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) 2011, 2014 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 #include <idmap.h> 67 68 #include "zfs_iter.h" 69 #include "zfs_util.h" 70 #include "zfs_comutil.h" 71 72 libzfs_handle_t *g_zfs; 73 74 static FILE *mnttab_file; 75 static char history_str[HIS_MAX_RECORD_LEN]; 76 static boolean_t log_history = B_TRUE; 77 78 static int zfs_do_clone(int argc, char **argv); 79 static int zfs_do_create(int argc, char **argv); 80 static int zfs_do_destroy(int argc, char **argv); 81 static int zfs_do_get(int argc, char **argv); 82 static int zfs_do_inherit(int argc, char **argv); 83 static int zfs_do_list(int argc, char **argv); 84 static int zfs_do_mount(int argc, char **argv); 85 static int zfs_do_rename(int argc, char **argv); 86 static int zfs_do_rollback(int argc, char **argv); 87 static int zfs_do_set(int argc, char **argv); 88 static int zfs_do_upgrade(int argc, char **argv); 89 static int zfs_do_snapshot(int argc, char **argv); 90 static int zfs_do_unmount(int argc, char **argv); 91 static int zfs_do_share(int argc, char **argv); 92 static int zfs_do_unshare(int argc, char **argv); 93 static int zfs_do_send(int argc, char **argv); 94 static int zfs_do_receive(int argc, char **argv); 95 static int zfs_do_promote(int argc, char **argv); 96 static int zfs_do_userspace(int argc, char **argv); 97 static int zfs_do_allow(int argc, char **argv); 98 static int zfs_do_unallow(int argc, char **argv); 99 static int zfs_do_hold(int argc, char **argv); 100 static int zfs_do_holds(int argc, char **argv); 101 static int zfs_do_release(int argc, char **argv); 102 static int zfs_do_diff(int argc, char **argv); 103 static int zfs_do_bookmark(int argc, char **argv); 104 105 /* 106 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 107 */ 108 109 #ifdef DEBUG 110 const char * 111 _umem_debug_init(void) 112 { 113 return ("default,verbose"); /* $UMEM_DEBUG setting */ 114 } 115 116 const char * 117 _umem_logging_init(void) 118 { 119 return ("fail,contents"); /* $UMEM_LOGGING setting */ 120 } 121 #endif 122 123 typedef enum { 124 HELP_CLONE, 125 HELP_CREATE, 126 HELP_DESTROY, 127 HELP_GET, 128 HELP_INHERIT, 129 HELP_UPGRADE, 130 HELP_LIST, 131 HELP_MOUNT, 132 HELP_PROMOTE, 133 HELP_RECEIVE, 134 HELP_RENAME, 135 HELP_ROLLBACK, 136 HELP_SEND, 137 HELP_SET, 138 HELP_SHARE, 139 HELP_SNAPSHOT, 140 HELP_UNMOUNT, 141 HELP_UNSHARE, 142 HELP_ALLOW, 143 HELP_UNALLOW, 144 HELP_USERSPACE, 145 HELP_GROUPSPACE, 146 HELP_HOLD, 147 HELP_HOLDS, 148 HELP_RELEASE, 149 HELP_DIFF, 150 HELP_BOOKMARK, 151 } zfs_help_t; 152 153 typedef struct zfs_command { 154 const char *name; 155 int (*func)(int argc, char **argv); 156 zfs_help_t usage; 157 } zfs_command_t; 158 159 /* 160 * Master command table. Each ZFS command has a name, associated function, and 161 * usage message. The usage messages need to be internationalized, so we have 162 * to have a function to return the usage message based on a command index. 163 * 164 * These commands are organized according to how they are displayed in the usage 165 * message. An empty command (one with a NULL name) indicates an empty line in 166 * the generic usage message. 167 */ 168 static zfs_command_t command_table[] = { 169 { "create", zfs_do_create, HELP_CREATE }, 170 { "destroy", zfs_do_destroy, HELP_DESTROY }, 171 { NULL }, 172 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 173 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 174 { "clone", zfs_do_clone, HELP_CLONE }, 175 { "promote", zfs_do_promote, HELP_PROMOTE }, 176 { "rename", zfs_do_rename, HELP_RENAME }, 177 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 178 { NULL }, 179 { "list", zfs_do_list, HELP_LIST }, 180 { NULL }, 181 { "set", zfs_do_set, HELP_SET }, 182 { "get", zfs_do_get, HELP_GET }, 183 { "inherit", zfs_do_inherit, HELP_INHERIT }, 184 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 185 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 186 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 187 { NULL }, 188 { "mount", zfs_do_mount, HELP_MOUNT }, 189 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 190 { "share", zfs_do_share, HELP_SHARE }, 191 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 192 { NULL }, 193 { "send", zfs_do_send, HELP_SEND }, 194 { "receive", zfs_do_receive, HELP_RECEIVE }, 195 { NULL }, 196 { "allow", zfs_do_allow, HELP_ALLOW }, 197 { NULL }, 198 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 199 { NULL }, 200 { "hold", zfs_do_hold, HELP_HOLD }, 201 { "holds", zfs_do_holds, HELP_HOLDS }, 202 { "release", zfs_do_release, HELP_RELEASE }, 203 { "diff", zfs_do_diff, HELP_DIFF }, 204 }; 205 206 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 207 208 zfs_command_t *current_command; 209 210 static const char * 211 get_usage(zfs_help_t idx) 212 { 213 switch (idx) { 214 case HELP_CLONE: 215 return (gettext("\tclone [-p] [-o property=value] ... " 216 "<snapshot> <filesystem|volume>\n")); 217 case HELP_CREATE: 218 return (gettext("\tcreate [-p] [-o property=value] ... " 219 "<filesystem>\n" 220 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 221 "-V <size> <volume>\n")); 222 case HELP_DESTROY: 223 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 224 "\tdestroy [-dnpRrv] " 225 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 226 "\tdestroy <filesystem|volume>#<bookmark>\n")); 227 case HELP_GET: 228 return (gettext("\tget [-rHp] [-d max] " 229 "[-o \"all\" | field[,...]]\n" 230 "\t [-t type[,...]] [-s source[,...]]\n" 231 "\t <\"all\" | property[,...]> " 232 "[filesystem|volume|snapshot] ...\n")); 233 case HELP_INHERIT: 234 return (gettext("\tinherit [-rS] <property> " 235 "<filesystem|volume|snapshot> ...\n")); 236 case HELP_UPGRADE: 237 return (gettext("\tupgrade [-v]\n" 238 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 239 case HELP_LIST: 240 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 241 "[-s property]...\n\t [-S property]... [-t type[,...]] " 242 "[filesystem|volume|snapshot] ...\n")); 243 case HELP_MOUNT: 244 return (gettext("\tmount\n" 245 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 246 case HELP_PROMOTE: 247 return (gettext("\tpromote <clone-filesystem>\n")); 248 case HELP_RECEIVE: 249 return (gettext("\treceive [-vnFu] <filesystem|volume|" 250 "snapshot>\n" 251 "\treceive [-vnFu] [-d | -e] <filesystem>\n")); 252 case HELP_RENAME: 253 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 254 "<filesystem|volume|snapshot>\n" 255 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 256 "\trename -r <snapshot> <snapshot>\n")); 257 case HELP_ROLLBACK: 258 return (gettext("\trollback [-rRf] <snapshot>\n")); 259 case HELP_SEND: 260 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 261 "<snapshot>\n" 262 "\tsend [-Le] [-i snapshot|bookmark] " 263 "<filesystem|volume|snapshot>\n")); 264 case HELP_SET: 265 return (gettext("\tset <property=value> ... " 266 "<filesystem|volume|snapshot> ...\n")); 267 case HELP_SHARE: 268 return (gettext("\tshare <-a | filesystem>\n")); 269 case HELP_SNAPSHOT: 270 return (gettext("\tsnapshot [-r] [-o property=value] ... " 271 "<filesystem|volume>@<snap> ...\n")); 272 case HELP_UNMOUNT: 273 return (gettext("\tunmount [-f] " 274 "<-a | filesystem|mountpoint>\n")); 275 case HELP_UNSHARE: 276 return (gettext("\tunshare " 277 "<-a | filesystem|mountpoint>\n")); 278 case HELP_ALLOW: 279 return (gettext("\tallow <filesystem|volume>\n" 280 "\tallow [-ldug] " 281 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 282 "\t <filesystem|volume>\n" 283 "\tallow [-ld] -e <perm|@setname>[,...] " 284 "<filesystem|volume>\n" 285 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 286 "\tallow -s @setname <perm|@setname>[,...] " 287 "<filesystem|volume>\n")); 288 case HELP_UNALLOW: 289 return (gettext("\tunallow [-rldug] " 290 "<\"everyone\"|user|group>[,...]\n" 291 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 292 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 293 "<filesystem|volume>\n" 294 "\tunallow [-r] -c [<perm|@setname>[,...]] " 295 "<filesystem|volume>\n" 296 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 297 "<filesystem|volume>\n")); 298 case HELP_USERSPACE: 299 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 300 "[-s field] ...\n" 301 "\t [-S field] ... [-t type[,...]] " 302 "<filesystem|snapshot>\n")); 303 case HELP_GROUPSPACE: 304 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 305 "[-s field] ...\n" 306 "\t [-S field] ... [-t type[,...]] " 307 "<filesystem|snapshot>\n")); 308 case HELP_HOLD: 309 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 310 case HELP_HOLDS: 311 return (gettext("\tholds [-r] <snapshot> ...\n")); 312 case HELP_RELEASE: 313 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 314 case HELP_DIFF: 315 return (gettext("\tdiff [-FHt] <snapshot> " 316 "[snapshot|filesystem]\n")); 317 case HELP_BOOKMARK: 318 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 319 } 320 321 abort(); 322 /* NOTREACHED */ 323 } 324 325 void 326 nomem(void) 327 { 328 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 329 exit(1); 330 } 331 332 /* 333 * Utility function to guarantee malloc() success. 334 */ 335 336 void * 337 safe_malloc(size_t size) 338 { 339 void *data; 340 341 if ((data = calloc(1, size)) == NULL) 342 nomem(); 343 344 return (data); 345 } 346 347 static char * 348 safe_strdup(char *str) 349 { 350 char *dupstr = strdup(str); 351 352 if (dupstr == NULL) 353 nomem(); 354 355 return (dupstr); 356 } 357 358 /* 359 * Callback routine that will print out information for each of 360 * the properties. 361 */ 362 static int 363 usage_prop_cb(int prop, void *cb) 364 { 365 FILE *fp = cb; 366 367 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 368 369 if (zfs_prop_readonly(prop)) 370 (void) fprintf(fp, " NO "); 371 else 372 (void) fprintf(fp, "YES "); 373 374 if (zfs_prop_inheritable(prop)) 375 (void) fprintf(fp, " YES "); 376 else 377 (void) fprintf(fp, " NO "); 378 379 if (zfs_prop_values(prop) == NULL) 380 (void) fprintf(fp, "-\n"); 381 else 382 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 383 384 return (ZPROP_CONT); 385 } 386 387 /* 388 * Display usage message. If we're inside a command, display only the usage for 389 * that command. Otherwise, iterate over the entire command table and display 390 * a complete usage message. 391 */ 392 static void 393 usage(boolean_t requested) 394 { 395 int i; 396 boolean_t show_properties = B_FALSE; 397 FILE *fp = requested ? stdout : stderr; 398 399 if (current_command == NULL) { 400 401 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 402 (void) fprintf(fp, 403 gettext("where 'command' is one of the following:\n\n")); 404 405 for (i = 0; i < NCOMMAND; i++) { 406 if (command_table[i].name == NULL) 407 (void) fprintf(fp, "\n"); 408 else 409 (void) fprintf(fp, "%s", 410 get_usage(command_table[i].usage)); 411 } 412 413 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 414 "pool/[dataset/]*dataset[@name]\n")); 415 } else { 416 (void) fprintf(fp, gettext("usage:\n")); 417 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 418 } 419 420 if (current_command != NULL && 421 (strcmp(current_command->name, "set") == 0 || 422 strcmp(current_command->name, "get") == 0 || 423 strcmp(current_command->name, "inherit") == 0 || 424 strcmp(current_command->name, "list") == 0)) 425 show_properties = B_TRUE; 426 427 if (show_properties) { 428 (void) fprintf(fp, 429 gettext("\nThe following properties are supported:\n")); 430 431 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 432 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 433 434 /* Iterate over all properties */ 435 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 436 ZFS_TYPE_DATASET); 437 438 (void) fprintf(fp, "\t%-15s ", "userused@..."); 439 (void) fprintf(fp, " NO NO <size>\n"); 440 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 441 (void) fprintf(fp, " NO NO <size>\n"); 442 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 443 (void) fprintf(fp, "YES NO <size> | none\n"); 444 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 445 (void) fprintf(fp, "YES NO <size> | none\n"); 446 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 447 (void) fprintf(fp, " NO NO <size>\n"); 448 449 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 450 "with standard units such as K, M, G, etc.\n")); 451 (void) fprintf(fp, gettext("\nUser-defined properties can " 452 "be specified by using a name containing a colon (:).\n")); 453 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 454 "properties must be appended with\n" 455 "a user or group specifier of one of these forms:\n" 456 " POSIX name (eg: \"matt\")\n" 457 " POSIX id (eg: \"126829\")\n" 458 " SMB name@domain (eg: \"matt@sun\")\n" 459 " SMB SID (eg: \"S-1-234-567-89\")\n")); 460 } else { 461 (void) fprintf(fp, 462 gettext("\nFor the property list, run: %s\n"), 463 "zfs set|get"); 464 (void) fprintf(fp, 465 gettext("\nFor the delegated permission list, run: %s\n"), 466 "zfs allow|unallow"); 467 } 468 469 /* 470 * See comments at end of main(). 471 */ 472 if (getenv("ZFS_ABORT") != NULL) { 473 (void) printf("dumping core by request\n"); 474 abort(); 475 } 476 477 exit(requested ? 0 : 2); 478 } 479 480 /* 481 * Take a property=value argument string and add it to the given nvlist. 482 * Modifies the argument inplace. 483 */ 484 static int 485 parseprop(nvlist_t *props, char *propname) 486 { 487 char *propval, *strval; 488 489 if ((propval = strchr(propname, '=')) == NULL) { 490 (void) fprintf(stderr, gettext("missing " 491 "'=' for property=value argument\n")); 492 return (-1); 493 } 494 *propval = '\0'; 495 propval++; 496 if (nvlist_lookup_string(props, propname, &strval) == 0) { 497 (void) fprintf(stderr, gettext("property '%s' " 498 "specified multiple times\n"), propname); 499 return (-1); 500 } 501 if (nvlist_add_string(props, propname, propval) != 0) 502 nomem(); 503 return (0); 504 } 505 506 static int 507 parse_depth(char *opt, int *flags) 508 { 509 char *tmp; 510 int depth; 511 512 depth = (int)strtol(opt, &tmp, 0); 513 if (*tmp) { 514 (void) fprintf(stderr, 515 gettext("%s is not an integer\n"), optarg); 516 usage(B_FALSE); 517 } 518 if (depth < 0) { 519 (void) fprintf(stderr, 520 gettext("Depth can not be negative.\n")); 521 usage(B_FALSE); 522 } 523 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 524 return (depth); 525 } 526 527 #define PROGRESS_DELAY 2 /* seconds */ 528 529 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"; 530 static time_t pt_begin; 531 static char *pt_header = NULL; 532 static boolean_t pt_shown; 533 534 static void 535 start_progress_timer(void) 536 { 537 pt_begin = time(NULL) + PROGRESS_DELAY; 538 pt_shown = B_FALSE; 539 } 540 541 static void 542 set_progress_header(char *header) 543 { 544 assert(pt_header == NULL); 545 pt_header = safe_strdup(header); 546 if (pt_shown) { 547 (void) printf("%s: ", header); 548 (void) fflush(stdout); 549 } 550 } 551 552 static void 553 update_progress(char *update) 554 { 555 if (!pt_shown && time(NULL) > pt_begin) { 556 int len = strlen(update); 557 558 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 559 pt_reverse); 560 (void) fflush(stdout); 561 pt_shown = B_TRUE; 562 } else if (pt_shown) { 563 int len = strlen(update); 564 565 (void) printf("%s%*.*s", update, len, len, pt_reverse); 566 (void) fflush(stdout); 567 } 568 } 569 570 static void 571 finish_progress(char *done) 572 { 573 if (pt_shown) { 574 (void) printf("%s\n", done); 575 (void) fflush(stdout); 576 } 577 free(pt_header); 578 pt_header = NULL; 579 } 580 581 /* 582 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 583 * 584 * Given an existing dataset, create a writable copy whose initial contents 585 * are the same as the source. The newly created dataset maintains a 586 * dependency on the original; the original cannot be destroyed so long as 587 * the clone exists. 588 * 589 * The '-p' flag creates all the non-existing ancestors of the target first. 590 */ 591 static int 592 zfs_do_clone(int argc, char **argv) 593 { 594 zfs_handle_t *zhp = NULL; 595 boolean_t parents = B_FALSE; 596 nvlist_t *props; 597 int ret = 0; 598 int c; 599 600 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 601 nomem(); 602 603 /* check options */ 604 while ((c = getopt(argc, argv, "o:p")) != -1) { 605 switch (c) { 606 case 'o': 607 if (parseprop(props, optarg) != 0) 608 return (1); 609 break; 610 case 'p': 611 parents = B_TRUE; 612 break; 613 case '?': 614 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 615 optopt); 616 goto usage; 617 } 618 } 619 620 argc -= optind; 621 argv += optind; 622 623 /* check number of arguments */ 624 if (argc < 1) { 625 (void) fprintf(stderr, gettext("missing source dataset " 626 "argument\n")); 627 goto usage; 628 } 629 if (argc < 2) { 630 (void) fprintf(stderr, gettext("missing target dataset " 631 "argument\n")); 632 goto usage; 633 } 634 if (argc > 2) { 635 (void) fprintf(stderr, gettext("too many arguments\n")); 636 goto usage; 637 } 638 639 /* open the source dataset */ 640 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 641 return (1); 642 643 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 644 ZFS_TYPE_VOLUME)) { 645 /* 646 * Now create the ancestors of the target dataset. If the 647 * target already exists and '-p' option was used we should not 648 * complain. 649 */ 650 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 651 ZFS_TYPE_VOLUME)) 652 return (0); 653 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 654 return (1); 655 } 656 657 /* pass to libzfs */ 658 ret = zfs_clone(zhp, argv[1], props); 659 660 /* create the mountpoint if necessary */ 661 if (ret == 0) { 662 zfs_handle_t *clone; 663 664 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 665 if (clone != NULL) { 666 if (zfs_get_type(clone) != ZFS_TYPE_VOLUME) 667 if ((ret = zfs_mount(clone, NULL, 0)) == 0) 668 ret = zfs_share(clone); 669 zfs_close(clone); 670 } 671 } 672 673 zfs_close(zhp); 674 nvlist_free(props); 675 676 return (!!ret); 677 678 usage: 679 if (zhp) 680 zfs_close(zhp); 681 nvlist_free(props); 682 usage(B_FALSE); 683 return (-1); 684 } 685 686 /* 687 * zfs create [-p] [-o prop=value] ... fs 688 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 689 * 690 * Create a new dataset. This command can be used to create filesystems 691 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 692 * For volumes, the user must specify a size to be used. 693 * 694 * The '-s' flag applies only to volumes, and indicates that we should not try 695 * to set the reservation for this volume. By default we set a reservation 696 * equal to the size for any volume. For pools with SPA_VERSION >= 697 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 698 * 699 * The '-p' flag creates all the non-existing ancestors of the target first. 700 */ 701 static int 702 zfs_do_create(int argc, char **argv) 703 { 704 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 705 zfs_handle_t *zhp = NULL; 706 uint64_t volsize; 707 int c; 708 boolean_t noreserve = B_FALSE; 709 boolean_t bflag = B_FALSE; 710 boolean_t parents = B_FALSE; 711 int ret = 1; 712 nvlist_t *props; 713 uint64_t intval; 714 int canmount = ZFS_CANMOUNT_OFF; 715 716 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 717 nomem(); 718 719 /* check options */ 720 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 721 switch (c) { 722 case 'V': 723 type = ZFS_TYPE_VOLUME; 724 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 725 (void) fprintf(stderr, gettext("bad volume " 726 "size '%s': %s\n"), optarg, 727 libzfs_error_description(g_zfs)); 728 goto error; 729 } 730 731 if (nvlist_add_uint64(props, 732 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 733 nomem(); 734 volsize = intval; 735 break; 736 case 'p': 737 parents = B_TRUE; 738 break; 739 case 'b': 740 bflag = B_TRUE; 741 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 742 (void) fprintf(stderr, gettext("bad volume " 743 "block size '%s': %s\n"), optarg, 744 libzfs_error_description(g_zfs)); 745 goto error; 746 } 747 748 if (nvlist_add_uint64(props, 749 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 750 intval) != 0) 751 nomem(); 752 break; 753 case 'o': 754 if (parseprop(props, optarg)) 755 goto error; 756 break; 757 case 's': 758 noreserve = B_TRUE; 759 break; 760 case ':': 761 (void) fprintf(stderr, gettext("missing size " 762 "argument\n")); 763 goto badusage; 764 case '?': 765 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 766 optopt); 767 goto badusage; 768 } 769 } 770 771 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 772 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 773 "used when creating a volume\n")); 774 goto badusage; 775 } 776 777 argc -= optind; 778 argv += optind; 779 780 /* check number of arguments */ 781 if (argc == 0) { 782 (void) fprintf(stderr, gettext("missing %s argument\n"), 783 zfs_type_to_name(type)); 784 goto badusage; 785 } 786 if (argc > 1) { 787 (void) fprintf(stderr, gettext("too many arguments\n")); 788 goto badusage; 789 } 790 791 if (type == ZFS_TYPE_VOLUME && !noreserve) { 792 zpool_handle_t *zpool_handle; 793 nvlist_t *real_props; 794 uint64_t spa_version; 795 char *p; 796 zfs_prop_t resv_prop; 797 char *strval; 798 char msg[1024]; 799 800 if (p = strchr(argv[0], '/')) 801 *p = '\0'; 802 zpool_handle = zpool_open(g_zfs, argv[0]); 803 if (p != NULL) 804 *p = '/'; 805 if (zpool_handle == NULL) 806 goto error; 807 spa_version = zpool_get_prop_int(zpool_handle, 808 ZPOOL_PROP_VERSION, NULL); 809 zpool_close(zpool_handle); 810 if (spa_version >= SPA_VERSION_REFRESERVATION) 811 resv_prop = ZFS_PROP_REFRESERVATION; 812 else 813 resv_prop = ZFS_PROP_RESERVATION; 814 815 (void) snprintf(msg, sizeof (msg), 816 gettext("cannot create '%s'"), argv[0]); 817 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 818 props, 0, NULL, msg)) == NULL) 819 goto error; 820 821 volsize = zvol_volsize_to_reservation(volsize, real_props); 822 nvlist_free(real_props); 823 824 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 825 &strval) != 0) { 826 if (nvlist_add_uint64(props, 827 zfs_prop_to_name(resv_prop), volsize) != 0) { 828 nvlist_free(props); 829 nomem(); 830 } 831 } 832 } 833 834 if (parents && zfs_name_valid(argv[0], type)) { 835 /* 836 * Now create the ancestors of target dataset. If the target 837 * already exists and '-p' option was used we should not 838 * complain. 