965 /* fs permissions */ 3966 struct fs_perm { 3967 const char *fsp_name; 3968 3969 uu_avl_t *fsp_sc_avl; /* sets,create */ 3970 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 3971 3972 fs_perm_set_t *fsp_set; /* uplink */ 3973 }; 3974 3975 /* */ 3976 typedef struct fs_perm_node { 3977 fs_perm_t fspn_fsperm; 3978 uu_avl_t *fspn_avl; 3979 3980 uu_list_node_t fspn_list_node; 3981 } fs_perm_node_t; 3982 3983 /* top level structure */ 3984 struct fs_perm_set { 3985 uu_list_pool_t *fsps_list_pool; 3986 uu_list_t *fsps_list; /* list of fs_perms */ 3987 3988 uu_avl_pool_t *fsps_named_set_avl_pool; 3989 uu_avl_pool_t *fsps_who_perm_avl_pool; 3990 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 3991 }; 3992 3993 static inline const char * 3994 deleg_perm_type(zfs_deleg_note_t note) 3995 { 3996 /* subcommands */ 3997 switch (note) { 3998 /* SUBCOMMANDS */ 3999 /* OTHER */ 4000 case ZFS_DELEG_NOTE_GROUPQUOTA: 4001 case ZFS_DELEG_NOTE_GROUPUSED: 4002 case ZFS_DELEG_NOTE_USERPROP: 4003 case ZFS_DELEG_NOTE_USERQUOTA: 4004 case ZFS_DELEG_NOTE_USERUSED: 4005 /* other */ 4006 return (gettext("other")); 4007 default: 4008 return (gettext("subcommand")); 4009 } 4010 } 4011 4012 static int inline 4013 who_type2weight(zfs_deleg_who_type_t who_type) 4014 { 4015 int res; 4016 switch (who_type) { 4017 case ZFS_DELEG_NAMED_SET_SETS: 4018 case ZFS_DELEG_NAMED_SET: 4019 res = 0; 4020 break; 4021 case ZFS_DELEG_CREATE_SETS: 4022 case ZFS_DELEG_CREATE: 4023 res = 1; 4024 break; 4025 case ZFS_DELEG_USER_SETS: 4026 case ZFS_DELEG_USER: 4027 res = 2; 4028 break; 4029 case ZFS_DELEG_GROUP_SETS: 4030 case ZFS_DELEG_GROUP: 4031 res = 3; 4032 break; 4033 case ZFS_DELEG_EVERYONE_SETS: 4034 case ZFS_DELEG_EVERYONE: 4035 res = 4; 4036 break; 4037 default: 4038 res = -1; 4039 } 4040 4041 return (res); 4042 } 4043 4044 /* ARGSUSED */ 4045 static int 4046 who_perm_compare(const void *larg, const void *rarg, void *unused) 4047 { 4048 const who_perm_node_t *l = larg; 4049 const who_perm_node_t *r = rarg; 4050 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4051 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4052 int lweight = who_type2weight(ltype); 4053 int rweight = who_type2weight(rtype); 4054 int res = lweight - rweight; 4055 if (res == 0) 4056 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4057 ZFS_MAX_DELEG_NAME-1); 4058 4059 if (res == 0) 4060 return (0); 4061 if (res > 0) 4062 return (1); 4063 else 4064 return (-1); 4065 } 4066 4067 /* ARGSUSED */ 4068 static int 4069 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4070 { 4071 const deleg_perm_node_t *l = larg; 4072 const deleg_perm_node_t *r = rarg; 4073 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4074 ZFS_MAX_DELEG_NAME-1); 4075 4076 if (res == 0) 4077 return (0); 4078 4079 if (res > 0) 4080 return (1); 4081 else 4082 return (-1); 4083 } 4084 4085 static inline void 4086 fs_perm_set_init(fs_perm_set_t *fspset) 4087 { 4088 bzero(fspset, sizeof (fs_perm_set_t)); 4089 4090 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4091 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4092 NULL, UU_DEFAULT)) == NULL) 4093 nomem(); 4094 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4095 UU_DEFAULT)) == NULL) 4096 nomem(); 4097 4098 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4099 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4100 who_perm_node_t, who_avl_node), who_perm_compare, 4101 UU_DEFAULT)) == NULL) 4102 nomem(); 4103 4104 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4105 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4106 who_perm_node_t, who_avl_node), who_perm_compare, 4107 UU_DEFAULT)) == NULL) 4108 nomem(); 4109 4110 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4111 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4112 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4113 == NULL) 4114 nomem(); 4115 } 4116 4117 static inline void fs_perm_fini(fs_perm_t *); 4118 static inline void who_perm_fini(who_perm_t *); 4119 4120 static inline void 4121 fs_perm_set_fini(fs_perm_set_t *fspset) 4122 { 4123 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4124 4125 while (node != NULL) { 4126 fs_perm_node_t *next_node = 4127 uu_list_next(fspset->fsps_list, node); 4128 fs_perm_t *fsperm = &node->fspn_fsperm; 4129 fs_perm_fini(fsperm); 4130 uu_list_remove(fspset->fsps_list, node); 4131 free(node); 4132 node = next_node; 4133 } 4134 4135 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4136 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4137 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4138 } 4139 4140 static inline void 4141 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4142 const char *name) 4143 { 4144 deleg_perm->dp_who_type = type; 4145 deleg_perm->dp_name = name; 4146 } 4147 4148 static inline void 4149 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4150 zfs_deleg_who_type_t type, const char *name) 4151 { 4152 uu_avl_pool_t *pool; 4153 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4154 4155 bzero(who_perm, sizeof (who_perm_t)); 4156 4157 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4158 UU_DEFAULT)) == NULL) 4159 nomem(); 4160 4161 who_perm->who_type = type; 4162 who_perm->who_name = name; 4163 who_perm->who_fsperm = fsperm; 4164 } 4165 4166 static inline void 4167 who_perm_fini(who_perm_t *who_perm) 4168 { 4169 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4170 4171 while (node != NULL) { 4172 deleg_perm_node_t *next_node = 4173 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4174 4175 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4176 free(node); 4177 node = next_node; 4178 } 4179 4180 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4181 } 4182 4183 static inline void 4184 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4185 { 4186 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4187 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4188 4189 bzero(fsperm, sizeof (fs_perm_t)); 4190 4191 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4192 == NULL) 4193 nomem(); 4194 4195 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4196 == NULL) 4197 nomem(); 4198 4199 fsperm->fsp_set = fspset; 4200 fsperm->fsp_name = fsname; 4201 } 4202 4203 static inline void 4204 fs_perm_fini(fs_perm_t *fsperm) 4205 { 4206 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4207 while (node != NULL) { 4208 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4209 node); 4210 who_perm_t *who_perm = &node->who_perm; 4211 who_perm_fini(who_perm); 4212 uu_avl_remove(fsperm->fsp_sc_avl, node); 4213 free(node); 4214 node = next_node; 4215 } 4216 4217 node = uu_avl_first(fsperm->fsp_uge_avl); 4218 while (node != NULL) { 4219 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4220 node); 4221 who_perm_t *who_perm = &node->who_perm; 4222 who_perm_fini(who_perm); 4223 uu_avl_remove(fsperm->fsp_uge_avl, node); 4224 free(node); 4225 node = next_node; 4226 } 4227 4228 uu_avl_destroy(fsperm->fsp_sc_avl); 4229 uu_avl_destroy(fsperm->fsp_uge_avl); 4230 } 4231 4232 static void inline 4233 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4234 zfs_deleg_who_type_t who_type, const char *name, char locality) 4235 { 4236 uu_avl_index_t idx = 0; 4237 4238 deleg_perm_node_t *found_node = NULL; 4239 deleg_perm_t *deleg_perm = &node->dpn_perm; 4240 4241 deleg_perm_init(deleg_perm, who_type, name); 4242 4243 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4244 == NULL) 4245 uu_avl_insert(avl, node, idx); 4246 else { 4247 node = found_node; 4248 deleg_perm = &node->dpn_perm; 4249 } 4250 4251 4252 switch (locality) { 4253 case ZFS_DELEG_LOCAL: 4254 deleg_perm->dp_local = B_TRUE; 4255 break; 4256 case ZFS_DELEG_DESCENDENT: 4257 deleg_perm->dp_descend = B_TRUE; 4258 break; 4259 case ZFS_DELEG_NA: 4260 break; 4261 default: 4262 assert(B_FALSE); /* invalid locality */ 4263 } 4264 } 4265 4266 static inline int 4267 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4268 { 4269 nvpair_t *nvp = NULL; 4270 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4271 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4272 zfs_deleg_who_type_t who_type = who_perm->who_type; 4273 4274 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4275 const char *name = nvpair_name(nvp); 4276 data_type_t type = nvpair_type(nvp); 4277 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4278 deleg_perm_node_t *node = 4279 safe_malloc(sizeof (deleg_perm_node_t)); 4280 4281 assert(type == DATA_TYPE_BOOLEAN); 4282 4283 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4284 set_deleg_perm_node(avl, node, who_type, name, locality); 4285 } 4286 4287 return (0); 4288 } 4289 4290 static inline int 4291 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4292 { 4293 nvpair_t *nvp = NULL; 4294 fs_perm_set_t *fspset = fsperm->fsp_set; 4295 4296 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4297 nvlist_t *nvl2 = NULL; 4298 const char *name = nvpair_name(nvp); 4299 uu_avl_t *avl = NULL; 4300 uu_avl_pool_t *avl_pool; 4301 zfs_deleg_who_type_t perm_type = name[0]; 4302 char perm_locality = name[1]; 4303 const char *perm_name = name + 3; 4304 boolean_t is_set = B_TRUE; 4305 who_perm_t *who_perm = NULL; 4306 4307 assert('$' == name[2]); 4308 4309 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4310 return (-1); 4311 4312 switch (perm_type) { 4313 case ZFS_DELEG_CREATE: 4314 