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