839 */ 840 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 841 ret = 0; 842 goto error; 843 } 844 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 845 goto error; 846 } 847 848 /* pass to libzfs */ 849 if (zfs_create(g_zfs, argv[0], type, props) != 0) 850 goto error; 851 852 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 853 goto error; 854 855 ret = 0; 856 /* 857 * if the user doesn't want the dataset automatically mounted, 858 * then skip the mount/share step 859 */ 860 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type)) 861 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 862 863 /* 864 * Mount and/or share the new filesystem as appropriate. We provide a 865 * verbose error message to let the user know that their filesystem was 866 * in fact created, even if we failed to mount or share it. 867 */ 868 if (canmount == ZFS_CANMOUNT_ON) { 869 if (zfs_mount(zhp, NULL, 0) != 0) { 870 (void) fprintf(stderr, gettext("filesystem " 871 "successfully created, but not mounted\n")); 872 ret = 1; 873 } else if (zfs_share(zhp) != 0) { 874 (void) fprintf(stderr, gettext("filesystem " 875 "successfully created, but not shared\n")); 876 ret = 1; 877 } 878 } 879 880 error: 881 if (zhp) 882 zfs_close(zhp); 883 nvlist_free(props); 884 return (ret); 885 badusage: 886 nvlist_free(props); 887 usage(B_FALSE); 888 return (2); 889 } 890 891 /* 892 * zfs destroy [-rRf] <fs, vol> 893 * zfs destroy [-rRd] <snap> 894 * 895 * -r Recursively destroy all children 896 * -R Recursively destroy all dependents, including clones 897 * -f Force unmounting of any dependents 898 * -d If we can't destroy now, mark for deferred destruction 899 * 900 * Destroys the given dataset. By default, it will unmount any filesystems, 901 * and refuse to destroy a dataset that has any dependents. A dependent can 902 * either be a child, or a clone of a child. 903 */ 904 typedef struct destroy_cbdata { 905 boolean_t cb_first; 906 boolean_t cb_force; 907 boolean_t cb_recurse; 908 boolean_t cb_error; 909 boolean_t cb_doclones; 910 zfs_handle_t *cb_target; 911 boolean_t cb_defer_destroy; 912 boolean_t cb_verbose; 913 boolean_t cb_parsable; 914 boolean_t cb_dryrun; 915 nvlist_t *cb_nvl; 916 nvlist_t *cb_batchedsnaps; 917 918 /* first snap in contiguous run */ 919 char *cb_firstsnap; 920 /* previous snap in contiguous run */ 921 char *cb_prevsnap; 922 int64_t cb_snapused; 923 char *cb_snapspec; 924 char *cb_bookmark; 925 } destroy_cbdata_t; 926 927 /* 928 * Check for any dependents based on the '-r' or '-R' flags. 929 */ 930 static int 931 destroy_check_dependent(zfs_handle_t *zhp, void *data) 932 { 933 destroy_cbdata_t *cbp = data; 934 const char *tname = zfs_get_name(cbp->cb_target); 935 const char *name = zfs_get_name(zhp); 936 937 if (strncmp(tname, name, strlen(tname)) == 0 && 938 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 939 /* 940 * This is a direct descendant, not a clone somewhere else in 941 * the hierarchy. 942 */ 943 if (cbp->cb_recurse) 944 goto out; 945 946 if (cbp->cb_first) { 947 (void) fprintf(stderr, gettext("cannot destroy '%s': " 948 "%s has children\n"), 949 zfs_get_name(cbp->cb_target), 950 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 951 (void) fprintf(stderr, gettext("use '-r' to destroy " 952 "the following datasets:\n")); 953 cbp->cb_first = B_FALSE; 954 cbp->cb_error = B_TRUE; 955 } 956 957 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 958 } else { 959 /* 960 * This is a clone. We only want to report this if the '-r' 961 * wasn't specified, or the target is a snapshot. 962 */ 963 if (!cbp->cb_recurse && 964 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 965 goto out; 966 967 if (cbp->cb_first) { 968 (void) fprintf(stderr, gettext("cannot destroy '%s': " 969 "%s has dependent clones\n"), 970 zfs_get_name(cbp->cb_target), 971 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 972 (void) fprintf(stderr, gettext("use '-R' to destroy " 973 "the following datasets:\n")); 974 cbp->cb_first = B_FALSE; 975 cbp->cb_error = B_TRUE; 976 cbp->cb_dryrun = B_TRUE; 977 } 978 979 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 980 } 981 982 out: 983 zfs_close(zhp); 984 return (0); 985 } 986 987 static int 988 destroy_callback(zfs_handle_t *zhp, void *data) 989 { 990 destroy_cbdata_t *cb = data; 991 const char *name = zfs_get_name(zhp); 992 993 if (cb->cb_verbose) { 994 if (cb->cb_parsable) { 995 (void) printf("destroy\t%s\n", name); 996 } else if (cb->cb_dryrun) { 997 (void) printf(gettext("would destroy %s\n"), 998 name); 999 } else { 1000 (void) printf(gettext("will destroy %s\n"), 1001 name); 1002 } 1003 } 1004 1005 /* 1006 * Ignore pools (which we've already flagged as an error before getting 1007 * here). 1008 */ 1009 if (strchr(zfs_get_name(zhp), '/') == NULL && 1010 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1011 zfs_close(zhp); 1012 return (0); 1013 } 1014 if (cb->cb_dryrun) { 1015 zfs_close(zhp); 1016 return (0); 1017 } 1018 1019 /* 1020 * We batch up all contiguous snapshots (even of different 1021 * filesystems) and destroy them with one ioctl. We can't 1022 * simply do all snap deletions and then all fs deletions, 1023 * because we must delete a clone before its origin. 1024 */ 1025 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1026 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1027 } else { 1028 int error = zfs_destroy_snaps_nvl(g_zfs, 1029 cb->cb_batchedsnaps, B_FALSE); 1030 fnvlist_free(cb->cb_batchedsnaps); 1031 cb->cb_batchedsnaps = fnvlist_alloc(); 1032 1033 if (error != 0 || 1034 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1035 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1036 zfs_close(zhp); 1037 return (-1); 1038 } 1039 } 1040 1041 zfs_close(zhp); 1042 return (0); 1043 } 1044 1045 static int 1046 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1047 { 1048 destroy_cbdata_t *cb = arg; 1049 const char *name = zfs_get_name(zhp); 1050 int err = 0; 1051 1052 if (nvlist_exists(cb->cb_nvl, name)) { 1053 if (cb->cb_firstsnap == NULL) 1054 cb->cb_firstsnap = strdup(name); 1055 if (cb->cb_prevsnap != NULL) 1056 free(cb->cb_prevsnap); 1057 /* this snap continues the current range */ 1058 cb->cb_prevsnap = strdup(name); 1059 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1060 nomem(); 1061 if (cb->cb_verbose) { 1062 if (cb->cb_parsable) { 1063 (void) printf("destroy\t%s\n", name); 1064 } else if (cb->cb_dryrun) { 1065 (void) printf(gettext("would destroy %s\n"), 1066 name); 1067 } else { 1068 (void) printf(gettext("will destroy %s\n"), 1069 name); 1070 } 1071 } 1072 } else if (cb->cb_firstsnap != NULL) { 1073 /* end of this range */ 1074 uint64_t used = 0; 1075 err = lzc_snaprange_space(cb->cb_firstsnap, 1076 cb->cb_prevsnap, &used); 1077 cb->cb_snapused += used; 1078 free(cb->cb_firstsnap); 1079 cb->cb_firstsnap = NULL; 1080 free(cb->cb_prevsnap); 1081 cb->cb_prevsnap = NULL; 1082 } 1083 zfs_close(zhp); 1084 return (err); 1085 } 1086 1087 static int 1088 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1089 { 1090 int err = 0; 1091 assert(cb->cb_firstsnap == NULL); 1092 assert(cb->cb_prevsnap == NULL); 1093 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1094 if (cb->cb_firstsnap != NULL) { 1095 uint64_t used = 0; 1096 if (err == 0) { 1097 err = lzc_snaprange_space(cb->cb_firstsnap, 1098 cb->cb_prevsnap, &used); 1099 } 1100 cb->cb_snapused += used; 1101 free(cb->cb_firstsnap); 1102 cb->cb_firstsnap = NULL; 1103 free(cb->cb_prevsnap); 1104 cb->cb_prevsnap = NULL; 1105 } 1106 return (err); 1107 } 1108 1109 static int 1110 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1111 { 1112 destroy_cbdata_t *cb = arg; 1113 int err = 0; 1114 1115 /* Check for clones. */ 1116 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1117 cb->cb_target = zhp; 1118 cb->cb_first = B_TRUE; 1119 err = zfs_iter_dependents(zhp, B_TRUE, 1120 destroy_check_dependent, cb); 1121 } 1122 1123 if (err == 0) { 1124 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1125 nomem(); 1126 } 1127 zfs_close(zhp); 1128 return (err); 1129 } 1130 1131 static int 1132 gather_snapshots(zfs_handle_t *zhp, void *arg) 1133 { 1134 destroy_cbdata_t *cb = arg; 1135 int err = 0; 1136 1137 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1138 if (err == ENOENT) 1139 err = 0; 1140 if (err != 0) 1141 goto out; 1142 1143 if (cb->cb_verbose) { 1144 err = destroy_print_snapshots(zhp, cb); 1145 if (err != 0) 1146 goto out; 1147 } 1148 1149 if (cb->cb_recurse) 1150 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1151 1152 out: 1153 zfs_close(zhp); 1154 return (err); 1155 } 1156 1157 static int 1158 destroy_clones(destroy_cbdata_t *cb) 1159 { 1160 nvpair_t *pair; 1161 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1162 pair != NULL; 1163 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1164 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1165 ZFS_TYPE_SNAPSHOT); 1166 if (zhp != NULL) { 1167 boolean_t defer = cb->cb_defer_destroy; 1168 int err = 0; 1169 1170 /* 1171 * We can't defer destroy non-snapshots, so set it to 1172 * false while destroying the clones. 1173 */ 1174 cb->cb_defer_destroy = B_FALSE; 1175 err = zfs_iter_dependents(zhp, B_FALSE, 1176 destroy_callback, cb); 1177 cb->cb_defer_destroy = defer; 1178 zfs_close(zhp); 1179 if (err != 0) 1180 return (err); 1181 } 1182 } 1183 return (0); 1184 } 1185 1186 static int 1187 zfs_do_destroy(int argc, char **argv) 1188 { 1189 destroy_cbdata_t cb = { 0 }; 1190 int rv = 0; 1191 int err = 0; 1192 int c; 1193 zfs_handle_t *zhp = NULL; 1194 char *at, *pound; 1195 zfs_type_t type = ZFS_TYPE_DATASET; 1196 1197 /* check options */ 1198 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1199 switch (c) { 1200 case 'v': 1201 cb.cb_verbose = B_TRUE; 1202 break; 1203 case 'p': 1204 cb.cb_verbose = B_TRUE; 1205 cb.cb_parsable = B_TRUE; 1206 break; 1207 case 'n': 1208 cb.cb_dryrun = B_TRUE; 1209 break; 1210 case 'd': 1211 cb.cb_defer_destroy = B_TRUE; 1212 type = ZFS_TYPE_SNAPSHOT; 1213 break; 1214 case 'f': 1215 cb.cb_force = B_TRUE; 1216 break; 1217 case 'r': 1218 cb.cb_recurse = B_TRUE; 1219 break; 1220 case 'R': 1221 cb.cb_recurse = B_TRUE; 1222 cb.cb_doclones = B_TRUE; 1223 break; 1224 case '?': 1225 default: 1226 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1227 optopt); 1228 usage(B_FALSE); 1229 } 1230 } 1231 1232 argc -= optind; 1233 argv += optind; 1234 1235 /* check number of arguments */ 1236 if (argc == 0) { 1237 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1238 usage(B_FALSE); 1239 } 1240 if (argc > 1) { 1241 (void) fprintf(stderr, gettext("too many arguments\n")); 1242 usage(B_FALSE); 1243 } 1244 1245 at = strchr(argv[0], '@'); 1246 pound = strchr(argv[0], '#'); 1247 if (at != NULL) { 1248 1249 /* Build the list of snaps to destroy in cb_nvl. */ 1250 cb.cb_nvl = fnvlist_alloc(); 1251 1252 *at = '\0'; 1253 zhp = zfs_open(g_zfs, argv[0], 1254 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1255 if (zhp == NULL) 1256 return (1); 1257 1258 cb.cb_snapspec = at + 1; 1259 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1260 cb.cb_error) { 1261 rv = 1; 1262 goto out; 1263 } 1264 1265 if (nvlist_empty(cb.cb_nvl)) { 1266 (void) fprintf(stderr, gettext("could not find any " 1267 "snapshots to destroy; check snapshot names.\n")); 1268 rv = 1; 1269 goto out; 1270 } 1271 1272 if (cb.cb_verbose) { 1273 char buf[16]; 1274 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1275 if (cb.cb_parsable) { 1276 (void) printf("reclaim\t%llu\n", 1277 cb.cb_snapused); 1278 } else if (cb.cb_dryrun) { 1279 (void) printf(gettext("would reclaim %s\n"), 1280 buf); 1281 } else { 1282 (void) printf(gettext("will reclaim %s\n"), 1283 buf); 1284 } 1285 } 1286 1287 if (!cb.cb_dryrun) { 1288 if (cb.cb_doclones) { 1289 cb.cb_batchedsnaps = fnvlist_alloc(); 1290 err = destroy_clones(&cb); 1291 if (err == 0) { 1292 err = zfs_destroy_snaps_nvl(g_zfs, 1293 cb.cb_batchedsnaps, B_FALSE); 1294 } 1295 if (err != 0) { 1296 rv = 1; 1297 goto out; 1298 } 1299 } 1300 if (err == 0) { 1301 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1302 cb.cb_defer_destroy); 1303 } 1304 } 1305 1306 if (err != 0) 1307 rv = 1; 1308 } else if (pound != NULL) { 1309 int err; 1310 nvlist_t *nvl; 1311 1312 if (cb.cb_dryrun) { 1313 (void) fprintf(stderr, 1314 "dryrun is not supported with bookmark\n"); 1315 return (-1); 1316 } 1317 1318 if (cb.cb_defer_destroy) { 1319 (void) fprintf(stderr, 1320 "defer destroy is not supported with bookmark\n"); 1321 return (-1); 1322 } 1323 1324 if (cb.cb_recurse) { 1325 (void) fprintf(stderr, 1326 "recursive is not supported with bookmark\n"); 1327 return (-1); 1328 } 1329 1330 if (!zfs_bookmark_exists(argv[0])) { 1331 (void) fprintf(stderr, gettext("bookmark '%s' " 1332 "does not exist.\n"), argv[0]); 1333 return (1); 1334 } 1335 1336 nvl = fnvlist_alloc(); 1337 fnvlist_add_boolean(nvl, argv[0]); 1338 1339 err = lzc_destroy_bookmarks(nvl, NULL); 1340 if (err != 0) { 1341 (void) zfs_standard_error(g_zfs, err, 1342 "cannot destroy bookmark"); 1343 } 1344 1345 nvlist_free(cb.cb_nvl); 1346 1347 return (err); 1348 } else { 1349 /* Open the given dataset */ 1350 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1351 return (1); 1352 1353 cb.cb_target = zhp; 1354 1355 /* 1356 * Perform an explicit check for pools before going any further. 1357 */ 1358 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1359 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1360 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1361 "operation does not apply to pools\n"), 1362 zfs_get_name(zhp)); 1363 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1364 "%s' to destroy all datasets in the pool\n"), 1365 zfs_get_name(zhp)); 1366 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1367 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1368 rv = 1; 1369 goto out; 1370 } 1371 1372 /* 1373 * Check for any dependents and/or clones. 1374 */ 1375 cb.cb_first = B_TRUE; 1376 if (!cb.cb_doclones && 1377 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1378 &cb) != 0) { 1379 rv = 1; 1380 goto out; 1381 } 1382 1383 if (cb.cb_error) { 1384 rv = 1; 1385 goto out; 1386 } 1387 1388 cb.cb_batchedsnaps = fnvlist_alloc(); 1389 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1390 &cb) != 0) { 1391 rv = 1; 1392 goto out; 1393 } 1394 1395 /* 1396 * Do the real thing. The callback will close the 1397 * handle regardless of whether it succeeds or not. 1398 */ 1399 err = destroy_callback(zhp, &cb); 1400 zhp = NULL; 1401 if (err == 0) { 1402 err = zfs_destroy_snaps_nvl(g_zfs, 1403 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1404 } 1405 if (err != 0) 1406 rv = 1; 1407 } 1408 1409 out: 1410 fnvlist_free(cb.cb_batchedsnaps); 1411 fnvlist_free(cb.cb_nvl); 1412 if (zhp != NULL) 1413 zfs_close(zhp); 1414 return (rv); 1415 } 1416 1417 static boolean_t 1418 is_recvd_column(zprop_get_cbdata_t *cbp) 1419 { 1420 int i; 1421 zfs_get_column_t col; 1422 1423 for (i = 0; i < ZFS_GET_NCOLS && 1424 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1425 if (col == GET_COL_RECVD) 1426 return (B_TRUE); 1427 return (B_FALSE); 1428 } 1429 1430 /* 1431 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1432 * < all | property[,property]... > < fs | snap | vol > ... 1433 * 1434 * -r recurse over any child datasets 1435 * -H scripted mode. Headers are stripped, and fields are separated 1436 * by tabs instead of spaces. 1437 * -o Set of fields to display. One of "name,property,value, 1438 * received,source". Default is "name,property,value,source". 1439 * "all" is an alias for all five. 1440 * -s Set of sources to allow. One of 1441 * "local,default,inherited,received,temporary,none". Default is 1442 * all six. 1443 * -p Display values in parsable (literal) format. 1444 * 1445 * Prints properties for the given datasets. The user can control which 1446 * columns to display as well as which property types to allow. 1447 */ 1448 1449 /* 1450 * Invoked to display the properties for a single dataset. 1451 */ 1452 static int 1453 get_callback(zfs_handle_t *zhp, void *data) 1454 { 1455 char buf[ZFS_MAXPROPLEN]; 1456 char rbuf[ZFS_MAXPROPLEN]; 1457 zprop_source_t sourcetype; 1458 char source[ZFS_MAXNAMELEN]; 1459 zprop_get_cbdata_t *cbp = data; 1460 nvlist_t *user_props = zfs_get_user_props(zhp); 1461 zprop_list_t *pl = cbp->cb_proplist; 1462 nvlist_t *propval; 1463 char *strval; 1464 char *sourceval; 1465 boolean_t received = is_recvd_column(cbp); 1466 1467 for (; pl != NULL; pl = pl->pl_next) { 1468 char *recvdval = NULL; 1469 /* 1470 * Skip the special fake placeholder. This will also skip over 1471 * the name property when 'all' is specified. 1472 */ 1473 if (pl->pl_prop == ZFS_PROP_NAME && 1474 pl == cbp->cb_proplist) 1475 continue; 1476 1477 if (pl->pl_prop != ZPROP_INVAL) { 1478 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1479 sizeof (buf), &sourcetype, source, 1480 sizeof (source), 1481 cbp->cb_literal) != 0) { 1482 if (pl->pl_all) 1483 continue; 1484 if (!zfs_prop_valid_for_type(pl->pl_prop, 1485 ZFS_TYPE_DATASET)) { 1486 (void) fprintf(stderr, 1487 gettext("No such property '%s'\n"), 1488 zfs_prop_to_name(pl->pl_prop)); 1489 continue; 1490 } 1491 sourcetype = ZPROP_SRC_NONE; 1492 (void) strlcpy(buf, "-", sizeof (buf)); 1493 } 1494 1495 if (received && (zfs_prop_get_recvd(zhp, 1496 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1497 cbp->cb_literal) == 0)) 1498 recvdval = rbuf; 1499 1500 zprop_print_one_property(zfs_get_name(zhp), cbp, 1501 zfs_prop_to_name(pl->pl_prop), 1502 buf, sourcetype, source, recvdval); 1503 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1504 sourcetype = ZPROP_SRC_LOCAL; 1505 1506 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1507 buf, sizeof (buf), cbp->cb_literal) != 0) { 1508 sourcetype = ZPROP_SRC_NONE; 1509 (void) strlcpy(buf, "-", sizeof (buf)); 1510 } 1511 1512 zprop_print_one_property(zfs_get_name(zhp), cbp, 1513 pl->pl_user_prop, buf, sourcetype, source, NULL); 1514 } else if (zfs_prop_written(pl->pl_user_prop)) { 1515 sourcetype = ZPROP_SRC_LOCAL; 1516 1517 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1518 buf, sizeof (buf), cbp->cb_literal) != 0) { 1519 sourcetype = ZPROP_SRC_NONE; 1520 (void) strlcpy(buf, "-", sizeof (buf)); 1521 } 1522 1523 zprop_print_one_property(zfs_get_name(zhp), cbp, 1524 pl->pl_user_prop, buf, sourcetype, source, NULL); 1525 } else { 1526 if (nvlist_lookup_nvlist(user_props, 1527 pl->pl_user_prop, &propval) != 0) { 1528 if (pl->pl_all) 1529 continue; 1530 sourcetype = ZPROP_SRC_NONE; 1531 strval = "-"; 1532 } else { 1533 verify(nvlist_lookup_string(propval, 1534 ZPROP_VALUE, &strval) == 0); 1535 verify(nvlist_lookup_string(propval, 1536 ZPROP_SOURCE, &sourceval) == 0); 1537 1538 if (strcmp(sourceval, 1539 zfs_get_name(zhp)) == 0) { 1540 sourcetype = ZPROP_SRC_LOCAL; 1541 } else if (strcmp(sourceval, 1542 ZPROP_SOURCE_VAL_RECVD) == 0) { 1543 sourcetype = ZPROP_SRC_RECEIVED; 1544 } else { 1545 sourcetype = ZPROP_SRC_INHERITED; 1546 (void) strlcpy(source, 1547 sourceval, sizeof (source)); 1548 } 1549 } 1550 1551 if (received && (zfs_prop_get_recvd(zhp, 1552 pl->pl_user_prop, rbuf, sizeof (rbuf), 1553 cbp->cb_literal) == 0)) 1554 recvdval = rbuf; 1555 1556 zprop_print_one_property(zfs_get_name(zhp), cbp, 1557 pl->pl_user_prop, strval, sourcetype, 1558 source, recvdval); 1559 } 1560 } 1561 1562 return (0); 1563 } 1564 1565 static int 1566 zfs_do_get(int argc, char **argv) 1567 { 1568 zprop_get_cbdata_t cb = { 0 }; 1569 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1570 int types = ZFS_TYPE_DATASET; 1571 char *value, *fields; 1572 int ret = 0; 1573 int limit = 0; 1574 zprop_list_t fake_name = { 0 }; 1575 1576 /* 1577 * Set up default columns and sources. 1578 */ 1579 cb.cb_sources = ZPROP_SRC_ALL; 1580 cb.cb_columns[0] = GET_COL_NAME; 1581 cb.cb_columns[1] = GET_COL_PROPERTY; 1582 cb.cb_columns[2] = GET_COL_VALUE; 1583 cb.cb_columns[3] = GET_COL_SOURCE; 1584 cb.cb_type = ZFS_TYPE_DATASET; 1585 1586 /* check options */ 1587 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1588 switch (c) { 1589 case 'p': 1590 cb.cb_literal = B_TRUE; 1591 break; 1592 case 'd': 1593 limit = parse_depth(optarg, &flags); 1594 break; 1595 case 'r': 1596 flags |= ZFS_ITER_RECURSE; 1597 break; 1598 case 'H': 1599 cb.cb_scripted = B_TRUE; 1600 break; 1601 case ':': 1602 (void) fprintf(stderr, gettext("missing argument for " 1603 "'%c' option\n"), optopt); 1604 usage(B_FALSE); 1605 break; 1606 case 'o': 1607 /* 1608 * Process the set of columns to display. We zero out 1609 * the structure to give us a blank slate. 1610 */ 1611 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1612 i = 0; 1613 while (*optarg != '\0') { 1614 static char *col_subopts[] = 1615 { "name", "property", "value", "received", 1616 "source", "all", NULL }; 1617 1618 if (i == ZFS_GET_NCOLS) { 1619 (void) fprintf(stderr, gettext("too " 1620 "many fields given to -o " 1621 "option\n")); 1622 usage(B_FALSE); 1623 } 1624 1625 switch (getsubopt(&optarg, col_subopts, 1626 &value)) { 1627 case 0: 1628 cb.cb_columns[i++] = GET_COL_NAME; 1629 break; 1630 case 1: 1631 cb.cb_columns[i++] = GET_COL_PROPERTY; 1632 break; 1633 case 2: 1634 cb.cb_columns[i++] = GET_COL_VALUE; 1635 break; 1636 case 3: 1637 cb.cb_columns[i++] = GET_COL_RECVD; 1638 flags |= ZFS_ITER_RECVD_PROPS; 1639 break; 1640 case 4: 1641 cb.cb_columns[i++] = GET_COL_SOURCE; 1642 break; 1643 case 5: 1644 if (i > 0) { 1645 (void) fprintf(stderr, 1646 gettext("\"all\" conflicts " 1647 "with specific fields " 1648 "given to -o option\n")); 1649 usage(B_FALSE); 1650 } 1651 cb.cb_columns[0] = GET_COL_NAME; 1652 cb.cb_columns[1] = GET_COL_PROPERTY; 1653 cb.cb_columns[2] = GET_COL_VALUE; 1654 cb.cb_columns[3] = GET_COL_RECVD; 1655 cb.cb_columns[4] = GET_COL_SOURCE; 1656 flags |= ZFS_ITER_RECVD_PROPS; 1657 i = ZFS_GET_NCOLS; 1658 break; 1659 default: 1660 (void) fprintf(stderr, 1661 gettext("invalid column name " 1662 "'%s'\n"), value); 1663 usage(B_FALSE); 1664 } 1665 } 1666 break; 1667 1668 case 's': 1669 cb.cb_sources = 0; 1670 while (*optarg != '\0') { 1671 static char *source_subopts[] = { 1672 "local", "default", "inherited", 1673 "received", "temporary", "none", 1674 NULL }; 1675 1676 switch (getsubopt(&optarg, source_subopts, 1677 &value)) { 1678 case 0: 1679 cb.cb_sources |= ZPROP_SRC_LOCAL; 1680 break; 1681 case 1: 1682 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1683 break; 1684 case 2: 1685 cb.cb_sources |= ZPROP_SRC_INHERITED; 1686 break; 1687 case 3: 1688 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1689 break; 1690 case 4: 1691 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1692 break; 1693 case 5: 1694 cb.cb_sources |= ZPROP_SRC_NONE; 1695 break; 1696 default: 1697 (void) fprintf(stderr, 1698 gettext("invalid source " 1699 "'%s'\n"), value); 1700 usage(B_FALSE); 1701 } 1702 } 1703 break; 1704 1705 case 't': 1706 types = 0; 1707 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1708 while (*optarg != '\0') { 1709 static char *type_subopts[] = { "filesystem", 1710 "volume", "snapshot", "bookmark", 1711 "all", NULL }; 1712 1713 switch (getsubopt(&optarg, type_subopts, 1714 &value)) { 1715 case 0: 1716 types |= ZFS_TYPE_FILESYSTEM; 1717 break; 1718 case 1: 1719 types |= ZFS_TYPE_VOLUME; 1720 break; 1721 case 2: 1722 types |= ZFS_TYPE_SNAPSHOT; 1723 break; 1724 case 3: 1725 types |= ZFS_TYPE_BOOKMARK; 1726 break; 1727 case 4: 1728 types = ZFS_TYPE_DATASET | 1729 ZFS_TYPE_BOOKMARK; 1730 break; 1731 1732 default: 1733 (void) fprintf(stderr, 1734 gettext("invalid type '%s'\n"), 1735 value); 1736 usage(B_FALSE); 1737 } 1738 } 1739 break; 1740 1741 case '?': 1742 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1743 optopt); 1744 usage(B_FALSE); 1745 } 1746 } 1747 1748 argc -= optind; 1749 argv += optind; 1750 1751 if (argc < 1) { 1752 (void) fprintf(stderr, gettext("missing property " 1753 "argument\n")); 1754 usage(B_FALSE); 1755 } 1756 1757 fields = argv[0]; 1758 1759 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1760 != 0) 1761 usage(B_FALSE); 1762 1763 argc--; 1764 argv++; 1765 1766 /* 1767 * As part of zfs_expand_proplist(), we keep track of the maximum column 1768 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1769 * need to know the maximum name length. However, the user likely did 1770 * not specify 'name' as one of the properties to fetch, so we need to 1771 * make sure we always include at least this property for 1772 * print_get_headers() to work properly. 