case ZFS_DELEG_CREATE_SETS: 4315 case ZFS_DELEG_NAMED_SET: 4316 case ZFS_DELEG_NAMED_SET_SETS: 4317 avl_pool = fspset->fsps_named_set_avl_pool; 4318 avl = fsperm->fsp_sc_avl; 4319 break; 4320 case ZFS_DELEG_USER: 4321 case ZFS_DELEG_USER_SETS: 4322 case ZFS_DELEG_GROUP: 4323 case ZFS_DELEG_GROUP_SETS: 4324 case ZFS_DELEG_EVERYONE: 4325 case ZFS_DELEG_EVERYONE_SETS: 4326 avl_pool = fspset->fsps_who_perm_avl_pool; 4327 avl = fsperm->fsp_uge_avl; 4328 break; 4329 } 4330 4331 if (is_set) { 4332 who_perm_node_t *found_node = NULL; 4333 who_perm_node_t *node = safe_malloc( 4334 sizeof (who_perm_node_t)); 4335 who_perm = &node->who_perm; 4336 uu_avl_index_t idx = 0; 4337 4338 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4339 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4340 4341 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4342 == NULL) { 4343 if (avl == fsperm->fsp_uge_avl) { 4344 uid_t rid = 0; 4345 struct passwd *p = NULL; 4346 struct group *g = NULL; 4347 const char *nice_name = NULL; 4348 4349 switch (perm_type) { 4350 case ZFS_DELEG_USER_SETS: 4351 case ZFS_DELEG_USER: 4352 rid = atoi(perm_name); 4353 p = getpwuid(rid); 4354 if (p) 4355 nice_name = p->pw_name; 4356 break; 4357 case ZFS_DELEG_GROUP_SETS: 4358 case ZFS_DELEG_GROUP: 4359 rid = atoi(perm_name); 4360 g = getgrgid(rid); 4361 if (g) 4362 nice_name = g->gr_name; 4363 break; 4364 } 4365 4366 if (nice_name != NULL) 4367 (void) strlcpy( 4368 node->who_perm.who_ug_name, 4369 nice_name, 256); 4370 } 4371 4372 uu_avl_insert(avl, node, idx); 4373 } else { 4374 node = found_node; 4375 who_perm = &node->who_perm; 4376 } 4377 } 4378 4379 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4380 } 4381 4382 return (0); 4383 } 4384 4385 static inline int 4386 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4387 { 4388 nvpair_t *nvp = NULL; 4389 uu_avl_index_t idx = 0; 4390 4391 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4392 nvlist_t *nvl2 = NULL; 4393 const char *fsname = nvpair_name(nvp); 4394 data_type_t type = nvpair_type(nvp); 4395 fs_perm_t *fsperm = NULL; 4396 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4397 if (node == NULL) 4398 nomem(); 4399 4400 fsperm = &node->fspn_fsperm; 4401 4402 assert(DATA_TYPE_NVLIST == type); 4403 4404 uu_list_node_init(node, &node->fspn_list_node, 4405 fspset->fsps_list_pool); 4406 4407 idx = uu_list_numnodes(fspset->fsps_list); 4408 fs_perm_init(fsperm, fspset, fsname); 4409 4410 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4411 return (-1); 4412 4413 (void) parse_fs_perm(fsperm, nvl2); 4414 4415 uu_list_insert(fspset->fsps_list, node, idx); 4416 } 4417 4418 return (0); 4419 } 4420 4421 static inline const char * 4422 deleg_perm_comment(zfs_deleg_note_t note) 4423 { 4424 const char *str = ""; 4425 4426 /* subcommands */ 4427 switch (note) { 4428 /* SUBCOMMANDS */ 4429 case ZFS_DELEG_NOTE_ALLOW: 4430 str = gettext("Must also have the permission that is being" 4431 "\n\t\t\t\tallowed"); 4432 break; 4433 case ZFS_DELEG_NOTE_CLONE: 4434 str = gettext("Must also have the 'create' ability and 'mount'" 4435 "\n\t\t\t\tability in the origin file system"); 4436 break; 4437 case ZFS_DELEG_NOTE_CREATE: 4438 str = gettext("Must also have the 'mount' ability"); 4439 break; 4440 case ZFS_DELEG_NOTE_DESTROY: 4441 str = gettext("Must also have the 'mount' ability"); 4442 break; 4443 case ZFS_DELEG_NOTE_DIFF: 4444 str = gettext("Allows lookup of paths within a dataset;" 4445 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4446 "\n\t\t\t\tin order to use zfs diff"); 4447 break; 4448 case ZFS_DELEG_NOTE_HOLD: 4449 str = gettext("Allows adding a user hold to a snapshot"); 4450 break; 4451 case ZFS_DELEG_NOTE_MOUNT: 4452 str = gettext("Allows mount/umount of ZFS datasets"); 4453 break; 4454 case ZFS_DELEG_NOTE_PROMOTE: 4455 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4456 " 'promote' ability in the origin file system"); 4457 break; 4458 case ZFS_DELEG_NOTE_RECEIVE: 4459 str = gettext("Must also have the 'mount' and 'create'" 4460 " ability"); 4461 break; 4462 case ZFS_DELEG_NOTE_RELEASE: 4463 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4464 "might destroy the snapshot"); 4465 break; 4466 case ZFS_DELEG_NOTE_RENAME: 4467 str = gettext("Must also have the 'mount' and 'create'" 4468 "\n\t\t\t\tability in the new parent"); 4469 break; 4470 case ZFS_DELEG_NOTE_ROLLBACK: 4471 str = gettext(""); 4472 break; 4473 case ZFS_DELEG_NOTE_SEND: 4474 str = gettext(""); 4475 break; 4476 case ZFS_DELEG_NOTE_SHARE: 4477 str = gettext("Allows sharing file systems over NFS or SMB" 4478 "\n\t\t\t\tprotocols"); 4479 break; 4480 case ZFS_DELEG_NOTE_SNAPSHOT: 4481 str = gettext(""); 4482 break; 4483 /* 4484 * case ZFS_DELEG_NOTE_VSCAN: 4485 * str = gettext(""); 4486 * break; 4487 */ 4488 /* OTHER */ 4489 case ZFS_DELEG_NOTE_GROUPQUOTA: 4490 str = gettext("Allows accessing any groupquota@... property"); 4491 break; 4492 case ZFS_DELEG_NOTE_GROUPUSED: 4493 str = gettext("Allows reading any groupused@... property"); 4494 break; 4495 case ZFS_DELEG_NOTE_USERPROP: 4496 str = gettext("Allows changing any user property"); 4497 break; 4498 case ZFS_DELEG_NOTE_USERQUOTA: 4499 str = gettext("Allows accessing any userquota@... property"); 4500 break; 4501 case ZFS_DELEG_NOTE_USERUSED: 4502 str = gettext("Allows reading any userused@... property"); 4503 break; 4504 /* other */ 4505 default: 4506 str = ""; 4507 } 4508 4509 return (str); 4510 } 4511 4512 struct allow_opts { 4513 boolean_t local; 4514 boolean_t descend; 4515 boolean_t user; 4516 boolean_t group; 4517 boolean_t everyone; 4518 boolean_t create; 4519 boolean_t set; 4520 boolean_t recursive; /* unallow only */ 4521 boolean_t prt_usage; 4522 4523 boolean_t prt_perms; 4524 char *who; 4525 char *perms; 4526 const char *dataset; 4527 }; 4528 4529 static inline int 4530 prop_cmp(const void *a, const void *b) 4531 { 4532 const char *str1 = *(const char **)a; 4533 const char *str2 = *(const char **)b; 4534 return (strcmp(str1, str2)); 4535 } 4536 4537 static void 4538 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4539 { 4540 const char *opt_desc[] = { 4541 "-h", gettext("show this help message and exit"), 4542 "-l", gettext("set permission locally"), 4543 "-d", gettext("set permission for descents"), 4544 "-u", gettext("set permission for user"), 4545 "-g", gettext("set permission for group"), 4546 "-e", gettext("set permission for everyone"), 4547 "-c", gettext("set create time permission"), 4548 "-s", gettext("define permission set"), 4549 /* unallow only */ 4550 "-r", gettext("remove permissions recursively"), 4551 }; 4552 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4553 size_t allow_size = unallow_size - 2; 4554 const char *props[ZFS_NUM_PROPS]; 4555 int i; 4556 size_t count = 0; 4557 FILE *fp = requested ? stdout : stderr; 4558 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4559 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4560 4561 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4562 HELP_ALLOW)); 4563 (void) fprintf(fp, gettext("Options:\n")); 4564 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4565 const char *opt = opt_desc[i++]; 4566 const char *optdsc = opt_desc[i]; 4567 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4568 } 4569 4570 (void) fprintf(fp, gettext("\nThe following permissions are " 4571 "supported:\n\n")); 4572 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4573 gettext("NOTES")); 4574 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4575 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4576 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4577 const char *perm_type = deleg_perm_type(perm_note); 4578 const char *perm_comment = deleg_perm_comment(perm_note); 4579 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4580 } 4581 4582 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4583 zprop_desc_t *pd = &pdtbl[i]; 4584 if (pd->pd_visible != B_TRUE) 4585 continue; 4586 4587 if (pd->pd_attr == PROP_READONLY) 4588 continue; 4589 4590 props[count++] = pd->pd_name; 4591 } 4592 props[count] = NULL; 4593 4594 qsort(props, count, sizeof (char *), prop_cmp); 4595 4596 for (i = 0; i < count; i++) 4597 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4598 4599 if (msg != NULL) 4600 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4601 4602 exit(requested ? 