1773 */ 1774 if (cb.cb_proplist != NULL) { 1775 fake_name.pl_prop = ZFS_PROP_NAME; 1776 fake_name.pl_width = strlen(gettext("NAME")); 1777 fake_name.pl_next = cb.cb_proplist; 1778 cb.cb_proplist = &fake_name; 1779 } 1780 1781 cb.cb_first = B_TRUE; 1782 1783 /* run for each object */ 1784 ret = zfs_for_each(argc, argv, flags, types, NULL, 1785 &cb.cb_proplist, limit, get_callback, &cb); 1786 1787 if (cb.cb_proplist == &fake_name) 1788 zprop_free_list(fake_name.pl_next); 1789 else 1790 zprop_free_list(cb.cb_proplist); 1791 1792 return (ret); 1793 } 1794 1795 /* 1796 * inherit [-rS] <property> <fs|vol> ... 1797 * 1798 * -r Recurse over all children 1799 * -S Revert to received value, if any 1800 * 1801 * For each dataset specified on the command line, inherit the given property 1802 * from its parent. Inheriting a property at the pool level will cause it to 1803 * use the default value. The '-r' flag will recurse over all children, and is 1804 * useful for setting a property on a hierarchy-wide basis, regardless of any 1805 * local modifications for each dataset. 1806 */ 1807 1808 typedef struct inherit_cbdata { 1809 const char *cb_propname; 1810 boolean_t cb_received; 1811 } inherit_cbdata_t; 1812 1813 static int 1814 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1815 { 1816 inherit_cbdata_t *cb = data; 1817 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1818 1819 /* 1820 * If we're doing it recursively, then ignore properties that 1821 * are not valid for this type of dataset. 1822 */ 1823 if (prop != ZPROP_INVAL && 1824 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1825 return (0); 1826 1827 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1828 } 1829 1830 static int 1831 inherit_cb(zfs_handle_t *zhp, void *data) 1832 { 1833 inherit_cbdata_t *cb = data; 1834 1835 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1836 } 1837 1838 static int 1839 zfs_do_inherit(int argc, char **argv) 1840 { 1841 int c; 1842 zfs_prop_t prop; 1843 inherit_cbdata_t cb = { 0 }; 1844 char *propname; 1845 int ret = 0; 1846 int flags = 0; 1847 boolean_t received = B_FALSE; 1848 1849 /* check options */ 1850 while ((c = getopt(argc, argv, "rS")) != -1) { 1851 switch (c) { 1852 case 'r': 1853 flags |= ZFS_ITER_RECURSE; 1854 break; 1855 case 'S': 1856 received = B_TRUE; 1857 break; 1858 case '?': 1859 default: 1860 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1861 optopt); 1862 usage(B_FALSE); 1863 } 1864 } 1865 1866 argc -= optind; 1867 argv += optind; 1868 1869 /* check number of arguments */ 1870 if (argc < 1) { 1871 (void) fprintf(stderr, gettext("missing property argument\n")); 1872 usage(B_FALSE); 1873 } 1874 if (argc < 2) { 1875 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1876 usage(B_FALSE); 1877 } 1878 1879 propname = argv[0]; 1880 argc--; 1881 argv++; 1882 1883 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1884 if (zfs_prop_readonly(prop)) { 1885 (void) fprintf(stderr, gettext( 1886 "%s property is read-only\n"), 1887 propname); 1888 return (1); 1889 } 1890 if (!zfs_prop_inheritable(prop) && !received) { 1891 (void) fprintf(stderr, gettext("'%s' property cannot " 1892 "be inherited\n"), propname); 1893 if (prop == ZFS_PROP_QUOTA || 1894 prop == ZFS_PROP_RESERVATION || 1895 prop == ZFS_PROP_REFQUOTA || 1896 prop == ZFS_PROP_REFRESERVATION) { 1897 (void) fprintf(stderr, gettext("use 'zfs set " 1898 "%s=none' to clear\n"), propname); 1899 (void) fprintf(stderr, gettext("use 'zfs " 1900 "inherit -S %s' to revert to received " 1901 "value\n"), propname); 1902 } 1903 return (1); 1904 } 1905 if (received && (prop == ZFS_PROP_VOLSIZE || 1906 prop == ZFS_PROP_VERSION)) { 1907 (void) fprintf(stderr, gettext("'%s' property cannot " 1908 "be reverted to a received value\n"), propname); 1909 return (1); 1910 } 1911 } else if (!zfs_prop_user(propname)) { 1912 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1913 propname); 1914 usage(B_FALSE); 1915 } 1916 1917 cb.cb_propname = propname; 1918 cb.cb_received = received; 1919 1920 if (flags & ZFS_ITER_RECURSE) { 1921 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1922 NULL, NULL, 0, inherit_recurse_cb, &cb); 1923 } else { 1924 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1925 NULL, NULL, 0, inherit_cb, &cb); 1926 } 1927 1928 return (ret); 1929 } 1930 1931 typedef struct upgrade_cbdata { 1932 uint64_t cb_numupgraded; 1933 uint64_t cb_numsamegraded; 1934 uint64_t cb_numfailed; 1935 uint64_t cb_version; 1936 boolean_t cb_newer; 1937 boolean_t cb_foundone; 1938 char cb_lastfs[ZFS_MAXNAMELEN]; 1939 } upgrade_cbdata_t; 1940 1941 static int 1942 same_pool(zfs_handle_t *zhp, const char *name) 1943 { 1944 int len1 = strcspn(name, "/@"); 1945 const char *zhname = zfs_get_name(zhp); 1946 int len2 = strcspn(zhname, "/@"); 1947 1948 if (len1 != len2) 1949 return (B_FALSE); 1950 return (strncmp(name, zhname, len1) == 0); 1951 } 1952 1953 static int 1954 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1955 { 1956 upgrade_cbdata_t *cb = data; 1957 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1958 1959 /* list if it's old/new */ 1960 if ((!cb->cb_newer && version < ZPL_VERSION) || 1961 (cb->cb_newer && version > ZPL_VERSION)) { 1962 char *str; 1963 if (cb->cb_newer) { 1964 str = gettext("The following filesystems are " 1965 "formatted using a newer software version and\n" 1966 "cannot be accessed on the current system.\n\n"); 1967 } else { 1968 str = gettext("The following filesystems are " 1969 "out of date, and can be upgraded. After being\n" 1970 "upgraded, these filesystems (and any 'zfs send' " 1971 "streams generated from\n" 1972 "subsequent snapshots) will no longer be " 1973 "accessible by older software versions.\n\n"); 1974 } 1975 1976 if (!cb->cb_foundone) { 1977 (void) puts(str); 1978 (void) printf(gettext("VER FILESYSTEM\n")); 1979 (void) printf(gettext("--- ------------\n")); 1980 cb->cb_foundone = B_TRUE; 1981 } 1982 1983 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 1984 } 1985 1986 return (0); 1987 } 1988 1989 static int 1990 upgrade_set_callback(zfs_handle_t *zhp, void *data) 1991 { 1992 upgrade_cbdata_t *cb = data; 1993 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1994 int needed_spa_version; 1995 int spa_version; 1996 1997 if (zfs_spa_version(zhp, &spa_version) < 0) 1998 return (-1); 1999 2000 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2001 2002 if (needed_spa_version < 0) 2003 return (-1); 2004 2005 if (spa_version < needed_spa_version) { 2006 /* can't upgrade */ 2007 (void) printf(gettext("%s: can not be " 2008 "upgraded; the pool version needs to first " 2009 "be upgraded\nto version %d\n\n"), 2010 zfs_get_name(zhp), needed_spa_version); 2011 cb->cb_numfailed++; 2012 return (0); 2013 } 2014 2015 /* upgrade */ 2016 if (version < cb->cb_version) { 2017 char verstr[16]; 2018 (void) snprintf(verstr, sizeof (verstr), 2019 "%llu", cb->cb_version); 2020 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2021 /* 2022 * If they did "zfs upgrade -a", then we could 2023 * be doing ioctls to different pools. We need 2024 * to log this history once to each pool, and bypass 2025 * the normal history logging that happens in main(). 2026 */ 2027 (void) zpool_log_history(g_zfs, history_str); 2028 log_history = B_FALSE; 2029 } 2030 if (zfs_prop_set(zhp, "version", verstr) == 0) 2031 cb->cb_numupgraded++; 2032 else 2033 cb->cb_numfailed++; 2034 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2035 } else if (version > cb->cb_version) { 2036 /* can't downgrade */ 2037 (void) printf(gettext("%s: can not be downgraded; " 2038 "it is already at version %u\n"), 2039 zfs_get_name(zhp), version); 2040 cb->cb_numfailed++; 2041 } else { 2042 cb->cb_numsamegraded++; 2043 } 2044 return (0); 2045 } 2046 2047 /* 2048 * zfs upgrade 2049 * zfs upgrade -v 2050 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2051 */ 2052 static int 2053 zfs_do_upgrade(int argc, char **argv) 2054 { 2055 boolean_t all = B_FALSE; 2056 boolean_t showversions = B_FALSE; 2057 int ret = 0; 2058 upgrade_cbdata_t cb = { 0 }; 2059 char c; 2060 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2061 2062 /* check options */ 2063 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2064 switch (c) { 2065 case 'r': 2066 flags |= ZFS_ITER_RECURSE; 2067 break; 2068 case 'v': 2069 showversions = B_TRUE; 2070 break; 2071 case 'V': 2072 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2073 optarg, &cb.cb_version) != 0) { 2074 (void) fprintf(stderr, 2075 gettext("invalid version %s\n"), optarg); 2076 usage(B_FALSE); 2077 } 2078 break; 2079 case 'a': 2080 all = B_TRUE; 2081 break; 2082 case '?': 2083 default: 2084 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2085 optopt); 2086 usage(B_FALSE); 2087 } 2088 } 2089 2090 argc -= optind; 2091 argv += optind; 2092 2093 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2094 usage(B_FALSE); 2095 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2096 cb.cb_version || argc)) 2097 usage(B_FALSE); 2098 if ((all || argc) && (showversions)) 2099 usage(B_FALSE); 2100 if (all && argc) 2101 usage(B_FALSE); 2102 2103 if (showversions) { 2104 /* Show info on available versions. */ 2105 (void) printf(gettext("The following filesystem versions are " 2106 "supported:\n\n")); 2107 (void) printf(gettext("VER DESCRIPTION\n")); 2108 (void) printf("--- -----------------------------------------" 2109 "---------------\n"); 2110 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2111 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2112 (void) printf(gettext(" 3 Case insensitive and filesystem " 2113 "user identifier (FUID)\n")); 2114 (void) printf(gettext(" 4 userquota, groupquota " 2115 "properties\n")); 2116 (void) printf(gettext(" 5 System attributes\n")); 2117 (void) printf(gettext("\nFor more information on a particular " 2118 "version, including supported releases,\n")); 2119 (void) printf("see the ZFS Administration Guide.\n\n"); 2120 ret = 0; 2121 } else if (argc || all) { 2122 /* Upgrade filesystems */ 2123 if (cb.cb_version == 0) 2124 cb.cb_version = ZPL_VERSION; 2125 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2126 NULL, NULL, 0, upgrade_set_callback, &cb); 2127 (void) printf(gettext("%llu filesystems upgraded\n"), 2128 cb.cb_numupgraded); 2129 if (cb.cb_numsamegraded) { 2130 (void) printf(gettext("%llu filesystems already at " 2131 "this version\n"), 2132 cb.cb_numsamegraded); 2133 } 2134 if (cb.cb_numfailed != 0) 2135 ret = 1; 2136 } else { 2137 /* List old-version filesytems */ 2138 boolean_t found; 2139 (void) printf(gettext("This system is currently running " 2140 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2141 2142 flags |= ZFS_ITER_RECURSE; 2143 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2144 NULL, NULL, 0, upgrade_list_callback, &cb); 2145 2146 found = cb.cb_foundone; 2147 cb.cb_foundone = B_FALSE; 2148 cb.cb_newer = B_TRUE; 2149 2150 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2151 NULL, NULL, 0, upgrade_list_callback, &cb); 2152 2153 if (!cb.cb_foundone && !found) { 2154 (void) printf(gettext("All filesystems are " 2155 "formatted with the current version.\n")); 2156 } 2157 } 2158 2159 return (ret); 2160 } 2161 2162 /* 2163 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2164 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2165 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2166 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2167 * 2168 * -H Scripted mode; elide headers and separate columns by tabs. 2169 * -i Translate SID to POSIX ID. 2170 * -n Print numeric ID instead of user/group name. 2171 * -o Control which fields to display. 2172 * -p Use exact (parsable) numeric output. 2173 * -s Specify sort columns, descending order. 2174 * -S Specify sort columns, ascending order. 2175 * -t Control which object types to display. 2176 * 2177 * Displays space consumed by, and quotas on, each user in the specified 2178 * filesystem or snapshot. 2179 */ 2180 2181 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2182 enum us_field_types { 2183 USFIELD_TYPE, 2184 USFIELD_NAME, 2185 USFIELD_USED, 2186 USFIELD_QUOTA 2187 }; 2188 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2189 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2190 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2191 2192 #define USTYPE_PSX_GRP (1 << 0) 2193 #define USTYPE_PSX_USR (1 << 1) 2194 #define USTYPE_SMB_GRP (1 << 2) 2195 #define USTYPE_SMB_USR (1 << 3) 2196 #define USTYPE_ALL \ 2197 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2198 2199 static int us_type_bits[] = { 2200 USTYPE_PSX_GRP, 2201 USTYPE_PSX_USR, 2202 USTYPE_SMB_GRP, 2203 USTYPE_SMB_USR, 2204 USTYPE_ALL 2205 }; 2206 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2207 "smbuser", "all" }; 2208 2209 typedef struct us_node { 2210 nvlist_t *usn_nvl; 2211 uu_avl_node_t usn_avlnode; 2212 uu_list_node_t usn_listnode; 2213 } us_node_t; 2214 2215 typedef struct us_cbdata { 2216 nvlist_t **cb_nvlp; 2217 uu_avl_pool_t *cb_avl_pool; 2218 uu_avl_t *cb_avl; 2219 boolean_t cb_numname; 2220 boolean_t cb_nicenum; 2221 boolean_t cb_sid2posix; 2222 zfs_userquota_prop_t cb_prop; 2223 zfs_sort_column_t *cb_sortcol; 2224 size_t cb_width[USFIELD_LAST]; 2225 } us_cbdata_t; 2226 2227 static boolean_t us_populated = B_FALSE; 2228 2229 typedef struct { 2230 zfs_sort_column_t *si_sortcol; 2231 boolean_t si_numname; 2232 } us_sort_info_t; 2233 2234 static int 2235 us_field_index(char *field) 2236 { 2237 int i; 2238 2239 for (i = 0; i < USFIELD_LAST; i++) { 2240 if (strcmp(field, us_field_names[i]) == 0) 2241 return (i); 2242 } 2243 2244 return (-1); 2245 } 2246 2247 static int 2248 us_compare(const void *larg, const void *rarg, void *unused) 2249 { 2250 const us_node_t *l = larg; 2251 const us_node_t *r = rarg; 2252 us_sort_info_t *si = (us_sort_info_t *)unused; 2253 zfs_sort_column_t *sortcol = si->si_sortcol; 2254 boolean_t numname = si->si_numname; 2255 nvlist_t *lnvl = l->usn_nvl; 2256 nvlist_t *rnvl = r->usn_nvl; 2257 int rc = 0; 2258 boolean_t lvb, rvb; 2259 2260 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2261 char *lvstr = ""; 2262 char *rvstr = ""; 2263 uint32_t lv32 = 0; 2264 uint32_t rv32 = 0; 2265 uint64_t lv64 = 0; 2266 uint64_t rv64 = 0; 2267 zfs_prop_t prop = sortcol->sc_prop; 2268 const char *propname = NULL; 2269 boolean_t reverse = sortcol->sc_reverse; 2270 2271 switch (prop) { 2272 case ZFS_PROP_TYPE: 2273 propname = "type"; 2274 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2275 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2276 if (rv32 != lv32) 2277 rc = (rv32 < lv32) ? 1 : -1; 2278 break; 2279 case ZFS_PROP_NAME: 2280 propname = "name"; 2281 if (numname) { 2282 (void) nvlist_lookup_uint64(lnvl, propname, 2283 &lv64); 2284 (void) nvlist_lookup_uint64(rnvl, propname, 2285 &rv64); 2286 if (rv64 != lv64) 2287 rc = (rv64 < lv64) ? 1 : -1; 2288 } else { 2289 (void) nvlist_lookup_string(lnvl, propname, 2290 &lvstr); 2291 (void) nvlist_lookup_string(rnvl, propname, 2292 &rvstr); 2293 rc = strcmp(lvstr, rvstr); 2294 } 2295 break; 2296 case ZFS_PROP_USED: 2297 case ZFS_PROP_QUOTA: 2298 if (!us_populated) 2299 break; 2300 if (prop == ZFS_PROP_USED) 2301 propname = "used"; 2302 else 2303 propname = "quota"; 2304 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2305 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2306 if (rv64 != lv64) 2307 rc = (rv64 < lv64) ? 1 : -1; 2308 break; 2309 } 2310 2311 if (rc != 0) { 2312 if (rc < 0) 2313 return (reverse ? 1 : -1); 2314 else 2315 return (reverse ? -1 : 1); 2316 } 2317 } 2318 2319 /* 2320 * If entries still seem to be the same, check if they are of the same 2321 * type (smbentity is added only if we are doing SID to POSIX ID 2322 * translation where we can have duplicate type/name combinations). 2323 */ 2324 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2325 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2326 lvb != rvb) 2327 return (lvb < rvb ? -1 : 1); 2328 2329 return (0); 2330 } 2331 2332 static inline const char * 2333 us_type2str(unsigned field_type) 2334 { 2335 switch (field_type) { 2336 case USTYPE_PSX_USR: 2337 return ("POSIX User"); 2338 case USTYPE_PSX_GRP: 2339 return ("POSIX Group"); 2340 case USTYPE_SMB_USR: 2341 return ("SMB User"); 2342 case USTYPE_SMB_GRP: 2343 return ("SMB Group"); 2344 default: 2345 return ("Undefined"); 2346 } 2347 } 2348 2349 static int 2350 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2351 { 2352 us_cbdata_t *cb = (us_cbdata_t *)arg; 2353 zfs_userquota_prop_t prop = cb->cb_prop; 2354 char *name = NULL; 2355 char *propname; 2356 char sizebuf[32]; 2357 us_node_t *node; 2358 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2359 uu_avl_t *avl = cb->cb_avl; 2360 uu_avl_index_t idx; 2361 nvlist_t *props; 2362 us_node_t *n; 2363 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2364 unsigned type; 2365 const char *typestr; 2366 size_t namelen; 2367 size_t typelen; 2368 size_t sizelen; 2369 int typeidx, nameidx, sizeidx; 2370 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2371 boolean_t smbentity = B_FALSE; 2372 2373 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2374 nomem(); 2375 node = safe_malloc(sizeof (us_node_t)); 2376 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2377 node->usn_nvl = props; 2378 2379 if (domain != NULL && domain[0] != '\0') { 2380 /* SMB */ 2381 char sid[ZFS_MAXNAMELEN + 32]; 2382 uid_t id; 2383 int err; 2384 int flag = IDMAP_REQ_FLG_USE_CACHE; 2385 2386 smbentity = B_TRUE; 2387 2388 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2389 2390 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2391 type = USTYPE_SMB_GRP; 2392 err = sid_to_id(sid, B_FALSE, &id); 2393 } else { 2394 type = USTYPE_SMB_USR; 2395 err = sid_to_id(sid, B_TRUE, &id); 2396 } 2397 2398 if (err == 0) { 2399 rid = id; 2400 if (!cb->cb_sid2posix) { 2401 if (type == USTYPE_SMB_USR) { 2402 (void) idmap_getwinnamebyuid(rid, flag, 2403 &name, NULL); 2404 } else { 2405 (void) idmap_getwinnamebygid(rid, flag, 2406 &name, NULL); 2407 } 2408 if (name == NULL) 2409 name = sid; 2410 } 2411 } 2412 } 2413 2414 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2415 /* POSIX or -i */ 2416 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2417 type = USTYPE_PSX_GRP; 2418 if (!cb->cb_numname) { 2419 struct group *g; 2420 2421 if ((g = getgrgid(rid)) != NULL) 2422 name = g->gr_name; 2423 } 2424 } else { 2425 type = USTYPE_PSX_USR; 2426 if (!cb->cb_numname) { 2427 struct passwd *p; 2428 2429 if ((p = getpwuid(rid)) != NULL) 2430 name = p->pw_name; 2431 } 2432 } 2433 } 2434 2435 /* 2436 * Make sure that the type/name combination is unique when doing 2437 * SID to POSIX ID translation (hence changing the type from SMB to 2438 * POSIX). 2439 */ 2440 if (cb->cb_sid2posix && 2441 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2442 nomem(); 2443 2444 /* Calculate/update width of TYPE field */ 2445 typestr = us_type2str(type); 2446 typelen = strlen(gettext(typestr)); 2447 typeidx = us_field_index("type"); 2448 if (typelen > cb->cb_width[typeidx]) 2449 cb->cb_width[typeidx] = typelen; 2450 if (nvlist_add_uint32(props, "type", type) != 0) 2451 nomem(); 2452 2453 /* Calculate/update width of NAME field */ 2454 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2455 if (nvlist_add_uint64(props, "name", rid) != 0) 2456 nomem(); 2457 namelen = snprintf(NULL, 0, "%u", rid); 2458 } else { 2459 if (nvlist_add_string(props, "name", name) != 0) 2460 nomem(); 2461 namelen = strlen(name); 2462 } 2463 nameidx = us_field_index("name"); 2464 if (namelen > cb->cb_width[nameidx]) 2465 cb->cb_width[nameidx] = namelen; 2466 2467 /* 2468 * Check if this type/name combination is in the list and update it; 2469 * otherwise add new node to the list. 2470 */ 2471 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2472 uu_avl_insert(avl, node, idx); 2473 } else { 2474 nvlist_free(props); 2475 free(node); 2476 node = n; 2477 props = node->usn_nvl; 2478 } 2479 2480 /* Calculate/update width of USED/QUOTA fields */ 2481 if (cb->cb_nicenum) 2482 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2483 else 2484 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2485 sizelen = strlen(sizebuf); 2486 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2487 propname = "used"; 2488 if (!nvlist_exists(props, "quota")) 2489 (void) nvlist_add_uint64(props, "quota", 0); 2490 } else { 2491 propname = "quota"; 2492 if (!nvlist_exists(props, "used")) 2493 (void) nvlist_add_uint64(props, "used", 0); 2494 } 2495 sizeidx = us_field_index(propname); 2496 if (sizelen > cb->cb_width[sizeidx]) 2497 cb->cb_width[sizeidx] = sizelen; 2498 2499 if (nvlist_add_uint64(props, propname, space) != 0) 2500 nomem(); 2501 2502 return (0); 2503 } 2504 2505 static void 2506 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2507 size_t *width, us_node_t *node) 2508 { 2509 nvlist_t *nvl = node->usn_nvl; 2510 char valstr[ZFS_MAXNAMELEN]; 2511 boolean_t first = B_TRUE; 2512 int cfield = 0; 2513 int field; 2514 uint32_t ustype; 2515 2516 /* Check type */ 2517 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2518 if (!