0 : 2); 4603 } 4604 4605 static inline const char * 4606 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4607 char **permsp) 4608 { 4609 if (un && argc == expected_argc - 1) 4610 *permsp = NULL; 4611 else if (argc == expected_argc) 4612 *permsp = argv[argc - 2]; 4613 else 4614 allow_usage(un, B_FALSE, 4615 gettext("wrong number of parameters\n")); 4616 4617 return (argv[argc - 1]); 4618 } 4619 4620 static void 4621 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4622 { 4623 int uge_sum = opts->user + opts->group + opts->everyone; 4624 int csuge_sum = opts->create + opts->set + uge_sum; 4625 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4626 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4627 4628 if (uge_sum > 1) 4629 allow_usage(un, B_FALSE, 4630 gettext("-u, -g, and -e are mutually exclusive\n")); 4631 4632 if (opts->prt_usage) 4633 if (argc == 0 && all_sum == 0) 4634 allow_usage(un, B_TRUE, NULL); 4635 else 4636 usage(B_FALSE); 4637 4638 if (opts->set) { 4639 if (csuge_sum > 1) 4640 allow_usage(un, B_FALSE, 4641 gettext("invalid options combined with -s\n")); 4642 4643 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4644 if (argv[0][0] != '@') 4645 allow_usage(un, B_FALSE, 4646 gettext("invalid set name: missing '@' prefix\n")); 4647 opts->who = argv[0]; 4648 } else if (opts->create) { 4649 if (ldcsuge_sum > 1) 4650 allow_usage(un, B_FALSE, 4651 gettext("invalid options combined with -c\n")); 4652 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4653 } else if (opts->everyone) { 4654 if (csuge_sum > 1) 4655 allow_usage(un, B_FALSE, 4656 gettext("invalid options combined with -e\n")); 4657 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4658 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4659 == 0) { 4660 opts->everyone = B_TRUE; 4661 argc--; 4662 argv++; 4663 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4664 } else if (argc == 1 && !un) { 4665 opts->prt_perms = B_TRUE; 4666 opts->dataset = argv[argc-1]; 4667 } else { 4668 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4669 opts->who = argv[0]; 4670 } 4671 4672 if (!opts->local && !opts->descend) { 4673 opts->local = B_TRUE; 4674 opts->descend = B_TRUE; 4675 } 4676 } 4677 4678 static void 4679 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4680 const char *who, char *perms, nvlist_t *top_nvl) 4681 { 4682 int i; 4683 char ld[2] = { '\0', '\0' }; 4684 char who_buf[ZFS_MAXNAMELEN+32]; 4685 char base_type; 4686 char set_type; 4687 nvlist_t *base_nvl = NULL; 4688 nvlist_t *set_nvl = NULL; 4689 nvlist_t *nvl; 4690 4691 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4692 nomem(); 4693 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4694 nomem(); 4695 4696 switch (type) { 4697 case ZFS_DELEG_NAMED_SET_SETS: 4698 case ZFS_DELEG_NAMED_SET: 4699 set_type = ZFS_DELEG_NAMED_SET_SETS; 4700 base_type = ZFS_DELEG_NAMED_SET; 4701 ld[0] = ZFS_DELEG_NA; 4702 break; 4703 case ZFS_DELEG_CREATE_SETS: 4704 case ZFS_DELEG_CREATE: 4705 set_type = ZFS_DELEG_CREATE_SETS; 4706 base_type = ZFS_DELEG_CREATE; 4707 ld[0] = ZFS_DELEG_NA; 4708 break; 4709 case ZFS_DELEG_USER_SETS: 4710 case ZFS_DELEG_USER: 4711 set_type = ZFS_DELEG_USER_SETS; 4712 base_type = ZFS_DELEG_USER; 4713 if (local) 4714 ld[0] = ZFS_DELEG_LOCAL; 4715 if (descend) 4716 ld[1] = ZFS_DELEG_DESCENDENT; 4717 break; 4718 case ZFS_DELEG_GROUP_SETS: 4719 case ZFS_DELEG_GROUP: 4720 set_type = ZFS_DELEG_GROUP_SETS; 4721 base_type = ZFS_DELEG_GROUP; 4722 if (local) 4723 ld[0] = ZFS_DELEG_LOCAL; 4724 if (descend) 4725 ld[1] = ZFS_DELEG_DESCENDENT; 4726 break; 4727 case ZFS_DELEG_EVERYONE_SETS: 4728 case ZFS_DELEG_EVERYONE: 4729 set_type = ZFS_DELEG_EVERYONE_SETS; 4730 base_type = ZFS_DELEG_EVERYONE; 4731 if (local) 4732 ld[0] = ZFS_DELEG_LOCAL; 4733 if (descend) 4734 ld[1] = ZFS_DELEG_DESCENDENT; 4735 } 4736 4737 if (perms != NULL) { 4738 char *curr = perms; 4739 char *end = curr + strlen(perms); 4740 4741 while (curr < end) { 4742 char *delim = strchr(curr, ','); 4743 if (delim == NULL) 4744 delim = end; 4745 else 4746 *delim = '\0'; 4747 4748 if (curr[0] == '@') 4749 nvl = set_nvl; 4750 else 4751 nvl = base_nvl; 4752 4753 (void) nvlist_add_boolean(nvl, curr); 4754 if (delim != end) 4755 *delim = ','; 4756 curr = delim + 1; 4757 } 4758 4759 for (i = 0; i < 2; i++) { 4760 char locality = ld[i]; 4761 if (locality == 0) 4762 continue; 4763 4764 if (!nvlist_empty(base_nvl)) { 4765 if (who != NULL) 4766 (void) snprintf(who_buf, 4767 sizeof (who_buf), "%c%c$%s", 4768 base_type, locality, who); 4769 else 4770 (void) snprintf(who_buf, 4771 sizeof (who_buf), "%c%c$", 4772 base_type, locality); 4773 4774 (void) nvlist_add_nvlist(top_nvl, who_buf, 4775 base_nvl); 4776 } 4777 4778 4779 if (!nvlist_empty(set_nvl)) { 4780 if (who != NULL) 4781 (void) snprintf(who_buf, 4782 sizeof (who_buf), "%c%c$%s", 4783 set_type, locality, who); 4784 else 4785 (void) snprintf(who_buf, 4786 sizeof (who_buf), "%c%c$", 4787 set_type, locality); 4788 4789 (void) nvlist_add_nvlist(top_nvl, who_buf, 4790 set_nvl); 4791 } 4792 } 4793 } else { 4794 for (i = 0; i < 2; i++) { 4795 char locality = ld[i]; 4796 if (locality == 0) 4797 continue; 4798 4799 if (who != NULL) 4800 (void) snprintf(who_buf, sizeof (who_buf), 4801 "%c%c$%s", base_type, locality, who); 4802 else 4803 (void) snprintf(who_buf, sizeof (who_buf), 4804 "%c%c$", base_type, locality); 4805 (void) nvlist_add_boolean(top_nvl, who_buf); 4806 4807 if (who != NULL) 4808 (void) snprintf(who_buf, sizeof (who_buf), 4809 "%c%c$%s", set_type, locality, who); 4810 else 4811 (void) snprintf(who_buf, sizeof (who_buf), 4812 "%c%c$", set_type, locality); 4813 (void) nvlist_add_boolean(top_nvl, who_buf); 4814 } 4815 } 4816 } 4817 4818 static int 4819 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4820 { 4821 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4822 nomem(); 4823 4824 if (opts->set) { 4825 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4826 opts->descend, opts->who, opts->perms, *nvlp); 4827 } else if (opts->create) { 4828 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4829 opts->descend, NULL, opts->perms, *nvlp); 4830 } else if (opts->everyone) { 4831 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4832 opts->descend, NULL, opts->perms, *nvlp); 4833 } else { 4834 char *curr = opts->who; 4835 char *end = curr + strlen(curr); 4836 4837 while (curr < end) { 4838 const char *who; 4839 zfs_deleg_who_type_t who_type; 4840 char *endch; 4841 char *delim = strchr(curr, ','); 4842 char errbuf[256]; 4843 char id[64]; 4844 struct passwd *p = NULL; 4845 struct group *g = NULL; 4846 4847 uid_t rid; 4848 if (delim == NULL) 4849 delim = end; 4850 else 4851 *delim = '\0'; 4852 4853 rid = (uid_t)strtol(curr, &endch, 0); 4854 if (opts->user) { 4855 who_type = ZFS_DELEG_USER; 4856 if (*endch != '\0') 4857 p = getpwnam(curr); 4858 else 4859 p = getpwuid(rid); 4860 4861 if (p != NULL) 4862 rid = p->pw_uid; 4863 else { 4864 (void) snprintf(errbuf, 256, gettext( 4865 "invalid user %s"), curr); 4866 allow_usage(un, B_TRUE, errbuf); 4867 } 4868 } else if (opts->group) { 4869 who_type = ZFS_DELEG_GROUP; 4870 if (*endch != '\0') 4871 g = getgrnam(curr); 4872 else 4873 g = getgrgid(rid); 4874 4875 if (g != NULL) 4876 rid = g->gr_gid; 4877 else { 4878 (void) snprintf(errbuf, 256, gettext( 4879 "invalid group %s"), curr); 4880 allow_usage(un, B_TRUE, errbuf); 4881 } 4882 } else { 4883 if (*endch != '\0') { 4884 p = getpwnam(curr); 4885 } else { 4886 p = getpwuid(rid); 4887 } 4888 4889 if (p == NULL) 4890 if (*endch != '\0') { 4891 g = getgrnam(curr); 4892 } else { 4893 g = getgrgid(rid); 4894 } 4895 4896 if (p != NULL) { 4897 who_type = ZFS_DELEG_USER; 4898 rid = p->pw_uid; 4899 } else if (g != NULL) { 4900 who_type = ZFS_DELEG_GROUP; 4901 rid = g->gr_gid; 4902 } else { 4903 (void) snprintf(errbuf, 256, gettext( 4904 "invalid user/group %s"), curr); 4905 allow_usage(un, B_TRUE, errbuf); 4906 } 4907 } 4908 4909 (void) sprintf(id, "%u", rid); 4910 who = id; 4911 4912 store_allow_perm(who_type, opts->local, 4913 opts->descend, who, opts->perms, *nvlp); 4914 curr = delim + 1; 4915 } 4916 } 4917 4918 return (0); 4919 } 4920 4921 static void 4922 print_set_creat_perms(uu_avl_t *who_avl) 4923 { 4924 const char *sc_title[] = { 4925 gettext("Permission sets:\n"), 4926 gettext("Create time permissions:\n"), 4927 NULL 4928 }; 4929 const char **title_ptr = sc_title; 4930 who_perm_node_t *who_node = NULL; 4931 int prev_weight = -1; 4932 4933 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4934 who_node = uu_avl_next(who_avl, who_node)) { 4935 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4936 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4937 const char *who_name = who_node->who_perm.who_name; 4938 int weight = who_type2weight(who_type); 4939 boolean_t first = B_TRUE; 4940 deleg_perm_node_t *deleg_node; 4941 4942 if (prev_weight != weight) { 4943 (void) printf(*title_ptr++); 4944 prev_weight = weight; 4945 } 4946 4947 if (who_name == NULL || strnlen(who_name, 1) == 0) 4948 (void) printf("\t"); 4949 else 4950 (void) printf("\t%s ", who_name); 4951 4952 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4953 deleg_node = uu_avl_next(avl, deleg_node)) { 4954 if (first) { 4955 (void) printf("%s", 4956 deleg_node->dpn_perm.dp_name); 4957 first = B_FALSE; 4958 } else 4959 (void) printf(",%s", 4960 deleg_node->dpn_perm.dp_name); 4961 } 4962 4963 (void) printf("\n"); 4964 } 4965 } 4966 4967 static void inline 4968 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 4969 const char *title) 4970 { 4971 who_perm_node_t *who_node = NULL; 4972 boolean_t prt_title = B_TRUE; 4973 uu_avl_walk_t *walk; 4974 4975 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 4976 nomem(); 4977 4978 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 4979 const char *who_name = who_node->who_perm.who_name; 4980 const char *nice_who_name = who_node->who_perm.who_ug_name; 4981 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4982 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4983 char delim = ' '; 4984 deleg_perm_node_t *deleg_node; 4985 boolean_t prt_who = B_TRUE; 4986 4987 for (deleg_node = uu_avl_first(avl); 4988 deleg_node != NULL; 4989 deleg_node = uu_avl_next(avl, deleg_node)) { 4990 if (local != deleg_node->dpn_perm.dp_local || 4991 descend != deleg_node->dpn_perm.dp_descend) 4992 continue; 4993 4994 if (prt_who) { 4995 const char *who = NULL; 4996 if (prt_title) { 4997 prt_title = B_FALSE; 4998 (void) printf(title); 4999 } 5000 5001 switch (who_type) { 5002 case ZFS_DELEG_USER_SETS: 5003 case ZFS_DELEG_USER: 5004 who = gettext("user"); 5005 if (nice_who_name) 5006 who_name = nice_who_name; 5007 break; 5008 case ZFS_DELEG_GROUP_SETS: 5009 case ZFS_DELEG_GROUP: 5010 who = gettext("group"); 5011 if (nice_who_name) 5012 who_name = nice_who_name; 5013 break; 5014 case ZFS_DELEG_EVERYONE_SETS: 5015 case ZFS_DELEG_EVERYONE: 5016 who = gettext("everyone"); 5017 who_name = NULL; 5018 } 5019 5020 prt_who = B_FALSE; 5021 if (who_name == NULL) 5022 (void) printf("\t%s", who); 5023 else 5024 (void) printf("\t%s %s", who, who_name); 5025 } 5026 5027 (void) printf("%c%s", delim, 5028 deleg_node->dpn_perm.dp_name); 5029 delim = ','; 5030 } 5031 5032 if (!prt_who) 5033 (void) printf("\n"); 5034 } 5035 5036 uu_avl_walk_end(walk); 5037 } 5038 5039 static void 5040 print_fs_perms(fs_perm_set_t *fspset) 5041 { 5042 fs_perm_node_t *node = NULL; 5043 char buf[ZFS_MAXNAMELEN+32]; 5044 const char *dsname = buf; 5045 5046 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5047 node = uu_list_next(fspset->fsps_list, node)) { 5048 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5049 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5050 int left = 0; 5051 5052 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5053 gettext("---- Permissions on %s "), 5054 node->fspn_fsperm.fsp_name); 5055 (void) printf(dsname); 5056 left = 70 - strlen(buf); 5057 while (left-- > 0) 5058 (void) printf("-"); 5059 (void) printf("\n"); 5060 5061 print_set_creat_perms(sc_avl); 5062 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5063 gettext("Local permissions:\n")); 5064 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5065 gettext("Descendent permissions:\n")); 5066 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5067 gettext("Local+Descendent permissions:\n")); 5068 } 5069 } 5070 5071 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5072 5073 struct deleg_perms { 5074 boolean_t un; 5075 nvlist_t *nvl; 5076 }; 5077 5078 static int 5079 set_deleg_perms(zfs_handle_t *zhp, void *data) 5080 { 5081 struct deleg_perms *perms = (struct deleg_perms *)data; 5082 zfs_type_t zfs_type = zfs_get_type(zhp); 5083 5084 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5085 return (0); 5086 5087 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5088 } 5089 5090 static int 5091 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5092 { 5093 zfs_handle_t *zhp; 5094 nvlist_t *perm_nvl = NULL; 5095 nvlist_t *update_perm_nvl = NULL; 5096 int error = 1; 5097 int c; 5098 struct allow_opts opts = { 0 }; 5099 5100 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5101 5102 /* check opts */ 5103 while ((c = getopt(argc, argv, optstr)) != -1) { 5104 switch (c) { 5105 case 'l': 5106 opts.local = B_TRUE; 5107 break; 5108 case 'd': 5109 opts.descend = B_TRUE; 5110 break; 5111 case 'u': 5112 opts.user = B_TRUE; 5113 break; 5114 case 'g': 5115 opts.group = B_TRUE; 5116 break; 5117 case 'e': 5118 opts.everyone = B_TRUE; 5119 break; 5120 case 's': 5121 opts.set = B_TRUE; 5122 break; 5123 case 'c': 5124 opts.create = B_TRUE; 5125 break; 5126 case 'r': 5127 opts.recursive = B_TRUE; 5128 break; 5129 case ':': 5130 (void) fprintf(stderr, gettext("missing argument for " 5131 "'%c' option\n"), optopt); 5132 usage(B_FALSE); 5133 break; 5134 case 'h': 5135 opts.prt_usage = B_TRUE; 5136 break; 5137 case '?': 5138 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5139 optopt); 5140 usage(B_FALSE); 5141 } 5142 } 5143 5144 argc -= optind; 5145 argv += optind; 5146 5147 /* check arguments */ 5148 parse_allow_args(argc, argv, un, &opts); 5149 5150 /* try to open the dataset */ 5151 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5152 ZFS_TYPE_VOLUME)) == NULL) { 5153 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5154 opts.dataset); 5155 return (-1); 5156 } 5157 5158 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5159 goto cleanup2; 5160 5161 fs_perm_set_init(&fs_perm_set); 5162 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5163 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5164 goto cleanup1; 5165 } 5166 5167 if (opts.prt_perms) 5168 print_fs_perms(&fs_perm_set); 5169 else { 5170 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5171 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5172 goto cleanup0; 5173 5174 if (un && opts.recursive) { 5175 struct deleg_perms data = { un, update_perm_nvl }; 5176 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5177 &data) != 0) 5178 goto cleanup0; 5179 } 5180 } 5181 5182 error = 0; 5183 5184 cleanup0: 5185 nvlist_free(perm_nvl); 5186 if (update_perm_nvl != NULL) 5187 nvlist_free(update_perm_nvl); 5188 cleanup1: 5189 fs_perm_set_fini(&fs_perm_set); 5190 cleanup2: 5191 zfs_close(zhp); 5192 5193 return (error); 5194 } 5195 5196 static int 5197 zfs_do_allow(int argc, char **argv) 5198 { 5199 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5200 } 5201 5202 static int 5203 zfs_do_unallow(int argc, char **argv) 5204 { 5205 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5206 } 5207 5208 static int 5209 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5210 { 5211 int errors = 0; 5212 int i; 5213 const char *tag; 5214 boolean_t recursive = B_FALSE; 5215 const char *opts = holding ? "rt" : "r"; 5216 int c; 5217 5218 /* check options */ 5219 while ((c = getopt(argc, argv, opts)) != -1) { 5220 switch (c) { 5221 case 'r': 5222 recursive = B_TRUE; 5223 break; 5224 case '?': 5225 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5226 optopt); 5227 usage(B_FALSE); 5228 } 5229 } 5230 5231 argc -= optind; 5232 argv += optind; 5233 5234 /* check number of arguments */ 5235 if (argc < 2) 5236 usage(B_FALSE); 5237 5238 tag = argv[0]; 5239 --argc; 5240 ++argv; 5241 5242 if (holding && tag[0] == '.') { 5243 /* tags starting with '.' are reserved for libzfs */ 5244 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5245 usage(B_FALSE); 5246 } 5247 5248 for (i = 0; i < argc; ++i) { 5249 zfs_handle_t *zhp; 5250 char parent[ZFS_MAXNAMELEN]; 5251 const char *delim; 5252 char *path = argv[i]; 5253 5254 delim = strchr(path, '@'); 5255 if (delim == NULL) { 5256 (void) fprintf(stderr, 5257 gettext("'%s' is not a snapshot\n"), path); 5258 ++errors; 5259 continue; 5260 } 5261 (void) strncpy(parent, path, delim - path); 5262 parent[delim - path] = '\0'; 5263 5264 zhp = zfs_open(g_zfs, parent, 5265 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5266 if (zhp == NULL) { 5267 ++errors; 5268 continue; 5269 } 5270 if (holding) { 5271 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5272 ++errors; 5273 } else { 5274 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5275 ++errors; 5276 } 5277 zfs_close(zhp); 5278 } 5279 5280 return (errors != 0); 5281 } 5282 5283 /* 5284 * zfs hold [-r] [-t] <tag> <snap> ... 5285 * 5286 * -r Recursively hold 5287 * 5288 * Apply a user-hold with the given tag to the list of snapshots. 5289 */ 5290 static int 5291 zfs_do_hold(int argc, char **argv) 5292 { 5293 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5294 } 5295 5296 /* 5297 * zfs release [-r] <tag> <snap> ... 5298 * 5299 * -r Recursively release 5300 * 5301 * Release a user-hold with the given tag from the list of snapshots. 5302 */ 5303 static int 5304 zfs_do_release(int argc, char **argv) 5305 { 5306 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5307 } 5308 5309 typedef struct holds_cbdata { 5310 boolean_t cb_recursive; 5311 const char *cb_snapname; 5312 nvlist_t **cb_nvlp; 5313 size_t cb_max_namelen; 5314 size_t cb_max_taglen; 5315 } holds_cbdata_t; 5316 5317 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5318 #define DATETIME_BUF_LEN (32) 5319 /* 5320 * 5321 */ 5322 static void 5323 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5324 { 5325 int i; 5326 nvpair_t *nvp = NULL; 5327 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5328 const char *col; 5329 5330 if (!scripted) { 5331 for (i = 0; i < 3; i++) { 5332 col = gettext(hdr_cols[i]); 5333 if (i < 2) 5334 (void) printf("%-*s ", i ? tagwidth : nwidth, 5335 col); 5336 else 5337 (void) printf("%s\n", col); 5338 } 5339 } 5340 5341 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5342 char *zname = nvpair_name(nvp); 5343 nvlist_t *nvl2; 5344 nvpair_t *nvp2 = NULL; 5345 (void) nvpair_value_nvlist(nvp, &nvl2); 5346 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5347 char tsbuf[DATETIME_BUF_LEN]; 5348 char *tagname = nvpair_name(nvp2); 5349 uint64_t val = 0; 5350 time_t time; 5351 struct tm t; 5352 char sep = scripted ? '\t' : ' '; 5353 size_t sepnum = scripted ? 1 : 2; 5354 5355 (void) nvpair_value_uint64(nvp2, &val); 5356 time = (time_t)val; 5357 (void) localtime_r(&time, &t); 5358 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5359 gettext(STRFTIME_FMT_STR), &t); 5360 5361 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5362 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5363 } 5364 } 5365 } 5366 5367 /* 5368 * Generic callback function to list a dataset or snapshot. 