(ustype & types)) 2519 return; 2520 2521 while ((field = fields[cfield]) != USFIELD_LAST) { 2522 nvpair_t *nvp = NULL; 2523 data_type_t type; 2524 uint32_t val32; 2525 uint64_t val64; 2526 char *strval = NULL; 2527 2528 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2529 if (strcmp(nvpair_name(nvp), 2530 us_field_names[field]) == 0) 2531 break; 2532 } 2533 2534 type = nvpair_type(nvp); 2535 switch (type) { 2536 case DATA_TYPE_UINT32: 2537 (void) nvpair_value_uint32(nvp, &val32); 2538 break; 2539 case DATA_TYPE_UINT64: 2540 (void) nvpair_value_uint64(nvp, &val64); 2541 break; 2542 case DATA_TYPE_STRING: 2543 (void) nvpair_value_string(nvp, &strval); 2544 break; 2545 default: 2546 (void) fprintf(stderr, "invalid data type\n"); 2547 } 2548 2549 switch (field) { 2550 case USFIELD_TYPE: 2551 strval = (char *)us_type2str(val32); 2552 break; 2553 case USFIELD_NAME: 2554 if (type == DATA_TYPE_UINT64) { 2555 (void) sprintf(valstr, "%llu", val64); 2556 strval = valstr; 2557 } 2558 break; 2559 case USFIELD_USED: 2560 case USFIELD_QUOTA: 2561 if (type == DATA_TYPE_UINT64) { 2562 if (parsable) { 2563 (void) sprintf(valstr, "%llu", val64); 2564 } else { 2565 zfs_nicenum(val64, valstr, 2566 sizeof (valstr)); 2567 } 2568 if (field == USFIELD_QUOTA && 2569 strcmp(valstr, "0") == 0) 2570 strval = "none"; 2571 else 2572 strval = valstr; 2573 } 2574 break; 2575 } 2576 2577 if (!first) { 2578 if (scripted) 2579 (void) printf("\t"); 2580 else 2581 (void) printf(" "); 2582 } 2583 if (scripted) 2584 (void) printf("%s", strval); 2585 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2586 (void) printf("%-*s", width[field], strval); 2587 else 2588 (void) printf("%*s", width[field], strval); 2589 2590 first = B_FALSE; 2591 cfield++; 2592 } 2593 2594 (void) printf("\n"); 2595 } 2596 2597 static void 2598 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2599 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2600 { 2601 us_node_t *node; 2602 const char *col; 2603 int cfield = 0; 2604 int field; 2605 2606 if (!scripted) { 2607 boolean_t first = B_TRUE; 2608 2609 while ((field = fields[cfield]) != USFIELD_LAST) { 2610 col = gettext(us_field_hdr[field]); 2611 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2612 (void) printf(first ? "%-*s" : " %-*s", 2613 width[field], col); 2614 } else { 2615 (void) printf(first ? "%*s" : " %*s", 2616 width[field], col); 2617 } 2618 first = B_FALSE; 2619 cfield++; 2620 } 2621 (void) printf("\n"); 2622 } 2623 2624 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2625 print_us_node(scripted, parsable, fields, types, width, node); 2626 if (rmnode) 2627 nvlist_free(node->usn_nvl); 2628 } 2629 } 2630 2631 static int 2632 zfs_do_userspace(int argc, char **argv) 2633 { 2634 zfs_handle_t *zhp; 2635 zfs_userquota_prop_t p; 2636 uu_avl_pool_t *avl_pool; 2637 uu_avl_t *avl_tree; 2638 uu_avl_walk_t *walk; 2639 char *delim; 2640 char deffields[] = "type,name,used,quota"; 2641 char *ofield = NULL; 2642 char *tfield = NULL; 2643 int cfield = 0; 2644 int fields[256]; 2645 int i; 2646 boolean_t scripted = B_FALSE; 2647 boolean_t prtnum = B_FALSE; 2648 boolean_t parsable = B_FALSE; 2649 boolean_t sid2posix = B_FALSE; 2650 int ret = 0; 2651 int c; 2652 zfs_sort_column_t *sortcol = NULL; 2653 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2654 us_cbdata_t cb; 2655 us_node_t *node; 2656 us_node_t *rmnode; 2657 uu_list_pool_t *listpool; 2658 uu_list_t *list; 2659 uu_avl_index_t idx = 0; 2660 uu_list_index_t idx2 = 0; 2661 2662 if (argc < 2) 2663 usage(B_FALSE); 2664 2665 if (strcmp(argv[0], "groupspace") == 0) 2666 /* Toggle default group types */ 2667 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2668 2669 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2670 switch (c) { 2671 case 'n': 2672 prtnum = B_TRUE; 2673 break; 2674 case 'H': 2675 scripted = B_TRUE; 2676 break; 2677 case 'p': 2678 parsable = B_TRUE; 2679 break; 2680 case 'o': 2681 ofield = optarg; 2682 break; 2683 case 's': 2684 case 'S': 2685 if (zfs_add_sort_column(&sortcol, optarg, 2686 c == 's' ? B_FALSE : B_TRUE) != 0) { 2687 (void) fprintf(stderr, 2688 gettext("invalid field '%s'\n"), optarg); 2689 usage(B_FALSE); 2690 } 2691 break; 2692 case 't': 2693 tfield = optarg; 2694 break; 2695 case 'i': 2696 sid2posix = B_TRUE; 2697 break; 2698 case ':': 2699 (void) fprintf(stderr, gettext("missing argument for " 2700 "'%c' option\n"), optopt); 2701 usage(B_FALSE); 2702 break; 2703 case '?': 2704 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2705 optopt); 2706 usage(B_FALSE); 2707 } 2708 } 2709 2710 argc -= optind; 2711 argv += optind; 2712 2713 if (argc < 1) { 2714 (void) fprintf(stderr, gettext("missing dataset name\n")); 2715 usage(B_FALSE); 2716 } 2717 if (argc > 1) { 2718 (void) fprintf(stderr, gettext("too many arguments\n")); 2719 usage(B_FALSE); 2720 } 2721 2722 /* Use default output fields if not specified using -o */ 2723 if (ofield == NULL) 2724 ofield = deffields; 2725 do { 2726 if ((delim = strchr(ofield, ',')) != NULL) 2727 *delim = '\0'; 2728 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2729 (void) fprintf(stderr, gettext("invalid type '%s' " 2730 "for -o option\n"), ofield); 2731 return (-1); 2732 } 2733 if (delim != NULL) 2734 ofield = delim + 1; 2735 } while (delim != NULL); 2736 fields[cfield] = USFIELD_LAST; 2737 2738 /* Override output types (-t option) */ 2739 if (tfield != NULL) { 2740 types = 0; 2741 2742 do { 2743 boolean_t found = B_FALSE; 2744 2745 if ((delim = strchr(tfield, ',')) != NULL) 2746 *delim = '\0'; 2747 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2748 i++) { 2749 if (strcmp(tfield, us_type_names[i]) == 0) { 2750 found = B_TRUE; 2751 types |= us_type_bits[i]; 2752 break; 2753 } 2754 } 2755 if (!found) { 2756 (void) fprintf(stderr, gettext("invalid type " 2757 "'%s' for -t option\n"), tfield); 2758 return (-1); 2759 } 2760 if (delim != NULL) 2761 tfield = delim + 1; 2762 } while (delim != NULL); 2763 } 2764 2765 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2766 return (1); 2767 2768 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2769 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2770 nomem(); 2771 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2772 nomem(); 2773 2774 /* Always add default sorting columns */ 2775 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2776 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2777 2778 cb.cb_sortcol = sortcol; 2779 cb.cb_numname = prtnum; 2780 cb.cb_nicenum = !parsable; 2781 cb.cb_avl_pool = avl_pool; 2782 cb.cb_avl = avl_tree; 2783 cb.cb_sid2posix = sid2posix; 2784 2785 for (i = 0; i < USFIELD_LAST; i++) 2786 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2787 2788 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2789 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2790 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2791 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2792 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2793 continue; 2794 cb.cb_prop = p; 2795 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2796 return (ret); 2797 } 2798 2799 /* Sort the list */ 2800 if ((node = uu_avl_first(avl_tree)) == NULL) 2801 return (0); 2802 2803 us_populated = B_TRUE; 2804 2805 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2806 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2807 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2808 uu_list_node_init(node, &node->usn_listnode, listpool); 2809 2810 while (node != NULL) { 2811 rmnode = node; 2812 node = uu_avl_next(avl_tree, node); 2813 uu_avl_remove(avl_tree, rmnode); 2814 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2815 uu_list_insert(list, rmnode, idx2); 2816 } 2817 2818 for (node = uu_list_first(list); node != NULL; 2819 node = uu_list_next(list, node)) { 2820 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2821 2822 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2823 uu_avl_insert(avl_tree, node, idx); 2824 } 2825 2826 uu_list_destroy(list); 2827 uu_list_pool_destroy(listpool); 2828 2829 /* Print and free node nvlist memory */ 2830 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2831 cb.cb_avl); 2832 2833 zfs_free_sort_columns(sortcol); 2834 2835 /* Clean up the AVL tree */ 2836 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2837 nomem(); 2838 2839 while ((node = uu_avl_walk_next(walk)) != NULL) { 2840 uu_avl_remove(cb.cb_avl, node); 2841 free(node); 2842 } 2843 2844 uu_avl_walk_end(walk); 2845 uu_avl_destroy(avl_tree); 2846 uu_avl_pool_destroy(avl_pool); 2847 2848 return (ret); 2849 } 2850 2851 /* 2852 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2853 * [-t type[,...]] [filesystem|volume|snapshot] ... 2854 * 2855 * -H Scripted mode; elide headers and separate columns by tabs. 2856 * -p Display values in parsable (literal) format. 2857 * -r Recurse over all children. 2858 * -d Limit recursion by depth. 2859 * -o Control which fields to display. 2860 * -s Specify sort columns, descending order. 2861 * -S Specify sort columns, ascending order. 2862 * -t Control which object types to display. 2863 * 2864 * When given no arguments, list all filesystems in the system. 2865 * Otherwise, list the specified datasets, optionally recursing down them if 2866 * '-r' is specified. 2867 */ 2868 typedef struct list_cbdata { 2869 boolean_t cb_first; 2870 boolean_t cb_literal; 2871 boolean_t cb_scripted; 2872 zprop_list_t *cb_proplist; 2873 } list_cbdata_t; 2874 2875 /* 2876 * Given a list of columns to display, output appropriate headers for each one. 2877 */ 2878 static void 2879 print_header(list_cbdata_t *cb) 2880 { 2881 zprop_list_t *pl = cb->cb_proplist; 2882 char headerbuf[ZFS_MAXPROPLEN]; 2883 const char *header; 2884 int i; 2885 boolean_t first = B_TRUE; 2886 boolean_t right_justify; 2887 2888 for (; pl != NULL; pl = pl->pl_next) { 2889 if (!first) { 2890 (void) printf(" "); 2891 } else { 2892 first = B_FALSE; 2893 } 2894 2895 right_justify = B_FALSE; 2896 if (pl->pl_prop != ZPROP_INVAL) { 2897 header = zfs_prop_column_name(pl->pl_prop); 2898 right_justify = zfs_prop_align_right(pl->pl_prop); 2899 } else { 2900 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2901 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2902 headerbuf[i] = '\0'; 2903 header = headerbuf; 2904 } 2905 2906 if (pl->pl_next == NULL && !right_justify) 2907 (void) printf("%s", header); 2908 else if (right_justify) 2909 (void) printf("%*s", pl->pl_width, header); 2910 else 2911 (void) printf("%-*s", pl->pl_width, header); 2912 } 2913 2914 (void) printf("\n"); 2915 } 2916 2917 /* 2918 * Given a dataset and a list of fields, print out all the properties according 2919 * to the described layout. 2920 */ 2921 static void 2922 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2923 { 2924 zprop_list_t *pl = cb->cb_proplist; 2925 boolean_t first = B_TRUE; 2926 char property[ZFS_MAXPROPLEN]; 2927 nvlist_t *userprops = zfs_get_user_props(zhp); 2928 nvlist_t *propval; 2929 char *propstr; 2930 boolean_t right_justify; 2931 2932 for (; pl != NULL; pl = pl->pl_next) { 2933 if (!first) { 2934 if (cb->cb_scripted) 2935 (void) printf("\t"); 2936 else 2937 (void) printf(" "); 2938 } else { 2939 first = B_FALSE; 2940 } 2941 2942 if (pl->pl_prop != ZPROP_INVAL) { 2943 if (zfs_prop_get(zhp, pl->pl_prop, property, 2944 sizeof (property), NULL, NULL, 0, 2945 cb->cb_literal) != 0) 2946 propstr = "-"; 2947 else 2948 propstr = property; 2949 right_justify = zfs_prop_align_right(pl->pl_prop); 2950 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2951 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2952 property, sizeof (property), cb->cb_literal) != 0) 2953 propstr = "-"; 2954 else 2955 propstr = property; 2956 right_justify = B_TRUE; 2957 } else if (zfs_prop_written(pl->pl_user_prop)) { 2958 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 2959 property, sizeof (property), cb->cb_literal) != 0) 2960 propstr = "-"; 2961 else 2962 propstr = property; 2963 right_justify = B_TRUE; 2964 } else { 2965 if (nvlist_lookup_nvlist(userprops, 2966 pl->pl_user_prop, &propval) != 0) 2967 propstr = "-"; 2968 else 2969 verify(nvlist_lookup_string(propval, 2970 ZPROP_VALUE, &propstr) == 0); 2971 right_justify = B_FALSE; 2972 } 2973 2974 /* 2975 * If this is being called in scripted mode, or if this is the 2976 * last column and it is left-justified, don't include a width 2977 * format specifier. 2978 */ 2979 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 2980 (void) printf("%s", propstr); 2981 else if (right_justify) 2982 (void) printf("%*s", pl->pl_width, propstr); 2983 else 2984 (void) printf("%-*s", pl->pl_width, propstr); 2985 } 2986 2987 (void) printf("\n"); 2988 } 2989 2990 /* 2991 * Generic callback function to list a dataset or snapshot. 2992 */ 2993 static int 2994 list_callback(zfs_handle_t *zhp, void *data) 2995 { 2996 list_cbdata_t *cbp = data; 2997 2998 if (cbp->cb_first) { 2999 if (!cbp->cb_scripted) 3000 print_header(cbp); 3001 cbp->cb_first = B_FALSE; 3002 } 3003 3004 print_dataset(zhp, cbp); 3005 3006 return (0); 3007 } 3008 3009 static int 3010 zfs_do_list(int argc, char **argv) 3011 { 3012 int c; 3013 static char default_fields[] = 3014 "name,used,available,referenced,mountpoint"; 3015 int types = ZFS_TYPE_DATASET; 3016 boolean_t types_specified = B_FALSE; 3017 char *fields = NULL; 3018 list_cbdata_t cb = { 0 }; 3019 char *value; 3020 int limit = 0; 3021 int ret = 0; 3022 zfs_sort_column_t *sortcol = NULL; 3023 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3024 3025 /* check options */ 3026 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3027 switch (c) { 3028 case 'o': 3029 fields = optarg; 3030 break; 3031 case 'p': 3032 cb.cb_literal = B_TRUE; 3033 flags |= ZFS_ITER_LITERAL_PROPS; 3034 break; 3035 case 'd': 3036 limit = parse_depth(optarg, &flags); 3037 break; 3038 case 'r': 3039 flags |= ZFS_ITER_RECURSE; 3040 break; 3041 case 'H': 3042 cb.cb_scripted = B_TRUE; 3043 break; 3044 case 's': 3045 if (zfs_add_sort_column(&sortcol, optarg, 3046 B_FALSE) != 0) { 3047 (void) fprintf(stderr, 3048 gettext("invalid property '%s'\n"), optarg); 3049 usage(B_FALSE); 3050 } 3051 break; 3052 case 'S': 3053 if (zfs_add_sort_column(&sortcol, optarg, 3054 B_TRUE) != 0) { 3055 (void) fprintf(stderr, 3056 gettext("invalid property '%s'\n"), optarg); 3057 usage(B_FALSE); 3058 } 3059 break; 3060 case 't': 3061 types = 0; 3062 types_specified = B_TRUE; 3063 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3064 while (*optarg != '\0') { 3065 static char *type_subopts[] = { "filesystem", 3066 "volume", "snapshot", "snap", "bookmark", 3067 "all", NULL }; 3068 3069 switch (getsubopt(&optarg, type_subopts, 3070 &value)) { 3071 case 0: 3072 types |= ZFS_TYPE_FILESYSTEM; 3073 break; 3074 case 1: 3075 types |= ZFS_TYPE_VOLUME; 3076 break; 3077 case 2: 3078 case 3: 3079 types |= ZFS_TYPE_SNAPSHOT; 3080 break; 3081 case 4: 3082 types |= ZFS_TYPE_BOOKMARK; 3083 break; 3084 case 5: 3085 types = ZFS_TYPE_DATASET | 3086 ZFS_TYPE_BOOKMARK; 3087 break; 3088 default: 3089 (void) fprintf(stderr, 3090 gettext("invalid type '%s'\n"), 3091 value); 3092 usage(B_FALSE); 3093 } 3094 } 3095 break; 3096 case ':': 3097 (void) fprintf(stderr, gettext("missing argument for " 3098 "'%c' option\n"), optopt); 3099 usage(B_FALSE); 3100 break; 3101 case '?': 3102 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3103 optopt); 3104 usage(B_FALSE); 3105 } 3106 } 3107 3108 argc -= optind; 3109 argv += optind; 3110 3111 if (fields == NULL) 3112 fields = default_fields; 3113 3114 /* 3115 * If "-o space" and no types were specified, don't display snapshots. 3116 */ 3117 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3118 types &= ~ZFS_TYPE_SNAPSHOT; 3119 3120 /* 3121 * If the user specifies '-o all', the zprop_get_list() doesn't 3122 * normally include the name of the dataset. For 'zfs list', we always 3123 * want this property to be first. 3124 */ 3125 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3126 != 0) 3127 usage(B_FALSE); 3128 3129 cb.cb_first = B_TRUE; 3130 3131 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3132 limit, list_callback, &cb); 3133 3134 zprop_free_list(cb.cb_proplist); 3135 zfs_free_sort_columns(sortcol); 3136 3137 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3138 (void) printf(gettext("no datasets available\n")); 3139 3140 return (ret); 3141 } 3142 3143 /* 3144 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3145 * zfs rename [-f] -p <fs | vol> <fs | vol> 3146 * zfs rename -r <snap> <snap> 3147 * 3148 * Renames the given dataset to another of the same type. 3149 * 3150 * The '-p' flag creates all the non-existing ancestors of the target first. 3151 */ 3152 /* ARGSUSED */ 3153 static int 3154 zfs_do_rename(int argc, char **argv) 3155 { 3156 zfs_handle_t *zhp; 3157 int c; 3158 int ret = 0; 3159 boolean_t recurse = B_FALSE; 3160 boolean_t parents = B_FALSE; 3161 boolean_t force_unmount = B_FALSE; 3162 3163 /* check options */ 3164 while ((c = getopt(argc, argv, "prf")) != -1) { 3165 switch (c) { 3166 case 'p': 3167 parents = B_TRUE; 3168 break; 3169 case 'r': 3170 recurse = B_TRUE; 3171 break; 3172 case 'f': 3173 force_unmount = B_TRUE; 3174 break; 3175 case '?': 3176 default: 3177 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3178 optopt); 3179 usage(B_FALSE); 3180 } 3181 } 3182 3183 argc -= optind; 3184 argv += optind; 3185 3186 /* check number of arguments */ 3187 if (argc < 1) { 3188 (void) fprintf(stderr, gettext("missing source dataset " 3189 "argument\n")); 3190 usage(B_FALSE); 3191 } 3192 if (argc < 2) { 3193 (void) fprintf(stderr, gettext("missing target dataset " 3194 "argument\n")); 3195 usage(B_FALSE); 3196 } 3197 if (argc > 2) { 3198 (void) fprintf(stderr, gettext("too many arguments\n")); 3199 usage(B_FALSE); 3200 } 3201 3202 if (recurse && parents) { 3203 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3204 "exclusive\n")); 3205 usage(B_FALSE); 3206 } 3207 3208 if (recurse && strchr(argv[0], '@') == 0) { 3209 (void) fprintf(stderr, gettext("source dataset for recursive " 3210 "rename must be a snapshot\n")); 3211 usage(B_FALSE); 3212 } 3213 3214 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3215 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3216 return (1); 3217 3218 /* If we were asked and the name looks good, try to create ancestors. */ 3219 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3220 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3221 zfs_close(zhp); 3222 return (1); 3223 } 3224 3225 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3226 3227 zfs_close(zhp); 3228 return (ret); 3229 } 3230 3231 /* 3232 * zfs promote <fs> 3233 * 3234 * Promotes the given clone fs to be the parent 3235 */ 3236 /* ARGSUSED */ 3237 static int 3238 zfs_do_promote(int argc, char **argv) 3239 { 3240 zfs_handle_t *zhp; 3241 int ret = 0; 3242 3243 /* check options */ 3244 if (argc > 1 && argv[1][0] == '-') { 3245 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3246 argv[1][1]); 3247 usage(B_FALSE); 3248 } 3249 3250 /* check number of arguments */ 3251 if (argc < 2) { 3252 (void) fprintf(stderr, gettext("missing clone filesystem" 3253 " argument\n")); 3254 usage(B_FALSE); 3255 } 3256 if (argc > 2) { 3257 (void) fprintf(stderr, gettext("too many arguments\n")); 3258 usage(B_FALSE); 3259 } 3260 3261 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3262 if (zhp == NULL) 3263 return (1); 3264 3265 ret = (zfs_promote(zhp) != 0); 3266 3267 3268 zfs_close(zhp); 3269 return (ret); 3270 } 3271 3272 /* 3273 * zfs rollback [-rRf] <snapshot> 3274 * 3275 * -r Delete any intervening snapshots before doing rollback 3276 * -R Delete any snapshots and their clones 3277 * -f ignored for backwards compatability 3278 * 3279 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3280 * since then and making it the active dataset. If more recent snapshots exist, 3281 * the command will complain unless the '-r' flag is given. 3282 */ 3283 typedef struct rollback_cbdata { 3284 uint64_t cb_create; 3285 boolean_t cb_first; 3286 int cb_doclones; 3287 char *cb_target; 3288 int cb_error; 3289 boolean_t cb_recurse; 3290 } rollback_cbdata_t; 3291 3292 static int 3293 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3294 { 3295 rollback_cbdata_t *cbp = data; 3296 3297 if (cbp->cb_first && cbp->cb_recurse) { 3298 (void) fprintf(stderr, gettext("cannot rollback to " 3299 "'%s': clones of previous snapshots exist\n"), 3300 cbp->cb_target); 3301 (void) fprintf(stderr, gettext("use '-R' to " 3302 "force deletion of the following clones and " 3303 "dependents:\n")); 3304 cbp->cb_first = 0; 3305 cbp->cb_error = 1; 3306 } 3307 3308 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3309 3310 zfs_close(zhp); 3311 return (0); 3312 } 3313 3314 /* 3315 * Report any snapshots more recent than the one specified. Used when '-r' is 3316 * not specified. We reuse this same callback for the snapshot dependents - if 3317 * 'cb_dependent' is set, then this is a dependent and we should report it 3318 * without checking the transaction group. 3319 */ 3320 static int 3321 rollback_check(zfs_handle_t *zhp, void *data) 3322 { 3323 rollback_cbdata_t *cbp = data; 3324 3325 if (cbp->cb_doclones) { 3326 zfs_close(zhp); 3327 return (0); 3328 } 3329 3330 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3331 if (cbp->cb_first && !cbp->cb_recurse) { 3332 (void) fprintf(stderr, gettext("cannot " 3333 "rollback to '%s': more recent snapshots " 3334 "or bookmarks exist\n"), 3335 cbp->cb_target); 3336 (void) fprintf(stderr, gettext("use '-r' to " 3337 "force deletion of the following " 3338 "snapshots and bookmarks:\n")); 3339 cbp->cb_first = 0; 3340 cbp->cb_error = 1; 3341 } 3342 3343 if (cbp->cb_recurse) { 3344 if (zfs_iter_dependents(zhp, B_TRUE, 3345 rollback_check_dependent, cbp) != 0) { 3346 zfs_close(zhp); 3347 return (-1); 3348 } 3349 } else { 3350 (void) fprintf(stderr, "%s\n", 3351 zfs_get_name(zhp)); 3352 } 3353 } 3354 zfs_close(zhp); 3355 return (0); 3356 } 3357 3358 static int 3359 zfs_do_rollback(int argc, char **argv) 3360 { 3361 int ret = 0; 3362 int c; 3363 boolean_t force = B_FALSE; 3364 rollback_cbdata_t cb = { 0 }; 3365 zfs_handle_t *zhp, *snap; 3366 char parentname[ZFS_MAXNAMELEN]; 3367 char *delim; 3368 3369 /* check options */ 3370 while ((c = getopt(argc, argv, "rRf")) != -1) { 3371 switch (c) { 3372 case 'r': 3373 cb.cb_recurse = 1; 3374 break; 3375 case 'R': 3376 cb.cb_recurse = 1; 3377 cb.cb_doclones = 1; 3378 break; 3379 case 'f': 3380 force = B_TRUE; 3381 break; 3382 case '?': 3383 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3384 optopt); 3385 usage(B_FALSE); 3386 } 3387 } 3388 3389 argc -= optind; 3390 argv += optind; 3391 3392 /* check number of arguments */ 3393 if (argc < 1) { 3394 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3395 usage(B_FALSE); 3396 } 3397 if (argc > 1) { 3398 (void) fprintf(stderr, gettext("too many arguments\n")); 3399 usage(B_FALSE); 3400 } 3401 3402 /* open the snapshot */ 3403 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3404 return (1); 3405 3406 /* open the parent dataset */ 3407 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3408 verify((delim = strrchr(parentname, '@')) != NULL); 3409 *delim = '\0'; 3410 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3411 zfs_close(snap); 3412 return (1); 3413 } 3414 3415 /* 3416 * Check for more recent snapshots and/or clones based on the presence 3417 * of '-r' and '-R'. 