5369 */ 5370 static int 5371 holds_callback(zfs_handle_t *zhp, void *data) 5372 { 5373 holds_cbdata_t *cbp = data; 5374 nvlist_t *top_nvl = *cbp->cb_nvlp; 5375 nvlist_t *nvl = NULL; 5376 nvpair_t *nvp = NULL; 5377 const char *zname = zfs_get_name(zhp); 5378 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5379 5380 if (cbp->cb_recursive) { 5381 const char *snapname; 5382 char *delim = strchr(zname, '@'); 5383 if (delim == NULL) 5384 return (0); 5385 5386 snapname = delim + 1; 5387 if (strcmp(cbp->cb_snapname, snapname)) 5388 return (0); 5389 } 5390 5391 if (zfs_get_holds(zhp, &nvl) != 0) 5392 return (-1); 5393 5394 if (znamelen > cbp->cb_max_namelen) 5395 cbp->cb_max_namelen = znamelen; 5396 5397 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5398 const char *tag = nvpair_name(nvp); 5399 size_t taglen = strnlen(tag, MAXNAMELEN); 5400 if (taglen > cbp->cb_max_taglen) 5401 cbp->cb_max_taglen = taglen; 5402 } 5403 5404 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5405 } 5406 5407 /* 5408 * zfs holds [-r] <snap> ... 5409 * 5410 * -r Recursively hold 5411 */ 5412 static int 5413 zfs_do_holds(int argc, char **argv) 5414 { 5415 int errors = 0; 5416 int c; 5417 int i; 5418 boolean_t scripted = B_FALSE; 5419 boolean_t recursive = B_FALSE; 5420 const char *opts = "rH"; 5421 nvlist_t *nvl; 5422 5423 int types = ZFS_TYPE_SNAPSHOT; 5424 holds_cbdata_t cb = { 0 }; 5425 5426 int limit = 0; 5427 int ret = 0; 5428 int flags = 0; 5429 5430 /* check options */ 5431 while ((c = getopt(argc, argv, opts)) != -1) { 5432 switch (c) { 5433 case 'r': 5434 recursive = B_TRUE; 5435 break; 5436 case 'H': 5437 scripted = B_TRUE; 5438 break; 5439 case '?': 5440 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5441 optopt); 5442 usage(B_FALSE); 5443 } 5444 } 5445 5446 if (recursive) { 5447 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5448 flags |= ZFS_ITER_RECURSE; 5449 } 5450 5451 argc -= optind; 5452 argv += optind; 5453 5454 /* check number of arguments */ 5455 if (argc < 1) 5456 usage(B_FALSE); 5457 5458 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5459 nomem(); 5460 5461 for (i = 0; i < argc; ++i) { 5462 char *snapshot = argv[i]; 5463 const char *delim; 5464 const char *snapname; 5465 5466 delim = strchr(snapshot, '@'); 5467 if (delim == NULL) { 5468 (void) fprintf(stderr, 5469 gettext("'%s' is not a snapshot\n"), snapshot); 5470 ++errors; 5471 continue; 5472 } 5473 snapname = delim + 1; 5474 if (recursive) 5475 snapshot[delim - snapshot] = '\0'; 5476 5477 cb.cb_recursive = recursive; 5478 cb.cb_snapname = snapname; 5479 cb.cb_nvlp = &nvl; 5480 5481 /* 5482 * 1. collect holds data, set format options 5483 */ 5484 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5485 holds_callback, &cb); 5486 if (ret != 0) 5487 ++errors; 5488 } 5489 5490 /* 5491 * 2. print holds data 5492 */ 5493 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5494 5495 if (nvlist_empty(nvl)) 5496 (void) printf(gettext("no datasets available\n")); 5497 5498 nvlist_free(nvl); 5499 5500 return (0 != errors); 5501 } 5502 5503 #define CHECK_SPINNER 30 5504 #define SPINNER_TIME 3 /* seconds */ 5505 #define MOUNT_TIME 5 /* seconds */ 5506 5507 static int 5508 get_one_dataset(zfs_handle_t *zhp, void *data) 5509 { 5510 static char *spin[] = { "-", "\\", "|", "/" }; 5511 static int spinval = 0; 5512 static int spincheck = 0; 5513 static time_t last_spin_time = (time_t)0; 5514 get_all_cb_t *cbp = data; 5515 zfs_type_t type = zfs_get_type(zhp); 5516 5517 if (cbp->cb_verbose) { 5518 if (--spincheck < 0) { 5519 time_t now = time(NULL); 5520 if (last_spin_time + SPINNER_TIME < now) { 5521 update_progress(spin[spinval++ % 4]); 5522 last_spin_time = now; 5523 } 5524 spincheck = CHECK_SPINNER; 5525 } 5526 } 5527 5528 /* 5529 * Interate over any nested datasets. 5530 */ 5531 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5532 zfs_close(zhp); 5533 return (1); 5534 } 5535 5536 /* 5537 * Skip any datasets whose type does not match. 5538 */ 5539 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5540 zfs_close(zhp); 5541 return (0); 5542 } 5543 libzfs_add_handle(cbp, zhp); 5544 assert(cbp->cb_used <= cbp->cb_alloc); 5545 5546 return (0); 5547 } 5548 5549 static void 5550 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5551 { 5552 get_all_cb_t cb = { 0 }; 5553 cb.cb_verbose = verbose; 5554 cb.cb_getone = get_one_dataset; 5555 5556 if (verbose) 5557 set_progress_header(gettext("Reading ZFS config")); 5558 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5559 5560 *dslist = cb.cb_handles; 5561 *count = cb.cb_used; 5562 5563 if (verbose) 5564 finish_progress(gettext("done.")); 5565 } 5566 5567 /* 5568 * Generic callback for sharing or mounting filesystems. Because the code is so 5569 * similar, we have a common function with an extra parameter to determine which 5570 * mode we are using. 5571 */ 5572 #define OP_SHARE 0x1 5573 #define OP_MOUNT 0x2 5574 5575 /* 5576 * Share or mount a dataset. 5577 */ 5578 static int 5579 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5580 boolean_t explicit, const char *options) 5581 { 5582 char mountpoint[ZFS_MAXPROPLEN]; 5583 char shareopts[ZFS_MAXPROPLEN]; 5584 char smbshareopts[ZFS_MAXPROPLEN]; 5585 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5586 struct mnttab mnt; 5587 uint64_t zoned, canmount; 5588 boolean_t shared_nfs, shared_smb; 5589 5590 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5591 5592 /* 5593 * Check to make sure we can mount/share this dataset. If we 5594 * are in the global zone and the filesystem is exported to a 5595 * local zone, or if we are in a local zone and the 5596 * filesystem is not exported, then it is an error. 5597 */ 5598 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5599 5600 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5601 if (!explicit) 5602 return (0); 5603 5604 (void) fprintf(stderr, gettext("cannot %s '%s': " 5605 "dataset is exported to a local zone\n"), cmdname, 5606 zfs_get_name(zhp)); 5607 return (1); 5608 5609 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5610 if (!explicit) 5611 return (0); 5612 5613 (void) fprintf(stderr, gettext("cannot %s '%s': " 5614 "permission denied\n"), cmdname, 5615 zfs_get_name(zhp)); 5616 return (1); 5617 } 5618 5619 /* 5620 * Ignore any filesystems which don't apply to us. This 5621 * includes those with a legacy mountpoint, or those with 5622 * legacy share options. 5623 */ 5624 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5625 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5626 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5627 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5628 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5629 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5630 5631 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5632 strcmp(smbshareopts, "off") == 0) { 5633 if (!explicit) 5634 return (0); 5635 5636 (void) fprintf(stderr, gettext("cannot share '%s': " 5637 "legacy share\n"), zfs_get_name(zhp)); 5638 (void) fprintf(stderr, gettext("use share(1M) to " 5639 "share this filesystem, or set " 5640 "sharenfs property on\n")); 5641 return (1); 5642 } 5643 5644 /* 5645 * We cannot share or mount legacy filesystems. If the 5646 * shareopts is non-legacy but the mountpoint is legacy, we 5647 * treat it as a legacy share. 5648 */ 5649 if (strcmp(mountpoint, "legacy") == 0) { 5650 if (!explicit) 5651 return (0); 5652 5653 (void) fprintf(stderr, gettext("cannot %s '%s': " 5654 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5655 (void) fprintf(stderr, gettext("use %s(1M) to " 5656 "%s this filesystem\n"), cmdname, cmdname); 5657 return (1); 5658 } 5659 5660 if (strcmp(mountpoint, "none") == 0) { 5661 if (!explicit) 5662 return (0); 5663 5664 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5665 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5666 return (1); 5667 } 5668 5669 /* 5670 * canmount explicit outcome 5671 * on no pass through 5672 * on yes pass through 5673 * off no return 0 5674 * off yes display error, return 1 5675 * noauto no return 0 5676 * noauto yes pass through 5677 */ 5678 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5679 if (canmount == ZFS_CANMOUNT_OFF) { 5680 if (!explicit) 5681 return (0); 5682 5683 (void) fprintf(stderr, gettext("cannot %s '%s': " 5684 "'canmount' property is set to 'off'\n"), cmdname, 5685 zfs_get_name(zhp)); 5686 return (1); 5687 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5688 return (0); 5689 } 5690 5691 /* 5692 * At this point, we have verified that the mountpoint and/or 5693 * shareopts are appropriate for auto management. If the 5694 * filesystem is already mounted or shared, return (failing 5695 * for explicit requests); otherwise mount or share the 5696 * filesystem. 5697 */ 5698 switch (op) { 5699 case OP_SHARE: 5700 5701 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5702 shared_smb = zfs_is_shared_smb(zhp, NULL); 5703 5704 if (shared_nfs && shared_smb || 5705 (shared_nfs && strcmp(shareopts, "on") == 0 && 5706 strcmp(smbshareopts, "off") == 0) || 5707 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5708 strcmp(shareopts, "off") == 0)) { 5709 if (!explicit) 5710 return (0); 5711 5712 (void) fprintf(stderr, gettext("cannot share " 5713 "'%s': filesystem already shared\n"), 5714 zfs_get_name(zhp)); 5715 return (1); 5716 } 5717 5718 if (!zfs_is_mounted(zhp, NULL) && 5719 zfs_mount(zhp, NULL, 0) != 0) 5720 return (1); 5721 5722 if (protocol == NULL) { 5723 if (zfs_shareall(zhp) != 0) 5724 return (1); 5725 } else if (strcmp(protocol, "nfs") == 0) { 5726 if (zfs_share_nfs(zhp)) 5727 return (1); 5728 } else if (strcmp(protocol, "smb") == 0) { 5729 if (zfs_share_smb(zhp)) 5730 return (1); 5731 } else { 5732 (void) fprintf(stderr, gettext("cannot share " 5733 "'%s': invalid share type '%s' " 5734 "specified\n"), 5735 zfs_get_name(zhp), protocol); 5736 return (1); 5737 } 5738 5739 break; 5740 5741 case OP_MOUNT: 5742 if (options == NULL) 5743 mnt.mnt_mntopts = ""; 5744 else 5745 mnt.mnt_mntopts = (char *)options; 5746 5747 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5748 zfs_is_mounted(zhp, NULL)) { 5749 if (!explicit) 5750 return (0); 5751 5752 (void) fprintf(stderr, gettext("cannot mount " 5753 "'%s': filesystem already mounted\n"), 5754 zfs_get_name(zhp)); 5755 return (1); 5756 } 5757 5758 if (zfs_mount(zhp, options, flags) != 0) 5759 return (1); 5760 break; 5761 } 5762 5763 return (0); 5764 } 5765 5766 /* 5767 * Reports progress in the form "(current/total)". Not thread-safe. 5768 */ 5769 static void 5770 report_mount_progress(int current, int total) 5771 { 5772 static time_t last_progress_time = 0; 5773 time_t now = time(NULL); 5774 char info[32]; 5775 5776 /* report 1..n instead of 0..n-1 */ 5777 ++current; 5778 5779 /* display header if we're here for the first time */ 5780 if (current == 1) { 5781 set_progress_header(gettext("Mounting ZFS filesystems")); 5782 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5783 /* too soon to report again */ 5784 return; 5785 } 5786 5787 last_progress_time = now; 5788 5789 (void) sprintf(info, "(%d/%d)", current, total); 5790 5791 if (current == total) 5792 finish_progress(info); 5793 else 5794 update_progress(info); 5795 } 5796 5797 static void 5798 append_options(char *mntopts, char *newopts) 5799 { 5800 int len = strlen(mntopts); 5801 5802 /* original length plus new string to append plus 1 for the comma */ 5803 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5804 (void) fprintf(stderr, gettext("the opts argument for " 5805 "'%c' option is too long (more than %d chars)\n"), 5806 "-o", MNT_LINE_MAX); 5807 usage(B_FALSE); 5808 } 5809 5810 if (*mntopts) 5811 mntopts[len++] = ','; 5812 5813 (void) strcpy(&mntopts[len], newopts); 5814 } 5815 5816 static int 5817 share_mount(int op, int argc, char **argv) 5818 { 5819 int do_all = 0; 5820 boolean_t verbose = B_FALSE; 5821 int c, ret = 0; 5822 char *options = NULL; 5823 int flags = 0; 5824 5825 /* check options */ 5826 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5827 != -1) { 5828 switch (c) { 5829 case 'a': 5830 do_all = 1; 5831 break; 5832 case 'v': 5833 verbose = B_TRUE; 5834 break; 5835 case 'o': 5836 if (*optarg == '\0') { 5837 (void) fprintf(stderr, gettext("empty mount " 5838 "options (-o) specified\n")); 5839 usage(B_FALSE); 5840 } 5841 5842 if (options == NULL) 5843 options = safe_malloc(MNT_LINE_MAX + 1); 5844 5845 /* option validation is done later */ 5846 append_options(options, optarg); 5847 break; 5848 5849 case 'O': 5850 flags |= MS_OVERLAY; 5851 break; 5852 case ':': 5853 (void) fprintf(stderr, gettext("missing argument for " 5854 "'%c' option\n"), optopt); 5855 usage(B_FALSE); 5856 break; 5857 case '?': 5858 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5859 optopt); 5860 usage(B_FALSE); 5861 } 5862 } 5863 5864 argc -= optind; 5865 argv += optind; 5866 5867 /* check number of arguments */ 5868 if (do_all) { 5869 zfs_handle_t **dslist = NULL; 5870 size_t i, count = 0; 5871 char *protocol = NULL; 5872 5873 if (op == OP_SHARE && argc > 0) { 5874 if (strcmp(argv[0], "nfs") != 0 && 5875 strcmp(argv[0], "smb") != 0) { 5876 (void) fprintf(stderr, gettext("share type " 5877 "must be 'nfs' or 'smb'\n")); 5878 usage(B_FALSE); 5879 } 5880 protocol = argv[0]; 5881 argc--; 5882 argv++; 5883 } 5884 5885 if (argc != 0) { 5886 (void) fprintf(stderr, gettext("too many arguments\n")); 5887 usage(B_FALSE); 5888 } 5889 5890 start_progress_timer(); 5891 get_all_datasets(&dslist, &count, verbose); 5892 5893 if (count == 0) 5894 return (0); 5895 5896 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5897 5898 for (i = 0; i < count; i++) { 5899 if (verbose) 5900 report_mount_progress(i, count); 5901 5902 if (share_mount_one(dslist[i], op, flags, protocol, 5903 B_FALSE, options) != 0) 5904 ret = 1; 5905 zfs_close(dslist[i]); 5906 } 5907 5908 free(dslist); 5909 } else if (argc == 0) { 5910 struct mnttab entry; 5911 5912 if ((op == OP_SHARE) || (options != NULL)) { 5913 (void) fprintf(stderr, gettext("missing filesystem " 5914 "argument (specify -a for all)\n")); 5915 usage(B_FALSE); 5916 } 5917 5918 /* 5919 * When mount is given no arguments, go through /etc/mnttab and 5920 * display any active ZFS mounts. We hide any snapshots, since 5921 * they are controlled automatically. 5922 */ 5923 rewind(mnttab_file); 5924 while (getmntent(mnttab_file, &entry) == 0) { 5925 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5926 strchr(entry.mnt_special, '@') != NULL) 5927 continue; 5928 5929 (void) printf("%-30s %s\n", entry.mnt_special, 5930 entry.mnt_mountp); 5931 } 5932 5933 } else { 5934 zfs_handle_t *zhp; 5935 5936 if (argc > 1) { 5937 (void) fprintf(stderr, 5938 gettext("too many arguments\n")); 5939 usage(B_FALSE); 5940 } 5941 5942 if ((zhp = zfs_open(g_zfs, argv[0], 5943 ZFS_TYPE_FILESYSTEM)) == NULL) { 5944 ret = 1; 5945 } else { 5946 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5947 options); 5948 zfs_close(zhp); 5949 } 5950 } 5951 5952 return (ret); 5953 } 5954 5955 /* 5956 * zfs mount -a [nfs] 5957 * zfs mount filesystem 5958 * 5959 * Mount all filesystems, or mount the given filesystem. 5960 */ 5961 static int 5962 zfs_do_mount(int argc, char **argv) 5963 { 5964 return (share_mount(OP_MOUNT, argc, argv)); 5965 } 5966 5967 /* 5968 * zfs share -a [nfs | smb] 5969 * zfs share filesystem 5970 * 5971 * Share all filesystems, or share the given filesystem. 5972 */ 5973 static int 5974 zfs_do_share(int argc, char **argv) 5975 { 5976 return (share_mount(OP_SHARE, argc, argv)); 5977 } 5978 5979 typedef struct unshare_unmount_node { 5980 zfs_handle_t *un_zhp; 5981 char *un_mountp; 5982 uu_avl_node_t un_avlnode; 5983 } unshare_unmount_node_t; 5984 5985 /* ARGSUSED */ 5986 static int 5987 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 5988 { 5989 const unshare_unmount_node_t *l = larg; 5990 const unshare_unmount_node_t *r = rarg; 5991 5992 return (strcmp(l->un_mountp, r->un_mountp)); 5993 } 5994 5995 /* 5996 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 5997 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 5998 * and unmount it appropriately. 5999 */ 6000 static int 6001 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6002 { 6003 zfs_handle_t *zhp; 6004 int ret = 0; 6005 struct stat64 statbuf; 6006 struct extmnttab entry; 6007 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6008 ino_t path_inode; 6009 6010 /* 6011 * Search for the path in /etc/mnttab. Rather than looking for the 6012 * specific path, which can be fooled by non-standard paths (i.e. ".." 6013 * or "//"), we stat() the path and search for the corresponding 6014 * (major,minor) device pair. 6015 */ 6016 if (stat64(path, &statbuf) != 0) { 6017 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6018 cmdname, path, strerror(errno)); 6019 return (1); 6020 } 6021 path_inode = statbuf.st_ino; 6022 6023 /* 6024 * Search for the given (major,minor) pair in the mount table. 6025 */ 6026 rewind(mnttab_file); 6027 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6028 if (entry.mnt_major == major(statbuf.st_dev) && 6029 entry.mnt_minor == minor(statbuf.st_dev)) 6030 break; 6031 } 6032 if (ret != 0) { 6033 if (op == OP_SHARE) { 6034 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6035 "currently mounted\n"), cmdname, path); 6036 return (1); 6037 } 6038 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6039 path); 6040 if ((ret = umount2(path, flags)) != 0) 6041 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6042 strerror(errno)); 6043 return (ret != 0); 6044 } 6045 6046 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6047 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6048 "filesystem\n"), cmdname, path); 6049 return (1); 6050 } 6051 6052 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6053 ZFS_TYPE_FILESYSTEM)) == NULL) 6054 return (1); 6055 6056 ret = 1; 6057 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6058 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6059 cmdname, path, strerror(errno)); 6060 goto out; 6061 } else if (statbuf.st_ino != path_inode) { 6062 (void) fprintf(stderr, gettext("cannot " 6063 "%s '%s': not a mountpoint\n"), cmdname, path); 6064 goto out; 6065 } 6066 6067 if (op == OP_SHARE) { 6068 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6069 char smbshare_prop[ZFS_MAXPROPLEN]; 6070 6071 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6072 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6073 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6074 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6075 6076 if (strcmp(nfs_mnt_prop, "off") == 0 && 6077 strcmp(smbshare_prop, "off") == 0) { 6078 (void) fprintf(stderr, gettext("cannot unshare " 6079 "'%s': legacy share\n"), path); 6080 (void) fprintf(stderr, gettext("use " 6081 "unshare(1M) to unshare this filesystem\n")); 6082 } else if (!zfs_is_shared(zhp)) { 6083 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6084 "not currently shared\n"), path); 6085 } else { 6086 ret = zfs_unshareall_bypath(zhp, path); 6087 } 6088 } else { 6089 char mtpt_prop[ZFS_MAXPROPLEN]; 6090 6091 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6092 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6093 6094 if (is_manual) { 6095 ret = zfs_unmount(zhp, NULL, flags); 6096 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6097 (void) fprintf(stderr, gettext("cannot unmount " 6098 "'%s': legacy mountpoint\n"), 6099 zfs_get_name(zhp)); 6100 (void) fprintf(stderr, gettext("use umount(1M) " 6101 "to unmount this filesystem\n")); 6102 } else { 6103 ret = zfs_unmountall(zhp, flags); 6104 } 6105 } 6106 6107 out: 6108 zfs_close(zhp); 6109 6110 return (ret != 0); 6111 } 6112 6113 /* 6114 * Generic callback for unsharing or unmounting a filesystem. 