3418 */ 3419 cb.cb_target = argv[0]; 3420 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3421 cb.cb_first = B_TRUE; 3422 cb.cb_error = 0; 3423 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3424 goto out; 3425 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3426 goto out; 3427 3428 if ((ret = cb.cb_error) != 0) 3429 goto out; 3430 3431 /* 3432 * Rollback parent to the given snapshot. 3433 */ 3434 ret = zfs_rollback(zhp, snap, force); 3435 3436 out: 3437 zfs_close(snap); 3438 zfs_close(zhp); 3439 3440 if (ret == 0) 3441 return (0); 3442 else 3443 return (1); 3444 } 3445 3446 /* 3447 * zfs set property=value ... { fs | snap | vol } ... 3448 * 3449 * Sets the given properties for all datasets specified on the command line. 3450 */ 3451 3452 static int 3453 set_callback(zfs_handle_t *zhp, void *data) 3454 { 3455 nvlist_t *props = data; 3456 3457 if (zfs_prop_set_list(zhp, props) != 0) { 3458 switch (libzfs_errno(g_zfs)) { 3459 case EZFS_MOUNTFAILED: 3460 (void) fprintf(stderr, gettext("property may be set " 3461 "but unable to remount filesystem\n")); 3462 break; 3463 case EZFS_SHARENFSFAILED: 3464 (void) fprintf(stderr, gettext("property may be set " 3465 "but unable to reshare filesystem\n")); 3466 break; 3467 } 3468 return (1); 3469 } 3470 return (0); 3471 } 3472 3473 static int 3474 zfs_do_set(int argc, char **argv) 3475 { 3476 nvlist_t *props = NULL; 3477 int ds_start = -1; /* argv idx of first dataset arg */ 3478 int ret = 0; 3479 3480 /* check for options */ 3481 if (argc > 1 && argv[1][0] == '-') { 3482 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3483 argv[1][1]); 3484 usage(B_FALSE); 3485 } 3486 3487 /* check number of arguments */ 3488 if (argc < 2) { 3489 (void) fprintf(stderr, gettext("missing arguments\n")); 3490 usage(B_FALSE); 3491 } 3492 if (argc < 3) { 3493 if (strchr(argv[1], '=') == NULL) { 3494 (void) fprintf(stderr, gettext("missing property=value " 3495 "argument(s)\n")); 3496 } else { 3497 (void) fprintf(stderr, gettext("missing dataset " 3498 "name(s)\n")); 3499 } 3500 usage(B_FALSE); 3501 } 3502 3503 /* validate argument order: prop=val args followed by dataset args */ 3504 for (int i = 1; i < argc; i++) { 3505 if (strchr(argv[i], '=') != NULL) { 3506 if (ds_start > 0) { 3507 /* out-of-order prop=val argument */ 3508 (void) fprintf(stderr, gettext("invalid " 3509 "argument order\n"), i); 3510 usage(B_FALSE); 3511 } 3512 } else if (ds_start < 0) { 3513 ds_start = i; 3514 } 3515 } 3516 if (ds_start < 0) { 3517 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3518 usage(B_FALSE); 3519 } 3520 3521 /* Populate a list of property settings */ 3522 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3523 nomem(); 3524 for (int i = 1; i < ds_start; i++) { 3525 if ((ret = parseprop(props, argv[i])) != 0) 3526 goto error; 3527 } 3528 3529 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3530 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3531 3532 error: 3533 nvlist_free(props); 3534 return (ret); 3535 } 3536 3537 typedef struct snap_cbdata { 3538 nvlist_t *sd_nvl; 3539 boolean_t sd_recursive; 3540 const char *sd_snapname; 3541 } snap_cbdata_t; 3542 3543 static int 3544 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3545 { 3546 snap_cbdata_t *sd = arg; 3547 char *name; 3548 int rv = 0; 3549 int error; 3550 3551 if (sd->sd_recursive && 3552 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3553 zfs_close(zhp); 3554 return (0); 3555 } 3556 3557 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3558 if (error == -1) 3559 nomem(); 3560 fnvlist_add_boolean(sd->sd_nvl, name); 3561 free(name); 3562 3563 if (sd->sd_recursive) 3564 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3565 zfs_close(zhp); 3566 return (rv); 3567 } 3568 3569 /* 3570 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3571 * 3572 * Creates a snapshot with the given name. While functionally equivalent to 3573 * 'zfs create', it is a separate command to differentiate intent. 3574 */ 3575 static int 3576 zfs_do_snapshot(int argc, char **argv) 3577 { 3578 int ret = 0; 3579 char c; 3580 nvlist_t *props; 3581 snap_cbdata_t sd = { 0 }; 3582 boolean_t multiple_snaps = B_FALSE; 3583 3584 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3585 nomem(); 3586 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3587 nomem(); 3588 3589 /* check options */ 3590 while ((c = getopt(argc, argv, "ro:")) != -1) { 3591 switch (c) { 3592 case 'o': 3593 if (parseprop(props, optarg)) 3594 return (1); 3595 break; 3596 case 'r': 3597 sd.sd_recursive = B_TRUE; 3598 multiple_snaps = B_TRUE; 3599 break; 3600 case '?': 3601 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3602 optopt); 3603 goto usage; 3604 } 3605 } 3606 3607 argc -= optind; 3608 argv += optind; 3609 3610 /* check number of arguments */ 3611 if (argc < 1) { 3612 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3613 goto usage; 3614 } 3615 3616 if (argc > 1) 3617 multiple_snaps = B_TRUE; 3618 for (; argc > 0; argc--, argv++) { 3619 char *atp; 3620 zfs_handle_t *zhp; 3621 3622 atp = strchr(argv[0], '@'); 3623 if (atp == NULL) 3624 goto usage; 3625 *atp = '\0'; 3626 sd.sd_snapname = atp + 1; 3627 zhp = zfs_open(g_zfs, argv[0], 3628 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3629 if (zhp == NULL) 3630 goto usage; 3631 if (zfs_snapshot_cb(zhp, &sd) != 0) 3632 goto usage; 3633 } 3634 3635 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3636 nvlist_free(sd.sd_nvl); 3637 nvlist_free(props); 3638 if (ret != 0 && multiple_snaps) 3639 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3640 return (ret != 0); 3641 3642 usage: 3643 nvlist_free(sd.sd_nvl); 3644 nvlist_free(props); 3645 usage(B_FALSE); 3646 return (-1); 3647 } 3648 3649 /* 3650 * Send a backup stream to stdout. 3651 */ 3652 static int 3653 zfs_do_send(int argc, char **argv) 3654 { 3655 char *fromname = NULL; 3656 char *toname = NULL; 3657 char *cp; 3658 zfs_handle_t *zhp; 3659 sendflags_t flags = { 0 }; 3660 int c, err; 3661 nvlist_t *dbgnv = NULL; 3662 boolean_t extraverbose = B_FALSE; 3663 3664 /* check options */ 3665 while ((c = getopt(argc, argv, ":i:I:RDpvnPLe")) != -1) { 3666 switch (c) { 3667 case 'i': 3668 if (fromname) 3669 usage(B_FALSE); 3670 fromname = optarg; 3671 break; 3672 case 'I': 3673 if (fromname) 3674 usage(B_FALSE); 3675 fromname = optarg; 3676 flags.doall = B_TRUE; 3677 break; 3678 case 'R': 3679 flags.replicate = B_TRUE; 3680 break; 3681 case 'p': 3682 flags.props = B_TRUE; 3683 break; 3684 case 'P': 3685 flags.parsable = B_TRUE; 3686 flags.verbose = B_TRUE; 3687 break; 3688 case 'v': 3689 if (flags.verbose) 3690 extraverbose = B_TRUE; 3691 flags.verbose = B_TRUE; 3692 flags.progress = B_TRUE; 3693 break; 3694 case 'D': 3695 flags.dedup = B_TRUE; 3696 break; 3697 case 'n': 3698 flags.dryrun = B_TRUE; 3699 break; 3700 case 'L': 3701 flags.largeblock = B_TRUE; 3702 break; 3703 case 'e': 3704 flags.embed_data = B_TRUE; 3705 break; 3706 case ':': 3707 (void) fprintf(stderr, gettext("missing argument for " 3708 "'%c' option\n"), optopt); 3709 usage(B_FALSE); 3710 break; 3711 case '?': 3712 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3713 optopt); 3714 usage(B_FALSE); 3715 } 3716 } 3717 3718 argc -= optind; 3719 argv += optind; 3720 3721 /* check number of arguments */ 3722 if (argc < 1) { 3723 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3724 usage(B_FALSE); 3725 } 3726 if (argc > 1) { 3727 (void) fprintf(stderr, gettext("too many arguments\n")); 3728 usage(B_FALSE); 3729 } 3730 3731 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3732 (void) fprintf(stderr, 3733 gettext("Error: Stream can not be written to a terminal.\n" 3734 "You must redirect standard output.\n")); 3735 return (1); 3736 } 3737 3738 /* 3739 * Special case sending a filesystem, or from a bookmark. 3740 */ 3741 if (strchr(argv[0], '@') == NULL || 3742 (fromname && strchr(fromname, '#') != NULL)) { 3743 char frombuf[ZFS_MAXNAMELEN]; 3744 enum lzc_send_flags lzc_flags = 0; 3745 3746 if (flags.replicate || flags.doall || flags.props || 3747 flags.dedup || flags.dryrun || flags.verbose || 3748 flags.progress) { 3749 (void) fprintf(stderr, 3750 gettext("Error: " 3751 "Unsupported flag with filesystem or bookmark.\n")); 3752 return (1); 3753 } 3754 3755 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3756 if (zhp == NULL) 3757 return (1); 3758 3759 if (flags.largeblock) 3760 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3761 if (flags.embed_data) 3762 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3763 3764 if (fromname != NULL && 3765 (fromname[0] == '#' || fromname[0] == '@')) { 3766 /* 3767 * Incremental source name begins with # or @. 3768 * Default to same fs as target. 3769 */ 3770 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3771 cp = strchr(frombuf, '@'); 3772 if (cp != NULL) 3773 *cp = '\0'; 3774 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3775 fromname = frombuf; 3776 } 3777 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3778 zfs_close(zhp); 3779 return (err != 0); 3780 } 3781 3782 cp = strchr(argv[0], '@'); 3783 *cp = '\0'; 3784 toname = cp + 1; 3785 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3786 if (zhp == NULL) 3787 return (1); 3788 3789 /* 3790 * If they specified the full path to the snapshot, chop off 3791 * everything except the short name of the snapshot, but special 3792 * case if they specify the origin. 3793 */ 3794 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3795 char origin[ZFS_MAXNAMELEN]; 3796 zprop_source_t src; 3797 3798 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3799 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3800 3801 if (strcmp(origin, fromname) == 0) { 3802 fromname = NULL; 3803 flags.fromorigin = B_TRUE; 3804 } else { 3805 *cp = '\0'; 3806 if (cp != fromname && strcmp(argv[0], fromname)) { 3807 (void) fprintf(stderr, 3808 gettext("incremental source must be " 3809 "in same filesystem\n")); 3810 usage(B_FALSE); 3811 } 3812 fromname = cp + 1; 3813 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3814 (void) fprintf(stderr, 3815 gettext("invalid incremental source\n")); 3816 usage(B_FALSE); 3817 } 3818 } 3819 } 3820 3821 if (flags.replicate && fromname == NULL) 3822 flags.doall = B_TRUE; 3823 3824 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3825 extraverbose ? &dbgnv : NULL); 3826 3827 if (extraverbose && dbgnv != NULL) { 3828 /* 3829 * dump_nvlist prints to stdout, but that's been 3830 * redirected to a file. Make it print to stderr 3831 * instead. 3832 */ 3833 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3834 dump_nvlist(dbgnv, 0); 3835 nvlist_free(dbgnv); 3836 } 3837 zfs_close(zhp); 3838 3839 return (err != 0); 3840 } 3841 3842 /* 3843 * zfs receive [-vnFu] [-d | -e] <fs@snap> 3844 * 3845 * Restore a backup stream from stdin. 3846 */ 3847 static int 3848 zfs_do_receive(int argc, char **argv) 3849 { 3850 int c, err; 3851 recvflags_t flags = { 0 }; 3852 3853 /* check options */ 3854 while ((c = getopt(argc, argv, ":denuvF")) != -1) { 3855 switch (c) { 3856 case 'd': 3857 flags.isprefix = B_TRUE; 3858 break; 3859 case 'e': 3860 flags.isprefix = B_TRUE; 3861 flags.istail = B_TRUE; 3862 break; 3863 case 'n': 3864 flags.dryrun = B_TRUE; 3865 break; 3866 case 'u': 3867 flags.nomount = B_TRUE; 3868 break; 3869 case 'v': 3870 flags.verbose = B_TRUE; 3871 break; 3872 case 'F': 3873 flags.force = B_TRUE; 3874 break; 3875 case ':': 3876 (void) fprintf(stderr, gettext("missing argument for " 3877 "'%c' option\n"), optopt); 3878 usage(B_FALSE); 3879 break; 3880 case '?': 3881 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3882 optopt); 3883 usage(B_FALSE); 3884 } 3885 } 3886 3887 argc -= optind; 3888 argv += optind; 3889 3890 /* check number of arguments */ 3891 if (argc < 1) { 3892 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3893 usage(B_FALSE); 3894 } 3895 if (argc > 1) { 3896 (void) fprintf(stderr, gettext("too many arguments\n")); 3897 usage(B_FALSE); 3898 } 3899 3900 if (isatty(STDIN_FILENO)) { 3901 (void) fprintf(stderr, 3902 gettext("Error: Backup stream can not be read " 3903 "from a terminal.\n" 3904 "You must redirect standard input.\n")); 3905 return (1); 3906 } 3907 3908 err = zfs_receive(g_zfs, argv[0], &flags, STDIN_FILENO, NULL); 3909 3910 return (err != 0); 3911 } 3912 3913 /* 3914 * allow/unallow stuff 3915 */ 3916 /* copied from zfs/sys/dsl_deleg.h */ 3917 #define ZFS_DELEG_PERM_CREATE "create" 3918 #define ZFS_DELEG_PERM_DESTROY "destroy" 3919 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 3920 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 3921 #define ZFS_DELEG_PERM_CLONE "clone" 3922 #define ZFS_DELEG_PERM_PROMOTE "promote" 3923 #define ZFS_DELEG_PERM_RENAME "rename" 3924 #define ZFS_DELEG_PERM_MOUNT "mount" 3925 #define ZFS_DELEG_PERM_SHARE "share" 3926 #define ZFS_DELEG_PERM_SEND "send" 3927 #define ZFS_DELEG_PERM_RECEIVE "receive" 3928 #define ZFS_DELEG_PERM_ALLOW "allow" 3929 #define ZFS_DELEG_PERM_USERPROP "userprop" 3930 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 3931 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 3932 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 3933 #define ZFS_DELEG_PERM_USERUSED "userused" 3934 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 3935 #define ZFS_DELEG_PERM_HOLD "hold" 3936 #define ZFS_DELEG_PERM_RELEASE "release" 3937 #define ZFS_DELEG_PERM_DIFF "diff" 3938 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 3939 3940 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 3941 3942 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 3943 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 3944 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 3945 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 3946 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 3947 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 3948 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 3949 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 3950 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 3951 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 3952 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 3953 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 3954 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 3955 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 3956 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 3957 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 3958 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 3959 3960 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 3961 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 3962 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 3963 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 3964 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 3965 { NULL, ZFS_DELEG_NOTE_NONE } 3966 }; 3967 3968 /* permission structure */ 3969 typedef struct deleg_perm { 3970 zfs_deleg_who_type_t dp_who_type; 3971 const char *dp_name; 3972 boolean_t dp_local; 3973 boolean_t dp_descend; 3974 } deleg_perm_t; 3975 3976 /* */ 3977 typedef struct deleg_perm_node { 3978 deleg_perm_t dpn_perm; 3979 3980 uu_avl_node_t dpn_avl_node; 3981 } deleg_perm_node_t; 3982 3983 typedef struct fs_perm fs_perm_t; 3984 3985 /* permissions set */ 3986 typedef struct who_perm { 3987 zfs_deleg_who_type_t who_type; 3988 const char *who_name; /* id */ 3989 char who_ug_name[256]; /* user/group name */ 3990 fs_perm_t *who_fsperm; /* uplink */ 3991 3992 uu_avl_t *who_deleg_perm_avl; /* permissions */ 3993 } who_perm_t; 3994 3995 /* */ 3996 typedef struct who_perm_node { 3997 who_perm_t who_perm; 3998 uu_avl_node_t who_avl_node; 3999 } who_perm_node_t; 4000 4001 typedef struct fs_perm_set fs_perm_set_t; 4002 /* fs permissions */ 4003 struct fs_perm { 4004 const char *fsp_name; 4005 4006 uu_avl_t *fsp_sc_avl; /* sets,create */ 4007 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4008 4009 fs_perm_set_t *fsp_set; /* uplink */ 4010 }; 4011 4012 /* */ 4013 typedef struct fs_perm_node { 4014 fs_perm_t fspn_fsperm; 4015 uu_avl_t *fspn_avl; 4016 4017 uu_list_node_t fspn_list_node; 4018 } fs_perm_node_t; 4019 4020 /* top level structure */ 4021 struct fs_perm_set { 4022 uu_list_pool_t *fsps_list_pool; 4023 uu_list_t *fsps_list; /* list of fs_perms */ 4024 4025 uu_avl_pool_t *fsps_named_set_avl_pool; 4026 uu_avl_pool_t *fsps_who_perm_avl_pool; 4027 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4028 }; 4029 4030 static inline const char * 4031 deleg_perm_type(zfs_deleg_note_t note) 4032 { 4033 /* subcommands */ 4034 switch (note) { 4035 /* SUBCOMMANDS */ 4036 /* OTHER */ 4037 case ZFS_DELEG_NOTE_GROUPQUOTA: 4038 case ZFS_DELEG_NOTE_GROUPUSED: 4039 case ZFS_DELEG_NOTE_USERPROP: 4040 case ZFS_DELEG_NOTE_USERQUOTA: 4041 case ZFS_DELEG_NOTE_USERUSED: 4042 /* other */ 4043 return (gettext("other")); 4044 default: 4045 return (gettext("subcommand")); 4046 } 4047 } 4048 4049 static int inline 4050 who_type2weight(zfs_deleg_who_type_t who_type) 4051 { 4052 int res; 4053 switch (who_type) { 4054 case ZFS_DELEG_NAMED_SET_SETS: 4055 case ZFS_DELEG_NAMED_SET: 4056 res = 0; 4057 break; 4058 case ZFS_DELEG_CREATE_SETS: 4059 case ZFS_DELEG_CREATE: 4060 res = 1; 4061 break; 4062 case ZFS_DELEG_USER_SETS: 4063 case ZFS_DELEG_USER: 4064 res = 2; 4065 break; 4066 case ZFS_DELEG_GROUP_SETS: 4067 case ZFS_DELEG_GROUP: 4068 res = 3; 4069 break; 4070 case ZFS_DELEG_EVERYONE_SETS: 4071 case ZFS_DELEG_EVERYONE: 4072 res = 4; 4073 break; 4074 default: 4075 res = -1; 4076 } 4077 4078 return (res); 4079 } 4080 4081 /* ARGSUSED */ 4082 static int 4083 who_perm_compare(const void *larg, const void *rarg, void *unused) 4084 { 4085 const who_perm_node_t *l = larg; 4086 const who_perm_node_t *r = rarg; 4087 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4088 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4089 int lweight = who_type2weight(ltype); 4090 int rweight = who_type2weight(rtype); 4091 int res = lweight - rweight; 4092 if (res == 0) 4093 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4094 ZFS_MAX_DELEG_NAME-1); 4095 4096 if (res == 0) 4097 return (0); 4098 if (res > 0) 4099 return (1); 4100 else 4101 return (-1); 4102 } 4103 4104 /* ARGSUSED */ 4105 static int 4106 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4107 { 4108 const deleg_perm_node_t *l = larg; 4109 const deleg_perm_node_t *r = rarg; 4110 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4111 ZFS_MAX_DELEG_NAME-1); 4112 4113 if (res == 0) 4114 return (0); 4115 4116 if (res > 0) 4117 return (1); 4118 else 4119 return (-1); 4120 } 4121 4122 static inline void 4123 fs_perm_set_init(fs_perm_set_t *fspset) 4124 { 4125 bzero(fspset, sizeof (fs_perm_set_t)); 4126 4127 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4128 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4129 NULL, UU_DEFAULT)) == NULL) 4130 nomem(); 4131 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4132 UU_DEFAULT)) == NULL) 4133 nomem(); 4134 4135 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4136 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4137 who_perm_node_t, who_avl_node), who_perm_compare, 4138 UU_DEFAULT)) == NULL) 4139 nomem(); 4140 4141 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4142 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4143 who_perm_node_t, who_avl_node), who_perm_compare, 4144 UU_DEFAULT)) == NULL) 4145 nomem(); 4146 4147 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4148 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4149 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4150 == NULL) 4151 nomem(); 4152 } 4153 4154 static inline void fs_perm_fini(fs_perm_t *); 4155 static inline void who_perm_fini(who_perm_t *); 4156 4157 static inline void 4158 fs_perm_set_fini(fs_perm_set_t *fspset) 4159 { 4160 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4161 4162 while (node != NULL) { 4163 fs_perm_node_t *next_node = 4164 uu_list_next(fspset->fsps_list, node); 4165 fs_perm_t *fsperm = &node->fspn_fsperm; 4166 fs_perm_fini(fsperm); 4167 uu_list_remove(fspset->fsps_list, node); 4168 free(node); 4169 node = next_node; 4170 } 4171 4172 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4173 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4174 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4175 } 4176 4177 static inline void 4178 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4179 const char *name) 4180 { 4181 deleg_perm->dp_who_type = type; 4182 deleg_perm->dp_name = name; 4183 } 4184 4185 static inline void 4186 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4187 zfs_deleg_who_type_t type, const char *name) 4188 { 4189 uu_avl_pool_t *pool; 4190 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4191 4192 bzero(who_perm, sizeof (who_perm_t)); 4193 4194 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4195 UU_DEFAULT)) == NULL) 4196 nomem(); 4197 4198 who_perm->who_type = type; 4199 who_perm->who_name = name; 4200 who_perm->who_fsperm = fsperm; 4201 } 4202 4203 static inline void 4204 who_perm_fini(who_perm_t *who_perm) 4205 { 4206 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4207 4208 while (node != NULL) { 4209 deleg_perm_node_t *next_node = 4210 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4211 4212 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4213 free(node); 4214 node = next_node; 4215 } 4216 4217 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4218 } 4219 4220 static inline void 4221 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4222 { 4223 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4224 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4225 4226 bzero(fsperm, sizeof (fs_perm_t)); 4227 4228 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4229 == NULL) 4230 nomem(); 4231 4232 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4233 == NULL) 4234 nomem(); 4235 4236 fsperm->fsp_set = fspset; 4237 fsperm->fsp_name = fsname; 4238 } 4239 4240 static inline void 4241 fs_perm_fini(fs_perm_t *fsperm) 4242 { 4243 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4244 while (node != NULL) { 4245 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4246 node); 4247 who_perm_t *who_perm = &node->who_perm; 4248 who_perm_fini(who_perm); 4249 uu_avl_remove(fsperm->fsp_sc_avl, node); 4250 free(node); 4251 node = next_node; 4252 } 4253 4254 node = uu_avl_first(fsperm->fsp_uge_avl); 4255 while (node != NULL) { 4256 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4257 node); 4258 who_perm_t *who_perm = &node->who_perm; 4259 who_perm_fini(who_perm); 4260 uu_avl_remove(fsperm->fsp_uge_avl, node); 4261 free(node); 4262 node = next_node; 4263 } 4264 4265 uu_avl_destroy(fsperm->fsp_sc_avl); 4266 uu_avl_destroy(fsperm->fsp_uge_avl); 4267 } 4268 4269 static void inline 4270 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4271 zfs_deleg_who_type_t who_type, const char *name, char locality) 4272 { 4273 uu_avl_index_t idx = 0; 4274 4275 deleg_perm_node_t *found_node = NULL; 4276 deleg_perm_t *deleg_perm = &node->dpn_perm; 4277 4278 deleg_perm_init(deleg_perm, who_type, name); 4279 4280 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4281 == NULL) 4282 uu_avl_insert(avl, node, idx); 4283 else { 4284 node = found_node; 4285 deleg_perm = &node->dpn_perm; 4286 } 4287 4288 4289 switch (locality) { 4290 case ZFS_DELEG_LOCAL: 4291 deleg_perm->dp_local = B_TRUE; 4292 break; 4293 case ZFS_DELEG_DESCENDENT: 4294 deleg_perm->dp_descend = B_TRUE; 4295 break; 4296 case ZFS_DELEG_NA: 4297 break; 4298 default: 4299 assert(B_FALSE); /* invalid locality */ 4300 } 4301 } 4302 4303 static inline int 4304 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4305 { 4306 nvpair_t *nvp = NULL; 4307 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4308 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4309 zfs_deleg_who_type_t who_type = who_perm->who_type; 4310 4311 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4312 const char *name = nvpair_name(nvp); 4313 data_type_t type = nvpair_type(nvp); 4314 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4315 deleg_perm_node_t *node = 4316 safe_malloc(sizeof (deleg_perm_node_t)); 4317 4318 assert(type == DATA_TYPE_BOOLEAN); 4319 4320 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4321 set_deleg_perm_node(avl, node, who_type, name, locality); 4322 } 4323 4324 return (0); 4325 } 4326 4327 static inline int 4328 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4329 { 4330 nvpair_t *nvp = NULL; 4331 fs_perm_set_t *fspset = fsperm->fsp_set; 4332 4333 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4334 nvlist_t *nvl2 = NULL; 4335 const char *name = nvpair_name(nvp); 4336 uu_avl_t *avl = NULL; 4337 uu_avl_pool_t *avl_pool; 4338 zfs_deleg_who_type_t perm_type = name[0]; 4339 char perm_locality = name[1]; 4340 const char *perm_name = name + 3; 4341 boolean_t is_set = B_TRUE; 4342 who_perm_t *who_perm = NULL; 4343 4344 assert('$' == name[2]); 4345 4346 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4347 return (-1); 4348 4349 switch (perm_type) { 4350 case ZFS_DELEG_CREATE: 4351 case ZFS_DELEG_CREATE_SETS: 4352 case ZFS_DELEG_NAMED_SET: 4353 case ZFS_DELEG_NAMED_SET_SETS: 4354 avl_pool = fspset->fsps_named_set_avl_pool; 4355 avl = fsperm->fsp_sc_avl; 4356 break; 4357 case ZFS_DELEG_USER: 4358 case ZFS_DELEG_USER_SETS: 4359 case ZFS_DELEG_GROUP: 4360 case ZFS_DELEG_GROUP_SETS: 4361 case ZFS_DELEG_EVERYONE: 4362 case ZFS_DELEG_EVERYONE_SETS: 4363 avl_pool = fspset->fsps_who_perm_avl_pool; 4364 avl = fsperm->fsp_uge_avl; 4365 break; 4366 } 4367 4368 if (is_set) { 4369 who_perm_node_t *found_node = NULL; 4370 who_perm_node_t *node = safe_malloc( 4371 sizeof (who_perm_node_t)); 4372 who_perm = &node->who_perm; 4373 uu_avl_index_t idx = 0; 4374 4375 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4376 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4377 4378 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4379 == NULL) { 4380 if (avl == fsperm->fsp_uge_avl) { 4381 uid_t rid = 0; 4382 struct passwd *p = NULL; 4383 struct group *g = NULL; 4384 const char *nice_name = NULL; 4385 4386 switch (perm_type) { 4387 case ZFS_DELEG_USER_SETS: 4388 case ZFS_DELEG_USER: 4389 rid = atoi(perm_name); 4390 p = getpwuid(rid); 4391 if (p) 4392 nice_name = p->pw_name; 4393 break; 4394 case ZFS_DELEG_GROUP_SETS: 4395 case ZFS_DELEG_GROUP: 4396 rid = atoi(perm_name); 4397 g = getgrgid(rid); 4398 if (g) 4399 nice_name = g->gr_name; 4400 break; 4401 } 4402 4403 if (nice_name != NULL) 4404 (void) strlcpy( 4405 node->who_perm.who_ug_name, 4406 nice_name, 256); 4407 } 4408 4409 uu_avl_insert(avl, node, idx); 4410 } else { 4411 node = found_node; 4412 who_perm = &node->who_perm; 4413 } 4414 } 4415 4416 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4417 } 4418 4419 return (0); 4420 } 4421 4422 static inline int 4423 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4424 { 4425 nvpair_t *nvp = NULL; 4426 uu_avl_index_t idx = 0; 4427 4428 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4429 nvlist_t *nvl2 = NULL; 4430 const char *fsname = nvpair_name(nvp); 4431 data_type_t type = nvpair_type(nvp); 4432 fs_perm_t *fsperm = NULL; 4433 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4434 if (node == NULL) 4435 nomem(); 4436 4437 fsperm = &node->fspn_fsperm; 4438 4439 assert(DATA_TYPE_NVLIST == type); 4440 4441 uu_list_node_init(node, &node->fspn_list_node, 4442 fspset->fsps_list_pool); 4443 4444 idx = uu_list_numnodes(fspset->fsps_list); 4445 fs_perm_init(fsperm, fspset, fsname); 4446 4447 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4448 return (-1); 4449 4450 (void) parse_fs_perm(fsperm, nvl2); 4451 4452 uu_list_insert(fspset->fsps_list, node, idx); 4453 } 4454 4455 return (0); 4456 } 4457 4458 static inline const char * 4459 deleg_perm_comment(zfs_deleg_note_t note) 4460 { 4461 const char *str = ""; 4462 4463 /* subcommands */ 4464 switch (note) { 4465 /* SUBCOMMANDS */ 4466 case ZFS_DELEG_NOTE_ALLOW: 4467 str = gettext("Must also have the permission that is being" 4468 "\n\t\t\t\tallowed"); 4469 break; 4470 case ZFS_DELEG_NOTE_CLONE: 4471 str = gettext("Must also have the 'create' ability and 'mount'" 4472 "\n\t\t\t\tability in the origin file system"); 4473 break; 4474 case ZFS_DELEG_NOTE_CREATE: 4475 str = gettext("Must also have the 'mount' ability"); 4476 break; 4477 case ZFS_DELEG_NOTE_DESTROY: 4478 str = gettext("Must also have the 'mount' ability"); 4479 break; 4480 case ZFS_DELEG_NOTE_DIFF: 4481 str = gettext("Allows lookup of paths within a dataset;" 4482 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4483 "\n\t\t\t\tin order to use zfs diff"); 4484 break; 4485 case ZFS_DELEG_NOTE_HOLD: 4486 str = gettext("Allows adding a user hold to a snapshot"); 4487 break; 4488 case ZFS_DELEG_NOTE_MOUNT: 4489 str = gettext("Allows mount/umount of ZFS datasets"); 4490 break; 4491 case ZFS_DELEG_NOTE_PROMOTE: 4492 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4493 " 'promote' ability in the origin file system"); 4494 break; 4495 case ZFS_DELEG_NOTE_RECEIVE: 4496 str = gettext("Must also have the 'mount' and 'create'" 4497 " ability"); 4498 break; 4499 case ZFS_DELEG_NOTE_RELEASE: 4500 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4501 "might destroy the snapshot"); 4502 break; 4503 case ZFS_DELEG_NOTE_RENAME: 4504 str = gettext("Must also have the 'mount' and 'create'" 4505 "\n\t\t\t\tability in the new parent"); 4506 break; 4507 case ZFS_DELEG_NOTE_ROLLBACK: 4508 str = gettext(""); 4509 break; 4510 case ZFS_DELEG_NOTE_SEND: 4511 str = gettext(""); 4512 break; 4513 case ZFS_DELEG_NOTE_SHARE: 4514 str = gettext("Allows sharing file systems over NFS or SMB" 4515 "\n\t\t\t\tprotocols"); 4516 break; 4517 case ZFS_DELEG_NOTE_SNAPSHOT: 4518 str = gettext(""); 4519 break; 4520 /* 4521 * case ZFS_DELEG_NOTE_VSCAN: 4522 * str = gettext(""); 4523 * break; 4524 */ 4525 /* OTHER */ 4526 case ZFS_DELEG_NOTE_GROUPQUOTA: 4527 str = gettext("Allows accessing any groupquota@... property"); 4528 break; 4529 case ZFS_DELEG_NOTE_GROUPUSED: 4530 str = gettext("Allows reading any groupused@... property"); 4531 break; 4532 case ZFS_DELEG_NOTE_USERPROP: 4533 str = gettext("Allows changing any user property"); 4534 break; 4535 case ZFS_DELEG_NOTE_USERQUOTA: 4536 str = gettext("Allows accessing any userquota@... property"); 4537 break; 4538 case ZFS_DELEG_NOTE_USERUSED: 4539 str = gettext("Allows reading any userused@... property"); 4540 break; 4541 /* other */ 4542 default: 4543 str = ""; 4544 } 4545 4546 return (str); 4547 } 4548 4549 struct allow_opts { 4550 boolean_t local; 4551 boolean_t descend; 4552 boolean_t user; 4553 boolean_t group; 4554 boolean_t everyone; 4555 boolean_t create; 4556 boolean_t set; 4557 boolean_t recursive; /* unallow only */ 4558 boolean_t prt_usage; 4559 4560 boolean_t prt_perms; 4561 char *who; 4562 char *perms; 4563 const char *dataset; 4564 }; 4565 4566 static inline int 4567 prop_cmp(const void *a, const void *b) 4568 { 4569 const char *str1 = *(const char **)a; 4570 const char *str2 = *(const char **)b; 4571 return (strcmp(str1, str2)); 4572 } 4573 4574 static void 4575 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4576 { 4577 const char *opt_desc[] = { 4578 "-h", gettext("show this help message and exit"), 4579 "-l", gettext("set permission locally"), 4580 "-d", gettext("set permission for descents"), 4581 "-u", gettext("set permission for user"), 4582 "-g", gettext("set permission for group"), 4583 "-e", gettext("set permission for everyone"), 4584 "-c", gettext("set create time permission"), 4585 "-s", gettext("define permission set"), 4586 /* unallow only */ 4587 "-r", gettext("remove permissions recursively"), 4588 }; 4589 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4590 size_t allow_size = unallow_size - 2; 4591 const char *props[ZFS_NUM_PROPS]; 4592 int i; 4593 size_t count = 0; 4594 FILE *fp = requested ? stdout : stderr; 4595 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4596 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4597 4598 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4599 HELP_ALLOW)); 4600 (void) fprintf(fp, gettext("Options:\n")); 4601 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4602 const char *opt = opt_desc[i++]; 4603 const char *optdsc = opt_desc[i]; 4604 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4605 } 4606 4607 (void) fprintf(fp, gettext("\nThe following permissions are " 4608 "supported:\n\n")); 4609 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4610 gettext("NOTES")); 4611 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4612 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4613 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4614 const char *perm_type = deleg_perm_type(perm_note); 4615 const char *perm_comment = deleg_perm_comment(perm_note); 4616 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4617 } 4618 4619 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4620 zprop_desc_t *pd = &pdtbl[i]; 4621 if (pd->pd_visible != B_TRUE) 4622 continue; 4623 4624 if (pd->pd_attr == PROP_READONLY) 4625 continue; 4626 4627 props[count++] = pd->pd_name; 4628 } 4629 props[count] = NULL; 4630 4631 qsort(props, count, sizeof (char *), prop_cmp); 4632 4633 for (i = 0; i < count; i++) 4634 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4635 4636 if (msg != NULL) 4637 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4638 4639 exit(requested ? 0 : 2); 4640 } 4641 4642 static inline const char * 4643 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4644 char **permsp) 4645 { 4646 if (un && argc == expected_argc - 1) 4647 *permsp = NULL; 4648 else if (argc == expected_argc) 4649 *permsp = argv[argc - 2]; 4650 else 4651 allow_usage(un, B_FALSE, 4652 gettext("wrong number of parameters\n")); 4653 4654 return (argv[argc - 1]); 4655 } 4656 4657 static void 4658 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4659 { 4660 int uge_sum = opts->user + opts->group + opts->everyone; 4661 int csuge_sum = opts->create + opts->set + uge_sum; 4662 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4663 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4664 4665 if (uge_sum > 1) 4666 allow_usage(un, B_FALSE, 4667 gettext("-u, -g, and -e are mutually exclusive\n")); 4668 4669 if (opts->prt_usage) 4670 if (argc == 0 && all_sum == 0) 4671 allow_usage(un, B_TRUE, NULL); 4672 else 4673 usage(B_FALSE); 4674 4675 if (opts->set) { 4676 if (csuge_sum > 1) 4677 allow_usage(un, B_FALSE, 4678 gettext("invalid options combined with -s\n")); 4679 4680 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4681 if (argv[0][0] != '@') 4682 allow_usage(un, B_FALSE, 4683 gettext("invalid set name: missing '@' prefix\n")); 4684 opts->who = argv[0]; 4685 } else if (opts->create) { 4686 if (ldcsuge_sum > 1) 4687 allow_usage(un, B_FALSE, 4688 gettext("invalid options combined with -c\n")); 4689 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4690 } else if (opts->everyone) { 4691 if (csuge_sum > 1) 4692 allow_usage(un, B_FALSE, 4693 gettext("invalid options combined with -e\n")); 4694 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4695 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4696 == 0) { 4697 opts->everyone = B_TRUE; 4698 argc--; 4699 argv++; 4700 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4701 } else if (argc == 1 && !un) { 4702 opts->prt_perms = B_TRUE; 4703 opts->dataset = argv[argc-1]; 4704 } else { 4705 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4706 opts->who = argv[0]; 4707 } 4708 4709 if (!opts->local && !opts->descend) { 4710 opts->local = B_TRUE; 4711 opts->descend = B_TRUE; 4712 } 4713 } 4714 4715 static void 4716 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4717 const char *who, char *perms, nvlist_t *top_nvl) 4718 { 4719 int i; 4720 char ld[2] = { '\0', '\0' }; 4721 char who_buf[ZFS_MAXNAMELEN+32]; 4722 char base_type; 4723 char set_type; 4724 nvlist_t *base_nvl = NULL; 4725 nvlist_t *set_nvl = NULL; 4726 nvlist_t *nvl; 4727 4728 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4729 nomem(); 4730 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4731 nomem(); 4732 4733 switch (type) { 4734 case ZFS_DELEG_NAMED_SET_SETS: 4735 case ZFS_DELEG_NAMED_SET: 4736 set_type = ZFS_DELEG_NAMED_SET_SETS; 4737 base_type = ZFS_DELEG_NAMED_SET; 4738 ld[0] = ZFS_DELEG_NA; 4739 break; 4740 case ZFS_DELEG_CREATE_SETS: 4741 case ZFS_DELEG_CREATE: 4742 set_type = ZFS_DELEG_CREATE_SETS; 4743 base_type = ZFS_DELEG_CREATE; 4744 ld[0] = ZFS_DELEG_NA; 4745 break; 4746 case ZFS_DELEG_USER_SETS: 4747 case ZFS_DELEG_USER: 4748 set_type = ZFS_DELEG_USER_SETS; 4749 base_type = ZFS_DELEG_USER; 4750 if (local) 4751 ld[0] = ZFS_DELEG_LOCAL; 4752 if (descend) 4753 ld[1] = ZFS_DELEG_DESCENDENT; 4754 break; 4755 case ZFS_DELEG_GROUP_SETS: 4756 case ZFS_DELEG_GROUP: 4757 set_type = ZFS_DELEG_GROUP_SETS; 4758 base_type = ZFS_DELEG_GROUP; 4759 if (local) 4760 ld[0] = ZFS_DELEG_LOCAL; 4761 if (descend) 4762 ld[1] = ZFS_DELEG_DESCENDENT; 4763 break; 4764 case ZFS_DELEG_EVERYONE_SETS: 4765 case ZFS_DELEG_EVERYONE: 4766 set_type = ZFS_DELEG_EVERYONE_SETS; 4767 base_type = ZFS_DELEG_EVERYONE; 4768 if (local) 4769 ld[0] = ZFS_DELEG_LOCAL; 4770 if (descend) 4771 ld[1] = ZFS_DELEG_DESCENDENT; 4772 } 4773 4774 if (perms != NULL) { 4775 char *curr = perms; 4776 char *end = curr + strlen(perms); 4777 4778 while (curr < end) { 4779 char *delim = strchr(curr, ','); 4780 if (delim == NULL) 4781 delim = end; 4782 else 4783 *delim = '\0'; 4784 4785 if (curr[0] == '@') 4786 nvl = set_nvl; 4787 else 4788 nvl = base_nvl; 4789 4790 (void) nvlist_add_boolean(nvl, curr); 4791 if (delim != end) 4792 *delim = ','; 4793 curr = delim + 1; 4794 } 4795 4796 for (i = 0; i < 2; i++) { 4797 char locality = ld[i]; 4798 if (locality == 0) 4799 continue; 4800 4801 if (!nvlist_empty(base_nvl)) { 4802 if (who != NULL) 4803 (void) snprintf(who_buf, 4804 sizeof (who_buf), "%c%c$%s", 4805 base_type, locality, who); 4806 else 4807 (void) snprintf(who_buf, 4808 sizeof (who_buf), "%c%c$", 4809 base_type, locality); 4810 4811 (void) nvlist_add_nvlist(top_nvl, who_buf, 4812 base_nvl); 4813 } 4814 4815 4816 if (!nvlist_empty(set_nvl)) { 4817 if (who != NULL) 4818 (void) snprintf(who_buf, 4819 sizeof (who_buf), "%c%c$%s", 4820 set_type, locality, who); 4821 else 4822 (void) snprintf(who_buf, 4823 sizeof (who_buf), "%c%c$", 4824 set_type, locality); 4825 4826 (void) nvlist_add_nvlist(top_nvl, who_buf, 4827 set_nvl); 4828 } 4829 } 4830 } else { 4831 for (i = 0; i < 2; i++) { 4832 char locality = ld[i]; 4833 if (locality == 0) 4834 continue; 4835 4836 if (who != NULL) 4837 (void) snprintf(who_buf, sizeof (who_buf), 4838 "%c%c$%s", base_type, locality, who); 4839 else 4840 (void) snprintf(who_buf, sizeof (who_buf), 4841 "%c%c$", base_type, locality); 4842 (void) nvlist_add_boolean(top_nvl, who_buf); 4843 4844 if (who != NULL) 4845 (void) snprintf(who_buf, sizeof (who_buf), 4846 "%c%c$%s", set_type, locality, who); 4847 else 4848 (void) snprintf(who_buf, sizeof (who_buf), 4849 "%c%c$", set_type, locality); 4850 (void) nvlist_add_boolean(top_nvl, who_buf); 4851 } 4852 } 4853 } 4854 4855 static int 4856 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4857 { 4858 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4859 nomem(); 4860 4861 if (opts->set) { 4862 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4863 opts->descend, opts->who, opts->perms, *nvlp); 4864 } else if (opts->create) { 4865 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 4866 opts->descend, NULL, opts->perms, *nvlp); 4867 } else if (opts->everyone) { 4868 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 4869 opts->descend, NULL, opts->perms, *nvlp); 4870 } else { 4871 char *curr = opts->who; 4872 char *end = curr + strlen(curr); 4873 4874 while (curr < end) { 4875 const char *who; 4876 zfs_deleg_who_type_t who_type; 4877 char *endch; 4878 char *delim = strchr(curr, ','); 4879 char errbuf[256]; 4880 char id[64]; 4881 struct passwd *p = NULL; 4882 struct group *g = NULL; 4883 4884 uid_t rid; 4885 if (delim == NULL) 4886 delim = end; 4887 else 4888 *delim = '\0'; 4889 4890 rid = (uid_t)strtol(curr, &endch, 0); 4891 if (opts->user) { 4892 who_type = ZFS_DELEG_USER; 4893 if (*endch != '\0') 4894 p = getpwnam(curr); 4895 else 4896 p = getpwuid(rid); 4897 4898 if (p != NULL) 4899 rid = p->pw_uid; 4900 else { 4901 (void) snprintf(errbuf, 256, gettext( 4902 "invalid user %s"), curr); 4903 allow_usage(un, B_TRUE, errbuf); 4904 } 4905 } else if (opts->group) { 4906 who_type = ZFS_DELEG_GROUP; 4907 if (*endch != '\0') 4908 g = getgrnam(curr); 4909 else 4910 g = getgrgid(rid); 4911 4912 if (g != NULL) 4913 rid = g->gr_gid; 4914 else { 4915 (void) snprintf(errbuf, 256, gettext( 4916 "invalid group %s"), curr); 4917 allow_usage(un, B_TRUE, errbuf); 4918 } 4919 } else { 4920 if (*endch != '\0') { 4921 p = getpwnam(curr); 4922 } else { 4923 p = getpwuid(rid); 4924 } 4925 4926 if (p == NULL) 4927 if (*endch != '\0') { 4928 g = getgrnam(curr); 4929 } else { 4930 g = getgrgid(rid); 4931 } 4932 4933 if (p != NULL) { 4934 who_type = ZFS_DELEG_USER; 4935 rid = p->pw_uid; 4936 } else if (g != NULL) { 4937 who_type = ZFS_DELEG_GROUP; 4938 rid = g->gr_gid; 4939 } else { 4940 (void) snprintf(errbuf, 256, gettext( 4941 "invalid user/group %s"), curr); 4942 allow_usage(un, B_TRUE, errbuf); 4943 } 4944 } 4945 4946 (void) sprintf(id, "%u", rid); 4947 who = id; 4948 4949 store_allow_perm(who_type, opts->local, 4950 opts->descend, who, opts->perms, *nvlp); 4951 curr = delim + 1; 4952 } 4953 } 4954 4955 return (0); 4956 } 4957 4958 static void 4959 print_set_creat_perms(uu_avl_t *who_avl) 4960 { 4961 const char *sc_title[] = { 4962 gettext("Permission sets:\n"), 4963 gettext("Create time permissions:\n"), 4964 NULL 4965 }; 4966 const char **title_ptr = sc_title; 4967 who_perm_node_t *who_node = NULL; 4968 int prev_weight = -1; 4969 4970 for (who_node = uu_avl_first(who_avl); who_node != NULL; 4971 who_node = uu_avl_next(who_avl, who_node)) { 4972 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 4973 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 4974 const char *who_name = who_node->who_perm.who_name; 4975 int weight = who_type2weight(who_type); 4976 boolean_t first = B_TRUE; 4977 deleg_perm_node_t *deleg_node; 4978 4979 if (prev_weight != weight) { 4980 (void) printf(*title_ptr++); 4981 prev_weight = weight; 4982 } 4983 4984 if (who_name == NULL || strnlen(who_name, 1) == 0) 4985 (void) printf("\t"); 4986 else 4987 (void) printf("\t%s ", who_name); 4988 4989 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 4990 deleg_node = uu_avl_next(avl, deleg_node)) { 4991 if (first) { 4992 (void) printf("%s", 4993 deleg_node->dpn_perm.dp_name); 4994 first = B_FALSE; 4995 } else 4996 (void) printf(",%s", 4997 deleg_node->dpn_perm.dp_name); 4998 } 4999 5000 (void) printf("\n"); 5001 } 5002 } 5003 5004 static void inline 5005 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5006 const char *title) 5007 { 5008 who_perm_node_t *who_node = NULL; 5009 boolean_t prt_title = B_TRUE; 5010 uu_avl_walk_t *walk; 5011 5012 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5013 nomem(); 5014 5015 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5016 const char *who_name = who_node->who_perm.who_name; 5017 const char *nice_who_name = who_node->who_perm.who_ug_name; 5018 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5019 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5020 char delim = ' '; 5021 deleg_perm_node_t *deleg_node; 5022 boolean_t prt_who = B_TRUE; 5023 5024 for (deleg_node = uu_avl_first(avl); 5025 deleg_node != NULL; 5026 deleg_node = uu_avl_next(avl, deleg_node)) { 5027 if (local != deleg_node->dpn_perm.dp_local || 5028 descend != deleg_node->dpn_perm.dp_descend) 5029 continue; 5030 5031 if (prt_who) { 5032 const char *who = NULL; 5033 if (prt_title) { 5034 prt_title = B_FALSE; 5035 (void) printf(title); 5036 } 5037 5038 switch (who_type) { 5039 case ZFS_DELEG_USER_SETS: 5040 case ZFS_DELEG_USER: 5041 who = gettext("user"); 5042 if (nice_who_name) 5043 who_name = nice_who_name; 5044 break; 5045 case ZFS_DELEG_GROUP_SETS: 5046 case ZFS_DELEG_GROUP: 5047 who = gettext("group"); 5048 if (nice_who_name) 5049 who_name = nice_who_name; 5050 break; 5051 case ZFS_DELEG_EVERYONE_SETS: 5052 case ZFS_DELEG_EVERYONE: 5053 who = gettext("everyone"); 5054 who_name = NULL; 5055 } 5056 5057 prt_who = B_FALSE; 5058 if (who_name == NULL) 5059 (void) printf("\t%s", who); 5060 else 5061 (void) printf("\t%s %s", who, who_name); 5062 } 5063 5064 (void) printf("%c%s", delim, 5065 deleg_node->dpn_perm.dp_name); 5066 delim = ','; 5067 } 5068 5069 if (!prt_who) 5070 (void) printf("\n"); 5071 } 5072 5073 uu_avl_walk_end(walk); 5074 } 5075 5076 static void 5077 print_fs_perms(fs_perm_set_t *fspset) 5078 { 5079 fs_perm_node_t *node = NULL; 5080 char buf[ZFS_MAXNAMELEN+32]; 5081 const char *dsname = buf; 5082 5083 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5084 node = uu_list_next(fspset->fsps_list, node)) { 5085 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5086 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5087 int left = 0; 5088 5089 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5090 gettext("---- Permissions on %s "), 5091 node->fspn_fsperm.fsp_name); 5092 (void) printf(dsname); 5093 left = 70 - strlen(buf); 5094 