6115 */ 6116 static int 6117 unshare_unmount(int op, int argc, char **argv) 6118 { 6119 int do_all = 0; 6120 int flags = 0; 6121 int ret = 0; 6122 int c; 6123 zfs_handle_t *zhp; 6124 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6125 char sharesmb[ZFS_MAXPROPLEN]; 6126 6127 /* check options */ 6128 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6129 switch (c) { 6130 case 'a': 6131 do_all = 1; 6132 break; 6133 case 'f': 6134 flags = MS_FORCE; 6135 break; 6136 case '?': 6137 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6138 optopt); 6139 usage(B_FALSE); 6140 } 6141 } 6142 6143 argc -= optind; 6144 argv += optind; 6145 6146 if (do_all) { 6147 /* 6148 * We could make use of zfs_for_each() to walk all datasets in 6149 * the system, but this would be very inefficient, especially 6150 * since we would have to linearly search /etc/mnttab for each 6151 * one. Instead, do one pass through /etc/mnttab looking for 6152 * zfs entries and call zfs_unmount() for each one. 6153 * 6154 * Things get a little tricky if the administrator has created 6155 * mountpoints beneath other ZFS filesystems. In this case, we 6156 * have to unmount the deepest filesystems first. To accomplish 6157 * this, we place all the mountpoints in an AVL tree sorted by 6158 * the special type (dataset name), and walk the result in 6159 * reverse to make sure to get any snapshots first. 6160 */ 6161 struct mnttab entry; 6162 uu_avl_pool_t *pool; 6163 uu_avl_t *tree; 6164 unshare_unmount_node_t *node; 6165 uu_avl_index_t idx; 6166 uu_avl_walk_t *walk; 6167 6168 if (argc != 0) { 6169 (void) fprintf(stderr, gettext("too many arguments\n")); 6170 usage(B_FALSE); 6171 } 6172 6173 if (((pool = uu_avl_pool_create("unmount_pool", 6174 sizeof (unshare_unmount_node_t), 6175 offsetof(unshare_unmount_node_t, un_avlnode), 6176 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6177 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6178 nomem(); 6179 6180 rewind(mnttab_file); 6181 while (getmntent(mnttab_file, &entry) == 0) { 6182 6183 /* ignore non-ZFS entries */ 6184 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6185 continue; 6186 6187 /* ignore snapshots */ 6188 if (strchr(entry.mnt_special, '@') != NULL) 6189 continue; 6190 6191 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6192 ZFS_TYPE_FILESYSTEM)) == NULL) { 6193 ret = 1; 6194 continue; 6195 } 6196 6197 switch (op) { 6198 case OP_SHARE: 6199 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6200 nfs_mnt_prop, 6201 sizeof (nfs_mnt_prop), 6202 NULL, NULL, 0, B_FALSE) == 0); 6203 if (strcmp(nfs_mnt_prop, "off") != 0) 6204 break; 6205 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6206 nfs_mnt_prop, 6207 sizeof (nfs_mnt_prop), 6208 NULL, NULL, 0, B_FALSE) == 0); 6209 if (strcmp(nfs_mnt_prop, "off") == 0) 6210 continue; 6211 break; 6212 case OP_MOUNT: 6213 /* Ignore legacy mounts */ 6214 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6215 nfs_mnt_prop, 6216 sizeof (nfs_mnt_prop), 6217 NULL, NULL, 0, B_FALSE) == 0); 6218 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6219 continue; 6220 /* Ignore canmount=noauto mounts */ 6221 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6222 ZFS_CANMOUNT_NOAUTO) 6223 continue; 6224 default: 6225 break; 6226 } 6227 6228 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6229 node->un_zhp = zhp; 6230 node->un_mountp = safe_strdup(entry.mnt_mountp); 6231 6232 uu_avl_node_init(node, &node->un_avlnode, pool); 6233 6234 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6235 uu_avl_insert(tree, node, idx); 6236 } else { 6237 zfs_close(node->un_zhp); 6238 free(node->un_mountp); 6239 free(node); 6240 } 6241 } 6242 6243 /* 6244 * Walk the AVL tree in reverse, unmounting each filesystem and 6245 * removing it from the AVL tree in the process. 6246 */ 6247 if ((walk = uu_avl_walk_start(tree, 6248 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6249 nomem(); 6250 6251 while ((node = uu_avl_walk_next(walk)) != NULL) { 6252 uu_avl_remove(tree, node); 6253 6254 switch (op) { 6255 case OP_SHARE: 6256 if (zfs_unshareall_bypath(node->un_zhp, 6257 node->un_mountp) != 0) 6258 ret = 1; 6259 break; 6260 6261 case OP_MOUNT: 6262 if (zfs_unmount(node->un_zhp, 6263 node->un_mountp, flags) != 0) 6264 ret = 1; 6265 break; 6266 } 6267 6268 zfs_close(node->un_zhp); 6269 free(node->un_mountp); 6270 free(node); 6271 } 6272 6273 uu_avl_walk_end(walk); 6274 uu_avl_destroy(tree); 6275 uu_avl_pool_destroy(pool); 6276 6277 } else { 6278 if (argc != 1) { 6279 if (argc == 0) 6280 (void) fprintf(stderr, 6281 gettext("missing filesystem argument\n")); 6282 else 6283 (void) fprintf(stderr, 6284 gettext("too many arguments\n")); 6285 usage(B_FALSE); 6286 } 6287 6288 /* 6289 * We have an argument, but it may be a full path or a ZFS 6290 * filesystem. Pass full paths off to unmount_path() (shared by 6291 * manual_unmount), otherwise open the filesystem and pass to 6292 * zfs_unmount(). 6293 */ 6294 if (argv[0][0] == '/') 6295 return (unshare_unmount_path(op, argv[0], 6296 flags, B_FALSE)); 6297 6298 if ((zhp = zfs_open(g_zfs, argv[0], 6299 ZFS_TYPE_FILESYSTEM)) == NULL) 6300 return (1); 6301 6302 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6303 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6304 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6305 NULL, 0, B_FALSE) == 0); 6306 6307 switch (op) { 6308 case OP_SHARE: 6309 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6310 nfs_mnt_prop, 6311 sizeof (nfs_mnt_prop), 6312 NULL, NULL, 0, B_FALSE) == 0); 6313 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6314 sharesmb, sizeof (sharesmb), NULL, NULL, 6315 0, B_FALSE) == 0); 6316 6317 if (strcmp(nfs_mnt_prop, "off") == 0 && 6318 strcmp(sharesmb, "off") == 0) { 6319 (void) fprintf(stderr, gettext("cannot " 6320 "unshare '%s': legacy share\n"), 6321 zfs_get_name(zhp)); 6322 (void) fprintf(stderr, gettext("use " 6323 "unshare(1M) to unshare this " 6324 "filesystem\n")); 6325 ret = 1; 6326 } else if (!zfs_is_shared(zhp)) { 6327 (void) fprintf(stderr, gettext("cannot " 6328 "unshare '%s': not currently " 6329 "shared\n"), zfs_get_name(zhp)); 6330 ret = 1; 6331 } else if (zfs_unshareall(zhp) != 0) { 6332 ret = 1; 6333 } 6334 break; 6335 6336 case OP_MOUNT: 6337 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6338 (void) fprintf(stderr, gettext("cannot " 6339 "unmount '%s': legacy " 6340 "mountpoint\n"), zfs_get_name(zhp)); 6341 (void) fprintf(stderr, gettext("use " 6342 "umount(1M) to unmount this " 6343 "filesystem\n")); 6344 ret = 1; 6345 } else if (!zfs_is_mounted(zhp, NULL)) { 6346 (void) fprintf(stderr, gettext("cannot " 6347 "unmount '%s': not currently " 6348 "mounted\n"), 6349 zfs_get_name(zhp)); 6350 ret = 1; 6351 } else if (zfs_unmountall(zhp, flags) != 0) { 6352 ret = 1; 6353 } 6354 break; 6355 } 6356 6357 zfs_close(zhp); 6358 } 6359 6360 return (ret); 6361 } 6362 6363 /* 6364 * zfs unmount -a 6365 * zfs unmount filesystem 6366 * 6367 * Unmount all filesystems, or a specific ZFS filesystem. 6368 */ 6369 static int 6370 zfs_do_unmount(int argc, char **argv) 6371 { 6372 return (unshare_unmount(OP_MOUNT, argc, argv)); 6373 } 6374 6375 /* 6376 * zfs unshare -a 6377 * zfs unshare filesystem 6378 * 6379 * Unshare all filesystems, or a specific ZFS filesystem. 6380 */ 6381 static int 6382 zfs_do_unshare(int argc, char **argv) 6383 { 6384 return (unshare_unmount(OP_SHARE, argc, argv)); 6385 } 6386 6387 /* 6388 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6389 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6390 */ 6391 static int 6392 manual_mount(int argc, char **argv) 6393 { 6394 zfs_handle_t *zhp; 6395 char mountpoint[ZFS_MAXPROPLEN]; 6396 char mntopts[MNT_LINE_MAX] = { '\0' }; 6397 int ret = 0; 6398 int c; 6399 int flags = 0; 6400 char *dataset, *path; 6401 6402 /* check options */ 6403 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6404 switch (c) { 6405 case 'o': 6406 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6407 break; 6408 case 'O': 6409 flags |= MS_OVERLAY; 6410 break; 6411 case 'm': 6412 flags |= MS_NOMNTTAB; 6413 break; 6414 case ':': 6415 (void) fprintf(stderr, gettext("missing argument for " 6416 "'%c' option\n"), optopt); 6417 usage(B_FALSE); 6418 break; 6419 case '?': 6420 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6421 optopt); 6422 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6423 "<path>\n")); 6424 return (2); 6425 } 6426 } 6427 6428 argc -= optind; 6429 argv += optind; 6430 6431 /* check that we only have two arguments */ 6432 if (argc != 2) { 6433 if (argc == 0) 6434 (void) fprintf(stderr, gettext("missing dataset " 6435 "argument\n")); 6436 else if (argc == 1) 6437 (void) fprintf(stderr, 6438 gettext("missing mountpoint argument\n")); 6439 else 6440 (void) fprintf(stderr, gettext("too many arguments\n")); 6441 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6442 return (2); 6443 } 6444 6445 dataset = argv[0]; 6446 path = argv[1]; 6447 6448 /* try to open the dataset */ 6449 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6450 return (1); 6451 6452 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6453 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6454 6455 /* check for legacy mountpoint and complain appropriately */ 6456 ret = 0; 6457 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6458 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6459 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6460 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6461 strerror(errno)); 6462 ret = 1; 6463 } 6464 } else { 6465 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6466 "mounted using 'mount -F zfs'\n"), dataset); 6467 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6468 "instead.