while (left-- > 0) 5095 (void) printf("-"); 5096 (void) printf("\n"); 5097 5098 print_set_creat_perms(sc_avl); 5099 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5100 gettext("Local permissions:\n")); 5101 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5102 gettext("Descendent permissions:\n")); 5103 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5104 gettext("Local+Descendent permissions:\n")); 5105 } 5106 } 5107 5108 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5109 5110 struct deleg_perms { 5111 boolean_t un; 5112 nvlist_t *nvl; 5113 }; 5114 5115 static int 5116 set_deleg_perms(zfs_handle_t *zhp, void *data) 5117 { 5118 struct deleg_perms *perms = (struct deleg_perms *)data; 5119 zfs_type_t zfs_type = zfs_get_type(zhp); 5120 5121 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5122 return (0); 5123 5124 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5125 } 5126 5127 static int 5128 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5129 { 5130 zfs_handle_t *zhp; 5131 nvlist_t *perm_nvl = NULL; 5132 nvlist_t *update_perm_nvl = NULL; 5133 int error = 1; 5134 int c; 5135 struct allow_opts opts = { 0 }; 5136 5137 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5138 5139 /* check opts */ 5140 while ((c = getopt(argc, argv, optstr)) != -1) { 5141 switch (c) { 5142 case 'l': 5143 opts.local = B_TRUE; 5144 break; 5145 case 'd': 5146 opts.descend = B_TRUE; 5147 break; 5148 case 'u': 5149 opts.user = B_TRUE; 5150 break; 5151 case 'g': 5152 opts.group = B_TRUE; 5153 break; 5154 case 'e': 5155 opts.everyone = B_TRUE; 5156 break; 5157 case 's': 5158 opts.set = B_TRUE; 5159 break; 5160 case 'c': 5161 opts.create = B_TRUE; 5162 break; 5163 case 'r': 5164 opts.recursive = B_TRUE; 5165 break; 5166 case ':': 5167 (void) fprintf(stderr, gettext("missing argument for " 5168 "'%c' option\n"), optopt); 5169 usage(B_FALSE); 5170 break; 5171 case 'h': 5172 opts.prt_usage = B_TRUE; 5173 break; 5174 case '?': 5175 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5176 optopt); 5177 usage(B_FALSE); 5178 } 5179 } 5180 5181 argc -= optind; 5182 argv += optind; 5183 5184 /* check arguments */ 5185 parse_allow_args(argc, argv, un, &opts); 5186 5187 /* try to open the dataset */ 5188 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5189 ZFS_TYPE_VOLUME)) == NULL) { 5190 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5191 opts.dataset); 5192 return (-1); 5193 } 5194 5195 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5196 goto cleanup2; 5197 5198 fs_perm_set_init(&fs_perm_set); 5199 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5200 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5201 goto cleanup1; 5202 } 5203 5204 if (opts.prt_perms) 5205 print_fs_perms(&fs_perm_set); 5206 else { 5207 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5208 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5209 goto cleanup0; 5210 5211 if (un && opts.recursive) { 5212 struct deleg_perms data = { un, update_perm_nvl }; 5213 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5214 &data) != 0) 5215 goto cleanup0; 5216 } 5217 } 5218 5219 error = 0; 5220 5221 cleanup0: 5222 nvlist_free(perm_nvl); 5223 if (update_perm_nvl != NULL) 5224 nvlist_free(update_perm_nvl); 5225 cleanup1: 5226 fs_perm_set_fini(&fs_perm_set); 5227 cleanup2: 5228 zfs_close(zhp); 5229 5230 return (error); 5231 } 5232 5233 static int 5234 zfs_do_allow(int argc, char **argv) 5235 { 5236 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5237 } 5238 5239 static int 5240 zfs_do_unallow(int argc, char **argv) 5241 { 5242 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5243 } 5244 5245 static int 5246 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5247 { 5248 int errors = 0; 5249 int i; 5250 const char *tag; 5251 boolean_t recursive = B_FALSE; 5252 const char *opts = holding ? "rt" : "r"; 5253 int c; 5254 5255 /* check options */ 5256 while ((c = getopt(argc, argv, opts)) != -1) { 5257 switch (c) { 5258 case 'r': 5259 recursive = B_TRUE; 5260 break; 5261 case '?': 5262 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5263 optopt); 5264 usage(B_FALSE); 5265 } 5266 } 5267 5268 argc -= optind; 5269 argv += optind; 5270 5271 /* check number of arguments */ 5272 if (argc < 2) 5273 usage(B_FALSE); 5274 5275 tag = argv[0]; 5276 --argc; 5277 ++argv; 5278 5279 if (holding && tag[0] == '.') { 5280 /* tags starting with '.' are reserved for libzfs */ 5281 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5282 usage(B_FALSE); 5283 } 5284 5285 for (i = 0; i < argc; ++i) { 5286 zfs_handle_t *zhp; 5287 char parent[ZFS_MAXNAMELEN]; 5288 const char *delim; 5289 char *path = argv[i]; 5290 5291 delim = strchr(path, '@'); 5292 if (delim == NULL) { 5293 (void) fprintf(stderr, 5294 gettext("'%s' is not a snapshot\n"), path); 5295 ++errors; 5296 continue; 5297 } 5298 (void) strncpy(parent, path, delim - path); 5299 parent[delim - path] = '\0'; 5300 5301 zhp = zfs_open(g_zfs, parent, 5302 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5303 if (zhp == NULL) { 5304 ++errors; 5305 continue; 5306 } 5307 if (holding) { 5308 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5309 ++errors; 5310 } else { 5311 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5312 ++errors; 5313 } 5314 zfs_close(zhp); 5315 } 5316 5317 return (errors != 0); 5318 } 5319 5320 /* 5321 * zfs hold [-r] [-t] <tag> <snap> ... 5322 * 5323 * -r Recursively hold 5324 * 5325 * Apply a user-hold with the given tag to the list of snapshots. 5326 */ 5327 static int 5328 zfs_do_hold(int argc, char **argv) 5329 { 5330 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5331 } 5332 5333 /* 5334 * zfs release [-r] <tag> <snap> ... 5335 * 5336 * -r Recursively release 5337 * 5338 * Release a user-hold with the given tag from the list of snapshots. 5339 */ 5340 static int 5341 zfs_do_release(int argc, char **argv) 5342 { 5343 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5344 } 5345 5346 typedef struct holds_cbdata { 5347 boolean_t cb_recursive; 5348 const char *cb_snapname; 5349 nvlist_t **cb_nvlp; 5350 size_t cb_max_namelen; 5351 size_t cb_max_taglen; 5352 } holds_cbdata_t; 5353 5354 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5355 #define DATETIME_BUF_LEN (32) 5356 /* 5357 * 5358 */ 5359 static void 5360 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5361 { 5362 int i; 5363 nvpair_t *nvp = NULL; 5364 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5365 const char *col; 5366 5367 if (!scripted) { 5368 for (i = 0; i < 3; i++) { 5369 col = gettext(hdr_cols[i]); 5370 if (i < 2) 5371 (void) printf("%-*s ", i ? tagwidth : nwidth, 5372 col); 5373 else 5374 (void) printf("%s\n", col); 5375 } 5376 } 5377 5378 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5379 char *zname = nvpair_name(nvp); 5380 nvlist_t *nvl2; 5381 nvpair_t *nvp2 = NULL; 5382 (void) nvpair_value_nvlist(nvp, &nvl2); 5383 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5384 char tsbuf[DATETIME_BUF_LEN]; 5385 char *tagname = nvpair_name(nvp2); 5386 uint64_t val = 0; 5387 time_t time; 5388 struct tm t; 5389 char sep = scripted ? '\t' : ' '; 5390 size_t sepnum = scripted ? 1 : 2; 5391 5392 (void) nvpair_value_uint64(nvp2, &val); 5393 time = (time_t)val; 5394 (void) localtime_r(&time, &t); 5395 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5396 gettext(STRFTIME_FMT_STR), &t); 5397 5398 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5399 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5400 } 5401 } 5402 } 5403 5404 /* 5405 * Generic callback function to list a dataset or snapshot. 5406 */ 5407 static int 5408 holds_callback(zfs_handle_t *zhp, void *data) 5409 { 5410 holds_cbdata_t *cbp = data; 5411 nvlist_t *top_nvl = *cbp->cb_nvlp; 5412 nvlist_t *nvl = NULL; 5413 nvpair_t *nvp = NULL; 5414 const char *zname = zfs_get_name(zhp); 5415 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5416 5417 if (cbp->cb_recursive) { 5418 const char *snapname; 5419 char *delim = strchr(zname, '@'); 5420 if (delim == NULL) 5421 return (0); 5422 5423 snapname = delim + 1; 5424 if (strcmp(cbp->cb_snapname, snapname)) 5425 return (0); 5426 } 5427 5428 if (zfs_get_holds(zhp, &nvl) != 0) 5429 return (-1); 5430 5431 if (znamelen > cbp->cb_max_namelen) 5432 cbp->cb_max_namelen = znamelen; 5433 5434 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5435 const char *tag = nvpair_name(nvp); 5436 size_t taglen = strnlen(tag, MAXNAMELEN); 5437 if (taglen > cbp->cb_max_taglen) 5438 cbp->cb_max_taglen = taglen; 5439 } 5440 5441 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5442 } 5443 5444 /* 5445 * zfs holds [-r] <snap> ... 5446 * 5447 * -r Recursively hold 5448 */ 5449 static int 5450 zfs_do_holds(int argc, char **argv) 5451 { 5452 int errors = 0; 5453 int c; 5454 int i; 5455 boolean_t scripted = B_FALSE; 5456 boolean_t recursive = B_FALSE; 5457 const char *opts = "rH"; 5458 nvlist_t *nvl; 5459 5460 int types = ZFS_TYPE_SNAPSHOT; 5461 holds_cbdata_t cb = { 0 }; 5462 5463 int limit = 0; 5464 int ret = 0; 5465 int flags = 0; 5466 5467 /* check options */ 5468 while ((c = getopt(argc, argv, opts)) != -1) { 5469 switch (c) { 5470 case 'r': 5471 recursive = B_TRUE; 5472 break; 5473 case 'H': 5474 scripted = B_TRUE; 5475 break; 5476 case '?': 5477 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5478 optopt); 5479 usage(B_FALSE); 5480 } 5481 } 5482 5483 if (recursive) { 5484 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5485 flags |= ZFS_ITER_RECURSE; 5486 } 5487 5488 argc -= optind; 5489 argv += optind; 5490 5491 /* check number of arguments */ 5492 if (argc < 1) 5493 usage(B_FALSE); 5494 5495 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5496 nomem(); 5497 5498 for (i = 0; i < argc; ++i) { 5499 char *snapshot = argv[i]; 5500 const char *delim; 5501 const char *snapname; 5502 5503 delim = strchr(snapshot, '@'); 5504 if (delim == NULL) { 5505 (void) fprintf(stderr, 5506 gettext("'%s' is not a snapshot\n"), snapshot); 5507 ++errors; 5508 continue; 5509 } 5510 snapname = delim + 1; 5511 if (recursive) 5512 snapshot[delim - snapshot] = '\0'; 5513 5514 cb.cb_recursive = recursive; 5515 cb.cb_snapname = snapname; 5516 cb.cb_nvlp = &nvl; 5517 5518 /* 5519 * 1. collect holds data, set format options 5520 */ 5521 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5522 holds_callback, &cb); 5523 if (ret != 0) 5524 ++errors; 5525 } 5526 5527 /* 5528 * 2. print holds data 5529 */ 5530 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5531 5532 if (nvlist_empty(nvl)) 5533 (void) printf(gettext("no datasets available\n")); 5534 5535 nvlist_free(nvl); 5536 5537 return (0 != errors); 5538 } 5539 5540 #define CHECK_SPINNER 30 5541 #define SPINNER_TIME 3 /* seconds */ 5542 #define MOUNT_TIME 5 /* seconds */ 5543 5544 static int 5545 get_one_dataset(zfs_handle_t *zhp, void *data) 5546 { 5547 static char *spin[] = { "-", "\\", "|", "/" }; 5548 static int spinval = 0; 5549 static int spincheck = 0; 5550 static time_t last_spin_time = (time_t)0; 5551 get_all_cb_t *cbp = data; 5552 zfs_type_t type = zfs_get_type(zhp); 5553 5554 if (cbp->cb_verbose) { 5555 if (--spincheck < 0) { 5556 time_t now = time(NULL); 5557 if (last_spin_time + SPINNER_TIME < now) { 5558 update_progress(spin[spinval++ % 4]); 5559 last_spin_time = now; 5560 } 5561 spincheck = CHECK_SPINNER; 5562 } 5563 } 5564 5565 /* 5566 * Interate over any nested datasets. 5567 */ 5568 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5569 zfs_close(zhp); 5570 return (1); 5571 } 5572 5573 /* 5574 * Skip any datasets whose type does not match. 5575 */ 5576 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5577 zfs_close(zhp); 5578 return (0); 5579 } 5580 libzfs_add_handle(cbp, zhp); 5581 assert(cbp->cb_used <= cbp->cb_alloc); 5582 5583 return (0); 5584 } 5585 5586 static void 5587 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5588 { 5589 get_all_cb_t cb = { 0 }; 5590 cb.cb_verbose = verbose; 5591 cb.cb_getone = get_one_dataset; 5592 5593 if (verbose) 5594 set_progress_header(gettext("Reading ZFS config")); 5595 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5596 5597 *dslist = cb.cb_handles; 5598 *count = cb.cb_used; 5599 5600 if (verbose) 5601 finish_progress(gettext("done.")); 5602 } 5603 5604 /* 5605 * Generic callback for sharing or mounting filesystems. Because the code is so 5606 * similar, we have a common function with an extra parameter to determine which 5607 * mode we are using. 5608 */ 5609 #define OP_SHARE 0x1 5610 #define OP_MOUNT 0x2 5611 5612 /* 5613 * Share or mount a dataset. 5614 */ 5615 static int 5616 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5617 boolean_t explicit, const char *options) 5618 { 5619 char mountpoint[ZFS_MAXPROPLEN]; 5620 char shareopts[ZFS_MAXPROPLEN]; 5621 char smbshareopts[ZFS_MAXPROPLEN]; 5622 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5623 struct mnttab mnt; 5624 uint64_t zoned, canmount; 5625 boolean_t shared_nfs, shared_smb; 5626 5627 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5628 5629 /* 5630 * Check to make sure we can mount/share this dataset. If we 5631 * are in the global zone and the filesystem is exported to a 5632 * local zone, or if we are in a local zone and the 5633 * filesystem is not exported, then it is an error. 5634 */ 5635 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5636 5637 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5638 if (!explicit) 5639 return (0); 5640 5641 (void) fprintf(stderr, gettext("cannot %s '%s': " 5642 "dataset is exported to a local zone\n"), cmdname, 5643 zfs_get_name(zhp)); 5644 return (1); 5645 5646 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5647 if (!explicit) 5648 return (0); 5649 5650 (void) fprintf(stderr, gettext("cannot %s '%s': " 5651 "permission denied\n"), cmdname, 5652 zfs_get_name(zhp)); 5653 return (1); 5654 } 5655 5656 /* 5657 * Ignore any filesystems which don't apply to us. This 5658 * includes those with a legacy mountpoint, or those with 5659 * legacy share options. 5660 */ 5661 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5662 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5663 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5664 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5665 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5666 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5667 5668 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5669 strcmp(smbshareopts, "off") == 0) { 5670 if (!explicit) 5671 return (0); 5672 5673 (void) fprintf(stderr, gettext("cannot share '%s': " 5674 "legacy share\n"), zfs_get_name(zhp)); 5675 (void) fprintf(stderr, gettext("use share(1M) to " 5676 "share this filesystem, or set " 5677 "sharenfs property on\n")); 5678 return (1); 5679 } 5680 5681 /* 5682 * We cannot share or mount legacy filesystems. If the 5683 * shareopts is non-legacy but the mountpoint is legacy, we 5684 * treat it as a legacy share. 5685 */ 5686 if (strcmp(mountpoint, "legacy") == 0) { 5687 if (!explicit) 5688 return (0); 5689 5690 (void) fprintf(stderr, gettext("cannot %s '%s': " 5691 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5692 (void) fprintf(stderr, gettext("use %s(1M) to " 5693 "%s this filesystem\n"), cmdname, cmdname); 5694 return (1); 5695 } 5696 5697 if (strcmp(mountpoint, "none") == 0) { 5698 if (!explicit) 5699 return (0); 5700 5701 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5702 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5703 return (1); 5704 } 5705 5706 /* 5707 * canmount explicit outcome 5708 * on no pass through 5709 * on yes pass through 5710 * off no return 0 5711 * off yes display error, return 1 5712 * noauto no return 0 5713 * noauto yes pass through 5714 */ 5715 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5716 if (canmount == ZFS_CANMOUNT_OFF) { 5717 if (!explicit) 5718 return (0); 5719 5720 (void) fprintf(stderr, gettext("cannot %s '%s': " 5721 "'canmount' property is set to 'off'\n"), cmdname, 5722 zfs_get_name(zhp)); 5723 return (1); 5724 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5725 return (0); 5726 } 5727 5728 /* 5729 * At this point, we have verified that the mountpoint and/or 5730 * shareopts are appropriate for auto management. If the 5731 * filesystem is already mounted or shared, return (failing 5732 * for explicit requests); otherwise mount or share the 5733 * filesystem. 5734 */ 5735 switch (op) { 5736 case OP_SHARE: 5737 5738 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5739 shared_smb = zfs_is_shared_smb(zhp, NULL); 5740 5741 if (shared_nfs && shared_smb || 5742 (shared_nfs && strcmp(shareopts, "on") == 0 && 5743 strcmp(smbshareopts, "off") == 0) || 5744 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5745 strcmp(shareopts, "off") == 0)) { 5746 if (!explicit) 5747 return (0); 5748 5749 (void) fprintf(stderr, gettext("cannot share " 5750 "'%s': filesystem already shared\n"), 5751 zfs_get_name(zhp)); 5752 return (1); 5753 } 5754 5755 if (!zfs_is_mounted(zhp, NULL) && 5756 zfs_mount(zhp, NULL, 0) != 0) 5757 return (1); 5758 5759 if (protocol == NULL) { 5760 if (zfs_shareall(zhp) != 0) 5761 return (1); 5762 } else if (strcmp(protocol, "nfs") == 0) { 5763 if (zfs_share_nfs(zhp)) 5764 return (1); 5765 } else if (strcmp(protocol, "smb") == 0) { 5766 if (zfs_share_smb(zhp)) 5767 return (1); 5768 } else { 5769 (void) fprintf(stderr, gettext("cannot share " 5770 "'%s': invalid share type '%s' " 5771 "specified\n"), 5772 zfs_get_name(zhp), protocol); 5773 return (1); 5774 } 5775 5776 break; 5777 5778 case OP_MOUNT: 5779 if (options == NULL) 5780 mnt.mnt_mntopts = ""; 5781 else 5782 mnt.mnt_mntopts = (char *)options; 5783 5784 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5785 zfs_is_mounted(zhp, NULL)) { 5786 if (!explicit) 5787 return (0); 5788 5789 (void) fprintf(stderr, gettext("cannot mount " 5790 "'%s': filesystem already mounted\n"), 5791 zfs_get_name(zhp)); 5792 return (1); 5793 } 5794 5795 if (zfs_mount(zhp, options, flags) != 0) 5796 return (1); 5797 break; 5798 } 5799 5800 return (0); 5801 } 5802 5803 /* 5804 * Reports progress in the form "(current/total)". Not thread-safe. 5805 */ 5806 static void 5807 report_mount_progress(int current, int total) 5808 { 5809 static time_t last_progress_time = 0; 5810 time_t now = time(NULL); 5811 char info[32]; 5812 5813 /* report 1..n instead of 0..n-1 */ 5814 ++current; 5815 5816 /* display header if we're here for the first time */ 5817 if (current == 1) { 5818 set_progress_header(gettext("Mounting ZFS filesystems")); 5819 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5820 /* too soon to report again */ 5821 return; 5822 } 5823 5824 last_progress_time = now; 5825 5826 (void) sprintf(info, "(%d/%d)", current, total); 5827 5828 if (current == total) 5829 finish_progress(info); 5830 else 5831 update_progress(info); 5832 } 5833 5834 static void 5835 append_options(char *mntopts, char *newopts) 5836 { 5837 int len = strlen(mntopts); 5838 5839 /* original length plus new string to append plus 1 for the comma */ 5840 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5841 (void) fprintf(stderr, gettext("the opts argument for " 5842 "'%c' option is too long (more than %d chars)\n"), 5843 "-o", MNT_LINE_MAX); 5844 usage(B_FALSE); 5845 } 5846 5847 if (*mntopts) 5848 mntopts[len++] = ','; 5849 5850 (void) strcpy(&mntopts[len], newopts); 5851 } 5852 5853 static int 5854 share_mount(int op, int argc, char **argv) 5855 { 5856 int do_all = 0; 5857 boolean_t verbose = B_FALSE; 5858 int c, ret = 0; 5859 char *options = NULL; 5860 int flags = 0; 5861 5862 /* check options */ 5863 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 5864 != -1) { 5865 switch (c) { 5866 case 'a': 5867 do_all = 1; 5868 break; 5869 case 'v': 5870 verbose = B_TRUE; 5871 break; 5872 case 'o': 5873 if (*optarg == '\0') { 5874 (void) fprintf(stderr, gettext("empty mount " 5875 "options (-o) specified\n")); 5876 usage(B_FALSE); 5877 } 5878 5879 if (options == NULL) 5880 options = safe_malloc(MNT_LINE_MAX + 1); 5881 5882 /* option validation is done later */ 5883 append_options(options, optarg); 5884 break; 5885 5886 case 'O': 5887 flags |= MS_OVERLAY; 5888 break; 5889 case ':': 5890 (void) fprintf(stderr, gettext("missing argument for " 5891 "'%c' option\n"), optopt); 5892 usage(B_FALSE); 5893 break; 5894 case '?': 5895 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5896 optopt); 5897 usage(B_FALSE); 5898 } 5899 } 5900 5901 argc -= optind; 5902 argv += optind; 5903 5904 /* check number of arguments */ 5905 if (do_all) { 5906 zfs_handle_t **dslist = NULL; 5907 size_t i, count = 0; 5908 char *protocol = NULL; 5909 5910 if (op == OP_SHARE && argc > 0) { 5911 if (strcmp(argv[0], "nfs") != 0 && 5912 strcmp(argv[0], "smb") != 0) { 5913 (void) fprintf(stderr, gettext("share type " 5914 "must be 'nfs' or 'smb'\n")); 5915 usage(B_FALSE); 5916 } 5917 protocol = argv[0]; 5918 argc--; 5919 argv++; 5920 } 5921 5922 if (argc != 0) { 5923 (void) fprintf(stderr, gettext("too many arguments\n")); 5924 usage(B_FALSE); 5925 } 5926 5927 start_progress_timer(); 5928 get_all_datasets(&dslist, &count, verbose); 5929 5930 if (count == 0) 5931 return (0); 5932 5933 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 5934 5935 for (i = 0; i < count; i++) { 5936 if (verbose) 5937 report_mount_progress(i, count); 5938 5939 if (share_mount_one(dslist[i], op, flags, protocol, 5940 B_FALSE, options) != 0) 5941 ret = 1; 5942 zfs_close(dslist[i]); 5943 } 5944 5945 free(dslist); 5946 } else if (argc == 0) { 5947 struct mnttab entry; 5948 5949 if ((op == OP_SHARE) || (options != NULL)) { 5950 (void) fprintf(stderr, gettext("missing filesystem " 5951 "argument (specify -a for all)\n")); 5952 usage(B_FALSE); 5953 } 5954 5955 /* 5956 * When mount is given no arguments, go through /etc/mnttab and 5957 * display any active ZFS mounts. We hide any snapshots, since 5958 * they are controlled automatically. 5959 */ 5960 rewind(mnttab_file); 5961 while (getmntent(mnttab_file, &entry) == 0) { 5962 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 5963 strchr(entry.mnt_special, '@') != NULL) 5964 continue; 5965 5966 (void) printf("%-30s %s\n", entry.mnt_special, 5967 entry.mnt_mountp); 5968 } 5969 5970 } else { 5971 zfs_handle_t *zhp; 5972 5973 if (argc > 1) { 5974 (void) fprintf(stderr, 5975 gettext("too many arguments\n")); 5976 usage(B_FALSE); 5977 } 5978 5979 if ((zhp = zfs_open(g_zfs, argv[0], 5980 ZFS_TYPE_FILESYSTEM)) == NULL) { 5981 ret = 1; 5982 } else { 5983 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 5984 options); 5985 zfs_close(zhp); 5986 } 5987 } 5988 5989 return (ret); 5990 } 5991 5992 /* 5993 * zfs mount -a [nfs] 5994 * zfs mount filesystem 5995 * 5996 * Mount all filesystems, or mount the given filesystem. 5997 */ 5998 static int 5999 zfs_do_mount(int argc, char **argv) 6000 { 6001 return (share_mount(OP_MOUNT, argc, argv)); 6002 } 6003 6004 /* 6005 * zfs share -a [nfs | smb] 6006 * zfs share filesystem 6007 * 6008 * Share all filesystems, or share the given filesystem. 6009 */ 6010 static int 6011 zfs_do_share(int argc, char **argv) 6012 { 6013 return (share_mount(OP_SHARE, argc, argv)); 6014 } 6015 6016 typedef struct unshare_unmount_node { 6017 zfs_handle_t *un_zhp; 6018 char *un_mountp; 6019 uu_avl_node_t un_avlnode; 6020 } unshare_unmount_node_t; 6021 6022 /* ARGSUSED */ 6023 static int 6024 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6025 { 6026 const unshare_unmount_node_t *l = larg; 6027 const unshare_unmount_node_t *r = rarg; 6028 6029 return (strcmp(l->un_mountp, r->un_mountp)); 6030 } 6031 6032 /* 6033 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6034 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6035 * and unmount it appropriately. 6036 */ 6037 static int 6038 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6039 { 6040 zfs_handle_t *zhp; 6041 int ret = 0; 6042 struct stat64 statbuf; 6043 struct extmnttab entry; 6044 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6045 ino_t path_inode; 6046 6047 /* 6048 * Search for the path in /etc/mnttab. Rather than looking for the 6049 * specific path, which can be fooled by non-standard paths (i.e. ".." 6050 * or "//"), we stat() the path and search for the corresponding 6051 * (major,minor) device pair. 6052 */ 6053 if (stat64(path, &statbuf) != 0) { 6054 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6055 cmdname, path, strerror(errno)); 6056 return (1); 6057 } 6058 path_inode = statbuf.st_ino; 6059 6060 /* 6061 * Search for the given (major,minor) pair in the mount table. 6062 */ 6063 rewind(mnttab_file); 6064 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6065 if (entry.mnt_major == major(statbuf.st_dev) && 6066 entry.mnt_minor == minor(statbuf.st_dev)) 6067 break; 6068 } 6069 if (ret != 0) { 6070 if (op == OP_SHARE) { 6071 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6072 "currently mounted\n"), cmdname, path); 6073 return (1); 6074 } 6075 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6076 path); 6077 if ((ret = umount2(path, flags)) != 0) 6078 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6079 strerror(errno)); 6080 return (ret != 0); 6081 } 6082 6083 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6084 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6085 "filesystem\n"), cmdname, path); 6086 return (1); 6087 } 6088 6089 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6090 ZFS_TYPE_FILESYSTEM)) == NULL) 6091 return (1); 6092 6093 ret = 1; 6094 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6095 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6096 cmdname, path, strerror(errno)); 6097 goto out; 6098 } else if (statbuf.st_ino != path_inode) { 6099 (void) fprintf(stderr, gettext("cannot " 6100 "%s '%s': not a mountpoint\n"), cmdname, path); 6101 goto out; 6102 } 6103 6104 if (op == OP_SHARE) { 6105 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6106 char smbshare_prop[ZFS_MAXPROPLEN]; 6107 6108 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6109 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6110 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6111 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6112 6113 if (strcmp(nfs_mnt_prop, "off") == 0 && 6114 strcmp(smbshare_prop, "off") == 0) { 6115 (void) fprintf(stderr, gettext("cannot unshare " 6116 "'%s': legacy share\n"), path); 6117 (void) fprintf(stderr, gettext("use " 6118 "unshare(1M) to unshare this filesystem\n")); 6119 } else if (!zfs_is_shared(zhp)) { 6120 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6121 "not currently shared\n"), path); 6122 } else { 6123 ret = zfs_unshareall_bypath(zhp, path); 6124 } 6125 } else { 6126 char mtpt_prop[ZFS_MAXPROPLEN]; 6127 6128 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6129 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6130 6131 if (is_manual) { 6132 ret = zfs_unmount(zhp, NULL, flags); 6133 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6134 (void) fprintf(stderr, gettext("cannot unmount " 6135 "'%s': legacy mountpoint\n"), 6136 zfs_get_name(zhp)); 6137 (void) fprintf(stderr, gettext("use umount(1M) " 6138 "to unmount this filesystem\n")); 6139 } else { 6140 ret = zfs_unmountall(zhp, flags); 6141 } 6142 } 6143 6144 out: 6145 zfs_close(zhp); 6146 6147 return (ret != 0); 6148 } 6149 6150 /* 6151 * Generic callback for unsharing or unmounting a filesystem. 6152 */ 6153 static int 6154 unshare_unmount(int op, int argc, char **argv) 6155 { 6156 int do_all = 0; 6157 int flags = 0; 6158 int ret = 0; 6159 int c; 6160 zfs_handle_t *zhp; 6161 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6162 char sharesmb[ZFS_MAXPROPLEN]; 6163 6164 /* check options */ 6165 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6166 switch (c) { 6167 case 'a': 6168 do_all = 1; 6169 break; 6170 case 'f': 6171 flags = MS_FORCE; 6172 break; 6173 case '?': 6174 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6175 optopt); 6176 usage(B_FALSE); 6177 } 6178 } 6179 6180 argc -= optind; 6181 argv += optind; 6182 6183 if (do_all) { 6184 /* 6185 * We could make use of zfs_for_each() to walk all datasets in 6186 * the system, but this would be very inefficient, especially 6187 * since we would have to linearly search /etc/mnttab for each 6188 * one. Instead, do one pass through /etc/mnttab looking for 6189 * zfs entries and call zfs_unmount() for each one. 6190 * 6191 * Things get a little tricky if the administrator has created 6192 * mountpoints beneath other ZFS filesystems. In this case, we 6193 * have to unmount the deepest filesystems first. To accomplish 6194 * this, we place all the mountpoints in an AVL tree sorted by 6195 * the special type (dataset name), and walk the result in 6196 * reverse to make sure to get any snapshots first. 6197 */ 6198 struct mnttab entry; 6199 uu_avl_pool_t *pool; 6200 uu_avl_t *tree; 6201 unshare_unmount_node_t *node; 6202 uu_avl_index_t idx; 6203 uu_avl_walk_t *walk; 6204 6205 if (argc != 0) { 6206 (void) fprintf(stderr, gettext("too many arguments\n")); 6207 usage(B_FALSE); 6208 } 6209 6210 if (((pool = uu_avl_pool_create("unmount_pool", 6211 sizeof (unshare_unmount_node_t), 6212 offsetof(unshare_unmount_node_t, un_avlnode), 6213 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6214 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6215 nomem(); 6216 6217 rewind(mnttab_file); 6218 while (getmntent(mnttab_file, &entry) == 0) { 6219 6220 /* ignore non-ZFS entries */ 6221 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6222 continue; 6223 6224 /* ignore snapshots */ 6225 if (strchr(entry.mnt_special, '@') != NULL) 6226 continue; 6227 6228 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6229 ZFS_TYPE_FILESYSTEM)) == NULL) { 6230 ret = 1; 6231 continue; 6232 } 6233 6234 switch (op) { 6235 case OP_SHARE: 6236 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6237 nfs_mnt_prop, 6238 sizeof (nfs_mnt_prop), 6239 NULL, NULL, 0, B_FALSE) == 0); 6240 if (strcmp(nfs_mnt_prop, "off") != 0) 6241 break; 6242 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6243 nfs_mnt_prop, 6244 sizeof (nfs_mnt_prop), 6245 NULL, NULL, 0, B_FALSE) == 0); 6246 if (strcmp(nfs_mnt_prop, "off") == 0) 6247 continue; 6248 break; 6249 case OP_MOUNT: 6250 /* Ignore legacy mounts */ 6251 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6252 nfs_mnt_prop, 6253 sizeof (nfs_mnt_prop), 6254 NULL, NULL, 0, B_FALSE) == 0); 6255 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6256 continue; 6257 /* Ignore canmount=noauto mounts */ 6258 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6259 ZFS_CANMOUNT_NOAUTO) 6260 continue; 6261 default: 6262 break; 6263 } 6264 6265 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6266 node->un_zhp = zhp; 6267 node->un_mountp = safe_strdup(entry.mnt_mountp); 6268 6269 uu_avl_node_init(node, &node->un_avlnode, pool); 6270 6271 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6272 uu_avl_insert(tree, node, idx); 6273 } else { 6274 zfs_close(node->un_zhp); 6275 free(node->un_mountp); 6276 free(node); 6277 } 6278 } 6279 6280 /* 6281 * Walk the AVL tree in reverse, unmounting each filesystem and 6282 * removing it from the AVL tree in the process. 6283 */ 6284 if ((walk = uu_avl_walk_start(tree, 6285 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6286 nomem(); 6287 6288 while ((node = uu_avl_walk_next(walk)) != NULL) { 6289 uu_avl_remove(tree, node); 6290 6291 switch (op) { 6292 case OP_SHARE: 6293 if (zfs_unshareall_bypath(node->un_zhp, 6294 node->un_mountp) != 0) 6295 ret = 1; 6296 break; 6297 6298 case OP_MOUNT: 6299 if (zfs_unmount(node->un_zhp, 6300 node->un_mountp, flags) != 0) 6301 ret = 1; 6302 break; 6303 } 6304 6305 zfs_close(node->un_zhp); 6306 free(node->un_mountp); 6307 free(node); 6308 } 6309 6310 uu_avl_walk_end(walk); 6311 uu_avl_destroy(tree); 6312 uu_avl_pool_destroy(pool); 6313 6314 } else { 6315 if (argc != 1) { 6316 if (argc == 0) 6317 (void) fprintf(stderr, 6318 gettext("missing filesystem argument\n")); 6319 else 6320 (void) fprintf(stderr, 6321 gettext("too many arguments\n")); 6322 usage(B_FALSE); 6323 } 6324 6325 /* 6326 * We have an argument, but it may be a full path or a ZFS 6327 * filesystem. Pass full paths off to unmount_path() (shared by 6328 * manual_unmount), otherwise open the filesystem and pass to 6329 * zfs_unmount(). 6330 */ 6331 if (argv[0][0] == '/') 6332 return (unshare_unmount_path(op, argv[0], 6333 flags, B_FALSE)); 6334 6335 if ((zhp = zfs_open(g_zfs, argv[0], 6336 ZFS_TYPE_FILESYSTEM)) == NULL) 6337 return (1); 6338 6339 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6340 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6341 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6342 NULL, 0, B_FALSE) == 0); 6343 6344 switch (op) { 6345 case OP_SHARE: 6346 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6347 nfs_mnt_prop, 6348 sizeof (nfs_mnt_prop), 6349 NULL, NULL, 0, B_FALSE) == 0); 6350 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6351 sharesmb, sizeof (sharesmb), NULL, NULL, 6352 0, B_FALSE) == 0); 6353 6354 if (strcmp(nfs_mnt_prop, "off") == 0 && 6355 strcmp(sharesmb, "off") == 0) { 6356 (void) fprintf(stderr, gettext("cannot " 6357 "unshare '%s': legacy share\n"), 6358 zfs_get_name(zhp)); 6359 (void) fprintf(stderr, gettext("use " 6360 "unshare(1M) to unshare this " 6361 "filesystem\n")); 6362 ret = 1; 6363 } else if (!zfs_is_shared(zhp)) { 6364 (void) fprintf(stderr, gettext("cannot " 6365 "unshare '%s': not currently " 6366 "shared\n"), zfs_get_name(zhp)); 6367 ret = 1; 6368 } else if (zfs_unshareall(zhp) != 0) { 6369 ret = 1; 6370 } 6371 break; 6372 6373 case OP_MOUNT: 6374 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6375 (void) fprintf(stderr, gettext("cannot " 6376 "unmount '%s': legacy " 6377 "mountpoint\n"), zfs_get_name(zhp)); 6378 (void) fprintf(stderr, gettext("use " 6379 "umount(1M) to unmount this " 6380 "filesystem\n")); 6381 ret = 1; 6382 } else if (!zfs_is_mounted(zhp, NULL)) { 6383 (void) fprintf(stderr, gettext("cannot " 6384 "unmount '%s': not currently " 6385 "mounted\n"), 6386 zfs_get_name(zhp)); 6387 ret = 1; 6388 } else if (zfs_unmountall(zhp, flags) != 0) { 6389 ret = 1; 6390 } 6391 break; 6392 } 6393 6394 zfs_close(zhp); 6395 } 6396 6397 return (ret); 6398 } 6399 6400 /* 6401 * zfs unmount -a 6402 * zfs unmount filesystem 6403 * 6404 * Unmount all filesystems, or a specific ZFS filesystem. 6405 */ 6406 static int 6407 zfs_do_unmount(int argc, char **argv) 6408 { 6409 return (unshare_unmount(OP_MOUNT, argc, argv)); 6410 } 6411 6412 /* 6413 * zfs unshare -a 6414 * zfs unshare filesystem 6415 * 6416 * Unshare all filesystems, or a specific ZFS filesystem. 6417 */ 6418 static int 6419 zfs_do_unshare(int argc, char **argv) 6420 { 6421 return (unshare_unmount(OP_SHARE, argc, argv)); 6422 } 6423 6424 /* 6425 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6426 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6427 */ 6428 static int 6429 manual_mount(int argc, char **argv) 6430 { 6431 zfs_handle_t *zhp; 6432 char mountpoint[ZFS_MAXPROPLEN]; 6433 char mntopts[MNT_LINE_MAX] = { '\0' }; 6434 int ret = 0; 6435 int c; 6436 int flags = 0; 6437 char *dataset, *path; 6438 6439 /* check options */ 6440 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6441 switch (c) { 6442 case 'o': 6443 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6444 break; 6445 case 'O': 6446 flags |= MS_OVERLAY; 6447 break; 6448 case 'm': 6449 flags |= MS_NOMNTTAB; 6450 break; 6451 case ':': 6452 (void) fprintf(stderr, gettext("missing argument for " 6453 "'%c' option\n"), optopt); 6454 usage(B_FALSE); 6455 break; 6456 case '?': 6457 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6458 optopt); 6459 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6460 "<path>\n")); 6461 return (2); 6462 } 6463 } 6464 6465 argc -= optind; 6466 argv += optind; 6467 6468 /* check that we only have two arguments */ 6469 if (argc != 2) { 6470 if (argc == 0) 6471 (void) fprintf(stderr, gettext("missing dataset " 6472 "argument\n")); 6473 else if (argc == 1) 6474 (void) fprintf(stderr, 6475 gettext("missing mountpoint argument\n")); 6476 else 6477 (void) fprintf(stderr, gettext("too many arguments\n")); 6478 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6479 return (2); 6480 } 6481 6482 dataset = argv[0]; 6483 path = argv[1]; 6484 6485 /* try to open the dataset */ 6486 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6487 return (1); 6488 6489 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6490 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6491 6492 /* check for legacy mountpoint and complain appropriately */ 6493 ret = 0; 6494 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6495 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6496 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6497 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6498 strerror(errno)); 6499 ret = 1; 6500 } 6501 } else { 6502 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6503 "mounted using 'mount -F zfs'\n"), dataset); 6504 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6505 "instead.\n"), path); 6506 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6507 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6508 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6509 "information.\n")); 6510 ret = 1; 6511 } 6512 6513 return (ret); 6514 } 6515 6516 /* 6517 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6518 * unmounts of non-legacy filesystems, as this is the dominant administrative 6519 * interface. 6520 */ 6521 static int 6522 manual_unmount(int argc, char **argv) 6523 { 6524 int flags = 0; 6525 int c; 6526 6527 /* check options */ 6528 while ((c = getopt(argc, argv, "f")) != -1) { 6529 switch (c) { 6530 case 'f': 6531 flags = MS_FORCE; 6532 break; 6533 case '?': 6534 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6535 optopt); 6536 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6537 "<path>\n")); 6538 return (2); 6539 } 6540 } 6541 6542 argc -= optind; 6543 argv += optind; 6544 6545 /* check arguments */ 6546 if (argc != 1) { 6547 if (argc == 0) 6548 (void) fprintf(stderr, gettext("missing path " 6549 "argument\n")); 6550 else 6551 (void) fprintf(stderr, gettext("too many arguments\n")); 6552 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6553 return (2); 6554 } 6555 6556 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6557 } 6558 6559 static int 6560 find_command_idx(char *command, int *idx) 6561 { 6562 int i; 6563 6564 for (i = 0; i < NCOMMAND; i++) { 6565 if (command_table[i].name == NULL) 6566 continue; 6567 6568 if (strcmp(command, command_table[i].name) == 0) { 6569 *idx = i; 6570 return (0); 6571 } 6572 } 6573 return (1); 6574 } 6575 6576 static int 6577 zfs_do_diff(int argc, char **argv) 6578 { 6579 zfs_handle_t *zhp; 6580 int flags = 0; 6581 char *tosnap = NULL; 6582 char *fromsnap = NULL; 6583 char *atp, *copy; 6584 int err = 0; 6585 int c; 6586 6587 while ((c = getopt(argc, argv, "FHt")) != -1) { 6588 switch (c) { 6589 case 'F': 6590 flags |= ZFS_DIFF_CLASSIFY; 6591 break; 6592 case 'H': 6593 flags |= ZFS_DIFF_PARSEABLE; 6594 break; 6595 case 't': 6596 flags |= ZFS_DIFF_TIMESTAMP; 6597 break; 6598 default: 6599 (void) fprintf(stderr, 6600 gettext("invalid option '%c'\n"), optopt); 6601 usage(B_FALSE); 6602 } 6603 } 6604 6605 argc -= optind; 6606 argv += optind; 6607 6608 if (argc < 1) { 6609 (void) fprintf(stderr, 6610 gettext("must provide at least one snapshot name\n")); 6611 usage(B_FALSE); 6612 } 6613 6614 if (argc > 2) { 6615 (void) fprintf(stderr, gettext("too many arguments\n")); 6616 usage(B_FALSE); 6617 } 6618 6619 fromsnap = argv[0]; 6620 tosnap = (argc == 2) ? argv[1] : NULL; 6621 6622 copy = NULL; 6623 if (*fromsnap != '@') 6624 copy = strdup(fromsnap); 6625 else if (tosnap) 6626 copy = strdup(tosnap); 6627 if (copy == NULL) 6628 usage(B_FALSE); 6629 6630 if (atp = strchr(copy, '@')) 6631 *atp = '\0'; 6632 6633 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6634 return (1); 6635 6636 free(copy); 6637 6638 /* 6639 * Ignore SIGPIPE so that the library can give us 6640 * information on any failure 6641 */ 6642 (void) sigignore(SIGPIPE); 6643 6644 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6645 6646 zfs_close(zhp); 6647 6648 return (err != 0); 6649 } 6650 6651 /* 6652 * zfs bookmark <fs@snap> <fs#bmark> 6653 * 6654 * Creates a bookmark with the given name from the given snapshot. 6655 */ 6656 static int 6657 zfs_do_bookmark(int argc, char **argv) 6658 { 6659 char snapname[ZFS_MAXNAMELEN]; 6660 zfs_handle_t *zhp; 6661 nvlist_t *nvl; 6662 int ret = 0; 6663 int c; 6664 6665 /* check options */ 6666 while ((c = getopt(argc, argv, "")) != -1) { 6667 switch (c) { 6668 case '?': 6669 (void) fprintf(stderr, 6670 gettext("invalid option '%c'\n"), optopt); 6671 goto usage; 6672 } 6673 } 6674 6675 argc -= optind; 6676 argv += optind; 6677 6678 /* check number of arguments */ 6679 if (argc < 1) { 6680 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 6681 goto usage; 6682 } 6683 if (argc < 2) { 6684 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 6685 goto usage; 6686 } 6687 6688 if (strchr(argv[1], '#') == NULL) { 6689 (void) fprintf(stderr, 6690 gettext("invalid bookmark name '%s' -- " 6691 "must contain a '#'\n"), argv[1]); 6692 goto usage; 6693 } 6694 6695 if (argv[0][0] == '@') { 6696 /* 6697 * Snapshot name begins with @. 6698 * Default to same fs as bookmark. 6699 */ 6700 (void) strncpy(snapname, argv[1], sizeof (snapname)); 6701 *strchr(snapname, '#') = '\0'; 6702 (void) strlcat(snapname, argv[0], sizeof (snapname)); 6703 } else { 6704 (void) strncpy(snapname, argv[0], sizeof (snapname)); 6705 } 6706 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 6707 if (zhp == NULL) 6708 goto usage; 6709 zfs_close(zhp); 6710 6711 6712 nvl = fnvlist_alloc(); 6713 fnvlist_add_string(nvl, argv[1], snapname); 6714 ret = lzc_bookmark(nvl, NULL); 6715 fnvlist_free(nvl); 6716 6717 if (ret != 0) { 6718 const char *err_msg; 6719 char errbuf[1024]; 6720 6721 (void) snprintf(errbuf, sizeof (errbuf), 6722 dgettext(TEXT_DOMAIN, 6723 "cannot create bookmark '%s'"), argv[1]); 6724 6725 switch (ret) { 6726 case EXDEV: 6727 err_msg = "bookmark is in a different pool"; 6728 break; 6729 case EEXIST: 6730 err_msg = "bookmark exists"; 6731 break; 6732 case EINVAL: 6733 err_msg = "invalid argument"; 6734 break; 6735 case ENOTSUP: 6736 err_msg = "bookmark feature not enabled"; 6737 break; 6738 case ENOSPC: 6739 err_msg = "out of space"; 6740 break; 6741 default: 6742 err_msg = "unknown error"; 6743 break; 6744 } 6745 (void) fprintf(stderr, "%s: %s\n", errbuf, 6746 dgettext(TEXT_DOMAIN, err_msg)); 6747 } 6748 6749 return (ret != 0); 6750 6751 usage: 6752 usage(B_FALSE); 6753 return (-1); 6754 } 6755 6756 int 6757 main(int argc, char **argv) 6758 { 6759 int ret = 0; 6760 int i; 6761 char *progname; 6762 char *cmdname; 6763 6764 (void) setlocale(LC_ALL, ""); 6765 (void) textdomain(TEXT_DOMAIN); 6766 6767 opterr = 0; 6768 6769 if ((g_zfs = libzfs_init()) == NULL) { 6770 (void) fprintf(stderr, gettext("internal error: failed to " 6771 "initialize ZFS library\n")); 6772 return (1); 6773 } 6774 6775 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 6776 6777 libzfs_print_on_error(g_zfs, B_TRUE); 6778 6779 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 6780 (void) fprintf(stderr, gettext("internal error: unable to " 6781 "open %s\n"), MNTTAB); 6782 return (1); 6783 } 6784 6785 /* 6786 * This command also doubles as the /etc/fs mount and unmount program. 6787 * Determine if we should take this behavior based on argv[0]. 6788 */ 6789 progname = basename(argv[0]); 6790 if (strcmp(progname, "mount") == 0) { 6791 ret = manual_mount(argc, argv); 6792 } else if (strcmp(progname, "umount") == 0) { 6793 ret = manual_unmount(argc, argv); 6794 } else { 6795 /* 6796 * Make sure the user has specified some command. 6797 */ 6798 if (argc < 2) { 6799 (void) fprintf(stderr, gettext("missing command\n")); 6800 usage(B_FALSE); 6801 } 6802 6803 cmdname = argv[1]; 6804 6805 /* 6806 * The 'umount' command is an alias for 'unmount' 6807 */ 6808 if (strcmp(cmdname, "umount") == 0) 6809 cmdname = "unmount"; 6810 6811 /* 6812 * The 'recv' command is an alias for 'receive' 6813 */ 6814 if (strcmp(cmdname, "recv") == 0) 6815 cmdname = "receive"; 6816 6817 /* 6818 * The 'snap' command is an alias for 'snapshot' 6819 */ 6820 if (strcmp(cmdname, "snap") == 0) 6821 cmdname = "snapshot"; 6822 6823 /* 6824 * Special case '-?' 6825 */ 6826 if (strcmp(cmdname, "-?") == 0) 6827 usage(B_TRUE); 6828 6829 /* 6830 * Run the appropriate command. 6831 */ 6832 libzfs_mnttab_cache(g_zfs, B_TRUE); 6833 if (find_command_idx(cmdname, &i) == 0) { 6834 current_command = &command_table[i]; 6835 ret = command_table[i].func(argc - 1, argv + 1); 6836 } else if (strchr(cmdname, '=') != NULL) { 6837 verify(find_command_idx("set", &i) == 0); 6838 current_command = &command_table[i]; 6839 ret = command_table[i].func(argc, argv); 6840 } else { 6841 (void) fprintf(stderr, gettext("unrecognized " 6842 "command '%s'\n"), cmdname); 6843 usage(B_FALSE); 6844 } 6845 libzfs_mnttab_cache(g_zfs, B_FALSE); 6846 } 6847 6848 (void) fclose(mnttab_file); 6849 6850 if (ret == 0 && log_history) 6851 (void) zpool_log_history(g_zfs, history_str); 6852 6853 libzfs_fini(g_zfs); 6854 6855 /* 6856 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 6857 * for the purposes of running ::findleaks. 6858 */ 6859 if (getenv("ZFS_ABORT") != NULL) { 6860 (void) printf("dumping core by request\n"); 6861 abort(); 6862 } 6863 6864 return (ret); 6865 } 6866