\n"), path); 6469 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6470 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6471 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6472 "information.\n")); 6473 ret = 1; 6474 } 6475 6476 return (ret); 6477 } 6478 6479 /* 6480 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6481 * unmounts of non-legacy filesystems, as this is the dominant administrative 6482 * interface. 6483 */ 6484 static int 6485 manual_unmount(int argc, char **argv) 6486 { 6487 int flags = 0; 6488 int c; 6489 6490 /* check options */ 6491 while ((c = getopt(argc, argv, "f")) != -1) { 6492 switch (c) { 6493 case 'f': 6494 flags = MS_FORCE; 6495 break; 6496 case '?': 6497 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6498 optopt); 6499 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6500 "<path>\n")); 6501 return (2); 6502 } 6503 } 6504 6505 argc -= optind; 6506 argv += optind; 6507 6508 /* check arguments */ 6509 if (argc != 1) { 6510 if (argc == 0) 6511 (void) fprintf(stderr, gettext("missing path " 6512 "argument\n")); 6513 else 6514 (void) fprintf(stderr, gettext("too many arguments\n")); 6515 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6516 return (2); 6517 } 6518 6519 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6520 } 6521 6522 static int 6523 find_command_idx(char *command, int *idx) 6524 { 6525 int i; 6526 6527 for (i = 0; i < NCOMMAND; i++) { 6528 if (command_table[i].name == NULL) 6529 continue; 6530 6531 if (strcmp(command, command_table[i].name) == 0) { 6532 *idx = i; 6533 return (0); 6534 } 6535 } 6536 return (1); 6537 } 6538 6539 static int 6540 zfs_do_diff(int argc, char **argv) 6541 { 6542 zfs_handle_t *zhp; 6543 int flags = 0; 6544 char *tosnap = NULL; 6545 char *fromsnap = NULL; 6546 char *atp, *copy; 6547 int err = 0; 6548 int c; 6549 6550 while ((c = getopt(argc, argv, "FHt")) != -1) { 6551 switch (c) { 6552 case 'F': 6553 flags |= ZFS_DIFF_CLASSIFY; 6554 break; 6555 case 'H': 6556 flags |= ZFS_DIFF_PARSEABLE; 6557 break; 6558 case 't': 6559 flags |= ZFS_DIFF_TIMESTAMP; 6560 break; 6561 default: 6562 (void) fprintf(stderr, 6563 gettext("invalid option '%c'\n"), optopt); 6564 usage(B_FALSE); 6565 } 6566 } 6567 6568 argc -= optind; 6569 argv += optind; 6570 6571 if (argc < 1) { 6572 (void) fprintf(stderr, 6573 gettext("must provide at least one snapshot name\n")); 6574 usage(B_FALSE); 6575 } 6576 6577 if (argc > 2) { 6578 (void) fprintf(stderr, gettext("too many arguments\n")); 6579 usage(B_FALSE); 6580 } 6581 6582 fromsnap = argv[0]; 6583 tosnap = (argc == 2) ? argv[1] : NULL; 6584 6585 copy = NULL; 6586 if (*fromsnap != '@') 6587 copy = strdup(fromsnap); 6588 else if (tosnap) 6589 copy = strdup(tosnap); 6590 if (copy == NULL) 6591 usage(B_FALSE); 6592 6593 if (atp = strchr(copy, '@')) 6594 *atp = '\0'; 6595 6596 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6597 return (1); 6598 6599 free(copy); 6600 6601 /* 6602 * Ignore SIGPIPE so that the library can give us 6603 * information on any failure 6604 */ 6605 (void) sigignore(SIGPIPE); 6606 6607 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6608 6609 zfs_close(zhp); 6610 6611 return (err != 0); 6612 } 6613 6614 /* 6615 * zfs bookmark <fs@snap> <fs#bmark> 6616 * 6617 * Creates a bookmark with the given name from the given snapshot. 6618 */ 6619 static int 6620 zfs_do_bookmark(int argc, char **argv) 6621 { 6622 char snapname[ZFS_MAXNAMELEN]; 6623 zfs_handle_t *zhp; 6624 nvlist_t *nvl; 6625 int ret = 0; 6626 int c; 6627 6628 /* check options */ 6629 while ((c = getopt(argc, argv, "")) != -1) { 6630 switch (c) { 6631 case '?': 6632 (void) fprintf(stderr, 6633 gettext("invalid option '%c'\n"), optopt); 6634 goto usage; 6635 } 6636 } 6637 6638 argc -= optind; 6639 argv += optind; 6640 6641 /* check number of arguments */ 6642 if (argc < 1) { 6643 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6644 goto usage; 6645 } 6646 if (argc < 2) { 6647 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6648 goto usage; 6649 } 6650 6651 if (strchr(argv[1], '#') == NULL) { 6652 (void) fprintf(stderr, 6653 gettext("invalid bookmark name '%s' -- " 6654 "must contain a '#'\n"), argv[1]); 6655 goto usage; 6656 } 6657 6658 if (argv[0][0] == '@') { 6659 /* 6660 * Snapshot name begins with @. 6661 * Default to same fs as bookmark. 6662 */ 6663 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6664 *strchr(snapname, '#') = '\0'; 6665 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6666 } else { 6667 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6668 } 6669 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6670 if (zhp == NULL) 6671 goto usage; 6672 zfs_close(zhp); 6673 6674 6675 nvl = fnvlist_alloc(); 6676 fnvlist_add_string(nvl, argv[1], snapname); 6677 ret = lzc_bookmark(nvl, NULL); 6678 fnvlist_free(nvl); 6679 6680 if (ret != 0) { 6681 const char *err_msg; 6682 char errbuf[1024]; 6683 6684 (void) snprintf(errbuf, sizeof (errbuf), 6685 dgettext(TEXT_DOMAIN, 6686 "cannot create bookmark '%s'"), argv[1]); 6687 6688 switch (ret) { 6689 case EXDEV: 6690 err_msg = "bookmark is in a different pool"; 6691 break; 6692 case EEXIST: 6693 err_msg = "bookmark exists"; 6694 break; 6695 case EINVAL: 6696 err_msg = "invalid argument"; 6697 break; 6698 case ENOTSUP: 6699 err_msg = "bookmark feature not enabled"; 6700 break; 6701 default: 6702 err_msg = "unknown error"; 6703 break; 6704 } 6705 (void) fprintf(stderr, "%s: %s\n", errbuf, 6706 dgettext(TEXT_DOMAIN, err_msg)); 6707 } 6708 6709 return (ret); 6710 6711 usage: 6712 usage(B_FALSE); 6713 return (-1); 6714 } 6715 6716 int 6717 main(int argc, char **argv) 6718 { 6719 int ret = 0; 6720 int i; 6721 char *progname; 6722 char *cmdname; 6723 6724 (void) setlocale(LC_ALL, ""); 6725 (void) textdomain(TEXT_DOMAIN); 6726 6727 opterr = 0; 6728 6729 if ((g_zfs = libzfs_init()) == NULL) { 6730 (void) fprintf(stderr, gettext("internal error: failed to " 6731 "initialize ZFS library\n")); 6732 return (1); 6733 } 6734 6735 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6736 6737 libzfs_print_on_error(g_zfs, B_TRUE); 6738 6739 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6740 (void) fprintf(stderr, gettext("internal error: unable to " 6741 "open %s\n"), MNTTAB); 6742 return (1); 6743 } 6744 6745 /* 6746 * This command also doubles as the /etc/fs mount and unmount program. 6747 * Determine if we should take this behavior based on argv[0]. 6748 */ 6749 progname = basename(argv[0]); 6750 if (strcmp(progname, "mount") == 0) { 6751 ret = manual_mount(argc, argv); 6752 } else if (strcmp(progname, "umount") == 0) { 6753 ret = manual_unmount(argc, argv); 6754 } else { 6755 /* 6756 * Make sure the user has specified some command. 6757 */ 6758 if (argc < 2) { 6759 (void) fprintf(stderr, gettext("missing command\n")); 6760 usage(B_FALSE); 6761 } 6762 6763 cmdname = argv[1]; 6764 6765 /* 6766 * The 'umount' command is an alias for 'unmount' 6767 */ 6768 if (strcmp(cmdname, "umount") == 0) 6769 cmdname = "unmount"; 6770 6771 /* 6772 * The 'recv' command is an alias for 'receive' 6773 */ 6774 if (strcmp(cmdname, "recv") == 0) 6775 cmdname = "receive"; 6776 6777 /* 6778 * Special case '-?' 6779 */ 6780 if (strcmp(cmdname, "-?") == 0) 6781 usage(B_TRUE); 6782 6783 /* 6784 * Run the appropriate command. 6785 */ 6786 libzfs_mnttab_cache(g_zfs, B_TRUE); 6787 if (find_command_idx(cmdname, &i) == 0) { 6788 current_command = &command_table[i]; 6789 ret = command_table[i].func(argc - 1, argv + 1); 6790 } else if (strchr(cmdname, '=') != NULL) { 6791 verify(find_command_idx("set", &i) == 0); 6792 current_command = &command_table[i]; 6793 ret = command_table[i].func(argc, argv); 6794 } else { 6795 (void) fprintf(stderr, gettext("unrecognized " 6796 "command '%s'\n"), cmdname); 6797 usage(B_FALSE); 6798 } 6799 libzfs_mnttab_cache(g_zfs, B_FALSE); 6800 } 6801 6802 (void) fclose(mnttab_file); 6803 6804 if (ret == 0 && log_history) 6805 (void) zpool_log_history(g_zfs, history_str); 6806 6807 libzfs_fini(g_zfs); 6808 6809 /* 6810 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6811 * for the purposes of running ::findleaks. 6812 */ 6813 if (getenv("ZFS_ABORT") != NULL) { 6814 (void) printf("dumping core by request\n"); 6815 abort(); 6816 } 6817 6818 return (ret); 6819 } 6820